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8c53a12c JM |
1 | /* Test backtrace and backtrace_symbols: common code for examining |
2 | backtraces. | |
2b778ceb | 3 | Copyright (C) 2013-2021 Free Software Foundation, Inc. |
8c53a12c JM |
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 | |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
8c53a12c JM |
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. */ | |
341657bc | 36 | #define NO_INLINE __attribute__ ((noinline, noclone, weak)) |
8c53a12c JM |
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 | } |