25fce2c5c1
R=hpayer@chromium.org Review URL: https://codereview.chromium.org/897213003 Cr-Commit-Position: refs/heads/master@{#26570}
112 lines
2.2 KiB
C++
112 lines
2.2 KiB
C++
// Copyright 2012 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/allocation.h"
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#include <stdlib.h> // For free, malloc.
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#include "src/base/bits.h"
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#include "src/base/logging.h"
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#include "src/base/platform/platform.h"
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#include "src/utils.h"
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#include "src/v8.h"
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#if V8_LIBC_BIONIC
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#include <malloc.h> // NOLINT
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#endif
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namespace v8 {
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namespace internal {
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void* Malloced::New(size_t size) {
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void* result = malloc(size);
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if (result == NULL) {
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V8::FatalProcessOutOfMemory("Malloced operator new");
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}
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return result;
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}
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void Malloced::Delete(void* p) {
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free(p);
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}
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#ifdef DEBUG
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static void* invalid = static_cast<void*>(NULL);
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void* Embedded::operator new(size_t size) {
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UNREACHABLE();
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return invalid;
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}
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void Embedded::operator delete(void* p) {
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UNREACHABLE();
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}
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void* AllStatic::operator new(size_t size) {
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UNREACHABLE();
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return invalid;
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}
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void AllStatic::operator delete(void* p) {
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UNREACHABLE();
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}
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#endif
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char* StrDup(const char* str) {
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int length = StrLength(str);
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char* result = NewArray<char>(length + 1);
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MemCopy(result, str, length);
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result[length] = '\0';
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return result;
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}
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char* StrNDup(const char* str, int n) {
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int length = StrLength(str);
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if (n < length) length = n;
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char* result = NewArray<char>(length + 1);
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MemCopy(result, str, length);
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result[length] = '\0';
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return result;
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}
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void* AlignedAlloc(size_t size, size_t alignment) {
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DCHECK_LE(V8_ALIGNOF(void*), alignment);
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DCHECK(base::bits::IsPowerOfTwo64(alignment));
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void* ptr;
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#if V8_OS_WIN
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ptr = _aligned_malloc(size, alignment);
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#elif V8_LIBC_BIONIC
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// posix_memalign is not exposed in some Android versions, so we fall back to
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// memalign. See http://code.google.com/p/android/issues/detail?id=35391.
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ptr = memalign(alignment, size);
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#else
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if (posix_memalign(&ptr, alignment, size)) ptr = NULL;
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#endif
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if (ptr == NULL) V8::FatalProcessOutOfMemory("AlignedAlloc");
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return ptr;
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}
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void AlignedFree(void *ptr) {
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#if V8_OS_WIN
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_aligned_free(ptr);
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#elif V8_LIBC_BIONIC
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// Using free is not correct in general, but for V8_LIBC_BIONIC it is.
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free(ptr);
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#else
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free(ptr);
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#endif
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}
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} } // namespace v8::internal
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