First stab at Mac breakpad support.

chrome/app/breakpad.cc

Index: chrome/app/breakpad.cc
diff --git a/chrome/app/breakpad.cc b/chrome/app/breakpad.cc
deleted file mode 100644
index ae16adc099b3a56b2899bfdbc1525d1406ec4ae9..0000000000000000000000000000000000000000
--- a/chrome/app/breakpad.cc
+++ /dev/null
@@ -1,332 +0,0 @@
-// Copyright (c) 2006-2008 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/app/breakpad.h"
-
-#include <windows.h>
-#include <tchar.h>
-#include <vector>
-
-#include "base/base_switches.h"
-#include "base/command_line.h"
-#include "base/file_util.h"
-#include "base/file_version_info.h"
-#include "base/registry.h"
-#include "base/string_util.h"
-#include "base/win_util.h"
-#include "chrome/app/google_update_client.h"
-#include "chrome/common/env_vars.h"
-#include "chrome/installer/util/install_util.h"
-#include "chrome/installer/util/google_update_settings.h"
-#include "breakpad/src/client/windows/handler/exception_handler.h"
-
-namespace {
-
-const wchar_t kGoogleUpdatePipeName[] = L"\\\\.\\pipe\\GoogleCrashServices\\";
-const wchar_t kChromePipeName[] = L"\\\\.\\pipe\\ChromeCrashServices";
-
-// This is the well known SID for the system principal.
-const wchar_t kSystemPrincipalSid[] =L"S-1-5-18";
-
-google_breakpad::ExceptionHandler* g_breakpad = NULL;
-
-std::vector<wchar_t*>* url_chunks = NULL;
-
-// Dumps the current process memory.
-extern "C" void __declspec(dllexport) __cdecl DumpProcess() {
-  if (g_breakpad)
-    g_breakpad->WriteMinidump();
-}
-
-// Returns the custom info structure based on the dll in parameter and the
-// process type.
-static google_breakpad::CustomClientInfo* custom_info = NULL;
-google_breakpad::CustomClientInfo* GetCustomInfo(const std::wstring& dll_path,
-                                                 const std::wstring& type) {
-  scoped_ptr<FileVersionInfo>
-      version_info(FileVersionInfo::CreateFileVersionInfo(dll_path));
-
-  std::wstring version, product;
-  if (version_info.get()) {
-    // Get the information from the file.
-    product = version_info->product_short_name();
-    version = version_info->product_version();
-    if (!version_info->is_official_build())
-      version.append(L"-devel");
-  } else {
-    // No version info found. Make up the values.
-     product = L"Chrome";
-     version = L"0.0.0.0-devel";
-  }
-
-  google_breakpad::CustomInfoEntry ver_entry(L"ver", version.c_str());
-  google_breakpad::CustomInfoEntry prod_entry(L"prod", product.c_str());
-  google_breakpad::CustomInfoEntry plat_entry(L"plat", L"Win32");
-  google_breakpad::CustomInfoEntry type_entry(L"ptype", type.c_str());
-
-  if (type == L"renderer") {
-    // If we're a renderer create entries for the URL. Currently we only allow
-    // each chunk to be 64 characters, which isn't enough for a URL. As a hack
-    // we create 8 entries and split the URL across the entries.
-    google_breakpad::CustomInfoEntry url1(L"url-chunk-1", L"");
-    google_breakpad::CustomInfoEntry url2(L"url-chunk-2", L"");
-    google_breakpad::CustomInfoEntry url3(L"url-chunk-3", L"");
-    google_breakpad::CustomInfoEntry url4(L"url-chunk-4", L"");
-    google_breakpad::CustomInfoEntry url5(L"url-chunk-5", L"");
-    google_breakpad::CustomInfoEntry url6(L"url-chunk-6", L"");
-    google_breakpad::CustomInfoEntry url7(L"url-chunk-7", L"");
-    google_breakpad::CustomInfoEntry url8(L"url-chunk-8", L"");
-
-    static google_breakpad::CustomInfoEntry entries[] =
-        { ver_entry, prod_entry, plat_entry, type_entry, url1, url2, url3,
-          url4, url5, url6, url7, url8 };
-
-    std::vector<wchar_t*>* tmp_url_chunks = new std::vector<wchar_t*>(8);
-    for (size_t i = 0; i < 8; ++i)
-      (*tmp_url_chunks)[i] = entries[4 + i].value;
-    url_chunks = tmp_url_chunks;
-
-    static google_breakpad::CustomClientInfo custom_info = {entries,
-                                                            arraysize(entries)};
-
-    return &custom_info;
-  }
-  static google_breakpad::CustomInfoEntry entries[] = {ver_entry,
-                                                       prod_entry,
-                                                       plat_entry,
-                                                       type_entry};
-
-  static google_breakpad::CustomClientInfo custom_info = {entries,
-                                                          arraysize(entries)};
-
-  return &custom_info;
-}
-
-// Contains the information needed by the worker thread.
-struct CrashReporterInfo {
-  google_breakpad::CustomClientInfo* custom_info;
-  std::wstring dll_path;
-  std::wstring process_type;
-};
-
-// This callback is executed when the browser process has crashed, after
-// the crash dump has been created. We need to minimize the amount of work
-// done here since we have potentially corrupted process. Our job is to
-// spawn another instance of chrome which will show a 'chrome has crashed'
-// dialog. This code needs to live in the exe and thus has no access to
-// facilities such as the i18n helpers.
-bool DumpDoneCallback(const wchar_t*, const wchar_t*, void*,
-                      EXCEPTION_POINTERS* ex_info,
-                      MDRawAssertionInfo*, bool) {
-  // We set CHROME_CRASHED env var. If the CHROME_RESTART is present.
-  // This signals the child process to show the 'chrome has crashed' dialog.
-  if (!::GetEnvironmentVariableW(env_vars::kRestartInfo, NULL, 0))
-    return true;
-  ::SetEnvironmentVariableW(env_vars::kShowRestart, L"1");
-  // Now we just start chrome browser with the same command line.
-  STARTUPINFOW si = {sizeof(si)};
-  PROCESS_INFORMATION pi;
-  if (::CreateProcessW(NULL, ::GetCommandLineW(), NULL, NULL, FALSE,
-                       CREATE_UNICODE_ENVIRONMENT, NULL, NULL, &si, &pi)) {
-    ::CloseHandle(pi.hProcess);
-    ::CloseHandle(pi.hThread);
-  }
-  // After this return we will be terminated. The actual return value is
-  // not used at all.
-  return true;
-}
-
-// Previous unhandled filter. Will be called if not null when we
-// intercept a crash.
-LPTOP_LEVEL_EXCEPTION_FILTER previous_filter = NULL;
-
-// Exception filter used when breakpad is not enabled. We just display
-// the "Do you want to restart" message and then we call the previous filter.
-long WINAPI ChromeExceptionFilter(EXCEPTION_POINTERS* info) {
-  DumpDoneCallback(NULL, NULL, NULL, info, NULL, false);
-
-  if (previous_filter)
-    return previous_filter(info);
-
-  return EXCEPTION_EXECUTE_HANDLER;
-}
-
-extern "C" void __declspec(dllexport) __cdecl SetActiveRendererURL(
-    const wchar_t* url_cstring) {
-  DCHECK(url_cstring);
-  if (!url_chunks)
-    return;
-
-  std::wstring url(url_cstring);
-  size_t num_chunks = url_chunks->size();
-  size_t chunk_index = 0;
-  size_t url_size = url.size();
-
-  // Split the url across all the chunks.
-  for (size_t url_offset = 0;
-       chunk_index < num_chunks && url_offset < url_size; ++chunk_index) {
-    size_t current_chunk_size = std::min(url_size - url_offset,
-        static_cast<size_t>(
-            google_breakpad::CustomInfoEntry::kValueMaxLength - 1));
-    url._Copy_s((*url_chunks)[chunk_index],
-                google_breakpad::CustomInfoEntry::kValueMaxLength,
-                current_chunk_size, url_offset);
-    (*url_chunks)[chunk_index][current_chunk_size] = L'\0';
-    url_offset += current_chunk_size;
-  }
-
-  // And null terminate any unneeded chunks.
-  for (; chunk_index < num_chunks; ++chunk_index)
-    (*url_chunks)[chunk_index][0] = L'\0';
-}
-
-}  // namespace
-
-// This function is executed by the child process that DumpDoneCallback()
-// spawned and basically just shows the 'chrome has crashed' dialog if
-// the CHROME_CRASHED environment variable is present.
-bool ShowRestartDialogIfCrashed(bool* exit_now) {
-  if (!::GetEnvironmentVariableW(env_vars::kShowRestart, NULL, 0))
-    return false;
-
-  DWORD len = ::GetEnvironmentVariableW(env_vars::kRestartInfo, NULL, 0);
-  if (!len)
-    return true;
-
-  wchar_t* restart_data = new wchar_t[len + 1];
-  ::GetEnvironmentVariableW(env_vars::kRestartInfo, restart_data, len);
-  restart_data[len] = 0;
-  // The CHROME_RESTART var contains the dialog strings separated by '|'.
-  // See PrepareRestartOnCrashEnviroment() function for details.
-  std::vector<std::wstring> dlg_strings;
-  SplitString(restart_data, L'|', &dlg_strings);
-  delete[] restart_data;
-  if (dlg_strings.size() < 3)
-    return true;
-
-  // If the UI layout is right-to-left, we need to pass the appropriate MB_XXX
-  // flags so that an RTL message box is displayed.
-  UINT flags = MB_OKCANCEL | MB_ICONWARNING;
-  if (dlg_strings[2] == env_vars::kRtlLocale)
-    flags |= MB_RIGHT | MB_RTLREADING;
-
-  // Show the dialog now. It is ok if another chrome is started by the
-  // user since we have not initialized the databases.
-  *exit_now = (IDOK != ::MessageBoxW(NULL, dlg_strings[1].c_str(),
-                                     dlg_strings[0].c_str(), flags));
-  return true;
-}
-
-static DWORD __stdcall InitCrashReporterThread(void* param) {
-  CrashReporterInfo* info = reinterpret_cast<CrashReporterInfo*>(param);
-
-  // GetCustomInfo can take a few milliseconds to get the file information, so
-  // we do it here so it can run in a separate thread.
-  info->custom_info = GetCustomInfo(info->dll_path, info->process_type);
-
-  const CommandLine& command = *CommandLine::ForCurrentProcess();
-  bool full_dump = command.HasSwitch(switches::kFullMemoryCrashReport);
-  bool use_crash_service = command.HasSwitch(switches::kNoErrorDialogs) ||
-                           GetEnvironmentVariable(L"CHROME_HEADLESS", NULL, 0);
-
-  google_breakpad::ExceptionHandler::MinidumpCallback callback = NULL;
-
-  if (info->process_type == L"browser") {
-    // We install the post-dump callback only for the browser process. It
-    // spawns a new browser process.
-    callback = &DumpDoneCallback;
-  }
-
-  std::wstring pipe_name;
-  if (use_crash_service) {
-    // Crash reporting is done by crash_service.exe.
-    pipe_name = kChromePipeName;
-  } else {
-    // We want to use the Google Update crash reporting. We need to check if the
-    // user allows it first.
-    if (!GoogleUpdateSettings::GetCollectStatsConsent()) {
-      // The user did not allow Google Update to send crashes, we need to use
-      // our default crash handler instead, but only for the browser process.
-      if (callback)
-        InitDefaultCrashCallback();
-      return 0;
-    }
-
-    // Build the pipe name. It can be either:
-    // System-wide install: "NamedPipe\GoogleCrashServices\S-1-5-18"
-    // Per-user install: "NamedPipe\GoogleCrashServices\<user SID>"
-    std::wstring user_sid;
-    if (InstallUtil::IsPerUserInstall(info->dll_path.c_str())) {
-      if (!win_util::GetUserSidString(&user_sid)) {
-        delete info;
-        return -1;
-      }
-    } else {
-      user_sid = kSystemPrincipalSid;
-    }
-
-    pipe_name = kGoogleUpdatePipeName;
-    pipe_name += user_sid;
-  }
-
-  // Get the alternate dump directory. We use the temp path.
-  wchar_t temp_dir[MAX_PATH] = {0};
-  ::GetTempPathW(MAX_PATH, temp_dir);
-
-  MINIDUMP_TYPE dump_type = full_dump ? MiniDumpWithFullMemory : MiniDumpNormal;
-
-  g_breakpad = new google_breakpad::ExceptionHandler(temp_dir, NULL, callback,
-                   NULL, google_breakpad::ExceptionHandler::HANDLER_ALL,
-                   dump_type, pipe_name.c_str(), info->custom_info);
-
-  if (!g_breakpad->IsOutOfProcess()) {
-    // The out-of-process handler is unavailable.
-    ::SetEnvironmentVariable(env_vars::kNoOOBreakpad,
-                             info->process_type.c_str());
-  } else {
-    // Tells breakpad to handle breakpoint and single step exceptions.
-    // This might break JIT debuggers, but at least it will always
-    // generate a crashdump for these exceptions.
-    g_breakpad->set_handle_debug_exceptions(true);
-  }
-
-  delete info;
-  return 0;
-}
-
-void InitDefaultCrashCallback() {
-  previous_filter = SetUnhandledExceptionFilter(ChromeExceptionFilter);
-}
-
-void InitCrashReporter(const std::wstring& dll_path) {
-  const CommandLine& command = *CommandLine::ForCurrentProcess();
-  if (!command.HasSwitch(switches::kDisableBreakpad)) {
-    // Disable the message box for assertions.
-    _CrtSetReportMode(_CRT_ASSERT, 0);
-
-    // Query the custom_info now because if we do it in the thread it's going to
-    // fail in the sandbox. The thread will delete this object.
-    CrashReporterInfo* info = new CrashReporterInfo;
-    info->process_type = command.GetSwitchValue(switches::kProcessType);
-    if (info->process_type.empty())
-      info->process_type = L"browser";
-
-    info->dll_path = dll_path;
-
-    // If this is not the browser, we can't be sure that we will be able to
-    // initialize the crash_handler in another thread, so we run it right away.
-    // This is important to keep the thread for the browser process because
-    // it may take some times to initialize the crash_service process.  We use
-    // the Windows worker pool to make better reuse of the thread.
-    if (info->process_type != L"browser") {
-      InitCrashReporterThread(info);
-    } else {
-      if (QueueUserWorkItem(
-              &InitCrashReporterThread, info, WT_EXECUTELONGFUNCTION) == 0) {
-        // We failed to queue to the worker pool, initialize in this thread.
-        InitCrashReporterThread(info);
-      }
-    }
-  }
-}