blob: 3460812edc0551745f9264347d399e93eba0f020 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/common/child_process_logging.h"
#include <windows.h>
#include <memory>
#include "base/debug/crash_logging.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/crash_keys.h"
#include "chrome/installer/util/google_update_settings.h"
#include "components/metrics/client_info.h"
namespace child_process_logging {
namespace {
// exported in
// void __declspec(dllexport) __cdecl SetCrashKeyValueImpl.
typedef void(__cdecl* SetCrashKeyValue)(const wchar_t*, const wchar_t*);
// exported in
// void __declspec(dllexport) __cdecl ClearCrashKeyValueImpl.
typedef void(__cdecl* ClearCrashKeyValue)(const wchar_t*);
void SetCrashKeyValueTrampoline(const base::StringPiece& key,
const base::StringPiece& value) {
static SetCrashKeyValue set_crash_key = []() {
HMODULE elf_module = GetModuleHandle(chrome::kChromeElfDllName);
return reinterpret_cast<SetCrashKeyValue>(
elf_module ? GetProcAddress(elf_module, "SetCrashKeyValueImpl")
: nullptr);
if (set_crash_key) {
void ClearCrashKeyValueTrampoline(const base::StringPiece& key) {
static ClearCrashKeyValue clear_crash_key = []() {
HMODULE elf_module = GetModuleHandle(chrome::kChromeElfDllName);
return reinterpret_cast<ClearCrashKeyValue>(
elf_module ? GetProcAddress(elf_module, "ClearCrashKeyValueImpl")
: nullptr);
if (clear_crash_key)
} // namespace
void Init() {
// This would be handled by BreakpadClient::SetCrashClientIdFromGUID(), but
// because of the aforementioned issue, crash keys aren't ready yet at the
// time of Breakpad initialization, load the client id backed up in Google
// Update settings instead.
// Please note if we are using Crashpad via chrome_elf then we need to call
// into chrome_elf to pass in the client id.
std::unique_ptr<metrics::ClientInfo> client_info =
// Set the client id in chrome_elf if it is loaded. We should not be
// registering crash keys in this case as that would already have been
// done by chrome_elf.
HMODULE elf_module = GetModuleHandle(chrome::kChromeElfDllName);
if (elf_module) {
// TODO(ananta)
// Remove this when the change to not require crash key registration lands.
// Please note that we are registering the crash keys twice if chrome_elf is
// loaded. Once in chrome_elf and once in the current module. Alternatively
// we could implement a crash key lookup trampoline which defers to
// chrome_elf. We decided to go with the duplicate key registration for
// simplicity.
#if !defined(COMPONENT_BUILD)
using SetMetricsClientIdFunction = void (*)(const char* client_id);
SetMetricsClientIdFunction set_metrics_id_fn =
::GetProcAddress(elf_module, "SetMetricsClientId"));
set_metrics_id_fn(client_info ? client_info->client_id.c_str() : nullptr);
} else {
// TODO(ananta)
// Remove this when the change to not require crash key registration lands.
if (client_info)
} // namespace child_process_logging