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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.
  */


  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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