Messages in this thread | | | Date | Wed, 3 Apr 2013 12:44:00 +0530 | From | Vineet Gupta <> | Subject | Re: [PATCH] Kbuild: Avoid DTB rebuilds if source files are untouched |
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forgot to CC linux-arch
On 04/03/2013 12:42 PM, Vineet Gupta wrote: > Currently, for every ARC kernel build I see the following: > > --------------->8----------------- > DTB arch/arc/boot/dts/angel4.dtb.S > AS arch/arc/boot/dts/angel4.dtb.o > LD arch/arc/boot/dts/built-in.o > rm arch/arc/boot/dts/angel4.dtb.S <-- forces rebuild next iter > CHK kernel/config_data.h > --------------->8----------------- > > Signed-off-by: Vineet Gupta <vgupta@synopsys.com> > Cc: Michal Marek <mmarek@suse.cz> > Cc: Stephen Warren <swarren@nvidia.com> > Cc: Grant Likely <grant.likely@secretlab.ca> > Cc: linux-kbuild@vger.kernel.org > Cc: linux-kernel@vger.kernel.org > --- > scripts/Makefile.lib | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib > index 07125e6..17f96f4 100644 > --- a/scripts/Makefile.lib > +++ b/scripts/Makefile.lib > @@ -265,6 +265,8 @@ cmd_dt_S_dtb= \ > echo '.balign STRUCT_ALIGNMENT'; \ > ) > $@ > > +.PRECIOUS: $(obj)/%.dtb.S > + > $(obj)/%.dtb.S: $(obj)/%.dtb > $(call cmd,dt_S_dtb) >
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