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Diffstat (limited to 'tools/profiler/public/shared-libraries.h')
-rw-r--r-- | tools/profiler/public/shared-libraries.h | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/tools/profiler/public/shared-libraries.h b/tools/profiler/public/shared-libraries.h new file mode 100644 index 0000000000..dfd3599e71 --- /dev/null +++ b/tools/profiler/public/shared-libraries.h @@ -0,0 +1,213 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* 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 SHARED_LIBRARIES_H_ +#define SHARED_LIBRARIES_H_ + +#ifndef MOZ_GECKO_PROFILER +# error This header does not have a useful implementation on your platform! +#endif + +#include "nsNativeCharsetUtils.h" +#include "nsString.h" +#include <nsID.h> + +#include <algorithm> +#include <stdint.h> +#include <stdlib.h> +#include <string> +#include <vector> + +namespace IPC { +class MessageReader; +class MessageWriter; +template <typename T> +struct ParamTraits; +} // namespace IPC + +class SharedLibrary { + public: + SharedLibrary(uintptr_t aStart, uintptr_t aEnd, uintptr_t aOffset, + const nsCString& aBreakpadId, const nsCString& aCodeId, + const nsString& aModuleName, const nsString& aModulePath, + const nsString& aDebugName, const nsString& aDebugPath, + const nsCString& aVersion, const char* aArch) + : mStart(aStart), + mEnd(aEnd), + mOffset(aOffset), + mBreakpadId(aBreakpadId), + mCodeId(aCodeId), + mModuleName(aModuleName), + mModulePath(aModulePath), + mDebugName(aDebugName), + mDebugPath(aDebugPath), + mVersion(aVersion), + mArch(aArch) {} + + bool operator==(const SharedLibrary& other) const { + return (mStart == other.mStart) && (mEnd == other.mEnd) && + (mOffset == other.mOffset) && (mModuleName == other.mModuleName) && + (mModulePath == other.mModulePath) && + (mDebugName == other.mDebugName) && + (mDebugPath == other.mDebugPath) && + (mBreakpadId == other.mBreakpadId) && (mCodeId == other.mCodeId) && + (mVersion == other.mVersion) && (mArch == other.mArch); + } + + uintptr_t GetStart() const { return mStart; } + uintptr_t GetEnd() const { return mEnd; } + uintptr_t GetOffset() const { return mOffset; } + const nsCString& GetBreakpadId() const { return mBreakpadId; } + const nsCString& GetCodeId() const { return mCodeId; } + const nsString& GetModuleName() const { return mModuleName; } + const nsString& GetModulePath() const { return mModulePath; } + const std::string GetNativeDebugPath() const { + nsAutoCString debugPathStr; + + NS_CopyUnicodeToNative(mDebugPath, debugPathStr); + + return debugPathStr.get(); + } + const nsString& GetDebugName() const { return mDebugName; } + const nsString& GetDebugPath() const { return mDebugPath; } + const nsCString& GetVersion() const { return mVersion; } + const std::string& GetArch() const { return mArch; } + size_t SizeOf() const { + return sizeof *this + mBreakpadId.Length() + mCodeId.Length() + + mModuleName.Length() * 2 + mModulePath.Length() * 2 + + mDebugName.Length() * 2 + mDebugPath.Length() * 2 + + mVersion.Length() + mArch.size(); + } + + SharedLibrary() : mStart{0}, mEnd{0}, mOffset{0} {} + + private: + uintptr_t mStart; + uintptr_t mEnd; + uintptr_t mOffset; + nsCString mBreakpadId; + // A string carrying an identifier for a binary. + // + // All platforms have different formats: + // - Windows: The code ID for a Windows PE file. + // It's the PE timestamp and PE image size. + // - macOS: The code ID for a macOS / iOS binary (mach-O). + // It's the mach-O UUID without dashes and without the trailing 0 for the + // breakpad ID. + // - Linux/Android: The code ID for a Linux ELF file. + // It's the complete build ID, as hex string. + nsCString mCodeId; + nsString mModuleName; + nsString mModulePath; + nsString mDebugName; + nsString mDebugPath; + nsCString mVersion; + std::string mArch; + + friend struct IPC::ParamTraits<SharedLibrary>; +}; + +static bool CompareAddresses(const SharedLibrary& first, + const SharedLibrary& second) { + return first.GetStart() < second.GetStart(); +} + +class SharedLibraryInfo { + public: + static SharedLibraryInfo GetInfoForSelf(); +#ifdef XP_WIN + static SharedLibraryInfo GetInfoFromPath(const wchar_t* aPath); +#endif + + static void Initialize(); + + void AddSharedLibrary(SharedLibrary entry) { mEntries.push_back(entry); } + + void AddAllSharedLibraries(const SharedLibraryInfo& sharedLibraryInfo) { + mEntries.insert(mEntries.end(), sharedLibraryInfo.mEntries.begin(), + sharedLibraryInfo.mEntries.end()); + } + + const SharedLibrary& GetEntry(size_t i) const { return mEntries[i]; } + + SharedLibrary& GetMutableEntry(size_t i) { return mEntries[i]; } + + // Removes items in the range [first, last) + // i.e. element at the "last" index is not removed + void RemoveEntries(size_t first, size_t last) { + mEntries.erase(mEntries.begin() + first, mEntries.begin() + last); + } + + bool Contains(const SharedLibrary& searchItem) const { + return (mEntries.end() != + std::find(mEntries.begin(), mEntries.end(), searchItem)); + } + + size_t GetSize() const { return mEntries.size(); } + + void SortByAddress() { + std::sort(mEntries.begin(), mEntries.end(), CompareAddresses); + } + + // Remove duplicate entries from the vector. + // + // We purposefully don't use the operator== implementation of SharedLibrary + // because it compares all the fields including mStart, mEnd and mOffset which + // are not the same across different processes. + void DeduplicateEntries() { + static auto cmpSort = [](const SharedLibrary& a, const SharedLibrary& b) { + return std::tie(a.GetModuleName(), a.GetBreakpadId()) < + std::tie(b.GetModuleName(), b.GetBreakpadId()); + }; + static auto cmpEqual = [](const SharedLibrary& a, const SharedLibrary& b) { + return std::tie(a.GetModuleName(), a.GetBreakpadId()) == + std::tie(b.GetModuleName(), b.GetBreakpadId()); + }; + // std::unique requires the vector to be sorted first. It can only remove + // consecutive duplicate elements. + std::sort(mEntries.begin(), mEntries.end(), cmpSort); + // Remove the duplicates since it's sorted now. + mEntries.erase(std::unique(mEntries.begin(), mEntries.end(), cmpEqual), + mEntries.end()); + } + + void Clear() { mEntries.clear(); } + + size_t SizeOf() const { + size_t size = 0; + + for (const auto& item : mEntries) { + size += item.SizeOf(); + } + + return size; + } + + private: + std::vector<SharedLibrary> mEntries; + + friend struct IPC::ParamTraits<SharedLibraryInfo>; +}; + +namespace IPC { +template <> +struct ParamTraits<SharedLibrary> { + typedef SharedLibrary paramType; + + static void Write(MessageWriter* aWriter, const paramType& aParam); + static bool Read(MessageReader* aReader, paramType* aResult); +}; + +template <> +struct ParamTraits<SharedLibraryInfo> { + typedef SharedLibraryInfo paramType; + + static void Write(MessageWriter* aWriter, const paramType& aParam); + static bool Read(MessageReader* aReader, paramType* aResult); +}; +} // namespace IPC + +#endif |