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Issue 2130293003: Change OOMs to raise custom exception rather than breakpoint on Windows. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: remove unused func Created 4 years, 5 months ago
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2013 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/process/memory.h" 5 #include "base/process/memory.h"
6 6
7 #include <new.h> 7 #include <new.h>
8 #include <psapi.h> 8 #include <psapi.h>
9 #include <stddef.h> 9 #include <stddef.h>
10 10 #include <windows.h>
11 #include "base/logging.h"
12 11
13 // malloc_unchecked is required to implement UncheckedMalloc properly. 12 // malloc_unchecked is required to implement UncheckedMalloc properly.
14 // It's provided by allocator_shim_win.cc but since that's not always present, 13 // It's provided by allocator_shim_win.cc but since that's not always present,
15 // we provide a default that falls back to regular malloc. 14 // we provide a default that falls back to regular malloc.
16 typedef void* (*MallocFn)(size_t); 15 typedef void* (*MallocFn)(size_t);
17 extern "C" void* (*const malloc_unchecked)(size_t); 16 extern "C" void* (*const malloc_unchecked)(size_t);
18 extern "C" void* (*const malloc_default)(size_t) = &malloc; 17 extern "C" void* (*const malloc_default)(size_t) = &malloc;
19 18
20 #if defined(_M_IX86) 19 #if defined(_M_IX86)
21 #pragma comment(linker, "/alternatename:_malloc_unchecked=_malloc_default") 20 #pragma comment(linker, "/alternatename:_malloc_unchecked=_malloc_default")
22 #elif defined(_M_X64) || defined(_M_ARM) 21 #elif defined(_M_X64) || defined(_M_ARM)
23 #pragma comment(linker, "/alternatename:malloc_unchecked=malloc_default") 22 #pragma comment(linker, "/alternatename:malloc_unchecked=malloc_default")
24 #else 23 #else
25 #error Unsupported platform 24 #error Unsupported platform
26 #endif 25 #endif
27 26
28 namespace base { 27 namespace base {
29 28
30 namespace { 29 namespace {
31 30
32 #pragma warning(push) 31 #pragma warning(push)
33 #pragma warning(disable: 4702) 32 #pragma warning(disable: 4702)
34 33
35 int OnNoMemory(size_t size) { 34 int OnNoMemory(size_t size) {
36 // Kill the process. This is important for security since most of code 35 // Kill the process. This is important for security since most of code
37 // does not check the result of memory allocation. 36 // does not check the result of memory allocation.
38 LOG(FATAL) << "Out of memory, size = " << size; 37 // https://msdn.microsoft.com/en-us/library/het71c37.aspx
38 ::RaiseException(win::kOomExceptionCode, EXCEPTION_NONCONTINUABLE, 0,
39 nullptr);
39 40
40 // Safety check, make sure process exits here. 41 // Safety check, make sure process exits here.
41 _exit(1); 42 _exit(win::kOomExceptionCode);
42 return 0; 43 return 0;
43 } 44 }
44 45
45 #pragma warning(pop) 46 #pragma warning(pop)
46 47
47 // HeapSetInformation function pointer. 48 // HeapSetInformation function pointer.
48 typedef BOOL (WINAPI* HeapSetFn)(HANDLE, HEAP_INFORMATION_CLASS, PVOID, SIZE_T); 49 typedef BOOL (WINAPI* HeapSetFn)(HANDLE, HEAP_INFORMATION_CLASS, PVOID, SIZE_T);
49 50
50 } // namespace 51 } // namespace
51 52
52 void EnableTerminationOnHeapCorruption() { 53 void EnableTerminationOnHeapCorruption() {
53 // Ignore the result code. Supported on XP SP3 and Vista. 54 // Ignore the result code. Supported on XP SP3 and Vista.
54 HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0); 55 HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
55 } 56 }
56 57
57 void EnableTerminationOnOutOfMemory() { 58 void EnableTerminationOnOutOfMemory() {
58 _set_new_handler(&OnNoMemory); 59 _set_new_handler(&OnNoMemory);
59 _set_new_mode(1); 60 _set_new_mode(1);
60 } 61 }
61 62
62 // Implemented using a weak symbol. 63 // Implemented using a weak symbol.
63 bool UncheckedMalloc(size_t size, void** result) { 64 bool UncheckedMalloc(size_t size, void** result) {
64 *result = malloc_unchecked(size); 65 *result = malloc_unchecked(size);
65 return *result != NULL; 66 return *result != NULL;
66 } 67 }
67 68
68 } // namespace base 69 } // namespace base
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