Line data    Source code

       1             : // Copyright 2012 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #include "src/allocation.h"
       6             : 
       7             : #include <stdlib.h>  // For free, malloc.
       8             : #include "src/base/bits.h"
       9             : #include "src/base/logging.h"
      10             : #include "src/base/platform/platform.h"
      11             : #include "src/utils.h"
      12             : #include "src/v8.h"
      13             : 
      14             : #if V8_LIBC_BIONIC
      15             : #include <malloc.h>  // NOLINT
      16             : #endif
      17             : 
      18             : namespace v8 {
      19             : namespace internal {
      20             : 
      21   108126986 : void* Malloced::New(size_t size) {
      22   108126986 :   void* result = malloc(size);
      23   108126986 :   if (result == NULL) {
      24           0 :     V8::FatalProcessOutOfMemory("Malloced operator new");
      25             :   }
      26   108126986 :   return result;
      27             : }
      28             : 
      29             : 
      30   142474486 : void Malloced::Delete(void* p) {
      31   142474486 :   free(p);
      32   142474486 : }
      33             : 
      34             : 
      35   107604735 : char* StrDup(const char* str) {
      36             :   int length = StrLength(str);
      37   107604735 :   char* result = NewArray<char>(length + 1);
      38   107604735 :   MemCopy(result, str, length);
      39   107604735 :   result[length] = '\0';
      40   107604735 :   return result;
      41             : }
      42             : 
      43             : 
      44           0 : char* StrNDup(const char* str, int n) {
      45             :   int length = StrLength(str);
      46           0 :   if (n < length) length = n;
      47           0 :   char* result = NewArray<char>(length + 1);
      48           0 :   MemCopy(result, str, length);
      49           0 :   result[length] = '\0';
      50           0 :   return result;
      51             : }
      52             : 
      53             : 
      54         330 : void* AlignedAlloc(size_t size, size_t alignment) {
      55             :   DCHECK_LE(V8_ALIGNOF(void*), alignment);
      56             :   DCHECK(base::bits::IsPowerOfTwo64(alignment));
      57             :   void* ptr;
      58             : #if V8_OS_WIN
      59             :   ptr = _aligned_malloc(size, alignment);
      60             : #elif V8_LIBC_BIONIC
      61             :   // posix_memalign is not exposed in some Android versions, so we fall back to
      62             :   // memalign. See http://code.google.com/p/android/issues/detail?id=35391.
      63             :   ptr = memalign(alignment, size);
      64             : #else
      65         330 :   if (posix_memalign(&ptr, alignment, size)) ptr = NULL;
      66             : #endif
      67         330 :   if (ptr == NULL) V8::FatalProcessOutOfMemory("AlignedAlloc");
      68         330 :   return ptr;
      69             : }
      70             : 
      71             : 
      72         330 : void AlignedFree(void *ptr) {
      73             : #if V8_OS_WIN
      74             :   _aligned_free(ptr);
      75             : #elif V8_LIBC_BIONIC
      76             :   // Using free is not correct in general, but for V8_LIBC_BIONIC it is.
      77             :   free(ptr);
      78             : #else
      79         330 :   free(ptr);
      80             : #endif
      81         330 : }
      82             : 
      83             : }  // namespace internal
      84             : }  // namespace v8