| /* Copyright (C) 2005-2019 Free Software Foundation, Inc. |
| Contributed by Richard Henderson <rth@redhat.com>. |
| |
| This file is part of the GNU Offloading and Multi Processing Library |
| (libgomp). |
| |
| Libgomp is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* This file contains wrappers for the system allocation routines. Most |
| places in the OpenMP API do not make any provision for failure, so in |
| general we cannot allow memory allocation to fail. */ |
| |
| #define _GNU_SOURCE |
| #include "libgomp.h" |
| #include <stdlib.h> |
| |
| |
| void * |
| gomp_malloc (size_t size) |
| { |
| void *ret = malloc (size); |
| if (ret == NULL) |
| gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); |
| return ret; |
| } |
| |
| void * |
| gomp_malloc_cleared (size_t size) |
| { |
| void *ret = calloc (1, size); |
| if (ret == NULL) |
| gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); |
| return ret; |
| } |
| |
| void * |
| gomp_realloc (void *old, size_t size) |
| { |
| void *ret = realloc (old, size); |
| if (ret == NULL) |
| gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); |
| return ret; |
| } |
| |
| void * |
| gomp_aligned_alloc (size_t al, size_t size) |
| { |
| void *ret; |
| if (al < sizeof (void *)) |
| al = sizeof (void *); |
| #ifdef HAVE_ALIGNED_ALLOC |
| ret = aligned_alloc (al, size); |
| #elif defined(HAVE__ALIGNED_MALLOC) |
| ret = _aligned_malloc (size, al); |
| #elif defined(HAVE_POSIX_MEMALIGN) |
| if (posix_memalign (&ret, al, size) != 0) |
| ret = NULL; |
| #elif defined(HAVE_MEMALIGN) |
| { |
| extern void *memalign (size_t, size_t); |
| ret = memalign (al, size); |
| } |
| #else |
| ret = NULL; |
| if ((al & (al - 1)) == 0 && size) |
| { |
| void *p = malloc (size + al); |
| if (p) |
| { |
| void *ap = (void *) (((uintptr_t) p + al) & -al); |
| ((void **) ap)[-1] = p; |
| ret = ap; |
| } |
| } |
| #endif |
| if (ret == NULL) |
| gomp_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); |
| return ret; |
| } |
| |
| void |
| gomp_aligned_free (void *ptr) |
| { |
| #ifdef GOMP_HAVE_EFFICIENT_ALIGNED_ALLOC |
| free (ptr); |
| #else |
| if (ptr) |
| free (((void **) ptr)[-1]); |
| #endif |
| } |