linux-kernel - Re: [PATCH 3/3] build system: section garbage collection for vmlinux

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Date:	Wed, 5 Sep 2007 19:40:15 +0100
From:	Denys Vlasenko <vda.linux@...glemail.com>
To:	sam@...nborg.org
Cc:	kai@...maschewski.name, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] build system: section garbage collection for vmlinux

On Wednesday 05 September 2007 14:55, Denys Vlasenko wrote:
> Part 3:
> 
> Makefile:
> init/Kconfig:
>   add config DISCARD_UNUSED_SECTIONS with appropriate
>   big scary warning. It enables gcc and ld options
>   for section garbage collection.

At it typically happens, last-minute "obviously correct" change was a mistake.

This doesn't work as intended:

LDFLAGS_vmlinux += $(call ld-option, --gc-sections)

With the above line, --gc-sections doesn't get added,
and vmlinux is not garbage collected.

It must be

LDFLAGS_vmlinux += --gc-sections

Sorry.
--
vda
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