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1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
e2882c85 | 3 | Copyright 2015-2018 Free Software Foundation, Inc. |
83e97ed0 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 <assert.h> | |
19 | #include <pthread.h> | |
20 | #include <unistd.h> | |
21 | ||
22 | /* Number of threads. Each thread continuously steps over a | |
23 | breakpoint. */ | |
24 | #define NTHREADS 10 | |
25 | ||
26 | pthread_t threads[NTHREADS]; | |
27 | ||
28 | pthread_barrier_t barrier; | |
29 | ||
30 | /* Used to create a conditional breakpoint that always fails. */ | |
31 | volatile int zero; | |
32 | ||
33 | static void * | |
34 | thread_func (void *arg) | |
35 | { | |
36 | pthread_barrier_wait (&barrier); | |
37 | ||
38 | while (1) | |
39 | { | |
40 | usleep (1); /* set break here */ | |
41 | } | |
42 | ||
43 | return NULL; | |
44 | } | |
45 | ||
46 | int | |
47 | main (void) | |
48 | { | |
49 | int ret; | |
50 | int i; | |
51 | ||
52 | /* Don't run forever. */ | |
53 | alarm (180); | |
54 | ||
55 | pthread_barrier_init (&barrier, NULL, NTHREADS + 1); | |
56 | ||
57 | /* Start the threads that constantly hits a conditional breakpoint | |
58 | that needs to be stepped over. */ | |
59 | for (i = 0; i < NTHREADS; i++) | |
60 | { | |
61 | ret = pthread_create (&threads[i], NULL, thread_func, NULL); | |
62 | assert (ret == 0); | |
63 | } | |
64 | ||
65 | /* Wait until all threads are up and running. */ | |
66 | pthread_barrier_wait (&barrier); | |
67 | ||
68 | /* Let them start hitting the breakpoint. */ | |
69 | usleep (100); | |
70 | ||
71 | /* Exit abruptly. */ | |
72 | return 0; | |
73 | } |