1 | /* Obtain a backtrace and print it. |
2 | Copyright (C) 1991-2022 Free Software Foundation, Inc. |
3 | |
4 | This program is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU General Public License |
6 | as published by the Free Software Foundation; either version 2 |
7 | of the License, or (at your option) any later version. |
8 | |
9 | This program 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 |
12 | GNU General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program; if not, see <https://www.gnu.org/licenses/>. |
16 | */ |
17 | |
18 | #include <execinfo.h> |
19 | #include <stdio.h> |
20 | #include <stdlib.h> |
21 | |
22 | /* Obtain a backtrace and print it to @code{stdout}. */ |
23 | void |
24 | print_trace (void) |
25 | { |
26 | void *array[10]; |
27 | char **strings; |
28 | int size, i; |
29 | |
30 | size = backtrace (array: array, size: 10); |
31 | strings = backtrace_symbols (array: array, size: size); |
32 | if (strings != NULL) |
33 | { |
34 | |
35 | printf (format: "Obtained %d stack frames.\n" , size); |
36 | for (i = 0; i < size; i++) |
37 | printf (format: "%s\n" , strings[i]); |
38 | } |
39 | |
40 | free (ptr: strings); |
41 | } |
42 | |
43 | /* A dummy function to make the backtrace more interesting. */ |
44 | void |
45 | dummy_function (void) |
46 | { |
47 | print_trace (); |
48 | } |
49 | |
50 | int |
51 | main (void) |
52 | { |
53 | dummy_function (); |
54 | return 0; |
55 | } |
56 | |