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author | Roland McGrath <roland@hack.frob.com> | 2014-07-31 13:07:19 -0700 |
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committer | Roland McGrath <roland@hack.frob.com> | 2014-07-31 13:07:19 -0700 |
commit | 9fe7e787adc4f41201c441014fbad318eaae6f80 (patch) | |
tree | 0bad49b124ab865c1bdfa62a7704de1ee3abcfec /sysdeps/generic | |
parent | 23fe486bebc9ce58405853eb70cd87352156c91d (diff) | |
download | glibc-9fe7e787adc4f41201c441014fbad318eaae6f80.tar glibc-9fe7e787adc4f41201c441014fbad318eaae6f80.tar.gz glibc-9fe7e787adc4f41201c441014fbad318eaae6f80.tar.bz2 glibc-9fe7e787adc4f41201c441014fbad318eaae6f80.zip |
Use __builtin_trap for ABORT_INSTRUCTION.
Diffstat (limited to 'sysdeps/generic')
-rw-r--r-- | sysdeps/generic/abort-instr.h | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/sysdeps/generic/abort-instr.h b/sysdeps/generic/abort-instr.h index 106a330b2b..4ac11d2ea5 100644 --- a/sysdeps/generic/abort-instr.h +++ b/sysdeps/generic/abort-instr.h @@ -1,2 +1,31 @@ +/* Magic instruction to crash quickly and reliably. Generic/stub version. + Copyright (C) 2014 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/>. */ + +#ifndef _ABORT_INSTR_H +#define _ABORT_INSTR_H 1 + +/* If the compiler provides the generic way to generate the right + instruction, we can use that without any machine-specific knowledge. */ +#if HAVE_BUILTIN_TRAP +# define ABORT_INSTRUCTION __builtin_trap () +#else /* We cannot give any generic instruction to crash the program. - abort() will have to make sure it never returns. */ + abort will have to make sure it never returns. */ +#endif + +#endif /* abort-instr.h */ |