1/* Copyright (C) 2006-2020 Free Software Foundation, Inc. 2 Contributed by Jakub Jelinek <jakub@redhat.com>. 3 4 This file is part of the GNU Offloading and Multi Processing Library 5 (libgomp). 6 7 Libgomp is free software; you can redistribute it and/or modify it 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. 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 14 FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 more details. 16 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/>. */ 25 26/* This is a generic stub implementation of a CPU affinity setting. */ 27 28#include "libgomp.h" 29#include <string.h> 30#include <stdio.h> 31 32void 33gomp_init_affinity (void) 34{ 35} 36 37#ifdef LIBGOMP_USE_PTHREADS 38void 39gomp_init_thread_affinity (pthread_attr_t *attr, unsigned int place) 40{ 41 (void) attr; 42 (void) place; 43} 44#endif 45 46void ** 47gomp_affinity_alloc (unsigned long count, bool quiet) 48{ 49 (void) count; 50 if (!quiet) 51 gomp_error ("Affinity not supported on this configuration"); 52 return NULL; 53} 54 55void 56gomp_affinity_init_place (void *p) 57{ 58 (void) p; 59} 60 61bool 62gomp_affinity_add_cpus (void *p, unsigned long num, 63 unsigned long len, long stride, bool quiet) 64{ 65 (void) p; 66 (void) num; 67 (void) len; 68 (void) stride; 69 (void) quiet; 70 return false; 71} 72 73bool 74gomp_affinity_remove_cpu (void *p, unsigned long num) 75{ 76 (void) p; 77 (void) num; 78 return false; 79} 80 81bool 82gomp_affinity_copy_place (void *p, void *q, long stride) 83{ 84 (void) p; 85 (void) q; 86 (void) stride; 87 return false; 88} 89 90bool 91gomp_affinity_same_place (void *p, void *q) 92{ 93 (void) p; 94 (void) q; 95 return false; 96} 97 98bool 99gomp_affinity_finalize_place_list (bool quiet) 100{ 101 (void) quiet; 102 return false; 103} 104 105bool 106gomp_affinity_init_level (int level, unsigned long count, bool quiet) 107{ 108 (void) level; 109 (void) count; 110 (void) quiet; 111 if (!quiet) 112 gomp_error ("Affinity not supported on this configuration"); 113 return NULL; 114} 115 116void 117gomp_affinity_print_place (void *p) 118{ 119 (void) p; 120} 121 122int 123omp_get_place_num_procs (int place_num) 124{ 125 (void) place_num; 126 return 0; 127} 128 129void 130omp_get_place_proc_ids (int place_num, int *ids) 131{ 132 (void) place_num; 133 (void) ids; 134} 135 136void 137gomp_get_place_proc_ids_8 (int place_num, int64_t *ids) 138{ 139 (void) place_num; 140 (void) ids; 141} 142 143void 144gomp_display_affinity_place (char *buffer, size_t size, size_t *ret, 145 int place) 146{ 147 char buf[sizeof (long) * 3 + 4]; 148 if (gomp_available_cpus > 1) 149 sprintf (buf, "0-%lu", gomp_available_cpus - 1); 150 else 151 strcpy (buf, "0"); 152 gomp_display_string (buffer, size, ret, buf, strlen (buf)); 153} 154 155ialias(omp_get_place_num_procs) 156ialias(omp_get_place_proc_ids) 157