kbuild: Allow using host dtc instead of kernel's copy (6b22b3d1) · Commits · 戴 / test

Development of dtc happens in its own upstream repository, but testing dtc changes against the kernel tree is useful. Change dtc to a variable that users can override. Signed-off-by:

Rob Herring <robh@kernel.org> Cc: Michal Marek <mmarek@suse.com> Cc: linux-kbuild@vger.kernel.org

scripts/Makefile.lib

+2 −1

Original line number	Diff line number	Diff line
		@@ -269,6 +269,7 @@ cmd_gzip = (cat $(filter-out FORCE,$^) \| gzip -n -f -9 > $@) \|\| \

		# DTC
		# ---------------------------------------------------------------------------
		DTC ?= $(objtree)/scripts/dtc/dtc

		# Generate an assembly file to wrap the output of the device tree compiler
		quiet_cmd_dt_S_dtb= DTB $@
		@@ -291,7 +292,7 @@ $(obj)/%.dtb.S: $(obj)/%.dtb
		quiet_cmd_dtc = DTC $@
		cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
		$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
		$(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 \
		$(DTC) -O dtb -o $@ -b 0 \
		-i $(dir $<) $(DTC_FLAGS) \
		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
		cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)

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