* Do not clobber r12 for ia64 syscalls
@ 2018-12-13 20:00 Joseph Myers
2018-12-17 16:56 ` Ping " Joseph Myers
2018-12-17 17:01 ` Andreas Schwab
0 siblings, 2 replies; 3+ messages in thread
From: Joseph Myers @ 2018-12-13 20:00 UTC (permalink / raw)
To: libc-alpha
GCC mainline now gives errors for an asm that clobbers the stack
pointer. According to
<https://gcc.gnu.org/ml/gcc-patches/2018-12/msg00932.html> GCC
previously ignored such a clobber; thus, this patch removes it from
the clobbers for ia64 syscalls.
Tested with build-many-glibcs.py for ia64-linux-gnu.
2018-12-13 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/ia64/sysdep.h (ASM_CLOBBERS_6_COMMON):
Do not clobber r12.
diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.h b/sysdeps/unix/sysv/linux/ia64/sysdep.h
index f8f8d900c6..0505b966d2 100644
--- a/sysdeps/unix/sysv/linux/ia64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/ia64/sysdep.h
@@ -346,7 +346,7 @@
#define ASM_CLOBBERS_5 ASM_CLOBBERS_6, "out5"
#define ASM_CLOBBERS_6_COMMON , "out6", "out7", \
/* Non-stacked integer registers, minus r8, r10, r15. */ \
- "r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \
+ "r2", "r3", "r9", "r11", "r13", "r14", "r16", "r17", "r18", \
"r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \
"r28", "r29", "r30", "r31", \
/* Predicate registers. */ \
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 3+ messages in thread
* Ping Re: Do not clobber r12 for ia64 syscalls
2018-12-13 20:00 Do not clobber r12 for ia64 syscalls Joseph Myers
@ 2018-12-17 16:56 ` Joseph Myers
2018-12-17 17:01 ` Andreas Schwab
1 sibling, 0 replies; 3+ messages in thread
From: Joseph Myers @ 2018-12-17 16:56 UTC (permalink / raw)
To: libc-alpha
Ping. This patch
<https://sourceware.org/ml/libc-alpha/2018-12/msg00470.html> is pending
review.
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Do not clobber r12 for ia64 syscalls
2018-12-13 20:00 Do not clobber r12 for ia64 syscalls Joseph Myers
2018-12-17 16:56 ` Ping " Joseph Myers
@ 2018-12-17 17:01 ` Andreas Schwab
1 sibling, 0 replies; 3+ messages in thread
From: Andreas Schwab @ 2018-12-17 17:01 UTC (permalink / raw)
To: Joseph Myers; +Cc: libc-alpha
On Dez 13 2018, Joseph Myers <joseph@codesourcery.com> wrote:
> * sysdeps/unix/sysv/linux/ia64/sysdep.h (ASM_CLOBBERS_6_COMMON):
> Do not clobber r12.
Ok.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-12-13 20:00 Do not clobber r12 for ia64 syscalls Joseph Myers
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2018-12-17 17:01 ` Andreas Schwab
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