From: Marcus Shawcroft <marcus.shawcroft@linaro.org>
To: libc-ports <libc-ports@sourceware.org>
Subject: [COMMITTED] AArch64 simplify getcontext.S initialization of pstate.
Date: Fri, 28 Jun 2013 10:39:00 -0000 [thread overview]
Message-ID: <CABXK9nejsok0LMWtam3A_uHY=8dcuMiUn+WTUuXfM_-U9b-xgw@mail.gmail.com> (raw)
[-- 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. */
reply other threads:[~2013-06-28 10:39 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CABXK9nejsok0LMWtam3A_uHY=8dcuMiUn+WTUuXfM_-U9b-xgw@mail.gmail.com' \
--to=marcus.shawcroft@linaro.org \
--cc=libc-ports@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).