From 62e37ca78b1a4ca2eb77875bfd7ac63a7e068c67 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 9 Jan 2012 11:00:32 -0700 Subject: Kbuild: Use dtc's -d (dependency) option This hooks dtc into Kbuild's dependency system. Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous lack of this feature recently caused me to have very confusing "git bisect" results. For ARM, it's obvious what to add to $(targets). I'm not familiar enough with other architectures to know what to add there. Powerpc appears to already add various .dtb files into $(targets), but the other archs may need something added to $(targets) to work. Signed-off-by: Stephen Warren Acked-by: Shawn Guo Acked-by: Mark Salter --- arch/c6x/boot/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/c6x/boot/Makefile b/arch/c6x/boot/Makefile index ecca820e604..6891257d514 100644 --- a/arch/c6x/boot/Makefile +++ b/arch/c6x/boot/Makefile @@ -13,7 +13,7 @@ obj-y += linked_dtb.o endif $(obj)/%.dtb: $(src)/dts/%.dts FORCE - $(call cmd,dtc) + $(call if_changed_dep,dtc) quiet_cmd_cp = CP $< $@$2 cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false) -- cgit v1.2.3