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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/globals.h" | 5 #include "vm/globals.h" |
| 6 #if defined(TARGET_OS_WINDOWS) | 6 #if defined(TARGET_OS_WINDOWS) |
| 7 | 7 |
| 8 #include "vm/os.h" | 8 #include "vm/os.h" |
| 9 | 9 |
| 10 #include <malloc.h> // NOLINT | 10 #include <malloc.h> // NOLINT |
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| 183 return result; | 183 return result; |
| 184 } | 184 } |
| 185 | 185 |
| 186 | 186 |
| 187 int64_t OS::GetCurrentThreadCPUMicros() { | 187 int64_t OS::GetCurrentThreadCPUMicros() { |
| 188 // TODO(johnmccutchan): Implement. See base/time_win.cc for details. | 188 // TODO(johnmccutchan): Implement. See base/time_win.cc for details. |
| 189 return -1; | 189 return -1; |
| 190 } | 190 } |
| 191 | 191 |
| 192 | 192 |
| 193 void* OS::AlignedAllocate(intptr_t size, intptr_t alignment) { | |
| 194 const int kMinimumAlignment = 16; | |
| 195 ASSERT(Utils::IsPowerOfTwo(alignment)); | |
| 196 ASSERT(alignment >= kMinimumAlignment); | |
| 197 void* p = _aligned_malloc(size, alignment); | |
| 198 if (p == NULL) { | |
| 199 UNREACHABLE(); | |
| 200 } | |
| 201 return p; | |
| 202 } | |
| 203 | |
| 204 | |
| 205 void OS::AlignedFree(void* ptr) { | |
| 206 _aligned_free(ptr); | |
| 207 } | |
| 208 | |
| 209 | |
| 210 intptr_t OS::ActivationFrameAlignment() { | 193 intptr_t OS::ActivationFrameAlignment() { |
| 211 #ifdef _WIN64 | 194 #ifdef _WIN64 |
| 212 // Windows 64-bit ABI requires the stack to be 16-byte aligned. | 195 // Windows 64-bit ABI requires the stack to be 16-byte aligned. |
| 213 return 16; | 196 return 16; |
| 214 #else | 197 #else |
| 215 // No requirements on Win32. | 198 // No requirements on Win32. |
| 216 return 1; | 199 return 1; |
| 217 #endif | 200 #endif |
| 218 } | 201 } |
| 219 | 202 |
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| 455 // TODO(zra): Remove once VM shuts down cleanly. | 438 // TODO(zra): Remove once VM shuts down cleanly. |
| 456 private_flag_windows_run_tls_destructors = false; | 439 private_flag_windows_run_tls_destructors = false; |
| 457 // On Windows we use ExitProcess so that threads can't clobber the exit_code. | 440 // On Windows we use ExitProcess so that threads can't clobber the exit_code. |
| 458 // See: https://code.google.com/p/nativeclient/issues/detail?id=2870 | 441 // See: https://code.google.com/p/nativeclient/issues/detail?id=2870 |
| 459 ::ExitProcess(code); | 442 ::ExitProcess(code); |
| 460 } | 443 } |
| 461 | 444 |
| 462 } // namespace dart | 445 } // namespace dart |
| 463 | 446 |
| 464 #endif // defined(TARGET_OS_WINDOWS) | 447 #endif // defined(TARGET_OS_WINDOWS) |
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