qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: "Igor Kovalenko" <igor.v.kovalenko@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH] sparc64 reverse cas and casx arguments
Date: Mon, 22 Sep 2008 00:59:19 +0400	[thread overview]
Message-ID: <b2fa41d60809211359n71475d07q97bf9ff4518f7eff@mail.gmail.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 506 bytes --]

Hi!

The following patch should fix a problem with sparc64 cas and casx
emulation where value to be stored and value to be compared are passed
in reverse order to helper function.

This also fixes a problem with booting linux iso where kernel tries to
clear memory bitmap bit with casx but fails to find any cleared bit
later.

Please apply.

PS: if anyone can send me a patch for gdb to load and use System.map
file while doing remote debugging that would be great :)

-- 
Kind regards,
Igor V. Kovalenko

[-- Attachment #2: qemu-cas-reverse-args-20080921.patch --]
[-- Type: application/octet-stream, Size: 878 bytes --]

Index: target-sparc/op_helper.c
===================================================================
--- target-sparc/op_helper.c	(revision 5283)
+++ target-sparc/op_helper.c	(working copy)
@@ -2194,8 +2226,8 @@
     helper_st_asi(addr, val, asi, size);
 }
 
-target_ulong helper_cas_asi(target_ulong addr, target_ulong val1,
-                            target_ulong val2, uint32_t asi)
+target_ulong helper_cas_asi(target_ulong addr, target_ulong val2,
+                            target_ulong val1, uint32_t asi)
 {
     target_ulong ret;
 
@@ -2207,8 +2239,8 @@
     return ret;
 }
 
-target_ulong helper_casx_asi(target_ulong addr, target_ulong val1,
-                             target_ulong val2, uint32_t asi)
+target_ulong helper_casx_asi(target_ulong addr, target_ulong val2,
+                             target_ulong val1, uint32_t asi)
 {
     target_ulong ret;
 

             reply	other threads:[~2008-09-21 20:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-21 20:59 Igor Kovalenko [this message]
2008-09-22 16:20 ` [Qemu-devel] [PATCH] sparc64 reverse cas and casx arguments Blue Swirl
2008-09-22 20:13   ` Igor Kovalenko

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=b2fa41d60809211359n71475d07q97bf9ff4518f7eff@mail.gmail.com \
    --to=igor.v.kovalenko@gmail.com \
    --cc=qemu-devel@nongnu.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 NNTP newsgroup(s).