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c65d6b55 PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
e2882c85 | 3 | Copyright 2016-2018 Free Software Foundation, Inc. |
c65d6b55 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 | #include <pthread.h> | |
19 | #include <unistd.h> | |
20 | #include <stdlib.h> | |
21 | ||
22 | #define NUM_THREADS 20 | |
23 | const int num_threads = NUM_THREADS; | |
24 | ||
25 | static pthread_t child_thread[NUM_THREADS]; | |
26 | ||
27 | static pthread_barrier_t threads_started_barrier; | |
28 | ||
29 | volatile int always_zero; | |
30 | volatile unsigned int dummy; | |
31 | ||
32 | static void | |
33 | infinite_loop (void) | |
34 | { | |
35 | while (1) | |
36 | { | |
37 | dummy++; /* set breakpoint here */ | |
38 | } | |
39 | } | |
40 | ||
41 | static void * | |
42 | child_function (void *arg) | |
43 | { | |
44 | pthread_barrier_wait (&threads_started_barrier); | |
45 | ||
46 | infinite_loop (); | |
47 | } | |
48 | ||
49 | void | |
50 | all_started (void) | |
51 | { | |
52 | } | |
53 | ||
54 | int | |
55 | main (void) | |
56 | { | |
57 | int res; | |
58 | int i; | |
59 | ||
60 | alarm (300); | |
61 | ||
62 | pthread_barrier_init (&threads_started_barrier, NULL, NUM_THREADS + 1); | |
63 | ||
64 | for (i = 0; i < NUM_THREADS; i++) | |
65 | { | |
66 | res = pthread_create (&child_thread[i], NULL, child_function, NULL); | |
67 | } | |
68 | ||
69 | /* Wait until all threads have been scheduled. */ | |
70 | pthread_barrier_wait (&threads_started_barrier); | |
71 | ||
72 | all_started (); | |
73 | ||
74 | infinite_loop (); | |
75 | } |