From 8c53a12c8625f618d6ce8202861dc6f4f70940d3 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Thu, 24 Jan 2013 00:23:13 +0000 Subject: Avoid backtrace tests matching filenames when searching for function names. --- debug/tst-backtrace.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 debug/tst-backtrace.h (limited to 'debug/tst-backtrace.h') diff --git a/debug/tst-backtrace.h b/debug/tst-backtrace.h new file mode 100644 index 0000000000..0a89488f04 --- /dev/null +++ b/debug/tst-backtrace.h @@ -0,0 +1,48 @@ +/* Test backtrace and backtrace_symbols: common code for examining + backtraces. + Copyright (C) 2013 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 + . */ + +#include +#include +#include + +/* 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)) + +/* 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; +} -- cgit v1.2.1