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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome_elf/chrome_elf_main.h" | 5 #include "chrome_elf/chrome_elf_main.h" |
| 6 | 6 |
| 7 #include <windows.h> | 7 #include <windows.h> |
| 8 #include <algorithm> | 8 #include <algorithm> |
| 9 | 9 |
| 10 #include "base/lazy_instance.h" | 10 #include "base/lazy_instance.h" |
| 11 #include "base/strings/string16.h" | 11 #include "base/strings/string16.h" |
| 12 #include "base/win/iat_patch_function.h" | 12 #include "base/win/iat_patch_function.h" |
| 13 #include "build/build_config.h" | 13 #include "build/build_config.h" |
| 14 #include "chrome/app/chrome_crash_reporter_client_win.h" | 14 #include "chrome/app/chrome_crash_reporter_client_win.h" |
| 15 #include "chrome/install_static/install_util.h" | 15 #include "chrome/install_static/install_util.h" |
| 16 #include "chrome_elf/blacklist/blacklist.h" | 16 #include "chrome_elf/blacklist/blacklist.h" |
| 17 #include "chrome_elf/blacklist/crashpad_helper.h" | 17 #include "chrome_elf/blacklist/crashpad_helper.h" |
| 18 #include "chrome_elf/chrome_elf_constants.h" | 18 #include "chrome_elf/chrome_elf_constants.h" |
| 19 #include "components/crash/content/app/crashpad.h" | 19 #include "components/crash/content/app/crashpad.h" |
| 20 #include "components/crash/core/common/crash_keys.h" | 20 #include "components/crash/core/common/crash_keys.h" |
| 21 | 21 |
| 22 namespace { | 22 namespace { |
| 23 | 23 |
| 24 base::LazyInstance<std::vector<crash_reporter::Report>>::Leaky g_crash_reports = | 24 base::LazyInstance<std::vector<crash_reporter::Report>>::Leaky g_crash_reports = |
| 25 LAZY_INSTANCE_INITIALIZER; | 25 LAZY_INSTANCE_INITIALIZER; |
| 26 | 26 |
| 27 // Gets the exe name from the full path of the exe. | |
| 28 base::string16 GetExeName() { | |
| 29 wchar_t file_path[MAX_PATH] = {}; | |
| 30 if (!::GetModuleFileName(nullptr, file_path, arraysize(file_path))) { | |
| 31 assert(false); | |
| 32 return base::string16(); | |
| 33 } | |
| 34 base::string16 file_name_string = file_path; | |
| 35 size_t last_slash_pos = file_name_string.find_last_of(L'\\'); | |
| 36 if (last_slash_pos != base::string16::npos) { | |
| 37 file_name_string = file_name_string.substr( | |
| 38 last_slash_pos + 1, file_name_string.length() - last_slash_pos); | |
| 39 } | |
| 40 std::transform(file_name_string.begin(), file_name_string.end(), | |
| 41 file_name_string.begin(), ::tolower); | |
| 42 return file_name_string; | |
| 43 } | |
| 44 | |
| 45 void InitializeCrashReportingForProcess() { | |
| 46 // We want to initialize crash reporting only in chrome.exe | |
| 47 if (GetExeName() != L"chrome.exe") | |
| 48 return; | |
| 49 ChromeCrashReporterClient::InitializeCrashReportingForProcess(); | |
| 50 } | |
| 51 | |
| 52 #if !defined(ADDRESS_SANITIZER) | 27 #if !defined(ADDRESS_SANITIZER) |
| 53 // chrome_elf loads early in the process and initializes Crashpad. That in turn | 28 // chrome_elf loads early in the process and initializes Crashpad. That in turn |
| 54 // uses the SetUnhandledExceptionFilter API to set a top level exception | 29 // uses the SetUnhandledExceptionFilter API to set a top level exception |
| 55 // handler for the process. When the process eventually initializes, CRT sets | 30 // handler for the process. When the process eventually initializes, CRT sets |
| 56 // an exception handler which calls TerminateProcess which effectively bypasses | 31 // an exception handler which calls TerminateProcess which effectively bypasses |
| 57 // us. Ideally we want to be at the top of the unhandled exception filter | 32 // us. Ideally we want to be at the top of the unhandled exception filter |
| 58 // chain. However we don't have a good way of intercepting the | 33 // chain. However we don't have a good way of intercepting the |
| 59 // SetUnhandledExceptionFilter API in the sandbox. EAT patching kernel32 or | 34 // SetUnhandledExceptionFilter API in the sandbox. EAT patching kernel32 or |
| 60 // kernelbase should ideally work. However the kernel32 kernelbase dlls are | 35 // kernelbase should ideally work. However the kernel32 kernelbase dlls are |
| 61 // prebound which causes EAT patching to not work. Sidestep works. However it | 36 // prebound which causes EAT patching to not work. Sidestep works. However it |
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| 103 // This helper is invoked by debugging code in chrome to register the client | 78 // This helper is invoked by debugging code in chrome to register the client |
| 104 // id. | 79 // id. |
| 105 extern "C" __declspec(dllexport) void SetMetricsClientId( | 80 extern "C" __declspec(dllexport) void SetMetricsClientId( |
| 106 const char* client_id) { | 81 const char* client_id) { |
| 107 if (client_id) | 82 if (client_id) |
| 108 crash_keys::SetMetricsClientIdFromGUID(client_id); | 83 crash_keys::SetMetricsClientIdFromGUID(client_id); |
| 109 } | 84 } |
| 110 | 85 |
| 111 BOOL APIENTRY DllMain(HMODULE module, DWORD reason, LPVOID reserved) { | 86 BOOL APIENTRY DllMain(HMODULE module, DWORD reason, LPVOID reserved) { |
| 112 if (reason == DLL_PROCESS_ATTACH) { | 87 if (reason == DLL_PROCESS_ATTACH) { |
| 113 InitializeCrashReportingForProcess(); | 88 ChromeCrashReporterClient::InitializeCrashReportingForProcess(); |
| 114 // CRT on initialization installs an exception filter which calls | 89 // CRT on initialization installs an exception filter which calls |
| 115 // TerminateProcess. We need to hook CRT's attempt to set an exception | 90 // TerminateProcess. We need to hook CRT's attempt to set an exception |
| 116 // handler and ignore it. Don't do this when ASan is present, or ASan will | 91 // handler and ignore it. Don't do this when ASan is present, or ASan will |
| 117 // fail to install its own unhandled exception filter. | 92 // fail to install its own unhandled exception filter. |
| 118 #if !defined(ADDRESS_SANITIZER) | 93 #if !defined(ADDRESS_SANITIZER) |
| 119 DisableSetUnhandledExceptionFilter(); | 94 DisableSetUnhandledExceptionFilter(); |
| 120 #endif | 95 #endif |
| 121 | 96 |
| 122 install_static::InitializeProcessType(); | 97 install_static::InitializeProcessType(); |
| 123 | 98 |
| 124 __try { | 99 __try { |
| 125 blacklist::Initialize(false); // Don't force, abort if beacon is present. | 100 blacklist::Initialize(false); // Don't force, abort if beacon is present. |
| 126 } __except(GenerateCrashDump(GetExceptionInformation())) { | 101 } __except(GenerateCrashDump(GetExceptionInformation())) { |
| 127 } | 102 } |
| 128 } | 103 } |
| 129 return TRUE; | 104 return TRUE; |
| 130 } | 105 } |
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