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