Mercurial > gnulib
view lib/glob.in.h @ 37246:5cfb3a67238d
regex: avoid glibc deadlock during configure
glibc has a known bug where certain corruptions of the heap can
cause malloc to default to printing a debug message that includes
a backtrace, but the act of getting the backtrace uses dlopen
which in turn calls into malloc, causing a recursive lock ending
in deadlock. Thus, when configure is probing for a known glibc
heap corruption bug, the overall configure would hang.
The solution suggested by glibc developers is to force malloc
to quit printing debug messages, which avoids recursive malloc.
* m4/regex.m4 (gl_REGEX): Avoid recursive malloc deadlock when
glibc bug 15078 in turn triggers bug 16159.
Reported by Michal Privoznik.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Tue, 03 Dec 2013 10:34:13 -0700 |
parents | 79c9962d8732 |
children | 344018b6e5d7 |
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/* glob.h -- Find a path matching a pattern. Copyright (C) 2005-2007, 2009-2013 Free Software Foundation, Inc. Written by Derek Price <derek@ximbiot.com> & Paul Eggert <eggert@CS.UCLA.EDU> This program 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. This program 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 this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef _GL_GLOB_H #define _GL_GLOB_H #if @HAVE_SYS_CDEFS_H@ # include <sys/cdefs.h> #endif #include <stddef.h> /* On some systems, such as AIX 5.1, <sys/stat.h> does a "#define stat stat64". Make sure this definition is seen before glob-libc.h defines types that rely on 'struct stat'. */ #include <sys/stat.h> #ifndef __BEGIN_DECLS # ifdef __cplusplus # define __BEGIN_DECLS extern "C" { # define __END_DECLS } # else # define __BEGIN_DECLS # define __END_DECLS # endif #endif #ifndef __THROW # define __THROW #endif #ifndef __THROWNL # define __THROWNL #endif /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ /* The definition of _GL_ARG_NONNULL is copied here. */ /* The definition of _GL_WARN_ON_USE is copied here. */ #ifndef __size_t # define __size_t size_t #endif #ifndef __USE_GNU # define __USE_GNU 1 #endif #define glob rpl_glob #define globfree rpl_globfree #define glob_pattern_p rpl_glob_pattern_p #define __GLOB_GNULIB 1 /* Now the standard GNU C Library header should work. */ #include "glob-libc.h" __BEGIN_DECLS typedef int (*_gl_glob_errfunc_fn) (const char *, int); __END_DECLS #if defined __cplusplus && defined GNULIB_NAMESPACE # undef glob # undef globfree # undef glob_pattern_p _GL_CXXALIAS_RPL (glob, int, (const char *_Restrict_ __pattern, int __flags, _gl_glob_errfunc_fn __errfunc, glob_t *_Restrict_ __pglob)); _GL_CXXALIAS_RPL (globfree, void, (glob_t *__pglob)); _GL_CXXALIAS_RPL (glob_pattern_p, int, (const char *__pattern, int __quote)); # if 0 /* The C function name is rpl_glob, not glob. */ _GL_CXXALIASWARN (glob); _GL_CXXALIASWARN (globfree); _GL_CXXALIASWARN (glob_pattern_p); # endif #endif #endif /* _GL_GLOB_H */