From 7c43185138cf523b0810ffd2c9e18e2ecb356730 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 9 Jan 2012 11:38:15 -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 [mmarek: Dropped arch/c6x part to avoid merging commits from the middle of the merge window] Signed-off-by: Michal Marek --- arch/microblaze/boot/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/microblaze') diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile index 4c4e58ef0cb6..0c796cf81586 100644 --- a/arch/microblaze/boot/Makefile +++ b/arch/microblaze/boot/Makefile @@ -53,6 +53,6 @@ $(obj)/simpleImage.%: vmlinux FORCE DTC_FLAGS := -p 1024 $(obj)/%.dtb: $(src)/dts/%.dts FORCE - $(call cmd,dtc) + $(call if_changed_dep,dtc) clean-files += *.dtb simpleImage.*.unstrip linux.bin.ub -- cgit v1.2.3