1 /* Copyright (C) 2004-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <execinfo.h>
19 #include <pthread.h>
20 #include <stdio.h>
21
22 #define BT_SIZE 64
23 void *bt_array[BT_SIZE];
24 int bt_cnt;
25
26 int
do_bt(void)27 do_bt (void)
28 {
29 bt_cnt = backtrace (bt_array, BT_SIZE);
30 return 56;
31 }
32
33 int
call_do_bt(void)34 call_do_bt (void)
35 {
36 return do_bt () + 1;
37 }
38
39 void *
tf(void * arg)40 tf (void *arg)
41 {
42 if (call_do_bt () != 57)
43 return (void *) 1L;
44 return NULL;
45 }
46
47 int
do_test(void)48 do_test (void)
49 {
50 pthread_t th;
51 if (pthread_create (&th, NULL, tf, NULL))
52 {
53 puts ("create failed");
54 return 1;
55 }
56
57 void *res;
58 if (pthread_join (th, &res))
59 {
60 puts ("join failed");
61 return 1;
62 }
63
64 if (res != NULL)
65 {
66 puts ("thread failed");
67 return 1;
68 }
69
70 char **text = backtrace_symbols (bt_array, bt_cnt);
71 if (text == NULL)
72 {
73 puts ("backtrace_symbols failed");
74 return 1;
75 }
76
77 for (int i = 0; i < bt_cnt; ++i)
78 puts (text[i]);
79
80 return 0;
81 }
82
83 #define TEST_FUNCTION do_test ()
84 #include "../test-skeleton.c"
85