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Commit 6b22b3d1 authored by Rob Herring's avatar Rob Herring
Browse files

kbuild: Allow using host dtc instead of kernel's copy 



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: default avatarRob Herring <robh@kernel.org>
Cc: Michal Marek <mmarek@suse.com>
Cc: linux-kbuild@vger.kernel.org
parent 82f68756

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)