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[PATCH] allow /proc/config.gz to be built as a module

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The driver for /proc/config.gz consumes rather a lot of memory and it is in
fact possible to build it as a module.

In some ways this is a bit risky, because the .config which is used for
compiling kernel/configs.c isn't necessarily the same as the .config which was
used to build vmlinux.

But OTOH the potential memory savings are decent, and it'd be fairly dumb to
build your configs.o with a different .config.

Signed-off-by: Andrew Morton <akpm@google.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ross Biro 2006-09-30 23:27:25 -07:00 committed by Linus Torvalds
parent 756184b7d7
commit f2443ab6c4
2 changed files with 2 additions and 2 deletions
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2
init/Kconfig
View file

@ -202,7 +202,7 @@ config AUDITSYSCALL
ensure that INOTIFY is configured.
config IKCONFIG
bool "Kernel .config support"
tristate "Kernel .config support"
---help---
This option enables the complete Linux kernel ".config" file
contents to be saved in the kernel. It provides documentation

2
scripts/Makefile
View file

@ -13,7 +13,7 @@ hostprogs-$(CONFIG_VT) += conmakehash
hostprogs-$(CONFIG_PROM_CONSOLE) += conmakehash
hostprogs-$(CONFIG_IKCONFIG) += bin2c
always := $(hostprogs-y)
always := $(hostprogs-y) $(hostprogs-m)
# The following hostprogs-y programs are only build on demand
hostprogs-y += unifdef