1 | /* Test backtrace and backtrace_symbols: common code for examining |
2 | backtraces. |
3 | Copyright (C) 2013-2022 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #include <stdbool.h> |
21 | #include <stdio.h> |
22 | #include <string.h> |
23 | |
24 | /* Set to a non-zero value if the test fails. */ |
25 | volatile int ret; |
26 | |
27 | /* Accesses to X are used to prevent optimization. */ |
28 | volatile int x; |
29 | |
30 | /* Called if the test fails. */ |
31 | #define FAIL() \ |
32 | do { printf ("Failure on line %d\n", __LINE__); ret = 1; } while (0) |
33 | |
34 | /* Use this attribute to prevent inlining, so that all expected frames |
35 | are present. */ |
36 | #define NO_INLINE __attribute__ ((noinline, noclone, weak)) |
37 | |
38 | /* Look for a match in SYM from backtrace_symbols to NAME, a fragment |
39 | of a function name. Ignore the filename before '(', but presume |
40 | that the function names are chosen so they cannot accidentally |
41 | match the hex offset before the closing ')'. */ |
42 | |
43 | static inline bool |
44 | match (const char *sym, const char *name) |
45 | { |
46 | char *p = strchr (sym, '('); |
47 | return p != NULL && strstr (p, name) != NULL; |
48 | } |
49 | |