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

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Message-Id: <200711241518.31371.vda.linux@googlemail.com>
Date:	Sat, 24 Nov 2007 15:18:31 -0800
From:	Denys Vlasenko <vda.linux@...glemail.com>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] build system: section garbage collection - main part

On Saturday 24 November 2007 15:14, Denys Vlasenko wrote:
> 3.gc
>     The meat of the patchset is here.
>     Introduce config option DISCARD_UNUSED_SECTIONS.
>     If it is selected:
>     Pass -ffunction-sections -fdata-sections to gcc and
>     --gc-sections --print-gc-sections to ld.
>     Use arch/$(SRCARCH)/kernel/modules.lds.S linker script for linking *.ko
>     files.
>     Generate linker map files for vmlinux and modules.
>     Add *(.text.*), *(.data.*) wildcards to linker scripts to accomodate
>     new kinds of sections generated by gcc.
>     Add KEEP(<sections>) directives to sections which must not be
>     discarded. Fix arch/frv/Makefile to use DISCARD_UNUSED_SECTIONS instead
>     of what seems to be a vestigial custom solution.

Signed-off-by: Denys Vlasenko <vda.linux@...glemail.com>
-- 
vda

View attachment "linux-2.6-linus_git.3.gc.patch" of type "text/x-diff" (47498 bytes)