linux-kernel - Re: [PATCH 2/4] module linker script: coalesce function and data sections

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Message-ID: <4C581DEE.8080205@suse.cz>
Date:	Tue, 03 Aug 2010 15:47:26 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	Denys Vlasenko <vda.linux@...glemail.com>
Cc:	linux-kbuild <linux-kbuild@...r.kernel.org>,
	linux-arch@...r.kernel.org,
	Parisc List <linux-parisc@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Tim Abbott <tabbott@...lice.com>,
	Tim Bird <tim.bird@...sony.com>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Matt Fleming <matt@...sole-pimps.org>,
	Arnd Bergmann <arnd@...db.de>,
	Anders Kaseorg <andersk@....edu>,
	Andi Kleen <andi@...stfloor.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH 2/4] module linker script: coalesce function and data
 sections

On 29.7.2010 01:47, Denys Vlasenko wrote:
>  SECTIONS {
> +
> +	/* Coalesce sections produced by gcc -ffunction-sections */
> +	.text   0 : AT(0) { *(.text .text.[A-Za-z0-9_$^]*) }
> +
> +	/* Coalesce sections produced by gcc -fdata-sections */
> +	.rodata 0 : AT(0) { *(.rodata .rodata.[A-Za-z0-9_$^]*) }
> +	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
> +	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }
> +
>  	/DISCARD/ : { *(.discard) }
>  }

I'm now getting

ld:/home/mmarek/linux-2.6/scripts/module-common.lds:23: ignoring invalid
character `^' in script
ld:/home/mmarek/linux-2.6/scripts/module-common.lds:26: ignoring invalid
character `^' in script
ld:/home/mmarek/linux-2.6/scripts/module-common.lds:27: ignoring invalid
character `^' in script
ld:/home/mmarek/linux-2.6/scripts/module-common.lds:28: ignoring invalid
character `^' in script

when linking modules and a similar warning when linking vmlinux (caused
by the next patch in series). I tried writing the carets as \^, but that
doesn't help at all...

$ ld --version
GNU ld (GNU Binutils; openSUSE Factory) 2.20.0.20100122-7

Michal
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