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SubjectRe: [PATCH] kbuild: let object files depend on recordmcount instead of its sources
On Fri, Oct 07, 2011 at 12:31:33PM -0400, Steven Rostedt wrote:
> On Fri, 2011-10-07 at 15:19 +0200, Uwe Kleine-König wrote:
> > This has the upside that distributions only have to ship the recordmcount
> > binary to allow building modules instead of recordmcount and it's sources.
> >
> > Make still notices that the object files need to be rebuilt when
> > recordmcount's sources change.
>
> This doesn't work. Try it on a clean build:
>
> HOSTCC scripts/basic/fixdep
> GEN /home/rostedt/work/git/tmp/Makefile
> HOSTCC scripts/kconfig/conf.o
> SHIPPED scripts/kconfig/zconf.tab.c
> SHIPPED scripts/kconfig/lex.zconf.c
> SHIPPED scripts/kconfig/zconf.hash.c
> HOSTCC scripts/kconfig/zconf.tab.o
> HOSTLD scripts/kconfig/conf
> scripts/kconfig/conf --silentoldconfig Kconfig
> Using /home/rostedt/work/git/linux-rt.git as source for kernel
> GEN /home/rostedt/work/git/tmp/Makefile
> CHK include/linux/version.h
> UPD include/linux/version.h
> CHK include/generated/utsrelease.h
> UPD include/generated/utsrelease.h
> CC kernel/bounds.s
> GEN include/generated/bounds.h
> CC arch/x86/kernel/asm-offsets.s
> GEN include/generated/asm-offsets.h
> CALL /home/rostedt/work/git/linux-rt.git/scripts/checksyscalls.sh
> make[3]: *** No rule to make target `scripts/mod/empty.o', needed by `scripts/mod/elfconfig.h'. Stop.
> make[2]: *** [scripts/mod] Error 2
> make[1]: *** [scripts] Error 2
> make: *** [sub-make] Error 2
Works for me with 3ee72ca + my patch doing:

make -C /path/to/my/linux/src/dir defconfig O=$(pwd)
make -j 6

If you tell me your exact setup I'll try to reproduce and fix.

Best regards
Uwe

--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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