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| author | Stephen Warren <swarren@nvidia.com> | 2012-01-09 19:38:15 +0100 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2012-01-15 00:04:35 +0100 |
| commit | 7c43185138cf523b0810ffd2c9e18e2ecb356730 (patch) | |
| tree | 24deed8741857d00f5575bf8febf0c6f66357af4 /scripts/Makefile.lib | |
| parent | dtc: Implement -d option to write out a dependency file (diff) | |
| download | linux-7c43185138cf523b0810ffd2c9e18e2ecb356730.tar.xz 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 'scripts/Makefile.lib')
| -rw-r--r-- | scripts/Makefile.lib | 2 |
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 # --------------------------------------------------------------------------- |