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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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| 82 | 82 |
| 83 | 83 |
| 84 void* OS::Allocate(const size_t requested, | 84 void* OS::Allocate(const size_t requested, |
| 85 size_t* allocated, | 85 size_t* allocated, |
| 86 bool executable) { | 86 bool executable) { |
| 87 const size_t msize = RoundUp(requested, getpagesize()); | 87 const size_t msize = RoundUp(requested, getpagesize()); |
| 88 int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0); | 88 int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0); |
| 89 void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANON, -1, 0); | 89 void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANON, -1, 0); |
| 90 | 90 |
| 91 if (mbase == MAP_FAILED) { | 91 if (mbase == MAP_FAILED) { |
| 92 LOG(ISOLATE, StringEvent("OS::Allocate", "mmap failed")); | 92 LOG(Isolate::Current(), StringEvent("OS::Allocate", "mmap failed")); |
| 93 return NULL; | 93 return NULL; |
| 94 } | 94 } |
| 95 *allocated = msize; | 95 *allocated = msize; |
| 96 return mbase; | 96 return mbase; |
| 97 } | 97 } |
| 98 | 98 |
| 99 | 99 |
| 100 void OS::DumpBacktrace() { | 100 void OS::DumpBacktrace() { |
| 101 POSIXBacktraceHelper<backtrace, backtrace_symbols>::DumpBacktrace(); | 101 POSIXBacktraceHelper<backtrace, backtrace_symbols>::DumpBacktrace(); |
| 102 } | 102 } |
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| 334 return munmap(base, size) == 0; | 334 return munmap(base, size) == 0; |
| 335 } | 335 } |
| 336 | 336 |
| 337 | 337 |
| 338 bool VirtualMemory::HasLazyCommits() { | 338 bool VirtualMemory::HasLazyCommits() { |
| 339 // TODO(alph): implement for the platform. | 339 // TODO(alph): implement for the platform. |
| 340 return false; | 340 return false; |
| 341 } | 341 } |
| 342 | 342 |
| 343 } } // namespace v8::internal | 343 } } // namespace v8::internal |
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