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9c36d954 AT |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
b811d2c2 | 3 | Copyright 2016-2020 Free Software Foundation, Inc. |
9c36d954 AT |
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 | */ | |
19 | ||
20 | #include <pthread.h> | |
21 | #include <unistd.h> | |
22 | ||
23 | #define NUM_THREADS 2 | |
24 | ||
25 | static pthread_barrier_t barrier; | |
26 | ||
27 | static void | |
28 | child_sub_function (void) | |
29 | { | |
30 | while (1); /* thread loop line */ | |
31 | } | |
32 | ||
33 | static void * | |
34 | child_function (void *args) | |
35 | { | |
36 | pthread_barrier_wait (&barrier); | |
37 | ||
38 | child_sub_function (); /* thread caller line */ | |
39 | ||
40 | return NULL; | |
41 | } | |
42 | ||
43 | int | |
44 | main (void) | |
45 | { | |
46 | int i = 0; | |
47 | pthread_t threads[NUM_THREADS]; | |
48 | ||
49 | /* Make the test exit eventually. */ | |
50 | alarm (20); | |
51 | ||
52 | /* Initialize the barrier, NUM_THREADS plus the main thread. */ | |
53 | pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1); | |
54 | ||
55 | for (i = 0; i < NUM_THREADS; i++) | |
56 | pthread_create (&threads[i], NULL, child_function, NULL); | |
57 | ||
58 | pthread_barrier_wait (&barrier); | |
59 | ||
60 | while (1); /* main break line */ | |
61 | ||
62 | return 0; | |
63 | } |