1// Copyright (c) 2007, Google Inc.
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met:
7//
8//     * Redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer.
10//     * Redistributions in binary form must reproduce the above
11// copyright notice, this list of conditions and the following disclaimer
12// in the documentation and/or other materials provided with the
13// distribution.
14//     * Neither the name of Google Inc. nor the names of its
15// contributors may be used to endorse or promote products derived from
16// this software without specific prior written permission.
17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30// ---
31// Author: Craig Silverstein <opensource@google.com>
32//
33// Some obscure memory-allocation routines may not be declared on all
34// systems.  In those cases, we'll just declare them ourselves.
35// This file is meant to be used only internally, for unittests.
36
37#include <config.h>
38
39#ifndef _XOPEN_SOURCE
40# define _XOPEN_SOURCE 600  // for posix_memalign
41#endif
42#include <stdlib.h>         // for posix_memalign
43// FreeBSD has malloc.h, but complains if you use it
44#if defined(HAVE_MALLOC_H) && !defined(__FreeBSD__)
45#include <malloc.h>         // for memalign, valloc, pvalloc
46#endif
47
48// __THROW is defined in glibc systems.  It means, counter-intuitively,
49// "This function will never throw an exception."  It's an optional
50// optimization tool, but we may need to use it to match glibc prototypes.
51#ifndef __THROW    // I guess we're not on a glibc system
52# define __THROW   // __THROW is just an optimization, so ok to make it ""
53#endif
54
55#if !HAVE_CFREE_SYMBOL
56extern "C" void cfree(void* ptr) __THROW;
57#endif
58#if !HAVE_POSIX_MEMALIGN_SYMBOL
59extern "C" int posix_memalign(void** ptr, size_t align, size_t size) __THROW;
60#endif
61#if !HAVE_MEMALIGN_SYMBOL
62extern "C" void* memalign(size_t __alignment, size_t __size) __THROW;
63#endif
64#if !HAVE_VALLOC_SYMBOL
65extern "C" void* valloc(size_t __size) __THROW;
66#endif
67#if !HAVE_PVALLOC_SYMBOL
68extern "C" void* pvalloc(size_t __size) __THROW;
69#endif
70