/* Test backtrace and backtrace_symbols: common code for examining

   backtraces.

   Copyright (C) 2013-2018 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

   <http://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__ ((noinline, noclone, weak))

/* 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;

}