[Bug target/71161] [7 Regression] Lots of ASAN and libgo runtime FAILs after r236090

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71161

--- Comment #11 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Richard Biener from comment #10)
> Thanks for tracking it down!  I'm putting this workaround in my tree for the
> next testing.  I've briefly looked into the dl_iterate_phdr history but
> can't find
> a fix so it might be a miscompilation of the system compiler building the old
> glibc (gcc 4.3 here)?

I doubt this, my CentOS 5.11 has ancient gcc-4.1.2-55 as a system compiler, and
its glibc-2.5 has the same problem. Nevertheless, glibc people should look at
this problem from their perspective.

I will propose the patch later today, it robustifies the compiler noticeably.