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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // For linux_syscall_support.h. This makes it safe to call embedded system | |
| 6 // calls when in seccomp mode. | |
| 7 #define SYS_SYSCALL_ENTRYPOINT "playground$syscallEntryPoint" | |
| 8 | |
| 9 #include "chrome/app/breakpad_linux.h" | |
| 10 | |
| 11 #include <fcntl.h> | |
| 12 #include <poll.h> | |
| 13 #include <stdlib.h> | |
| 14 #include <sys/socket.h> | |
| 15 #include <sys/time.h> | |
| 16 #include <sys/types.h> | |
| 17 #include <sys/wait.h> | |
| 18 #include <sys/uio.h> | |
| 19 #include <time.h> | |
| 20 #include <unistd.h> | |
| 21 | |
| 22 #include <algorithm> | |
| 23 #include <string> | |
| 24 | |
| 25 #include "base/command_line.h" | |
| 26 #include "base/eintr_wrapper.h" | |
| 27 #include "base/file_path.h" | |
| 28 #include "base/global_descriptors_posix.h" | |
| 29 #include "base/linux_util.h" | |
| 30 #include "base/path_service.h" | |
| 31 #include "base/process_util.h" | |
| 32 #include "base/string_util.h" | |
| 33 #include "breakpad/src/client/linux/handler/exception_handler.h" | |
| 34 #include "breakpad/src/client/linux/minidump_writer/directory_reader.h" | |
| 35 #include "breakpad/src/common/linux/linux_libc_support.h" | |
| 36 #include "breakpad/src/common/memory.h" | |
| 37 #include "chrome/browser/crash_upload_list.h" | |
| 38 #include "chrome/common/child_process_logging.h" | |
| 39 #include "chrome/common/chrome_paths.h" | |
| 40 #include "chrome/common/chrome_switches.h" | |
| 41 #include "chrome/common/chrome_version_info_posix.h" | |
| 42 #include "chrome/common/env_vars.h" | |
| 43 #include "chrome/common/logging_chrome.h" | |
| 44 #include "content/common/chrome_descriptors.h" | |
| 45 #include "seccompsandbox/linux_syscall_support.h" | |
| 46 | |
| 47 #ifndef PR_SET_PTRACER | |
| 48 #define PR_SET_PTRACER 0x59616d61 | |
| 49 #endif | |
| 50 | |
| 51 // Some versions of gcc are prone to warn about unused return values. In cases | |
| 52 // where we either a) know the call cannot fail, or b) there is nothing we | |
| 53 // can do when a call fails, we mark the return code as ignored. This avoids | |
| 54 // spurious compiler warnings. | |
| 55 #define IGNORE_RET(x) do { if (x); } while (0) | |
| 56 | |
| 57 static const char kUploadURL[] = | |
| 58 "https://clients2.google.com/cr/report"; | |
| 59 | |
| 60 static bool g_is_crash_reporter_enabled = false; | |
| 61 static uint64_t g_process_start_time = 0; | |
| 62 static char* g_crash_log_path = NULL; | |
| 63 static google_breakpad::ExceptionHandler* g_breakpad = NULL; | |
| 64 | |
| 65 // Writes the value |v| as 16 hex characters to the memory pointed at by | |
| 66 // |output|. | |
| 67 static void write_uint64_hex(char* output, uint64_t v) { | |
| 68 static const char hextable[] = "0123456789abcdef"; | |
| 69 | |
| 70 for (int i = 15; i >= 0; --i) { | |
| 71 output[i] = hextable[v & 15]; | |
| 72 v >>= 4; | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 // The following helper functions are for calculating uptime. | |
| 77 | |
| 78 // Converts a struct timeval to milliseconds. | |
| 79 static uint64_t timeval_to_ms(struct timeval *tv) { | |
| 80 uint64_t ret = tv->tv_sec; // Avoid overflow by explicitly using a uint64_t. | |
| 81 ret *= 1000; | |
| 82 ret += tv->tv_usec / 1000; | |
| 83 return ret; | |
| 84 } | |
| 85 | |
| 86 // Converts a struct timeval to milliseconds. | |
| 87 static uint64_t kernel_timeval_to_ms(struct kernel_timeval *tv) { | |
| 88 uint64_t ret = tv->tv_sec; // Avoid overflow by explicitly using a uint64_t. | |
| 89 ret *= 1000; | |
| 90 ret += tv->tv_usec / 1000; | |
| 91 return ret; | |
| 92 } | |
| 93 | |
| 94 // String buffer size to use to convert a uint64_t to string. | |
| 95 static size_t kUint64StringSize = 21; | |
| 96 | |
| 97 // uint64_t version of my_int_len() from | |
| 98 // breakpad/src/common/linux/linux_libc_support.h. Return the length of the | |
| 99 // given, non-negative integer when expressed in base 10. | |
| 100 static unsigned my_uint64_len(uint64_t i) { | |
| 101 if (!i) | |
| 102 return 1; | |
| 103 | |
| 104 unsigned len = 0; | |
| 105 while (i) { | |
| 106 len++; | |
| 107 i /= 10; | |
| 108 } | |
| 109 | |
| 110 return len; | |
| 111 } | |
| 112 | |
| 113 // uint64_t version of my_itos() from | |
| 114 // breakpad/src/common/linux/linux_libc_support.h. Convert a non-negative | |
| 115 // integer to a string (not null-terminated). | |
| 116 static void my_uint64tos(char* output, uint64_t i, unsigned i_len) { | |
| 117 for (unsigned index = i_len; index; --index, i /= 10) | |
| 118 output[index - 1] = '0' + (i % 10); | |
| 119 } | |
| 120 | |
| 121 namespace { | |
| 122 | |
| 123 // MIME substrings. | |
| 124 static const char g_rn[] = "\r\n"; | |
| 125 static const char g_form_data_msg[] = "Content-Disposition: form-data; name=\""; | |
| 126 static const char g_quote_msg[] = "\""; | |
| 127 static const char g_dashdash_msg[] = "--"; | |
| 128 static const char g_dump_msg[] = "upload_file_minidump\"; filename=\"dump\""; | |
| 129 static const char g_content_type_msg[] = | |
| 130 "Content-Type: application/octet-stream"; | |
| 131 | |
| 132 // MimeWriter manages an iovec for writing MIMEs to a file. | |
| 133 class MimeWriter { | |
| 134 public: | |
| 135 static const int kIovCapacity = 30; | |
| 136 static const size_t kMaxCrashChunkSize = 64; | |
| 137 | |
| 138 MimeWriter(int fd, const char* const mime_boundary); | |
| 139 ~MimeWriter(); | |
| 140 | |
| 141 // Append boundary. | |
| 142 void AddBoundary(); | |
| 143 | |
| 144 // Append end of file boundary. | |
| 145 void AddEnd(); | |
| 146 | |
| 147 // Append key/value pair with specified sizes. | |
| 148 void AddPairData(const char* msg_type, | |
| 149 size_t msg_type_size, | |
| 150 const char* msg_data, | |
| 151 size_t msg_data_size); | |
| 152 | |
| 153 // Append key/value pair. | |
| 154 void AddPairString(const char* msg_type, | |
| 155 const char* msg_data) { | |
| 156 AddPairData(msg_type, my_strlen(msg_type), msg_data, my_strlen(msg_data)); | |
| 157 } | |
| 158 | |
| 159 // Append key/value pair, splitting value into chunks no larger than | |
| 160 // |chunk_size|. |chunk_size| cannot be greater than |kMaxCrashChunkSize|. | |
| 161 // The msg_type string will have a counter suffix to distinguish each chunk. | |
| 162 void AddPairDataInChunks(const char* msg_type, | |
| 163 size_t msg_type_size, | |
| 164 const char* msg_data, | |
| 165 size_t msg_data_size, | |
| 166 size_t chunk_size, | |
| 167 bool strip_trailing_spaces); | |
| 168 | |
| 169 // Add binary file dump. Currently this is only done once, so the name is | |
| 170 // fixed. | |
| 171 void AddFileDump(uint8_t* file_data, | |
| 172 size_t file_size); | |
| 173 | |
| 174 // Flush any pending iovecs to the output file. | |
| 175 void Flush() { | |
| 176 IGNORE_RET(sys_writev(fd_, iov_, iov_index_)); | |
| 177 iov_index_ = 0; | |
| 178 } | |
| 179 | |
| 180 private: | |
| 181 void AddItem(const void* base, size_t size); | |
| 182 // Minor performance trade-off for easier-to-maintain code. | |
| 183 void AddString(const char* str) { | |
| 184 AddItem(str, my_strlen(str)); | |
| 185 } | |
| 186 void AddItemWithoutTrailingSpaces(const void* base, size_t size); | |
| 187 | |
| 188 struct kernel_iovec iov_[kIovCapacity]; | |
| 189 int iov_index_; | |
| 190 | |
| 191 // Output file descriptor. | |
| 192 int fd_; | |
| 193 | |
| 194 const char* const mime_boundary_; | |
| 195 | |
| 196 DISALLOW_COPY_AND_ASSIGN(MimeWriter); | |
| 197 }; | |
| 198 | |
| 199 MimeWriter::MimeWriter(int fd, const char* const mime_boundary) | |
| 200 : iov_index_(0), | |
| 201 fd_(fd), | |
| 202 mime_boundary_(mime_boundary) { | |
| 203 } | |
| 204 | |
| 205 MimeWriter::~MimeWriter() { | |
| 206 } | |
| 207 | |
| 208 void MimeWriter::AddBoundary() { | |
| 209 AddString(mime_boundary_); | |
| 210 AddString(g_rn); | |
| 211 } | |
| 212 | |
| 213 void MimeWriter::AddEnd() { | |
| 214 AddString(mime_boundary_); | |
| 215 AddString(g_dashdash_msg); | |
| 216 AddString(g_rn); | |
| 217 } | |
| 218 | |
| 219 void MimeWriter::AddPairData(const char* msg_type, | |
| 220 size_t msg_type_size, | |
| 221 const char* msg_data, | |
| 222 size_t msg_data_size) { | |
| 223 AddString(g_form_data_msg); | |
| 224 AddItem(msg_type, msg_type_size); | |
| 225 AddString(g_quote_msg); | |
| 226 AddString(g_rn); | |
| 227 AddString(g_rn); | |
| 228 AddItem(msg_data, msg_data_size); | |
| 229 AddString(g_rn); | |
| 230 } | |
| 231 | |
| 232 void MimeWriter::AddPairDataInChunks(const char* msg_type, | |
| 233 size_t msg_type_size, | |
| 234 const char* msg_data, | |
| 235 size_t msg_data_size, | |
| 236 size_t chunk_size, | |
| 237 bool strip_trailing_spaces) { | |
| 238 if (chunk_size > kMaxCrashChunkSize) | |
| 239 return; | |
| 240 | |
| 241 unsigned i = 0; | |
| 242 size_t done = 0, msg_length = msg_data_size; | |
| 243 | |
| 244 while (msg_length) { | |
| 245 char num[16]; | |
| 246 const unsigned num_len = my_int_len(++i); | |
| 247 my_itos(num, i, num_len); | |
| 248 | |
| 249 size_t chunk_len = std::min(chunk_size, msg_length); | |
| 250 | |
| 251 AddString(g_form_data_msg); | |
| 252 AddItem(msg_type, msg_type_size); | |
| 253 AddItem(num, num_len); | |
| 254 AddString(g_quote_msg); | |
| 255 AddString(g_rn); | |
| 256 AddString(g_rn); | |
| 257 if (strip_trailing_spaces) { | |
| 258 AddItemWithoutTrailingSpaces(msg_data + done, chunk_len); | |
| 259 } else { | |
| 260 AddItem(msg_data + done, chunk_len); | |
| 261 } | |
| 262 AddString(g_rn); | |
| 263 AddBoundary(); | |
| 264 Flush(); | |
| 265 | |
| 266 done += chunk_len; | |
| 267 msg_length -= chunk_len; | |
| 268 } | |
| 269 } | |
| 270 | |
| 271 void MimeWriter::AddFileDump(uint8_t* file_data, | |
| 272 size_t file_size) { | |
| 273 AddString(g_form_data_msg); | |
| 274 AddString(g_dump_msg); | |
| 275 AddString(g_rn); | |
| 276 AddString(g_content_type_msg); | |
| 277 AddString(g_rn); | |
| 278 AddString(g_rn); | |
| 279 AddItem(file_data, file_size); | |
| 280 AddString(g_rn); | |
| 281 } | |
| 282 | |
| 283 void MimeWriter::AddItem(const void* base, size_t size) { | |
| 284 // Check if the iovec is full and needs to be flushed to output file. | |
| 285 if (iov_index_ == kIovCapacity) { | |
| 286 Flush(); | |
| 287 } | |
| 288 iov_[iov_index_].iov_base = const_cast<void*>(base); | |
| 289 iov_[iov_index_].iov_len = size; | |
| 290 ++iov_index_; | |
| 291 } | |
| 292 | |
| 293 void MimeWriter::AddItemWithoutTrailingSpaces(const void* base, size_t size) { | |
| 294 while (size > 0) { | |
| 295 const char* c = static_cast<const char*>(base) + size - 1; | |
| 296 if (*c != ' ') | |
| 297 break; | |
| 298 size--; | |
| 299 } | |
| 300 AddItem(base, size); | |
| 301 } | |
| 302 | |
| 303 void DumpProcess() { | |
| 304 if (g_breakpad) | |
| 305 g_breakpad->WriteMinidump(); | |
| 306 } | |
| 307 | |
| 308 } // namespace | |
| 309 | |
| 310 void HandleCrashDump(const BreakpadInfo& info) { | |
| 311 // WARNING: this code runs in a compromised context. It may not call into | |
| 312 // libc nor allocate memory normally. | |
| 313 | |
| 314 const int dumpfd = sys_open(info.filename, O_RDONLY, 0); | |
| 315 if (dumpfd < 0) { | |
| 316 static const char msg[] = "Cannot upload crash dump: failed to open\n"; | |
| 317 sys_write(2, msg, sizeof(msg)); | |
| 318 return; | |
| 319 } | |
| 320 struct kernel_stat st; | |
| 321 if (sys_fstat(dumpfd, &st) != 0) { | |
| 322 static const char msg[] = "Cannot upload crash dump: stat failed\n"; | |
| 323 sys_write(2, msg, sizeof(msg)); | |
| 324 IGNORE_RET(sys_close(dumpfd)); | |
| 325 return; | |
| 326 } | |
| 327 | |
| 328 google_breakpad::PageAllocator allocator; | |
| 329 | |
| 330 uint8_t* dump_data = reinterpret_cast<uint8_t*>(allocator.Alloc(st.st_size)); | |
| 331 if (!dump_data) { | |
| 332 static const char msg[] = "Cannot upload crash dump: cannot alloc\n"; | |
| 333 sys_write(2, msg, sizeof(msg)); | |
| 334 IGNORE_RET(sys_close(dumpfd)); | |
| 335 return; | |
| 336 } | |
| 337 | |
| 338 sys_read(dumpfd, dump_data, st.st_size); | |
| 339 IGNORE_RET(sys_close(dumpfd)); | |
| 340 | |
| 341 // We need to build a MIME block for uploading to the server. Since we are | |
| 342 // going to fork and run wget, it needs to be written to a temp file. | |
| 343 | |
| 344 const int ufd = sys_open("/dev/urandom", O_RDONLY, 0); | |
| 345 if (ufd < 0) { | |
| 346 static const char msg[] = "Cannot upload crash dump because /dev/urandom" | |
| 347 " is missing\n"; | |
| 348 sys_write(2, msg, sizeof(msg) - 1); | |
| 349 return; | |
| 350 } | |
| 351 | |
| 352 static const char temp_file_template[] = | |
| 353 "/tmp/chromium-upload-XXXXXXXXXXXXXXXX"; | |
| 354 char temp_file[sizeof(temp_file_template)]; | |
| 355 int temp_file_fd = -1; | |
| 356 if (info.upload) { | |
| 357 memcpy(temp_file, temp_file_template, sizeof(temp_file_template)); | |
| 358 | |
| 359 for (unsigned i = 0; i < 10; ++i) { | |
| 360 uint64_t t; | |
| 361 sys_read(ufd, &t, sizeof(t)); | |
| 362 write_uint64_hex(temp_file + sizeof(temp_file) - (16 + 1), t); | |
| 363 | |
| 364 temp_file_fd = sys_open(temp_file, O_WRONLY | O_CREAT | O_EXCL, 0600); | |
| 365 if (temp_file_fd >= 0) | |
| 366 break; | |
| 367 } | |
| 368 | |
| 369 if (temp_file_fd < 0) { | |
| 370 static const char msg[] = "Failed to create temporary file in /tmp: " | |
| 371 "cannot upload crash dump\n"; | |
| 372 sys_write(2, msg, sizeof(msg) - 1); | |
| 373 IGNORE_RET(sys_close(ufd)); | |
| 374 return; | |
| 375 } | |
| 376 } else { | |
| 377 temp_file_fd = sys_open(info.filename, O_WRONLY, 0600); | |
| 378 if (temp_file_fd < 0) { | |
| 379 static const char msg[] = "Failed to save crash dump: failed to open\n"; | |
| 380 sys_write(2, msg, sizeof(msg) - 1); | |
| 381 IGNORE_RET(sys_close(ufd)); | |
| 382 return; | |
| 383 } | |
| 384 } | |
| 385 | |
| 386 // The MIME boundary is 28 hyphens, followed by a 64-bit nonce and a NUL. | |
| 387 char mime_boundary[28 + 16 + 1]; | |
| 388 my_memset(mime_boundary, '-', 28); | |
| 389 uint64_t boundary_rand; | |
| 390 sys_read(ufd, &boundary_rand, sizeof(boundary_rand)); | |
| 391 write_uint64_hex(mime_boundary + 28, boundary_rand); | |
| 392 mime_boundary[28 + 16] = 0; | |
| 393 IGNORE_RET(sys_close(ufd)); | |
| 394 | |
| 395 // The MIME block looks like this: | |
| 396 // BOUNDARY \r\n | |
| 397 // Content-Disposition: form-data; name="prod" \r\n \r\n | |
| 398 // Chrome_Linux \r\n | |
| 399 // BOUNDARY \r\n | |
| 400 // Content-Disposition: form-data; name="ver" \r\n \r\n | |
| 401 // 1.2.3.4 \r\n | |
| 402 // BOUNDARY \r\n | |
| 403 // Content-Disposition: form-data; name="guid" \r\n \r\n | |
| 404 // 1.2.3.4 \r\n | |
| 405 // BOUNDARY \r\n | |
| 406 // | |
| 407 // zero or one: | |
| 408 // Content-Disposition: form-data; name="ptime" \r\n \r\n | |
| 409 // abcdef \r\n | |
| 410 // BOUNDARY \r\n | |
| 411 // | |
| 412 // zero or one: | |
| 413 // Content-Disposition: form-data; name="ptype" \r\n \r\n | |
| 414 // abcdef \r\n | |
| 415 // BOUNDARY \r\n | |
| 416 // | |
| 417 // zero or more gpu entries: | |
| 418 // Content-Disposition: form-data; name="gpu-xxxxx" \r\n \r\n | |
| 419 // <gpu-xxxxx> \r\n | |
| 420 // BOUNDARY \r\n | |
| 421 // | |
| 422 // zero or one: | |
| 423 // Content-Disposition: form-data; name="lsb-release" \r\n \r\n | |
| 424 // abcdef \r\n | |
| 425 // BOUNDARY \r\n | |
| 426 // | |
| 427 // zero or more: | |
| 428 // Content-Disposition: form-data; name="url-chunk-1" \r\n \r\n | |
| 429 // abcdef \r\n | |
| 430 // BOUNDARY \r\n | |
| 431 // | |
| 432 // zero or one: | |
| 433 // Content-Disposition: form-data; name="channel" \r\n \r\n | |
| 434 // beta \r\n | |
| 435 // BOUNDARY \r\n | |
| 436 // | |
| 437 // zero or one: | |
| 438 // Content-Disposition: form-data; name="num-views" \r\n \r\n | |
| 439 // 3 \r\n | |
| 440 // BOUNDARY \r\n | |
| 441 // | |
| 442 // zero or one: | |
| 443 // Content-Disposition: form-data; name="num-extensions" \r\n \r\n | |
| 444 // 5 \r\n | |
| 445 // BOUNDARY \r\n | |
| 446 // | |
| 447 // zero to 10: | |
| 448 // Content-Disposition: form-data; name="extension-1" \r\n \r\n | |
| 449 // abcdefghijklmnopqrstuvwxyzabcdef \r\n | |
| 450 // BOUNDARY \r\n | |
| 451 // | |
| 452 // zero to 4: | |
| 453 // Content-Disposition: form-data; name="prn-info-1" \r\n \r\n | |
| 454 // abcdefghijklmnopqrstuvwxyzabcdef \r\n | |
| 455 // BOUNDARY \r\n | |
| 456 // | |
| 457 // zero or one: | |
| 458 // Content-Disposition: form-data; name="num-switches" \r\n \r\n | |
| 459 // 5 \r\n | |
| 460 // BOUNDARY \r\n | |
| 461 // | |
| 462 // zero to 15: | |
| 463 // Content-Disposition: form-data; name="switch-1" \r\n \r\n | |
| 464 // --foo \r\n | |
| 465 // BOUNDARY \r\n | |
| 466 // | |
| 467 // zero or one: | |
| 468 // Content-Disposition: form-data; name="oom-size" \r\n \r\n | |
| 469 // 1234567890 \r\n | |
| 470 // BOUNDARY \r\n | |
| 471 // | |
| 472 // Content-Disposition: form-data; name="dump"; filename="dump" \r\n | |
| 473 // Content-Type: application/octet-stream \r\n \r\n | |
| 474 // <dump contents> | |
| 475 // \r\n BOUNDARY -- \r\n | |
| 476 | |
| 477 MimeWriter writer(temp_file_fd, mime_boundary); | |
| 478 { | |
| 479 #if defined(OS_CHROMEOS) | |
| 480 static const char chrome_product_msg[] = "Chrome_ChromeOS"; | |
| 481 #else // OS_LINUX | |
| 482 static const char chrome_product_msg[] = "Chrome_Linux"; | |
| 483 #endif | |
| 484 static const char version_msg[] = PRODUCT_VERSION; | |
| 485 | |
| 486 writer.AddBoundary(); | |
| 487 writer.AddPairString("prod", chrome_product_msg); | |
| 488 writer.AddBoundary(); | |
| 489 writer.AddPairString("ver", version_msg); | |
| 490 writer.AddBoundary(); | |
| 491 writer.AddPairString("guid", info.guid); | |
| 492 writer.AddBoundary(); | |
| 493 writer.Flush(); | |
| 494 } | |
| 495 | |
| 496 if (info.process_start_time > 0) { | |
| 497 struct kernel_timeval tv; | |
| 498 if (!sys_gettimeofday(&tv, NULL)) { | |
| 499 uint64_t time = kernel_timeval_to_ms(&tv); | |
| 500 if (time > info.process_start_time) { | |
| 501 time -= info.process_start_time; | |
| 502 char time_str[kUint64StringSize]; | |
| 503 const unsigned time_len = my_uint64_len(time); | |
| 504 my_uint64tos(time_str, time, time_len); | |
| 505 | |
| 506 static const char process_time_msg[] = "ptime"; | |
| 507 writer.AddPairData(process_time_msg, sizeof(process_time_msg) - 1, | |
| 508 time_str, time_len); | |
| 509 writer.AddBoundary(); | |
| 510 writer.Flush(); | |
| 511 } | |
| 512 } | |
| 513 } | |
| 514 | |
| 515 if (info.process_type_length) { | |
| 516 writer.AddPairString("ptype", info.process_type); | |
| 517 writer.AddBoundary(); | |
| 518 writer.Flush(); | |
| 519 } | |
| 520 | |
| 521 // If GPU info is known, send it. | |
| 522 unsigned gpu_vendor_len = my_strlen(child_process_logging::g_gpu_vendor_id); | |
| 523 if (gpu_vendor_len) { | |
| 524 static const char vendor_msg[] = "gpu-venid"; | |
| 525 static const char device_msg[] = "gpu-devid"; | |
| 526 static const char driver_msg[] = "gpu-driver"; | |
| 527 static const char psver_msg[] = "gpu-psver"; | |
| 528 static const char vsver_msg[] = "gpu-vsver"; | |
| 529 | |
| 530 writer.AddPairString(vendor_msg, child_process_logging::g_gpu_vendor_id); | |
| 531 writer.AddBoundary(); | |
| 532 writer.AddPairString(device_msg, child_process_logging::g_gpu_device_id); | |
| 533 writer.AddBoundary(); | |
| 534 writer.AddPairString(driver_msg, child_process_logging::g_gpu_driver_ver); | |
| 535 writer.AddBoundary(); | |
| 536 writer.AddPairString(psver_msg, child_process_logging::g_gpu_ps_ver); | |
| 537 writer.AddBoundary(); | |
| 538 writer.AddPairString(vsver_msg, child_process_logging::g_gpu_vs_ver); | |
| 539 writer.AddBoundary(); | |
| 540 writer.Flush(); | |
| 541 } | |
| 542 | |
| 543 if (info.distro_length) { | |
| 544 static const char distro_msg[] = "lsb-release"; | |
| 545 writer.AddPairString(distro_msg, info.distro); | |
| 546 writer.AddBoundary(); | |
| 547 writer.Flush(); | |
| 548 } | |
| 549 | |
| 550 // For renderers and plugins. | |
| 551 if (info.crash_url_length) { | |
| 552 static const char url_chunk_msg[] = "url-chunk-"; | |
| 553 static const unsigned kMaxUrlLength = 8 * MimeWriter::kMaxCrashChunkSize; | |
| 554 writer.AddPairDataInChunks(url_chunk_msg, sizeof(url_chunk_msg) - 1, | |
| 555 info.crash_url, std::min(info.crash_url_length, kMaxUrlLength), | |
| 556 MimeWriter::kMaxCrashChunkSize, false /* Don't strip whitespaces. */); | |
| 557 } | |
| 558 | |
| 559 if (my_strlen(child_process_logging::g_channel)) { | |
| 560 writer.AddPairString("channel", child_process_logging::g_channel); | |
| 561 writer.AddBoundary(); | |
| 562 writer.Flush(); | |
| 563 } | |
| 564 | |
| 565 if (my_strlen(child_process_logging::g_num_views)) { | |
| 566 writer.AddPairString("num-views", child_process_logging::g_num_views); | |
| 567 writer.AddBoundary(); | |
| 568 writer.Flush(); | |
| 569 } | |
| 570 | |
| 571 if (my_strlen(child_process_logging::g_num_extensions)) { | |
| 572 writer.AddPairString("num-extensions", | |
| 573 child_process_logging::g_num_extensions); | |
| 574 writer.AddBoundary(); | |
| 575 writer.Flush(); | |
| 576 } | |
| 577 | |
| 578 unsigned extension_ids_len = | |
| 579 my_strlen(child_process_logging::g_extension_ids); | |
| 580 if (extension_ids_len) { | |
| 581 static const char extension_msg[] = "extension-"; | |
| 582 static const unsigned kMaxExtensionsLen = | |
| 583 kMaxReportedActiveExtensions * child_process_logging::kExtensionLen; | |
| 584 writer.AddPairDataInChunks(extension_msg, sizeof(extension_msg) - 1, | |
| 585 child_process_logging::g_extension_ids, | |
| 586 std::min(extension_ids_len, kMaxExtensionsLen), | |
| 587 child_process_logging::kExtensionLen, | |
| 588 false /* Don't strip whitespace. */); | |
| 589 } | |
| 590 | |
| 591 unsigned printer_info_len = | |
| 592 my_strlen(child_process_logging::g_printer_info); | |
| 593 if (printer_info_len) { | |
| 594 static const char printer_info_msg[] = "prn-info-"; | |
| 595 static const unsigned kMaxPrnInfoLen = | |
| 596 kMaxReportedPrinterRecords * child_process_logging::kPrinterInfoStrLen; | |
| 597 writer.AddPairDataInChunks(printer_info_msg, sizeof(printer_info_msg) - 1, | |
| 598 child_process_logging::g_printer_info, | |
| 599 std::min(printer_info_len, kMaxPrnInfoLen), | |
| 600 child_process_logging::kPrinterInfoStrLen, | |
| 601 true); | |
| 602 } | |
| 603 | |
| 604 if (my_strlen(child_process_logging::g_num_switches)) { | |
| 605 writer.AddPairString("num-switches", | |
| 606 child_process_logging::g_num_switches); | |
| 607 writer.AddBoundary(); | |
| 608 writer.Flush(); | |
| 609 } | |
| 610 | |
| 611 unsigned switches_len = | |
| 612 my_strlen(child_process_logging::g_switches); | |
| 613 if (switches_len) { | |
| 614 static const char switch_msg[] = "switch-"; | |
| 615 static const unsigned kMaxSwitchLen = | |
| 616 kMaxSwitches * child_process_logging::kSwitchLen; | |
| 617 writer.AddPairDataInChunks(switch_msg, sizeof(switch_msg) - 1, | |
| 618 child_process_logging::g_switches, | |
| 619 std::min(switches_len, kMaxSwitchLen), | |
| 620 child_process_logging::kSwitchLen, | |
| 621 true /* Strip whitespace since switches are padded to kSwitchLen. */); | |
| 622 } | |
| 623 | |
| 624 if (info.oom_size) { | |
| 625 char oom_size_str[kUint64StringSize]; | |
| 626 const unsigned oom_size_len = my_uint64_len(info.oom_size); | |
| 627 my_uint64tos(oom_size_str, info.oom_size, oom_size_len); | |
| 628 static const char oom_size_msg[] = "oom-size"; | |
| 629 writer.AddPairData(oom_size_msg, sizeof(oom_size_msg) - 1, | |
| 630 oom_size_str, oom_size_len); | |
| 631 writer.AddBoundary(); | |
| 632 writer.Flush(); | |
| 633 } | |
| 634 | |
| 635 writer.AddFileDump(dump_data, st.st_size); | |
| 636 writer.AddEnd(); | |
| 637 writer.Flush(); | |
| 638 | |
| 639 IGNORE_RET(sys_close(temp_file_fd)); | |
| 640 | |
| 641 if (!info.upload) | |
| 642 return; | |
| 643 | |
| 644 // The --header argument to wget looks like: | |
| 645 // --header=Content-Type: multipart/form-data; boundary=XYZ | |
| 646 // where the boundary has two fewer leading '-' chars | |
| 647 static const char header_msg[] = | |
| 648 "--header=Content-Type: multipart/form-data; boundary="; | |
| 649 char* const header = reinterpret_cast<char*>(allocator.Alloc( | |
| 650 sizeof(header_msg) - 1 + sizeof(mime_boundary) - 2)); | |
| 651 memcpy(header, header_msg, sizeof(header_msg) - 1); | |
| 652 memcpy(header + sizeof(header_msg) - 1, mime_boundary + 2, | |
| 653 sizeof(mime_boundary) - 2); | |
| 654 // We grab the NUL byte from the end of |mime_boundary|. | |
| 655 | |
| 656 // The --post-file argument to wget looks like: | |
| 657 // --post-file=/tmp/... | |
| 658 static const char post_file_msg[] = "--post-file="; | |
| 659 char* const post_file = reinterpret_cast<char*>(allocator.Alloc( | |
| 660 sizeof(post_file_msg) - 1 + sizeof(temp_file))); | |
| 661 memcpy(post_file, post_file_msg, sizeof(post_file_msg) - 1); | |
| 662 memcpy(post_file + sizeof(post_file_msg) - 1, temp_file, sizeof(temp_file)); | |
| 663 | |
| 664 const pid_t child = sys_fork(); | |
| 665 if (!child) { | |
| 666 // Spawned helper process. | |
| 667 // | |
| 668 // This code is called both when a browser is crashing (in which case, | |
| 669 // nothing really matters any more) and when a renderer/plugin crashes, in | |
| 670 // which case we need to continue. | |
| 671 // | |
| 672 // Since we are a multithreaded app, if we were just to fork(), we might | |
| 673 // grab file descriptors which have just been created in another thread and | |
| 674 // hold them open for too long. | |
| 675 // | |
| 676 // Thus, we have to loop and try and close everything. | |
| 677 const int fd = sys_open("/proc/self/fd", O_DIRECTORY | O_RDONLY, 0); | |
| 678 if (fd < 0) { | |
| 679 for (unsigned i = 3; i < 8192; ++i) | |
| 680 IGNORE_RET(sys_close(i)); | |
| 681 } else { | |
| 682 google_breakpad::DirectoryReader reader(fd); | |
| 683 const char* name; | |
| 684 while (reader.GetNextEntry(&name)) { | |
| 685 int i; | |
| 686 if (my_strtoui(&i, name) && i > 2 && i != fd) | |
| 687 IGNORE_RET(sys_close(i)); | |
| 688 reader.PopEntry(); | |
| 689 } | |
| 690 | |
| 691 IGNORE_RET(sys_close(fd)); | |
| 692 } | |
| 693 | |
| 694 IGNORE_RET(sys_setsid()); | |
| 695 | |
| 696 // Leave one end of a pipe in the wget process and watch for it getting | |
| 697 // closed by the wget process exiting. | |
| 698 int fds[2]; | |
| 699 if (sys_pipe(fds) >= 0) { | |
| 700 const pid_t wget_child = sys_fork(); | |
| 701 if (!wget_child) { | |
| 702 // Wget process. | |
| 703 IGNORE_RET(sys_close(fds[0])); | |
| 704 IGNORE_RET(sys_dup2(fds[1], 3)); | |
| 705 static const char* const kWgetBinary = "/usr/bin/wget"; | |
| 706 const char* args[] = { | |
| 707 kWgetBinary, | |
| 708 header, | |
| 709 post_file, | |
| 710 kUploadURL, | |
| 711 "--timeout=10", // Set a timeout so we don't hang forever. | |
| 712 "--tries=1", // Don't retry if the upload fails. | |
| 713 "-O", // output reply to fd 3 | |
| 714 "/dev/fd/3", | |
| 715 NULL, | |
| 716 }; | |
| 717 | |
| 718 execve(kWgetBinary, const_cast<char**>(args), environ); | |
| 719 static const char msg[] = "Cannot upload crash dump: cannot exec " | |
| 720 "/usr/bin/wget\n"; | |
| 721 sys_write(2, msg, sizeof(msg) - 1); | |
| 722 sys__exit(1); | |
| 723 } | |
| 724 | |
| 725 // Helper process. | |
| 726 if (wget_child > 0) { | |
| 727 IGNORE_RET(sys_close(fds[1])); | |
| 728 char id_buf[17]; // Crash report IDs are expected to be 16 chars. | |
| 729 ssize_t len = -1; | |
| 730 // Wget should finish in about 10 seconds. Add a few more 500 ms | |
| 731 // internals to account for process startup time. | |
| 732 for (size_t wait_count = 0; wait_count < 24; ++wait_count) { | |
| 733 struct kernel_pollfd poll_fd; | |
| 734 poll_fd.fd = fds[0]; | |
| 735 poll_fd.events = POLLIN | POLLPRI | POLLERR; | |
| 736 int ret = sys_poll(&poll_fd, 1, 500); | |
| 737 if (ret < 0) { | |
| 738 // Error | |
| 739 break; | |
| 740 } else if (ret > 0) { | |
| 741 // There is data to read. | |
| 742 len = HANDLE_EINTR(sys_read(fds[0], id_buf, sizeof(id_buf) - 1)); | |
| 743 break; | |
| 744 } | |
| 745 // ret == 0 -> timed out, continue waiting. | |
| 746 } | |
| 747 if (len > 0) { | |
| 748 // Write crash dump id to stderr. | |
| 749 id_buf[len] = 0; | |
| 750 static const char msg[] = "\nCrash dump id: "; | |
| 751 sys_write(2, msg, sizeof(msg) - 1); | |
| 752 sys_write(2, id_buf, my_strlen(id_buf)); | |
| 753 sys_write(2, "\n", 1); | |
| 754 | |
| 755 // Write crash dump id to crash log as: seconds_since_epoch,crash_id | |
| 756 struct kernel_timeval tv; | |
| 757 if (g_crash_log_path && !sys_gettimeofday(&tv, NULL)) { | |
| 758 uint64_t time = kernel_timeval_to_ms(&tv) / 1000; | |
| 759 char time_str[kUint64StringSize]; | |
| 760 const unsigned time_len = my_uint64_len(time); | |
| 761 my_uint64tos(time_str, time, time_len); | |
| 762 | |
| 763 int log_fd = sys_open(g_crash_log_path, | |
| 764 O_CREAT | O_WRONLY | O_APPEND, | |
| 765 0600); | |
| 766 if (log_fd > 0) { | |
| 767 sys_write(log_fd, time_str, time_len); | |
| 768 sys_write(log_fd, ",", 1); | |
| 769 sys_write(log_fd, id_buf, my_strlen(id_buf)); | |
| 770 sys_write(log_fd, "\n", 1); | |
| 771 IGNORE_RET(sys_close(log_fd)); | |
| 772 } | |
| 773 } | |
| 774 } | |
| 775 if (sys_waitpid(wget_child, NULL, WNOHANG) == 0) { | |
| 776 // Wget process is still around, kill it. | |
| 777 sys_kill(wget_child, SIGKILL); | |
| 778 } | |
| 779 } | |
| 780 } | |
| 781 | |
| 782 // Helper process. | |
| 783 IGNORE_RET(sys_unlink(info.filename)); | |
| 784 IGNORE_RET(sys_unlink(temp_file)); | |
| 785 sys__exit(0); | |
| 786 } | |
| 787 | |
| 788 // Main browser process. | |
| 789 if (child <= 0) | |
| 790 return; | |
| 791 HANDLE_EINTR(sys_waitpid(child, NULL, 0)); | |
| 792 } | |
| 793 | |
| 794 static bool CrashDone(const char* dump_path, | |
| 795 const char* minidump_id, | |
| 796 const bool upload, | |
| 797 const bool succeeded) { | |
| 798 // WARNING: this code runs in a compromised context. It may not call into | |
| 799 // libc nor allocate memory normally. | |
| 800 if (!succeeded) | |
| 801 return false; | |
| 802 | |
| 803 google_breakpad::PageAllocator allocator; | |
| 804 const unsigned dump_path_len = my_strlen(dump_path); | |
| 805 const unsigned minidump_id_len = my_strlen(minidump_id); | |
| 806 char* const path = reinterpret_cast<char*>(allocator.Alloc( | |
| 807 dump_path_len + 1 /* '/' */ + minidump_id_len + | |
| 808 4 /* ".dmp" */ + 1 /* NUL */)); | |
| 809 memcpy(path, dump_path, dump_path_len); | |
| 810 path[dump_path_len] = '/'; | |
| 811 memcpy(path + dump_path_len + 1, minidump_id, minidump_id_len); | |
| 812 memcpy(path + dump_path_len + 1 + minidump_id_len, ".dmp", 4); | |
| 813 path[dump_path_len + 1 + minidump_id_len + 4] = 0; | |
| 814 | |
| 815 BreakpadInfo info; | |
| 816 info.filename = path; | |
| 817 info.process_type = "browser"; | |
| 818 info.process_type_length = 7; | |
| 819 info.crash_url = NULL; | |
| 820 info.crash_url_length = 0; | |
| 821 info.guid = child_process_logging::g_client_id; | |
| 822 info.guid_length = my_strlen(child_process_logging::g_client_id); | |
| 823 info.distro = base::g_linux_distro; | |
| 824 info.distro_length = my_strlen(base::g_linux_distro); | |
| 825 info.upload = upload; | |
| 826 info.process_start_time = g_process_start_time; | |
| 827 info.oom_size = base::g_oom_size; | |
| 828 HandleCrashDump(info); | |
| 829 return true; | |
| 830 } | |
| 831 | |
| 832 // Wrapper function, do not add more code here. | |
| 833 static bool CrashDoneNoUpload(const char* dump_path, | |
| 834 const char* minidump_id, | |
| 835 void* context, | |
| 836 bool succeeded) { | |
| 837 return CrashDone(dump_path, minidump_id, false, succeeded); | |
| 838 } | |
| 839 | |
| 840 // Wrapper function, do not add more code here. | |
| 841 static bool CrashDoneUpload(const char* dump_path, | |
| 842 const char* minidump_id, | |
| 843 void* context, | |
| 844 bool succeeded) { | |
| 845 return CrashDone(dump_path, minidump_id, true, succeeded); | |
| 846 } | |
| 847 | |
| 848 void EnableCrashDumping(const bool unattended) { | |
| 849 g_is_crash_reporter_enabled = true; | |
| 850 | |
| 851 FilePath tmp_path("/tmp"); | |
| 852 PathService::Get(base::DIR_TEMP, &tmp_path); | |
| 853 | |
| 854 FilePath dumps_path(tmp_path); | |
| 855 if (PathService::Get(chrome::DIR_CRASH_DUMPS, &dumps_path)) { | |
| 856 FilePath logfile = | |
| 857 dumps_path.AppendASCII(CrashUploadList::kReporterLogFilename); | |
| 858 std::string logfile_str = logfile.value(); | |
| 859 const size_t crash_log_path_len = logfile_str.size() + 1; | |
| 860 g_crash_log_path = new char[crash_log_path_len]; | |
| 861 strncpy(g_crash_log_path, logfile_str.c_str(), crash_log_path_len); | |
| 862 } | |
| 863 | |
| 864 DCHECK(!g_breakpad); | |
| 865 if (unattended) { | |
| 866 g_breakpad = new google_breakpad::ExceptionHandler( | |
| 867 dumps_path.value().c_str(), | |
| 868 NULL, | |
| 869 CrashDoneNoUpload, | |
| 870 NULL, | |
| 871 true /* install handlers */); | |
| 872 } else { | |
| 873 g_breakpad = new google_breakpad::ExceptionHandler( | |
| 874 tmp_path.value().c_str(), | |
| 875 NULL, | |
| 876 CrashDoneUpload, | |
| 877 NULL, | |
| 878 true /* install handlers */); | |
| 879 } | |
| 880 } | |
| 881 | |
| 882 // Non-Browser = Extension, Gpu, Plugins, Ppapi and Renderer | |
| 883 static bool NonBrowserCrashHandler(const void* crash_context, | |
| 884 size_t crash_context_size, | |
| 885 void* context) { | |
| 886 const int fd = reinterpret_cast<intptr_t>(context); | |
| 887 int fds[2] = { -1, -1 }; | |
| 888 if (sys_socketpair(AF_UNIX, SOCK_STREAM, 0, fds) < 0) { | |
| 889 static const char msg[] = "Failed to create socket for crash dumping.\n"; | |
| 890 sys_write(2, msg, sizeof(msg)-1); | |
| 891 return false; | |
| 892 } | |
| 893 | |
| 894 // On kernels with ptrace protection, e.g. Ubuntu 10.10+, the browser cannot | |
| 895 // ptrace this crashing process and crash dumping will fail. When using the | |
| 896 // SUID sandbox, this crashing process is likely to be in its own PID | |
| 897 // namespace, and thus there is no way to permit only the browser process to | |
| 898 // ptrace it. | |
| 899 // The workaround is to allow all processes to ptrace this process if we | |
| 900 // reach this point, by passing -1 as the allowed PID. However, support for | |
| 901 // passing -1 as the PID won't reach kernels until around the Ubuntu 12.04 | |
| 902 // timeframe. | |
| 903 sys_prctl(PR_SET_PTRACER, -1); | |
| 904 | |
| 905 // Start constructing the message to send to the browser. | |
| 906 char guid[kGuidSize + 1] = {0}; | |
| 907 char crash_url[kMaxActiveURLSize + 1] = {0}; | |
| 908 char distro[kDistroSize + 1] = {0}; | |
| 909 const size_t guid_len = | |
| 910 std::min(my_strlen(child_process_logging::g_client_id), kGuidSize); | |
| 911 const size_t crash_url_len = | |
| 912 std::min(my_strlen(child_process_logging::g_active_url), | |
| 913 kMaxActiveURLSize); | |
| 914 const size_t distro_len = | |
| 915 std::min(my_strlen(base::g_linux_distro), kDistroSize); | |
| 916 memcpy(guid, child_process_logging::g_client_id, guid_len); | |
| 917 memcpy(crash_url, child_process_logging::g_active_url, crash_url_len); | |
| 918 memcpy(distro, base::g_linux_distro, distro_len); | |
| 919 | |
| 920 char b; // Dummy variable for sys_read below. | |
| 921 const char* b_addr = &b; // Get the address of |b| so we can create the | |
| 922 // expected /proc/[pid]/syscall content in the | |
| 923 // browser to convert namespace tids. | |
| 924 | |
| 925 // The length of the control message: | |
| 926 static const unsigned kControlMsgSize = sizeof(fds); | |
| 927 static const unsigned kControlMsgSpaceSize = CMSG_SPACE(kControlMsgSize); | |
| 928 static const unsigned kControlMsgLenSize = CMSG_LEN(kControlMsgSize); | |
| 929 | |
| 930 const size_t kIovSize = 8; | |
| 931 struct kernel_msghdr msg; | |
| 932 my_memset(&msg, 0, sizeof(struct kernel_msghdr)); | |
| 933 struct kernel_iovec iov[kIovSize]; | |
| 934 iov[0].iov_base = const_cast<void*>(crash_context); | |
| 935 iov[0].iov_len = crash_context_size; | |
| 936 iov[1].iov_base = guid; | |
| 937 iov[1].iov_len = kGuidSize + 1; | |
| 938 iov[2].iov_base = crash_url; | |
| 939 iov[2].iov_len = kMaxActiveURLSize + 1; | |
| 940 iov[3].iov_base = distro; | |
| 941 iov[3].iov_len = kDistroSize + 1; | |
| 942 iov[4].iov_base = &b_addr; | |
| 943 iov[4].iov_len = sizeof(b_addr); | |
| 944 iov[5].iov_base = &fds[0]; | |
| 945 iov[5].iov_len = sizeof(fds[0]); | |
| 946 iov[6].iov_base = &g_process_start_time; | |
| 947 iov[6].iov_len = sizeof(g_process_start_time); | |
| 948 iov[7].iov_base = &base::g_oom_size; | |
| 949 iov[7].iov_len = sizeof(base::g_oom_size); | |
| 950 | |
| 951 msg.msg_iov = iov; | |
| 952 msg.msg_iovlen = kIovSize; | |
| 953 char cmsg[kControlMsgSpaceSize]; | |
| 954 my_memset(cmsg, 0, kControlMsgSpaceSize); | |
| 955 msg.msg_control = cmsg; | |
| 956 msg.msg_controllen = sizeof(cmsg); | |
| 957 | |
| 958 struct cmsghdr *hdr = CMSG_FIRSTHDR(&msg); | |
| 959 hdr->cmsg_level = SOL_SOCKET; | |
| 960 hdr->cmsg_type = SCM_RIGHTS; | |
| 961 hdr->cmsg_len = kControlMsgLenSize; | |
| 962 ((int*) CMSG_DATA(hdr))[0] = fds[0]; | |
| 963 ((int*) CMSG_DATA(hdr))[1] = fds[1]; | |
| 964 | |
| 965 if (HANDLE_EINTR(sys_sendmsg(fd, &msg, 0)) < 0) { | |
| 966 static const char errmsg[] = "Failed to tell parent about crash.\n"; | |
| 967 sys_write(2, errmsg, sizeof(errmsg)-1); | |
| 968 IGNORE_RET(sys_close(fds[1])); | |
| 969 return false; | |
| 970 } | |
| 971 IGNORE_RET(sys_close(fds[1])); | |
| 972 | |
| 973 if (HANDLE_EINTR(sys_read(fds[0], &b, 1)) != 1) { | |
| 974 static const char errmsg[] = "Parent failed to complete crash dump.\n"; | |
| 975 sys_write(2, errmsg, sizeof(errmsg)-1); | |
| 976 } | |
| 977 | |
| 978 return true; | |
| 979 } | |
| 980 | |
| 981 void EnableNonBrowserCrashDumping() { | |
| 982 const int fd = base::GlobalDescriptors::GetInstance()->Get(kCrashDumpSignal); | |
| 983 g_is_crash_reporter_enabled = true; | |
| 984 // We deliberately leak this object. | |
| 985 DCHECK(!g_breakpad); | |
| 986 g_breakpad = new google_breakpad::ExceptionHandler( | |
| 987 "" /* unused */, NULL, NULL, reinterpret_cast<void*>(fd), true); | |
| 988 g_breakpad->set_crash_handler(NonBrowserCrashHandler); | |
| 989 } | |
| 990 | |
| 991 void InitCrashReporter() { | |
| 992 // Determine the process type and take appropriate action. | |
| 993 const CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess(); | |
| 994 if (parsed_command_line.HasSwitch(switches::kDisableBreakpad)) | |
| 995 return; | |
| 996 | |
| 997 const std::string process_type = | |
| 998 parsed_command_line.GetSwitchValueASCII(switches::kProcessType); | |
| 999 if (process_type.empty()) { | |
| 1000 EnableCrashDumping(getenv(env_vars::kHeadless) != NULL); | |
| 1001 } else if (process_type == switches::kRendererProcess || | |
| 1002 process_type == switches::kPluginProcess || | |
| 1003 process_type == switches::kPpapiPluginProcess || | |
| 1004 process_type == switches::kZygoteProcess || | |
| 1005 process_type == switches::kGpuProcess) { | |
| 1006 // We might be chrooted in a zygote or renderer process so we cannot call | |
| 1007 // GetCollectStatsConsent because that needs access the the user's home | |
| 1008 // dir. Instead, we set a command line flag for these processes. | |
| 1009 // Even though plugins are not chrooted, we share the same code path for | |
| 1010 // simplicity. | |
| 1011 if (!parsed_command_line.HasSwitch(switches::kEnableCrashReporter)) | |
| 1012 return; | |
| 1013 // Get the guid and linux distro from the command line switch. | |
| 1014 std::string switch_value = | |
| 1015 parsed_command_line.GetSwitchValueASCII(switches::kEnableCrashReporter); | |
| 1016 size_t separator = switch_value.find(","); | |
| 1017 if (separator != std::string::npos) { | |
| 1018 child_process_logging::SetClientId(switch_value.substr(0, separator)); | |
| 1019 base::SetLinuxDistro(switch_value.substr(separator + 1)); | |
| 1020 } else { | |
| 1021 child_process_logging::SetClientId(switch_value); | |
| 1022 } | |
| 1023 EnableNonBrowserCrashDumping(); | |
| 1024 } | |
| 1025 | |
| 1026 // Set the base process start time value. | |
| 1027 struct timeval tv; | |
| 1028 if (!gettimeofday(&tv, NULL)) | |
| 1029 g_process_start_time = timeval_to_ms(&tv); | |
| 1030 else | |
| 1031 g_process_start_time = 0; | |
| 1032 | |
| 1033 logging::SetDumpWithoutCrashingFunction(&DumpProcess); | |
| 1034 } | |
| 1035 | |
| 1036 bool IsCrashReporterEnabled() { | |
| 1037 return g_is_crash_reporter_enabled; | |
| 1038 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 9838033:
Upstream native crash handling changes for Android. (Closed)
Base URL: http://git.chromium.org/git/chromium.git@trunk