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9c36d954 AT |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
88b9d363 | 3 | Copyright 2016-2022 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 | { | |
6179e5f1 TV |
30 | volatile int dummy = 0; |
31 | while (1) | |
32 | /* Dummy loop body to allow setting breakpoint. */ | |
33 | dummy = !dummy; /* thread loop line */ | |
9c36d954 AT |
34 | } |
35 | ||
36 | static void * | |
37 | child_function (void *args) | |
38 | { | |
39 | pthread_barrier_wait (&barrier); | |
40 | ||
41 | child_sub_function (); /* thread caller line */ | |
42 | ||
43 | return NULL; | |
44 | } | |
45 | ||
46 | int | |
47 | main (void) | |
48 | { | |
49 | int i = 0; | |
50 | pthread_t threads[NUM_THREADS]; | |
51 | ||
52 | /* Make the test exit eventually. */ | |
53 | alarm (20); | |
54 | ||
55 | /* Initialize the barrier, NUM_THREADS plus the main thread. */ | |
56 | pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1); | |
57 | ||
58 | for (i = 0; i < NUM_THREADS; i++) | |
59 | pthread_create (&threads[i], NULL, child_function, NULL); | |
60 | ||
61 | pthread_barrier_wait (&barrier); | |
62 | ||
6179e5f1 TV |
63 | volatile int dummy = 0; |
64 | while (1) | |
65 | /* Dummy loop body to allow setting breakpoint. */ | |
66 | dummy = !dummy; /* main break line */ | |
9c36d954 AT |
67 | |
68 | return 0; | |
69 | } |