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| author | Stephen Warren <swarren@nvidia.com> | 2012-01-09 11:38:15 -0700 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2012-01-15 00:04:35 +0100 |
| commit | 7c43185138cf523b0810ffd2c9e18e2ecb356730 (patch) | |
| tree | 24deed8741857d00f5575bf8febf0c6f66357af4 /arch/powerpc/boot/Makefile | |
| parent | 136ec2049fea65aed0446d04ab7cfff2ae3070f1 (diff) | |
| download | talos-obmc-linux-7c43185138cf523b0810ffd2c9e18e2ecb356730.tar.gz talos-obmc-linux-7c43185138cf523b0810ffd2c9e18e2ecb356730.zip | |
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 <swarren@nvidia.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
[mmarek: Dropped arch/c6x part to avoid merging commits from the middle
of the merge window]
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'arch/powerpc/boot/Makefile')
| -rw-r--r-- | arch/powerpc/boot/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index c26200b40a47..5e1f0d5b9eae 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -334,8 +334,8 @@ $(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) $(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb) # Rule to build device tree blobs -$(obj)/%.dtb: $(src)/dts/%.dts - $(call cmd,dtc) +$(obj)/%.dtb: $(src)/dts/%.dts FORCE + $(call if_changed_dep,dtc) # If there isn't a platform selected then just strip the vmlinux. ifeq (,$(image-y)) |
