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fbd26352 | 1 | /* Copyright (C) 2005-2019 Free Software Foundation, Inc. |
1e8e9920 | 2 | Contributed by Richard Henderson <rth@redhat.com>. |
3 | ||
c35c9a62 | 4 | This file is part of the GNU Offloading and Multi Processing Library |
5 | (libgomp). | |
1e8e9920 | 6 | |
7 | Libgomp is free software; you can redistribute it and/or modify it | |
6bc9506f | 8 | under the terms of the GNU General Public License as published by |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
1e8e9920 | 11 | |
12 | Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
6bc9506f | 14 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
1e8e9920 | 15 | more details. |
16 | ||
6bc9506f | 17 | Under Section 7 of GPL version 3, you are granted additional |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
1e8e9920 | 25 | |
26 | /* This file contains wrappers for the system allocation routines. Most | |
27 | places in the OpenMP API do not make any provision for failure, so in | |
28 | general we cannot allow memory allocation to fail. */ | |
29 | ||
30 | #include "libgomp.h" | |
31 | #include <stdlib.h> | |
32 | ||
33 | ||
34 | void * | |
35 | gomp_malloc (size_t size) | |
36 | { | |
37 | void *ret = malloc (size); | |
38 | if (ret == NULL) | |
39 | gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); | |
40 | return ret; | |
41 | } | |
42 | ||
43 | void * | |
44 | gomp_malloc_cleared (size_t size) | |
45 | { | |
46 | void *ret = calloc (1, size); | |
47 | if (ret == NULL) | |
48 | gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); | |
49 | return ret; | |
50 | } | |
51 | ||
52 | void * | |
53 | gomp_realloc (void *old, size_t size) | |
54 | { | |
55 | void *ret = realloc (old, size); | |
56 | if (ret == NULL) | |
57 | gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); | |
58 | return ret; | |
59 | } | |
7e5a76c8 | 60 | |
61 | void * | |
62 | gomp_aligned_alloc (size_t al, size_t size) | |
63 | { | |
64 | void *ret; | |
65 | if (al < sizeof (void *)) | |
66 | al = sizeof (void *); | |
67 | #ifdef HAVE_ALIGNED_ALLOC | |
68 | ret = aligned_alloc (al, size); | |
69 | #elif defined(HAVE__ALIGNED_MALLOC) | |
70 | ret = _aligned_malloc (size, al); | |
71 | #elif defined(HAVE_POSIX_MEMALIGN) | |
72 | if (posix_memalign (&ret, al, size) != 0) | |
73 | ret = NULL; | |
74 | #elif defined(HAVE_MEMALIGN) | |
75 | { | |
76 | extern void *memalign (size_t, size_t); | |
77 | ret = memalign (al, size); | |
78 | } | |
79 | #else | |
80 | ret = NULL; | |
81 | if ((al & (al - 1)) == 0 && size) | |
82 | { | |
83 | void *p = malloc (size + al); | |
84 | if (p) | |
85 | { | |
86 | void *ap = (void *) (((uintptr_t) p + al) & -al); | |
87 | ((void **) ap)[-1] = p; | |
88 | ret = ap; | |
89 | } | |
90 | } | |
91 | #endif | |
92 | if (ret == NULL) | |
93 | gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); | |
94 | return ret; | |
95 | } | |
96 | ||
97 | void | |
98 | gomp_aligned_free (void *ptr) | |
99 | { | |
100 | #ifdef GOMP_HAVE_EFFICIENT_ALIGNED_ALLOC | |
101 | free (ptr); | |
102 | #else | |
103 | if (ptr) | |
104 | free (((void **) ptr)[-1]); | |
105 | #endif | |
106 | } |