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1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
3666a048 | 3 | Copyright 2017-2021 Free Software Foundation, Inc. |
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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 <stdio.h> | |
19 | #include <stdlib.h> | |
20 | #include <string.h> | |
21 | #include <sys/types.h> | |
22 | #include <unistd.h> | |
23 | #include <pthread.h> | |
24 | #include <errno.h> | |
25 | ||
9fc3183f AH |
26 | /* This barrier ensures we only reach the initial breakpoint after both threads |
27 | have set errno. */ | |
28 | pthread_barrier_t start_threads_barrier; | |
29 | ||
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30 | static void |
31 | break_here (void) | |
32 | { | |
33 | } | |
34 | ||
35 | static void * | |
36 | thread_routine (void *arg) | |
37 | { | |
38 | errno = 42; | |
9fc3183f | 39 | pthread_barrier_wait (&start_threads_barrier); |
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40 | |
41 | break_here (); | |
42 | ||
43 | while (1) | |
44 | sleep (1); | |
45 | ||
46 | return NULL; | |
47 | } | |
48 | ||
49 | int | |
50 | main (int argc, char *argv) | |
51 | { | |
52 | pthread_t the_thread; | |
53 | int err; | |
54 | ||
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55 | pthread_barrier_init (&start_threads_barrier, NULL, 2); |
56 | ||
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57 | err = pthread_create (&the_thread, NULL, thread_routine, NULL); |
58 | if (err != 0) | |
59 | { | |
60 | fprintf (stderr, "pthread_create: %s (%d)\n", strerror (err), err); | |
61 | exit (EXIT_FAILURE); | |
62 | } | |
63 | ||
64 | errno = 23; | |
9fc3183f | 65 | pthread_barrier_wait (&start_threads_barrier); |
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66 | |
67 | err = pthread_join (the_thread, NULL); | |
68 | if (err != 0) | |
69 | { | |
70 | fprintf (stderr, "pthread_join: %s (%d)\n", strerror (err), err); | |
71 | exit (EXIT_FAILURE); | |
72 | } | |
73 | ||
74 | exit (EXIT_SUCCESS); | |
75 | } |