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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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302 mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fileno(file), 0); | 302 mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fileno(file), 0); |
303 return new PosixMemoryMappedFile(file, memory, size); | 303 return new PosixMemoryMappedFile(file, memory, size); |
304 } | 304 } |
305 | 305 |
306 | 306 |
307 PosixMemoryMappedFile::~PosixMemoryMappedFile() { | 307 PosixMemoryMappedFile::~PosixMemoryMappedFile() { |
308 if (memory_) munmap(memory_, size_); | 308 if (memory_) munmap(memory_, size_); |
309 fclose(file_); | 309 fclose(file_); |
310 } | 310 } |
311 | 311 |
| 312 |
312 #ifdef ENABLE_LOGGING_AND_PROFILING | 313 #ifdef ENABLE_LOGGING_AND_PROFILING |
313 static unsigned StringToLongLong(char* buffer) { | 314 static unsigned StringToLong(char* buffer) { |
314 return static_cast<unsigned>(strtoll(buffer, NULL, 16)); // NOLINT | 315 return static_cast<unsigned>(strtol(buffer, NULL, 16)); // NOLINT |
315 } | 316 } |
| 317 #endif |
316 | 318 |
317 #endif | |
318 | 319 |
319 void OS::LogSharedLibraryAddresses() { | 320 void OS::LogSharedLibraryAddresses() { |
320 #ifdef ENABLE_LOGGING_AND_PROFILING | 321 #ifdef ENABLE_LOGGING_AND_PROFILING |
321 static const int MAP_LENGTH = 1024; | 322 static const int MAP_LENGTH = 1024; |
322 int fd = open("/proc/self/maps", O_RDONLY); | 323 int fd = open("/proc/self/maps", O_RDONLY); |
323 if (fd < 0) return; | 324 if (fd < 0) return; |
324 while (true) { | 325 while (true) { |
325 char addr_buffer[11]; | 326 char addr_buffer[11]; |
326 addr_buffer[0] = '0'; | 327 addr_buffer[0] = '0'; |
327 addr_buffer[1] = 'x'; | 328 addr_buffer[1] = 'x'; |
328 addr_buffer[10] = 0; | 329 addr_buffer[10] = 0; |
329 int result = read(fd, addr_buffer + 2, 8); | 330 int result = read(fd, addr_buffer + 2, 8); |
330 if (result < 8) break; | 331 if (result < 8) break; |
331 unsigned start = StringToLongLong(addr_buffer); | 332 unsigned start = StringToLong(addr_buffer); |
332 result = read(fd, addr_buffer + 2, 1); | 333 result = read(fd, addr_buffer + 2, 1); |
333 if (result < 1) break; | 334 if (result < 1) break; |
334 if (addr_buffer[2] != '-') break; | 335 if (addr_buffer[2] != '-') break; |
335 result = read(fd, addr_buffer + 2, 8); | 336 result = read(fd, addr_buffer + 2, 8); |
336 if (result < 8) break; | 337 if (result < 8) break; |
337 unsigned end = StringToLongLong(addr_buffer); | 338 unsigned end = StringToLong(addr_buffer); |
338 char buffer[MAP_LENGTH]; | 339 char buffer[MAP_LENGTH]; |
339 int bytes_read = -1; | 340 int bytes_read = -1; |
340 do { | 341 do { |
341 bytes_read++; | 342 bytes_read++; |
342 if (bytes_read >= MAP_LENGTH - 1) | 343 if (bytes_read >= MAP_LENGTH - 1) |
343 break; | 344 break; |
344 result = read(fd, buffer + bytes_read, 1); | 345 result = read(fd, buffer + bytes_read, 1); |
345 if (result < 1) break; | 346 if (result < 1) break; |
346 } while (buffer[bytes_read] != '\n'); | 347 } while (buffer[bytes_read] != '\n'); |
347 buffer[bytes_read] = 0; | 348 buffer[bytes_read] = 0; |
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688 } | 689 } |
689 | 690 |
690 // This sampler is no longer the active sampler. | 691 // This sampler is no longer the active sampler. |
691 active_sampler_ = NULL; | 692 active_sampler_ = NULL; |
692 active_ = false; | 693 active_ = false; |
693 } | 694 } |
694 | 695 |
695 #endif // ENABLE_LOGGING_AND_PROFILING | 696 #endif // ENABLE_LOGGING_AND_PROFILING |
696 | 697 |
697 } } // namespace v8::internal | 698 } } // namespace v8::internal |
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