diff options
Diffstat (limited to 'mozglue/build')
| -rw-r--r-- | mozglue/build/AsanOptions.cpp | 197 | ||||
| -rw-r--r-- | mozglue/build/BionicGlue.cpp | 37 | ||||
| -rw-r--r-- | mozglue/build/Makefile.in | 15 | ||||
| -rw-r--r-- | mozglue/build/TsanOptions.cpp | 314 | ||||
| -rw-r--r-- | mozglue/build/UbsanOptions.cpp | 16 | ||||
| -rw-r--r-- | mozglue/build/arm-eabi-filter | 4 | ||||
| -rw-r--r-- | mozglue/build/arm.cpp | 131 | ||||
| -rw-r--r-- | mozglue/build/arm.h | 145 | ||||
| -rw-r--r-- | mozglue/build/dummy.cpp | 5 | ||||
| -rw-r--r-- | mozglue/build/mips.cpp | 42 | ||||
| -rw-r--r-- | mozglue/build/mips.h | 29 | ||||
| -rw-r--r-- | mozglue/build/moz.build | 115 | ||||
| -rw-r--r-- | mozglue/build/mozglue.def | 22 | ||||
| -rw-r--r-- | mozglue/build/mozglue.dll.manifest | 9 | ||||
| -rw-r--r-- | mozglue/build/mozglue.ver | 4 | ||||
| -rw-r--r-- | mozglue/build/ppc.cpp | 64 | ||||
| -rw-r--r-- | mozglue/build/ppc.h | 47 | ||||
| -rw-r--r-- | mozglue/build/replace_malloc.mozbuild | 6 |
18 files changed, 1202 insertions, 0 deletions
diff --git a/mozglue/build/AsanOptions.cpp b/mozglue/build/AsanOptions.cpp new file mode 100644 index 0000000000..a96e6bd840 --- /dev/null +++ b/mozglue/build/AsanOptions.cpp @@ -0,0 +1,197 @@ +/* -*- 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 "mozilla/Attributes.h" + +#ifndef _MSC_VER // Not supported by clang-cl yet + +// When running with AddressSanitizer, we need to explicitly set some +// options specific to our codebase to prevent errors during runtime. +// To override these, set the ASAN_OPTIONS environment variable. +// +// Currently, these are: +// +// allow_user_segv_handler=1 - Tell ASan to allow our code to use its +// own SIGSEGV handlers. This is required by ASM.js internally. +// +// alloc_dealloc_mismatch=0 - Disable alloc-dealloc mismatch checking +// in ASan. This is required because we define our own new/delete +// operators that are backed by malloc/free. If one of them gets inlined +// while the other doesn't, ASan will report false positives. +// +// detect_leaks=0 - Disable LeakSanitizer. This is required because +// otherwise leak checking will be enabled for various building and +// testing executables where we don't care much about leaks. +// +// allocator_may_return_null=1 - Tell ASan to return NULL when an allocation +// fails instead of aborting the program. This allows us to handle failing +// allocations the same way we would handle them with a regular allocator and +// also uncovers potential bugs that might occur in these situations. +// +// max_malloc_fill_size - Tell ASan to initialize memory to a certain value +// when it is allocated. This option specifies the maximum allocation size +// for which ASan should still initialize the memory. The value we specify +// here is exactly 256MiB. +// +// max_free_fill_size - Similar to max_malloc_fill_size, tell ASan to +// overwrite memory with a certain value when it is freed. Again, the value +// here specifies the maximum allocation size, larger allocations will +// skipped. +// +// malloc_fill_byte / free_fill_byte - These values specify the byte values +// used to initialize/overwrite memory in conjunction with the previous +// options max_malloc_fill_size and max_free_fill_size. The values used here +// are 0xe4 and 0xe5 to match the kAllocPoison and kAllocJunk constants used +// by mozjemalloc. +// +// malloc_context_size - This value specifies how many stack frames are +// stored for each malloc and free call. Since Firefox can have lots of deep +// stacks with allocations, we limit the default size here further to save +// some memory. +// +// fast_unwind_on_check - Use the fast (frame-pointer-based) stack unwinder +// for internal CHECK failures. The slow unwinder doesn't work on Android. +// +// fast_unwind_on_fatal - Use the fast (frame-pointer-based) stack unwinder +// to print fatal error reports. The slow unwinder doesn't work on Android. +// +// detect_stack_use_after_return=0 - Work around bug 1768099. +// +// intercept_tls_get_addr=0 - Work around +// https://github.com/google/sanitizers/issues/1322 (bug 1635327). +// +// !! Note: __asan_default_options is not used on Android! (bug 1576213) +// These should be updated in: +// mobile/android/geckoview/src/asan/resources/lib/*/wrap.sh +// +extern "C" MOZ_ASAN_IGNORE const char* __asan_default_options() { + return "allow_user_segv_handler=1:alloc_dealloc_mismatch=0:detect_leaks=0" +# ifdef MOZ_ASAN_REPORTER + ":malloc_context_size=20" +# endif +# ifdef __ANDROID__ + ":fast_unwind_on_check=1:fast_unwind_on_fatal=1" +# endif + ":max_free_fill_size=268435456:max_malloc_fill_size=268435456" + ":malloc_fill_byte=228:free_fill_byte=229" + ":handle_sigill=1" + ":allocator_may_return_null=1" + ":detect_stack_use_after_return=0" + ":intercept_tls_get_addr=0"; +} + +// !!! Please do not add suppressions for new leaks in Gecko code, unless they +// are intentional !!! +extern "C" const char* __lsan_default_suppressions() { + return "# Add your suppressions below\n" + + // LSan runs with a shallow stack depth and no debug symbols, so some + // small intentional leaks in system libraries show up with this. You + // do not want this enabled when running locally with a deep stack, as + // it can catch too much. + "leak:libc.so\n" + + // nsComponentManagerImpl intentionally leaks factory entries, and + // probably some other stuff. + "leak:nsComponentManagerImpl\n" + + // Bug 981220 - Pixman fails to free TLS memory. + "leak:pixman_implementation_lookup_composite\n" + + // Bug 987918 - Font shutdown leaks when CLEANUP_MEMORY is not enabled. + "leak:libfontconfig.so\n" + "leak:libfreetype.so\n" + "leak:GI___strdup\n" + // The symbol is really __GI___strdup, but if you have the leading _, + // it doesn't suppress it. + + // xdg_mime_init() is leaked by Gtk3 library + "leak:xdg_mime_init\n" + + // Bug 1078015 - If the process terminates during a PR_Sleep, LSAN + // detects a leak + "leak:PR_Sleep\n" + + // Bug 1363976 - Stylo holds some global data alive forever. + "leak:style::global_style_data\n" + "leak:style::sharing::SHARING_CACHE_KEY\n" + "leak:style::bloom::BLOOM_KEY\n" + + // + // Many leaks only affect some test suites. The suite annotations are + // not checked. + // + + // Bug 979928 - WebRTC leaks in different mochitest suites. + "leak:NR_reg_init\n" + // nr_reg_local_init should be redundant with NR_reg_init, but on + // Aurora we get fewer stack frames for some reason. + "leak:nr_reg_local_init\n" + "leak:r_log_register\n" + "leak:nr_reg_set\n" + + // This is a one-time leak in mochitest-bc, so it is probably okay to + // ignore. + "leak:GlobalPrinters::InitializeGlobalPrinters\n" + "leak:nsPSPrinterList::GetPrinterList\n" + + // Bug 1028456 - Various NSPR fd-related leaks in different mochitest + // suites. + "leak:_PR_Getfd\n" + + // Bug 1028483 - The XML parser sometimes leaks an object. Mostly + // happens in toolkit/components/thumbnails. + "leak:processInternalEntity\n" + + // Bug 1187421 - NSS does not always free the error stack in different + // mochitest suites. + "leak:nss_ClearErrorStack\n" + + // Bug 1602689 - leak at mozilla::NotNull, RacyRegisteredThread, + // RegisteredThread::RegisteredThread, mozilla::detail::UniqueSelector + "leak:RegisteredThread::RegisteredThread\n" + + // + // Leaks with system libraries in their stacks. These show up across a + // number of tests. Better symbols and disabling fast stackwalking may + // help diagnose these. + // + "leak:libcairo.so\n" + // https://github.com/OpenPrinting/cups/pull/317 + "leak:libcups.so\n" + "leak:libdl.so\n" + "leak:libdricore.so\n" + "leak:libdricore9.2.1.so\n" + "leak:libGL.so\n" + "leak:libEGL_mesa.so\n" + "leak:libglib-2.0.so\n" + "leak:libglsl.so\n" + "leak:libp11-kit.so\n" + "leak:libpixman-1.so\n" + "leak:libpulse.so\n" + // lubpulsecommon 1.1 is Ubuntu 12.04 + "leak:libpulsecommon-1.1.so\n" + // lubpulsecommon 1.1 is Ubuntu 16.04 + "leak:libpulsecommon-8.0.so\n" + "leak:libresolv.so\n" + "leak:libstdc++.so\n" + "leak:libXrandr.so\n" + "leak:libX11.so\n" + "leak:pthread_setspecific_internal\n" + "leak:swrast_dri.so\n" + + "leak:js::frontend::BytecodeEmitter:\n" + "leak:js::frontend::GeneralParser\n" + "leak:js::frontend::Parse\n" + "leak:xpc::CIGSHelper\n" + "leak:mozJSModuleLoader\n" + "leak:mozilla::xpcom::ConstructJSMComponent\n" + "leak:XPCWrappedNativeJSOps\n" + + // End of suppressions. + ; // Please keep this semicolon. +} + +#endif // _MSC_VER diff --git a/mozglue/build/BionicGlue.cpp b/mozglue/build/BionicGlue.cpp new file mode 100644 index 0000000000..8cc21b54e5 --- /dev/null +++ b/mozglue/build/BionicGlue.cpp @@ -0,0 +1,37 @@ +/* -*- 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 <sys/types.h> +#include <unistd.h> +#include <sys/syscall.h> + +#define NS_EXPORT __attribute__((visibility("default"))) + +extern "C" NS_EXPORT int raise(int sig) { + // Bug 741272: Bionic incorrectly uses kill(), which signals the + // process, and thus could signal another thread (and let this one + // return "successfully" from raising a fatal signal). + // + // Bug 943170: POSIX specifies pthread_kill(pthread_self(), sig) as + // equivalent to raise(sig), but Bionic also has a bug with these + // functions, where a forked child will kill its parent instead. + + extern pid_t gettid(void); + return syscall(__NR_tgkill, getpid(), gettid(), sig); +} + +/* Flash plugin uses symbols that are not present in Android >= 4.4 */ +namespace android { +namespace VectorImpl { +NS_EXPORT void reservedVectorImpl1(void) {} +NS_EXPORT void reservedVectorImpl2(void) {} +NS_EXPORT void reservedVectorImpl3(void) {} +NS_EXPORT void reservedVectorImpl4(void) {} +NS_EXPORT void reservedVectorImpl5(void) {} +NS_EXPORT void reservedVectorImpl6(void) {} +NS_EXPORT void reservedVectorImpl7(void) {} +NS_EXPORT void reservedVectorImpl8(void) {} +} // namespace VectorImpl +} // namespace android diff --git a/mozglue/build/Makefile.in b/mozglue/build/Makefile.in new file mode 100644 index 0000000000..558ceba066 --- /dev/null +++ b/mozglue/build/Makefile.in @@ -0,0 +1,15 @@ +# +# 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/. + +# For FORCE_SHARED_LIB +include $(topsrcdir)/config/config.mk + +ifeq (WINNT,$(OS_TARGET)) +# Rebuild mozglue.dll if the manifest changes - it's included by mozglue.rc. +# (this dependency should really be just for mozglue.dll, not other targets) +# Note the manifest file exists in the tree, so we use the explicit filename +# here. +EXTRA_DEPS += $(srcdir)/mozglue.dll.manifest +endif diff --git a/mozglue/build/TsanOptions.cpp b/mozglue/build/TsanOptions.cpp new file mode 100644 index 0000000000..eab90d4351 --- /dev/null +++ b/mozglue/build/TsanOptions.cpp @@ -0,0 +1,314 @@ +/* -*- 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 "mozilla/Attributes.h" +#include "mozilla/TsanOptions.h" + +#ifndef _MSC_VER // Not supported by clang-cl yet + +// +// When running with ThreadSanitizer, we sometimes need to suppress existing +// races. However, in any case, it should be either because +// +// 1) a bug is on file. In this case, the bug number should always be +// included with the suppression. +// +// or 2) this is an intentional race. Please be very careful with judging +// races as intentional and benign. Races in C++ are undefined behavior +// and compilers increasingly rely on exploiting this for optimizations. +// Hence, many seemingly benign races cause harmful or unexpected +// side-effects. +// +// See also: +// https://software.intel.com/en-us/blogs/2013/01/06/benign-data-races-what-could-possibly-go-wrong +// +// +// Also, when adding any race suppressions here, make sure to always add +// a signature for each of the two race stacks. Sometimes, TSan fails to +// symbolize one of the two traces and this can cause suppressed races to +// show up intermittently. +// +// clang-format off +extern "C" const char* __tsan_default_suppressions() { + return "# Add your suppressions below\n" + + // External uninstrumented libraries + MOZ_TSAN_DEFAULT_EXTLIB_SUPPRESSIONS + + // TSan internals + "race:__tsan::ProcessPendingSignals\n" + "race:__tsan::CallUserSignalHandler\n" + + + + + + // Uninstrumented code causing false positives + + // These libraries are uninstrumented and cause mutex false positives. + // However, they can be unloaded by GTK early which we cannot avoid. + "mutex:libGL.so\n" + "mutex:libGLdispatch\n" + "mutex:libGLX\n" + // Bug 1637707 - permanent + "mutex:libEGL_mesa.so\n" + // ~GLContextGLX unlocks a libGL mutex. + "mutex:GLContextGLX::~GLContextGLX\n" + // Bug 1825171 + "mutex:libffi.so\n" + "mutex:wl_registry_destroy\n" + // Bug 1651446 - permanent (ffmpeg) + "race:libavcodec.so*\n" + "race:libavutil.so*\n" + // For some reason, the suppressions on libpulse.so + // through `called_from_lib` only work partially. + "race:libpulse.so\n" + "race:pa_context_suspend_source_by_index\n" + "race:pa_context_unref\n" + "race:pa_format_info_set_prop_string_array\n" + "race:pa_stream_get_index\n" + "race:pa_stream_update_timing_info\n" + // This is a callback from libglib-2 that is apparently + // not fully suppressed through `called_from_lib`. + "race:g_main_context_dispatch\n" + // This is likely a false positive involving a mutex from GTK. + // See also bug 1642653 - permanent. + "mutex:GetMaiAtkType\n" + // Bug 1688716 - Failure due to fire_glxtest_process + // calling into uninstrumented external graphics driver code. + // For example: iris_dri.so and swrast_dri.so. + "race:fire_glxtest_process\n" + // Bug 1722721 - WebRender using uninstrumented Mesa drivers + "race:swrast_dri.so\n" + // Bug 1825171 + "race:libffi.so\n" + "race:mozilla::widget::WaylandBuffer::BufferReleaseCallbackHandler\n" + + + + + // Deadlock reports on single-threaded runtime. + // + // This is a known false positive from TSan where it reports + // a potential deadlock even though all mutexes are only + // taken by a single thread. For applications/tasks where we + // are absolutely sure that no second thread will be involved + // we should suppress these issues. + // + // See also https://github.com/google/sanitizers/issues/488 + + // Bug 1614605 - permanent + "deadlock:SanctionsTestServer\n" + "deadlock:OCSPStaplingServer\n" + // Bug 1643087 - permanent + "deadlock:BadCertAndPinningServer\n" + // Bug 1606804 - permanent + "deadlock:cert_storage::SecurityState::open_db\n" + "deadlock:cert_storage::SecurityState::add_certs\n" + // Bug 1651770 - permanent + "deadlock:mozilla::camera::LockAndDispatch\n" + // Bug 1606804 - permanent + "deadlock:third_party/rust/rkv/src/env.rs\n" + // Bug 1680655 - permanent + "deadlock:EncryptedClientHelloServer\n" + // Bug 1682861 - permanent + "deadlock:nsDOMWindowUtils::CompareCanvases\n" + + + + + + // Benign races in third-party code (should be fixed upstream) + + // No Bug - permanent + // No Upstream Bug Filed! + // + // SIMD Initialization in libjpeg, potentially runs + // initialization twice, but otherwise benign. Init + // routine itself is in native assembler. + "race:init_simd\n" + "race:simd_support\n" + "race:jsimd_can_ycc_rgb\n" + // Bug 1615228 - permanent + // No Upstream Bug Filed! + // + // Likely benign race in ipc/chromium/ where we set + // `message_loop_` to `NULL` on two threads when stopping + // a thread at the same time it is already finishing. + "race:base::Thread::Stop\n" + // Bug 1615569 - permanent + // No Upstream Bug Filed! + // + // NSS is using freebl from two different threads but freebl isn't + // that threadsafe. + "race:mp_exptmod.max_window_bits\n" + // Bug 1652499 - permanent + // No Upstream Bug Filed! + // + // Likely benign race in webrtc.org code - race while updating the + // minimum log severity. + "race:Loggable\n" + "race:UpdateMinLogSeverity\n" + // Bug 1652174 - permanent + // Upstream Bug: https://github.com/libevent/libevent/issues/777 + // + // Likely benign write-write race in libevent to set a sticky boolean + // flag to true. + "race:event_debug_mode_too_late\n" + + // Bug 1653618 - permanent + // Upstream Bug: https://github.com/sctplab/usrsctp/issues/507 + // + // Might lead to scheduled timers in libusrsctp getting dropped? + "race:sctp_handle_tick\n" + "race:sctp_handle_sack\n" + // Bug 1648604 - permanent + // Upstream Bug: https://github.com/sctplab/usrsctp/issues/482 + // + // Likely benign race in libusrsctp allocator during a free. + "race:system_base_info\n" + // Benign lock-order-inversion in libusrsctp + // No upstream bug filed! + "deadlock:sctp_add_to_readq\n" + + // Bug 1153409 - permanent + // No Upstream Bug Filed! + // + // Probably benign - sqlite has a few optimizations where it does + // racy reads and then does properly synchronized integrity checks + // afterwards. Some concern of compiler optimizations messing this + // up due to "volatile" being too weak for this. + "race:third_party/sqlite3/*\n" + "deadlock:third_party/sqlite3/*\n" + // Bug 1674770 - permanent + // Upstream Bug: https://github.com/Amanieu/parking_lot/issues/257 + // + // parking_lot using incorrect atomic orderings in RwLock, upstream + // fix already up for review. + "race:StrongRuleNode::ensure_child\n" + // No Bug - permanent + // Upstream Bugs: + // + // * https://github.com/rayon-rs/rayon/issues/812 + // * https://github.com/crossbeam-rs/crossbeam/issues/589 + // + // Probably a false-positive from crossbeam's deque not being + // understood by tsan. + "race:crossbeam_deque*::resize\n" + "race:crossbeam_deque*::push\n" + "race:crossbeam_deque*::write\n" + "race:crossbeam_deque*::read\n" + "race:crossbeam_deque*::steal\n" + // Bug 1805819 - permanent + // No Upstream Bug Filed! + // + // False positive in libc's tzset_internal + // See https://crbug.com/379738 also + "race:tzset_internal\n" + + + + + + // The rest of these suppressions are miscellaneous issues in gecko + // that should be investigated and ideally fixed. + + // Bug 1671574 - Permanent + // The StartupCache thread intentionally races with the main thread to + // trigger OS-level paging. It is never joined with the main thread. + "thread:StartupCache\n" + + // Bug 1734262 - Permanent + // When spawning async processes, we create a helper thread to wait for + // the process to terminate in order to asynchronously report the exit + // code to Gecko. This thread waits on a syscall for the process to end, + // which means there's no easy way to cancel and join it during Gecko + // shutdown. Suppress thread leak reports for this thread. + "thread:CreateMonitorThread\n" + + // Bug 1601600 + "race:SkARGB32_Blitter\n" + "race:SkARGB32_Shader_Blitter\n" + "race:SkARGB32_Opaque_Blitter\n" + "race:SkRasterPipelineBlitter\n" + "race:Clamp_S32_D32_nofilter_trans_shaderproc\n" + "race:SkSpriteBlitter_Memcpy\n" + + // Bug 1606800 + "race:CallInitFunc\n" + + // Bug 1606803 + "race:ipv6_is_present\n" + + // Bug 1615123 + "race:_dl_deallocate_tls\n" + "race:__libc_memalign\n" + + // Bug 1664803 + "race:Sampler::sSigHandlerCoordinator\n" + + // Bug 1656068 + "race:WebRtcAec_Create\n" + + // No Bug - Logging bug in Mochitests + "race:mochitest/ssltunnel/ssltunnel.cpp\n" + + // This thread does not seem to be stopped/joined. + // ImageBridgeChild should be turned back into a background + // task queue in bug 1647628, in which case these suppressions + // can be removed. + "race:mozilla::layers::ImageBridgeChild::ShutDown\n" + + // Bug 1652530 + "mutex:XErrorTrap\n" + + // Bug 1671601 + "race:CamerasParent::ActorDestroy\n" + "race:CamerasParent::DispatchToVideoCaptureThread\n" + + // Bug 1623541 + "race:VRShMem::PullSystemState\n" + "race:VRShMem::PushSystemState\n" + "race:VRShMem::PullBrowserState\n" + "race:VRShMem::PushBrowserState\n" + + // Bug 1682951 + "race:storage::Connection::Release\n" + + // Bug 1683357 + "race:image::ImageSurfaceCache::SuggestedSizeInternal\n" + "race:image::RasterImage::SetMetadata\n" + "race:image::RasterImage::GetWidth\n" + + // Bug 1722721 - This is a benign race creating worker/SW compositor threads. + "race:webrender::profiler::register_thread\n" + + // Bug 1722721 - This is a false positive during SW-WR rendering. + "race:scale_blit\n" + + "race:mozilla::gl::MesaMemoryLeakWorkaround\n" + + // Bug 1733908 + "race:js::wasm::Code::bestTier\n" + "race:js::wasm::Code::commitTier2\n" + "race:js::wasm::Code::setTier2\n" + "race:js::wasm::Code::setAndBorrowTier2\n" + + // Bug 1755449 + // The Glean init thread is used to perform I/O and other blocking operations. + // It is never joined with the main thread, but this is being re-evaluated. + "thread:glean::initialize\n" + + // Bug 1822605 - permanent + // A race exists in libvulkan_lvp.so. This was previously addressed in bug + // 1816713. However, libvulkan_lvp.so is unloaded so a called_from_lib + // suppression cannot be used. + "race:libvulkan_lvp.so\n" + + // End of suppressions. + ; // Please keep this semicolon. +} +// clang-format on +#endif // _MSC_VER diff --git a/mozglue/build/UbsanOptions.cpp b/mozglue/build/UbsanOptions.cpp new file mode 100644 index 0000000000..547baa790c --- /dev/null +++ b/mozglue/build/UbsanOptions.cpp @@ -0,0 +1,16 @@ +/* -*- 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 "mozilla/Attributes.h" + +#ifndef _MSC_VER // Not supported by clang-cl yet + +extern "C" const char* __ubsan_default_options() { + return "print_stacktrace=1"; +} + +extern "C" const char* __ubsan_default_suppressions() { return ""; } + +#endif diff --git a/mozglue/build/arm-eabi-filter b/mozglue/build/arm-eabi-filter new file mode 100644 index 0000000000..401454ee88 --- /dev/null +++ b/mozglue/build/arm-eabi-filter @@ -0,0 +1,4 @@ +{ + local: + __aeabi*; +}; diff --git a/mozglue/build/arm.cpp b/mozglue/build/arm.cpp new file mode 100644 index 0000000000..a74a41f6c0 --- /dev/null +++ b/mozglue/build/arm.cpp @@ -0,0 +1,131 @@ +/* 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/. */ + +/* compile-time and runtime tests for whether to use various ARM extensions */ + +#include "arm.h" + +#if defined(MOZILLA_ARM_HAVE_CPUID_DETECTION) + +// arm.h has parallel #ifs which declare MOZILLA_ARM_HAVE_CPUID_DETECTION. +// We don't check it here so that we get compile errors if it's defined, but +// we don't compile one of these detection methods. The detection code here is +// based on the CPU detection in libtheora. + +# if defined(__linux__) || defined(ANDROID) +# include <stdio.h> +# include <stdlib.h> +# include <string.h> + +enum { + MOZILLA_HAS_EDSP_FLAG = 1, + MOZILLA_HAS_ARMV6_FLAG = 2, + MOZILLA_HAS_ARMV7_FLAG = 4, + MOZILLA_HAS_NEON_FLAG = 8 +}; + +static unsigned get_arm_cpu_flags(void) { + unsigned flags; + FILE* fin; + bool armv6_processor = false; + flags = 0; + /*Reading /proc/self/auxv would be easier, but that doesn't work reliably on + Android. This also means that detection will fail in Scratchbox, which is + desirable, as NEON does not work in the qemu shipped with the Maemo 5 SDK. + I don't know if /proc/self/auxv would do any better in that case, anyway, + or if it would return random flags from the host CPU.*/ + fin = fopen("/proc/cpuinfo", "r"); + if (fin != nullptr) { + /*512 should be enough for anybody (it's even enough for all the flags that + x86 has accumulated... so far).*/ + char buf[512]; + while (fgets(buf, 511, fin) != nullptr) { + if (memcmp(buf, "Features", 8) == 0) { + char* p; + p = strstr(buf, " edsp"); + if (p != nullptr && (p[5] == ' ' || p[5] == '\n')) + flags |= MOZILLA_HAS_EDSP_FLAG; + p = strstr(buf, " neon"); + if (p != nullptr && (p[5] == ' ' || p[5] == '\n')) + flags |= MOZILLA_HAS_NEON_FLAG; + } + if (memcmp(buf, "CPU architecture:", 17) == 0) { + int version; + version = atoi(buf + 17); + if (version >= 6) flags |= MOZILLA_HAS_ARMV6_FLAG; + if (version >= 7) flags |= MOZILLA_HAS_ARMV7_FLAG; + } + /* media/webrtc/trunk/src/system_wrappers/source/cpu_features_arm.c + * Unfortunately, it seems that certain ARMv6-based CPUs + * report an incorrect architecture number of 7! + * + * We try to correct this by looking at the 'elf_format' + * field reported by the 'Processor' field, which is of the + * form of "(v7l)" for an ARMv7-based CPU, and "(v6l)" for + * an ARMv6-one. + */ + if (memcmp(buf, "Processor\t:", 11) == 0) { + if (strstr(buf, "(v6l)") != 0) { + armv6_processor = true; + } + } + } + fclose(fin); + } + if (armv6_processor) { + // ARMv6 pretending to be ARMv7? clear flag + if (flags & MOZILLA_HAS_ARMV7_FLAG) { + flags &= ~MOZILLA_HAS_ARMV7_FLAG; + } + } + return flags; +} + +// Cache a local copy so we only have to read /proc/cpuinfo once. +static unsigned arm_cpu_flags = get_arm_cpu_flags(); + +# if !defined(MOZILLA_PRESUME_EDSP) +static bool check_edsp(void) { + return (arm_cpu_flags & MOZILLA_HAS_EDSP_FLAG) != 0; +} +# endif + +# if !defined(MOZILLA_PRESUME_ARMV6) +static bool check_armv6(void) { + return (arm_cpu_flags & MOZILLA_HAS_ARMV6_FLAG) != 0; +} +# endif + +# if !defined(MOZILLA_PRESUME_ARMV7) +static bool check_armv7(void) { + return (arm_cpu_flags & MOZILLA_HAS_ARMV7_FLAG) != 0; +} +# endif + +# if !defined(MOZILLA_PRESUME_NEON) +static bool check_neon(void) { + return (arm_cpu_flags & MOZILLA_HAS_NEON_FLAG) != 0; +} +# endif + +# endif // defined(__linux__) || defined(ANDROID) + +namespace mozilla { +namespace arm_private { +# if !defined(MOZILLA_PRESUME_EDSP) +bool edsp_enabled = check_edsp(); +# endif +# if !defined(MOZILLA_PRESUME_ARMV6) +bool armv6_enabled = check_armv6(); +# endif +# if !defined(MOZILLA_PRESUME_ARMV7) +bool armv7_enabled = check_armv7(); +# endif +# if !defined(MOZILLA_PRESUME_NEON) +bool neon_enabled = check_neon(); +# endif +} // namespace arm_private +} // namespace mozilla + +#endif // MOZILLA_ARM_HAVE_CPUID_DETECTION diff --git a/mozglue/build/arm.h b/mozglue/build/arm.h new file mode 100644 index 0000000000..8600329931 --- /dev/null +++ b/mozglue/build/arm.h @@ -0,0 +1,145 @@ +/* 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/. */ + +/* compile-time and runtime tests for whether to use SSE instructions */ + +#ifndef mozilla_arm_h_ +#define mozilla_arm_h_ + +// for definition of MFBT_DATA +#include "mozilla/Types.h" + +/* This is patterned after SSE.h, but provides ARMv5E, ARMv6, and NEON + detection. For reasons similar to the SSE code, code using NEON (even just + in inline asm) needs to be in a separate compilation unit from the regular + code, because it requires an ".fpu neon" directive which can't be undone. + ARMv5E and ARMv6 code may also require an .arch directive, since by default + the assembler refuses to generate code for opcodes outside of its current + .arch setting. + + TODO: Add Thumb, Thumb2, VFP, iwMMX, etc. detection, if we need it. */ + +#if defined(__GNUC__) && defined(__arm__) + +# define MOZILLA_ARM_ARCH 3 + +# if defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__) || \ + defined(_ARM_ARCH_4) +# undef MOZILLA_ARM_ARCH +# define MOZILLA_ARM_ARCH 4 +# endif + +# if defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) || \ + defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \ + defined(__ARM_ARCH_5TEJ__) || defined(_ARM_ARCH_5) +# undef MOZILLA_ARM_ARCH +# define MOZILLA_ARM_ARCH 5 +# endif + +# if defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \ + defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) || \ + defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) || \ + defined(__ARM_ARCH_6M__) || defined(_ARM_ARCH_6) +# undef MOZILLA_ARM_ARCH +# define MOZILLA_ARM_ARCH 6 +# endif + +# if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || \ + defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || \ + defined(__ARM_ARCH_7EM__) || defined(_ARM_ARCH_7) +# undef MOZILLA_ARM_ARCH +# define MOZILLA_ARM_ARCH 7 +# endif + +# ifdef __GNUC__ +# define MOZILLA_MAY_SUPPORT_EDSP 1 + +# if defined(HAVE_ARM_SIMD) +# define MOZILLA_MAY_SUPPORT_ARMV6 1 +# endif + +# if defined(HAVE_ARM_NEON) +# define MOZILLA_MAY_SUPPORT_NEON 1 +# endif + +# if defined(HAVE_ARM_SIMD) +# define MOZILLA_MAY_SUPPORT_ARMV7 1 +# endif +# endif + +// Currently we only have CPU detection for Linux via /proc/cpuinfo +# if defined(__linux__) || defined(ANDROID) +# define MOZILLA_ARM_HAVE_CPUID_DETECTION 1 +# endif + +#endif + +// When using -mfpu=neon on arm gcc, or using default on aarch64, +// the compiler generates neon instructions. +#if defined(__ARM_NEON) +# define MOZILLA_PRESUME_NEON 1 +#endif + +namespace mozilla { + +namespace arm_private { +#if defined(MOZILLA_ARM_HAVE_CPUID_DETECTION) +# if !defined(MOZILLA_PRESUME_EDSP) +extern bool MFBT_DATA edsp_enabled; +# endif +# if !defined(MOZILLA_PRESUME_ARMV6) +extern bool MFBT_DATA armv6_enabled; +# endif +# if !defined(MOZILLA_PRESUME_ARMV7) +extern bool MFBT_DATA armv7_enabled; +# endif +# if !defined(MOZILLA_PRESUME_NEON) +extern bool MFBT_DATA neon_enabled; +# endif +#endif +} // namespace arm_private + +#if defined(MOZILLA_PRESUME_EDSP) +# define MOZILLA_MAY_SUPPORT_EDSP 1 +inline bool supports_edsp() { return true; } +#elif defined(MOZILLA_MAY_SUPPORT_EDSP) && \ + defined(MOZILLA_ARM_HAVE_CPUID_DETECTION) +inline bool supports_edsp() { return arm_private::edsp_enabled; } +#else +inline bool supports_edsp() { return false; } +#endif + +#if defined(MOZILLA_PRESUME_ARMV6) +# define MOZILLA_MAY_SUPPORT_ARMV6 1 +inline bool supports_armv6() { return true; } +#elif defined(MOZILLA_MAY_SUPPORT_ARMV6) && \ + defined(MOZILLA_ARM_HAVE_CPUID_DETECTION) +inline bool supports_armv6() { return arm_private::armv6_enabled; } +#else +inline bool supports_armv6() { return false; } +#endif + +#if defined(MOZILLA_PRESUME_ARMV7) +# define MOZILLA_MAY_SUPPORT_ARMV7 1 +inline bool supports_armv7() { return true; } +#elif defined(MOZILLA_MAY_SUPPORT_ARMV7) && \ + defined(MOZILLA_ARM_HAVE_CPUID_DETECTION) +inline bool supports_armv7() { return arm_private::armv7_enabled; } +#else +inline bool supports_armv7() { return false; } +#endif + +#if defined(MOZILLA_PRESUME_NEON) +# define MOZILLA_MAY_SUPPORT_NEON 1 +inline bool supports_neon() { return true; } +#elif defined(MOZILLA_MAY_SUPPORT_NEON) && \ + defined(MOZILLA_ARM_HAVE_CPUID_DETECTION) +inline bool supports_neon() { return arm_private::neon_enabled; } +#else +inline bool supports_neon() { return false; } +#endif + +} // namespace mozilla + +#endif /* !defined(mozilla_arm_h_) */ diff --git a/mozglue/build/dummy.cpp b/mozglue/build/dummy.cpp new file mode 100644 index 0000000000..c6b1ccd808 --- /dev/null +++ b/mozglue/build/dummy.cpp @@ -0,0 +1,5 @@ +/* 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/. */ + +void _dummy(void) {} diff --git a/mozglue/build/mips.cpp b/mozglue/build/mips.cpp new file mode 100644 index 0000000000..7166080f5e --- /dev/null +++ b/mozglue/build/mips.cpp @@ -0,0 +1,42 @@ +/* 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/. */ + +/* compile-time and runtime tests for whether to use MIPS-specific extensions */ + +#include "mips.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +enum { + MIPS_FLAG_LOONGSON3 = 1, +}; + +static unsigned get_mips_cpu_flags(void) { + unsigned flags = 0; + FILE* fin; + + fin = fopen("/proc/cpuinfo", "r"); + if (fin != nullptr) { + char buf[1024]; + memset(buf, 0, sizeof(buf)); + fread(buf, sizeof(char), sizeof(buf) - 1, fin); + fclose(fin); + if (strstr(buf, "Loongson-3")) flags |= MIPS_FLAG_LOONGSON3; + } + return flags; +} + +static bool check_loongson3(void) { + // Cache a local copy so we only have to read /proc/cpuinfo once. + static unsigned mips_cpu_flags = get_mips_cpu_flags(); + return (mips_cpu_flags & MIPS_FLAG_LOONGSON3) != 0; +} + +namespace mozilla { +namespace mips_private { +bool isLoongson3 = check_loongson3(); +} // namespace mips_private +} // namespace mozilla diff --git a/mozglue/build/mips.h b/mozglue/build/mips.h new file mode 100644 index 0000000000..a7c3ed5416 --- /dev/null +++ b/mozglue/build/mips.h @@ -0,0 +1,29 @@ +/* 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/. */ + +/* compile-time and runtime tests for whether to use MIPS-specific extensions */ + +#ifndef mozilla_mips_h_ +#define mozilla_mips_h_ + +// for definition of MFBT_DATA +#include "mozilla/Types.h" + +namespace mozilla { + +namespace mips_private { +extern bool MFBT_DATA isLoongson3; +} // namespace mips_private + +inline bool supports_mmi() { +#ifdef __mips__ + return mips_private::isLoongson3; +#else + return false; +#endif +} + +} // namespace mozilla + +#endif /* !defined(mozilla_mips_h_) */ diff --git a/mozglue/build/moz.build b/mozglue/build/moz.build new file mode 100644 index 0000000000..fe195739e2 --- /dev/null +++ b/mozglue/build/moz.build @@ -0,0 +1,115 @@ +# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*- +# vim: set filetype=python: +# 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/. + +# Build mozglue as a shared lib on Windows, OSX and Android. But not for +# embedders! +# If this is ever changed, update MOZ_SHARED_MOZGLUE in browser/installer/Makefile.in +if CONFIG["JS_STANDALONE"] and not CONFIG["MOZ_MEMORY"]: + Library("mozglue") +elif CONFIG["OS_TARGET"] in ("WINNT", "Darwin", "Android"): + SharedLibrary("mozglue") +else: + Library("mozglue") + +if CONFIG["OS_TARGET"] == "Android": + LDFLAGS += ["-Wl,--version-script,%s/mozglue.ver" % SRCDIR] + SOURCES += [ + "BionicGlue.cpp", + ] + +if CONFIG["MOZ_ASAN"]: + SOURCES += [ + "AsanOptions.cpp", + ] + +if CONFIG["MOZ_UBSAN"]: + SOURCES += [ + "UbsanOptions.cpp", + ] + +if CONFIG["MOZ_TSAN"]: + SOURCES += [ + "TsanOptions.cpp", + ] + +if CONFIG["OS_TARGET"] == "WINNT": + if CONFIG["MOZ_MEMORY"]: + DEFFILE = "mozglue.def" + OS_LIBS += [ + "advapi32", + "user32", + "winmm", + "uuid", + ] + # We'll break the DLL blocklist if we immediately load user32.dll. + # For the same reason, we delayload these other DLLs to avoid eager + # dependencies on user32.dll. + DELAYLOAD_DLLS += [ + "advapi32.dll", + "dbghelp.dll", + "oleaut32.dll", + "ole32.dll", + "user32.dll", + "version.dll", + "winmm.dll", + ] + +if CONFIG["MOZ_WIDGET_TOOLKIT"]: + + if CONFIG["MOZ_MEMORY"] and FORCE_SHARED_LIB: + pass + # TODO: SHARED_LIBRARY_LIBS go here + else: + # Temporary, until bug 662814 lands + NoVisibilityFlags() + SOURCES += [ + "dummy.cpp", + ] + + if CONFIG["OS_TARGET"] == "WINNT": + LOCAL_INCLUDES += [ + "/memory/build", + ] + + EXPORTS.mozilla += [ + "arm.h", + "mips.h", + "ppc.h", + ] + + if CONFIG["CPU_ARCH"] == "arm": + SOURCES += [ + "arm.cpp", + ] + + if CONFIG["CPU_ARCH"].startswith("mips"): + SOURCES += [ + "mips.cpp", + ] + + if CONFIG["CPU_ARCH"].startswith("ppc"): + SOURCES += [ + "ppc.cpp", + ] + + if CONFIG["MOZ_LINKER"]: + USE_LIBS += [ + "zlib", + ] + +USE_LIBS += [ + "mfbt", +] + +LIBRARY_DEFINES["IMPL_MFBT"] = True +LIBRARY_DEFINES["MOZ_HAS_MOZGLUE"] = True + +if CONFIG["MOZ_LINKER"] and CONFIG["CPU_ARCH"] == "arm": + LDFLAGS += ["-Wl,-version-script,%s/arm-eabi-filter" % SRCDIR] + +DIST_INSTALL = True + +include("replace_malloc.mozbuild") diff --git a/mozglue/build/mozglue.def b/mozglue/build/mozglue.def new file mode 100644 index 0000000000..188037b9f1 --- /dev/null +++ b/mozglue/build/mozglue.def @@ -0,0 +1,22 @@ +; 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/. + +LIBRARY mozglue.dll + +EXPORTS + ; symbols that are actually useful + malloc=je_malloc + calloc=je_calloc + realloc=je_realloc + free=je_free + posix_memalign=je_posix_memalign + malloc_usable_size=je_malloc_usable_size + malloc_good_size=je_malloc_good_size + _aligned_free=je_free + _aligned_malloc=wrap__aligned_malloc + strndup=wrap_strndup + strdup=wrap_strdup + _strdup=wrap_strdup + wcsdup=wrap_wcsdup + _wcsdup=wrap_wcsdup diff --git a/mozglue/build/mozglue.dll.manifest b/mozglue/build/mozglue.dll.manifest new file mode 100644 index 0000000000..037eae4f77 --- /dev/null +++ b/mozglue/build/mozglue.dll.manifest @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8" standalone="yes"?> +<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> +<assemblyIdentity + version="1.0.0.0" + name="mozglue" + type="win32" +/> +<file name="mozglue.dll"/> +</assembly> diff --git a/mozglue/build/mozglue.ver b/mozglue/build/mozglue.ver new file mode 100644 index 0000000000..433d820b36 --- /dev/null +++ b/mozglue/build/mozglue.ver @@ -0,0 +1,4 @@ +libmozglue.so { +global: + *; +}; diff --git a/mozglue/build/ppc.cpp b/mozglue/build/ppc.cpp new file mode 100644 index 0000000000..20ef121386 --- /dev/null +++ b/mozglue/build/ppc.cpp @@ -0,0 +1,64 @@ +/* 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/. */ + +/* compile-time and runtime tests for whether to use Power ISA-specific + * extensions */ + +#include "ppc.h" +#include "mozilla/Unused.h" + +#include <stdio.h> +#include <stdlib.h> + +#if defined(XP_LINUX) +// Use the getauxval() function if available. +// ARCH_3_00 wasn't defined until glibc 2.23, so include just in case. +# include <sys/auxv.h> +# ifndef PPC_FEATURE2_ARCH_3_00 +# define PPC_FEATURE2_ARCH_3_00 0x00800000 +# endif +#endif + +const unsigned PPC_FLAG_VMX = 1; +const unsigned PPC_FLAG_VSX = 2; +const unsigned PPC_FLAG_VSX3 = 4; + +static signed get_ppc_cpu_flags(void) { + // This could be expensive, so cache the result. + static signed cpu_flags = -1; + + if (cpu_flags > -1) { // already checked + return cpu_flags; + } + cpu_flags = 0; + +#if defined(XP_LINUX) + // Try getauxval(). + unsigned long int cap = getauxval(AT_HWCAP); + unsigned long int cap2 = getauxval(AT_HWCAP2); + + if (cap & PPC_FEATURE_HAS_ALTIVEC) { + cpu_flags |= PPC_FLAG_VMX; + } + if (cap & PPC_FEATURE_HAS_VSX) { + cpu_flags |= PPC_FLAG_VSX; + } + if (cap2 & PPC_FEATURE2_ARCH_3_00) { + cpu_flags |= PPC_FLAG_VSX3; + } +#else + // Non-Linux detection here. Currently, on systems other than Linux, + // no CPU SIMD features will be detected. +#endif + + return cpu_flags; +} + +namespace mozilla { +namespace ppc_private { +bool vmx_enabled = !!(get_ppc_cpu_flags() & PPC_FLAG_VMX); +bool vsx_enabled = !!(get_ppc_cpu_flags() & PPC_FLAG_VSX); +bool vsx3_enabled = !!(get_ppc_cpu_flags() & PPC_FLAG_VSX3); +} // namespace ppc_private +} // namespace mozilla diff --git a/mozglue/build/ppc.h b/mozglue/build/ppc.h new file mode 100644 index 0000000000..9527d8dadd --- /dev/null +++ b/mozglue/build/ppc.h @@ -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/. */ + +/* compile-time and runtime tests for whether to use Power ISA-specific + extensions */ + +#ifndef mozilla_ppc_h_ +#define mozilla_ppc_h_ + +// for definition of MFBT_DATA +#include "mozilla/Types.h" + +namespace mozilla { +namespace ppc_private { +extern bool MFBT_DATA vmx_enabled; +extern bool MFBT_DATA vsx_enabled; +extern bool MFBT_DATA vsx3_enabled; +} // namespace ppc_private + +inline bool supports_vmx() { +#ifdef __powerpc__ + return ppc_private::vmx_enabled; +#else + return false; +#endif +} + +inline bool supports_vsx() { +#ifdef __powerpc__ + return ppc_private::vsx_enabled; +#else + return false; +#endif +} + +inline bool supports_vsx3() { +#ifdef __powerpc__ + return ppc_private::vsx3_enabled; +#else + return false; +#endif +} + +} // namespace mozilla + +#endif /* !defined(mozilla_ppc_h_) */ diff --git a/mozglue/build/replace_malloc.mozbuild b/mozglue/build/replace_malloc.mozbuild new file mode 100644 index 0000000000..16c8b7271f --- /dev/null +++ b/mozglue/build/replace_malloc.mozbuild @@ -0,0 +1,6 @@ +# 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/. + +if CONFIG['OS_TARGET'] == 'Darwin' and CONFIG['MOZ_REPLACE_MALLOC']: + LDFLAGS += ['-Wl,-U,_replace_init'] |