linux-kernel - Re: External module Makefile with generated C file

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Date:	Sat, 27 Jan 2007 16:42:31 -0200
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
CC:	Sam Ravnborg <sam@...nborg.org>, linux-kernel@...r.kernel.org
Subject: Re: External module Makefile with generated C file

Jan Engelhardt wrote:
>> ctracer_methods.o: ctracer_methods.c
>>     
>
> $(obj)/ctracer_methods.o: $(src)/ctracer_methods.c
>
> $(src)/ctracer_methods.c:
>   ...
>
>
>
> I don't know if $(obj) or $(src) is the right thing, but something along
> these lines is required for OOT.
>   

Thanks, that did the trick, resulting Makefile:

obj-m := ctracer.o

ctracer-y := ctracer_methods.o ctracer_jprobe.o

# Files generated that shall be removed upon make clean
clean-files := ctracer_methods.c

CLASS=sock
KDIR := /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)

default:
        $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
clean:
        rm -f *.mod.c *.ko *.o ctracer_methods.c

$(obj)/ctracer_methods.o: ctracer_methods.c

$(src)/ctracer_methods.c:
        ctracer /usr/lib/debug/lib/modules/$(shell uname -r)/vmlinux 
$(CLASS) > $@

- Arnaldo


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