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Subject: [Bug sanitizer/98920] [10/11 Regression] uses regexec without
 support for REG_STARTEND with -fsanitize=address
Date: Fri, 05 Feb 2021 13:16:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98920

Florian Weimer <fw at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fw at gcc dot gnu.org

--- Comment #7 from Florian Weimer <fw at gcc dot gnu.org> ---
I think libsanitizer falls back to a version-less lookup if the version can=
not
be found. Therefore, if the glibc baseline is after 2.3.4, the version-less
lookup will find the unversioned symbol, which has the right behavior.

I don't see any architecture that has two regexec symbols, but does not use
GLIBC_2.3.4 for the most recent symbol, based on this command in the glibc
source tree:

git grep -c ' regexec F' | grep :2$ | cut -d: -f1 | xargs grep ' regexec F'

A comment in the interceptor might make sense, though.=