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1c5cfe86 PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
e2882c85 | 3 | Copyright 2002-2018 Free Software Foundation, Inc. |
1c5cfe86 PA |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | ||
18 | This file is based on schedlock.c. */ | |
19 | ||
20 | #include <stdio.h> | |
21 | #include <unistd.h> | |
22 | #include <stdlib.h> | |
23 | #include <pthread.h> | |
24 | ||
25 | int THREADS = 10; | |
26 | unsigned int *args; | |
27 | volatile int done = 0; | |
28 | ||
29 | void * | |
30 | thread_function (void *arg) | |
31 | { | |
32 | int my_number = (long) arg; | |
33 | volatile int *myp = (volatile int *) &args[my_number]; | |
34 | ||
35 | /* Don't run forever. Run just short of it :) */ | |
36 | while (*myp > 0 && !done) | |
37 | { | |
38 | (*myp)++; /* set breakpoint here */ | |
39 | } | |
40 | ||
41 | if (done) | |
42 | usleep (100); /* Some time to make sure we don't mask any bad | |
43 | SIGTRAP handling. */ | |
44 | ||
45 | pthread_exit (NULL); | |
46 | } | |
47 | ||
48 | int | |
49 | main (int argc, char **argv) | |
50 | { | |
51 | int res; | |
52 | pthread_t *threads; | |
53 | void *thread_result; | |
54 | long i = 0; | |
55 | ||
56 | threads = malloc (THREADS * sizeof (pthread_t)); | |
57 | args = malloc (THREADS * sizeof (unsigned int)); | |
58 | ||
59 | for (i = 0; i < THREADS; i++) | |
60 | { | |
61 | args[i] = 1; /* Init value. */ | |
62 | res = pthread_create (&threads[i], | |
63 | NULL, | |
64 | thread_function, | |
65 | (void *) i); | |
66 | } | |
67 | ||
68 | for (i = 0; i < THREADS; i++) | |
69 | pthread_join (threads[i], &thread_result); | |
70 | ||
71 | exit(EXIT_SUCCESS); | |
72 | } |