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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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166 | 166 |
167 | 167 |
168 void OS::LogSharedLibraryAddresses(Isolate* isolate) { | 168 void OS::LogSharedLibraryAddresses(Isolate* isolate) { |
169 } | 169 } |
170 | 170 |
171 | 171 |
172 void OS::SignalCodeMovingGC() { | 172 void OS::SignalCodeMovingGC() { |
173 } | 173 } |
174 | 174 |
175 | 175 |
| 176 uintptr_t OS::TotalPhysicalMemory() { |
| 177 intptr_t pages = sysconf(_SC_PHYS_PAGES); |
| 178 intptr_t page_size = sysconf(_SC_PAGESIZE); |
| 179 if (pages == -1 || page_size == -1) { |
| 180 UNREACHABLE(); |
| 181 return 0; |
| 182 } |
| 183 return static_cast<uintptr_t>(pages) * page_size; |
| 184 } |
| 185 |
| 186 |
176 struct StackWalker { | 187 struct StackWalker { |
177 Vector<OS::StackFrame>& frames; | 188 Vector<OS::StackFrame>& frames; |
178 int index; | 189 int index; |
179 }; | 190 }; |
180 | 191 |
181 | 192 |
182 static int StackWalkCallback(uintptr_t pc, int signo, void* data) { | 193 static int StackWalkCallback(uintptr_t pc, int signo, void* data) { |
183 struct StackWalker* walker = static_cast<struct StackWalker*>(data); | 194 struct StackWalker* walker = static_cast<struct StackWalker*>(data); |
184 Dl_info info; | 195 Dl_info info; |
185 | 196 |
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341 return munmap(base, size) == 0; | 352 return munmap(base, size) == 0; |
342 } | 353 } |
343 | 354 |
344 | 355 |
345 bool VirtualMemory::HasLazyCommits() { | 356 bool VirtualMemory::HasLazyCommits() { |
346 // TODO(alph): implement for the platform. | 357 // TODO(alph): implement for the platform. |
347 return false; | 358 return false; |
348 } | 359 } |
349 | 360 |
350 } } // namespace v8::internal | 361 } } // namespace v8::internal |
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