1 /* cilk_malloc.c -*-C-*-
2 *
3 *************************************************************************
4 *
5 * @copyright
6 * Copyright (C) 2009-2013, Intel Corporation
7 * All rights reserved.
8 *
9 * @copyright
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * * Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * * Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 * * Neither the name of Intel Corporation nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * @copyright
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
31 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
32 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
33 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
35 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 **************************************************************************/
38
39 #include "cilk_malloc.h"
40
41 #include <stdlib.h>
42 #if defined _WIN32 || defined _WIN64 || defined __linux__
43 #include <malloc.h>
44 #define HAS_MEMALIGN 1
45 #endif
46 #ifdef __VXWORKS__
47 #define HAS_MEMALIGN 1
48 #include <memLib.h>
49 #endif
50
51 #define PREFERRED_ALIGNMENT 64 /* try to keep runtime system data
52 structures within one cache line */
53
__cilkrts_malloc(size_t size)54 void *__cilkrts_malloc(size_t size)
55 {
56 /* TODO: check for out of memory */
57 #ifdef _WIN32
58 return _aligned_malloc(size, PREFERRED_ALIGNMENT);
59 #elif defined HAS_MEMALIGN
60 return memalign(PREFERRED_ALIGNMENT, size);
61 #else
62 return malloc(size);
63 #endif
64 }
65
__cilkrts_realloc(void * ptr,size_t size)66 void *__cilkrts_realloc(void *ptr, size_t size)
67 {
68 #ifdef _WIN32
69 return _aligned_realloc(ptr, size, PREFERRED_ALIGNMENT);
70 #else
71 return realloc(ptr, size);
72 #endif
73 }
74
__cilkrts_free(void * ptr)75 void __cilkrts_free(void *ptr)
76 {
77 #ifdef _WIN32
78 _aligned_free(ptr);
79 #else
80 free(ptr);
81 #endif
82 }
83
84 /* End cilk_malloc.c */
85