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* [Bug libc/24202] m68k setjmp() saves incorrect 'a5' register in --enable-stack-protector=all
[not found] <bug-24202-131@http.sourceware.org/bugzilla/>
@ 2020-12-21 4:58 ` siddhesh at sourceware dot org
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From: siddhesh at sourceware dot org @ 2020-12-21 4:58 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=24202
Siddhesh Poyarekar <siddhesh at sourceware dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |2.33
Resolution|--- |FIXED
CC| |siddhesh at sourceware dot org
Status|UNCONFIRMED |RESOLVED
--- Comment #2 from Siddhesh Poyarekar <siddhesh at sourceware dot org> ---
Fixed in master:
commit 6eb7e1da0e805e2893a0b70a5813641529d8c7e2 (HEAD -> master)
Author: Sergei Trofimovich <slyfox@gentoo.org>
Date: Mon Dec 21 10:24:34 2020 +0530
m68k: fix clobbering a5 in setjmp() [BZ #24202]
setjmp() uses C code to store current registers into jmp_buf
environment. -fstack-protector-all places canary into setjmp()
prologue and clobbers 'a5' before it gets saved.
The change inhibits stack canary injection to avoid clobber.
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[not found] <bug-24202-131@http.sourceware.org/bugzilla/>
2020-12-21 4:58 ` [Bug libc/24202] m68k setjmp() saves incorrect 'a5' register in --enable-stack-protector=all siddhesh at sourceware dot org
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