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Re: [PATCH] Don't use IFUNC resolver for longjmp or system in libpthread (bug 21041)
- From: Romain Naour <romain dot naour at gmail dot com>
- To: Andreas Schwab <schwab at suse dot de>
- Cc: "libc-alpha at sourceware dot org" <libc-alpha at sourceware dot org>
- Date: Wed, 1 Nov 2017 14:10:45 +0100
- Subject: Re: [PATCH] Don't use IFUNC resolver for longjmp or system in libpthread (bug 21041)
- Authentication-results: sourceware.org; auth=none
- References: <mvmwp6em7uq.fsf@suse.de>
Hi All,
Le 08/08/2017 à 16:50, Andreas Schwab a écrit :
> Unlike the vfork forwarder and like the fork forwarder as in bug 19861,
> there won't be a problem when the compiler does not turn this into a tail
> call.
>
> Andreas.
>
> * nptl/pt-longjmp.c (longjmp, siglongjmp): Don't use IFUNC resolver.
> * nptl/pt-system.c (system): Likewise.
>
What's the status of this issue ?
This patch has been merged in master (upcoming 2.27) but the ticket is still
"NEW" [1].
The issue has been reported on the Buildroot mailing list by a user using glibc
2.25. I'm able to reproduce it using glibc 2.26-73.
It's safe to backport this patch to glibc 2.25 and 2.26 stable branches ?
Best regards,
Romain
[1] https://sourceware.org/bugzilla/show_bug.cgi?id=21041
[2] http://lists.busybox.net/pipermail/buildroot/2017-October/205719.html