gcc/libcilkrts/runtime/cilk_malloc.c

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/* cilk_malloc.c -*-C-*-
*
*************************************************************************
*
* @copyright
* Copyright (C) 2009-2013, Intel Corporation
* All rights reserved.
*
* @copyright
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* @copyright
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
**************************************************************************/
#include "cilk_malloc.h"
#include <stdlib.h>
#if defined _WIN32 || defined _WIN64 || defined __linux__
#include <malloc.h>
#define HAS_MEMALIGN 1
#endif
#ifdef __VXWORKS__
#define HAS_MEMALIGN 1
#include <memLib.h>
#endif
#define PREFERRED_ALIGNMENT 64 /* try to keep runtime system data
structures within one cache line */
void *__cilkrts_malloc(size_t size)
{
/* TODO: check for out of memory */
#ifdef _WIN32
return _aligned_malloc(size, PREFERRED_ALIGNMENT);
#elif defined HAS_MEMALIGN
return memalign(PREFERRED_ALIGNMENT, size);
#else
return malloc(size);
#endif
}
void *__cilkrts_realloc(void *ptr, size_t size)
{
#ifdef _WIN32
return _aligned_realloc(ptr, size, PREFERRED_ALIGNMENT);
#else
return realloc(ptr, size);
#endif
}
void __cilkrts_free(void *ptr)
{
#ifdef _WIN32
_aligned_free(ptr);
#else
free(ptr);
#endif
}
/* End cilk_malloc.c */