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[Bug libc/16629] [aarch64] setcontext clobbers alternate signal stack
- From: "michael.hudson at linaro dot org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Sat, 22 Mar 2014 11:36:57 +0000
- Subject: [Bug libc/16629] [aarch64] setcontext clobbers alternate signal stack
- Auto-submitted: auto-generated
- References: <bug-16629-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16629
--- Comment #2 from Michael Hudson-Doyle <michael.hudson at linaro dot org> ---
Hi, I'm on leave and don't really have time to dig into it, but applying the
linked patch in isolation breaks the go runtime rather badly:
(t-mwhudson)mwhudson@am1:~/juju-core-1.17.2$ go
fatal error: runtime: mcall function returned
This error message is from
http://gcc.gnu.org/viewcvs/gcc/trunk/libgo/runtime/proc.c?revision=208390&view=markup#l308
and implies that the call to setcontext returned normally (which it should not
do, of course).
I may have screwed up applying the patch of course.
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