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/* Test backtrace and backtrace_symbols: common code for examining
backtraces.
Copyright (C) 2013-2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
/* Set to a non-zero value if the test fails. */
volatile int ret;
/* Accesses to X are used to prevent optimization. */
volatile int x;
/* Called if the test fails. */
#define FAIL() \
do { printf ("Failure on line %d\n", __LINE__); ret = 1; } while (0)
/* Use this attribute to prevent inlining, so that all expected frames
are present. */
#define NO_INLINE __attribute__ ((weak)) __attribute_optimization_barrier__
/* Look for a match in SYM from backtrace_symbols to NAME, a fragment
of a function name. Ignore the filename before '(', but presume
that the function names are chosen so they cannot accidentally
match the hex offset before the closing ')'. */
static inline bool
match (const char *sym, const char *name)
{
char *p = strchr (sym, '(');
return p != NULL && strstr (p, name) != NULL;
}
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