Subject: Re: [PATCH 0/3] build system: section garbage collection for
	vmlinux
From: Daniel Walker <dwalker@mvista.com>
To: Denys Vlasenko <vda.linux@googlemail.com>
Cc: sam@ravnborg.org, kai@germaschewski.name, linux-kernel@vger.kernel.org
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References: <200709051443.21522.vda.linux@googlemail.com>
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Date: Wed, 05 Sep 2007 09:29:08 -0700
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On Wed, 2007-09-05 at 14:43 +0100, Denys Vlasenko wrote:
> Build system: section garbage collection for vmlinux
> 
> 
> Newer gcc and binutils can do dead code and data removal
> at link time. It is achieved using combination of
> -ffunction-sections -fdata-sections options for gcc and
> --gc-sections for ld.
> 
> Theory of operation:
> 
> Option -ffunction-sections instructs gcc to place each function
> (including static ones) in it's own section named .text.function_name
> instead of placing all functions in one big .text section.
> 
> At link time, ld normally coalesce all such sections into one
> output section .text again. It is achieved by having *(.text.*) spec
> along with *(.text) spec in built-in linker scripts.

You version doesn't work with CONFIG_MODULES right?

Also, why do you need this patch,

[PATCH 1/3] build system: section garbage collection for vmlinux

Daniel

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