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99619bea PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
32d0add0 | 3 | Copyright 2009-2015 Free Software Foundation, Inc. |
99619bea 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 <pthread.h> | |
19 | #include <unistd.h> | |
20 | #include <stdlib.h> | |
21 | #include <signal.h> | |
22 | ||
23 | unsigned int args[2]; | |
24 | ||
25 | pthread_barrier_t barrier; | |
26 | pthread_t child_thread_2, child_thread_3; | |
27 | ||
f3770638 PA |
28 | void |
29 | sigusr1_handler (int signo) | |
30 | { | |
31 | } | |
32 | ||
99619bea PA |
33 | void |
34 | callme (void) | |
35 | { | |
36 | } | |
37 | ||
38 | void * | |
39 | child_function_3 (void *arg) | |
40 | { | |
41 | int my_number = (long) arg; | |
42 | volatile int *myp = (int *) &args[my_number]; | |
43 | ||
44 | pthread_barrier_wait (&barrier); | |
45 | ||
46 | while (*myp > 0) | |
47 | { | |
48 | (*myp) ++; | |
49 | callme (); /* set breakpoint thread 3 here */ | |
50 | } | |
51 | ||
52 | pthread_exit (NULL); | |
53 | } | |
54 | ||
55 | void * | |
56 | child_function_2 (void *arg) | |
57 | { | |
58 | int my_number = (long) arg; | |
59 | volatile int *myp = (int *) &args[my_number]; | |
60 | ||
61 | pthread_barrier_wait (&barrier); | |
62 | ||
63 | while (*myp > 0) | |
64 | { | |
65 | (*myp) ++; | |
66 | callme (); /* set breakpoint thread 2 here */ | |
67 | } | |
68 | ||
69 | pthread_exit (NULL); | |
70 | } | |
71 | ||
72 | static int | |
73 | wait_threads (void) | |
74 | { | |
75 | return 1; /* in wait_threads */ | |
76 | } | |
77 | ||
78 | int | |
79 | main () | |
80 | { | |
81 | int res; | |
82 | long i; | |
83 | ||
f3770638 PA |
84 | signal (SIGUSR1, sigusr1_handler); |
85 | ||
99619bea PA |
86 | /* Call these early so that PLTs for these are resolved soon, |
87 | instead of in the threads. RTLD_NOW should work as well. */ | |
88 | usleep (0); | |
89 | pthread_barrier_init (&barrier, NULL, 1); | |
90 | pthread_barrier_wait (&barrier); | |
91 | ||
92 | pthread_barrier_init (&barrier, NULL, 2); | |
93 | ||
94 | i = 0; | |
95 | args[i] = 1; | |
96 | res = pthread_create (&child_thread_2, | |
97 | NULL, child_function_2, (void *) i); | |
98 | pthread_barrier_wait (&barrier); | |
99 | callme (); | |
100 | ||
101 | i = 1; | |
102 | args[i] = 1; | |
103 | res = pthread_create (&child_thread_3, | |
104 | NULL, child_function_3, (void *) i); | |
105 | pthread_barrier_wait (&barrier); | |
106 | wait_threads (); /* set wait-threads breakpoint here */ | |
107 | ||
108 | pthread_join (child_thread_2, NULL); | |
109 | pthread_join (child_thread_3, NULL); | |
110 | ||
111 | exit(EXIT_SUCCESS); | |
112 | } |