| // Copyright 2015 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 "components/crash/content/app/crashpad.h" |
| |
| #include <stddef.h> |
| #include <string.h> |
| |
| #include <algorithm> |
| #include <map> |
| #include <vector> |
| |
| #include "base/auto_reset.h" |
| #include "base/base_paths.h" |
| #include "base/command_line.h" |
| #include "base/debug/crash_logging.h" |
| #include "base/debug/dump_without_crashing.h" |
| #include "base/logging.h" |
| #include "base/macros.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_piece.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/strings/sys_string_conversions.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "build/build_config.h" |
| #include "components/crash/content/app/crash_reporter_client.h" |
| #include "third_party/crashpad/crashpad/client/crash_report_database.h" |
| #include "third_party/crashpad/crashpad/client/crashpad_client.h" |
| #include "third_party/crashpad/crashpad/client/crashpad_info.h" |
| #include "third_party/crashpad/crashpad/client/settings.h" |
| #include "third_party/crashpad/crashpad/client/simple_string_dictionary.h" |
| #include "third_party/crashpad/crashpad/client/simulate_crash.h" |
| |
| #if defined(OS_POSIX) |
| #include <unistd.h> |
| #endif // OS_POSIX |
| |
| namespace crash_reporter { |
| |
| namespace { |
| |
| crashpad::SimpleStringDictionary* g_simple_string_dictionary; |
| crashpad::CrashReportDatabase* g_database; |
| |
| void SetCrashKeyValue(const base::StringPiece& key, |
| const base::StringPiece& value) { |
| g_simple_string_dictionary->SetKeyValue(key.data(), value.data()); |
| } |
| |
| void ClearCrashKey(const base::StringPiece& key) { |
| g_simple_string_dictionary->RemoveKey(key.data()); |
| } |
| |
| bool LogMessageHandler(int severity, |
| const char* file, |
| int line, |
| size_t message_start, |
| const std::string& string) { |
| // Only handle FATAL. |
| if (severity != logging::LOG_FATAL) { |
| return false; |
| } |
| |
| // In case of an out-of-memory condition, this code could be reentered when |
| // constructing and storing the key. Using a static is not thread-safe, but if |
| // multiple threads are in the process of a fatal crash at the same time, this |
| // should work. |
| static bool guarded = false; |
| if (guarded) { |
| return false; |
| } |
| base::AutoReset<bool> guard(&guarded, true); |
| |
| // Only log last path component. This matches logging.cc. |
| if (file) { |
| const char* slash = strrchr(file, '/'); |
| if (slash) { |
| file = slash + 1; |
| } |
| } |
| |
| CHECK_LE(message_start, string.size()); |
| std::string message = base::StringPrintf("%s:%d: %s", file, line, |
| string.c_str() + message_start); |
| SetCrashKeyValue("LOG_FATAL", message); |
| |
| // Rather than including the code to force the crash here, allow the caller to |
| // do it. |
| return false; |
| } |
| |
| void DumpWithoutCrashing() { |
| CRASHPAD_SIMULATE_CRASH(); |
| } |
| |
| void InitializeCrashpadImpl(bool initial_client, |
| const std::string& process_type, |
| bool embedded_handler) { |
| static bool initialized = false; |
| DCHECK(!initialized); |
| initialized = true; |
| |
| const bool browser_process = process_type.empty(); |
| CrashReporterClient* crash_reporter_client = GetCrashReporterClient(); |
| |
| if (initial_client) { |
| #if defined(OS_MACOSX) |
| // "relauncher" is hard-coded because it's a Chrome --type, but this |
| // component can't see Chrome's switches. This is only used for argument |
| // sanitization. |
| DCHECK(browser_process || process_type == "relauncher"); |
| #elif defined(OS_WIN) |
| // "Chrome Installer" is the name historically used for installer binaries |
| // as processed by the backend. |
| DCHECK(browser_process || process_type == "Chrome Installer"); |
| #else |
| #error Port. |
| #endif // OS_MACOSX |
| } else { |
| DCHECK(!browser_process); |
| } |
| |
| // database_path is only valid in the browser process. |
| base::FilePath database_path = internal::PlatformCrashpadInitialization( |
| initial_client, browser_process, embedded_handler); |
| |
| crashpad::CrashpadInfo* crashpad_info = |
| crashpad::CrashpadInfo::GetCrashpadInfo(); |
| |
| #if defined(OS_MACOSX) |
| #if defined(NDEBUG) |
| const bool is_debug_build = false; |
| #else |
| const bool is_debug_build = true; |
| #endif |
| |
| // Disable forwarding to the system's crash reporter in processes other than |
| // the browser process. For the browser, the system's crash reporter presents |
| // the crash UI to the user, so it's desirable there. Additionally, having |
| // crash reports appear in ~/Library/Logs/DiagnosticReports provides a |
| // fallback. Forwarding is turned off for debug-mode builds even for the |
| // browser process, because the system's crash reporter can take a very long |
| // time to chew on symbols. |
| if (!browser_process || is_debug_build) { |
| crashpad_info->set_system_crash_reporter_forwarding( |
| crashpad::TriState::kDisabled); |
| } |
| #endif // OS_MACOSX |
| |
| g_simple_string_dictionary = new crashpad::SimpleStringDictionary(); |
| crashpad_info->set_simple_annotations(g_simple_string_dictionary); |
| |
| // On Windows chrome_elf registers crash keys. This should work identically |
| // for component and non component builds. |
| base::debug::SetCrashKeyReportingFunctions(SetCrashKeyValue, ClearCrashKey); |
| crash_reporter_client->RegisterCrashKeys(); |
| |
| SetCrashKeyValue("ptype", browser_process ? base::StringPiece("browser") |
| : base::StringPiece(process_type)); |
| #if defined(OS_POSIX) |
| SetCrashKeyValue("pid", base::IntToString(getpid())); |
| #elif defined(OS_WIN) |
| SetCrashKeyValue("pid", base::IntToString(::GetCurrentProcessId())); |
| #endif |
| |
| logging::SetLogMessageHandler(LogMessageHandler); |
| |
| // If clients called CRASHPAD_SIMULATE_CRASH() instead of |
| // base::debug::DumpWithoutCrashing(), these dumps would appear as crashes in |
| // the correct function, at the correct file and line. This would be |
| // preferable to having all occurrences show up in DumpWithoutCrashing() at |
| // the same file and line. |
| base::debug::SetDumpWithoutCrashingFunction(DumpWithoutCrashing); |
| |
| #if defined(OS_MACOSX) |
| // On Mac, we only want the browser to initialize the database, but not the |
| // relauncher. |
| const bool should_initialize_database_and_set_upload_policy = browser_process; |
| #elif defined(OS_WIN) |
| // On Windows, we want both the browser process and the installer and any |
| // other "main, first process" to initialize things. There is no "relauncher" |
| // on Windows, so this is synonymous with initial_client. |
| const bool should_initialize_database_and_set_upload_policy = initial_client; |
| #endif |
| if (should_initialize_database_and_set_upload_policy) { |
| g_database = |
| crashpad::CrashReportDatabase::Initialize(database_path).release(); |
| |
| SetUploadConsent(crash_reporter_client->GetCollectStatsConsent()); |
| } |
| } |
| |
| } // namespace |
| |
| void InitializeCrashpad(bool initial_client, const std::string& process_type) { |
| InitializeCrashpadImpl(initial_client, process_type, false); |
| } |
| |
| #if defined(OS_WIN) |
| void InitializeCrashpadWithEmbeddedHandler(bool initial_client, |
| const std::string& process_type) { |
| InitializeCrashpadImpl(initial_client, process_type, true); |
| } |
| #endif // OS_WIN |
| |
| void SetUploadConsent(bool consent) { |
| if (!g_database) |
| return; |
| |
| bool enable_uploads = false; |
| CrashReporterClient* crash_reporter_client = GetCrashReporterClient(); |
| if (!crash_reporter_client->ReportingIsEnforcedByPolicy(&enable_uploads)) { |
| // Breakpad provided a --disable-breakpad switch to disable crash dumping |
| // (not just uploading) here. Crashpad doesn't need it: dumping is enabled |
| // unconditionally and uploading is gated on consent, which tests/bots |
| // shouldn't have. As a precaution, uploading is also disabled on bots even |
| // if consent is present. |
| enable_uploads = consent && !crash_reporter_client->IsRunningUnattended(); |
| } |
| |
| crashpad::Settings* settings = g_database->GetSettings(); |
| settings->SetUploadsEnabled(enable_uploads && |
| crash_reporter_client->GetCollectStatsInSample()); |
| } |
| |
| bool GetUploadsEnabled() { |
| if (g_database) { |
| crashpad::Settings* settings = g_database->GetSettings(); |
| bool enable_uploads; |
| if (settings->GetUploadsEnabled(&enable_uploads)) { |
| return enable_uploads; |
| } |
| } |
| |
| return false; |
| } |
| |
| void GetReports(std::vector<Report>* reports) { |
| reports->clear(); |
| |
| if (!g_database) { |
| return; |
| } |
| |
| std::vector<crashpad::CrashReportDatabase::Report> completed_reports; |
| crashpad::CrashReportDatabase::OperationStatus status = |
| g_database->GetCompletedReports(&completed_reports); |
| if (status != crashpad::CrashReportDatabase::kNoError) { |
| return; |
| } |
| |
| std::vector<crashpad::CrashReportDatabase::Report> pending_reports; |
| status = g_database->GetPendingReports(&pending_reports); |
| if (status != crashpad::CrashReportDatabase::kNoError) { |
| return; |
| } |
| |
| for (const crashpad::CrashReportDatabase::Report& completed_report : |
| completed_reports) { |
| Report report; |
| report.local_id = completed_report.uuid.ToString(); |
| report.capture_time = completed_report.creation_time; |
| report.remote_id = completed_report.id; |
| if (completed_report.uploaded) { |
| report.upload_time = completed_report.last_upload_attempt_time; |
| report.state = ReportUploadState::Uploaded; |
| } else { |
| report.upload_time = 0; |
| report.state = ReportUploadState::NotUploaded; |
| } |
| reports->push_back(report); |
| } |
| |
| for (const crashpad::CrashReportDatabase::Report& pending_report : |
| pending_reports) { |
| Report report; |
| report.local_id = pending_report.uuid.ToString(); |
| report.capture_time = pending_report.creation_time; |
| report.upload_time = 0; |
| report.state = pending_report.upload_explicitly_requested |
| ? ReportUploadState::Pending_UserRequested |
| : report.state = ReportUploadState::Pending; |
| reports->push_back(report); |
| } |
| |
| std::sort(reports->begin(), reports->end(), |
| [](const Report& a, const Report& b) { |
| return a.capture_time > b.capture_time; |
| }); |
| } |
| |
| void RequestSingleCrashUpload(const std::string& local_id) { |
| if (!g_database) |
| return; |
| crashpad::UUID uuid; |
| uuid.InitializeFromString(local_id); |
| g_database->RequestUpload(uuid); |
| } |
| |
| } // namespace crash_reporter |
| |
| #if defined(OS_WIN) |
| |
| extern "C" { |
| |
| // This function is used in chrome_metrics_services_manager_client.cc to trigger |
| // changes to the upload-enabled state. This is done when the metrics services |
| // are initialized, and when the user changes their consent for uploads. See |
| // crash_reporter::SetUploadConsent for effects. The given consent value should |
| // be consistent with |
| // crash_reporter::GetCrashReporterClient()->GetCollectStatsConsent(), but it's |
| // not enforced to avoid blocking startup code on synchronizing them. |
| void __declspec(dllexport) __cdecl SetUploadConsentImpl(bool consent) { |
| crash_reporter::SetUploadConsent(consent); |
| } |
| |
| // NOTE: This function is used by SyzyASAN to annotate crash reports. If you |
| // change the name or signature of this function you will break SyzyASAN |
| // instrumented releases of Chrome. Please contact syzygy-team@chromium.org |
| // before doing so! See also http://crbug.com/567781. |
| void __declspec(dllexport) __cdecl SetCrashKeyValueImpl(const wchar_t* key, |
| const wchar_t* value) { |
| crash_reporter::SetCrashKeyValue(base::UTF16ToUTF8(key), |
| base::UTF16ToUTF8(value)); |
| } |
| |
| void __declspec(dllexport) __cdecl ClearCrashKeyValueImpl(const wchar_t* key) { |
| crash_reporter::ClearCrashKey(base::UTF16ToUTF8(key)); |
| } |
| |
| // This helper is invoked by code in chrome.dll to request a single crash report |
| // upload. See CrashUploadListCrashpad. |
| void __declspec(dllexport) |
| RequestSingleCrashUploadImpl(const std::string& local_id) { |
| crash_reporter::RequestSingleCrashUpload(local_id); |
| } |
| |
| // This helper is invoked by code in chrome.dll to wait for the handler start to |
| // complete. |
| void __declspec(dllexport) BlockUntilHandlerStartedImpl() { |
| crash_reporter::BlockUntilHandlerStarted(); |
| } |
| |
| } // extern "C" |
| |
| #endif // OS_WIN |