public inbox for libc-ports@sourceware.org
 help / color / mirror / Atom feed
* [COMMITTED] AArch64 simplify getcontext.S initialization of pstate.
@ 2013-06-28 10:39 Marcus Shawcroft
  0 siblings, 0 replies; only message in thread
From: Marcus Shawcroft @ 2013-06-28 10:39 UTC (permalink / raw)
  To: libc-ports

[-- Attachment #1: Type: text/plain, Size: 332 bytes --]

Hi,

This patch simplifies the initialization of the pstate field as
suggested by Richard Henderson here:

http://sourceware.org/ml/libc-ports/2013-06/msg00001.html

/Marcus

2013-06-28  Marcus Shawcroft  <marcus.shawcroft@linaro.org>

* sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Simplify
oPSTATE initialization.

[-- Attachment #2: fix-pstate-init.diff --]
[-- Type: application/octet-stream, Size: 496 bytes --]

diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/getcontext.S b/ports/sysdeps/unix/sysv/linux/aarch64/getcontext.S
index c370957..2ba4804 100644
--- a/ports/sysdeps/unix/sysv/linux/aarch64/getcontext.S
+++ b/ports/sysdeps/unix/sysv/linux/aarch64/getcontext.S
@@ -54,8 +54,7 @@ ENTRY(__getcontext)
 	str     x2, [x0, oSP]
 
 	/* Initialize the pstate.  */
-	mov	x3, #0
-	str	x3, [x0, oPSTATE]
+	str	xzr, [x0, oPSTATE]
 
 	/* Figure out where to place the first context extension
 	   block.  */

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2013-06-28 10:39 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-06-28 10:39 [COMMITTED] AArch64 simplify getcontext.S initialization of pstate Marcus Shawcroft

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).