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1 /* Copyright (C) 2006-2020 Free Software Foundation, Inc.
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2 Contributed by Jakub Jelinek <jakub@redhat.com>.
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3
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4 This file is part of the GNU Offloading and Multi Processing Library
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5 (libgomp).
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6
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7 Libgomp is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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14 FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 Under Section 7 of GPL version 3, you are granted additional
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18 permissions described in the GCC Runtime Library Exception, version
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19 3.1, as published by the Free Software Foundation.
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20
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21 You should have received a copy of the GNU General Public License and
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22 a copy of the GCC Runtime Library Exception along with this program;
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23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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24 <http://www.gnu.org/licenses/>. */
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25
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26 /* This is a generic stub implementation of a CPU affinity setting. */
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27
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28 #include "libgomp.h"
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29 #include <string.h>
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30 #include <stdio.h>
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111
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31
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32 void
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33 gomp_init_affinity (void)
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34 {
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35 }
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36
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37 #ifdef LIBGOMP_USE_PTHREADS
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38 void
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39 gomp_init_thread_affinity (pthread_attr_t *attr, unsigned int place)
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40 {
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41 (void) attr;
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42 (void) place;
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43 }
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44 #endif
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45
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46 void **
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47 gomp_affinity_alloc (unsigned long count, bool quiet)
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48 {
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49 (void) count;
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50 if (!quiet)
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51 gomp_error ("Affinity not supported on this configuration");
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52 return NULL;
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53 }
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54
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55 void
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56 gomp_affinity_init_place (void *p)
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57 {
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58 (void) p;
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59 }
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60
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61 bool
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62 gomp_affinity_add_cpus (void *p, unsigned long num,
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63 unsigned long len, long stride, bool quiet)
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64 {
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65 (void) p;
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66 (void) num;
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67 (void) len;
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68 (void) stride;
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69 (void) quiet;
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70 return false;
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71 }
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72
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73 bool
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74 gomp_affinity_remove_cpu (void *p, unsigned long num)
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75 {
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76 (void) p;
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77 (void) num;
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78 return false;
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79 }
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80
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81 bool
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82 gomp_affinity_copy_place (void *p, void *q, long stride)
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83 {
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84 (void) p;
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85 (void) q;
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86 (void) stride;
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87 return false;
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88 }
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89
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90 bool
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91 gomp_affinity_same_place (void *p, void *q)
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92 {
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93 (void) p;
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94 (void) q;
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95 return false;
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96 }
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97
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98 bool
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99 gomp_affinity_finalize_place_list (bool quiet)
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100 {
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101 (void) quiet;
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102 return false;
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103 }
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104
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105 bool
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106 gomp_affinity_init_level (int level, unsigned long count, bool quiet)
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107 {
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108 (void) level;
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109 (void) count;
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110 (void) quiet;
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111 if (!quiet)
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112 gomp_error ("Affinity not supported on this configuration");
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113 return NULL;
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114 }
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115
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116 void
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117 gomp_affinity_print_place (void *p)
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118 {
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119 (void) p;
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120 }
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121
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122 int
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123 omp_get_place_num_procs (int place_num)
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124 {
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125 (void) place_num;
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126 return 0;
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127 }
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128
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129 void
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130 omp_get_place_proc_ids (int place_num, int *ids)
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131 {
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132 (void) place_num;
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133 (void) ids;
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134 }
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135
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136 void
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137 gomp_get_place_proc_ids_8 (int place_num, int64_t *ids)
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138 {
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139 (void) place_num;
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140 (void) ids;
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141 }
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142
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145
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143 void
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144 gomp_display_affinity_place (char *buffer, size_t size, size_t *ret,
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145 int place)
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146 {
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147 char buf[sizeof (long) * 3 + 4];
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148 if (gomp_available_cpus > 1)
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149 sprintf (buf, "0-%lu", gomp_available_cpus - 1);
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150 else
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151 strcpy (buf, "0");
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152 gomp_display_string (buffer, size, ret, buf, strlen (buf));
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153 }
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154
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111
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155 ialias(omp_get_place_num_procs)
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156 ialias(omp_get_place_proc_ids)
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