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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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