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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; | |
337532fa YQ |
25 | /* Allow for as much timeout as DejaGnu wants, plus a bit of |
26 | slack. */ | |
27 | #define SECONDS (TIMEOUT + 20) | |
ede9f622 PA |
28 | |
29 | pthread_t child_thread[NUM_THREADS]; | |
30 | volatile pthread_t signal_thread; | |
31 | volatile int got_sig; | |
32 | ||
33 | void | |
34 | handler (int signo) | |
35 | { | |
36 | got_sig = 1; | |
37 | } | |
38 | ||
39 | void | |
40 | loop_broke (void) | |
41 | { | |
42 | } | |
43 | ||
44 | #define INF_LOOP \ | |
45 | do \ | |
46 | { \ | |
47 | while (!got_sig) \ | |
48 | ; \ | |
49 | } \ | |
50 | while (0) | |
51 | ||
52 | void * | |
53 | child_function (void *arg) | |
54 | { | |
55 | pthread_t self = pthread_self (); | |
56 | ||
57 | while (1) | |
58 | { | |
337532fa YQ |
59 | /* Reset the timer before going to INF_LOOP. */ |
60 | alarm (SECONDS); | |
ede9f622 PA |
61 | INF_LOOP; /* set thread breakpoint here */ |
62 | loop_broke (); | |
63 | } | |
64 | } | |
65 | ||
66 | int | |
67 | main (void) | |
68 | { | |
69 | int res; | |
70 | int i; | |
71 | ||
ede9f622 PA |
72 | signal (SIGUSR1, handler); |
73 | ||
74 | for (i = 0; i < NUM_THREADS; i++) | |
75 | { | |
76 | res = pthread_create (&child_thread[i], NULL, child_function, NULL); | |
77 | } | |
78 | ||
79 | while (1) | |
80 | { | |
81 | pthread_kill (signal_thread, SIGUSR1); /* set kill breakpoint here */ | |
337532fa YQ |
82 | /* Reset the timer before going to INF_LOOP. */ |
83 | alarm (SECONDS); | |
ede9f622 PA |
84 | INF_LOOP; |
85 | loop_broke (); | |
86 | } | |
87 | ||
88 | exit(EXIT_SUCCESS); | |
89 | } |