summaryrefslogtreecommitdiffstats
path: root/tools/profiler/core
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
commit0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch)
treea31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /tools/profiler/core
parentInitial commit. (diff)
downloadfirefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz
firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/profiler/core')
-rw-r--r--tools/profiler/core/EHABIStackWalk.cpp597
-rw-r--r--tools/profiler/core/EHABIStackWalk.h28
-rw-r--r--tools/profiler/core/MicroGeckoProfiler.cpp203
-rw-r--r--tools/profiler/core/PageInformation.cpp44
-rw-r--r--tools/profiler/core/PageInformation.h68
-rw-r--r--tools/profiler/core/PlatformMacros.h130
-rw-r--r--tools/profiler/core/PowerCounters-linux.cpp287
-rw-r--r--tools/profiler/core/PowerCounters-mac-amd64.cpp419
-rw-r--r--tools/profiler/core/PowerCounters-mac-arm64.cpp47
-rw-r--r--tools/profiler/core/PowerCounters-win.cpp342
-rw-r--r--tools/profiler/core/PowerCounters.h52
-rw-r--r--tools/profiler/core/ProfileAdditionalInformation.cpp102
-rw-r--r--tools/profiler/core/ProfileBuffer.cpp243
-rw-r--r--tools/profiler/core/ProfileBuffer.h260
-rw-r--r--tools/profiler/core/ProfileBufferEntry.cpp2321
-rw-r--r--tools/profiler/core/ProfileBufferEntry.h532
-rw-r--r--tools/profiler/core/ProfiledThreadData.cpp455
-rw-r--r--tools/profiler/core/ProfiledThreadData.h250
-rw-r--r--tools/profiler/core/ProfilerBacktrace.cpp101
-rw-r--r--tools/profiler/core/ProfilerBacktrace.h184
-rw-r--r--tools/profiler/core/ProfilerBindings.cpp386
-rw-r--r--tools/profiler/core/ProfilerCodeAddressService.cpp75
-rw-r--r--tools/profiler/core/ProfilerMarkers.cpp32
-rw-r--r--tools/profiler/core/ProfilerThreadRegistration.cpp198
-rw-r--r--tools/profiler/core/ProfilerThreadRegistrationData.cpp303
-rw-r--r--tools/profiler/core/ProfilerThreadRegistry.cpp40
-rw-r--r--tools/profiler/core/ProfilerUtils.cpp118
-rw-r--r--tools/profiler/core/VTuneProfiler.cpp80
-rw-r--r--tools/profiler/core/VTuneProfiler.h78
-rw-r--r--tools/profiler/core/memory_hooks.cpp632
-rw-r--r--tools/profiler/core/memory_hooks.h25
-rw-r--r--tools/profiler/core/platform-linux-android.cpp636
-rw-r--r--tools/profiler/core/platform-macos.cpp297
-rw-r--r--tools/profiler/core/platform-win32.cpp496
-rw-r--r--tools/profiler/core/platform.cpp7067
-rw-r--r--tools/profiler/core/platform.h381
-rw-r--r--tools/profiler/core/shared-libraries-linux.cc280
-rw-r--r--tools/profiler/core/shared-libraries-macos.cc211
-rw-r--r--tools/profiler/core/shared-libraries-win32.cc167
-rw-r--r--tools/profiler/core/vtune/ittnotify.h4123
40 files changed, 22290 insertions, 0 deletions
diff --git a/tools/profiler/core/EHABIStackWalk.cpp b/tools/profiler/core/EHABIStackWalk.cpp
new file mode 100644
index 0000000000..e3099b89ec
--- /dev/null
+++ b/tools/profiler/core/EHABIStackWalk.cpp
@@ -0,0 +1,597 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This is an implementation of stack unwinding according to a subset
+ * of the ARM Exception Handling ABI, as described in:
+ * http://infocenter.arm.com/help/topic/com.arm.doc.ihi0038a/IHI0038A_ehabi.pdf
+ *
+ * This handles only the ARM-defined "personality routines" (chapter
+ * 9), and don't track the value of FP registers, because profiling
+ * needs only chain of PC/SP values.
+ *
+ * Because the exception handling info may not be accurate for all
+ * possible places where an async signal could occur (e.g., in a
+ * prologue or epilogue), this bounds-checks all stack accesses.
+ *
+ * This file uses "struct" for structures in the exception tables and
+ * "class" otherwise. We should avoid violating the C++11
+ * standard-layout rules in the former.
+ */
+
+#include "EHABIStackWalk.h"
+
+#include "shared-libraries.h"
+#include "platform.h"
+
+#include "mozilla/Atomics.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/DebugOnly.h"
+#include "mozilla/EndianUtils.h"
+
+#include <algorithm>
+#include <elf.h>
+#include <stdint.h>
+#include <vector>
+#include <string>
+
+#ifndef PT_ARM_EXIDX
+# define PT_ARM_EXIDX 0x70000001
+#endif
+
+namespace mozilla {
+
+struct PRel31 {
+ uint32_t mBits;
+ bool topBit() const { return mBits & 0x80000000; }
+ uint32_t value() const { return mBits & 0x7fffffff; }
+ int32_t offset() const { return (static_cast<int32_t>(mBits) << 1) >> 1; }
+ const void* compute() const {
+ return reinterpret_cast<const char*>(this) + offset();
+ }
+
+ private:
+ PRel31(const PRel31& copied) = delete;
+ PRel31() = delete;
+};
+
+struct EHEntry {
+ PRel31 startPC;
+ PRel31 exidx;
+
+ private:
+ EHEntry(const EHEntry& copied) = delete;
+ EHEntry() = delete;
+};
+
+class EHState {
+ // Note that any core register can be used as a "frame pointer" to
+ // influence the unwinding process, so this must track all of them.
+ uint32_t mRegs[16];
+
+ public:
+ bool unwind(const EHEntry* aEntry, const void* stackBase);
+ uint32_t& operator[](int i) { return mRegs[i]; }
+ const uint32_t& operator[](int i) const { return mRegs[i]; }
+ explicit EHState(const mcontext_t&);
+};
+
+enum { R_SP = 13, R_LR = 14, R_PC = 15 };
+
+class EHTable {
+ uint32_t mStartPC;
+ uint32_t mEndPC;
+ uint32_t mBaseAddress;
+ const EHEntry* mEntriesBegin;
+ const EHEntry* mEntriesEnd;
+ std::string mName;
+
+ public:
+ EHTable(const void* aELF, size_t aSize, const std::string& aName);
+ const EHEntry* lookup(uint32_t aPC) const;
+ bool isValid() const { return mEntriesEnd != mEntriesBegin; }
+ const std::string& name() const { return mName; }
+ uint32_t startPC() const { return mStartPC; }
+ uint32_t endPC() const { return mEndPC; }
+ uint32_t baseAddress() const { return mBaseAddress; }
+};
+
+class EHAddrSpace {
+ std::vector<uint32_t> mStarts;
+ std::vector<EHTable> mTables;
+ static mozilla::Atomic<const EHAddrSpace*> sCurrent;
+
+ public:
+ explicit EHAddrSpace(const std::vector<EHTable>& aTables);
+ const EHTable* lookup(uint32_t aPC) const;
+ static void Update();
+ static const EHAddrSpace* Get();
+};
+
+void EHABIStackWalkInit() { EHAddrSpace::Update(); }
+
+size_t EHABIStackWalk(const mcontext_t& aContext, void* stackBase, void** aSPs,
+ void** aPCs, const size_t aNumFrames) {
+ const EHAddrSpace* space = EHAddrSpace::Get();
+ EHState state(aContext);
+ size_t count = 0;
+
+ while (count < aNumFrames) {
+ uint32_t pc = state[R_PC], sp = state[R_SP];
+
+ // ARM instructions are always aligned to 2 or 4 bytes.
+ // The last bit of the pc / lr indicates ARM or Thumb mode.
+ // We're only interested in the instruction address, so we mask off that
+ // bit.
+ constexpr uint32_t instrAddrMask = ~1;
+ uint32_t instrAddress = pc & instrAddrMask;
+
+ aPCs[count] = reinterpret_cast<void*>(instrAddress);
+ aSPs[count] = reinterpret_cast<void*>(sp);
+ count++;
+
+ if (!space) break;
+ // TODO: cache these lookups. Binary-searching libxul is
+ // expensive (possibly more expensive than doing the actual
+ // unwind), and even a small cache should help.
+ const EHTable* table = space->lookup(pc);
+ if (!table) break;
+ const EHEntry* entry = table->lookup(pc);
+ if (!entry) break;
+ if (!state.unwind(entry, stackBase)) break;
+ }
+
+ return count;
+}
+
+class EHInterp {
+ public:
+ // Note that stackLimit is exclusive and stackBase is inclusive
+ // (i.e, stackLimit < SP <= stackBase), following the convention
+ // set by the AAPCS spec.
+ EHInterp(EHState& aState, const EHEntry* aEntry, uint32_t aStackLimit,
+ uint32_t aStackBase)
+ : mState(aState),
+ mStackLimit(aStackLimit),
+ mStackBase(aStackBase),
+ mNextWord(0),
+ mWordsLeft(0),
+ mFailed(false) {
+ const PRel31& exidx = aEntry->exidx;
+ uint32_t firstWord;
+
+ if (exidx.mBits == 1) { // EXIDX_CANTUNWIND
+ mFailed = true;
+ return;
+ }
+ if (exidx.topBit()) {
+ firstWord = exidx.mBits;
+ } else {
+ mNextWord = reinterpret_cast<const uint32_t*>(exidx.compute());
+ firstWord = *mNextWord++;
+ }
+
+ switch (firstWord >> 24) {
+ case 0x80: // short
+ mWord = firstWord << 8;
+ mBytesLeft = 3;
+ break;
+ case 0x81:
+ case 0x82: // long; catch descriptor size ignored
+ mWord = firstWord << 16;
+ mBytesLeft = 2;
+ mWordsLeft = (firstWord >> 16) & 0xff;
+ break;
+ default:
+ // unknown personality
+ mFailed = true;
+ }
+ }
+
+ bool unwind();
+
+ private:
+ // TODO: GCC has been observed not CSEing repeated reads of
+ // mState[R_SP] with writes to mFailed between them, suggesting that
+ // it hasn't determined that they can't alias and is thus missing
+ // optimization opportunities. So, we may want to flatten EHState
+ // into this class; this may also make the code simpler.
+ EHState& mState;
+ uint32_t mStackLimit;
+ uint32_t mStackBase;
+ const uint32_t* mNextWord;
+ uint32_t mWord;
+ uint8_t mWordsLeft;
+ uint8_t mBytesLeft;
+ bool mFailed;
+
+ enum {
+ I_ADDSP = 0x00, // 0sxxxxxx (subtract if s)
+ M_ADDSP = 0x80,
+ I_POPMASK = 0x80, // 1000iiii iiiiiiii (if any i set)
+ M_POPMASK = 0xf0,
+ I_MOVSP = 0x90, // 1001nnnn
+ M_MOVSP = 0xf0,
+ I_POPN = 0xa0, // 1010lnnn
+ M_POPN = 0xf0,
+ I_FINISH = 0xb0, // 10110000
+ I_POPLO = 0xb1, // 10110001 0000iiii (if any i set)
+ I_ADDSPBIG = 0xb2, // 10110010 uleb128
+ I_POPFDX = 0xb3, // 10110011 sssscccc
+ I_POPFDX8 = 0xb8, // 10111nnn
+ M_POPFDX8 = 0xf8,
+ // "Intel Wireless MMX" extensions omitted.
+ I_POPFDD = 0xc8, // 1100100h sssscccc
+ M_POPFDD = 0xfe,
+ I_POPFDD8 = 0xd0, // 11010nnn
+ M_POPFDD8 = 0xf8
+ };
+
+ uint8_t next() {
+ if (mBytesLeft == 0) {
+ if (mWordsLeft == 0) {
+ return I_FINISH;
+ }
+ mWordsLeft--;
+ mWord = *mNextWord++;
+ mBytesLeft = 4;
+ }
+ mBytesLeft--;
+ mWord = (mWord << 8) | (mWord >> 24); // rotate
+ return mWord;
+ }
+
+ uint32_t& vSP() { return mState[R_SP]; }
+ uint32_t* ptrSP() { return reinterpret_cast<uint32_t*>(vSP()); }
+
+ void checkStackBase() {
+ if (vSP() > mStackBase) mFailed = true;
+ }
+ void checkStackLimit() {
+ if (vSP() <= mStackLimit) mFailed = true;
+ }
+ void checkStackAlign() {
+ if ((vSP() & 3) != 0) mFailed = true;
+ }
+ void checkStack() {
+ checkStackBase();
+ checkStackLimit();
+ checkStackAlign();
+ }
+
+ void popRange(uint8_t first, uint8_t last, uint16_t mask) {
+ bool hasSP = false;
+ uint32_t tmpSP;
+ if (mask == 0) mFailed = true;
+ for (uint8_t r = first; r <= last; ++r) {
+ if (mask & 1) {
+ if (r == R_SP) {
+ hasSP = true;
+ tmpSP = *ptrSP();
+ } else
+ mState[r] = *ptrSP();
+ vSP() += 4;
+ checkStackBase();
+ if (mFailed) return;
+ }
+ mask >>= 1;
+ }
+ if (hasSP) {
+ vSP() = tmpSP;
+ checkStack();
+ }
+ }
+};
+
+bool EHState::unwind(const EHEntry* aEntry, const void* stackBasePtr) {
+ // The unwinding program cannot set SP to less than the initial value.
+ uint32_t stackLimit = mRegs[R_SP] - 4;
+ uint32_t stackBase = reinterpret_cast<uint32_t>(stackBasePtr);
+ EHInterp interp(*this, aEntry, stackLimit, stackBase);
+ return interp.unwind();
+}
+
+bool EHInterp::unwind() {
+ mState[R_PC] = 0;
+ checkStack();
+ while (!mFailed) {
+ uint8_t insn = next();
+#if DEBUG_EHABI_UNWIND
+ LOG("unwind insn = %02x", (unsigned)insn);
+#endif
+ // Try to put the common cases first.
+
+ // 00xxxxxx: vsp = vsp + (xxxxxx << 2) + 4
+ // 01xxxxxx: vsp = vsp - (xxxxxx << 2) - 4
+ if ((insn & M_ADDSP) == I_ADDSP) {
+ uint32_t offset = ((insn & 0x3f) << 2) + 4;
+ if (insn & 0x40) {
+ vSP() -= offset;
+ checkStackLimit();
+ } else {
+ vSP() += offset;
+ checkStackBase();
+ }
+ continue;
+ }
+
+ // 10100nnn: Pop r4-r[4+nnn]
+ // 10101nnn: Pop r4-r[4+nnn], r14
+ if ((insn & M_POPN) == I_POPN) {
+ uint8_t n = (insn & 0x07) + 1;
+ bool lr = insn & 0x08;
+ uint32_t* ptr = ptrSP();
+ vSP() += (n + (lr ? 1 : 0)) * 4;
+ checkStackBase();
+ for (uint8_t r = 4; r < 4 + n; ++r) mState[r] = *ptr++;
+ if (lr) mState[R_LR] = *ptr++;
+ continue;
+ }
+
+ // 1011000: Finish
+ if (insn == I_FINISH) {
+ if (mState[R_PC] == 0) {
+ mState[R_PC] = mState[R_LR];
+ // Non-standard change (bug 916106): Prevent the caller from
+ // re-using LR. Since the caller is by definition not a leaf
+ // routine, it will have to restore LR from somewhere to
+ // return to its own caller, so we can safely zero it here.
+ // This makes a difference only if an error in unwinding
+ // (e.g., caused by starting from within a prologue/epilogue)
+ // causes us to load a pointer to a leaf routine as LR; if we
+ // don't do something, we'll go into an infinite loop of
+ // "returning" to that same function.
+ mState[R_LR] = 0;
+ }
+ return true;
+ }
+
+ // 1001nnnn: Set vsp = r[nnnn]
+ if ((insn & M_MOVSP) == I_MOVSP) {
+ vSP() = mState[insn & 0x0f];
+ checkStack();
+ continue;
+ }
+
+ // 11001000 sssscccc: Pop VFP regs D[16+ssss]-D[16+ssss+cccc] (as FLDMFDD)
+ // 11001001 sssscccc: Pop VFP regs D[ssss]-D[ssss+cccc] (as FLDMFDD)
+ if ((insn & M_POPFDD) == I_POPFDD) {
+ uint8_t n = (next() & 0x0f) + 1;
+ // Note: if the 16+ssss+cccc > 31, the encoding is reserved.
+ // As the space is currently unused, we don't try to check.
+ vSP() += 8 * n;
+ checkStackBase();
+ continue;
+ }
+
+ // 11010nnn: Pop VFP regs D[8]-D[8+nnn] (as FLDMFDD)
+ if ((insn & M_POPFDD8) == I_POPFDD8) {
+ uint8_t n = (insn & 0x07) + 1;
+ vSP() += 8 * n;
+ checkStackBase();
+ continue;
+ }
+
+ // 10110010 uleb128: vsp = vsp + 0x204 + (uleb128 << 2)
+ if (insn == I_ADDSPBIG) {
+ uint32_t acc = 0;
+ uint8_t shift = 0;
+ uint8_t byte;
+ do {
+ if (shift >= 32) return false;
+ byte = next();
+ acc |= (byte & 0x7f) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+ uint32_t offset = 0x204 + (acc << 2);
+ // The calculations above could have overflowed.
+ // But the one we care about is this:
+ if (vSP() + offset < vSP()) mFailed = true;
+ vSP() += offset;
+ // ...so that this is the only other check needed:
+ checkStackBase();
+ continue;
+ }
+
+ // 1000iiii iiiiiiii (i not all 0): Pop under masks {r15-r12}, {r11-r4}
+ if ((insn & M_POPMASK) == I_POPMASK) {
+ popRange(4, 15, ((insn & 0x0f) << 8) | next());
+ continue;
+ }
+
+ // 1011001 0000iiii (i not all 0): Pop under mask {r3-r0}
+ if (insn == I_POPLO) {
+ popRange(0, 3, next() & 0x0f);
+ continue;
+ }
+
+ // 10110011 sssscccc: Pop VFP regs D[ssss]-D[ssss+cccc] (as FLDMFDX)
+ if (insn == I_POPFDX) {
+ uint8_t n = (next() & 0x0f) + 1;
+ vSP() += 8 * n + 4;
+ checkStackBase();
+ continue;
+ }
+
+ // 10111nnn: Pop VFP regs D[8]-D[8+nnn] (as FLDMFDX)
+ if ((insn & M_POPFDX8) == I_POPFDX8) {
+ uint8_t n = (insn & 0x07) + 1;
+ vSP() += 8 * n + 4;
+ checkStackBase();
+ continue;
+ }
+
+ // unhandled instruction
+#ifdef DEBUG_EHABI_UNWIND
+ LOG("Unhandled EHABI instruction 0x%02x", insn);
+#endif
+ mFailed = true;
+ }
+ return false;
+}
+
+bool operator<(const EHTable& lhs, const EHTable& rhs) {
+ return lhs.startPC() < rhs.startPC();
+}
+
+// Async signal unsafe.
+EHAddrSpace::EHAddrSpace(const std::vector<EHTable>& aTables)
+ : mTables(aTables) {
+ std::sort(mTables.begin(), mTables.end());
+ DebugOnly<uint32_t> lastEnd = 0;
+ for (std::vector<EHTable>::iterator i = mTables.begin(); i != mTables.end();
+ ++i) {
+ MOZ_ASSERT(i->startPC() >= lastEnd);
+ mStarts.push_back(i->startPC());
+ lastEnd = i->endPC();
+ }
+}
+
+const EHTable* EHAddrSpace::lookup(uint32_t aPC) const {
+ ptrdiff_t i = (std::upper_bound(mStarts.begin(), mStarts.end(), aPC) -
+ mStarts.begin()) -
+ 1;
+
+ if (i < 0 || aPC >= mTables[i].endPC()) return 0;
+ return &mTables[i];
+}
+
+const EHEntry* EHTable::lookup(uint32_t aPC) const {
+ MOZ_ASSERT(aPC >= mStartPC);
+ if (aPC >= mEndPC) return nullptr;
+
+ const EHEntry* begin = mEntriesBegin;
+ const EHEntry* end = mEntriesEnd;
+ MOZ_ASSERT(begin < end);
+ if (aPC < reinterpret_cast<uint32_t>(begin->startPC.compute()))
+ return nullptr;
+
+ while (end - begin > 1) {
+#ifdef EHABI_UNWIND_MORE_ASSERTS
+ if ((end - 1)->startPC.compute() < begin->startPC.compute()) {
+ MOZ_CRASH("unsorted exidx");
+ }
+#endif
+ const EHEntry* mid = begin + (end - begin) / 2;
+ if (aPC < reinterpret_cast<uint32_t>(mid->startPC.compute()))
+ end = mid;
+ else
+ begin = mid;
+ }
+ return begin;
+}
+
+#if MOZ_LITTLE_ENDIAN()
+static const unsigned char hostEndian = ELFDATA2LSB;
+#elif MOZ_BIG_ENDIAN()
+static const unsigned char hostEndian = ELFDATA2MSB;
+#else
+# error "No endian?"
+#endif
+
+// Async signal unsafe: std::vector::reserve, std::string copy ctor.
+EHTable::EHTable(const void* aELF, size_t aSize, const std::string& aName)
+ : mStartPC(~0), // largest uint32_t
+ mEndPC(0),
+ mEntriesBegin(nullptr),
+ mEntriesEnd(nullptr),
+ mName(aName) {
+ const uint32_t fileHeaderAddr = reinterpret_cast<uint32_t>(aELF);
+
+ if (aSize < sizeof(Elf32_Ehdr)) return;
+
+ const Elf32_Ehdr& file = *(reinterpret_cast<Elf32_Ehdr*>(fileHeaderAddr));
+ if (memcmp(&file.e_ident[EI_MAG0], ELFMAG, SELFMAG) != 0 ||
+ file.e_ident[EI_CLASS] != ELFCLASS32 ||
+ file.e_ident[EI_DATA] != hostEndian ||
+ file.e_ident[EI_VERSION] != EV_CURRENT || file.e_machine != EM_ARM ||
+ file.e_version != EV_CURRENT)
+ // e_flags?
+ return;
+
+ MOZ_ASSERT(file.e_phoff + file.e_phnum * file.e_phentsize <= aSize);
+ const Elf32_Phdr *exidxHdr = 0, *zeroHdr = 0;
+ for (unsigned i = 0; i < file.e_phnum; ++i) {
+ const Elf32_Phdr& phdr = *(reinterpret_cast<Elf32_Phdr*>(
+ fileHeaderAddr + file.e_phoff + i * file.e_phentsize));
+ if (phdr.p_type == PT_ARM_EXIDX) {
+ exidxHdr = &phdr;
+ } else if (phdr.p_type == PT_LOAD) {
+ if (phdr.p_offset == 0) {
+ zeroHdr = &phdr;
+ }
+ if (phdr.p_flags & PF_X) {
+ mStartPC = std::min(mStartPC, phdr.p_vaddr);
+ mEndPC = std::max(mEndPC, phdr.p_vaddr + phdr.p_memsz);
+ }
+ }
+ }
+ if (!exidxHdr) return;
+ if (!zeroHdr) return;
+ mBaseAddress = fileHeaderAddr - zeroHdr->p_vaddr;
+ mStartPC += mBaseAddress;
+ mEndPC += mBaseAddress;
+ mEntriesBegin =
+ reinterpret_cast<const EHEntry*>(mBaseAddress + exidxHdr->p_vaddr);
+ mEntriesEnd = reinterpret_cast<const EHEntry*>(
+ mBaseAddress + exidxHdr->p_vaddr + exidxHdr->p_memsz);
+}
+
+mozilla::Atomic<const EHAddrSpace*> EHAddrSpace::sCurrent(nullptr);
+
+// Async signal safe; can fail if Update() hasn't returned yet.
+const EHAddrSpace* EHAddrSpace::Get() { return sCurrent; }
+
+// Collect unwinding information from loaded objects. Calls after the
+// first have no effect. Async signal unsafe.
+void EHAddrSpace::Update() {
+ const EHAddrSpace* space = sCurrent;
+ if (space) return;
+
+ SharedLibraryInfo info = SharedLibraryInfo::GetInfoForSelf();
+ std::vector<EHTable> tables;
+
+ for (size_t i = 0; i < info.GetSize(); ++i) {
+ const SharedLibrary& lib = info.GetEntry(i);
+ // FIXME: This isn't correct if the start address isn't p_offset 0, because
+ // the start address will not point at the file header. But this is worked
+ // around by magic number checks in the EHTable constructor.
+ EHTable tab(reinterpret_cast<const void*>(lib.GetStart()),
+ lib.GetEnd() - lib.GetStart(), lib.GetNativeDebugPath());
+ if (tab.isValid()) tables.push_back(tab);
+ }
+ space = new EHAddrSpace(tables);
+
+ if (!sCurrent.compareExchange(nullptr, space)) {
+ delete space;
+ space = sCurrent;
+ }
+}
+
+EHState::EHState(const mcontext_t& context) {
+#ifdef linux
+ mRegs[0] = context.arm_r0;
+ mRegs[1] = context.arm_r1;
+ mRegs[2] = context.arm_r2;
+ mRegs[3] = context.arm_r3;
+ mRegs[4] = context.arm_r4;
+ mRegs[5] = context.arm_r5;
+ mRegs[6] = context.arm_r6;
+ mRegs[7] = context.arm_r7;
+ mRegs[8] = context.arm_r8;
+ mRegs[9] = context.arm_r9;
+ mRegs[10] = context.arm_r10;
+ mRegs[11] = context.arm_fp;
+ mRegs[12] = context.arm_ip;
+ mRegs[13] = context.arm_sp;
+ mRegs[14] = context.arm_lr;
+ mRegs[15] = context.arm_pc;
+#else
+# error "Unhandled OS for ARM EHABI unwinding"
+#endif
+}
+
+} // namespace mozilla
diff --git a/tools/profiler/core/EHABIStackWalk.h b/tools/profiler/core/EHABIStackWalk.h
new file mode 100644
index 0000000000..61286290b8
--- /dev/null
+++ b/tools/profiler/core/EHABIStackWalk.h
@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This is an implementation of stack unwinding according to a subset
+ * of the ARM Exception Handling ABI; see the comment at the top of
+ * the .cpp file for details.
+ */
+
+#ifndef mozilla_EHABIStackWalk_h__
+#define mozilla_EHABIStackWalk_h__
+
+#include <stddef.h>
+#include <ucontext.h>
+
+namespace mozilla {
+
+void EHABIStackWalkInit();
+
+size_t EHABIStackWalk(const mcontext_t& aContext, void* stackBase, void** aSPs,
+ void** aPCs, size_t aNumFrames);
+
+} // namespace mozilla
+
+#endif
diff --git a/tools/profiler/core/MicroGeckoProfiler.cpp b/tools/profiler/core/MicroGeckoProfiler.cpp
new file mode 100644
index 0000000000..bedb755742
--- /dev/null
+++ b/tools/profiler/core/MicroGeckoProfiler.cpp
@@ -0,0 +1,203 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "GeckoProfiler.h"
+
+#include "mozilla/Maybe.h"
+#include "nsPrintfCString.h"
+#include "public/GeckoTraceEvent.h"
+
+using namespace mozilla;
+using webrtc::trace_event_internal::TraceValueUnion;
+
+void uprofiler_register_thread(const char* name, void* stacktop) {
+#ifdef MOZ_GECKO_PROFILER
+ profiler_register_thread(name, stacktop);
+#endif // MOZ_GECKO_PROFILER
+}
+
+void uprofiler_unregister_thread() {
+#ifdef MOZ_GECKO_PROFILER
+ profiler_unregister_thread();
+#endif // MOZ_GECKO_PROFILER
+}
+
+#ifdef MOZ_GECKO_PROFILER
+namespace {
+Maybe<MarkerTiming> ToTiming(char phase) {
+ switch (phase) {
+ case 'B':
+ return Some(MarkerTiming::IntervalStart());
+ case 'E':
+ return Some(MarkerTiming::IntervalEnd());
+ case 'I':
+ return Some(MarkerTiming::InstantNow());
+ default:
+ return Nothing();
+ }
+}
+
+struct TraceOption {
+ bool mPassed = false;
+ ProfilerString8View mName;
+ Variant<int64_t, bool, double, ProfilerString8View> mValue = AsVariant(false);
+};
+
+struct TraceMarker {
+ static constexpr int MAX_NUM_ARGS = 2;
+ using OptionsType = std::tuple<TraceOption, TraceOption>;
+ static constexpr mozilla::Span<const char> MarkerTypeName() {
+ return MakeStringSpan("TraceEvent");
+ }
+ static void StreamJSONMarkerData(
+ mozilla::baseprofiler::SpliceableJSONWriter& aWriter,
+ const OptionsType& aArgs) {
+ auto writeValue = [&](const auto& aName, const auto& aVariant) {
+ aVariant.match(
+ [&](const int64_t& aValue) { aWriter.IntProperty(aName, aValue); },
+ [&](const bool& aValue) { aWriter.BoolProperty(aName, aValue); },
+ [&](const double& aValue) { aWriter.DoubleProperty(aName, aValue); },
+ [&](const ProfilerString8View& aValue) {
+ aWriter.StringProperty(aName, aValue);
+ });
+ };
+ if (const auto& arg = std::get<0>(aArgs); arg.mPassed) {
+ aWriter.StringProperty("name1", arg.mName);
+ writeValue("val1", arg.mValue);
+ }
+ if (const auto& arg = std::get<1>(aArgs); arg.mPassed) {
+ aWriter.StringProperty("name2", arg.mName);
+ writeValue("val2", arg.mValue);
+ }
+ }
+ static mozilla::MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::MarkerChart, MS::Location::MarkerTable};
+ schema.SetChartLabel("{marker.name}");
+ schema.SetTableLabel(
+ "{marker.name} {marker.data.name1} {marker.data.val1} "
+ "{marker.data.name2} {marker.data.val2}");
+ schema.AddKeyLabelFormatSearchable("name1", "Key 1", MS::Format::String,
+ MS::Searchable::Searchable);
+ schema.AddKeyLabelFormatSearchable("val1", "Value 1", MS::Format::String,
+ MS::Searchable::Searchable);
+ schema.AddKeyLabelFormatSearchable("name2", "Key 2", MS::Format::String,
+ MS::Searchable::Searchable);
+ schema.AddKeyLabelFormatSearchable("val2", "Value 2", MS::Format::String,
+ MS::Searchable::Searchable);
+ return schema;
+ }
+};
+} // namespace
+
+namespace mozilla {
+template <>
+struct ProfileBufferEntryWriter::Serializer<TraceOption> {
+ static Length Bytes(const TraceOption& aOption) {
+ // 1 byte to store passed flag, then object size if passed.
+ return aOption.mPassed ? (1 + SumBytes(aOption.mName, aOption.mValue)) : 1;
+ }
+
+ static void Write(ProfileBufferEntryWriter& aEW, const TraceOption& aOption) {
+ // 'T'/'t' is just an arbitrary 1-byte value to distinguish states.
+ if (aOption.mPassed) {
+ aEW.WriteObject<char>('T');
+ // Use the Serializer for the name/value pair.
+ aEW.WriteObject(aOption.mName);
+ aEW.WriteObject(aOption.mValue);
+ } else {
+ aEW.WriteObject<char>('t');
+ }
+ }
+};
+
+template <>
+struct ProfileBufferEntryReader::Deserializer<TraceOption> {
+ static void ReadInto(ProfileBufferEntryReader& aER, TraceOption& aOption) {
+ char c = aER.ReadObject<char>();
+ if ((aOption.mPassed = (c == 'T'))) {
+ aER.ReadIntoObject(aOption.mName);
+ aER.ReadIntoObject(aOption.mValue);
+ } else {
+ MOZ_ASSERT(c == 't');
+ }
+ }
+
+ static TraceOption Read(ProfileBufferEntryReader& aER) {
+ TraceOption option;
+ ReadInto(aER, option);
+ return option;
+ }
+};
+} // namespace mozilla
+#endif // MOZ_GECKO_PROFILER
+
+void uprofiler_simple_event_marker(const char* name, char phase, int num_args,
+ const char** arg_names,
+ const unsigned char* arg_types,
+ const unsigned long long* arg_values) {
+#ifdef MOZ_GECKO_PROFILER
+ if (!profiler_thread_is_being_profiled_for_markers()) {
+ return;
+ }
+ Maybe<MarkerTiming> timing = ToTiming(phase);
+ if (!timing) {
+ if (getenv("MOZ_LOG_UNKNOWN_TRACE_EVENT_PHASES")) {
+ fprintf(stderr, "XXX UProfiler: phase not handled: '%c'\n", phase);
+ }
+ return;
+ }
+ MOZ_ASSERT(num_args <= TraceMarker::MAX_NUM_ARGS);
+ TraceMarker::OptionsType tuple;
+ TraceOption* args[2] = {&std::get<0>(tuple), &std::get<1>(tuple)};
+ for (int i = 0; i < std::min(num_args, TraceMarker::MAX_NUM_ARGS); ++i) {
+ auto& arg = *args[i];
+ arg.mPassed = true;
+ arg.mName = ProfilerString8View::WrapNullTerminatedString(arg_names[i]);
+ switch (arg_types[i]) {
+ case TRACE_VALUE_TYPE_UINT:
+ MOZ_ASSERT(arg_values[i] <= std::numeric_limits<int64_t>::max());
+ arg.mValue = AsVariant(static_cast<int64_t>(
+ reinterpret_cast<const TraceValueUnion*>(&arg_values[i])->as_uint));
+ break;
+ case TRACE_VALUE_TYPE_INT:
+ arg.mValue = AsVariant(static_cast<int64_t>(
+ reinterpret_cast<const TraceValueUnion*>(&arg_values[i])->as_int));
+ break;
+ case TRACE_VALUE_TYPE_BOOL:
+ arg.mValue = AsVariant(
+ reinterpret_cast<const TraceValueUnion*>(&arg_values[i])->as_bool);
+ break;
+ case TRACE_VALUE_TYPE_DOUBLE:
+ arg.mValue =
+ AsVariant(reinterpret_cast<const TraceValueUnion*>(&arg_values[i])
+ ->as_double);
+ break;
+ case TRACE_VALUE_TYPE_POINTER:
+ arg.mValue = AsVariant(ProfilerString8View(nsPrintfCString(
+ "%p", reinterpret_cast<const TraceValueUnion*>(&arg_values[i])
+ ->as_pointer)));
+ break;
+ case TRACE_VALUE_TYPE_STRING:
+ arg.mValue = AsVariant(ProfilerString8View::WrapNullTerminatedString(
+ reinterpret_cast<const TraceValueUnion*>(&arg_values[i])
+ ->as_string));
+ break;
+ case TRACE_VALUE_TYPE_COPY_STRING:
+ arg.mValue = AsVariant(ProfilerString8View(
+ nsCString(reinterpret_cast<const TraceValueUnion*>(&arg_values[i])
+ ->as_string)));
+ break;
+ default:
+ MOZ_ASSERT_UNREACHABLE("Unexpected trace value type");
+ arg.mValue = AsVariant(ProfilerString8View(
+ nsPrintfCString("Unexpected type: %u", arg_types[i])));
+ break;
+ }
+ }
+ profiler_add_marker(ProfilerString8View::WrapNullTerminatedString(name),
+ geckoprofiler::category::MEDIA_RT, {timing.extract()},
+ TraceMarker{}, tuple);
+#endif // MOZ_GECKO_PROFILER
+}
diff --git a/tools/profiler/core/PageInformation.cpp b/tools/profiler/core/PageInformation.cpp
new file mode 100644
index 0000000000..83d2d508a1
--- /dev/null
+++ b/tools/profiler/core/PageInformation.cpp
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PageInformation.h"
+
+#include "mozilla/ProfileJSONWriter.h"
+
+PageInformation::PageInformation(uint64_t aTabID, uint64_t aInnerWindowID,
+ const nsCString& aUrl,
+ uint64_t aEmbedderInnerWindowID,
+ bool aIsPrivateBrowsing)
+ : mTabID(aTabID),
+ mInnerWindowID(aInnerWindowID),
+ mUrl(aUrl),
+ mEmbedderInnerWindowID(aEmbedderInnerWindowID),
+ mIsPrivateBrowsing(aIsPrivateBrowsing) {}
+
+bool PageInformation::Equals(PageInformation* aOtherPageInfo) const {
+ // It's enough to check inner window IDs because they are unique for each
+ // page. Therefore, we don't have to check the tab ID or url.
+ return InnerWindowID() == aOtherPageInfo->InnerWindowID();
+}
+
+void PageInformation::StreamJSON(SpliceableJSONWriter& aWriter) const {
+ // Here, we are converting uint64_t to double. Both tab and Inner
+ // Window IDs are created using `nsContentUtils::GenerateProcessSpecificId`,
+ // which is specifically designed to only use 53 of the 64 bits to be lossless
+ // when passed into and out of JS as a double.
+ aWriter.StartObjectElement();
+ aWriter.DoubleProperty("tabID", TabID());
+ aWriter.DoubleProperty("innerWindowID", InnerWindowID());
+ aWriter.StringProperty("url", Url());
+ aWriter.DoubleProperty("embedderInnerWindowID", EmbedderInnerWindowID());
+ aWriter.BoolProperty("isPrivateBrowsing", IsPrivateBrowsing());
+ aWriter.EndObject();
+}
+
+size_t PageInformation::SizeOfIncludingThis(
+ mozilla::MallocSizeOf aMallocSizeOf) const {
+ return aMallocSizeOf(this);
+}
diff --git a/tools/profiler/core/PageInformation.h b/tools/profiler/core/PageInformation.h
new file mode 100644
index 0000000000..6c9039b9a4
--- /dev/null
+++ b/tools/profiler/core/PageInformation.h
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef PageInformation_h
+#define PageInformation_h
+
+#include "mozilla/Maybe.h"
+#include "mozilla/MemoryReporting.h"
+#include "nsISupportsImpl.h"
+#include "nsString.h"
+
+namespace mozilla {
+namespace baseprofiler {
+class SpliceableJSONWriter;
+} // namespace baseprofiler
+} // namespace mozilla
+
+// This class contains information that's relevant to a single page only
+// while the page information is important and registered with the profiler,
+// but regardless of whether the profiler is running. All accesses to it are
+// protected by the profiler state lock.
+// When the page gets unregistered, we keep the profiler buffer position
+// to determine if we are still using this page. If not, we unregister
+// it in the next page registration.
+class PageInformation final {
+ public:
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(PageInformation)
+ PageInformation(uint64_t aTabID, uint64_t aInnerWindowID,
+ const nsCString& aUrl, uint64_t aEmbedderInnerWindowID,
+ bool aIsPrivateBrowsing);
+
+ size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
+ bool Equals(PageInformation* aOtherPageInfo) const;
+ void StreamJSON(mozilla::baseprofiler::SpliceableJSONWriter& aWriter) const;
+
+ uint64_t InnerWindowID() const { return mInnerWindowID; }
+ uint64_t TabID() const { return mTabID; }
+ const nsCString& Url() const { return mUrl; }
+ uint64_t EmbedderInnerWindowID() const { return mEmbedderInnerWindowID; }
+ bool IsPrivateBrowsing() const { return mIsPrivateBrowsing; }
+
+ mozilla::Maybe<uint64_t> BufferPositionWhenUnregistered() const {
+ return mBufferPositionWhenUnregistered;
+ }
+
+ void NotifyUnregistered(uint64_t aBufferPosition) {
+ mBufferPositionWhenUnregistered = mozilla::Some(aBufferPosition);
+ }
+
+ private:
+ const uint64_t mTabID;
+ const uint64_t mInnerWindowID;
+ const nsCString mUrl;
+ const uint64_t mEmbedderInnerWindowID;
+ const bool mIsPrivateBrowsing;
+
+ // Holds the buffer position when page is unregistered.
+ // It's used to determine if we still use this page in the profiler or
+ // not.
+ mozilla::Maybe<uint64_t> mBufferPositionWhenUnregistered;
+
+ virtual ~PageInformation() = default;
+};
+
+#endif // PageInformation_h
diff --git a/tools/profiler/core/PlatformMacros.h b/tools/profiler/core/PlatformMacros.h
new file mode 100644
index 0000000000..c72e94c128
--- /dev/null
+++ b/tools/profiler/core/PlatformMacros.h
@@ -0,0 +1,130 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef PLATFORM_MACROS_H
+#define PLATFORM_MACROS_H
+
+// Define platform selection macros in a consistent way. Don't add anything
+// else to this file, so it can remain freestanding. The primary factorisation
+// is on (ARCH,OS) pairs ("PLATforms") but ARCH_ and OS_ macros are defined
+// too, since they are sometimes convenient.
+//
+// Note: "GP" is short for "Gecko Profiler".
+
+#undef GP_PLAT_x86_android
+#undef GP_PLAT_amd64_android
+#undef GP_PLAT_arm_android
+#undef GP_PLAT_arm64_android
+#undef GP_PLAT_x86_linux
+#undef GP_PLAT_amd64_linux
+#undef GP_PLAT_arm_linux
+#undef GP_PLAT_mips64_linux
+#undef GP_PLAT_amd64_darwin
+#undef GP_PLAT_arm64_darwin
+#undef GP_PLAT_x86_windows
+#undef GP_PLAT_amd64_windows
+#undef GP_PLAT_arm64_windows
+
+#undef GP_ARCH_x86
+#undef GP_ARCH_amd64
+#undef GP_ARCH_arm
+#undef GP_ARCH_arm64
+#undef GP_ARCH_mips64
+
+#undef GP_OS_android
+#undef GP_OS_linux
+#undef GP_OS_darwin
+#undef GP_OS_windows
+
+// We test __ANDROID__ before __linux__ because __linux__ is defined on both
+// Android and Linux, whereas GP_OS_android is not defined on vanilla Linux.
+
+#if defined(__ANDROID__) && defined(__i386__)
+# define GP_PLAT_x86_android 1
+# define GP_ARCH_x86 1
+# define GP_OS_android 1
+
+#elif defined(__ANDROID__) && defined(__x86_64__)
+# define GP_PLAT_amd64_android 1
+# define GP_ARCH_amd64 1
+# define GP_OS_android 1
+
+#elif defined(__ANDROID__) && defined(__arm__)
+# define GP_PLAT_arm_android 1
+# define GP_ARCH_arm 1
+# define GP_OS_android 1
+
+#elif defined(__ANDROID__) && defined(__aarch64__)
+# define GP_PLAT_arm64_android 1
+# define GP_ARCH_arm64 1
+# define GP_OS_android 1
+
+#elif defined(__linux__) && defined(__i386__)
+# define GP_PLAT_x86_linux 1
+# define GP_ARCH_x86 1
+# define GP_OS_linux 1
+
+#elif defined(__linux__) && defined(__x86_64__)
+# define GP_PLAT_amd64_linux 1
+# define GP_ARCH_amd64 1
+# define GP_OS_linux 1
+
+#elif defined(__linux__) && defined(__arm__)
+# define GP_PLAT_arm_linux 1
+# define GP_ARCH_arm 1
+# define GP_OS_linux 1
+
+#elif defined(__linux__) && defined(__aarch64__)
+# define GP_PLAT_arm64_linux 1
+# define GP_ARCH_arm64 1
+# define GP_OS_linux 1
+
+#elif defined(__linux__) && defined(__mips64)
+# define GP_PLAT_mips64_linux 1
+# define GP_ARCH_mips64 1
+# define GP_OS_linux 1
+
+#elif defined(__APPLE__) && defined(__aarch64__)
+# define GP_PLAT_arm64_darwin 1
+# define GP_ARCH_arm64 1
+# define GP_OS_darwin 1
+
+#elif defined(__APPLE__) && defined(__x86_64__)
+# define GP_PLAT_amd64_darwin 1
+# define GP_ARCH_amd64 1
+# define GP_OS_darwin 1
+
+#elif defined(__FreeBSD__) && defined(__x86_64__)
+# define GP_PLAT_amd64_freebsd 1
+# define GP_ARCH_amd64 1
+# define GP_OS_freebsd 1
+
+#elif defined(__FreeBSD__) && defined(__aarch64__)
+# define GP_PLAT_arm64_freebsd 1
+# define GP_ARCH_arm64 1
+# define GP_OS_freebsd 1
+
+#elif (defined(_MSC_VER) || defined(__MINGW32__)) && \
+ (defined(_M_IX86) || defined(__i386__))
+# define GP_PLAT_x86_windows 1
+# define GP_ARCH_x86 1
+# define GP_OS_windows 1
+
+#elif (defined(_MSC_VER) || defined(__MINGW32__)) && \
+ (defined(_M_X64) || defined(__x86_64__))
+# define GP_PLAT_amd64_windows 1
+# define GP_ARCH_amd64 1
+# define GP_OS_windows 1
+
+#elif defined(_MSC_VER) && defined(_M_ARM64)
+# define GP_PLAT_arm64_windows 1
+# define GP_ARCH_arm64 1
+# define GP_OS_windows 1
+
+#else
+# error "Unsupported platform"
+#endif
+
+#endif /* ndef PLATFORM_MACROS_H */
diff --git a/tools/profiler/core/PowerCounters-linux.cpp b/tools/profiler/core/PowerCounters-linux.cpp
new file mode 100644
index 0000000000..006cea4867
--- /dev/null
+++ b/tools/profiler/core/PowerCounters-linux.cpp
@@ -0,0 +1,287 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PowerCounters.h"
+#include "nsXULAppAPI.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/Logging.h"
+
+#include <sys/syscall.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <cerrno>
+#include <cinttypes>
+#include <cstdio>
+#include <cstdlib>
+#include <fstream>
+#include <string>
+
+#include <linux/perf_event.h>
+
+// From the kernel rapl_scale() function:
+//
+// > users must then scale back: count * 1/(1e9*2^32) to get Joules
+#define PERF_EVENT_SCALE_NANOJOULES 2.3283064365386962890625e-1
+#define SCALE_NANOJOULES_TO_PICOWATTHOUR 3.6
+#define SYSFS_PERF_POWER_TYPE_PATH "/sys/bus/event_source/devices/power/type"
+
+static mozilla::LazyLogModule sRaplEventLog("profiler.rapl");
+#define RAPL_LOG(...) \
+ MOZ_LOG(sRaplEventLog, mozilla::LogLevel::Debug, (__VA_ARGS__));
+
+enum class RaplEventType : uint64_t {
+ RAPL_ENERGY_CORES = 0x01,
+ RAPL_ENERGY_PKG = 0x02,
+ RAPL_ENERGY_DRAM = 0x03,
+ RAPL_ENERGY_GPU = 0x04,
+ RAPL_ENERGY_PSYS = 0x05,
+};
+
+struct RaplDomain {
+ RaplEventType mRaplEventType;
+ const char* mLabel;
+ const char* mDescription;
+};
+
+constexpr RaplDomain kSupportedRaplDomains[] = {
+ {RaplEventType::RAPL_ENERGY_CORES, "Power: CPU cores",
+ "Consumption of all physical cores"},
+ {
+ RaplEventType::RAPL_ENERGY_PKG,
+ "Power: CPU package",
+ "Consumption of the whole processor package",
+ },
+ {
+ RaplEventType::RAPL_ENERGY_DRAM,
+ "Power: DRAM",
+ "Consumption of the dram domain",
+ },
+ {
+ RaplEventType::RAPL_ENERGY_GPU,
+ "Power: iGPU",
+ "Consumption of the builtin-gpu domain",
+ },
+ {
+ RaplEventType::RAPL_ENERGY_PSYS,
+ "Power: System",
+ "Consumption of the builtin-psys domain",
+ }};
+
+static std::string GetSysfsFileID(RaplEventType aEventType) {
+ switch (aEventType) {
+ case RaplEventType::RAPL_ENERGY_CORES:
+ return "cores";
+ case RaplEventType::RAPL_ENERGY_PKG:
+ return "pkg";
+ case RaplEventType::RAPL_ENERGY_DRAM:
+ return "ram";
+ case RaplEventType::RAPL_ENERGY_GPU:
+ return "gpu";
+ case RaplEventType::RAPL_ENERGY_PSYS:
+ return "psys";
+ }
+
+ return "";
+}
+
+static double GetRaplPerfEventScale(RaplEventType aEventType) {
+ const std::string sysfsFileName =
+ "/sys/bus/event_source/devices/power/events/energy-" +
+ GetSysfsFileID(aEventType) + ".scale";
+ std::ifstream sysfsFile(sysfsFileName);
+
+ if (!sysfsFile) {
+ return PERF_EVENT_SCALE_NANOJOULES;
+ }
+
+ double scale;
+
+ if (sysfsFile >> scale) {
+ RAPL_LOG("Read scale from %s: %.22e", sysfsFileName.c_str(), scale);
+ return scale * 1e9;
+ }
+
+ return PERF_EVENT_SCALE_NANOJOULES;
+}
+
+static uint64_t GetRaplPerfEventConfig(RaplEventType aEventType) {
+ const std::string sysfsFileName =
+ "/sys/bus/event_source/devices/power/events/energy-" +
+ GetSysfsFileID(aEventType);
+ std::ifstream sysfsFile(sysfsFileName);
+
+ if (!sysfsFile) {
+ return static_cast<uint64_t>(aEventType);
+ }
+
+ char buffer[7] = {};
+ const std::string key = "event=";
+
+ if (!sysfsFile.get(buffer, static_cast<std::streamsize>(key.length()) + 1) ||
+ key != buffer) {
+ return static_cast<uint64_t>(aEventType);
+ }
+
+ uint64_t config;
+
+ if (sysfsFile >> std::hex >> config) {
+ RAPL_LOG("Read config from %s: 0x%" PRIx64, sysfsFileName.c_str(), config);
+ return config;
+ }
+
+ return static_cast<uint64_t>(aEventType);
+}
+
+class RaplProfilerCount final : public BaseProfilerCount {
+ public:
+ explicit RaplProfilerCount(int aPerfEventType,
+ const RaplEventType& aPerfEventConfig,
+ const char* aLabel, const char* aDescription)
+ : BaseProfilerCount(aLabel, nullptr, nullptr, "power", aDescription),
+ mLastResult(0),
+ mPerfEventFd(-1) {
+ RAPL_LOG("Creating RAPL Event for type: %s", mLabel);
+
+ // Optimize for ease of use and do not set an excludes value. This
+ // ensures we do not require PERF_PMU_CAP_NO_EXCLUDE.
+ struct perf_event_attr attr = {0};
+ memset(&attr, 0, sizeof(attr));
+ attr.type = aPerfEventType;
+ attr.size = sizeof(struct perf_event_attr);
+ attr.config = GetRaplPerfEventConfig(aPerfEventConfig);
+ attr.sample_period = 0;
+ attr.sample_type = PERF_SAMPLE_IDENTIFIER;
+ attr.inherit = 1;
+
+ RAPL_LOG("Config for event %s: 0x%llx", mLabel, attr.config);
+
+ mEventScale = GetRaplPerfEventScale(aPerfEventConfig);
+ RAPL_LOG("Scale for event %s: %.22e", mLabel, mEventScale);
+
+ long fd = syscall(__NR_perf_event_open, &attr, -1, 0, -1, 0);
+ if (fd < 0) {
+ RAPL_LOG("Event descriptor creation failed for event: %s", mLabel);
+ mPerfEventFd = -1;
+ return;
+ }
+
+ RAPL_LOG("Created descriptor for event: %s", mLabel)
+ mPerfEventFd = static_cast<int>(fd);
+ }
+
+ ~RaplProfilerCount() {
+ if (ValidPerfEventFd()) {
+ ioctl(mPerfEventFd, PERF_EVENT_IOC_DISABLE, 0);
+ close(mPerfEventFd);
+ }
+ }
+
+ RaplProfilerCount(const RaplProfilerCount&) = delete;
+ RaplProfilerCount& operator=(const RaplProfilerCount&) = delete;
+
+ CountSample Sample() override {
+ CountSample result = {
+ .count = 0,
+ .number = 0,
+ .isSampleNew = false,
+ };
+ mozilla::Maybe<uint64_t> raplEventResult = ReadEventFd();
+
+ if (raplEventResult.isNothing()) {
+ return result;
+ }
+
+ // We need to return picowatthour to be consistent with the Windows
+ // EMI API. As a result, the scale calculation should:
+ //
+ // - Convert the returned value to nanojoules
+ // - Convert nanojoules to picowatthour
+ double nanojoules =
+ static_cast<double>(raplEventResult.value()) * mEventScale;
+ double picowatthours = nanojoules / SCALE_NANOJOULES_TO_PICOWATTHOUR;
+ RAPL_LOG("Sample %s { count: %lu, last-result: %lu } = %lfJ", mLabel,
+ raplEventResult.value(), mLastResult, nanojoules * 1e-9);
+
+ result.count = static_cast<int64_t>(picowatthours);
+
+ // If the tick count is the same as the returned value or if this is the
+ // first sample, treat this sample as a duplicate.
+ result.isSampleNew =
+ (mLastResult != 0 && mLastResult != raplEventResult.value() &&
+ result.count >= 0);
+ mLastResult = raplEventResult.value();
+
+ return result;
+ }
+
+ bool ValidPerfEventFd() { return mPerfEventFd >= 0; }
+
+ private:
+ mozilla::Maybe<uint64_t> ReadEventFd() {
+ MOZ_ASSERT(ValidPerfEventFd());
+
+ uint64_t eventResult;
+ ssize_t readBytes = read(mPerfEventFd, &eventResult, sizeof(uint64_t));
+ if (readBytes != sizeof(uint64_t)) {
+ RAPL_LOG("Invalid RAPL event read size: %ld", readBytes);
+ return mozilla::Nothing();
+ }
+
+ return mozilla::Some(eventResult);
+ }
+
+ uint64_t mLastResult;
+ int mPerfEventFd;
+ double mEventScale;
+};
+
+static int GetRaplPerfEventType() {
+ FILE* fp = fopen(SYSFS_PERF_POWER_TYPE_PATH, "r");
+ if (!fp) {
+ RAPL_LOG("Open of " SYSFS_PERF_POWER_TYPE_PATH " failed");
+ return -1;
+ }
+
+ int readTypeValue = -1;
+ if (fscanf(fp, "%d", &readTypeValue) != 1) {
+ RAPL_LOG("Read of " SYSFS_PERF_POWER_TYPE_PATH " failed");
+ }
+ fclose(fp);
+
+ return readTypeValue;
+}
+
+PowerCounters::PowerCounters() {
+ if (!XRE_IsParentProcess()) {
+ // Energy meters are global, so only sample them on the parent.
+ return;
+ }
+
+ // Get the value perf_event_attr.type should be set to for RAPL
+ // perf events.
+ int perfEventType = GetRaplPerfEventType();
+ if (perfEventType < 0) {
+ RAPL_LOG("Failed to find the event type for RAPL perf events.");
+ return;
+ }
+
+ for (const auto& raplEventDomain : kSupportedRaplDomains) {
+ RaplProfilerCount* raplEvent = new RaplProfilerCount(
+ perfEventType, raplEventDomain.mRaplEventType, raplEventDomain.mLabel,
+ raplEventDomain.mDescription);
+ if (!raplEvent->ValidPerfEventFd() || !mCounters.emplaceBack(raplEvent)) {
+ delete raplEvent;
+ }
+ }
+}
+
+PowerCounters::~PowerCounters() {
+ for (auto* raplEvent : mCounters) {
+ delete raplEvent;
+ }
+ mCounters.clear();
+}
+
+void PowerCounters::Sample() {}
diff --git a/tools/profiler/core/PowerCounters-mac-amd64.cpp b/tools/profiler/core/PowerCounters-mac-amd64.cpp
new file mode 100644
index 0000000000..540cee155d
--- /dev/null
+++ b/tools/profiler/core/PowerCounters-mac-amd64.cpp
@@ -0,0 +1,419 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PowerCounters.h"
+#include "nsDebug.h"
+#include "nsPrintfCString.h"
+#include "nsXULAppAPI.h" // for XRE_IsParentProcess
+
+// Because of the pkg_energy_statistics_t::pkes_version check below, the
+// earliest OS X version this code will work with is 10.9.0 (xnu-2422.1.72).
+
+#include <sys/types.h>
+#include <sys/sysctl.h>
+
+// OS X has four kinds of system calls:
+//
+// 1. Mach traps;
+// 2. UNIX system calls;
+// 3. machine-dependent calls;
+// 4. diagnostic calls.
+//
+// (See "Mac OS X and iOS Internals" by Jonathan Levin for more details.)
+//
+// The last category has a single call named diagCall() or diagCall64(). Its
+// mode is controlled by its first argument, and one of the modes allows access
+// to the Intel RAPL MSRs.
+//
+// The interface to diagCall64() is not exported, so we have to import some
+// definitions from the XNU kernel. All imported definitions are annotated with
+// the XNU source file they come from, and information about what XNU versions
+// they were introduced in and (if relevant) modified.
+
+// The diagCall64() mode.
+// From osfmk/i386/Diagnostics.h
+// - In 10.8.4 (xnu-2050.24.15) this value was introduced. (In 10.8.3 the value
+// 17 was used for dgGzallocTest.)
+#define dgPowerStat 17
+
+// From osfmk/i386/cpu_data.h
+// - In 10.8.5 these values were introduced, along with core_energy_stat_t.
+#define CPU_RTIME_BINS (12)
+#define CPU_ITIME_BINS (CPU_RTIME_BINS)
+
+// core_energy_stat_t and pkg_energy_statistics_t are both from
+// osfmk/i386/Diagnostics.c.
+// - In 10.8.4 (xnu-2050.24.15) both structs were introduced, but with many
+// fewer fields.
+// - In 10.8.5 (xnu-2050.48.11) both structs were substantially expanded, with
+// numerous new fields.
+// - In 10.9.0 (xnu-2422.1.72) pkg_energy_statistics_t::pkes_version was added.
+// diagCall64(dgPowerStat) fills it with '1' in all versions since (up to
+// 10.10.2 at time of writing).
+// - in 10.10.2 (xnu-2782.10.72) core_energy_stat_t::gpmcs was conditionally
+// added, if DIAG_ALL_PMCS is true. (DIAG_ALL_PMCS is not even defined in the
+// source code, but it could be defined at compile-time via compiler flags.)
+// pkg_energy_statistics_t::pkes_version did not change, though.
+
+typedef struct {
+ uint64_t caperf;
+ uint64_t cmperf;
+ uint64_t ccres[6];
+ uint64_t crtimes[CPU_RTIME_BINS];
+ uint64_t citimes[CPU_ITIME_BINS];
+ uint64_t crtime_total;
+ uint64_t citime_total;
+ uint64_t cpu_idle_exits;
+ uint64_t cpu_insns;
+ uint64_t cpu_ucc;
+ uint64_t cpu_urc;
+#if DIAG_ALL_PMCS // Added in 10.10.2 (xnu-2782.10.72).
+ uint64_t gpmcs[4]; // Added in 10.10.2 (xnu-2782.10.72).
+#endif /* DIAG_ALL_PMCS */ // Added in 10.10.2 (xnu-2782.10.72).
+} core_energy_stat_t;
+
+typedef struct {
+ uint64_t pkes_version; // Added in 10.9.0 (xnu-2422.1.72).
+ uint64_t pkg_cres[2][7];
+
+ // This is read from MSR 0x606, which Intel calls MSR_RAPL_POWER_UNIT
+ // and XNU calls MSR_IA32_PKG_POWER_SKU_UNIT.
+ uint64_t pkg_power_unit;
+
+ // These are the four fields for the four RAPL domains. For each field
+ // we list:
+ //
+ // - the corresponding MSR number;
+ // - Intel's name for that MSR;
+ // - XNU's name for that MSR;
+ // - which Intel processors the MSR is supported on.
+ //
+ // The last of these is determined from chapter 35 of Volume 3 of the
+ // "Intel 64 and IA-32 Architecture's Software Developer's Manual",
+ // Order Number 325384. (Note that chapter 35 contradicts section 14.9
+ // to some degree.)
+
+ // 0x611 == MSR_PKG_ENERGY_STATUS == MSR_IA32_PKG_ENERGY_STATUS
+ // Atom (various), Sandy Bridge, Next Gen Xeon Phi (model 0x57).
+ uint64_t pkg_energy;
+
+ // 0x639 == MSR_PP0_ENERGY_STATUS == MSR_IA32_PP0_ENERGY_STATUS
+ // Atom (various), Sandy Bridge, Next Gen Xeon Phi (model 0x57).
+ uint64_t pp0_energy;
+
+ // 0x641 == MSR_PP1_ENERGY_STATUS == MSR_PP1_ENERGY_STATUS
+ // Sandy Bridge, Haswell.
+ uint64_t pp1_energy;
+
+ // 0x619 == MSR_DRAM_ENERGY_STATUS == MSR_IA32_DDR_ENERGY_STATUS
+ // Xeon E5, Xeon E5 v2, Haswell/Haswell-E, Next Gen Xeon Phi (model
+ // 0x57)
+ uint64_t ddr_energy;
+
+ uint64_t llc_flushed_cycles;
+ uint64_t ring_ratio_instantaneous;
+ uint64_t IA_frequency_clipping_cause;
+ uint64_t GT_frequency_clipping_cause;
+ uint64_t pkg_idle_exits;
+ uint64_t pkg_rtimes[CPU_RTIME_BINS];
+ uint64_t pkg_itimes[CPU_ITIME_BINS];
+ uint64_t mbus_delay_time;
+ uint64_t mint_delay_time;
+ uint32_t ncpus;
+ core_energy_stat_t cest[];
+} pkg_energy_statistics_t;
+
+static int diagCall64(uint64_t aMode, void* aBuf) {
+ // We cannot use syscall() here because it doesn't work with diagnostic
+ // system calls -- it raises SIGSYS if you try. So we have to use asm.
+
+#ifdef __x86_64__
+ // The 0x40000 prefix indicates it's a diagnostic system call. The 0x01
+ // suffix indicates the syscall number is 1, which also happens to be the
+ // only diagnostic system call. See osfmk/mach/i386/syscall_sw.h for more
+ // details.
+ static const uint64_t diagCallNum = 0x4000001;
+ uint64_t rv;
+
+ __asm__ __volatile__(
+ "syscall"
+
+ // Return value goes in "a" (%rax).
+ : /* outputs */ "=a"(rv)
+
+ // The syscall number goes in "0", a synonym (from outputs) for "a"
+ // (%rax). The syscall arguments go in "D" (%rdi) and "S" (%rsi).
+ : /* inputs */ "0"(diagCallNum), "D"(aMode), "S"(aBuf)
+
+ // The |syscall| instruction clobbers %rcx, %r11, and %rflags ("cc"). And
+ // this particular syscall also writes memory (aBuf).
+ : /* clobbers */ "rcx", "r11", "cc", "memory");
+ return rv;
+#else
+# error Sorry, only x86-64 is supported
+#endif
+}
+
+// This is a counter to collect power utilization during profiling.
+// It cannot be a raw `ProfilerCounter` because we need to manually add/remove
+// it while the profiler lock is already held.
+class RaplDomain final : public BaseProfilerCount {
+ public:
+ explicit RaplDomain(const char* aLabel, const char* aDescription)
+ : BaseProfilerCount(aLabel, nullptr, nullptr, "power", aDescription),
+ mSample(0),
+ mEnergyStatusUnits(0),
+ mWrapAroundCount(0),
+ mIsSampleNew(false) {}
+
+ CountSample Sample() override {
+ CountSample result;
+
+ // To be consistent with the Windows EMI API,
+ // return values in picowatt-hour.
+ constexpr double NANOJOULES_PER_JOULE = 1'000'000'000;
+ constexpr double NANOJOULES_TO_PICOWATTHOUR = 3.6;
+
+ uint64_t ticks = (uint64_t(mWrapAroundCount) << 32) + mSample;
+ double joulesPerTick = (double)1 / (1 << mEnergyStatusUnits);
+ result.count = static_cast<double>(ticks) * joulesPerTick *
+ NANOJOULES_PER_JOULE / NANOJOULES_TO_PICOWATTHOUR;
+
+ result.number = 0;
+ result.isSampleNew = mIsSampleNew;
+ mIsSampleNew = false;
+ return result;
+ }
+
+ void AddSample(uint32_t aSample, uint32_t aEnergyStatusUnits) {
+ if (aSample == mSample) {
+ return;
+ }
+
+ mEnergyStatusUnits = aEnergyStatusUnits;
+
+ if (aSample > mSample) {
+ mIsSampleNew = true;
+ mSample = aSample;
+ return;
+ }
+
+ // Despite being returned in uint64_t fields, the power counter values
+ // only use the lowest 32 bits of their fields, and we need to handle
+ // wraparounds to avoid our power tracks stopping after a few hours.
+ constexpr uint32_t highestBit = 1 << 31;
+ if ((mSample & highestBit) && !(aSample & highestBit)) {
+ mIsSampleNew = true;
+ ++mWrapAroundCount;
+ mSample = aSample;
+ } else {
+ NS_WARNING("unexpected sample with smaller value");
+ }
+ }
+
+ private:
+ uint32_t mSample;
+ uint32_t mEnergyStatusUnits;
+ uint32_t mWrapAroundCount;
+ bool mIsSampleNew;
+};
+
+class RAPL {
+ bool mIsGpuSupported; // Is the GPU domain supported by the processor?
+ bool mIsRamSupported; // Is the RAM domain supported by the processor?
+
+ // The DRAM domain on Haswell servers has a fixed energy unit (1/65536 J ==
+ // 15.3 microJoules) which is different to the power unit MSR. (See the
+ // "Intel Xeon Processor E5-1600 and E5-2600 v3 Product Families, Volume 2 of
+ // 2, Registers" datasheet, September 2014, Reference Number: 330784-001.)
+ // This field records whether the quirk is present.
+ bool mHasRamUnitsQuirk;
+
+ // The abovementioned 15.3 microJoules value. (2^16 = 65536)
+ static constexpr double kQuirkyRamEnergyStatusUnits = 16;
+
+ // The struct passed to diagCall64().
+ pkg_energy_statistics_t* mPkes;
+
+ RaplDomain* mPkg = nullptr;
+ RaplDomain* mCores = nullptr;
+ RaplDomain* mGpu = nullptr;
+ RaplDomain* mRam = nullptr;
+
+ public:
+ explicit RAPL(PowerCounters::CountVector& aCounters)
+ : mHasRamUnitsQuirk(false) {
+ // Work out which RAPL MSRs this CPU model supports.
+ int cpuModel;
+ size_t size = sizeof(cpuModel);
+ if (sysctlbyname("machdep.cpu.model", &cpuModel, &size, NULL, 0) != 0) {
+ NS_WARNING("sysctlbyname(\"machdep.cpu.model\") failed");
+ return;
+ }
+
+ // This is similar to arch/x86/kernel/cpu/perf_event_intel_rapl.c in
+ // linux-4.1.5/.
+ //
+ // By linux-5.6.14/, this stuff had moved into
+ // arch/x86/events/intel/rapl.c, which references processor families in
+ // arch/x86/include/asm/intel-family.h.
+ switch (cpuModel) {
+ case 0x2a: // Sandy Bridge
+ case 0x3a: // Ivy Bridge
+ // Supports package, cores, GPU.
+ mIsGpuSupported = true;
+ mIsRamSupported = false;
+ break;
+
+ case 0x3f: // Haswell X
+ case 0x4f: // Broadwell X
+ case 0x55: // Skylake X
+ case 0x56: // Broadwell D
+ // Supports package, cores, RAM. Has the units quirk.
+ mIsGpuSupported = false;
+ mIsRamSupported = true;
+ mHasRamUnitsQuirk = true;
+ break;
+
+ case 0x2d: // Sandy Bridge X
+ case 0x3e: // Ivy Bridge X
+ // Supports package, cores, RAM.
+ mIsGpuSupported = false;
+ mIsRamSupported = true;
+ break;
+
+ case 0x3c: // Haswell
+ case 0x3d: // Broadwell
+ case 0x45: // Haswell L
+ case 0x46: // Haswell G
+ case 0x47: // Broadwell G
+ // Supports package, cores, GPU, RAM.
+ mIsGpuSupported = true;
+ mIsRamSupported = true;
+ break;
+
+ case 0x4e: // Skylake L
+ case 0x5e: // Skylake
+ case 0x8e: // Kaby Lake L
+ case 0x9e: // Kaby Lake
+ case 0x66: // Cannon Lake L
+ case 0x7d: // Ice Lake
+ case 0x7e: // Ice Lake L
+ case 0xa5: // Comet Lake
+ case 0xa6: // Comet Lake L
+ // Supports package, cores, GPU, RAM, PSYS.
+ // XXX: this tool currently doesn't measure PSYS.
+ mIsGpuSupported = true;
+ mIsRamSupported = true;
+ break;
+
+ default:
+ NS_WARNING(nsPrintfCString("unknown CPU model: %d", cpuModel).get());
+ return;
+ }
+
+ // Get the maximum number of logical CPUs so that we know how big to make
+ // |mPkes|.
+ int logicalcpu_max;
+ size = sizeof(logicalcpu_max);
+ if (sysctlbyname("hw.logicalcpu_max", &logicalcpu_max, &size, NULL, 0) !=
+ 0) {
+ NS_WARNING("sysctlbyname(\"hw.logicalcpu_max\") failed");
+ return;
+ }
+
+ // Over-allocate by 1024 bytes per CPU to allow for the uncertainty around
+ // core_energy_stat_t::gpmcs and for any other future extensions to that
+ // struct. (The fields we read all come before the core_energy_stat_t
+ // array, so it won't matter to us whether gpmcs is present or not.)
+ size_t pkesSize = sizeof(pkg_energy_statistics_t) +
+ logicalcpu_max * sizeof(core_energy_stat_t) +
+ logicalcpu_max * 1024;
+ mPkes = (pkg_energy_statistics_t*)malloc(pkesSize);
+ if (mPkes && aCounters.reserve(4)) {
+ mPkg = new RaplDomain("Power: CPU package", "RAPL PKG");
+ aCounters.infallibleAppend(mPkg);
+
+ mCores = new RaplDomain("Power: CPU cores", "RAPL PP0");
+ aCounters.infallibleAppend(mCores);
+
+ if (mIsGpuSupported) {
+ mGpu = new RaplDomain("Power: iGPU", "RAPL PP1");
+ aCounters.infallibleAppend(mGpu);
+ }
+
+ if (mIsRamSupported) {
+ mRam = new RaplDomain("Power: DRAM", "RAPL DRAM");
+ aCounters.infallibleAppend(mRam);
+ }
+ }
+ }
+
+ ~RAPL() {
+ free(mPkes);
+ delete mPkg;
+ delete mCores;
+ delete mGpu;
+ delete mRam;
+ }
+
+ void Sample() {
+ constexpr uint64_t kSupportedVersion = 1;
+
+ // If we failed to allocate the memory for package energy statistics, we
+ // have nothing to sample.
+ if (MOZ_UNLIKELY(!mPkes)) {
+ return;
+ }
+
+ // Write an unsupported version number into pkes_version so that the check
+ // below cannot succeed by dumb luck.
+ mPkes->pkes_version = kSupportedVersion - 1;
+
+ // diagCall64() returns 1 on success, and 0 on failure (which can only
+ // happen if the mode is unrecognized, e.g. in 10.7.x or earlier versions).
+ if (diagCall64(dgPowerStat, mPkes) != 1) {
+ NS_WARNING("diagCall64() failed");
+ return;
+ }
+
+ if (mPkes->pkes_version != kSupportedVersion) {
+ NS_WARNING(
+ nsPrintfCString("unexpected pkes_version: %llu", mPkes->pkes_version)
+ .get());
+ return;
+ }
+
+ // Bits 12:8 are the ESU.
+ // Energy measurements come in multiples of 1/(2^ESU).
+ uint32_t energyStatusUnits = (mPkes->pkg_power_unit >> 8) & 0x1f;
+ mPkg->AddSample(mPkes->pkg_energy, energyStatusUnits);
+ mCores->AddSample(mPkes->pp0_energy, energyStatusUnits);
+ if (mIsGpuSupported) {
+ mGpu->AddSample(mPkes->pp1_energy, energyStatusUnits);
+ }
+ if (mIsRamSupported) {
+ mRam->AddSample(mPkes->ddr_energy, mHasRamUnitsQuirk
+ ? kQuirkyRamEnergyStatusUnits
+ : energyStatusUnits);
+ }
+ }
+};
+
+PowerCounters::PowerCounters() {
+ // RAPL values are global, so only sample them on the parent.
+ mRapl = XRE_IsParentProcess() ? new RAPL(mCounters) : nullptr;
+}
+
+PowerCounters::~PowerCounters() {
+ mCounters.clear();
+ delete mRapl;
+ mRapl = nullptr;
+}
+
+void PowerCounters::Sample() {
+ if (mRapl) {
+ mRapl->Sample();
+ }
+}
diff --git a/tools/profiler/core/PowerCounters-mac-arm64.cpp b/tools/profiler/core/PowerCounters-mac-arm64.cpp
new file mode 100644
index 0000000000..3a84a479ef
--- /dev/null
+++ b/tools/profiler/core/PowerCounters-mac-arm64.cpp
@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PowerCounters.h"
+
+#include <mach/mach.h>
+
+class ProcessPower final : public BaseProfilerCount {
+ public:
+ ProcessPower()
+ : BaseProfilerCount("Process Power", nullptr, nullptr, "power",
+ "Power utilization") {}
+
+ CountSample Sample() override {
+ CountSample result;
+ result.count = GetTaskEnergy();
+ result.number = 0;
+ result.isSampleNew = true;
+ return result;
+ }
+
+ private:
+ int64_t GetTaskEnergy() {
+ task_power_info_v2_data_t task_power_info;
+ mach_msg_type_number_t count = TASK_POWER_INFO_V2_COUNT;
+ kern_return_t kr = task_info(mach_task_self(), TASK_POWER_INFO_V2,
+ (task_info_t)&task_power_info, &count);
+ if (kr != KERN_SUCCESS) {
+ return 0;
+ }
+
+ // task_energy is in nanojoules. To be consistent with the Windows EMI
+ // API, return values in picowatt-hour.
+ return task_power_info.task_energy / 3.6;
+ }
+};
+
+PowerCounters::PowerCounters() : mProcessPower(new ProcessPower()) {
+ if (mProcessPower) {
+ (void)mCounters.append(mProcessPower.get());
+ }
+}
+
+PowerCounters::~PowerCounters() { mCounters.clear(); }
+
+void PowerCounters::Sample() {}
diff --git a/tools/profiler/core/PowerCounters-win.cpp b/tools/profiler/core/PowerCounters-win.cpp
new file mode 100644
index 0000000000..f1d05389b6
--- /dev/null
+++ b/tools/profiler/core/PowerCounters-win.cpp
@@ -0,0 +1,342 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PowerCounters.h"
+#include "nsXULAppAPI.h" // for XRE_IsParentProcess
+#include "nsString.h"
+
+#include <windows.h>
+#include <devioctl.h>
+#include <setupapi.h> // for SetupDi*
+// LogSeverity, defined by setupapi.h to DWORD, messes with other code.
+#undef LogSeverity
+
+#undef NTDDI_VERSION
+#define NTDDI_VERSION NTDDI_WINBLUE
+#include <emi.h>
+
+#ifndef NTDDI_WIN10_RS5
+// EMI v2 API exists in SDK 10.0.17763 (Windows 10 1809 / Redstone 5) and later.
+// Our build machines are still on SDK 10.0.17134.
+// Remove this block when updating the SDK (bug 1774628).
+typedef EMI_METADATA EMI_METADATA_V1;
+typedef EMI_MEASUREMENT_DATA EMI_CHANNEL_MEASUREMENT_DATA;
+# define EMI_VERSION_V2 2
+
+typedef struct {
+ EMI_MEASUREMENT_UNIT MeasurementUnit;
+ USHORT ChannelNameSize;
+ WCHAR ChannelName[ANYSIZE_ARRAY];
+} EMI_CHANNEL_V2;
+
+typedef struct {
+ WCHAR HardwareOEM[EMI_NAME_MAX];
+ WCHAR HardwareModel[EMI_NAME_MAX];
+ USHORT HardwareRevision;
+ USHORT ChannelCount;
+ EMI_CHANNEL_V2 Channels[ANYSIZE_ARRAY];
+} EMI_METADATA_V2;
+
+# define EMI_CHANNEL_V2_LENGTH(_ChannelNameSize) \
+ (FIELD_OFFSET(EMI_CHANNEL_V2, ChannelName) + (_ChannelNameSize))
+
+# define EMI_CHANNEL_V2_NEXT_CHANNEL(_Channel) \
+ ((EMI_CHANNEL_V2*)((PUCHAR)(_Channel) + \
+ EMI_CHANNEL_V2_LENGTH((_Channel)->ChannelNameSize)))
+#endif
+
+using namespace mozilla;
+
+// This is a counter to collect power utilization during profiling.
+// It cannot be a raw `ProfilerCounter` because we need to manually add/remove
+// it while the profiler lock is already held.
+class PowerMeterChannel final : public BaseProfilerCount {
+ public:
+ explicit PowerMeterChannel(const WCHAR* aChannelName, ULONGLONG aInitialValue,
+ ULONGLONG aInitialTime)
+ : BaseProfilerCount(nullptr, nullptr, nullptr, "power",
+ "Power utilization"),
+ mChannelName(NS_ConvertUTF16toUTF8(aChannelName)),
+ mPreviousValue(aInitialValue),
+ mPreviousTime(aInitialTime),
+ mIsSampleNew(true) {
+ if (mChannelName.Equals("RAPL_Package0_PKG")) {
+ mLabel = "Power: CPU package";
+ mDescription = mChannelName.get();
+ } else if (mChannelName.Equals("RAPL_Package0_PP0")) {
+ mLabel = "Power: CPU cores";
+ mDescription = mChannelName.get();
+ } else if (mChannelName.Equals("RAPL_Package0_PP1")) {
+ mLabel = "Power: iGPU";
+ mDescription = mChannelName.get();
+ } else if (mChannelName.Equals("RAPL_Package0_DRAM")) {
+ mLabel = "Power: DRAM";
+ mDescription = mChannelName.get();
+ } else {
+ unsigned int coreId;
+ if (sscanf(mChannelName.get(), "RAPL_Package0_Core%u_CORE", &coreId) ==
+ 1) {
+ mLabelString = "Power: CPU core ";
+ mLabelString.AppendInt(coreId);
+ mLabel = mLabelString.get();
+ mDescription = mChannelName.get();
+ } else {
+ mLabel = mChannelName.get();
+ }
+ }
+ }
+
+ CountSample Sample() override {
+ CountSample result;
+ result.count = mCounter;
+ result.number = 0;
+ result.isSampleNew = mIsSampleNew;
+ mIsSampleNew = false;
+ return result;
+ }
+
+ void AddSample(ULONGLONG aAbsoluteEnergy, ULONGLONG aAbsoluteTime) {
+ // aAbsoluteTime is the time since the system start in 100ns increments.
+ if (aAbsoluteTime == mPreviousTime) {
+ return;
+ }
+
+ if (aAbsoluteEnergy > mPreviousValue) {
+ int64_t increment = aAbsoluteEnergy - mPreviousValue;
+ mCounter += increment;
+ mPreviousValue += increment;
+ mPreviousTime = aAbsoluteTime;
+ }
+
+ mIsSampleNew = true;
+ }
+
+ private:
+ int64_t mCounter;
+ nsCString mChannelName;
+
+ // Used as a storage when the label can not be a literal string.
+ nsCString mLabelString;
+
+ ULONGLONG mPreviousValue;
+ ULONGLONG mPreviousTime;
+ bool mIsSampleNew;
+};
+
+class PowerMeterDevice {
+ public:
+ explicit PowerMeterDevice(LPCTSTR aDevicePath) {
+ mHandle = ::CreateFile(aDevicePath, GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
+ if (mHandle == INVALID_HANDLE_VALUE) {
+ return;
+ }
+
+ EMI_VERSION version = {0};
+ DWORD dwOut;
+
+ if (!::DeviceIoControl(mHandle, IOCTL_EMI_GET_VERSION, nullptr, 0, &version,
+ sizeof(version), &dwOut, nullptr) ||
+ (version.EmiVersion != EMI_VERSION_V1 &&
+ version.EmiVersion != EMI_VERSION_V2)) {
+ return;
+ }
+
+ EMI_METADATA_SIZE size = {0};
+ if (!::DeviceIoControl(mHandle, IOCTL_EMI_GET_METADATA_SIZE, nullptr, 0,
+ &size, sizeof(size), &dwOut, nullptr) ||
+ !size.MetadataSize) {
+ return;
+ }
+
+ UniquePtr<uint8_t[]> metadata(new (std::nothrow)
+ uint8_t[size.MetadataSize]);
+ if (!metadata) {
+ return;
+ }
+
+ if (version.EmiVersion == EMI_VERSION_V2) {
+ EMI_METADATA_V2* metadata2 =
+ reinterpret_cast<EMI_METADATA_V2*>(metadata.get());
+ if (!::DeviceIoControl(mHandle, IOCTL_EMI_GET_METADATA, nullptr, 0,
+ metadata2, size.MetadataSize, &dwOut, nullptr)) {
+ return;
+ }
+
+ if (!mChannels.reserve(metadata2->ChannelCount)) {
+ return;
+ }
+
+ mDataBuffer =
+ MakeUnique<EMI_CHANNEL_MEASUREMENT_DATA[]>(metadata2->ChannelCount);
+ if (!mDataBuffer) {
+ return;
+ }
+
+ if (!::DeviceIoControl(
+ mHandle, IOCTL_EMI_GET_MEASUREMENT, nullptr, 0, mDataBuffer.get(),
+ sizeof(EMI_CHANNEL_MEASUREMENT_DATA[metadata2->ChannelCount]),
+ &dwOut, nullptr)) {
+ return;
+ }
+
+ EMI_CHANNEL_V2* channel = &metadata2->Channels[0];
+ for (int i = 0; i < metadata2->ChannelCount; ++i) {
+ EMI_CHANNEL_MEASUREMENT_DATA* channel_data = &mDataBuffer[i];
+ mChannels.infallibleAppend(new PowerMeterChannel(
+ channel->ChannelName, channel_data->AbsoluteEnergy,
+ channel_data->AbsoluteTime));
+ channel = EMI_CHANNEL_V2_NEXT_CHANNEL(channel);
+ }
+ } else if (version.EmiVersion == EMI_VERSION_V1) {
+ EMI_METADATA_V1* metadata1 =
+ reinterpret_cast<EMI_METADATA_V1*>(metadata.get());
+ if (!::DeviceIoControl(mHandle, IOCTL_EMI_GET_METADATA, nullptr, 0,
+ metadata1, size.MetadataSize, &dwOut, nullptr)) {
+ return;
+ }
+
+ mDataBuffer = MakeUnique<EMI_CHANNEL_MEASUREMENT_DATA[]>(1);
+ if (!mDataBuffer) {
+ return;
+ }
+
+ if (!::DeviceIoControl(
+ mHandle, IOCTL_EMI_GET_MEASUREMENT, nullptr, 0, mDataBuffer.get(),
+ sizeof(EMI_CHANNEL_MEASUREMENT_DATA), &dwOut, nullptr)) {
+ return;
+ }
+
+ (void)mChannels.append(new PowerMeterChannel(
+ metadata1->MeteredHardwareName, mDataBuffer[0].AbsoluteEnergy,
+ mDataBuffer[0].AbsoluteTime));
+ }
+ }
+
+ ~PowerMeterDevice() {
+ if (mHandle != INVALID_HANDLE_VALUE) {
+ ::CloseHandle(mHandle);
+ }
+ }
+
+ void Sample() {
+ MOZ_ASSERT(HasChannels());
+ MOZ_ASSERT(mDataBuffer);
+
+ DWORD dwOut;
+ if (!::DeviceIoControl(
+ mHandle, IOCTL_EMI_GET_MEASUREMENT, nullptr, 0, mDataBuffer.get(),
+ sizeof(EMI_CHANNEL_MEASUREMENT_DATA[mChannels.length()]), &dwOut,
+ nullptr)) {
+ return;
+ }
+
+ for (size_t i = 0; i < mChannels.length(); ++i) {
+ EMI_CHANNEL_MEASUREMENT_DATA* channel_data = &mDataBuffer[i];
+ mChannels[i]->AddSample(channel_data->AbsoluteEnergy,
+ channel_data->AbsoluteTime);
+ }
+ }
+
+ bool HasChannels() { return mChannels.length() != 0; }
+ void AppendCountersTo(PowerCounters::CountVector& aCounters) {
+ if (aCounters.reserve(aCounters.length() + mChannels.length())) {
+ for (auto& channel : mChannels) {
+ aCounters.infallibleAppend(channel.get());
+ }
+ }
+ }
+
+ private:
+ Vector<UniquePtr<PowerMeterChannel>, 4> mChannels;
+ HANDLE mHandle = INVALID_HANDLE_VALUE;
+ UniquePtr<EMI_CHANNEL_MEASUREMENT_DATA[]> mDataBuffer;
+};
+
+PowerCounters::PowerCounters() {
+ class MOZ_STACK_CLASS HDevInfoHolder final {
+ public:
+ explicit HDevInfoHolder(HDEVINFO aHandle) : mHandle(aHandle) {}
+
+ ~HDevInfoHolder() { ::SetupDiDestroyDeviceInfoList(mHandle); }
+
+ private:
+ HDEVINFO mHandle;
+ };
+
+ if (!XRE_IsParentProcess()) {
+ // Energy meters are global, so only sample them on the parent.
+ return;
+ }
+
+ // Energy Metering Device Interface
+ // {45BD8344-7ED6-49cf-A440-C276C933B053}
+ //
+ // Using GUID_DEVICE_ENERGY_METER does not compile as the symbol does not
+ // exist before Windows 10.
+ GUID my_GUID_DEVICE_ENERGY_METER = {
+ 0x45bd8344,
+ 0x7ed6,
+ 0x49cf,
+ {0xa4, 0x40, 0xc2, 0x76, 0xc9, 0x33, 0xb0, 0x53}};
+
+ HDEVINFO hdev =
+ ::SetupDiGetClassDevs(&my_GUID_DEVICE_ENERGY_METER, nullptr, nullptr,
+ DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
+ if (hdev == INVALID_HANDLE_VALUE) {
+ return;
+ }
+
+ HDevInfoHolder hdevHolder(hdev);
+
+ DWORD i = 0;
+ SP_DEVICE_INTERFACE_DATA did = {0};
+ did.cbSize = sizeof(did);
+
+ while (::SetupDiEnumDeviceInterfaces(
+ hdev, nullptr, &my_GUID_DEVICE_ENERGY_METER, i++, &did)) {
+ DWORD bufferSize = 0;
+ ::SetupDiGetDeviceInterfaceDetail(hdev, &did, nullptr, 0, &bufferSize,
+ nullptr);
+ if (::GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
+ continue;
+ }
+
+ UniquePtr<uint8_t[]> buffer(new (std::nothrow) uint8_t[bufferSize]);
+ if (!buffer) {
+ continue;
+ }
+
+ PSP_DEVICE_INTERFACE_DETAIL_DATA pdidd =
+ reinterpret_cast<PSP_DEVICE_INTERFACE_DETAIL_DATA>(buffer.get());
+ MOZ_ASSERT(uintptr_t(buffer.get()) %
+ alignof(PSP_DEVICE_INTERFACE_DETAIL_DATA) ==
+ 0);
+ pdidd->cbSize = sizeof(*pdidd);
+ if (!::SetupDiGetDeviceInterfaceDetail(hdev, &did, pdidd, bufferSize,
+ &bufferSize, nullptr)) {
+ continue;
+ }
+
+ UniquePtr<PowerMeterDevice> pmd =
+ MakeUnique<PowerMeterDevice>(pdidd->DevicePath);
+ if (!pmd->HasChannels() ||
+ !mPowerMeterDevices.emplaceBack(std::move(pmd))) {
+ NS_WARNING("PowerMeterDevice without measurement channel (or OOM)");
+ }
+ }
+
+ for (auto& device : mPowerMeterDevices) {
+ device->AppendCountersTo(mCounters);
+ }
+}
+
+PowerCounters::~PowerCounters() { mCounters.clear(); }
+
+void PowerCounters::Sample() {
+ for (auto& device : mPowerMeterDevices) {
+ device->Sample();
+ }
+}
diff --git a/tools/profiler/core/PowerCounters.h b/tools/profiler/core/PowerCounters.h
new file mode 100644
index 0000000000..2fd8d5892c
--- /dev/null
+++ b/tools/profiler/core/PowerCounters.h
@@ -0,0 +1,52 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef TOOLS_POWERCOUNTERS_H_
+#define TOOLS_POWERCOUNTERS_H_
+
+#include "PlatformMacros.h"
+#include "mozilla/ProfilerCounts.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Vector.h"
+
+#if defined(_MSC_VER)
+class PowerMeterDevice;
+#endif
+#if defined(GP_PLAT_arm64_darwin)
+class ProcessPower;
+#endif
+#if defined(GP_PLAT_amd64_darwin)
+class RAPL;
+#endif
+
+class PowerCounters {
+ public:
+#if defined(_MSC_VER) || defined(GP_OS_darwin) || defined(GP_PLAT_amd64_linux)
+ explicit PowerCounters();
+ ~PowerCounters();
+ void Sample();
+#else
+ explicit PowerCounters(){};
+ ~PowerCounters(){};
+ void Sample(){};
+#endif
+
+ using CountVector = mozilla::Vector<BaseProfilerCount*, 4>;
+ const CountVector& GetCounters() { return mCounters; }
+
+ private:
+ CountVector mCounters;
+
+#if defined(_MSC_VER)
+ mozilla::Vector<mozilla::UniquePtr<PowerMeterDevice>> mPowerMeterDevices;
+#endif
+#if defined(GP_PLAT_arm64_darwin)
+ mozilla::UniquePtr<ProcessPower> mProcessPower;
+#endif
+#if defined(GP_PLAT_amd64_darwin)
+ RAPL* mRapl;
+#endif
+};
+
+#endif /* ndef TOOLS_POWERCOUNTERS_H_ */
diff --git a/tools/profiler/core/ProfileAdditionalInformation.cpp b/tools/profiler/core/ProfileAdditionalInformation.cpp
new file mode 100644
index 0000000000..ba3cd80e7c
--- /dev/null
+++ b/tools/profiler/core/ProfileAdditionalInformation.cpp
@@ -0,0 +1,102 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ProfileAdditionalInformation.h"
+
+#include "jsapi.h"
+#include "js/JSON.h"
+#include "js/PropertyAndElement.h"
+#include "js/Value.h"
+#include "mozilla/JSONStringWriteFuncs.h"
+#include "mozilla/ipc/IPDLParamTraits.h"
+
+#ifdef MOZ_GECKO_PROFILER
+# include "platform.h"
+
+void mozilla::ProfileGenerationAdditionalInformation::ToJSValue(
+ JSContext* aCx, JS::MutableHandle<JS::Value> aRetVal) const {
+ // Get the shared libraries array.
+ JS::Rooted<JS::Value> sharedLibrariesVal(aCx);
+ {
+ JSONStringWriteFunc<nsCString> buffer;
+ JSONWriter w(buffer, JSONWriter::SingleLineStyle);
+ w.StartArrayElement();
+ AppendSharedLibraries(w, mSharedLibraries);
+ w.EndArray();
+ NS_ConvertUTF8toUTF16 buffer16(buffer.StringCRef());
+ MOZ_ALWAYS_TRUE(JS_ParseJSON(aCx,
+ static_cast<const char16_t*>(buffer16.get()),
+ buffer16.Length(), &sharedLibrariesVal));
+ }
+
+ JS::Rooted<JSObject*> additionalInfoObj(aCx, JS_NewPlainObject(aCx));
+ JS_SetProperty(aCx, additionalInfoObj, "sharedLibraries", sharedLibrariesVal);
+ aRetVal.setObject(*additionalInfoObj);
+}
+#endif // MOZ_GECKO_PROFILER
+
+namespace IPC {
+
+#ifdef MOZ_GECKO_PROFILER
+void IPC::ParamTraits<SharedLibrary>::Write(MessageWriter* aWriter,
+ const paramType& aParam) {
+ WriteParam(aWriter, aParam.mStart);
+ WriteParam(aWriter, aParam.mEnd);
+ WriteParam(aWriter, aParam.mOffset);
+ WriteParam(aWriter, aParam.mBreakpadId);
+ WriteParam(aWriter, aParam.mCodeId);
+ WriteParam(aWriter, aParam.mModuleName);
+ WriteParam(aWriter, aParam.mModulePath);
+ WriteParam(aWriter, aParam.mDebugName);
+ WriteParam(aWriter, aParam.mDebugPath);
+ WriteParam(aWriter, aParam.mVersion);
+ WriteParam(aWriter, aParam.mArch);
+}
+
+bool IPC::ParamTraits<SharedLibrary>::Read(MessageReader* aReader,
+ paramType* aResult) {
+ return ReadParam(aReader, &aResult->mStart) &&
+ ReadParam(aReader, &aResult->mEnd) &&
+ ReadParam(aReader, &aResult->mOffset) &&
+ ReadParam(aReader, &aResult->mBreakpadId) &&
+ ReadParam(aReader, &aResult->mCodeId) &&
+ ReadParam(aReader, &aResult->mModuleName) &&
+ ReadParam(aReader, &aResult->mModulePath) &&
+ ReadParam(aReader, &aResult->mDebugName) &&
+ ReadParam(aReader, &aResult->mDebugPath) &&
+ ReadParam(aReader, &aResult->mVersion) &&
+ ReadParam(aReader, &aResult->mArch);
+}
+
+void IPC::ParamTraits<SharedLibraryInfo>::Write(MessageWriter* aWriter,
+ const paramType& aParam) {
+ paramType& p = const_cast<paramType&>(aParam);
+ WriteParam(aWriter, p.mEntries);
+}
+
+bool IPC::ParamTraits<SharedLibraryInfo>::Read(MessageReader* aReader,
+ paramType* aResult) {
+ return ReadParam(aReader, &aResult->mEntries);
+}
+#endif // MOZ_GECKO_PROFILER
+
+void IPC::ParamTraits<mozilla::ProfileGenerationAdditionalInformation>::Write(
+ MessageWriter* aWriter, const paramType& aParam) {
+#ifdef MOZ_GECKO_PROFILER
+ WriteParam(aWriter, aParam.mSharedLibraries);
+#endif // MOZ_GECKO_PROFILER
+}
+
+bool IPC::ParamTraits<mozilla::ProfileGenerationAdditionalInformation>::Read(
+ MessageReader* aReader, paramType* aResult) {
+#ifdef MOZ_GECKO_PROFILER
+ return ReadParam(aReader, &aResult->mSharedLibraries);
+#else
+ return true;
+#endif // MOZ_GECKO_PROFILER
+}
+
+} // namespace IPC
diff --git a/tools/profiler/core/ProfileBuffer.cpp b/tools/profiler/core/ProfileBuffer.cpp
new file mode 100644
index 0000000000..170a4f14b4
--- /dev/null
+++ b/tools/profiler/core/ProfileBuffer.cpp
@@ -0,0 +1,243 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ProfileBuffer.h"
+
+#include "BaseProfiler.h"
+#include "js/GCAPI.h"
+#include "jsfriendapi.h"
+#include "mozilla/MathAlgorithms.h"
+#include "nsJSPrincipals.h"
+#include "nsScriptSecurityManager.h"
+
+using namespace mozilla;
+
+ProfileBuffer::ProfileBuffer(ProfileChunkedBuffer& aBuffer)
+ : mEntries(aBuffer) {
+ // Assume the given buffer is in-session.
+ MOZ_ASSERT(mEntries.IsInSession());
+}
+
+/* static */
+ProfileBufferBlockIndex ProfileBuffer::AddEntry(
+ ProfileChunkedBuffer& aProfileChunkedBuffer,
+ const ProfileBufferEntry& aEntry) {
+ switch (aEntry.GetKind()) {
+#define SWITCH_KIND(KIND, TYPE, SIZE) \
+ case ProfileBufferEntry::Kind::KIND: { \
+ return aProfileChunkedBuffer.PutFrom(&aEntry, 1 + (SIZE)); \
+ }
+
+ FOR_EACH_PROFILE_BUFFER_ENTRY_KIND(SWITCH_KIND)
+
+#undef SWITCH_KIND
+ default:
+ MOZ_ASSERT(false, "Unhandled ProfilerBuffer entry KIND");
+ return ProfileBufferBlockIndex{};
+ }
+}
+
+// Called from signal, call only reentrant functions
+uint64_t ProfileBuffer::AddEntry(const ProfileBufferEntry& aEntry) {
+ return AddEntry(mEntries, aEntry).ConvertToProfileBufferIndex();
+}
+
+/* static */
+ProfileBufferBlockIndex ProfileBuffer::AddThreadIdEntry(
+ ProfileChunkedBuffer& aProfileChunkedBuffer, ProfilerThreadId aThreadId) {
+ return AddEntry(aProfileChunkedBuffer,
+ ProfileBufferEntry::ThreadId(aThreadId));
+}
+
+uint64_t ProfileBuffer::AddThreadIdEntry(ProfilerThreadId aThreadId) {
+ return AddThreadIdEntry(mEntries, aThreadId).ConvertToProfileBufferIndex();
+}
+
+void ProfileBuffer::CollectCodeLocation(
+ const char* aLabel, const char* aStr, uint32_t aFrameFlags,
+ uint64_t aInnerWindowID, const Maybe<uint32_t>& aLineNumber,
+ const Maybe<uint32_t>& aColumnNumber,
+ const Maybe<JS::ProfilingCategoryPair>& aCategoryPair) {
+ AddEntry(ProfileBufferEntry::Label(aLabel));
+ AddEntry(ProfileBufferEntry::FrameFlags(uint64_t(aFrameFlags)));
+
+ if (aStr) {
+ // Store the string using one or more DynamicStringFragment entries.
+ size_t strLen = strlen(aStr) + 1; // +1 for the null terminator
+ // If larger than the prescribed limit, we will cut the string and end it
+ // with an ellipsis.
+ const bool tooBig = strLen > kMaxFrameKeyLength;
+ if (tooBig) {
+ strLen = kMaxFrameKeyLength;
+ }
+ char chars[ProfileBufferEntry::kNumChars];
+ for (size_t j = 0;; j += ProfileBufferEntry::kNumChars) {
+ // Store up to kNumChars characters in the entry.
+ size_t len = ProfileBufferEntry::kNumChars;
+ const bool last = j + len >= strLen;
+ if (last) {
+ // Only the last entry may be smaller than kNumChars.
+ len = strLen - j;
+ if (tooBig) {
+ // That last entry is part of a too-big string, replace the end
+ // characters with an ellipsis "...".
+ len = std::max(len, size_t(4));
+ chars[len - 4] = '.';
+ chars[len - 3] = '.';
+ chars[len - 2] = '.';
+ chars[len - 1] = '\0';
+ // Make sure the memcpy will not overwrite our ellipsis!
+ len -= 4;
+ }
+ }
+ memcpy(chars, &aStr[j], len);
+ AddEntry(ProfileBufferEntry::DynamicStringFragment(chars));
+ if (last) {
+ break;
+ }
+ }
+ }
+
+ if (aInnerWindowID) {
+ AddEntry(ProfileBufferEntry::InnerWindowID(aInnerWindowID));
+ }
+
+ if (aLineNumber) {
+ AddEntry(ProfileBufferEntry::LineNumber(*aLineNumber));
+ }
+
+ if (aColumnNumber) {
+ AddEntry(ProfileBufferEntry::ColumnNumber(*aColumnNumber));
+ }
+
+ if (aCategoryPair.isSome()) {
+ AddEntry(ProfileBufferEntry::CategoryPair(int(*aCategoryPair)));
+ }
+}
+
+size_t ProfileBuffer::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const {
+ // Measurement of the following members may be added later if DMD finds it
+ // is worthwhile:
+ // - memory pointed to by the elements within mEntries
+ return mEntries.SizeOfExcludingThis(aMallocSizeOf);
+}
+
+size_t ProfileBuffer::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
+ return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
+}
+
+void ProfileBuffer::CollectOverheadStats(double aSamplingTimeMs,
+ TimeDuration aLocking,
+ TimeDuration aCleaning,
+ TimeDuration aCounters,
+ TimeDuration aThreads) {
+ double timeUs = aSamplingTimeMs * 1000.0;
+ if (mFirstSamplingTimeUs == 0.0) {
+ mFirstSamplingTimeUs = timeUs;
+ } else {
+ // Note that we'll have 1 fewer interval than other numbers (because
+ // we need both ends of an interval to know its duration). The final
+ // difference should be insignificant over the expected many thousands
+ // of iterations.
+ mIntervalsUs.Count(timeUs - mLastSamplingTimeUs);
+ }
+ mLastSamplingTimeUs = timeUs;
+ double locking = aLocking.ToMilliseconds() * 1000.0;
+ double cleaning = aCleaning.ToMilliseconds() * 1000.0;
+ double counters = aCounters.ToMilliseconds() * 1000.0;
+ double threads = aThreads.ToMilliseconds() * 1000.0;
+
+ mOverheadsUs.Count(locking + cleaning + counters + threads);
+ mLockingsUs.Count(locking);
+ mCleaningsUs.Count(cleaning);
+ mCountersUs.Count(counters);
+ mThreadsUs.Count(threads);
+
+ static const bool sRecordSamplingOverhead = []() {
+ const char* recordOverheads = getenv("MOZ_PROFILER_RECORD_OVERHEADS");
+ return recordOverheads && recordOverheads[0] != '\0';
+ }();
+ if (sRecordSamplingOverhead) {
+ AddEntry(ProfileBufferEntry::ProfilerOverheadTime(aSamplingTimeMs));
+ AddEntry(ProfileBufferEntry::ProfilerOverheadDuration(locking));
+ AddEntry(ProfileBufferEntry::ProfilerOverheadDuration(cleaning));
+ AddEntry(ProfileBufferEntry::ProfilerOverheadDuration(counters));
+ AddEntry(ProfileBufferEntry::ProfilerOverheadDuration(threads));
+ }
+}
+
+ProfilerBufferInfo ProfileBuffer::GetProfilerBufferInfo() const {
+ return {BufferRangeStart(),
+ BufferRangeEnd(),
+ static_cast<uint32_t>(*mEntries.BufferLength() /
+ 8), // 8 bytes per entry.
+ mIntervalsUs,
+ mOverheadsUs,
+ mLockingsUs,
+ mCleaningsUs,
+ mCountersUs,
+ mThreadsUs};
+}
+
+/* ProfileBufferCollector */
+
+void ProfileBufferCollector::CollectNativeLeafAddr(void* aAddr) {
+ mBuf.AddEntry(ProfileBufferEntry::NativeLeafAddr(aAddr));
+}
+
+void ProfileBufferCollector::CollectJitReturnAddr(void* aAddr) {
+ mBuf.AddEntry(ProfileBufferEntry::JitReturnAddr(aAddr));
+}
+
+void ProfileBufferCollector::CollectWasmFrame(const char* aLabel) {
+ mBuf.CollectCodeLocation("", aLabel, 0, 0, Nothing(), Nothing(),
+ Some(JS::ProfilingCategoryPair::JS_Wasm));
+}
+
+void ProfileBufferCollector::CollectProfilingStackFrame(
+ const js::ProfilingStackFrame& aFrame) {
+ // WARNING: this function runs within the profiler's "critical section".
+
+ MOZ_ASSERT(aFrame.isLabelFrame() ||
+ (aFrame.isJsFrame() && !aFrame.isOSRFrame()));
+
+ const char* label = aFrame.label();
+ const char* dynamicString = aFrame.dynamicString();
+ Maybe<uint32_t> line;
+ Maybe<uint32_t> column;
+
+ if (aFrame.isJsFrame()) {
+ // There are two kinds of JS frames that get pushed onto the ProfilingStack.
+ //
+ // - label = "", dynamic string = <something>
+ // - label = "js::RunScript", dynamic string = nullptr
+ //
+ // The line number is only interesting in the first case.
+
+ if (label[0] == '\0') {
+ MOZ_ASSERT(dynamicString);
+
+ // We call aFrame.script() repeatedly -- rather than storing the result in
+ // a local variable in order -- to avoid rooting hazards.
+ if (aFrame.script()) {
+ if (aFrame.pc()) {
+ unsigned col = 0;
+ line = Some(JS_PCToLineNumber(aFrame.script(), aFrame.pc(), &col));
+ column = Some(col);
+ }
+ }
+
+ } else {
+ MOZ_ASSERT(strcmp(label, "js::RunScript") == 0 && !dynamicString);
+ }
+ } else {
+ MOZ_ASSERT(aFrame.isLabelFrame());
+ }
+
+ mBuf.CollectCodeLocation(label, dynamicString, aFrame.flags(),
+ aFrame.realmID(), line, column,
+ Some(aFrame.categoryPair()));
+}
diff --git a/tools/profiler/core/ProfileBuffer.h b/tools/profiler/core/ProfileBuffer.h
new file mode 100644
index 0000000000..5da34909cc
--- /dev/null
+++ b/tools/profiler/core/ProfileBuffer.h
@@ -0,0 +1,260 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZ_PROFILE_BUFFER_H
+#define MOZ_PROFILE_BUFFER_H
+
+#include "GeckoProfiler.h"
+#include "ProfileBufferEntry.h"
+
+#include "mozilla/Maybe.h"
+#include "mozilla/PowerOfTwo.h"
+#include "mozilla/ProfileBufferChunkManagerSingle.h"
+#include "mozilla/ProfileChunkedBuffer.h"
+
+class ProcessStreamingContext;
+class RunningTimes;
+
+// Class storing most profiling data in a ProfileChunkedBuffer.
+//
+// This class is used as a queue of entries which, after construction, never
+// allocates. This makes it safe to use in the profiler's "critical section".
+class ProfileBuffer final {
+ public:
+ // ProfileBuffer constructor
+ // @param aBuffer The in-session ProfileChunkedBuffer to use as buffer
+ // manager.
+ explicit ProfileBuffer(mozilla::ProfileChunkedBuffer& aBuffer);
+
+ mozilla::ProfileChunkedBuffer& UnderlyingChunkedBuffer() const {
+ return mEntries;
+ }
+
+ bool IsThreadSafe() const { return mEntries.IsThreadSafe(); }
+
+ // Add |aEntry| to the buffer, ignoring what kind of entry it is.
+ uint64_t AddEntry(const ProfileBufferEntry& aEntry);
+
+ // Add to the buffer a sample start (ThreadId) entry for aThreadId.
+ // Returns the position of the entry.
+ uint64_t AddThreadIdEntry(ProfilerThreadId aThreadId);
+
+ void CollectCodeLocation(
+ const char* aLabel, const char* aStr, uint32_t aFrameFlags,
+ uint64_t aInnerWindowID, const mozilla::Maybe<uint32_t>& aLineNumber,
+ const mozilla::Maybe<uint32_t>& aColumnNumber,
+ const mozilla::Maybe<JS::ProfilingCategoryPair>& aCategoryPair);
+
+ // Maximum size of a frameKey string that we'll handle.
+ static const size_t kMaxFrameKeyLength = 512;
+
+ // Add JIT frame information to aJITFrameInfo for any JitReturnAddr entries
+ // that are currently in the buffer at or after aRangeStart, in samples
+ // for the given thread.
+ void AddJITInfoForRange(uint64_t aRangeStart, ProfilerThreadId aThreadId,
+ JSContext* aContext, JITFrameInfo& aJITFrameInfo,
+ mozilla::ProgressLogger aProgressLogger) const;
+
+ // Stream JSON for samples in the buffer to aWriter, using the supplied
+ // UniqueStacks object.
+ // Only streams samples for the given thread ID and which were taken at or
+ // after aSinceTime. If ID is 0, ignore the stored thread ID; this should only
+ // be used when the buffer contains only one sample.
+ // aUniqueStacks needs to contain information about any JIT frames that we
+ // might encounter in the buffer, before this method is called. In other
+ // words, you need to have called AddJITInfoForRange for every range that
+ // might contain JIT frame information before calling this method.
+ // Return the thread ID of the streamed sample(s), or 0.
+ ProfilerThreadId StreamSamplesToJSON(
+ SpliceableJSONWriter& aWriter, ProfilerThreadId aThreadId,
+ double aSinceTime, UniqueStacks& aUniqueStacks,
+ mozilla::ProgressLogger aProgressLogger) const;
+
+ void StreamMarkersToJSON(SpliceableJSONWriter& aWriter,
+ ProfilerThreadId aThreadId,
+ const mozilla::TimeStamp& aProcessStartTime,
+ double aSinceTime, UniqueStacks& aUniqueStacks,
+ mozilla::ProgressLogger aProgressLogger) const;
+
+ // Stream samples and markers from all threads that `aProcessStreamingContext`
+ // accepts.
+ void StreamSamplesAndMarkersToJSON(
+ ProcessStreamingContext& aProcessStreamingContext,
+ mozilla::ProgressLogger aProgressLogger) const;
+
+ void StreamPausedRangesToJSON(SpliceableJSONWriter& aWriter,
+ double aSinceTime,
+ mozilla::ProgressLogger aProgressLogger) const;
+ void StreamProfilerOverheadToJSON(
+ SpliceableJSONWriter& aWriter,
+ const mozilla::TimeStamp& aProcessStartTime, double aSinceTime,
+ mozilla::ProgressLogger aProgressLogger) const;
+ void StreamCountersToJSON(SpliceableJSONWriter& aWriter,
+ const mozilla::TimeStamp& aProcessStartTime,
+ double aSinceTime,
+ mozilla::ProgressLogger aProgressLogger) const;
+
+ // Find (via |aLastSample|) the most recent sample for the thread denoted by
+ // |aThreadId| and clone it, patching in the current time as appropriate.
+ // Mutate |aLastSample| to point to the newly inserted sample.
+ // Returns whether duplication was successful.
+ bool DuplicateLastSample(ProfilerThreadId aThreadId, double aSampleTimeMs,
+ mozilla::Maybe<uint64_t>& aLastSample,
+ const RunningTimes& aRunningTimes);
+
+ void DiscardSamplesBeforeTime(double aTime);
+
+ // Read an entry in the buffer.
+ ProfileBufferEntry GetEntry(uint64_t aPosition) const {
+ return mEntries.ReadAt(
+ mozilla::ProfileBufferBlockIndex::CreateFromProfileBufferIndex(
+ aPosition),
+ [&](mozilla::Maybe<mozilla::ProfileBufferEntryReader>&& aMER) {
+ ProfileBufferEntry entry;
+ if (aMER.isSome()) {
+ if (aMER->CurrentBlockIndex().ConvertToProfileBufferIndex() ==
+ aPosition) {
+ // If we're here, it means `aPosition` pointed at a valid block.
+ MOZ_RELEASE_ASSERT(aMER->RemainingBytes() <= sizeof(entry));
+ aMER->ReadBytes(&entry, aMER->RemainingBytes());
+ } else {
+ // EntryReader at the wrong position, pretend to have read
+ // everything.
+ aMER->SetRemainingBytes(0);
+ }
+ }
+ return entry;
+ });
+ }
+
+ size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
+ size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
+
+ void CollectOverheadStats(double aSamplingTimeMs,
+ mozilla::TimeDuration aLocking,
+ mozilla::TimeDuration aCleaning,
+ mozilla::TimeDuration aCounters,
+ mozilla::TimeDuration aThreads);
+
+ ProfilerBufferInfo GetProfilerBufferInfo() const;
+
+ private:
+ // Add |aEntry| to the provided ProfileChunkedBuffer.
+ // `static` because it may be used to add an entry to a `ProfileChunkedBuffer`
+ // that is not attached to a `ProfileBuffer`.
+ static mozilla::ProfileBufferBlockIndex AddEntry(
+ mozilla::ProfileChunkedBuffer& aProfileChunkedBuffer,
+ const ProfileBufferEntry& aEntry);
+
+ // Add a sample start (ThreadId) entry for aThreadId to the provided
+ // ProfileChunkedBuffer. Returns the position of the entry.
+ // `static` because it may be used to add an entry to a `ProfileChunkedBuffer`
+ // that is not attached to a `ProfileBuffer`.
+ static mozilla::ProfileBufferBlockIndex AddThreadIdEntry(
+ mozilla::ProfileChunkedBuffer& aProfileChunkedBuffer,
+ ProfilerThreadId aThreadId);
+
+ // The storage in which this ProfileBuffer stores its entries.
+ mozilla::ProfileChunkedBuffer& mEntries;
+
+ public:
+ // `BufferRangeStart()` and `BufferRangeEnd()` return `uint64_t` values
+ // corresponding to the first entry and past the last entry stored in
+ // `mEntries`.
+ //
+ // The returned values are not guaranteed to be stable, because other threads
+ // may also be accessing the buffer concurrently. But they will always
+ // increase, and can therefore give an indication of how far these values have
+ // *at least* reached. In particular:
+ // - Entries whose index is strictly less that `BufferRangeStart()` have been
+ // discarded by now, so any related data may also be safely discarded.
+ // - It is safe to try and read entries at any index strictly less than
+ // `BufferRangeEnd()` -- but note that these reads may fail by the time you
+ // request them, as old entries get overwritten by new ones.
+ uint64_t BufferRangeStart() const { return mEntries.GetState().mRangeStart; }
+ uint64_t BufferRangeEnd() const { return mEntries.GetState().mRangeEnd; }
+
+ private:
+ // Single pre-allocated chunk (to avoid spurious mallocs), used when:
+ // - Duplicating sleeping stacks (hence scExpectedMaximumStackSize).
+ // - Adding JIT info.
+ // - Streaming stacks to JSON.
+ // Mutable because it's accessed from non-multithreaded const methods.
+ mutable mozilla::Maybe<mozilla::ProfileBufferChunkManagerSingle>
+ mMaybeWorkerChunkManager;
+ mozilla::ProfileBufferChunkManagerSingle& WorkerChunkManager() const {
+ if (mMaybeWorkerChunkManager.isNothing()) {
+ // Only actually allocate it on first use. (Some ProfileBuffers are
+ // temporary and don't actually need this.)
+ mMaybeWorkerChunkManager.emplace(
+ mozilla::ProfileBufferChunk::SizeofChunkMetadata() +
+ mozilla::ProfileBufferChunkManager::scExpectedMaximumStackSize);
+ }
+ return *mMaybeWorkerChunkManager;
+ }
+
+ // GetStreamingParametersForThreadCallback:
+ // (ProfilerThreadId) -> Maybe<StreamingParametersForThread>
+ template <typename GetStreamingParametersForThreadCallback>
+ ProfilerThreadId DoStreamSamplesAndMarkersToJSON(
+ mozilla::FailureLatch& aFailureLatch,
+ GetStreamingParametersForThreadCallback&&
+ aGetStreamingParametersForThreadCallback,
+ double aSinceTime, ProcessStreamingContext* aStreamingContextForMarkers,
+ mozilla::ProgressLogger aProgressLogger) const;
+
+ double mFirstSamplingTimeUs = 0.0;
+ double mLastSamplingTimeUs = 0.0;
+ ProfilerStats mIntervalsUs;
+ ProfilerStats mOverheadsUs;
+ ProfilerStats mLockingsUs;
+ ProfilerStats mCleaningsUs;
+ ProfilerStats mCountersUs;
+ ProfilerStats mThreadsUs;
+};
+
+/**
+ * Helper type used to implement ProfilerStackCollector. This type is used as
+ * the collector for MergeStacks by ProfileBuffer. It holds a reference to the
+ * buffer, as well as additional feature flags which are needed to control the
+ * data collection strategy
+ */
+class ProfileBufferCollector final : public ProfilerStackCollector {
+ public:
+ ProfileBufferCollector(ProfileBuffer& aBuf, uint64_t aSamplePos,
+ uint64_t aBufferRangeStart)
+ : mBuf(aBuf),
+ mSamplePositionInBuffer(aSamplePos),
+ mBufferRangeStart(aBufferRangeStart) {
+ MOZ_ASSERT(
+ mSamplePositionInBuffer >= mBufferRangeStart,
+ "The sample position should always be after the buffer range start");
+ }
+
+ // Position at which the sample starts in the profiler buffer (which may be
+ // different from the buffer in which the sample data is collected here).
+ mozilla::Maybe<uint64_t> SamplePositionInBuffer() override {
+ return mozilla::Some(mSamplePositionInBuffer);
+ }
+
+ // Profiler buffer's range start (which may be different from the buffer in
+ // which the sample data is collected here).
+ mozilla::Maybe<uint64_t> BufferRangeStart() override {
+ return mozilla::Some(mBufferRangeStart);
+ }
+
+ virtual void CollectNativeLeafAddr(void* aAddr) override;
+ virtual void CollectJitReturnAddr(void* aAddr) override;
+ virtual void CollectWasmFrame(const char* aLabel) override;
+ virtual void CollectProfilingStackFrame(
+ const js::ProfilingStackFrame& aFrame) override;
+
+ private:
+ ProfileBuffer& mBuf;
+ uint64_t mSamplePositionInBuffer;
+ uint64_t mBufferRangeStart;
+};
+
+#endif
diff --git a/tools/profiler/core/ProfileBufferEntry.cpp b/tools/profiler/core/ProfileBufferEntry.cpp
new file mode 100644
index 0000000000..5429eac0b8
--- /dev/null
+++ b/tools/profiler/core/ProfileBufferEntry.cpp
@@ -0,0 +1,2321 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ProfileBufferEntry.h"
+
+#include "mozilla/ProfilerMarkers.h"
+#include "platform.h"
+#include "ProfileBuffer.h"
+#include "ProfiledThreadData.h"
+#include "ProfilerBacktrace.h"
+#include "ProfilerRustBindings.h"
+
+#include "js/ProfilingFrameIterator.h"
+#include "jsapi.h"
+#include "jsfriendapi.h"
+#include "mozilla/Logging.h"
+#include "mozilla/JSONStringWriteFuncs.h"
+#include "mozilla/ScopeExit.h"
+#include "mozilla/Sprintf.h"
+#include "mozilla/StackWalk.h"
+#include "nsThreadUtils.h"
+#include "nsXULAppAPI.h"
+#include "ProfilerCodeAddressService.h"
+
+#include <ostream>
+#include <type_traits>
+
+using namespace mozilla;
+using namespace mozilla::literals::ProportionValue_literals;
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN ProfileBufferEntry
+
+ProfileBufferEntry::ProfileBufferEntry()
+ : mKind(Kind::INVALID), mStorage{0, 0, 0, 0, 0, 0, 0, 0} {}
+
+// aString must be a static string.
+ProfileBufferEntry::ProfileBufferEntry(Kind aKind, const char* aString)
+ : mKind(aKind) {
+ MOZ_ASSERT(aKind == Kind::Label);
+ memcpy(mStorage, &aString, sizeof(aString));
+}
+
+ProfileBufferEntry::ProfileBufferEntry(Kind aKind, char aChars[kNumChars])
+ : mKind(aKind) {
+ MOZ_ASSERT(aKind == Kind::DynamicStringFragment);
+ memcpy(mStorage, aChars, kNumChars);
+}
+
+ProfileBufferEntry::ProfileBufferEntry(Kind aKind, void* aPtr) : mKind(aKind) {
+ memcpy(mStorage, &aPtr, sizeof(aPtr));
+}
+
+ProfileBufferEntry::ProfileBufferEntry(Kind aKind, double aDouble)
+ : mKind(aKind) {
+ memcpy(mStorage, &aDouble, sizeof(aDouble));
+}
+
+ProfileBufferEntry::ProfileBufferEntry(Kind aKind, int aInt) : mKind(aKind) {
+ memcpy(mStorage, &aInt, sizeof(aInt));
+}
+
+ProfileBufferEntry::ProfileBufferEntry(Kind aKind, int64_t aInt64)
+ : mKind(aKind) {
+ memcpy(mStorage, &aInt64, sizeof(aInt64));
+}
+
+ProfileBufferEntry::ProfileBufferEntry(Kind aKind, uint64_t aUint64)
+ : mKind(aKind) {
+ memcpy(mStorage, &aUint64, sizeof(aUint64));
+}
+
+ProfileBufferEntry::ProfileBufferEntry(Kind aKind, ProfilerThreadId aThreadId)
+ : mKind(aKind) {
+ static_assert(std::is_trivially_copyable_v<ProfilerThreadId>);
+ static_assert(sizeof(aThreadId) <= sizeof(mStorage));
+ memcpy(mStorage, &aThreadId, sizeof(aThreadId));
+}
+
+const char* ProfileBufferEntry::GetString() const {
+ const char* result;
+ memcpy(&result, mStorage, sizeof(result));
+ return result;
+}
+
+void* ProfileBufferEntry::GetPtr() const {
+ void* result;
+ memcpy(&result, mStorage, sizeof(result));
+ return result;
+}
+
+double ProfileBufferEntry::GetDouble() const {
+ double result;
+ memcpy(&result, mStorage, sizeof(result));
+ return result;
+}
+
+int ProfileBufferEntry::GetInt() const {
+ int result;
+ memcpy(&result, mStorage, sizeof(result));
+ return result;
+}
+
+int64_t ProfileBufferEntry::GetInt64() const {
+ int64_t result;
+ memcpy(&result, mStorage, sizeof(result));
+ return result;
+}
+
+uint64_t ProfileBufferEntry::GetUint64() const {
+ uint64_t result;
+ memcpy(&result, mStorage, sizeof(result));
+ return result;
+}
+
+ProfilerThreadId ProfileBufferEntry::GetThreadId() const {
+ ProfilerThreadId result;
+ static_assert(std::is_trivially_copyable_v<ProfilerThreadId>);
+ memcpy(&result, mStorage, sizeof(result));
+ return result;
+}
+
+void ProfileBufferEntry::CopyCharsInto(char (&aOutArray)[kNumChars]) const {
+ memcpy(aOutArray, mStorage, kNumChars);
+}
+
+// END ProfileBufferEntry
+////////////////////////////////////////////////////////////////////////
+
+struct TypeInfo {
+ Maybe<nsCString> mKeyedBy;
+ Maybe<nsCString> mName;
+ Maybe<nsCString> mLocation;
+ Maybe<unsigned> mLineNumber;
+};
+
+// As mentioned in ProfileBufferEntry.h, the JSON format contains many
+// arrays whose elements are laid out according to various schemas to help
+// de-duplication. This RAII class helps write these arrays by keeping track of
+// the last non-null element written and adding the appropriate number of null
+// elements when writing new non-null elements. It also automatically opens and
+// closes an array element on the given JSON writer.
+//
+// You grant the AutoArraySchemaWriter exclusive access to the JSONWriter and
+// the UniqueJSONStrings objects for the lifetime of AutoArraySchemaWriter. Do
+// not access them independently while the AutoArraySchemaWriter is alive.
+// If you need to add complex objects, call FreeFormElement(), which will give
+// you temporary access to the writer.
+//
+// Example usage:
+//
+// // Define the schema of elements in this type of array: [FOO, BAR, BAZ]
+// enum Schema : uint32_t {
+// FOO = 0,
+// BAR = 1,
+// BAZ = 2
+// };
+//
+// AutoArraySchemaWriter writer(someJsonWriter, someUniqueStrings);
+// if (shouldWriteFoo) {
+// writer.IntElement(FOO, getFoo());
+// }
+// ... etc ...
+//
+// The elements need to be added in-order.
+class MOZ_RAII AutoArraySchemaWriter {
+ public:
+ explicit AutoArraySchemaWriter(SpliceableJSONWriter& aWriter)
+ : mJSONWriter(aWriter), mNextFreeIndex(0) {
+ mJSONWriter.StartArrayElement();
+ }
+
+ ~AutoArraySchemaWriter() { mJSONWriter.EndArray(); }
+
+ template <typename T>
+ void IntElement(uint32_t aIndex, T aValue) {
+ static_assert(!std::is_same_v<T, uint64_t>,
+ "Narrowing uint64 -> int64 conversion not allowed");
+ FillUpTo(aIndex);
+ mJSONWriter.IntElement(static_cast<int64_t>(aValue));
+ }
+
+ void DoubleElement(uint32_t aIndex, double aValue) {
+ FillUpTo(aIndex);
+ mJSONWriter.DoubleElement(aValue);
+ }
+
+ void TimeMsElement(uint32_t aIndex, double aTime_ms) {
+ FillUpTo(aIndex);
+ mJSONWriter.TimeDoubleMsElement(aTime_ms);
+ }
+
+ void BoolElement(uint32_t aIndex, bool aValue) {
+ FillUpTo(aIndex);
+ mJSONWriter.BoolElement(aValue);
+ }
+
+ protected:
+ SpliceableJSONWriter& Writer() { return mJSONWriter; }
+
+ void FillUpTo(uint32_t aIndex) {
+ MOZ_ASSERT(aIndex >= mNextFreeIndex);
+ mJSONWriter.NullElements(aIndex - mNextFreeIndex);
+ mNextFreeIndex = aIndex + 1;
+ }
+
+ private:
+ SpliceableJSONWriter& mJSONWriter;
+ uint32_t mNextFreeIndex;
+};
+
+// Same as AutoArraySchemaWriter, but this can also write strings (output as
+// indexes into the table of unique strings).
+class MOZ_RAII AutoArraySchemaWithStringsWriter : public AutoArraySchemaWriter {
+ public:
+ AutoArraySchemaWithStringsWriter(SpliceableJSONWriter& aWriter,
+ UniqueJSONStrings& aStrings)
+ : AutoArraySchemaWriter(aWriter), mStrings(aStrings) {}
+
+ void StringElement(uint32_t aIndex, const Span<const char>& aValue) {
+ FillUpTo(aIndex);
+ mStrings.WriteElement(Writer(), aValue);
+ }
+
+ private:
+ UniqueJSONStrings& mStrings;
+};
+
+Maybe<UniqueStacks::StackKey> UniqueStacks::BeginStack(const FrameKey& aFrame) {
+ if (Maybe<uint32_t> frameIndex = GetOrAddFrameIndex(aFrame); frameIndex) {
+ return Some(StackKey(*frameIndex));
+ }
+ return Nothing{};
+}
+
+Vector<JITFrameInfoForBufferRange>&&
+JITFrameInfo::MoveRangesWithNewFailureLatch(FailureLatch& aFailureLatch) && {
+ aFailureLatch.SetFailureFrom(mLocalFailureLatchSource);
+ return std::move(mRanges);
+}
+
+UniquePtr<UniqueJSONStrings>&&
+JITFrameInfo::MoveUniqueStringsWithNewFailureLatch(
+ FailureLatch& aFailureLatch) && {
+ if (mUniqueStrings) {
+ mUniqueStrings->ChangeFailureLatchAndForwardState(aFailureLatch);
+ } else {
+ aFailureLatch.SetFailureFrom(mLocalFailureLatchSource);
+ }
+ return std::move(mUniqueStrings);
+}
+
+Maybe<UniqueStacks::StackKey> UniqueStacks::AppendFrame(
+ const StackKey& aStack, const FrameKey& aFrame) {
+ if (Maybe<uint32_t> stackIndex = GetOrAddStackIndex(aStack); stackIndex) {
+ if (Maybe<uint32_t> frameIndex = GetOrAddFrameIndex(aFrame); frameIndex) {
+ return Some(StackKey(aStack, *stackIndex, *frameIndex));
+ }
+ }
+ return Nothing{};
+}
+
+JITFrameInfoForBufferRange JITFrameInfoForBufferRange::Clone() const {
+ JITFrameInfoForBufferRange::JITAddressToJITFramesMap jitAddressToJITFramesMap;
+ MOZ_RELEASE_ASSERT(
+ jitAddressToJITFramesMap.reserve(mJITAddressToJITFramesMap.count()));
+ for (auto iter = mJITAddressToJITFramesMap.iter(); !iter.done();
+ iter.next()) {
+ const mozilla::Vector<JITFrameKey>& srcKeys = iter.get().value();
+ mozilla::Vector<JITFrameKey> destKeys;
+ MOZ_RELEASE_ASSERT(destKeys.appendAll(srcKeys));
+ jitAddressToJITFramesMap.putNewInfallible(iter.get().key(),
+ std::move(destKeys));
+ }
+
+ JITFrameInfoForBufferRange::JITFrameToFrameJSONMap jitFrameToFrameJSONMap;
+ MOZ_RELEASE_ASSERT(
+ jitFrameToFrameJSONMap.reserve(mJITFrameToFrameJSONMap.count()));
+ for (auto iter = mJITFrameToFrameJSONMap.iter(); !iter.done(); iter.next()) {
+ jitFrameToFrameJSONMap.putNewInfallible(iter.get().key(),
+ iter.get().value());
+ }
+
+ return JITFrameInfoForBufferRange{mRangeStart, mRangeEnd,
+ std::move(jitAddressToJITFramesMap),
+ std::move(jitFrameToFrameJSONMap)};
+}
+
+JITFrameInfo::JITFrameInfo(const JITFrameInfo& aOther,
+ mozilla::ProgressLogger aProgressLogger)
+ : mUniqueStrings(MakeUniqueFallible<UniqueJSONStrings>(
+ mLocalFailureLatchSource, *aOther.mUniqueStrings,
+ aProgressLogger.CreateSubLoggerFromTo(
+ 0_pc, "Creating JIT frame info unique strings...", 49_pc,
+ "Created JIT frame info unique strings"))) {
+ if (!mUniqueStrings) {
+ mLocalFailureLatchSource.SetFailure(
+ "OOM in JITFrameInfo allocating mUniqueStrings");
+ return;
+ }
+
+ if (mRanges.reserve(aOther.mRanges.length())) {
+ for (auto&& [i, progressLogger] :
+ aProgressLogger.CreateLoopSubLoggersFromTo(50_pc, 100_pc,
+ aOther.mRanges.length(),
+ "Copying JIT frame info")) {
+ mRanges.infallibleAppend(aOther.mRanges[i].Clone());
+ }
+ } else {
+ mLocalFailureLatchSource.SetFailure("OOM in JITFrameInfo resizing mRanges");
+ }
+}
+
+bool UniqueStacks::FrameKey::NormalFrameData::operator==(
+ const NormalFrameData& aOther) const {
+ return mLocation == aOther.mLocation &&
+ mRelevantForJS == aOther.mRelevantForJS &&
+ mBaselineInterp == aOther.mBaselineInterp &&
+ mInnerWindowID == aOther.mInnerWindowID && mLine == aOther.mLine &&
+ mColumn == aOther.mColumn && mCategoryPair == aOther.mCategoryPair;
+}
+
+bool UniqueStacks::FrameKey::JITFrameData::operator==(
+ const JITFrameData& aOther) const {
+ return mCanonicalAddress == aOther.mCanonicalAddress &&
+ mDepth == aOther.mDepth && mRangeIndex == aOther.mRangeIndex;
+}
+
+// Consume aJITFrameInfo by stealing its string table and its JIT frame info
+// ranges. The JIT frame info contains JSON which refers to strings from the
+// JIT frame info's string table, so our string table needs to have the same
+// strings at the same indices.
+UniqueStacks::UniqueStacks(
+ FailureLatch& aFailureLatch, JITFrameInfo&& aJITFrameInfo,
+ ProfilerCodeAddressService* aCodeAddressService /* = nullptr */)
+ : mUniqueStrings(std::move(aJITFrameInfo)
+ .MoveUniqueStringsWithNewFailureLatch(aFailureLatch)),
+ mCodeAddressService(aCodeAddressService),
+ mFrameTableWriter(aFailureLatch),
+ mStackTableWriter(aFailureLatch),
+ mJITInfoRanges(std::move(aJITFrameInfo)
+ .MoveRangesWithNewFailureLatch(aFailureLatch)) {
+ if (!mUniqueStrings) {
+ SetFailure("Did not get mUniqueStrings from JITFrameInfo");
+ return;
+ }
+
+ mFrameTableWriter.StartBareList();
+ mStackTableWriter.StartBareList();
+}
+
+Maybe<uint32_t> UniqueStacks::GetOrAddStackIndex(const StackKey& aStack) {
+ if (Failed()) {
+ return Nothing{};
+ }
+
+ uint32_t count = mStackToIndexMap.count();
+ auto entry = mStackToIndexMap.lookupForAdd(aStack);
+ if (entry) {
+ MOZ_ASSERT(entry->value() < count);
+ return Some(entry->value());
+ }
+
+ if (!mStackToIndexMap.add(entry, aStack, count)) {
+ SetFailure("OOM in UniqueStacks::GetOrAddStackIndex");
+ return Nothing{};
+ }
+ StreamStack(aStack);
+ return Some(count);
+}
+
+Maybe<Vector<UniqueStacks::FrameKey>>
+UniqueStacks::LookupFramesForJITAddressFromBufferPos(void* aJITAddress,
+ uint64_t aBufferPos) {
+ JITFrameInfoForBufferRange* rangeIter =
+ std::lower_bound(mJITInfoRanges.begin(), mJITInfoRanges.end(), aBufferPos,
+ [](const JITFrameInfoForBufferRange& aRange,
+ uint64_t aPos) { return aRange.mRangeEnd < aPos; });
+ MOZ_RELEASE_ASSERT(
+ rangeIter != mJITInfoRanges.end() &&
+ rangeIter->mRangeStart <= aBufferPos &&
+ aBufferPos < rangeIter->mRangeEnd,
+ "Buffer position of jit address needs to be in one of the ranges");
+
+ using JITFrameKey = JITFrameInfoForBufferRange::JITFrameKey;
+
+ const JITFrameInfoForBufferRange& jitFrameInfoRange = *rangeIter;
+ auto jitFrameKeys =
+ jitFrameInfoRange.mJITAddressToJITFramesMap.lookup(aJITAddress);
+ if (!jitFrameKeys) {
+ return Nothing();
+ }
+
+ // Map the array of JITFrameKeys to an array of FrameKeys, and ensure that
+ // each of the FrameKeys exists in mFrameToIndexMap.
+ Vector<FrameKey> frameKeys;
+ MOZ_RELEASE_ASSERT(frameKeys.initCapacity(jitFrameKeys->value().length()));
+ for (const JITFrameKey& jitFrameKey : jitFrameKeys->value()) {
+ FrameKey frameKey(jitFrameKey.mCanonicalAddress, jitFrameKey.mDepth,
+ rangeIter - mJITInfoRanges.begin());
+ uint32_t index = mFrameToIndexMap.count();
+ auto entry = mFrameToIndexMap.lookupForAdd(frameKey);
+ if (!entry) {
+ // We need to add this frame to our frame table. The JSON for this frame
+ // already exists in jitFrameInfoRange, we just need to splice it into
+ // the frame table and give it an index.
+ auto frameJSON =
+ jitFrameInfoRange.mJITFrameToFrameJSONMap.lookup(jitFrameKey);
+ MOZ_RELEASE_ASSERT(frameJSON, "Should have cached JSON for this frame");
+ mFrameTableWriter.Splice(frameJSON->value());
+ MOZ_RELEASE_ASSERT(mFrameToIndexMap.add(entry, frameKey, index));
+ }
+ MOZ_RELEASE_ASSERT(frameKeys.append(std::move(frameKey)));
+ }
+ return Some(std::move(frameKeys));
+}
+
+Maybe<uint32_t> UniqueStacks::GetOrAddFrameIndex(const FrameKey& aFrame) {
+ if (Failed()) {
+ return Nothing{};
+ }
+
+ uint32_t count = mFrameToIndexMap.count();
+ auto entry = mFrameToIndexMap.lookupForAdd(aFrame);
+ if (entry) {
+ MOZ_ASSERT(entry->value() < count);
+ return Some(entry->value());
+ }
+
+ if (!mFrameToIndexMap.add(entry, aFrame, count)) {
+ SetFailure("OOM in UniqueStacks::GetOrAddFrameIndex");
+ return Nothing{};
+ }
+ StreamNonJITFrame(aFrame);
+ return Some(count);
+}
+
+void UniqueStacks::SpliceFrameTableElements(SpliceableJSONWriter& aWriter) {
+ mFrameTableWriter.EndBareList();
+ aWriter.TakeAndSplice(mFrameTableWriter.TakeChunkedWriteFunc());
+}
+
+void UniqueStacks::SpliceStackTableElements(SpliceableJSONWriter& aWriter) {
+ mStackTableWriter.EndBareList();
+ aWriter.TakeAndSplice(mStackTableWriter.TakeChunkedWriteFunc());
+}
+
+[[nodiscard]] nsAutoCString UniqueStacks::FunctionNameOrAddress(void* aPC) {
+ nsAutoCString nameOrAddress;
+
+ if (!mCodeAddressService ||
+ !mCodeAddressService->GetFunction(aPC, nameOrAddress) ||
+ nameOrAddress.IsEmpty()) {
+ nameOrAddress.AppendASCII("0x");
+ // `AppendInt` only knows `uint32_t` or `uint64_t`, but because these are
+ // just aliases for *two* of (`unsigned`, `unsigned long`, and `unsigned
+ // long long`), a call with `uintptr_t` could use the third type and
+ // therefore would be ambiguous.
+ // So we want to force using exactly `uint32_t` or `uint64_t`, whichever
+ // matches the size of `uintptr_t`.
+ // (The outer cast to `uint` should then be a no-op.)
+ using uint = std::conditional_t<sizeof(uintptr_t) <= sizeof(uint32_t),
+ uint32_t, uint64_t>;
+ nameOrAddress.AppendInt(static_cast<uint>(reinterpret_cast<uintptr_t>(aPC)),
+ 16);
+ }
+
+ return nameOrAddress;
+}
+
+void UniqueStacks::StreamStack(const StackKey& aStack) {
+ enum Schema : uint32_t { PREFIX = 0, FRAME = 1 };
+
+ AutoArraySchemaWriter writer(mStackTableWriter);
+ if (aStack.mPrefixStackIndex.isSome()) {
+ writer.IntElement(PREFIX, *aStack.mPrefixStackIndex);
+ }
+ writer.IntElement(FRAME, aStack.mFrameIndex);
+}
+
+void UniqueStacks::StreamNonJITFrame(const FrameKey& aFrame) {
+ if (Failed()) {
+ return;
+ }
+
+ using NormalFrameData = FrameKey::NormalFrameData;
+
+ enum Schema : uint32_t {
+ LOCATION = 0,
+ RELEVANT_FOR_JS = 1,
+ INNER_WINDOW_ID = 2,
+ IMPLEMENTATION = 3,
+ LINE = 4,
+ COLUMN = 5,
+ CATEGORY = 6,
+ SUBCATEGORY = 7
+ };
+
+ AutoArraySchemaWithStringsWriter writer(mFrameTableWriter, *mUniqueStrings);
+
+ const NormalFrameData& data = aFrame.mData.as<NormalFrameData>();
+ writer.StringElement(LOCATION, data.mLocation);
+ writer.BoolElement(RELEVANT_FOR_JS, data.mRelevantForJS);
+
+ // It's okay to convert uint64_t to double here because DOM always creates IDs
+ // that are convertible to double.
+ writer.DoubleElement(INNER_WINDOW_ID, data.mInnerWindowID);
+
+ // The C++ interpreter is the default implementation so we only emit element
+ // for Baseline Interpreter frames.
+ if (data.mBaselineInterp) {
+ writer.StringElement(IMPLEMENTATION, MakeStringSpan("blinterp"));
+ }
+
+ if (data.mLine.isSome()) {
+ writer.IntElement(LINE, *data.mLine);
+ }
+ if (data.mColumn.isSome()) {
+ writer.IntElement(COLUMN, *data.mColumn);
+ }
+ if (data.mCategoryPair.isSome()) {
+ const JS::ProfilingCategoryPairInfo& info =
+ JS::GetProfilingCategoryPairInfo(*data.mCategoryPair);
+ writer.IntElement(CATEGORY, uint32_t(info.mCategory));
+ writer.IntElement(SUBCATEGORY, info.mSubcategoryIndex);
+ }
+}
+
+static void StreamJITFrame(JSContext* aContext, SpliceableJSONWriter& aWriter,
+ UniqueJSONStrings& aUniqueStrings,
+ const JS::ProfiledFrameHandle& aJITFrame) {
+ enum Schema : uint32_t {
+ LOCATION = 0,
+ RELEVANT_FOR_JS = 1,
+ INNER_WINDOW_ID = 2,
+ IMPLEMENTATION = 3,
+ LINE = 4,
+ COLUMN = 5,
+ CATEGORY = 6,
+ SUBCATEGORY = 7
+ };
+
+ AutoArraySchemaWithStringsWriter writer(aWriter, aUniqueStrings);
+
+ writer.StringElement(LOCATION, MakeStringSpan(aJITFrame.label()));
+ writer.BoolElement(RELEVANT_FOR_JS, false);
+
+ // It's okay to convert uint64_t to double here because DOM always creates IDs
+ // that are convertible to double.
+ // Realm ID is the name of innerWindowID inside JS code.
+ writer.DoubleElement(INNER_WINDOW_ID, aJITFrame.realmID());
+
+ JS::ProfilingFrameIterator::FrameKind frameKind = aJITFrame.frameKind();
+ MOZ_ASSERT(frameKind == JS::ProfilingFrameIterator::Frame_Ion ||
+ frameKind == JS::ProfilingFrameIterator::Frame_Baseline);
+ writer.StringElement(IMPLEMENTATION,
+ frameKind == JS::ProfilingFrameIterator::Frame_Ion
+ ? MakeStringSpan("ion")
+ : MakeStringSpan("baseline"));
+
+ const JS::ProfilingCategoryPairInfo& info = JS::GetProfilingCategoryPairInfo(
+ frameKind == JS::ProfilingFrameIterator::Frame_Ion
+ ? JS::ProfilingCategoryPair::JS_IonMonkey
+ : JS::ProfilingCategoryPair::JS_Baseline);
+ writer.IntElement(CATEGORY, uint32_t(info.mCategory));
+ writer.IntElement(SUBCATEGORY, info.mSubcategoryIndex);
+}
+
+static nsCString JSONForJITFrame(JSContext* aContext,
+ const JS::ProfiledFrameHandle& aJITFrame,
+ UniqueJSONStrings& aUniqueStrings) {
+ nsCString json;
+ JSONStringRefWriteFunc jw(json);
+ SpliceableJSONWriter writer(jw, aUniqueStrings.SourceFailureLatch());
+ StreamJITFrame(aContext, writer, aUniqueStrings, aJITFrame);
+ return json;
+}
+
+void JITFrameInfo::AddInfoForRange(
+ uint64_t aRangeStart, uint64_t aRangeEnd, JSContext* aCx,
+ const std::function<void(const std::function<void(void*)>&)>&
+ aJITAddressProvider) {
+ if (mLocalFailureLatchSource.Failed()) {
+ return;
+ }
+
+ if (aRangeStart == aRangeEnd) {
+ return;
+ }
+
+ MOZ_RELEASE_ASSERT(aRangeStart < aRangeEnd);
+
+ if (!mRanges.empty()) {
+ const JITFrameInfoForBufferRange& prevRange = mRanges.back();
+ MOZ_RELEASE_ASSERT(prevRange.mRangeEnd <= aRangeStart,
+ "Ranges must be non-overlapping and added in-order.");
+ }
+
+ using JITFrameKey = JITFrameInfoForBufferRange::JITFrameKey;
+
+ JITFrameInfoForBufferRange::JITAddressToJITFramesMap jitAddressToJITFrameMap;
+ JITFrameInfoForBufferRange::JITFrameToFrameJSONMap jitFrameToFrameJSONMap;
+
+ aJITAddressProvider([&](void* aJITAddress) {
+ // Make sure that we have cached data for aJITAddress.
+ auto addressEntry = jitAddressToJITFrameMap.lookupForAdd(aJITAddress);
+ if (!addressEntry) {
+ Vector<JITFrameKey> jitFrameKeys;
+ for (JS::ProfiledFrameHandle handle :
+ JS::GetProfiledFrames(aCx, aJITAddress)) {
+ uint32_t depth = jitFrameKeys.length();
+ JITFrameKey jitFrameKey{handle.canonicalAddress(), depth};
+ auto frameEntry = jitFrameToFrameJSONMap.lookupForAdd(jitFrameKey);
+ if (!frameEntry) {
+ if (!jitFrameToFrameJSONMap.add(
+ frameEntry, jitFrameKey,
+ JSONForJITFrame(aCx, handle, *mUniqueStrings))) {
+ mLocalFailureLatchSource.SetFailure(
+ "OOM in JITFrameInfo::AddInfoForRange adding jit->frame map");
+ return;
+ }
+ }
+ if (!jitFrameKeys.append(jitFrameKey)) {
+ mLocalFailureLatchSource.SetFailure(
+ "OOM in JITFrameInfo::AddInfoForRange adding jit frame key");
+ return;
+ }
+ }
+ if (!jitAddressToJITFrameMap.add(addressEntry, aJITAddress,
+ std::move(jitFrameKeys))) {
+ mLocalFailureLatchSource.SetFailure(
+ "OOM in JITFrameInfo::AddInfoForRange adding addr->jit map");
+ return;
+ }
+ }
+ });
+
+ if (!mRanges.append(JITFrameInfoForBufferRange{
+ aRangeStart, aRangeEnd, std::move(jitAddressToJITFrameMap),
+ std::move(jitFrameToFrameJSONMap)})) {
+ mLocalFailureLatchSource.SetFailure(
+ "OOM in JITFrameInfo::AddInfoForRange adding range");
+ return;
+ }
+}
+
+struct ProfileSample {
+ uint32_t mStack = 0;
+ double mTime = 0.0;
+ Maybe<double> mResponsiveness;
+ RunningTimes mRunningTimes;
+};
+
+// Write CPU measurements with "Delta" unit, which is some amount of work that
+// happened since the previous sample.
+static void WriteDelta(AutoArraySchemaWriter& aSchemaWriter, uint32_t aProperty,
+ uint64_t aDelta) {
+ aSchemaWriter.IntElement(aProperty, int64_t(aDelta));
+}
+
+static void WriteSample(SpliceableJSONWriter& aWriter,
+ const ProfileSample& aSample) {
+ enum Schema : uint32_t {
+ STACK = 0,
+ TIME = 1,
+ EVENT_DELAY = 2
+#define RUNNING_TIME_SCHEMA(index, name, unit, jsonProperty) , name
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_SCHEMA)
+#undef RUNNING_TIME_SCHEMA
+ };
+
+ AutoArraySchemaWriter writer(aWriter);
+
+ writer.IntElement(STACK, aSample.mStack);
+
+ writer.TimeMsElement(TIME, aSample.mTime);
+
+ if (aSample.mResponsiveness.isSome()) {
+ writer.DoubleElement(EVENT_DELAY, *aSample.mResponsiveness);
+ }
+
+#define RUNNING_TIME_STREAM(index, name, unit, jsonProperty) \
+ aSample.mRunningTimes.GetJson##name##unit().apply( \
+ [&writer](const uint64_t& aValue) { \
+ Write##unit(writer, name, aValue); \
+ });
+
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_STREAM)
+
+#undef RUNNING_TIME_STREAM
+}
+
+static void StreamMarkerAfterKind(
+ ProfileBufferEntryReader& aER,
+ ProcessStreamingContext& aProcessStreamingContext) {
+ ThreadStreamingContext* threadData = nullptr;
+ mozilla::base_profiler_markers_detail::DeserializeAfterKindAndStream(
+ aER,
+ [&](ProfilerThreadId aThreadId) -> baseprofiler::SpliceableJSONWriter* {
+ threadData =
+ aProcessStreamingContext.GetThreadStreamingContext(aThreadId);
+ return threadData ? &threadData->mMarkersDataWriter : nullptr;
+ },
+ [&](ProfileChunkedBuffer& aChunkedBuffer) {
+ ProfilerBacktrace backtrace("", &aChunkedBuffer);
+ MOZ_ASSERT(threadData,
+ "threadData should have been set before calling here");
+ backtrace.StreamJSON(threadData->mMarkersDataWriter,
+ aProcessStreamingContext.ProcessStartTime(),
+ *threadData->mUniqueStacks);
+ },
+ [&](mozilla::base_profiler_markers_detail::Streaming::DeserializerTag
+ aTag) {
+ MOZ_ASSERT(threadData,
+ "threadData should have been set before calling here");
+
+ size_t payloadSize = aER.RemainingBytes();
+
+ ProfileBufferEntryReader::DoubleSpanOfConstBytes spans =
+ aER.ReadSpans(payloadSize);
+ if (MOZ_LIKELY(spans.IsSingleSpan())) {
+ // Only a single span, we can just refer to it directly
+ // instead of copying it.
+ profiler::ffi::gecko_profiler_serialize_marker_for_tag(
+ aTag, spans.mFirstOrOnly.Elements(), payloadSize,
+ &threadData->mMarkersDataWriter);
+ } else {
+ // Two spans, we need to concatenate them by copying.
+ uint8_t* payloadBuffer = new uint8_t[payloadSize];
+ spans.CopyBytesTo(payloadBuffer);
+ profiler::ffi::gecko_profiler_serialize_marker_for_tag(
+ aTag, payloadBuffer, payloadSize,
+ &threadData->mMarkersDataWriter);
+ delete[] payloadBuffer;
+ }
+ });
+}
+
+class EntryGetter {
+ public:
+ explicit EntryGetter(
+ ProfileChunkedBuffer::Reader& aReader,
+ mozilla::FailureLatch& aFailureLatch,
+ mozilla::ProgressLogger aProgressLogger = {},
+ uint64_t aInitialReadPos = 0,
+ ProcessStreamingContext* aStreamingContextForMarkers = nullptr)
+ : mFailureLatch(aFailureLatch),
+ mStreamingContextForMarkers(aStreamingContextForMarkers),
+ mBlockIt(
+ aReader.At(ProfileBufferBlockIndex::CreateFromProfileBufferIndex(
+ aInitialReadPos))),
+ mBlockItEnd(aReader.end()),
+ mRangeStart(mBlockIt.BufferRangeStart().ConvertToProfileBufferIndex()),
+ mRangeSize(
+ double(mBlockIt.BufferRangeEnd().ConvertToProfileBufferIndex() -
+ mRangeStart)),
+ mProgressLogger(std::move(aProgressLogger)) {
+ SetLocalProgress(ProgressLogger::NO_LOCATION_UPDATE);
+ if (!ReadLegacyOrEnd()) {
+ // Find and read the next non-legacy entry.
+ Next();
+ }
+ }
+
+ bool Has() const {
+ return (!mFailureLatch.Failed()) && (mBlockIt != mBlockItEnd);
+ }
+
+ const ProfileBufferEntry& Get() const {
+ MOZ_ASSERT(Has() || mFailureLatch.Failed(),
+ "Caller should have checked `Has()` before `Get()`");
+ return mEntry;
+ }
+
+ void Next() {
+ MOZ_ASSERT(Has() || mFailureLatch.Failed(),
+ "Caller should have checked `Has()` before `Next()`");
+ ++mBlockIt;
+ ReadUntilLegacyOrEnd();
+ }
+
+ // Hand off the current iterator to the caller, which may be used to read
+ // any kind of entries (legacy or modern).
+ ProfileChunkedBuffer::BlockIterator Iterator() const { return mBlockIt; }
+
+ // After `Iterator()` was used, we can restart from *after* its updated
+ // position.
+ void RestartAfter(const ProfileChunkedBuffer::BlockIterator& it) {
+ mBlockIt = it;
+ if (!Has()) {
+ return;
+ }
+ Next();
+ }
+
+ ProfileBufferBlockIndex CurBlockIndex() const {
+ return mBlockIt.CurrentBlockIndex();
+ }
+
+ uint64_t CurPos() const {
+ return CurBlockIndex().ConvertToProfileBufferIndex();
+ }
+
+ void SetLocalProgress(const char* aLocation) {
+ mProgressLogger.SetLocalProgress(
+ ProportionValue{double(CurBlockIndex().ConvertToProfileBufferIndex() -
+ mRangeStart) /
+ mRangeSize},
+ aLocation);
+ }
+
+ private:
+ // Try to read the entry at the current `mBlockIt` position.
+ // * If we're at the end of the buffer, just return `true`.
+ // * If there is a "legacy" entry (containing a real `ProfileBufferEntry`),
+ // read it into `mEntry`, and return `true` as well.
+ // * Otherwise the entry contains a "modern" type that cannot be read into
+ // `mEntry`, return `false` (so `EntryGetter` can skip to another entry).
+ bool ReadLegacyOrEnd() {
+ if (!Has()) {
+ return true;
+ }
+ // Read the entry "kind", which is always at the start of all entries.
+ ProfileBufferEntryReader er = *mBlockIt;
+ auto type = static_cast<ProfileBufferEntry::Kind>(
+ er.ReadObject<ProfileBufferEntry::KindUnderlyingType>());
+ MOZ_ASSERT(static_cast<ProfileBufferEntry::KindUnderlyingType>(type) <
+ static_cast<ProfileBufferEntry::KindUnderlyingType>(
+ ProfileBufferEntry::Kind::MODERN_LIMIT));
+ if (type >= ProfileBufferEntry::Kind::LEGACY_LIMIT) {
+ if (type == ProfileBufferEntry::Kind::Marker &&
+ mStreamingContextForMarkers) {
+ StreamMarkerAfterKind(er, *mStreamingContextForMarkers);
+ if (!Has()) {
+ return true;
+ }
+ SetLocalProgress("Processed marker");
+ }
+ er.SetRemainingBytes(0);
+ return false;
+ }
+ // Here, we have a legacy item, we need to read it from the start.
+ // Because the above `ReadObject` moved the reader, we ned to reset it to
+ // the start of the entry before reading the whole entry.
+ er = *mBlockIt;
+ er.ReadBytes(&mEntry, er.RemainingBytes());
+ return true;
+ }
+
+ void ReadUntilLegacyOrEnd() {
+ for (;;) {
+ if (ReadLegacyOrEnd()) {
+ // Either we're at the end, or we could read a legacy entry -> Done.
+ break;
+ }
+ // Otherwise loop around until we hit a legacy entry or the end.
+ ++mBlockIt;
+ }
+ SetLocalProgress(ProgressLogger::NO_LOCATION_UPDATE);
+ }
+
+ mozilla::FailureLatch& mFailureLatch;
+
+ ProcessStreamingContext* const mStreamingContextForMarkers;
+
+ ProfileBufferEntry mEntry;
+ ProfileChunkedBuffer::BlockIterator mBlockIt;
+ const ProfileChunkedBuffer::BlockIterator mBlockItEnd;
+
+ // Progress logger, and the data needed to compute the current relative
+ // position in the buffer.
+ const mozilla::ProfileBufferIndex mRangeStart;
+ const double mRangeSize;
+ mozilla::ProgressLogger mProgressLogger;
+};
+
+// The following grammar shows legal sequences of profile buffer entries.
+// The sequences beginning with a ThreadId entry are known as "samples".
+//
+// (
+// ( /* Samples */
+// ThreadId
+// TimeBeforeCompactStack
+// RunningTimes?
+// UnresponsivenessDurationMs?
+// CompactStack
+// /* internally including:
+// ( NativeLeafAddr
+// | Label FrameFlags? DynamicStringFragment*
+// LineNumber? CategoryPair?
+// | JitReturnAddr
+// )+
+// */
+// )
+// | ( /* Reference to a previous identical sample */
+// ThreadId
+// TimeBeforeSameSample
+// RunningTimes?
+// SameSample
+// )
+// | Marker
+// | ( /* Counters */
+// CounterId
+// Time
+// (
+// CounterKey
+// Count
+// Number?
+// )*
+// )
+// | CollectionStart
+// | CollectionEnd
+// | Pause
+// | Resume
+// | ( ProfilerOverheadTime /* Sampling start timestamp */
+// ProfilerOverheadDuration /* Lock acquisition */
+// ProfilerOverheadDuration /* Expired markers cleaning */
+// ProfilerOverheadDuration /* Counters */
+// ProfilerOverheadDuration /* Threads */
+// )
+// )*
+//
+// The most complicated part is the stack entry sequence that begins with
+// Label. Here are some examples.
+//
+// - ProfilingStack frames without a dynamic string:
+//
+// Label("js::RunScript")
+// CategoryPair(JS::ProfilingCategoryPair::JS)
+//
+// Label("XREMain::XRE_main")
+// LineNumber(4660)
+// CategoryPair(JS::ProfilingCategoryPair::OTHER)
+//
+// Label("ElementRestyler::ComputeStyleChangeFor")
+// LineNumber(3003)
+// CategoryPair(JS::ProfilingCategoryPair::CSS)
+//
+// - ProfilingStack frames with a dynamic string:
+//
+// Label("nsObserverService::NotifyObservers")
+// FrameFlags(uint64_t(ProfilingStackFrame::Flags::IS_LABEL_FRAME))
+// DynamicStringFragment("domwindo")
+// DynamicStringFragment("wopened")
+// LineNumber(291)
+// CategoryPair(JS::ProfilingCategoryPair::OTHER)
+//
+// Label("")
+// FrameFlags(uint64_t(ProfilingStackFrame::Flags::IS_JS_FRAME))
+// DynamicStringFragment("closeWin")
+// DynamicStringFragment("dow (chr")
+// DynamicStringFragment("ome://gl")
+// DynamicStringFragment("obal/con")
+// DynamicStringFragment("tent/glo")
+// DynamicStringFragment("balOverl")
+// DynamicStringFragment("ay.js:5)")
+// DynamicStringFragment("") # this string holds the closing '\0'
+// LineNumber(25)
+// CategoryPair(JS::ProfilingCategoryPair::JS)
+//
+// Label("")
+// FrameFlags(uint64_t(ProfilingStackFrame::Flags::IS_JS_FRAME))
+// DynamicStringFragment("bound (s")
+// DynamicStringFragment("elf-host")
+// DynamicStringFragment("ed:914)")
+// LineNumber(945)
+// CategoryPair(JS::ProfilingCategoryPair::JS)
+//
+// - A profiling stack frame with an overly long dynamic string:
+//
+// Label("")
+// FrameFlags(uint64_t(ProfilingStackFrame::Flags::IS_LABEL_FRAME))
+// DynamicStringFragment("(too lon")
+// DynamicStringFragment("g)")
+// LineNumber(100)
+// CategoryPair(JS::ProfilingCategoryPair::NETWORK)
+//
+// - A wasm JIT frame:
+//
+// Label("")
+// FrameFlags(uint64_t(0))
+// DynamicStringFragment("wasm-fun")
+// DynamicStringFragment("ction[87")
+// DynamicStringFragment("36] (blo")
+// DynamicStringFragment("b:http:/")
+// DynamicStringFragment("/webasse")
+// DynamicStringFragment("mbly.org")
+// DynamicStringFragment("/3dc5759")
+// DynamicStringFragment("4-ce58-4")
+// DynamicStringFragment("626-975b")
+// DynamicStringFragment("-08ad116")
+// DynamicStringFragment("30bc1:38")
+// DynamicStringFragment("29856)")
+//
+// - A JS frame in a synchronous sample:
+//
+// Label("")
+// FrameFlags(uint64_t(ProfilingStackFrame::Flags::IS_LABEL_FRAME))
+// DynamicStringFragment("u (https")
+// DynamicStringFragment("://perf-")
+// DynamicStringFragment("html.io/")
+// DynamicStringFragment("ac0da204")
+// DynamicStringFragment("aaa44d75")
+// DynamicStringFragment("a800.bun")
+// DynamicStringFragment("dle.js:2")
+// DynamicStringFragment("5)")
+
+// Because this is a format entirely internal to the Profiler, any parsing
+// error indicates a bug in the ProfileBuffer writing or the parser itself,
+// or possibly flaky hardware.
+#define ERROR_AND_CONTINUE(msg) \
+ { \
+ fprintf(stderr, "ProfileBuffer parse error: %s", msg); \
+ MOZ_ASSERT(false, msg); \
+ continue; \
+ }
+
+struct StreamingParametersForThread {
+ SpliceableJSONWriter& mWriter;
+ UniqueStacks& mUniqueStacks;
+ ThreadStreamingContext::PreviousStackState& mPreviousStackState;
+ uint32_t& mPreviousStack;
+
+ StreamingParametersForThread(
+ SpliceableJSONWriter& aWriter, UniqueStacks& aUniqueStacks,
+ ThreadStreamingContext::PreviousStackState& aPreviousStackState,
+ uint32_t& aPreviousStack)
+ : mWriter(aWriter),
+ mUniqueStacks(aUniqueStacks),
+ mPreviousStackState(aPreviousStackState),
+ mPreviousStack(aPreviousStack) {}
+};
+
+// GetStreamingParametersForThreadCallback:
+// (ProfilerThreadId) -> Maybe<StreamingParametersForThread>
+template <typename GetStreamingParametersForThreadCallback>
+ProfilerThreadId ProfileBuffer::DoStreamSamplesAndMarkersToJSON(
+ mozilla::FailureLatch& aFailureLatch,
+ GetStreamingParametersForThreadCallback&&
+ aGetStreamingParametersForThreadCallback,
+ double aSinceTime, ProcessStreamingContext* aStreamingContextForMarkers,
+ mozilla::ProgressLogger aProgressLogger) const {
+ UniquePtr<char[]> dynStrBuf = MakeUnique<char[]>(kMaxFrameKeyLength);
+
+ return mEntries.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ MOZ_ASSERT(aReader,
+ "ProfileChunkedBuffer cannot be out-of-session when sampler is "
+ "running");
+
+ ProfilerThreadId processedThreadId;
+
+ EntryGetter e(*aReader, aFailureLatch, std::move(aProgressLogger),
+ /* aInitialReadPos */ 0, aStreamingContextForMarkers);
+
+ for (;;) {
+ // This block skips entries until we find the start of the next sample.
+ // This is useful in three situations.
+ //
+ // - The circular buffer overwrites old entries, so when we start parsing
+ // we might be in the middle of a sample, and we must skip forward to
+ // the start of the next sample.
+ //
+ // - We skip samples that don't have an appropriate ThreadId or Time.
+ //
+ // - We skip range Pause, Resume, CollectionStart, Marker, Counter
+ // and CollectionEnd entries between samples.
+ while (e.Has()) {
+ if (e.Get().IsThreadId()) {
+ break;
+ }
+ e.Next();
+ }
+
+ if (!e.Has()) {
+ break;
+ }
+
+ // Due to the skip_to_next_sample block above, if we have an entry here it
+ // must be a ThreadId entry.
+ MOZ_ASSERT(e.Get().IsThreadId());
+
+ ProfilerThreadId threadId = e.Get().GetThreadId();
+ e.Next();
+
+ Maybe<StreamingParametersForThread> streamingParameters =
+ std::forward<GetStreamingParametersForThreadCallback>(
+ aGetStreamingParametersForThreadCallback)(threadId);
+
+ // Ignore samples that are for the wrong thread.
+ if (!streamingParameters) {
+ continue;
+ }
+
+ SpliceableJSONWriter& writer = streamingParameters->mWriter;
+ UniqueStacks& uniqueStacks = streamingParameters->mUniqueStacks;
+ ThreadStreamingContext::PreviousStackState& previousStackState =
+ streamingParameters->mPreviousStackState;
+ uint32_t& previousStack = streamingParameters->mPreviousStack;
+
+ auto ReadStack = [&](EntryGetter& e, double time, uint64_t entryPosition,
+ const Maybe<double>& unresponsiveDuration,
+ const RunningTimes& runningTimes) {
+ if (writer.Failed()) {
+ return;
+ }
+
+ Maybe<UniqueStacks::StackKey> maybeStack =
+ uniqueStacks.BeginStack(UniqueStacks::FrameKey("(root)"));
+ if (!maybeStack) {
+ writer.SetFailure("BeginStack failure");
+ return;
+ }
+
+ UniqueStacks::StackKey stack = *maybeStack;
+
+ int numFrames = 0;
+ while (e.Has()) {
+ if (e.Get().IsNativeLeafAddr()) {
+ numFrames++;
+
+ void* pc = e.Get().GetPtr();
+ e.Next();
+
+ nsAutoCString functionNameOrAddress =
+ uniqueStacks.FunctionNameOrAddress(pc);
+
+ maybeStack = uniqueStacks.AppendFrame(
+ stack, UniqueStacks::FrameKey(functionNameOrAddress.get()));
+ if (!maybeStack) {
+ writer.SetFailure("AppendFrame failure");
+ return;
+ }
+ stack = *maybeStack;
+
+ } else if (e.Get().IsLabel()) {
+ numFrames++;
+
+ const char* label = e.Get().GetString();
+ e.Next();
+
+ using FrameFlags = js::ProfilingStackFrame::Flags;
+ uint32_t frameFlags = 0;
+ if (e.Has() && e.Get().IsFrameFlags()) {
+ frameFlags = uint32_t(e.Get().GetUint64());
+ e.Next();
+ }
+
+ bool relevantForJS =
+ frameFlags & uint32_t(FrameFlags::RELEVANT_FOR_JS);
+
+ bool isBaselineInterp =
+ frameFlags & uint32_t(FrameFlags::IS_BLINTERP_FRAME);
+
+ // Copy potential dynamic string fragments into dynStrBuf, so that
+ // dynStrBuf will then contain the entire dynamic string.
+ size_t i = 0;
+ dynStrBuf[0] = '\0';
+ while (e.Has()) {
+ if (e.Get().IsDynamicStringFragment()) {
+ char chars[ProfileBufferEntry::kNumChars];
+ e.Get().CopyCharsInto(chars);
+ for (char c : chars) {
+ if (i < kMaxFrameKeyLength) {
+ dynStrBuf[i] = c;
+ i++;
+ }
+ }
+ e.Next();
+ } else {
+ break;
+ }
+ }
+ dynStrBuf[kMaxFrameKeyLength - 1] = '\0';
+ bool hasDynamicString = (i != 0);
+
+ nsAutoCStringN<1024> frameLabel;
+ if (label[0] != '\0' && hasDynamicString) {
+ if (frameFlags & uint32_t(FrameFlags::STRING_TEMPLATE_METHOD)) {
+ frameLabel.AppendPrintf("%s.%s", label, dynStrBuf.get());
+ } else if (frameFlags &
+ uint32_t(FrameFlags::STRING_TEMPLATE_GETTER)) {
+ frameLabel.AppendPrintf("get %s.%s", label, dynStrBuf.get());
+ } else if (frameFlags &
+ uint32_t(FrameFlags::STRING_TEMPLATE_SETTER)) {
+ frameLabel.AppendPrintf("set %s.%s", label, dynStrBuf.get());
+ } else {
+ frameLabel.AppendPrintf("%s %s", label, dynStrBuf.get());
+ }
+ } else if (hasDynamicString) {
+ frameLabel.Append(dynStrBuf.get());
+ } else {
+ frameLabel.Append(label);
+ }
+
+ uint64_t innerWindowID = 0;
+ if (e.Has() && e.Get().IsInnerWindowID()) {
+ innerWindowID = uint64_t(e.Get().GetUint64());
+ e.Next();
+ }
+
+ Maybe<unsigned> line;
+ if (e.Has() && e.Get().IsLineNumber()) {
+ line = Some(unsigned(e.Get().GetInt()));
+ e.Next();
+ }
+
+ Maybe<unsigned> column;
+ if (e.Has() && e.Get().IsColumnNumber()) {
+ column = Some(unsigned(e.Get().GetInt()));
+ e.Next();
+ }
+
+ Maybe<JS::ProfilingCategoryPair> categoryPair;
+ if (e.Has() && e.Get().IsCategoryPair()) {
+ categoryPair =
+ Some(JS::ProfilingCategoryPair(uint32_t(e.Get().GetInt())));
+ e.Next();
+ }
+
+ maybeStack = uniqueStacks.AppendFrame(
+ stack,
+ UniqueStacks::FrameKey(std::move(frameLabel), relevantForJS,
+ isBaselineInterp, innerWindowID, line,
+ column, categoryPair));
+ if (!maybeStack) {
+ writer.SetFailure("AppendFrame failure");
+ return;
+ }
+ stack = *maybeStack;
+
+ } else if (e.Get().IsJitReturnAddr()) {
+ numFrames++;
+
+ // A JIT frame may expand to multiple frames due to inlining.
+ void* pc = e.Get().GetPtr();
+ const Maybe<Vector<UniqueStacks::FrameKey>>& frameKeys =
+ uniqueStacks.LookupFramesForJITAddressFromBufferPos(
+ pc, entryPosition ? entryPosition : e.CurPos());
+ MOZ_RELEASE_ASSERT(
+ frameKeys,
+ "Attempting to stream samples for a buffer range "
+ "for which we don't have JITFrameInfo?");
+ for (const UniqueStacks::FrameKey& frameKey : *frameKeys) {
+ maybeStack = uniqueStacks.AppendFrame(stack, frameKey);
+ if (!maybeStack) {
+ writer.SetFailure("AppendFrame failure");
+ return;
+ }
+ stack = *maybeStack;
+ }
+
+ e.Next();
+
+ } else {
+ break;
+ }
+ }
+
+ // Even if this stack is considered empty, it contains the root frame,
+ // which needs to be in the JSON output because following "same samples"
+ // may refer to it when reusing this sample.mStack.
+ const Maybe<uint32_t> stackIndex =
+ uniqueStacks.GetOrAddStackIndex(stack);
+ if (!stackIndex) {
+ writer.SetFailure("Can't add unique string for stack");
+ return;
+ }
+
+ // And store that possibly-empty stack in case it's followed by "same
+ // sample" entries.
+ previousStack = *stackIndex;
+ previousStackState = (numFrames == 0)
+ ? ThreadStreamingContext::eStackWasEmpty
+ : ThreadStreamingContext::eStackWasNotEmpty;
+
+ // Even if too old or empty, we did process a sample for this thread id.
+ processedThreadId = threadId;
+
+ // Discard samples that are too old.
+ if (time < aSinceTime) {
+ return;
+ }
+
+ if (numFrames == 0 && runningTimes.IsEmpty()) {
+ // It is possible to have empty stacks if native stackwalking is
+ // disabled. Skip samples with empty stacks, unless we have useful
+ // running times.
+ return;
+ }
+
+ WriteSample(writer, ProfileSample{*stackIndex, time,
+ unresponsiveDuration, runningTimes});
+ }; // End of `ReadStack(EntryGetter&)` lambda.
+
+ if (e.Has() && e.Get().IsTime()) {
+ double time = e.Get().GetDouble();
+ e.Next();
+ // Note: Even if this sample is too old (before aSinceTime), we still
+ // need to read it, so that its frames are in the tables, in case there
+ // is a same-sample following it that would be after aSinceTime, which
+ // would need these frames to be present.
+
+ ReadStack(e, time, 0, Nothing{}, RunningTimes{});
+
+ e.SetLocalProgress("Processed sample");
+ } else if (e.Has() && e.Get().IsTimeBeforeCompactStack()) {
+ double time = e.Get().GetDouble();
+ // Note: Even if this sample is too old (before aSinceTime), we still
+ // need to read it, so that its frames are in the tables, in case there
+ // is a same-sample following it that would be after aSinceTime, which
+ // would need these frames to be present.
+
+ RunningTimes runningTimes;
+ Maybe<double> unresponsiveDuration;
+
+ ProfileChunkedBuffer::BlockIterator it = e.Iterator();
+ for (;;) {
+ ++it;
+ if (it.IsAtEnd()) {
+ break;
+ }
+ ProfileBufferEntryReader er = *it;
+ ProfileBufferEntry::Kind kind =
+ er.ReadObject<ProfileBufferEntry::Kind>();
+
+ // There may be running times before the CompactStack.
+ if (kind == ProfileBufferEntry::Kind::RunningTimes) {
+ er.ReadIntoObject(runningTimes);
+ continue;
+ }
+
+ // There may be an UnresponsiveDurationMs before the CompactStack.
+ if (kind == ProfileBufferEntry::Kind::UnresponsiveDurationMs) {
+ unresponsiveDuration = Some(er.ReadObject<double>());
+ continue;
+ }
+
+ if (kind == ProfileBufferEntry::Kind::CompactStack) {
+ ProfileChunkedBuffer tempBuffer(
+ ProfileChunkedBuffer::ThreadSafety::WithoutMutex,
+ WorkerChunkManager());
+ er.ReadIntoObject(tempBuffer);
+ tempBuffer.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ MOZ_ASSERT(aReader,
+ "Local ProfileChunkedBuffer cannot be out-of-session");
+ // This is a compact stack, it should only contain one sample.
+ EntryGetter stackEntryGetter(*aReader, aFailureLatch);
+ ReadStack(stackEntryGetter, time,
+ it.CurrentBlockIndex().ConvertToProfileBufferIndex(),
+ unresponsiveDuration, runningTimes);
+ });
+ WorkerChunkManager().Reset(tempBuffer.GetAllChunks());
+ break;
+ }
+
+ if (kind == ProfileBufferEntry::Kind::Marker &&
+ aStreamingContextForMarkers) {
+ StreamMarkerAfterKind(er, *aStreamingContextForMarkers);
+ continue;
+ }
+
+ MOZ_ASSERT(kind >= ProfileBufferEntry::Kind::LEGACY_LIMIT,
+ "There should be no legacy entries between "
+ "TimeBeforeCompactStack and CompactStack");
+ er.SetRemainingBytes(0);
+ }
+
+ e.RestartAfter(it);
+
+ e.SetLocalProgress("Processed compact sample");
+ } else if (e.Has() && e.Get().IsTimeBeforeSameSample()) {
+ if (previousStackState == ThreadStreamingContext::eNoStackYet) {
+ // We don't have any full sample yet, we cannot duplicate a "previous"
+ // one. This should only happen at most once per thread, for the very
+ // first sample.
+ continue;
+ }
+
+ ProfileSample sample;
+
+ // Keep the same `mStack` as previously output.
+ // Note that it may be empty, this is checked below before writing it.
+ sample.mStack = previousStack;
+
+ sample.mTime = e.Get().GetDouble();
+
+ // Ignore samples that are too old.
+ if (sample.mTime < aSinceTime) {
+ e.Next();
+ continue;
+ }
+
+ sample.mResponsiveness = Nothing{};
+
+ sample.mRunningTimes.Clear();
+
+ ProfileChunkedBuffer::BlockIterator it = e.Iterator();
+ for (;;) {
+ ++it;
+ if (it.IsAtEnd()) {
+ break;
+ }
+ ProfileBufferEntryReader er = *it;
+ ProfileBufferEntry::Kind kind =
+ er.ReadObject<ProfileBufferEntry::Kind>();
+
+ // There may be running times before the SameSample.
+ if (kind == ProfileBufferEntry::Kind::RunningTimes) {
+ er.ReadIntoObject(sample.mRunningTimes);
+ continue;
+ }
+
+ if (kind == ProfileBufferEntry::Kind::SameSample) {
+ if (previousStackState == ThreadStreamingContext::eStackWasEmpty &&
+ sample.mRunningTimes.IsEmpty()) {
+ // Skip samples with empty stacks, unless we have useful running
+ // times.
+ break;
+ }
+ WriteSample(writer, sample);
+ break;
+ }
+
+ if (kind == ProfileBufferEntry::Kind::Marker &&
+ aStreamingContextForMarkers) {
+ StreamMarkerAfterKind(er, *aStreamingContextForMarkers);
+ continue;
+ }
+
+ MOZ_ASSERT(kind >= ProfileBufferEntry::Kind::LEGACY_LIMIT,
+ "There should be no legacy entries between "
+ "TimeBeforeSameSample and SameSample");
+ er.SetRemainingBytes(0);
+ }
+
+ e.RestartAfter(it);
+
+ e.SetLocalProgress("Processed repeated sample");
+ } else {
+ ERROR_AND_CONTINUE("expected a Time entry");
+ }
+ }
+
+ return processedThreadId;
+ });
+}
+
+ProfilerThreadId ProfileBuffer::StreamSamplesToJSON(
+ SpliceableJSONWriter& aWriter, ProfilerThreadId aThreadId,
+ double aSinceTime, UniqueStacks& aUniqueStacks,
+ mozilla::ProgressLogger aProgressLogger) const {
+ ThreadStreamingContext::PreviousStackState previousStackState =
+ ThreadStreamingContext::eNoStackYet;
+ uint32_t stack = 0u;
+#ifdef DEBUG
+ int processedCount = 0;
+#endif // DEBUG
+ return DoStreamSamplesAndMarkersToJSON(
+ aWriter.SourceFailureLatch(),
+ [&](ProfilerThreadId aReadThreadId) {
+ Maybe<StreamingParametersForThread> streamingParameters;
+#ifdef DEBUG
+ ++processedCount;
+ MOZ_ASSERT(
+ aThreadId.IsSpecified() ||
+ (processedCount == 1 && aReadThreadId.IsSpecified()),
+ "Unspecified aThreadId should only be used with 1-sample buffer");
+#endif // DEBUG
+ if (!aThreadId.IsSpecified() || aThreadId == aReadThreadId) {
+ streamingParameters.emplace(aWriter, aUniqueStacks,
+ previousStackState, stack);
+ }
+ return streamingParameters;
+ },
+ aSinceTime, /* aStreamingContextForMarkers */ nullptr,
+ std::move(aProgressLogger));
+}
+
+void ProfileBuffer::StreamSamplesAndMarkersToJSON(
+ ProcessStreamingContext& aProcessStreamingContext,
+ mozilla::ProgressLogger aProgressLogger) const {
+ (void)DoStreamSamplesAndMarkersToJSON(
+ aProcessStreamingContext.SourceFailureLatch(),
+ [&](ProfilerThreadId aReadThreadId) {
+ Maybe<StreamingParametersForThread> streamingParameters;
+ ThreadStreamingContext* threadData =
+ aProcessStreamingContext.GetThreadStreamingContext(aReadThreadId);
+ if (threadData) {
+ streamingParameters.emplace(
+ threadData->mSamplesDataWriter, *threadData->mUniqueStacks,
+ threadData->mPreviousStackState, threadData->mPreviousStack);
+ }
+ return streamingParameters;
+ },
+ aProcessStreamingContext.GetSinceTime(), &aProcessStreamingContext,
+ std::move(aProgressLogger));
+}
+
+void ProfileBuffer::AddJITInfoForRange(
+ uint64_t aRangeStart, ProfilerThreadId aThreadId, JSContext* aContext,
+ JITFrameInfo& aJITFrameInfo,
+ mozilla::ProgressLogger aProgressLogger) const {
+ // We can only process JitReturnAddr entries if we have a JSContext.
+ MOZ_RELEASE_ASSERT(aContext);
+
+ aRangeStart = std::max(aRangeStart, BufferRangeStart());
+ aJITFrameInfo.AddInfoForRange(
+ aRangeStart, BufferRangeEnd(), aContext,
+ [&](const std::function<void(void*)>& aJITAddressConsumer) {
+ // Find all JitReturnAddr entries in the given range for the given
+ // thread, and call aJITAddressConsumer with those addresses.
+
+ mEntries.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ MOZ_ASSERT(aReader,
+ "ProfileChunkedBuffer cannot be out-of-session when "
+ "sampler is running");
+
+ EntryGetter e(*aReader, aJITFrameInfo.LocalFailureLatchSource(),
+ std::move(aProgressLogger), aRangeStart);
+
+ while (true) {
+ // Advance to the next ThreadId entry.
+ while (e.Has() && !e.Get().IsThreadId()) {
+ e.Next();
+ }
+ if (!e.Has()) {
+ break;
+ }
+
+ MOZ_ASSERT(e.Get().IsThreadId());
+ ProfilerThreadId threadId = e.Get().GetThreadId();
+ e.Next();
+
+ // Ignore samples that are for a different thread.
+ if (threadId != aThreadId) {
+ continue;
+ }
+
+ if (e.Has() && e.Get().IsTime()) {
+ // Legacy stack.
+ e.Next();
+ while (e.Has() && !e.Get().IsThreadId()) {
+ if (e.Get().IsJitReturnAddr()) {
+ aJITAddressConsumer(e.Get().GetPtr());
+ }
+ e.Next();
+ }
+ } else if (e.Has() && e.Get().IsTimeBeforeCompactStack()) {
+ // Compact stack.
+ ProfileChunkedBuffer::BlockIterator it = e.Iterator();
+ for (;;) {
+ ++it;
+ if (it.IsAtEnd()) {
+ break;
+ }
+ ProfileBufferEntryReader er = *it;
+ ProfileBufferEntry::Kind kind =
+ er.ReadObject<ProfileBufferEntry::Kind>();
+ if (kind == ProfileBufferEntry::Kind::CompactStack) {
+ ProfileChunkedBuffer tempBuffer(
+ ProfileChunkedBuffer::ThreadSafety::WithoutMutex,
+ WorkerChunkManager());
+ er.ReadIntoObject(tempBuffer);
+ tempBuffer.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ MOZ_ASSERT(
+ aReader,
+ "Local ProfileChunkedBuffer cannot be out-of-session");
+ EntryGetter stackEntryGetter(
+ *aReader, aJITFrameInfo.LocalFailureLatchSource());
+ while (stackEntryGetter.Has()) {
+ if (stackEntryGetter.Get().IsJitReturnAddr()) {
+ aJITAddressConsumer(stackEntryGetter.Get().GetPtr());
+ }
+ stackEntryGetter.Next();
+ }
+ });
+ WorkerChunkManager().Reset(tempBuffer.GetAllChunks());
+ break;
+ }
+
+ MOZ_ASSERT(kind >= ProfileBufferEntry::Kind::LEGACY_LIMIT,
+ "There should be no legacy entries between "
+ "TimeBeforeCompactStack and CompactStack");
+ er.SetRemainingBytes(0);
+ }
+
+ e.Next();
+ } else if (e.Has() && e.Get().IsTimeBeforeSameSample()) {
+ // Sample index, nothing to do.
+
+ } else {
+ ERROR_AND_CONTINUE("expected a Time entry");
+ }
+ }
+ });
+ });
+}
+
+void ProfileBuffer::StreamMarkersToJSON(
+ SpliceableJSONWriter& aWriter, ProfilerThreadId aThreadId,
+ const TimeStamp& aProcessStartTime, double aSinceTime,
+ UniqueStacks& aUniqueStacks,
+ mozilla::ProgressLogger aProgressLogger) const {
+ mEntries.ReadEach([&](ProfileBufferEntryReader& aER) {
+ auto type = static_cast<ProfileBufferEntry::Kind>(
+ aER.ReadObject<ProfileBufferEntry::KindUnderlyingType>());
+ MOZ_ASSERT(static_cast<ProfileBufferEntry::KindUnderlyingType>(type) <
+ static_cast<ProfileBufferEntry::KindUnderlyingType>(
+ ProfileBufferEntry::Kind::MODERN_LIMIT));
+ if (type == ProfileBufferEntry::Kind::Marker) {
+ mozilla::base_profiler_markers_detail::DeserializeAfterKindAndStream(
+ aER,
+ [&](const ProfilerThreadId& aMarkerThreadId) {
+ return (!aThreadId.IsSpecified() || aMarkerThreadId == aThreadId)
+ ? &aWriter
+ : nullptr;
+ },
+ [&](ProfileChunkedBuffer& aChunkedBuffer) {
+ ProfilerBacktrace backtrace("", &aChunkedBuffer);
+ backtrace.StreamJSON(aWriter, aProcessStartTime, aUniqueStacks);
+ },
+ [&](mozilla::base_profiler_markers_detail::Streaming::DeserializerTag
+ aTag) {
+ size_t payloadSize = aER.RemainingBytes();
+
+ ProfileBufferEntryReader::DoubleSpanOfConstBytes spans =
+ aER.ReadSpans(payloadSize);
+ if (MOZ_LIKELY(spans.IsSingleSpan())) {
+ // Only a single span, we can just refer to it directly
+ // instead of copying it.
+ profiler::ffi::gecko_profiler_serialize_marker_for_tag(
+ aTag, spans.mFirstOrOnly.Elements(), payloadSize, &aWriter);
+ } else {
+ // Two spans, we need to concatenate them by copying.
+ uint8_t* payloadBuffer = new uint8_t[payloadSize];
+ spans.CopyBytesTo(payloadBuffer);
+ profiler::ffi::gecko_profiler_serialize_marker_for_tag(
+ aTag, payloadBuffer, payloadSize, &aWriter);
+ delete[] payloadBuffer;
+ }
+ });
+ } else {
+ // The entry was not a marker, we need to skip to the end.
+ aER.SetRemainingBytes(0);
+ }
+ });
+}
+
+void ProfileBuffer::StreamProfilerOverheadToJSON(
+ SpliceableJSONWriter& aWriter, const TimeStamp& aProcessStartTime,
+ double aSinceTime, mozilla::ProgressLogger aProgressLogger) const {
+ mEntries.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ MOZ_ASSERT(aReader,
+ "ProfileChunkedBuffer cannot be out-of-session when sampler is "
+ "running");
+
+ EntryGetter e(*aReader, aWriter.SourceFailureLatch(),
+ std::move(aProgressLogger));
+
+ enum Schema : uint32_t {
+ TIME = 0,
+ LOCKING = 1,
+ MARKER_CLEANING = 2,
+ COUNTERS = 3,
+ THREADS = 4
+ };
+
+ aWriter.StartObjectProperty("profilerOverhead");
+ aWriter.StartObjectProperty("samples");
+ // Stream all sampling overhead data. We skip other entries, because we
+ // process them in StreamSamplesToJSON()/etc.
+ {
+ JSONSchemaWriter schema(aWriter);
+ schema.WriteField("time");
+ schema.WriteField("locking");
+ schema.WriteField("expiredMarkerCleaning");
+ schema.WriteField("counters");
+ schema.WriteField("threads");
+ }
+
+ aWriter.StartArrayProperty("data");
+ double firstTime = 0.0;
+ double lastTime = 0.0;
+ ProfilerStats intervals, overheads, lockings, cleanings, counters, threads;
+ while (e.Has()) {
+ // valid sequence: ProfilerOverheadTime, ProfilerOverheadDuration * 4
+ if (e.Get().IsProfilerOverheadTime()) {
+ double time = e.Get().GetDouble();
+ if (time >= aSinceTime) {
+ e.Next();
+ if (!e.Has() || !e.Get().IsProfilerOverheadDuration()) {
+ ERROR_AND_CONTINUE(
+ "expected a ProfilerOverheadDuration entry after "
+ "ProfilerOverheadTime");
+ }
+ double locking = e.Get().GetDouble();
+ e.Next();
+ if (!e.Has() || !e.Get().IsProfilerOverheadDuration()) {
+ ERROR_AND_CONTINUE(
+ "expected a ProfilerOverheadDuration entry after "
+ "ProfilerOverheadTime,ProfilerOverheadDuration");
+ }
+ double cleaning = e.Get().GetDouble();
+ e.Next();
+ if (!e.Has() || !e.Get().IsProfilerOverheadDuration()) {
+ ERROR_AND_CONTINUE(
+ "expected a ProfilerOverheadDuration entry after "
+ "ProfilerOverheadTime,ProfilerOverheadDuration*2");
+ }
+ double counter = e.Get().GetDouble();
+ e.Next();
+ if (!e.Has() || !e.Get().IsProfilerOverheadDuration()) {
+ ERROR_AND_CONTINUE(
+ "expected a ProfilerOverheadDuration entry after "
+ "ProfilerOverheadTime,ProfilerOverheadDuration*3");
+ }
+ double thread = e.Get().GetDouble();
+
+ if (firstTime == 0.0) {
+ firstTime = time;
+ } else {
+ // Note that we'll have 1 fewer interval than other numbers (because
+ // we need both ends of an interval to know its duration). The final
+ // difference should be insignificant over the expected many
+ // thousands of iterations.
+ intervals.Count(time - lastTime);
+ }
+ lastTime = time;
+ overheads.Count(locking + cleaning + counter + thread);
+ lockings.Count(locking);
+ cleanings.Count(cleaning);
+ counters.Count(counter);
+ threads.Count(thread);
+
+ AutoArraySchemaWriter writer(aWriter);
+ writer.TimeMsElement(TIME, time);
+ writer.DoubleElement(LOCKING, locking);
+ writer.DoubleElement(MARKER_CLEANING, cleaning);
+ writer.DoubleElement(COUNTERS, counter);
+ writer.DoubleElement(THREADS, thread);
+ }
+ }
+ e.Next();
+ }
+ aWriter.EndArray(); // data
+ aWriter.EndObject(); // samples
+
+ // Only output statistics if there is at least one full interval (and
+ // therefore at least two samplings.)
+ if (intervals.n > 0) {
+ aWriter.StartObjectProperty("statistics");
+ aWriter.DoubleProperty("profiledDuration", lastTime - firstTime);
+ aWriter.IntProperty("samplingCount", overheads.n);
+ aWriter.DoubleProperty("overheadDurations", overheads.sum);
+ aWriter.DoubleProperty("overheadPercentage",
+ overheads.sum / (lastTime - firstTime));
+#define PROFILER_STATS(name, var) \
+ aWriter.DoubleProperty("mean" name, (var).sum / (var).n); \
+ aWriter.DoubleProperty("min" name, (var).min); \
+ aWriter.DoubleProperty("max" name, (var).max);
+ PROFILER_STATS("Interval", intervals);
+ PROFILER_STATS("Overhead", overheads);
+ PROFILER_STATS("Lockings", lockings);
+ PROFILER_STATS("Cleaning", cleanings);
+ PROFILER_STATS("Counter", counters);
+ PROFILER_STATS("Thread", threads);
+#undef PROFILER_STATS
+ aWriter.EndObject(); // statistics
+ }
+ aWriter.EndObject(); // profilerOverhead
+ });
+}
+
+struct CounterKeyedSample {
+ double mTime;
+ uint64_t mNumber;
+ int64_t mCount;
+};
+
+using CounterKeyedSamples = Vector<CounterKeyedSample>;
+
+static LazyLogModule sFuzzyfoxLog("Fuzzyfox");
+
+using CounterMap = HashMap<uint64_t, CounterKeyedSamples>;
+
+// HashMap lookup, if not found, a default value is inserted.
+// Returns reference to (existing or new) value inside the HashMap.
+template <typename HashM, typename Key>
+static auto& LookupOrAdd(HashM& aMap, Key&& aKey) {
+ auto addPtr = aMap.lookupForAdd(aKey);
+ if (!addPtr) {
+ MOZ_RELEASE_ASSERT(aMap.add(addPtr, std::forward<Key>(aKey),
+ typename HashM::Entry::ValueType{}));
+ MOZ_ASSERT(!!addPtr);
+ }
+ return addPtr->value();
+}
+
+void ProfileBuffer::StreamCountersToJSON(
+ SpliceableJSONWriter& aWriter, const TimeStamp& aProcessStartTime,
+ double aSinceTime, mozilla::ProgressLogger aProgressLogger) const {
+ // Because this is a format entirely internal to the Profiler, any parsing
+ // error indicates a bug in the ProfileBuffer writing or the parser itself,
+ // or possibly flaky hardware.
+
+ mEntries.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ MOZ_ASSERT(aReader,
+ "ProfileChunkedBuffer cannot be out-of-session when sampler is "
+ "running");
+
+ EntryGetter e(*aReader, aWriter.SourceFailureLatch(),
+ std::move(aProgressLogger));
+
+ enum Schema : uint32_t { TIME = 0, COUNT = 1, NUMBER = 2 };
+
+ // Stream all counters. We skip other entries, because we process them in
+ // StreamSamplesToJSON()/etc.
+ //
+ // Valid sequence in the buffer:
+ // CounterID
+ // Time
+ // ( CounterKey Count Number? )*
+ //
+ // And the JSON (example):
+ // "counters": {
+ // "name": "malloc",
+ // "category": "Memory",
+ // "description": "Amount of allocated memory",
+ // "sample_groups": {
+ // "id": 0,
+ // "samples": {
+ // "schema": {"time": 0, "number": 1, "count": 2},
+ // "data": [
+ // [
+ // 16117.033968000002,
+ // 2446216,
+ // 6801320
+ // ],
+ // [
+ // 16118.037638,
+ // 2446216,
+ // 6801320
+ // ],
+ // ],
+ // }
+ // }
+ // },
+
+ // Build the map of counters and populate it
+ HashMap<void*, CounterMap> counters;
+
+ while (e.Has()) {
+ // skip all non-Counters, including if we start in the middle of a counter
+ if (e.Get().IsCounterId()) {
+ void* id = e.Get().GetPtr();
+ CounterMap& counter = LookupOrAdd(counters, id);
+ e.Next();
+ if (!e.Has() || !e.Get().IsTime()) {
+ ERROR_AND_CONTINUE("expected a Time entry");
+ }
+ double time = e.Get().GetDouble();
+ e.Next();
+ if (time >= aSinceTime) {
+ while (e.Has() && e.Get().IsCounterKey()) {
+ uint64_t key = e.Get().GetUint64();
+ CounterKeyedSamples& data = LookupOrAdd(counter, key);
+ e.Next();
+ if (!e.Has() || !e.Get().IsCount()) {
+ ERROR_AND_CONTINUE("expected a Count entry");
+ }
+ int64_t count = e.Get().GetUint64();
+ e.Next();
+ uint64_t number;
+ if (!e.Has() || !e.Get().IsNumber()) {
+ number = 0;
+ } else {
+ number = e.Get().GetInt64();
+ e.Next();
+ }
+ CounterKeyedSample sample = {time, number, count};
+ MOZ_RELEASE_ASSERT(data.append(sample));
+ }
+ } else {
+ // skip counter sample - only need to skip the initial counter
+ // id, then let the loop at the top skip the rest
+ }
+ } else {
+ e.Next();
+ }
+ }
+ // we have a map of a map of counter entries; dump them to JSON
+ if (counters.count() == 0) {
+ return;
+ }
+
+ aWriter.StartArrayProperty("counters");
+ for (auto iter = counters.iter(); !iter.done(); iter.next()) {
+ CounterMap& counter = iter.get().value();
+ const BaseProfilerCount* base_counter =
+ static_cast<const BaseProfilerCount*>(iter.get().key());
+
+ aWriter.Start();
+ aWriter.StringProperty("name", MakeStringSpan(base_counter->mLabel));
+ aWriter.StringProperty("category",
+ MakeStringSpan(base_counter->mCategory));
+ aWriter.StringProperty("description",
+ MakeStringSpan(base_counter->mDescription));
+
+ aWriter.StartArrayProperty("sample_groups");
+ for (auto counter_iter = counter.iter(); !counter_iter.done();
+ counter_iter.next()) {
+ CounterKeyedSamples& samples = counter_iter.get().value();
+ uint64_t key = counter_iter.get().key();
+
+ size_t size = samples.length();
+ if (size == 0) {
+ continue;
+ }
+
+ bool hasNumber = false;
+ for (size_t i = 0; i < size; i++) {
+ if (samples[i].mNumber != 0) {
+ hasNumber = true;
+ break;
+ }
+ }
+
+ aWriter.StartObjectElement();
+ {
+ aWriter.IntProperty("id", static_cast<int64_t>(key));
+ aWriter.StartObjectProperty("samples");
+ {
+ JSONSchemaWriter schema(aWriter);
+ schema.WriteField("time");
+ schema.WriteField("count");
+ if (hasNumber) {
+ schema.WriteField("number");
+ }
+ }
+
+ aWriter.StartArrayProperty("data");
+ double previousSkippedTime = 0.0;
+ uint64_t previousNumber = 0;
+ int64_t previousCount = 0;
+ for (size_t i = 0; i < size; i++) {
+ // Encode as deltas, and only encode if different than the previous
+ // or next sample; Always write the first and last samples.
+ if (i == 0 || i == size - 1 ||
+ samples[i].mNumber != previousNumber ||
+ samples[i].mCount != previousCount ||
+ // Ensure we ouput the first 0 before skipping samples.
+ (i >= 2 && (samples[i - 2].mNumber != previousNumber ||
+ samples[i - 2].mCount != previousCount))) {
+ if (i != 0 && samples[i].mTime >= samples[i - 1].mTime) {
+ MOZ_LOG(sFuzzyfoxLog, mozilla::LogLevel::Error,
+ ("Fuzzyfox Profiler Assertion: %f >= %f",
+ samples[i].mTime, samples[i - 1].mTime));
+ }
+ MOZ_ASSERT(i == 0 || samples[i].mTime >= samples[i - 1].mTime);
+ MOZ_ASSERT(samples[i].mNumber >= previousNumber);
+ MOZ_ASSERT(samples[i].mNumber - previousNumber <=
+ uint64_t(std::numeric_limits<int64_t>::max()));
+
+ int64_t numberDelta =
+ static_cast<int64_t>(samples[i].mNumber - previousNumber);
+ int64_t countDelta = samples[i].mCount - previousCount;
+
+ if (previousSkippedTime != 0.0 &&
+ (numberDelta != 0 || countDelta != 0)) {
+ // Write the last skipped sample, unless the new one is all
+ // zeroes (that'd be redundant) This is useful to know when a
+ // certain value was last sampled, so that the front-end graph
+ // will be more correct.
+ AutoArraySchemaWriter writer(aWriter);
+ writer.TimeMsElement(TIME, previousSkippedTime);
+ // The deltas are effectively zeroes, since no change happened
+ // between the last actually-written sample and the last skipped
+ // one.
+ writer.IntElement(COUNT, 0);
+ if (hasNumber) {
+ writer.IntElement(NUMBER, 0);
+ }
+ }
+
+ AutoArraySchemaWriter writer(aWriter);
+ writer.TimeMsElement(TIME, samples[i].mTime);
+ writer.IntElement(COUNT, countDelta);
+ if (hasNumber) {
+ writer.IntElement(NUMBER, numberDelta);
+ }
+
+ previousSkippedTime = 0.0;
+ previousNumber = samples[i].mNumber;
+ previousCount = samples[i].mCount;
+ } else {
+ previousSkippedTime = samples[i].mTime;
+ }
+ }
+ aWriter.EndArray(); // data
+ aWriter.EndObject(); // samples
+ }
+ aWriter.EndObject(); // sample_groups item
+ }
+ aWriter.EndArray(); // sample groups
+ aWriter.End(); // for each counter
+ }
+ aWriter.EndArray(); // counters
+ });
+}
+
+#undef ERROR_AND_CONTINUE
+
+static void AddPausedRange(SpliceableJSONWriter& aWriter, const char* aReason,
+ const Maybe<double>& aStartTime,
+ const Maybe<double>& aEndTime) {
+ aWriter.Start();
+ if (aStartTime) {
+ aWriter.TimeDoubleMsProperty("startTime", *aStartTime);
+ } else {
+ aWriter.NullProperty("startTime");
+ }
+ if (aEndTime) {
+ aWriter.TimeDoubleMsProperty("endTime", *aEndTime);
+ } else {
+ aWriter.NullProperty("endTime");
+ }
+ aWriter.StringProperty("reason", MakeStringSpan(aReason));
+ aWriter.End();
+}
+
+void ProfileBuffer::StreamPausedRangesToJSON(
+ SpliceableJSONWriter& aWriter, double aSinceTime,
+ mozilla::ProgressLogger aProgressLogger) const {
+ mEntries.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ MOZ_ASSERT(aReader,
+ "ProfileChunkedBuffer cannot be out-of-session when sampler is "
+ "running");
+
+ EntryGetter e(*aReader, aWriter.SourceFailureLatch(),
+ aProgressLogger.CreateSubLoggerFromTo(
+ 1_pc, "Streaming pauses...", 99_pc, "Streamed pauses"));
+
+ Maybe<double> currentPauseStartTime;
+ Maybe<double> currentCollectionStartTime;
+
+ while (e.Has()) {
+ if (e.Get().IsPause()) {
+ currentPauseStartTime = Some(e.Get().GetDouble());
+ } else if (e.Get().IsResume()) {
+ AddPausedRange(aWriter, "profiler-paused", currentPauseStartTime,
+ Some(e.Get().GetDouble()));
+ currentPauseStartTime = Nothing();
+ } else if (e.Get().IsCollectionStart()) {
+ currentCollectionStartTime = Some(e.Get().GetDouble());
+ } else if (e.Get().IsCollectionEnd()) {
+ AddPausedRange(aWriter, "collecting", currentCollectionStartTime,
+ Some(e.Get().GetDouble()));
+ currentCollectionStartTime = Nothing();
+ }
+ e.Next();
+ }
+
+ if (currentPauseStartTime) {
+ AddPausedRange(aWriter, "profiler-paused", currentPauseStartTime,
+ Nothing());
+ }
+ if (currentCollectionStartTime) {
+ AddPausedRange(aWriter, "collecting", currentCollectionStartTime,
+ Nothing());
+ }
+ });
+}
+
+bool ProfileBuffer::DuplicateLastSample(ProfilerThreadId aThreadId,
+ double aSampleTimeMs,
+ Maybe<uint64_t>& aLastSample,
+ const RunningTimes& aRunningTimes) {
+ if (!aLastSample) {
+ return false;
+ }
+
+ if (mEntries.IsIndexInCurrentChunk(ProfileBufferIndex{*aLastSample})) {
+ // The last (fully-written) sample is in this chunk, we can refer to it.
+
+ // Note that between now and when we write the SameSample below, another
+ // chunk could have been started, so the SameSample will in fact refer to a
+ // block in a previous chunk. This is okay, because:
+ // - When serializing to JSON, if that chunk is still there, we'll still be
+ // able to find that old stack, so nothing will be lost.
+ // - If unfortunately that chunk has been destroyed, we will lose this
+ // sample. But this will only happen to the first sample (per thread) in
+ // in the whole JSON output, because the next time we're here to duplicate
+ // the same sample again, IsIndexInCurrentChunk will say `false` and we
+ // will fall back to the normal copy or even re-sample. Losing the first
+ // sample out of many in a whole recording is acceptable.
+ //
+ // |---| = chunk, S = Sample, D = Duplicate, s = same sample
+ // |---S-s-s--| |s-D--s--s-| |s-D--s---s|
+ // Later, the first chunk is destroyed/recycled:
+ // |s-D--s--s-| |s-D--s---s| |-...
+ // Output: ^ ^ ^ ^
+ // `-|--|-------|--- Same but no previous -> lost.
+ // `--|-------|--- Full duplicate sample.
+ // `-------|--- Same with previous -> okay.
+ // `--- Same but now we have a previous -> okay!
+
+ AUTO_PROFILER_STATS(DuplicateLastSample_SameSample);
+
+ // Add the thread id first. We don't update `aLastSample` because we are not
+ // writing a full sample.
+ (void)AddThreadIdEntry(aThreadId);
+
+ // Copy the new time, to be followed by a SameSample.
+ AddEntry(ProfileBufferEntry::TimeBeforeSameSample(aSampleTimeMs));
+
+ // Add running times if they have data.
+ if (!aRunningTimes.IsEmpty()) {
+ mEntries.PutObjects(ProfileBufferEntry::Kind::RunningTimes,
+ aRunningTimes);
+ }
+
+ // Finish with a SameSample entry.
+ mEntries.PutObjects(ProfileBufferEntry::Kind::SameSample);
+
+ return true;
+ }
+
+ AUTO_PROFILER_STATS(DuplicateLastSample_copy);
+
+ ProfileChunkedBuffer tempBuffer(
+ ProfileChunkedBuffer::ThreadSafety::WithoutMutex, WorkerChunkManager());
+
+ auto retrieveWorkerChunk = MakeScopeExit(
+ [&]() { WorkerChunkManager().Reset(tempBuffer.GetAllChunks()); });
+
+ const bool ok = mEntries.Read([&](ProfileChunkedBuffer::Reader* aReader) {
+ MOZ_ASSERT(aReader,
+ "ProfileChunkedBuffer cannot be out-of-session when sampler is "
+ "running");
+
+ // DuplicateLastSample is only called during profiling, so we don't need a
+ // progress logger (only useful when capturing the final profile).
+ EntryGetter e(*aReader, mozilla::FailureLatchInfallibleSource::Singleton(),
+ ProgressLogger{}, *aLastSample);
+
+ if (e.CurPos() != *aLastSample) {
+ // The last sample is no longer within the buffer range, so we cannot
+ // use it. Reset the stored buffer position to Nothing().
+ aLastSample.reset();
+ return false;
+ }
+
+ MOZ_RELEASE_ASSERT(e.Has() && e.Get().IsThreadId() &&
+ e.Get().GetThreadId() == aThreadId);
+
+ e.Next();
+
+ // Go through the whole entry and duplicate it, until we find the next
+ // one.
+ while (e.Has()) {
+ switch (e.Get().GetKind()) {
+ case ProfileBufferEntry::Kind::Pause:
+ case ProfileBufferEntry::Kind::Resume:
+ case ProfileBufferEntry::Kind::PauseSampling:
+ case ProfileBufferEntry::Kind::ResumeSampling:
+ case ProfileBufferEntry::Kind::CollectionStart:
+ case ProfileBufferEntry::Kind::CollectionEnd:
+ case ProfileBufferEntry::Kind::ThreadId:
+ case ProfileBufferEntry::Kind::TimeBeforeSameSample:
+ // We're done.
+ return true;
+ case ProfileBufferEntry::Kind::Time:
+ // Copy with new time
+ AddEntry(tempBuffer, ProfileBufferEntry::Time(aSampleTimeMs));
+ break;
+ case ProfileBufferEntry::Kind::TimeBeforeCompactStack: {
+ // Copy with new time, followed by a compact stack.
+ AddEntry(tempBuffer,
+ ProfileBufferEntry::TimeBeforeCompactStack(aSampleTimeMs));
+
+ // Add running times if they have data.
+ if (!aRunningTimes.IsEmpty()) {
+ tempBuffer.PutObjects(ProfileBufferEntry::Kind::RunningTimes,
+ aRunningTimes);
+ }
+
+ // The `CompactStack` *must* be present afterwards, but may not
+ // immediately follow `TimeBeforeCompactStack` (e.g., some markers
+ // could be written in-between), so we need to look for it in the
+ // following entries.
+ ProfileChunkedBuffer::BlockIterator it = e.Iterator();
+ for (;;) {
+ ++it;
+ if (it.IsAtEnd()) {
+ break;
+ }
+ ProfileBufferEntryReader er = *it;
+ auto kind = static_cast<ProfileBufferEntry::Kind>(
+ er.ReadObject<ProfileBufferEntry::KindUnderlyingType>());
+ MOZ_ASSERT(
+ static_cast<ProfileBufferEntry::KindUnderlyingType>(kind) <
+ static_cast<ProfileBufferEntry::KindUnderlyingType>(
+ ProfileBufferEntry::Kind::MODERN_LIMIT));
+ if (kind == ProfileBufferEntry::Kind::CompactStack) {
+ // Found our CompactStack, just make a copy of the whole entry.
+ er = *it;
+ auto bytes = er.RemainingBytes();
+ MOZ_ASSERT(bytes <
+ ProfileBufferChunkManager::scExpectedMaximumStackSize);
+ tempBuffer.Put(bytes, [&](Maybe<ProfileBufferEntryWriter>& aEW) {
+ MOZ_ASSERT(aEW.isSome(), "tempBuffer cannot be out-of-session");
+ aEW->WriteFromReader(er, bytes);
+ });
+ // CompactStack marks the end, we're done.
+ break;
+ }
+
+ MOZ_ASSERT(kind >= ProfileBufferEntry::Kind::LEGACY_LIMIT,
+ "There should be no legacy entries between "
+ "TimeBeforeCompactStack and CompactStack");
+ er.SetRemainingBytes(0);
+ // Here, we have encountered a non-legacy entry that was not the
+ // CompactStack we're looking for; just continue the search...
+ }
+ // We're done.
+ return true;
+ }
+ case ProfileBufferEntry::Kind::CounterKey:
+ case ProfileBufferEntry::Kind::Number:
+ case ProfileBufferEntry::Kind::Count:
+ // Don't copy anything not part of a thread's stack sample
+ break;
+ case ProfileBufferEntry::Kind::CounterId:
+ // CounterId is normally followed by Time - if so, we'd like
+ // to skip it. If we duplicate Time, it won't hurt anything, just
+ // waste buffer space (and this can happen if the CounterId has
+ // fallen off the end of the buffer, but Time (and Number/Count)
+ // are still in the buffer).
+ e.Next();
+ if (e.Has() && e.Get().GetKind() != ProfileBufferEntry::Kind::Time) {
+ // this would only happen if there was an invalid sequence
+ // in the buffer. Don't skip it.
+ continue;
+ }
+ // we've skipped Time
+ break;
+ case ProfileBufferEntry::Kind::ProfilerOverheadTime:
+ // ProfilerOverheadTime is normally followed by
+ // ProfilerOverheadDuration*4 - if so, we'd like to skip it. Don't
+ // duplicate, as we are in the middle of a sampling and will soon
+ // capture its own overhead.
+ e.Next();
+ // A missing Time would only happen if there was an invalid
+ // sequence in the buffer. Don't skip unexpected entry.
+ if (e.Has() &&
+ e.Get().GetKind() !=
+ ProfileBufferEntry::Kind::ProfilerOverheadDuration) {
+ continue;
+ }
+ e.Next();
+ if (e.Has() &&
+ e.Get().GetKind() !=
+ ProfileBufferEntry::Kind::ProfilerOverheadDuration) {
+ continue;
+ }
+ e.Next();
+ if (e.Has() &&
+ e.Get().GetKind() !=
+ ProfileBufferEntry::Kind::ProfilerOverheadDuration) {
+ continue;
+ }
+ e.Next();
+ if (e.Has() &&
+ e.Get().GetKind() !=
+ ProfileBufferEntry::Kind::ProfilerOverheadDuration) {
+ continue;
+ }
+ // we've skipped ProfilerOverheadTime and
+ // ProfilerOverheadDuration*4.
+ break;
+ default: {
+ // Copy anything else we don't know about.
+ AddEntry(tempBuffer, e.Get());
+ break;
+ }
+ }
+ e.Next();
+ }
+ return true;
+ });
+
+ if (!ok) {
+ return false;
+ }
+
+ // If the buffer was big enough, there won't be any cleared blocks.
+ if (tempBuffer.GetState().mClearedBlockCount != 0) {
+ // No need to try to read stack again as it won't fit. Reset the stored
+ // buffer position to Nothing().
+ aLastSample.reset();
+ return false;
+ }
+
+ aLastSample = Some(AddThreadIdEntry(aThreadId));
+
+ mEntries.AppendContents(tempBuffer);
+
+ return true;
+}
+
+void ProfileBuffer::DiscardSamplesBeforeTime(double aTime) {
+ // This function does nothing!
+ // The duration limit will be removed from Firefox, see bug 1632365.
+ Unused << aTime;
+}
+
+// END ProfileBuffer
+////////////////////////////////////////////////////////////////////////
diff --git a/tools/profiler/core/ProfileBufferEntry.h b/tools/profiler/core/ProfileBufferEntry.h
new file mode 100644
index 0000000000..bfee4923a3
--- /dev/null
+++ b/tools/profiler/core/ProfileBufferEntry.h
@@ -0,0 +1,532 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef ProfileBufferEntry_h
+#define ProfileBufferEntry_h
+
+#include <cstdint>
+#include <cstdlib>
+#include <functional>
+#include <utility>
+#include <type_traits>
+#include "gtest/MozGtestFriend.h"
+#include "js/ProfilingCategory.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/HashFunctions.h"
+#include "mozilla/HashTable.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/ProfileBufferEntryKinds.h"
+#include "mozilla/ProfileJSONWriter.h"
+#include "mozilla/ProfilerUtils.h"
+#include "mozilla/UniquePtrExtensions.h"
+#include "mozilla/Variant.h"
+#include "mozilla/Vector.h"
+#include "nsString.h"
+
+class ProfilerCodeAddressService;
+struct JSContext;
+
+class ProfileBufferEntry {
+ public:
+ using KindUnderlyingType =
+ std::underlying_type_t<::mozilla::ProfileBufferEntryKind>;
+ using Kind = mozilla::ProfileBufferEntryKind;
+
+ ProfileBufferEntry();
+
+ static constexpr size_t kNumChars = mozilla::ProfileBufferEntryNumChars;
+
+ private:
+ // aString must be a static string.
+ ProfileBufferEntry(Kind aKind, const char* aString);
+ ProfileBufferEntry(Kind aKind, char aChars[kNumChars]);
+ ProfileBufferEntry(Kind aKind, void* aPtr);
+ ProfileBufferEntry(Kind aKind, double aDouble);
+ ProfileBufferEntry(Kind aKind, int64_t aInt64);
+ ProfileBufferEntry(Kind aKind, uint64_t aUint64);
+ ProfileBufferEntry(Kind aKind, int aInt);
+ ProfileBufferEntry(Kind aKind, ProfilerThreadId aThreadId);
+
+ public:
+#define CTOR(KIND, TYPE, SIZE) \
+ static ProfileBufferEntry KIND(TYPE aVal) { \
+ return ProfileBufferEntry(Kind::KIND, aVal); \
+ }
+ FOR_EACH_PROFILE_BUFFER_ENTRY_KIND(CTOR)
+#undef CTOR
+
+ Kind GetKind() const { return mKind; }
+
+#define IS_KIND(KIND, TYPE, SIZE) \
+ bool Is##KIND() const { return mKind == Kind::KIND; }
+ FOR_EACH_PROFILE_BUFFER_ENTRY_KIND(IS_KIND)
+#undef IS_KIND
+
+ private:
+ FRIEND_TEST(ThreadProfile, InsertOneEntry);
+ FRIEND_TEST(ThreadProfile, InsertOneEntryWithTinyBuffer);
+ FRIEND_TEST(ThreadProfile, InsertEntriesNoWrap);
+ FRIEND_TEST(ThreadProfile, InsertEntriesWrap);
+ FRIEND_TEST(ThreadProfile, MemoryMeasure);
+ friend class ProfileBuffer;
+
+ Kind mKind;
+ uint8_t mStorage[kNumChars];
+
+ const char* GetString() const;
+ void* GetPtr() const;
+ double GetDouble() const;
+ int GetInt() const;
+ int64_t GetInt64() const;
+ uint64_t GetUint64() const;
+ ProfilerThreadId GetThreadId() const;
+ void CopyCharsInto(char (&aOutArray)[kNumChars]) const;
+};
+
+// Packed layout: 1 byte for the tag + 8 bytes for the value.
+static_assert(sizeof(ProfileBufferEntry) == 9, "bad ProfileBufferEntry size");
+
+// Contains all the information about JIT frames that is needed to stream stack
+// frames for JitReturnAddr entries in the profiler buffer.
+// Every return address (void*) is mapped to one or more JITFrameKeys, and
+// every JITFrameKey is mapped to a JSON string for that frame.
+// mRangeStart and mRangeEnd describe the range in the buffer for which this
+// mapping is valid. Only JitReturnAddr entries within that buffer range can be
+// processed using this JITFrameInfoForBufferRange object.
+struct JITFrameInfoForBufferRange final {
+ JITFrameInfoForBufferRange Clone() const;
+
+ uint64_t mRangeStart;
+ uint64_t mRangeEnd; // mRangeEnd marks the first invalid index.
+
+ struct JITFrameKey {
+ bool operator==(const JITFrameKey& aOther) const {
+ return mCanonicalAddress == aOther.mCanonicalAddress &&
+ mDepth == aOther.mDepth;
+ }
+ bool operator!=(const JITFrameKey& aOther) const {
+ return !(*this == aOther);
+ }
+
+ void* mCanonicalAddress;
+ uint32_t mDepth;
+ };
+ struct JITFrameKeyHasher {
+ using Lookup = JITFrameKey;
+
+ static mozilla::HashNumber hash(const JITFrameKey& aLookup) {
+ mozilla::HashNumber hash = 0;
+ hash = mozilla::AddToHash(hash, aLookup.mCanonicalAddress);
+ hash = mozilla::AddToHash(hash, aLookup.mDepth);
+ return hash;
+ }
+
+ static bool match(const JITFrameKey& aKey, const JITFrameKey& aLookup) {
+ return aKey == aLookup;
+ }
+
+ static void rekey(JITFrameKey& aKey, const JITFrameKey& aNewKey) {
+ aKey = aNewKey;
+ }
+ };
+
+ using JITAddressToJITFramesMap =
+ mozilla::HashMap<void*, mozilla::Vector<JITFrameKey>>;
+ JITAddressToJITFramesMap mJITAddressToJITFramesMap;
+ using JITFrameToFrameJSONMap =
+ mozilla::HashMap<JITFrameKey, nsCString, JITFrameKeyHasher>;
+ JITFrameToFrameJSONMap mJITFrameToFrameJSONMap;
+};
+
+// Contains JITFrameInfoForBufferRange objects for multiple profiler buffer
+// ranges.
+class JITFrameInfo final {
+ public:
+ JITFrameInfo()
+ : mUniqueStrings(mozilla::MakeUniqueFallible<UniqueJSONStrings>(
+ mLocalFailureLatchSource)) {
+ if (!mUniqueStrings) {
+ mLocalFailureLatchSource.SetFailure(
+ "OOM in JITFrameInfo allocating mUniqueStrings");
+ }
+ }
+
+ MOZ_IMPLICIT JITFrameInfo(const JITFrameInfo& aOther,
+ mozilla::ProgressLogger aProgressLogger);
+
+ // Creates a new JITFrameInfoForBufferRange object in mRanges by looking up
+ // information about the provided JIT return addresses using aCx.
+ // Addresses are provided like this:
+ // The caller of AddInfoForRange supplies a function in aJITAddressProvider.
+ // This function will be called once, synchronously, with an
+ // aJITAddressConsumer argument, which is a function that needs to be called
+ // for every address. That function can be called multiple times for the same
+ // address.
+ void AddInfoForRange(
+ uint64_t aRangeStart, uint64_t aRangeEnd, JSContext* aCx,
+ const std::function<void(const std::function<void(void*)>&)>&
+ aJITAddressProvider);
+
+ // Returns whether the information stored in this object is still relevant
+ // for any entries in the buffer.
+ bool HasExpired(uint64_t aCurrentBufferRangeStart) const {
+ if (mRanges.empty()) {
+ // No information means no relevant information. Allow this object to be
+ // discarded.
+ return true;
+ }
+ return mRanges.back().mRangeEnd <= aCurrentBufferRangeStart;
+ }
+
+ mozilla::FailureLatch& LocalFailureLatchSource() {
+ return mLocalFailureLatchSource;
+ }
+
+ // The encapsulated data points at the local FailureLatch, so on the way out
+ // they must be given a new external FailureLatch to start using instead.
+ mozilla::Vector<JITFrameInfoForBufferRange>&& MoveRangesWithNewFailureLatch(
+ mozilla::FailureLatch& aFailureLatch) &&;
+ mozilla::UniquePtr<UniqueJSONStrings>&& MoveUniqueStringsWithNewFailureLatch(
+ mozilla::FailureLatch& aFailureLatch) &&;
+
+ private:
+ // JITFrameInfo's may exist during profiling, so it carries its own fallible
+ // FailureLatch. If&when the data below is finally extracted, any error is
+ // forwarded to the caller.
+ mozilla::FailureLatchSource mLocalFailureLatchSource;
+
+ // The array of ranges of JIT frame information, sorted by buffer position.
+ // Ranges are non-overlapping.
+ // The JSON of the cached frames can contain string indexes, which refer
+ // to strings in mUniqueStrings.
+ mozilla::Vector<JITFrameInfoForBufferRange> mRanges;
+
+ // The string table which contains strings used in the frame JSON that's
+ // cached in mRanges.
+ mozilla::UniquePtr<UniqueJSONStrings> mUniqueStrings;
+};
+
+class UniqueStacks final : public mozilla::FailureLatch {
+ public:
+ struct FrameKey {
+ explicit FrameKey(const char* aLocation)
+ : mData(NormalFrameData{nsCString(aLocation), false, false, 0,
+ mozilla::Nothing(), mozilla::Nothing()}) {}
+
+ FrameKey(nsCString&& aLocation, bool aRelevantForJS, bool aBaselineInterp,
+ uint64_t aInnerWindowID, const mozilla::Maybe<unsigned>& aLine,
+ const mozilla::Maybe<unsigned>& aColumn,
+ const mozilla::Maybe<JS::ProfilingCategoryPair>& aCategoryPair)
+ : mData(NormalFrameData{aLocation, aRelevantForJS, aBaselineInterp,
+ aInnerWindowID, aLine, aColumn,
+ aCategoryPair}) {}
+
+ FrameKey(void* aJITAddress, uint32_t aJITDepth, uint32_t aRangeIndex)
+ : mData(JITFrameData{aJITAddress, aJITDepth, aRangeIndex}) {}
+
+ FrameKey(const FrameKey& aToCopy) = default;
+
+ uint32_t Hash() const;
+ bool operator==(const FrameKey& aOther) const {
+ return mData == aOther.mData;
+ }
+
+ struct NormalFrameData {
+ bool operator==(const NormalFrameData& aOther) const;
+
+ nsCString mLocation;
+ bool mRelevantForJS;
+ bool mBaselineInterp;
+ uint64_t mInnerWindowID;
+ mozilla::Maybe<unsigned> mLine;
+ mozilla::Maybe<unsigned> mColumn;
+ mozilla::Maybe<JS::ProfilingCategoryPair> mCategoryPair;
+ };
+ struct JITFrameData {
+ bool operator==(const JITFrameData& aOther) const;
+
+ void* mCanonicalAddress;
+ uint32_t mDepth;
+ uint32_t mRangeIndex;
+ };
+ mozilla::Variant<NormalFrameData, JITFrameData> mData;
+ };
+
+ struct FrameKeyHasher {
+ using Lookup = FrameKey;
+
+ static mozilla::HashNumber hash(const FrameKey& aLookup) {
+ mozilla::HashNumber hash = 0;
+ if (aLookup.mData.is<FrameKey::NormalFrameData>()) {
+ const FrameKey::NormalFrameData& data =
+ aLookup.mData.as<FrameKey::NormalFrameData>();
+ if (!data.mLocation.IsEmpty()) {
+ hash = mozilla::AddToHash(hash,
+ mozilla::HashString(data.mLocation.get()));
+ }
+ hash = mozilla::AddToHash(hash, data.mRelevantForJS);
+ hash = mozilla::AddToHash(hash, data.mBaselineInterp);
+ hash = mozilla::AddToHash(hash, data.mInnerWindowID);
+ if (data.mLine.isSome()) {
+ hash = mozilla::AddToHash(hash, *data.mLine);
+ }
+ if (data.mColumn.isSome()) {
+ hash = mozilla::AddToHash(hash, *data.mColumn);
+ }
+ if (data.mCategoryPair.isSome()) {
+ hash = mozilla::AddToHash(hash,
+ static_cast<uint32_t>(*data.mCategoryPair));
+ }
+ } else {
+ const FrameKey::JITFrameData& data =
+ aLookup.mData.as<FrameKey::JITFrameData>();
+ hash = mozilla::AddToHash(hash, data.mCanonicalAddress);
+ hash = mozilla::AddToHash(hash, data.mDepth);
+ hash = mozilla::AddToHash(hash, data.mRangeIndex);
+ }
+ return hash;
+ }
+
+ static bool match(const FrameKey& aKey, const FrameKey& aLookup) {
+ return aKey == aLookup;
+ }
+
+ static void rekey(FrameKey& aKey, const FrameKey& aNewKey) {
+ aKey = aNewKey;
+ }
+ };
+
+ struct StackKey {
+ mozilla::Maybe<uint32_t> mPrefixStackIndex;
+ uint32_t mFrameIndex;
+
+ explicit StackKey(uint32_t aFrame)
+ : mFrameIndex(aFrame), mHash(mozilla::HashGeneric(aFrame)) {}
+
+ StackKey(const StackKey& aPrefix, uint32_t aPrefixStackIndex,
+ uint32_t aFrame)
+ : mPrefixStackIndex(mozilla::Some(aPrefixStackIndex)),
+ mFrameIndex(aFrame),
+ mHash(mozilla::AddToHash(aPrefix.mHash, aFrame)) {}
+
+ mozilla::HashNumber Hash() const { return mHash; }
+
+ bool operator==(const StackKey& aOther) const {
+ return mPrefixStackIndex == aOther.mPrefixStackIndex &&
+ mFrameIndex == aOther.mFrameIndex;
+ }
+
+ private:
+ mozilla::HashNumber mHash;
+ };
+
+ struct StackKeyHasher {
+ using Lookup = StackKey;
+
+ static mozilla::HashNumber hash(const StackKey& aLookup) {
+ return aLookup.Hash();
+ }
+
+ static bool match(const StackKey& aKey, const StackKey& aLookup) {
+ return aKey == aLookup;
+ }
+
+ static void rekey(StackKey& aKey, const StackKey& aNewKey) {
+ aKey = aNewKey;
+ }
+ };
+
+ UniqueStacks(mozilla::FailureLatch& aFailureLatch,
+ JITFrameInfo&& aJITFrameInfo,
+ ProfilerCodeAddressService* aCodeAddressService = nullptr);
+
+ // Return a StackKey for aFrame as the stack's root frame (no prefix).
+ [[nodiscard]] mozilla::Maybe<StackKey> BeginStack(const FrameKey& aFrame);
+
+ // Return a new StackKey that is obtained by appending aFrame to aStack.
+ [[nodiscard]] mozilla::Maybe<StackKey> AppendFrame(const StackKey& aStack,
+ const FrameKey& aFrame);
+
+ // Look up frame keys for the given JIT address, and ensure that our frame
+ // table has entries for the returned frame keys. The JSON for these frames
+ // is taken from mJITInfoRanges.
+ // aBufferPosition is needed in order to look up the correct JIT frame info
+ // object in mJITInfoRanges.
+ [[nodiscard]] mozilla::Maybe<mozilla::Vector<UniqueStacks::FrameKey>>
+ LookupFramesForJITAddressFromBufferPos(void* aJITAddress,
+ uint64_t aBufferPosition);
+
+ [[nodiscard]] mozilla::Maybe<uint32_t> GetOrAddFrameIndex(
+ const FrameKey& aFrame);
+ [[nodiscard]] mozilla::Maybe<uint32_t> GetOrAddStackIndex(
+ const StackKey& aStack);
+
+ void SpliceFrameTableElements(SpliceableJSONWriter& aWriter);
+ void SpliceStackTableElements(SpliceableJSONWriter& aWriter);
+
+ [[nodiscard]] UniqueJSONStrings& UniqueStrings() {
+ MOZ_RELEASE_ASSERT(mUniqueStrings.get());
+ return *mUniqueStrings;
+ }
+
+ // Find the function name at the given PC (if a ProfilerCodeAddressService was
+ // provided), otherwise just stringify that PC.
+ [[nodiscard]] nsAutoCString FunctionNameOrAddress(void* aPC);
+
+ FAILURELATCH_IMPL_PROXY(mFrameTableWriter)
+
+ private:
+ void StreamNonJITFrame(const FrameKey& aFrame);
+ void StreamStack(const StackKey& aStack);
+
+ mozilla::UniquePtr<UniqueJSONStrings> mUniqueStrings;
+
+ ProfilerCodeAddressService* mCodeAddressService = nullptr;
+
+ SpliceableChunkedJSONWriter mFrameTableWriter;
+ mozilla::HashMap<FrameKey, uint32_t, FrameKeyHasher> mFrameToIndexMap;
+
+ SpliceableChunkedJSONWriter mStackTableWriter;
+ mozilla::HashMap<StackKey, uint32_t, StackKeyHasher> mStackToIndexMap;
+
+ mozilla::Vector<JITFrameInfoForBufferRange> mJITInfoRanges;
+};
+
+//
+// Thread profile JSON Format
+// --------------------------
+//
+// The profile contains much duplicate information. The output JSON of the
+// profile attempts to deduplicate strings, frames, and stack prefixes, to cut
+// down on size and to increase JSON streaming speed. Deduplicated values are
+// streamed as indices into their respective tables.
+//
+// Further, arrays of objects with the same set of properties (e.g., samples,
+// frames) are output as arrays according to a schema instead of an object
+// with property names. A property that is not present is represented in the
+// array as null or undefined.
+//
+// The format of the thread profile JSON is shown by the following example
+// with 1 sample and 1 marker:
+//
+// {
+// "name": "Foo",
+// "tid": 42,
+// "samples":
+// {
+// "schema":
+// {
+// "stack": 0, /* index into stackTable */
+// "time": 1, /* number */
+// "eventDelay": 2, /* number */
+// "ThreadCPUDelta": 3, /* optional number */
+// },
+// "data":
+// [
+// [ 1, 0.0, 0.0 ] /* { stack: 1, time: 0.0, eventDelay: 0.0 } */
+// ]
+// },
+//
+// "markers":
+// {
+// "schema":
+// {
+// "name": 0, /* index into stringTable */
+// "time": 1, /* number */
+// "data": 2 /* arbitrary JSON */
+// },
+// "data":
+// [
+// [ 3, 0.1 ] /* { name: 'example marker', time: 0.1 } */
+// ]
+// },
+//
+// "stackTable":
+// {
+// "schema":
+// {
+// "prefix": 0, /* index into stackTable */
+// "frame": 1 /* index into frameTable */
+// },
+// "data":
+// [
+// [ null, 0 ], /* (root) */
+// [ 0, 1 ] /* (root) > foo.js */
+// ]
+// },
+//
+// "frameTable":
+// {
+// "schema":
+// {
+// "location": 0, /* index into stringTable */
+// "relevantForJS": 1, /* bool */
+// "innerWindowID": 2, /* inner window ID of global JS `window` object */
+// "implementation": 3, /* index into stringTable */
+// "line": 4, /* number */
+// "column": 5, /* number */
+// "category": 6, /* index into profile.meta.categories */
+// "subcategory": 7 /* index into
+// profile.meta.categories[category].subcategories */
+// },
+// "data":
+// [
+// [ 0 ], /* { location: '(root)' } */
+// [ 1, null, null, 2 ] /* { location: 'foo.js',
+// implementation: 'baseline' } */
+// ]
+// },
+//
+// "stringTable":
+// [
+// "(root)",
+// "foo.js",
+// "baseline",
+// "example marker"
+// ]
+// }
+//
+// Process:
+// {
+// "name": "Bar",
+// "pid": 24,
+// "threads":
+// [
+// <0-N threads from above>
+// ],
+// "counters": /* includes the memory counter */
+// [
+// {
+// "name": "qwerty",
+// "category": "uiop",
+// "description": "this is qwerty uiop",
+// "sample_groups:
+// [
+// {
+// "id": 42, /* number (thread id, or object identifier (tab), etc) */
+// "samples:
+// {
+// "schema":
+// {
+// "time": 1, /* number */
+// "number": 2, /* number (of times the counter was touched) */
+// "count": 3 /* number (total for the counter) */
+// },
+// "data":
+// [
+// [ 0.1, 1824,
+// 454622 ] /* { time: 0.1, number: 1824, count: 454622 } */
+// ]
+// },
+// },
+// /* more sample-group objects with different id's */
+// ]
+// },
+// /* more counters */
+// ],
+// }
+//
+#endif /* ndef ProfileBufferEntry_h */
diff --git a/tools/profiler/core/ProfiledThreadData.cpp b/tools/profiler/core/ProfiledThreadData.cpp
new file mode 100644
index 0000000000..febda0d85b
--- /dev/null
+++ b/tools/profiler/core/ProfiledThreadData.cpp
@@ -0,0 +1,455 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ProfiledThreadData.h"
+
+#include "platform.h"
+#include "ProfileBuffer.h"
+
+#include "mozilla/OriginAttributes.h"
+#include "mozilla/Span.h"
+#include "nsXULAppAPI.h"
+
+#if defined(GP_OS_darwin)
+# include <pthread.h>
+#endif
+
+using namespace mozilla::literals::ProportionValue_literals;
+
+ProfiledThreadData::ProfiledThreadData(
+ const mozilla::profiler::ThreadRegistrationInfo& aThreadInfo)
+ : mThreadInfo(aThreadInfo.Name(), aThreadInfo.ThreadId(),
+ aThreadInfo.IsMainThread(), aThreadInfo.RegisterTime()) {
+ MOZ_COUNT_CTOR(ProfiledThreadData);
+}
+
+ProfiledThreadData::ProfiledThreadData(
+ mozilla::profiler::ThreadRegistrationInfo&& aThreadInfo)
+ : mThreadInfo(std::move(aThreadInfo)) {
+ MOZ_COUNT_CTOR(ProfiledThreadData);
+}
+
+ProfiledThreadData::~ProfiledThreadData() {
+ MOZ_COUNT_DTOR(ProfiledThreadData);
+}
+
+static void StreamTables(UniqueStacks&& aUniqueStacks, JSContext* aCx,
+ SpliceableJSONWriter& aWriter,
+ const mozilla::TimeStamp& aProcessStartTime,
+ mozilla::ProgressLogger aProgressLogger) {
+ aWriter.StartObjectProperty("stackTable");
+ {
+ {
+ JSONSchemaWriter schema(aWriter);
+ schema.WriteField("prefix");
+ schema.WriteField("frame");
+ }
+
+ aWriter.StartArrayProperty("data");
+ {
+ aProgressLogger.SetLocalProgress(1_pc, "Splicing stack table...");
+ aUniqueStacks.SpliceStackTableElements(aWriter);
+ aProgressLogger.SetLocalProgress(30_pc, "Spliced stack table");
+ }
+ aWriter.EndArray();
+ }
+ aWriter.EndObject();
+
+ aWriter.StartObjectProperty("frameTable");
+ {
+ {
+ JSONSchemaWriter schema(aWriter);
+ schema.WriteField("location");
+ schema.WriteField("relevantForJS");
+ schema.WriteField("innerWindowID");
+ schema.WriteField("implementation");
+ schema.WriteField("line");
+ schema.WriteField("column");
+ schema.WriteField("category");
+ schema.WriteField("subcategory");
+ }
+
+ aWriter.StartArrayProperty("data");
+ {
+ aProgressLogger.SetLocalProgress(30_pc, "Splicing frame table...");
+ aUniqueStacks.SpliceFrameTableElements(aWriter);
+ aProgressLogger.SetLocalProgress(60_pc, "Spliced frame table");
+ }
+ aWriter.EndArray();
+ }
+ aWriter.EndObject();
+
+ aWriter.StartArrayProperty("stringTable");
+ {
+ aProgressLogger.SetLocalProgress(60_pc, "Splicing string table...");
+ std::move(aUniqueStacks.UniqueStrings()).SpliceStringTableElements(aWriter);
+ aProgressLogger.SetLocalProgress(90_pc, "Spliced string table");
+ }
+ aWriter.EndArray();
+}
+
+mozilla::NotNull<mozilla::UniquePtr<UniqueStacks>>
+ProfiledThreadData::PrepareUniqueStacks(
+ const ProfileBuffer& aBuffer, JSContext* aCx,
+ mozilla::FailureLatch& aFailureLatch, ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger) {
+ if (mJITFrameInfoForPreviousJSContexts &&
+ mJITFrameInfoForPreviousJSContexts->HasExpired(
+ aBuffer.BufferRangeStart())) {
+ mJITFrameInfoForPreviousJSContexts = nullptr;
+ }
+ aProgressLogger.SetLocalProgress(1_pc, "Checked JIT frame info presence");
+
+ // If we have an existing JITFrameInfo in mJITFrameInfoForPreviousJSContexts,
+ // copy the data from it.
+ JITFrameInfo jitFrameInfo =
+ mJITFrameInfoForPreviousJSContexts
+ ? JITFrameInfo(*mJITFrameInfoForPreviousJSContexts,
+ aProgressLogger.CreateSubLoggerTo(
+ "Retrieving JIT frame info...", 10_pc,
+ "Retrieved JIT frame info"))
+ : JITFrameInfo();
+
+ if (aCx && mBufferPositionWhenReceivedJSContext) {
+ aBuffer.AddJITInfoForRange(
+ *mBufferPositionWhenReceivedJSContext, mThreadInfo.ThreadId(), aCx,
+ jitFrameInfo,
+ aProgressLogger.CreateSubLoggerTo("Adding JIT info...", 90_pc,
+ "Added JIT info"));
+ } else {
+ aProgressLogger.SetLocalProgress(90_pc, "No JIT info");
+ }
+
+ return mozilla::MakeNotNull<mozilla::UniquePtr<UniqueStacks>>(
+ aFailureLatch, std::move(jitFrameInfo), aService);
+}
+
+void ProfiledThreadData::StreamJSON(
+ const ProfileBuffer& aBuffer, JSContext* aCx, SpliceableJSONWriter& aWriter,
+ const nsACString& aProcessName, const nsACString& aETLDplus1,
+ const mozilla::TimeStamp& aProcessStartTime, double aSinceTime,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger) {
+ mozilla::NotNull<mozilla::UniquePtr<UniqueStacks>> uniqueStacks =
+ PrepareUniqueStacks(aBuffer, aCx, aWriter.SourceFailureLatch(), aService,
+ aProgressLogger.CreateSubLoggerFromTo(
+ 0_pc, "Preparing unique stacks...", 10_pc,
+ "Prepared Unique stacks"));
+
+ aWriter.SetUniqueStrings(uniqueStacks->UniqueStrings());
+
+ aWriter.Start();
+ {
+ StreamSamplesAndMarkers(
+ mThreadInfo.Name(), mThreadInfo.ThreadId(), aBuffer, aWriter,
+ aProcessName, aETLDplus1, aProcessStartTime, mThreadInfo.RegisterTime(),
+ mUnregisterTime, aSinceTime, *uniqueStacks,
+ aProgressLogger.CreateSubLoggerTo(
+ 90_pc,
+ "ProfiledThreadData::StreamJSON: Streamed samples and markers"));
+
+ StreamTables(std::move(*uniqueStacks), aCx, aWriter, aProcessStartTime,
+ aProgressLogger.CreateSubLoggerTo(
+ 99_pc, "Streamed tables and trace logger"));
+ }
+ aWriter.End();
+
+ aWriter.ResetUniqueStrings();
+}
+
+void ProfiledThreadData::StreamJSON(
+ ThreadStreamingContext&& aThreadStreamingContext,
+ SpliceableJSONWriter& aWriter, const nsACString& aProcessName,
+ const nsACString& aETLDplus1, const mozilla::TimeStamp& aProcessStartTime,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger) {
+ aWriter.Start();
+ {
+ StreamSamplesAndMarkers(
+ mThreadInfo.Name(), aThreadStreamingContext, aWriter, aProcessName,
+ aETLDplus1, aProcessStartTime, mThreadInfo.RegisterTime(),
+ mUnregisterTime,
+ aProgressLogger.CreateSubLoggerFromTo(
+ 1_pc, "ProfiledThreadData::StreamJSON(context): Streaming...",
+ 90_pc,
+ "ProfiledThreadData::StreamJSON(context): Streamed samples and "
+ "markers"));
+
+ StreamTables(
+ std::move(*aThreadStreamingContext.mUniqueStacks),
+ aThreadStreamingContext.mJSContext, aWriter, aProcessStartTime,
+ aProgressLogger.CreateSubLoggerTo(
+ "ProfiledThreadData::StreamJSON(context): Streaming tables...",
+ 99_pc, "ProfiledThreadData::StreamJSON(context): Streamed tables"));
+ }
+ aWriter.End();
+}
+
+// StreamSamplesDataCallback: (ProgressLogger) -> ProfilerThreadId
+// StreamMarkersDataCallback: (ProgressLogger) -> void
+// Returns the ProfilerThreadId returned by StreamSamplesDataCallback, which
+// should be the thread id of the last sample that was processed (if any;
+// otherwise it is left unspecified). This is mostly useful when the caller
+// doesn't know where the sample comes from, e.g., when it's a backtrace in a
+// marker.
+template <typename StreamSamplesDataCallback,
+ typename StreamMarkersDataCallback>
+ProfilerThreadId DoStreamSamplesAndMarkers(
+ const char* aName, SpliceableJSONWriter& aWriter,
+ const nsACString& aProcessName, const nsACString& aETLDplus1,
+ const mozilla::TimeStamp& aProcessStartTime,
+ const mozilla::TimeStamp& aRegisterTime,
+ const mozilla::TimeStamp& aUnregisterTime,
+ mozilla::ProgressLogger aProgressLogger,
+ StreamSamplesDataCallback&& aStreamSamplesDataCallback,
+ StreamMarkersDataCallback&& aStreamMarkersDataCallback) {
+ ProfilerThreadId processedThreadId;
+
+ aWriter.StringProperty("processType",
+ mozilla::MakeStringSpan(XRE_GetProcessTypeString()));
+
+ aWriter.StringProperty("name", mozilla::MakeStringSpan(aName));
+
+ // Use given process name (if any), unless we're the parent process.
+ if (XRE_IsParentProcess()) {
+ aWriter.StringProperty("processName", "Parent Process");
+ } else if (!aProcessName.IsEmpty()) {
+ aWriter.StringProperty("processName", aProcessName);
+ }
+ if (!aETLDplus1.IsEmpty()) {
+ nsAutoCString originNoSuffix;
+ mozilla::OriginAttributes attrs;
+ if (!attrs.PopulateFromOrigin(aETLDplus1, originNoSuffix)) {
+ aWriter.StringProperty("eTLD+1", aETLDplus1);
+ } else {
+ aWriter.StringProperty("eTLD+1", originNoSuffix);
+ aWriter.BoolProperty("isPrivateBrowsing", attrs.mPrivateBrowsingId > 0);
+ aWriter.IntProperty("userContextId", attrs.mUserContextId);
+ }
+ }
+
+ if (aRegisterTime) {
+ aWriter.DoubleProperty(
+ "registerTime", (aRegisterTime - aProcessStartTime).ToMilliseconds());
+ } else {
+ aWriter.NullProperty("registerTime");
+ }
+
+ if (aUnregisterTime) {
+ aWriter.DoubleProperty(
+ "unregisterTime",
+ (aUnregisterTime - aProcessStartTime).ToMilliseconds());
+ } else {
+ aWriter.NullProperty("unregisterTime");
+ }
+
+ aWriter.StartObjectProperty("samples");
+ {
+ {
+ JSONSchemaWriter schema(aWriter);
+ schema.WriteField("stack");
+ schema.WriteField("time");
+ schema.WriteField("eventDelay");
+#define RUNNING_TIME_FIELD(index, name, unit, jsonProperty) \
+ schema.WriteField(#jsonProperty);
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_FIELD)
+#undef RUNNING_TIME_FIELD
+ }
+
+ aWriter.StartArrayProperty("data");
+ {
+ processedThreadId = std::forward<StreamSamplesDataCallback>(
+ aStreamSamplesDataCallback)(aProgressLogger.CreateSubLoggerFromTo(
+ 1_pc, "Streaming samples...", 49_pc, "Streamed samples"));
+ }
+ aWriter.EndArray();
+ }
+ aWriter.EndObject();
+
+ aWriter.StartObjectProperty("markers");
+ {
+ {
+ JSONSchemaWriter schema(aWriter);
+ schema.WriteField("name");
+ schema.WriteField("startTime");
+ schema.WriteField("endTime");
+ schema.WriteField("phase");
+ schema.WriteField("category");
+ schema.WriteField("data");
+ }
+
+ aWriter.StartArrayProperty("data");
+ {
+ std::forward<StreamMarkersDataCallback>(aStreamMarkersDataCallback)(
+ aProgressLogger.CreateSubLoggerFromTo(50_pc, "Streaming markers...",
+ 99_pc, "Streamed markers"));
+ }
+ aWriter.EndArray();
+ }
+ aWriter.EndObject();
+
+ // Tech note: If `ToNumber()` returns a uint64_t, the conversion to int64_t is
+ // "implementation-defined" before C++20. This is acceptable here, because
+ // this is a one-way conversion to a unique identifier that's used to visually
+ // separate data by thread on the front-end.
+ aWriter.IntProperty(
+ "pid", static_cast<int64_t>(profiler_current_process_id().ToNumber()));
+ aWriter.IntProperty("tid",
+ static_cast<int64_t>(processedThreadId.ToNumber()));
+
+ return processedThreadId;
+}
+
+ProfilerThreadId StreamSamplesAndMarkers(
+ const char* aName, ProfilerThreadId aThreadId, const ProfileBuffer& aBuffer,
+ SpliceableJSONWriter& aWriter, const nsACString& aProcessName,
+ const nsACString& aETLDplus1, const mozilla::TimeStamp& aProcessStartTime,
+ const mozilla::TimeStamp& aRegisterTime,
+ const mozilla::TimeStamp& aUnregisterTime, double aSinceTime,
+ UniqueStacks& aUniqueStacks, mozilla::ProgressLogger aProgressLogger) {
+ return DoStreamSamplesAndMarkers(
+ aName, aWriter, aProcessName, aETLDplus1, aProcessStartTime,
+ aRegisterTime, aUnregisterTime, std::move(aProgressLogger),
+ [&](mozilla::ProgressLogger aSubProgressLogger) {
+ ProfilerThreadId processedThreadId = aBuffer.StreamSamplesToJSON(
+ aWriter, aThreadId, aSinceTime, aUniqueStacks,
+ std::move(aSubProgressLogger));
+ return aThreadId.IsSpecified() ? aThreadId : processedThreadId;
+ },
+ [&](mozilla::ProgressLogger aSubProgressLogger) {
+ aBuffer.StreamMarkersToJSON(aWriter, aThreadId, aProcessStartTime,
+ aSinceTime, aUniqueStacks,
+ std::move(aSubProgressLogger));
+ });
+}
+
+void StreamSamplesAndMarkers(const char* aName,
+ ThreadStreamingContext& aThreadData,
+ SpliceableJSONWriter& aWriter,
+ const nsACString& aProcessName,
+ const nsACString& aETLDplus1,
+ const mozilla::TimeStamp& aProcessStartTime,
+ const mozilla::TimeStamp& aRegisterTime,
+ const mozilla::TimeStamp& aUnregisterTime,
+ mozilla::ProgressLogger aProgressLogger) {
+ (void)DoStreamSamplesAndMarkers(
+ aName, aWriter, aProcessName, aETLDplus1, aProcessStartTime,
+ aRegisterTime, aUnregisterTime, std::move(aProgressLogger),
+ [&](mozilla::ProgressLogger aSubProgressLogger) {
+ aWriter.TakeAndSplice(
+ aThreadData.mSamplesDataWriter.TakeChunkedWriteFunc());
+ return aThreadData.mProfiledThreadData.Info().ThreadId();
+ },
+ [&](mozilla::ProgressLogger aSubProgressLogger) {
+ aWriter.TakeAndSplice(
+ aThreadData.mMarkersDataWriter.TakeChunkedWriteFunc());
+ });
+}
+
+void ProfiledThreadData::NotifyAboutToLoseJSContext(
+ JSContext* aContext, const mozilla::TimeStamp& aProcessStartTime,
+ ProfileBuffer& aBuffer) {
+ if (!mBufferPositionWhenReceivedJSContext) {
+ return;
+ }
+
+ MOZ_RELEASE_ASSERT(aContext);
+
+ if (mJITFrameInfoForPreviousJSContexts &&
+ mJITFrameInfoForPreviousJSContexts->HasExpired(
+ aBuffer.BufferRangeStart())) {
+ mJITFrameInfoForPreviousJSContexts = nullptr;
+ }
+
+ mozilla::UniquePtr<JITFrameInfo> jitFrameInfo =
+ mJITFrameInfoForPreviousJSContexts
+ ? std::move(mJITFrameInfoForPreviousJSContexts)
+ : mozilla::MakeUnique<JITFrameInfo>();
+
+ aBuffer.AddJITInfoForRange(*mBufferPositionWhenReceivedJSContext,
+ mThreadInfo.ThreadId(), aContext, *jitFrameInfo,
+ mozilla::ProgressLogger{});
+
+ mJITFrameInfoForPreviousJSContexts = std::move(jitFrameInfo);
+ mBufferPositionWhenReceivedJSContext = mozilla::Nothing();
+}
+
+ThreadStreamingContext::ThreadStreamingContext(
+ ProfiledThreadData& aProfiledThreadData, const ProfileBuffer& aBuffer,
+ JSContext* aCx, mozilla::FailureLatch& aFailureLatch,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger)
+ : mProfiledThreadData(aProfiledThreadData),
+ mJSContext(aCx),
+ mSamplesDataWriter(aFailureLatch),
+ mMarkersDataWriter(aFailureLatch),
+ mUniqueStacks(mProfiledThreadData.PrepareUniqueStacks(
+ aBuffer, aCx, aFailureLatch, aService,
+ aProgressLogger.CreateSubLoggerFromTo(
+ 0_pc, "Preparing thread streaming context unique stacks...",
+ 99_pc, "Prepared thread streaming context Unique stacks"))) {
+ if (aFailureLatch.Failed()) {
+ return;
+ }
+ mSamplesDataWriter.SetUniqueStrings(mUniqueStacks->UniqueStrings());
+ mSamplesDataWriter.StartBareList();
+ mMarkersDataWriter.SetUniqueStrings(mUniqueStacks->UniqueStrings());
+ mMarkersDataWriter.StartBareList();
+}
+
+void ThreadStreamingContext::FinalizeWriter() {
+ mSamplesDataWriter.EndBareList();
+ mMarkersDataWriter.EndBareList();
+}
+
+ProcessStreamingContext::ProcessStreamingContext(
+ size_t aThreadCount, mozilla::FailureLatch& aFailureLatch,
+ const mozilla::TimeStamp& aProcessStartTime, double aSinceTime)
+ : mFailureLatch(aFailureLatch),
+ mProcessStartTime(aProcessStartTime),
+ mSinceTime(aSinceTime) {
+ if (mFailureLatch.Failed()) {
+ return;
+ }
+ if (!mTIDList.initCapacity(aThreadCount)) {
+ mFailureLatch.SetFailure(
+ "OOM in ProcessStreamingContext allocating TID list");
+ return;
+ }
+ if (!mThreadStreamingContextList.initCapacity(aThreadCount)) {
+ mFailureLatch.SetFailure(
+ "OOM in ProcessStreamingContext allocating context list");
+ mTIDList.clear();
+ return;
+ }
+}
+
+ProcessStreamingContext::~ProcessStreamingContext() {
+ if (mFailureLatch.Failed()) {
+ return;
+ }
+ MOZ_ASSERT(mTIDList.length() == mThreadStreamingContextList.length());
+ MOZ_ASSERT(mTIDList.length() == mTIDList.capacity(),
+ "Didn't pre-allocate exactly right");
+}
+
+void ProcessStreamingContext::AddThreadStreamingContext(
+ ProfiledThreadData& aProfiledThreadData, const ProfileBuffer& aBuffer,
+ JSContext* aCx, ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger) {
+ if (mFailureLatch.Failed()) {
+ return;
+ }
+ MOZ_ASSERT(mTIDList.length() == mThreadStreamingContextList.length());
+ MOZ_ASSERT(mTIDList.length() < mTIDList.capacity(),
+ "Didn't pre-allocate enough");
+ mTIDList.infallibleAppend(aProfiledThreadData.Info().ThreadId());
+ mThreadStreamingContextList.infallibleEmplaceBack(
+ aProfiledThreadData, aBuffer, aCx, mFailureLatch, aService,
+ aProgressLogger.CreateSubLoggerFromTo(
+ 1_pc, "Prepared streaming thread id", 100_pc,
+ "Added thread streaming context"));
+}
diff --git a/tools/profiler/core/ProfiledThreadData.h b/tools/profiler/core/ProfiledThreadData.h
new file mode 100644
index 0000000000..47ae0c579c
--- /dev/null
+++ b/tools/profiler/core/ProfiledThreadData.h
@@ -0,0 +1,250 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef ProfiledThreadData_h
+#define ProfiledThreadData_h
+
+#include "platform.h"
+#include "ProfileBuffer.h"
+#include "ProfileBufferEntry.h"
+
+#include "mozilla/FailureLatch.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/NotNull.h"
+#include "mozilla/ProfileJSONWriter.h"
+#include "mozilla/ProfilerThreadRegistrationInfo.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Vector.h"
+#include "nsStringFwd.h"
+
+class nsIEventTarget;
+class ProfilerCodeAddressService;
+struct JSContext;
+struct ThreadStreamingContext;
+
+// This class contains information about a thread that is only relevant while
+// the profiler is running, for any threads (both alive and dead) whose thread
+// name matches the "thread filter" in the current profiler run.
+// ProfiledThreadData objects may be kept alive even after the thread is
+// unregistered, as long as there is still data for that thread in the profiler
+// buffer.
+//
+// Accesses to this class are protected by the profiler state lock.
+//
+// Created as soon as the following are true for the thread:
+// - The profiler is running, and
+// - the thread matches the profiler's thread filter, and
+// - the thread is registered with the profiler.
+// So it gets created in response to either (1) the profiler being started (for
+// an existing registered thread) or (2) the thread being registered (if the
+// profiler is already running).
+//
+// The thread may be unregistered during the lifetime of ProfiledThreadData.
+// If that happens, NotifyUnregistered() is called.
+//
+// This class is the right place to store buffer positions. Profiler buffer
+// positions become invalid if the profiler buffer is destroyed, which happens
+// when the profiler is stopped.
+class ProfiledThreadData final {
+ public:
+ explicit ProfiledThreadData(
+ const mozilla::profiler::ThreadRegistrationInfo& aThreadInfo);
+ explicit ProfiledThreadData(
+ mozilla::profiler::ThreadRegistrationInfo&& aThreadInfo);
+ ~ProfiledThreadData();
+
+ void NotifyUnregistered(uint64_t aBufferPosition) {
+ mLastSample = mozilla::Nothing();
+ MOZ_ASSERT(!mBufferPositionWhenReceivedJSContext,
+ "JSContext should have been cleared before the thread was "
+ "unregistered");
+ mUnregisterTime = mozilla::TimeStamp::Now();
+ mBufferPositionWhenUnregistered = mozilla::Some(aBufferPosition);
+ mPreviousThreadRunningTimes.Clear();
+ }
+ mozilla::Maybe<uint64_t> BufferPositionWhenUnregistered() {
+ return mBufferPositionWhenUnregistered;
+ }
+
+ mozilla::Maybe<uint64_t>& LastSample() { return mLastSample; }
+
+ mozilla::NotNull<mozilla::UniquePtr<UniqueStacks>> PrepareUniqueStacks(
+ const ProfileBuffer& aBuffer, JSContext* aCx,
+ mozilla::FailureLatch& aFailureLatch,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger);
+
+ void StreamJSON(const ProfileBuffer& aBuffer, JSContext* aCx,
+ SpliceableJSONWriter& aWriter, const nsACString& aProcessName,
+ const nsACString& aETLDplus1,
+ const mozilla::TimeStamp& aProcessStartTime,
+ double aSinceTime, ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger);
+ void StreamJSON(ThreadStreamingContext&& aThreadStreamingContext,
+ SpliceableJSONWriter& aWriter, const nsACString& aProcessName,
+ const nsACString& aETLDplus1,
+ const mozilla::TimeStamp& aProcessStartTime,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger);
+
+ const mozilla::profiler::ThreadRegistrationInfo& Info() const {
+ return mThreadInfo;
+ }
+
+ void NotifyReceivedJSContext(uint64_t aCurrentBufferPosition) {
+ mBufferPositionWhenReceivedJSContext =
+ mozilla::Some(aCurrentBufferPosition);
+ }
+
+ // Call this method when the JS entries inside the buffer are about to
+ // become invalid, i.e., just before JS shutdown.
+ void NotifyAboutToLoseJSContext(JSContext* aCx,
+ const mozilla::TimeStamp& aProcessStartTime,
+ ProfileBuffer& aBuffer);
+
+ RunningTimes& PreviousThreadRunningTimesRef() {
+ return mPreviousThreadRunningTimes;
+ }
+
+ private:
+ // Group A:
+ // The following fields are interesting for the entire lifetime of a
+ // ProfiledThreadData object.
+
+ // This thread's thread info. Local copy because the one in ThreadRegistration
+ // may be destroyed while ProfiledThreadData stays alive.
+ const mozilla::profiler::ThreadRegistrationInfo mThreadInfo;
+
+ // Contains JSON for JIT frames from any JSContexts that were used for this
+ // thread in the past.
+ // Null if this thread has never lost a JSContext or if all samples from
+ // previous JSContexts have been evicted from the profiler buffer.
+ mozilla::UniquePtr<JITFrameInfo> mJITFrameInfoForPreviousJSContexts;
+
+ // Group B:
+ // The following fields are only used while this thread is alive and
+ // registered. They become Nothing() or empty once the thread is unregistered.
+
+ // When sampling, this holds the position in ActivePS::mBuffer of the most
+ // recent sample for this thread, or Nothing() if there is no sample for this
+ // thread in the buffer.
+ mozilla::Maybe<uint64_t> mLastSample;
+
+ // Only non-Nothing() if the thread currently has a JSContext.
+ mozilla::Maybe<uint64_t> mBufferPositionWhenReceivedJSContext;
+
+ // RunningTimes at the previous sample if any, or empty.
+ RunningTimes mPreviousThreadRunningTimes;
+
+ // Group C:
+ // The following fields are only used once this thread has been unregistered.
+
+ mozilla::Maybe<uint64_t> mBufferPositionWhenUnregistered;
+ mozilla::TimeStamp mUnregisterTime;
+};
+
+// This class will be used when outputting the profile data for one thread.
+struct ThreadStreamingContext {
+ ProfiledThreadData& mProfiledThreadData;
+ JSContext* mJSContext;
+ SpliceableChunkedJSONWriter mSamplesDataWriter;
+ SpliceableChunkedJSONWriter mMarkersDataWriter;
+ mozilla::NotNull<mozilla::UniquePtr<UniqueStacks>> mUniqueStacks;
+
+ // These are updated when writing samples, and reused for "same-sample"s.
+ enum PreviousStackState { eNoStackYet, eStackWasNotEmpty, eStackWasEmpty };
+ PreviousStackState mPreviousStackState = eNoStackYet;
+ uint32_t mPreviousStack = 0;
+
+ ThreadStreamingContext(ProfiledThreadData& aProfiledThreadData,
+ const ProfileBuffer& aBuffer, JSContext* aCx,
+ mozilla::FailureLatch& aFailureLatch,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger);
+
+ void FinalizeWriter();
+};
+
+// This class will be used when outputting the profile data for all threads.
+class ProcessStreamingContext final : public mozilla::FailureLatch {
+ public:
+ // Pre-allocate space for `aThreadCount` threads.
+ ProcessStreamingContext(size_t aThreadCount,
+ mozilla::FailureLatch& aFailureLatch,
+ const mozilla::TimeStamp& aProcessStartTime,
+ double aSinceTime);
+
+ ~ProcessStreamingContext();
+
+ // Add the streaming context corresponding to each profiled thread. This
+ // should be called exactly the number of times specified in the constructor.
+ void AddThreadStreamingContext(ProfiledThreadData& aProfiledThreadData,
+ const ProfileBuffer& aBuffer, JSContext* aCx,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger);
+
+ // Retrieve the ThreadStreamingContext for a given thread id.
+ // Returns null if that thread id doesn't correspond to any profiled thread.
+ ThreadStreamingContext* GetThreadStreamingContext(
+ const ProfilerThreadId& aThreadId) {
+ for (size_t i = 0; i < mTIDList.length(); ++i) {
+ if (mTIDList[i] == aThreadId) {
+ return &mThreadStreamingContextList[i];
+ }
+ }
+ return nullptr;
+ }
+
+ const mozilla::TimeStamp& ProcessStartTime() const {
+ return mProcessStartTime;
+ }
+
+ double GetSinceTime() const { return mSinceTime; }
+
+ ThreadStreamingContext* begin() {
+ return mThreadStreamingContextList.begin();
+ };
+ ThreadStreamingContext* end() { return mThreadStreamingContextList.end(); };
+
+ FAILURELATCH_IMPL_PROXY(mFailureLatch)
+
+ private:
+ // Separate list of thread ids, it's much faster to do a linear search
+ // here than a vector of bigger items like mThreadStreamingContextList.
+ mozilla::Vector<ProfilerThreadId> mTIDList;
+ // Contexts corresponding to the thread id at the same indexes.
+ mozilla::Vector<ThreadStreamingContext> mThreadStreamingContextList;
+
+ mozilla::FailureLatch& mFailureLatch;
+
+ const mozilla::TimeStamp mProcessStartTime;
+
+ const double mSinceTime;
+};
+
+// Stream all samples and markers from aBuffer with the given aThreadId (or 0
+// for everything, which is assumed to be a single backtrace sample.)
+// Returns the thread id of the output sample(s), or 0 if none was present.
+ProfilerThreadId StreamSamplesAndMarkers(
+ const char* aName, ProfilerThreadId aThreadId, const ProfileBuffer& aBuffer,
+ SpliceableJSONWriter& aWriter, const nsACString& aProcessName,
+ const nsACString& aETLDplus1, const mozilla::TimeStamp& aProcessStartTime,
+ const mozilla::TimeStamp& aRegisterTime,
+ const mozilla::TimeStamp& aUnregisterTime, double aSinceTime,
+ UniqueStacks& aUniqueStacks, mozilla::ProgressLogger aProgressLogger);
+void StreamSamplesAndMarkers(const char* aName,
+ ThreadStreamingContext& aThreadData,
+ SpliceableJSONWriter& aWriter,
+ const nsACString& aProcessName,
+ const nsACString& aETLDplus1,
+ const mozilla::TimeStamp& aProcessStartTime,
+ const mozilla::TimeStamp& aRegisterTime,
+ const mozilla::TimeStamp& aUnregisterTime,
+ mozilla::ProgressLogger aProgressLogger);
+
+#endif // ProfiledThreadData_h
diff --git a/tools/profiler/core/ProfilerBacktrace.cpp b/tools/profiler/core/ProfilerBacktrace.cpp
new file mode 100644
index 0000000000..a264d85d64
--- /dev/null
+++ b/tools/profiler/core/ProfilerBacktrace.cpp
@@ -0,0 +1,101 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ProfilerBacktrace.h"
+
+#include "ProfileBuffer.h"
+#include "ProfiledThreadData.h"
+
+#include "mozilla/ProfileJSONWriter.h"
+
+ProfilerBacktrace::ProfilerBacktrace(
+ const char* aName,
+ mozilla::UniquePtr<mozilla::ProfileChunkedBuffer>
+ aProfileChunkedBufferStorage,
+ mozilla::UniquePtr<ProfileBuffer>
+ aProfileBufferStorageOrNull /* = nullptr */)
+ : mName(aName),
+ mOptionalProfileChunkedBufferStorage(
+ std::move(aProfileChunkedBufferStorage)),
+ mProfileChunkedBuffer(mOptionalProfileChunkedBufferStorage.get()),
+ mOptionalProfileBufferStorage(std::move(aProfileBufferStorageOrNull)),
+ mProfileBuffer(mOptionalProfileBufferStorage.get()) {
+ MOZ_COUNT_CTOR(ProfilerBacktrace);
+ if (mProfileBuffer) {
+ MOZ_RELEASE_ASSERT(mProfileChunkedBuffer,
+ "If we take ownership of a ProfileBuffer, we must also "
+ "receive ownership of a ProfileChunkedBuffer");
+ MOZ_RELEASE_ASSERT(
+ mProfileChunkedBuffer == &mProfileBuffer->UnderlyingChunkedBuffer(),
+ "If we take ownership of a ProfileBuffer, we must also receive "
+ "ownership of its ProfileChunkedBuffer");
+ }
+ MOZ_ASSERT(
+ !mProfileChunkedBuffer || !mProfileChunkedBuffer->IsThreadSafe(),
+ "ProfilerBacktrace only takes a non-thread-safe ProfileChunkedBuffer");
+}
+
+ProfilerBacktrace::ProfilerBacktrace(
+ const char* aName,
+ mozilla::ProfileChunkedBuffer* aExternalProfileChunkedBuffer,
+ ProfileBuffer* aExternalProfileBuffer)
+ : mName(aName),
+ mProfileChunkedBuffer(aExternalProfileChunkedBuffer),
+ mProfileBuffer(aExternalProfileBuffer) {
+ MOZ_COUNT_CTOR(ProfilerBacktrace);
+ if (!mProfileChunkedBuffer) {
+ if (mProfileBuffer) {
+ // We don't have a ProfileChunkedBuffer but we have a ProfileBuffer, use
+ // the latter's ProfileChunkedBuffer.
+ mProfileChunkedBuffer = &mProfileBuffer->UnderlyingChunkedBuffer();
+ MOZ_ASSERT(!mProfileChunkedBuffer->IsThreadSafe(),
+ "ProfilerBacktrace only takes a non-thread-safe "
+ "ProfileChunkedBuffer");
+ }
+ } else {
+ if (mProfileBuffer) {
+ MOZ_RELEASE_ASSERT(
+ mProfileChunkedBuffer == &mProfileBuffer->UnderlyingChunkedBuffer(),
+ "If we reference both ProfileChunkedBuffer and ProfileBuffer, they "
+ "must already be connected");
+ }
+ MOZ_ASSERT(!mProfileChunkedBuffer->IsThreadSafe(),
+ "ProfilerBacktrace only takes a non-thread-safe "
+ "ProfileChunkedBuffer");
+ }
+}
+
+ProfilerBacktrace::~ProfilerBacktrace() { MOZ_COUNT_DTOR(ProfilerBacktrace); }
+
+ProfilerThreadId ProfilerBacktrace::StreamJSON(
+ SpliceableJSONWriter& aWriter, const mozilla::TimeStamp& aProcessStartTime,
+ UniqueStacks& aUniqueStacks) {
+ ProfilerThreadId processedThreadId;
+
+ // Unlike ProfiledThreadData::StreamJSON, we don't need to call
+ // ProfileBuffer::AddJITInfoForRange because ProfileBuffer does not contain
+ // any JitReturnAddr entries. For synchronous samples, JIT frames get expanded
+ // at sample time.
+ if (mProfileBuffer) {
+ processedThreadId = StreamSamplesAndMarkers(
+ mName.c_str(), ProfilerThreadId{}, *mProfileBuffer, aWriter, ""_ns,
+ ""_ns, aProcessStartTime,
+ /* aRegisterTime */ mozilla::TimeStamp(),
+ /* aUnregisterTime */ mozilla::TimeStamp(),
+ /* aSinceTime */ 0, aUniqueStacks, mozilla::ProgressLogger{});
+ } else if (mProfileChunkedBuffer) {
+ ProfileBuffer profileBuffer(*mProfileChunkedBuffer);
+ processedThreadId = StreamSamplesAndMarkers(
+ mName.c_str(), ProfilerThreadId{}, profileBuffer, aWriter, ""_ns, ""_ns,
+ aProcessStartTime,
+ /* aRegisterTime */ mozilla::TimeStamp(),
+ /* aUnregisterTime */ mozilla::TimeStamp(),
+ /* aSinceTime */ 0, aUniqueStacks, mozilla::ProgressLogger{});
+ }
+ // If there are no buffers, the backtrace is empty and nothing is streamed.
+
+ return processedThreadId;
+}
diff --git a/tools/profiler/core/ProfilerBacktrace.h b/tools/profiler/core/ProfilerBacktrace.h
new file mode 100644
index 0000000000..55811f4422
--- /dev/null
+++ b/tools/profiler/core/ProfilerBacktrace.h
@@ -0,0 +1,184 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __PROFILER_BACKTRACE_H
+#define __PROFILER_BACKTRACE_H
+
+#include "ProfileBuffer.h"
+
+#include "mozilla/ProfileBufferEntrySerialization.h"
+#include "mozilla/UniquePtrExtensions.h"
+
+#include <string>
+
+class ProfileBuffer;
+class ProfilerCodeAddressService;
+class ThreadInfo;
+class UniqueStacks;
+
+namespace mozilla {
+class ProfileChunkedBuffer;
+class TimeStamp;
+namespace baseprofiler {
+class SpliceableJSONWriter;
+} // namespace baseprofiler
+} // namespace mozilla
+
+// ProfilerBacktrace encapsulates a synchronous sample.
+// It can work with a ProfileBuffer and/or a ProfileChunkedBuffer (if both, they
+// must already be linked together). The ProfileChunkedBuffer contains all the
+// data; the ProfileBuffer is not strictly needed, only provide it if it is
+// already available at the call site.
+// And these buffers can either be:
+// - owned here, so that the ProfilerBacktrace object can be kept for later
+// use), OR
+// - referenced through pointers (in cases where the backtrace is immediately
+// streamed out, so we only need temporary references to external buffers);
+// these pointers may be null for empty backtraces.
+class ProfilerBacktrace {
+ public:
+ // Take ownership of external buffers and use them to keep, and to stream a
+ // backtrace. If a ProfileBuffer is given, its underlying chunked buffer must
+ // be provided as well.
+ explicit ProfilerBacktrace(
+ const char* aName,
+ mozilla::UniquePtr<mozilla::ProfileChunkedBuffer>
+ aProfileChunkedBufferStorage,
+ mozilla::UniquePtr<ProfileBuffer> aProfileBufferStorageOrNull = nullptr);
+
+ // Take pointers to external buffers and use them to stream a backtrace.
+ // If null, the backtrace is effectively empty.
+ // If both are provided, they must already be connected.
+ explicit ProfilerBacktrace(
+ const char* aName,
+ mozilla::ProfileChunkedBuffer* aExternalProfileChunkedBufferOrNull =
+ nullptr,
+ ProfileBuffer* aExternalProfileBufferOrNull = nullptr);
+
+ ~ProfilerBacktrace();
+
+ [[nodiscard]] bool IsEmpty() const {
+ return !mProfileChunkedBuffer ||
+ mozilla::ProfileBufferEntryWriter::Serializer<
+ mozilla::ProfileChunkedBuffer>::Bytes(*mProfileChunkedBuffer) <=
+ mozilla::ULEB128Size(0u);
+ }
+
+ // ProfilerBacktraces' stacks are deduplicated in the context of the
+ // profile that contains the backtrace as a marker payload.
+ //
+ // That is, markers that contain backtraces should not need their own stack,
+ // frame, and string tables. They should instead reuse their parent
+ // profile's tables.
+ ProfilerThreadId StreamJSON(
+ mozilla::baseprofiler::SpliceableJSONWriter& aWriter,
+ const mozilla::TimeStamp& aProcessStartTime, UniqueStacks& aUniqueStacks);
+
+ private:
+ // Used to serialize a ProfilerBacktrace.
+ friend struct mozilla::ProfileBufferEntryWriter::Serializer<
+ ProfilerBacktrace>;
+ friend struct mozilla::ProfileBufferEntryReader::Deserializer<
+ ProfilerBacktrace>;
+
+ std::string mName;
+
+ // `ProfileChunkedBuffer` in which `mProfileBuffer` stores its data; must be
+ // located before `mProfileBuffer` so that it's destroyed after.
+ mozilla::UniquePtr<mozilla::ProfileChunkedBuffer>
+ mOptionalProfileChunkedBufferStorage;
+ // If null, there is no need to check mProfileBuffer's (if present) underlying
+ // buffer because this is done when constructed.
+ mozilla::ProfileChunkedBuffer* mProfileChunkedBuffer;
+
+ mozilla::UniquePtr<ProfileBuffer> mOptionalProfileBufferStorage;
+ ProfileBuffer* mProfileBuffer;
+};
+
+namespace mozilla {
+
+// Format: [ UniquePtr<BlockRingsBuffer> | name ]
+// Initial len==0 marks a nullptr or empty backtrace.
+template <>
+struct mozilla::ProfileBufferEntryWriter::Serializer<ProfilerBacktrace> {
+ static Length Bytes(const ProfilerBacktrace& aBacktrace) {
+ if (!aBacktrace.mProfileChunkedBuffer) {
+ // No buffer.
+ return ULEB128Size(0u);
+ }
+ auto bufferBytes = SumBytes(*aBacktrace.mProfileChunkedBuffer);
+ if (bufferBytes <= ULEB128Size(0u)) {
+ // Empty buffer.
+ return ULEB128Size(0u);
+ }
+ return bufferBytes + SumBytes(aBacktrace.mName);
+ }
+
+ static void Write(mozilla::ProfileBufferEntryWriter& aEW,
+ const ProfilerBacktrace& aBacktrace) {
+ if (!aBacktrace.mProfileChunkedBuffer ||
+ SumBytes(*aBacktrace.mProfileChunkedBuffer) <= ULEB128Size(0u)) {
+ // No buffer, or empty buffer.
+ aEW.WriteULEB128(0u);
+ return;
+ }
+ aEW.WriteObject(*aBacktrace.mProfileChunkedBuffer);
+ aEW.WriteObject(aBacktrace.mName);
+ }
+};
+
+template <typename Destructor>
+struct mozilla::ProfileBufferEntryWriter::Serializer<
+ mozilla::UniquePtr<ProfilerBacktrace, Destructor>> {
+ static Length Bytes(
+ const mozilla::UniquePtr<ProfilerBacktrace, Destructor>& aBacktrace) {
+ if (!aBacktrace) {
+ // Null backtrace pointer (treated like an empty backtrace).
+ return ULEB128Size(0u);
+ }
+ return SumBytes(*aBacktrace);
+ }
+
+ static void Write(
+ mozilla::ProfileBufferEntryWriter& aEW,
+ const mozilla::UniquePtr<ProfilerBacktrace, Destructor>& aBacktrace) {
+ if (!aBacktrace) {
+ // Null backtrace pointer (treated like an empty backtrace).
+ aEW.WriteULEB128(0u);
+ return;
+ }
+ aEW.WriteObject(*aBacktrace);
+ }
+};
+
+template <typename Destructor>
+struct mozilla::ProfileBufferEntryReader::Deserializer<
+ mozilla::UniquePtr<ProfilerBacktrace, Destructor>> {
+ static void ReadInto(
+ mozilla::ProfileBufferEntryReader& aER,
+ mozilla::UniquePtr<ProfilerBacktrace, Destructor>& aBacktrace) {
+ aBacktrace = Read(aER);
+ }
+
+ static mozilla::UniquePtr<ProfilerBacktrace, Destructor> Read(
+ mozilla::ProfileBufferEntryReader& aER) {
+ auto profileChunkedBuffer =
+ aER.ReadObject<UniquePtr<ProfileChunkedBuffer>>();
+ if (!profileChunkedBuffer) {
+ return nullptr;
+ }
+ MOZ_ASSERT(
+ !profileChunkedBuffer->IsThreadSafe(),
+ "ProfilerBacktrace only stores non-thread-safe ProfileChunkedBuffers");
+ std::string name = aER.ReadObject<std::string>();
+ return UniquePtr<ProfilerBacktrace, Destructor>{
+ new ProfilerBacktrace(name.c_str(), std::move(profileChunkedBuffer))};
+ }
+};
+
+} // namespace mozilla
+
+#endif // __PROFILER_BACKTRACE_H
diff --git a/tools/profiler/core/ProfilerBindings.cpp b/tools/profiler/core/ProfilerBindings.cpp
new file mode 100644
index 0000000000..c3af5c5b56
--- /dev/null
+++ b/tools/profiler/core/ProfilerBindings.cpp
@@ -0,0 +1,386 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* FFI functions for Profiler Rust API to call into profiler */
+
+#include "ProfilerBindings.h"
+
+#include "GeckoProfiler.h"
+
+#include <set>
+#include <type_traits>
+
+void gecko_profiler_register_thread(const char* aName) {
+ PROFILER_REGISTER_THREAD(aName);
+}
+
+void gecko_profiler_unregister_thread() { PROFILER_UNREGISTER_THREAD(); }
+
+void gecko_profiler_construct_label(mozilla::AutoProfilerLabel* aAutoLabel,
+ JS::ProfilingCategoryPair aCategoryPair) {
+#ifdef MOZ_GECKO_PROFILER
+ new (aAutoLabel) mozilla::AutoProfilerLabel(
+ "", nullptr, aCategoryPair,
+ uint32_t(
+ js::ProfilingStackFrame::Flags::LABEL_DETERMINED_BY_CATEGORY_PAIR));
+#endif
+}
+
+void gecko_profiler_destruct_label(mozilla::AutoProfilerLabel* aAutoLabel) {
+#ifdef MOZ_GECKO_PROFILER
+ aAutoLabel->~AutoProfilerLabel();
+#endif
+}
+
+void gecko_profiler_construct_timestamp_now(mozilla::TimeStamp* aTimeStamp) {
+ new (aTimeStamp) mozilla::TimeStamp(mozilla::TimeStamp::Now());
+}
+
+void gecko_profiler_clone_timestamp(const mozilla::TimeStamp* aSrcTimeStamp,
+ mozilla::TimeStamp* aDestTimeStamp) {
+ new (aDestTimeStamp) mozilla::TimeStamp(*aSrcTimeStamp);
+}
+
+void gecko_profiler_destruct_timestamp(mozilla::TimeStamp* aTimeStamp) {
+ aTimeStamp->~TimeStamp();
+}
+
+void gecko_profiler_add_timestamp(const mozilla::TimeStamp* aTimeStamp,
+ mozilla::TimeStamp* aDestTimeStamp,
+ double aMicroseconds) {
+ new (aDestTimeStamp) mozilla::TimeStamp(
+ *aTimeStamp + mozilla::TimeDuration::FromMicroseconds(aMicroseconds));
+}
+
+void gecko_profiler_subtract_timestamp(const mozilla::TimeStamp* aTimeStamp,
+ mozilla::TimeStamp* aDestTimeStamp,
+ double aMicroseconds) {
+ new (aDestTimeStamp) mozilla::TimeStamp(
+ *aTimeStamp - mozilla::TimeDuration::FromMicroseconds(aMicroseconds));
+}
+
+void gecko_profiler_construct_marker_timing_instant_at(
+ mozilla::MarkerTiming* aMarkerTiming, const mozilla::TimeStamp* aTime) {
+#ifdef MOZ_GECKO_PROFILER
+ static_assert(std::is_trivially_copyable_v<mozilla::MarkerTiming>);
+ mozilla::MarkerTiming::UnsafeConstruct(aMarkerTiming, *aTime,
+ mozilla::TimeStamp{},
+ mozilla::MarkerTiming::Phase::Instant);
+#endif
+}
+
+void gecko_profiler_construct_marker_timing_instant_now(
+ mozilla::MarkerTiming* aMarkerTiming) {
+#ifdef MOZ_GECKO_PROFILER
+ static_assert(std::is_trivially_copyable_v<mozilla::MarkerTiming>);
+ mozilla::MarkerTiming::UnsafeConstruct(
+ aMarkerTiming, mozilla::TimeStamp::Now(), mozilla::TimeStamp{},
+ mozilla::MarkerTiming::Phase::Instant);
+#endif
+}
+
+void gecko_profiler_construct_marker_timing_interval(
+ mozilla::MarkerTiming* aMarkerTiming, const mozilla::TimeStamp* aStartTime,
+ const mozilla::TimeStamp* aEndTime) {
+#ifdef MOZ_GECKO_PROFILER
+ static_assert(std::is_trivially_copyable_v<mozilla::MarkerTiming>);
+ mozilla::MarkerTiming::UnsafeConstruct(
+ aMarkerTiming, *aStartTime, *aEndTime,
+ mozilla::MarkerTiming::Phase::Interval);
+#endif
+}
+
+void gecko_profiler_construct_marker_timing_interval_until_now_from(
+ mozilla::MarkerTiming* aMarkerTiming,
+ const mozilla::TimeStamp* aStartTime) {
+#ifdef MOZ_GECKO_PROFILER
+ static_assert(std::is_trivially_copyable_v<mozilla::MarkerTiming>);
+ mozilla::MarkerTiming::UnsafeConstruct(
+ aMarkerTiming, *aStartTime, mozilla::TimeStamp::Now(),
+ mozilla::MarkerTiming::Phase::Interval);
+#endif
+}
+
+void gecko_profiler_construct_marker_timing_interval_start(
+ mozilla::MarkerTiming* aMarkerTiming, const mozilla::TimeStamp* aTime) {
+#ifdef MOZ_GECKO_PROFILER
+ static_assert(std::is_trivially_copyable_v<mozilla::MarkerTiming>);
+ mozilla::MarkerTiming::UnsafeConstruct(
+ aMarkerTiming, *aTime, mozilla::TimeStamp{},
+ mozilla::MarkerTiming::Phase::IntervalStart);
+#endif
+}
+
+void gecko_profiler_construct_marker_timing_interval_end(
+ mozilla::MarkerTiming* aMarkerTiming, const mozilla::TimeStamp* aTime) {
+#ifdef MOZ_GECKO_PROFILER
+ static_assert(std::is_trivially_copyable_v<mozilla::MarkerTiming>);
+ mozilla::MarkerTiming::UnsafeConstruct(
+ aMarkerTiming, mozilla::TimeStamp{}, *aTime,
+ mozilla::MarkerTiming::Phase::IntervalEnd);
+#endif
+}
+
+void gecko_profiler_destruct_marker_timing(
+ mozilla::MarkerTiming* aMarkerTiming) {
+#ifdef MOZ_GECKO_PROFILER
+ aMarkerTiming->~MarkerTiming();
+#endif
+}
+
+void gecko_profiler_construct_marker_schema(
+ mozilla::MarkerSchema* aMarkerSchema,
+ const mozilla::MarkerSchema::Location* aLocations, size_t aLength) {
+#ifdef MOZ_GECKO_PROFILER
+ new (aMarkerSchema) mozilla::MarkerSchema(aLocations, aLength);
+#endif
+}
+
+void gecko_profiler_construct_marker_schema_with_special_front_end_location(
+ mozilla::MarkerSchema* aMarkerSchema) {
+#ifdef MOZ_GECKO_PROFILER
+ new (aMarkerSchema)
+ mozilla::MarkerSchema(mozilla::MarkerSchema::SpecialFrontendLocation{});
+#endif
+}
+
+void gecko_profiler_destruct_marker_schema(
+ mozilla::MarkerSchema* aMarkerSchema) {
+#ifdef MOZ_GECKO_PROFILER
+ aMarkerSchema->~MarkerSchema();
+#endif
+}
+
+void gecko_profiler_marker_schema_set_chart_label(
+ mozilla::MarkerSchema* aSchema, const char* aLabel, size_t aLabelLength) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->SetChartLabel(std::string(aLabel, aLabelLength));
+#endif
+}
+
+void gecko_profiler_marker_schema_set_tooltip_label(
+ mozilla::MarkerSchema* aSchema, const char* aLabel, size_t aLabelLength) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->SetTooltipLabel(std::string(aLabel, aLabelLength));
+#endif
+}
+
+void gecko_profiler_marker_schema_set_table_label(
+ mozilla::MarkerSchema* aSchema, const char* aLabel, size_t aLabelLength) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->SetTableLabel(std::string(aLabel, aLabelLength));
+#endif
+}
+
+void gecko_profiler_marker_schema_set_all_labels(mozilla::MarkerSchema* aSchema,
+ const char* aLabel,
+ size_t aLabelLength) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->SetAllLabels(std::string(aLabel, aLabelLength));
+#endif
+}
+
+void gecko_profiler_marker_schema_add_key_format(
+ mozilla::MarkerSchema* aSchema, const char* aKey, size_t aKeyLength,
+ mozilla::MarkerSchema::Format aFormat) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->AddKeyFormat(std::string(aKey, aKeyLength), aFormat);
+#endif
+}
+
+void gecko_profiler_marker_schema_add_key_label_format(
+ mozilla::MarkerSchema* aSchema, const char* aKey, size_t aKeyLength,
+ const char* aLabel, size_t aLabelLength,
+ mozilla::MarkerSchema::Format aFormat) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->AddKeyLabelFormat(std::string(aKey, aKeyLength),
+ std::string(aLabel, aLabelLength), aFormat);
+#endif
+}
+
+void gecko_profiler_marker_schema_add_key_format_searchable(
+ mozilla::MarkerSchema* aSchema, const char* aKey, size_t aKeyLength,
+ mozilla::MarkerSchema::Format aFormat,
+ mozilla::MarkerSchema::Searchable aSearchable) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->AddKeyFormatSearchable(std::string(aKey, aKeyLength), aFormat,
+ aSearchable);
+#endif
+}
+
+void gecko_profiler_marker_schema_add_key_label_format_searchable(
+ mozilla::MarkerSchema* aSchema, const char* aKey, size_t aKeyLength,
+ const char* aLabel, size_t aLabelLength,
+ mozilla::MarkerSchema::Format aFormat,
+ mozilla::MarkerSchema::Searchable aSearchable) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->AddKeyLabelFormatSearchable(std::string(aKey, aKeyLength),
+ std::string(aLabel, aLabelLength),
+ aFormat, aSearchable);
+#endif
+}
+
+void gecko_profiler_marker_schema_add_static_label_value(
+ mozilla::MarkerSchema* aSchema, const char* aLabel, size_t aLabelLength,
+ const char* aValue, size_t aValueLength) {
+#ifdef MOZ_GECKO_PROFILER
+ aSchema->AddStaticLabelValue(std::string(aLabel, aLabelLength),
+ std::string(aValue, aValueLength));
+#endif
+}
+
+void gecko_profiler_marker_schema_stream(
+ mozilla::baseprofiler::SpliceableJSONWriter* aWriter, const char* aName,
+ size_t aNameLength, mozilla::MarkerSchema* aMarkerSchema,
+ void* aStreamedNamesSet) {
+#ifdef MOZ_GECKO_PROFILER
+ auto* streamedNames = static_cast<std::set<std::string>*>(aStreamedNamesSet);
+ // std::set.insert(T&&) returns a pair, its `second` is true if the element
+ // was actually inserted (i.e., it was not there yet.).
+ const bool didInsert =
+ streamedNames->insert(std::string(aName, aNameLength)).second;
+ if (didInsert) {
+ std::move(*aMarkerSchema)
+ .Stream(*aWriter, mozilla::Span(aName, aNameLength));
+ }
+#endif
+}
+
+void gecko_profiler_json_writer_int_property(
+ mozilla::baseprofiler::SpliceableJSONWriter* aWriter, const char* aName,
+ size_t aNameLength, int64_t aValue) {
+#ifdef MOZ_GECKO_PROFILER
+ aWriter->IntProperty(mozilla::Span(aName, aNameLength), aValue);
+#endif
+}
+
+void gecko_profiler_json_writer_float_property(
+ mozilla::baseprofiler::SpliceableJSONWriter* aWriter, const char* aName,
+ size_t aNameLength, double aValue) {
+#ifdef MOZ_GECKO_PROFILER
+ aWriter->DoubleProperty(mozilla::Span(aName, aNameLength), aValue);
+#endif
+}
+
+void gecko_profiler_json_writer_bool_property(
+ mozilla::baseprofiler::SpliceableJSONWriter* aWriter, const char* aName,
+ size_t aNameLength, bool aValue) {
+#ifdef MOZ_GECKO_PROFILER
+ aWriter->BoolProperty(mozilla::Span(aName, aNameLength), aValue);
+#endif
+}
+void gecko_profiler_json_writer_string_property(
+ mozilla::baseprofiler::SpliceableJSONWriter* aWriter, const char* aName,
+ size_t aNameLength, const char* aValue, size_t aValueLength) {
+#ifdef MOZ_GECKO_PROFILER
+ aWriter->StringProperty(mozilla::Span(aName, aNameLength),
+ mozilla::Span(aValue, aValueLength));
+#endif
+}
+
+void gecko_profiler_json_writer_null_property(
+ mozilla::baseprofiler::SpliceableJSONWriter* aWriter, const char* aName,
+ size_t aNameLength) {
+#ifdef MOZ_GECKO_PROFILER
+ aWriter->NullProperty(mozilla::Span(aName, aNameLength));
+#endif
+}
+
+void gecko_profiler_add_marker_untyped(
+ const char* aName, size_t aNameLength,
+ mozilla::baseprofiler::ProfilingCategoryPair aCategoryPair,
+ mozilla::MarkerTiming* aMarkerTiming,
+ mozilla::StackCaptureOptions aStackCaptureOptions) {
+#ifdef MOZ_GECKO_PROFILER
+ profiler_add_marker(
+ mozilla::ProfilerString8View(aName, aNameLength),
+ mozilla::MarkerCategory{aCategoryPair},
+ mozilla::MarkerOptions(
+ std::move(*aMarkerTiming),
+ mozilla::MarkerStack::WithCaptureOptions(aStackCaptureOptions)));
+#endif
+}
+
+void gecko_profiler_add_marker_text(
+ const char* aName, size_t aNameLength,
+ mozilla::baseprofiler::ProfilingCategoryPair aCategoryPair,
+ mozilla::MarkerTiming* aMarkerTiming,
+ mozilla::StackCaptureOptions aStackCaptureOptions, const char* aText,
+ size_t aTextLength) {
+#ifdef MOZ_GECKO_PROFILER
+ profiler_add_marker(
+ mozilla::ProfilerString8View(aName, aNameLength),
+ mozilla::MarkerCategory{aCategoryPair},
+ mozilla::MarkerOptions(
+ std::move(*aMarkerTiming),
+ mozilla::MarkerStack::WithCaptureOptions(aStackCaptureOptions)),
+ geckoprofiler::markers::TextMarker{},
+ mozilla::ProfilerString8View(aText, aTextLength));
+#endif
+}
+
+void gecko_profiler_add_marker(
+ const char* aName, size_t aNameLength,
+ mozilla::baseprofiler::ProfilingCategoryPair aCategoryPair,
+ mozilla::MarkerTiming* aMarkerTiming,
+ mozilla::StackCaptureOptions aStackCaptureOptions, uint8_t aMarkerTag,
+ const uint8_t* aPayload, size_t aPayloadSize) {
+#ifdef MOZ_GECKO_PROFILER
+ // Copy the marker timing and create the marker option.
+ mozilla::MarkerOptions markerOptions(
+ std::move(*aMarkerTiming),
+ mozilla::MarkerStack::WithCaptureOptions(aStackCaptureOptions));
+
+ // Currently it's not possible to add a threadId option, but we will
+ // have it soon.
+ if (markerOptions.ThreadId().IsUnspecified()) {
+ // If yet unspecified, set thread to this thread where the marker is added.
+ markerOptions.Set(mozilla::MarkerThreadId::CurrentThread());
+ }
+
+ auto& buffer = profiler_get_core_buffer();
+ mozilla::Span payload(aPayload, aPayloadSize);
+
+ mozilla::StackCaptureOptions captureOptions =
+ markerOptions.Stack().CaptureOptions();
+ if (captureOptions != mozilla::StackCaptureOptions::NoStack &&
+ // Do not capture a stack if the NoMarkerStacks feature is set.
+ profiler_active_without_feature(ProfilerFeature::NoMarkerStacks)) {
+ // A capture was requested, let's attempt to do it here&now. This avoids a
+ // lot of allocations that would be necessary if capturing a backtrace
+ // separately.
+ // TODO use a local on-stack byte buffer to remove last allocation.
+ // TODO reduce internal profiler stack levels, see bug 1659872.
+ mozilla::ProfileBufferChunkManagerSingle chunkManager(
+ mozilla::ProfileBufferChunkManager::scExpectedMaximumStackSize);
+ mozilla::ProfileChunkedBuffer chunkedBuffer(
+ mozilla::ProfileChunkedBuffer::ThreadSafety::WithoutMutex,
+ chunkManager);
+ markerOptions.StackRef().UseRequestedBacktrace(
+ profiler_capture_backtrace_into(chunkedBuffer, captureOptions)
+ ? &chunkedBuffer
+ : nullptr);
+
+ // This call must be made from here, while chunkedBuffer is in scope.
+ buffer.PutObjects(
+ mozilla::ProfileBufferEntryKind::Marker, markerOptions,
+ mozilla::ProfilerString8View(aName, aNameLength),
+ mozilla::MarkerCategory{aCategoryPair},
+ mozilla::base_profiler_markers_detail::Streaming::DeserializerTag(
+ aMarkerTag),
+ mozilla::MarkerPayloadType::Rust, payload);
+ return;
+ }
+
+ buffer.PutObjects(
+ mozilla::ProfileBufferEntryKind::Marker, markerOptions,
+ mozilla::ProfilerString8View(aName, aNameLength),
+ mozilla::MarkerCategory{aCategoryPair},
+ mozilla::base_profiler_markers_detail::Streaming::DeserializerTag(
+ aMarkerTag),
+ mozilla::MarkerPayloadType::Rust, payload);
+#endif
+}
diff --git a/tools/profiler/core/ProfilerCodeAddressService.cpp b/tools/profiler/core/ProfilerCodeAddressService.cpp
new file mode 100644
index 0000000000..5a65e06379
--- /dev/null
+++ b/tools/profiler/core/ProfilerCodeAddressService.cpp
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ProfilerCodeAddressService.h"
+
+#include "platform.h"
+#include "mozilla/StackWalk.h"
+
+using namespace mozilla;
+
+#if defined(XP_LINUX) || defined(XP_FREEBSD)
+static char* SearchSymbolTable(SymbolTable& aTable, uint32_t aOffset) {
+ size_t index;
+ bool exact =
+ BinarySearch(aTable.mAddrs, 0, aTable.mAddrs.Length(), aOffset, &index);
+
+ if (index == 0 && !exact) {
+ // Our offset is before the first symbol in the table; no result.
+ return nullptr;
+ }
+
+ // Extract the (mangled) symbol name out of the string table.
+ auto strings = reinterpret_cast<char*>(aTable.mBuffer.Elements());
+ nsCString symbol;
+ symbol.Append(strings + aTable.mIndex[index - 1],
+ aTable.mIndex[index] - aTable.mIndex[index - 1]);
+
+ // First try demangling as a Rust identifier.
+ char demangled[1024];
+ if (!profiler_demangle_rust(symbol.get(), demangled,
+ ArrayLength(demangled))) {
+ // Then as a C++ identifier.
+ DemangleSymbol(symbol.get(), demangled, ArrayLength(demangled));
+ }
+ demangled[ArrayLength(demangled) - 1] = '\0';
+
+ // Use the mangled name if we didn't successfully demangle.
+ return strdup(demangled[0] != '\0' ? demangled : symbol.get());
+}
+#endif
+
+bool ProfilerCodeAddressService::GetFunction(const void* aPc,
+ nsACString& aResult) {
+ Entry& entry = GetEntry(aPc);
+
+#if defined(XP_LINUX) || defined(XP_FREEBSD)
+ // On Linux, most symbols will not be found by the MozDescribeCodeAddress call
+ // that GetEntry does. So we read the symbol table directly from the ELF
+ // image.
+
+ // SymbolTable currently assumes library offsets will not be larger than
+ // 4 GiB.
+ if (entry.mLOffset <= 0xFFFFFFFF && !entry.mFunction) {
+ auto p = mSymbolTables.lookupForAdd(entry.mLibrary);
+ if (!p) {
+ if (!mSymbolTables.add(p, entry.mLibrary, SymbolTable())) {
+ MOZ_CRASH("ProfilerCodeAddressService OOM");
+ }
+ profiler_get_symbol_table(entry.mLibrary, nullptr, &p->value());
+ }
+ entry.mFunction =
+ SearchSymbolTable(p->value(), static_cast<uint32_t>(entry.mLOffset));
+ }
+#endif
+
+ if (!entry.mFunction || entry.mFunction[0] == '\0') {
+ return false;
+ }
+
+ aResult = nsDependentCString(entry.mFunction);
+ return true;
+}
diff --git a/tools/profiler/core/ProfilerMarkers.cpp b/tools/profiler/core/ProfilerMarkers.cpp
new file mode 100644
index 0000000000..7c299678d1
--- /dev/null
+++ b/tools/profiler/core/ProfilerMarkers.cpp
@@ -0,0 +1,32 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ProfilerMarkers.h"
+
+template mozilla::ProfileBufferBlockIndex AddMarkerToBuffer(
+ mozilla::ProfileChunkedBuffer&, const mozilla::ProfilerString8View&,
+ const mozilla::MarkerCategory&, mozilla::MarkerOptions&&,
+ mozilla::baseprofiler::markers::NoPayload);
+
+template mozilla::ProfileBufferBlockIndex AddMarkerToBuffer(
+ mozilla::ProfileChunkedBuffer&, const mozilla::ProfilerString8View&,
+ const mozilla::MarkerCategory&, mozilla::MarkerOptions&&,
+ mozilla::baseprofiler::markers::TextMarker, const std::string&);
+
+template mozilla::ProfileBufferBlockIndex profiler_add_marker(
+ const mozilla::ProfilerString8View&, const mozilla::MarkerCategory&,
+ mozilla::MarkerOptions&&, mozilla::baseprofiler::markers::TextMarker,
+ const std::string&);
+
+template mozilla::ProfileBufferBlockIndex profiler_add_marker(
+ const mozilla::ProfilerString8View&, const mozilla::MarkerCategory&,
+ mozilla::MarkerOptions&&, mozilla::baseprofiler::markers::TextMarker,
+ const nsCString&);
+
+template mozilla::ProfileBufferBlockIndex profiler_add_marker(
+ const mozilla::ProfilerString8View&, const mozilla::MarkerCategory&,
+ mozilla::MarkerOptions&&, mozilla::baseprofiler::markers::Tracing,
+ const mozilla::ProfilerString8View&);
diff --git a/tools/profiler/core/ProfilerThreadRegistration.cpp b/tools/profiler/core/ProfilerThreadRegistration.cpp
new file mode 100644
index 0000000000..c81d00573d
--- /dev/null
+++ b/tools/profiler/core/ProfilerThreadRegistration.cpp
@@ -0,0 +1,198 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ProfilerThreadRegistration.h"
+
+#include "mozilla/ProfilerMarkers.h"
+#include "mozilla/ProfilerThreadRegistry.h"
+#include "nsString.h"
+#ifdef MOZ_GECKO_PROFILER
+# include "platform.h"
+#else
+# define profiler_mark_thread_awake()
+# define profiler_mark_thread_asleep()
+#endif
+
+namespace mozilla::profiler {
+
+/* static */
+MOZ_THREAD_LOCAL(ThreadRegistration*) ThreadRegistration::tlsThreadRegistration;
+
+ThreadRegistration::ThreadRegistration(const char* aName, const void* aStackTop)
+ : mData(aName, aStackTop) {
+ auto* tls = GetTLS();
+ if (MOZ_UNLIKELY(!tls)) {
+ // No TLS, nothing can be done without it.
+ return;
+ }
+
+ if (ThreadRegistration* rootRegistration = tls->get(); rootRegistration) {
+ // This is a nested ThreadRegistration object, so the thread is already
+ // registered in the TLS and ThreadRegistry and we don't need to register
+ // again.
+ MOZ_ASSERT(
+ mData.Info().ThreadId() == rootRegistration->mData.Info().ThreadId(),
+ "Thread being re-registered has changed its TID");
+ // TODO: Use new name. This is currently not possible because the
+ // TLS-stored RegisteredThread's ThreadInfo cannot be changed.
+ // In the meantime, we record a marker that could be used in the frontend.
+ PROFILER_MARKER_TEXT("Nested ThreadRegistration()", OTHER_Profiling,
+ MarkerOptions{},
+ ProfilerString8View::WrapNullTerminatedString(aName));
+ return;
+ }
+
+ tls->set(this);
+ ThreadRegistry::Register(OnThreadRef{*this});
+ profiler_mark_thread_awake();
+}
+
+ThreadRegistration::~ThreadRegistration() {
+ MOZ_ASSERT(profiler_current_thread_id() == mData.mInfo.ThreadId(),
+ "ThreadRegistration must be destroyed on its thread");
+ MOZ_ASSERT(!mDataMutex.IsLockedOnCurrentThread(),
+ "Mutex shouldn't be locked here, as it's about to be destroyed "
+ "in ~ThreadRegistration()");
+ auto* tls = GetTLS();
+ if (MOZ_UNLIKELY(!tls)) {
+ // No TLS, nothing can be done without it.
+ return;
+ }
+
+ if (ThreadRegistration* rootRegistration = tls->get(); rootRegistration) {
+ if (rootRegistration != this) {
+ // `this` is not in the TLS, so it was a nested registration, there is
+ // nothing to unregister yet.
+ PROFILER_MARKER_TEXT(
+ "Nested ~ThreadRegistration()", OTHER_Profiling, MarkerOptions{},
+ ProfilerString8View::WrapNullTerminatedString(mData.Info().Name()));
+ return;
+ }
+
+ profiler_mark_thread_asleep();
+#ifdef NIGHTLY_BUILD
+ mData.RecordWakeCount();
+#endif
+ ThreadRegistry::Unregister(OnThreadRef{*this});
+#ifdef DEBUG
+ // After ThreadRegistry::Unregister, other threads should not be able to
+ // find this ThreadRegistration, and shouldn't have kept any reference to
+ // it across the ThreadRegistry mutex.
+ MOZ_ASSERT(mDataMutex.TryLock(),
+ "Mutex shouldn't be locked in any thread, as it's about to be "
+ "destroyed in ~ThreadRegistration()");
+ // Undo the above successful TryLock.
+ mDataMutex.Unlock();
+#endif // DEBUG
+
+ tls->set(nullptr);
+ return;
+ }
+
+ // Already removed from the TLS!? This could happen with improperly-nested
+ // register/unregister calls, and the first ThreadRegistration has already
+ // been unregistered.
+ // We cannot record a marker on this thread because it was already
+ // unregistered. Send it to the main thread (unless this *is* already the
+ // main thread, which has been unregistered); this may be useful to catch
+ // mismatched register/unregister pairs in Firefox.
+ if (!profiler_is_main_thread()) {
+ nsAutoCString threadId("thread id: ");
+ threadId.AppendInt(profiler_current_thread_id().ToNumber());
+ threadId.AppendLiteral(", name: \"");
+ threadId.AppendASCII(mData.Info().Name());
+ threadId.AppendLiteral("\"");
+ PROFILER_MARKER_TEXT(
+ "~ThreadRegistration() but TLS is empty", OTHER_Profiling,
+ MarkerOptions(MarkerThreadId::MainThread(), MarkerStack::Capture()),
+ threadId);
+ }
+}
+
+/* static */
+ProfilingStack* ThreadRegistration::RegisterThread(const char* aName,
+ const void* aStackTop) {
+ auto* tls = GetTLS();
+ if (MOZ_UNLIKELY(!tls)) {
+ // No TLS, nothing can be done without it.
+ return nullptr;
+ }
+
+ if (ThreadRegistration* rootRegistration = tls->get(); rootRegistration) {
+ // Already registered, record the extra depth to ignore the matching
+ // UnregisterThread.
+ ++rootRegistration->mOtherRegistrations;
+ // TODO: Use new name. This is currently not possible because the
+ // TLS-stored RegisteredThread's ThreadInfo cannot be changed.
+ // In the meantime, we record a marker that could be used in the frontend.
+ PROFILER_MARKER_TEXT("Nested ThreadRegistration::RegisterThread()",
+ OTHER_Profiling, MarkerOptions{},
+ ProfilerString8View::WrapNullTerminatedString(aName));
+ return &rootRegistration->mData.mProfilingStack;
+ }
+
+ // Create on heap, it self-registers with the TLS (its effective owner, so
+ // we can forget the pointer after this), and with the Profiler.
+ ThreadRegistration* tr = new ThreadRegistration(aName, aStackTop);
+ tr->mIsOnHeap = true;
+ return &tr->mData.mProfilingStack;
+}
+
+/* static */
+void ThreadRegistration::UnregisterThread() {
+ auto* tls = GetTLS();
+ if (MOZ_UNLIKELY(!tls)) {
+ // No TLS, nothing can be done without it.
+ return;
+ }
+
+ if (ThreadRegistration* rootRegistration = tls->get(); rootRegistration) {
+ if (rootRegistration->mOtherRegistrations != 0) {
+ // This is assumed to be a matching UnregisterThread() for a nested
+ // RegisterThread(). Decrease depth and we're done.
+ --rootRegistration->mOtherRegistrations;
+ // We don't know what name was used in the related RegisterThread().
+ PROFILER_MARKER_UNTYPED("Nested ThreadRegistration::UnregisterThread()",
+ OTHER_Profiling);
+ return;
+ }
+
+ if (!rootRegistration->mIsOnHeap) {
+ // The root registration was not added by `RegisterThread()`, so it
+ // shouldn't be deleted!
+ // This could happen if there are un-paired `UnregisterThread` calls when
+ // the initial registration (still alive) was done on the stack. We don't
+ // know what name was used in the related RegisterThread().
+ PROFILER_MARKER_UNTYPED("Excess ThreadRegistration::UnregisterThread()",
+ OTHER_Profiling, MarkerStack::Capture());
+ return;
+ }
+
+ // This is the last `UnregisterThread()` that should match the first
+ // `RegisterThread()` that created this ThreadRegistration on the heap.
+ // Just delete this root registration, it will de-register itself from the
+ // TLS (and from the Profiler).
+ delete rootRegistration;
+ return;
+ }
+
+ // There is no known ThreadRegistration for this thread, ignore this
+ // request. We cannot record a marker on this thread because it was already
+ // unregistered. Send it to the main thread (unless this *is* already the
+ // main thread, which has been unregistered); this may be useful to catch
+ // mismatched register/unregister pairs in Firefox.
+ if (!profiler_is_main_thread()) {
+ nsAutoCString threadId("thread id: ");
+ threadId.AppendInt(profiler_current_thread_id().ToNumber());
+ PROFILER_MARKER_TEXT(
+ "ThreadRegistration::UnregisterThread() but TLS is empty",
+ OTHER_Profiling,
+ MarkerOptions(MarkerThreadId::MainThread(), MarkerStack::Capture()),
+ threadId);
+ }
+}
+
+} // namespace mozilla::profiler
diff --git a/tools/profiler/core/ProfilerThreadRegistrationData.cpp b/tools/profiler/core/ProfilerThreadRegistrationData.cpp
new file mode 100644
index 0000000000..e70f9e749a
--- /dev/null
+++ b/tools/profiler/core/ProfilerThreadRegistrationData.cpp
@@ -0,0 +1,303 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ProfilerThreadRegistrationData.h"
+
+#include "mozilla/FOGIPC.h"
+#include "mozilla/glean/GleanMetrics.h"
+#include "mozilla/ProfilerMarkers.h"
+#include "js/AllocationRecording.h"
+#include "js/ProfilingStack.h"
+
+#if defined(XP_WIN)
+# include <windows.h>
+#elif defined(XP_DARWIN)
+# include <pthread.h>
+#endif
+
+#ifdef NIGHTLY_BUILD
+namespace geckoprofiler::markers {
+
+using namespace mozilla;
+
+struct ThreadCpuUseMarker {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("ThreadCpuUse");
+ }
+ static void StreamJSONMarkerData(baseprofiler::SpliceableJSONWriter& aWriter,
+ ProfilerThreadId aThreadId,
+ int64_t aCpuTimeMs, int64_t aWakeUps,
+ const ProfilerString8View& aThreadName) {
+ aWriter.IntProperty("threadId", static_cast<int64_t>(aThreadId.ToNumber()));
+ aWriter.IntProperty("time", aCpuTimeMs);
+ aWriter.IntProperty("wakeups", aWakeUps);
+ aWriter.StringProperty("label", aThreadName);
+ }
+ static MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::MarkerChart, MS::Location::MarkerTable};
+ schema.AddKeyLabelFormat("time", "CPU Time", MS::Format::Milliseconds);
+ schema.AddKeyLabelFormat("wakeups", "Wake ups", MS::Format::Integer);
+ schema.SetTooltipLabel("{marker.name} - {marker.data.label}");
+ schema.SetTableLabel(
+ "{marker.name} - {marker.data.label}: {marker.data.time} of CPU time, "
+ "{marker.data.wakeups} wake ups");
+ return schema;
+ }
+};
+
+} // namespace geckoprofiler::markers
+#endif
+
+namespace mozilla::profiler {
+
+ThreadRegistrationData::ThreadRegistrationData(const char* aName,
+ const void* aStackTop)
+ : mInfo(aName),
+ mPlatformData(mInfo.ThreadId()),
+ mStackTop(
+#if defined(XP_WIN)
+ // We don't have to guess on Windows.
+ reinterpret_cast<const void*>(
+ reinterpret_cast<PNT_TIB>(NtCurrentTeb())->StackBase)
+#elif defined(XP_DARWIN)
+ // We don't have to guess on Mac/Darwin.
+ reinterpret_cast<const void*>(
+ pthread_get_stackaddr_np(pthread_self()))
+#else
+ // Otherwise use the given guess.
+ aStackTop
+#endif
+ ) {
+}
+
+// This is a simplified version of profiler_add_marker that can be easily passed
+// into the JS engine.
+static void profiler_add_js_marker(const char* aMarkerName,
+ const char* aMarkerText) {
+ PROFILER_MARKER_TEXT(
+ mozilla::ProfilerString8View::WrapNullTerminatedString(aMarkerName), JS,
+ {}, mozilla::ProfilerString8View::WrapNullTerminatedString(aMarkerText));
+}
+
+static void profiler_add_js_allocation_marker(JS::RecordAllocationInfo&& info) {
+ if (!profiler_thread_is_being_profiled_for_markers()) {
+ return;
+ }
+
+ struct JsAllocationMarker {
+ static constexpr mozilla::Span<const char> MarkerTypeName() {
+ return mozilla::MakeStringSpan("JS allocation");
+ }
+ static void StreamJSONMarkerData(
+ mozilla::baseprofiler::SpliceableJSONWriter& aWriter,
+ const mozilla::ProfilerString16View& aTypeName,
+ const mozilla::ProfilerString8View& aClassName,
+ const mozilla::ProfilerString16View& aDescriptiveTypeName,
+ const mozilla::ProfilerString8View& aCoarseType, uint64_t aSize,
+ bool aInNursery) {
+ if (aClassName.Length() != 0) {
+ aWriter.StringProperty("className", aClassName);
+ }
+ if (aTypeName.Length() != 0) {
+ aWriter.StringProperty("typeName", NS_ConvertUTF16toUTF8(aTypeName));
+ }
+ if (aDescriptiveTypeName.Length() != 0) {
+ aWriter.StringProperty("descriptiveTypeName",
+ NS_ConvertUTF16toUTF8(aDescriptiveTypeName));
+ }
+ aWriter.StringProperty("coarseType", aCoarseType);
+ aWriter.IntProperty("size", aSize);
+ aWriter.BoolProperty("inNursery", aInNursery);
+ }
+ static mozilla::MarkerSchema MarkerTypeDisplay() {
+ return mozilla::MarkerSchema::SpecialFrontendLocation{};
+ }
+ };
+
+ profiler_add_marker(
+ "JS allocation", geckoprofiler::category::JS,
+ mozilla::MarkerStack::Capture(), JsAllocationMarker{},
+ mozilla::ProfilerString16View::WrapNullTerminatedString(info.typeName),
+ mozilla::ProfilerString8View::WrapNullTerminatedString(info.className),
+ mozilla::ProfilerString16View::WrapNullTerminatedString(
+ info.descriptiveTypeName),
+ mozilla::ProfilerString8View::WrapNullTerminatedString(info.coarseType),
+ info.size, info.inNursery);
+}
+
+void ThreadRegistrationLockedRWFromAnyThread::SetProfilingFeaturesAndData(
+ ThreadProfilingFeatures aProfilingFeatures,
+ ProfiledThreadData* aProfiledThreadData, const PSAutoLock&) {
+ MOZ_ASSERT(mProfilingFeatures == ThreadProfilingFeatures::NotProfiled);
+ mProfilingFeatures = aProfilingFeatures;
+
+ MOZ_ASSERT(!mProfiledThreadData);
+ MOZ_ASSERT(aProfiledThreadData);
+ mProfiledThreadData = aProfiledThreadData;
+
+ if (mJSContext) {
+ // The thread is now being profiled, and we already have a JSContext,
+ // allocate a JsFramesBuffer to allow profiler-unlocked on-thread sampling.
+ MOZ_ASSERT(!mJsFrameBuffer);
+ mJsFrameBuffer = new JsFrame[MAX_JS_FRAMES];
+ }
+
+ // Check invariants.
+ MOZ_ASSERT((mProfilingFeatures != ThreadProfilingFeatures::NotProfiled) ==
+ !!mProfiledThreadData);
+ MOZ_ASSERT((mJSContext &&
+ (mProfilingFeatures != ThreadProfilingFeatures::NotProfiled)) ==
+ !!mJsFrameBuffer);
+}
+
+void ThreadRegistrationLockedRWFromAnyThread::ClearProfilingFeaturesAndData(
+ const PSAutoLock&) {
+ mProfilingFeatures = ThreadProfilingFeatures::NotProfiled;
+ mProfiledThreadData = nullptr;
+
+ if (mJsFrameBuffer) {
+ delete[] mJsFrameBuffer;
+ mJsFrameBuffer = nullptr;
+ }
+
+ // Check invariants.
+ MOZ_ASSERT((mProfilingFeatures != ThreadProfilingFeatures::NotProfiled) ==
+ !!mProfiledThreadData);
+ MOZ_ASSERT((mJSContext &&
+ (mProfilingFeatures != ThreadProfilingFeatures::NotProfiled)) ==
+ !!mJsFrameBuffer);
+}
+
+void ThreadRegistrationLockedRWOnThread::SetJSContext(JSContext* aJSContext) {
+ MOZ_ASSERT(aJSContext && !mJSContext);
+
+ mJSContext = aJSContext;
+
+ if (mProfiledThreadData) {
+ MOZ_ASSERT((mProfilingFeatures != ThreadProfilingFeatures::NotProfiled) ==
+ !!mProfiledThreadData);
+ // We now have a JSContext, and the thread is already being profiled,
+ // allocate a JsFramesBuffer to allow profiler-unlocked on-thread sampling.
+ MOZ_ASSERT(!mJsFrameBuffer);
+ mJsFrameBuffer = new JsFrame[MAX_JS_FRAMES];
+ }
+
+ // We give the JS engine a non-owning reference to the ProfilingStack. It's
+ // important that the JS engine doesn't touch this once the thread dies.
+ js::SetContextProfilingStack(aJSContext, &ProfilingStackRef());
+
+ // Check invariants.
+ MOZ_ASSERT((mJSContext &&
+ (mProfilingFeatures != ThreadProfilingFeatures::NotProfiled)) ==
+ !!mJsFrameBuffer);
+}
+
+void ThreadRegistrationLockedRWOnThread::ClearJSContext() {
+ mJSContext = nullptr;
+
+ if (mJsFrameBuffer) {
+ delete[] mJsFrameBuffer;
+ mJsFrameBuffer = nullptr;
+ }
+
+ // Check invariants.
+ MOZ_ASSERT((mJSContext &&
+ (mProfilingFeatures != ThreadProfilingFeatures::NotProfiled)) ==
+ !!mJsFrameBuffer);
+}
+
+void ThreadRegistrationLockedRWOnThread::PollJSSampling() {
+ // We can't start/stop profiling until we have the thread's JSContext.
+ if (mJSContext) {
+ // It is possible for mJSSampling to go through the following sequences.
+ //
+ // - INACTIVE, ACTIVE_REQUESTED, INACTIVE_REQUESTED, INACTIVE
+ //
+ // - ACTIVE, INACTIVE_REQUESTED, ACTIVE_REQUESTED, ACTIVE
+ //
+ // Therefore, the if and else branches here aren't always interleaved.
+ // This is ok because the JS engine can handle that.
+ //
+ if (mJSSampling == ACTIVE_REQUESTED) {
+ mJSSampling = ACTIVE;
+ js::EnableContextProfilingStack(mJSContext, true);
+
+ if (JSAllocationsEnabled()) {
+ // TODO - This probability should not be hardcoded. See Bug 1547284.
+ JS::EnableRecordingAllocations(mJSContext,
+ profiler_add_js_allocation_marker, 0.01);
+ }
+ js::RegisterContextProfilingEventMarker(mJSContext,
+ profiler_add_js_marker);
+
+ } else if (mJSSampling == INACTIVE_REQUESTED) {
+ mJSSampling = INACTIVE;
+ js::EnableContextProfilingStack(mJSContext, false);
+
+ if (JSAllocationsEnabled()) {
+ JS::DisableRecordingAllocations(mJSContext);
+ }
+ }
+ }
+}
+
+#ifdef NIGHTLY_BUILD
+void ThreadRegistrationUnlockedConstReaderAndAtomicRW::RecordWakeCount() const {
+ baseprofiler::detail::BaseProfilerAutoLock lock(mRecordWakeCountMutex);
+
+ uint64_t newWakeCount = mWakeCount - mAlreadyRecordedWakeCount;
+ if (newWakeCount == 0 && mSleep != AWAKE) {
+ // If no new wake-up was counted, and the thread is not marked awake,
+ // we can be pretty sure there is no CPU activity to record.
+ // Threads that are never annotated as asleep/awake (typically rust threads)
+ // start as awake.
+ return;
+ }
+
+ uint64_t cpuTimeNs;
+ if (!GetCpuTimeSinceThreadStartInNs(&cpuTimeNs, PlatformDataCRef())) {
+ cpuTimeNs = 0;
+ }
+
+ constexpr uint64_t NS_PER_MS = 1'000'000;
+ uint64_t cpuTimeMs = cpuTimeNs / NS_PER_MS;
+
+ uint64_t newCpuTimeMs = MOZ_LIKELY(cpuTimeMs > mAlreadyRecordedCpuTimeInMs)
+ ? cpuTimeMs - mAlreadyRecordedCpuTimeInMs
+ : 0;
+
+ if (!newWakeCount && !newCpuTimeMs) {
+ // Nothing to report, avoid computing the Glean friendly thread name.
+ return;
+ }
+
+ nsAutoCString threadName(mInfo.Name());
+ // Trim the trailing number of threads that are part of a thread pool.
+ for (size_t length = threadName.Length(); length > 0; --length) {
+ const char c = threadName.CharAt(length - 1);
+ if ((c < '0' || c > '9') && c != '#' && c != ' ') {
+ if (length != threadName.Length()) {
+ threadName.SetLength(length);
+ }
+ break;
+ }
+ }
+
+ mozilla::glean::RecordThreadCpuUse(threadName, newCpuTimeMs, newWakeCount);
+
+ // The thread id is provided as part of the payload because this call is
+ // inside a ThreadRegistration data function, which could be invoked with
+ // the ThreadRegistry locked. We cannot call any function/option that could
+ // attempt to lock the ThreadRegistry again, like MarkerThreadId.
+ PROFILER_MARKER("Thread CPU use", OTHER, {}, ThreadCpuUseMarker,
+ mInfo.ThreadId(), newCpuTimeMs, newWakeCount, threadName);
+ mAlreadyRecordedCpuTimeInMs = cpuTimeMs;
+ mAlreadyRecordedWakeCount += newWakeCount;
+}
+#endif
+
+} // namespace mozilla::profiler
diff --git a/tools/profiler/core/ProfilerThreadRegistry.cpp b/tools/profiler/core/ProfilerThreadRegistry.cpp
new file mode 100644
index 0000000000..cb456471d9
--- /dev/null
+++ b/tools/profiler/core/ProfilerThreadRegistry.cpp
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ProfilerThreadRegistry.h"
+
+namespace mozilla::profiler {
+
+/* static */
+ThreadRegistry::RegistryContainer ThreadRegistry::sRegistryContainer;
+
+/* static */
+ThreadRegistry::RegistryMutex ThreadRegistry::sRegistryMutex;
+
+#if !defined(MOZ_GECKO_PROFILER)
+// When MOZ_GECKO_PROFILER is not defined, the function definitions in
+// platform.cpp are not built, causing link errors. So we keep these simple
+// definitions here.
+
+/* static */
+void ThreadRegistry::Register(ThreadRegistration::OnThreadRef aOnThreadRef) {
+ LockedRegistry lock;
+ MOZ_RELEASE_ASSERT(sRegistryContainer.append(OffThreadRef{aOnThreadRef}));
+}
+
+/* static */
+void ThreadRegistry::Unregister(ThreadRegistration::OnThreadRef aOnThreadRef) {
+ LockedRegistry lock;
+ for (OffThreadRef& thread : sRegistryContainer) {
+ if (thread.IsPointingAt(*aOnThreadRef.mThreadRegistration)) {
+ sRegistryContainer.erase(&thread);
+ break;
+ }
+ }
+}
+#endif // !defined(MOZ_GECKO_PROFILER)
+
+} // namespace mozilla::profiler
diff --git a/tools/profiler/core/ProfilerUtils.cpp b/tools/profiler/core/ProfilerUtils.cpp
new file mode 100644
index 0000000000..6a46878ad7
--- /dev/null
+++ b/tools/profiler/core/ProfilerUtils.cpp
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// This file implements functions from ProfilerUtils.h on all platforms.
+// Functions with platform-specific implementations are separated in #if blocks
+// below, with each block being self-contained with all the #includes and
+// definitions it needs, to keep platform code easier to maintain in isolation.
+
+#include "mozilla/ProfilerUtils.h"
+
+// --------------------------------------------- Windows process & thread ids
+#if defined(XP_WIN)
+
+# include <process.h>
+# include <processthreadsapi.h>
+
+ProfilerProcessId profiler_current_process_id() {
+ return ProfilerProcessId::FromNativeId(_getpid());
+}
+
+ProfilerThreadId profiler_current_thread_id() {
+ static_assert(std::is_same_v<ProfilerThreadId::NativeType,
+ decltype(GetCurrentThreadId())>,
+ "ProfilerThreadId::NativeType must be exactly the type "
+ "returned by GetCurrentThreadId()");
+ return ProfilerThreadId::FromNativeId(GetCurrentThreadId());
+}
+
+// --------------------------------------------- Non-Windows process id
+#else
+// All non-Windows platforms are assumed to be POSIX, which has getpid().
+
+# include <unistd.h>
+
+ProfilerProcessId profiler_current_process_id() {
+ return ProfilerProcessId::FromNativeId(getpid());
+}
+
+// --------------------------------------------- Non-Windows thread id
+// ------------------------------------------------------- macOS
+# if defined(XP_MACOSX)
+
+# include <pthread.h>
+
+ProfilerThreadId profiler_current_thread_id() {
+ uint64_t tid;
+ if (pthread_threadid_np(nullptr, &tid) != 0) {
+ return ProfilerThreadId{};
+ }
+ return ProfilerThreadId::FromNativeId(tid);
+}
+
+// ------------------------------------------------------- Android
+// Test Android before Linux, because Linux includes Android.
+# elif defined(__ANDROID__) || defined(ANDROID)
+
+ProfilerThreadId profiler_current_thread_id() {
+ return ProfilerThreadId::FromNativeId(gettid());
+}
+
+// ------------------------------------------------------- Linux
+# elif defined(XP_LINUX)
+
+# include <sys/syscall.h>
+
+ProfilerThreadId profiler_current_thread_id() {
+ // glibc doesn't provide a wrapper for gettid() until 2.30
+ return ProfilerThreadId::FromNativeId(syscall(SYS_gettid));
+}
+
+// ------------------------------------------------------- FreeBSD
+# elif defined(XP_FREEBSD)
+
+# include <sys/thr.h>
+
+ProfilerThreadId profiler_current_thread_id() {
+ long id;
+ if (thr_self(&id) != 0) {
+ return ProfilerThreadId{};
+ }
+ return ProfilerThreadId::FromNativeId(id);
+}
+
+// ------------------------------------------------------- Others
+# else
+
+ProfilerThreadId profiler_current_thread_id() {
+ return ProfilerThreadId::FromNativeId(std::this_thread::get_id());
+}
+
+# endif
+#endif // End of non-XP_WIN.
+
+// --------------------------------------------- Platform-agnostic definitions
+
+#include "MainThreadUtils.h"
+#include "mozilla/Assertions.h"
+
+static ProfilerThreadId scProfilerMainThreadId;
+
+void profiler_init_main_thread_id() {
+ MOZ_ASSERT(NS_IsMainThread());
+ mozilla::baseprofiler::profiler_init_main_thread_id();
+ if (!scProfilerMainThreadId.IsSpecified()) {
+ scProfilerMainThreadId = profiler_current_thread_id();
+ }
+}
+
+[[nodiscard]] ProfilerThreadId profiler_main_thread_id() {
+ return scProfilerMainThreadId;
+}
+
+[[nodiscard]] bool profiler_is_main_thread() {
+ return profiler_current_thread_id() == scProfilerMainThreadId;
+}
diff --git a/tools/profiler/core/VTuneProfiler.cpp b/tools/profiler/core/VTuneProfiler.cpp
new file mode 100644
index 0000000000..58a39c51ee
--- /dev/null
+++ b/tools/profiler/core/VTuneProfiler.cpp
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifdef XP_WIN
+# undef UNICODE
+# undef _UNICODE
+#endif
+
+#include "VTuneProfiler.h"
+#include "mozilla/Bootstrap.h"
+#include <memory>
+
+VTuneProfiler* VTuneProfiler::mInstance = nullptr;
+
+void VTuneProfiler::Initialize() {
+ // This is just a 'dirty trick' to find out if the ittnotify DLL was found.
+ // If it wasn't this function always returns 0, otherwise it returns
+ // incrementing numbers, if the library was found this wastes 2 events but
+ // that should be okay.
+ __itt_event testEvent =
+ __itt_event_create("Test event", strlen("Test event"));
+ testEvent = __itt_event_create("Test event 2", strlen("Test event 2"));
+
+ if (testEvent) {
+ mInstance = new VTuneProfiler();
+ }
+}
+
+void VTuneProfiler::Shutdown() {}
+
+void VTuneProfiler::TraceInternal(const char* aName, TracingKind aKind) {
+ std::string str(aName);
+
+ auto iter = mStrings.find(str);
+
+ __itt_event event;
+ if (iter != mStrings.end()) {
+ event = iter->second;
+ } else {
+ event = __itt_event_create(aName, str.length());
+ mStrings.insert({str, event});
+ }
+
+ if (aKind == TRACING_INTERVAL_START || aKind == TRACING_EVENT) {
+ // VTune will consider starts not matched with an end to be single point in
+ // time events.
+ __itt_event_start(event);
+ } else {
+ __itt_event_end(event);
+ }
+}
+
+void VTuneProfiler::RegisterThreadInternal(const char* aName) {
+ std::string str(aName);
+
+ if (!str.compare("GeckoMain")) {
+ // Process main thread.
+ switch (XRE_GetProcessType()) {
+ case GeckoProcessType::GeckoProcessType_Default:
+ __itt_thread_set_name("Main Process");
+ break;
+ case GeckoProcessType::GeckoProcessType_Content:
+ __itt_thread_set_name("Content Process");
+ break;
+ case GeckoProcessType::GeckoProcessType_GMPlugin:
+ __itt_thread_set_name("Plugin Process");
+ break;
+ case GeckoProcessType::GeckoProcessType_GPU:
+ __itt_thread_set_name("GPU Process");
+ break;
+ default:
+ __itt_thread_set_name("Unknown Process");
+ }
+ return;
+ }
+ __itt_thread_set_name(aName);
+}
diff --git a/tools/profiler/core/VTuneProfiler.h b/tools/profiler/core/VTuneProfiler.h
new file mode 100644
index 0000000000..e3abe6b90d
--- /dev/null
+++ b/tools/profiler/core/VTuneProfiler.h
@@ -0,0 +1,78 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef VTuneProfiler_h
+#define VTuneProfiler_h
+
+// The intent here is to add 0 overhead for regular users. In order to build
+// the VTune profiler code at all --enable-vtune-instrumentation needs to be
+// set as a build option. Even then, when none of the environment variables
+// is specified that allow us to find the ittnotify DLL, these functions
+// should be minimal overhead. When starting Firefox under VTune, these
+// env vars will be automatically defined, otherwise INTEL_LIBITTNOTIFY32/64
+// should be set to point at the ittnotify DLL.
+#ifndef MOZ_VTUNE_INSTRUMENTATION
+
+# define VTUNE_INIT()
+# define VTUNE_SHUTDOWN()
+
+# define VTUNE_TRACING(name, kind)
+# define VTUNE_REGISTER_THREAD(name)
+
+#else
+
+# include "GeckoProfiler.h"
+
+// This is the regular Intel header, these functions are actually defined for
+// us inside js/src/vtune by an intel C file which actually dynamically resolves
+// them to the correct DLL. Through libxul these will 'magically' resolve.
+# include "vtune/ittnotify.h"
+
+# include <stddef.h>
+# include <unordered_map>
+# include <string>
+
+class VTuneProfiler {
+ public:
+ static void Initialize();
+ static void Shutdown();
+
+ enum TracingKind {
+ TRACING_EVENT,
+ TRACING_INTERVAL_START,
+ TRACING_INTERVAL_END,
+ };
+
+ static void Trace(const char* aName, TracingKind aKind) {
+ if (mInstance) {
+ mInstance->TraceInternal(aName, aKind);
+ }
+ }
+ static void RegisterThread(const char* aName) {
+ if (mInstance) {
+ mInstance->RegisterThreadInternal(aName);
+ }
+ }
+
+ private:
+ void TraceInternal(const char* aName, TracingKind aKind);
+ void RegisterThreadInternal(const char* aName);
+
+ // This is null when the ittnotify DLL could not be found.
+ static VTuneProfiler* mInstance;
+
+ std::unordered_map<std::string, __itt_event> mStrings;
+};
+
+# define VTUNE_INIT() VTuneProfiler::Initialize()
+# define VTUNE_SHUTDOWN() VTuneProfiler::Shutdown()
+
+# define VTUNE_TRACING(name, kind) VTuneProfiler::Trace(name, kind)
+# define VTUNE_REGISTER_THREAD(name) VTuneProfiler::RegisterThread(name)
+
+#endif
+
+#endif /* VTuneProfiler_h */
diff --git a/tools/profiler/core/memory_hooks.cpp b/tools/profiler/core/memory_hooks.cpp
new file mode 100644
index 0000000000..59e87d607c
--- /dev/null
+++ b/tools/profiler/core/memory_hooks.cpp
@@ -0,0 +1,632 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "memory_hooks.h"
+
+#include "nscore.h"
+
+#include "mozilla/Assertions.h"
+#include "mozilla/Atomics.h"
+#include "mozilla/FastBernoulliTrial.h"
+#include "mozilla/IntegerPrintfMacros.h"
+#include "mozilla/JSONWriter.h"
+#include "mozilla/MemoryReporting.h"
+#include "mozilla/PlatformMutex.h"
+#include "mozilla/ProfilerCounts.h"
+#include "mozilla/ThreadLocal.h"
+
+#include "GeckoProfiler.h"
+#include "prenv.h"
+#include "replace_malloc.h"
+
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef XP_WIN
+# include <windows.h>
+# include <process.h>
+#else
+# include <pthread.h>
+# include <sys/types.h>
+# include <unistd.h>
+#endif
+
+#ifdef ANDROID
+# include <android/log.h>
+#endif
+
+// The counters start out as a nullptr, and then get initialized only once. They
+// are never destroyed, as it would cause race conditions for the memory hooks
+// that use the counters. This helps guard against potentially expensive
+// operations like using a mutex.
+//
+// In addition, this is a raw pointer and not a UniquePtr, as the counter
+// machinery will try and de-register itself from the profiler. This could
+// happen after the profiler and its PSMutex was already destroyed, resulting in
+// a crash.
+static ProfilerCounterTotal* sCounter;
+
+// The gBernoulli value starts out as a nullptr, and only gets initialized once.
+// It then lives for the entire lifetime of the process. It cannot be deleted
+// without additional multi-threaded protections, since if we deleted it during
+// profiler_stop then there could be a race between threads already in a
+// memory hook that might try to access the value after or during deletion.
+static mozilla::FastBernoulliTrial* gBernoulli;
+
+namespace mozilla::profiler {
+
+//---------------------------------------------------------------------------
+// Utilities
+//---------------------------------------------------------------------------
+
+// Returns true or or false depending on whether the marker was actually added
+// or not.
+static bool profiler_add_native_allocation_marker(int64_t aSize,
+ uintptr_t aMemoryAddress) {
+ if (!profiler_thread_is_being_profiled_for_markers(
+ profiler_main_thread_id())) {
+ return false;
+ }
+
+ // Because native allocations may be intercepted anywhere, blocking while
+ // locking the profiler mutex here could end up causing a deadlock if another
+ // mutex is taken, which the profiler may indirectly need elsewhere.
+ // See bug 1642726 for such a scenario.
+ // So instead we bail out if the mutex is already locked. Native allocations
+ // are statistically sampled anyway, so missing a few because of this is
+ // acceptable.
+ if (profiler_is_locked_on_current_thread()) {
+ return false;
+ }
+
+ struct NativeAllocationMarker {
+ static constexpr mozilla::Span<const char> MarkerTypeName() {
+ return mozilla::MakeStringSpan("Native allocation");
+ }
+ static void StreamJSONMarkerData(
+ mozilla::baseprofiler::SpliceableJSONWriter& aWriter, int64_t aSize,
+ uintptr_t aMemoryAddress, ProfilerThreadId aThreadId) {
+ aWriter.IntProperty("size", aSize);
+ aWriter.IntProperty("memoryAddress",
+ static_cast<int64_t>(aMemoryAddress));
+ // Tech note: If `ToNumber()` returns a uint64_t, the conversion to
+ // int64_t is "implementation-defined" before C++20. This is acceptable
+ // here, because this is a one-way conversion to a unique identifier
+ // that's used to visually separate data by thread on the front-end.
+ aWriter.IntProperty("threadId",
+ static_cast<int64_t>(aThreadId.ToNumber()));
+ }
+ static mozilla::MarkerSchema MarkerTypeDisplay() {
+ return mozilla::MarkerSchema::SpecialFrontendLocation{};
+ }
+ };
+
+ profiler_add_marker("Native allocation", geckoprofiler::category::OTHER,
+ {MarkerThreadId::MainThread(), MarkerStack::Capture()},
+ NativeAllocationMarker{}, aSize, aMemoryAddress,
+ profiler_current_thread_id());
+ return true;
+}
+
+static malloc_table_t gMallocTable;
+
+// This is only needed because of the |const void*| vs |void*| arg mismatch.
+static size_t MallocSizeOf(const void* aPtr) {
+ return gMallocTable.malloc_usable_size(const_cast<void*>(aPtr));
+}
+
+// The values for the Bernoulli trial are taken from DMD. According to DMD:
+//
+// In testing, a probability of 0.003 resulted in ~25% of heap blocks getting
+// a stack trace and ~80% of heap bytes getting a stack trace. (This is
+// possible because big heap blocks are more likely to get a stack trace.)
+//
+// The random number seeds are arbitrary and were obtained from random.org.
+//
+// However this value resulted in a lot of slowdown since the profiler stacks
+// are pretty heavy to collect. The value was lowered to 10% of the original to
+// 0.0003.
+static void EnsureBernoulliIsInstalled() {
+ if (!gBernoulli) {
+ // This is only installed once. See the gBernoulli definition for more
+ // information.
+ gBernoulli =
+ new FastBernoulliTrial(0.0003, 0x8e26eeee166bc8ca, 0x56820f304a9c9ae0);
+ }
+}
+
+// This class provides infallible allocations (they abort on OOM) like
+// mozalloc's InfallibleAllocPolicy, except that memory hooks are bypassed. This
+// policy is used by the HashSet.
+class InfallibleAllocWithoutHooksPolicy {
+ static void ExitOnFailure(const void* aP) {
+ if (!aP) {
+ MOZ_CRASH("Profiler memory hooks out of memory; aborting");
+ }
+ }
+
+ public:
+ template <typename T>
+ static T* maybe_pod_malloc(size_t aNumElems) {
+ if (aNumElems & mozilla::tl::MulOverflowMask<sizeof(T)>::value) {
+ return nullptr;
+ }
+ return (T*)gMallocTable.malloc(aNumElems * sizeof(T));
+ }
+
+ template <typename T>
+ static T* maybe_pod_calloc(size_t aNumElems) {
+ return (T*)gMallocTable.calloc(aNumElems, sizeof(T));
+ }
+
+ template <typename T>
+ static T* maybe_pod_realloc(T* aPtr, size_t aOldSize, size_t aNewSize) {
+ if (aNewSize & mozilla::tl::MulOverflowMask<sizeof(T)>::value) {
+ return nullptr;
+ }
+ return (T*)gMallocTable.realloc(aPtr, aNewSize * sizeof(T));
+ }
+
+ template <typename T>
+ static T* pod_malloc(size_t aNumElems) {
+ T* p = maybe_pod_malloc<T>(aNumElems);
+ ExitOnFailure(p);
+ return p;
+ }
+
+ template <typename T>
+ static T* pod_calloc(size_t aNumElems) {
+ T* p = maybe_pod_calloc<T>(aNumElems);
+ ExitOnFailure(p);
+ return p;
+ }
+
+ template <typename T>
+ static T* pod_realloc(T* aPtr, size_t aOldSize, size_t aNewSize) {
+ T* p = maybe_pod_realloc(aPtr, aOldSize, aNewSize);
+ ExitOnFailure(p);
+ return p;
+ }
+
+ template <typename T>
+ static void free_(T* aPtr, size_t aSize = 0) {
+ gMallocTable.free(aPtr);
+ }
+
+ static void reportAllocOverflow() { ExitOnFailure(nullptr); }
+ bool checkSimulatedOOM() const { return true; }
+};
+
+// We can't use mozilla::Mutex because it causes re-entry into the memory hooks.
+// Define a custom implementation here.
+class Mutex : private ::mozilla::detail::MutexImpl {
+ public:
+ Mutex() : ::mozilla::detail::MutexImpl() {}
+
+ void Lock() { ::mozilla::detail::MutexImpl::lock(); }
+ void Unlock() { ::mozilla::detail::MutexImpl::unlock(); }
+};
+
+class MutexAutoLock {
+ MutexAutoLock(const MutexAutoLock&) = delete;
+ void operator=(const MutexAutoLock&) = delete;
+
+ Mutex& mMutex;
+
+ public:
+ explicit MutexAutoLock(Mutex& aMutex) : mMutex(aMutex) { mMutex.Lock(); }
+ ~MutexAutoLock() { mMutex.Unlock(); }
+};
+
+//---------------------------------------------------------------------------
+// Tracked allocations
+//---------------------------------------------------------------------------
+
+// The allocation tracker is shared between multiple threads, and is the
+// coordinator for knowing when allocations have been tracked. The mutable
+// internal state is protected by a mutex, and managed by the methods.
+//
+// The tracker knows about all the allocations that we have added to the
+// profiler. This way, whenever any given piece of memory is freed, we can see
+// if it was previously tracked, and we can track its deallocation.
+
+class AllocationTracker {
+ // This type tracks all of the allocations that we have captured. This way, we
+ // can see if a deallocation is inside of this set. We want to provide a
+ // balanced view into the allocations and deallocations.
+ typedef mozilla::HashSet<const void*, mozilla::DefaultHasher<const void*>,
+ InfallibleAllocWithoutHooksPolicy>
+ AllocationSet;
+
+ public:
+ AllocationTracker() : mAllocations(), mMutex() {}
+
+ void AddMemoryAddress(const void* memoryAddress) {
+ MutexAutoLock lock(mMutex);
+ if (!mAllocations.put(memoryAddress)) {
+ MOZ_CRASH("Out of memory while tracking native allocations.");
+ };
+ }
+
+ void Reset() {
+ MutexAutoLock lock(mMutex);
+ mAllocations.clearAndCompact();
+ }
+
+ // Returns true when the memory address is found and removed, otherwise that
+ // memory address is not being tracked and it returns false.
+ bool RemoveMemoryAddressIfFound(const void* memoryAddress) {
+ MutexAutoLock lock(mMutex);
+
+ auto ptr = mAllocations.lookup(memoryAddress);
+ if (ptr) {
+ // The memory was present. It no longer needs to be tracked.
+ mAllocations.remove(ptr);
+ return true;
+ }
+
+ return false;
+ }
+
+ private:
+ AllocationSet mAllocations;
+ Mutex mMutex MOZ_UNANNOTATED;
+};
+
+static AllocationTracker* gAllocationTracker;
+
+static void EnsureAllocationTrackerIsInstalled() {
+ if (!gAllocationTracker) {
+ // This is only installed once.
+ gAllocationTracker = new AllocationTracker();
+ }
+}
+
+//---------------------------------------------------------------------------
+// Per-thread blocking of intercepts
+//---------------------------------------------------------------------------
+
+// On MacOS, and Linux the first __thread/thread_local access calls malloc,
+// which leads to an infinite loop. So we use pthread-based TLS instead, which
+// somehow doesn't have this problem.
+#if !defined(XP_DARWIN) && !defined(XP_LINUX)
+# define PROFILER_THREAD_LOCAL(T) MOZ_THREAD_LOCAL(T)
+#else
+# define PROFILER_THREAD_LOCAL(T) \
+ ::mozilla::detail::ThreadLocal<T, ::mozilla::detail::ThreadLocalKeyStorage>
+#endif
+
+// This class is used to determine if allocations on this thread should be
+// intercepted or not.
+// Creating a ThreadIntercept object on the stack will implicitly block nested
+// ones. There are other reasons to block: The feature is off, or we're inside a
+// profiler function that is locking a mutex.
+class MOZ_RAII ThreadIntercept {
+ // When set to true, malloc does not intercept additional allocations. This is
+ // needed because collecting stacks creates new allocations. When blocked,
+ // these allocations are then ignored by the memory hook.
+ static PROFILER_THREAD_LOCAL(bool) tlsIsBlocked;
+
+ // This is a quick flag to check and see if the allocations feature is enabled
+ // or disabled.
+ static mozilla::Atomic<bool, mozilla::Relaxed> sAllocationsFeatureEnabled;
+
+ // True if this ThreadIntercept has set tlsIsBlocked.
+ bool mIsBlockingTLS;
+
+ // True if interception is blocked for any reason.
+ bool mIsBlocked;
+
+ public:
+ static void Init() {
+ tlsIsBlocked.infallibleInit();
+ // infallibleInit should zero-initialize, which corresponds to `false`.
+ MOZ_ASSERT(!tlsIsBlocked.get());
+ }
+
+ ThreadIntercept() {
+ // If the allocation interception feature is enabled, and the TLS is not
+ // blocked yet, we will block the TLS now, and unblock on destruction.
+ mIsBlockingTLS = sAllocationsFeatureEnabled && !tlsIsBlocked.get();
+ if (mIsBlockingTLS) {
+ MOZ_ASSERT(!tlsIsBlocked.get());
+ tlsIsBlocked.set(true);
+ // Since this is the top-level ThreadIntercept, interceptions are not
+ // blocked unless the profiler itself holds a locked mutex, in which case
+ // we don't want to intercept allocations that originate from such a
+ // profiler call.
+ mIsBlocked = profiler_is_locked_on_current_thread();
+ } else {
+ // The feature is off, or the TLS was already blocked, then we block this
+ // interception.
+ mIsBlocked = true;
+ }
+ }
+
+ ~ThreadIntercept() {
+ if (mIsBlockingTLS) {
+ MOZ_ASSERT(tlsIsBlocked.get());
+ tlsIsBlocked.set(false);
+ }
+ }
+
+ // Is this ThreadIntercept effectively blocked? (Feature is off, or this
+ // ThreadIntercept is nested, or we're inside a locked-Profiler function.)
+ bool IsBlocked() const { return mIsBlocked; }
+
+ static void EnableAllocationFeature() { sAllocationsFeatureEnabled = true; }
+
+ static void DisableAllocationFeature() { sAllocationsFeatureEnabled = false; }
+};
+
+PROFILER_THREAD_LOCAL(bool) ThreadIntercept::tlsIsBlocked;
+
+mozilla::Atomic<bool, mozilla::Relaxed>
+ ThreadIntercept::sAllocationsFeatureEnabled(false);
+
+//---------------------------------------------------------------------------
+// malloc/free callbacks
+//---------------------------------------------------------------------------
+
+static void AllocCallback(void* aPtr, size_t aReqSize) {
+ if (!aPtr) {
+ return;
+ }
+
+ // The first part of this function does not allocate.
+ size_t actualSize = gMallocTable.malloc_usable_size(aPtr);
+ if (actualSize > 0) {
+ sCounter->Add(actualSize);
+ }
+
+ ThreadIntercept threadIntercept;
+ if (threadIntercept.IsBlocked()) {
+ // Either the native allocations feature is not turned on, or we may be
+ // recursing into a memory hook, return. We'll still collect counter
+ // information about this allocation, but no stack.
+ return;
+ }
+
+ AUTO_PROFILER_LABEL("AllocCallback", PROFILER);
+
+ // Perform a bernoulli trial, which will return true or false based on its
+ // configured probability. It takes into account the byte size so that
+ // larger allocations are weighted heavier than smaller allocations.
+ MOZ_ASSERT(gBernoulli,
+ "gBernoulli must be properly installed for the memory hooks.");
+ if (
+ // First perform the Bernoulli trial.
+ gBernoulli->trial(actualSize) &&
+ // Second, attempt to add a marker if the Bernoulli trial passed.
+ profiler_add_native_allocation_marker(
+ static_cast<int64_t>(actualSize),
+ reinterpret_cast<uintptr_t>(aPtr))) {
+ MOZ_ASSERT(gAllocationTracker,
+ "gAllocationTracker must be properly installed for the memory "
+ "hooks.");
+ // Only track the memory if the allocation marker was actually added to the
+ // profiler.
+ gAllocationTracker->AddMemoryAddress(aPtr);
+ }
+
+ // We're ignoring aReqSize here
+}
+
+static void FreeCallback(void* aPtr) {
+ if (!aPtr) {
+ return;
+ }
+
+ // The first part of this function does not allocate.
+ size_t unsignedSize = MallocSizeOf(aPtr);
+ int64_t signedSize = -(static_cast<int64_t>(unsignedSize));
+ sCounter->Add(signedSize);
+
+ ThreadIntercept threadIntercept;
+ if (threadIntercept.IsBlocked()) {
+ // Either the native allocations feature is not turned on, or we may be
+ // recursing into a memory hook, return. We'll still collect counter
+ // information about this allocation, but no stack.
+ return;
+ }
+
+ AUTO_PROFILER_LABEL("FreeCallback", PROFILER);
+
+ // Perform a bernoulli trial, which will return true or false based on its
+ // configured probability. It takes into account the byte size so that
+ // larger allocations are weighted heavier than smaller allocations.
+ MOZ_ASSERT(
+ gAllocationTracker,
+ "gAllocationTracker must be properly installed for the memory hooks.");
+ if (gAllocationTracker->RemoveMemoryAddressIfFound(aPtr)) {
+ // This size here is negative, indicating a deallocation.
+ profiler_add_native_allocation_marker(signedSize,
+ reinterpret_cast<uintptr_t>(aPtr));
+ }
+}
+
+} // namespace mozilla::profiler
+
+//---------------------------------------------------------------------------
+// malloc/free interception
+//---------------------------------------------------------------------------
+
+using namespace mozilla::profiler;
+
+static void* replace_malloc(size_t aSize) {
+ // This must be a call to malloc from outside. Intercept it.
+ void* ptr = gMallocTable.malloc(aSize);
+ AllocCallback(ptr, aSize);
+ return ptr;
+}
+
+static void* replace_calloc(size_t aCount, size_t aSize) {
+ void* ptr = gMallocTable.calloc(aCount, aSize);
+ AllocCallback(ptr, aCount * aSize);
+ return ptr;
+}
+
+static void* replace_realloc(void* aOldPtr, size_t aSize) {
+ // If |aOldPtr| is nullptr, the call is equivalent to |malloc(aSize)|.
+ if (!aOldPtr) {
+ return replace_malloc(aSize);
+ }
+
+ FreeCallback(aOldPtr);
+ void* ptr = gMallocTable.realloc(aOldPtr, aSize);
+ if (ptr) {
+ AllocCallback(ptr, aSize);
+ } else {
+ // If realloc fails, we undo the prior operations by re-inserting the old
+ // pointer into the live block table. We don't have to do anything with the
+ // dead block list because the dead block hasn't yet been inserted. The
+ // block will end up looking like it was allocated for the first time here,
+ // which is untrue, and the slop bytes will be zero, which may be untrue.
+ // But this case is rare and doing better isn't worth the effort.
+ AllocCallback(aOldPtr, gMallocTable.malloc_usable_size(aOldPtr));
+ }
+ return ptr;
+}
+
+static void* replace_memalign(size_t aAlignment, size_t aSize) {
+ void* ptr = gMallocTable.memalign(aAlignment, aSize);
+ AllocCallback(ptr, aSize);
+ return ptr;
+}
+
+static void replace_free(void* aPtr) {
+ FreeCallback(aPtr);
+ gMallocTable.free(aPtr);
+}
+
+static void* replace_moz_arena_malloc(arena_id_t aArena, size_t aSize) {
+ void* ptr = gMallocTable.moz_arena_malloc(aArena, aSize);
+ AllocCallback(ptr, aSize);
+ return ptr;
+}
+
+static void* replace_moz_arena_calloc(arena_id_t aArena, size_t aCount,
+ size_t aSize) {
+ void* ptr = gMallocTable.moz_arena_calloc(aArena, aCount, aSize);
+ AllocCallback(ptr, aCount * aSize);
+ return ptr;
+}
+
+static void* replace_moz_arena_realloc(arena_id_t aArena, void* aPtr,
+ size_t aSize) {
+ void* ptr = gMallocTable.moz_arena_realloc(aArena, aPtr, aSize);
+ AllocCallback(ptr, aSize);
+ return ptr;
+}
+
+static void replace_moz_arena_free(arena_id_t aArena, void* aPtr) {
+ FreeCallback(aPtr);
+ gMallocTable.moz_arena_free(aArena, aPtr);
+}
+
+static void* replace_moz_arena_memalign(arena_id_t aArena, size_t aAlignment,
+ size_t aSize) {
+ void* ptr = gMallocTable.moz_arena_memalign(aArena, aAlignment, aSize);
+ AllocCallback(ptr, aSize);
+ return ptr;
+}
+
+// we have to replace these or jemalloc will assume we don't implement any
+// of the arena replacements!
+static arena_id_t replace_moz_create_arena_with_params(
+ arena_params_t* aParams) {
+ return gMallocTable.moz_create_arena_with_params(aParams);
+}
+
+static void replace_moz_dispose_arena(arena_id_t aArenaId) {
+ return gMallocTable.moz_dispose_arena(aArenaId);
+}
+
+static void replace_moz_set_max_dirty_page_modifier(int32_t aModifier) {
+ return gMallocTable.moz_set_max_dirty_page_modifier(aModifier);
+}
+
+// Must come after all the replace_* funcs
+void replace_init(malloc_table_t* aMallocTable, ReplaceMallocBridge** aBridge) {
+ gMallocTable = *aMallocTable;
+#define MALLOC_FUNCS (MALLOC_FUNCS_MALLOC_BASE | MALLOC_FUNCS_ARENA)
+#define MALLOC_DECL(name, ...) aMallocTable->name = replace_##name;
+#include "malloc_decls.h"
+}
+
+void profiler_replace_remove() {}
+
+namespace mozilla::profiler {
+//---------------------------------------------------------------------------
+// Initialization
+//---------------------------------------------------------------------------
+
+BaseProfilerCount* install_memory_hooks() {
+ if (!sCounter) {
+ sCounter = new ProfilerCounterTotal("malloc", "Memory",
+ "Amount of allocated memory");
+ // Also initialize the ThreadIntercept, even if native allocation tracking
+ // won't be turned on. This way the TLS will be initialized.
+ ThreadIntercept::Init();
+ } else {
+ sCounter->Clear();
+ }
+ jemalloc_replace_dynamic(replace_init);
+ return sCounter;
+}
+
+// Remove the hooks, but leave the sCounter machinery. Deleting the counter
+// would race with any existing memory hooks that are currently running. Rather
+// than adding overhead here of mutexes it's cheaper for the performance to just
+// leak these values.
+void remove_memory_hooks() { jemalloc_replace_dynamic(nullptr); }
+
+void enable_native_allocations() {
+ // The bloat log tracks allocations and deallocations. This can conflict
+ // with the memory hook machinery, as the bloat log creates its own
+ // allocations. This means we can re-enter inside the bloat log machinery. At
+ // this time, the bloat log does not know about cannot handle the native
+ // allocation feature.
+ //
+ // At the time of this writing, we hit this assertion:
+ // IsIdle(oldState) || IsRead(oldState) in Checker::StartReadOp()
+ //
+ // #01: GetBloatEntry(char const*, unsigned int)
+ // #02: NS_LogCtor
+ // #03: profiler_get_backtrace()
+ // #04: profiler_add_native_allocation_marker(long long)
+ // #05: mozilla::profiler::AllocCallback(void*, unsigned long)
+ // #06: replace_calloc(unsigned long, unsigned long)
+ // #07: PLDHashTable::ChangeTable(int)
+ // #08: PLDHashTable::Add(void const*, std::nothrow_t const&)
+ // #09: nsBaseHashtable<nsDepCharHashKey, nsAutoPtr<BloatEntry>, ...
+ // #10: GetBloatEntry(char const*, unsigned int)
+ // #11: NS_LogCtor
+ // #12: profiler_get_backtrace()
+ // ...
+ MOZ_ASSERT(!PR_GetEnv("XPCOM_MEM_BLOAT_LOG"),
+ "The bloat log feature is not compatible with the native "
+ "allocations instrumentation.");
+
+ EnsureBernoulliIsInstalled();
+ EnsureAllocationTrackerIsInstalled();
+ ThreadIntercept::EnableAllocationFeature();
+}
+
+// This is safe to call even if native allocations hasn't been enabled.
+void disable_native_allocations() {
+ ThreadIntercept::DisableAllocationFeature();
+ if (gAllocationTracker) {
+ gAllocationTracker->Reset();
+ }
+}
+
+} // namespace mozilla::profiler
diff --git a/tools/profiler/core/memory_hooks.h b/tools/profiler/core/memory_hooks.h
new file mode 100644
index 0000000000..a6ace771dd
--- /dev/null
+++ b/tools/profiler/core/memory_hooks.h
@@ -0,0 +1,25 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef memory_hooks_h
+#define memory_hooks_h
+
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+class BaseProfilerCount;
+
+namespace mozilla {
+namespace profiler {
+
+BaseProfilerCount* install_memory_hooks();
+void remove_memory_hooks();
+void enable_native_allocations();
+void disable_native_allocations();
+
+} // namespace profiler
+} // namespace mozilla
+#endif
+
+#endif
diff --git a/tools/profiler/core/platform-linux-android.cpp b/tools/profiler/core/platform-linux-android.cpp
new file mode 100644
index 0000000000..6bcb9cf38b
--- /dev/null
+++ b/tools/profiler/core/platform-linux-android.cpp
@@ -0,0 +1,636 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+// Copyright (c) 2006-2011 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in
+// the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google, Inc. nor the names of its contributors
+// may be used to endorse or promote products derived from this
+// software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+// This file is used for both Linux and Android as well as FreeBSD.
+
+#include <stdio.h>
+#include <math.h>
+
+#include <pthread.h>
+#if defined(GP_OS_freebsd)
+# include <sys/thr.h>
+#endif
+#include <semaphore.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <sched.h>
+#include <ucontext.h>
+// Ubuntu Dapper requires memory pages to be marked as
+// executable. Otherwise, OS raises an exception when executing code
+// in that page.
+#include <sys/types.h> // mmap & munmap
+#include <sys/mman.h> // mmap & munmap
+#include <sys/stat.h> // open
+#include <fcntl.h> // open
+#include <unistd.h> // sysconf
+#include <semaphore.h>
+#ifdef __GLIBC__
+# include <execinfo.h> // backtrace, backtrace_symbols
+#endif // def __GLIBC__
+#include <strings.h> // index
+#include <errno.h>
+#include <stdarg.h>
+
+#include "prenv.h"
+#include "mozilla/PodOperations.h"
+#include "mozilla/DebugOnly.h"
+#if defined(GP_OS_linux) || defined(GP_OS_android)
+# include "common/linux/breakpad_getcontext.h"
+#endif
+
+#include <string.h>
+#include <list>
+
+using namespace mozilla;
+
+static void PopulateRegsFromContext(Registers& aRegs, ucontext_t* aContext) {
+ aRegs.mContext = aContext;
+ mcontext_t& mcontext = aContext->uc_mcontext;
+
+ // Extracting the sample from the context is extremely machine dependent.
+#if defined(GP_PLAT_x86_linux) || defined(GP_PLAT_x86_android)
+ aRegs.mPC = reinterpret_cast<Address>(mcontext.gregs[REG_EIP]);
+ aRegs.mSP = reinterpret_cast<Address>(mcontext.gregs[REG_ESP]);
+ aRegs.mFP = reinterpret_cast<Address>(mcontext.gregs[REG_EBP]);
+ aRegs.mLR = 0;
+#elif defined(GP_PLAT_amd64_linux) || defined(GP_PLAT_amd64_android)
+ aRegs.mPC = reinterpret_cast<Address>(mcontext.gregs[REG_RIP]);
+ aRegs.mSP = reinterpret_cast<Address>(mcontext.gregs[REG_RSP]);
+ aRegs.mFP = reinterpret_cast<Address>(mcontext.gregs[REG_RBP]);
+ aRegs.mLR = 0;
+#elif defined(GP_PLAT_amd64_freebsd)
+ aRegs.mPC = reinterpret_cast<Address>(mcontext.mc_rip);
+ aRegs.mSP = reinterpret_cast<Address>(mcontext.mc_rsp);
+ aRegs.mFP = reinterpret_cast<Address>(mcontext.mc_rbp);
+ aRegs.mLR = 0;
+#elif defined(GP_PLAT_arm_linux) || defined(GP_PLAT_arm_android)
+ aRegs.mPC = reinterpret_cast<Address>(mcontext.arm_pc);
+ aRegs.mSP = reinterpret_cast<Address>(mcontext.arm_sp);
+ aRegs.mFP = reinterpret_cast<Address>(mcontext.arm_fp);
+ aRegs.mLR = reinterpret_cast<Address>(mcontext.arm_lr);
+#elif defined(GP_PLAT_arm64_linux) || defined(GP_PLAT_arm64_android)
+ aRegs.mPC = reinterpret_cast<Address>(mcontext.pc);
+ aRegs.mSP = reinterpret_cast<Address>(mcontext.sp);
+ aRegs.mFP = reinterpret_cast<Address>(mcontext.regs[29]);
+ aRegs.mLR = reinterpret_cast<Address>(mcontext.regs[30]);
+#elif defined(GP_PLAT_arm64_freebsd)
+ aRegs.mPC = reinterpret_cast<Address>(mcontext.mc_gpregs.gp_elr);
+ aRegs.mSP = reinterpret_cast<Address>(mcontext.mc_gpregs.gp_sp);
+ aRegs.mFP = reinterpret_cast<Address>(mcontext.mc_gpregs.gp_x[29]);
+ aRegs.mLR = reinterpret_cast<Address>(mcontext.mc_gpregs.gp_lr);
+#elif defined(GP_PLAT_mips64_linux) || defined(GP_PLAT_mips64_android)
+ aRegs.mPC = reinterpret_cast<Address>(mcontext.pc);
+ aRegs.mSP = reinterpret_cast<Address>(mcontext.gregs[29]);
+ aRegs.mFP = reinterpret_cast<Address>(mcontext.gregs[30]);
+
+#else
+# error "bad platform"
+#endif
+}
+
+#if defined(GP_OS_android)
+# define SYS_tgkill __NR_tgkill
+#endif
+
+#if defined(GP_OS_linux) || defined(GP_OS_android)
+int tgkill(pid_t tgid, pid_t tid, int signalno) {
+ return syscall(SYS_tgkill, tgid, tid, signalno);
+}
+#endif
+
+#if defined(GP_OS_freebsd)
+# define tgkill thr_kill2
+#endif
+
+mozilla::profiler::PlatformData::PlatformData(ProfilerThreadId aThreadId) {
+ MOZ_ASSERT(aThreadId == profiler_current_thread_id());
+ if (clockid_t clockid; pthread_getcpuclockid(pthread_self(), &clockid) == 0) {
+ mClockId = Some(clockid);
+ }
+}
+
+mozilla::profiler::PlatformData::~PlatformData() = default;
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN Sampler target specifics
+
+// The only way to reliably interrupt a Linux thread and inspect its register
+// and stack state is by sending a signal to it, and doing the work inside the
+// signal handler. But we don't want to run much code inside the signal
+// handler, since POSIX severely restricts what we can do in signal handlers.
+// So we use a system of semaphores to suspend the thread and allow the
+// sampler thread to do all the work of unwinding and copying out whatever
+// data it wants.
+//
+// A four-message protocol is used to reliably suspend and later resume the
+// thread to be sampled (the samplee):
+//
+// Sampler (signal sender) thread Samplee (thread to be sampled)
+//
+// Prepare the SigHandlerCoordinator
+// and point sSigHandlerCoordinator at it
+//
+// send SIGPROF to samplee ------- MSG 1 ----> (enter signal handler)
+// wait(mMessage2) Copy register state
+// into sSigHandlerCoordinator
+// <------ MSG 2 ----- post(mMessage2)
+// Samplee is now suspended. wait(mMessage3)
+// Examine its stack/register
+// state at leisure
+//
+// Release samplee:
+// post(mMessage3) ------- MSG 3 ----->
+// wait(mMessage4) Samplee now resumes. Tell
+// the sampler that we are done.
+// <------ MSG 4 ------ post(mMessage4)
+// Now we know the samplee's signal (leave signal handler)
+// handler has finished using
+// sSigHandlerCoordinator. We can
+// safely reuse it for some other thread.
+//
+
+// A type used to coordinate between the sampler (signal sending) thread and
+// the thread currently being sampled (the samplee, which receives the
+// signals).
+//
+// The first message is sent using a SIGPROF signal delivery. The subsequent
+// three are sent using sem_wait/sem_post pairs. They are named accordingly
+// in the following struct.
+struct SigHandlerCoordinator {
+ SigHandlerCoordinator() {
+ PodZero(&mUContext);
+ int r = sem_init(&mMessage2, /* pshared */ 0, 0);
+ r |= sem_init(&mMessage3, /* pshared */ 0, 0);
+ r |= sem_init(&mMessage4, /* pshared */ 0, 0);
+ MOZ_ASSERT(r == 0);
+ (void)r;
+ }
+
+ ~SigHandlerCoordinator() {
+ int r = sem_destroy(&mMessage2);
+ r |= sem_destroy(&mMessage3);
+ r |= sem_destroy(&mMessage4);
+ MOZ_ASSERT(r == 0);
+ (void)r;
+ }
+
+ sem_t mMessage2; // To sampler: "context is in sSigHandlerCoordinator"
+ sem_t mMessage3; // To samplee: "resume"
+ sem_t mMessage4; // To sampler: "finished with sSigHandlerCoordinator"
+ ucontext_t mUContext; // Context at signal
+};
+
+struct SigHandlerCoordinator* Sampler::sSigHandlerCoordinator = nullptr;
+
+static void SigprofHandler(int aSignal, siginfo_t* aInfo, void* aContext) {
+ // Avoid TSan warning about clobbering errno.
+ int savedErrno = errno;
+
+ MOZ_ASSERT(aSignal == SIGPROF);
+ MOZ_ASSERT(Sampler::sSigHandlerCoordinator);
+
+ // By sending us this signal, the sampler thread has sent us message 1 in
+ // the comment above, with the meaning "|sSigHandlerCoordinator| is ready
+ // for use, please copy your register context into it."
+ Sampler::sSigHandlerCoordinator->mUContext =
+ *static_cast<ucontext_t*>(aContext);
+
+ // Send message 2: tell the sampler thread that the context has been copied
+ // into |sSigHandlerCoordinator->mUContext|. sem_post can never fail by
+ // being interrupted by a signal, so there's no loop around this call.
+ int r = sem_post(&Sampler::sSigHandlerCoordinator->mMessage2);
+ MOZ_ASSERT(r == 0);
+
+ // At this point, the sampler thread assumes we are suspended, so we must
+ // not touch any global state here.
+
+ // Wait for message 3: the sampler thread tells us to resume.
+ while (true) {
+ r = sem_wait(&Sampler::sSigHandlerCoordinator->mMessage3);
+ if (r == -1 && errno == EINTR) {
+ // Interrupted by a signal. Try again.
+ continue;
+ }
+ // We don't expect any other kind of failure
+ MOZ_ASSERT(r == 0);
+ break;
+ }
+
+ // Send message 4: tell the sampler thread that we are finished accessing
+ // |sSigHandlerCoordinator|. After this point it is not safe to touch
+ // |sSigHandlerCoordinator|.
+ r = sem_post(&Sampler::sSigHandlerCoordinator->mMessage4);
+ MOZ_ASSERT(r == 0);
+
+ errno = savedErrno;
+}
+
+Sampler::Sampler(PSLockRef aLock)
+ : mMyPid(profiler_current_process_id()),
+ // We don't know what the sampler thread's ID will be until it runs, so
+ // set mSamplerTid to a dummy value and fill it in for real in
+ // SuspendAndSampleAndResumeThread().
+ mSamplerTid{} {
+#if defined(USE_EHABI_STACKWALK)
+ mozilla::EHABIStackWalkInit();
+#endif
+
+ // NOTE: We don't initialize LUL here, instead initializing it in
+ // SamplerThread's constructor. This is because with the
+ // profiler_suspend_and_sample_thread entry point, we want to be able to
+ // sample without waiting for LUL to be initialized.
+
+ // Request profiling signals.
+ struct sigaction sa;
+ sa.sa_sigaction = SigprofHandler;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = SA_RESTART | SA_SIGINFO;
+ if (sigaction(SIGPROF, &sa, &mOldSigprofHandler) != 0) {
+ MOZ_CRASH("Error installing SIGPROF handler in the profiler");
+ }
+}
+
+void Sampler::Disable(PSLockRef aLock) {
+ // Restore old signal handler. This is global state so it's important that
+ // we do it now, while gPSMutex is locked.
+ sigaction(SIGPROF, &mOldSigprofHandler, 0);
+}
+
+static void StreamMetaPlatformSampleUnits(PSLockRef aLock,
+ SpliceableJSONWriter& aWriter) {
+ aWriter.StringProperty("threadCPUDelta", "ns");
+}
+
+/* static */
+uint64_t RunningTimes::ConvertRawToJson(uint64_t aRawValue) {
+ return aRawValue;
+}
+
+namespace mozilla::profiler {
+bool GetCpuTimeSinceThreadStartInNs(
+ uint64_t* aResult, const mozilla::profiler::PlatformData& aPlatformData) {
+ Maybe<clockid_t> maybeCid = aPlatformData.GetClockId();
+ if (MOZ_UNLIKELY(!maybeCid)) {
+ return false;
+ }
+
+ timespec t;
+ if (clock_gettime(*maybeCid, &t) != 0) {
+ return false;
+ }
+
+ *aResult = uint64_t(t.tv_sec) * 1'000'000'000u + uint64_t(t.tv_nsec);
+ return true;
+}
+} // namespace mozilla::profiler
+
+static RunningTimes GetProcessRunningTimesDiff(
+ PSLockRef aLock, RunningTimes& aPreviousRunningTimesToBeUpdated) {
+ AUTO_PROFILER_STATS(GetProcessRunningTimes);
+
+ RunningTimes newRunningTimes;
+ {
+ AUTO_PROFILER_STATS(GetProcessRunningTimes_clock_gettime);
+ if (timespec ts; clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts) == 0) {
+ newRunningTimes.SetThreadCPUDelta(uint64_t(ts.tv_sec) * 1'000'000'000u +
+ uint64_t(ts.tv_nsec));
+ }
+ newRunningTimes.SetPostMeasurementTimeStamp(TimeStamp::Now());
+ };
+
+ const RunningTimes diff = newRunningTimes - aPreviousRunningTimesToBeUpdated;
+ aPreviousRunningTimesToBeUpdated = newRunningTimes;
+ return diff;
+}
+
+static RunningTimes GetThreadRunningTimesDiff(
+ PSLockRef aLock,
+ ThreadRegistration::UnlockedRWForLockedProfiler& aThreadData) {
+ AUTO_PROFILER_STATS(GetRunningTimes_clock_gettime_thread);
+
+ const mozilla::profiler::PlatformData& platformData =
+ aThreadData.PlatformDataCRef();
+ Maybe<clockid_t> maybeCid = platformData.GetClockId();
+
+ if (MOZ_UNLIKELY(!maybeCid)) {
+ // No clock id -> Nothing to measure apart from the timestamp.
+ RunningTimes emptyRunningTimes;
+ emptyRunningTimes.SetPostMeasurementTimeStamp(TimeStamp::Now());
+ return emptyRunningTimes;
+ }
+
+ const RunningTimes newRunningTimes = GetRunningTimesWithTightTimestamp(
+ [cid = *maybeCid](RunningTimes& aRunningTimes) {
+ AUTO_PROFILER_STATS(GetRunningTimes_clock_gettime);
+ if (timespec ts; clock_gettime(cid, &ts) == 0) {
+ aRunningTimes.ResetThreadCPUDelta(
+ uint64_t(ts.tv_sec) * 1'000'000'000u + uint64_t(ts.tv_nsec));
+ } else {
+ aRunningTimes.ClearThreadCPUDelta();
+ }
+ });
+
+ ProfiledThreadData* profiledThreadData =
+ aThreadData.GetProfiledThreadData(aLock);
+ MOZ_ASSERT(profiledThreadData);
+ RunningTimes& previousRunningTimes =
+ profiledThreadData->PreviousThreadRunningTimesRef();
+ const RunningTimes diff = newRunningTimes - previousRunningTimes;
+ previousRunningTimes = newRunningTimes;
+ return diff;
+}
+
+static void DiscardSuspendedThreadRunningTimes(
+ PSLockRef aLock,
+ ThreadRegistration::UnlockedRWForLockedProfiler& aThreadData) {
+ AUTO_PROFILER_STATS(DiscardSuspendedThreadRunningTimes);
+
+ // On Linux, suspending a thread uses a signal that makes that thread work
+ // to handle it. So we want to discard any added running time since the call
+ // to GetThreadRunningTimesDiff, which is done by overwriting the thread's
+ // PreviousThreadRunningTimesRef() with the current running time now.
+
+ const mozilla::profiler::PlatformData& platformData =
+ aThreadData.PlatformDataCRef();
+ Maybe<clockid_t> maybeCid = platformData.GetClockId();
+
+ if (MOZ_UNLIKELY(!maybeCid)) {
+ // No clock id -> Nothing to measure.
+ return;
+ }
+
+ ProfiledThreadData* profiledThreadData =
+ aThreadData.GetProfiledThreadData(aLock);
+ MOZ_ASSERT(profiledThreadData);
+ RunningTimes& previousRunningTimes =
+ profiledThreadData->PreviousThreadRunningTimesRef();
+
+ if (timespec ts; clock_gettime(*maybeCid, &ts) == 0) {
+ previousRunningTimes.ResetThreadCPUDelta(
+ uint64_t(ts.tv_sec) * 1'000'000'000u + uint64_t(ts.tv_nsec));
+ } else {
+ previousRunningTimes.ClearThreadCPUDelta();
+ }
+}
+
+template <typename Func>
+void Sampler::SuspendAndSampleAndResumeThread(
+ PSLockRef aLock,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const TimeStamp& aNow, const Func& aProcessRegs) {
+ // Only one sampler thread can be sampling at once. So we expect to have
+ // complete control over |sSigHandlerCoordinator|.
+ MOZ_ASSERT(!sSigHandlerCoordinator);
+
+ if (!mSamplerTid.IsSpecified()) {
+ mSamplerTid = profiler_current_thread_id();
+ }
+ ProfilerThreadId sampleeTid = aThreadData.Info().ThreadId();
+ MOZ_RELEASE_ASSERT(sampleeTid != mSamplerTid);
+
+ //----------------------------------------------------------------//
+ // Suspend the samplee thread and get its context.
+
+ SigHandlerCoordinator coord; // on sampler thread's stack
+ sSigHandlerCoordinator = &coord;
+
+ // Send message 1 to the samplee (the thread to be sampled), by
+ // signalling at it.
+ // This could fail if the thread doesn't exist anymore.
+ int r = tgkill(mMyPid.ToNumber(), sampleeTid.ToNumber(), SIGPROF);
+ if (r == 0) {
+ // Wait for message 2 from the samplee, indicating that the context
+ // is available and that the thread is suspended.
+ while (true) {
+ r = sem_wait(&sSigHandlerCoordinator->mMessage2);
+ if (r == -1 && errno == EINTR) {
+ // Interrupted by a signal. Try again.
+ continue;
+ }
+ // We don't expect any other kind of failure.
+ MOZ_ASSERT(r == 0);
+ break;
+ }
+
+ //----------------------------------------------------------------//
+ // Sample the target thread.
+
+ // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+ //
+ // The profiler's "critical section" begins here. In the critical section,
+ // we must not do any dynamic memory allocation, nor try to acquire any lock
+ // or any other unshareable resource. This is because the thread to be
+ // sampled has been suspended at some entirely arbitrary point, and we have
+ // no idea which unsharable resources (locks, essentially) it holds. So any
+ // attempt to acquire any lock, including the implied locks used by the
+ // malloc implementation, risks deadlock. This includes TimeStamp::Now(),
+ // which gets a lock on Windows.
+
+ // The samplee thread is now frozen and sSigHandlerCoordinator->mUContext is
+ // valid. We can poke around in it and unwind its stack as we like.
+
+ // Extract the current register values.
+ Registers regs;
+ PopulateRegsFromContext(regs, &sSigHandlerCoordinator->mUContext);
+ aProcessRegs(regs, aNow);
+
+ //----------------------------------------------------------------//
+ // Resume the target thread.
+
+ // Send message 3 to the samplee, which tells it to resume.
+ r = sem_post(&sSigHandlerCoordinator->mMessage3);
+ MOZ_ASSERT(r == 0);
+
+ // Wait for message 4 from the samplee, which tells us that it has
+ // finished with |sSigHandlerCoordinator|.
+ while (true) {
+ r = sem_wait(&sSigHandlerCoordinator->mMessage4);
+ if (r == -1 && errno == EINTR) {
+ continue;
+ }
+ MOZ_ASSERT(r == 0);
+ break;
+ }
+
+ // The profiler's critical section ends here. After this point, none of the
+ // critical section limitations documented above apply.
+ //
+ // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+ }
+
+ // This isn't strictly necessary, but doing so does help pick up anomalies
+ // in which the signal handler is running when it shouldn't be.
+ sSigHandlerCoordinator = nullptr;
+}
+
+// END Sampler target specifics
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN SamplerThread target specifics
+
+static void* ThreadEntry(void* aArg) {
+ auto thread = static_cast<SamplerThread*>(aArg);
+ thread->Run();
+ return nullptr;
+}
+
+SamplerThread::SamplerThread(PSLockRef aLock, uint32_t aActivityGeneration,
+ double aIntervalMilliseconds, uint32_t aFeatures)
+ : mSampler(aLock),
+ mActivityGeneration(aActivityGeneration),
+ mIntervalMicroseconds(
+ std::max(1, int(floor(aIntervalMilliseconds * 1000 + 0.5)))) {
+#if defined(USE_LUL_STACKWALK)
+ lul::LUL* lul = CorePS::Lul();
+ if (!lul && ProfilerFeature::HasStackWalk(aFeatures)) {
+ CorePS::SetLul(MakeUnique<lul::LUL>(logging_sink_for_LUL));
+ // Read all the unwind info currently available.
+ lul = CorePS::Lul();
+ read_procmaps(lul);
+
+ // Switch into unwind mode. After this point, we can't add or remove any
+ // unwind info to/from this LUL instance. The only thing we can do with
+ // it is Unwind() calls.
+ lul->EnableUnwinding();
+
+ // Has a test been requested?
+ if (PR_GetEnv("MOZ_PROFILER_LUL_TEST")) {
+ int nTests = 0, nTestsPassed = 0;
+ RunLulUnitTests(&nTests, &nTestsPassed, lul);
+ }
+ }
+#endif
+
+ // Start the sampling thread. It repeatedly sends a SIGPROF signal. Sending
+ // the signal ourselves instead of relying on itimer provides much better
+ // accuracy.
+ //
+ // At least 350 KiB of stack space are needed when built with TSAN. This
+ // includes lul::N_STACK_BYTES plus whatever else is needed for the sampler
+ // thread. Set the stack size to 800 KiB to keep a safe margin above that.
+ pthread_attr_t attr;
+ if (pthread_attr_init(&attr) != 0 ||
+ pthread_attr_setstacksize(&attr, 800 * 1024) != 0 ||
+ pthread_create(&mThread, &attr, ThreadEntry, this) != 0) {
+ MOZ_CRASH("pthread_create failed");
+ }
+ pthread_attr_destroy(&attr);
+}
+
+SamplerThread::~SamplerThread() {
+ pthread_join(mThread, nullptr);
+ // Just in the unlikely case some callbacks were added between the end of the
+ // thread and now.
+ InvokePostSamplingCallbacks(std::move(mPostSamplingCallbackList),
+ SamplingState::JustStopped);
+}
+
+void SamplerThread::SleepMicro(uint32_t aMicroseconds) {
+ if (aMicroseconds >= 1000000) {
+ // Use usleep for larger intervals, because the nanosleep
+ // code below only supports intervals < 1 second.
+ MOZ_ALWAYS_TRUE(!::usleep(aMicroseconds));
+ return;
+ }
+
+ struct timespec ts;
+ ts.tv_sec = 0;
+ ts.tv_nsec = aMicroseconds * 1000UL;
+
+ int rv = ::nanosleep(&ts, &ts);
+
+ while (rv != 0 && errno == EINTR) {
+ // Keep waiting in case of interrupt.
+ // nanosleep puts the remaining time back into ts.
+ rv = ::nanosleep(&ts, &ts);
+ }
+
+ MOZ_ASSERT(!rv, "nanosleep call failed");
+}
+
+void SamplerThread::Stop(PSLockRef aLock) {
+ // Restore old signal handler. This is global state so it's important that
+ // we do it now, while gPSMutex is locked. It's safe to do this now even
+ // though this SamplerThread is still alive, because the next time the main
+ // loop of Run() iterates it won't get past the mActivityGeneration check,
+ // and so won't send any signals.
+ mSampler.Disable(aLock);
+}
+
+// END SamplerThread target specifics
+////////////////////////////////////////////////////////////////////////
+
+#if defined(GP_OS_linux) || defined(GP_OS_freebsd)
+
+// We use pthread_atfork() to temporarily disable signal delivery during any
+// fork() call. Without that, fork() can be repeatedly interrupted by signal
+// delivery, requiring it to be repeatedly restarted, which can lead to *long*
+// delays. See bug 837390.
+//
+// We provide no paf_child() function to run in the child after forking. This
+// is fine because we always immediately exec() after fork(), and exec()
+// clobbers all process state. Also, we don't want the sampler to resume in the
+// child process between fork() and exec(), it would be wasteful.
+//
+// Unfortunately all this is only doable on non-Android because Bionic doesn't
+// have pthread_atfork.
+
+// In the parent, before the fork, increase gSkipSampling to ensure that
+// profiler sampling loops will be skipped. There could be one in progress now,
+// causing a small delay, but further sampling will be skipped, allowing `fork`
+// to complete.
+static void paf_prepare() { ++gSkipSampling; }
+
+// In the parent, after the fork, decrease gSkipSampling to let the sampler
+// resume sampling (unless other places have made it non-zero as well).
+static void paf_parent() { --gSkipSampling; }
+
+static void PlatformInit(PSLockRef aLock) {
+ // Set up the fork handlers.
+ pthread_atfork(paf_prepare, paf_parent, nullptr);
+}
+
+#else
+
+static void PlatformInit(PSLockRef aLock) {}
+
+#endif
+
+#if defined(HAVE_NATIVE_UNWIND)
+# define REGISTERS_SYNC_POPULATE(regs) \
+ if (!getcontext(&regs.mContextSyncStorage)) { \
+ PopulateRegsFromContext(regs, &regs.mContextSyncStorage); \
+ }
+#endif
diff --git a/tools/profiler/core/platform-macos.cpp b/tools/profiler/core/platform-macos.cpp
new file mode 100644
index 0000000000..b69a346d64
--- /dev/null
+++ b/tools/profiler/core/platform-macos.cpp
@@ -0,0 +1,297 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <unistd.h>
+#include <sys/mman.h>
+#include <mach/mach_init.h>
+#include <mach-o/getsect.h>
+
+#include <AvailabilityMacros.h>
+
+#include <pthread.h>
+#include <semaphore.h>
+#include <signal.h>
+#include <libkern/OSAtomic.h>
+#include <libproc.h>
+#include <mach/mach.h>
+#include <mach/semaphore.h>
+#include <mach/task.h>
+#include <mach/thread_act.h>
+#include <mach/vm_statistics.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <math.h>
+
+// this port is based off of v8 svn revision 9837
+
+mozilla::profiler::PlatformData::PlatformData(ProfilerThreadId aThreadId)
+ : mProfiledThread(mach_thread_self()) {}
+
+mozilla::profiler::PlatformData::~PlatformData() {
+ // Deallocate Mach port for thread.
+ mach_port_deallocate(mach_task_self(), mProfiledThread);
+}
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN Sampler target specifics
+
+Sampler::Sampler(PSLockRef aLock) {}
+
+void Sampler::Disable(PSLockRef aLock) {}
+
+static void StreamMetaPlatformSampleUnits(PSLockRef aLock,
+ SpliceableJSONWriter& aWriter) {
+ // Microseconds.
+ aWriter.StringProperty("threadCPUDelta", "\u00B5s");
+}
+
+/* static */
+uint64_t RunningTimes::ConvertRawToJson(uint64_t aRawValue) {
+ return aRawValue;
+}
+
+namespace mozilla::profiler {
+bool GetCpuTimeSinceThreadStartInNs(
+ uint64_t* aResult, const mozilla::profiler::PlatformData& aPlatformData) {
+ thread_extended_info_data_t threadInfoData;
+ mach_msg_type_number_t count = THREAD_EXTENDED_INFO_COUNT;
+ if (thread_info(aPlatformData.ProfiledThread(), THREAD_EXTENDED_INFO,
+ (thread_info_t)&threadInfoData, &count) != KERN_SUCCESS) {
+ return false;
+ }
+
+ *aResult = threadInfoData.pth_user_time + threadInfoData.pth_system_time;
+ return true;
+}
+} // namespace mozilla::profiler
+
+static RunningTimes GetProcessRunningTimesDiff(
+ PSLockRef aLock, RunningTimes& aPreviousRunningTimesToBeUpdated) {
+ AUTO_PROFILER_STATS(GetProcessRunningTimes);
+
+ RunningTimes newRunningTimes;
+ {
+ AUTO_PROFILER_STATS(GetProcessRunningTimes_task_info);
+
+ static const auto pid = getpid();
+ struct proc_taskinfo pti;
+ if ((unsigned long)proc_pidinfo(pid, PROC_PIDTASKINFO, 0, &pti,
+ PROC_PIDTASKINFO_SIZE) >=
+ PROC_PIDTASKINFO_SIZE) {
+ newRunningTimes.SetThreadCPUDelta(pti.pti_total_user +
+ pti.pti_total_system);
+ }
+ newRunningTimes.SetPostMeasurementTimeStamp(TimeStamp::Now());
+ };
+
+ const RunningTimes diff = newRunningTimes - aPreviousRunningTimesToBeUpdated;
+ aPreviousRunningTimesToBeUpdated = newRunningTimes;
+ return diff;
+}
+
+static RunningTimes GetThreadRunningTimesDiff(
+ PSLockRef aLock,
+ ThreadRegistration::UnlockedRWForLockedProfiler& aThreadData) {
+ AUTO_PROFILER_STATS(GetRunningTimes);
+
+ const mozilla::profiler::PlatformData& platformData =
+ aThreadData.PlatformDataCRef();
+
+ const RunningTimes newRunningTimes = GetRunningTimesWithTightTimestamp(
+ [&platformData](RunningTimes& aRunningTimes) {
+ AUTO_PROFILER_STATS(GetRunningTimes_thread_info);
+ thread_basic_info_data_t threadBasicInfo;
+ mach_msg_type_number_t basicCount = THREAD_BASIC_INFO_COUNT;
+ if (thread_info(platformData.ProfiledThread(), THREAD_BASIC_INFO,
+ reinterpret_cast<thread_info_t>(&threadBasicInfo),
+ &basicCount) == KERN_SUCCESS &&
+ basicCount == THREAD_BASIC_INFO_COUNT) {
+ uint64_t userTimeUs =
+ uint64_t(threadBasicInfo.user_time.seconds) *
+ uint64_t(USEC_PER_SEC) +
+ uint64_t(threadBasicInfo.user_time.microseconds);
+ uint64_t systemTimeUs =
+ uint64_t(threadBasicInfo.system_time.seconds) *
+ uint64_t(USEC_PER_SEC) +
+ uint64_t(threadBasicInfo.system_time.microseconds);
+ aRunningTimes.ResetThreadCPUDelta(userTimeUs + systemTimeUs);
+ } else {
+ aRunningTimes.ClearThreadCPUDelta();
+ }
+ });
+
+ ProfiledThreadData* profiledThreadData =
+ aThreadData.GetProfiledThreadData(aLock);
+ MOZ_ASSERT(profiledThreadData);
+ RunningTimes& previousRunningTimes =
+ profiledThreadData->PreviousThreadRunningTimesRef();
+ const RunningTimes diff = newRunningTimes - previousRunningTimes;
+ previousRunningTimes = newRunningTimes;
+ return diff;
+}
+
+static void DiscardSuspendedThreadRunningTimes(
+ PSLockRef aLock,
+ ThreadRegistration::UnlockedRWForLockedProfiler& aThreadData) {
+ // Nothing to do!
+ // On macOS, suspending a thread doesn't make that thread work.
+}
+
+template <typename Func>
+void Sampler::SuspendAndSampleAndResumeThread(
+ PSLockRef aLock,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const TimeStamp& aNow, const Func& aProcessRegs) {
+ thread_act_t samplee_thread = aThreadData.PlatformDataCRef().ProfiledThread();
+
+ //----------------------------------------------------------------//
+ // Suspend the samplee thread and get its context.
+
+ // We're using thread_suspend on OS X because pthread_kill (which is what we
+ // at one time used on Linux) has less consistent performance and causes
+ // strange crashes, see bug 1166778 and bug 1166808. thread_suspend
+ // is also just a lot simpler to use.
+
+ if (KERN_SUCCESS != thread_suspend(samplee_thread)) {
+ return;
+ }
+
+ //----------------------------------------------------------------//
+ // Sample the target thread.
+
+ // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+ //
+ // The profiler's "critical section" begins here. We must be very careful
+ // what we do here, or risk deadlock. See the corresponding comment in
+ // platform-linux-android.cpp for details.
+
+#if defined(__x86_64__)
+ thread_state_flavor_t flavor = x86_THREAD_STATE64;
+ x86_thread_state64_t state;
+ mach_msg_type_number_t count = x86_THREAD_STATE64_COUNT;
+# if __DARWIN_UNIX03
+# define REGISTER_FIELD(name) __r##name
+# else
+# define REGISTER_FIELD(name) r##name
+# endif // __DARWIN_UNIX03
+#elif defined(__aarch64__)
+ thread_state_flavor_t flavor = ARM_THREAD_STATE64;
+ arm_thread_state64_t state;
+ mach_msg_type_number_t count = ARM_THREAD_STATE64_COUNT;
+# if __DARWIN_UNIX03
+# define REGISTER_FIELD(name) __##name
+# else
+# define REGISTER_FIELD(name) name
+# endif // __DARWIN_UNIX03
+#else
+# error "unknown architecture"
+#endif
+
+ if (thread_get_state(samplee_thread, flavor,
+ reinterpret_cast<natural_t*>(&state),
+ &count) == KERN_SUCCESS) {
+ Registers regs;
+#if defined(__x86_64__)
+ regs.mPC = reinterpret_cast<Address>(state.REGISTER_FIELD(ip));
+ regs.mSP = reinterpret_cast<Address>(state.REGISTER_FIELD(sp));
+ regs.mFP = reinterpret_cast<Address>(state.REGISTER_FIELD(bp));
+ regs.mLR = 0;
+#elif defined(__aarch64__)
+ regs.mPC = reinterpret_cast<Address>(state.REGISTER_FIELD(pc));
+ regs.mSP = reinterpret_cast<Address>(state.REGISTER_FIELD(sp));
+ regs.mFP = reinterpret_cast<Address>(state.REGISTER_FIELD(fp));
+ regs.mLR = reinterpret_cast<Address>(state.REGISTER_FIELD(lr));
+#else
+# error "unknown architecture"
+#endif
+
+ aProcessRegs(regs, aNow);
+ }
+
+#undef REGISTER_FIELD
+
+ //----------------------------------------------------------------//
+ // Resume the target thread.
+
+ thread_resume(samplee_thread);
+
+ // The profiler's critical section ends here.
+ //
+ // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+}
+
+// END Sampler target specifics
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN SamplerThread target specifics
+
+static void* ThreadEntry(void* aArg) {
+ auto thread = static_cast<SamplerThread*>(aArg);
+ thread->Run();
+ return nullptr;
+}
+
+SamplerThread::SamplerThread(PSLockRef aLock, uint32_t aActivityGeneration,
+ double aIntervalMilliseconds, uint32_t aFeatures)
+ : mSampler(aLock),
+ mActivityGeneration(aActivityGeneration),
+ mIntervalMicroseconds(
+ std::max(1, int(floor(aIntervalMilliseconds * 1000 + 0.5)))),
+ mThread{nullptr} {
+ pthread_attr_t* attr_ptr = nullptr;
+ if (pthread_create(&mThread, attr_ptr, ThreadEntry, this) != 0) {
+ MOZ_CRASH("pthread_create failed");
+ }
+}
+
+SamplerThread::~SamplerThread() {
+ pthread_join(mThread, nullptr);
+ // Just in the unlikely case some callbacks were added between the end of the
+ // thread and now.
+ InvokePostSamplingCallbacks(std::move(mPostSamplingCallbackList),
+ SamplingState::JustStopped);
+}
+
+void SamplerThread::SleepMicro(uint32_t aMicroseconds) {
+ usleep(aMicroseconds);
+ // FIXME: the OSX 10.12 page for usleep says "The usleep() function is
+ // obsolescent. Use nanosleep(2) instead." This implementation could be
+ // merged with the linux-android version. Also, this doesn't handle the
+ // case where the usleep call is interrupted by a signal.
+}
+
+void SamplerThread::Stop(PSLockRef aLock) { mSampler.Disable(aLock); }
+
+// END SamplerThread target specifics
+////////////////////////////////////////////////////////////////////////
+
+static void PlatformInit(PSLockRef aLock) {}
+
+// clang-format off
+#if defined(HAVE_NATIVE_UNWIND)
+// Derive the stack pointer from the frame pointer. The 0x10 offset is
+// 8 bytes for the previous frame pointer and 8 bytes for the return
+// address both stored on the stack after at the beginning of the current
+// frame.
+# define REGISTERS_SYNC_POPULATE(regs) \
+ regs.mSP = reinterpret_cast<Address>(__builtin_frame_address(0)) + 0x10; \
+ _Pragma("GCC diagnostic push") \
+ _Pragma("GCC diagnostic ignored \"-Wframe-address\"") \
+ regs.mFP = reinterpret_cast<Address>(__builtin_frame_address(1)); \
+ _Pragma("GCC diagnostic pop") \
+ regs.mPC = reinterpret_cast<Address>( \
+ __builtin_extract_return_addr(__builtin_return_address(0))); \
+ regs.mLR = 0;
+#endif
+// clang-format on
diff --git a/tools/profiler/core/platform-win32.cpp b/tools/profiler/core/platform-win32.cpp
new file mode 100644
index 0000000000..5e10e04c89
--- /dev/null
+++ b/tools/profiler/core/platform-win32.cpp
@@ -0,0 +1,496 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+// Copyright (c) 2006-2011 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in
+// the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google, Inc. nor the names of its contributors
+// may be used to endorse or promote products derived from this
+// software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+#include <windows.h>
+#include <mmsystem.h>
+#include <process.h>
+
+#include "nsWindowsDllInterceptor.h"
+#include "mozilla/StackWalk_windows.h"
+#include "mozilla/WindowsVersion.h"
+
+#include <type_traits>
+
+static void PopulateRegsFromContext(Registers& aRegs, CONTEXT* aContext) {
+#if defined(GP_ARCH_amd64)
+ aRegs.mPC = reinterpret_cast<Address>(aContext->Rip);
+ aRegs.mSP = reinterpret_cast<Address>(aContext->Rsp);
+ aRegs.mFP = reinterpret_cast<Address>(aContext->Rbp);
+ aRegs.mLR = 0;
+#elif defined(GP_ARCH_x86)
+ aRegs.mPC = reinterpret_cast<Address>(aContext->Eip);
+ aRegs.mSP = reinterpret_cast<Address>(aContext->Esp);
+ aRegs.mFP = reinterpret_cast<Address>(aContext->Ebp);
+ aRegs.mLR = 0;
+#elif defined(GP_ARCH_arm64)
+ aRegs.mPC = reinterpret_cast<Address>(aContext->Pc);
+ aRegs.mSP = reinterpret_cast<Address>(aContext->Sp);
+ aRegs.mFP = reinterpret_cast<Address>(aContext->Fp);
+ aRegs.mLR = reinterpret_cast<Address>(aContext->Lr);
+#else
+# error "bad arch"
+#endif
+}
+
+// Gets a real (i.e. not pseudo) handle for the current thread, with the
+// permissions needed for profiling.
+// @return a real HANDLE for the current thread.
+static HANDLE GetRealCurrentThreadHandleForProfiling() {
+ HANDLE realCurrentThreadHandle;
+ if (!::DuplicateHandle(
+ ::GetCurrentProcess(), ::GetCurrentThread(), ::GetCurrentProcess(),
+ &realCurrentThreadHandle,
+ THREAD_GET_CONTEXT | THREAD_SUSPEND_RESUME | THREAD_QUERY_INFORMATION,
+ FALSE, 0)) {
+ return nullptr;
+ }
+
+ return realCurrentThreadHandle;
+}
+
+static_assert(
+ std::is_same_v<mozilla::profiler::PlatformData::WindowsHandle, HANDLE>);
+
+mozilla::profiler::PlatformData::PlatformData(ProfilerThreadId aThreadId)
+ : mProfiledThread(GetRealCurrentThreadHandleForProfiling()) {
+ MOZ_ASSERT(aThreadId == ProfilerThreadId::FromNumber(::GetCurrentThreadId()));
+}
+
+mozilla::profiler::PlatformData::~PlatformData() {
+ if (mProfiledThread) {
+ CloseHandle(mProfiledThread);
+ mProfiledThread = nullptr;
+ }
+}
+
+static const HANDLE kNoThread = INVALID_HANDLE_VALUE;
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN Sampler target specifics
+
+Sampler::Sampler(PSLockRef aLock) {}
+
+void Sampler::Disable(PSLockRef aLock) {}
+
+static void StreamMetaPlatformSampleUnits(PSLockRef aLock,
+ SpliceableJSONWriter& aWriter) {
+ static const Span<const char> units =
+ (GetCycleTimeFrequencyMHz() != 0) ? MakeStringSpan("ns")
+ : MakeStringSpan("variable CPU cycles");
+ aWriter.StringProperty("threadCPUDelta", units);
+}
+
+/* static */
+uint64_t RunningTimes::ConvertRawToJson(uint64_t aRawValue) {
+ static const uint64_t cycleTimeFrequencyMHz = GetCycleTimeFrequencyMHz();
+ if (cycleTimeFrequencyMHz == 0u) {
+ return aRawValue;
+ }
+
+ constexpr uint64_t GHZ_PER_MHZ = 1'000u;
+ // To get ns, we need to divide cycles by a frequency in GHz, i.e.:
+ // cycles / (f_MHz / GHZ_PER_MHZ). To avoid losing the integer precision of
+ // f_MHz, this is computed as (cycles * GHZ_PER_MHZ) / f_MHz.
+ // Adding GHZ_PER_MHZ/2 to (cycles * GHZ_PER_MHZ) will round to nearest when
+ // the result of the division is truncated.
+ return (aRawValue * GHZ_PER_MHZ + (GHZ_PER_MHZ / 2u)) / cycleTimeFrequencyMHz;
+}
+
+static inline uint64_t ToNanoSeconds(const FILETIME& aFileTime) {
+ // FILETIME values are 100-nanoseconds units, converting
+ ULARGE_INTEGER usec = {{aFileTime.dwLowDateTime, aFileTime.dwHighDateTime}};
+ return usec.QuadPart * 100;
+}
+
+namespace mozilla::profiler {
+bool GetCpuTimeSinceThreadStartInNs(
+ uint64_t* aResult, const mozilla::profiler::PlatformData& aPlatformData) {
+ const HANDLE profiledThread = aPlatformData.ProfiledThread();
+ int frequencyInMHz = GetCycleTimeFrequencyMHz();
+ if (frequencyInMHz) {
+ uint64_t cpuCycleCount;
+ if (!QueryThreadCycleTime(profiledThread, &cpuCycleCount)) {
+ return false;
+ }
+
+ constexpr uint64_t USEC_PER_NSEC = 1000L;
+ *aResult = cpuCycleCount * USEC_PER_NSEC / frequencyInMHz;
+ return true;
+ }
+
+ FILETIME createTime, exitTime, kernelTime, userTime;
+ if (!GetThreadTimes(profiledThread, &createTime, &exitTime, &kernelTime,
+ &userTime)) {
+ return false;
+ }
+
+ *aResult = ToNanoSeconds(kernelTime) + ToNanoSeconds(userTime);
+ return true;
+}
+} // namespace mozilla::profiler
+
+static RunningTimes GetProcessRunningTimesDiff(
+ PSLockRef aLock, RunningTimes& aPreviousRunningTimesToBeUpdated) {
+ AUTO_PROFILER_STATS(GetProcessRunningTimes);
+
+ static const HANDLE processHandle = GetCurrentProcess();
+
+ RunningTimes newRunningTimes;
+ {
+ AUTO_PROFILER_STATS(GetProcessRunningTimes_QueryProcessCycleTime);
+ if (ULONG64 cycles; QueryProcessCycleTime(processHandle, &cycles) != 0) {
+ newRunningTimes.SetThreadCPUDelta(cycles);
+ }
+ newRunningTimes.SetPostMeasurementTimeStamp(TimeStamp::Now());
+ };
+
+ const RunningTimes diff = newRunningTimes - aPreviousRunningTimesToBeUpdated;
+ aPreviousRunningTimesToBeUpdated = newRunningTimes;
+ return diff;
+}
+
+static RunningTimes GetThreadRunningTimesDiff(
+ PSLockRef aLock,
+ ThreadRegistration::UnlockedRWForLockedProfiler& aThreadData) {
+ AUTO_PROFILER_STATS(GetThreadRunningTimes);
+
+ const mozilla::profiler::PlatformData& platformData =
+ aThreadData.PlatformDataCRef();
+ const HANDLE profiledThread = platformData.ProfiledThread();
+
+ const RunningTimes newRunningTimes = GetRunningTimesWithTightTimestamp(
+ [profiledThread](RunningTimes& aRunningTimes) {
+ AUTO_PROFILER_STATS(GetThreadRunningTimes_QueryThreadCycleTime);
+ if (ULONG64 cycles;
+ QueryThreadCycleTime(profiledThread, &cycles) != 0) {
+ aRunningTimes.ResetThreadCPUDelta(cycles);
+ } else {
+ aRunningTimes.ClearThreadCPUDelta();
+ }
+ });
+
+ ProfiledThreadData* profiledThreadData =
+ aThreadData.GetProfiledThreadData(aLock);
+ MOZ_ASSERT(profiledThreadData);
+ RunningTimes& previousRunningTimes =
+ profiledThreadData->PreviousThreadRunningTimesRef();
+ const RunningTimes diff = newRunningTimes - previousRunningTimes;
+ previousRunningTimes = newRunningTimes;
+ return diff;
+}
+
+static void DiscardSuspendedThreadRunningTimes(
+ PSLockRef aLock,
+ ThreadRegistration::UnlockedRWForLockedProfiler& aThreadData) {
+ AUTO_PROFILER_STATS(DiscardSuspendedThreadRunningTimes);
+
+ // On Windows, suspending a thread makes that thread work a little bit. So we
+ // want to discard any added running time since the call to
+ // GetThreadRunningTimesDiff, which is done by overwriting the thread's
+ // PreviousThreadRunningTimesRef() with the current running time now.
+
+ const mozilla::profiler::PlatformData& platformData =
+ aThreadData.PlatformDataCRef();
+ const HANDLE profiledThread = platformData.ProfiledThread();
+
+ ProfiledThreadData* profiledThreadData =
+ aThreadData.GetProfiledThreadData(aLock);
+ MOZ_ASSERT(profiledThreadData);
+ RunningTimes& previousRunningTimes =
+ profiledThreadData->PreviousThreadRunningTimesRef();
+
+ if (ULONG64 cycles; QueryThreadCycleTime(profiledThread, &cycles) != 0) {
+ previousRunningTimes.ResetThreadCPUDelta(cycles);
+ } else {
+ previousRunningTimes.ClearThreadCPUDelta();
+ }
+}
+
+template <typename Func>
+void Sampler::SuspendAndSampleAndResumeThread(
+ PSLockRef aLock,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const TimeStamp& aNow, const Func& aProcessRegs) {
+ HANDLE profiled_thread = aThreadData.PlatformDataCRef().ProfiledThread();
+ if (profiled_thread == nullptr) {
+ return;
+ }
+
+ // Context used for sampling the register state of the profiled thread.
+ CONTEXT context;
+ memset(&context, 0, sizeof(context));
+
+ //----------------------------------------------------------------//
+ // Suspend the samplee thread and get its context.
+
+ static const DWORD kSuspendFailed = static_cast<DWORD>(-1);
+ if (SuspendThread(profiled_thread) == kSuspendFailed) {
+ return;
+ }
+
+ // SuspendThread is asynchronous, so the thread may still be running.
+ // Call GetThreadContext first to ensure the thread is really suspended.
+ // See https://blogs.msdn.microsoft.com/oldnewthing/20150205-00/?p=44743.
+
+ // Using only CONTEXT_CONTROL is faster but on 64-bit it causes crashes in
+ // RtlVirtualUnwind (see bug 1120126) so we set all the flags.
+#if defined(GP_ARCH_amd64)
+ context.ContextFlags = CONTEXT_FULL;
+#else
+ context.ContextFlags = CONTEXT_CONTROL;
+#endif
+ if (!GetThreadContext(profiled_thread, &context)) {
+ ResumeThread(profiled_thread);
+ return;
+ }
+
+ //----------------------------------------------------------------//
+ // Sample the target thread.
+
+ // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+ //
+ // The profiler's "critical section" begins here. We must be very careful
+ // what we do here, or risk deadlock. See the corresponding comment in
+ // platform-linux-android.cpp for details.
+
+ Registers regs;
+ PopulateRegsFromContext(regs, &context);
+ aProcessRegs(regs, aNow);
+
+ //----------------------------------------------------------------//
+ // Resume the target thread.
+
+ ResumeThread(profiled_thread);
+
+ // The profiler's critical section ends here.
+ //
+ // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+}
+
+// END Sampler target specifics
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN SamplerThread target specifics
+
+static unsigned int __stdcall ThreadEntry(void* aArg) {
+ auto thread = static_cast<SamplerThread*>(aArg);
+ thread->Run();
+ return 0;
+}
+
+static unsigned int __stdcall UnregisteredThreadSpyEntry(void* aArg) {
+ auto thread = static_cast<SamplerThread*>(aArg);
+ thread->RunUnregisteredThreadSpy();
+ return 0;
+}
+
+SamplerThread::SamplerThread(PSLockRef aLock, uint32_t aActivityGeneration,
+ double aIntervalMilliseconds, uint32_t aFeatures)
+ : mSampler(aLock),
+ mActivityGeneration(aActivityGeneration),
+ mIntervalMicroseconds(
+ std::max(1, int(floor(aIntervalMilliseconds * 1000 + 0.5)))),
+ mNoTimerResolutionChange(
+ ProfilerFeature::HasNoTimerResolutionChange(aFeatures)) {
+ if ((!mNoTimerResolutionChange) && (mIntervalMicroseconds < 10 * 1000)) {
+ // By default the timer resolution (which tends to be 1/64Hz, around 16ms)
+ // is not changed. However, if the requested interval is sufficiently low,
+ // the resolution will be adjusted to match. Note that this affects all
+ // timers in Firefox, and could therefore hide issues while profiling. This
+ // change may be prevented with the "notimerresolutionchange" feature.
+ ::timeBeginPeriod(mIntervalMicroseconds / 1000);
+ }
+
+ if (ProfilerFeature::HasUnregisteredThreads(aFeatures)) {
+ // Sampler&spy threads are not running yet, so it's safe to modify
+ // mSpyingState without locking the monitor.
+ mSpyingState = SpyingState::Spy_Initializing;
+ mUnregisteredThreadSpyThread = reinterpret_cast<HANDLE>(
+ _beginthreadex(nullptr,
+ /* stack_size */ 0, UnregisteredThreadSpyEntry, this,
+ /* initflag */ 0, nullptr));
+ if (mUnregisteredThreadSpyThread == 0) {
+ MOZ_CRASH("_beginthreadex failed");
+ }
+ }
+
+ // Create a new thread. It is important to use _beginthreadex() instead of
+ // the Win32 function CreateThread(), because the CreateThread() does not
+ // initialize thread-specific structures in the C runtime library.
+ mThread = reinterpret_cast<HANDLE>(_beginthreadex(nullptr,
+ /* stack_size */ 0,
+ ThreadEntry, this,
+ /* initflag */ 0, nullptr));
+ if (mThread == 0) {
+ MOZ_CRASH("_beginthreadex failed");
+ }
+}
+
+SamplerThread::~SamplerThread() {
+ if (mUnregisteredThreadSpyThread) {
+ {
+ // Make sure the spying thread is not actively working, because the win32
+ // function it's using could deadlock with WaitForSingleObject below.
+ MonitorAutoLock spyingStateLock{mSpyingStateMonitor};
+ while (mSpyingState != SpyingState::Spy_Waiting &&
+ mSpyingState != SpyingState::SamplerToSpy_Start) {
+ spyingStateLock.Wait();
+ }
+
+ mSpyingState = SpyingState::MainToSpy_Shutdown;
+ spyingStateLock.NotifyAll();
+
+ do {
+ spyingStateLock.Wait();
+ } while (mSpyingState != SpyingState::SpyToMain_ShuttingDown);
+ }
+
+ WaitForSingleObject(mUnregisteredThreadSpyThread, INFINITE);
+
+ // Close our own handle for the thread.
+ if (mUnregisteredThreadSpyThread != kNoThread) {
+ CloseHandle(mUnregisteredThreadSpyThread);
+ }
+ }
+
+ WaitForSingleObject(mThread, INFINITE);
+
+ // Close our own handle for the thread.
+ if (mThread != kNoThread) {
+ CloseHandle(mThread);
+ }
+
+ // Just in the unlikely case some callbacks were added between the end of the
+ // thread and now.
+ InvokePostSamplingCallbacks(std::move(mPostSamplingCallbackList),
+ SamplingState::JustStopped);
+}
+
+void SamplerThread::RunUnregisteredThreadSpy() {
+ // TODO: Consider registering this thread.
+ // Pros: Remove from list of unregistered threads; Not useful to profiling
+ // Firefox itself.
+ // Cons: Doesn't appear in the profile, so users may miss the expensive CPU
+ // cost of this work on Windows.
+ PR_SetCurrentThreadName("UnregisteredThreadSpy");
+
+ while (true) {
+ {
+ MonitorAutoLock spyingStateLock{mSpyingStateMonitor};
+ // Either this is the first loop, or we're looping after working.
+ MOZ_ASSERT(mSpyingState == SpyingState::Spy_Initializing ||
+ mSpyingState == SpyingState::Spy_Working);
+
+ // Let everyone know we're waiting, and then wait.
+ mSpyingState = SpyingState::Spy_Waiting;
+ mSpyingStateMonitor.NotifyAll();
+ do {
+ spyingStateLock.Wait();
+ } while (mSpyingState == SpyingState::Spy_Waiting);
+
+ if (mSpyingState == SpyingState::MainToSpy_Shutdown) {
+ mSpyingState = SpyingState::SpyToMain_ShuttingDown;
+ mSpyingStateMonitor.NotifyAll();
+ break;
+ }
+
+ MOZ_ASSERT(mSpyingState == SpyingState::SamplerToSpy_Start);
+ mSpyingState = SpyingState::Spy_Working;
+ }
+
+ // Do the work without lock, so other threads can read the current state.
+ SpyOnUnregisteredThreads();
+ }
+}
+
+void SamplerThread::SleepMicro(uint32_t aMicroseconds) {
+ // For now, keep the old behaviour of minimum Sleep(1), even for
+ // smaller-than-usual sleeps after an overshoot, unless the user has
+ // explicitly opted into a sub-millisecond profiler interval.
+ if (mIntervalMicroseconds >= 1000) {
+ ::Sleep(std::max(1u, aMicroseconds / 1000));
+ } else {
+ TimeStamp start = TimeStamp::Now();
+ TimeStamp end = start + TimeDuration::FromMicroseconds(aMicroseconds);
+
+ // First, sleep for as many whole milliseconds as possible.
+ if (aMicroseconds >= 1000) {
+ ::Sleep(aMicroseconds / 1000);
+ }
+
+ // Then, spin until enough time has passed.
+ while (TimeStamp::Now() < end) {
+ YieldProcessor();
+ }
+ }
+}
+
+void SamplerThread::Stop(PSLockRef aLock) {
+ if ((!mNoTimerResolutionChange) && (mIntervalMicroseconds < 10 * 1000)) {
+ // Disable any timer resolution changes we've made. Do it now while
+ // gPSMutex is locked, i.e. before any other SamplerThread can be created
+ // and call ::timeBeginPeriod().
+ //
+ // It's safe to do this now even though this SamplerThread is still alive,
+ // because the next time the main loop of Run() iterates it won't get past
+ // the mActivityGeneration check, and so it won't make any more ::Sleep()
+ // calls.
+ ::timeEndPeriod(mIntervalMicroseconds / 1000);
+ }
+
+ mSampler.Disable(aLock);
+}
+
+// END SamplerThread target specifics
+////////////////////////////////////////////////////////////////////////
+
+static void PlatformInit(PSLockRef aLock) {}
+
+#if defined(HAVE_NATIVE_UNWIND)
+# define REGISTERS_SYNC_POPULATE(regs) \
+ CONTEXT context; \
+ RtlCaptureContext(&context); \
+ PopulateRegsFromContext(regs, &context);
+#endif
+
+#if defined(GP_PLAT_amd64_windows)
+
+// Use InitializeWin64ProfilerHooks from the base profiler.
+
+namespace mozilla {
+namespace baseprofiler {
+MFBT_API void InitializeWin64ProfilerHooks();
+} // namespace baseprofiler
+} // namespace mozilla
+
+using mozilla::baseprofiler::InitializeWin64ProfilerHooks;
+
+#endif // defined(GP_PLAT_amd64_windows)
diff --git a/tools/profiler/core/platform.cpp b/tools/profiler/core/platform.cpp
new file mode 100644
index 0000000000..8950c48b58
--- /dev/null
+++ b/tools/profiler/core/platform.cpp
@@ -0,0 +1,7067 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// There are three kinds of samples done by the profiler.
+//
+// - A "periodic" sample is the most complex kind. It is done in response to a
+// timer while the profiler is active. It involves writing a stack trace plus
+// a variety of other values (memory measurements, responsiveness
+// measurements, markers, etc.) into the main ProfileBuffer. The sampling is
+// done from off-thread, and so SuspendAndSampleAndResumeThread() is used to
+// get the register values.
+//
+// - A "synchronous" sample is a simpler kind. It is done in response to an API
+// call (profiler_get_backtrace()). It involves writing a stack trace and
+// little else into a temporary ProfileBuffer, and wrapping that up in a
+// ProfilerBacktrace that can be subsequently used in a marker. The sampling
+// is done on-thread, and so REGISTERS_SYNC_POPULATE() is used to get the
+// register values.
+//
+// - A "backtrace" sample is the simplest kind. It is done in response to an
+// API call (profiler_suspend_and_sample_thread()). It involves getting a
+// stack trace via a ProfilerStackCollector; it does not write to a
+// ProfileBuffer. The sampling is done from off-thread, and so uses
+// SuspendAndSampleAndResumeThread() to get the register values.
+
+#include "platform.h"
+
+#include "GeckoProfiler.h"
+#include "GeckoProfilerReporter.h"
+#include "PageInformation.h"
+#include "PowerCounters.h"
+#include "ProfileBuffer.h"
+#include "ProfiledThreadData.h"
+#include "ProfilerBacktrace.h"
+#include "ProfilerChild.h"
+#include "ProfilerCodeAddressService.h"
+#include "ProfilerControl.h"
+#include "ProfilerIOInterposeObserver.h"
+#include "ProfilerParent.h"
+#include "ProfilerRustBindings.h"
+#include "mozilla/MozPromise.h"
+#include "shared-libraries.h"
+#include "VTuneProfiler.h"
+
+#include "js/ProfilingFrameIterator.h"
+#include "memory_hooks.h"
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/AutoProfilerLabel.h"
+#include "mozilla/BaseAndGeckoProfilerDetail.h"
+#include "mozilla/ExtensionPolicyService.h"
+#include "mozilla/extensions/WebExtensionPolicy.h"
+#include "mozilla/glean/GleanMetrics.h"
+#include "mozilla/Monitor.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/Printf.h"
+#include "mozilla/ProcInfo.h"
+#include "mozilla/ProfileBufferChunkManagerSingle.h"
+#include "mozilla/ProfileBufferChunkManagerWithLocalLimit.h"
+#include "mozilla/ProfileChunkedBuffer.h"
+#include "mozilla/SchedulerGroup.h"
+#include "mozilla/Services.h"
+#include "mozilla/StackWalk.h"
+#ifdef XP_WIN
+# include "mozilla/StackWalkThread.h"
+#endif
+#include "mozilla/StaticPtr.h"
+#include "mozilla/ThreadLocal.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Vector.h"
+#include "BaseProfiler.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsDirectoryServiceUtils.h"
+#include "nsIDocShell.h"
+#include "nsIHttpProtocolHandler.h"
+#include "nsIObserverService.h"
+#include "nsIPropertyBag2.h"
+#include "nsIXULAppInfo.h"
+#include "nsIXULRuntime.h"
+#include "nsJSPrincipals.h"
+#include "nsMemoryReporterManager.h"
+#include "nsPIDOMWindow.h"
+#include "nsProfilerStartParams.h"
+#include "nsScriptSecurityManager.h"
+#include "nsSystemInfo.h"
+#include "nsThreadUtils.h"
+#include "nsXULAppAPI.h"
+#include "Tracing.h"
+#include "prdtoa.h"
+#include "prtime.h"
+
+#include <algorithm>
+#include <errno.h>
+#include <fstream>
+#include <ostream>
+#include <set>
+#include <sstream>
+#include <string_view>
+#include <type_traits>
+
+#if defined(GP_OS_android)
+# include "JavaExceptions.h"
+# include "mozilla/java/GeckoJavaSamplerNatives.h"
+# include "mozilla/jni/Refs.h"
+#endif
+
+#if defined(GP_OS_darwin)
+# include "nsCocoaFeatures.h"
+#endif
+
+#if defined(GP_PLAT_amd64_darwin)
+# include <cpuid.h>
+#endif
+
+#if defined(GP_OS_windows)
+# include <processthreadsapi.h>
+
+// GetThreadInformation is not available on Windows 7.
+WINBASEAPI
+BOOL WINAPI GetThreadInformation(
+ _In_ HANDLE hThread, _In_ THREAD_INFORMATION_CLASS ThreadInformationClass,
+ _Out_writes_bytes_(ThreadInformationSize) LPVOID ThreadInformation,
+ _In_ DWORD ThreadInformationSize);
+
+#endif
+
+// Win32 builds always have frame pointers, so FramePointerStackWalk() always
+// works.
+#if defined(GP_PLAT_x86_windows)
+# define HAVE_NATIVE_UNWIND
+# define USE_FRAME_POINTER_STACK_WALK
+#endif
+
+// Win64 builds always omit frame pointers, so we use the slower
+// MozStackWalk(), which works in that case.
+#if defined(GP_PLAT_amd64_windows)
+# define HAVE_NATIVE_UNWIND
+# define USE_MOZ_STACK_WALK
+#endif
+
+// AArch64 Win64 doesn't seem to use frame pointers, so we use the slower
+// MozStackWalk().
+#if defined(GP_PLAT_arm64_windows)
+# define HAVE_NATIVE_UNWIND
+# define USE_MOZ_STACK_WALK
+#endif
+
+// Mac builds use FramePointerStackWalk(). Even if we build without
+// frame pointers, we'll still get useful stacks in system libraries
+// because those always have frame pointers.
+// We don't use MozStackWalk() on Mac.
+#if defined(GP_OS_darwin)
+# define HAVE_NATIVE_UNWIND
+# define USE_FRAME_POINTER_STACK_WALK
+#endif
+
+// Android builds use the ARM Exception Handling ABI to unwind.
+#if defined(GP_PLAT_arm_linux) || defined(GP_PLAT_arm_android)
+# define HAVE_NATIVE_UNWIND
+# define USE_EHABI_STACKWALK
+# include "EHABIStackWalk.h"
+#endif
+
+// Linux/BSD builds use LUL, which uses DWARF info to unwind stacks.
+#if defined(GP_PLAT_amd64_linux) || defined(GP_PLAT_x86_linux) || \
+ defined(GP_PLAT_amd64_android) || defined(GP_PLAT_x86_android) || \
+ defined(GP_PLAT_mips64_linux) || defined(GP_PLAT_arm64_linux) || \
+ defined(GP_PLAT_arm64_android) || defined(GP_PLAT_amd64_freebsd) || \
+ defined(GP_PLAT_arm64_freebsd)
+# define HAVE_NATIVE_UNWIND
+# define USE_LUL_STACKWALK
+# include "lul/LulMain.h"
+# include "lul/platform-linux-lul.h"
+
+// On linux we use LUL for periodic samples and synchronous samples, but we use
+// FramePointerStackWalk for backtrace samples when MOZ_PROFILING is enabled.
+// (See the comment at the top of the file for a definition of
+// periodic/synchronous/backtrace.).
+//
+// FramePointerStackWalk can produce incomplete stacks when the current entry is
+// in a shared library without framepointers, however LUL can take a long time
+// to initialize, which is undesirable for consumers of
+// profiler_suspend_and_sample_thread like the Background Hang Reporter.
+# if defined(MOZ_PROFILING)
+# define USE_FRAME_POINTER_STACK_WALK
+# endif
+#endif
+
+// We can only stackwalk without expensive initialization on platforms which
+// support FramePointerStackWalk or MozStackWalk. LUL Stackwalking requires
+// initializing LUL, and EHABIStackWalk requires initializing EHABI, both of
+// which can be expensive.
+#if defined(USE_FRAME_POINTER_STACK_WALK) || defined(USE_MOZ_STACK_WALK)
+# define HAVE_FASTINIT_NATIVE_UNWIND
+#endif
+
+#ifdef MOZ_VALGRIND
+# include <valgrind/memcheck.h>
+#else
+# define VALGRIND_MAKE_MEM_DEFINED(_addr, _len) ((void)0)
+#endif
+
+#if defined(GP_OS_linux) || defined(GP_OS_android) || defined(GP_OS_freebsd)
+# include <ucontext.h>
+#endif
+
+using namespace mozilla;
+using namespace mozilla::literals::ProportionValue_literals;
+
+using mozilla::profiler::detail::RacyFeatures;
+using ThreadRegistration = mozilla::profiler::ThreadRegistration;
+using ThreadRegistrationInfo = mozilla::profiler::ThreadRegistrationInfo;
+using ThreadRegistry = mozilla::profiler::ThreadRegistry;
+
+LazyLogModule gProfilerLog("prof");
+
+ProfileChunkedBuffer& profiler_get_core_buffer() {
+ // Defer to the Base Profiler in mozglue to create the core buffer if needed,
+ // and keep a reference here, for quick access in xul.
+ static ProfileChunkedBuffer& sProfileChunkedBuffer =
+ baseprofiler::profiler_get_core_buffer();
+ return sProfileChunkedBuffer;
+}
+
+mozilla::Atomic<int, mozilla::MemoryOrdering::Relaxed> gSkipSampling;
+
+#if defined(GP_OS_android)
+class GeckoJavaSampler
+ : public java::GeckoJavaSampler::Natives<GeckoJavaSampler> {
+ private:
+ GeckoJavaSampler();
+
+ public:
+ static double GetProfilerTime() {
+ if (!profiler_is_active()) {
+ return 0.0;
+ }
+ return profiler_time();
+ };
+
+ static void JavaStringArrayToCharArray(jni::ObjectArray::Param& aJavaArray,
+ Vector<const char*>& aCharArray,
+ JNIEnv* aJni) {
+ int arraySize = aJavaArray->Length();
+ for (int i = 0; i < arraySize; i++) {
+ jstring javaString =
+ (jstring)(aJni->GetObjectArrayElement(aJavaArray.Get(), i));
+ const char* filterString = aJni->GetStringUTFChars(javaString, 0);
+ // FIXME. These strings are leaked.
+ MOZ_RELEASE_ASSERT(aCharArray.append(filterString));
+ }
+ }
+
+ static void StartProfiler(jni::ObjectArray::Param aFiltersArray,
+ jni::ObjectArray::Param aFeaturesArray) {
+ JNIEnv* jni = jni::GetEnvForThread();
+ Vector<const char*> filtersTemp;
+ Vector<const char*> featureStringArray;
+
+ JavaStringArrayToCharArray(aFiltersArray, filtersTemp, jni);
+ JavaStringArrayToCharArray(aFeaturesArray, featureStringArray, jni);
+
+ uint32_t features = 0;
+ features = ParseFeaturesFromStringArray(featureStringArray.begin(),
+ featureStringArray.length());
+
+ // 128 * 1024 * 1024 is the entries preset that is given in
+ // devtools/client/performance-new/shared/background.jsm.js
+ profiler_start(PowerOfTwo32(128 * 1024 * 1024), 5.0, features,
+ filtersTemp.begin(), filtersTemp.length(), 0, Nothing());
+ }
+
+ static void StopProfiler(jni::Object::Param aGeckoResult) {
+ auto result = java::GeckoResult::LocalRef(aGeckoResult);
+ profiler_pause();
+ nsCOMPtr<nsIProfiler> nsProfiler(
+ do_GetService("@mozilla.org/tools/profiler;1"));
+ nsProfiler->GetProfileDataAsGzippedArrayBufferAndroid(0)->Then(
+ GetMainThreadSerialEventTarget(), __func__,
+ [result](FallibleTArray<uint8_t> compressedProfile) {
+ result->Complete(jni::ByteArray::New(
+ reinterpret_cast<const int8_t*>(compressedProfile.Elements()),
+ compressedProfile.Length()));
+
+ // Done with capturing a profile. Stop the profiler.
+ profiler_stop();
+ },
+ [result](nsresult aRv) {
+ char errorString[9];
+ sprintf(errorString, "%08x", aRv);
+ result->CompleteExceptionally(
+ mozilla::java::sdk::IllegalStateException::New(errorString)
+ .Cast<jni::Throwable>());
+
+ // Failed to capture a profile. Stop the profiler.
+ profiler_stop();
+ });
+ }
+};
+#endif
+
+constexpr static bool ValidateFeatures() {
+ int expectedFeatureNumber = 0;
+
+ // Feature numbers should start at 0 and increase by 1 each.
+#define CHECK_FEATURE(n_, str_, Name_, desc_) \
+ if ((n_) != expectedFeatureNumber) { \
+ return false; \
+ } \
+ ++expectedFeatureNumber;
+
+ PROFILER_FOR_EACH_FEATURE(CHECK_FEATURE)
+
+#undef CHECK_FEATURE
+
+ return true;
+}
+
+static_assert(ValidateFeatures(), "Feature list is invalid");
+
+// Return all features that are available on this platform.
+static uint32_t AvailableFeatures() {
+ uint32_t features = 0;
+
+#define ADD_FEATURE(n_, str_, Name_, desc_) \
+ ProfilerFeature::Set##Name_(features);
+
+ // Add all the possible features.
+ PROFILER_FOR_EACH_FEATURE(ADD_FEATURE)
+
+#undef ADD_FEATURE
+
+ // Now remove features not supported on this platform/configuration.
+#if !defined(GP_OS_android)
+ ProfilerFeature::ClearJava(features);
+#endif
+#if !defined(HAVE_NATIVE_UNWIND)
+ ProfilerFeature::ClearStackWalk(features);
+#endif
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ if (getenv("XPCOM_MEM_BLOAT_LOG")) {
+ NS_WARNING("XPCOM_MEM_BLOAT_LOG is set, disabling native allocations.");
+ // The memory hooks are available, but the bloat log is enabled, which is
+ // not compatible with the native allocations tracking. See the comment in
+ // enable_native_allocations() (tools/profiler/core/memory_hooks.cpp) for
+ // more information.
+ ProfilerFeature::ClearNativeAllocations(features);
+ }
+#else
+ // The memory hooks are not available.
+ ProfilerFeature::ClearNativeAllocations(features);
+#endif
+
+#if !defined(GP_OS_windows)
+ ProfilerFeature::ClearNoTimerResolutionChange(features);
+#endif
+
+ return features;
+}
+
+// Default features common to all contexts (even if not available).
+static constexpr uint32_t DefaultFeatures() {
+ return ProfilerFeature::Java | ProfilerFeature::JS |
+ ProfilerFeature::StackWalk | ProfilerFeature::CPUUtilization |
+ ProfilerFeature::Screenshots | ProfilerFeature::ProcessCPU;
+}
+
+// Extra default features when MOZ_PROFILER_STARTUP is set (even if not
+// available).
+static constexpr uint32_t StartupExtraDefaultFeatures() {
+ // Enable file I/Os by default for startup profiles as startup is heavy on
+ // I/O operations.
+ return ProfilerFeature::FileIOAll | ProfilerFeature::IPCMessages;
+}
+
+Json::String ToCompactString(const Json::Value& aJsonValue) {
+ Json::StreamWriterBuilder builder;
+ // No indentations, and no newlines.
+ builder["indentation"] = "";
+ // This removes spaces after colons.
+ builder["enableYAMLCompatibility"] = false;
+ // Only 6 digits after the decimal point; timestamps in ms have ns precision.
+ builder["precision"] = 6;
+ builder["precisionType"] = "decimal";
+
+ return Json::writeString(builder, aJsonValue);
+}
+
+/* static */ mozilla::baseprofiler::detail::BaseProfilerMutex
+ ProfilingLog::gMutex;
+/* static */ mozilla::UniquePtr<Json::Value> ProfilingLog::gLog;
+
+/* static */ void ProfilingLog::Init() {
+ mozilla::baseprofiler::detail::BaseProfilerAutoLock lock{gMutex};
+ MOZ_ASSERT(!gLog);
+ gLog = mozilla::MakeUniqueFallible<Json::Value>(Json::objectValue);
+ if (gLog) {
+ (*gLog)[Json::StaticString{"profilingLogBegin" TIMESTAMP_JSON_SUFFIX}] =
+ ProfilingLog::Timestamp();
+ }
+}
+
+/* static */ void ProfilingLog::Destroy() {
+ mozilla::baseprofiler::detail::BaseProfilerAutoLock lock{gMutex};
+ MOZ_ASSERT(gLog);
+ gLog = nullptr;
+}
+
+/* static */ bool ProfilingLog::IsLockedOnCurrentThread() {
+ return gMutex.IsLockedOnCurrentThread();
+}
+
+// RAII class to lock the profiler mutex.
+// It provides a mechanism to determine if it is locked or not in order for
+// memory hooks to avoid re-entering the profiler locked state.
+// Locking order: Profiler, ThreadRegistry, ThreadRegistration.
+class MOZ_RAII PSAutoLock {
+ public:
+ PSAutoLock()
+ : mLock([]() -> mozilla::baseprofiler::detail::BaseProfilerMutex& {
+ // In DEBUG builds, *before* we attempt to lock gPSMutex, we want to
+ // check that the ThreadRegistry, ThreadRegistration, and ProfilingLog
+ // mutexes are *not* locked on this thread, to avoid inversion
+ // deadlocks.
+ MOZ_ASSERT(!ThreadRegistry::IsRegistryMutexLockedOnCurrentThread());
+ MOZ_ASSERT(!ThreadRegistration::IsDataMutexLockedOnCurrentThread());
+ MOZ_ASSERT(!ProfilingLog::IsLockedOnCurrentThread());
+ return gPSMutex;
+ }()) {}
+
+ PSAutoLock(const PSAutoLock&) = delete;
+ void operator=(const PSAutoLock&) = delete;
+
+ static bool IsLockedOnCurrentThread() {
+ return gPSMutex.IsLockedOnCurrentThread();
+ }
+
+ private:
+ static mozilla::baseprofiler::detail::BaseProfilerMutex gPSMutex;
+ mozilla::baseprofiler::detail::BaseProfilerAutoLock mLock;
+};
+
+/* static */ mozilla::baseprofiler::detail::BaseProfilerMutex
+ PSAutoLock::gPSMutex{"Gecko Profiler mutex"};
+
+// Only functions that take a PSLockRef arg can access CorePS's and ActivePS's
+// fields.
+typedef const PSAutoLock& PSLockRef;
+
+#define PS_GET(type_, name_) \
+ static type_ name_(PSLockRef) { \
+ MOZ_ASSERT(sInstance); \
+ return sInstance->m##name_; \
+ }
+
+#define PS_GET_LOCKLESS(type_, name_) \
+ static type_ name_() { \
+ MOZ_ASSERT(sInstance); \
+ return sInstance->m##name_; \
+ }
+
+#define PS_GET_AND_SET(type_, name_) \
+ PS_GET(type_, name_) \
+ static void Set##name_(PSLockRef, type_ a##name_) { \
+ MOZ_ASSERT(sInstance); \
+ sInstance->m##name_ = a##name_; \
+ }
+
+static constexpr size_t MAX_JS_FRAMES =
+ mozilla::profiler::ThreadRegistrationData::MAX_JS_FRAMES;
+using JsFrame = mozilla::profiler::ThreadRegistrationData::JsFrame;
+using JsFrameBuffer = mozilla::profiler::ThreadRegistrationData::JsFrameBuffer;
+
+// All functions in this file can run on multiple threads unless they have an
+// NS_IsMainThread() assertion.
+
+// This class contains the profiler's core global state, i.e. that which is
+// valid even when the profiler is not active. Most profile operations can't do
+// anything useful when this class is not instantiated, so we release-assert
+// its non-nullness in all such operations.
+//
+// Accesses to CorePS are guarded by gPSMutex. Getters and setters take a
+// PSAutoLock reference as an argument as proof that the gPSMutex is currently
+// locked. This makes it clear when gPSMutex is locked and helps avoid
+// accidental unlocked accesses to global state. There are ways to circumvent
+// this mechanism, but please don't do so without *very* good reason and a
+// detailed explanation.
+//
+// The exceptions to this rule:
+//
+// - mProcessStartTime, because it's immutable;
+class CorePS {
+ private:
+ CorePS()
+ : mProcessStartTime(TimeStamp::ProcessCreation())
+#ifdef USE_LUL_STACKWALK
+ ,
+ mLul(nullptr)
+#endif
+ {
+ MOZ_ASSERT(NS_IsMainThread(),
+ "CorePS must be created from the main thread");
+ }
+
+ ~CorePS() {
+#ifdef USE_LUL_STACKWALK
+ delete sInstance->mLul;
+#endif
+ }
+
+ public:
+ static void Create(PSLockRef aLock) {
+ MOZ_ASSERT(!sInstance);
+ sInstance = new CorePS();
+ }
+
+ static void Destroy(PSLockRef aLock) {
+ MOZ_ASSERT(sInstance);
+ delete sInstance;
+ sInstance = nullptr;
+ }
+
+ // Unlike ActivePS::Exists(), CorePS::Exists() can be called without gPSMutex
+ // being locked. This is because CorePS is instantiated so early on the main
+ // thread that we don't have to worry about it being racy.
+ static bool Exists() { return !!sInstance; }
+
+ static void AddSizeOf(PSLockRef, MallocSizeOf aMallocSizeOf,
+ size_t& aProfSize, size_t& aLulSize) {
+ MOZ_ASSERT(sInstance);
+
+ aProfSize += aMallocSizeOf(sInstance);
+
+ aProfSize += ThreadRegistry::SizeOfIncludingThis(aMallocSizeOf);
+
+ for (auto& registeredPage : sInstance->mRegisteredPages) {
+ aProfSize += registeredPage->SizeOfIncludingThis(aMallocSizeOf);
+ }
+
+ // Measurement of the following things may be added later if DMD finds it
+ // is worthwhile:
+ // - CorePS::mRegisteredPages itself (its elements' children are
+ // measured above)
+
+#if defined(USE_LUL_STACKWALK)
+ if (lul::LUL* lulPtr = sInstance->mLul; lulPtr) {
+ aLulSize += lulPtr->SizeOfIncludingThis(aMallocSizeOf);
+ }
+#endif
+ }
+
+ // No PSLockRef is needed for this field because it's immutable.
+ PS_GET_LOCKLESS(TimeStamp, ProcessStartTime)
+
+ PS_GET(JsFrameBuffer&, JsFrames)
+
+ PS_GET(Vector<RefPtr<PageInformation>>&, RegisteredPages)
+
+ static void AppendRegisteredPage(PSLockRef,
+ RefPtr<PageInformation>&& aRegisteredPage) {
+ MOZ_ASSERT(sInstance);
+ struct RegisteredPageComparator {
+ PageInformation* aA;
+ bool operator()(PageInformation* aB) const { return aA->Equals(aB); }
+ };
+
+ auto foundPageIter = std::find_if(
+ sInstance->mRegisteredPages.begin(), sInstance->mRegisteredPages.end(),
+ RegisteredPageComparator{aRegisteredPage.get()});
+
+ if (foundPageIter != sInstance->mRegisteredPages.end()) {
+ if ((*foundPageIter)->Url().EqualsLiteral("about:blank")) {
+ // When a BrowsingContext is loaded, the first url loaded in it will be
+ // about:blank, and if the principal matches, the first document loaded
+ // in it will share an inner window. That's why we should delete the
+ // intermittent about:blank if they share the inner window.
+ sInstance->mRegisteredPages.erase(foundPageIter);
+ } else {
+ // Do not register the same page again.
+ return;
+ }
+ }
+
+ MOZ_RELEASE_ASSERT(
+ sInstance->mRegisteredPages.append(std::move(aRegisteredPage)));
+ }
+
+ static void RemoveRegisteredPage(PSLockRef,
+ uint64_t aRegisteredInnerWindowID) {
+ MOZ_ASSERT(sInstance);
+ // Remove RegisteredPage from mRegisteredPages by given inner window ID.
+ sInstance->mRegisteredPages.eraseIf([&](const RefPtr<PageInformation>& rd) {
+ return rd->InnerWindowID() == aRegisteredInnerWindowID;
+ });
+ }
+
+ static void ClearRegisteredPages(PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ sInstance->mRegisteredPages.clear();
+ }
+
+ PS_GET(const Vector<BaseProfilerCount*>&, Counters)
+
+ static void AppendCounter(PSLockRef, BaseProfilerCount* aCounter) {
+ MOZ_ASSERT(sInstance);
+ // we don't own the counter; they may be stored in static objects
+ MOZ_RELEASE_ASSERT(sInstance->mCounters.append(aCounter));
+ }
+
+ static void RemoveCounter(PSLockRef, BaseProfilerCount* aCounter) {
+ // we may be called to remove a counter after the profiler is stopped or
+ // late in shutdown.
+ if (sInstance) {
+ auto* counter = std::find(sInstance->mCounters.begin(),
+ sInstance->mCounters.end(), aCounter);
+ MOZ_RELEASE_ASSERT(counter != sInstance->mCounters.end());
+ sInstance->mCounters.erase(counter);
+ }
+ }
+
+#ifdef USE_LUL_STACKWALK
+ static lul::LUL* Lul() {
+ MOZ_RELEASE_ASSERT(sInstance);
+ return sInstance->mLul;
+ }
+ static void SetLul(UniquePtr<lul::LUL> aLul) {
+ MOZ_RELEASE_ASSERT(sInstance);
+ MOZ_RELEASE_ASSERT(
+ sInstance->mLul.compareExchange(nullptr, aLul.release()));
+ }
+#endif
+
+ PS_GET_AND_SET(const nsACString&, ProcessName)
+ PS_GET_AND_SET(const nsACString&, ETLDplus1)
+
+ private:
+ // The singleton instance
+ static CorePS* sInstance;
+
+ // The time that the process started.
+ const TimeStamp mProcessStartTime;
+
+ // Info on all the registered pages.
+ // InnerWindowIDs in mRegisteredPages are unique.
+ Vector<RefPtr<PageInformation>> mRegisteredPages;
+
+ // Non-owning pointers to all active counters
+ Vector<BaseProfilerCount*> mCounters;
+
+#ifdef USE_LUL_STACKWALK
+ // LUL's state. Null prior to the first activation, non-null thereafter.
+ // Owned by this CorePS.
+ mozilla::Atomic<lul::LUL*> mLul;
+#endif
+
+ // Process name, provided by child process initialization code.
+ nsAutoCString mProcessName;
+ // Private name, provided by child process initialization code (eTLD+1 in
+ // fission)
+ nsAutoCString mETLDplus1;
+
+ // This memory buffer is used by the MergeStacks mechanism. Previously it was
+ // stack allocated, but this led to a stack overflow, as it was too much
+ // memory. Here the buffer can be pre-allocated, and shared with the
+ // MergeStacks feature as needed. MergeStacks is only run while holding the
+ // lock, so it is safe to have only one instance allocated for all of the
+ // threads.
+ JsFrameBuffer mJsFrames;
+};
+
+CorePS* CorePS::sInstance = nullptr;
+
+void locked_profiler_add_sampled_counter(PSLockRef aLock,
+ BaseProfilerCount* aCounter) {
+ CorePS::AppendCounter(aLock, aCounter);
+}
+
+void locked_profiler_remove_sampled_counter(PSLockRef aLock,
+ BaseProfilerCount* aCounter) {
+ // Note: we don't enforce a final sample, though we could do so if the
+ // profiler was active
+ CorePS::RemoveCounter(aLock, aCounter);
+}
+
+class SamplerThread;
+
+static SamplerThread* NewSamplerThread(PSLockRef aLock, uint32_t aGeneration,
+ double aInterval, uint32_t aFeatures);
+
+struct LiveProfiledThreadData {
+ UniquePtr<ProfiledThreadData> mProfiledThreadData;
+};
+
+// The buffer size is provided as a number of "entries", this is their size in
+// bytes.
+constexpr static uint32_t scBytesPerEntry = 8;
+
+// This class contains the profiler's global state that is valid only when the
+// profiler is active. When not instantiated, the profiler is inactive.
+//
+// Accesses to ActivePS are guarded by gPSMutex, in much the same fashion as
+// CorePS.
+//
+class ActivePS {
+ private:
+ // We need to decide how many chunks of what size we want to fit in the given
+ // total maximum capacity for this process, in the (likely) context of
+ // multiple processes doing the same choice and having an inter-process
+ // mechanism to control the overal memory limit.
+
+ // Minimum chunk size allowed, enough for at least one stack.
+ constexpr static uint32_t scMinimumChunkSize =
+ 2 * ProfileBufferChunkManager::scExpectedMaximumStackSize;
+
+ // Ideally we want at least 2 unreleased chunks to work with (1 current and 1
+ // next), and 2 released chunks (so that one can be recycled when old, leaving
+ // one with some data).
+ constexpr static uint32_t scMinimumNumberOfChunks = 4;
+
+ // And we want to limit chunks to a maximum size, which is a compromise
+ // between:
+ // - A big size, which helps with reducing the rate of allocations and IPCs.
+ // - A small size, which helps with equalizing the duration of recorded data
+ // (as the inter-process controller will discard the oldest chunks in all
+ // Firefox processes).
+ constexpr static uint32_t scMaximumChunkSize = 1024 * 1024;
+
+ public:
+ // We should be able to store at least the minimum number of the smallest-
+ // possible chunks.
+ constexpr static uint32_t scMinimumBufferSize =
+ scMinimumNumberOfChunks * scMinimumChunkSize;
+ // Note: Keep in sync with GeckoThread.maybeStartGeckoProfiler:
+ // https://searchfox.org/mozilla-central/source/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoThread.java
+ constexpr static uint32_t scMinimumBufferEntries =
+ scMinimumBufferSize / scBytesPerEntry;
+
+ // Limit to 2GiB.
+ constexpr static uint32_t scMaximumBufferSize = 2u * 1024u * 1024u * 1024u;
+ constexpr static uint32_t scMaximumBufferEntries =
+ scMaximumBufferSize / scBytesPerEntry;
+
+ constexpr static uint32_t ClampToAllowedEntries(uint32_t aEntries) {
+ if (aEntries <= scMinimumBufferEntries) {
+ return scMinimumBufferEntries;
+ }
+ if (aEntries >= scMaximumBufferEntries) {
+ return scMaximumBufferEntries;
+ }
+ return aEntries;
+ }
+
+ private:
+ constexpr static uint32_t ChunkSizeForEntries(uint32_t aEntries) {
+ return uint32_t(std::min(size_t(ClampToAllowedEntries(aEntries)) *
+ scBytesPerEntry / scMinimumNumberOfChunks,
+ size_t(scMaximumChunkSize)));
+ }
+
+ static uint32_t AdjustFeatures(uint32_t aFeatures, uint32_t aFilterCount) {
+ // Filter out any features unavailable in this platform/configuration.
+ aFeatures &= AvailableFeatures();
+
+ // Some features imply others.
+ if (aFeatures & ProfilerFeature::FileIOAll) {
+ aFeatures |= ProfilerFeature::MainThreadIO | ProfilerFeature::FileIO;
+ } else if (aFeatures & ProfilerFeature::FileIO) {
+ aFeatures |= ProfilerFeature::MainThreadIO;
+ }
+
+ if (aFeatures & ProfilerFeature::CPUAllThreads) {
+ aFeatures |= ProfilerFeature::CPUUtilization;
+ }
+
+ return aFeatures;
+ }
+
+ bool ShouldInterposeIOs() {
+ return ProfilerFeature::HasMainThreadIO(mFeatures) ||
+ ProfilerFeature::HasFileIO(mFeatures) ||
+ ProfilerFeature::HasFileIOAll(mFeatures);
+ }
+
+ ActivePS(
+ PSLockRef aLock, const TimeStamp& aProfilingStartTime,
+ PowerOfTwo32 aCapacity, double aInterval, uint32_t aFeatures,
+ const char** aFilters, uint32_t aFilterCount, uint64_t aActiveTabID,
+ const Maybe<double>& aDuration,
+ UniquePtr<ProfileBufferChunkManagerWithLocalLimit> aChunkManagerOrNull)
+ : mProfilingStartTime(aProfilingStartTime),
+ mGeneration(sNextGeneration++),
+ mCapacity(aCapacity),
+ mDuration(aDuration),
+ mInterval(aInterval),
+ mFeatures(AdjustFeatures(aFeatures, aFilterCount)),
+ mActiveTabID(aActiveTabID),
+ mProfileBufferChunkManager(
+ aChunkManagerOrNull
+ ? std::move(aChunkManagerOrNull)
+ : MakeUnique<ProfileBufferChunkManagerWithLocalLimit>(
+ size_t(ClampToAllowedEntries(aCapacity.Value())) *
+ scBytesPerEntry,
+ ChunkSizeForEntries(aCapacity.Value()))),
+ mProfileBuffer([this]() -> ProfileChunkedBuffer& {
+ ProfileChunkedBuffer& coreBuffer = profiler_get_core_buffer();
+ coreBuffer.SetChunkManagerIfDifferent(*mProfileBufferChunkManager);
+ return coreBuffer;
+ }()),
+ mMaybeProcessCPUCounter(ProfilerFeature::HasProcessCPU(aFeatures)
+ ? new ProcessCPUCounter(aLock)
+ : nullptr),
+ mMaybePowerCounters(nullptr),
+ // The new sampler thread doesn't start sampling immediately because the
+ // main loop within Run() is blocked until this function's caller
+ // unlocks gPSMutex.
+ mSamplerThread(
+ NewSamplerThread(aLock, mGeneration, aInterval, aFeatures)),
+ mIsPaused(false),
+ mIsSamplingPaused(false) {
+ ProfilingLog::Init();
+
+ // Deep copy and lower-case aFilters.
+ MOZ_ALWAYS_TRUE(mFilters.resize(aFilterCount));
+ MOZ_ALWAYS_TRUE(mFiltersLowered.resize(aFilterCount));
+ for (uint32_t i = 0; i < aFilterCount; ++i) {
+ mFilters[i] = aFilters[i];
+ mFiltersLowered[i].reserve(mFilters[i].size());
+ std::transform(mFilters[i].cbegin(), mFilters[i].cend(),
+ std::back_inserter(mFiltersLowered[i]), ::tolower);
+ }
+
+#if !defined(RELEASE_OR_BETA)
+ if (ShouldInterposeIOs()) {
+ // We need to register the observer on the main thread, because we want
+ // to observe IO that happens on the main thread.
+ // IOInterposer needs to be initialized before calling
+ // IOInterposer::Register or our observer will be silently dropped.
+ if (NS_IsMainThread()) {
+ IOInterposer::Init();
+ IOInterposer::Register(IOInterposeObserver::OpAll,
+ &ProfilerIOInterposeObserver::GetInstance());
+ } else {
+ NS_DispatchToMainThread(
+ NS_NewRunnableFunction("ActivePS::ActivePS", []() {
+ // Note: This could theoretically happen after ActivePS gets
+ // destroyed, but it's ok:
+ // - The Observer always checks that the profiler is (still)
+ // active before doing its work.
+ // - The destruction should happen on the same thread as this
+ // construction, so the un-registration will also be dispatched
+ // and queued on the main thread, and run after this.
+ IOInterposer::Init();
+ IOInterposer::Register(
+ IOInterposeObserver::OpAll,
+ &ProfilerIOInterposeObserver::GetInstance());
+ }));
+ }
+ }
+#endif
+
+ if (ProfilerFeature::HasPower(aFeatures)) {
+ mMaybePowerCounters = new PowerCounters();
+ for (const auto& powerCounter : mMaybePowerCounters->GetCounters()) {
+ locked_profiler_add_sampled_counter(aLock, powerCounter);
+ }
+ }
+ }
+
+ ~ActivePS() {
+ MOZ_ASSERT(
+ !mMaybeProcessCPUCounter,
+ "mMaybeProcessCPUCounter should have been deleted before ~ActivePS()");
+ MOZ_ASSERT(
+ !mMaybePowerCounters,
+ "mMaybePowerCounters should have been deleted before ~ActivePS()");
+
+#if !defined(RELEASE_OR_BETA)
+ if (ShouldInterposeIOs()) {
+ // We need to unregister the observer on the main thread, because that's
+ // where we've registered it.
+ if (NS_IsMainThread()) {
+ IOInterposer::Unregister(IOInterposeObserver::OpAll,
+ &ProfilerIOInterposeObserver::GetInstance());
+ } else {
+ NS_DispatchToMainThread(
+ NS_NewRunnableFunction("ActivePS::~ActivePS", []() {
+ IOInterposer::Unregister(
+ IOInterposeObserver::OpAll,
+ &ProfilerIOInterposeObserver::GetInstance());
+ }));
+ }
+ }
+#endif
+ if (mProfileBufferChunkManager) {
+ // We still control the chunk manager, remove it from the core buffer.
+ profiler_get_core_buffer().ResetChunkManager();
+ }
+
+ ProfilingLog::Destroy();
+ }
+
+ bool ThreadSelected(const char* aThreadName) {
+ if (mFiltersLowered.empty()) {
+ return true;
+ }
+
+ std::string name = aThreadName;
+ std::transform(name.begin(), name.end(), name.begin(), ::tolower);
+
+ for (const auto& filter : mFiltersLowered) {
+ if (filter == "*") {
+ return true;
+ }
+
+ // Crude, non UTF-8 compatible, case insensitive substring search
+ if (name.find(filter) != std::string::npos) {
+ return true;
+ }
+
+ // If the filter is "pid:<my pid>", profile all threads.
+ if (mozilla::profiler::detail::FilterHasPid(filter.c_str())) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ public:
+ static void Create(
+ PSLockRef aLock, const TimeStamp& aProfilingStartTime,
+ PowerOfTwo32 aCapacity, double aInterval, uint32_t aFeatures,
+ const char** aFilters, uint32_t aFilterCount, uint64_t aActiveTabID,
+ const Maybe<double>& aDuration,
+ UniquePtr<ProfileBufferChunkManagerWithLocalLimit> aChunkManagerOrNull) {
+ MOZ_ASSERT(!sInstance);
+ sInstance = new ActivePS(aLock, aProfilingStartTime, aCapacity, aInterval,
+ aFeatures, aFilters, aFilterCount, aActiveTabID,
+ aDuration, std::move(aChunkManagerOrNull));
+ }
+
+ [[nodiscard]] static SamplerThread* Destroy(PSLockRef aLock) {
+ MOZ_ASSERT(sInstance);
+ if (sInstance->mMaybeProcessCPUCounter) {
+ locked_profiler_remove_sampled_counter(
+ aLock, sInstance->mMaybeProcessCPUCounter);
+ delete sInstance->mMaybeProcessCPUCounter;
+ sInstance->mMaybeProcessCPUCounter = nullptr;
+ }
+
+ if (sInstance->mMaybePowerCounters) {
+ for (const auto& powerCounter :
+ sInstance->mMaybePowerCounters->GetCounters()) {
+ locked_profiler_remove_sampled_counter(aLock, powerCounter);
+ }
+ delete sInstance->mMaybePowerCounters;
+ sInstance->mMaybePowerCounters = nullptr;
+ }
+
+ auto samplerThread = sInstance->mSamplerThread;
+ delete sInstance;
+ sInstance = nullptr;
+
+ return samplerThread;
+ }
+
+ static bool Exists(PSLockRef) { return !!sInstance; }
+
+ static bool Equals(PSLockRef, PowerOfTwo32 aCapacity,
+ const Maybe<double>& aDuration, double aInterval,
+ uint32_t aFeatures, const char** aFilters,
+ uint32_t aFilterCount, uint64_t aActiveTabID) {
+ MOZ_ASSERT(sInstance);
+ if (sInstance->mCapacity != aCapacity ||
+ sInstance->mDuration != aDuration ||
+ sInstance->mInterval != aInterval ||
+ sInstance->mFeatures != aFeatures ||
+ sInstance->mFilters.length() != aFilterCount ||
+ sInstance->mActiveTabID != aActiveTabID) {
+ return false;
+ }
+
+ for (uint32_t i = 0; i < sInstance->mFilters.length(); ++i) {
+ if (strcmp(sInstance->mFilters[i].c_str(), aFilters[i]) != 0) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ static size_t SizeOf(PSLockRef, MallocSizeOf aMallocSizeOf) {
+ MOZ_ASSERT(sInstance);
+
+ size_t n = aMallocSizeOf(sInstance);
+
+ n += sInstance->mProfileBuffer.SizeOfExcludingThis(aMallocSizeOf);
+
+ // Measurement of the following members may be added later if DMD finds it
+ // is worthwhile:
+ // - mLiveProfiledThreads (both the array itself, and the contents)
+ // - mDeadProfiledThreads (both the array itself, and the contents)
+ //
+
+ return n;
+ }
+
+ static ThreadProfilingFeatures ProfilingFeaturesForThread(
+ PSLockRef aLock, const ThreadRegistrationInfo& aInfo) {
+ MOZ_ASSERT(sInstance);
+ if (sInstance->ThreadSelected(aInfo.Name())) {
+ // This thread was selected by the user, record everything.
+ return ThreadProfilingFeatures::Any;
+ }
+ ThreadProfilingFeatures features = ThreadProfilingFeatures::NotProfiled;
+ if (ActivePS::FeatureCPUAllThreads(aLock)) {
+ features = Combine(features, ThreadProfilingFeatures::CPUUtilization);
+ }
+ if (ActivePS::FeatureSamplingAllThreads(aLock)) {
+ features = Combine(features, ThreadProfilingFeatures::Sampling);
+ }
+ if (ActivePS::FeatureMarkersAllThreads(aLock)) {
+ features = Combine(features, ThreadProfilingFeatures::Markers);
+ }
+ return features;
+ }
+
+ [[nodiscard]] static bool AppendPostSamplingCallback(
+ PSLockRef, PostSamplingCallback&& aCallback);
+
+ // Writes out the current active configuration of the profile.
+ static void WriteActiveConfiguration(
+ PSLockRef aLock, JSONWriter& aWriter,
+ const Span<const char>& aPropertyName = MakeStringSpan("")) {
+ if (!sInstance) {
+ if (!aPropertyName.empty()) {
+ aWriter.NullProperty(aPropertyName);
+ } else {
+ aWriter.NullElement();
+ }
+ return;
+ };
+
+ if (!aPropertyName.empty()) {
+ aWriter.StartObjectProperty(aPropertyName);
+ } else {
+ aWriter.StartObjectElement();
+ }
+
+ {
+ aWriter.StartArrayProperty("features");
+#define WRITE_ACTIVE_FEATURES(n_, str_, Name_, desc_) \
+ if (profiler_feature_active(ProfilerFeature::Name_)) { \
+ aWriter.StringElement(str_); \
+ }
+
+ PROFILER_FOR_EACH_FEATURE(WRITE_ACTIVE_FEATURES)
+#undef WRITE_ACTIVE_FEATURES
+ aWriter.EndArray();
+ }
+ {
+ aWriter.StartArrayProperty("threads");
+ for (const auto& filter : sInstance->mFilters) {
+ aWriter.StringElement(filter);
+ }
+ aWriter.EndArray();
+ }
+ {
+ // Now write all the simple values.
+
+ // The interval is also available on profile.meta.interval
+ aWriter.DoubleProperty("interval", sInstance->mInterval);
+ aWriter.IntProperty("capacity", sInstance->mCapacity.Value());
+ if (sInstance->mDuration) {
+ aWriter.DoubleProperty("duration", sInstance->mDuration.value());
+ }
+ // Here, we are converting uint64_t to double. Tab IDs are
+ // being created using `nsContentUtils::GenerateProcessSpecificId`, which
+ // is specifically designed to only use 53 of the 64 bits to be lossless
+ // when passed into and out of JS as a double.
+ aWriter.DoubleProperty("activeTabID", sInstance->mActiveTabID);
+ }
+ aWriter.EndObject();
+ }
+
+ PS_GET_LOCKLESS(TimeStamp, ProfilingStartTime)
+
+ PS_GET(uint32_t, Generation)
+
+ PS_GET(PowerOfTwo32, Capacity)
+
+ PS_GET(Maybe<double>, Duration)
+
+ PS_GET(double, Interval)
+
+ PS_GET(uint32_t, Features)
+
+ PS_GET(uint64_t, ActiveTabID)
+
+#define PS_GET_FEATURE(n_, str_, Name_, desc_) \
+ static bool Feature##Name_(PSLockRef) { \
+ MOZ_ASSERT(sInstance); \
+ return ProfilerFeature::Has##Name_(sInstance->mFeatures); \
+ }
+
+ PROFILER_FOR_EACH_FEATURE(PS_GET_FEATURE)
+
+#undef PS_GET_FEATURE
+
+ static uint32_t JSFlags(PSLockRef aLock) {
+ uint32_t Flags = 0;
+ Flags |=
+ FeatureJS(aLock) ? uint32_t(JSInstrumentationFlags::StackSampling) : 0;
+
+ Flags |= FeatureJSAllocations(aLock)
+ ? uint32_t(JSInstrumentationFlags::Allocations)
+ : 0;
+ return Flags;
+ }
+
+ PS_GET(const Vector<std::string>&, Filters)
+ PS_GET(const Vector<std::string>&, FiltersLowered)
+
+ // Not using PS_GET, because only the "Controlled" interface of
+ // `mProfileBufferChunkManager` should be exposed here.
+ static ProfileBufferChunkManagerWithLocalLimit& ControlledChunkManager(
+ PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ MOZ_ASSERT(sInstance->mProfileBufferChunkManager);
+ return *sInstance->mProfileBufferChunkManager;
+ }
+
+ static void FulfillChunkRequests(PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ if (sInstance->mProfileBufferChunkManager) {
+ sInstance->mProfileBufferChunkManager->FulfillChunkRequests();
+ }
+ }
+
+ static ProfileBuffer& Buffer(PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ return sInstance->mProfileBuffer;
+ }
+
+ static const Vector<LiveProfiledThreadData>& LiveProfiledThreads(PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ return sInstance->mLiveProfiledThreads;
+ }
+
+ struct ProfiledThreadListElement {
+ TimeStamp mRegisterTime;
+ JSContext* mJSContext; // Null for unregistered threads.
+ ProfiledThreadData* mProfiledThreadData;
+ };
+ using ProfiledThreadList = Vector<ProfiledThreadListElement>;
+
+ // Returns a ProfiledThreadList with all threads that should be included in a
+ // profile, both for threads that are still registered, and for threads that
+ // have been unregistered but still have data in the buffer.
+ // The returned array is sorted by thread register time.
+ // Do not hold on to the return value past LockedRegistry.
+ static ProfiledThreadList ProfiledThreads(
+ ThreadRegistry::LockedRegistry& aLockedRegistry, PSLockRef aLock) {
+ MOZ_ASSERT(sInstance);
+ ProfiledThreadList array;
+ MOZ_RELEASE_ASSERT(
+ array.initCapacity(sInstance->mLiveProfiledThreads.length() +
+ sInstance->mDeadProfiledThreads.length()));
+
+ for (ThreadRegistry::OffThreadRef offThreadRef : aLockedRegistry) {
+ ProfiledThreadData* profiledThreadData =
+ offThreadRef.UnlockedRWForLockedProfilerRef().GetProfiledThreadData(
+ aLock);
+ if (!profiledThreadData) {
+ // This thread was not profiled, continue with the next one.
+ continue;
+ }
+ ThreadRegistry::OffThreadRef::RWFromAnyThreadWithLock lockedThreadData =
+ offThreadRef.GetLockedRWFromAnyThread();
+ MOZ_RELEASE_ASSERT(array.append(ProfiledThreadListElement{
+ profiledThreadData->Info().RegisterTime(),
+ lockedThreadData->GetJSContext(), profiledThreadData}));
+ }
+
+ for (auto& t : sInstance->mDeadProfiledThreads) {
+ MOZ_RELEASE_ASSERT(array.append(ProfiledThreadListElement{
+ t->Info().RegisterTime(), (JSContext*)nullptr, t.get()}));
+ }
+
+ std::sort(array.begin(), array.end(),
+ [](const ProfiledThreadListElement& a,
+ const ProfiledThreadListElement& b) {
+ return a.mRegisterTime < b.mRegisterTime;
+ });
+ return array;
+ }
+
+ static Vector<RefPtr<PageInformation>> ProfiledPages(PSLockRef aLock) {
+ MOZ_ASSERT(sInstance);
+ Vector<RefPtr<PageInformation>> array;
+ for (auto& d : CorePS::RegisteredPages(aLock)) {
+ MOZ_RELEASE_ASSERT(array.append(d));
+ }
+ for (auto& d : sInstance->mDeadProfiledPages) {
+ MOZ_RELEASE_ASSERT(array.append(d));
+ }
+ // We don't need to sort the pages like threads since we won't show them
+ // as a list.
+ return array;
+ }
+
+ static ProfiledThreadData* AddLiveProfiledThread(
+ PSLockRef, UniquePtr<ProfiledThreadData>&& aProfiledThreadData) {
+ MOZ_ASSERT(sInstance);
+ MOZ_RELEASE_ASSERT(sInstance->mLiveProfiledThreads.append(
+ LiveProfiledThreadData{std::move(aProfiledThreadData)}));
+
+ // Return a weak pointer to the ProfiledThreadData object.
+ return sInstance->mLiveProfiledThreads.back().mProfiledThreadData.get();
+ }
+
+ static void UnregisterThread(PSLockRef aLockRef,
+ ProfiledThreadData* aProfiledThreadData) {
+ MOZ_ASSERT(sInstance);
+
+ DiscardExpiredDeadProfiledThreads(aLockRef);
+
+ // Find the right entry in the mLiveProfiledThreads array and remove the
+ // element, moving the ProfiledThreadData object for the thread into the
+ // mDeadProfiledThreads array.
+ for (size_t i = 0; i < sInstance->mLiveProfiledThreads.length(); i++) {
+ LiveProfiledThreadData& thread = sInstance->mLiveProfiledThreads[i];
+ if (thread.mProfiledThreadData == aProfiledThreadData) {
+ thread.mProfiledThreadData->NotifyUnregistered(
+ sInstance->mProfileBuffer.BufferRangeEnd());
+ MOZ_RELEASE_ASSERT(sInstance->mDeadProfiledThreads.append(
+ std::move(thread.mProfiledThreadData)));
+ sInstance->mLiveProfiledThreads.erase(
+ &sInstance->mLiveProfiledThreads[i]);
+ return;
+ }
+ }
+ }
+
+ // This is a counter to collect process CPU utilization during profiling.
+ // It cannot be a raw `ProfilerCounter` because we need to manually add/remove
+ // it while the profiler lock is already held.
+ class ProcessCPUCounter final : public BaseProfilerCount {
+ public:
+ explicit ProcessCPUCounter(PSLockRef aLock)
+ : BaseProfilerCount("processCPU", &mCounter, nullptr, "CPU",
+ "Process CPU utilization") {
+ // Adding on construction, so it's ready before the sampler starts.
+ locked_profiler_add_sampled_counter(aLock, this);
+ // Note: Removed from ActivePS::Destroy, because a lock is needed.
+ }
+
+ void Add(int64_t aNumber) { mCounter += aNumber; }
+
+ private:
+ ProfilerAtomicSigned mCounter;
+ };
+ PS_GET(ProcessCPUCounter*, MaybeProcessCPUCounter);
+
+ PS_GET(PowerCounters*, MaybePowerCounters);
+
+ PS_GET_AND_SET(bool, IsPaused)
+
+ // True if sampling is paused (though generic `SetIsPaused()` or specific
+ // `SetIsSamplingPaused()`).
+ static bool IsSamplingPaused(PSLockRef lock) {
+ MOZ_ASSERT(sInstance);
+ return IsPaused(lock) || sInstance->mIsSamplingPaused;
+ }
+
+ static void SetIsSamplingPaused(PSLockRef, bool aIsSamplingPaused) {
+ MOZ_ASSERT(sInstance);
+ sInstance->mIsSamplingPaused = aIsSamplingPaused;
+ }
+
+ static void DiscardExpiredDeadProfiledThreads(PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ uint64_t bufferRangeStart = sInstance->mProfileBuffer.BufferRangeStart();
+ // Discard any dead threads that were unregistered before bufferRangeStart.
+ sInstance->mDeadProfiledThreads.eraseIf(
+ [bufferRangeStart](
+ const UniquePtr<ProfiledThreadData>& aProfiledThreadData) {
+ Maybe<uint64_t> bufferPosition =
+ aProfiledThreadData->BufferPositionWhenUnregistered();
+ MOZ_RELEASE_ASSERT(bufferPosition,
+ "should have unregistered this thread");
+ return *bufferPosition < bufferRangeStart;
+ });
+ }
+
+ static void UnregisterPage(PSLockRef aLock,
+ uint64_t aRegisteredInnerWindowID) {
+ MOZ_ASSERT(sInstance);
+ auto& registeredPages = CorePS::RegisteredPages(aLock);
+ for (size_t i = 0; i < registeredPages.length(); i++) {
+ RefPtr<PageInformation>& page = registeredPages[i];
+ if (page->InnerWindowID() == aRegisteredInnerWindowID) {
+ page->NotifyUnregistered(sInstance->mProfileBuffer.BufferRangeEnd());
+ MOZ_RELEASE_ASSERT(
+ sInstance->mDeadProfiledPages.append(std::move(page)));
+ registeredPages.erase(&registeredPages[i--]);
+ }
+ }
+ }
+
+ static void DiscardExpiredPages(PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ uint64_t bufferRangeStart = sInstance->mProfileBuffer.BufferRangeStart();
+ // Discard any dead pages that were unregistered before
+ // bufferRangeStart.
+ sInstance->mDeadProfiledPages.eraseIf(
+ [bufferRangeStart](const RefPtr<PageInformation>& aProfiledPage) {
+ Maybe<uint64_t> bufferPosition =
+ aProfiledPage->BufferPositionWhenUnregistered();
+ MOZ_RELEASE_ASSERT(bufferPosition,
+ "should have unregistered this page");
+ return *bufferPosition < bufferRangeStart;
+ });
+ }
+
+ static void ClearUnregisteredPages(PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ sInstance->mDeadProfiledPages.clear();
+ }
+
+ static void ClearExpiredExitProfiles(PSLockRef) {
+ MOZ_ASSERT(sInstance);
+ uint64_t bufferRangeStart = sInstance->mProfileBuffer.BufferRangeStart();
+ // Discard exit profiles that were gathered before our buffer RangeStart.
+ // If we have started to overwrite our data from when the Base profile was
+ // added, we should get rid of that Base profile because it's now older than
+ // our oldest Gecko profile data.
+ //
+ // When adding: (In practice the starting buffer should be empty)
+ // v Start == End
+ // | <-- Buffer range, initially empty.
+ // ^ mGeckoIndexWhenBaseProfileAdded < Start FALSE -> keep it
+ //
+ // Later, still in range:
+ // v Start v End
+ // |=========| <-- Buffer range growing.
+ // ^ mGeckoIndexWhenBaseProfileAdded < Start FALSE -> keep it
+ //
+ // Even later, now out of range:
+ // v Start v End
+ // |============| <-- Buffer range full and sliding.
+ // ^ mGeckoIndexWhenBaseProfileAdded < Start TRUE! -> Discard it
+ if (sInstance->mBaseProfileThreads &&
+ sInstance->mGeckoIndexWhenBaseProfileAdded
+ .ConvertToProfileBufferIndex() <
+ profiler_get_core_buffer().GetState().mRangeStart) {
+ DEBUG_LOG("ClearExpiredExitProfiles() - Discarding base profile %p",
+ sInstance->mBaseProfileThreads.get());
+ sInstance->mBaseProfileThreads.reset();
+ }
+ sInstance->mExitProfiles.eraseIf(
+ [bufferRangeStart](const ExitProfile& aExitProfile) {
+ return aExitProfile.mBufferPositionAtGatherTime < bufferRangeStart;
+ });
+ }
+
+ static void AddBaseProfileThreads(PSLockRef aLock,
+ UniquePtr<char[]> aBaseProfileThreads) {
+ MOZ_ASSERT(sInstance);
+ DEBUG_LOG("AddBaseProfileThreads(%p)", aBaseProfileThreads.get());
+ sInstance->mBaseProfileThreads = std::move(aBaseProfileThreads);
+ sInstance->mGeckoIndexWhenBaseProfileAdded =
+ ProfileBufferBlockIndex::CreateFromProfileBufferIndex(
+ profiler_get_core_buffer().GetState().mRangeEnd);
+ }
+
+ static UniquePtr<char[]> MoveBaseProfileThreads(PSLockRef aLock) {
+ MOZ_ASSERT(sInstance);
+
+ ClearExpiredExitProfiles(aLock);
+
+ DEBUG_LOG("MoveBaseProfileThreads() - Consuming base profile %p",
+ sInstance->mBaseProfileThreads.get());
+ return std::move(sInstance->mBaseProfileThreads);
+ }
+
+ static void AddExitProfile(PSLockRef aLock, const nsACString& aExitProfile) {
+ MOZ_ASSERT(sInstance);
+
+ ClearExpiredExitProfiles(aLock);
+
+ MOZ_RELEASE_ASSERT(sInstance->mExitProfiles.append(ExitProfile{
+ nsCString(aExitProfile), sInstance->mProfileBuffer.BufferRangeEnd()}));
+ }
+
+ static Vector<nsCString> MoveExitProfiles(PSLockRef aLock) {
+ MOZ_ASSERT(sInstance);
+
+ ClearExpiredExitProfiles(aLock);
+
+ Vector<nsCString> profiles;
+ MOZ_RELEASE_ASSERT(
+ profiles.initCapacity(sInstance->mExitProfiles.length()));
+ for (auto& profile : sInstance->mExitProfiles) {
+ MOZ_RELEASE_ASSERT(profiles.append(std::move(profile.mJSON)));
+ }
+ sInstance->mExitProfiles.clear();
+ return profiles;
+ }
+
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ static void SetMemoryCounter(const BaseProfilerCount* aMemoryCounter) {
+ MOZ_ASSERT(sInstance);
+
+ sInstance->mMemoryCounter = aMemoryCounter;
+ }
+
+ static bool IsMemoryCounter(const BaseProfilerCount* aMemoryCounter) {
+ MOZ_ASSERT(sInstance);
+
+ return sInstance->mMemoryCounter == aMemoryCounter;
+ }
+#endif
+
+ private:
+ // The singleton instance.
+ static ActivePS* sInstance;
+
+ const TimeStamp mProfilingStartTime;
+
+ // We need to track activity generations. If we didn't we could have the
+ // following scenario.
+ //
+ // - profiler_stop() locks gPSMutex, de-instantiates ActivePS, unlocks
+ // gPSMutex, deletes the SamplerThread (which does a join).
+ //
+ // - profiler_start() runs on a different thread, locks gPSMutex,
+ // re-instantiates ActivePS, unlocks gPSMutex -- all before the join
+ // completes.
+ //
+ // - SamplerThread::Run() locks gPSMutex, sees that ActivePS is instantiated,
+ // and continues as if the start/stop pair didn't occur. Also
+ // profiler_stop() is stuck, unable to finish.
+ //
+ // By checking ActivePS *and* the generation, we can avoid this scenario.
+ // sNextGeneration is used to track the next generation number; it is static
+ // because it must persist across different ActivePS instantiations.
+ const uint32_t mGeneration;
+ static uint32_t sNextGeneration;
+
+ // The maximum number of entries in mProfileBuffer.
+ const PowerOfTwo32 mCapacity;
+
+ // The maximum duration of entries in mProfileBuffer, in seconds.
+ const Maybe<double> mDuration;
+
+ // The interval between samples, measured in milliseconds.
+ const double mInterval;
+
+ // The profile features that are enabled.
+ const uint32_t mFeatures;
+
+ // Substrings of names of threads we want to profile.
+ Vector<std::string> mFilters;
+ Vector<std::string> mFiltersLowered;
+
+ // ID of the active browser screen's active tab.
+ // It's being used to determine the profiled tab. It's "0" if we failed to
+ // get the ID.
+ const uint64_t mActiveTabID;
+
+ // The chunk manager used by `mProfileBuffer` below.
+ // May become null if it gets transferred ouf of the Gecko Profiler.
+ UniquePtr<ProfileBufferChunkManagerWithLocalLimit> mProfileBufferChunkManager;
+
+ // The buffer into which all samples are recorded.
+ ProfileBuffer mProfileBuffer;
+
+ // ProfiledThreadData objects for any threads that were profiled at any point
+ // during this run of the profiler:
+ // - mLiveProfiledThreads contains all threads that are still registered, and
+ // - mDeadProfiledThreads contains all threads that have already been
+ // unregistered but for which there is still data in the profile buffer.
+ Vector<LiveProfiledThreadData> mLiveProfiledThreads;
+ Vector<UniquePtr<ProfiledThreadData>> mDeadProfiledThreads;
+
+ // Info on all the dead pages.
+ // Registered pages are being moved to this array after unregistration.
+ // We are keeping them in case we need them in the profile data.
+ // We are removing them when we ensure that we won't need them anymore.
+ Vector<RefPtr<PageInformation>> mDeadProfiledPages;
+
+ // Used to collect process CPU utilization values, if the feature is on.
+ ProcessCPUCounter* mMaybeProcessCPUCounter;
+
+ // Used to collect power use data, if the power feature is on.
+ PowerCounters* mMaybePowerCounters;
+
+ // The current sampler thread. This class is not responsible for destroying
+ // the SamplerThread object; the Destroy() method returns it so the caller
+ // can destroy it.
+ SamplerThread* const mSamplerThread;
+
+ // Is the profiler fully paused?
+ bool mIsPaused;
+
+ // Is the profiler periodic sampling paused?
+ bool mIsSamplingPaused;
+
+ // Optional startup profile thread array from BaseProfiler.
+ UniquePtr<char[]> mBaseProfileThreads;
+ ProfileBufferBlockIndex mGeckoIndexWhenBaseProfileAdded;
+
+ struct ExitProfile {
+ nsCString mJSON;
+ uint64_t mBufferPositionAtGatherTime;
+ };
+ Vector<ExitProfile> mExitProfiles;
+
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ Atomic<const BaseProfilerCount*> mMemoryCounter;
+#endif
+};
+
+ActivePS* ActivePS::sInstance = nullptr;
+uint32_t ActivePS::sNextGeneration = 0;
+
+#undef PS_GET
+#undef PS_GET_LOCKLESS
+#undef PS_GET_AND_SET
+
+using ProfilerStateChangeMutex =
+ mozilla::baseprofiler::detail::BaseProfilerMutex;
+using ProfilerStateChangeLock =
+ mozilla::baseprofiler::detail::BaseProfilerAutoLock;
+static ProfilerStateChangeMutex gProfilerStateChangeMutex;
+
+struct IdentifiedProfilingStateChangeCallback {
+ ProfilingStateSet mProfilingStateSet;
+ ProfilingStateChangeCallback mProfilingStateChangeCallback;
+ uintptr_t mUniqueIdentifier;
+
+ explicit IdentifiedProfilingStateChangeCallback(
+ ProfilingStateSet aProfilingStateSet,
+ ProfilingStateChangeCallback&& aProfilingStateChangeCallback,
+ uintptr_t aUniqueIdentifier)
+ : mProfilingStateSet(aProfilingStateSet),
+ mProfilingStateChangeCallback(aProfilingStateChangeCallback),
+ mUniqueIdentifier(aUniqueIdentifier) {}
+};
+using IdentifiedProfilingStateChangeCallbackUPtr =
+ UniquePtr<IdentifiedProfilingStateChangeCallback>;
+
+static Vector<IdentifiedProfilingStateChangeCallbackUPtr>
+ mIdentifiedProfilingStateChangeCallbacks;
+
+void profiler_add_state_change_callback(
+ ProfilingStateSet aProfilingStateSet,
+ ProfilingStateChangeCallback&& aCallback,
+ uintptr_t aUniqueIdentifier /* = 0 */) {
+ MOZ_ASSERT(!PSAutoLock::IsLockedOnCurrentThread());
+ ProfilerStateChangeLock lock(gProfilerStateChangeMutex);
+
+#ifdef DEBUG
+ // Check if a non-zero id is not already used. Bug forgive it in non-DEBUG
+ // builds; in the worst case they may get removed too early.
+ if (aUniqueIdentifier != 0) {
+ for (const IdentifiedProfilingStateChangeCallbackUPtr& idedCallback :
+ mIdentifiedProfilingStateChangeCallbacks) {
+ MOZ_ASSERT(idedCallback->mUniqueIdentifier != aUniqueIdentifier);
+ }
+ }
+#endif // DEBUG
+
+ if (aProfilingStateSet.contains(ProfilingState::AlreadyActive) &&
+ profiler_is_active()) {
+ aCallback(ProfilingState::AlreadyActive);
+ }
+
+ (void)mIdentifiedProfilingStateChangeCallbacks.append(
+ MakeUnique<IdentifiedProfilingStateChangeCallback>(
+ aProfilingStateSet, std::move(aCallback), aUniqueIdentifier));
+}
+
+// Remove the callback with the given identifier.
+void profiler_remove_state_change_callback(uintptr_t aUniqueIdentifier) {
+ MOZ_ASSERT(aUniqueIdentifier != 0);
+ if (aUniqueIdentifier == 0) {
+ // Forgive zero in non-DEBUG builds.
+ return;
+ }
+
+ MOZ_ASSERT(!PSAutoLock::IsLockedOnCurrentThread());
+ ProfilerStateChangeLock lock(gProfilerStateChangeMutex);
+
+ mIdentifiedProfilingStateChangeCallbacks.eraseIf(
+ [aUniqueIdentifier](
+ const IdentifiedProfilingStateChangeCallbackUPtr& aIdedCallback) {
+ if (aIdedCallback->mUniqueIdentifier != aUniqueIdentifier) {
+ return false;
+ }
+ if (aIdedCallback->mProfilingStateSet.contains(
+ ProfilingState::RemovingCallback)) {
+ aIdedCallback->mProfilingStateChangeCallback(
+ ProfilingState::RemovingCallback);
+ }
+ return true;
+ });
+}
+
+static void invoke_profiler_state_change_callbacks(
+ ProfilingState aProfilingState) {
+ MOZ_ASSERT(!PSAutoLock::IsLockedOnCurrentThread());
+ ProfilerStateChangeLock lock(gProfilerStateChangeMutex);
+
+ for (const IdentifiedProfilingStateChangeCallbackUPtr& idedCallback :
+ mIdentifiedProfilingStateChangeCallbacks) {
+ if (idedCallback->mProfilingStateSet.contains(aProfilingState)) {
+ idedCallback->mProfilingStateChangeCallback(aProfilingState);
+ }
+ }
+}
+
+Atomic<uint32_t, MemoryOrdering::Relaxed> RacyFeatures::sActiveAndFeatures(0);
+
+// The name of the main thread.
+static const char* const kMainThreadName = "GeckoMain";
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN sampling/unwinding code
+
+// The registers used for stack unwinding and a few other sampling purposes.
+// The ctor does nothing; users are responsible for filling in the fields.
+class Registers {
+ public:
+ Registers() : mPC{nullptr}, mSP{nullptr}, mFP{nullptr}, mLR{nullptr} {}
+
+ void Clear() { memset(this, 0, sizeof(*this)); }
+
+ // These fields are filled in by
+ // Sampler::SuspendAndSampleAndResumeThread() for periodic and backtrace
+ // samples, and by REGISTERS_SYNC_POPULATE for synchronous samples.
+ Address mPC; // Instruction pointer.
+ Address mSP; // Stack pointer.
+ Address mFP; // Frame pointer.
+ Address mLR; // ARM link register.
+#if defined(GP_OS_linux) || defined(GP_OS_android) || defined(GP_OS_freebsd)
+ // This contains all the registers, which means it duplicates the four fields
+ // above. This is ok.
+ ucontext_t* mContext; // The context from the signal handler or below.
+ ucontext_t mContextSyncStorage; // Storage for sync stack unwinding.
+#endif
+};
+
+// Setting MAX_NATIVE_FRAMES too high risks the unwinder wasting a lot of time
+// looping on corrupted stacks.
+static const size_t MAX_NATIVE_FRAMES = 1024;
+
+struct NativeStack {
+ void* mPCs[MAX_NATIVE_FRAMES];
+ void* mSPs[MAX_NATIVE_FRAMES];
+ size_t mCount; // Number of frames filled.
+
+ NativeStack() : mPCs(), mSPs(), mCount(0) {}
+};
+
+Atomic<bool> WALKING_JS_STACK(false);
+
+struct AutoWalkJSStack {
+ bool walkAllowed;
+
+ AutoWalkJSStack() : walkAllowed(false) {
+ walkAllowed = WALKING_JS_STACK.compareExchange(false, true);
+ }
+
+ ~AutoWalkJSStack() {
+ if (walkAllowed) {
+ WALKING_JS_STACK = false;
+ }
+ }
+};
+
+class StackWalkControl {
+ public:
+ struct ResumePoint {
+ // If lost, the stack walker should resume at these values.
+ void* resumeSp; // If null, stop the walker here, don't resume again.
+ void* resumeBp;
+ void* resumePc;
+ };
+
+#if ((defined(USE_MOZ_STACK_WALK) || defined(USE_FRAME_POINTER_STACK_WALK)) && \
+ defined(GP_ARCH_amd64))
+ public:
+ static constexpr bool scIsSupported = true;
+
+ void Clear() { mResumePointCount = 0; }
+
+ size_t ResumePointCount() const { return mResumePointCount; }
+
+ static constexpr size_t MaxResumePointCount() {
+ return scMaxResumePointCount;
+ }
+
+ // Add a resume point. Note that adding anything past MaxResumePointCount()
+ // would silently fail. In practice this means that stack walking may still
+ // lose native frames.
+ void AddResumePoint(ResumePoint&& aResumePoint) {
+ // If SP is null, we expect BP and PC to also be null.
+ MOZ_ASSERT_IF(!aResumePoint.resumeSp, !aResumePoint.resumeBp);
+ MOZ_ASSERT_IF(!aResumePoint.resumeSp, !aResumePoint.resumePc);
+
+ // If BP and/or PC are not null, SP must not be null. (But we allow BP/PC to
+ // be null even if SP is not null.)
+ MOZ_ASSERT_IF(aResumePoint.resumeBp, aResumePoint.resumeSp);
+ MOZ_ASSERT_IF(aResumePoint.resumePc, aResumePoint.resumeSp);
+
+ if (mResumePointCount < scMaxResumePointCount) {
+ mResumePoint[mResumePointCount] = std::move(aResumePoint);
+ ++mResumePointCount;
+ }
+ }
+
+ // Only allow non-modifying range-for loops.
+ const ResumePoint* begin() const { return &mResumePoint[0]; }
+ const ResumePoint* end() const { return &mResumePoint[mResumePointCount]; }
+
+ // Find the next resume point that would be a caller of the function with the
+ // given SP; i.e., the resume point with the closest resumeSp > aSp.
+ const ResumePoint* GetResumePointCallingSp(void* aSp) const {
+ const ResumePoint* callingResumePoint = nullptr;
+ for (const ResumePoint& resumePoint : *this) {
+ if (resumePoint.resumeSp && // This is a potential resume point.
+ resumePoint.resumeSp > aSp && // It is a caller of the given SP.
+ (!callingResumePoint || // This is the first candidate.
+ resumePoint.resumeSp < callingResumePoint->resumeSp) // Or better.
+ ) {
+ callingResumePoint = &resumePoint;
+ }
+ }
+ return callingResumePoint;
+ }
+
+ private:
+ size_t mResumePointCount = 0;
+ static constexpr size_t scMaxResumePointCount = 32;
+ ResumePoint mResumePoint[scMaxResumePointCount];
+
+#else
+ public:
+ static constexpr bool scIsSupported = false;
+ // Discarded constexpr-if statements are still checked during compilation,
+ // these declarations are necessary for that, even if not actually used.
+ void Clear();
+ size_t ResumePointCount();
+ static constexpr size_t MaxResumePointCount();
+ void AddResumePoint(ResumePoint&& aResumePoint);
+ const ResumePoint* begin() const;
+ const ResumePoint* end() const;
+ const ResumePoint* GetResumePointCallingSp(void* aSp) const;
+#endif
+};
+
+// Make a copy of the JS stack into a JSFrame array, and return the number of
+// copied frames.
+// This copy is necessary since, like the native stack, the JS stack is iterated
+// youngest-to-oldest and we need to iterate oldest-to-youngest in MergeStacks.
+static uint32_t ExtractJsFrames(
+ bool aIsSynchronous,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const Registers& aRegs, ProfilerStackCollector& aCollector,
+ JsFrameBuffer aJsFrames, StackWalkControl* aStackWalkControlIfSupported) {
+ MOZ_ASSERT(aJsFrames,
+ "ExtractJsFrames should only be called if there is a "
+ "JsFrameBuffer to fill.");
+
+ uint32_t jsFramesCount = 0;
+
+ // Only walk jit stack if profiling frame iterator is turned on.
+ JSContext* context = aThreadData.GetJSContext();
+ if (context && JS::IsProfilingEnabledForContext(context)) {
+ AutoWalkJSStack autoWalkJSStack;
+
+ if (autoWalkJSStack.walkAllowed) {
+ JS::ProfilingFrameIterator::RegisterState registerState;
+ registerState.pc = aRegs.mPC;
+ registerState.sp = aRegs.mSP;
+ registerState.lr = aRegs.mLR;
+ registerState.fp = aRegs.mFP;
+
+ // Non-periodic sampling passes Nothing() as the buffer write position to
+ // ProfilingFrameIterator to avoid incorrectly resetting the buffer
+ // position of sampled JIT frames inside the JS engine.
+ Maybe<uint64_t> samplePosInBuffer;
+ if (!aIsSynchronous) {
+ // aCollector.SamplePositionInBuffer() will return Nothing() when
+ // profiler_suspend_and_sample_thread is called from the background hang
+ // reporter.
+ samplePosInBuffer = aCollector.SamplePositionInBuffer();
+ }
+
+ for (JS::ProfilingFrameIterator jsIter(context, registerState,
+ samplePosInBuffer);
+ !jsIter.done(); ++jsIter) {
+ if (aIsSynchronous || jsIter.isWasm()) {
+ jsFramesCount +=
+ jsIter.extractStack(aJsFrames, jsFramesCount, MAX_JS_FRAMES);
+ if (jsFramesCount == MAX_JS_FRAMES) {
+ break;
+ }
+ } else {
+ Maybe<JS::ProfilingFrameIterator::Frame> frame =
+ jsIter.getPhysicalFrameWithoutLabel();
+ if (frame.isSome()) {
+ aJsFrames[jsFramesCount++] = std::move(frame).ref();
+ if (jsFramesCount == MAX_JS_FRAMES) {
+ break;
+ }
+ }
+ }
+
+ if constexpr (StackWalkControl::scIsSupported) {
+ if (aStackWalkControlIfSupported) {
+ jsIter.getCppEntryRegisters().apply(
+ [&](const JS::ProfilingFrameIterator::RegisterState&
+ aCppEntry) {
+ StackWalkControl::ResumePoint resumePoint;
+ resumePoint.resumeSp = aCppEntry.sp;
+ resumePoint.resumeBp = aCppEntry.fp;
+ resumePoint.resumePc = aCppEntry.pc;
+ aStackWalkControlIfSupported->AddResumePoint(
+ std::move(resumePoint));
+ });
+ }
+ } else {
+ MOZ_ASSERT(!aStackWalkControlIfSupported,
+ "aStackWalkControlIfSupported should be null when "
+ "!StackWalkControl::scIsSupported");
+ (void)aStackWalkControlIfSupported;
+ }
+ }
+ }
+ }
+
+ return jsFramesCount;
+}
+
+// Merges the profiling stack, native stack, and JS stack, outputting the
+// details to aCollector.
+static void MergeStacks(
+ uint32_t aFeatures, bool aIsSynchronous,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const Registers& aRegs, const NativeStack& aNativeStack,
+ ProfilerStackCollector& aCollector, JsFrame* aJsFrames,
+ uint32_t aJsFramesCount) {
+ // WARNING: this function runs within the profiler's "critical section".
+ // WARNING: this function might be called while the profiler is inactive, and
+ // cannot rely on ActivePS.
+
+ MOZ_ASSERT_IF(!aJsFrames, aJsFramesCount == 0);
+
+ const ProfilingStack& profilingStack = aThreadData.ProfilingStackCRef();
+ const js::ProfilingStackFrame* profilingStackFrames = profilingStack.frames;
+ uint32_t profilingStackFrameCount = profilingStack.stackSize();
+
+ // While the profiling stack array is ordered oldest-to-youngest, the JS and
+ // native arrays are ordered youngest-to-oldest. We must add frames to aInfo
+ // oldest-to-youngest. Thus, iterate over the profiling stack forwards and JS
+ // and native arrays backwards. Note: this means the terminating condition
+ // jsIndex and nativeIndex is being < 0.
+ uint32_t profilingStackIndex = 0;
+ int32_t jsIndex = aJsFramesCount - 1;
+ int32_t nativeIndex = aNativeStack.mCount - 1;
+
+ uint8_t* lastLabelFrameStackAddr = nullptr;
+ uint8_t* jitEndStackAddr = nullptr;
+
+ // Iterate as long as there is at least one frame remaining.
+ while (profilingStackIndex != profilingStackFrameCount || jsIndex >= 0 ||
+ nativeIndex >= 0) {
+ // There are 1 to 3 frames available. Find and add the oldest.
+ uint8_t* profilingStackAddr = nullptr;
+ uint8_t* jsStackAddr = nullptr;
+ uint8_t* nativeStackAddr = nullptr;
+ uint8_t* jsActivationAddr = nullptr;
+
+ if (profilingStackIndex != profilingStackFrameCount) {
+ const js::ProfilingStackFrame& profilingStackFrame =
+ profilingStackFrames[profilingStackIndex];
+
+ if (profilingStackFrame.isLabelFrame() ||
+ profilingStackFrame.isSpMarkerFrame()) {
+ lastLabelFrameStackAddr = (uint8_t*)profilingStackFrame.stackAddress();
+ }
+
+ // Skip any JS_OSR frames. Such frames are used when the JS interpreter
+ // enters a jit frame on a loop edge (via on-stack-replacement, or OSR).
+ // To avoid both the profiling stack frame and jit frame being recorded
+ // (and showing up twice), the interpreter marks the interpreter
+ // profiling stack frame as JS_OSR to ensure that it doesn't get counted.
+ if (profilingStackFrame.isOSRFrame()) {
+ profilingStackIndex++;
+ continue;
+ }
+
+ MOZ_ASSERT(lastLabelFrameStackAddr);
+ profilingStackAddr = lastLabelFrameStackAddr;
+ }
+
+ if (jsIndex >= 0) {
+ jsStackAddr = (uint8_t*)aJsFrames[jsIndex].stackAddress;
+ jsActivationAddr = (uint8_t*)aJsFrames[jsIndex].activation;
+ }
+
+ if (nativeIndex >= 0) {
+ nativeStackAddr = (uint8_t*)aNativeStack.mSPs[nativeIndex];
+ }
+
+ // If there's a native stack frame which has the same SP as a profiling
+ // stack frame, pretend we didn't see the native stack frame. Ditto for a
+ // native stack frame which has the same SP as a JS stack frame. In effect
+ // this means profiling stack frames or JS frames trump conflicting native
+ // frames.
+ if (nativeStackAddr && (profilingStackAddr == nativeStackAddr ||
+ jsStackAddr == nativeStackAddr)) {
+ nativeStackAddr = nullptr;
+ nativeIndex--;
+ MOZ_ASSERT(profilingStackAddr || jsStackAddr);
+ }
+
+ // Sanity checks.
+ MOZ_ASSERT_IF(profilingStackAddr,
+ profilingStackAddr != jsStackAddr &&
+ profilingStackAddr != nativeStackAddr);
+ MOZ_ASSERT_IF(jsStackAddr, jsStackAddr != profilingStackAddr &&
+ jsStackAddr != nativeStackAddr);
+ MOZ_ASSERT_IF(nativeStackAddr, nativeStackAddr != profilingStackAddr &&
+ nativeStackAddr != jsStackAddr);
+
+ // Check to see if profiling stack frame is top-most.
+ if (profilingStackAddr > jsStackAddr &&
+ profilingStackAddr > nativeStackAddr) {
+ MOZ_ASSERT(profilingStackIndex < profilingStackFrameCount);
+ const js::ProfilingStackFrame& profilingStackFrame =
+ profilingStackFrames[profilingStackIndex];
+
+ // Sp marker frames are just annotations and should not be recorded in
+ // the profile.
+ if (!profilingStackFrame.isSpMarkerFrame()) {
+ // The JIT only allows the top-most frame to have a nullptr pc.
+ MOZ_ASSERT_IF(
+ profilingStackFrame.isJsFrame() && profilingStackFrame.script() &&
+ !profilingStackFrame.pc(),
+ &profilingStackFrame ==
+ &profilingStack.frames[profilingStack.stackSize() - 1]);
+ if (aIsSynchronous && profilingStackFrame.categoryPair() ==
+ JS::ProfilingCategoryPair::PROFILER) {
+ // For stacks captured synchronously (ie. marker stacks), stop
+ // walking the stack as soon as we enter the profiler category,
+ // to avoid showing profiler internal code in marker stacks.
+ return;
+ }
+ aCollector.CollectProfilingStackFrame(profilingStackFrame);
+ }
+ profilingStackIndex++;
+ continue;
+ }
+
+ // Check to see if JS jit stack frame is top-most
+ if (jsStackAddr > nativeStackAddr) {
+ MOZ_ASSERT(jsIndex >= 0);
+ const JS::ProfilingFrameIterator::Frame& jsFrame = aJsFrames[jsIndex];
+ jitEndStackAddr = (uint8_t*)jsFrame.endStackAddress;
+ // Stringifying non-wasm JIT frames is delayed until streaming time. To
+ // re-lookup the entry in the JitcodeGlobalTable, we need to store the
+ // JIT code address (OptInfoAddr) in the circular buffer.
+ //
+ // Note that we cannot do this when we are sychronously sampling the
+ // current thread; that is, when called from profiler_get_backtrace. The
+ // captured backtrace is usually externally stored for an indeterminate
+ // amount of time, such as in nsRefreshDriver. Problematically, the
+ // stored backtrace may be alive across a GC during which the profiler
+ // itself is disabled. In that case, the JS engine is free to discard its
+ // JIT code. This means that if we inserted such OptInfoAddr entries into
+ // the buffer, nsRefreshDriver would now be holding on to a backtrace
+ // with stale JIT code return addresses.
+ if (aIsSynchronous ||
+ jsFrame.kind == JS::ProfilingFrameIterator::Frame_Wasm) {
+ aCollector.CollectWasmFrame(jsFrame.label);
+ } else if (jsFrame.kind ==
+ JS::ProfilingFrameIterator::Frame_BaselineInterpreter) {
+ // Materialize a ProfilingStackFrame similar to the C++ Interpreter. We
+ // also set the IS_BLINTERP_FRAME flag to differentiate though.
+ JSScript* script = jsFrame.interpreterScript;
+ jsbytecode* pc = jsFrame.interpreterPC();
+ js::ProfilingStackFrame stackFrame;
+ constexpr uint32_t ExtraFlags =
+ uint32_t(js::ProfilingStackFrame::Flags::IS_BLINTERP_FRAME);
+ stackFrame.initJsFrame<JS::ProfilingCategoryPair::JS_BaselineInterpret,
+ ExtraFlags>("", jsFrame.label, script, pc,
+ jsFrame.realmID);
+ aCollector.CollectProfilingStackFrame(stackFrame);
+ } else {
+ MOZ_ASSERT(jsFrame.kind == JS::ProfilingFrameIterator::Frame_Ion ||
+ jsFrame.kind == JS::ProfilingFrameIterator::Frame_Baseline);
+ aCollector.CollectJitReturnAddr(jsFrame.returnAddress());
+ }
+
+ jsIndex--;
+ continue;
+ }
+
+ // If we reach here, there must be a native stack frame and it must be the
+ // greatest frame.
+ if (nativeStackAddr &&
+ // If the latest JS frame was JIT, this could be the native frame that
+ // corresponds to it. In that case, skip the native frame, because
+ // there's no need for the same frame to be present twice in the stack.
+ // The JS frame can be considered the symbolicated version of the native
+ // frame.
+ (!jitEndStackAddr || nativeStackAddr < jitEndStackAddr) &&
+ // This might still be a JIT operation, check to make sure that is not
+ // in range of the NEXT JavaScript's stacks' activation address.
+ (!jsActivationAddr || nativeStackAddr > jsActivationAddr)) {
+ MOZ_ASSERT(nativeIndex >= 0);
+ void* addr = (void*)aNativeStack.mPCs[nativeIndex];
+ aCollector.CollectNativeLeafAddr(addr);
+ }
+ if (nativeIndex >= 0) {
+ nativeIndex--;
+ }
+ }
+
+ // Update the JS context with the current profile sample buffer generation.
+ //
+ // Only do this for periodic samples. We don't want to do this for
+ // synchronous samples, and we also don't want to do it for calls to
+ // profiler_suspend_and_sample_thread() from the background hang reporter -
+ // in that case, aCollector.BufferRangeStart() will return Nothing().
+ if (!aIsSynchronous) {
+ aCollector.BufferRangeStart().apply(
+ [&aThreadData](uint64_t aBufferRangeStart) {
+ JSContext* context = aThreadData.GetJSContext();
+ if (context) {
+ JS::SetJSContextProfilerSampleBufferRangeStart(context,
+ aBufferRangeStart);
+ }
+ });
+ }
+}
+
+#if defined(USE_FRAME_POINTER_STACK_WALK) || defined(USE_MOZ_STACK_WALK)
+static void StackWalkCallback(uint32_t aFrameNumber, void* aPC, void* aSP,
+ void* aClosure) {
+ NativeStack* nativeStack = static_cast<NativeStack*>(aClosure);
+ MOZ_ASSERT(nativeStack->mCount < MAX_NATIVE_FRAMES);
+ nativeStack->mSPs[nativeStack->mCount] = aSP;
+ nativeStack->mPCs[nativeStack->mCount] = aPC;
+ nativeStack->mCount++;
+}
+#endif
+
+#if defined(USE_FRAME_POINTER_STACK_WALK)
+static void DoFramePointerBacktrace(
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const Registers& aRegs, NativeStack& aNativeStack,
+ StackWalkControl* aStackWalkControlIfSupported) {
+ // WARNING: this function runs within the profiler's "critical section".
+ // WARNING: this function might be called while the profiler is inactive, and
+ // cannot rely on ActivePS.
+
+ // Make a local copy of the Registers, to allow modifications.
+ Registers regs = aRegs;
+
+ // Start with the current function. We use 0 as the frame number here because
+ // the FramePointerStackWalk() call below will use 1..N. This is a bit weird
+ // but it doesn't matter because StackWalkCallback() doesn't use the frame
+ // number argument.
+ StackWalkCallback(/* frameNum */ 0, regs.mPC, regs.mSP, &aNativeStack);
+
+ const void* const stackEnd = aThreadData.StackTop();
+
+ // This is to check forward-progress after using a resume point.
+ void* previousResumeSp = nullptr;
+
+ for (;;) {
+ if (!(regs.mSP && regs.mSP <= regs.mFP && regs.mFP <= stackEnd)) {
+ break;
+ }
+ FramePointerStackWalk(StackWalkCallback,
+ uint32_t(MAX_NATIVE_FRAMES - aNativeStack.mCount),
+ &aNativeStack, reinterpret_cast<void**>(regs.mFP),
+ const_cast<void*>(stackEnd));
+
+ if constexpr (!StackWalkControl::scIsSupported) {
+ break;
+ } else {
+ if (aNativeStack.mCount >= MAX_NATIVE_FRAMES) {
+ // No room to add more frames.
+ break;
+ }
+ if (!aStackWalkControlIfSupported ||
+ aStackWalkControlIfSupported->ResumePointCount() == 0) {
+ // No resume information.
+ break;
+ }
+ void* lastSP = aNativeStack.mSPs[aNativeStack.mCount - 1];
+ if (previousResumeSp &&
+ ((uintptr_t)lastSP <= (uintptr_t)previousResumeSp)) {
+ // No progress after the previous resume point.
+ break;
+ }
+ const StackWalkControl::ResumePoint* resumePoint =
+ aStackWalkControlIfSupported->GetResumePointCallingSp(lastSP);
+ if (!resumePoint) {
+ break;
+ }
+ void* sp = resumePoint->resumeSp;
+ if (!sp) {
+ // Null SP in a resume point means we stop here.
+ break;
+ }
+ void* pc = resumePoint->resumePc;
+ StackWalkCallback(/* frameNum */ aNativeStack.mCount, pc, sp,
+ &aNativeStack);
+ ++aNativeStack.mCount;
+ if (aNativeStack.mCount >= MAX_NATIVE_FRAMES) {
+ break;
+ }
+ // Prepare context to resume stack walking.
+ regs.mPC = (Address)pc;
+ regs.mSP = (Address)sp;
+ regs.mFP = (Address)resumePoint->resumeBp;
+
+ previousResumeSp = sp;
+ }
+ }
+}
+#endif
+
+#if defined(USE_MOZ_STACK_WALK)
+static void DoMozStackWalkBacktrace(
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const Registers& aRegs, NativeStack& aNativeStack,
+ StackWalkControl* aStackWalkControlIfSupported) {
+ // WARNING: this function runs within the profiler's "critical section".
+ // WARNING: this function might be called while the profiler is inactive, and
+ // cannot rely on ActivePS.
+
+ // Start with the current function. We use 0 as the frame number here because
+ // the MozStackWalkThread() call below will use 1..N. This is a bit weird but
+ // it doesn't matter because StackWalkCallback() doesn't use the frame number
+ // argument.
+ StackWalkCallback(/* frameNum */ 0, aRegs.mPC, aRegs.mSP, &aNativeStack);
+
+ HANDLE thread = aThreadData.PlatformDataCRef().ProfiledThread();
+ MOZ_ASSERT(thread);
+
+ CONTEXT context_buf;
+ CONTEXT* context = nullptr;
+ if constexpr (StackWalkControl::scIsSupported) {
+ context = &context_buf;
+ memset(&context_buf, 0, sizeof(CONTEXT));
+ context_buf.ContextFlags = CONTEXT_FULL;
+# if defined(_M_AMD64)
+ context_buf.Rsp = (DWORD64)aRegs.mSP;
+ context_buf.Rbp = (DWORD64)aRegs.mFP;
+ context_buf.Rip = (DWORD64)aRegs.mPC;
+# else
+ static_assert(!StackWalkControl::scIsSupported,
+ "Mismatched support between StackWalkControl and "
+ "DoMozStackWalkBacktrace");
+# endif
+ } else {
+ context = nullptr;
+ }
+
+ // This is to check forward-progress after using a resume point.
+ void* previousResumeSp = nullptr;
+
+ for (;;) {
+ MozStackWalkThread(StackWalkCallback,
+ uint32_t(MAX_NATIVE_FRAMES - aNativeStack.mCount),
+ &aNativeStack, thread, context);
+
+ if constexpr (!StackWalkControl::scIsSupported) {
+ break;
+ } else {
+ if (aNativeStack.mCount >= MAX_NATIVE_FRAMES) {
+ // No room to add more frames.
+ break;
+ }
+ if (!aStackWalkControlIfSupported ||
+ aStackWalkControlIfSupported->ResumePointCount() == 0) {
+ // No resume information.
+ break;
+ }
+ void* lastSP = aNativeStack.mSPs[aNativeStack.mCount - 1];
+ if (previousResumeSp &&
+ ((uintptr_t)lastSP <= (uintptr_t)previousResumeSp)) {
+ // No progress after the previous resume point.
+ break;
+ }
+ const StackWalkControl::ResumePoint* resumePoint =
+ aStackWalkControlIfSupported->GetResumePointCallingSp(lastSP);
+ if (!resumePoint) {
+ break;
+ }
+ void* sp = resumePoint->resumeSp;
+ if (!sp) {
+ // Null SP in a resume point means we stop here.
+ break;
+ }
+ void* pc = resumePoint->resumePc;
+ StackWalkCallback(/* frameNum */ aNativeStack.mCount, pc, sp,
+ &aNativeStack);
+ ++aNativeStack.mCount;
+ if (aNativeStack.mCount >= MAX_NATIVE_FRAMES) {
+ break;
+ }
+ // Prepare context to resume stack walking.
+ memset(&context_buf, 0, sizeof(CONTEXT));
+ context_buf.ContextFlags = CONTEXT_FULL;
+# if defined(_M_AMD64)
+ context_buf.Rsp = (DWORD64)sp;
+ context_buf.Rbp = (DWORD64)resumePoint->resumeBp;
+ context_buf.Rip = (DWORD64)pc;
+# else
+ static_assert(!StackWalkControl::scIsSupported,
+ "Mismatched support between StackWalkControl and "
+ "DoMozStackWalkBacktrace");
+# endif
+ previousResumeSp = sp;
+ }
+ }
+}
+#endif
+
+#ifdef USE_EHABI_STACKWALK
+static void DoEHABIBacktrace(
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const Registers& aRegs, NativeStack& aNativeStack,
+ StackWalkControl* aStackWalkControlIfSupported) {
+ // WARNING: this function runs within the profiler's "critical section".
+ // WARNING: this function might be called while the profiler is inactive, and
+ // cannot rely on ActivePS.
+
+ aNativeStack.mCount = EHABIStackWalk(
+ aRegs.mContext->uc_mcontext, const_cast<void*>(aThreadData.StackTop()),
+ aNativeStack.mSPs, aNativeStack.mPCs, MAX_NATIVE_FRAMES);
+ (void)aStackWalkControlIfSupported; // TODO: Implement.
+}
+#endif
+
+#ifdef USE_LUL_STACKWALK
+
+// See the comment at the callsite for why this function is necessary.
+# if defined(MOZ_HAVE_ASAN_IGNORE)
+MOZ_ASAN_IGNORE static void ASAN_memcpy(void* aDst, const void* aSrc,
+ size_t aLen) {
+ // The obvious thing to do here is call memcpy(). However, although
+ // ASAN_memcpy() is not instrumented by ASAN, memcpy() still is, and the
+ // false positive still manifests! So we must implement memcpy() ourselves
+ // within this function.
+ char* dst = static_cast<char*>(aDst);
+ const char* src = static_cast<const char*>(aSrc);
+
+ for (size_t i = 0; i < aLen; i++) {
+ dst[i] = src[i];
+ }
+}
+# endif
+
+static void DoLULBacktrace(
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const Registers& aRegs, NativeStack& aNativeStack,
+ StackWalkControl* aStackWalkControlIfSupported) {
+ // WARNING: this function runs within the profiler's "critical section".
+ // WARNING: this function might be called while the profiler is inactive, and
+ // cannot rely on ActivePS.
+
+ (void)aStackWalkControlIfSupported; // TODO: Implement.
+
+ const mcontext_t* mc = &aRegs.mContext->uc_mcontext;
+
+ lul::UnwindRegs startRegs;
+ memset(&startRegs, 0, sizeof(startRegs));
+
+# if defined(GP_PLAT_amd64_linux) || defined(GP_PLAT_amd64_android)
+ startRegs.xip = lul::TaggedUWord(mc->gregs[REG_RIP]);
+ startRegs.xsp = lul::TaggedUWord(mc->gregs[REG_RSP]);
+ startRegs.xbp = lul::TaggedUWord(mc->gregs[REG_RBP]);
+# elif defined(GP_PLAT_amd64_freebsd)
+ startRegs.xip = lul::TaggedUWord(mc->mc_rip);
+ startRegs.xsp = lul::TaggedUWord(mc->mc_rsp);
+ startRegs.xbp = lul::TaggedUWord(mc->mc_rbp);
+# elif defined(GP_PLAT_arm_linux) || defined(GP_PLAT_arm_android)
+ startRegs.r15 = lul::TaggedUWord(mc->arm_pc);
+ startRegs.r14 = lul::TaggedUWord(mc->arm_lr);
+ startRegs.r13 = lul::TaggedUWord(mc->arm_sp);
+ startRegs.r12 = lul::TaggedUWord(mc->arm_ip);
+ startRegs.r11 = lul::TaggedUWord(mc->arm_fp);
+ startRegs.r7 = lul::TaggedUWord(mc->arm_r7);
+# elif defined(GP_PLAT_arm64_linux) || defined(GP_PLAT_arm64_android)
+ startRegs.pc = lul::TaggedUWord(mc->pc);
+ startRegs.x29 = lul::TaggedUWord(mc->regs[29]);
+ startRegs.x30 = lul::TaggedUWord(mc->regs[30]);
+ startRegs.sp = lul::TaggedUWord(mc->sp);
+# elif defined(GP_PLAT_arm64_freebsd)
+ startRegs.pc = lul::TaggedUWord(mc->mc_gpregs.gp_elr);
+ startRegs.x29 = lul::TaggedUWord(mc->mc_gpregs.gp_x[29]);
+ startRegs.x30 = lul::TaggedUWord(mc->mc_gpregs.gp_lr);
+ startRegs.sp = lul::TaggedUWord(mc->mc_gpregs.gp_sp);
+# elif defined(GP_PLAT_x86_linux) || defined(GP_PLAT_x86_android)
+ startRegs.xip = lul::TaggedUWord(mc->gregs[REG_EIP]);
+ startRegs.xsp = lul::TaggedUWord(mc->gregs[REG_ESP]);
+ startRegs.xbp = lul::TaggedUWord(mc->gregs[REG_EBP]);
+# elif defined(GP_PLAT_mips64_linux)
+ startRegs.pc = lul::TaggedUWord(mc->pc);
+ startRegs.sp = lul::TaggedUWord(mc->gregs[29]);
+ startRegs.fp = lul::TaggedUWord(mc->gregs[30]);
+# else
+# error "Unknown plat"
+# endif
+
+ // Copy up to N_STACK_BYTES from rsp-REDZONE upwards, but not going past the
+ // stack's registered top point. Do some basic validity checks too. This
+ // assumes that the TaggedUWord holding the stack pointer value is valid, but
+ // it should be, since it was constructed that way in the code just above.
+
+ // We could construct |stackImg| so that LUL reads directly from the stack in
+ // question, rather than from a copy of it. That would reduce overhead and
+ // space use a bit. However, it gives a problem with dynamic analysis tools
+ // (ASan, TSan, Valgrind) which is that such tools will report invalid or
+ // racing memory accesses, and such accesses will be reported deep inside LUL.
+ // By taking a copy here, we can either sanitise the copy (for Valgrind) or
+ // copy it using an unchecked memcpy (for ASan, TSan). That way we don't have
+ // to try and suppress errors inside LUL.
+ //
+ // N_STACK_BYTES is set to 160KB. This is big enough to hold all stacks
+ // observed in some minutes of testing, whilst keeping the size of this
+ // function (DoNativeBacktrace)'s frame reasonable. Most stacks observed in
+ // practice are small, 4KB or less, and so the copy costs are insignificant
+ // compared to other profiler overhead.
+ //
+ // |stackImg| is allocated on this (the sampling thread's) stack. That
+ // implies that the frame for this function is at least N_STACK_BYTES large.
+ // In general it would be considered unacceptable to have such a large frame
+ // on a stack, but it only exists for the unwinder thread, and so is not
+ // expected to be a problem. Allocating it on the heap is troublesome because
+ // this function runs whilst the sampled thread is suspended, so any heap
+ // allocation risks deadlock. Allocating it as a global variable is not
+ // thread safe, which would be a problem if we ever allow multiple sampler
+ // threads. Hence allocating it on the stack seems to be the least-worst
+ // option.
+
+ lul::StackImage stackImg;
+
+ {
+# if defined(GP_PLAT_amd64_linux) || defined(GP_PLAT_amd64_android) || \
+ defined(GP_PLAT_amd64_freebsd)
+ uintptr_t rEDZONE_SIZE = 128;
+ uintptr_t start = startRegs.xsp.Value() - rEDZONE_SIZE;
+# elif defined(GP_PLAT_arm_linux) || defined(GP_PLAT_arm_android)
+ uintptr_t rEDZONE_SIZE = 0;
+ uintptr_t start = startRegs.r13.Value() - rEDZONE_SIZE;
+# elif defined(GP_PLAT_arm64_linux) || defined(GP_PLAT_arm64_android) || \
+ defined(GP_PLAT_arm64_freebsd)
+ uintptr_t rEDZONE_SIZE = 0;
+ uintptr_t start = startRegs.sp.Value() - rEDZONE_SIZE;
+# elif defined(GP_PLAT_x86_linux) || defined(GP_PLAT_x86_android)
+ uintptr_t rEDZONE_SIZE = 0;
+ uintptr_t start = startRegs.xsp.Value() - rEDZONE_SIZE;
+# elif defined(GP_PLAT_mips64_linux)
+ uintptr_t rEDZONE_SIZE = 0;
+ uintptr_t start = startRegs.sp.Value() - rEDZONE_SIZE;
+# else
+# error "Unknown plat"
+# endif
+ uintptr_t end = reinterpret_cast<uintptr_t>(aThreadData.StackTop());
+ uintptr_t ws = sizeof(void*);
+ start &= ~(ws - 1);
+ end &= ~(ws - 1);
+ uintptr_t nToCopy = 0;
+ if (start < end) {
+ nToCopy = end - start;
+ if (nToCopy >= 1024u * 1024u) {
+ // start is abnormally far from end, possibly due to some special code
+ // that uses a separate stack elsewhere (e.g.: rr). In this case we just
+ // give up on this sample.
+ nToCopy = 0;
+ } else if (nToCopy > lul::N_STACK_BYTES) {
+ nToCopy = lul::N_STACK_BYTES;
+ }
+ }
+ MOZ_ASSERT(nToCopy <= lul::N_STACK_BYTES);
+ stackImg.mLen = nToCopy;
+ stackImg.mStartAvma = start;
+ if (nToCopy > 0) {
+ // If this is a vanilla memcpy(), ASAN makes the following complaint:
+ //
+ // ERROR: AddressSanitizer: stack-buffer-underflow ...
+ // ...
+ // HINT: this may be a false positive if your program uses some custom
+ // stack unwind mechanism or swapcontext
+ //
+ // This code is very much a custom stack unwind mechanism! So we use an
+ // alternative memcpy() implementation that is ignored by ASAN.
+# if defined(MOZ_HAVE_ASAN_IGNORE)
+ ASAN_memcpy(&stackImg.mContents[0], (void*)start, nToCopy);
+# else
+ memcpy(&stackImg.mContents[0], (void*)start, nToCopy);
+# endif
+ (void)VALGRIND_MAKE_MEM_DEFINED(&stackImg.mContents[0], nToCopy);
+ }
+ }
+
+ size_t framePointerFramesAcquired = 0;
+ lul::LUL* lul = CorePS::Lul();
+ MOZ_RELEASE_ASSERT(lul);
+ lul->Unwind(reinterpret_cast<uintptr_t*>(aNativeStack.mPCs),
+ reinterpret_cast<uintptr_t*>(aNativeStack.mSPs),
+ &aNativeStack.mCount, &framePointerFramesAcquired,
+ MAX_NATIVE_FRAMES, &startRegs, &stackImg);
+
+ // Update stats in the LUL stats object. Unfortunately this requires
+ // three global memory operations.
+ lul->mStats.mContext += 1;
+ lul->mStats.mCFI += aNativeStack.mCount - 1 - framePointerFramesAcquired;
+ lul->mStats.mFP += framePointerFramesAcquired;
+}
+
+#endif
+
+#ifdef HAVE_NATIVE_UNWIND
+static void DoNativeBacktrace(
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const Registers& aRegs, NativeStack& aNativeStack,
+ StackWalkControl* aStackWalkControlIfSupported) {
+ // This method determines which stackwalker is used for periodic and
+ // synchronous samples. (Backtrace samples are treated differently, see
+ // profiler_suspend_and_sample_thread() for details). The only part of the
+ // ordering that matters is that LUL must precede FRAME_POINTER, because on
+ // Linux they can both be present.
+# if defined(USE_LUL_STACKWALK)
+ DoLULBacktrace(aThreadData, aRegs, aNativeStack,
+ aStackWalkControlIfSupported);
+# elif defined(USE_EHABI_STACKWALK)
+ DoEHABIBacktrace(aThreadData, aRegs, aNativeStack,
+ aStackWalkControlIfSupported);
+# elif defined(USE_FRAME_POINTER_STACK_WALK)
+ DoFramePointerBacktrace(aThreadData, aRegs, aNativeStack,
+ aStackWalkControlIfSupported);
+# elif defined(USE_MOZ_STACK_WALK)
+ DoMozStackWalkBacktrace(aThreadData, aRegs, aNativeStack,
+ aStackWalkControlIfSupported);
+# else
+# error "Invalid configuration"
+# endif
+}
+#endif
+
+// Writes some components shared by periodic and synchronous profiles to
+// ActivePS's ProfileBuffer. (This should only be called from DoSyncSample()
+// and DoPeriodicSample().)
+//
+// The grammar for entry sequences is in a comment above
+// ProfileBuffer::StreamSamplesToJSON.
+static inline void DoSharedSample(
+ bool aIsSynchronous, uint32_t aFeatures,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ JsFrame* aJsFrames, const Registers& aRegs, uint64_t aSamplePos,
+ uint64_t aBufferRangeStart, ProfileBuffer& aBuffer,
+ StackCaptureOptions aCaptureOptions = StackCaptureOptions::Full) {
+ // WARNING: this function runs within the profiler's "critical section".
+
+ MOZ_ASSERT(!aBuffer.IsThreadSafe(),
+ "Mutexes cannot be used inside this critical section");
+
+ ProfileBufferCollector collector(aBuffer, aSamplePos, aBufferRangeStart);
+ StackWalkControl* stackWalkControlIfSupported = nullptr;
+#if defined(HAVE_NATIVE_UNWIND)
+ const bool captureNative = ProfilerFeature::HasStackWalk(aFeatures) &&
+ aCaptureOptions == StackCaptureOptions::Full;
+ StackWalkControl stackWalkControl;
+ if constexpr (StackWalkControl::scIsSupported) {
+ if (captureNative) {
+ stackWalkControlIfSupported = &stackWalkControl;
+ }
+ }
+#endif // defined(HAVE_NATIVE_UNWIND)
+ const uint32_t jsFramesCount =
+ aJsFrames ? ExtractJsFrames(aIsSynchronous, aThreadData, aRegs, collector,
+ aJsFrames, stackWalkControlIfSupported)
+ : 0;
+ NativeStack nativeStack;
+#if defined(HAVE_NATIVE_UNWIND)
+ if (captureNative) {
+ DoNativeBacktrace(aThreadData, aRegs, nativeStack,
+ stackWalkControlIfSupported);
+
+ MergeStacks(aFeatures, aIsSynchronous, aThreadData, aRegs, nativeStack,
+ collector, aJsFrames, jsFramesCount);
+ } else
+#endif
+ {
+ MergeStacks(aFeatures, aIsSynchronous, aThreadData, aRegs, nativeStack,
+ collector, aJsFrames, jsFramesCount);
+
+ // We can't walk the whole native stack, but we can record the top frame.
+ if (aCaptureOptions == StackCaptureOptions::Full) {
+ aBuffer.AddEntry(ProfileBufferEntry::NativeLeafAddr((void*)aRegs.mPC));
+ }
+ }
+}
+
+// Writes the components of a synchronous sample to the given ProfileBuffer.
+static void DoSyncSample(
+ uint32_t aFeatures,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const TimeStamp& aNow, const Registers& aRegs, ProfileBuffer& aBuffer,
+ StackCaptureOptions aCaptureOptions) {
+ // WARNING: this function runs within the profiler's "critical section".
+
+ MOZ_ASSERT(aCaptureOptions != StackCaptureOptions::NoStack,
+ "DoSyncSample should not be called when no capture is needed");
+
+ const uint64_t bufferRangeStart = aBuffer.BufferRangeStart();
+
+ const uint64_t samplePos =
+ aBuffer.AddThreadIdEntry(aThreadData.Info().ThreadId());
+
+ TimeDuration delta = aNow - CorePS::ProcessStartTime();
+ aBuffer.AddEntry(ProfileBufferEntry::Time(delta.ToMilliseconds()));
+
+ if (!aThreadData.GetJSContext()) {
+ // No JSContext, there is no JS frame buffer (and no need for it).
+ DoSharedSample(/* aIsSynchronous = */ true, aFeatures, aThreadData,
+ /* aJsFrames = */ nullptr, aRegs, samplePos,
+ bufferRangeStart, aBuffer, aCaptureOptions);
+ } else {
+ // JSContext is present, we need to lock the thread data to access the JS
+ // frame buffer.
+ ThreadRegistration::WithOnThreadRef([&](ThreadRegistration::OnThreadRef
+ aOnThreadRef) {
+ aOnThreadRef.WithConstLockedRWOnThread(
+ [&](const ThreadRegistration::LockedRWOnThread& aLockedThreadData) {
+ DoSharedSample(/* aIsSynchronous = */ true, aFeatures, aThreadData,
+ aLockedThreadData.GetJsFrameBuffer(), aRegs,
+ samplePos, bufferRangeStart, aBuffer,
+ aCaptureOptions);
+ });
+ });
+ }
+}
+
+// Writes the components of a periodic sample to ActivePS's ProfileBuffer.
+// The ThreadId entry is already written in the main ProfileBuffer, its location
+// is `aSamplePos`, we can write the rest to `aBuffer` (which may be different).
+static inline void DoPeriodicSample(
+ PSLockRef aLock,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const Registers& aRegs, uint64_t aSamplePos, uint64_t aBufferRangeStart,
+ ProfileBuffer& aBuffer) {
+ // WARNING: this function runs within the profiler's "critical section".
+
+ MOZ_RELEASE_ASSERT(ActivePS::Exists(aLock));
+
+ JsFrameBuffer& jsFrames = CorePS::JsFrames(aLock);
+ DoSharedSample(/* aIsSynchronous = */ false, ActivePS::Features(aLock),
+ aThreadData, jsFrames, aRegs, aSamplePos, aBufferRangeStart,
+ aBuffer);
+}
+
+// END sampling/unwinding code
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN saving/streaming code
+
+const static uint64_t kJS_MAX_SAFE_UINTEGER = +9007199254740991ULL;
+
+static int64_t SafeJSInteger(uint64_t aValue) {
+ return aValue <= kJS_MAX_SAFE_UINTEGER ? int64_t(aValue) : -1;
+}
+
+static void AddSharedLibraryInfoToStream(JSONWriter& aWriter,
+ const SharedLibrary& aLib) {
+ aWriter.StartObjectElement();
+ aWriter.IntProperty("start", SafeJSInteger(aLib.GetStart()));
+ aWriter.IntProperty("end", SafeJSInteger(aLib.GetEnd()));
+ aWriter.IntProperty("offset", SafeJSInteger(aLib.GetOffset()));
+ aWriter.StringProperty("name", NS_ConvertUTF16toUTF8(aLib.GetModuleName()));
+ aWriter.StringProperty("path", NS_ConvertUTF16toUTF8(aLib.GetModulePath()));
+ aWriter.StringProperty("debugName",
+ NS_ConvertUTF16toUTF8(aLib.GetDebugName()));
+ aWriter.StringProperty("debugPath",
+ NS_ConvertUTF16toUTF8(aLib.GetDebugPath()));
+ aWriter.StringProperty("breakpadId", aLib.GetBreakpadId());
+ aWriter.StringProperty("codeId", aLib.GetCodeId());
+ aWriter.StringProperty("arch", aLib.GetArch());
+ aWriter.EndObject();
+}
+
+void AppendSharedLibraries(JSONWriter& aWriter,
+ const SharedLibraryInfo& aInfo) {
+ for (size_t i = 0; i < aInfo.GetSize(); i++) {
+ AddSharedLibraryInfoToStream(aWriter, aInfo.GetEntry(i));
+ }
+}
+
+static void StreamCategories(SpliceableJSONWriter& aWriter) {
+ // Same order as ProfilingCategory. Format:
+ // [
+ // {
+ // name: "Idle",
+ // color: "transparent",
+ // subcategories: ["Other"],
+ // },
+ // {
+ // name: "Other",
+ // color: "grey",
+ // subcategories: [
+ // "JSM loading",
+ // "Subprocess launching",
+ // "DLL loading"
+ // ]
+ // },
+ // ...
+ // ]
+
+#define CATEGORY_JSON_BEGIN_CATEGORY(name, labelAsString, color) \
+ aWriter.Start(); \
+ aWriter.StringProperty("name", labelAsString); \
+ aWriter.StringProperty("color", color); \
+ aWriter.StartArrayProperty("subcategories");
+#define CATEGORY_JSON_SUBCATEGORY(supercategory, name, labelAsString) \
+ aWriter.StringElement(labelAsString);
+#define CATEGORY_JSON_END_CATEGORY \
+ aWriter.EndArray(); \
+ aWriter.EndObject();
+
+ MOZ_PROFILING_CATEGORY_LIST(CATEGORY_JSON_BEGIN_CATEGORY,
+ CATEGORY_JSON_SUBCATEGORY,
+ CATEGORY_JSON_END_CATEGORY)
+
+#undef CATEGORY_JSON_BEGIN_CATEGORY
+#undef CATEGORY_JSON_SUBCATEGORY
+#undef CATEGORY_JSON_END_CATEGORY
+}
+
+static void StreamMarkerSchema(SpliceableJSONWriter& aWriter) {
+ // Get an array view with all registered marker-type-specific functions.
+ base_profiler_markers_detail::Streaming::LockedMarkerTypeFunctionsList
+ markerTypeFunctionsArray;
+ // List of streamed marker names, this is used to spot duplicates.
+ std::set<std::string> names;
+ // Stream the display schema for each different one. (Duplications may come
+ // from the same code potentially living in different libraries.)
+ for (const auto& markerTypeFunctions : markerTypeFunctionsArray) {
+ auto name = markerTypeFunctions.mMarkerTypeNameFunction();
+ // std::set.insert(T&&) returns a pair, its `second` is true if the element
+ // was actually inserted (i.e., it was not there yet.)
+ const bool didInsert =
+ names.insert(std::string(name.data(), name.size())).second;
+ if (didInsert) {
+ markerTypeFunctions.mMarkerSchemaFunction().Stream(aWriter, name);
+ }
+ }
+
+ // Now stream the Rust marker schemas. Passing the names set as a void pointer
+ // as well, so we can continue checking if the schemes are added already in
+ // the Rust side.
+ profiler::ffi::gecko_profiler_stream_marker_schemas(
+ &aWriter, static_cast<void*>(&names));
+}
+
+// Some meta information that is better recorded before streaming the profile.
+// This is *not* intended to be cached, as some values could change between
+// profiling sessions.
+struct PreRecordedMetaInformation {
+ bool mAsyncStacks;
+
+ // This struct should only live on the stack, so it's fine to use Auto
+ // strings.
+ nsAutoCString mHttpPlatform;
+ nsAutoCString mHttpOscpu;
+ nsAutoCString mHttpMisc;
+
+ nsAutoCString mRuntimeABI;
+ nsAutoCString mRuntimeToolkit;
+
+ nsAutoCString mAppInfoProduct;
+ nsAutoCString mAppInfoAppBuildID;
+ nsAutoCString mAppInfoSourceURL;
+
+ int32_t mProcessInfoCpuCount;
+ int32_t mProcessInfoCpuCores;
+ nsAutoCString mProcessInfoCpuName;
+};
+
+// This function should be called out of the profiler lock.
+// It gathers non-trivial data that doesn't require the profiler to stop, or for
+// which the request could theoretically deadlock if the profiler is locked.
+static PreRecordedMetaInformation PreRecordMetaInformation() {
+ MOZ_ASSERT(!PSAutoLock::IsLockedOnCurrentThread());
+
+ PreRecordedMetaInformation info = {}; // Aggregate-init all fields.
+
+ if (!NS_IsMainThread()) {
+ // Leave these properties out if we're not on the main thread.
+ // At the moment, the only case in which this function is called on a
+ // background thread is if we're in a content process and are going to
+ // send this profile to the parent process. In that case, the parent
+ // process profile's "meta" object already has the rest of the properties,
+ // and the parent process profile is dumped on that process's main thread.
+ return info;
+ }
+
+ info.mAsyncStacks = Preferences::GetBool("javascript.options.asyncstack");
+
+ nsresult res;
+
+ if (nsCOMPtr<nsIHttpProtocolHandler> http =
+ do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &res);
+ !NS_FAILED(res) && http) {
+ Unused << http->GetPlatform(info.mHttpPlatform);
+
+#if defined(GP_OS_darwin)
+ // On Mac, the http "oscpu" is capped at 10.15, so we need to get the real
+ // OS version directly.
+ int major = 0;
+ int minor = 0;
+ int bugfix = 0;
+ nsCocoaFeatures::GetSystemVersion(major, minor, bugfix);
+ if (major != 0) {
+ info.mHttpOscpu.AppendLiteral("macOS ");
+ info.mHttpOscpu.AppendInt(major);
+ info.mHttpOscpu.AppendLiteral(".");
+ info.mHttpOscpu.AppendInt(minor);
+ info.mHttpOscpu.AppendLiteral(".");
+ info.mHttpOscpu.AppendInt(bugfix);
+ } else
+#endif
+#if defined(GP_OS_windows)
+ // On Windows, the http "oscpu" is capped at Windows 10, so we need to get
+ // the real OS version directly.
+ OSVERSIONINFO ovi = {sizeof(OSVERSIONINFO)};
+ if (GetVersionEx(&ovi)) {
+ info.mHttpOscpu.AppendLiteral("Windows ");
+ // The major version returned for Windows 11 is 10, but we can
+ // identify it from the build number.
+ info.mHttpOscpu.AppendInt(
+ ovi.dwBuildNumber >= 22000 ? 11 : int32_t(ovi.dwMajorVersion));
+ info.mHttpOscpu.AppendLiteral(".");
+ info.mHttpOscpu.AppendInt(int32_t(ovi.dwMinorVersion));
+# if defined(_ARM64_)
+ info.mHttpOscpu.AppendLiteral(" Arm64");
+# endif
+ info.mHttpOscpu.AppendLiteral("; build=");
+ info.mHttpOscpu.AppendInt(int32_t(ovi.dwBuildNumber));
+ } else
+#endif
+ {
+ Unused << http->GetOscpu(info.mHttpOscpu);
+ }
+
+ // Firefox version is capped to 109.0 in the http "misc" field due to some
+ // webcompat issues (Bug 1805967). We need to put the real version instead.
+ info.mHttpMisc.AssignLiteral("rv:");
+ info.mHttpMisc.AppendLiteral(MOZILLA_UAVERSION);
+ }
+
+ if (nsCOMPtr<nsIXULRuntime> runtime =
+ do_GetService("@mozilla.org/xre/runtime;1");
+ runtime) {
+ Unused << runtime->GetXPCOMABI(info.mRuntimeABI);
+ Unused << runtime->GetWidgetToolkit(info.mRuntimeToolkit);
+ }
+
+ if (nsCOMPtr<nsIXULAppInfo> appInfo =
+ do_GetService("@mozilla.org/xre/app-info;1");
+ appInfo) {
+ Unused << appInfo->GetName(info.mAppInfoProduct);
+ Unused << appInfo->GetAppBuildID(info.mAppInfoAppBuildID);
+ Unused << appInfo->GetSourceURL(info.mAppInfoSourceURL);
+ }
+
+ ProcessInfo processInfo = {}; // Aggregate-init all fields to false/zeroes.
+ if (NS_SUCCEEDED(CollectProcessInfo(processInfo))) {
+ info.mProcessInfoCpuCount = processInfo.cpuCount;
+ info.mProcessInfoCpuCores = processInfo.cpuCores;
+ info.mProcessInfoCpuName = processInfo.cpuName;
+ }
+
+ return info;
+}
+
+// Implemented in platform-specific cpps, to add object properties describing
+// the units of CPU measurements in samples.
+static void StreamMetaPlatformSampleUnits(PSLockRef aLock,
+ SpliceableJSONWriter& aWriter);
+
+static void StreamMetaJSCustomObject(
+ PSLockRef aLock, SpliceableJSONWriter& aWriter, bool aIsShuttingDown,
+ const PreRecordedMetaInformation& aPreRecordedMetaInformation) {
+ MOZ_RELEASE_ASSERT(CorePS::Exists() && ActivePS::Exists(aLock));
+
+ aWriter.IntProperty("version", 27);
+
+ // The "startTime" field holds the number of milliseconds since midnight
+ // January 1, 1970 GMT. This grotty code computes (Now - (Now -
+ // ProcessStartTime)) to convert CorePS::ProcessStartTime() into that form.
+ // Note: This is the only absolute time in the profile! All other timestamps
+ // are relative to this startTime.
+ TimeDuration delta = TimeStamp::Now() - CorePS::ProcessStartTime();
+ aWriter.DoubleProperty(
+ "startTime",
+ static_cast<double>(PR_Now() / 1000.0 - delta.ToMilliseconds()));
+
+ aWriter.DoubleProperty("profilingStartTime", (ActivePS::ProfilingStartTime() -
+ CorePS::ProcessStartTime())
+ .ToMilliseconds());
+
+ if (const TimeStamp contentEarliestTime =
+ ActivePS::Buffer(aLock)
+ .UnderlyingChunkedBuffer()
+ .GetEarliestChunkStartTimeStamp();
+ !contentEarliestTime.IsNull()) {
+ aWriter.DoubleProperty(
+ "contentEarliestTime",
+ (contentEarliestTime - CorePS::ProcessStartTime()).ToMilliseconds());
+ } else {
+ aWriter.NullProperty("contentEarliestTime");
+ }
+
+ const double profilingEndTime = profiler_time();
+ aWriter.DoubleProperty("profilingEndTime", profilingEndTime);
+
+ if (aIsShuttingDown) {
+ aWriter.DoubleProperty("shutdownTime", profilingEndTime);
+ } else {
+ aWriter.NullProperty("shutdownTime");
+ }
+
+ aWriter.StartArrayProperty("categories");
+ StreamCategories(aWriter);
+ aWriter.EndArray();
+
+ aWriter.StartArrayProperty("markerSchema");
+ StreamMarkerSchema(aWriter);
+ aWriter.EndArray();
+
+ ActivePS::WriteActiveConfiguration(aLock, aWriter,
+ MakeStringSpan("configuration"));
+
+ if (!NS_IsMainThread()) {
+ // Leave the rest of the properties out if we're not on the main thread.
+ // At the moment, the only case in which this function is called on a
+ // background thread is if we're in a content process and are going to
+ // send this profile to the parent process. In that case, the parent
+ // process profile's "meta" object already has the rest of the properties,
+ // and the parent process profile is dumped on that process's main thread.
+ return;
+ }
+
+ aWriter.DoubleProperty("interval", ActivePS::Interval(aLock));
+ aWriter.IntProperty("stackwalk", ActivePS::FeatureStackWalk(aLock));
+
+#ifdef DEBUG
+ aWriter.IntProperty("debug", 1);
+#else
+ aWriter.IntProperty("debug", 0);
+#endif
+
+ aWriter.IntProperty("gcpoison", JS::IsGCPoisoning() ? 1 : 0);
+
+ aWriter.IntProperty("asyncstack", aPreRecordedMetaInformation.mAsyncStacks);
+
+ aWriter.IntProperty("processType", XRE_GetProcessType());
+
+ aWriter.StringProperty("updateChannel", MOZ_STRINGIFY(MOZ_UPDATE_CHANNEL));
+
+ if (!aPreRecordedMetaInformation.mHttpPlatform.IsEmpty()) {
+ aWriter.StringProperty("platform",
+ aPreRecordedMetaInformation.mHttpPlatform);
+ }
+ if (!aPreRecordedMetaInformation.mHttpOscpu.IsEmpty()) {
+ aWriter.StringProperty("oscpu", aPreRecordedMetaInformation.mHttpOscpu);
+ }
+ if (!aPreRecordedMetaInformation.mHttpMisc.IsEmpty()) {
+ aWriter.StringProperty("misc", aPreRecordedMetaInformation.mHttpMisc);
+ }
+
+ if (!aPreRecordedMetaInformation.mRuntimeABI.IsEmpty()) {
+ aWriter.StringProperty("abi", aPreRecordedMetaInformation.mRuntimeABI);
+ }
+ if (!aPreRecordedMetaInformation.mRuntimeToolkit.IsEmpty()) {
+ aWriter.StringProperty("toolkit",
+ aPreRecordedMetaInformation.mRuntimeToolkit);
+ }
+
+ if (!aPreRecordedMetaInformation.mAppInfoProduct.IsEmpty()) {
+ aWriter.StringProperty("product",
+ aPreRecordedMetaInformation.mAppInfoProduct);
+ }
+ if (!aPreRecordedMetaInformation.mAppInfoAppBuildID.IsEmpty()) {
+ aWriter.StringProperty("appBuildID",
+ aPreRecordedMetaInformation.mAppInfoAppBuildID);
+ }
+ if (!aPreRecordedMetaInformation.mAppInfoSourceURL.IsEmpty()) {
+ aWriter.StringProperty("sourceURL",
+ aPreRecordedMetaInformation.mAppInfoSourceURL);
+ }
+
+ if (!aPreRecordedMetaInformation.mProcessInfoCpuName.IsEmpty()) {
+ aWriter.StringProperty("CPUName",
+ aPreRecordedMetaInformation.mProcessInfoCpuName);
+ }
+ if (aPreRecordedMetaInformation.mProcessInfoCpuCores > 0) {
+ aWriter.IntProperty("physicalCPUs",
+ aPreRecordedMetaInformation.mProcessInfoCpuCores);
+ }
+ if (aPreRecordedMetaInformation.mProcessInfoCpuCount > 0) {
+ aWriter.IntProperty("logicalCPUs",
+ aPreRecordedMetaInformation.mProcessInfoCpuCount);
+ }
+
+#if defined(GP_OS_android)
+ jni::String::LocalRef deviceInformation =
+ java::GeckoJavaSampler::GetDeviceInformation();
+ aWriter.StringProperty("device", deviceInformation->ToCString());
+#endif
+
+ aWriter.StartObjectProperty("sampleUnits");
+ {
+ aWriter.StringProperty("time", "ms");
+ aWriter.StringProperty("eventDelay", "ms");
+ StreamMetaPlatformSampleUnits(aLock, aWriter);
+ }
+ aWriter.EndObject();
+
+ // We should avoid collecting extension metadata for profiler when there is no
+ // observer service, since a ExtensionPolicyService could not be created then.
+ if (nsCOMPtr<nsIObserverService> os = services::GetObserverService()) {
+ aWriter.StartObjectProperty("extensions");
+ {
+ {
+ JSONSchemaWriter schema(aWriter);
+ schema.WriteField("id");
+ schema.WriteField("name");
+ schema.WriteField("baseURL");
+ }
+
+ aWriter.StartArrayProperty("data");
+ {
+ nsTArray<RefPtr<WebExtensionPolicy>> exts;
+ ExtensionPolicyService::GetSingleton().GetAll(exts);
+
+ for (auto& ext : exts) {
+ aWriter.StartArrayElement();
+
+ nsAutoString id;
+ ext->GetId(id);
+ aWriter.StringElement(NS_ConvertUTF16toUTF8(id));
+
+ aWriter.StringElement(NS_ConvertUTF16toUTF8(ext->Name()));
+
+ auto url = ext->GetURL(u""_ns);
+ if (url.isOk()) {
+ aWriter.StringElement(NS_ConvertUTF16toUTF8(url.unwrap()));
+ }
+
+ aWriter.EndArray();
+ }
+ }
+ aWriter.EndArray();
+ }
+ aWriter.EndObject();
+ }
+}
+
+static void StreamPages(PSLockRef aLock, SpliceableJSONWriter& aWriter) {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+ ActivePS::DiscardExpiredPages(aLock);
+ for (const auto& page : ActivePS::ProfiledPages(aLock)) {
+ page->StreamJSON(aWriter);
+ }
+}
+
+#if defined(GP_OS_android)
+template <int N>
+static bool StartsWith(const nsACString& string, const char (&prefix)[N]) {
+ if (N - 1 > string.Length()) {
+ return false;
+ }
+ return memcmp(string.Data(), prefix, N - 1) == 0;
+}
+
+static JS::ProfilingCategoryPair InferJavaCategory(nsACString& aName) {
+ if (aName.EqualsLiteral("android.os.MessageQueue.nativePollOnce()")) {
+ return JS::ProfilingCategoryPair::IDLE;
+ }
+ if (aName.EqualsLiteral("java.lang.Object.wait()")) {
+ return JS::ProfilingCategoryPair::JAVA_BLOCKED;
+ }
+ if (StartsWith(aName, "android.") || StartsWith(aName, "com.android.")) {
+ return JS::ProfilingCategoryPair::JAVA_ANDROID;
+ }
+ if (StartsWith(aName, "mozilla.") || StartsWith(aName, "org.mozilla.")) {
+ return JS::ProfilingCategoryPair::JAVA_MOZILLA;
+ }
+ if (StartsWith(aName, "java.") || StartsWith(aName, "sun.") ||
+ StartsWith(aName, "com.sun.")) {
+ return JS::ProfilingCategoryPair::JAVA_LANGUAGE;
+ }
+ if (StartsWith(aName, "kotlin.") || StartsWith(aName, "kotlinx.")) {
+ return JS::ProfilingCategoryPair::JAVA_KOTLIN;
+ }
+ if (StartsWith(aName, "androidx.")) {
+ return JS::ProfilingCategoryPair::JAVA_ANDROIDX;
+ }
+ return JS::ProfilingCategoryPair::OTHER;
+}
+
+// Marker type for Java markers without any details.
+struct JavaMarker {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("Java");
+ }
+ static void StreamJSONMarkerData(
+ baseprofiler::SpliceableJSONWriter& aWriter) {}
+ static MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::TimelineOverview, MS::Location::MarkerChart,
+ MS::Location::MarkerTable};
+ schema.SetAllLabels("{marker.name}");
+ return schema;
+ }
+};
+
+// Marker type for Java markers with a detail field.
+struct JavaMarkerWithDetails {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("JavaWithDetails");
+ }
+ static void StreamJSONMarkerData(baseprofiler::SpliceableJSONWriter& aWriter,
+ const ProfilerString8View& aText) {
+ // This (currently) needs to be called "name" to be searchable on the
+ // front-end.
+ aWriter.StringProperty("name", aText);
+ }
+ static MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::TimelineOverview, MS::Location::MarkerChart,
+ MS::Location::MarkerTable};
+ schema.SetTooltipLabel("{marker.name}");
+ schema.SetChartLabel("{marker.data.name}");
+ schema.SetTableLabel("{marker.name} - {marker.data.name}");
+ schema.AddKeyLabelFormatSearchable("name", "Details", MS::Format::String,
+ MS::Searchable::Searchable);
+ return schema;
+ }
+};
+
+static void CollectJavaThreadProfileData(
+ nsTArray<java::GeckoJavaSampler::ThreadInfo::LocalRef>& javaThreads,
+ ProfileBuffer& aProfileBuffer) {
+ // Retrieve metadata about the threads.
+ const auto threadCount = java::GeckoJavaSampler::GetRegisteredThreadCount();
+ for (int i = 0; i < threadCount; i++) {
+ javaThreads.AppendElement(
+ java::GeckoJavaSampler::GetRegisteredThreadInfo(i));
+ }
+
+ // locked_profiler_start uses sample count is 1000 for Java thread.
+ // This entry size is enough now, but we might have to estimate it
+ // if we can customize it
+ // Pass the samples
+ int sampleId = 0;
+ while (true) {
+ const auto threadId = java::GeckoJavaSampler::GetThreadId(sampleId);
+ double sampleTime = java::GeckoJavaSampler::GetSampleTime(sampleId);
+ if (threadId == 0 || sampleTime == 0.0) {
+ break;
+ }
+
+ aProfileBuffer.AddThreadIdEntry(ProfilerThreadId::FromNumber(threadId));
+ aProfileBuffer.AddEntry(ProfileBufferEntry::Time(sampleTime));
+ int frameId = 0;
+ while (true) {
+ jni::String::LocalRef frameName =
+ java::GeckoJavaSampler::GetFrameName(sampleId, frameId++);
+ if (!frameName) {
+ break;
+ }
+ nsCString frameNameString = frameName->ToCString();
+
+ auto categoryPair = InferJavaCategory(frameNameString);
+ aProfileBuffer.CollectCodeLocation("", frameNameString.get(), 0, 0,
+ Nothing(), Nothing(),
+ Some(categoryPair));
+ }
+ sampleId++;
+ }
+
+ // Pass the markers now
+ while (true) {
+ // Gets the data from the Android UI thread only.
+ java::GeckoJavaSampler::Marker::LocalRef marker =
+ java::GeckoJavaSampler::PollNextMarker();
+ if (!marker) {
+ // All markers are transferred.
+ break;
+ }
+
+ // Get all the marker information from the Java thread using JNI.
+ const auto threadId = ProfilerThreadId::FromNumber(marker->GetThreadId());
+ nsCString markerName = marker->GetMarkerName()->ToCString();
+ jni::String::LocalRef text = marker->GetMarkerText();
+ TimeStamp startTime =
+ CorePS::ProcessStartTime() +
+ TimeDuration::FromMilliseconds(marker->GetStartTime());
+
+ double endTimeMs = marker->GetEndTime();
+ // A marker can be either a duration with start and end, or a point in time
+ // with only startTime. If endTime is 0, this means it's a point in time.
+ TimeStamp endTime = endTimeMs == 0
+ ? startTime
+ : CorePS::ProcessStartTime() +
+ TimeDuration::FromMilliseconds(endTimeMs);
+ MarkerTiming timing = endTimeMs == 0
+ ? MarkerTiming::InstantAt(startTime)
+ : MarkerTiming::Interval(startTime, endTime);
+
+ if (!text) {
+ // This marker doesn't have a text.
+ AddMarkerToBuffer(aProfileBuffer.UnderlyingChunkedBuffer(), markerName,
+ geckoprofiler::category::JAVA_ANDROID,
+ {MarkerThreadId(threadId), std::move(timing)},
+ JavaMarker{});
+ } else {
+ // This marker has a text.
+ AddMarkerToBuffer(aProfileBuffer.UnderlyingChunkedBuffer(), markerName,
+ geckoprofiler::category::JAVA_ANDROID,
+ {MarkerThreadId(threadId), std::move(timing)},
+ JavaMarkerWithDetails{}, text->ToCString());
+ }
+ }
+}
+#endif
+
+UniquePtr<ProfilerCodeAddressService>
+profiler_code_address_service_for_presymbolication() {
+ static const bool preSymbolicate = []() {
+ const char* symbolicate = getenv("MOZ_PROFILER_SYMBOLICATE");
+ return symbolicate && symbolicate[0] != '\0';
+ }();
+ return preSymbolicate ? MakeUnique<ProfilerCodeAddressService>() : nullptr;
+}
+
+static ProfilerResult<ProfileGenerationAdditionalInformation>
+locked_profiler_stream_json_for_this_process(
+ PSLockRef aLock, SpliceableJSONWriter& aWriter, double aSinceTime,
+ const PreRecordedMetaInformation& aPreRecordedMetaInformation,
+ bool aIsShuttingDown, ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger) {
+ LOG("locked_profiler_stream_json_for_this_process");
+
+#ifdef DEBUG
+ PRIntervalTime slowWithSleeps = 0;
+ if (!XRE_IsParentProcess()) {
+ for (const auto& filter : ActivePS::Filters(aLock)) {
+ if (filter == "test-debug-child-slow-json") {
+ LOG("test-debug-child-slow-json");
+ // There are 10 slow-downs below, each will sleep 250ms, for a total of
+ // 2.5s, which should trigger the first progress request after 1s, and
+ // the next progress which will have advanced further, so this profile
+ // shouldn't get dropped.
+ slowWithSleeps = PR_MillisecondsToInterval(250);
+ } else if (filter == "test-debug-child-very-slow-json") {
+ LOG("test-debug-child-very-slow-json");
+ // Wait for more than 2s without any progress, which should get this
+ // profile discarded.
+ PR_Sleep(PR_SecondsToInterval(5));
+ }
+ }
+ }
+# define SLOW_DOWN_FOR_TESTING() \
+ if (slowWithSleeps != 0) { \
+ DEBUG_LOG("progress=%.0f%%, sleep...", \
+ aProgressLogger.GetGlobalProgress().ToDouble() * 100.0); \
+ PR_Sleep(slowWithSleeps); \
+ }
+#else // #ifdef DEBUG
+# define SLOW_DOWN_FOR_TESTING() /* No slow-downs */
+#endif // #ifdef DEBUG #else
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists() && ActivePS::Exists(aLock));
+
+ AUTO_PROFILER_STATS(locked_profiler_stream_json_for_this_process);
+
+ const double collectionStartMs = profiler_time();
+
+ ProfileBuffer& buffer = ActivePS::Buffer(aLock);
+
+ aProgressLogger.SetLocalProgress(1_pc, "Locked profile buffer");
+
+ SLOW_DOWN_FOR_TESTING();
+
+ // If there is a set "Window length", discard older data.
+ Maybe<double> durationS = ActivePS::Duration(aLock);
+ if (durationS.isSome()) {
+ const double durationStartMs = collectionStartMs - *durationS * 1000;
+ buffer.DiscardSamplesBeforeTime(durationStartMs);
+ }
+ aProgressLogger.SetLocalProgress(2_pc, "Discarded old data");
+
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ SLOW_DOWN_FOR_TESTING();
+
+#if defined(GP_OS_android)
+ // Java thread profile data should be collected before serializing the meta
+ // object. This is because Java thread adds some markers with marker schema
+ // objects. And these objects should be added before the serialization of the
+ // `profile.meta.markerSchema` array, so these marker schema objects can also
+ // be serialized properly. That's why java thread profile data needs to be
+ // done before everything.
+
+ // We are allocating it chunk by chunk. So this will not allocate 64 MiB
+ // at once. This size should be more than enough for java threads.
+ // This buffer is being created for each process but Android has
+ // relatively fewer processes compared to desktop, so it's okay here.
+ mozilla::ProfileBufferChunkManagerWithLocalLimit javaChunkManager(
+ 64 * 1024 * 1024, 1024 * 1024);
+ ProfileChunkedBuffer javaBufferManager(
+ ProfileChunkedBuffer::ThreadSafety::WithoutMutex, javaChunkManager);
+ ProfileBuffer javaBuffer(javaBufferManager);
+
+ nsTArray<java::GeckoJavaSampler::ThreadInfo::LocalRef> javaThreads;
+
+ if (ActivePS::FeatureJava(aLock)) {
+ CollectJavaThreadProfileData(javaThreads, javaBuffer);
+ aProgressLogger.SetLocalProgress(3_pc, "Collected Java thread");
+ }
+#endif
+
+ // Put shared library info
+ aWriter.StartArrayProperty("libs");
+ SharedLibraryInfo sharedLibraryInfo = SharedLibraryInfo::GetInfoForSelf();
+ sharedLibraryInfo.SortByAddress();
+ AppendSharedLibraries(aWriter, sharedLibraryInfo);
+ aWriter.EndArray();
+ aProgressLogger.SetLocalProgress(4_pc, "Wrote library information");
+
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ SLOW_DOWN_FOR_TESTING();
+
+ // Put meta data
+ aWriter.StartObjectProperty("meta");
+ {
+ StreamMetaJSCustomObject(aLock, aWriter, aIsShuttingDown,
+ aPreRecordedMetaInformation);
+ }
+ aWriter.EndObject();
+ aProgressLogger.SetLocalProgress(5_pc, "Wrote profile metadata");
+
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ SLOW_DOWN_FOR_TESTING();
+
+ // Put page data
+ aWriter.StartArrayProperty("pages");
+ { StreamPages(aLock, aWriter); }
+ aWriter.EndArray();
+ aProgressLogger.SetLocalProgress(6_pc, "Wrote pages");
+
+ buffer.StreamProfilerOverheadToJSON(
+ aWriter, CorePS::ProcessStartTime(), aSinceTime,
+ aProgressLogger.CreateSubLoggerTo(10_pc, "Wrote profiler overheads"));
+
+ buffer.StreamCountersToJSON(
+ aWriter, CorePS::ProcessStartTime(), aSinceTime,
+ aProgressLogger.CreateSubLoggerTo(14_pc, "Wrote counters"));
+
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ SLOW_DOWN_FOR_TESTING();
+
+ // Lists the samples for each thread profile
+ aWriter.StartArrayProperty("threads");
+ {
+ ActivePS::DiscardExpiredDeadProfiledThreads(aLock);
+ aProgressLogger.SetLocalProgress(15_pc, "Discarded expired profiles");
+
+ ThreadRegistry::LockedRegistry lockedRegistry;
+ ActivePS::ProfiledThreadList threads =
+ ActivePS::ProfiledThreads(lockedRegistry, aLock);
+
+ const uint32_t threadCount = uint32_t(threads.length());
+
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ SLOW_DOWN_FOR_TESTING();
+
+ // Prepare the streaming context for each thread.
+ ProcessStreamingContext processStreamingContext(
+ threadCount, aWriter.SourceFailureLatch(), CorePS::ProcessStartTime(),
+ aSinceTime);
+ for (auto&& [i, progressLogger] : aProgressLogger.CreateLoopSubLoggersTo(
+ 20_pc, threadCount, "Preparing thread streaming contexts...")) {
+ ActivePS::ProfiledThreadListElement& thread = threads[i];
+ MOZ_RELEASE_ASSERT(thread.mProfiledThreadData);
+ processStreamingContext.AddThreadStreamingContext(
+ *thread.mProfiledThreadData, buffer, thread.mJSContext, aService,
+ std::move(progressLogger));
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ }
+
+ SLOW_DOWN_FOR_TESTING();
+
+ // Read the buffer once, and extract all samples and markers that the
+ // context expects.
+ buffer.StreamSamplesAndMarkersToJSON(
+ processStreamingContext, aProgressLogger.CreateSubLoggerTo(
+ "Processing samples and markers...", 80_pc,
+ "Processed samples and markers"));
+
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ SLOW_DOWN_FOR_TESTING();
+
+ // Stream each thread from the pre-filled context.
+ ThreadStreamingContext* const contextListBegin =
+ processStreamingContext.begin();
+ MOZ_ASSERT(uint32_t(processStreamingContext.end() - contextListBegin) ==
+ threadCount);
+ for (auto&& [i, progressLogger] : aProgressLogger.CreateLoopSubLoggersTo(
+ 92_pc, threadCount, "Streaming threads...")) {
+ ThreadStreamingContext& threadStreamingContext = contextListBegin[i];
+ threadStreamingContext.FinalizeWriter();
+ threadStreamingContext.mProfiledThreadData.StreamJSON(
+ std::move(threadStreamingContext), aWriter,
+ CorePS::ProcessName(aLock), CorePS::ETLDplus1(aLock),
+ CorePS::ProcessStartTime(), aService, std::move(progressLogger));
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ }
+ aProgressLogger.SetLocalProgress(92_pc, "Wrote samples and markers");
+
+#if defined(GP_OS_android)
+ if (ActivePS::FeatureJava(aLock)) {
+ for (java::GeckoJavaSampler::ThreadInfo::LocalRef& threadInfo :
+ javaThreads) {
+ ProfiledThreadData threadData(ThreadRegistrationInfo{
+ threadInfo->GetName()->ToCString().BeginReading(),
+ ProfilerThreadId::FromNumber(threadInfo->GetId()), false,
+ CorePS::ProcessStartTime()});
+
+ threadData.StreamJSON(
+ javaBuffer, nullptr, aWriter, CorePS::ProcessName(aLock),
+ CorePS::ETLDplus1(aLock), CorePS::ProcessStartTime(), aSinceTime,
+ nullptr,
+ aProgressLogger.CreateSubLoggerTo("Streaming Java thread...", 96_pc,
+ "Streamed Java thread"));
+ }
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ } else {
+ aProgressLogger.SetLocalProgress(96_pc, "No Java thread");
+ }
+#endif
+
+ UniquePtr<char[]> baseProfileThreads =
+ ActivePS::MoveBaseProfileThreads(aLock);
+ if (baseProfileThreads) {
+ aWriter.Splice(MakeStringSpan(baseProfileThreads.get()));
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ aProgressLogger.SetLocalProgress(97_pc, "Wrote baseprofiler data");
+ } else {
+ aProgressLogger.SetLocalProgress(97_pc, "No baseprofiler data");
+ }
+ }
+ aWriter.EndArray();
+
+ SLOW_DOWN_FOR_TESTING();
+
+ aWriter.StartArrayProperty("pausedRanges");
+ {
+ buffer.StreamPausedRangesToJSON(
+ aWriter, aSinceTime,
+ aProgressLogger.CreateSubLoggerTo("Streaming pauses...", 99_pc,
+ "Streamed pauses"));
+ }
+ aWriter.EndArray();
+
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+
+ ProfilingLog::Access([&](Json::Value& aProfilingLogObject) {
+ aProfilingLogObject[Json::StaticString{
+ "profilingLogEnd" TIMESTAMP_JSON_SUFFIX}] = ProfilingLog::Timestamp();
+
+ aWriter.StartObjectProperty("profilingLog");
+ {
+ nsAutoCString pid;
+ pid.AppendInt(int64_t(profiler_current_process_id().ToNumber()));
+ Json::String logString = ToCompactString(aProfilingLogObject);
+ aWriter.SplicedJSONProperty(pid, logString);
+ }
+ aWriter.EndObject();
+ });
+
+ const double collectionEndMs = profiler_time();
+
+ // Record timestamps for the collection into the buffer, so that consumers
+ // know why we didn't collect any samples for its duration.
+ // We put these entries into the buffer after we've collected the profile,
+ // so they'll be visible for the *next* profile collection (if they haven't
+ // been overwritten due to buffer wraparound by then).
+ buffer.AddEntry(ProfileBufferEntry::CollectionStart(collectionStartMs));
+ buffer.AddEntry(ProfileBufferEntry::CollectionEnd(collectionEndMs));
+
+#ifdef DEBUG
+ if (slowWithSleeps != 0) {
+ LOG("locked_profiler_stream_json_for_this_process done");
+ }
+#endif // DEBUG
+
+ return ProfileGenerationAdditionalInformation{std::move(sharedLibraryInfo)};
+}
+
+// Keep this internal function non-static, so it may be used by tests.
+ProfilerResult<ProfileGenerationAdditionalInformation>
+do_profiler_stream_json_for_this_process(
+ SpliceableJSONWriter& aWriter, double aSinceTime, bool aIsShuttingDown,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger) {
+ LOG("profiler_stream_json_for_this_process");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ const auto preRecordedMetaInformation = PreRecordMetaInformation();
+
+ aProgressLogger.SetLocalProgress(2_pc, "PreRecordMetaInformation done");
+
+ if (profiler_is_active()) {
+ invoke_profiler_state_change_callbacks(ProfilingState::GeneratingProfile);
+ }
+
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return Err(ProfilerError::IsInactive);
+ }
+
+ ProfileGenerationAdditionalInformation additionalInfo;
+ MOZ_TRY_VAR(
+ additionalInfo,
+ locked_profiler_stream_json_for_this_process(
+ lock, aWriter, aSinceTime, preRecordedMetaInformation,
+ aIsShuttingDown, aService,
+ aProgressLogger.CreateSubLoggerFromTo(
+ 3_pc, "locked_profiler_stream_json_for_this_process started",
+ 100_pc, "locked_profiler_stream_json_for_this_process done")));
+
+ if (aWriter.Failed()) {
+ return Err(ProfilerError::JsonGenerationFailed);
+ }
+ return additionalInfo;
+}
+
+ProfilerResult<ProfileGenerationAdditionalInformation>
+profiler_stream_json_for_this_process(SpliceableJSONWriter& aWriter,
+ double aSinceTime, bool aIsShuttingDown,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger) {
+ MOZ_RELEASE_ASSERT(
+ !XRE_IsParentProcess() || NS_IsMainThread(),
+ "In the parent process, profiles should only be generated from the main "
+ "thread, otherwise they will be incomplete.");
+
+ ProfileGenerationAdditionalInformation additionalInfo;
+ MOZ_TRY_VAR(additionalInfo, do_profiler_stream_json_for_this_process(
+ aWriter, aSinceTime, aIsShuttingDown,
+ aService, std::move(aProgressLogger)));
+
+ return additionalInfo;
+}
+
+// END saving/streaming code
+////////////////////////////////////////////////////////////////////////
+
+static char FeatureCategory(uint32_t aFeature) {
+ if (aFeature & DefaultFeatures()) {
+ if (aFeature & AvailableFeatures()) {
+ return 'D';
+ }
+ return 'd';
+ }
+
+ if (aFeature & StartupExtraDefaultFeatures()) {
+ if (aFeature & AvailableFeatures()) {
+ return 'S';
+ }
+ return 's';
+ }
+
+ if (aFeature & AvailableFeatures()) {
+ return '-';
+ }
+ return 'x';
+}
+
+static void PrintUsage() {
+ MOZ_RELEASE_ASSERT(NS_IsMainThread());
+
+ printf(
+ "\n"
+ "Profiler environment variable usage:\n"
+ "\n"
+ " MOZ_PROFILER_HELP\n"
+ " If set to any value, prints this message.\n"
+ " Use MOZ_BASE_PROFILER_HELP for BaseProfiler help.\n"
+ "\n"
+ " MOZ_LOG\n"
+ " Enables logging. The levels of logging available are\n"
+ " 'prof:3' (least verbose), 'prof:4', 'prof:5' (most verbose).\n"
+ "\n"
+ " MOZ_PROFILER_STARTUP\n"
+ " If set to any value other than '' or '0'/'N'/'n', starts the\n"
+ " profiler immediately on start-up.\n"
+ " Useful if you want profile code that runs very early.\n"
+ "\n"
+ " MOZ_PROFILER_STARTUP_ENTRIES=<%u..%u>\n"
+ " If MOZ_PROFILER_STARTUP is set, specifies the number of entries per\n"
+ " process in the profiler's circular buffer when the profiler is first\n"
+ " started.\n"
+ " If unset, the platform default is used:\n"
+ " %u entries per process, or %u when MOZ_PROFILER_STARTUP is set.\n"
+ " (%u bytes per entry -> %u or %u total bytes per process)\n"
+ " Optional units in bytes: KB, KiB, MB, MiB, GB, GiB\n"
+ "\n"
+ " MOZ_PROFILER_STARTUP_DURATION=<1..>\n"
+ " If MOZ_PROFILER_STARTUP is set, specifies the maximum life time of\n"
+ " entries in the the profiler's circular buffer when the profiler is\n"
+ " first started, in seconds.\n"
+ " If unset, the life time of the entries will only be restricted by\n"
+ " MOZ_PROFILER_STARTUP_ENTRIES (or its default value), and no\n"
+ " additional time duration restriction will be applied.\n"
+ "\n"
+ " MOZ_PROFILER_STARTUP_INTERVAL=<1..%d>\n"
+ " If MOZ_PROFILER_STARTUP is set, specifies the sample interval,\n"
+ " measured in milliseconds, when the profiler is first started.\n"
+ " If unset, the platform default is used.\n"
+ "\n"
+ " MOZ_PROFILER_STARTUP_FEATURES_BITFIELD=<Number>\n"
+ " If MOZ_PROFILER_STARTUP is set, specifies the profiling features, as\n"
+ " the integer value of the features bitfield.\n"
+ " If unset, the value from MOZ_PROFILER_STARTUP_FEATURES is used.\n"
+ "\n"
+ " MOZ_PROFILER_STARTUP_FEATURES=<Features>\n"
+ " If MOZ_PROFILER_STARTUP is set, specifies the profiling features, as\n"
+ " a comma-separated list of strings.\n"
+ " Ignored if MOZ_PROFILER_STARTUP_FEATURES_BITFIELD is set.\n"
+ " If unset, the platform default is used.\n"
+ "\n"
+ " Features: (x=unavailable, D/d=default/unavailable,\n"
+ " S/s=MOZ_PROFILER_STARTUP extra default/unavailable)\n",
+ unsigned(ActivePS::scMinimumBufferEntries),
+ unsigned(ActivePS::scMaximumBufferEntries),
+ unsigned(PROFILER_DEFAULT_ENTRIES.Value()),
+ unsigned(PROFILER_DEFAULT_STARTUP_ENTRIES.Value()),
+ unsigned(scBytesPerEntry),
+ unsigned(PROFILER_DEFAULT_ENTRIES.Value() * scBytesPerEntry),
+ unsigned(PROFILER_DEFAULT_STARTUP_ENTRIES.Value() * scBytesPerEntry),
+ PROFILER_MAX_INTERVAL);
+
+#define PRINT_FEATURE(n_, str_, Name_, desc_) \
+ printf(" %c %7u: \"%s\" (%s)\n", FeatureCategory(ProfilerFeature::Name_), \
+ ProfilerFeature::Name_, str_, desc_);
+
+ PROFILER_FOR_EACH_FEATURE(PRINT_FEATURE)
+
+#undef PRINT_FEATURE
+
+ printf(
+ " - \"default\" (All above D+S defaults)\n"
+ "\n"
+ " MOZ_PROFILER_STARTUP_FILTERS=<Filters>\n"
+ " If MOZ_PROFILER_STARTUP is set, specifies the thread filters, as a\n"
+ " comma-separated list of strings. A given thread will be sampled if\n"
+ " any of the filters is a case-insensitive substring of the thread\n"
+ " name. If unset, a default is used.\n"
+ "\n"
+ " MOZ_PROFILER_STARTUP_ACTIVE_TAB_ID=<Number>\n"
+ " This variable is used to propagate the activeTabID of\n"
+ " the profiler init params to subprocesses.\n"
+ "\n"
+ " MOZ_PROFILER_SHUTDOWN=<Filename>\n"
+ " If set, the profiler saves a profile to the named file on shutdown.\n"
+ " If the Filename contains \"%%p\", this will be replaced with the'\n"
+ " process id of the parent process.\n"
+ "\n"
+ " MOZ_PROFILER_SYMBOLICATE\n"
+ " If set, the profiler will pre-symbolicate profiles.\n"
+ " *Note* This will add a significant pause when gathering data, and\n"
+ " is intended mainly for local development.\n"
+ "\n"
+ " MOZ_PROFILER_LUL_TEST\n"
+ " If set to any value, runs LUL unit tests at startup.\n"
+ "\n"
+ " This platform %s native unwinding.\n"
+ "\n",
+#if defined(HAVE_NATIVE_UNWIND)
+ "supports"
+#else
+ "does not support"
+#endif
+ );
+}
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN Sampler
+
+#if defined(GP_OS_linux) || defined(GP_OS_android)
+struct SigHandlerCoordinator;
+#endif
+
+// Sampler performs setup and teardown of the state required to sample with the
+// profiler. Sampler may exist when ActivePS is not present.
+//
+// SuspendAndSampleAndResumeThread must only be called from a single thread,
+// and must not sample the thread it is being called from. A separate Sampler
+// instance must be used for each thread which wants to capture samples.
+
+// WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+//
+// With the exception of SamplerThread, all Sampler objects must be Disable-d
+// before releasing the lock which was used to create them. This avoids races
+// on linux with the SIGPROF signal handler.
+
+class Sampler {
+ public:
+ // Sets up the profiler such that it can begin sampling.
+ explicit Sampler(PSLockRef aLock);
+
+ // Disable the sampler, restoring it to its previous state. This must be
+ // called once, and only once, before the Sampler is destroyed.
+ void Disable(PSLockRef aLock);
+
+ // This method suspends and resumes the samplee thread. It calls the passed-in
+ // function-like object aProcessRegs (passing it a populated |const
+ // Registers&| arg) while the samplee thread is suspended. Note that
+ // the aProcessRegs function must be very careful not to do anything that
+ // requires a lock, since we may have interrupted the thread at any point.
+ // As an example, you can't call TimeStamp::Now() since on windows it
+ // takes a lock on the performance counter.
+ //
+ // Func must be a function-like object of type `void()`.
+ template <typename Func>
+ void SuspendAndSampleAndResumeThread(
+ PSLockRef aLock,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ const TimeStamp& aNow, const Func& aProcessRegs);
+
+ private:
+#if defined(GP_OS_linux) || defined(GP_OS_android) || defined(GP_OS_freebsd)
+ // Used to restore the SIGPROF handler when ours is removed.
+ struct sigaction mOldSigprofHandler;
+
+ // This process' ID. Needed as an argument for tgkill in
+ // SuspendAndSampleAndResumeThread.
+ ProfilerProcessId mMyPid;
+
+ // The sampler thread's ID. Used to assert that it is not sampling itself,
+ // which would lead to deadlock.
+ ProfilerThreadId mSamplerTid;
+
+ public:
+ // This is the one-and-only variable used to communicate between the sampler
+ // thread and the samplee thread's signal handler. It's static because the
+ // samplee thread's signal handler is static.
+ static struct SigHandlerCoordinator* sSigHandlerCoordinator;
+#endif
+};
+
+// END Sampler
+////////////////////////////////////////////////////////////////////////
+
+// Platform-specific function that retrieves per-thread CPU measurements.
+static RunningTimes GetThreadRunningTimesDiff(
+ PSLockRef aLock,
+ ThreadRegistration::UnlockedRWForLockedProfiler& aThreadData);
+// Platform-specific function that *may* discard CPU measurements since the
+// previous call to GetThreadRunningTimesDiff, if the way to suspend threads on
+// this platform may add running times to that thread.
+// No-op otherwise, if suspending a thread doesn't make it work.
+static void DiscardSuspendedThreadRunningTimes(
+ PSLockRef aLock,
+ ThreadRegistration::UnlockedRWForLockedProfiler& aThreadData);
+
+// Platform-specific function that retrieves process CPU measurements.
+static RunningTimes GetProcessRunningTimesDiff(
+ PSLockRef aLock, RunningTimes& aPreviousRunningTimesToBeUpdated);
+
+// Template function to be used by `GetThreadRunningTimesDiff()` (unless some
+// platform has a better way to achieve this).
+// It help perform CPU measurements and tie them to a timestamp, such that the
+// measurements and timestamp are very close together.
+// This is necessary, because the relative CPU usage is computed by dividing
+// consecutive CPU measurements by their timestamp difference; if there was an
+// unexpected big gap, it could skew this computation and produce impossible
+// spikes that would hide the rest of the data. See bug 1685938 for more info.
+// Note that this may call the measurement function more than once; it is
+// assumed to normally be fast.
+// This was verified experimentally, but there is currently no regression
+// testing for it; see follow-up bug 1687402.
+template <typename GetCPURunningTimesFunction>
+RunningTimes GetRunningTimesWithTightTimestamp(
+ GetCPURunningTimesFunction&& aGetCPURunningTimesFunction) {
+ // Once per process, compute a threshold over which running times and their
+ // timestamp is considered too far apart.
+ static const TimeDuration scMaxRunningTimesReadDuration = [&]() {
+ // Run the main CPU measurements + timestamp a number of times and capture
+ // their durations.
+ constexpr int loops = 128;
+ TimeDuration durations[loops];
+ RunningTimes runningTimes;
+ TimeStamp before = TimeStamp::Now();
+ for (int i = 0; i < loops; ++i) {
+ AUTO_PROFILER_STATS(GetRunningTimes_MaxRunningTimesReadDuration);
+ aGetCPURunningTimesFunction(runningTimes);
+ const TimeStamp after = TimeStamp::Now();
+ durations[i] = after - before;
+ before = after;
+ }
+ // Move median duration to the middle.
+ std::nth_element(&durations[0], &durations[loops / 2], &durations[loops]);
+ // Use median*8 as cut-off point.
+ // Typical durations should be around a microsecond, the cut-off should then
+ // be around 10 microseconds, well below the expected minimum inter-sample
+ // interval (observed as a few milliseconds), so overall this should keep
+ // cpu/interval spikes
+ return durations[loops / 2] * 8;
+ }();
+
+ // Record CPU measurements between two timestamps.
+ RunningTimes runningTimes;
+ TimeStamp before = TimeStamp::Now();
+ aGetCPURunningTimesFunction(runningTimes);
+ TimeStamp after = TimeStamp::Now();
+ const TimeDuration duration = after - before;
+
+ // In most cases, the above should be quick enough. But if not (e.g., because
+ // of an OS context switch), repeat once:
+ if (MOZ_UNLIKELY(duration > scMaxRunningTimesReadDuration)) {
+ AUTO_PROFILER_STATS(GetRunningTimes_REDO);
+ RunningTimes runningTimes2;
+ aGetCPURunningTimesFunction(runningTimes2);
+ TimeStamp after2 = TimeStamp::Now();
+ const TimeDuration duration2 = after2 - after;
+ if (duration2 < duration) {
+ // We did it faster, use the new results. (But it could still be slower
+ // than expected, see note below for why it's acceptable.)
+ // This must stay *after* the CPU measurements.
+ runningTimes2.SetPostMeasurementTimeStamp(after2);
+ return runningTimes2;
+ }
+ // Otherwise use the initial results, they were slow, but faster than the
+ // second attempt.
+ // This means that something bad happened twice in a row on the same thread!
+ // So trying more times would be unlikely to get much better, and would be
+ // more expensive than the precision is worth.
+ // At worst, it means that a spike of activity may be reported in the next
+ // time slice. But in the end, the cumulative work is conserved, so it
+ // should still be visible at about the correct time in the graph.
+ AUTO_PROFILER_STATS(GetRunningTimes_RedoWasWorse);
+ }
+
+ // This must stay *after* the CPU measurements.
+ runningTimes.SetPostMeasurementTimeStamp(after);
+
+ return runningTimes;
+}
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN SamplerThread
+
+// The sampler thread controls sampling and runs whenever the profiler is
+// active. It periodically runs through all registered threads, finds those
+// that should be sampled, then pauses and samples them.
+
+class SamplerThread {
+ public:
+ // Creates a sampler thread, but doesn't start it.
+ SamplerThread(PSLockRef aLock, uint32_t aActivityGeneration,
+ double aIntervalMilliseconds, uint32_t aFeatures);
+ ~SamplerThread();
+
+ // This runs on (is!) the sampler thread.
+ void Run();
+
+#if defined(GP_OS_windows)
+ // This runs on (is!) the thread to spy on unregistered threads.
+ void RunUnregisteredThreadSpy();
+#endif
+
+ // This runs on the main thread.
+ void Stop(PSLockRef aLock);
+
+ void AppendPostSamplingCallback(PSLockRef, PostSamplingCallback&& aCallback) {
+ // We are under lock, so it's safe to just modify the list pointer.
+ // Also this means the sampler has not started its run yet, so any callback
+ // added now will be invoked at the end of the next loop; this guarantees
+ // that the callback will be invoked after at least one full sampling loop.
+ mPostSamplingCallbackList = MakeUnique<PostSamplingCallbackListItem>(
+ std::move(mPostSamplingCallbackList), std::move(aCallback));
+ }
+
+ private:
+ void SpyOnUnregisteredThreads();
+
+ // Item containing a post-sampling callback, and a tail-list of more items.
+ // Using a linked list means no need to move items when adding more, and
+ // "stealing" the whole list is one pointer move.
+ struct PostSamplingCallbackListItem {
+ UniquePtr<PostSamplingCallbackListItem> mPrev;
+ PostSamplingCallback mCallback;
+
+ PostSamplingCallbackListItem(UniquePtr<PostSamplingCallbackListItem> aPrev,
+ PostSamplingCallback&& aCallback)
+ : mPrev(std::move(aPrev)), mCallback(std::move(aCallback)) {}
+ };
+
+ [[nodiscard]] UniquePtr<PostSamplingCallbackListItem>
+ TakePostSamplingCallbacks(PSLockRef) {
+ return std::move(mPostSamplingCallbackList);
+ }
+
+ static void InvokePostSamplingCallbacks(
+ UniquePtr<PostSamplingCallbackListItem> aCallbacks,
+ SamplingState aSamplingState) {
+ if (!aCallbacks) {
+ return;
+ }
+ // We want to drill down to the last element in this list, which is the
+ // oldest one, so that we invoke them in FIFO order.
+ // We don't expect many callbacks, so it's safe to recurse. Note that we're
+ // moving-from the UniquePtr, so the tail will implicitly get destroyed.
+ InvokePostSamplingCallbacks(std::move(aCallbacks->mPrev), aSamplingState);
+ // We are going to destroy this item, so we can safely move-from the
+ // callback before calling it (in case it has an rvalue-ref-qualified call
+ // operator).
+ std::move(aCallbacks->mCallback)(aSamplingState);
+ // It may be tempting for a future maintainer to change aCallbacks into an
+ // rvalue reference; this will remind them not to do that!
+ static_assert(
+ std::is_same_v<decltype(aCallbacks),
+ UniquePtr<PostSamplingCallbackListItem>>,
+ "We need to capture the list by-value, to implicitly destroy it");
+ }
+
+ // This suspends the calling thread for the given number of microseconds.
+ // Best effort timing.
+ void SleepMicro(uint32_t aMicroseconds);
+
+ // The sampler used to suspend and sample threads.
+ Sampler mSampler;
+
+ // The activity generation, for detecting when the sampler thread must stop.
+ const uint32_t mActivityGeneration;
+
+ // The interval between samples, measured in microseconds.
+ const int mIntervalMicroseconds;
+
+ // The OS-specific handle for the sampler thread.
+#if defined(GP_OS_windows)
+ HANDLE mThread;
+ HANDLE mUnregisteredThreadSpyThread = nullptr;
+ enum class SpyingState {
+ NoSpying,
+ Spy_Initializing,
+ // Spy is waiting for SamplerToSpy_Start or MainToSpy_Shutdown.
+ Spy_Waiting,
+ // Sampler requests spy to start working. May be pre-empted by
+ // MainToSpy_Shutdown.
+ SamplerToSpy_Start,
+ // Spy is currently working, cannot be interrupted, only the spy is allowed
+ // to change the state again.
+ Spy_Working,
+ // Main control requests spy to shut down.
+ MainToSpy_Shutdown,
+ // Spy notified main control that it's out of the loop, about to exit.
+ SpyToMain_ShuttingDown
+ };
+ SpyingState mSpyingState = SpyingState::NoSpying;
+ // The sampler will increment this while the spy is working, then while the
+ // spy is waiting the sampler will decrement it until <=0 before starting the
+ // spy. This will ensure that the work doesn't take more than 50% of a CPU
+ // core.
+ int mDelaySpyStart = 0;
+ Monitor mSpyingStateMonitor MOZ_UNANNOTATED{
+ "SamplerThread::mSpyingStateMonitor"};
+#elif defined(GP_OS_darwin) || defined(GP_OS_linux) || \
+ defined(GP_OS_android) || defined(GP_OS_freebsd)
+ pthread_t mThread;
+#endif
+
+ // Post-sampling callbacks are kept in a simple linked list, which will be
+ // stolen by the sampler thread at the end of its next run.
+ UniquePtr<PostSamplingCallbackListItem> mPostSamplingCallbackList;
+
+#if defined(GP_OS_windows)
+ bool mNoTimerResolutionChange = true;
+#endif
+
+ struct SpiedThread {
+ base::ProcessId mThreadId;
+ nsCString mName;
+ uint64_t mCPUTimeNs;
+
+ SpiedThread(base::ProcessId aThreadId, const nsACString& aName,
+ uint64_t aCPUTimeNs)
+ : mThreadId(aThreadId), mName(aName), mCPUTimeNs(aCPUTimeNs) {}
+
+ // Comparisons with just a thread id, for easy searching in an array.
+ friend bool operator==(const SpiedThread& aSpiedThread,
+ base::ProcessId aThreadId) {
+ return aSpiedThread.mThreadId == aThreadId;
+ }
+ friend bool operator==(base::ProcessId aThreadId,
+ const SpiedThread& aSpiedThread) {
+ return aThreadId == aSpiedThread.mThreadId;
+ }
+ };
+
+ // Time at which mSpiedThreads was previously updated. Null before 1st update.
+ TimeStamp mLastSpying;
+ // Unregistered threads that have been found, and are being spied on.
+ using SpiedThreads = AutoTArray<SpiedThread, 128>;
+ SpiedThreads mSpiedThreads;
+
+ SamplerThread(const SamplerThread&) = delete;
+ void operator=(const SamplerThread&) = delete;
+};
+
+// [[nodiscard]] static
+bool ActivePS::AppendPostSamplingCallback(PSLockRef aLock,
+ PostSamplingCallback&& aCallback) {
+ if (!sInstance || !sInstance->mSamplerThread) {
+ return false;
+ }
+ sInstance->mSamplerThread->AppendPostSamplingCallback(aLock,
+ std::move(aCallback));
+ return true;
+}
+
+// This function is required because we need to create a SamplerThread within
+// ActivePS's constructor, but SamplerThread is defined after ActivePS. It
+// could probably be removed by moving some code around.
+static SamplerThread* NewSamplerThread(PSLockRef aLock, uint32_t aGeneration,
+ double aInterval, uint32_t aFeatures) {
+ return new SamplerThread(aLock, aGeneration, aInterval, aFeatures);
+}
+
+// This function is the sampler thread. This implementation is used for all
+// targets.
+void SamplerThread::Run() {
+ PR_SetCurrentThreadName("SamplerThread");
+
+ // Features won't change during this SamplerThread's lifetime, so we can read
+ // them once and store them locally.
+ const uint32_t features = []() -> uint32_t {
+ PSAutoLock lock;
+ if (!ActivePS::Exists(lock)) {
+ // If there is no active profiler, it doesn't matter what we return,
+ // because this thread will exit before any feature is used.
+ return 0;
+ }
+ return ActivePS::Features(lock);
+ }();
+
+ // Not *no*-stack-sampling means we do want stack sampling.
+ const bool stackSampling = !ProfilerFeature::HasNoStackSampling(features);
+
+ const bool cpuUtilization = ProfilerFeature::HasCPUUtilization(features);
+
+ // Use local ProfileBuffer and underlying buffer to capture the stack.
+ // (This is to avoid touching the core buffer lock while a thread is
+ // suspended, because that thread could be working with the core buffer as
+ // well.
+ mozilla::ProfileBufferChunkManagerSingle localChunkManager(
+ ProfileBufferChunkManager::scExpectedMaximumStackSize);
+ ProfileChunkedBuffer localBuffer(
+ ProfileChunkedBuffer::ThreadSafety::WithoutMutex, localChunkManager);
+ ProfileBuffer localProfileBuffer(localBuffer);
+
+ // Will be kept between collections, to know what each collection does.
+ auto previousState = localBuffer.GetState();
+
+ // This will be filled at every loop, to be used by the next loop to compute
+ // the CPU utilization between samples.
+ RunningTimes processRunningTimes;
+
+ // This will be set inside the loop, from inside the lock scope, to capture
+ // all callbacks added before that, but none after the lock is released.
+ UniquePtr<PostSamplingCallbackListItem> postSamplingCallbacks;
+ // This will be set inside the loop, before invoking callbacks outside.
+ SamplingState samplingState{};
+
+ const TimeDuration sampleInterval =
+ TimeDuration::FromMicroseconds(mIntervalMicroseconds);
+ const uint32_t minimumIntervalSleepUs =
+ static_cast<uint32_t>(mIntervalMicroseconds / 4);
+
+ // This is the scheduled time at which each sampling loop should start.
+ // It will determine the ideal next sampling start by adding the expected
+ // interval, unless when sampling runs late -- See end of while() loop.
+ TimeStamp scheduledSampleStart = TimeStamp::Now();
+
+ while (true) {
+ const TimeStamp sampleStart = TimeStamp::Now();
+
+ // This scope is for |lock|. It ends before we sleep below.
+ {
+ // There should be no local callbacks left from a previous loop.
+ MOZ_ASSERT(!postSamplingCallbacks);
+
+ PSAutoLock lock;
+ TimeStamp lockAcquired = TimeStamp::Now();
+
+ // Move all the post-sampling callbacks locally, so that new ones cannot
+ // sneak in between the end of the lock scope and the invocation after it.
+ postSamplingCallbacks = TakePostSamplingCallbacks(lock);
+
+ if (!ActivePS::Exists(lock)) {
+ // Exit the `while` loop, including the lock scope, before invoking
+ // callbacks and returning.
+ samplingState = SamplingState::JustStopped;
+ break;
+ }
+
+ // At this point profiler_stop() might have been called, and
+ // profiler_start() might have been called on another thread. If this
+ // happens the generation won't match.
+ if (ActivePS::Generation(lock) != mActivityGeneration) {
+ samplingState = SamplingState::JustStopped;
+ // Exit the `while` loop, including the lock scope, before invoking
+ // callbacks and returning.
+ break;
+ }
+
+ ActivePS::ClearExpiredExitProfiles(lock);
+
+ TimeStamp expiredMarkersCleaned = TimeStamp::Now();
+
+ if (int(gSkipSampling) <= 0 && !ActivePS::IsSamplingPaused(lock)) {
+ double sampleStartDeltaMs =
+ (sampleStart - CorePS::ProcessStartTime()).ToMilliseconds();
+ ProfileBuffer& buffer = ActivePS::Buffer(lock);
+
+ // Before sampling counters, update the process CPU counter if active.
+ if (ActivePS::ProcessCPUCounter* processCPUCounter =
+ ActivePS::MaybeProcessCPUCounter(lock);
+ processCPUCounter) {
+ RunningTimes processRunningTimesDiff =
+ GetProcessRunningTimesDiff(lock, processRunningTimes);
+ Maybe<uint64_t> cpu = processRunningTimesDiff.GetJsonThreadCPUDelta();
+ if (cpu) {
+ processCPUCounter->Add(static_cast<int64_t>(*cpu));
+ }
+ }
+
+ if (PowerCounters* powerCounters = ActivePS::MaybePowerCounters(lock);
+ powerCounters) {
+ powerCounters->Sample();
+ }
+
+ // handle per-process generic counters
+ const Vector<BaseProfilerCount*>& counters = CorePS::Counters(lock);
+ for (auto& counter : counters) {
+ if (auto sample = counter->Sample(); sample.isSampleNew) {
+ // create Buffer entries for each counter
+ buffer.AddEntry(ProfileBufferEntry::CounterId(counter));
+ buffer.AddEntry(ProfileBufferEntry::Time(sampleStartDeltaMs));
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ if (ActivePS::IsMemoryCounter(counter)) {
+ // For the memory counter, substract the size of our buffer to
+ // avoid giving the misleading impression that the memory use
+ // keeps on growing when it's just the profiler session that's
+ // using a larger buffer as it gets longer.
+ sample.count -= static_cast<int64_t>(
+ ActivePS::ControlledChunkManager(lock).TotalSize());
+ }
+#endif
+ // In the future, we may support keyed counters - for example,
+ // counters with a key which is a thread ID. For "simple" counters
+ // we'll just use a key of 0.
+ buffer.AddEntry(ProfileBufferEntry::CounterKey(0));
+ buffer.AddEntry(ProfileBufferEntry::Count(sample.count));
+ if (sample.number) {
+ buffer.AddEntry(ProfileBufferEntry::Number(sample.number));
+ }
+ }
+ }
+ TimeStamp countersSampled = TimeStamp::Now();
+
+ if (stackSampling || cpuUtilization) {
+ samplingState = SamplingState::SamplingCompleted;
+
+ // Prevent threads from ending (or starting) and allow access to all
+ // OffThreadRef's.
+ ThreadRegistry::LockedRegistry lockedRegistry;
+
+ for (ThreadRegistry::OffThreadRef offThreadRef : lockedRegistry) {
+ ThreadRegistration::UnlockedRWForLockedProfiler&
+ unlockedThreadData =
+ offThreadRef.UnlockedRWForLockedProfilerRef();
+ ProfiledThreadData* profiledThreadData =
+ unlockedThreadData.GetProfiledThreadData(lock);
+ if (!profiledThreadData) {
+ // This thread is not being profiled, continue with the next one.
+ continue;
+ }
+
+ const ThreadProfilingFeatures whatToProfile =
+ unlockedThreadData.ProfilingFeatures();
+ const bool threadCPUUtilization =
+ cpuUtilization &&
+ DoFeaturesIntersect(whatToProfile,
+ ThreadProfilingFeatures::CPUUtilization);
+ const bool threadStackSampling =
+ stackSampling &&
+ DoFeaturesIntersect(whatToProfile,
+ ThreadProfilingFeatures::Sampling);
+ if (!threadCPUUtilization && !threadStackSampling) {
+ // Nothing to profile on this thread, continue with the next one.
+ continue;
+ }
+
+ const ProfilerThreadId threadId =
+ unlockedThreadData.Info().ThreadId();
+
+ const RunningTimes runningTimesDiff = [&]() {
+ if (!threadCPUUtilization) {
+ // If we don't need CPU measurements, we only need a timestamp.
+ return RunningTimes(TimeStamp::Now());
+ }
+ return GetThreadRunningTimesDiff(lock, unlockedThreadData);
+ }();
+
+ const TimeStamp& now = runningTimesDiff.PostMeasurementTimeStamp();
+ double threadSampleDeltaMs =
+ (now - CorePS::ProcessStartTime()).ToMilliseconds();
+
+ // If the thread is asleep and has been sampled before in the same
+ // sleep episode, or otherwise(*) if there was zero CPU activity
+ // since the previous sampling, find and copy the previous sample,
+ // as that's cheaper than taking a new sample.
+ // (*) Tech note: The asleep check is done first and always, because
+ // it is more reliable, and knows if it's the first asleep
+ // sample, which cannot be duplicated; if the test was the other
+ // way around, it could find zero CPU and then short-circuit
+ // that state-changing second-asleep-check operation, which
+ // could result in an unneeded sample.
+ // However we're using current running times (instead of copying the
+ // old ones) because some work could have happened.
+ if (threadStackSampling &&
+ (unlockedThreadData.CanDuplicateLastSampleDueToSleep() ||
+ runningTimesDiff.GetThreadCPUDelta() == Some(uint64_t(0)))) {
+ const bool dup_ok = ActivePS::Buffer(lock).DuplicateLastSample(
+ threadId, threadSampleDeltaMs,
+ profiledThreadData->LastSample(), runningTimesDiff);
+ if (dup_ok) {
+ continue;
+ }
+ }
+
+ AUTO_PROFILER_STATS(gecko_SamplerThread_Run_DoPeriodicSample);
+
+ // Record the global profiler buffer's range start now, before
+ // adding the first entry for this thread's sample.
+ const uint64_t bufferRangeStart = buffer.BufferRangeStart();
+
+ // Add the thread ID now, so we know its position in the main
+ // buffer, which is used by some JS data.
+ // (DoPeriodicSample only knows about the temporary local buffer.)
+ const uint64_t samplePos = buffer.AddThreadIdEntry(threadId);
+ profiledThreadData->LastSample() = Some(samplePos);
+
+ // Also add the time, so it's always there after the thread ID, as
+ // expected by the parser. (Other stack data is optional.)
+ buffer.AddEntry(ProfileBufferEntry::TimeBeforeCompactStack(
+ threadSampleDeltaMs));
+
+ Maybe<double> unresponsiveDuration_ms;
+
+ // If we have RunningTimes data, store it before the CompactStack.
+ // Note: It is not stored inside the CompactStack so that it doesn't
+ // get incorrectly duplicated when the thread is sleeping.
+ if (!runningTimesDiff.IsEmpty()) {
+ profiler_get_core_buffer().PutObjects(
+ ProfileBufferEntry::Kind::RunningTimes, runningTimesDiff);
+ }
+
+ if (threadStackSampling) {
+ ThreadRegistry::OffThreadRef::RWFromAnyThreadWithLock
+ lockedThreadData = offThreadRef.GetLockedRWFromAnyThread();
+ // Suspend the thread and collect its stack data in the local
+ // buffer.
+ mSampler.SuspendAndSampleAndResumeThread(
+ lock, lockedThreadData.DataCRef(), now,
+ [&](const Registers& aRegs, const TimeStamp& aNow) {
+ DoPeriodicSample(lock, lockedThreadData.DataCRef(), aRegs,
+ samplePos, bufferRangeStart,
+ localProfileBuffer);
+
+ // For "eventDelay", we want the input delay - but if
+ // there are no events in the input queue (or even if there
+ // are), we're interested in how long the delay *would* be
+ // for an input event now, which would be the time to finish
+ // the current event + the delay caused by any events
+ // already in the input queue (plus any High priority
+ // events). Events at lower priorities (in a
+ // PrioritizedEventQueue) than Input count for input delay
+ // only for the duration that they're running, since when
+ // they finish, any queued input event would run.
+ //
+ // Unless we record the time state of all events and queue
+ // states at all times, this is hard to precisely calculate,
+ // but we can approximate it well in post-processing with
+ // RunningEventDelay and RunningEventStart.
+ //
+ // RunningEventDelay is the time duration the event was
+ // queued before starting execution. RunningEventStart is
+ // the time the event started. (Note: since we care about
+ // Input event delays on MainThread, for
+ // PrioritizedEventQueues we return 0 for RunningEventDelay
+ // if the currently running event has a lower priority than
+ // Input (since Input events won't queue behind them).
+ //
+ // To directly measure this we would need to record the time
+ // at which the newest event currently in each queue at time
+ // X (the sample time) finishes running. This of course
+ // would require looking into the future, or recording all
+ // this state and then post-processing it later. If we were
+ // to trace every event start and end we could do this, but
+ // it would have significant overhead to do so (and buffer
+ // usage). From a recording of RunningEventDelays and
+ // RunningEventStarts we can infer the actual delay:
+ //
+ // clang-format off
+ // Event queue: <tail> D : C : B : A <head>
+ // Time inserted (ms): 40 : 20 : 10 : 0
+ // Run Time (ms): 30 : 100 : 40 : 30
+ //
+ // 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
+ // [A||||||||||||]
+ // ----------[B|||||||||||||||||]
+ // -------------------------[C|||||||||||||||||||||||||||||||||||||||||||||||]
+ // -----------------------------------------------------------------[D|||||||||...]
+ //
+ // Calculate the delay of a new event added at time t: (run every sample)
+ // TimeSinceRunningEventBlockedInputEvents = RunningEventDelay + (now - RunningEventStart);
+ // effective_submission = now - TimeSinceRunningEventBlockedInputEvents;
+ // delta = (now - last_sample_time);
+ // last_sample_time = now;
+ // for (t=effective_submission to now) {
+ // delay[t] += delta;
+ // }
+ //
+ // Can be reduced in overhead by:
+ // TimeSinceRunningEventBlockedInputEvents = RunningEventDelay + (now - RunningEventStart);
+ // effective_submission = now - TimeSinceRunningEventBlockedInputEvents;
+ // if (effective_submission != last_submission) {
+ // delta = (now - last_submision);
+ // // this loop should be made to match each sample point in the range
+ // // intead of assuming 1ms sampling as this pseudocode does
+ // for (t=last_submission to effective_submission-1) {
+ // delay[t] += delta;
+ // delta -= 1; // assumes 1ms; adjust as needed to match for()
+ // }
+ // last_submission = effective_submission;
+ // }
+ //
+ // Time Head of queue Running Event RunningEventDelay Delay of Effective Started Calc (submission->now add 10ms) Final
+ // hypothetical Submission Running @ result
+ // event E
+ // 0 Empty A 0 30 0 0 @0=10 30
+ // 10 B A 0 60 0 0 @0=20, @10=10 60
+ // 20 B A 0 150 0 0 @0=30, @10=20, @20=10 150
+ // 30 C B 20 140 10 30 @10=20, @20=10, @30=0 140
+ // 40 C B 20 160 @10=30, @20=20... 160
+ // 50 C B 20 150 150
+ // 60 C B 20 140 @10=50, @20=40... 140
+ // 70 D C 50 130 20 70 @20=50, @30=40... 130
+ // ...
+ // 160 D C 50 40 @20=140, @30=130... 40
+ // 170 <empty> D 140 30 40 @40=140, @50=130... (rounding) 30
+ // 180 <empty> D 140 20 40 @40=150 20
+ // 190 <empty> D 140 10 40 @40=160 10
+ // 200 <empty> <empty> 0 0 NA 0
+ //
+ // Function Delay(t) = the time between t and the time at which a hypothetical
+ // event e would start executing, if e was enqueued at time t.
+ //
+ // Delay(-1) = 0 // Before A was enqueued. No wait time, can start running
+ // // instantly.
+ // Delay(0) = 30 // The hypothetical event e got enqueued just after A got
+ // // enqueued. It can start running at 30, when A is done.
+ // Delay(5) = 25
+ // Delay(10) = 60 // Can start running at 70, after both A and B are done.
+ // Delay(19) = 51
+ // Delay(20) = 150 // Can start running at 170, after A, B & C.
+ // Delay(25) = 145
+ // Delay(30) = 170 // Can start running at 200, after A, B, C & D.
+ // Delay(120) = 80
+ // Delay(200) = 0 // (assuming nothing was enqueued after D)
+ //
+ // For every event that gets enqueued, the Delay time will go up by the
+ // event's running time at the time at which the event is enqueued.
+ // The Delay function will be a sawtooth of the following shape:
+ //
+ // |\ |...
+ // | \ |
+ // |\ | \ |
+ // | \ | \ |
+ // |\ | \ | \ |
+ // |\ | \| \| \ |
+ // | \| \ |
+ // _| \____|
+ //
+ //
+ // A more complex example with a PrioritizedEventQueue:
+ //
+ // Event queue: <tail> D : C : B : A <head>
+ // Time inserted (ms): 40 : 20 : 10 : 0
+ // Run Time (ms): 30 : 100 : 40 : 30
+ // Priority: Input: Norm: Norm: Norm
+ //
+ // 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
+ // [A||||||||||||]
+ // ----------[B|||||||||||||||||]
+ // ----------------------------------------[C|||||||||||||||||||||||||||||||||||||||||||||||]
+ // ---------------[D||||||||||||]
+ //
+ //
+ // Time Head of queue Running Event RunningEventDelay Delay of Effective Started Calc (submission->now add 10ms) Final
+ // hypothetical Submission Running @ result
+ // event
+ // 0 Empty A 0 30 0 0 @0=10 30
+ // 10 B A 0 20 0 0 @0=20, @10=10 20
+ // 20 B A 0 10 0 0 @0=30, @10=20, @20=10 10
+ // 30 C B 0 40 30 30 @30=10 40
+ // 40 C B 0 60 30 @40=10, @30=20 60
+ // 50 C B 0 50 30 @50=10, @40=20, @30=30 50
+ // 60 C B 0 40 30 @60=10, @50=20, @40=30, @30=40 40
+ // 70 C D 30 30 40 70 @60=20, @50=30, @40=40 30
+ // 80 C D 30 20 40 70 ...@50=40, @40=50 20
+ // 90 C D 30 10 40 70 ...@60=40, @50=50, @40=60 10
+ // 100 <empty> C 0 100 100 100 @100=10 100
+ // 110 <empty> C 0 90 100 100 @110=10, @100=20 90
+
+ //
+ // For PrioritizedEventQueue, the definition of the Delay(t) function is adjusted: the hypothetical event e has Input priority.
+ // Delay(-1) = 0 // Before A was enqueued. No wait time, can start running
+ // // instantly.
+ // Delay(0) = 30 // The hypothetical input event e got enqueued just after A got
+ // // enqueued. It can start running at 30, when A is done.
+ // Delay(5) = 25
+ // Delay(10) = 20
+ // Delay(25) = 5 // B has been queued, but e does not need to wait for B because e has Input priority and B does not.
+ // // So e can start running at 30, when A is done.
+ // Delay(30) = 40 // Can start running at 70, after B is done.
+ // Delay(40) = 60 // Can start at 100, after B and D are done (D is Input Priority)
+ // Delay(80) = 20
+ // Delay(100) = 100 // Wait for C to finish
+
+ // clang-format on
+ //
+ // Alternatively we could insert (recycled instead of
+ // allocated/freed) input events at every sample period
+ // (1ms...), and use them to back-calculate the delay. This
+ // might also be somewhat expensive, and would require
+ // guessing at the maximum delay, which would likely be in
+ // the seconds, and so you'd need 1000's of pre-allocated
+ // events per queue per thread - so there would be a memory
+ // impact as well.
+
+ TimeDuration currentEventDelay;
+ TimeDuration currentEventRunning;
+ lockedThreadData->GetRunningEventDelay(
+ aNow, currentEventDelay, currentEventRunning);
+
+ // Note: eventDelay is a different definition of
+ // responsiveness than the 16ms event injection.
+
+ // Don't suppress 0's for now; that can be a future
+ // optimization. We probably want one zero to be stored
+ // before we start suppressing, which would be more
+ // complex.
+ unresponsiveDuration_ms =
+ Some(currentEventDelay.ToMilliseconds() +
+ currentEventRunning.ToMilliseconds());
+ });
+
+ if (cpuUtilization) {
+ // Suspending the thread for sampling could have added some
+ // running time to it, discard any since the call to
+ // GetThreadRunningTimesDiff above.
+ DiscardSuspendedThreadRunningTimes(lock, unlockedThreadData);
+ }
+
+ // If we got eventDelay data, store it before the CompactStack.
+ // Note: It is not stored inside the CompactStack so that it
+ // doesn't get incorrectly duplicated when the thread is sleeping.
+ if (unresponsiveDuration_ms.isSome()) {
+ profiler_get_core_buffer().PutObjects(
+ ProfileBufferEntry::Kind::UnresponsiveDurationMs,
+ *unresponsiveDuration_ms);
+ }
+ }
+
+ // There *must* be a CompactStack after a TimeBeforeCompactStack;
+ // but note that other entries may have been concurrently inserted
+ // between the TimeBeforeCompactStack above and now. If the captured
+ // sample from `DoPeriodicSample` is complete, copy it into the
+ // global buffer, otherwise add an empty one to satisfy the parser
+ // that expects one.
+ auto state = localBuffer.GetState();
+ if (NS_WARN_IF(state.mFailedPutBytes !=
+ previousState.mFailedPutBytes)) {
+ LOG("Stack sample too big for local storage, failed to store %u "
+ "bytes",
+ unsigned(state.mFailedPutBytes -
+ previousState.mFailedPutBytes));
+ // There *must* be a CompactStack after a TimeBeforeCompactStack,
+ // even an empty one.
+ profiler_get_core_buffer().PutObjects(
+ ProfileBufferEntry::Kind::CompactStack,
+ UniquePtr<ProfileChunkedBuffer>(nullptr));
+ } else if (state.mRangeEnd - previousState.mRangeEnd >=
+ *profiler_get_core_buffer().BufferLength()) {
+ LOG("Stack sample too big for profiler storage, needed %u bytes",
+ unsigned(state.mRangeEnd - previousState.mRangeEnd));
+ // There *must* be a CompactStack after a TimeBeforeCompactStack,
+ // even an empty one.
+ profiler_get_core_buffer().PutObjects(
+ ProfileBufferEntry::Kind::CompactStack,
+ UniquePtr<ProfileChunkedBuffer>(nullptr));
+ } else {
+ profiler_get_core_buffer().PutObjects(
+ ProfileBufferEntry::Kind::CompactStack, localBuffer);
+ }
+
+ // Clean up for the next run.
+ localBuffer.Clear();
+ previousState = localBuffer.GetState();
+ }
+ } else {
+ samplingState = SamplingState::NoStackSamplingCompleted;
+ }
+
+#if defined(USE_LUL_STACKWALK)
+ // The LUL unwind object accumulates frame statistics. Periodically we
+ // should poke it to give it a chance to print those statistics. This
+ // involves doing I/O (fprintf, __android_log_print, etc.) and so
+ // can't safely be done from the critical section inside
+ // SuspendAndSampleAndResumeThread, which is why it is done here.
+ lul::LUL* lul = CorePS::Lul();
+ if (lul) {
+ lul->MaybeShowStats();
+ }
+#endif
+ TimeStamp threadsSampled = TimeStamp::Now();
+
+ {
+ AUTO_PROFILER_STATS(Sampler_FulfillChunkRequests);
+ ActivePS::FulfillChunkRequests(lock);
+ }
+
+ buffer.CollectOverheadStats(sampleStartDeltaMs,
+ lockAcquired - sampleStart,
+ expiredMarkersCleaned - lockAcquired,
+ countersSampled - expiredMarkersCleaned,
+ threadsSampled - countersSampled);
+ } else {
+ samplingState = SamplingState::SamplingPaused;
+ }
+ }
+ // gPSMutex is not held after this point.
+
+ // Invoke end-of-sampling callbacks outside of the locked scope.
+ InvokePostSamplingCallbacks(std::move(postSamplingCallbacks),
+ samplingState);
+
+ ProfilerChild::ProcessPendingUpdate();
+
+ if (ProfilerFeature::HasUnregisteredThreads(features)) {
+#if defined(GP_OS_windows)
+ {
+ MonitorAutoLock spyingStateLock{mSpyingStateMonitor};
+ switch (mSpyingState) {
+ case SpyingState::SamplerToSpy_Start:
+ case SpyingState::Spy_Working:
+ // If the spy is working (or about to work), record this loop
+ // iteration to delay the next start.
+ ++mDelaySpyStart;
+ break;
+ case SpyingState::Spy_Waiting:
+ // The Spy is idle, waiting for instructions. Should we delay?
+ if (--mDelaySpyStart <= 0) {
+ mDelaySpyStart = 0;
+ mSpyingState = SpyingState::SamplerToSpy_Start;
+ mSpyingStateMonitor.NotifyAll();
+ }
+ break;
+ default:
+ // Otherwise the spy should be initializing or shutting down.
+ MOZ_ASSERT(mSpyingState == SpyingState::Spy_Initializing ||
+ mSpyingState == SpyingState::MainToSpy_Shutdown ||
+ mSpyingState == SpyingState::SpyToMain_ShuttingDown);
+ break;
+ }
+ }
+#else
+ // On non-Windows platforms, this is fast enough to run in this thread,
+ // each sampling loop.
+ SpyOnUnregisteredThreads();
+#endif
+ }
+
+ // We expect the next sampling loop to start `sampleInterval` after this
+ // loop here was scheduled to start.
+ scheduledSampleStart += sampleInterval;
+
+ // Try to sleep until we reach that next scheduled time.
+ const TimeStamp beforeSleep = TimeStamp::Now();
+ if (scheduledSampleStart >= beforeSleep) {
+ // There is still time before the next scheduled sample time.
+ const uint32_t sleepTimeUs = static_cast<uint32_t>(
+ (scheduledSampleStart - beforeSleep).ToMicroseconds());
+ if (sleepTimeUs >= minimumIntervalSleepUs) {
+ SleepMicro(sleepTimeUs);
+ } else {
+ // If we're too close to that time, sleep the minimum amount of time.
+ // Note that the next scheduled start is not shifted, so at the end of
+ // the next loop, sleep may again be adjusted to get closer to schedule.
+ SleepMicro(minimumIntervalSleepUs);
+ }
+ } else {
+ // This sampling loop ended after the next sampling should have started!
+ // There is little point to try and keep up to schedule now, it would
+ // require more work, while it's likely we're late because the system is
+ // already busy. Try and restart a normal schedule from now.
+ scheduledSampleStart = beforeSleep + sampleInterval;
+ SleepMicro(static_cast<uint32_t>(sampleInterval.ToMicroseconds()));
+ }
+ }
+
+ // End of `while` loop. We can only be here from a `break` inside the loop.
+ InvokePostSamplingCallbacks(std::move(postSamplingCallbacks), samplingState);
+}
+
+namespace geckoprofiler::markers {
+
+struct UnregisteredThreadLifetimeMarker {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("UnregisteredThreadLifetime");
+ }
+ static void StreamJSONMarkerData(baseprofiler::SpliceableJSONWriter& aWriter,
+ base::ProcessId aThreadId,
+ const ProfilerString8View& aName,
+ const ProfilerString8View& aEndEvent) {
+ aWriter.IntProperty("Thread Id", aThreadId);
+ aWriter.StringProperty("Thread Name", aName.Length() != 0
+ ? aName.AsSpan()
+ : MakeStringSpan("~Unnamed~"));
+ if (aEndEvent.Length() != 0) {
+ aWriter.StringProperty("End Event", aEndEvent);
+ }
+ }
+ static MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::MarkerChart, MS::Location::MarkerTable};
+ schema.AddKeyFormatSearchable("Thread Id", MS::Format::Integer,
+ MS::Searchable::Searchable);
+ schema.AddKeyFormatSearchable("Thread Name", MS::Format::String,
+ MS::Searchable::Searchable);
+ schema.AddKeyFormat("End Event", MS::Format::String);
+ schema.AddStaticLabelValue(
+ "Note",
+ "Start and end are approximate, based on first and last appearances.");
+ schema.SetChartLabel(
+ "{marker.data.Thread Name} (tid {marker.data.Thread Id})");
+ schema.SetTableLabel("{marker.name} lifetime");
+ return schema;
+ }
+};
+
+struct UnregisteredThreadCPUMarker {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("UnregisteredThreadCPU");
+ }
+ static void StreamJSONMarkerData(baseprofiler::SpliceableJSONWriter& aWriter,
+ base::ProcessId aThreadId,
+ int64_t aCPUDiffNs, const TimeStamp& aStart,
+ const TimeStamp& aEnd) {
+ aWriter.IntProperty("Thread Id", aThreadId);
+ aWriter.IntProperty("CPU Time", aCPUDiffNs);
+ aWriter.DoubleProperty(
+ "CPU Utilization",
+ double(aCPUDiffNs) / ((aEnd - aStart).ToMicroseconds() * 1000.0));
+ }
+ static MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::MarkerChart, MS::Location::MarkerTable};
+ schema.AddKeyFormatSearchable("Thread Id", MS::Format::Integer,
+ MS::Searchable::Searchable);
+ schema.AddKeyFormat("CPU Time", MS::Format::Nanoseconds);
+ schema.AddKeyFormat("CPU Utilization", MS::Format::Percentage);
+ schema.SetChartLabel("{marker.data.CPU Utilization}");
+ schema.SetTableLabel(
+ "{marker.name} - Activity: {marker.data.CPU Utilization}");
+ return schema;
+ }
+};
+
+} // namespace geckoprofiler::markers
+
+static bool IsThreadIdRegistered(ProfilerThreadId aThreadId) {
+ ThreadRegistry::LockedRegistry lockedRegistry;
+ const auto registryEnd = lockedRegistry.end();
+ return std::find_if(
+ lockedRegistry.begin(), registryEnd,
+ [aThreadId](const ThreadRegistry::OffThreadRef& aOffThreadRef) {
+ return aOffThreadRef.UnlockedConstReaderCRef()
+ .Info()
+ .ThreadId() == aThreadId;
+ }) != registryEnd;
+}
+
+static nsAutoCString MakeThreadInfoMarkerName(base::ProcessId aThreadId,
+ const nsACString& aName) {
+ nsAutoCString markerName{"tid "};
+ markerName.AppendInt(int64_t(aThreadId));
+ if (!aName.IsEmpty()) {
+ markerName.AppendLiteral(" ");
+ markerName.Append(aName);
+ }
+ return markerName;
+}
+
+void SamplerThread::SpyOnUnregisteredThreads() {
+ const TimeStamp unregisteredThreadSearchStart = TimeStamp::Now();
+
+ const base::ProcessId currentProcessId =
+ base::ProcessId(profiler_current_process_id().ToNumber());
+ nsTArray<ProcInfoRequest> request(1);
+ request.EmplaceBack(
+ /* aPid = */ currentProcessId,
+ /* aProcessType = */ ProcType::Unknown,
+ /* aOrigin = */ ""_ns,
+ /* aWindowInfo = */ nsTArray<WindowInfo>{},
+ /* aUtilityInfo = */ nsTArray<UtilityInfo>{},
+ /* aChild = */ 0
+#ifdef XP_MACOSX
+ ,
+ /* aChildTask = */ MACH_PORT_NULL
+#endif // XP_MACOSX
+ );
+
+ const ProcInfoPromise::ResolveOrRejectValue procInfoOrError =
+ GetProcInfoSync(std::move(request));
+
+ if (!procInfoOrError.IsResolve()) {
+ PROFILER_MARKER_TEXT("Failed unregistered thread search", PROFILER,
+ MarkerOptions(MarkerThreadId::MainThread(),
+ MarkerTiming::IntervalUntilNowFrom(
+ unregisteredThreadSearchStart)),
+ "Could not retrieve any process information");
+ return;
+ }
+
+ const auto& procInfoHashMap = procInfoOrError.ResolveValue();
+ // Expecting the requested (current) process information to be present in the
+ // hashmap.
+ const auto& procInfoPtr =
+ procInfoHashMap.readonlyThreadsafeLookup(currentProcessId);
+ if (!procInfoPtr) {
+ PROFILER_MARKER_TEXT("Failed unregistered thread search", PROFILER,
+ MarkerOptions(MarkerThreadId::MainThread(),
+ MarkerTiming::IntervalUntilNowFrom(
+ unregisteredThreadSearchStart)),
+ "Could not retrieve information about this process");
+ return;
+ }
+
+ // Record the time spent so far, which is OS-bound...
+ PROFILER_MARKER_TEXT("Unregistered thread search", PROFILER,
+ MarkerOptions(MarkerThreadId::MainThread(),
+ MarkerTiming::IntervalUntilNowFrom(
+ unregisteredThreadSearchStart)),
+ "Work to discover threads");
+
+ // ... and record the time needed to process the data, which we can control.
+ AUTO_PROFILER_MARKER_TEXT(
+ "Unregistered thread search", PROFILER,
+ MarkerOptions(MarkerThreadId::MainThread()),
+ "Work to process discovered threads and record unregistered ones"_ns);
+
+ const Span<const mozilla::ThreadInfo> threads = procInfoPtr->value().threads;
+
+ // mLastSpying timestamp should be null only at the beginning of a session,
+ // when mSpiedThreads is still empty.
+ MOZ_ASSERT_IF(mLastSpying.IsNull(), mSpiedThreads.IsEmpty());
+
+ const TimeStamp previousSpying = std::exchange(mLastSpying, TimeStamp::Now());
+
+ // Find threads that were spied on but are not present anymore.
+ const auto threadsBegin = threads.begin();
+ const auto threadsEnd = threads.end();
+ for (size_t spiedThreadIndexPlus1 = mSpiedThreads.Length();
+ spiedThreadIndexPlus1 != 0; --spiedThreadIndexPlus1) {
+ const SpiedThread& spiedThread = mSpiedThreads[spiedThreadIndexPlus1 - 1];
+ if (std::find_if(threadsBegin, threadsEnd,
+ [spiedTid = spiedThread.mThreadId](
+ const mozilla::ThreadInfo& aThreadInfo) {
+ return aThreadInfo.tid == spiedTid;
+ }) == threadsEnd) {
+ // This spied thread is gone.
+ PROFILER_MARKER(
+ MakeThreadInfoMarkerName(spiedThread.mThreadId, spiedThread.mName),
+ PROFILER,
+ MarkerOptions(
+ MarkerThreadId::MainThread(),
+ // Place the end between this update and the previous one.
+ MarkerTiming::IntervalEnd(previousSpying +
+ (mLastSpying - previousSpying) /
+ int64_t(2))),
+ UnregisteredThreadLifetimeMarker, spiedThread.mThreadId,
+ spiedThread.mName, "Thread disappeared");
+
+ // Don't spy on it anymore, assuming it won't come back.
+ mSpiedThreads.RemoveElementAt(spiedThreadIndexPlus1 - 1);
+ }
+ }
+
+ for (const mozilla::ThreadInfo& threadInfo : threads) {
+ // Index of this encountered thread in mSpiedThreads, or NoIndex.
+ size_t spiedThreadIndex = mSpiedThreads.IndexOf(threadInfo.tid);
+ if (IsThreadIdRegistered(ProfilerThreadId::FromNumber(threadInfo.tid))) {
+ // This thread id is already officially registered.
+ if (spiedThreadIndex != SpiedThreads::NoIndex) {
+ // This now-registered thread was previously being spied.
+ SpiedThread& spiedThread = mSpiedThreads[spiedThreadIndex];
+ PROFILER_MARKER(
+ MakeThreadInfoMarkerName(spiedThread.mThreadId, spiedThread.mName),
+ PROFILER,
+ MarkerOptions(
+ MarkerThreadId::MainThread(),
+ // Place the end between this update and the previous one.
+ // TODO: Find the real time from the thread registration?
+ MarkerTiming::IntervalEnd(previousSpying +
+ (mLastSpying - previousSpying) /
+ int64_t(2))),
+ UnregisteredThreadLifetimeMarker, spiedThread.mThreadId,
+ spiedThread.mName, "Thread registered itself");
+
+ // Remove from mSpiedThreads, since it can be profiled normally.
+ mSpiedThreads.RemoveElement(threadInfo.tid);
+ }
+ } else {
+ // This thread id is not registered.
+ if (spiedThreadIndex == SpiedThreads::NoIndex) {
+ // This unregistered thread has not been spied yet, store it now.
+ NS_ConvertUTF16toUTF8 name(threadInfo.name);
+ mSpiedThreads.EmplaceBack(threadInfo.tid, name, threadInfo.cpuTime);
+
+ PROFILER_MARKER(
+ MakeThreadInfoMarkerName(threadInfo.tid, name), PROFILER,
+ MarkerOptions(
+ MarkerThreadId::MainThread(),
+ // Place the start between this update and the previous one (or
+ // the start of this search if it's the first one).
+ MarkerTiming::IntervalStart(
+ mLastSpying -
+ (mLastSpying - (previousSpying.IsNull()
+ ? unregisteredThreadSearchStart
+ : previousSpying)) /
+ int64_t(2))),
+ UnregisteredThreadLifetimeMarker, threadInfo.tid, name,
+ /* aEndEvent */ "");
+ } else {
+ // This unregistered thread was already being spied, record its work.
+ SpiedThread& spiedThread = mSpiedThreads[spiedThreadIndex];
+ int64_t diffCPUTimeNs =
+ int64_t(threadInfo.cpuTime) - int64_t(spiedThread.mCPUTimeNs);
+ spiedThread.mCPUTimeNs = threadInfo.cpuTime;
+ if (diffCPUTimeNs != 0) {
+ PROFILER_MARKER(
+ MakeThreadInfoMarkerName(threadInfo.tid, spiedThread.mName),
+ PROFILER,
+ MarkerOptions(
+ MarkerThreadId::MainThread(),
+ MarkerTiming::Interval(previousSpying, mLastSpying)),
+ UnregisteredThreadCPUMarker, threadInfo.tid, diffCPUTimeNs,
+ previousSpying, mLastSpying);
+ }
+ }
+ }
+ }
+
+ PROFILER_MARKER_TEXT("Unregistered thread search", PROFILER,
+ MarkerOptions(MarkerThreadId::MainThread(),
+ MarkerTiming::IntervalUntilNowFrom(
+ unregisteredThreadSearchStart)),
+ "Work to discover and record unregistered threads");
+}
+
+// We #include these files directly because it means those files can use
+// declarations from this file trivially. These provide target-specific
+// implementations of all SamplerThread methods except Run().
+#if defined(GP_OS_windows)
+# include "platform-win32.cpp"
+#elif defined(GP_OS_darwin)
+# include "platform-macos.cpp"
+#elif defined(GP_OS_linux) || defined(GP_OS_android) || defined(GP_OS_freebsd)
+# include "platform-linux-android.cpp"
+#else
+# error "bad platform"
+#endif
+
+// END SamplerThread
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+// BEGIN externally visible functions
+
+MOZ_DEFINE_MALLOC_SIZE_OF(GeckoProfilerMallocSizeOf)
+
+NS_IMETHODIMP
+GeckoProfilerReporter::CollectReports(nsIHandleReportCallback* aHandleReport,
+ nsISupports* aData, bool aAnonymize) {
+ MOZ_RELEASE_ASSERT(NS_IsMainThread());
+
+ size_t profSize = 0;
+ size_t lulSize = 0;
+
+ {
+ PSAutoLock lock;
+
+ if (CorePS::Exists()) {
+ CorePS::AddSizeOf(lock, GeckoProfilerMallocSizeOf, profSize, lulSize);
+ }
+
+ if (ActivePS::Exists(lock)) {
+ profSize += ActivePS::SizeOf(lock, GeckoProfilerMallocSizeOf);
+ }
+ }
+
+ MOZ_COLLECT_REPORT(
+ "explicit/profiler/profiler-state", KIND_HEAP, UNITS_BYTES, profSize,
+ "Memory used by the Gecko Profiler's global state (excluding memory used "
+ "by LUL).");
+
+#if defined(USE_LUL_STACKWALK)
+ MOZ_COLLECT_REPORT(
+ "explicit/profiler/lul", KIND_HEAP, UNITS_BYTES, lulSize,
+ "Memory used by LUL, a stack unwinder used by the Gecko Profiler.");
+#endif
+
+ return NS_OK;
+}
+
+NS_IMPL_ISUPPORTS(GeckoProfilerReporter, nsIMemoryReporter)
+
+static uint32_t ParseFeature(const char* aFeature, bool aIsStartup) {
+ if (strcmp(aFeature, "default") == 0) {
+ return (aIsStartup ? (DefaultFeatures() | StartupExtraDefaultFeatures())
+ : DefaultFeatures()) &
+ AvailableFeatures();
+ }
+
+#define PARSE_FEATURE_BIT(n_, str_, Name_, desc_) \
+ if (strcmp(aFeature, str_) == 0) { \
+ return ProfilerFeature::Name_; \
+ }
+
+ PROFILER_FOR_EACH_FEATURE(PARSE_FEATURE_BIT)
+
+#undef PARSE_FEATURE_BIT
+
+ printf("\nUnrecognized feature \"%s\".\n\n", aFeature);
+ // Since we may have an old feature we don't implement anymore, don't exit.
+ PrintUsage();
+ return 0;
+}
+
+uint32_t ParseFeaturesFromStringArray(const char** aFeatures,
+ uint32_t aFeatureCount,
+ bool aIsStartup /* = false */) {
+ uint32_t features = 0;
+ for (size_t i = 0; i < aFeatureCount; i++) {
+ features |= ParseFeature(aFeatures[i], aIsStartup);
+ }
+ return features;
+}
+
+static ProfilingStack* locked_register_thread(
+ PSLockRef aLock, ThreadRegistry::OffThreadRef aOffThreadRef) {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ VTUNE_REGISTER_THREAD(aOffThreadRef.UnlockedConstReaderCRef().Info().Name());
+
+ if (ActivePS::Exists(aLock)) {
+ ThreadProfilingFeatures threadProfilingFeatures =
+ ActivePS::ProfilingFeaturesForThread(
+ aLock, aOffThreadRef.UnlockedConstReaderCRef().Info());
+ if (threadProfilingFeatures != ThreadProfilingFeatures::NotProfiled) {
+ ThreadRegistry::OffThreadRef::RWFromAnyThreadWithLock
+ lockedRWFromAnyThread = aOffThreadRef.GetLockedRWFromAnyThread();
+
+ ProfiledThreadData* profiledThreadData = ActivePS::AddLiveProfiledThread(
+ aLock, MakeUnique<ProfiledThreadData>(
+ aOffThreadRef.UnlockedConstReaderCRef().Info()));
+ lockedRWFromAnyThread->SetProfilingFeaturesAndData(
+ threadProfilingFeatures, profiledThreadData, aLock);
+
+ if (ActivePS::FeatureJS(aLock)) {
+ lockedRWFromAnyThread->StartJSSampling(ActivePS::JSFlags(aLock));
+ if (ThreadRegistration::LockedRWOnThread* lockedRWOnThread =
+ lockedRWFromAnyThread.GetLockedRWOnThread();
+ lockedRWOnThread) {
+ // We can manually poll the current thread so it starts sampling
+ // immediately.
+ lockedRWOnThread->PollJSSampling();
+ }
+ if (lockedRWFromAnyThread->GetJSContext()) {
+ profiledThreadData->NotifyReceivedJSContext(
+ ActivePS::Buffer(aLock).BufferRangeEnd());
+ }
+ }
+ }
+ }
+
+ return &aOffThreadRef.UnlockedConstReaderAndAtomicRWRef().ProfilingStackRef();
+}
+
+static void NotifyObservers(const char* aTopic,
+ nsISupports* aSubject = nullptr) {
+ if (!NS_IsMainThread()) {
+ // Dispatch a task to the main thread that notifies observers.
+ // If NotifyObservers is called both on and off the main thread within a
+ // short time, the order of the notifications can be different from the
+ // order of the calls to NotifyObservers.
+ // Getting the order 100% right isn't that important at the moment, because
+ // these notifications are only observed in the parent process, where the
+ // profiler_* functions are currently only called on the main thread.
+ nsCOMPtr<nsISupports> subject = aSubject;
+ NS_DispatchToMainThread(NS_NewRunnableFunction(
+ "NotifyObservers", [=] { NotifyObservers(aTopic, subject); }));
+ return;
+ }
+
+ if (nsCOMPtr<nsIObserverService> os = services::GetObserverService()) {
+ os->NotifyObservers(aSubject, aTopic, nullptr);
+ }
+}
+
+[[nodiscard]] static RefPtr<GenericPromise> NotifyProfilerStarted(
+ const PowerOfTwo32& aCapacity, const Maybe<double>& aDuration,
+ double aInterval, uint32_t aFeatures, const char** aFilters,
+ uint32_t aFilterCount, uint64_t aActiveTabID) {
+ nsTArray<nsCString> filtersArray;
+ for (size_t i = 0; i < aFilterCount; ++i) {
+ filtersArray.AppendElement(aFilters[i]);
+ }
+
+ nsCOMPtr<nsIProfilerStartParams> params = new nsProfilerStartParams(
+ aCapacity.Value(), aDuration, aInterval, aFeatures,
+ std::move(filtersArray), aActiveTabID);
+
+ RefPtr<GenericPromise> startPromise = ProfilerParent::ProfilerStarted(params);
+ NotifyObservers("profiler-started", params);
+ return startPromise;
+}
+
+static void locked_profiler_start(PSLockRef aLock, PowerOfTwo32 aCapacity,
+ double aInterval, uint32_t aFeatures,
+ const char** aFilters, uint32_t aFilterCount,
+ uint64_t aActiveTabID,
+ const Maybe<double>& aDuration);
+
+// This basically duplicates AutoProfilerLabel's constructor.
+static void* MozGlueLabelEnter(const char* aLabel, const char* aDynamicString,
+ void* aSp) {
+ ThreadRegistration::OnThreadPtr onThreadPtr =
+ ThreadRegistration::GetOnThreadPtr();
+ if (!onThreadPtr) {
+ return nullptr;
+ }
+ ProfilingStack& profilingStack =
+ onThreadPtr->UnlockedConstReaderAndAtomicRWRef().ProfilingStackRef();
+ profilingStack.pushLabelFrame(aLabel, aDynamicString, aSp,
+ JS::ProfilingCategoryPair::OTHER);
+ return &profilingStack;
+}
+
+// This basically duplicates AutoProfilerLabel's destructor.
+static void MozGlueLabelExit(void* aProfilingStack) {
+ if (aProfilingStack) {
+ reinterpret_cast<ProfilingStack*>(aProfilingStack)->pop();
+ }
+}
+
+static Vector<const char*> SplitAtCommas(const char* aString,
+ UniquePtr<char[]>& aStorage) {
+ size_t len = strlen(aString);
+ aStorage = MakeUnique<char[]>(len + 1);
+ PodCopy(aStorage.get(), aString, len + 1);
+
+ // Iterate over all characters in aStorage and split at commas, by
+ // overwriting commas with the null char.
+ Vector<const char*> array;
+ size_t currentElementStart = 0;
+ for (size_t i = 0; i <= len; i++) {
+ if (aStorage[i] == ',') {
+ aStorage[i] = '\0';
+ }
+ if (aStorage[i] == '\0') {
+ // Only add non-empty elements, otherwise ParseFeatures would later
+ // complain about unrecognized features.
+ if (currentElementStart != i) {
+ MOZ_RELEASE_ASSERT(array.append(&aStorage[currentElementStart]));
+ }
+ currentElementStart = i + 1;
+ }
+ }
+ return array;
+}
+
+void profiler_init_threadmanager() {
+ LOG("profiler_init_threadmanager");
+
+ ThreadRegistration::WithOnThreadRef(
+ [](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ aOnThreadRef.WithLockedRWOnThread(
+ [](ThreadRegistration::LockedRWOnThread& aThreadData) {
+ if (!aThreadData.GetEventTarget()) {
+ aThreadData.ResetMainThread(NS_GetCurrentThreadNoCreate());
+ }
+ });
+ });
+}
+
+static const char* get_size_suffix(const char* str) {
+ const char* ptr = str;
+
+ while (isdigit(*ptr)) {
+ ptr++;
+ }
+
+ return ptr;
+}
+
+void profiler_init(void* aStackTop) {
+ LOG("profiler_init");
+
+ profiler_init_main_thread_id();
+
+ VTUNE_INIT();
+
+ MOZ_RELEASE_ASSERT(!CorePS::Exists());
+
+ if (getenv("MOZ_PROFILER_HELP")) {
+ PrintUsage();
+ exit(0);
+ }
+
+ SharedLibraryInfo::Initialize();
+
+ uint32_t features = DefaultFeatures() & AvailableFeatures();
+
+ UniquePtr<char[]> filterStorage;
+
+ Vector<const char*> filters;
+ MOZ_RELEASE_ASSERT(filters.append("GeckoMain"));
+ MOZ_RELEASE_ASSERT(filters.append("Compositor"));
+ MOZ_RELEASE_ASSERT(filters.append("Renderer"));
+ MOZ_RELEASE_ASSERT(filters.append("DOM Worker"));
+
+ PowerOfTwo32 capacity = PROFILER_DEFAULT_ENTRIES;
+ Maybe<double> duration = Nothing();
+ double interval = PROFILER_DEFAULT_INTERVAL;
+ uint64_t activeTabID = PROFILER_DEFAULT_ACTIVE_TAB_ID;
+
+ ThreadRegistration::RegisterThread(kMainThreadName, aStackTop);
+
+ {
+ PSAutoLock lock;
+
+ // We've passed the possible failure point. Instantiate CorePS, which
+ // indicates that the profiler has initialized successfully.
+ CorePS::Create(lock);
+
+ // Make sure threads already in the ThreadRegistry (like the main thread)
+ // get registered in CorePS as well.
+ {
+ ThreadRegistry::LockedRegistry lockedRegistry;
+ for (ThreadRegistry::OffThreadRef offThreadRef : lockedRegistry) {
+ locked_register_thread(lock, offThreadRef);
+ }
+ }
+
+ // Platform-specific initialization.
+ PlatformInit(lock);
+
+#if defined(GP_OS_android)
+ if (jni::IsAvailable()) {
+ GeckoJavaSampler::Init();
+ }
+#endif
+
+ // (Linux-only) We could create CorePS::mLul and read unwind info into it
+ // at this point. That would match the lifetime implied by destruction of
+ // it in profiler_shutdown() just below. However, that gives a big delay on
+ // startup, even if no profiling is actually to be done. So, instead, it is
+ // created on demand at the first call to PlatformStart().
+
+ const char* startupEnv = getenv("MOZ_PROFILER_STARTUP");
+ if (!startupEnv || startupEnv[0] == '\0' ||
+ ((startupEnv[0] == '0' || startupEnv[0] == 'N' ||
+ startupEnv[0] == 'n') &&
+ startupEnv[1] == '\0')) {
+ return;
+ }
+
+ LOG("- MOZ_PROFILER_STARTUP is set");
+
+ // Startup default capacity may be different.
+ capacity = PROFILER_DEFAULT_STARTUP_ENTRIES;
+
+ const char* startupCapacity = getenv("MOZ_PROFILER_STARTUP_ENTRIES");
+ if (startupCapacity && startupCapacity[0] != '\0') {
+ errno = 0;
+ long capacityLong = strtol(startupCapacity, nullptr, 10);
+ std::string_view sizeSuffix = get_size_suffix(startupCapacity);
+
+ if (sizeSuffix == "KB") {
+ capacityLong *= 1000 / scBytesPerEntry;
+ } else if (sizeSuffix == "KiB") {
+ capacityLong *= 1024 / scBytesPerEntry;
+ } else if (sizeSuffix == "MB") {
+ capacityLong *= (1000 * 1000) / scBytesPerEntry;
+ } else if (sizeSuffix == "MiB") {
+ capacityLong *= (1024 * 1024) / scBytesPerEntry;
+ } else if (sizeSuffix == "GB") {
+ capacityLong *= (1000 * 1000 * 1000) / scBytesPerEntry;
+ } else if (sizeSuffix == "GiB") {
+ capacityLong *= (1024 * 1024 * 1024) / scBytesPerEntry;
+ } else if (!sizeSuffix.empty()) {
+ LOG("- MOZ_PROFILER_STARTUP_ENTRIES unit must be one of the "
+ "following: KB, KiB, MB, MiB, GB, GiB");
+ PrintUsage();
+ exit(1);
+ }
+
+ // `long` could be 32 or 64 bits, so we force a 64-bit comparison with
+ // the maximum 32-bit signed number (as more than that is clamped down to
+ // 2^31 anyway).
+ if (errno == 0 && capacityLong > 0 &&
+ static_cast<uint64_t>(capacityLong) <=
+ static_cast<uint64_t>(INT32_MAX)) {
+ capacity = PowerOfTwo32(ActivePS::ClampToAllowedEntries(
+ static_cast<uint32_t>(capacityLong)));
+ LOG("- MOZ_PROFILER_STARTUP_ENTRIES = %u", unsigned(capacity.Value()));
+ } else {
+ LOG("- MOZ_PROFILER_STARTUP_ENTRIES not a valid integer: %s",
+ startupCapacity);
+ PrintUsage();
+ exit(1);
+ }
+ }
+
+ const char* startupDuration = getenv("MOZ_PROFILER_STARTUP_DURATION");
+ if (startupDuration && startupDuration[0] != '\0') {
+ errno = 0;
+ double durationVal = PR_strtod(startupDuration, nullptr);
+ if (errno == 0 && durationVal >= 0.0) {
+ if (durationVal > 0.0) {
+ duration = Some(durationVal);
+ }
+ LOG("- MOZ_PROFILER_STARTUP_DURATION = %f", durationVal);
+ } else {
+ LOG("- MOZ_PROFILER_STARTUP_DURATION not a valid float: %s",
+ startupDuration);
+ PrintUsage();
+ exit(1);
+ }
+ }
+
+ const char* startupInterval = getenv("MOZ_PROFILER_STARTUP_INTERVAL");
+ if (startupInterval && startupInterval[0] != '\0') {
+ errno = 0;
+ interval = PR_strtod(startupInterval, nullptr);
+ if (errno == 0 && interval > 0.0 && interval <= PROFILER_MAX_INTERVAL) {
+ LOG("- MOZ_PROFILER_STARTUP_INTERVAL = %f", interval);
+ } else {
+ LOG("- MOZ_PROFILER_STARTUP_INTERVAL not a valid float: %s",
+ startupInterval);
+ PrintUsage();
+ exit(1);
+ }
+ }
+
+ features |= StartupExtraDefaultFeatures() & AvailableFeatures();
+
+ const char* startupFeaturesBitfield =
+ getenv("MOZ_PROFILER_STARTUP_FEATURES_BITFIELD");
+ if (startupFeaturesBitfield && startupFeaturesBitfield[0] != '\0') {
+ errno = 0;
+ features = strtol(startupFeaturesBitfield, nullptr, 10);
+ if (errno == 0) {
+ LOG("- MOZ_PROFILER_STARTUP_FEATURES_BITFIELD = %d", features);
+ } else {
+ LOG("- MOZ_PROFILER_STARTUP_FEATURES_BITFIELD not a valid integer: %s",
+ startupFeaturesBitfield);
+ PrintUsage();
+ exit(1);
+ }
+ } else {
+ const char* startupFeatures = getenv("MOZ_PROFILER_STARTUP_FEATURES");
+ if (startupFeatures) {
+ // Interpret startupFeatures as a list of feature strings, separated by
+ // commas.
+ UniquePtr<char[]> featureStringStorage;
+ Vector<const char*> featureStringArray =
+ SplitAtCommas(startupFeatures, featureStringStorage);
+ features = ParseFeaturesFromStringArray(featureStringArray.begin(),
+ featureStringArray.length(),
+ /* aIsStartup */ true);
+ LOG("- MOZ_PROFILER_STARTUP_FEATURES = %d", features);
+ }
+ }
+
+ const char* startupFilters = getenv("MOZ_PROFILER_STARTUP_FILTERS");
+ if (startupFilters && startupFilters[0] != '\0') {
+ filters = SplitAtCommas(startupFilters, filterStorage);
+ LOG("- MOZ_PROFILER_STARTUP_FILTERS = %s", startupFilters);
+
+ if (mozilla::profiler::detail::FiltersExcludePid(filters)) {
+ LOG(" -> This process is excluded and won't be profiled");
+ return;
+ }
+ }
+
+ const char* startupActiveTabID =
+ getenv("MOZ_PROFILER_STARTUP_ACTIVE_TAB_ID");
+ if (startupActiveTabID && startupActiveTabID[0] != '\0') {
+ std::istringstream iss(startupActiveTabID);
+ iss >> activeTabID;
+ if (!iss.fail()) {
+ LOG("- MOZ_PROFILER_STARTUP_ACTIVE_TAB_ID = %" PRIu64, activeTabID);
+ } else {
+ LOG("- MOZ_PROFILER_STARTUP_ACTIVE_TAB_ID not a valid "
+ "uint64_t: %s",
+ startupActiveTabID);
+ PrintUsage();
+ exit(1);
+ }
+ }
+
+ locked_profiler_start(lock, capacity, interval, features, filters.begin(),
+ filters.length(), activeTabID, duration);
+ }
+
+ // The GeckoMain thread registration happened too early to record a marker,
+ // so let's record it again now.
+ profiler_mark_thread_awake();
+
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ // Start counting memory allocations (outside of lock because this may call
+ // profiler_add_sampled_counter which would attempt to take the lock.)
+ ActivePS::SetMemoryCounter(mozilla::profiler::install_memory_hooks());
+#endif
+
+ invoke_profiler_state_change_callbacks(ProfilingState::Started);
+
+ // We do this with gPSMutex unlocked. The comment in profiler_stop() explains
+ // why.
+ Unused << NotifyProfilerStarted(capacity, duration, interval, features,
+ filters.begin(), filters.length(), 0);
+}
+
+static void locked_profiler_save_profile_to_file(
+ PSLockRef aLock, const char* aFilename,
+ const PreRecordedMetaInformation& aPreRecordedMetaInformation,
+ bool aIsShuttingDown);
+
+static SamplerThread* locked_profiler_stop(PSLockRef aLock);
+
+void profiler_shutdown(IsFastShutdown aIsFastShutdown) {
+ LOG("profiler_shutdown");
+
+ VTUNE_SHUTDOWN();
+
+ MOZ_RELEASE_ASSERT(NS_IsMainThread());
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ if (profiler_is_active()) {
+ invoke_profiler_state_change_callbacks(ProfilingState::Stopping);
+ }
+ invoke_profiler_state_change_callbacks(ProfilingState::ShuttingDown);
+
+ const auto preRecordedMetaInformation = PreRecordMetaInformation();
+
+ ProfilerParent::ProfilerWillStopIfStarted();
+
+ // If the profiler is active we must get a handle to the SamplerThread before
+ // ActivePS is destroyed, in order to delete it.
+ SamplerThread* samplerThread = nullptr;
+ {
+ PSAutoLock lock;
+
+ // Save the profile on shutdown if requested.
+ if (ActivePS::Exists(lock)) {
+ const char* filename = getenv("MOZ_PROFILER_SHUTDOWN");
+ if (filename && filename[0] != '\0') {
+ locked_profiler_save_profile_to_file(lock, filename,
+ preRecordedMetaInformation,
+ /* aIsShuttingDown */ true);
+ }
+ if (aIsFastShutdown == IsFastShutdown::Yes) {
+ return;
+ }
+
+ samplerThread = locked_profiler_stop(lock);
+ } else if (aIsFastShutdown == IsFastShutdown::Yes) {
+ return;
+ }
+
+ CorePS::Destroy(lock);
+ }
+
+ // We do these operations with gPSMutex unlocked. The comments in
+ // profiler_stop() explain why.
+ if (samplerThread) {
+ Unused << ProfilerParent::ProfilerStopped();
+ NotifyObservers("profiler-stopped");
+ delete samplerThread;
+ }
+
+ // Reverse the registration done in profiler_init.
+ ThreadRegistration::UnregisterThread();
+}
+
+static bool WriteProfileToJSONWriter(SpliceableChunkedJSONWriter& aWriter,
+ double aSinceTime, bool aIsShuttingDown,
+ ProfilerCodeAddressService* aService,
+ mozilla::ProgressLogger aProgressLogger) {
+ LOG("WriteProfileToJSONWriter");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ aWriter.Start();
+ {
+ auto rv = profiler_stream_json_for_this_process(
+ aWriter, aSinceTime, aIsShuttingDown, aService,
+ aProgressLogger.CreateSubLoggerFromTo(
+ 0_pc,
+ "WriteProfileToJSONWriter: "
+ "profiler_stream_json_for_this_process started",
+ 100_pc,
+ "WriteProfileToJSONWriter: "
+ "profiler_stream_json_for_this_process done"));
+
+ if (rv.isErr()) {
+ return false;
+ }
+
+ // Don't include profiles from other processes because this is a
+ // synchronous function.
+ aWriter.StartArrayProperty("processes");
+ aWriter.EndArray();
+ }
+ aWriter.End();
+ return !aWriter.Failed();
+}
+
+void profiler_set_process_name(const nsACString& aProcessName,
+ const nsACString* aETLDplus1) {
+ LOG("profiler_set_process_name(\"%s\", \"%s\")", aProcessName.Data(),
+ aETLDplus1 ? aETLDplus1->Data() : "<none>");
+ PSAutoLock lock;
+ CorePS::SetProcessName(lock, aProcessName);
+ if (aETLDplus1) {
+ CorePS::SetETLDplus1(lock, *aETLDplus1);
+ }
+}
+
+UniquePtr<char[]> profiler_get_profile(double aSinceTime,
+ bool aIsShuttingDown) {
+ LOG("profiler_get_profile");
+
+ UniquePtr<ProfilerCodeAddressService> service =
+ profiler_code_address_service_for_presymbolication();
+
+ FailureLatchSource failureLatch;
+ SpliceableChunkedJSONWriter b{failureLatch};
+ if (!WriteProfileToJSONWriter(b, aSinceTime, aIsShuttingDown, service.get(),
+ ProgressLogger{})) {
+ return nullptr;
+ }
+ return b.ChunkedWriteFunc().CopyData();
+}
+
+[[nodiscard]] bool profiler_get_profile_json(
+ SpliceableChunkedJSONWriter& aSpliceableChunkedJSONWriter,
+ double aSinceTime, bool aIsShuttingDown,
+ mozilla::ProgressLogger aProgressLogger) {
+ LOG("profiler_get_profile_json");
+
+ UniquePtr<ProfilerCodeAddressService> service =
+ profiler_code_address_service_for_presymbolication();
+
+ return WriteProfileToJSONWriter(
+ aSpliceableChunkedJSONWriter, aSinceTime, aIsShuttingDown, service.get(),
+ aProgressLogger.CreateSubLoggerFromTo(
+ 0.1_pc, "profiler_get_profile_json: WriteProfileToJSONWriter started",
+ 99.9_pc, "profiler_get_profile_json: WriteProfileToJSONWriter done"));
+}
+
+void profiler_get_start_params(int* aCapacity, Maybe<double>* aDuration,
+ double* aInterval, uint32_t* aFeatures,
+ Vector<const char*>* aFilters,
+ uint64_t* aActiveTabID) {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ if (NS_WARN_IF(!aCapacity) || NS_WARN_IF(!aDuration) ||
+ NS_WARN_IF(!aInterval) || NS_WARN_IF(!aFeatures) ||
+ NS_WARN_IF(!aFilters)) {
+ return;
+ }
+
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ *aCapacity = 0;
+ *aDuration = Nothing();
+ *aInterval = 0;
+ *aFeatures = 0;
+ *aActiveTabID = 0;
+ aFilters->clear();
+ return;
+ }
+
+ *aCapacity = ActivePS::Capacity(lock).Value();
+ *aDuration = ActivePS::Duration(lock);
+ *aInterval = ActivePS::Interval(lock);
+ *aFeatures = ActivePS::Features(lock);
+ *aActiveTabID = ActivePS::ActiveTabID(lock);
+
+ const Vector<std::string>& filters = ActivePS::Filters(lock);
+ MOZ_ALWAYS_TRUE(aFilters->resize(filters.length()));
+ for (uint32_t i = 0; i < filters.length(); ++i) {
+ (*aFilters)[i] = filters[i].c_str();
+ }
+}
+
+ProfileBufferControlledChunkManager* profiler_get_controlled_chunk_manager() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+ PSAutoLock lock;
+ if (NS_WARN_IF(!ActivePS::Exists(lock))) {
+ return nullptr;
+ }
+ return &ActivePS::ControlledChunkManager(lock);
+}
+
+namespace mozilla {
+
+void GetProfilerEnvVarsForChildProcess(
+ std::function<void(const char* key, const char* value)>&& aSetEnv) {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ aSetEnv("MOZ_PROFILER_STARTUP", "");
+ return;
+ }
+
+ aSetEnv("MOZ_PROFILER_STARTUP", "1");
+
+ // If MOZ_PROFILER_SHUTDOWN is defined, make sure it's empty in children, so
+ // that they don't attempt to write over that file.
+ if (getenv("MOZ_PROFILER_SHUTDOWN")) {
+ aSetEnv("MOZ_PROFILER_SHUTDOWN", "");
+ }
+
+ // Hidden option to stop Base Profiler, mostly due to Talos intermittents,
+ // see https://bugzilla.mozilla.org/show_bug.cgi?id=1638851#c3
+ // TODO: Investigate root cause and remove this in bugs 1648324 and 1648325.
+ if (getenv("MOZ_PROFILER_STARTUP_NO_BASE")) {
+ aSetEnv("MOZ_PROFILER_STARTUP_NO_BASE", "1");
+ }
+
+ auto capacityString =
+ Smprintf("%u", unsigned(ActivePS::Capacity(lock).Value()));
+ aSetEnv("MOZ_PROFILER_STARTUP_ENTRIES", capacityString.get());
+
+ // Use AppendFloat instead of Smprintf with %f because the decimal
+ // separator used by %f is locale-dependent. But the string we produce needs
+ // to be parseable by strtod, which only accepts the period character as a
+ // decimal separator. AppendFloat always uses the period character.
+ nsCString intervalString;
+ intervalString.AppendFloat(ActivePS::Interval(lock));
+ aSetEnv("MOZ_PROFILER_STARTUP_INTERVAL", intervalString.get());
+
+ auto featuresString = Smprintf("%d", ActivePS::Features(lock));
+ aSetEnv("MOZ_PROFILER_STARTUP_FEATURES_BITFIELD", featuresString.get());
+
+ std::string filtersString;
+ const Vector<std::string>& filters = ActivePS::Filters(lock);
+ for (uint32_t i = 0; i < filters.length(); ++i) {
+ if (i != 0) {
+ filtersString += ",";
+ }
+ filtersString += filters[i];
+ }
+ aSetEnv("MOZ_PROFILER_STARTUP_FILTERS", filtersString.c_str());
+
+ auto activeTabIDString = Smprintf("%" PRIu64, ActivePS::ActiveTabID(lock));
+ aSetEnv("MOZ_PROFILER_STARTUP_ACTIVE_TAB_ID", activeTabIDString.get());
+}
+
+} // namespace mozilla
+
+void profiler_received_exit_profile(const nsACString& aExitProfile) {
+ MOZ_RELEASE_ASSERT(NS_IsMainThread());
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+ PSAutoLock lock;
+ if (!ActivePS::Exists(lock)) {
+ return;
+ }
+ ActivePS::AddExitProfile(lock, aExitProfile);
+}
+
+Vector<nsCString> profiler_move_exit_profiles() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+ PSAutoLock lock;
+ Vector<nsCString> profiles;
+ if (ActivePS::Exists(lock)) {
+ profiles = ActivePS::MoveExitProfiles(lock);
+ }
+ return profiles;
+}
+
+static void locked_profiler_save_profile_to_file(
+ PSLockRef aLock, const char* aFilename,
+ const PreRecordedMetaInformation& aPreRecordedMetaInformation,
+ bool aIsShuttingDown = false) {
+ nsAutoCString processedFilename(aFilename);
+ const auto processInsertionIndex = processedFilename.Find("%p");
+ if (processInsertionIndex != kNotFound) {
+ // Replace "%p" with the process id.
+ nsAutoCString process;
+ process.AppendInt(profiler_current_process_id().ToNumber());
+ processedFilename.Replace(processInsertionIndex, 2, process);
+ LOG("locked_profiler_save_profile_to_file(\"%s\" -> \"%s\")", aFilename,
+ processedFilename.get());
+ } else {
+ LOG("locked_profiler_save_profile_to_file(\"%s\")", aFilename);
+ }
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists() && ActivePS::Exists(aLock));
+
+ std::ofstream stream;
+ stream.open(processedFilename.get());
+ if (stream.is_open()) {
+ OStreamJSONWriteFunc sw(stream);
+ SpliceableJSONWriter w(sw, FailureLatchInfallibleSource::Singleton());
+ w.Start();
+ {
+ Unused << locked_profiler_stream_json_for_this_process(
+ aLock, w, /* sinceTime */ 0, aPreRecordedMetaInformation,
+ aIsShuttingDown, nullptr, ProgressLogger{});
+
+ w.StartArrayProperty("processes");
+ Vector<nsCString> exitProfiles = ActivePS::MoveExitProfiles(aLock);
+ for (auto& exitProfile : exitProfiles) {
+ if (!exitProfile.IsEmpty() && exitProfile[0] != '*') {
+ w.Splice(exitProfile);
+ }
+ }
+ w.EndArray();
+ }
+ w.End();
+
+ stream.close();
+ }
+}
+
+void profiler_save_profile_to_file(const char* aFilename) {
+ LOG("profiler_save_profile_to_file(%s)", aFilename);
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ const auto preRecordedMetaInformation = PreRecordMetaInformation();
+
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return;
+ }
+
+ locked_profiler_save_profile_to_file(lock, aFilename,
+ preRecordedMetaInformation);
+}
+
+uint32_t profiler_get_available_features() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+ return AvailableFeatures();
+}
+
+Maybe<ProfilerBufferInfo> profiler_get_buffer_info() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return Nothing();
+ }
+
+ return Some(ActivePS::Buffer(lock).GetProfilerBufferInfo());
+}
+
+static void PollJSSamplingForCurrentThread() {
+ ThreadRegistration::WithOnThreadRef(
+ [](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ aOnThreadRef.WithLockedRWOnThread(
+ [](ThreadRegistration::LockedRWOnThread& aThreadData) {
+ aThreadData.PollJSSampling();
+ });
+ });
+}
+
+// When the profiler is started on a background thread, we can't synchronously
+// call PollJSSampling on the main thread's ThreadInfo. And the next regular
+// call to PollJSSampling on the main thread would only happen once the main
+// thread triggers a JS interrupt callback.
+// This means that all the JS execution between profiler_start() and the first
+// JS interrupt would happen with JS sampling disabled, and we wouldn't get any
+// JS function information for that period of time.
+// So in order to start JS sampling as soon as possible, we dispatch a runnable
+// to the main thread which manually calls PollJSSamplingForCurrentThread().
+// In some cases this runnable will lose the race with the next JS interrupt.
+// That's fine; PollJSSamplingForCurrentThread() is immune to redundant calls.
+static void TriggerPollJSSamplingOnMainThread() {
+ nsCOMPtr<nsIThread> mainThread;
+ nsresult rv = NS_GetMainThread(getter_AddRefs(mainThread));
+ if (NS_SUCCEEDED(rv) && mainThread) {
+ nsCOMPtr<nsIRunnable> task =
+ NS_NewRunnableFunction("TriggerPollJSSamplingOnMainThread",
+ []() { PollJSSamplingForCurrentThread(); });
+ SchedulerGroup::Dispatch(TaskCategory::Other, task.forget());
+ }
+}
+
+static void locked_profiler_start(PSLockRef aLock, PowerOfTwo32 aCapacity,
+ double aInterval, uint32_t aFeatures,
+ const char** aFilters, uint32_t aFilterCount,
+ uint64_t aActiveTabID,
+ const Maybe<double>& aDuration) {
+ TimeStamp profilingStartTime = TimeStamp::Now();
+
+ if (LOG_TEST) {
+ LOG("locked_profiler_start");
+ LOG("- capacity = %u", unsigned(aCapacity.Value()));
+ LOG("- duration = %.2f", aDuration ? *aDuration : -1);
+ LOG("- interval = %.2f", aInterval);
+ LOG("- tab ID = %" PRIu64, aActiveTabID);
+
+#define LOG_FEATURE(n_, str_, Name_, desc_) \
+ if (ProfilerFeature::Has##Name_(aFeatures)) { \
+ LOG("- feature = %s", str_); \
+ }
+
+ PROFILER_FOR_EACH_FEATURE(LOG_FEATURE)
+
+#undef LOG_FEATURE
+
+ for (uint32_t i = 0; i < aFilterCount; i++) {
+ LOG("- threads = %s", aFilters[i]);
+ }
+ }
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists() && !ActivePS::Exists(aLock));
+
+ // Do this before the Base Profiler is stopped, to keep the existing buffer
+ // (if any) alive for our use.
+ if (NS_IsMainThread()) {
+ mozilla::base_profiler_markers_detail::EnsureBufferForMainThreadAddMarker();
+ } else {
+ NS_DispatchToMainThread(
+ NS_NewRunnableFunction("EnsureBufferForMainThreadAddMarker",
+ &mozilla::base_profiler_markers_detail::
+ EnsureBufferForMainThreadAddMarker));
+ }
+
+ UniquePtr<ProfileBufferChunkManagerWithLocalLimit> baseChunkManager;
+ bool profilersHandOver = false;
+ if (baseprofiler::profiler_is_active()) {
+ // Note that we still hold the lock, so the sampler cannot run yet and
+ // interact negatively with the still-active BaseProfiler sampler.
+ // Assume that Base Profiler is active because of MOZ_PROFILER_STARTUP.
+
+ // Take ownership of the chunk manager from the Base Profiler, to extend its
+ // lifetime during the new Gecko Profiler session. Since we're using the
+ // same core buffer, all the base profiler data remains.
+ baseChunkManager = baseprofiler::detail::ExtractBaseProfilerChunkManager();
+
+ if (baseChunkManager) {
+ profilersHandOver = true;
+ if (const TimeStamp baseProfilingStartTime =
+ baseprofiler::detail::GetProfilingStartTime();
+ !baseProfilingStartTime.IsNull()) {
+ profilingStartTime = baseProfilingStartTime;
+ }
+
+ BASE_PROFILER_MARKER_TEXT(
+ "Profilers handover", PROFILER, MarkerTiming::IntervalStart(),
+ "Transition from Base to Gecko Profiler, some data may be missing");
+ }
+
+ // Now stop Base Profiler (BP), as further recording will be ignored anyway,
+ // and so that it won't clash with Gecko Profiler (GP) sampling starting
+ // after the lock is dropped.
+ // On Linux this is especially important to do before creating the GP
+ // sampler, because the BP sampler may send a signal (to stop threads to be
+ // sampled), which the GP would intercept before its own initialization is
+ // complete and ready to handle such signals.
+ // Note that even though `profiler_stop()` doesn't immediately destroy and
+ // join the sampler thread, it safely deactivates it in such a way that the
+ // thread will soon exit without doing any actual work.
+ // TODO: Allow non-sampling profiling to continue.
+ // TODO: Re-start BP after GP shutdown, to capture post-XPCOM shutdown.
+ baseprofiler::profiler_stop();
+ }
+
+#if defined(GP_PLAT_amd64_windows)
+ InitializeWin64ProfilerHooks();
+#endif
+
+ // Fall back to the default values if the passed-in values are unreasonable.
+ // We want to be able to store at least one full stack.
+ PowerOfTwo32 capacity =
+ (aCapacity.Value() >=
+ ProfileBufferChunkManager::scExpectedMaximumStackSize / scBytesPerEntry)
+ ? aCapacity
+ : PROFILER_DEFAULT_ENTRIES;
+ Maybe<double> duration = aDuration;
+
+ if (aDuration && *aDuration <= 0) {
+ duration = Nothing();
+ }
+
+ double interval = aInterval > 0 ? aInterval : PROFILER_DEFAULT_INTERVAL;
+
+ ActivePS::Create(aLock, profilingStartTime, capacity, interval, aFeatures,
+ aFilters, aFilterCount, aActiveTabID, duration,
+ std::move(baseChunkManager));
+
+ // ActivePS::Create can only succeed or crash.
+ MOZ_ASSERT(ActivePS::Exists(aLock));
+
+ // Set up profiling for each registered thread, if appropriate.
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ bool isMainThreadBeingProfiled = false;
+#endif
+ ThreadRegistry::LockedRegistry lockedRegistry;
+ for (ThreadRegistry::OffThreadRef offThreadRef : lockedRegistry) {
+ const ThreadRegistrationInfo& info =
+ offThreadRef.UnlockedConstReaderCRef().Info();
+
+ ThreadProfilingFeatures threadProfilingFeatures =
+ ActivePS::ProfilingFeaturesForThread(aLock, info);
+ if (threadProfilingFeatures != ThreadProfilingFeatures::NotProfiled) {
+ ThreadRegistry::OffThreadRef::RWFromAnyThreadWithLock lockedThreadData =
+ offThreadRef.GetLockedRWFromAnyThread();
+ ProfiledThreadData* profiledThreadData = ActivePS::AddLiveProfiledThread(
+ aLock, MakeUnique<ProfiledThreadData>(info));
+ lockedThreadData->SetProfilingFeaturesAndData(threadProfilingFeatures,
+ profiledThreadData, aLock);
+ lockedThreadData->GetNewCpuTimeInNs();
+ if (ActivePS::FeatureJS(aLock)) {
+ lockedThreadData->StartJSSampling(ActivePS::JSFlags(aLock));
+ if (ThreadRegistration::LockedRWOnThread* lockedRWOnThread =
+ lockedThreadData.GetLockedRWOnThread();
+ lockedRWOnThread) {
+ // We can manually poll the current thread so it starts sampling
+ // immediately.
+ lockedRWOnThread->PollJSSampling();
+ } else if (info.IsMainThread()) {
+ // Dispatch a runnable to the main thread to call
+ // PollJSSampling(), so that we don't have wait for the next JS
+ // interrupt callback in order to start profiling JS.
+ TriggerPollJSSamplingOnMainThread();
+ }
+ }
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ if (info.IsMainThread()) {
+ isMainThreadBeingProfiled = true;
+ }
+#endif
+ lockedThreadData->ReinitializeOnResume();
+ if (ActivePS::FeatureJS(aLock) && lockedThreadData->GetJSContext()) {
+ profiledThreadData->NotifyReceivedJSContext(0);
+ }
+ }
+ }
+
+ // Setup support for pushing/popping labels in mozglue.
+ RegisterProfilerLabelEnterExit(MozGlueLabelEnter, MozGlueLabelExit);
+
+#if defined(GP_OS_android)
+ if (ActivePS::FeatureJava(aLock)) {
+ int javaInterval = interval;
+ // Java sampling doesn't accurately keep up with the sampling rate that is
+ // lower than 1ms.
+ if (javaInterval < 1) {
+ javaInterval = 1;
+ }
+
+ JNIEnv* env = jni::GetEnvForThread();
+ const auto& filters = ActivePS::Filters(aLock);
+ jni::ObjectArray::LocalRef javaFilters =
+ jni::ObjectArray::New<jni::String>(filters.length());
+ for (size_t i = 0; i < filters.length(); i++) {
+ javaFilters->SetElement(i, jni::StringParam(filters[i].data(), env));
+ }
+
+ // Send the interval-relative entry count, but we have 100000 hard cap in
+ // the java code, it can't be more than that.
+ java::GeckoJavaSampler::Start(
+ javaFilters, javaInterval,
+ std::round((double)(capacity.Value()) * interval /
+ (double)(javaInterval)));
+ }
+#endif
+
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ if (ActivePS::FeatureNativeAllocations(aLock)) {
+ if (isMainThreadBeingProfiled) {
+ mozilla::profiler::enable_native_allocations();
+ } else {
+ NS_WARNING(
+ "The nativeallocations feature is turned on, but the main thread is "
+ "not being profiled. The allocations are only stored on the main "
+ "thread.");
+ }
+ }
+#endif
+
+ if (ProfilerFeature::HasAudioCallbackTracing(aFeatures)) {
+ StartAudioCallbackTracing();
+ }
+
+ // At the very end, set up RacyFeatures.
+ RacyFeatures::SetActive(ActivePS::Features(aLock));
+
+ if (profilersHandOver) {
+ PROFILER_MARKER_UNTYPED("Profilers handover", PROFILER,
+ MarkerTiming::IntervalEnd());
+ }
+}
+
+RefPtr<GenericPromise> profiler_start(PowerOfTwo32 aCapacity, double aInterval,
+ uint32_t aFeatures, const char** aFilters,
+ uint32_t aFilterCount,
+ uint64_t aActiveTabID,
+ const Maybe<double>& aDuration) {
+ LOG("profiler_start");
+
+ ProfilerParent::ProfilerWillStopIfStarted();
+
+ SamplerThread* samplerThread = nullptr;
+ {
+ PSAutoLock lock;
+
+ // Initialize if necessary.
+ if (!CorePS::Exists()) {
+ profiler_init(nullptr);
+ }
+
+ // Reset the current state if the profiler is running.
+ if (ActivePS::Exists(lock)) {
+ // Note: Not invoking callbacks with ProfilingState::Stopping, because
+ // we're under lock, and also it would not be useful: Any profiling data
+ // will be discarded, and we're immediately restarting the profiler below
+ // and then notifying ProfilingState::Started.
+ samplerThread = locked_profiler_stop(lock);
+ }
+
+ locked_profiler_start(lock, aCapacity, aInterval, aFeatures, aFilters,
+ aFilterCount, aActiveTabID, aDuration);
+ }
+
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ // Start counting memory allocations (outside of lock because this may call
+ // profiler_add_sampled_counter which would attempt to take the lock.)
+ ActivePS::SetMemoryCounter(mozilla::profiler::install_memory_hooks());
+#endif
+
+ invoke_profiler_state_change_callbacks(ProfilingState::Started);
+
+ // We do these operations with gPSMutex unlocked. The comments in
+ // profiler_stop() explain why.
+ if (samplerThread) {
+ Unused << ProfilerParent::ProfilerStopped();
+ NotifyObservers("profiler-stopped");
+ delete samplerThread;
+ }
+ return NotifyProfilerStarted(aCapacity, aDuration, aInterval, aFeatures,
+ aFilters, aFilterCount, aActiveTabID);
+}
+
+void profiler_ensure_started(PowerOfTwo32 aCapacity, double aInterval,
+ uint32_t aFeatures, const char** aFilters,
+ uint32_t aFilterCount, uint64_t aActiveTabID,
+ const Maybe<double>& aDuration) {
+ LOG("profiler_ensure_started");
+
+ ProfilerParent::ProfilerWillStopIfStarted();
+
+ bool startedProfiler = false;
+ SamplerThread* samplerThread = nullptr;
+ {
+ PSAutoLock lock;
+
+ // Initialize if necessary.
+ if (!CorePS::Exists()) {
+ profiler_init(nullptr);
+ }
+
+ if (ActivePS::Exists(lock)) {
+ // The profiler is active.
+ if (!ActivePS::Equals(lock, aCapacity, aDuration, aInterval, aFeatures,
+ aFilters, aFilterCount, aActiveTabID)) {
+ // Stop and restart with different settings.
+ // Note: Not invoking callbacks with ProfilingState::Stopping, because
+ // we're under lock, and also it would not be useful: Any profiling data
+ // will be discarded, and we're immediately restarting the profiler
+ // below and then notifying ProfilingState::Started.
+ samplerThread = locked_profiler_stop(lock);
+ locked_profiler_start(lock, aCapacity, aInterval, aFeatures, aFilters,
+ aFilterCount, aActiveTabID, aDuration);
+ startedProfiler = true;
+ }
+ } else {
+ // The profiler is stopped.
+ locked_profiler_start(lock, aCapacity, aInterval, aFeatures, aFilters,
+ aFilterCount, aActiveTabID, aDuration);
+ startedProfiler = true;
+ }
+ }
+
+ // We do these operations with gPSMutex unlocked. The comments in
+ // profiler_stop() explain why.
+ if (samplerThread) {
+ Unused << ProfilerParent::ProfilerStopped();
+ NotifyObservers("profiler-stopped");
+ delete samplerThread;
+ }
+
+ if (startedProfiler) {
+ invoke_profiler_state_change_callbacks(ProfilingState::Started);
+
+ Unused << NotifyProfilerStarted(aCapacity, aDuration, aInterval, aFeatures,
+ aFilters, aFilterCount, aActiveTabID);
+ }
+}
+
+[[nodiscard]] static SamplerThread* locked_profiler_stop(PSLockRef aLock) {
+ LOG("locked_profiler_stop");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists() && ActivePS::Exists(aLock));
+
+ // At the very start, clear RacyFeatures.
+ RacyFeatures::SetInactive();
+
+ if (ActivePS::FeatureAudioCallbackTracing(aLock)) {
+ StopAudioCallbackTracing();
+ }
+
+#if defined(GP_OS_android)
+ if (ActivePS::FeatureJava(aLock)) {
+ java::GeckoJavaSampler::Stop();
+ }
+#endif
+
+ // Remove support for pushing/popping labels in mozglue.
+ RegisterProfilerLabelEnterExit(nullptr, nullptr);
+
+ // Stop sampling live threads.
+ ThreadRegistry::LockedRegistry lockedRegistry;
+ for (ThreadRegistry::OffThreadRef offThreadRef : lockedRegistry) {
+ if (offThreadRef.UnlockedRWForLockedProfilerRef().ProfilingFeatures() ==
+ ThreadProfilingFeatures::NotProfiled) {
+ continue;
+ }
+
+ ThreadRegistry::OffThreadRef::RWFromAnyThreadWithLock lockedThreadData =
+ offThreadRef.GetLockedRWFromAnyThread();
+
+ lockedThreadData->ClearProfilingFeaturesAndData(aLock);
+
+ if (ActivePS::FeatureJS(aLock)) {
+ lockedThreadData->StopJSSampling();
+ if (ThreadRegistration::LockedRWOnThread* lockedRWOnThread =
+ lockedThreadData.GetLockedRWOnThread();
+ lockedRWOnThread) {
+ // We are on the thread, we can manually poll the current thread so it
+ // stops profiling immediately.
+ lockedRWOnThread->PollJSSampling();
+ } else if (lockedThreadData->Info().IsMainThread()) {
+ // Dispatch a runnable to the main thread to call PollJSSampling(),
+ // so that we don't have wait for the next JS interrupt callback in
+ // order to start profiling JS.
+ TriggerPollJSSamplingOnMainThread();
+ }
+ }
+ }
+
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ if (ActivePS::FeatureNativeAllocations(aLock)) {
+ mozilla::profiler::disable_native_allocations();
+ }
+#endif
+
+ // The Stop() call doesn't actually stop Run(); that happens in this
+ // function's caller when the sampler thread is destroyed. Stop() just gives
+ // the SamplerThread a chance to do some cleanup with gPSMutex locked.
+ SamplerThread* samplerThread = ActivePS::Destroy(aLock);
+ samplerThread->Stop(aLock);
+
+ if (NS_IsMainThread()) {
+ mozilla::base_profiler_markers_detail::
+ ReleaseBufferForMainThreadAddMarker();
+ } else {
+ NS_DispatchToMainThread(
+ NS_NewRunnableFunction("ReleaseBufferForMainThreadAddMarker",
+ &mozilla::base_profiler_markers_detail::
+ ReleaseBufferForMainThreadAddMarker));
+ }
+
+ return samplerThread;
+}
+
+RefPtr<GenericPromise> profiler_stop() {
+ LOG("profiler_stop");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ if (profiler_is_active()) {
+ invoke_profiler_state_change_callbacks(ProfilingState::Stopping);
+ }
+
+ ProfilerParent::ProfilerWillStopIfStarted();
+
+#if defined(MOZ_REPLACE_MALLOC) && defined(MOZ_PROFILER_MEMORY)
+ // Remove the hooks early, as native allocations (if they are on) can be
+ // quite expensive.
+ mozilla::profiler::remove_memory_hooks();
+#endif
+
+ SamplerThread* samplerThread;
+ {
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return GenericPromise::CreateAndResolve(/* unused */ true, __func__);
+ }
+
+ samplerThread = locked_profiler_stop(lock);
+ }
+
+ // We notify observers with gPSMutex unlocked. Otherwise we might get a
+ // deadlock, if code run by these functions calls a profiler function that
+ // locks gPSMutex, for example when it wants to insert a marker.
+ // (This has been seen in practise in bug 1346356, when we were still firing
+ // these notifications synchronously.)
+ RefPtr<GenericPromise> promise = ProfilerParent::ProfilerStopped();
+ NotifyObservers("profiler-stopped");
+
+ // We delete with gPSMutex unlocked. Otherwise we would get a deadlock: we
+ // would be waiting here with gPSMutex locked for SamplerThread::Run() to
+ // return so the join operation within the destructor can complete, but Run()
+ // needs to lock gPSMutex to return.
+ //
+ // Because this call occurs with gPSMutex unlocked, it -- including the final
+ // iteration of Run()'s loop -- must be able detect deactivation and return
+ // in a way that's safe with respect to other gPSMutex-locking operations
+ // that may have occurred in the meantime.
+ delete samplerThread;
+
+ return promise;
+}
+
+bool profiler_is_paused() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return false;
+ }
+
+ return ActivePS::IsPaused(lock);
+}
+
+/* [[nodiscard]] */ bool profiler_callback_after_sampling(
+ PostSamplingCallback&& aCallback) {
+ LOG("profiler_callback_after_sampling");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ PSAutoLock lock;
+
+ return ActivePS::AppendPostSamplingCallback(lock, std::move(aCallback));
+}
+
+RefPtr<GenericPromise> profiler_pause() {
+ LOG("profiler_pause");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ invoke_profiler_state_change_callbacks(ProfilingState::Pausing);
+
+ {
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return GenericPromise::CreateAndResolve(/* unused */ true, __func__);
+ }
+
+#if defined(GP_OS_android)
+ if (ActivePS::FeatureJava(lock) && !ActivePS::IsSamplingPaused(lock)) {
+ // Not paused yet, so this is the first pause, let Java know.
+ // TODO: Distinguish Pause and PauseSampling in Java.
+ java::GeckoJavaSampler::PauseSampling();
+ }
+#endif
+
+ RacyFeatures::SetPaused();
+ ActivePS::SetIsPaused(lock, true);
+ ActivePS::Buffer(lock).AddEntry(ProfileBufferEntry::Pause(profiler_time()));
+ }
+
+ // gPSMutex must be unlocked when we notify, to avoid potential deadlocks.
+ RefPtr<GenericPromise> promise = ProfilerParent::ProfilerPaused();
+ NotifyObservers("profiler-paused");
+ return promise;
+}
+
+RefPtr<GenericPromise> profiler_resume() {
+ LOG("profiler_resume");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ {
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return GenericPromise::CreateAndResolve(/* unused */ true, __func__);
+ }
+
+ ActivePS::Buffer(lock).AddEntry(
+ ProfileBufferEntry::Resume(profiler_time()));
+ ActivePS::SetIsPaused(lock, false);
+ RacyFeatures::SetUnpaused();
+
+#if defined(GP_OS_android)
+ if (ActivePS::FeatureJava(lock) && !ActivePS::IsSamplingPaused(lock)) {
+ // Not paused anymore, so this is the last unpause, let Java know.
+ // TODO: Distinguish Unpause and UnpauseSampling in Java.
+ java::GeckoJavaSampler::UnpauseSampling();
+ }
+#endif
+ }
+
+ // gPSMutex must be unlocked when we notify, to avoid potential deadlocks.
+ RefPtr<GenericPromise> promise = ProfilerParent::ProfilerResumed();
+ NotifyObservers("profiler-resumed");
+
+ invoke_profiler_state_change_callbacks(ProfilingState::Resumed);
+
+ return promise;
+}
+
+bool profiler_is_sampling_paused() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return false;
+ }
+
+ return ActivePS::IsSamplingPaused(lock);
+}
+
+RefPtr<GenericPromise> profiler_pause_sampling() {
+ LOG("profiler_pause_sampling");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ {
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return GenericPromise::CreateAndResolve(/* unused */ true, __func__);
+ }
+
+#if defined(GP_OS_android)
+ if (ActivePS::FeatureJava(lock) && !ActivePS::IsSamplingPaused(lock)) {
+ // Not paused yet, so this is the first pause, let Java know.
+ // TODO: Distinguish Pause and PauseSampling in Java.
+ java::GeckoJavaSampler::PauseSampling();
+ }
+#endif
+
+ RacyFeatures::SetSamplingPaused();
+ ActivePS::SetIsSamplingPaused(lock, true);
+ ActivePS::Buffer(lock).AddEntry(
+ ProfileBufferEntry::PauseSampling(profiler_time()));
+ }
+
+ // gPSMutex must be unlocked when we notify, to avoid potential deadlocks.
+ RefPtr<GenericPromise> promise = ProfilerParent::ProfilerPausedSampling();
+ NotifyObservers("profiler-paused-sampling");
+ return promise;
+}
+
+RefPtr<GenericPromise> profiler_resume_sampling() {
+ LOG("profiler_resume_sampling");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ {
+ PSAutoLock lock;
+
+ if (!ActivePS::Exists(lock)) {
+ return GenericPromise::CreateAndResolve(/* unused */ true, __func__);
+ }
+
+ ActivePS::Buffer(lock).AddEntry(
+ ProfileBufferEntry::ResumeSampling(profiler_time()));
+ ActivePS::SetIsSamplingPaused(lock, false);
+ RacyFeatures::SetSamplingUnpaused();
+
+#if defined(GP_OS_android)
+ if (ActivePS::FeatureJava(lock) && !ActivePS::IsSamplingPaused(lock)) {
+ // Not paused anymore, so this is the last unpause, let Java know.
+ // TODO: Distinguish Unpause and UnpauseSampling in Java.
+ java::GeckoJavaSampler::UnpauseSampling();
+ }
+#endif
+ }
+
+ // gPSMutex must be unlocked when we notify, to avoid potential deadlocks.
+ RefPtr<GenericPromise> promise = ProfilerParent::ProfilerResumedSampling();
+ NotifyObservers("profiler-resumed-sampling");
+ return promise;
+}
+
+bool profiler_feature_active(uint32_t aFeature) {
+ // This function runs both on and off the main thread.
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ // This function is hot enough that we use RacyFeatures, not ActivePS.
+ return RacyFeatures::IsActiveWithFeature(aFeature);
+}
+
+bool profiler_active_without_feature(uint32_t aFeature) {
+ // This function runs both on and off the main thread.
+
+ // This function is hot enough that we use RacyFeatures, not ActivePS.
+ return RacyFeatures::IsActiveWithoutFeature(aFeature);
+}
+
+void profiler_write_active_configuration(JSONWriter& aWriter) {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+ PSAutoLock lock;
+ ActivePS::WriteActiveConfiguration(lock, aWriter);
+}
+
+void profiler_add_sampled_counter(BaseProfilerCount* aCounter) {
+ DEBUG_LOG("profiler_add_sampled_counter(%s)", aCounter->mLabel);
+ PSAutoLock lock;
+ locked_profiler_add_sampled_counter(lock, aCounter);
+}
+
+void profiler_remove_sampled_counter(BaseProfilerCount* aCounter) {
+ DEBUG_LOG("profiler_remove_sampled_counter(%s)", aCounter->mLabel);
+ PSAutoLock lock;
+ locked_profiler_remove_sampled_counter(lock, aCounter);
+}
+
+ProfilingStack* profiler_register_thread(const char* aName,
+ void* aGuessStackTop) {
+ DEBUG_LOG("profiler_register_thread(%s)", aName);
+
+ // This will call `ThreadRegistry::Register()` (see below).
+ return ThreadRegistration::RegisterThread(aName, aGuessStackTop);
+}
+
+/* static */
+void ThreadRegistry::Register(ThreadRegistration::OnThreadRef aOnThreadRef) {
+ // Set the thread name (except for the main thread, which is controlled
+ // elsewhere, and influences the process name on some systems like Linux).
+ if (!aOnThreadRef.UnlockedConstReaderCRef().Info().IsMainThread()) {
+ // Make sure we have a nsThread wrapper for the current thread, and that
+ // NSPR knows its name.
+ (void)NS_GetCurrentThread();
+ NS_SetCurrentThreadName(
+ aOnThreadRef.UnlockedConstReaderCRef().Info().Name());
+ }
+
+ PSAutoLock lock;
+
+ {
+ RegistryLockExclusive lock{sRegistryMutex};
+ MOZ_RELEASE_ASSERT(sRegistryContainer.append(OffThreadRef{aOnThreadRef}));
+ }
+
+ if (!CorePS::Exists()) {
+ // CorePS has not been created yet.
+ // If&when that happens, it will handle already-registered threads then.
+ return;
+ }
+
+ (void)locked_register_thread(lock, OffThreadRef{aOnThreadRef});
+}
+
+void profiler_unregister_thread() {
+ // This will call `ThreadRegistry::Unregister()` (see below).
+ ThreadRegistration::UnregisterThread();
+}
+
+static void locked_unregister_thread(
+ PSLockRef lock, ThreadRegistration::OnThreadRef aOnThreadRef) {
+ if (!CorePS::Exists()) {
+ // This function can be called after the main thread has already shut
+ // down.
+ return;
+ }
+
+ // We don't call StopJSSampling() here; there's no point doing that for a JS
+ // thread that is in the process of disappearing.
+
+ ThreadRegistration::OnThreadRef::RWOnThreadWithLock lockedThreadData =
+ aOnThreadRef.GetLockedRWOnThread();
+
+ ProfiledThreadData* profiledThreadData =
+ lockedThreadData->GetProfiledThreadData(lock);
+ lockedThreadData->ClearProfilingFeaturesAndData(lock);
+
+ MOZ_RELEASE_ASSERT(
+ lockedThreadData->Info().ThreadId() == profiler_current_thread_id(),
+ "Thread being unregistered has changed its TID");
+
+ DEBUG_LOG("profiler_unregister_thread: %s", lockedThreadData->Info().Name());
+
+ if (profiledThreadData && ActivePS::Exists(lock)) {
+ ActivePS::UnregisterThread(lock, profiledThreadData);
+ }
+}
+
+/* static */
+void ThreadRegistry::Unregister(ThreadRegistration::OnThreadRef aOnThreadRef) {
+ PSAutoLock psLock;
+ locked_unregister_thread(psLock, aOnThreadRef);
+
+ RegistryLockExclusive lock{sRegistryMutex};
+ for (OffThreadRef& thread : sRegistryContainer) {
+ if (thread.IsPointingAt(*aOnThreadRef.mThreadRegistration)) {
+ sRegistryContainer.erase(&thread);
+ break;
+ }
+ }
+}
+
+void profiler_register_page(uint64_t aTabID, uint64_t aInnerWindowID,
+ const nsCString& aUrl,
+ uint64_t aEmbedderInnerWindowID,
+ bool aIsPrivateBrowsing) {
+ DEBUG_LOG("profiler_register_page(%" PRIu64 ", %" PRIu64 ", %s, %" PRIu64
+ ", %s)",
+ aTabID, aInnerWindowID, aUrl.get(), aEmbedderInnerWindowID,
+ aIsPrivateBrowsing ? "true" : "false");
+
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ PSAutoLock lock;
+
+ // When a Browsing context is first loaded, the first url loaded in it will be
+ // about:blank. Because of that, this call keeps the first non-about:blank
+ // registration of window and discards the previous one.
+ RefPtr<PageInformation> pageInfo = new PageInformation(
+ aTabID, aInnerWindowID, aUrl, aEmbedderInnerWindowID, aIsPrivateBrowsing);
+ CorePS::AppendRegisteredPage(lock, std::move(pageInfo));
+
+ // After appending the given page to CorePS, look for the expired
+ // pages and remove them if there are any.
+ if (ActivePS::Exists(lock)) {
+ ActivePS::DiscardExpiredPages(lock);
+ }
+}
+
+void profiler_unregister_page(uint64_t aRegisteredInnerWindowID) {
+ PSAutoLock lock;
+
+ if (!CorePS::Exists()) {
+ // This function can be called after the main thread has already shut down.
+ return;
+ }
+
+ // During unregistration, if the profiler is active, we have to keep the
+ // page information since there may be some markers associated with the given
+ // page. But if profiler is not active. we have no reason to keep the
+ // page information here because there can't be any marker associated with it.
+ if (ActivePS::Exists(lock)) {
+ ActivePS::UnregisterPage(lock, aRegisteredInnerWindowID);
+ } else {
+ CorePS::RemoveRegisteredPage(lock, aRegisteredInnerWindowID);
+ }
+}
+
+void profiler_clear_all_pages() {
+ {
+ PSAutoLock lock;
+
+ if (!CorePS::Exists()) {
+ // This function can be called after the main thread has already shut
+ // down.
+ return;
+ }
+
+ CorePS::ClearRegisteredPages(lock);
+ if (ActivePS::Exists(lock)) {
+ ActivePS::ClearUnregisteredPages(lock);
+ }
+ }
+
+ // gPSMutex must be unlocked when we notify, to avoid potential deadlocks.
+ ProfilerParent::ClearAllPages();
+}
+
+namespace geckoprofiler::markers::detail {
+
+Maybe<uint64_t> profiler_get_inner_window_id_from_docshell(
+ nsIDocShell* aDocshell) {
+ Maybe<uint64_t> innerWindowID = Nothing();
+ if (aDocshell) {
+ auto outerWindow = aDocshell->GetWindow();
+ if (outerWindow) {
+ auto innerWindow = outerWindow->GetCurrentInnerWindow();
+ if (innerWindow) {
+ innerWindowID = Some(innerWindow->WindowID());
+ }
+ }
+ }
+ return innerWindowID;
+}
+
+} // namespace geckoprofiler::markers::detail
+
+namespace geckoprofiler::markers {
+
+struct CPUAwakeMarker {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("Awake");
+ }
+ static void StreamJSONMarkerData(baseprofiler::SpliceableJSONWriter& aWriter,
+ int64_t aCPUId
+#ifdef GP_OS_darwin
+ ,
+ uint32_t aQoS
+#endif
+#ifdef GP_OS_windows
+ ,
+ int32_t aAbsolutePriority,
+ int32_t aRelativePriority,
+ int32_t aCurrentPriority
+#endif
+ ) {
+#ifndef GP_PLAT_arm64_darwin
+ aWriter.IntProperty("CPU Id", aCPUId);
+#endif
+#ifdef GP_OS_windows
+ if (aAbsolutePriority) {
+ aWriter.IntProperty("absPriority", aAbsolutePriority);
+ }
+ if (aCurrentPriority) {
+ aWriter.IntProperty("curPriority", aCurrentPriority);
+ }
+ aWriter.IntProperty("priority", aRelativePriority);
+#endif
+#ifdef GP_OS_darwin
+ const char* QoS = "";
+ switch (aQoS) {
+ case QOS_CLASS_USER_INTERACTIVE:
+ QoS = "User Interactive";
+ break;
+ case QOS_CLASS_USER_INITIATED:
+ QoS = "User Initiated";
+ break;
+ case QOS_CLASS_DEFAULT:
+ QoS = "Default";
+ break;
+ case QOS_CLASS_UTILITY:
+ QoS = "Utility";
+ break;
+ case QOS_CLASS_BACKGROUND:
+ QoS = "Background";
+ break;
+ default:
+ QoS = "Unspecified";
+ }
+
+ aWriter.StringProperty("QoS",
+ ProfilerString8View::WrapNullTerminatedString(QoS));
+#endif
+ }
+
+ static MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::MarkerChart, MS::Location::MarkerTable};
+ schema.AddKeyFormat("CPU Time", MS::Format::Duration);
+#ifndef GP_PLAT_arm64_darwin
+ schema.AddKeyFormat("CPU Id", MS::Format::Integer);
+ schema.SetTableLabel("Awake - CPU Id = {marker.data.CPU Id}");
+#endif
+#ifdef GP_OS_windows
+ schema.AddKeyLabelFormat("priority", "Relative Thread Priority",
+ MS::Format::Integer);
+ schema.AddKeyLabelFormat("absPriority", "Base Thread Priority",
+ MS::Format::Integer);
+ schema.AddKeyLabelFormat("curPriority", "Current Thread Priority",
+ MS::Format::Integer);
+#endif
+#ifdef GP_OS_darwin
+ schema.AddKeyLabelFormat("QoS", "Quality of Service", MS::Format::String);
+#endif
+ return schema;
+ }
+};
+
+struct CPUAwakeMarkerEnd : public CPUAwakeMarker {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("AwakeEnd");
+ }
+ static void StreamJSONMarkerData(baseprofiler::SpliceableJSONWriter& aWriter,
+ int64_t aCPUTimeNs) {
+ if (aCPUTimeNs) {
+ constexpr double NS_PER_MS = 1'000'000;
+ aWriter.DoubleProperty("CPU Time", double(aCPUTimeNs) / NS_PER_MS);
+ }
+ }
+};
+
+} // namespace geckoprofiler::markers
+
+void profiler_mark_thread_asleep() {
+ if (!profiler_thread_is_being_profiled_for_markers()) {
+ return;
+ }
+
+ uint64_t cpuTimeNs = ThreadRegistration::WithOnThreadRefOr(
+ [](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ return aOnThreadRef.UnlockedConstReaderAndAtomicRWRef()
+ .GetNewCpuTimeInNs();
+ },
+ 0);
+ PROFILER_MARKER("Awake", OTHER, MarkerTiming::IntervalEnd(),
+ CPUAwakeMarkerEnd, cpuTimeNs);
+}
+
+void profiler_thread_sleep() {
+ profiler_mark_thread_asleep();
+ ThreadRegistration::WithOnThreadRef(
+ [](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ aOnThreadRef.UnlockedConstReaderAndAtomicRWRef().SetSleeping();
+ });
+}
+
+#if defined(GP_OS_windows)
+# if !defined(__MINGW32__)
+enum {
+ ThreadBasicInformation,
+};
+# endif
+
+struct THREAD_BASIC_INFORMATION {
+ NTSTATUS ExitStatus;
+ PVOID TebBaseAddress;
+ CLIENT_ID ClientId;
+ KAFFINITY AffMask;
+ DWORD Priority;
+ DWORD BasePriority;
+};
+#endif
+
+static mozilla::Atomic<uint64_t, mozilla::MemoryOrdering::Relaxed> gWakeCount(
+ 0);
+
+namespace geckoprofiler::markers {
+struct WakeUpCountMarker {
+ static constexpr Span<const char> MarkerTypeName() {
+ return MakeStringSpan("WakeUpCount");
+ }
+ static void StreamJSONMarkerData(baseprofiler::SpliceableJSONWriter& aWriter,
+ int32_t aCount,
+ const ProfilerString8View& aType) {
+ aWriter.IntProperty("Count", aCount);
+ aWriter.StringProperty("label", aType);
+ }
+ static MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::MarkerChart, MS::Location::MarkerTable};
+ schema.AddKeyFormat("Count", MS::Format::Integer);
+ schema.SetTooltipLabel("{marker.name} - {marker.data.label}");
+ schema.SetTableLabel(
+ "{marker.name} - {marker.data.label}: {marker.data.count}");
+ return schema;
+ }
+};
+} // namespace geckoprofiler::markers
+
+void profiler_record_wakeup_count(const nsACString& aProcessType) {
+ static uint64_t previousThreadWakeCount = 0;
+
+ uint64_t newWakeups = gWakeCount - previousThreadWakeCount;
+ if (newWakeups > 0) {
+ if (newWakeups < std::numeric_limits<int32_t>::max()) {
+ int32_t newWakeups32 = int32_t(newWakeups);
+ mozilla::glean::power::total_thread_wakeups.Add(newWakeups32);
+ mozilla::glean::power::wakeups_per_process_type.Get(aProcessType)
+ .Add(newWakeups32);
+ PROFILER_MARKER("Thread Wake-ups", OTHER, {}, WakeUpCountMarker,
+ newWakeups32, aProcessType);
+ }
+
+ previousThreadWakeCount += newWakeups;
+ }
+
+#ifdef NIGHTLY_BUILD
+ ThreadRegistry::LockedRegistry lockedRegistry;
+ for (ThreadRegistry::OffThreadRef offThreadRef : lockedRegistry) {
+ const ThreadRegistry::UnlockedConstReaderAndAtomicRW& threadData =
+ offThreadRef.UnlockedConstReaderAndAtomicRWRef();
+ threadData.RecordWakeCount();
+ }
+#endif
+}
+
+void profiler_mark_thread_awake() {
+ ++gWakeCount;
+ if (!profiler_thread_is_being_profiled_for_markers()) {
+ return;
+ }
+
+ int64_t cpuId = 0;
+#if defined(GP_OS_windows)
+ cpuId = GetCurrentProcessorNumber();
+#elif defined(GP_OS_darwin)
+# ifdef GP_PLAT_amd64_darwin
+ unsigned int eax, ebx, ecx, edx;
+ __cpuid_count(1, 0, eax, ebx, ecx, edx);
+ // Check if we have an APIC.
+ if ((edx & (1 << 9))) {
+ // APIC ID is bits 24-31 of EBX
+ cpuId = ebx >> 24;
+ }
+# endif
+#else
+ cpuId = sched_getcpu();
+#endif
+
+#if defined(GP_OS_windows)
+ LONG priority;
+ static const auto get_thread_information_fn =
+ reinterpret_cast<decltype(&::GetThreadInformation)>(::GetProcAddress(
+ ::GetModuleHandle(L"Kernel32.dll"), "GetThreadInformation"));
+
+ if (!get_thread_information_fn ||
+ !get_thread_information_fn(GetCurrentThread(), ThreadAbsoluteCpuPriority,
+ &priority, sizeof(priority))) {
+ priority = 0;
+ }
+
+ static const auto nt_query_information_thread_fn =
+ reinterpret_cast<decltype(&::NtQueryInformationThread)>(::GetProcAddress(
+ ::GetModuleHandle(L"ntdll.dll"), "NtQueryInformationThread"));
+
+ LONG currentPriority = 0;
+ if (nt_query_information_thread_fn) {
+ THREAD_BASIC_INFORMATION threadInfo;
+ auto status = (*nt_query_information_thread_fn)(
+ GetCurrentThread(), (THREADINFOCLASS)ThreadBasicInformation,
+ &threadInfo, sizeof(threadInfo), NULL);
+ if (NT_SUCCESS(status)) {
+ currentPriority = threadInfo.Priority;
+ }
+ }
+#endif
+ PROFILER_MARKER(
+ "Awake", OTHER, MarkerTiming::IntervalStart(), CPUAwakeMarker, cpuId
+#if defined(GP_OS_darwin)
+ ,
+ qos_class_self()
+#endif
+#if defined(GP_OS_windows)
+ ,
+ priority, GetThreadPriority(GetCurrentThread()), currentPriority
+#endif
+ );
+}
+
+void profiler_thread_wake() {
+ profiler_mark_thread_awake();
+ ThreadRegistration::WithOnThreadRef(
+ [](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ aOnThreadRef.UnlockedConstReaderAndAtomicRWRef().SetAwake();
+ });
+}
+
+void profiler_js_interrupt_callback() {
+ // This function runs on JS threads being sampled.
+ PollJSSamplingForCurrentThread();
+}
+
+double profiler_time() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ TimeDuration delta = TimeStamp::Now() - CorePS::ProcessStartTime();
+ return delta.ToMilliseconds();
+}
+
+bool profiler_capture_backtrace_into(ProfileChunkedBuffer& aChunkedBuffer,
+ StackCaptureOptions aCaptureOptions) {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ if (!profiler_is_active() ||
+ aCaptureOptions == StackCaptureOptions::NoStack) {
+ return false;
+ }
+
+ return ThreadRegistration::WithOnThreadRefOr(
+ [&](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ mozilla::Maybe<uint32_t> maybeFeatures =
+ RacyFeatures::FeaturesIfActiveAndUnpaused();
+ if (!maybeFeatures) {
+ return false;
+ }
+
+ ProfileBuffer profileBuffer(aChunkedBuffer);
+
+ Registers regs;
+#if defined(HAVE_NATIVE_UNWIND)
+ REGISTERS_SYNC_POPULATE(regs);
+#else
+ regs.Clear();
+#endif
+
+ DoSyncSample(*maybeFeatures,
+ aOnThreadRef.UnlockedReaderAndAtomicRWOnThreadCRef(),
+ TimeStamp::Now(), regs, profileBuffer, aCaptureOptions);
+
+ return true;
+ },
+ // If this was called from a non-registered thread, return false and do no
+ // more work. This can happen from a memory hook.
+ false);
+}
+
+UniquePtr<ProfileChunkedBuffer> profiler_capture_backtrace() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+ AUTO_PROFILER_LABEL("profiler_capture_backtrace", PROFILER);
+
+ // Quick is-active and feature check before allocating a buffer.
+ // If NoMarkerStacks is set, we don't want to capture a backtrace.
+ if (!profiler_active_without_feature(ProfilerFeature::NoMarkerStacks)) {
+ return nullptr;
+ }
+
+ auto buffer = MakeUnique<ProfileChunkedBuffer>(
+ ProfileChunkedBuffer::ThreadSafety::WithoutMutex,
+ MakeUnique<ProfileBufferChunkManagerSingle>(
+ ProfileBufferChunkManager::scExpectedMaximumStackSize));
+
+ if (!profiler_capture_backtrace_into(*buffer, StackCaptureOptions::Full)) {
+ return nullptr;
+ }
+
+ return buffer;
+}
+
+UniqueProfilerBacktrace profiler_get_backtrace() {
+ UniquePtr<ProfileChunkedBuffer> buffer = profiler_capture_backtrace();
+
+ if (!buffer) {
+ return nullptr;
+ }
+
+ return UniqueProfilerBacktrace(
+ new ProfilerBacktrace("SyncProfile", std::move(buffer)));
+}
+
+void ProfilerBacktraceDestructor::operator()(ProfilerBacktrace* aBacktrace) {
+ delete aBacktrace;
+}
+
+bool profiler_is_locked_on_current_thread() {
+ // This function is used to help users avoid calling `profiler_...` functions
+ // when the profiler may already have a lock in place, which would prevent a
+ // 2nd recursive lock (resulting in a crash or a never-ending wait), or a
+ // deadlock between any two mutexes. So we must return `true` for any of:
+ // - The main profiler mutex, used by most functions, and/or
+ // - The buffer mutex, used directly in some functions without locking the
+ // main mutex, e.g., marker-related functions.
+ // - The ProfilerParent or ProfilerChild mutex, used to store and process
+ // buffer chunk updates.
+ return PSAutoLock::IsLockedOnCurrentThread() ||
+ ThreadRegistry::IsRegistryMutexLockedOnCurrentThread() ||
+ ThreadRegistration::IsDataMutexLockedOnCurrentThread() ||
+ profiler_get_core_buffer().IsThreadSafeAndLockedOnCurrentThread() ||
+ ProfilerParent::IsLockedOnCurrentThread() ||
+ ProfilerChild::IsLockedOnCurrentThread();
+}
+
+void profiler_set_js_context(JSContext* aCx) {
+ MOZ_ASSERT(aCx);
+ ThreadRegistration::WithOnThreadRef(
+ [&](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ // The profiler mutex must be locked before the ThreadRegistration's.
+ PSAutoLock lock;
+ aOnThreadRef.WithLockedRWOnThread(
+ [&](ThreadRegistration::LockedRWOnThread& aThreadData) {
+ aThreadData.SetJSContext(aCx);
+
+ if (!ActivePS::Exists(lock) || !ActivePS::FeatureJS(lock)) {
+ return;
+ }
+
+ // This call is on-thread, so we can call PollJSSampling() to
+ // start JS sampling immediately.
+ aThreadData.PollJSSampling();
+
+ if (ProfiledThreadData* profiledThreadData =
+ aThreadData.GetProfiledThreadData(lock);
+ profiledThreadData) {
+ profiledThreadData->NotifyReceivedJSContext(
+ ActivePS::Buffer(lock).BufferRangeEnd());
+ }
+ });
+ });
+}
+
+void profiler_clear_js_context() {
+ MOZ_RELEASE_ASSERT(CorePS::Exists());
+
+ ThreadRegistration::WithOnThreadRef(
+ [](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ JSContext* cx =
+ aOnThreadRef.UnlockedReaderAndAtomicRWOnThreadCRef().GetJSContext();
+ if (!cx) {
+ return;
+ }
+
+ // The profiler mutex must be locked before the ThreadRegistration's.
+ PSAutoLock lock;
+ ThreadRegistration::OnThreadRef::RWOnThreadWithLock lockedThreadData =
+ aOnThreadRef.GetLockedRWOnThread();
+
+ if (ProfiledThreadData* profiledThreadData =
+ lockedThreadData->GetProfiledThreadData(lock);
+ profiledThreadData && ActivePS::Exists(lock) &&
+ ActivePS::FeatureJS(lock)) {
+ profiledThreadData->NotifyAboutToLoseJSContext(
+ cx, CorePS::ProcessStartTime(), ActivePS::Buffer(lock));
+
+ // Notify the JS context that profiling for this context has
+ // stopped. Do this by calling StopJSSampling and PollJSSampling
+ // before nulling out the JSContext.
+ lockedThreadData->StopJSSampling();
+ lockedThreadData->PollJSSampling();
+
+ lockedThreadData->ClearJSContext();
+
+ // Tell the thread that we'd like to have JS sampling on this
+ // thread again, once it gets a new JSContext (if ever).
+ lockedThreadData->StartJSSampling(ActivePS::JSFlags(lock));
+ } else {
+ // This thread is not being profiled or JS profiling is off, we only
+ // need to clear the context pointer.
+ lockedThreadData->ClearJSContext();
+ }
+ });
+}
+
+static void profiler_suspend_and_sample_thread(
+ const PSAutoLock* aLockIfAsynchronousSampling,
+ const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread& aThreadData,
+ JsFrame* aJsFrames, uint32_t aFeatures, ProfilerStackCollector& aCollector,
+ bool aSampleNative) {
+ const ThreadRegistrationInfo& info = aThreadData.Info();
+
+ if (info.IsMainThread()) {
+ aCollector.SetIsMainThread();
+ }
+
+ // Allocate the space for the native stack
+ NativeStack nativeStack;
+
+ auto collectStack = [&](const Registers& aRegs, const TimeStamp& aNow) {
+ // The target thread is now suspended. Collect a native backtrace,
+ // and call the callback.
+ StackWalkControl* stackWalkControlIfSupported = nullptr;
+#if defined(HAVE_FASTINIT_NATIVE_UNWIND)
+ StackWalkControl stackWalkControl;
+ if constexpr (StackWalkControl::scIsSupported) {
+ if (aSampleNative) {
+ stackWalkControlIfSupported = &stackWalkControl;
+ }
+ }
+#endif
+ const uint32_t jsFramesCount =
+ aJsFrames ? ExtractJsFrames(!aLockIfAsynchronousSampling, aThreadData,
+ aRegs, aCollector, aJsFrames,
+ stackWalkControlIfSupported)
+ : 0;
+
+#if defined(HAVE_FASTINIT_NATIVE_UNWIND)
+ if (aSampleNative) {
+ // We can only use FramePointerStackWalk or MozStackWalk from
+ // suspend_and_sample_thread as other stackwalking methods may not be
+ // initialized.
+# if defined(USE_FRAME_POINTER_STACK_WALK)
+ DoFramePointerBacktrace(aThreadData, aRegs, nativeStack,
+ stackWalkControlIfSupported);
+# elif defined(USE_MOZ_STACK_WALK)
+ DoMozStackWalkBacktrace(aThreadData, aRegs, nativeStack,
+ stackWalkControlIfSupported);
+# else
+# error "Invalid configuration"
+# endif
+
+ MergeStacks(aFeatures, !aLockIfAsynchronousSampling, aThreadData, aRegs,
+ nativeStack, aCollector, aJsFrames, jsFramesCount);
+ } else
+#endif
+ {
+ MergeStacks(aFeatures, !aLockIfAsynchronousSampling, aThreadData, aRegs,
+ nativeStack, aCollector, aJsFrames, jsFramesCount);
+
+ aCollector.CollectNativeLeafAddr((void*)aRegs.mPC);
+ }
+ };
+
+ if (!aLockIfAsynchronousSampling) {
+ // Sampling the current thread, do NOT suspend it!
+ Registers regs;
+#if defined(HAVE_NATIVE_UNWIND)
+ REGISTERS_SYNC_POPULATE(regs);
+#else
+ regs.Clear();
+#endif
+ collectStack(regs, TimeStamp::Now());
+ } else {
+ // Suspend, sample, and then resume the target thread.
+ Sampler sampler(*aLockIfAsynchronousSampling);
+ TimeStamp now = TimeStamp::Now();
+ sampler.SuspendAndSampleAndResumeThread(*aLockIfAsynchronousSampling,
+ aThreadData, now, collectStack);
+
+ // NOTE: Make sure to disable the sampler before it is destroyed, in
+ // case the profiler is running at the same time.
+ sampler.Disable(*aLockIfAsynchronousSampling);
+ }
+}
+
+// NOTE: aCollector's methods will be called while the target thread is paused.
+// Doing things in those methods like allocating -- which may try to claim
+// locks -- is a surefire way to deadlock.
+void profiler_suspend_and_sample_thread(ProfilerThreadId aThreadId,
+ uint32_t aFeatures,
+ ProfilerStackCollector& aCollector,
+ bool aSampleNative /* = true */) {
+ if (!aThreadId.IsSpecified() || aThreadId == profiler_current_thread_id()) {
+ // Sampling the current thread. Get its information from the TLS (no locking
+ // required.)
+ ThreadRegistration::WithOnThreadRef(
+ [&](ThreadRegistration::OnThreadRef aOnThreadRef) {
+ aOnThreadRef.WithUnlockedReaderAndAtomicRWOnThread(
+ [&](const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread&
+ aThreadData) {
+ if (!aThreadData.GetJSContext()) {
+ // No JSContext, there is no JS frame buffer (and no need for
+ // it).
+ profiler_suspend_and_sample_thread(
+ /* aLockIfAsynchronousSampling = */ nullptr, aThreadData,
+ /* aJsFrames = */ nullptr, aFeatures, aCollector,
+ aSampleNative);
+ } else {
+ // JSContext is present, we need to lock the thread data to
+ // access the JS frame buffer.
+ aOnThreadRef.WithConstLockedRWOnThread(
+ [&](const ThreadRegistration::LockedRWOnThread&
+ aLockedThreadData) {
+ profiler_suspend_and_sample_thread(
+ /* aLockIfAsynchronousSampling = */ nullptr,
+ aThreadData, aLockedThreadData.GetJsFrameBuffer(),
+ aFeatures, aCollector, aSampleNative);
+ });
+ }
+ });
+ });
+ } else {
+ // Lock the profiler before accessing the ThreadRegistry.
+ PSAutoLock lock;
+ ThreadRegistry::WithOffThreadRef(
+ aThreadId, [&](ThreadRegistry::OffThreadRef aOffThreadRef) {
+ aOffThreadRef.WithLockedRWFromAnyThread(
+ [&](const ThreadRegistration::UnlockedReaderAndAtomicRWOnThread&
+ aThreadData) {
+ JsFrameBuffer& jsFrames = CorePS::JsFrames(lock);
+ profiler_suspend_and_sample_thread(&lock, aThreadData, jsFrames,
+ aFeatures, aCollector,
+ aSampleNative);
+ });
+ });
+ }
+}
+
+// END externally visible functions
+////////////////////////////////////////////////////////////////////////
diff --git a/tools/profiler/core/platform.h b/tools/profiler/core/platform.h
new file mode 100644
index 0000000000..59d2c7ff42
--- /dev/null
+++ b/tools/profiler/core/platform.h
@@ -0,0 +1,381 @@
+// Copyright (c) 2006-2011 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in
+// the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google, Inc. nor the names of its contributors
+// may be used to endorse or promote products derived from this
+// software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+#ifndef TOOLS_PLATFORM_H_
+#define TOOLS_PLATFORM_H_
+
+#include "PlatformMacros.h"
+
+#include "json/json.h"
+#include "mozilla/Atomics.h"
+#include "mozilla/BaseProfilerDetail.h"
+#include "mozilla/Logging.h"
+#include "mozilla/MathAlgorithms.h"
+#include "mozilla/ProfileBufferEntrySerialization.h"
+#include "mozilla/ProfileJSONWriter.h"
+#include "mozilla/ProfilerUtils.h"
+#include "mozilla/ProgressLogger.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Vector.h"
+#include "nsString.h"
+#include "shared-libraries.h"
+
+#include <cstddef>
+#include <cstdint>
+#include <functional>
+
+class ProfilerCodeAddressService;
+
+namespace mozilla {
+struct SymbolTable;
+}
+
+extern mozilla::LazyLogModule gProfilerLog;
+
+// These are for MOZ_LOG="prof:3" or higher. It's the default logging level for
+// the profiler, and should be used sparingly.
+#define LOG_TEST MOZ_LOG_TEST(gProfilerLog, mozilla::LogLevel::Info)
+#define LOG(arg, ...) \
+ MOZ_LOG(gProfilerLog, mozilla::LogLevel::Info, \
+ ("[%" PRIu64 "] " arg, \
+ uint64_t(profiler_current_process_id().ToNumber()), ##__VA_ARGS__))
+
+// These are for MOZ_LOG="prof:4" or higher. It should be used for logging that
+// is somewhat more verbose than LOG.
+#define DEBUG_LOG_TEST MOZ_LOG_TEST(gProfilerLog, mozilla::LogLevel::Debug)
+#define DEBUG_LOG(arg, ...) \
+ MOZ_LOG(gProfilerLog, mozilla::LogLevel::Debug, \
+ ("[%" PRIu64 "] " arg, \
+ uint64_t(profiler_current_process_id().ToNumber()), ##__VA_ARGS__))
+
+typedef uint8_t* Address;
+
+// Stringify the given JSON value, in the most compact format.
+// Note: Numbers are limited to a precision of 6 decimal digits, so that
+// timestamps in ms have a precision in ns.
+Json::String ToCompactString(const Json::Value& aJsonValue);
+
+// Profiling log stored in a Json::Value. The actual log only exists while the
+// profiler is running, and will be inserted at the end of the JSON profile.
+class ProfilingLog {
+ public:
+ // These will be called by ActivePS when the profiler starts/stops.
+ static void Init();
+ static void Destroy();
+
+ // Access the profiling log JSON object, in order to modify it.
+ // Only calls the given function if the profiler is active.
+ // Thread-safe. But `aF` must not call other locking profiler functions.
+ // This is intended to capture some internal logging that doesn't belong in
+ // other places like markers. The log is accessible through the JS console on
+ // profiler.firefox.com, in the `profile.profilingLog` object; the data format
+ // is intentionally not defined, and not intended to be shown in the
+ // front-end.
+ // Please use caution not to output too much data.
+ template <typename F>
+ static void Access(F&& aF) {
+ mozilla::baseprofiler::detail::BaseProfilerAutoLock lock{gMutex};
+ if (gLog) {
+ std::forward<F>(aF)(*gLog);
+ }
+ }
+
+#define DURATION_JSON_SUFFIX "_ms"
+
+ // Convert a TimeDuration to the value to be stored in the log.
+ // Use DURATION_JSON_SUFFIX as suffix in the property name.
+ static Json::Value Duration(const mozilla::TimeDuration& aDuration) {
+ return Json::Value{aDuration.ToMilliseconds()};
+ }
+
+#define TIMESTAMP_JSON_SUFFIX "_TSms"
+
+ // Convert a TimeStamp to the value to be stored in the log.
+ // Use TIMESTAMP_JSON_SUFFIX as suffix in the property name.
+ static Json::Value Timestamp(
+ const mozilla::TimeStamp& aTimestamp = mozilla::TimeStamp::Now()) {
+ if (aTimestamp.IsNull()) {
+ return Json::Value{0.0};
+ }
+ return Duration(aTimestamp - mozilla::TimeStamp::ProcessCreation());
+ }
+
+ static bool IsLockedOnCurrentThread();
+
+ private:
+ static mozilla::baseprofiler::detail::BaseProfilerMutex gMutex;
+ static mozilla::UniquePtr<Json::Value> gLog;
+};
+
+// ----------------------------------------------------------------------------
+// Miscellaneous
+
+// If positive, skip stack-sampling in the sampler thread loop.
+// Users should increment it atomically when samplings should be avoided, and
+// later decrement it back. Multiple uses can overlap.
+// There could be a sampling in progress when this is first incremented, so if
+// it is critical to prevent any sampling, lock the profiler mutex instead.
+// Relaxed ordering, because it's used to request that the profiler pause
+// future sampling; this is not time critical, nor dependent on anything else.
+extern mozilla::Atomic<int, mozilla::MemoryOrdering::Relaxed> gSkipSampling;
+
+void AppendSharedLibraries(mozilla::JSONWriter& aWriter,
+ const SharedLibraryInfo& aInfo);
+
+// Convert the array of strings to a bitfield.
+uint32_t ParseFeaturesFromStringArray(const char** aFeatures,
+ uint32_t aFeatureCount,
+ bool aIsStartup = false);
+
+// Add the begin/end 'Awake' markers for the thread.
+void profiler_mark_thread_awake();
+
+void profiler_mark_thread_asleep();
+
+[[nodiscard]] bool profiler_get_profile_json(
+ SpliceableChunkedJSONWriter& aSpliceableChunkedJSONWriter,
+ double aSinceTime, bool aIsShuttingDown,
+ mozilla::ProgressLogger aProgressLogger);
+
+// Flags to conveniently track various JS instrumentations.
+enum class JSInstrumentationFlags {
+ StackSampling = 0x1,
+ Allocations = 0x2,
+};
+
+// Write out the information of the active profiling configuration.
+void profiler_write_active_configuration(mozilla::JSONWriter& aWriter);
+
+// Extract all received exit profiles that have not yet expired (i.e., they
+// still intersect with this process' buffer range).
+mozilla::Vector<nsCString> profiler_move_exit_profiles();
+
+// If the "MOZ_PROFILER_SYMBOLICATE" env-var is set, we return a new
+// ProfilerCodeAddressService object to use for local symbolication of profiles.
+// This is off by default, and mainly intended for local development.
+mozilla::UniquePtr<ProfilerCodeAddressService>
+profiler_code_address_service_for_presymbolication();
+
+extern "C" {
+// This function is defined in the profiler rust module at
+// tools/profiler/rust-helper. mozilla::SymbolTable and CompactSymbolTable
+// have identical memory layout.
+bool profiler_get_symbol_table(const char* debug_path, const char* breakpad_id,
+ mozilla::SymbolTable* symbol_table);
+
+bool profiler_demangle_rust(const char* mangled, char* buffer, size_t len);
+}
+
+// For each running times value, call MACRO(index, name, unit, jsonProperty)
+#define PROFILER_FOR_EACH_RUNNING_TIME(MACRO) \
+ MACRO(0, ThreadCPU, Delta, threadCPUDelta)
+
+// This class contains all "running times" such as CPU usage measurements.
+// All measurements are listed in `PROFILER_FOR_EACH_RUNNING_TIME` above.
+// Each measurement is optional and only takes a value when explicitly set.
+// Two RunningTimes object may be subtracted, to get the difference between
+// known values.
+class RunningTimes {
+ public:
+ constexpr RunningTimes() = default;
+
+ // Constructor with only a timestamp, useful when no measurements will be
+ // taken.
+ constexpr explicit RunningTimes(const mozilla::TimeStamp& aTimeStamp)
+ : mPostMeasurementTimeStamp(aTimeStamp) {}
+
+ constexpr void Clear() { *this = RunningTimes{}; }
+
+ constexpr bool IsEmpty() const { return mKnownBits == 0; }
+
+ // This should be called right after CPU measurements have been taken.
+ void SetPostMeasurementTimeStamp(const mozilla::TimeStamp& aTimeStamp) {
+ mPostMeasurementTimeStamp = aTimeStamp;
+ }
+
+ const mozilla::TimeStamp& PostMeasurementTimeStamp() const {
+ return mPostMeasurementTimeStamp;
+ }
+
+ // Should be filled for any registered thread.
+
+#define RUNNING_TIME_MEMBER(index, name, unit, jsonProperty) \
+ constexpr bool Is##name##unit##Known() const { \
+ return (mKnownBits & mGot##name##unit) != 0; \
+ } \
+ \
+ constexpr void Clear##name##unit() { \
+ m##name##unit = 0; \
+ mKnownBits &= ~mGot##name##unit; \
+ } \
+ \
+ constexpr void Reset##name##unit(uint64_t a##name##unit) { \
+ m##name##unit = a##name##unit; \
+ mKnownBits |= mGot##name##unit; \
+ } \
+ \
+ constexpr void Set##name##unit(uint64_t a##name##unit) { \
+ MOZ_ASSERT(!Is##name##unit##Known(), #name #unit " already set"); \
+ Reset##name##unit(a##name##unit); \
+ } \
+ \
+ constexpr mozilla::Maybe<uint64_t> Get##name##unit() const { \
+ if (Is##name##unit##Known()) { \
+ return mozilla::Some(m##name##unit); \
+ } \
+ return mozilla::Nothing{}; \
+ } \
+ \
+ constexpr mozilla::Maybe<uint64_t> GetJson##name##unit() const { \
+ if (Is##name##unit##Known()) { \
+ return mozilla::Some(ConvertRawToJson(m##name##unit)); \
+ } \
+ return mozilla::Nothing{}; \
+ }
+
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_MEMBER)
+
+#undef RUNNING_TIME_MEMBER
+
+ // Take values from another RunningTimes.
+ RunningTimes& TakeFrom(RunningTimes& aOther) {
+ if (!aOther.IsEmpty()) {
+#define RUNNING_TIME_TAKE(index, name, unit, jsonProperty) \
+ if (aOther.Is##name##unit##Known()) { \
+ Set##name##unit(std::exchange(aOther.m##name##unit, 0)); \
+ }
+
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_TAKE)
+
+#undef RUNNING_TIME_TAKE
+
+ aOther.mKnownBits = 0;
+ }
+ return *this;
+ }
+
+ // Difference from `aBefore` to `this`. Any unknown makes the result unknown.
+ // PostMeasurementTimeStamp set to `this` PostMeasurementTimeStamp, to keep
+ // the most recent timestamp associated with the end of the interval over
+ // which the difference applies.
+ RunningTimes operator-(const RunningTimes& aBefore) const {
+ RunningTimes diff;
+ diff.mPostMeasurementTimeStamp = mPostMeasurementTimeStamp;
+#define RUNNING_TIME_SUB(index, name, unit, jsonProperty) \
+ if (Is##name##unit##Known() && aBefore.Is##name##unit##Known()) { \
+ diff.Set##name##unit(m##name##unit - aBefore.m##name##unit); \
+ }
+
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_SUB)
+
+#undef RUNNING_TIME_SUB
+ return diff;
+ }
+
+ private:
+ friend mozilla::ProfileBufferEntryWriter::Serializer<RunningTimes>;
+ friend mozilla::ProfileBufferEntryReader::Deserializer<RunningTimes>;
+
+ // Platform-dependent.
+ static uint64_t ConvertRawToJson(uint64_t aRawValue);
+
+ mozilla::TimeStamp mPostMeasurementTimeStamp;
+
+ uint32_t mKnownBits = 0u;
+
+#define RUNNING_TIME_MEMBER(index, name, unit, jsonProperty) \
+ static constexpr uint32_t mGot##name##unit = 1u << index; \
+ uint64_t m##name##unit = 0;
+
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_MEMBER)
+
+#undef RUNNING_TIME_MEMBER
+};
+
+template <>
+struct mozilla::ProfileBufferEntryWriter::Serializer<RunningTimes> {
+ static Length Bytes(const RunningTimes& aRunningTimes) {
+ Length bytes = 0;
+
+#define RUNNING_TIME_SERIALIZATION_BYTES(index, name, unit, jsonProperty) \
+ if (aRunningTimes.Is##name##unit##Known()) { \
+ bytes += ULEB128Size(aRunningTimes.m##name##unit); \
+ }
+
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_SERIALIZATION_BYTES)
+
+#undef RUNNING_TIME_SERIALIZATION_BYTES
+ return ULEB128Size(aRunningTimes.mKnownBits) + bytes;
+ }
+
+ static void Write(ProfileBufferEntryWriter& aEW,
+ const RunningTimes& aRunningTimes) {
+ aEW.WriteULEB128(aRunningTimes.mKnownBits);
+
+#define RUNNING_TIME_SERIALIZE(index, name, unit, jsonProperty) \
+ if (aRunningTimes.Is##name##unit##Known()) { \
+ aEW.WriteULEB128(aRunningTimes.m##name##unit); \
+ }
+
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_SERIALIZE)
+
+#undef RUNNING_TIME_SERIALIZE
+ }
+};
+
+template <>
+struct mozilla::ProfileBufferEntryReader::Deserializer<RunningTimes> {
+ static void ReadInto(ProfileBufferEntryReader& aER,
+ RunningTimes& aRunningTimes) {
+ aRunningTimes = Read(aER);
+ }
+
+ static RunningTimes Read(ProfileBufferEntryReader& aER) {
+ // Start with empty running times, everything is cleared.
+ RunningTimes times;
+
+ // This sets all the bits into mKnownBits, we don't need to modify it
+ // further.
+ times.mKnownBits = aER.ReadULEB128<uint32_t>();
+
+ // For each member that should be known, read its value.
+#define RUNNING_TIME_DESERIALIZE(index, name, unit, jsonProperty) \
+ if (times.Is##name##unit##Known()) { \
+ times.m##name##unit = aER.ReadULEB128<decltype(times.m##name##unit)>(); \
+ }
+
+ PROFILER_FOR_EACH_RUNNING_TIME(RUNNING_TIME_DESERIALIZE)
+
+#undef RUNNING_TIME_DESERIALIZE
+
+ return times;
+ }
+};
+
+#endif /* ndef TOOLS_PLATFORM_H_ */
diff --git a/tools/profiler/core/shared-libraries-linux.cc b/tools/profiler/core/shared-libraries-linux.cc
new file mode 100644
index 0000000000..2991e64909
--- /dev/null
+++ b/tools/profiler/core/shared-libraries-linux.cc
@@ -0,0 +1,280 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "shared-libraries.h"
+
+#define PATH_MAX_TOSTRING(x) #x
+#define PATH_MAX_STRING(x) PATH_MAX_TOSTRING(x)
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <unistd.h>
+#include <fstream>
+#include "platform.h"
+#include "shared-libraries.h"
+#include "GeckoProfiler.h"
+#include "mozilla/Sprintf.h"
+#include "mozilla/Unused.h"
+#include "nsDebug.h"
+#include "nsNativeCharsetUtils.h"
+#include <nsTArray.h>
+
+#include "common/linux/file_id.h"
+#include <algorithm>
+#include <dlfcn.h>
+#if defined(GP_OS_linux) || defined(GP_OS_android)
+# include <features.h>
+#endif
+#include <sys/types.h>
+
+#if defined(GP_OS_linux) || defined(GP_OS_android) || defined(GP_OS_freebsd)
+# include <link.h> // dl_phdr_info
+#else
+# error "Unexpected configuration"
+#endif
+
+#if defined(GP_OS_android)
+extern "C" MOZ_EXPORT __attribute__((weak)) int dl_iterate_phdr(
+ int (*callback)(struct dl_phdr_info* info, size_t size, void* data),
+ void* data);
+#endif
+
+struct LoadedLibraryInfo {
+ LoadedLibraryInfo(const char* aName, unsigned long aBaseAddress,
+ unsigned long aFirstMappingStart,
+ unsigned long aLastMappingEnd)
+ : mName(aName),
+ mBaseAddress(aBaseAddress),
+ mFirstMappingStart(aFirstMappingStart),
+ mLastMappingEnd(aLastMappingEnd) {}
+
+ nsCString mName;
+ unsigned long mBaseAddress;
+ unsigned long mFirstMappingStart;
+ unsigned long mLastMappingEnd;
+};
+
+static nsCString IDtoUUIDString(
+ const google_breakpad::wasteful_vector<uint8_t>& aIdentifier) {
+ using namespace google_breakpad;
+
+ nsCString uuid;
+ const std::string str = FileID::ConvertIdentifierToUUIDString(aIdentifier);
+ uuid.Append(str.c_str(), str.size());
+ // This is '0', not '\0', since it represents the breakpad id age.
+ uuid.Append('0');
+ return uuid;
+}
+
+// Return raw Build ID in hex.
+static nsCString IDtoString(
+ const google_breakpad::wasteful_vector<uint8_t>& aIdentifier) {
+ using namespace google_breakpad;
+
+ nsCString uuid;
+ const std::string str = FileID::ConvertIdentifierToString(aIdentifier);
+ uuid.Append(str.c_str(), str.size());
+ return uuid;
+}
+
+// Get the breakpad Id for the binary file pointed by bin_name
+static nsCString getBreakpadId(const char* bin_name) {
+ using namespace google_breakpad;
+
+ PageAllocator allocator;
+ auto_wasteful_vector<uint8_t, kDefaultBuildIdSize> identifier(&allocator);
+
+ FileID file_id(bin_name);
+ if (file_id.ElfFileIdentifier(identifier)) {
+ return IDtoUUIDString(identifier);
+ }
+
+ return ""_ns;
+}
+
+// Get the code Id for the binary file pointed by bin_name
+static nsCString getCodeId(const char* bin_name) {
+ using namespace google_breakpad;
+
+ PageAllocator allocator;
+ auto_wasteful_vector<uint8_t, kDefaultBuildIdSize> identifier(&allocator);
+
+ FileID file_id(bin_name);
+ if (file_id.ElfFileIdentifier(identifier)) {
+ return IDtoString(identifier);
+ }
+
+ return ""_ns;
+}
+
+static SharedLibrary SharedLibraryAtPath(const char* path,
+ unsigned long libStart,
+ unsigned long libEnd,
+ unsigned long offset = 0) {
+ nsAutoString pathStr;
+ mozilla::Unused << NS_WARN_IF(
+ NS_FAILED(NS_CopyNativeToUnicode(nsDependentCString(path), pathStr)));
+
+ nsAutoString nameStr = pathStr;
+ int32_t pos = nameStr.RFindChar('/');
+ if (pos != kNotFound) {
+ nameStr.Cut(0, pos + 1);
+ }
+
+ return SharedLibrary(libStart, libEnd, offset, getBreakpadId(path),
+ getCodeId(path), nameStr, pathStr, nameStr, pathStr,
+ ""_ns, "");
+}
+
+static int dl_iterate_callback(struct dl_phdr_info* dl_info, size_t size,
+ void* data) {
+ auto libInfoList = reinterpret_cast<nsTArray<LoadedLibraryInfo>*>(data);
+
+ if (dl_info->dlpi_phnum <= 0) return 0;
+
+ unsigned long baseAddress = dl_info->dlpi_addr;
+ unsigned long firstMappingStart = -1;
+ unsigned long lastMappingEnd = 0;
+
+ for (size_t i = 0; i < dl_info->dlpi_phnum; i++) {
+ if (dl_info->dlpi_phdr[i].p_type != PT_LOAD) {
+ continue;
+ }
+ unsigned long start = dl_info->dlpi_addr + dl_info->dlpi_phdr[i].p_vaddr;
+ unsigned long end = start + dl_info->dlpi_phdr[i].p_memsz;
+ if (start < firstMappingStart) {
+ firstMappingStart = start;
+ }
+ if (end > lastMappingEnd) {
+ lastMappingEnd = end;
+ }
+ }
+
+ libInfoList->AppendElement(LoadedLibraryInfo(
+ dl_info->dlpi_name, baseAddress, firstMappingStart, lastMappingEnd));
+
+ return 0;
+}
+
+SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf() {
+ SharedLibraryInfo info;
+
+#if defined(GP_OS_linux)
+ // We need to find the name of the executable (exeName, exeNameLen) and the
+ // address of its executable section (exeExeAddr) in the running image.
+ char exeName[PATH_MAX];
+ memset(exeName, 0, sizeof(exeName));
+
+ ssize_t exeNameLen = readlink("/proc/self/exe", exeName, sizeof(exeName) - 1);
+ if (exeNameLen == -1) {
+ // readlink failed for whatever reason. Note this, but keep going.
+ exeName[0] = '\0';
+ exeNameLen = 0;
+ LOG("SharedLibraryInfo::GetInfoForSelf(): readlink failed");
+ } else {
+ // Assert no buffer overflow.
+ MOZ_RELEASE_ASSERT(exeNameLen >= 0 &&
+ exeNameLen < static_cast<ssize_t>(sizeof(exeName)));
+ }
+
+ unsigned long exeExeAddr = 0;
+#endif
+
+#if defined(GP_OS_android)
+ // If dl_iterate_phdr doesn't exist, we give up immediately.
+ if (!dl_iterate_phdr) {
+ // On ARM Android, dl_iterate_phdr is provided by the custom linker.
+ // So if libxul was loaded by the system linker (e.g. as part of
+ // xpcshell when running tests), it won't be available and we should
+ // not call it.
+ return info;
+ }
+#endif
+
+#if defined(GP_OS_linux) || defined(GP_OS_android)
+ // Read info from /proc/self/maps. We ignore most of it.
+ pid_t pid = profiler_current_process_id().ToNumber();
+ char path[PATH_MAX];
+ SprintfLiteral(path, "/proc/%d/maps", pid);
+ std::ifstream maps(path);
+ std::string line;
+ while (std::getline(maps, line)) {
+ int ret;
+ unsigned long start;
+ unsigned long end;
+ char perm[6 + 1] = "";
+ unsigned long offset;
+ char modulePath[PATH_MAX + 1] = "";
+ ret = sscanf(line.c_str(),
+ "%lx-%lx %6s %lx %*s %*x %" PATH_MAX_STRING(PATH_MAX) "s\n",
+ &start, &end, perm, &offset, modulePath);
+ if (!strchr(perm, 'x')) {
+ // Ignore non executable entries
+ continue;
+ }
+ if (ret != 5 && ret != 4) {
+ LOG("SharedLibraryInfo::GetInfoForSelf(): "
+ "reading /proc/self/maps failed");
+ continue;
+ }
+
+# if defined(GP_OS_linux)
+ // Try to establish the main executable's load address.
+ if (exeNameLen > 0 && strcmp(modulePath, exeName) == 0) {
+ exeExeAddr = start;
+ }
+# elif defined(GP_OS_android)
+ // Use /proc/pid/maps to get the dalvik-jit section since it has no
+ // associated phdrs.
+ if (0 == strcmp(modulePath, "/dev/ashmem/dalvik-jit-code-cache")) {
+ info.AddSharedLibrary(
+ SharedLibraryAtPath(modulePath, start, end, offset));
+ if (info.GetSize() > 10000) {
+ LOG("SharedLibraryInfo::GetInfoForSelf(): "
+ "implausibly large number of mappings acquired");
+ break;
+ }
+ }
+# endif
+ }
+#endif
+
+ nsTArray<LoadedLibraryInfo> libInfoList;
+
+ // We collect the bulk of the library info using dl_iterate_phdr.
+ dl_iterate_phdr(dl_iterate_callback, &libInfoList);
+
+ for (const auto& libInfo : libInfoList) {
+ info.AddSharedLibrary(
+ SharedLibraryAtPath(libInfo.mName.get(), libInfo.mFirstMappingStart,
+ libInfo.mLastMappingEnd,
+ libInfo.mFirstMappingStart - libInfo.mBaseAddress));
+ }
+
+#if defined(GP_OS_linux)
+ // Make another pass over the information we just harvested from
+ // dl_iterate_phdr. If we see a nameless object mapped at what we earlier
+ // established to be the main executable's load address, attach the
+ // executable's name to that entry.
+ for (size_t i = 0; i < info.GetSize(); i++) {
+ SharedLibrary& lib = info.GetMutableEntry(i);
+ if (lib.GetStart() <= exeExeAddr && exeExeAddr <= lib.GetEnd() &&
+ lib.GetNativeDebugPath().empty()) {
+ lib = SharedLibraryAtPath(exeName, lib.GetStart(), lib.GetEnd(),
+ lib.GetOffset());
+
+ // We only expect to see one such entry.
+ break;
+ }
+ }
+#endif
+
+ return info;
+}
+
+void SharedLibraryInfo::Initialize() { /* do nothing */
+}
diff --git a/tools/profiler/core/shared-libraries-macos.cc b/tools/profiler/core/shared-libraries-macos.cc
new file mode 100644
index 0000000000..415fda3633
--- /dev/null
+++ b/tools/profiler/core/shared-libraries-macos.cc
@@ -0,0 +1,211 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "shared-libraries.h"
+
+#include "ClearOnShutdown.h"
+#include "mozilla/StaticMutex.h"
+#include "mozilla/Unused.h"
+#include "nsNativeCharsetUtils.h"
+#include <AvailabilityMacros.h>
+
+#include <dlfcn.h>
+#include <mach-o/arch.h>
+#include <mach-o/dyld_images.h>
+#include <mach-o/dyld.h>
+#include <mach-o/loader.h>
+#include <mach/mach_init.h>
+#include <mach/mach_traps.h>
+#include <mach/task_info.h>
+#include <mach/task.h>
+#include <sstream>
+#include <stdlib.h>
+#include <string.h>
+#include <vector>
+
+// Architecture specific abstraction.
+#if defined(GP_ARCH_x86)
+typedef mach_header platform_mach_header;
+typedef segment_command mach_segment_command_type;
+# define MACHO_MAGIC_NUMBER MH_MAGIC
+# define CMD_SEGMENT LC_SEGMENT
+# define seg_size uint32_t
+#else
+typedef mach_header_64 platform_mach_header;
+typedef segment_command_64 mach_segment_command_type;
+# define MACHO_MAGIC_NUMBER MH_MAGIC_64
+# define CMD_SEGMENT LC_SEGMENT_64
+# define seg_size uint64_t
+#endif
+
+struct NativeSharedLibrary {
+ const platform_mach_header* header;
+ std::string path;
+};
+static std::vector<NativeSharedLibrary>* sSharedLibrariesList = nullptr;
+static mozilla::StaticMutex sSharedLibrariesMutex MOZ_UNANNOTATED;
+
+static void SharedLibraryAddImage(const struct mach_header* mh,
+ intptr_t vmaddr_slide) {
+ // NOTE: Presumably for backwards-compatibility reasons, this function accepts
+ // a mach_header even on 64-bit where it ought to be a mach_header_64. We cast
+ // it to the right type here.
+ auto header = reinterpret_cast<const platform_mach_header*>(mh);
+
+ Dl_info info;
+ if (!dladdr(header, &info)) {
+ return;
+ }
+
+ mozilla::StaticMutexAutoLock lock(sSharedLibrariesMutex);
+ if (!sSharedLibrariesList) {
+ return;
+ }
+
+ NativeSharedLibrary lib = {header, info.dli_fname};
+ sSharedLibrariesList->push_back(lib);
+}
+
+static void SharedLibraryRemoveImage(const struct mach_header* mh,
+ intptr_t vmaddr_slide) {
+ // NOTE: Presumably for backwards-compatibility reasons, this function accepts
+ // a mach_header even on 64-bit where it ought to be a mach_header_64. We cast
+ // it to the right type here.
+ auto header = reinterpret_cast<const platform_mach_header*>(mh);
+
+ mozilla::StaticMutexAutoLock lock(sSharedLibrariesMutex);
+ if (!sSharedLibrariesList) {
+ return;
+ }
+
+ uint32_t count = sSharedLibrariesList->size();
+ for (uint32_t i = 0; i < count; ++i) {
+ if ((*sSharedLibrariesList)[i].header == header) {
+ sSharedLibrariesList->erase(sSharedLibrariesList->begin() + i);
+ return;
+ }
+ }
+}
+
+void SharedLibraryInfo::Initialize() {
+ // NOTE: We intentionally leak this memory here. We're allocating dynamically
+ // in order to avoid static initializers.
+ sSharedLibrariesList = new std::vector<NativeSharedLibrary>();
+
+ _dyld_register_func_for_add_image(SharedLibraryAddImage);
+ _dyld_register_func_for_remove_image(SharedLibraryRemoveImage);
+}
+
+static void addSharedLibrary(const platform_mach_header* header,
+ const char* path, SharedLibraryInfo& info) {
+ const struct load_command* cmd =
+ reinterpret_cast<const struct load_command*>(header + 1);
+
+ seg_size size = 0;
+ unsigned long long start = reinterpret_cast<unsigned long long>(header);
+ // Find the cmd segment in the macho image. It will contain the offset we care
+ // about.
+ const uint8_t* uuid_bytes = nullptr;
+ for (unsigned int i = 0;
+ cmd && (i < header->ncmds) && (uuid_bytes == nullptr || size == 0);
+ ++i) {
+ if (cmd->cmd == CMD_SEGMENT) {
+ const mach_segment_command_type* seg =
+ reinterpret_cast<const mach_segment_command_type*>(cmd);
+
+ if (!strcmp(seg->segname, "__TEXT")) {
+ size = seg->vmsize;
+ }
+ } else if (cmd->cmd == LC_UUID) {
+ const uuid_command* ucmd = reinterpret_cast<const uuid_command*>(cmd);
+ uuid_bytes = ucmd->uuid;
+ }
+
+ cmd = reinterpret_cast<const struct load_command*>(
+ reinterpret_cast<const char*>(cmd) + cmd->cmdsize);
+ }
+
+ nsAutoCString uuid;
+ nsAutoCString breakpadId;
+ if (uuid_bytes != nullptr) {
+ uuid.AppendPrintf(
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X"
+ "%02X",
+ uuid_bytes[0], uuid_bytes[1], uuid_bytes[2], uuid_bytes[3],
+ uuid_bytes[4], uuid_bytes[5], uuid_bytes[6], uuid_bytes[7],
+ uuid_bytes[8], uuid_bytes[9], uuid_bytes[10], uuid_bytes[11],
+ uuid_bytes[12], uuid_bytes[13], uuid_bytes[14], uuid_bytes[15]);
+
+ // Breakpad id is the same as the uuid but with the additional trailing 0
+ // for the breakpad id age.
+ breakpadId.AppendPrintf(
+ "%s"
+ "0" /* breakpad id age */,
+ uuid.get());
+ }
+
+ nsAutoString pathStr;
+ mozilla::Unused << NS_WARN_IF(
+ NS_FAILED(NS_CopyNativeToUnicode(nsDependentCString(path), pathStr)));
+
+ nsAutoString nameStr = pathStr;
+ int32_t pos = nameStr.RFindChar('/');
+ if (pos != kNotFound) {
+ nameStr.Cut(0, pos + 1);
+ }
+
+ const NXArchInfo* archInfo =
+ NXGetArchInfoFromCpuType(header->cputype, header->cpusubtype);
+
+ info.AddSharedLibrary(SharedLibrary(start, start + size, 0, breakpadId, uuid,
+ nameStr, pathStr, nameStr, pathStr, ""_ns,
+ archInfo ? archInfo->name : ""));
+}
+
+// Translate the statically stored sSharedLibrariesList information into a
+// SharedLibraryInfo object.
+SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf() {
+ mozilla::StaticMutexAutoLock lock(sSharedLibrariesMutex);
+ SharedLibraryInfo sharedLibraryInfo;
+
+ for (auto& info : *sSharedLibrariesList) {
+ addSharedLibrary(info.header, info.path.c_str(), sharedLibraryInfo);
+ }
+
+ // Add the entry for dyld itself.
+ // We only support macOS 10.12+, which corresponds to dyld version 15+.
+ // dyld version 15 added the dyldPath property.
+ task_dyld_info_data_t task_dyld_info;
+ mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT;
+ if (task_info(mach_task_self(), TASK_DYLD_INFO, (task_info_t)&task_dyld_info,
+ &count) != KERN_SUCCESS) {
+ return sharedLibraryInfo;
+ }
+
+ struct dyld_all_image_infos* aii =
+ (struct dyld_all_image_infos*)task_dyld_info.all_image_info_addr;
+ if (aii->version >= 15) {
+ const platform_mach_header* header =
+ reinterpret_cast<const platform_mach_header*>(
+ aii->dyldImageLoadAddress);
+ addSharedLibrary(header, aii->dyldPath, sharedLibraryInfo);
+ }
+
+ return sharedLibraryInfo;
+}
diff --git a/tools/profiler/core/shared-libraries-win32.cc b/tools/profiler/core/shared-libraries-win32.cc
new file mode 100644
index 0000000000..cb0bcd1f41
--- /dev/null
+++ b/tools/profiler/core/shared-libraries-win32.cc
@@ -0,0 +1,167 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <windows.h>
+
+#include "shared-libraries.h"
+#include "nsWindowsHelpers.h"
+#include "mozilla/NativeNt.h"
+#include "mozilla/WindowsEnumProcessModules.h"
+#include "mozilla/WindowsProcessMitigations.h"
+#include "mozilla/WindowsVersion.h"
+#include "nsPrintfCString.h"
+
+static bool IsModuleUnsafeToLoad(const nsAString& aModuleName) {
+#if defined(_M_AMD64) || defined(_M_IX86)
+ // Hackaround for Bug 1607574. Nvidia's shim driver nvd3d9wrap[x].dll detours
+ // LoadLibraryExW and it causes AV when the following conditions are met.
+ // 1. LoadLibraryExW was called for "detoured.dll"
+ // 2. nvinit[x].dll was unloaded
+ // 3. OS version is older than 6.2
+# if defined(_M_AMD64)
+ LPCWSTR kNvidiaShimDriver = L"nvd3d9wrapx.dll";
+ LPCWSTR kNvidiaInitDriver = L"nvinitx.dll";
+# elif defined(_M_IX86)
+ LPCWSTR kNvidiaShimDriver = L"nvd3d9wrap.dll";
+ LPCWSTR kNvidiaInitDriver = L"nvinit.dll";
+# endif
+ if (aModuleName.LowerCaseEqualsLiteral("detoured.dll") &&
+ !mozilla::IsWin8OrLater() && ::GetModuleHandleW(kNvidiaShimDriver) &&
+ !::GetModuleHandleW(kNvidiaInitDriver)) {
+ return true;
+ }
+#endif // defined(_M_AMD64) || defined(_M_IX86)
+
+ // Hackaround for Bug 1723868. There is no safe way to prevent the module
+ // Microsoft's VP9 Video Decoder from being unloaded because mfplat.dll may
+ // have posted more than one task to unload the module in the work queue
+ // without calling LoadLibrary.
+ if (aModuleName.LowerCaseEqualsLiteral("msvp9dec_store.dll")) {
+ return true;
+ }
+
+ return false;
+}
+
+void AddSharedLibraryFromModuleInfo(SharedLibraryInfo& sharedLibraryInfo,
+ const wchar_t* aModulePath,
+ mozilla::Maybe<HMODULE> aModule) {
+ nsDependentSubstring moduleNameStr(
+ mozilla::nt::GetLeafName(nsDependentString(aModulePath)));
+
+ // If the module is unsafe to call LoadLibraryEx for, we skip.
+ if (IsModuleUnsafeToLoad(moduleNameStr)) {
+ return;
+ }
+
+ // If EAF+ is enabled, parsing ntdll's PE header causes a crash.
+ if (mozilla::IsEafPlusEnabled() &&
+ moduleNameStr.LowerCaseEqualsLiteral("ntdll.dll")) {
+ return;
+ }
+
+ // Load the module again - to make sure that its handle will remain valid as
+ // we attempt to read the PDB information from it - or for the first time if
+ // we only have a path. We want to load the DLL without running the newly
+ // loaded module's DllMain function, but not as a data file because we want
+ // to be able to do RVA computations easily. Hence, we use the flag
+ // LOAD_LIBRARY_AS_IMAGE_RESOURCE which ensures that the sections (not PE
+ // headers) will be relocated by the loader. Otherwise GetPdbInfo() and/or
+ // GetVersionInfo() can cause a crash. If the original handle |aModule| is
+ // valid, LoadLibraryEx just increments its refcount.
+ nsModuleHandle handleLock(
+ ::LoadLibraryExW(aModulePath, NULL, LOAD_LIBRARY_AS_IMAGE_RESOURCE));
+ if (!handleLock) {
+ return;
+ }
+
+ mozilla::nt::PEHeaders headers(handleLock.get());
+ if (!headers) {
+ return;
+ }
+
+ mozilla::Maybe<mozilla::Range<const uint8_t>> bounds = headers.GetBounds();
+ if (!bounds) {
+ return;
+ }
+
+ // Put the original |aModule| into SharedLibrary, but we get debug info
+ // from |handleLock| as |aModule| might be inaccessible.
+ const uintptr_t modStart =
+ aModule.isSome() ? reinterpret_cast<uintptr_t>(*aModule)
+ : reinterpret_cast<uintptr_t>(handleLock.get());
+ const uintptr_t modEnd = modStart + bounds->length();
+
+ nsAutoCString breakpadId;
+ nsAutoString pdbPathStr;
+ if (const auto* debugInfo = headers.GetPdbInfo()) {
+ MOZ_ASSERT(breakpadId.IsEmpty());
+ const GUID& pdbSig = debugInfo->pdbSignature;
+ breakpadId.AppendPrintf(
+ "%08lX" // m0
+ "%04X%04X" // m1,m2
+ "%02X%02X%02X%02X%02X%02X%02X%02X" // m3
+ "%X", // pdbAge
+ pdbSig.Data1, pdbSig.Data2, pdbSig.Data3, pdbSig.Data4[0],
+ pdbSig.Data4[1], pdbSig.Data4[2], pdbSig.Data4[3], pdbSig.Data4[4],
+ pdbSig.Data4[5], pdbSig.Data4[6], pdbSig.Data4[7], debugInfo->pdbAge);
+
+ // The PDB file name could be different from module filename,
+ // so report both
+ // e.g. The PDB for C:\Windows\SysWOW64\ntdll.dll is wntdll.pdb
+ pdbPathStr = NS_ConvertUTF8toUTF16(debugInfo->pdbFileName);
+ }
+
+ nsAutoCString codeId;
+ DWORD timestamp;
+ DWORD imageSize;
+ if (headers.GetTimeStamp(timestamp) && headers.GetImageSize(imageSize)) {
+ codeId.AppendPrintf(
+ "%08lX" // Uppercase 8 digits of hex timestamp with leading zeroes.
+ "%lx", // Lowercase hex image size
+ timestamp, imageSize);
+ }
+
+ nsAutoCString versionStr;
+ uint64_t version;
+ if (headers.GetVersionInfo(version)) {
+ versionStr.AppendPrintf("%u.%u.%u.%u",
+ static_cast<uint32_t>((version >> 48) & 0xFFFFu),
+ static_cast<uint32_t>((version >> 32) & 0xFFFFu),
+ static_cast<uint32_t>((version >> 16) & 0xFFFFu),
+ static_cast<uint32_t>(version & 0xFFFFu));
+ }
+
+ const nsString& pdbNameStr =
+ PromiseFlatString(mozilla::nt::GetLeafName(pdbPathStr));
+ SharedLibrary shlib(modStart, modEnd,
+ 0, // DLLs are always mapped at offset 0 on Windows
+ breakpadId, codeId, PromiseFlatString(moduleNameStr),
+ nsDependentString(aModulePath), pdbNameStr, pdbPathStr,
+ versionStr, "");
+ sharedLibraryInfo.AddSharedLibrary(shlib);
+}
+
+SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf() {
+ SharedLibraryInfo sharedLibraryInfo;
+
+ auto addSharedLibraryFromModuleInfo =
+ [&sharedLibraryInfo](const wchar_t* aModulePath, HMODULE aModule) {
+ AddSharedLibraryFromModuleInfo(sharedLibraryInfo, aModulePath,
+ mozilla::Some(aModule));
+ };
+
+ mozilla::EnumerateProcessModules(addSharedLibraryFromModuleInfo);
+ return sharedLibraryInfo;
+}
+
+SharedLibraryInfo SharedLibraryInfo::GetInfoFromPath(const wchar_t* aPath) {
+ SharedLibraryInfo sharedLibraryInfo;
+ AddSharedLibraryFromModuleInfo(sharedLibraryInfo, aPath, mozilla::Nothing());
+ return sharedLibraryInfo;
+}
+
+void SharedLibraryInfo::Initialize() { /* do nothing */
+}
diff --git a/tools/profiler/core/vtune/ittnotify.h b/tools/profiler/core/vtune/ittnotify.h
new file mode 100644
index 0000000000..f1d65b3328
--- /dev/null
+++ b/tools/profiler/core/vtune/ittnotify.h
@@ -0,0 +1,4123 @@
+/* <copyright>
+ This file is provided under a dual BSD/GPLv2 license. When using or
+ redistributing this file, you may do so under either license.
+
+ GPL LICENSE SUMMARY
+
+ Copyright (c) 2005-2014 Intel Corporation. All rights reserved.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of version 2 of the GNU General Public License as
+ published by the Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ The full GNU General Public License is included in this distribution
+ in the file called LICENSE.GPL.
+
+ Contact Information:
+ http://software.intel.com/en-us/articles/intel-vtune-amplifier-xe/
+
+ BSD LICENSE
+
+ Copyright (c) 2005-2014 Intel Corporation. All rights reserved.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+ * Neither the name of Intel Corporation nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+</copyright> */
+#ifndef _ITTNOTIFY_H_
+#define _ITTNOTIFY_H_
+
+/**
+@file
+@brief Public User API functions and types
+@mainpage
+
+The ITT API is used to annotate a user's program with additional information
+that can be used by correctness and performance tools. The user inserts
+calls in their program. Those calls generate information that is collected
+at runtime, and used by Intel(R) Threading Tools.
+
+@section API Concepts
+The following general concepts are used throughout the API.
+
+@subsection Unicode Support
+Many API functions take character string arguments. On Windows, there
+are two versions of each such function. The function name is suffixed
+by W if Unicode support is enabled, and by A otherwise. Any API function
+that takes a character string argument adheres to this convention.
+
+@subsection Conditional Compilation
+Many users prefer having an option to modify ITT API code when linking it
+inside their runtimes. ITT API header file provides a mechanism to replace
+ITT API function names inside your code with empty strings. To do this,
+define the macros INTEL_NO_ITTNOTIFY_API during compilation and remove the
+static library from the linker script.
+
+@subsection Domains
+[see domains]
+Domains provide a way to separate notification for different modules or
+libraries in a program. Domains are specified by dotted character strings,
+e.g. TBB.Internal.Control.
+
+A mechanism (to be specified) is provided to enable and disable
+domains. By default, all domains are enabled.
+@subsection Named Entities and Instances
+Named entities (frames, regions, tasks, and markers) communicate
+information about the program to the analysis tools. A named entity often
+refers to a section of program code, or to some set of logical concepts
+that the programmer wants to group together.
+
+Named entities relate to the programmer's static view of the program. When
+the program actually executes, many instances of a given named entity
+may be created.
+
+The API annotations denote instances of named entities. The actual
+named entities are displayed using the analysis tools. In other words,
+the named entities come into existence when instances are created.
+
+Instances of named entities may have instance identifiers (IDs). Some
+API calls use instance identifiers to create relationships between
+different instances of named entities. Other API calls associate data
+with instances of named entities.
+
+Some named entities must always have instance IDs. In particular, regions
+and frames always have IDs. Task and markers need IDs only if the ID is
+needed in another API call (such as adding a relation or metadata).
+
+The lifetime of instance IDs is distinct from the lifetime of
+instances. This allows various relationships to be specified separate
+from the actual execution of instances. This flexibility comes at the
+expense of extra API calls.
+
+The same ID may not be reused for different instances, unless a previous
+[ref] __itt_id_destroy call for that ID has been issued.
+*/
+
+/** @cond exclude_from_documentation */
+#ifndef ITT_OS_WIN
+# define ITT_OS_WIN 1
+#endif /* ITT_OS_WIN */
+
+#ifndef ITT_OS_LINUX
+# define ITT_OS_LINUX 2
+#endif /* ITT_OS_LINUX */
+
+#ifndef ITT_OS_MAC
+# define ITT_OS_MAC 3
+#endif /* ITT_OS_MAC */
+
+#ifndef ITT_OS_FREEBSD
+# define ITT_OS_FREEBSD 4
+#endif /* ITT_OS_FREEBSD */
+
+#ifndef ITT_OS
+# if defined WIN32 || defined _WIN32
+# define ITT_OS ITT_OS_WIN
+# elif defined( __APPLE__ ) && defined( __MACH__ )
+# define ITT_OS ITT_OS_MAC
+# elif defined( __FreeBSD__ )
+# define ITT_OS ITT_OS_FREEBSD
+# else
+# define ITT_OS ITT_OS_LINUX
+# endif
+#endif /* ITT_OS */
+
+#ifndef ITT_PLATFORM_WIN
+# define ITT_PLATFORM_WIN 1
+#endif /* ITT_PLATFORM_WIN */
+
+#ifndef ITT_PLATFORM_POSIX
+# define ITT_PLATFORM_POSIX 2
+#endif /* ITT_PLATFORM_POSIX */
+
+#ifndef ITT_PLATFORM_MAC
+# define ITT_PLATFORM_MAC 3
+#endif /* ITT_PLATFORM_MAC */
+
+#ifndef ITT_PLATFORM_FREEBSD
+# define ITT_PLATFORM_FREEBSD 4
+#endif /* ITT_PLATFORM_FREEBSD */
+
+#ifndef ITT_PLATFORM
+# if ITT_OS==ITT_OS_WIN
+# define ITT_PLATFORM ITT_PLATFORM_WIN
+# elif ITT_OS==ITT_OS_MAC
+# define ITT_PLATFORM ITT_PLATFORM_MAC
+# elif ITT_OS==ITT_OS_FREEBSD
+# define ITT_PLATFORM ITT_PLATFORM_FREEBSD
+# else
+# define ITT_PLATFORM ITT_PLATFORM_POSIX
+# endif
+#endif /* ITT_PLATFORM */
+
+#if defined(_UNICODE) && !defined(UNICODE)
+#define UNICODE
+#endif
+
+#include <stddef.h>
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#include <tchar.h>
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#include <stdint.h>
+#if defined(UNICODE) || defined(_UNICODE)
+#include <wchar.h>
+#endif /* UNICODE || _UNICODE */
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+#ifndef ITTAPI_CDECL
+# if ITT_PLATFORM==ITT_PLATFORM_WIN
+# define ITTAPI_CDECL __cdecl
+# else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+# if defined _M_IX86 || defined __i386__
+# define ITTAPI_CDECL __attribute__ ((cdecl))
+# else /* _M_IX86 || __i386__ */
+# define ITTAPI_CDECL /* actual only on x86 platform */
+# endif /* _M_IX86 || __i386__ */
+# endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* ITTAPI_CDECL */
+
+#ifndef STDCALL
+# if ITT_PLATFORM==ITT_PLATFORM_WIN
+# define STDCALL __stdcall
+# else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+# if defined _M_IX86 || defined __i386__
+# define STDCALL __attribute__ ((stdcall))
+# else /* _M_IX86 || __i386__ */
+# define STDCALL /* supported only on x86 platform */
+# endif /* _M_IX86 || __i386__ */
+# endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* STDCALL */
+
+#define ITTAPI ITTAPI_CDECL
+#define LIBITTAPI ITTAPI_CDECL
+
+/* TODO: Temporary for compatibility! */
+#define ITTAPI_CALL ITTAPI_CDECL
+#define LIBITTAPI_CALL ITTAPI_CDECL
+
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+/* use __forceinline (VC++ specific) */
+#define ITT_INLINE __forceinline
+#define ITT_INLINE_ATTRIBUTE /* nothing */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+/*
+ * Generally, functions are not inlined unless optimization is specified.
+ * For functions declared inline, this attribute inlines the function even
+ * if no optimization level was specified.
+ */
+#ifdef __STRICT_ANSI__
+#define ITT_INLINE static
+#define ITT_INLINE_ATTRIBUTE __attribute__((unused))
+#else /* __STRICT_ANSI__ */
+#define ITT_INLINE static inline
+#define ITT_INLINE_ATTRIBUTE __attribute__((always_inline, unused))
+#endif /* __STRICT_ANSI__ */
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+/** @endcond */
+
+#ifdef INTEL_ITTNOTIFY_ENABLE_LEGACY
+# if ITT_PLATFORM==ITT_PLATFORM_WIN
+# pragma message("WARNING!!! Deprecated API is used. Please undefine INTEL_ITTNOTIFY_ENABLE_LEGACY macro")
+# else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+# warning "Deprecated API is used. Please undefine INTEL_ITTNOTIFY_ENABLE_LEGACY macro"
+# endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+# include "vtune/legacy/ittnotify.h"
+#endif /* INTEL_ITTNOTIFY_ENABLE_LEGACY */
+
+/** @cond exclude_from_documentation */
+/* Helper macro for joining tokens */
+#define ITT_JOIN_AUX(p,n) p##n
+#define ITT_JOIN(p,n) ITT_JOIN_AUX(p,n)
+
+#ifdef ITT_MAJOR
+#undef ITT_MAJOR
+#endif
+#ifdef ITT_MINOR
+#undef ITT_MINOR
+#endif
+#define ITT_MAJOR 3
+#define ITT_MINOR 0
+
+/* Standard versioning of a token with major and minor version numbers */
+#define ITT_VERSIONIZE(x) \
+ ITT_JOIN(x, \
+ ITT_JOIN(_, \
+ ITT_JOIN(ITT_MAJOR, \
+ ITT_JOIN(_, ITT_MINOR))))
+
+#ifndef INTEL_ITTNOTIFY_PREFIX
+# define INTEL_ITTNOTIFY_PREFIX __itt_
+#endif /* INTEL_ITTNOTIFY_PREFIX */
+#ifndef INTEL_ITTNOTIFY_POSTFIX
+# define INTEL_ITTNOTIFY_POSTFIX _ptr_
+#endif /* INTEL_ITTNOTIFY_POSTFIX */
+
+#define ITTNOTIFY_NAME_AUX(n) ITT_JOIN(INTEL_ITTNOTIFY_PREFIX,n)
+#define ITTNOTIFY_NAME(n) ITT_VERSIONIZE(ITTNOTIFY_NAME_AUX(ITT_JOIN(n,INTEL_ITTNOTIFY_POSTFIX)))
+
+#define ITTNOTIFY_VOID(n) (!ITTNOTIFY_NAME(n)) ? (void)0 : ITTNOTIFY_NAME(n)
+#define ITTNOTIFY_DATA(n) (!ITTNOTIFY_NAME(n)) ? 0 : ITTNOTIFY_NAME(n)
+
+#define ITTNOTIFY_VOID_D0(n,d) (!(d)->flags) ? (void)0 : (!ITTNOTIFY_NAME(n)) ? (void)0 : ITTNOTIFY_NAME(n)(d)
+#define ITTNOTIFY_VOID_D1(n,d,x) (!(d)->flags) ? (void)0 : (!ITTNOTIFY_NAME(n)) ? (void)0 : ITTNOTIFY_NAME(n)(d,x)
+#define ITTNOTIFY_VOID_D2(n,d,x,y) (!(d)->flags) ? (void)0 : (!ITTNOTIFY_NAME(n)) ? (void)0 : ITTNOTIFY_NAME(n)(d,x,y)
+#define ITTNOTIFY_VOID_D3(n,d,x,y,z) (!(d)->flags) ? (void)0 : (!ITTNOTIFY_NAME(n)) ? (void)0 : ITTNOTIFY_NAME(n)(d,x,y,z)
+#define ITTNOTIFY_VOID_D4(n,d,x,y,z,a) (!(d)->flags) ? (void)0 : (!ITTNOTIFY_NAME(n)) ? (void)0 : ITTNOTIFY_NAME(n)(d,x,y,z,a)
+#define ITTNOTIFY_VOID_D5(n,d,x,y,z,a,b) (!(d)->flags) ? (void)0 : (!ITTNOTIFY_NAME(n)) ? (void)0 : ITTNOTIFY_NAME(n)(d,x,y,z,a,b)
+#define ITTNOTIFY_VOID_D6(n,d,x,y,z,a,b,c) (!(d)->flags) ? (void)0 : (!ITTNOTIFY_NAME(n)) ? (void)0 : ITTNOTIFY_NAME(n)(d,x,y,z,a,b,c)
+#define ITTNOTIFY_DATA_D0(n,d) (!(d)->flags) ? 0 : (!ITTNOTIFY_NAME(n)) ? 0 : ITTNOTIFY_NAME(n)(d)
+#define ITTNOTIFY_DATA_D1(n,d,x) (!(d)->flags) ? 0 : (!ITTNOTIFY_NAME(n)) ? 0 : ITTNOTIFY_NAME(n)(d,x)
+#define ITTNOTIFY_DATA_D2(n,d,x,y) (!(d)->flags) ? 0 : (!ITTNOTIFY_NAME(n)) ? 0 : ITTNOTIFY_NAME(n)(d,x,y)
+#define ITTNOTIFY_DATA_D3(n,d,x,y,z) (!(d)->flags) ? 0 : (!ITTNOTIFY_NAME(n)) ? 0 : ITTNOTIFY_NAME(n)(d,x,y,z)
+#define ITTNOTIFY_DATA_D4(n,d,x,y,z,a) (!(d)->flags) ? 0 : (!ITTNOTIFY_NAME(n)) ? 0 : ITTNOTIFY_NAME(n)(d,x,y,z,a)
+#define ITTNOTIFY_DATA_D5(n,d,x,y,z,a,b) (!(d)->flags) ? 0 : (!ITTNOTIFY_NAME(n)) ? 0 : ITTNOTIFY_NAME(n)(d,x,y,z,a,b)
+#define ITTNOTIFY_DATA_D6(n,d,x,y,z,a,b,c) (!(d)->flags) ? 0 : (!ITTNOTIFY_NAME(n)) ? 0 : ITTNOTIFY_NAME(n)(d,x,y,z,a,b,c)
+
+#ifdef ITT_STUB
+#undef ITT_STUB
+#endif
+#ifdef ITT_STUBV
+#undef ITT_STUBV
+#endif
+#define ITT_STUBV(api,type,name,args) \
+ typedef type (api* ITT_JOIN(ITTNOTIFY_NAME(name),_t)) args; \
+ extern ITT_JOIN(ITTNOTIFY_NAME(name),_t) ITTNOTIFY_NAME(name);
+#define ITT_STUB ITT_STUBV
+/** @endcond */
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/** @cond exclude_from_gpa_documentation */
+/**
+ * @defgroup public Public API
+ * @{
+ * @}
+ */
+
+/**
+ * @defgroup control Collection Control
+ * @ingroup public
+ * General behavior: application continues to run, but no profiling information is being collected
+ *
+ * Pausing occurs not only for the current thread but for all process as well as spawned processes
+ * - Intel(R) Parallel Inspector and Intel(R) Inspector XE:
+ * - Does not analyze or report errors that involve memory access.
+ * - Other errors are reported as usual. Pausing data collection in
+ * Intel(R) Parallel Inspector and Intel(R) Inspector XE
+ * only pauses tracing and analyzing memory access.
+ * It does not pause tracing or analyzing threading APIs.
+ * .
+ * - Intel(R) Parallel Amplifier and Intel(R) VTune(TM) Amplifier XE:
+ * - Does continue to record when new threads are started.
+ * .
+ * - Other effects:
+ * - Possible reduction of runtime overhead.
+ * .
+ * @{
+ */
+/** @brief Pause collection */
+void ITTAPI __itt_pause(void);
+/** @brief Resume collection */
+void ITTAPI __itt_resume(void);
+/** @brief Detach collection */
+void ITTAPI __itt_detach(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, pause, (void))
+ITT_STUBV(ITTAPI, void, resume, (void))
+ITT_STUBV(ITTAPI, void, detach, (void))
+#define __itt_pause ITTNOTIFY_VOID(pause)
+#define __itt_pause_ptr ITTNOTIFY_NAME(pause)
+#define __itt_resume ITTNOTIFY_VOID(resume)
+#define __itt_resume_ptr ITTNOTIFY_NAME(resume)
+#define __itt_detach ITTNOTIFY_VOID(detach)
+#define __itt_detach_ptr ITTNOTIFY_NAME(detach)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_pause()
+#define __itt_pause_ptr 0
+#define __itt_resume()
+#define __itt_resume_ptr 0
+#define __itt_detach()
+#define __itt_detach_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_pause_ptr 0
+#define __itt_resume_ptr 0
+#define __itt_detach_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} control group */
+/** @endcond */
+
+/**
+ * @defgroup threads Threads
+ * @ingroup public
+ * Give names to threads
+ * @{
+ */
+/**
+ * @brief Sets thread name of calling thread
+ * @param[in] name - name of thread
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+void ITTAPI __itt_thread_set_nameA(const char *name);
+void ITTAPI __itt_thread_set_nameW(const wchar_t *name);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_thread_set_name __itt_thread_set_nameW
+# define __itt_thread_set_name_ptr __itt_thread_set_nameW_ptr
+#else /* UNICODE */
+# define __itt_thread_set_name __itt_thread_set_nameA
+# define __itt_thread_set_name_ptr __itt_thread_set_nameA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+void ITTAPI __itt_thread_set_name(const char *name);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUBV(ITTAPI, void, thread_set_nameA, (const char *name))
+ITT_STUBV(ITTAPI, void, thread_set_nameW, (const wchar_t *name))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUBV(ITTAPI, void, thread_set_name, (const char *name))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_thread_set_nameA ITTNOTIFY_VOID(thread_set_nameA)
+#define __itt_thread_set_nameA_ptr ITTNOTIFY_NAME(thread_set_nameA)
+#define __itt_thread_set_nameW ITTNOTIFY_VOID(thread_set_nameW)
+#define __itt_thread_set_nameW_ptr ITTNOTIFY_NAME(thread_set_nameW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_thread_set_name ITTNOTIFY_VOID(thread_set_name)
+#define __itt_thread_set_name_ptr ITTNOTIFY_NAME(thread_set_name)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_thread_set_nameA(name)
+#define __itt_thread_set_nameA_ptr 0
+#define __itt_thread_set_nameW(name)
+#define __itt_thread_set_nameW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_thread_set_name(name)
+#define __itt_thread_set_name_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_thread_set_nameA_ptr 0
+#define __itt_thread_set_nameW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_thread_set_name_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @cond exclude_from_gpa_documentation */
+
+/**
+ * @brief Mark current thread as ignored from this point on, for the duration of its existence.
+ */
+void ITTAPI __itt_thread_ignore(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, thread_ignore, (void))
+#define __itt_thread_ignore ITTNOTIFY_VOID(thread_ignore)
+#define __itt_thread_ignore_ptr ITTNOTIFY_NAME(thread_ignore)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_thread_ignore()
+#define __itt_thread_ignore_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_thread_ignore_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} threads group */
+
+/**
+ * @defgroup suppress Error suppression
+ * @ingroup public
+ * General behavior: application continues to run, but errors are suppressed
+ *
+ * @{
+ */
+
+/*****************************************************************//**
+ * @name group of functions used for error suppression in correctness tools
+ *********************************************************************/
+/** @{ */
+/**
+ * @hideinitializer
+ * @brief possible value for suppression mask
+ */
+#define __itt_suppress_all_errors 0x7fffffff
+
+/**
+ * @hideinitializer
+ * @brief possible value for suppression mask (suppresses errors from threading analysis)
+ */
+#define __itt_suppress_threading_errors 0x000000ff
+
+/**
+ * @hideinitializer
+ * @brief possible value for suppression mask (suppresses errors from memory analysis)
+ */
+#define __itt_suppress_memory_errors 0x0000ff00
+
+/**
+ * @brief Start suppressing errors identified in mask on this thread
+ */
+void ITTAPI __itt_suppress_push(unsigned int mask);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, suppress_push, (unsigned int mask))
+#define __itt_suppress_push ITTNOTIFY_VOID(suppress_push)
+#define __itt_suppress_push_ptr ITTNOTIFY_NAME(suppress_push)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_suppress_push(mask)
+#define __itt_suppress_push_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_suppress_push_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Undo the effects of the matching call to __itt_suppress_push
+ */
+void ITTAPI __itt_suppress_pop(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, suppress_pop, (void))
+#define __itt_suppress_pop ITTNOTIFY_VOID(suppress_pop)
+#define __itt_suppress_pop_ptr ITTNOTIFY_NAME(suppress_pop)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_suppress_pop()
+#define __itt_suppress_pop_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_suppress_pop_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @enum __itt_model_disable
+ * @brief Enumerator for the disable methods
+ */
+typedef enum __itt_suppress_mode {
+ __itt_unsuppress_range,
+ __itt_suppress_range
+} __itt_suppress_mode_t;
+
+/**
+ * @brief Mark a range of memory for error suppression or unsuppression for error types included in mask
+ */
+void ITTAPI __itt_suppress_mark_range(__itt_suppress_mode_t mode, unsigned int mask, void * address, size_t size);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, suppress_mark_range, (__itt_suppress_mode_t mode, unsigned int mask, void * address, size_t size))
+#define __itt_suppress_mark_range ITTNOTIFY_VOID(suppress_mark_range)
+#define __itt_suppress_mark_range_ptr ITTNOTIFY_NAME(suppress_mark_range)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_suppress_mark_range(mask)
+#define __itt_suppress_mark_range_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_suppress_mark_range_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Undo the effect of a matching call to __itt_suppress_mark_range. If not matching
+ * call is found, nothing is changed.
+ */
+void ITTAPI __itt_suppress_clear_range(__itt_suppress_mode_t mode, unsigned int mask, void * address, size_t size);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, suppress_clear_range, (__itt_suppress_mode_t mode, unsigned int mask, void * address, size_t size))
+#define __itt_suppress_clear_range ITTNOTIFY_VOID(suppress_clear_range)
+#define __itt_suppress_clear_range_ptr ITTNOTIFY_NAME(suppress_clear_range)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_suppress_clear_range(mask)
+#define __itt_suppress_clear_range_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_suppress_clear_range_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} */
+/** @} suppress group */
+
+/**
+ * @defgroup sync Synchronization
+ * @ingroup public
+ * Indicate user-written synchronization code
+ * @{
+ */
+/**
+ * @hideinitializer
+ * @brief possible value of attribute argument for sync object type
+ */
+#define __itt_attr_barrier 1
+
+/**
+ * @hideinitializer
+ * @brief possible value of attribute argument for sync object type
+ */
+#define __itt_attr_mutex 2
+
+/**
+@brief Name a synchronization object
+@param[in] addr Handle for the synchronization object. You should
+use a real address to uniquely identify the synchronization object.
+@param[in] objtype null-terminated object type string. If NULL is
+passed, the name will be "User Synchronization".
+@param[in] objname null-terminated object name string. If NULL,
+no name will be assigned to the object.
+@param[in] attribute one of [#__itt_attr_barrier, #__itt_attr_mutex]
+ */
+
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+void ITTAPI __itt_sync_createA(void *addr, const char *objtype, const char *objname, int attribute);
+void ITTAPI __itt_sync_createW(void *addr, const wchar_t *objtype, const wchar_t *objname, int attribute);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_sync_create __itt_sync_createW
+# define __itt_sync_create_ptr __itt_sync_createW_ptr
+#else /* UNICODE */
+# define __itt_sync_create __itt_sync_createA
+# define __itt_sync_create_ptr __itt_sync_createA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+void ITTAPI __itt_sync_create (void *addr, const char *objtype, const char *objname, int attribute);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUBV(ITTAPI, void, sync_createA, (void *addr, const char *objtype, const char *objname, int attribute))
+ITT_STUBV(ITTAPI, void, sync_createW, (void *addr, const wchar_t *objtype, const wchar_t *objname, int attribute))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUBV(ITTAPI, void, sync_create, (void *addr, const char* objtype, const char* objname, int attribute))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_sync_createA ITTNOTIFY_VOID(sync_createA)
+#define __itt_sync_createA_ptr ITTNOTIFY_NAME(sync_createA)
+#define __itt_sync_createW ITTNOTIFY_VOID(sync_createW)
+#define __itt_sync_createW_ptr ITTNOTIFY_NAME(sync_createW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_sync_create ITTNOTIFY_VOID(sync_create)
+#define __itt_sync_create_ptr ITTNOTIFY_NAME(sync_create)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_sync_createA(addr, objtype, objname, attribute)
+#define __itt_sync_createA_ptr 0
+#define __itt_sync_createW(addr, objtype, objname, attribute)
+#define __itt_sync_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_sync_create(addr, objtype, objname, attribute)
+#define __itt_sync_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_sync_createA_ptr 0
+#define __itt_sync_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_sync_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+@brief Rename a synchronization object
+
+You can use the rename call to assign or reassign a name to a given
+synchronization object.
+@param[in] addr handle for the synchronization object.
+@param[in] name null-terminated object name string.
+*/
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+void ITTAPI __itt_sync_renameA(void *addr, const char *name);
+void ITTAPI __itt_sync_renameW(void *addr, const wchar_t *name);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_sync_rename __itt_sync_renameW
+# define __itt_sync_rename_ptr __itt_sync_renameW_ptr
+#else /* UNICODE */
+# define __itt_sync_rename __itt_sync_renameA
+# define __itt_sync_rename_ptr __itt_sync_renameA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+void ITTAPI __itt_sync_rename(void *addr, const char *name);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUBV(ITTAPI, void, sync_renameA, (void *addr, const char *name))
+ITT_STUBV(ITTAPI, void, sync_renameW, (void *addr, const wchar_t *name))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUBV(ITTAPI, void, sync_rename, (void *addr, const char *name))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_sync_renameA ITTNOTIFY_VOID(sync_renameA)
+#define __itt_sync_renameA_ptr ITTNOTIFY_NAME(sync_renameA)
+#define __itt_sync_renameW ITTNOTIFY_VOID(sync_renameW)
+#define __itt_sync_renameW_ptr ITTNOTIFY_NAME(sync_renameW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_sync_rename ITTNOTIFY_VOID(sync_rename)
+#define __itt_sync_rename_ptr ITTNOTIFY_NAME(sync_rename)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_sync_renameA(addr, name)
+#define __itt_sync_renameA_ptr 0
+#define __itt_sync_renameW(addr, name)
+#define __itt_sync_renameW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_sync_rename(addr, name)
+#define __itt_sync_rename_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_sync_renameA_ptr 0
+#define __itt_sync_renameW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_sync_rename_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ @brief Destroy a synchronization object.
+ @param addr Handle for the synchronization object.
+ */
+void ITTAPI __itt_sync_destroy(void *addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, sync_destroy, (void *addr))
+#define __itt_sync_destroy ITTNOTIFY_VOID(sync_destroy)
+#define __itt_sync_destroy_ptr ITTNOTIFY_NAME(sync_destroy)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_sync_destroy(addr)
+#define __itt_sync_destroy_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_sync_destroy_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/*****************************************************************//**
+ * @name group of functions is used for performance measurement tools
+ *********************************************************************/
+/** @{ */
+/**
+ * @brief Enter spin loop on user-defined sync object
+ */
+void ITTAPI __itt_sync_prepare(void* addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, sync_prepare, (void *addr))
+#define __itt_sync_prepare ITTNOTIFY_VOID(sync_prepare)
+#define __itt_sync_prepare_ptr ITTNOTIFY_NAME(sync_prepare)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_sync_prepare(addr)
+#define __itt_sync_prepare_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_sync_prepare_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Quit spin loop without acquiring spin object
+ */
+void ITTAPI __itt_sync_cancel(void *addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, sync_cancel, (void *addr))
+#define __itt_sync_cancel ITTNOTIFY_VOID(sync_cancel)
+#define __itt_sync_cancel_ptr ITTNOTIFY_NAME(sync_cancel)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_sync_cancel(addr)
+#define __itt_sync_cancel_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_sync_cancel_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Successful spin loop completion (sync object acquired)
+ */
+void ITTAPI __itt_sync_acquired(void *addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, sync_acquired, (void *addr))
+#define __itt_sync_acquired ITTNOTIFY_VOID(sync_acquired)
+#define __itt_sync_acquired_ptr ITTNOTIFY_NAME(sync_acquired)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_sync_acquired(addr)
+#define __itt_sync_acquired_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_sync_acquired_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Start sync object releasing code. Is called before the lock release call.
+ */
+void ITTAPI __itt_sync_releasing(void* addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, sync_releasing, (void *addr))
+#define __itt_sync_releasing ITTNOTIFY_VOID(sync_releasing)
+#define __itt_sync_releasing_ptr ITTNOTIFY_NAME(sync_releasing)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_sync_releasing(addr)
+#define __itt_sync_releasing_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_sync_releasing_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} */
+
+/** @} sync group */
+
+/**************************************************************//**
+ * @name group of functions is used for correctness checking tools
+ ******************************************************************/
+/** @{ */
+/**
+ * @ingroup legacy
+ * @deprecated Legacy API
+ * @brief Fast synchronization which does no require spinning.
+ * - This special function is to be used by TBB and OpenMP libraries only when they know
+ * there is no spin but they need to suppress TC warnings about shared variable modifications.
+ * - It only has corresponding pointers in static library and does not have corresponding function
+ * in dynamic library.
+ * @see void __itt_sync_prepare(void* addr);
+ */
+void ITTAPI __itt_fsync_prepare(void* addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, fsync_prepare, (void *addr))
+#define __itt_fsync_prepare ITTNOTIFY_VOID(fsync_prepare)
+#define __itt_fsync_prepare_ptr ITTNOTIFY_NAME(fsync_prepare)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_fsync_prepare(addr)
+#define __itt_fsync_prepare_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_fsync_prepare_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup legacy
+ * @deprecated Legacy API
+ * @brief Fast synchronization which does no require spinning.
+ * - This special function is to be used by TBB and OpenMP libraries only when they know
+ * there is no spin but they need to suppress TC warnings about shared variable modifications.
+ * - It only has corresponding pointers in static library and does not have corresponding function
+ * in dynamic library.
+ * @see void __itt_sync_cancel(void *addr);
+ */
+void ITTAPI __itt_fsync_cancel(void *addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, fsync_cancel, (void *addr))
+#define __itt_fsync_cancel ITTNOTIFY_VOID(fsync_cancel)
+#define __itt_fsync_cancel_ptr ITTNOTIFY_NAME(fsync_cancel)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_fsync_cancel(addr)
+#define __itt_fsync_cancel_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_fsync_cancel_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup legacy
+ * @deprecated Legacy API
+ * @brief Fast synchronization which does no require spinning.
+ * - This special function is to be used by TBB and OpenMP libraries only when they know
+ * there is no spin but they need to suppress TC warnings about shared variable modifications.
+ * - It only has corresponding pointers in static library and does not have corresponding function
+ * in dynamic library.
+ * @see void __itt_sync_acquired(void *addr);
+ */
+void ITTAPI __itt_fsync_acquired(void *addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, fsync_acquired, (void *addr))
+#define __itt_fsync_acquired ITTNOTIFY_VOID(fsync_acquired)
+#define __itt_fsync_acquired_ptr ITTNOTIFY_NAME(fsync_acquired)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_fsync_acquired(addr)
+#define __itt_fsync_acquired_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_fsync_acquired_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup legacy
+ * @deprecated Legacy API
+ * @brief Fast synchronization which does no require spinning.
+ * - This special function is to be used by TBB and OpenMP libraries only when they know
+ * there is no spin but they need to suppress TC warnings about shared variable modifications.
+ * - It only has corresponding pointers in static library and does not have corresponding function
+ * in dynamic library.
+ * @see void __itt_sync_releasing(void* addr);
+ */
+void ITTAPI __itt_fsync_releasing(void* addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, fsync_releasing, (void *addr))
+#define __itt_fsync_releasing ITTNOTIFY_VOID(fsync_releasing)
+#define __itt_fsync_releasing_ptr ITTNOTIFY_NAME(fsync_releasing)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_fsync_releasing(addr)
+#define __itt_fsync_releasing_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_fsync_releasing_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} */
+
+/**
+ * @defgroup model Modeling by Intel(R) Parallel Advisor
+ * @ingroup public
+ * This is the subset of itt used for modeling by Intel(R) Parallel Advisor.
+ * This API is called ONLY using annotate.h, by "Annotation" macros
+ * the user places in their sources during the parallelism modeling steps.
+ *
+ * site_begin/end and task_begin/end take the address of handle variables,
+ * which are writeable by the API. Handles must be 0 initialized prior
+ * to the first call to begin, or may cause a run-time failure.
+ * The handles are initialized in a multi-thread safe way by the API if
+ * the handle is 0. The commonly expected idiom is one static handle to
+ * identify a site or task. If a site or task of the same name has already
+ * been started during this collection, the same handle MAY be returned,
+ * but is not required to be - it is unspecified if data merging is done
+ * based on name. These routines also take an instance variable. Like
+ * the lexical instance, these must be 0 initialized. Unlike the lexical
+ * instance, this is used to track a single dynamic instance.
+ *
+ * API used by the Intel(R) Parallel Advisor to describe potential concurrency
+ * and related activities. User-added source annotations expand to calls
+ * to these procedures to enable modeling of a hypothetical concurrent
+ * execution serially.
+ * @{
+ */
+#if !defined(_ADVISOR_ANNOTATE_H_) || defined(ANNOTATE_EXPAND_NULL)
+
+typedef void* __itt_model_site; /*!< @brief handle for lexical site */
+typedef void* __itt_model_site_instance; /*!< @brief handle for dynamic instance */
+typedef void* __itt_model_task; /*!< @brief handle for lexical site */
+typedef void* __itt_model_task_instance; /*!< @brief handle for dynamic instance */
+
+/**
+ * @enum __itt_model_disable
+ * @brief Enumerator for the disable methods
+ */
+typedef enum {
+ __itt_model_disable_observation,
+ __itt_model_disable_collection
+} __itt_model_disable;
+
+#endif /* !_ADVISOR_ANNOTATE_H_ || ANNOTATE_EXPAND_NULL */
+
+/**
+ * @brief ANNOTATE_SITE_BEGIN/ANNOTATE_SITE_END support.
+ *
+ * site_begin/end model a potential concurrency site.
+ * site instances may be recursively nested with themselves.
+ * site_end exits the most recently started but unended site for the current
+ * thread. The handle passed to end may be used to validate structure.
+ * Instances of a site encountered on different threads concurrently
+ * are considered completely distinct. If the site name for two different
+ * lexical sites match, it is unspecified whether they are treated as the
+ * same or different for data presentation.
+ */
+void ITTAPI __itt_model_site_begin(__itt_model_site *site, __itt_model_site_instance *instance, const char *name);
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+void ITTAPI __itt_model_site_beginW(const wchar_t *name);
+#endif
+void ITTAPI __itt_model_site_beginA(const char *name);
+void ITTAPI __itt_model_site_beginAL(const char *name, size_t siteNameLen);
+void ITTAPI __itt_model_site_end (__itt_model_site *site, __itt_model_site_instance *instance);
+void ITTAPI __itt_model_site_end_2(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_site_begin, (__itt_model_site *site, __itt_model_site_instance *instance, const char *name))
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUBV(ITTAPI, void, model_site_beginW, (const wchar_t *name))
+#endif
+ITT_STUBV(ITTAPI, void, model_site_beginA, (const char *name))
+ITT_STUBV(ITTAPI, void, model_site_beginAL, (const char *name, size_t siteNameLen))
+ITT_STUBV(ITTAPI, void, model_site_end, (__itt_model_site *site, __itt_model_site_instance *instance))
+ITT_STUBV(ITTAPI, void, model_site_end_2, (void))
+#define __itt_model_site_begin ITTNOTIFY_VOID(model_site_begin)
+#define __itt_model_site_begin_ptr ITTNOTIFY_NAME(model_site_begin)
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_model_site_beginW ITTNOTIFY_VOID(model_site_beginW)
+#define __itt_model_site_beginW_ptr ITTNOTIFY_NAME(model_site_beginW)
+#endif
+#define __itt_model_site_beginA ITTNOTIFY_VOID(model_site_beginA)
+#define __itt_model_site_beginA_ptr ITTNOTIFY_NAME(model_site_beginA)
+#define __itt_model_site_beginAL ITTNOTIFY_VOID(model_site_beginAL)
+#define __itt_model_site_beginAL_ptr ITTNOTIFY_NAME(model_site_beginAL)
+#define __itt_model_site_end ITTNOTIFY_VOID(model_site_end)
+#define __itt_model_site_end_ptr ITTNOTIFY_NAME(model_site_end)
+#define __itt_model_site_end_2 ITTNOTIFY_VOID(model_site_end_2)
+#define __itt_model_site_end_2_ptr ITTNOTIFY_NAME(model_site_end_2)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_site_begin(site, instance, name)
+#define __itt_model_site_begin_ptr 0
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_model_site_beginW(name)
+#define __itt_model_site_beginW_ptr 0
+#endif
+#define __itt_model_site_beginA(name)
+#define __itt_model_site_beginA_ptr 0
+#define __itt_model_site_beginAL(name, siteNameLen)
+#define __itt_model_site_beginAL_ptr 0
+#define __itt_model_site_end(site, instance)
+#define __itt_model_site_end_ptr 0
+#define __itt_model_site_end_2()
+#define __itt_model_site_end_2_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_site_begin_ptr 0
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_model_site_beginW_ptr 0
+#endif
+#define __itt_model_site_beginA_ptr 0
+#define __itt_model_site_beginAL_ptr 0
+#define __itt_model_site_end_ptr 0
+#define __itt_model_site_end_2_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief ANNOTATE_TASK_BEGIN/ANNOTATE_TASK_END support
+ *
+ * task_begin/end model a potential task, which is contained within the most
+ * closely enclosing dynamic site. task_end exits the most recently started
+ * but unended task. The handle passed to end may be used to validate
+ * structure. It is unspecified if bad dynamic nesting is detected. If it
+ * is, it should be encoded in the resulting data collection. The collector
+ * should not fail due to construct nesting issues, nor attempt to directly
+ * indicate the problem.
+ */
+void ITTAPI __itt_model_task_begin(__itt_model_task *task, __itt_model_task_instance *instance, const char *name);
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+void ITTAPI __itt_model_task_beginW(const wchar_t *name);
+void ITTAPI __itt_model_iteration_taskW(const wchar_t *name);
+#endif
+void ITTAPI __itt_model_task_beginA(const char *name);
+void ITTAPI __itt_model_task_beginAL(const char *name, size_t taskNameLen);
+void ITTAPI __itt_model_iteration_taskA(const char *name);
+void ITTAPI __itt_model_iteration_taskAL(const char *name, size_t taskNameLen);
+void ITTAPI __itt_model_task_end (__itt_model_task *task, __itt_model_task_instance *instance);
+void ITTAPI __itt_model_task_end_2(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_task_begin, (__itt_model_task *task, __itt_model_task_instance *instance, const char *name))
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUBV(ITTAPI, void, model_task_beginW, (const wchar_t *name))
+ITT_STUBV(ITTAPI, void, model_iteration_taskW, (const wchar_t *name))
+#endif
+ITT_STUBV(ITTAPI, void, model_task_beginA, (const char *name))
+ITT_STUBV(ITTAPI, void, model_task_beginAL, (const char *name, size_t taskNameLen))
+ITT_STUBV(ITTAPI, void, model_iteration_taskA, (const char *name))
+ITT_STUBV(ITTAPI, void, model_iteration_taskAL, (const char *name, size_t taskNameLen))
+ITT_STUBV(ITTAPI, void, model_task_end, (__itt_model_task *task, __itt_model_task_instance *instance))
+ITT_STUBV(ITTAPI, void, model_task_end_2, (void))
+#define __itt_model_task_begin ITTNOTIFY_VOID(model_task_begin)
+#define __itt_model_task_begin_ptr ITTNOTIFY_NAME(model_task_begin)
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_model_task_beginW ITTNOTIFY_VOID(model_task_beginW)
+#define __itt_model_task_beginW_ptr ITTNOTIFY_NAME(model_task_beginW)
+#define __itt_model_iteration_taskW ITTNOTIFY_VOID(model_iteration_taskW)
+#define __itt_model_iteration_taskW_ptr ITTNOTIFY_NAME(model_iteration_taskW)
+#endif
+#define __itt_model_task_beginA ITTNOTIFY_VOID(model_task_beginA)
+#define __itt_model_task_beginA_ptr ITTNOTIFY_NAME(model_task_beginA)
+#define __itt_model_task_beginAL ITTNOTIFY_VOID(model_task_beginAL)
+#define __itt_model_task_beginAL_ptr ITTNOTIFY_NAME(model_task_beginAL)
+#define __itt_model_iteration_taskA ITTNOTIFY_VOID(model_iteration_taskA)
+#define __itt_model_iteration_taskA_ptr ITTNOTIFY_NAME(model_iteration_taskA)
+#define __itt_model_iteration_taskAL ITTNOTIFY_VOID(model_iteration_taskAL)
+#define __itt_model_iteration_taskAL_ptr ITTNOTIFY_NAME(model_iteration_taskAL)
+#define __itt_model_task_end ITTNOTIFY_VOID(model_task_end)
+#define __itt_model_task_end_ptr ITTNOTIFY_NAME(model_task_end)
+#define __itt_model_task_end_2 ITTNOTIFY_VOID(model_task_end_2)
+#define __itt_model_task_end_2_ptr ITTNOTIFY_NAME(model_task_end_2)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_task_begin(task, instance, name)
+#define __itt_model_task_begin_ptr 0
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_model_task_beginW(name)
+#define __itt_model_task_beginW_ptr 0
+#endif
+#define __itt_model_task_beginA(name)
+#define __itt_model_task_beginA_ptr 0
+#define __itt_model_task_beginAL(name, siteNameLen)
+#define __itt_model_task_beginAL_ptr 0
+#define __itt_model_iteration_taskA(name)
+#define __itt_model_iteration_taskA_ptr 0
+#define __itt_model_iteration_taskAL(name, siteNameLen)
+#define __itt_model_iteration_taskAL_ptr 0
+#define __itt_model_task_end(task, instance)
+#define __itt_model_task_end_ptr 0
+#define __itt_model_task_end_2()
+#define __itt_model_task_end_2_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_task_begin_ptr 0
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_model_task_beginW_ptr 0
+#endif
+#define __itt_model_task_beginA_ptr 0
+#define __itt_model_task_beginAL_ptr 0
+#define __itt_model_iteration_taskA_ptr 0
+#define __itt_model_iteration_taskAL_ptr 0
+#define __itt_model_task_end_ptr 0
+#define __itt_model_task_end_2_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief ANNOTATE_LOCK_ACQUIRE/ANNOTATE_LOCK_RELEASE support
+ *
+ * lock_acquire/release model a potential lock for both lockset and
+ * performance modeling. Each unique address is modeled as a separate
+ * lock, with invalid addresses being valid lock IDs. Specifically:
+ * no storage is accessed by the API at the specified address - it is only
+ * used for lock identification. Lock acquires may be self-nested and are
+ * unlocked by a corresponding number of releases.
+ * (These closely correspond to __itt_sync_acquired/__itt_sync_releasing,
+ * but may not have identical semantics.)
+ */
+void ITTAPI __itt_model_lock_acquire(void *lock);
+void ITTAPI __itt_model_lock_acquire_2(void *lock);
+void ITTAPI __itt_model_lock_release(void *lock);
+void ITTAPI __itt_model_lock_release_2(void *lock);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_lock_acquire, (void *lock))
+ITT_STUBV(ITTAPI, void, model_lock_acquire_2, (void *lock))
+ITT_STUBV(ITTAPI, void, model_lock_release, (void *lock))
+ITT_STUBV(ITTAPI, void, model_lock_release_2, (void *lock))
+#define __itt_model_lock_acquire ITTNOTIFY_VOID(model_lock_acquire)
+#define __itt_model_lock_acquire_ptr ITTNOTIFY_NAME(model_lock_acquire)
+#define __itt_model_lock_acquire_2 ITTNOTIFY_VOID(model_lock_acquire_2)
+#define __itt_model_lock_acquire_2_ptr ITTNOTIFY_NAME(model_lock_acquire_2)
+#define __itt_model_lock_release ITTNOTIFY_VOID(model_lock_release)
+#define __itt_model_lock_release_ptr ITTNOTIFY_NAME(model_lock_release)
+#define __itt_model_lock_release_2 ITTNOTIFY_VOID(model_lock_release_2)
+#define __itt_model_lock_release_2_ptr ITTNOTIFY_NAME(model_lock_release_2)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_lock_acquire(lock)
+#define __itt_model_lock_acquire_ptr 0
+#define __itt_model_lock_acquire_2(lock)
+#define __itt_model_lock_acquire_2_ptr 0
+#define __itt_model_lock_release(lock)
+#define __itt_model_lock_release_ptr 0
+#define __itt_model_lock_release_2(lock)
+#define __itt_model_lock_release_2_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_lock_acquire_ptr 0
+#define __itt_model_lock_acquire_2_ptr 0
+#define __itt_model_lock_release_ptr 0
+#define __itt_model_lock_release_2_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief ANNOTATE_RECORD_ALLOCATION/ANNOTATE_RECORD_DEALLOCATION support
+ *
+ * record_allocation/deallocation describe user-defined memory allocator
+ * behavior, which may be required for correctness modeling to understand
+ * when storage is not expected to be actually reused across threads.
+ */
+void ITTAPI __itt_model_record_allocation (void *addr, size_t size);
+void ITTAPI __itt_model_record_deallocation(void *addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_record_allocation, (void *addr, size_t size))
+ITT_STUBV(ITTAPI, void, model_record_deallocation, (void *addr))
+#define __itt_model_record_allocation ITTNOTIFY_VOID(model_record_allocation)
+#define __itt_model_record_allocation_ptr ITTNOTIFY_NAME(model_record_allocation)
+#define __itt_model_record_deallocation ITTNOTIFY_VOID(model_record_deallocation)
+#define __itt_model_record_deallocation_ptr ITTNOTIFY_NAME(model_record_deallocation)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_record_allocation(addr, size)
+#define __itt_model_record_allocation_ptr 0
+#define __itt_model_record_deallocation(addr)
+#define __itt_model_record_deallocation_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_record_allocation_ptr 0
+#define __itt_model_record_deallocation_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief ANNOTATE_INDUCTION_USES support
+ *
+ * Note particular storage is inductive through the end of the current site
+ */
+void ITTAPI __itt_model_induction_uses(void* addr, size_t size);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_induction_uses, (void *addr, size_t size))
+#define __itt_model_induction_uses ITTNOTIFY_VOID(model_induction_uses)
+#define __itt_model_induction_uses_ptr ITTNOTIFY_NAME(model_induction_uses)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_induction_uses(addr, size)
+#define __itt_model_induction_uses_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_induction_uses_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief ANNOTATE_REDUCTION_USES support
+ *
+ * Note particular storage is used for reduction through the end
+ * of the current site
+ */
+void ITTAPI __itt_model_reduction_uses(void* addr, size_t size);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_reduction_uses, (void *addr, size_t size))
+#define __itt_model_reduction_uses ITTNOTIFY_VOID(model_reduction_uses)
+#define __itt_model_reduction_uses_ptr ITTNOTIFY_NAME(model_reduction_uses)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_reduction_uses(addr, size)
+#define __itt_model_reduction_uses_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_reduction_uses_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief ANNOTATE_OBSERVE_USES support
+ *
+ * Have correctness modeling record observations about uses of storage
+ * through the end of the current site
+ */
+void ITTAPI __itt_model_observe_uses(void* addr, size_t size);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_observe_uses, (void *addr, size_t size))
+#define __itt_model_observe_uses ITTNOTIFY_VOID(model_observe_uses)
+#define __itt_model_observe_uses_ptr ITTNOTIFY_NAME(model_observe_uses)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_observe_uses(addr, size)
+#define __itt_model_observe_uses_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_observe_uses_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief ANNOTATE_CLEAR_USES support
+ *
+ * Clear the special handling of a piece of storage related to induction,
+ * reduction or observe_uses
+ */
+void ITTAPI __itt_model_clear_uses(void* addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_clear_uses, (void *addr))
+#define __itt_model_clear_uses ITTNOTIFY_VOID(model_clear_uses)
+#define __itt_model_clear_uses_ptr ITTNOTIFY_NAME(model_clear_uses)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_clear_uses(addr)
+#define __itt_model_clear_uses_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_clear_uses_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief ANNOTATE_DISABLE_*_PUSH/ANNOTATE_DISABLE_*_POP support
+ *
+ * disable_push/disable_pop push and pop disabling based on a parameter.
+ * Disabling observations stops processing of memory references during
+ * correctness modeling, and all annotations that occur in the disabled
+ * region. This allows description of code that is expected to be handled
+ * specially during conversion to parallelism or that is not recognized
+ * by tools (e.g. some kinds of synchronization operations.)
+ * This mechanism causes all annotations in the disabled region, other
+ * than disable_push and disable_pop, to be ignored. (For example, this
+ * might validly be used to disable an entire parallel site and the contained
+ * tasks and locking in it for data collection purposes.)
+ * The disable for collection is a more expensive operation, but reduces
+ * collector overhead significantly. This applies to BOTH correctness data
+ * collection and performance data collection. For example, a site
+ * containing a task might only enable data collection for the first 10
+ * iterations. Both performance and correctness data should reflect this,
+ * and the program should run as close to full speed as possible when
+ * collection is disabled.
+ */
+void ITTAPI __itt_model_disable_push(__itt_model_disable x);
+void ITTAPI __itt_model_disable_pop(void);
+void ITTAPI __itt_model_aggregate_task(size_t x);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, model_disable_push, (__itt_model_disable x))
+ITT_STUBV(ITTAPI, void, model_disable_pop, (void))
+ITT_STUBV(ITTAPI, void, model_aggregate_task, (size_t x))
+#define __itt_model_disable_push ITTNOTIFY_VOID(model_disable_push)
+#define __itt_model_disable_push_ptr ITTNOTIFY_NAME(model_disable_push)
+#define __itt_model_disable_pop ITTNOTIFY_VOID(model_disable_pop)
+#define __itt_model_disable_pop_ptr ITTNOTIFY_NAME(model_disable_pop)
+#define __itt_model_aggregate_task ITTNOTIFY_VOID(model_aggregate_task)
+#define __itt_model_aggregate_task_ptr ITTNOTIFY_NAME(model_aggregate_task)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_model_disable_push(x)
+#define __itt_model_disable_push_ptr 0
+#define __itt_model_disable_pop()
+#define __itt_model_disable_pop_ptr 0
+#define __itt_model_aggregate_task(x)
+#define __itt_model_aggregate_task_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_model_disable_push_ptr 0
+#define __itt_model_disable_pop_ptr 0
+#define __itt_model_aggregate_task_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} model group */
+
+/**
+ * @defgroup heap Heap
+ * @ingroup public
+ * Heap group
+ * @{
+ */
+
+typedef void* __itt_heap_function;
+
+/**
+ * @brief Create an identification for heap function
+ * @return non-zero identifier or NULL
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+__itt_heap_function ITTAPI __itt_heap_function_createA(const char* name, const char* domain);
+__itt_heap_function ITTAPI __itt_heap_function_createW(const wchar_t* name, const wchar_t* domain);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_heap_function_create __itt_heap_function_createW
+# define __itt_heap_function_create_ptr __itt_heap_function_createW_ptr
+#else
+# define __itt_heap_function_create __itt_heap_function_createA
+# define __itt_heap_function_create_ptr __itt_heap_function_createA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+__itt_heap_function ITTAPI __itt_heap_function_create(const char* name, const char* domain);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, __itt_heap_function, heap_function_createA, (const char* name, const char* domain))
+ITT_STUB(ITTAPI, __itt_heap_function, heap_function_createW, (const wchar_t* name, const wchar_t* domain))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, __itt_heap_function, heap_function_create, (const char* name, const char* domain))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_heap_function_createA ITTNOTIFY_DATA(heap_function_createA)
+#define __itt_heap_function_createA_ptr ITTNOTIFY_NAME(heap_function_createA)
+#define __itt_heap_function_createW ITTNOTIFY_DATA(heap_function_createW)
+#define __itt_heap_function_createW_ptr ITTNOTIFY_NAME(heap_function_createW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_heap_function_create ITTNOTIFY_DATA(heap_function_create)
+#define __itt_heap_function_create_ptr ITTNOTIFY_NAME(heap_function_create)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_heap_function_createA(name, domain) (__itt_heap_function)0
+#define __itt_heap_function_createA_ptr 0
+#define __itt_heap_function_createW(name, domain) (__itt_heap_function)0
+#define __itt_heap_function_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_heap_function_create(name, domain) (__itt_heap_function)0
+#define __itt_heap_function_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_heap_function_createA_ptr 0
+#define __itt_heap_function_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_heap_function_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Record an allocation begin occurrence.
+ */
+void ITTAPI __itt_heap_allocate_begin(__itt_heap_function h, size_t size, int initialized);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_allocate_begin, (__itt_heap_function h, size_t size, int initialized))
+#define __itt_heap_allocate_begin ITTNOTIFY_VOID(heap_allocate_begin)
+#define __itt_heap_allocate_begin_ptr ITTNOTIFY_NAME(heap_allocate_begin)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_allocate_begin(h, size, initialized)
+#define __itt_heap_allocate_begin_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_allocate_begin_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Record an allocation end occurrence.
+ */
+void ITTAPI __itt_heap_allocate_end(__itt_heap_function h, void** addr, size_t size, int initialized);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_allocate_end, (__itt_heap_function h, void** addr, size_t size, int initialized))
+#define __itt_heap_allocate_end ITTNOTIFY_VOID(heap_allocate_end)
+#define __itt_heap_allocate_end_ptr ITTNOTIFY_NAME(heap_allocate_end)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_allocate_end(h, addr, size, initialized)
+#define __itt_heap_allocate_end_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_allocate_end_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Record an free begin occurrence.
+ */
+void ITTAPI __itt_heap_free_begin(__itt_heap_function h, void* addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_free_begin, (__itt_heap_function h, void* addr))
+#define __itt_heap_free_begin ITTNOTIFY_VOID(heap_free_begin)
+#define __itt_heap_free_begin_ptr ITTNOTIFY_NAME(heap_free_begin)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_free_begin(h, addr)
+#define __itt_heap_free_begin_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_free_begin_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Record an free end occurrence.
+ */
+void ITTAPI __itt_heap_free_end(__itt_heap_function h, void* addr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_free_end, (__itt_heap_function h, void* addr))
+#define __itt_heap_free_end ITTNOTIFY_VOID(heap_free_end)
+#define __itt_heap_free_end_ptr ITTNOTIFY_NAME(heap_free_end)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_free_end(h, addr)
+#define __itt_heap_free_end_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_free_end_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Record an reallocation begin occurrence.
+ */
+void ITTAPI __itt_heap_reallocate_begin(__itt_heap_function h, void* addr, size_t new_size, int initialized);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_reallocate_begin, (__itt_heap_function h, void* addr, size_t new_size, int initialized))
+#define __itt_heap_reallocate_begin ITTNOTIFY_VOID(heap_reallocate_begin)
+#define __itt_heap_reallocate_begin_ptr ITTNOTIFY_NAME(heap_reallocate_begin)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_reallocate_begin(h, addr, new_size, initialized)
+#define __itt_heap_reallocate_begin_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_reallocate_begin_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Record an reallocation end occurrence.
+ */
+void ITTAPI __itt_heap_reallocate_end(__itt_heap_function h, void* addr, void** new_addr, size_t new_size, int initialized);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_reallocate_end, (__itt_heap_function h, void* addr, void** new_addr, size_t new_size, int initialized))
+#define __itt_heap_reallocate_end ITTNOTIFY_VOID(heap_reallocate_end)
+#define __itt_heap_reallocate_end_ptr ITTNOTIFY_NAME(heap_reallocate_end)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_reallocate_end(h, addr, new_addr, new_size, initialized)
+#define __itt_heap_reallocate_end_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_reallocate_end_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @brief internal access begin */
+void ITTAPI __itt_heap_internal_access_begin(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_internal_access_begin, (void))
+#define __itt_heap_internal_access_begin ITTNOTIFY_VOID(heap_internal_access_begin)
+#define __itt_heap_internal_access_begin_ptr ITTNOTIFY_NAME(heap_internal_access_begin)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_internal_access_begin()
+#define __itt_heap_internal_access_begin_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_internal_access_begin_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @brief internal access end */
+void ITTAPI __itt_heap_internal_access_end(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_internal_access_end, (void))
+#define __itt_heap_internal_access_end ITTNOTIFY_VOID(heap_internal_access_end)
+#define __itt_heap_internal_access_end_ptr ITTNOTIFY_NAME(heap_internal_access_end)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_internal_access_end()
+#define __itt_heap_internal_access_end_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_internal_access_end_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @brief record memory growth begin */
+void ITTAPI __itt_heap_record_memory_growth_begin(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_record_memory_growth_begin, (void))
+#define __itt_heap_record_memory_growth_begin ITTNOTIFY_VOID(heap_record_memory_growth_begin)
+#define __itt_heap_record_memory_growth_begin_ptr ITTNOTIFY_NAME(heap_record_memory_growth_begin)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_record_memory_growth_begin()
+#define __itt_heap_record_memory_growth_begin_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_record_memory_growth_begin_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @brief record memory growth end */
+void ITTAPI __itt_heap_record_memory_growth_end(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_record_memory_growth_end, (void))
+#define __itt_heap_record_memory_growth_end ITTNOTIFY_VOID(heap_record_memory_growth_end)
+#define __itt_heap_record_memory_growth_end_ptr ITTNOTIFY_NAME(heap_record_memory_growth_end)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_record_memory_growth_end()
+#define __itt_heap_record_memory_growth_end_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_record_memory_growth_end_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Specify the type of heap detection/reporting to modify.
+ */
+/**
+ * @hideinitializer
+ * @brief Report on memory leaks.
+ */
+#define __itt_heap_leaks 0x00000001
+
+/**
+ * @hideinitializer
+ * @brief Report on memory growth.
+ */
+#define __itt_heap_growth 0x00000002
+
+
+/** @brief heap reset detection */
+void ITTAPI __itt_heap_reset_detection(unsigned int reset_mask);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_reset_detection, (unsigned int reset_mask))
+#define __itt_heap_reset_detection ITTNOTIFY_VOID(heap_reset_detection)
+#define __itt_heap_reset_detection_ptr ITTNOTIFY_NAME(heap_reset_detection)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_reset_detection()
+#define __itt_heap_reset_detection_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_reset_detection_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @brief report */
+void ITTAPI __itt_heap_record(unsigned int record_mask);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, heap_record, (unsigned int record_mask))
+#define __itt_heap_record ITTNOTIFY_VOID(heap_record)
+#define __itt_heap_record_ptr ITTNOTIFY_NAME(heap_record)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_heap_record()
+#define __itt_heap_record_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_heap_record_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @} heap group */
+/** @endcond */
+/* ========================================================================== */
+
+/**
+ * @defgroup domains Domains
+ * @ingroup public
+ * Domains group
+ * @{
+ */
+
+/** @cond exclude_from_documentation */
+#pragma pack(push, 8)
+
+typedef struct ___itt_domain
+{
+ volatile int flags; /*!< Zero if disabled, non-zero if enabled. The meaning of different non-zero values is reserved to the runtime */
+ const char* nameA; /*!< Copy of original name in ASCII. */
+#if defined(UNICODE) || defined(_UNICODE)
+ const wchar_t* nameW; /*!< Copy of original name in UNICODE. */
+#else /* UNICODE || _UNICODE */
+ void* nameW;
+#endif /* UNICODE || _UNICODE */
+ int extra1; /*!< Reserved to the runtime */
+ void* extra2; /*!< Reserved to the runtime */
+ struct ___itt_domain* next;
+} __itt_domain;
+
+#pragma pack(pop)
+/** @endcond */
+
+/**
+ * @ingroup domains
+ * @brief Create a domain.
+ * Create domain using some domain name: the URI naming style is recommended.
+ * Because the set of domains is expected to be static over the application's
+ * execution time, there is no mechanism to destroy a domain.
+ * Any domain can be accessed by any thread in the process, regardless of
+ * which thread created the domain. This call is thread-safe.
+ * @param[in] name name of domain
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+__itt_domain* ITTAPI __itt_domain_createA(const char *name);
+__itt_domain* ITTAPI __itt_domain_createW(const wchar_t *name);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_domain_create __itt_domain_createW
+# define __itt_domain_create_ptr __itt_domain_createW_ptr
+#else /* UNICODE */
+# define __itt_domain_create __itt_domain_createA
+# define __itt_domain_create_ptr __itt_domain_createA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+__itt_domain* ITTAPI __itt_domain_create(const char *name);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, __itt_domain*, domain_createA, (const char *name))
+ITT_STUB(ITTAPI, __itt_domain*, domain_createW, (const wchar_t *name))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, __itt_domain*, domain_create, (const char *name))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_domain_createA ITTNOTIFY_DATA(domain_createA)
+#define __itt_domain_createA_ptr ITTNOTIFY_NAME(domain_createA)
+#define __itt_domain_createW ITTNOTIFY_DATA(domain_createW)
+#define __itt_domain_createW_ptr ITTNOTIFY_NAME(domain_createW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_domain_create ITTNOTIFY_DATA(domain_create)
+#define __itt_domain_create_ptr ITTNOTIFY_NAME(domain_create)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_domain_createA(name) (__itt_domain*)0
+#define __itt_domain_createA_ptr 0
+#define __itt_domain_createW(name) (__itt_domain*)0
+#define __itt_domain_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_domain_create(name) (__itt_domain*)0
+#define __itt_domain_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_domain_createA_ptr 0
+#define __itt_domain_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_domain_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} domains group */
+
+/**
+ * @defgroup ids IDs
+ * @ingroup public
+ * IDs group
+ * @{
+ */
+
+/** @cond exclude_from_documentation */
+#pragma pack(push, 8)
+
+typedef struct ___itt_id
+{
+ unsigned long long d1, d2, d3;
+} __itt_id;
+
+#pragma pack(pop)
+/** @endcond */
+
+const __itt_id __itt_null = { 0, 0, 0 };
+
+/**
+ * @ingroup ids
+ * @brief A convenience function is provided to create an ID without domain control.
+ * @brief This is a convenience function to initialize an __itt_id structure. This function
+ * does not affect the collector runtime in any way. After you make the ID with this
+ * function, you still must create it with the __itt_id_create function before using the ID
+ * to identify a named entity.
+ * @param[in] addr The address of object; high QWORD of the ID value.
+ * @param[in] extra The extra data to unique identify object; low QWORD of the ID value.
+ */
+
+ITT_INLINE __itt_id ITTAPI __itt_id_make(void* addr, unsigned long long extra) ITT_INLINE_ATTRIBUTE;
+ITT_INLINE __itt_id ITTAPI __itt_id_make(void* addr, unsigned long long extra)
+{
+ __itt_id id = __itt_null;
+ id.d1 = (unsigned long long)((uintptr_t)addr);
+ id.d2 = (unsigned long long)extra;
+ id.d3 = (unsigned long long)0; /* Reserved. Must be zero */
+ return id;
+}
+
+/**
+ * @ingroup ids
+ * @brief Create an instance of identifier.
+ * This establishes the beginning of the lifetime of an instance of
+ * the given ID in the trace. Once this lifetime starts, the ID
+ * can be used to tag named entity instances in calls such as
+ * __itt_task_begin, and to specify relationships among
+ * identified named entity instances, using the \ref relations APIs.
+ * Instance IDs are not domain specific!
+ * @param[in] domain The domain controlling the execution of this call.
+ * @param[in] id The ID to create.
+ */
+void ITTAPI __itt_id_create(const __itt_domain *domain, __itt_id id);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, id_create, (const __itt_domain *domain, __itt_id id))
+#define __itt_id_create(d,x) ITTNOTIFY_VOID_D1(id_create,d,x)
+#define __itt_id_create_ptr ITTNOTIFY_NAME(id_create)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_id_create(domain,id)
+#define __itt_id_create_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_id_create_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup ids
+ * @brief Destroy an instance of identifier.
+ * This ends the lifetime of the current instance of the given ID value in the trace.
+ * Any relationships that are established after this lifetime ends are invalid.
+ * This call must be performed before the given ID value can be reused for a different
+ * named entity instance.
+ * @param[in] domain The domain controlling the execution of this call.
+ * @param[in] id The ID to destroy.
+ */
+void ITTAPI __itt_id_destroy(const __itt_domain *domain, __itt_id id);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, id_destroy, (const __itt_domain *domain, __itt_id id))
+#define __itt_id_destroy(d,x) ITTNOTIFY_VOID_D1(id_destroy,d,x)
+#define __itt_id_destroy_ptr ITTNOTIFY_NAME(id_destroy)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_id_destroy(domain,id)
+#define __itt_id_destroy_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_id_destroy_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} ids group */
+
+/**
+ * @defgroup handless String Handles
+ * @ingroup public
+ * String Handles group
+ * @{
+ */
+
+/** @cond exclude_from_documentation */
+#pragma pack(push, 8)
+
+typedef struct ___itt_string_handle
+{
+ const char* strA; /*!< Copy of original string in ASCII. */
+#if defined(UNICODE) || defined(_UNICODE)
+ const wchar_t* strW; /*!< Copy of original string in UNICODE. */
+#else /* UNICODE || _UNICODE */
+ void* strW;
+#endif /* UNICODE || _UNICODE */
+ int extra1; /*!< Reserved. Must be zero */
+ void* extra2; /*!< Reserved. Must be zero */
+ struct ___itt_string_handle* next;
+} __itt_string_handle;
+
+#pragma pack(pop)
+/** @endcond */
+
+/**
+ * @ingroup handles
+ * @brief Create a string handle.
+ * Create and return handle value that can be associated with a string.
+ * Consecutive calls to __itt_string_handle_create with the same name
+ * return the same value. Because the set of string handles is expected to remain
+ * static during the application's execution time, there is no mechanism to destroy a string handle.
+ * Any string handle can be accessed by any thread in the process, regardless of which thread created
+ * the string handle. This call is thread-safe.
+ * @param[in] name The input string
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+__itt_string_handle* ITTAPI __itt_string_handle_createA(const char *name);
+__itt_string_handle* ITTAPI __itt_string_handle_createW(const wchar_t *name);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_string_handle_create __itt_string_handle_createW
+# define __itt_string_handle_create_ptr __itt_string_handle_createW_ptr
+#else /* UNICODE */
+# define __itt_string_handle_create __itt_string_handle_createA
+# define __itt_string_handle_create_ptr __itt_string_handle_createA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+__itt_string_handle* ITTAPI __itt_string_handle_create(const char *name);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, __itt_string_handle*, string_handle_createA, (const char *name))
+ITT_STUB(ITTAPI, __itt_string_handle*, string_handle_createW, (const wchar_t *name))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, __itt_string_handle*, string_handle_create, (const char *name))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_string_handle_createA ITTNOTIFY_DATA(string_handle_createA)
+#define __itt_string_handle_createA_ptr ITTNOTIFY_NAME(string_handle_createA)
+#define __itt_string_handle_createW ITTNOTIFY_DATA(string_handle_createW)
+#define __itt_string_handle_createW_ptr ITTNOTIFY_NAME(string_handle_createW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_string_handle_create ITTNOTIFY_DATA(string_handle_create)
+#define __itt_string_handle_create_ptr ITTNOTIFY_NAME(string_handle_create)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_string_handle_createA(name) (__itt_string_handle*)0
+#define __itt_string_handle_createA_ptr 0
+#define __itt_string_handle_createW(name) (__itt_string_handle*)0
+#define __itt_string_handle_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_string_handle_create(name) (__itt_string_handle*)0
+#define __itt_string_handle_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_string_handle_createA_ptr 0
+#define __itt_string_handle_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_string_handle_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} handles group */
+
+/** @cond exclude_from_documentation */
+typedef unsigned long long __itt_timestamp;
+/** @endcond */
+
+#define __itt_timestamp_none ((__itt_timestamp)-1LL)
+
+/** @cond exclude_from_gpa_documentation */
+
+/**
+ * @ingroup timestamps
+ * @brief Return timestamp corresponding to the current moment.
+ * This returns the timestamp in the format that is the most relevant for the current
+ * host or platform (RDTSC, QPC, and others). You can use the "<" operator to
+ * compare __itt_timestamp values.
+ */
+__itt_timestamp ITTAPI __itt_get_timestamp(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(ITTAPI, __itt_timestamp, get_timestamp, (void))
+#define __itt_get_timestamp ITTNOTIFY_DATA(get_timestamp)
+#define __itt_get_timestamp_ptr ITTNOTIFY_NAME(get_timestamp)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_get_timestamp()
+#define __itt_get_timestamp_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_get_timestamp_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} timestamps */
+/** @endcond */
+
+/** @cond exclude_from_gpa_documentation */
+
+/**
+ * @defgroup regions Regions
+ * @ingroup public
+ * Regions group
+ * @{
+ */
+/**
+ * @ingroup regions
+ * @brief Begin of region instance.
+ * Successive calls to __itt_region_begin with the same ID are ignored
+ * until a call to __itt_region_end with the same ID
+ * @param[in] domain The domain for this region instance
+ * @param[in] id The instance ID for this region instance. Must not be __itt_null
+ * @param[in] parentid The instance ID for the parent of this region instance, or __itt_null
+ * @param[in] name The name of this region
+ */
+void ITTAPI __itt_region_begin(const __itt_domain *domain, __itt_id id, __itt_id parentid, __itt_string_handle *name);
+
+/**
+ * @ingroup regions
+ * @brief End of region instance.
+ * The first call to __itt_region_end with a given ID ends the
+ * region. Successive calls with the same ID are ignored, as are
+ * calls that do not have a matching __itt_region_begin call.
+ * @param[in] domain The domain for this region instance
+ * @param[in] id The instance ID for this region instance
+ */
+void ITTAPI __itt_region_end(const __itt_domain *domain, __itt_id id);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, region_begin, (const __itt_domain *domain, __itt_id id, __itt_id parentid, __itt_string_handle *name))
+ITT_STUBV(ITTAPI, void, region_end, (const __itt_domain *domain, __itt_id id))
+#define __itt_region_begin(d,x,y,z) ITTNOTIFY_VOID_D3(region_begin,d,x,y,z)
+#define __itt_region_begin_ptr ITTNOTIFY_NAME(region_begin)
+#define __itt_region_end(d,x) ITTNOTIFY_VOID_D1(region_end,d,x)
+#define __itt_region_end_ptr ITTNOTIFY_NAME(region_end)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_region_begin(d,x,y,z)
+#define __itt_region_begin_ptr 0
+#define __itt_region_end(d,x)
+#define __itt_region_end_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_region_begin_ptr 0
+#define __itt_region_end_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} regions group */
+
+/**
+ * @defgroup frames Frames
+ * @ingroup public
+ * Frames are similar to regions, but are intended to be easier to use and to implement.
+ * In particular:
+ * - Frames always represent periods of elapsed time
+ * - By default, frames have no nesting relationships
+ * @{
+ */
+
+/**
+ * @ingroup frames
+ * @brief Begin a frame instance.
+ * Successive calls to __itt_frame_begin with the
+ * same ID are ignored until a call to __itt_frame_end with the same ID.
+ * @param[in] domain The domain for this frame instance
+ * @param[in] id The instance ID for this frame instance or NULL
+ */
+void ITTAPI __itt_frame_begin_v3(const __itt_domain *domain, __itt_id *id);
+
+/**
+ * @ingroup frames
+ * @brief End a frame instance.
+ * The first call to __itt_frame_end with a given ID
+ * ends the frame. Successive calls with the same ID are ignored, as are
+ * calls that do not have a matching __itt_frame_begin call.
+ * @param[in] domain The domain for this frame instance
+ * @param[in] id The instance ID for this frame instance or NULL for current
+ */
+void ITTAPI __itt_frame_end_v3(const __itt_domain *domain, __itt_id *id);
+
+/**
+ * @ingroup frames
+ * @brief Submits a frame instance.
+ * Successive calls to __itt_frame_begin or __itt_frame_submit with the
+ * same ID are ignored until a call to __itt_frame_end or __itt_frame_submit
+ * with the same ID.
+ * Passing special __itt_timestamp_none value as "end" argument means
+ * take the current timestamp as the end timestamp.
+ * @param[in] domain The domain for this frame instance
+ * @param[in] id The instance ID for this frame instance or NULL
+ * @param[in] begin Timestamp of the beginning of the frame
+ * @param[in] end Timestamp of the end of the frame
+ */
+void ITTAPI __itt_frame_submit_v3(const __itt_domain *domain, __itt_id *id,
+ __itt_timestamp begin, __itt_timestamp end);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, frame_begin_v3, (const __itt_domain *domain, __itt_id *id))
+ITT_STUBV(ITTAPI, void, frame_end_v3, (const __itt_domain *domain, __itt_id *id))
+ITT_STUBV(ITTAPI, void, frame_submit_v3, (const __itt_domain *domain, __itt_id *id, __itt_timestamp begin, __itt_timestamp end))
+#define __itt_frame_begin_v3(d,x) ITTNOTIFY_VOID_D1(frame_begin_v3,d,x)
+#define __itt_frame_begin_v3_ptr ITTNOTIFY_NAME(frame_begin_v3)
+#define __itt_frame_end_v3(d,x) ITTNOTIFY_VOID_D1(frame_end_v3,d,x)
+#define __itt_frame_end_v3_ptr ITTNOTIFY_NAME(frame_end_v3)
+#define __itt_frame_submit_v3(d,x,b,e) ITTNOTIFY_VOID_D3(frame_submit_v3,d,x,b,e)
+#define __itt_frame_submit_v3_ptr ITTNOTIFY_NAME(frame_submit_v3)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_frame_begin_v3(domain,id)
+#define __itt_frame_begin_v3_ptr 0
+#define __itt_frame_end_v3(domain,id)
+#define __itt_frame_end_v3_ptr 0
+#define __itt_frame_submit_v3(domain,id,begin,end)
+#define __itt_frame_submit_v3_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_frame_begin_v3_ptr 0
+#define __itt_frame_end_v3_ptr 0
+#define __itt_frame_submit_v3_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} frames group */
+/** @endcond */
+
+/**
+ * @defgroup taskgroup Task Group
+ * @ingroup public
+ * Task Group
+ * @{
+ */
+/**
+ * @ingroup task_groups
+ * @brief Denotes a task_group instance.
+ * Successive calls to __itt_task_group with the same ID are ignored.
+ * @param[in] domain The domain for this task_group instance
+ * @param[in] id The instance ID for this task_group instance. Must not be __itt_null.
+ * @param[in] parentid The instance ID for the parent of this task_group instance, or __itt_null.
+ * @param[in] name The name of this task_group
+ */
+void ITTAPI __itt_task_group(const __itt_domain *domain, __itt_id id, __itt_id parentid, __itt_string_handle *name);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, task_group, (const __itt_domain *domain, __itt_id id, __itt_id parentid, __itt_string_handle *name))
+#define __itt_task_group(d,x,y,z) ITTNOTIFY_VOID_D3(task_group,d,x,y,z)
+#define __itt_task_group_ptr ITTNOTIFY_NAME(task_group)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_task_group(d,x,y,z)
+#define __itt_task_group_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_task_group_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} taskgroup group */
+
+/**
+ * @defgroup tasks Tasks
+ * @ingroup public
+ * A task instance represents a piece of work performed by a particular
+ * thread for a period of time. A call to __itt_task_begin creates a
+ * task instance. This becomes the current instance for that task on that
+ * thread. A following call to __itt_task_end on the same thread ends the
+ * instance. There may be multiple simultaneous instances of tasks with the
+ * same name on different threads. If an ID is specified, the task instance
+ * receives that ID. Nested tasks are allowed.
+ *
+ * Note: The task is defined by the bracketing of __itt_task_begin and
+ * __itt_task_end on the same thread. If some scheduling mechanism causes
+ * task switching (the thread executes a different user task) or task
+ * switching (the user task switches to a different thread) then this breaks
+ * the notion of current instance. Additional API calls are required to
+ * deal with that possibility.
+ * @{
+ */
+
+/**
+ * @ingroup tasks
+ * @brief Begin a task instance.
+ * @param[in] domain The domain for this task
+ * @param[in] taskid The instance ID for this task instance, or __itt_null
+ * @param[in] parentid The parent instance to which this task instance belongs, or __itt_null
+ * @param[in] name The name of this task
+ */
+void ITTAPI __itt_task_begin(const __itt_domain *domain, __itt_id taskid, __itt_id parentid, __itt_string_handle *name);
+
+/**
+ * @ingroup tasks
+ * @brief Begin a task instance.
+ * @param[in] domain The domain for this task
+ * @param[in] taskid The identifier for this task instance (may be 0)
+ * @param[in] parentid The parent of this task (may be 0)
+ * @param[in] fn The pointer to the function you are tracing
+ */
+void ITTAPI __itt_task_begin_fn(const __itt_domain *domain, __itt_id taskid, __itt_id parentid, void* fn);
+
+/**
+ * @ingroup tasks
+ * @brief End the current task instance.
+ * @param[in] domain The domain for this task
+ */
+void ITTAPI __itt_task_end(const __itt_domain *domain);
+
+/**
+ * @ingroup tasks
+ * @brief Begin an overlapped task instance.
+ * @param[in] domain The domain for this task.
+ * @param[in] taskid The identifier for this task instance, *cannot* be __itt_null.
+ * @param[in] parentid The parent of this task, or __itt_null.
+ * @param[in] name The name of this task.
+ */
+void ITTAPI __itt_task_begin_overlapped(const __itt_domain* domain, __itt_id taskid, __itt_id parentid, __itt_string_handle* name);
+
+/**
+ * @ingroup tasks
+ * @brief End an overlapped task instance.
+ * @param[in] domain The domain for this task
+ * @param[in] taskid Explicit ID of finished task
+ */
+void ITTAPI __itt_task_end_overlapped(const __itt_domain *domain, __itt_id taskid);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, task_begin, (const __itt_domain *domain, __itt_id id, __itt_id parentid, __itt_string_handle *name))
+ITT_STUBV(ITTAPI, void, task_begin_fn, (const __itt_domain *domain, __itt_id id, __itt_id parentid, void* fn))
+ITT_STUBV(ITTAPI, void, task_end, (const __itt_domain *domain))
+ITT_STUBV(ITTAPI, void, task_begin_overlapped, (const __itt_domain *domain, __itt_id taskid, __itt_id parentid, __itt_string_handle *name))
+ITT_STUBV(ITTAPI, void, task_end_overlapped, (const __itt_domain *domain, __itt_id taskid))
+#define __itt_task_begin(d,x,y,z) ITTNOTIFY_VOID_D3(task_begin,d,x,y,z)
+#define __itt_task_begin_ptr ITTNOTIFY_NAME(task_begin)
+#define __itt_task_begin_fn(d,x,y,z) ITTNOTIFY_VOID_D3(task_begin_fn,d,x,y,z)
+#define __itt_task_begin_fn_ptr ITTNOTIFY_NAME(task_begin_fn)
+#define __itt_task_end(d) ITTNOTIFY_VOID_D0(task_end,d)
+#define __itt_task_end_ptr ITTNOTIFY_NAME(task_end)
+#define __itt_task_begin_overlapped(d,x,y,z) ITTNOTIFY_VOID_D3(task_begin_overlapped,d,x,y,z)
+#define __itt_task_begin_overlapped_ptr ITTNOTIFY_NAME(task_begin_overlapped)
+#define __itt_task_end_overlapped(d,x) ITTNOTIFY_VOID_D1(task_end_overlapped,d,x)
+#define __itt_task_end_overlapped_ptr ITTNOTIFY_NAME(task_end_overlapped)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_task_begin(domain,id,parentid,name)
+#define __itt_task_begin_ptr 0
+#define __itt_task_begin_fn(domain,id,parentid,fn)
+#define __itt_task_begin_fn_ptr 0
+#define __itt_task_end(domain)
+#define __itt_task_end_ptr 0
+#define __itt_task_begin_overlapped(domain,taskid,parentid,name)
+#define __itt_task_begin_overlapped_ptr 0
+#define __itt_task_end_overlapped(domain,taskid)
+#define __itt_task_end_overlapped_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_task_begin_ptr 0
+#define __itt_task_begin_fn_ptr 0
+#define __itt_task_end_ptr 0
+#define __itt_task_begin_overlapped_ptr 0
+#define __itt_task_end_overlapped_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} tasks group */
+
+
+/**
+ * @defgroup markers Markers
+ * Markers represent a single discreet event in time. Markers have a scope,
+ * described by an enumerated type __itt_scope. Markers are created by
+ * the API call __itt_marker. A marker instance can be given an ID for use in
+ * adding metadata.
+ * @{
+ */
+
+/**
+ * @brief Describes the scope of an event object in the trace.
+ */
+typedef enum
+{
+ __itt_scope_unknown = 0,
+ __itt_scope_global,
+ __itt_scope_track_group,
+ __itt_scope_track,
+ __itt_scope_task,
+ __itt_scope_marker
+} __itt_scope;
+
+/** @cond exclude_from_documentation */
+#define __itt_marker_scope_unknown __itt_scope_unknown
+#define __itt_marker_scope_global __itt_scope_global
+#define __itt_marker_scope_process __itt_scope_track_group
+#define __itt_marker_scope_thread __itt_scope_track
+#define __itt_marker_scope_task __itt_scope_task
+/** @endcond */
+
+/**
+ * @ingroup markers
+ * @brief Create a marker instance
+ * @param[in] domain The domain for this marker
+ * @param[in] id The instance ID for this marker or __itt_null
+ * @param[in] name The name for this marker
+ * @param[in] scope The scope for this marker
+ */
+void ITTAPI __itt_marker(const __itt_domain *domain, __itt_id id, __itt_string_handle *name, __itt_scope scope);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, marker, (const __itt_domain *domain, __itt_id id, __itt_string_handle *name, __itt_scope scope))
+#define __itt_marker(d,x,y,z) ITTNOTIFY_VOID_D3(marker,d,x,y,z)
+#define __itt_marker_ptr ITTNOTIFY_NAME(marker)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_marker(domain,id,name,scope)
+#define __itt_marker_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_marker_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} markers group */
+
+/**
+ * @defgroup metadata Metadata
+ * The metadata API is used to attach extra information to named
+ * entities. Metadata can be attached to an identified named entity by ID,
+ * or to the current entity (which is always a task).
+ *
+ * Conceptually metadata has a type (what kind of metadata), a key (the
+ * name of the metadata), and a value (the actual data). The encoding of
+ * the value depends on the type of the metadata.
+ *
+ * The type of metadata is specified by an enumerated type __itt_metdata_type.
+ * @{
+ */
+
+/**
+ * @ingroup parameters
+ * @brief describes the type of metadata
+ */
+typedef enum {
+ __itt_metadata_unknown = 0,
+ __itt_metadata_u64, /**< Unsigned 64-bit integer */
+ __itt_metadata_s64, /**< Signed 64-bit integer */
+ __itt_metadata_u32, /**< Unsigned 32-bit integer */
+ __itt_metadata_s32, /**< Signed 32-bit integer */
+ __itt_metadata_u16, /**< Unsigned 16-bit integer */
+ __itt_metadata_s16, /**< Signed 16-bit integer */
+ __itt_metadata_float, /**< Signed 32-bit floating-point */
+ __itt_metadata_double /**< SIgned 64-bit floating-point */
+} __itt_metadata_type;
+
+/**
+ * @ingroup parameters
+ * @brief Add metadata to an instance of a named entity.
+ * @param[in] domain The domain controlling the call
+ * @param[in] id The identifier of the instance to which the metadata is to be added, or __itt_null to add to the current task
+ * @param[in] key The name of the metadata
+ * @param[in] type The type of the metadata
+ * @param[in] count The number of elements of the given type. If count == 0, no metadata will be added.
+ * @param[in] data The metadata itself
+*/
+void ITTAPI __itt_metadata_add(const __itt_domain *domain, __itt_id id, __itt_string_handle *key, __itt_metadata_type type, size_t count, void *data);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, metadata_add, (const __itt_domain *domain, __itt_id id, __itt_string_handle *key, __itt_metadata_type type, size_t count, void *data))
+#define __itt_metadata_add(d,x,y,z,a,b) ITTNOTIFY_VOID_D5(metadata_add,d,x,y,z,a,b)
+#define __itt_metadata_add_ptr ITTNOTIFY_NAME(metadata_add)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_metadata_add(d,x,y,z,a,b)
+#define __itt_metadata_add_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_metadata_add_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup parameters
+ * @brief Add string metadata to an instance of a named entity.
+ * @param[in] domain The domain controlling the call
+ * @param[in] id The identifier of the instance to which the metadata is to be added, or __itt_null to add to the current task
+ * @param[in] key The name of the metadata
+ * @param[in] data The metadata itself
+ * @param[in] length The number of characters in the string, or -1 if the length is unknown but the string is null-terminated
+*/
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+void ITTAPI __itt_metadata_str_addA(const __itt_domain *domain, __itt_id id, __itt_string_handle *key, const char *data, size_t length);
+void ITTAPI __itt_metadata_str_addW(const __itt_domain *domain, __itt_id id, __itt_string_handle *key, const wchar_t *data, size_t length);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_metadata_str_add __itt_metadata_str_addW
+# define __itt_metadata_str_add_ptr __itt_metadata_str_addW_ptr
+#else /* UNICODE */
+# define __itt_metadata_str_add __itt_metadata_str_addA
+# define __itt_metadata_str_add_ptr __itt_metadata_str_addA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+void ITTAPI __itt_metadata_str_add(const __itt_domain *domain, __itt_id id, __itt_string_handle *key, const char *data, size_t length);
+#endif
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUBV(ITTAPI, void, metadata_str_addA, (const __itt_domain *domain, __itt_id id, __itt_string_handle *key, const char *data, size_t length))
+ITT_STUBV(ITTAPI, void, metadata_str_addW, (const __itt_domain *domain, __itt_id id, __itt_string_handle *key, const wchar_t *data, size_t length))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUBV(ITTAPI, void, metadata_str_add, (const __itt_domain *domain, __itt_id id, __itt_string_handle *key, const char *data, size_t length))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_metadata_str_addA(d,x,y,z,a) ITTNOTIFY_VOID_D4(metadata_str_addA,d,x,y,z,a)
+#define __itt_metadata_str_addA_ptr ITTNOTIFY_NAME(metadata_str_addA)
+#define __itt_metadata_str_addW(d,x,y,z,a) ITTNOTIFY_VOID_D4(metadata_str_addW,d,x,y,z,a)
+#define __itt_metadata_str_addW_ptr ITTNOTIFY_NAME(metadata_str_addW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_metadata_str_add(d,x,y,z,a) ITTNOTIFY_VOID_D4(metadata_str_add,d,x,y,z,a)
+#define __itt_metadata_str_add_ptr ITTNOTIFY_NAME(metadata_str_add)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_metadata_str_addA(d,x,y,z,a)
+#define __itt_metadata_str_addA_ptr 0
+#define __itt_metadata_str_addW(d,x,y,z,a)
+#define __itt_metadata_str_addW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_metadata_str_add(d,x,y,z,a)
+#define __itt_metadata_str_add_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_metadata_str_addA_ptr 0
+#define __itt_metadata_str_addW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_metadata_str_add_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup parameters
+ * @brief Add metadata to an instance of a named entity.
+ * @param[in] domain The domain controlling the call
+ * @param[in] scope The scope of the instance to which the metadata is to be added
+
+ * @param[in] id The identifier of the instance to which the metadata is to be added, or __itt_null to add to the current task
+
+ * @param[in] key The name of the metadata
+ * @param[in] type The type of the metadata
+ * @param[in] count The number of elements of the given type. If count == 0, no metadata will be added.
+ * @param[in] data The metadata itself
+*/
+void ITTAPI __itt_metadata_add_with_scope(const __itt_domain *domain, __itt_scope scope, __itt_string_handle *key, __itt_metadata_type type, size_t count, void *data);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, metadata_add_with_scope, (const __itt_domain *domain, __itt_scope scope, __itt_string_handle *key, __itt_metadata_type type, size_t count, void *data))
+#define __itt_metadata_add_with_scope(d,x,y,z,a,b) ITTNOTIFY_VOID_D5(metadata_add_with_scope,d,x,y,z,a,b)
+#define __itt_metadata_add_with_scope_ptr ITTNOTIFY_NAME(metadata_add_with_scope)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_metadata_add_with_scope(d,x,y,z,a,b)
+#define __itt_metadata_add_with_scope_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_metadata_add_with_scope_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup parameters
+ * @brief Add string metadata to an instance of a named entity.
+ * @param[in] domain The domain controlling the call
+ * @param[in] scope The scope of the instance to which the metadata is to be added
+
+ * @param[in] id The identifier of the instance to which the metadata is to be added, or __itt_null to add to the current task
+
+ * @param[in] key The name of the metadata
+ * @param[in] data The metadata itself
+ * @param[in] length The number of characters in the string, or -1 if the length is unknown but the string is null-terminated
+*/
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+void ITTAPI __itt_metadata_str_add_with_scopeA(const __itt_domain *domain, __itt_scope scope, __itt_string_handle *key, const char *data, size_t length);
+void ITTAPI __itt_metadata_str_add_with_scopeW(const __itt_domain *domain, __itt_scope scope, __itt_string_handle *key, const wchar_t *data, size_t length);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_metadata_str_add_with_scope __itt_metadata_str_add_with_scopeW
+# define __itt_metadata_str_add_with_scope_ptr __itt_metadata_str_add_with_scopeW_ptr
+#else /* UNICODE */
+# define __itt_metadata_str_add_with_scope __itt_metadata_str_add_with_scopeA
+# define __itt_metadata_str_add_with_scope_ptr __itt_metadata_str_add_with_scopeA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+void ITTAPI __itt_metadata_str_add_with_scope(const __itt_domain *domain, __itt_scope scope, __itt_string_handle *key, const char *data, size_t length);
+#endif
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUBV(ITTAPI, void, metadata_str_add_with_scopeA, (const __itt_domain *domain, __itt_scope scope, __itt_string_handle *key, const char *data, size_t length))
+ITT_STUBV(ITTAPI, void, metadata_str_add_with_scopeW, (const __itt_domain *domain, __itt_scope scope, __itt_string_handle *key, const wchar_t *data, size_t length))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUBV(ITTAPI, void, metadata_str_add_with_scope, (const __itt_domain *domain, __itt_scope scope, __itt_string_handle *key, const char *data, size_t length))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_metadata_str_add_with_scopeA(d,x,y,z,a) ITTNOTIFY_VOID_D4(metadata_str_add_with_scopeA,d,x,y,z,a)
+#define __itt_metadata_str_add_with_scopeA_ptr ITTNOTIFY_NAME(metadata_str_add_with_scopeA)
+#define __itt_metadata_str_add_with_scopeW(d,x,y,z,a) ITTNOTIFY_VOID_D4(metadata_str_add_with_scopeW,d,x,y,z,a)
+#define __itt_metadata_str_add_with_scopeW_ptr ITTNOTIFY_NAME(metadata_str_add_with_scopeW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_metadata_str_add_with_scope(d,x,y,z,a) ITTNOTIFY_VOID_D4(metadata_str_add_with_scope,d,x,y,z,a)
+#define __itt_metadata_str_add_with_scope_ptr ITTNOTIFY_NAME(metadata_str_add_with_scope)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_metadata_str_add_with_scopeA(d,x,y,z,a)
+#define __itt_metadata_str_add_with_scopeA_ptr 0
+#define __itt_metadata_str_add_with_scopeW(d,x,y,z,a)
+#define __itt_metadata_str_add_with_scopeW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_metadata_str_add_with_scope(d,x,y,z,a)
+#define __itt_metadata_str_add_with_scope_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_metadata_str_add_with_scopeA_ptr 0
+#define __itt_metadata_str_add_with_scopeW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_metadata_str_add_with_scope_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @} metadata group */
+
+/**
+ * @defgroup relations Relations
+ * Instances of named entities can be explicitly associated with other
+ * instances using instance IDs and the relationship API calls.
+ *
+ * @{
+ */
+
+/**
+ * @ingroup relations
+ * @brief The kind of relation between two instances is specified by the enumerated type __itt_relation.
+ * Relations between instances can be added with an API call. The relation
+ * API uses instance IDs. Relations can be added before or after the actual
+ * instances are created and persist independently of the instances. This
+ * is the motivation for having different lifetimes for instance IDs and
+ * the actual instances.
+ */
+typedef enum
+{
+ __itt_relation_is_unknown = 0,
+ __itt_relation_is_dependent_on, /**< "A is dependent on B" means that A cannot start until B completes */
+ __itt_relation_is_sibling_of, /**< "A is sibling of B" means that A and B were created as a group */
+ __itt_relation_is_parent_of, /**< "A is parent of B" means that A created B */
+ __itt_relation_is_continuation_of, /**< "A is continuation of B" means that A assumes the dependencies of B */
+ __itt_relation_is_child_of, /**< "A is child of B" means that A was created by B (inverse of is_parent_of) */
+ __itt_relation_is_continued_by, /**< "A is continued by B" means that B assumes the dependencies of A (inverse of is_continuation_of) */
+ __itt_relation_is_predecessor_to /**< "A is predecessor to B" means that B cannot start until A completes (inverse of is_dependent_on) */
+} __itt_relation;
+
+/**
+ * @ingroup relations
+ * @brief Add a relation to the current task instance.
+ * The current task instance is the head of the relation.
+ * @param[in] domain The domain controlling this call
+ * @param[in] relation The kind of relation
+ * @param[in] tail The ID for the tail of the relation
+ */
+void ITTAPI __itt_relation_add_to_current(const __itt_domain *domain, __itt_relation relation, __itt_id tail);
+
+/**
+ * @ingroup relations
+ * @brief Add a relation between two instance identifiers.
+ * @param[in] domain The domain controlling this call
+ * @param[in] head The ID for the head of the relation
+ * @param[in] relation The kind of relation
+ * @param[in] tail The ID for the tail of the relation
+ */
+void ITTAPI __itt_relation_add(const __itt_domain *domain, __itt_id head, __itt_relation relation, __itt_id tail);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, relation_add_to_current, (const __itt_domain *domain, __itt_relation relation, __itt_id tail))
+ITT_STUBV(ITTAPI, void, relation_add, (const __itt_domain *domain, __itt_id head, __itt_relation relation, __itt_id tail))
+#define __itt_relation_add_to_current(d,x,y) ITTNOTIFY_VOID_D2(relation_add_to_current,d,x,y)
+#define __itt_relation_add_to_current_ptr ITTNOTIFY_NAME(relation_add_to_current)
+#define __itt_relation_add(d,x,y,z) ITTNOTIFY_VOID_D3(relation_add,d,x,y,z)
+#define __itt_relation_add_ptr ITTNOTIFY_NAME(relation_add)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_relation_add_to_current(d,x,y)
+#define __itt_relation_add_to_current_ptr 0
+#define __itt_relation_add(d,x,y,z)
+#define __itt_relation_add_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_relation_add_to_current_ptr 0
+#define __itt_relation_add_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} relations group */
+
+/** @cond exclude_from_documentation */
+#pragma pack(push, 8)
+
+typedef struct ___itt_clock_info
+{
+ unsigned long long clock_freq; /*!< Clock domain frequency */
+ unsigned long long clock_base; /*!< Clock domain base timestamp */
+} __itt_clock_info;
+
+#pragma pack(pop)
+/** @endcond */
+
+/** @cond exclude_from_documentation */
+typedef void (ITTAPI *__itt_get_clock_info_fn)(__itt_clock_info* clock_info, void* data);
+/** @endcond */
+
+/** @cond exclude_from_documentation */
+#pragma pack(push, 8)
+
+typedef struct ___itt_clock_domain
+{
+ __itt_clock_info info; /*!< Most recent clock domain info */
+ __itt_get_clock_info_fn fn; /*!< Callback function pointer */
+ void* fn_data; /*!< Input argument for the callback function */
+ int extra1; /*!< Reserved. Must be zero */
+ void* extra2; /*!< Reserved. Must be zero */
+ struct ___itt_clock_domain* next;
+} __itt_clock_domain;
+
+#pragma pack(pop)
+/** @endcond */
+
+/**
+ * @ingroup clockdomains
+ * @brief Create a clock domain.
+ * Certain applications require the capability to trace their application using
+ * a clock domain different than the CPU, for instance the instrumentation of events
+ * that occur on a GPU.
+ * Because the set of domains is expected to be static over the application's execution time,
+ * there is no mechanism to destroy a domain.
+ * Any domain can be accessed by any thread in the process, regardless of which thread created
+ * the domain. This call is thread-safe.
+ * @param[in] fn A pointer to a callback function which retrieves alternative CPU timestamps
+ * @param[in] fn_data Argument for a callback function; may be NULL
+ */
+__itt_clock_domain* ITTAPI __itt_clock_domain_create(__itt_get_clock_info_fn fn, void* fn_data);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(ITTAPI, __itt_clock_domain*, clock_domain_create, (__itt_get_clock_info_fn fn, void* fn_data))
+#define __itt_clock_domain_create ITTNOTIFY_DATA(clock_domain_create)
+#define __itt_clock_domain_create_ptr ITTNOTIFY_NAME(clock_domain_create)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_clock_domain_create(fn,fn_data) (__itt_clock_domain*)0
+#define __itt_clock_domain_create_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_clock_domain_create_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup clockdomains
+ * @brief Recalculate clock domains frequences and clock base timestamps.
+ */
+void ITTAPI __itt_clock_domain_reset(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, clock_domain_reset, (void))
+#define __itt_clock_domain_reset ITTNOTIFY_VOID(clock_domain_reset)
+#define __itt_clock_domain_reset_ptr ITTNOTIFY_NAME(clock_domain_reset)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_clock_domain_reset()
+#define __itt_clock_domain_reset_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_clock_domain_reset_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup clockdomain
+ * @brief Create an instance of identifier. This establishes the beginning of the lifetime of
+ * an instance of the given ID in the trace. Once this lifetime starts, the ID can be used to
+ * tag named entity instances in calls such as __itt_task_begin, and to specify relationships among
+ * identified named entity instances, using the \ref relations APIs.
+ * @param[in] domain The domain controlling the execution of this call.
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] id The ID to create.
+ */
+void ITTAPI __itt_id_create_ex(const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id id);
+
+/**
+ * @ingroup clockdomain
+ * @brief Destroy an instance of identifier. This ends the lifetime of the current instance of the
+ * given ID value in the trace. Any relationships that are established after this lifetime ends are
+ * invalid. This call must be performed before the given ID value can be reused for a different
+ * named entity instance.
+ * @param[in] domain The domain controlling the execution of this call.
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] id The ID to destroy.
+ */
+void ITTAPI __itt_id_destroy_ex(const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id id);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, id_create_ex, (const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id id))
+ITT_STUBV(ITTAPI, void, id_destroy_ex, (const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id id))
+#define __itt_id_create_ex(d,x,y,z) ITTNOTIFY_VOID_D3(id_create_ex,d,x,y,z)
+#define __itt_id_create_ex_ptr ITTNOTIFY_NAME(id_create_ex)
+#define __itt_id_destroy_ex(d,x,y,z) ITTNOTIFY_VOID_D3(id_destroy_ex,d,x,y,z)
+#define __itt_id_destroy_ex_ptr ITTNOTIFY_NAME(id_destroy_ex)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_id_create_ex(domain,clock_domain,timestamp,id)
+#define __itt_id_create_ex_ptr 0
+#define __itt_id_destroy_ex(domain,clock_domain,timestamp,id)
+#define __itt_id_destroy_ex_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_id_create_ex_ptr 0
+#define __itt_id_destroy_ex_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup clockdomain
+ * @brief Begin a task instance.
+ * @param[in] domain The domain for this task
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] taskid The instance ID for this task instance, or __itt_null
+ * @param[in] parentid The parent instance to which this task instance belongs, or __itt_null
+ * @param[in] name The name of this task
+ */
+void ITTAPI __itt_task_begin_ex(const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id taskid, __itt_id parentid, __itt_string_handle* name);
+
+/**
+ * @ingroup clockdomain
+ * @brief Begin a task instance.
+ * @param[in] domain The domain for this task
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] taskid The identifier for this task instance, or __itt_null
+ * @param[in] parentid The parent of this task, or __itt_null
+ * @param[in] fn The pointer to the function you are tracing
+ */
+void ITTAPI __itt_task_begin_fn_ex(const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id taskid, __itt_id parentid, void* fn);
+
+/**
+ * @ingroup clockdomain
+ * @brief End the current task instance.
+ * @param[in] domain The domain for this task
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ */
+void ITTAPI __itt_task_end_ex(const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, task_begin_ex, (const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id id, __itt_id parentid, __itt_string_handle *name))
+ITT_STUBV(ITTAPI, void, task_begin_fn_ex, (const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id id, __itt_id parentid, void* fn))
+ITT_STUBV(ITTAPI, void, task_end_ex, (const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp))
+#define __itt_task_begin_ex(d,x,y,z,a,b) ITTNOTIFY_VOID_D5(task_begin_ex,d,x,y,z,a,b)
+#define __itt_task_begin_ex_ptr ITTNOTIFY_NAME(task_begin_ex)
+#define __itt_task_begin_fn_ex(d,x,y,z,a,b) ITTNOTIFY_VOID_D5(task_begin_fn_ex,d,x,y,z,a,b)
+#define __itt_task_begin_fn_ex_ptr ITTNOTIFY_NAME(task_begin_fn_ex)
+#define __itt_task_end_ex(d,x,y) ITTNOTIFY_VOID_D2(task_end_ex,d,x,y)
+#define __itt_task_end_ex_ptr ITTNOTIFY_NAME(task_end_ex)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_task_begin_ex(domain,clock_domain,timestamp,id,parentid,name)
+#define __itt_task_begin_ex_ptr 0
+#define __itt_task_begin_fn_ex(domain,clock_domain,timestamp,id,parentid,fn)
+#define __itt_task_begin_fn_ex_ptr 0
+#define __itt_task_end_ex(domain,clock_domain,timestamp)
+#define __itt_task_end_ex_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_task_begin_ex_ptr 0
+#define __itt_task_begin_fn_ex_ptr 0
+#define __itt_task_end_ex_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @defgroup counters Counters
+ * @ingroup public
+ * Counters are user-defined objects with a monotonically increasing
+ * value. Counter values are 64-bit unsigned integers.
+ * Counters have names that can be displayed in
+ * the tools.
+ * @{
+ */
+
+/**
+ * @brief opaque structure for counter identification
+ */
+/** @cond exclude_from_documentation */
+
+typedef struct ___itt_counter* __itt_counter;
+
+/**
+ * @brief Create an unsigned 64 bits integer counter with given name/domain
+ *
+ * After __itt_counter_create() is called, __itt_counter_inc(id), __itt_counter_inc_delta(id, delta),
+ * __itt_counter_set_value(id, value_ptr) or __itt_counter_set_value_ex(id, clock_domain, timestamp, value_ptr)
+ * can be used to change the value of the counter, where value_ptr is a pointer to an unsigned 64 bits integer
+ *
+ * The call is equal to __itt_counter_create_typed(name, domain, __itt_metadata_u64)
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+__itt_counter ITTAPI __itt_counter_createA(const char *name, const char *domain);
+__itt_counter ITTAPI __itt_counter_createW(const wchar_t *name, const wchar_t *domain);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_counter_create __itt_counter_createW
+# define __itt_counter_create_ptr __itt_counter_createW_ptr
+#else /* UNICODE */
+# define __itt_counter_create __itt_counter_createA
+# define __itt_counter_create_ptr __itt_counter_createA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+__itt_counter ITTAPI __itt_counter_create(const char *name, const char *domain);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, __itt_counter, counter_createA, (const char *name, const char *domain))
+ITT_STUB(ITTAPI, __itt_counter, counter_createW, (const wchar_t *name, const wchar_t *domain))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, __itt_counter, counter_create, (const char *name, const char *domain))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_counter_createA ITTNOTIFY_DATA(counter_createA)
+#define __itt_counter_createA_ptr ITTNOTIFY_NAME(counter_createA)
+#define __itt_counter_createW ITTNOTIFY_DATA(counter_createW)
+#define __itt_counter_createW_ptr ITTNOTIFY_NAME(counter_createW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_counter_create ITTNOTIFY_DATA(counter_create)
+#define __itt_counter_create_ptr ITTNOTIFY_NAME(counter_create)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_counter_createA(name, domain)
+#define __itt_counter_createA_ptr 0
+#define __itt_counter_createW(name, domain)
+#define __itt_counter_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_counter_create(name, domain)
+#define __itt_counter_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_counter_createA_ptr 0
+#define __itt_counter_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_counter_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Increment the unsigned 64 bits integer counter value
+ *
+ * Calling this function to non-unsigned 64 bits integer counters has no effect
+ */
+void ITTAPI __itt_counter_inc(__itt_counter id);
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_inc, (__itt_counter id))
+#define __itt_counter_inc ITTNOTIFY_VOID(counter_inc)
+#define __itt_counter_inc_ptr ITTNOTIFY_NAME(counter_inc)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_inc(id)
+#define __itt_counter_inc_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_inc_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/**
+ * @brief Increment the unsigned 64 bits integer counter value with x
+ *
+ * Calling this function to non-unsigned 64 bits integer counters has no effect
+ */
+void ITTAPI __itt_counter_inc_delta(__itt_counter id, unsigned long long value);
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_inc_delta, (__itt_counter id, unsigned long long value))
+#define __itt_counter_inc_delta ITTNOTIFY_VOID(counter_inc_delta)
+#define __itt_counter_inc_delta_ptr ITTNOTIFY_NAME(counter_inc_delta)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_inc_delta(id, value)
+#define __itt_counter_inc_delta_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_inc_delta_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Decrement the unsigned 64 bits integer counter value
+ *
+ * Calling this function to non-unsigned 64 bits integer counters has no effect
+ */
+void ITTAPI __itt_counter_dec(__itt_counter id);
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_dec, (__itt_counter id))
+#define __itt_counter_dec ITTNOTIFY_VOID(counter_dec)
+#define __itt_counter_dec_ptr ITTNOTIFY_NAME(counter_dec)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_dec(id)
+#define __itt_counter_dec_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_dec_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/**
+ * @brief Decrement the unsigned 64 bits integer counter value with x
+ *
+ * Calling this function to non-unsigned 64 bits integer counters has no effect
+ */
+void ITTAPI __itt_counter_dec_delta(__itt_counter id, unsigned long long value);
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_dec_delta, (__itt_counter id, unsigned long long value))
+#define __itt_counter_dec_delta ITTNOTIFY_VOID(counter_dec_delta)
+#define __itt_counter_dec_delta_ptr ITTNOTIFY_NAME(counter_dec_delta)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_dec_delta(id, value)
+#define __itt_counter_dec_delta_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_dec_delta_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup counters
+ * @brief Increment a counter by one.
+ * The first call with a given name creates a counter by that name and sets its
+ * value to zero. Successive calls increment the counter value.
+ * @param[in] domain The domain controlling the call. Counter names are not domain specific.
+ * The domain argument is used only to enable or disable the API calls.
+ * @param[in] name The name of the counter
+ */
+void ITTAPI __itt_counter_inc_v3(const __itt_domain *domain, __itt_string_handle *name);
+
+/**
+ * @ingroup counters
+ * @brief Increment a counter by the value specified in delta.
+ * @param[in] domain The domain controlling the call. Counter names are not domain specific.
+ * The domain argument is used only to enable or disable the API calls.
+ * @param[in] name The name of the counter
+ * @param[in] delta The amount by which to increment the counter
+ */
+void ITTAPI __itt_counter_inc_delta_v3(const __itt_domain *domain, __itt_string_handle *name, unsigned long long delta);
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_inc_v3, (const __itt_domain *domain, __itt_string_handle *name))
+ITT_STUBV(ITTAPI, void, counter_inc_delta_v3, (const __itt_domain *domain, __itt_string_handle *name, unsigned long long delta))
+#define __itt_counter_inc_v3(d,x) ITTNOTIFY_VOID_D1(counter_inc_v3,d,x)
+#define __itt_counter_inc_v3_ptr ITTNOTIFY_NAME(counter_inc_v3)
+#define __itt_counter_inc_delta_v3(d,x,y) ITTNOTIFY_VOID_D2(counter_inc_delta_v3,d,x,y)
+#define __itt_counter_inc_delta_v3_ptr ITTNOTIFY_NAME(counter_inc_delta_v3)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_inc_v3(domain,name)
+#define __itt_counter_inc_v3_ptr 0
+#define __itt_counter_inc_delta_v3(domain,name,delta)
+#define __itt_counter_inc_delta_v3_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_inc_v3_ptr 0
+#define __itt_counter_inc_delta_v3_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+
+/**
+ * @ingroup counters
+ * @brief Decrement a counter by one.
+ * The first call with a given name creates a counter by that name and sets its
+ * value to zero. Successive calls decrement the counter value.
+ * @param[in] domain The domain controlling the call. Counter names are not domain specific.
+ * The domain argument is used only to enable or disable the API calls.
+ * @param[in] name The name of the counter
+ */
+void ITTAPI __itt_counter_dec_v3(const __itt_domain *domain, __itt_string_handle *name);
+
+/**
+ * @ingroup counters
+ * @brief Decrement a counter by the value specified in delta.
+ * @param[in] domain The domain controlling the call. Counter names are not domain specific.
+ * The domain argument is used only to enable or disable the API calls.
+ * @param[in] name The name of the counter
+ * @param[in] delta The amount by which to decrement the counter
+ */
+void ITTAPI __itt_counter_dec_delta_v3(const __itt_domain *domain, __itt_string_handle *name, unsigned long long delta);
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_dec_v3, (const __itt_domain *domain, __itt_string_handle *name))
+ITT_STUBV(ITTAPI, void, counter_dec_delta_v3, (const __itt_domain *domain, __itt_string_handle *name, unsigned long long delta))
+#define __itt_counter_dec_v3(d,x) ITTNOTIFY_VOID_D1(counter_dec_v3,d,x)
+#define __itt_counter_dec_v3_ptr ITTNOTIFY_NAME(counter_dec_v3)
+#define __itt_counter_dec_delta_v3(d,x,y) ITTNOTIFY_VOID_D2(counter_dec_delta_v3,d,x,y)
+#define __itt_counter_dec_delta_v3_ptr ITTNOTIFY_NAME(counter_dec_delta_v3)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_dec_v3(domain,name)
+#define __itt_counter_dec_v3_ptr 0
+#define __itt_counter_dec_delta_v3(domain,name,delta)
+#define __itt_counter_dec_delta_v3_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_dec_v3_ptr 0
+#define __itt_counter_dec_delta_v3_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @} counters group */
+
+
+/**
+ * @brief Set the counter value
+ */
+void ITTAPI __itt_counter_set_value(__itt_counter id, void *value_ptr);
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_set_value, (__itt_counter id, void *value_ptr))
+#define __itt_counter_set_value ITTNOTIFY_VOID(counter_set_value)
+#define __itt_counter_set_value_ptr ITTNOTIFY_NAME(counter_set_value)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_set_value(id, value_ptr)
+#define __itt_counter_set_value_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_set_value_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Set the counter value
+ */
+void ITTAPI __itt_counter_set_value_ex(__itt_counter id, __itt_clock_domain *clock_domain, unsigned long long timestamp, void *value_ptr);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_set_value_ex, (__itt_counter id, __itt_clock_domain *clock_domain, unsigned long long timestamp, void *value_ptr))
+#define __itt_counter_set_value_ex ITTNOTIFY_VOID(counter_set_value_ex)
+#define __itt_counter_set_value_ex_ptr ITTNOTIFY_NAME(counter_set_value_ex)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_set_value_ex(id, clock_domain, timestamp, value_ptr)
+#define __itt_counter_set_value_ex_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_set_value_ex_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Create a typed counter with given name/domain
+ *
+ * After __itt_counter_create_typed() is called, __itt_counter_inc(id), __itt_counter_inc_delta(id, delta),
+ * __itt_counter_set_value(id, value_ptr) or __itt_counter_set_value_ex(id, clock_domain, timestamp, value_ptr)
+ * can be used to change the value of the counter
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+__itt_counter ITTAPI __itt_counter_create_typedA(const char *name, const char *domain, __itt_metadata_type type);
+__itt_counter ITTAPI __itt_counter_create_typedW(const wchar_t *name, const wchar_t *domain, __itt_metadata_type type);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_counter_create_typed __itt_counter_create_typedW
+# define __itt_counter_create_typed_ptr __itt_counter_create_typedW_ptr
+#else /* UNICODE */
+# define __itt_counter_create_typed __itt_counter_create_typedA
+# define __itt_counter_create_typed_ptr __itt_counter_create_typedA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+__itt_counter ITTAPI __itt_counter_create_typed(const char *name, const char *domain, __itt_metadata_type type);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, __itt_counter, counter_create_typedA, (const char *name, const char *domain, __itt_metadata_type type))
+ITT_STUB(ITTAPI, __itt_counter, counter_create_typedW, (const wchar_t *name, const wchar_t *domain, __itt_metadata_type type))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, __itt_counter, counter_create_typed, (const char *name, const char *domain, __itt_metadata_type type))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_counter_create_typedA ITTNOTIFY_DATA(counter_create_typedA)
+#define __itt_counter_create_typedA_ptr ITTNOTIFY_NAME(counter_create_typedA)
+#define __itt_counter_create_typedW ITTNOTIFY_DATA(counter_create_typedW)
+#define __itt_counter_create_typedW_ptr ITTNOTIFY_NAME(counter_create_typedW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_counter_create_typed ITTNOTIFY_DATA(counter_create_typed)
+#define __itt_counter_create_typed_ptr ITTNOTIFY_NAME(counter_create_typed)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_counter_create_typedA(name, domain, type)
+#define __itt_counter_create_typedA_ptr 0
+#define __itt_counter_create_typedW(name, domain, type)
+#define __itt_counter_create_typedW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_counter_create_typed(name, domain, type)
+#define __itt_counter_create_typed_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_counter_create_typedA_ptr 0
+#define __itt_counter_create_typedW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_counter_create_typed_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Destroy the counter identified by the pointer previously returned by __itt_counter_create() or
+ * __itt_counter_create_typed()
+ */
+void ITTAPI __itt_counter_destroy(__itt_counter id);
+
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, counter_destroy, (__itt_counter id))
+#define __itt_counter_destroy ITTNOTIFY_VOID(counter_destroy)
+#define __itt_counter_destroy_ptr ITTNOTIFY_NAME(counter_destroy)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_counter_destroy(id)
+#define __itt_counter_destroy_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_counter_destroy_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} counters group */
+
+/**
+ * @ingroup markers
+ * @brief Create a marker instance.
+ * @param[in] domain The domain for this marker
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] id The instance ID for this marker, or __itt_null
+ * @param[in] name The name for this marker
+ * @param[in] scope The scope for this marker
+ */
+void ITTAPI __itt_marker_ex(const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id id, __itt_string_handle *name, __itt_scope scope);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, marker_ex, (const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id id, __itt_string_handle *name, __itt_scope scope))
+#define __itt_marker_ex(d,x,y,z,a,b) ITTNOTIFY_VOID_D5(marker_ex,d,x,y,z,a,b)
+#define __itt_marker_ex_ptr ITTNOTIFY_NAME(marker_ex)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_marker_ex(domain,clock_domain,timestamp,id,name,scope)
+#define __itt_marker_ex_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_marker_ex_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @ingroup clockdomain
+ * @brief Add a relation to the current task instance.
+ * The current task instance is the head of the relation.
+ * @param[in] domain The domain controlling this call
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] relation The kind of relation
+ * @param[in] tail The ID for the tail of the relation
+ */
+void ITTAPI __itt_relation_add_to_current_ex(const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_relation relation, __itt_id tail);
+
+/**
+ * @ingroup clockdomain
+ * @brief Add a relation between two instance identifiers.
+ * @param[in] domain The domain controlling this call
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] head The ID for the head of the relation
+ * @param[in] relation The kind of relation
+ * @param[in] tail The ID for the tail of the relation
+ */
+void ITTAPI __itt_relation_add_ex(const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id head, __itt_relation relation, __itt_id tail);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, relation_add_to_current_ex, (const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_relation relation, __itt_id tail))
+ITT_STUBV(ITTAPI, void, relation_add_ex, (const __itt_domain *domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id head, __itt_relation relation, __itt_id tail))
+#define __itt_relation_add_to_current_ex(d,x,y,z,a) ITTNOTIFY_VOID_D4(relation_add_to_current_ex,d,x,y,z,a)
+#define __itt_relation_add_to_current_ex_ptr ITTNOTIFY_NAME(relation_add_to_current_ex)
+#define __itt_relation_add_ex(d,x,y,z,a,b) ITTNOTIFY_VOID_D5(relation_add_ex,d,x,y,z,a,b)
+#define __itt_relation_add_ex_ptr ITTNOTIFY_NAME(relation_add_ex)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_relation_add_to_current_ex(domain,clock_domain,timestame,relation,tail)
+#define __itt_relation_add_to_current_ex_ptr 0
+#define __itt_relation_add_ex(domain,clock_domain,timestamp,head,relation,tail)
+#define __itt_relation_add_ex_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_relation_add_to_current_ex_ptr 0
+#define __itt_relation_add_ex_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @cond exclude_from_documentation */
+typedef enum ___itt_track_group_type
+{
+ __itt_track_group_type_normal = 0
+} __itt_track_group_type;
+/** @endcond */
+
+/** @cond exclude_from_documentation */
+#pragma pack(push, 8)
+
+typedef struct ___itt_track_group
+{
+ __itt_string_handle* name; /*!< Name of the track group */
+ struct ___itt_track* track; /*!< List of child tracks */
+ __itt_track_group_type tgtype; /*!< Type of the track group */
+ int extra1; /*!< Reserved. Must be zero */
+ void* extra2; /*!< Reserved. Must be zero */
+ struct ___itt_track_group* next;
+} __itt_track_group;
+
+#pragma pack(pop)
+/** @endcond */
+
+/**
+ * @brief Placeholder for custom track types. Currently, "normal" custom track
+ * is the only available track type.
+ */
+typedef enum ___itt_track_type
+{
+ __itt_track_type_normal = 0
+#ifdef INTEL_ITTNOTIFY_API_PRIVATE
+ , __itt_track_type_queue
+#endif /* INTEL_ITTNOTIFY_API_PRIVATE */
+} __itt_track_type;
+
+/** @cond exclude_from_documentation */
+#pragma pack(push, 8)
+
+typedef struct ___itt_track
+{
+ __itt_string_handle* name; /*!< Name of the track group */
+ __itt_track_group* group; /*!< Parent group to a track */
+ __itt_track_type ttype; /*!< Type of the track */
+ int extra1; /*!< Reserved. Must be zero */
+ void* extra2; /*!< Reserved. Must be zero */
+ struct ___itt_track* next;
+} __itt_track;
+
+#pragma pack(pop)
+/** @endcond */
+
+/**
+ * @brief Create logical track group.
+ */
+__itt_track_group* ITTAPI __itt_track_group_create(__itt_string_handle* name, __itt_track_group_type track_group_type);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(ITTAPI, __itt_track_group*, track_group_create, (__itt_string_handle* name, __itt_track_group_type track_group_type))
+#define __itt_track_group_create ITTNOTIFY_DATA(track_group_create)
+#define __itt_track_group_create_ptr ITTNOTIFY_NAME(track_group_create)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_track_group_create(name) (__itt_track_group*)0
+#define __itt_track_group_create_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_track_group_create_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Create logical track.
+ */
+__itt_track* ITTAPI __itt_track_create(__itt_track_group* track_group, __itt_string_handle* name, __itt_track_type track_type);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(ITTAPI, __itt_track*, track_create, (__itt_track_group* track_group,__itt_string_handle* name, __itt_track_type track_type))
+#define __itt_track_create ITTNOTIFY_DATA(track_create)
+#define __itt_track_create_ptr ITTNOTIFY_NAME(track_create)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_track_create(track_group,name,track_type) (__itt_track*)0
+#define __itt_track_create_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_track_create_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Set the logical track.
+ */
+void ITTAPI __itt_set_track(__itt_track* track);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, set_track, (__itt_track *track))
+#define __itt_set_track ITTNOTIFY_VOID(set_track)
+#define __itt_set_track_ptr ITTNOTIFY_NAME(set_track)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_set_track(track)
+#define __itt_set_track_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_set_track_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/* ========================================================================== */
+/** @cond exclude_from_gpa_documentation */
+/**
+ * @defgroup events Events
+ * @ingroup public
+ * Events group
+ * @{
+ */
+/** @brief user event type */
+typedef int __itt_event;
+
+/**
+ * @brief Create an event notification
+ * @note name or namelen being null/name and namelen not matching, user event feature not enabled
+ * @return non-zero event identifier upon success and __itt_err otherwise
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+__itt_event LIBITTAPI __itt_event_createA(const char *name, int namelen);
+__itt_event LIBITTAPI __itt_event_createW(const wchar_t *name, int namelen);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_event_create __itt_event_createW
+# define __itt_event_create_ptr __itt_event_createW_ptr
+#else
+# define __itt_event_create __itt_event_createA
+# define __itt_event_create_ptr __itt_event_createA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+__itt_event LIBITTAPI __itt_event_create(const char *name, int namelen);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(LIBITTAPI, __itt_event, event_createA, (const char *name, int namelen))
+ITT_STUB(LIBITTAPI, __itt_event, event_createW, (const wchar_t *name, int namelen))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(LIBITTAPI, __itt_event, event_create, (const char *name, int namelen))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_event_createA ITTNOTIFY_DATA(event_createA)
+#define __itt_event_createA_ptr ITTNOTIFY_NAME(event_createA)
+#define __itt_event_createW ITTNOTIFY_DATA(event_createW)
+#define __itt_event_createW_ptr ITTNOTIFY_NAME(event_createW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_event_create ITTNOTIFY_DATA(event_create)
+#define __itt_event_create_ptr ITTNOTIFY_NAME(event_create)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_event_createA(name, namelen) (__itt_event)0
+#define __itt_event_createA_ptr 0
+#define __itt_event_createW(name, namelen) (__itt_event)0
+#define __itt_event_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_event_create(name, namelen) (__itt_event)0
+#define __itt_event_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_event_createA_ptr 0
+#define __itt_event_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_event_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Record an event occurrence.
+ * @return __itt_err upon failure (invalid event id/user event feature not enabled)
+ */
+int LIBITTAPI __itt_event_start(__itt_event event);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(LIBITTAPI, int, event_start, (__itt_event event))
+#define __itt_event_start ITTNOTIFY_DATA(event_start)
+#define __itt_event_start_ptr ITTNOTIFY_NAME(event_start)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_event_start(event) (int)0
+#define __itt_event_start_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_event_start_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Record an event end occurrence.
+ * @note It is optional if events do not have durations.
+ * @return __itt_err upon failure (invalid event id/user event feature not enabled)
+ */
+int LIBITTAPI __itt_event_end(__itt_event event);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(LIBITTAPI, int, event_end, (__itt_event event))
+#define __itt_event_end ITTNOTIFY_DATA(event_end)
+#define __itt_event_end_ptr ITTNOTIFY_NAME(event_end)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_event_end(event) (int)0
+#define __itt_event_end_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_event_end_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} events group */
+
+
+/**
+ * @defgroup arrays Arrays Visualizer
+ * @ingroup public
+ * Visualize arrays
+ * @{
+ */
+
+/**
+ * @enum __itt_av_data_type
+ * @brief Defines types of arrays data (for C/C++ intrinsic types)
+ */
+typedef enum
+{
+ __itt_e_first = 0,
+ __itt_e_char = 0, /* 1-byte integer */
+ __itt_e_uchar, /* 1-byte unsigned integer */
+ __itt_e_int16, /* 2-byte integer */
+ __itt_e_uint16, /* 2-byte unsigned integer */
+ __itt_e_int32, /* 4-byte integer */
+ __itt_e_uint32, /* 4-byte unsigned integer */
+ __itt_e_int64, /* 8-byte integer */
+ __itt_e_uint64, /* 8-byte unsigned integer */
+ __itt_e_float, /* 4-byte floating */
+ __itt_e_double, /* 8-byte floating */
+ __itt_e_last = __itt_e_double
+} __itt_av_data_type;
+
+/**
+ * @brief Save an array data to a file.
+ * Output format is defined by the file extension. The csv and bmp formats are supported (bmp - for 2-dimensional array only).
+ * @param[in] data - pointer to the array data
+ * @param[in] rank - the rank of the array
+ * @param[in] dimensions - pointer to an array of integers, which specifies the array dimensions.
+ * The size of dimensions must be equal to the rank
+ * @param[in] type - the type of the array, specified as one of the __itt_av_data_type values (for intrinsic types)
+ * @param[in] filePath - the file path; the output format is defined by the file extension
+ * @param[in] columnOrder - defines how the array is stored in the linear memory.
+ * It should be 1 for column-major order (e.g. in FORTRAN) or 0 - for row-major order (e.g. in C).
+ */
+
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+int ITTAPI __itt_av_saveA(void *data, int rank, const int *dimensions, int type, const char *filePath, int columnOrder);
+int ITTAPI __itt_av_saveW(void *data, int rank, const int *dimensions, int type, const wchar_t *filePath, int columnOrder);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_av_save __itt_av_saveW
+# define __itt_av_save_ptr __itt_av_saveW_ptr
+#else /* UNICODE */
+# define __itt_av_save __itt_av_saveA
+# define __itt_av_save_ptr __itt_av_saveA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+int ITTAPI __itt_av_save(void *data, int rank, const int *dimensions, int type, const char *filePath, int columnOrder);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, int, av_saveA, (void *data, int rank, const int *dimensions, int type, const char *filePath, int columnOrder))
+ITT_STUB(ITTAPI, int, av_saveW, (void *data, int rank, const int *dimensions, int type, const wchar_t *filePath, int columnOrder))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, int, av_save, (void *data, int rank, const int *dimensions, int type, const char *filePath, int columnOrder))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_av_saveA ITTNOTIFY_DATA(av_saveA)
+#define __itt_av_saveA_ptr ITTNOTIFY_NAME(av_saveA)
+#define __itt_av_saveW ITTNOTIFY_DATA(av_saveW)
+#define __itt_av_saveW_ptr ITTNOTIFY_NAME(av_saveW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_av_save ITTNOTIFY_DATA(av_save)
+#define __itt_av_save_ptr ITTNOTIFY_NAME(av_save)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_av_saveA(name)
+#define __itt_av_saveA_ptr 0
+#define __itt_av_saveW(name)
+#define __itt_av_saveW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_av_save(name)
+#define __itt_av_save_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_av_saveA_ptr 0
+#define __itt_av_saveW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_av_save_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+void ITTAPI __itt_enable_attach(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, enable_attach, (void))
+#define __itt_enable_attach ITTNOTIFY_VOID(enable_attach)
+#define __itt_enable_attach_ptr ITTNOTIFY_NAME(enable_attach)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_enable_attach()
+#define __itt_enable_attach_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_enable_attach_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @cond exclude_from_gpa_documentation */
+
+/** @} arrays group */
+
+/** @endcond */
+
+/**
+ * @brief Module load info
+ * This API is used to report necessary information in case of module relocation
+ * @param[in] start_addr - relocated module start address
+ * @param[in] end_addr - relocated module end address
+ * @param[in] path - file system path to the module
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+void ITTAPI __itt_module_loadA(void *start_addr, void *end_addr, const char *path);
+void ITTAPI __itt_module_loadW(void *start_addr, void *end_addr, const wchar_t *path);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_module_load __itt_module_loadW
+# define __itt_module_load_ptr __itt_module_loadW_ptr
+#else /* UNICODE */
+# define __itt_module_load __itt_module_loadA
+# define __itt_module_load_ptr __itt_module_loadA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+void ITTAPI __itt_module_load(void *start_addr, void *end_addr, const char *path);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, void, module_loadA, (void *start_addr, void *end_addr, const char *path))
+ITT_STUB(ITTAPI, void, module_loadW, (void *start_addr, void *end_addr, const wchar_t *path))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, void, module_load, (void *start_addr, void *end_addr, const char *path))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_module_loadA ITTNOTIFY_VOID(module_loadA)
+#define __itt_module_loadA_ptr ITTNOTIFY_NAME(module_loadA)
+#define __itt_module_loadW ITTNOTIFY_VOID(module_loadW)
+#define __itt_module_loadW_ptr ITTNOTIFY_NAME(module_loadW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_module_load ITTNOTIFY_VOID(module_load)
+#define __itt_module_load_ptr ITTNOTIFY_NAME(module_load)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_module_loadA(start_addr, end_addr, path)
+#define __itt_module_loadA_ptr 0
+#define __itt_module_loadW(start_addr, end_addr, path)
+#define __itt_module_loadW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_module_load(start_addr, end_addr, path)
+#define __itt_module_load_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_module_loadA_ptr 0
+#define __itt_module_loadW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_module_load_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _ITTNOTIFY_H_ */
+
+#ifdef INTEL_ITTNOTIFY_API_PRIVATE
+
+#ifndef _ITTNOTIFY_PRIVATE_
+#define _ITTNOTIFY_PRIVATE_
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ * @ingroup clockdomain
+ * @brief Begin an overlapped task instance.
+ * @param[in] domain The domain for this task
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] taskid The identifier for this task instance, *cannot* be __itt_null.
+ * @param[in] parentid The parent of this task, or __itt_null.
+ * @param[in] name The name of this task.
+ */
+void ITTAPI __itt_task_begin_overlapped_ex(const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id taskid, __itt_id parentid, __itt_string_handle* name);
+
+/**
+ * @ingroup clockdomain
+ * @brief End an overlapped task instance.
+ * @param[in] domain The domain for this task
+ * @param[in] clock_domain The clock domain controlling the execution of this call.
+ * @param[in] timestamp The user defined timestamp.
+ * @param[in] taskid Explicit ID of finished task
+ */
+void ITTAPI __itt_task_end_overlapped_ex(const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id taskid);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, task_begin_overlapped_ex, (const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id taskid, __itt_id parentid, __itt_string_handle* name))
+ITT_STUBV(ITTAPI, void, task_end_overlapped_ex, (const __itt_domain* domain, __itt_clock_domain* clock_domain, unsigned long long timestamp, __itt_id taskid))
+#define __itt_task_begin_overlapped_ex(d,x,y,z,a,b) ITTNOTIFY_VOID_D5(task_begin_overlapped_ex,d,x,y,z,a,b)
+#define __itt_task_begin_overlapped_ex_ptr ITTNOTIFY_NAME(task_begin_overlapped_ex)
+#define __itt_task_end_overlapped_ex(d,x,y,z) ITTNOTIFY_VOID_D3(task_end_overlapped_ex,d,x,y,z)
+#define __itt_task_end_overlapped_ex_ptr ITTNOTIFY_NAME(task_end_overlapped_ex)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_task_begin_overlapped_ex(domain,clock_domain,timestamp,taskid,parentid,name)
+#define __itt_task_begin_overlapped_ex_ptr 0
+#define __itt_task_end_overlapped_ex(domain,clock_domain,timestamp,taskid)
+#define __itt_task_end_overlapped_ex_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_task_begin_overlapped_ex_ptr 0
+#define __itt_task_end_overlapped_ptr 0
+#define __itt_task_end_overlapped_ex_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @defgroup makrs_internal Marks
+ * @ingroup internal
+ * Marks group
+ * @warning Internal API:
+ * - It is not shipped to outside of Intel
+ * - It is delivered to internal Intel teams using e-mail or SVN access only
+ * @{
+ */
+/** @brief user mark type */
+typedef int __itt_mark_type;
+
+/**
+ * @brief Creates a user mark type with the specified name using char or Unicode string.
+ * @param[in] name - name of mark to create
+ * @return Returns a handle to the mark type
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+__itt_mark_type ITTAPI __itt_mark_createA(const char *name);
+__itt_mark_type ITTAPI __itt_mark_createW(const wchar_t *name);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_mark_create __itt_mark_createW
+# define __itt_mark_create_ptr __itt_mark_createW_ptr
+#else /* UNICODE */
+# define __itt_mark_create __itt_mark_createA
+# define __itt_mark_create_ptr __itt_mark_createA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+__itt_mark_type ITTAPI __itt_mark_create(const char *name);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, __itt_mark_type, mark_createA, (const char *name))
+ITT_STUB(ITTAPI, __itt_mark_type, mark_createW, (const wchar_t *name))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, __itt_mark_type, mark_create, (const char *name))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_mark_createA ITTNOTIFY_DATA(mark_createA)
+#define __itt_mark_createA_ptr ITTNOTIFY_NAME(mark_createA)
+#define __itt_mark_createW ITTNOTIFY_DATA(mark_createW)
+#define __itt_mark_createW_ptr ITTNOTIFY_NAME(mark_createW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark_create ITTNOTIFY_DATA(mark_create)
+#define __itt_mark_create_ptr ITTNOTIFY_NAME(mark_create)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_mark_createA(name) (__itt_mark_type)0
+#define __itt_mark_createA_ptr 0
+#define __itt_mark_createW(name) (__itt_mark_type)0
+#define __itt_mark_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark_create(name) (__itt_mark_type)0
+#define __itt_mark_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_mark_createA_ptr 0
+#define __itt_mark_createW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark_create_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Creates a "discrete" user mark type of the specified type and an optional parameter using char or Unicode string.
+ *
+ * - The mark of "discrete" type is placed to collection results in case of success. It appears in overtime view(s) as a special tick sign.
+ * - The call is "synchronous" - function returns after mark is actually added to results.
+ * - This function is useful, for example, to mark different phases of application
+ * (beginning of the next mark automatically meand end of current region).
+ * - Can be used together with "continuous" marks (see below) at the same collection session
+ * @param[in] mt - mark, created by __itt_mark_create(const char* name) function
+ * @param[in] parameter - string parameter of mark
+ * @return Returns zero value in case of success, non-zero value otherwise.
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+int ITTAPI __itt_markA(__itt_mark_type mt, const char *parameter);
+int ITTAPI __itt_markW(__itt_mark_type mt, const wchar_t *parameter);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_mark __itt_markW
+# define __itt_mark_ptr __itt_markW_ptr
+#else /* UNICODE */
+# define __itt_mark __itt_markA
+# define __itt_mark_ptr __itt_markA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+int ITTAPI __itt_mark(__itt_mark_type mt, const char *parameter);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, int, markA, (__itt_mark_type mt, const char *parameter))
+ITT_STUB(ITTAPI, int, markW, (__itt_mark_type mt, const wchar_t *parameter))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, int, mark, (__itt_mark_type mt, const char *parameter))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_markA ITTNOTIFY_DATA(markA)
+#define __itt_markA_ptr ITTNOTIFY_NAME(markA)
+#define __itt_markW ITTNOTIFY_DATA(markW)
+#define __itt_markW_ptr ITTNOTIFY_NAME(markW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark ITTNOTIFY_DATA(mark)
+#define __itt_mark_ptr ITTNOTIFY_NAME(mark)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_markA(mt, parameter) (int)0
+#define __itt_markA_ptr 0
+#define __itt_markW(mt, parameter) (int)0
+#define __itt_markW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark(mt, parameter) (int)0
+#define __itt_mark_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_markA_ptr 0
+#define __itt_markW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Use this if necessary to create a "discrete" user event type (mark) for process
+ * rather then for one thread
+ * @see int __itt_mark(__itt_mark_type mt, const char* parameter);
+ */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+int ITTAPI __itt_mark_globalA(__itt_mark_type mt, const char *parameter);
+int ITTAPI __itt_mark_globalW(__itt_mark_type mt, const wchar_t *parameter);
+#if defined(UNICODE) || defined(_UNICODE)
+# define __itt_mark_global __itt_mark_globalW
+# define __itt_mark_global_ptr __itt_mark_globalW_ptr
+#else /* UNICODE */
+# define __itt_mark_global __itt_mark_globalA
+# define __itt_mark_global_ptr __itt_mark_globalA_ptr
+#endif /* UNICODE */
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+int ITTAPI __itt_mark_global(__itt_mark_type mt, const char *parameter);
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+ITT_STUB(ITTAPI, int, mark_globalA, (__itt_mark_type mt, const char *parameter))
+ITT_STUB(ITTAPI, int, mark_globalW, (__itt_mark_type mt, const wchar_t *parameter))
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+ITT_STUB(ITTAPI, int, mark_global, (__itt_mark_type mt, const char *parameter))
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_mark_globalA ITTNOTIFY_DATA(mark_globalA)
+#define __itt_mark_globalA_ptr ITTNOTIFY_NAME(mark_globalA)
+#define __itt_mark_globalW ITTNOTIFY_DATA(mark_globalW)
+#define __itt_mark_globalW_ptr ITTNOTIFY_NAME(mark_globalW)
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark_global ITTNOTIFY_DATA(mark_global)
+#define __itt_mark_global_ptr ITTNOTIFY_NAME(mark_global)
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#else /* INTEL_NO_ITTNOTIFY_API */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_mark_globalA(mt, parameter) (int)0
+#define __itt_mark_globalA_ptr 0
+#define __itt_mark_globalW(mt, parameter) (int)0
+#define __itt_mark_globalW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark_global(mt, parameter) (int)0
+#define __itt_mark_global_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#if ITT_PLATFORM==ITT_PLATFORM_WIN
+#define __itt_mark_globalA_ptr 0
+#define __itt_mark_globalW_ptr 0
+#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#define __itt_mark_global_ptr 0
+#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Creates an "end" point for "continuous" mark with specified name.
+ *
+ * - Returns zero value in case of success, non-zero value otherwise.
+ * Also returns non-zero value when preceding "begin" point for the
+ * mark with the same name failed to be created or not created.
+ * - The mark of "continuous" type is placed to collection results in
+ * case of success. It appears in overtime view(s) as a special tick
+ * sign (different from "discrete" mark) together with line from
+ * corresponding "begin" mark to "end" mark.
+ * @note Continuous marks can overlap and be nested inside each other.
+ * Discrete mark can be nested inside marked region
+ * @param[in] mt - mark, created by __itt_mark_create(const char* name) function
+ * @return Returns zero value in case of success, non-zero value otherwise.
+ */
+int ITTAPI __itt_mark_off(__itt_mark_type mt);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(ITTAPI, int, mark_off, (__itt_mark_type mt))
+#define __itt_mark_off ITTNOTIFY_DATA(mark_off)
+#define __itt_mark_off_ptr ITTNOTIFY_NAME(mark_off)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_mark_off(mt) (int)0
+#define __itt_mark_off_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_mark_off_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Use this if necessary to create an "end" point for mark of process
+ * @see int __itt_mark_off(__itt_mark_type mt);
+ */
+int ITTAPI __itt_mark_global_off(__itt_mark_type mt);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(ITTAPI, int, mark_global_off, (__itt_mark_type mt))
+#define __itt_mark_global_off ITTNOTIFY_DATA(mark_global_off)
+#define __itt_mark_global_off_ptr ITTNOTIFY_NAME(mark_global_off)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_mark_global_off(mt) (int)0
+#define __itt_mark_global_off_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_mark_global_off_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+/** @} marks group */
+
+/**
+ * @defgroup counters_internal Counters
+ * @ingroup internal
+ * Counters group
+ * @{
+ */
+
+
+/**
+ * @defgroup stitch Stack Stitching
+ * @ingroup internal
+ * Stack Stitching group
+ * @{
+ */
+/**
+ * @brief opaque structure for counter identification
+ */
+typedef struct ___itt_caller *__itt_caller;
+
+/**
+ * @brief Create the stitch point e.g. a point in call stack where other stacks should be stitched to.
+ * The function returns a unique identifier which is used to match the cut points with corresponding stitch points.
+ */
+__itt_caller ITTAPI __itt_stack_caller_create(void);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUB(ITTAPI, __itt_caller, stack_caller_create, (void))
+#define __itt_stack_caller_create ITTNOTIFY_DATA(stack_caller_create)
+#define __itt_stack_caller_create_ptr ITTNOTIFY_NAME(stack_caller_create)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_stack_caller_create() (__itt_caller)0
+#define __itt_stack_caller_create_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_stack_caller_create_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Destroy the inforamtion about stitch point identified by the pointer previously returned by __itt_stack_caller_create()
+ */
+void ITTAPI __itt_stack_caller_destroy(__itt_caller id);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, stack_caller_destroy, (__itt_caller id))
+#define __itt_stack_caller_destroy ITTNOTIFY_VOID(stack_caller_destroy)
+#define __itt_stack_caller_destroy_ptr ITTNOTIFY_NAME(stack_caller_destroy)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_stack_caller_destroy(id)
+#define __itt_stack_caller_destroy_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_stack_caller_destroy_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief Sets the cut point. Stack from each event which occurs after this call will be cut
+ * at the same stack level the function was called and stitched to the corresponding stitch point.
+ */
+void ITTAPI __itt_stack_callee_enter(__itt_caller id);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, stack_callee_enter, (__itt_caller id))
+#define __itt_stack_callee_enter ITTNOTIFY_VOID(stack_callee_enter)
+#define __itt_stack_callee_enter_ptr ITTNOTIFY_NAME(stack_callee_enter)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_stack_callee_enter(id)
+#define __itt_stack_callee_enter_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_stack_callee_enter_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/**
+ * @brief This function eliminates the cut point which was set by latest __itt_stack_callee_enter().
+ */
+void ITTAPI __itt_stack_callee_leave(__itt_caller id);
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+ITT_STUBV(ITTAPI, void, stack_callee_leave, (__itt_caller id))
+#define __itt_stack_callee_leave ITTNOTIFY_VOID(stack_callee_leave)
+#define __itt_stack_callee_leave_ptr ITTNOTIFY_NAME(stack_callee_leave)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_stack_callee_leave(id)
+#define __itt_stack_callee_leave_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_stack_callee_leave_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+/** @} stitch group */
+
+/* ***************************************************************************************************************************** */
+
+#include <stdarg.h>
+
+/** @cond exclude_from_documentation */
+typedef enum __itt_error_code
+{
+ __itt_error_success = 0, /*!< no error */
+ __itt_error_no_module = 1, /*!< module can't be loaded */
+ /* %1$s -- library name; win: %2$d -- system error code; unx: %2$s -- system error message. */
+ __itt_error_no_symbol = 2, /*!< symbol not found */
+ /* %1$s -- library name, %2$s -- symbol name. */
+ __itt_error_unknown_group = 3, /*!< unknown group specified */
+ /* %1$s -- env var name, %2$s -- group name. */
+ __itt_error_cant_read_env = 4, /*!< GetEnvironmentVariable() failed */
+ /* %1$s -- env var name, %2$d -- system error. */
+ __itt_error_env_too_long = 5, /*!< variable value too long */
+ /* %1$s -- env var name, %2$d -- actual length of the var, %3$d -- max allowed length. */
+ __itt_error_system = 6 /*!< pthread_mutexattr_init or pthread_mutex_init failed */
+ /* %1$s -- function name, %2$d -- errno. */
+} __itt_error_code;
+
+typedef void (__itt_error_handler_t)(__itt_error_code code, va_list);
+__itt_error_handler_t* __itt_set_error_handler(__itt_error_handler_t*);
+
+const char* ITTAPI __itt_api_version(void);
+/** @endcond */
+
+/** @cond exclude_from_documentation */
+#ifndef INTEL_NO_MACRO_BODY
+#ifndef INTEL_NO_ITTNOTIFY_API
+#define __itt_error_handler ITT_JOIN(INTEL_ITTNOTIFY_PREFIX, error_handler)
+void __itt_error_handler(__itt_error_code code, va_list args);
+extern const int ITTNOTIFY_NAME(err);
+#define __itt_err ITTNOTIFY_NAME(err)
+ITT_STUB(ITTAPI, const char*, api_version, (void))
+#define __itt_api_version ITTNOTIFY_DATA(api_version)
+#define __itt_api_version_ptr ITTNOTIFY_NAME(api_version)
+#else /* INTEL_NO_ITTNOTIFY_API */
+#define __itt_api_version() (const char*)0
+#define __itt_api_version_ptr 0
+#endif /* INTEL_NO_ITTNOTIFY_API */
+#else /* INTEL_NO_MACRO_BODY */
+#define __itt_api_version_ptr 0
+#endif /* INTEL_NO_MACRO_BODY */
+/** @endcond */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _ITTNOTIFY_PRIVATE_ */
+
+#endif /* INTEL_ITTNOTIFY_API_PRIVATE */