[Bug libc/22016] glibc-2.26 (and master) crashes on powerpc with --enable-stack-protector=all

["adhemerval.zanella at linaro dot org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=22016

Adhemerval Zanella <adhemerval.zanella at linaro dot org> changed:

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--- Comment #3 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> ---
(In reply to Alan Modra from comment #2)
> gcc-5, gcc-6, gcc-7 and master are now fixed.

So it was a fon(In reply to Florian Weimer from comment #1)
> I'm not sure how we could write a good configure test for this.  Stack
> protector is still not enabled by default.
> 
> There is no way to read lr directly because it may have already been
> clobbered at the point the inline assembly runs.

Given it has been fixed on actively branches, one option is we might disable it
for powerpc if built with GCC 4.9.

Do we need to keep track of this issue?

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