Mercurial > gnulib
view modules/getaddrinfo @ 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 | a09d55da04d3 |
children | 22e5bc9336ee |
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Description: getaddrinfo() function: Get address information. Files: lib/getaddrinfo.c lib/gai_strerror.c m4/getaddrinfo.m4 Depends-on: netdb sys_socket extensions gettext-h [test $HAVE_GETADDRINFO = 0 || test $HAVE_DECL_GAI_STRERROR = 0 || test $REPLACE_GAI_STRERROR = 1] inet_ntop [test $HAVE_GETADDRINFO = 0] snprintf [test $HAVE_GETADDRINFO = 0] stdbool [test $HAVE_GETADDRINFO = 0] strdup [test $HAVE_GETADDRINFO = 0] servent [test $HAVE_GETADDRINFO = 0] hostent [test $HAVE_GETADDRINFO = 0] sockets [test $HAVE_GETADDRINFO = 0] configure.ac: gl_GETADDRINFO if test $HAVE_GETADDRINFO = 0; then AC_LIBOBJ([getaddrinfo]) fi if test $HAVE_DECL_GAI_STRERROR = 0 || test $REPLACE_GAI_STRERROR = 1; then AC_LIBOBJ([gai_strerror]) fi gl_NETDB_MODULE_INDICATOR([getaddrinfo]) Makefile.am: Include: <netdb.h> Link: $(GETADDRINFO_LIB) License: LGPLv2+ Maintainer: Simon Josefsson