diff options
| author | Frank Ch. Eigler <fche@redhat.com> | 2019-08-06 11:23:48 -0400 |
|---|---|---|
| committer | Frank Ch. Eigler <fche@redhat.com> | 2019-08-06 15:09:53 -0400 |
| commit | 404f29021abaef86a341663444fb069eb1f0282a (patch) | |
| tree | 76a3409f363d27b2c0fcceaaea2dcf2a86f7e5e6 /gdb/ChangeLog | |
| parent | 046bebe1c0a367687bd693eb4594fcdcba0b8f7e (diff) | |
| download | binutils-gdb-404f29021abaef86a341663444fb069eb1f0282a.tar.gz | |
[PR build/24886] disable glibc mcheck support
This patch drops gdb's configury support for glibc's mcheck function.
It has been observed to cause false abort()s, because it is
thread-unsafe yet interposes every malloc/free operation. So if any
library transitively used by gdb also uses threads, then these
functions can easily corrupt their own checking data. These days, gcc
ASAN and valgrind provide high quality checking, and mcheck is
apparently itself being slowly deprecated.
So, let's stop linking to it. Attached patch drops the
autoconf/Makefile machinery for both gdb and gdbserver. No
testsuite-visible impact. IMHO not worth mentioning in NEWS.
See also: https://sourceware.org/bugzilla/show_bug.cgi?id=9939
gdb/ChangeLog
PR build/24886
* configure.ac: Drop enable-libmcheck support.
* configure, config.in: Rebuild.
* libmcheck.m4: Remove.
* acinclude.m4: Don't include it.
* Makefile.in: Don't distribute it.
* top.c (print_gdb_configuration): Don't mention it.
gdb/gdbserver/ChangeLog
PR build/24886
* configure.ac: Drop enable-libmcheck support.
* configure, config.in: Rebuild.
* acinclude.m4: Don't include it.
Diffstat (limited to 'gdb/ChangeLog')
| -rw-r--r-- | gdb/ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 57ca368352a..974cca4c524 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,13 @@ +2019-08-06 Frank Ch. Eigler <fche@redhat.com> + + PR build/24886 + * configure.ac: Drop enable-libmcheck support. + * configure, config.in: Rebuild. + * libmcheck.m4: Remove. + * acinclude.m4: Don't include it. + * Makefile.in: Don't distribute it. + * top.c (print_gdb_configuration): Don't mention it. + 2019-08-06 Tom Tromey <tom@tromey.com> * utils.c (set_output_style): Sometimes pass stream to |