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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 "components/crash/content/app/crashpad.h" | 5 #include "components/crash/content/app/crashpad.h" |
6 | 6 |
7 #include <memory> | 7 #include <memory> |
8 | 8 |
9 #include "base/debug/crash_logging.h" | 9 #include "base/debug/crash_logging.h" |
10 #include "base/environment.h" | 10 #include "base/environment.h" |
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111 arguments.push_back(std::string("--type=") + switches::kCrashpadHandler); | 111 arguments.push_back(std::string("--type=") + switches::kCrashpadHandler); |
112 // The prefetch argument added here has to be documented in | 112 // The prefetch argument added here has to be documented in |
113 // chrome_switches.cc, below the kPrefetchArgument* constants. A constant | 113 // chrome_switches.cc, below the kPrefetchArgument* constants. A constant |
114 // can't be used here because crashpad can't depend on Chrome. | 114 // can't be used here because crashpad can't depend on Chrome. |
115 arguments.push_back("/prefetch:7"); | 115 arguments.push_back("/prefetch:7"); |
116 } else { | 116 } else { |
117 base::FilePath exe_dir = exe_file.DirName(); | 117 base::FilePath exe_dir = exe_file.DirName(); |
118 exe_file = exe_dir.Append(FILE_PATH_LITERAL("crashpad_handler.exe")); | 118 exe_file = exe_dir.Append(FILE_PATH_LITERAL("crashpad_handler.exe")); |
119 } | 119 } |
120 | 120 |
121 g_crashpad_client.Get().StartHandler( | 121 if (!g_crashpad_client.Get().StartHandler( |
122 exe_file, database_path, metrics_path, url, process_annotations, | 122 exe_file, database_path, metrics_path, url, process_annotations, |
123 arguments, false, false); | 123 arguments, false, true)) { |
| 124 // This means that CreateThread() failed, so this process is very messed |
| 125 // up. This should be effectively unreachable. Note that if this is |
| 126 // converted to non-fatal, calls to BlockUntilHandlerStarted() will have |
| 127 // to be amended. |
| 128 LOG(FATAL) << "synchronous part of handler startup failed"; |
| 129 } |
124 | 130 |
125 // If we're the browser, push the pipe name into the environment so child | 131 // If we're the browser, push the pipe name into the environment so child |
126 // processes can connect to it. If we inherited another crashpad_handler's | 132 // processes can connect to it. If we inherited another crashpad_handler's |
127 // pipe name, we'll overwrite it here. | 133 // pipe name, we'll overwrite it here. |
128 env->SetVar(kPipeNameVar, | 134 env->SetVar(kPipeNameVar, |
129 base::UTF16ToUTF8(g_crashpad_client.Get().GetHandlerIPCPipe())); | 135 base::UTF16ToUTF8(g_crashpad_client.Get().GetHandlerIPCPipe())); |
130 } else { | 136 } else { |
131 std::string pipe_name_utf8; | 137 std::string pipe_name_utf8; |
132 if (env->GetVar(kPipeNameVar, &pipe_name_utf8)) { | 138 if (env->GetVar(kPipeNameVar, &pipe_name_utf8)) { |
133 g_crashpad_client.Get().SetHandlerIPCPipe( | 139 g_crashpad_client.Get().SetHandlerIPCPipe( |
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201 VLOG(1) << "dumped for hang debugging"; | 207 VLOG(1) << "dumped for hang debugging"; |
202 return 0; | 208 return 0; |
203 } | 209 } |
204 | 210 |
205 MSVC_POP_WARNING() | 211 MSVC_POP_WARNING() |
206 MSVC_ENABLE_OPTIMIZE() | 212 MSVC_ENABLE_OPTIMIZE() |
207 | 213 |
208 } // namespace | 214 } // namespace |
209 | 215 |
210 } // namespace internal | 216 } // namespace internal |
| 217 |
| 218 void BlockUntilHandlerStarted() { |
| 219 // We know that the StartHandler() at least started asynchronous startup if |
| 220 // we're here, as if it doesn't, we abort. |
| 221 if (!internal::g_crashpad_client.Get().WaitForHandlerStart()) { |
| 222 LOG(ERROR) << "Crashpad handler failed to start, crash reporting disabled"; |
| 223 } |
| 224 } |
| 225 |
211 } // namespace crash_reporter | 226 } // namespace crash_reporter |
212 | 227 |
213 extern "C" { | 228 extern "C" { |
214 | 229 |
215 // Crashes the process after generating a dump for the provided exception. Note | 230 // Crashes the process after generating a dump for the provided exception. Note |
216 // that the crash reporter should be initialized before calling this function | 231 // that the crash reporter should be initialized before calling this function |
217 // for it to do anything. | 232 // for it to do anything. |
218 // NOTE: This function is used by SyzyASAN to invoke a crash. If you change the | 233 // NOTE: This function is used by SyzyASAN to invoke a crash. If you change the |
219 // the name or signature of this function you will break SyzyASAN instrumented | 234 // the name or signature of this function you will break SyzyASAN instrumented |
220 // releases of Chrome. Please contact syzygy-team@chromium.org before doing so! | 235 // releases of Chrome. Please contact syzygy-team@chromium.org before doing so! |
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343 void __declspec(dllexport) __cdecl UnregisterNonABICompliantCodeRange( | 358 void __declspec(dllexport) __cdecl UnregisterNonABICompliantCodeRange( |
344 void* start) { | 359 void* start) { |
345 ExceptionHandlerRecord* record = | 360 ExceptionHandlerRecord* record = |
346 reinterpret_cast<ExceptionHandlerRecord*>(start); | 361 reinterpret_cast<ExceptionHandlerRecord*>(start); |
347 | 362 |
348 CHECK(RtlDeleteFunctionTable(&record->runtime_function)); | 363 CHECK(RtlDeleteFunctionTable(&record->runtime_function)); |
349 } | 364 } |
350 #endif // ARCH_CPU_X86_64 | 365 #endif // ARCH_CPU_X86_64 |
351 | 366 |
352 } // extern "C" | 367 } // extern "C" |
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