1 /* Copyright (C) 2006-2019 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
32 void
gomp_init_affinity(void)33 gomp_init_affinity (void)
34 {
35 }
36
37 #ifdef LIBGOMP_USE_PTHREADS
38 void
gomp_init_thread_affinity(pthread_attr_t * attr,unsigned int place)39 gomp_init_thread_affinity (pthread_attr_t *attr, unsigned int place)
40 {
41 (void) attr;
42 (void) place;
43 }
44 #endif
45
46 void **
gomp_affinity_alloc(unsigned long count,bool quiet)47 gomp_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
55 void
gomp_affinity_init_place(void * p)56 gomp_affinity_init_place (void *p)
57 {
58 (void) p;
59 }
60
61 bool
gomp_affinity_add_cpus(void * p,unsigned long num,unsigned long len,long stride,bool quiet)62 gomp_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
73 bool
gomp_affinity_remove_cpu(void * p,unsigned long num)74 gomp_affinity_remove_cpu (void *p, unsigned long num)
75 {
76 (void) p;
77 (void) num;
78 return false;
79 }
80
81 bool
gomp_affinity_copy_place(void * p,void * q,long stride)82 gomp_affinity_copy_place (void *p, void *q, long stride)
83 {
84 (void) p;
85 (void) q;
86 (void) stride;
87 return false;
88 }
89
90 bool
gomp_affinity_same_place(void * p,void * q)91 gomp_affinity_same_place (void *p, void *q)
92 {
93 (void) p;
94 (void) q;
95 return false;
96 }
97
98 bool
gomp_affinity_finalize_place_list(bool quiet)99 gomp_affinity_finalize_place_list (bool quiet)
100 {
101 (void) quiet;
102 return false;
103 }
104
105 bool
gomp_affinity_init_level(int level,unsigned long count,bool quiet)106 gomp_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
116 void
gomp_affinity_print_place(void * p)117 gomp_affinity_print_place (void *p)
118 {
119 (void) p;
120 }
121
122 int
omp_get_place_num_procs(int place_num)123 omp_get_place_num_procs (int place_num)
124 {
125 (void) place_num;
126 return 0;
127 }
128
129 void
omp_get_place_proc_ids(int place_num,int * ids)130 omp_get_place_proc_ids (int place_num, int *ids)
131 {
132 (void) place_num;
133 (void) ids;
134 }
135
136 void
gomp_get_place_proc_ids_8(int place_num,int64_t * ids)137 gomp_get_place_proc_ids_8 (int place_num, int64_t *ids)
138 {
139 (void) place_num;
140 (void) ids;
141 }
142
143 void
gomp_display_affinity_place(char * buffer,size_t size,size_t * ret,int place)144 gomp_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
155 ialias(omp_get_place_num_procs)
156 ialias(omp_get_place_proc_ids)
157