Re: [Patch] Kernel configuration in kernel, kernel 2.5.53

[Sam Ravnborg <sam@ravnborg.org>]

On Sun, Dec 29, 2002 at 06:37:09PM +0100, Paul Rolland wrote:
> Hello,
> 
> Here is the 2.5.53 version of the patch I just sent to the list for 2.4.20
> Main differences are in the Makefile and Kconfig.

Some comments to the Makefile + a little more.

	Sam

> +MODULE_AUTHOR("Paul Rolland");
> +MODULE_DESCRIPTION("Driver for accessing kernel configuration");
> +MODULE_LICENSE("GPL");
> +
> +EXPORT_NO_SYMBOLS;
EXPORT_NO_SYMBOLS in a noop in 2.5. Please remove

> +  printf("\n");
> +  printf("#define CONFIG_SIZE %d\n\n", size);
The CONFIG_ prefix indicates a value from kconfig, which CONFIG_SIZE is not.


> +++ linux-2.5.53/drivers/char/Makefile  2002-12-29 17:43:53.000000000 +0100
> +$(obj)/config.h: $(obj)/config.txt.gz
> +       cc -o $(obj)/dotHmaker $(obj)/dotHmaker.c
> +       $(obj)/./dotHmaker < $(obj)/config.txt.gz > $(obj)/config.h
> +
> +$(obj)/config.txt.gz::
> +       cp .config $(obj)/config.txt
> +       gzip -f $(obj)/config.txt
> +
Replace the above with something like this:

host-progs	:= dotHmaker
EXTRA_TARGETS	:= config.txt.gz

$(obj)/config.h: $(obj)/config.txt.gz $(obj)/dotHmaker
	$(obj)/dotHmaker < $< > $@

$(obj)/config.txt.gz: .config
	$(call if_changed,gzip)

That is more in line with general kbuild practice.
Please note that gzip will be called with -9 in the above case.
I do not expect it to have any influence.