From: Cyrill Gorcunov <gorcunov@gmail.com>
To: mingo@elte.hu, hpa@zytor.com, heukelum@fastmail.fm
Cc: linux-kernel@vger.kernel.org, Cyrill Gorcunov <gorcunov@openvz.org>
Subject: [RFC 5/6] x86: compressed head_64 - use ENTRY,ENDPROC macros
Date: Sat, 14 Feb 2009 00:50:22 +0300 [thread overview]
Message-ID: <20090213215404.710987358@gmail.com> (raw)
In-Reply-To: 20090213215017.959278111@gmail.com
[-- Attachment #1: x86-compressed-head-64 --]
[-- Type: text/plain, Size: 1020 bytes --]
Impact: clenaup
Linker script will put startup_32 at predefined
address so using ENTRY will not bloat the code
size.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
---
arch/x86/boot/compressed/head_64.S | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
Index: linux-2.6.git/arch/x86/boot/compressed/head_64.S
===================================================================
--- linux-2.6.git.orig/arch/x86/boot/compressed/head_64.S
+++ linux-2.6.git/arch/x86/boot/compressed/head_64.S
@@ -35,9 +35,7 @@
.section ".text.head"
.code32
- .globl startup_32
-
-startup_32:
+ENTRY(startup_32)
cld
/* test KEEP_SEGMENTS flag to see if the bootloader is asking
* us to not reload segments */
@@ -176,6 +174,7 @@ startup_32:
/* Jump from 32bit compatibility mode into 64bit mode. */
lret
+ENDPROC(startup_32)
no_longmode:
/* This isn't an x86-64 CPU so hang */
@@ -295,7 +294,6 @@ relocated:
call decompress_kernel
popq %rsi
-
/*
* Jump to the decompressed kernel.
*/
next prev parent reply other threads:[~2009-02-13 21:55 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-13 21:50 [RFC 0/6] x86 tip asm ENTRY,ENDPROC cleanup Cyrill Gorcunov
2009-02-13 21:50 ` [RFC 1/6] x86: asm linkage - introduce GLOBAL macro Cyrill Gorcunov
2009-02-13 21:50 ` [RFC 2/6] x86: linkage - get rid of _X86 macros Cyrill Gorcunov
2009-02-13 21:50 ` [RFC 3/6] x86: copy.S - use GLOBAL,ENDPROC macros Cyrill Gorcunov
2009-02-13 21:50 ` [RFC 4/6] x86: pmjump " Cyrill Gorcunov
2009-02-13 21:50 ` Cyrill Gorcunov [this message]
2009-02-13 21:50 ` [RFC 6/6] x86: compressed head_32 - use ENTRY,ENDPROC macros Cyrill Gorcunov
2009-02-13 23:23 ` [RFC 0/6] x86 tip asm ENTRY,ENDPROC cleanup Alexander van Heukelum
2009-02-14 0:34 ` H. Peter Anvin
2009-02-14 8:21 ` Cyrill Gorcunov
2009-02-14 11:42 ` Alexander van Heukelum
2009-02-14 20:02 ` H. Peter Anvin
2009-02-19 16:13 ` Ingo Molnar
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