path: root/scripts
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authorStephen Warren <swarren@nvidia.com>2012-01-09 11:38:15 -0700
committerMichal Marek <mmarek@suse.cz>2012-01-15 00:04:35 +0100
commit7c43185138cf523b0810ffd2c9e18e2ecb356730 (patch)
tree24deed8741857d00f5575bf8febf0c6f66357af4 /scripts
parent136ec2049fea65aed0446d04ab7cfff2ae3070f1 (diff)
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 'scripts')
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 2ce2e2194f26..00c368c6e996 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -264,7 +264,7 @@ $(obj)/%.dtb.S: $(obj)/%.dtb
$(call cmd,dt_S_dtb)
quiet_cmd_dtc = DTC $@
-cmd_dtc = $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) $<
+cmd_dtc = $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) -d $(depfile) $<
# Bzip2
# ---------------------------------------------------------------------------