linux-kernel - Re: [PATCH 10/15] powerpc: convert to use __HEAD and HEAD

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Message-ID: <20090426112313.GI28642@uranus.ravnborg.org>
Date:	Sun, 26 Apr 2009 13:23:13 +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>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH 10/15] powerpc: convert to use __HEAD and HEAD_TEXT macros.

On Sat, Apr 25, 2009 at 10:11:05PM -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: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Acked-by: Sam Ravnborg <sam@...nborg.org>
> ---
>  arch/powerpc/kernel/head_32.S        |    3 ++-
>  arch/powerpc/kernel/head_40x.S       |    3 ++-
>  arch/powerpc/kernel/head_44x.S       |    3 ++-
>  arch/powerpc/kernel/head_8xx.S       |    3 ++-
>  arch/powerpc/kernel/head_fsl_booke.S |    3 ++-
>  arch/powerpc/kernel/vmlinux.lds.S    |    2 +-
>  6 files changed, 11 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
> index 54e68c1..c01467f 100644
> --- a/arch/powerpc/kernel/head_32.S
> +++ b/arch/powerpc/kernel/head_32.S
> @@ -21,6 +21,7 @@
>   *
>   */
>  
> +#include <linux/init.h>
>  #include <asm/reg.h>
>  #include <asm/page.h>
>  #include <asm/mmu.h>
> @@ -50,7 +51,7 @@
>  	mtspr	SPRN_DBAT##n##L,RB;	\
>  1:
>  
> -	.section	.text.head, "ax"
> +	__HEAD
>  	.stabs	"arch/powerpc/kernel/",N_SO,0,0,0f
>  	.stabs	"head_32.S",N_SO,0,0,0f
>  0:
> diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S
> index 56d8e5d..0c96911 100644
> --- a/arch/powerpc/kernel/head_40x.S
> +++ b/arch/powerpc/kernel/head_40x.S
> @@ -31,6 +31,7 @@
>   *
>   */
>  
> +#include <linux/init.h>
>  #include <asm/processor.h>
>  #include <asm/page.h>
>  #include <asm/mmu.h>
> @@ -52,7 +53,7 @@
>   *
>   * This is all going to change RSN when we add bi_recs.......  -- Dan
>   */
> -	.section	.text.head, "ax"
> +	__HEAD
>  _ENTRY(_stext);
>  _ENTRY(_start);
>  
> diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
> index b56fecc..18d8a16 100644
> --- a/arch/powerpc/kernel/head_44x.S
> +++ b/arch/powerpc/kernel/head_44x.S
> @@ -28,6 +28,7 @@
>   * option) any later version.
>   */
>  
> +#include <linux/init.h>
>  #include <asm/processor.h>
>  #include <asm/page.h>
>  #include <asm/mmu.h>
> @@ -50,7 +51,7 @@
>   *   r7 - End of kernel command line string
>   *
>   */
> -	.section	.text.head, "ax"
> +	__HEAD
>  _ENTRY(_stext);
>  _ENTRY(_start);
>  	/*
> diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
> index 3c9452d..52ff8c5 100644
> --- a/arch/powerpc/kernel/head_8xx.S
> +++ b/arch/powerpc/kernel/head_8xx.S
> @@ -19,6 +19,7 @@
>   *
>   */
>  
> +#include <linux/init.h>
>  #include <asm/processor.h>
>  #include <asm/page.h>
>  #include <asm/mmu.h>
> @@ -38,7 +39,7 @@
>  #else
>  #define DO_8xx_CPU6(val, reg)
>  #endif
> -	.section	.text.head, "ax"
> +	__HEAD
>  _ENTRY(_stext);
>  _ENTRY(_start);
>  
> diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
> index 4c22620..5bdcc06 100644
> --- a/arch/powerpc/kernel/head_fsl_booke.S
> +++ b/arch/powerpc/kernel/head_fsl_booke.S
> @@ -30,6 +30,7 @@
>   * option) any later version.
>   */
>  
> +#include <linux/init.h>
>  #include <linux/threads.h>
>  #include <asm/processor.h>
>  #include <asm/page.h>
> @@ -53,7 +54,7 @@
>   *   r7 - End of kernel command line string
>   *
>   */
> -	.section	.text.head, "ax"
> +	__HEAD
>  _ENTRY(_stext);
>  _ENTRY(_start);
>  	/*
> diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
> index b9ef164..d7425ff 100644
> --- a/arch/powerpc/kernel/vmlinux.lds.S
> +++ b/arch/powerpc/kernel/vmlinux.lds.S
> @@ -52,7 +52,7 @@ SECTIONS
>  	/* Text and gots */
>  	.text : AT(ADDR(.text) - LOAD_OFFSET) {
>  		ALIGN_FUNCTION();
> -		*(.text.head)
> +		HEAD_TEXT
>  		_text = .;
>  		*(.text .fixup .text.init.refok .exit.text.refok __ftr_alt_*)
>  		SCHED_TEXT
> -- 
> 1.6.2.1
> 
--
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