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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be | 
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. | 
| 4 | 4 | 
| 5 #include "base/debug/alias.h" | 5 #include "base/debug/alias.h" | 
| 6 #include "base/logging.h" | 6 #include "base/logging.h" | 
| 7 #include "base/process/memory.h" | 7 #include "base/process/memory.h" | 
| 8 #include "build/build_config.h" | 8 #include "build/build_config.h" | 
| 9 | 9 | 
| 10 namespace base { | 10 namespace base { | 
| 11 | 11 | 
| 12 // Defined in memory_win.cc for Windows. | 12 // Defined in memory_win.cc for Windows. | 
| 13 #if !defined(OS_WIN) | 13 #if !defined(OS_WIN) && !defined(OS_FUCHSIA) | 
| 14 | 14 | 
| 15 namespace { | 15 namespace { | 
| 16 | 16 | 
| 17 // Breakpad server classifies base::`anonymous namespace'::OnNoMemory as | 17 // Breakpad server classifies base::`anonymous namespace'::OnNoMemory as | 
| 18 // out-of-memory crash. | 18 // out-of-memory crash. | 
| 19 NOINLINE void OnNoMemory(size_t size) { | 19 NOINLINE void OnNoMemory(size_t size) { | 
| 20   size_t tmp_size = size; | 20   size_t tmp_size = size; | 
| 21   base::debug::Alias(&tmp_size); | 21   base::debug::Alias(&tmp_size); | 
| 22   LOG(FATAL) << "Out of memory. size=" << tmp_size; | 22   LOG(FATAL) << "Out of memory. size=" << tmp_size; | 
| 23 } | 23 } | 
| 24 | 24 | 
| 25 }  // namespace | 25 }  // namespace | 
| 26 | 26 | 
| 27 void TerminateBecauseOutOfMemory(size_t size) { | 27 void TerminateBecauseOutOfMemory(size_t size) { | 
| 28   OnNoMemory(size); | 28   OnNoMemory(size); | 
| 29 } | 29 } | 
| 30 | 30 | 
| 31 #endif | 31 #endif | 
| 32 | 32 | 
| 33 // Defined in memory_mac.mm for Mac. | 33 // Defined in memory_mac.mm for Mac. | 
| 34 #if !defined(OS_MACOSX) | 34 #if !defined(OS_MACOSX) && !defined(OS_FUCHSIA) | 
| 35 | 35 | 
| 36 bool UncheckedCalloc(size_t num_items, size_t size, void** result) { | 36 bool UncheckedCalloc(size_t num_items, size_t size, void** result) { | 
| 37   const size_t alloc_size = num_items * size; | 37   const size_t alloc_size = num_items * size; | 
| 38 | 38 | 
| 39   // Overflow check | 39   // Overflow check | 
| 40   if (size && ((alloc_size / size) != num_items)) { | 40   if (size && ((alloc_size / size) != num_items)) { | 
| 41     *result = NULL; | 41     *result = NULL; | 
| 42     return false; | 42     return false; | 
| 43   } | 43   } | 
| 44 | 44 | 
| 45   if (!UncheckedMalloc(alloc_size, result)) | 45   if (!UncheckedMalloc(alloc_size, result)) | 
| 46     return false; | 46     return false; | 
| 47 | 47 | 
| 48   memset(*result, 0, alloc_size); | 48   memset(*result, 0, alloc_size); | 
| 49   return true; | 49   return true; | 
| 50 } | 50 } | 
| 51 | 51 | 
| 52 #endif | 52 #endif | 
| 53 | 53 | 
| 54 }  // namespace base | 54 }  // namespace base | 
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