From: "H. Peter Anvin" <hpa@zytor.com>
To: Borislav Petkov <bp@alien8.de>
Cc: X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Borislav Petkov <bp@suse.de>
Subject: Re: [PATCH 5/5] x86, head_32: Remove an old gcc2 fix
Date: Sat, 09 Feb 2013 12:52:01 -0800 [thread overview]
Message-ID: <af2ed3e1-3ac4-421c-b1a8-bfa243327ffb@email.android.com> (raw)
In-Reply-To: <1360439574-16122-6-git-send-email-bp@alien8.de>
However... DF should have been cleared long before this...
Borislav Petkov <bp@alien8.de> wrote:
>From: Borislav Petkov <bp@suse.de>
>
>gcc2 wants direction flag cleared but we don't support gcc2 anymore. So
>drop it. Original patch adding this was:
>
>commit 57d40092c375d2b6d34f814f5fb306967e22c4f5
>Author: linus1 <torvalds@linuxfoundation.org>
>Date: Mon Nov 9 12:00:00 1992 -0600
>
> [PATCH] Linux-0.98.4 (November 9, 1992)
>...
>
>Signed-off-by: Borislav Petkov <bp@suse.de>
>---
> arch/x86/kernel/head_32.S | 1 -
> 1 file changed, 1 deletion(-)
>
>diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
>index 75e96d7e4e5f..fc56613224c3 100644
>--- a/arch/x86/kernel/head_32.S
>+++ b/arch/x86/kernel/head_32.S
>@@ -463,7 +463,6 @@ is486:
> xorl %eax,%eax # Clear LDT
> lldt %ax
>
>- cld # gcc2 wants the direction flag cleared at all times
> pushl $0 # fake return address for unwinder
> jmp *(initial_code)
>
--
Sent from my mobile phone. Please excuse brevity and lack of formatting.
next prev parent reply other threads:[~2013-02-09 20:53 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-09 19:52 [PATCH 0/5] x86, head_32: Some cleanups, -v2 Borislav Petkov
2013-02-09 19:52 ` [PATCH 1/5] x86, head_32: Remove i386 pieces Borislav Petkov
2013-02-09 19:52 ` [PATCH 2/5] x86: Detect CPUID support early at boot Borislav Petkov
2013-02-09 19:52 ` [PATCH 3/5] x86, head_32: Remove second CPUID detection from default_entry Borislav Petkov
2013-02-09 19:52 ` [PATCH 4/5] x86, head_32: Give the 6 label a real name Borislav Petkov
2013-02-09 19:52 ` [PATCH 5/5] x86, head_32: Remove an old gcc2 fix Borislav Petkov
2013-02-09 20:51 ` H. Peter Anvin
2013-02-09 20:52 ` H. Peter Anvin [this message]
2013-02-09 21:23 ` Borislav Petkov
2013-02-09 22:08 ` [PATCH 5/5 -v2] x86, head_32: Clear DF much earlier Borislav Petkov
2013-02-09 22:23 ` [PATCH 5/5] x86, head_32: Remove an old gcc2 fix H. Peter Anvin
2013-02-09 23:13 ` Borislav Petkov
2013-02-09 23:16 ` [PATCH 2/5 -v2.1] x86: Detect CPUID support early at boot Borislav Petkov
2013-02-10 4:34 ` H. Peter Anvin
2013-02-10 8:36 ` Borislav Petkov
2013-02-10 15:10 ` H. Peter Anvin
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=af2ed3e1-3ac4-421c-b1a8-bfa243327ffb@email.android.com \
--to=hpa@zytor.com \
--cc=bp@alien8.de \
--cc=bp@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=x86@kernel.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
all inboxes | Powered by JetHome®