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ede9f622 PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
3 | Copyright 2014-2015 Free Software Foundation, Inc. | |
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 | #include <signal.h> | |
22 | ||
23 | #define NUM_THREADS 10 | |
24 | const int num_threads = NUM_THREADS; | |
25 | ||
26 | pthread_t child_thread[NUM_THREADS]; | |
27 | volatile pthread_t signal_thread; | |
28 | volatile int got_sig; | |
29 | ||
30 | void | |
31 | handler (int signo) | |
32 | { | |
33 | got_sig = 1; | |
34 | } | |
35 | ||
36 | void | |
37 | loop_broke (void) | |
38 | { | |
39 | } | |
40 | ||
41 | #define INF_LOOP \ | |
42 | do \ | |
43 | { \ | |
44 | while (!got_sig) \ | |
45 | ; \ | |
46 | } \ | |
47 | while (0) | |
48 | ||
49 | void * | |
50 | child_function (void *arg) | |
51 | { | |
52 | pthread_t self = pthread_self (); | |
53 | ||
54 | while (1) | |
55 | { | |
56 | INF_LOOP; /* set thread breakpoint here */ | |
57 | loop_broke (); | |
58 | } | |
59 | } | |
60 | ||
61 | int | |
62 | main (void) | |
63 | { | |
64 | int res; | |
65 | int i; | |
66 | ||
67 | alarm (60); | |
68 | ||
69 | signal (SIGUSR1, handler); | |
70 | ||
71 | for (i = 0; i < NUM_THREADS; i++) | |
72 | { | |
73 | res = pthread_create (&child_thread[i], NULL, child_function, NULL); | |
74 | } | |
75 | ||
76 | while (1) | |
77 | { | |
78 | pthread_kill (signal_thread, SIGUSR1); /* set kill breakpoint here */ | |
79 | INF_LOOP; | |
80 | loop_broke (); | |
81 | } | |
82 | ||
83 | exit(EXIT_SUCCESS); | |
84 | } |