mirror of git://gcc.gnu.org/git/gcc.git
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/* Copyright (C) 2013-2014 Free Software Foundation, Inc.
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Contributed by Jakub Jelinek <jakub@redhat.com>.
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This file is part of the GNU OpenMP Library (libgomp).
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Libgomp is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* This file handles the maintainence of threads in response to team
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creation and termination. */
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#include "libgomp.h"
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#include <limits.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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attribute_hidden int
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gomp_get_num_devices (void)
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{
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return 0;
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}
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/* Called when encountering a target directive. If DEVICE
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is -1, it means use device-var ICV. If it is -2 (or any other value
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larger than last available hw device, use host fallback.
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FN is address of host code, OPENMP_TARGET contains value of the
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__OPENMP_TARGET__ symbol in the shared library or binary that invokes
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GOMP_target. HOSTADDRS, SIZES and KINDS are arrays
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with MAPNUM entries, with addresses of the host objects,
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sizes of the host objects (resp. for pointer kind pointer bias
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and assumed sizeof (void *) size) and kinds. */
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void
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GOMP_target (int device, void (*fn) (void *), const void *openmp_target,
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size_t mapnum, void **hostaddrs, size_t *sizes,
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unsigned char *kinds)
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{
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/* Host fallback. */
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struct gomp_thread old_thr, *thr = gomp_thread ();
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old_thr = *thr;
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memset (thr, '\0', sizeof (*thr));
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if (gomp_places_list)
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{
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thr->place = old_thr.place;
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thr->ts.place_partition_len = gomp_places_list_len;
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}
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fn (hostaddrs);
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gomp_free_thread (thr);
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*thr = old_thr;
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}
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void
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GOMP_target_data (int device, const void *openmp_target, size_t mapnum,
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void **hostaddrs, size_t *sizes, unsigned char *kinds)
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{
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}
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void
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GOMP_target_end_data (void)
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{
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}
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void
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GOMP_target_update (int device, const void *openmp_target, size_t mapnum,
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void **hostaddrs, size_t *sizes, unsigned char *kinds)
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{
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}
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void
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GOMP_teams (unsigned int num_teams, unsigned int thread_limit)
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{
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if (thread_limit)
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{
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struct gomp_task_icv *icv = gomp_icv (true);
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icv->thread_limit_var
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= thread_limit > INT_MAX ? UINT_MAX : thread_limit;
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}
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(void) num_teams;
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}
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