memory/build/fallback.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozmemory.h"
   8 #include "mozjemalloc.h"
   9 #include <stdlib.h>
  10
  11 #ifndef HAVE_MEMALIGN
  12 MOZ_MEMORY_API void* memalign(size_t aAlignment, size_t aSize) {
  13 #  ifdef XP_WIN
  14   return _aligned_malloc(aSize, aAlignment);
  15 #  else
  16   void* ret;
  17   if (posix_memalign(&ret, aAlignment, aSize) != 0) {
  18     return nullptr;
  19   }
  20   return ret;
  21 #  endif
  22 }
  23 #endif
  24
  25 struct SystemMalloc {
  26 #define MALLOC_DECL(name, return_type, ...)                                \
  27   static inline return_type name(ARGS_HELPER(TYPED_ARGS, ##__VA_ARGS__)) { \
  28     return ::name(ARGS_HELPER(ARGS, ##__VA_ARGS__));                       \
  29   }
  30 #define MALLOC_FUNCS MALLOC_FUNCS_MALLOC_BASE
  31 #include "malloc_decls.h"
  32 };
  33
  34 #define MALLOC_DECL(name, return_type, ...)                                   \
  35   MOZ_JEMALLOC_API return_type name(ARGS_HELPER(TYPED_ARGS, ##__VA_ARGS__)) { \
  36     return DummyArenaAllocator<SystemMalloc>::name(                           \
  37         ARGS_HELPER(ARGS, ##__VA_ARGS__));                                    \
  38   }
  39 #define MALLOC_FUNCS MALLOC_FUNCS_ARENA
  40 #include "malloc_decls.h"