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/* -*- 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
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