blob: bd46ab17c8953a0e4d4e6a76ccef3d460c6c593c [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/process/memory.h"
#if defined(OS_WIN)
#include <windows.h>
#endif // defined(OS_WIN)
#include "base/debug/alias.h"
#include "base/logging.h"
#include "base/partition_alloc_buildflags.h"
#if BUILDFLAG(USE_PARTITION_ALLOC)
#include "base/allocator/partition_allocator/page_allocator.h"
#endif
#include "build/build_config.h"
namespace base {
namespace internal {
void OnNoMemoryInternal(size_t size) {
#if defined(OS_WIN)
// Kill the process. This is important for security since most of code
// does not check the result of memory allocation.
// https://msdn.microsoft.com/en-us/library/het71c37.aspx
// Pass the size of the failed request in an exception argument.
ULONG_PTR exception_args[] = {size};
::RaiseException(base::win::kOomExceptionCode, EXCEPTION_NONCONTINUABLE,
base::size(exception_args), exception_args);
// Safety check, make sure process exits here.
_exit(win::kOomExceptionCode);
#else
size_t tmp_size = size;
base::debug::Alias(&tmp_size);
LOG(FATAL) << "Out of memory. size=" << tmp_size;
#endif // defined(OS_WIN)
}
} // namespace internal
// Defined in memory_win.cc for Windows.
#if !defined(OS_WIN)
namespace {
// Breakpad server classifies base::`anonymous namespace'::OnNoMemory as
// out-of-memory crash.
NOINLINE void OnNoMemory(size_t size) {
internal::OnNoMemoryInternal(size);
}
} // namespace
void TerminateBecauseOutOfMemory(size_t size) {
OnNoMemory(size);
}
#endif // !defined(OS_WIN)
// Defined in memory_mac.mm for Mac.
#if !defined(OS_MACOSX)
bool UncheckedCalloc(size_t num_items, size_t size, void** result) {
const size_t alloc_size = num_items * size;
// Overflow check
if (size && ((alloc_size / size) != num_items)) {
*result = nullptr;
return false;
}
if (!UncheckedMalloc(alloc_size, result))
return false;
memset(*result, 0, alloc_size);
return true;
}
#endif // defined(OS_MACOSX)
namespace internal {
bool ReleaseAddressSpaceReservation() {
#if BUILDFLAG(USE_PARTITION_ALLOC)
return ReleaseReservation();
#else
return false;
#endif
}
} // namespace internal
} // namespace base