linux-kernel - Re: [PATCH 05/15] arm: convert to use __HEAD and HEAD

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Date:	Sun, 26 Apr 2009 13:19:24 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Tim Abbott <tabbott@....EDU>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Anders Kaseorg <andersk@....edu>,
	Waseem Daher <wdaher@....edu>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Andi Kleen <andi@...stfloor.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Jeff Arnold <jbarnold@....edu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jon Masters <jonathan@...masters.org>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Theodore Ts'o <tytso@....edu>,
	Nikanth Karthikesan <knikanth@...e.de>,
	Arjan van de Ven <arjan@...radead.org>,
	Paul Mundt <lethal@...ux-sh.org>,
	Américo Wang <xiyou.wangcong@...il.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Kyle McMartin <kyle@...artin.ca>,
	David Howells <dhowells@...hat.com>,
	Russell King <rmk+kernel@....linux.org.uk>
Subject: Re: [PATCH 05/15] arm: convert to use __HEAD and HEAD_TEXT macros.

On Sat, Apr 25, 2009 at 10:11:00PM -0400, Tim Abbott wrote:
> This has the consequence of changing the section name use for head
> code from ".text.head" to ".head.text".  Since this commit changes all
> users in the architecture, this change should be harmless.
> 
> Signed-off-by: Tim Abbott <tabbott@....edu>
> Cc: Russell King <rmk+kernel@....linux.org.uk>
> ---
>  arch/arm/kernel/head-nommu.S  |    2 +-
>  arch/arm/kernel/head.S        |    2 +-
>  arch/arm/kernel/vmlinux.lds.S |    4 ++--
>  3 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
> index cc87e17..4f10d1c 100644
> --- a/arch/arm/kernel/head-nommu.S
> +++ b/arch/arm/kernel/head-nommu.S
> @@ -32,7 +32,7 @@
>   * numbers for r1.
>   *
>   */
> -	.section ".text.head", "ax"
> +	__HEAD
>  ENTRY(stext)
>  	msr	cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode
>  						@ and irqs disabled
> diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
> index 21e17dc..f1877a5 100644
> --- a/arch/arm/kernel/head.S
> +++ b/arch/arm/kernel/head.S
> @@ -74,7 +74,7 @@
>   * crap here - that's what the boot loader (or in extreme, well justified
>   * circumstances, zImage) is for.
>   */
> -	.section ".text.head", "ax"
> +	__HEAD
>  ENTRY(stext)
>  	msr	cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode
>  						@ and irqs disabled
> diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
> index c90f272..655fb75 100644
> --- a/arch/arm/kernel/vmlinux.lds.S
> +++ b/arch/arm/kernel/vmlinux.lds.S
> @@ -23,10 +23,10 @@ SECTIONS
>  #else
>  	. = PAGE_OFFSET + TEXT_OFFSET;
>  #endif
> -	.text.head : {
> +	HEAD_TEXT_SECTION : {

Spell it out direct rather than hiding the .head.text
behind a macro name here.

	Sam
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