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author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2014-06-20 15:50:53 +0200 |
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committer | Justus Winter <justus@gnupg.org> | 2016-04-27 17:35:32 +0200 |
commit | 62bd3f2351a7665e681f00ad6dd92b08b8c68b72 (patch) | |
tree | 70835fd628925cd22c33c82bfc4751452e9e5733 /libshouldbeinlibc/assert-backtrace.h | |
parent | 33536608704a637eb8618396244ed43b9aa6aaf6 (diff) |
libshouldbeinlibc: add assert(3) variant that prints backtraces
* libshouldbeinlibc/Makefile: Add new files
* libshouldbeinlibc/assert-backtrace.{c,h}: New files.
Diffstat (limited to 'libshouldbeinlibc/assert-backtrace.h')
-rw-r--r-- | libshouldbeinlibc/assert-backtrace.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libshouldbeinlibc/assert-backtrace.h b/libshouldbeinlibc/assert-backtrace.h new file mode 100644 index 00000000..c54b8106 --- /dev/null +++ b/libshouldbeinlibc/assert-backtrace.h @@ -0,0 +1,60 @@ +/* Augment failing assertions with backtraces. + + Copyright (C) 1994-2015 Free Software Foundation, Inc. + + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + The GNU Hurd 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with the GNU Hurd. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef __ASSERT_BACKTRACE__ +#define __ASSERT_BACKTRACE__ + +#ifdef NDEBUG + +#define assert_backtrace(expr) ((void) 0) +#define assert_backtrace_perror(errnum) ((void) 0) + +#else /* NDEBUG */ + +/* This prints an "Assertion failed" message, prints a stack trace, + and aborts. */ +void __assert_fail_backtrace (const char *assertion, + const char *file, + unsigned int line, + const char *function) + __attribute__ ((noreturn, unused)); + +/* Likewise, but prints the error text for ERRNUM. */ +void __assert_perror_fail_backtrace (int errnum, + const char *file, + unsigned int line, + const char *function) + __attribute__ ((noreturn, unused)); + +#define assert_backtrace(expr) \ + ((expr) \ + ? (void) 0 \ + : __assert_fail_backtrace (__STRING(expr), \ + __FILE__, __LINE__, \ + __PRETTY_FUNCTION__)) + +#define assert_perror_backtrace(expr) \ + ((expr == 0) \ + ? (void) 0 \ + : __assert_perror_fail_backtrace (expr, \ + __FILE__, __LINE__, \ + __PRETTY_FUNCTION__)) + +#endif /* NDEBUG */ +#endif /* __ASSERT_BACKTRACE__ */ |