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kernel-build.mk: add support for compiling only DTS

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Add support for compiling DTS for the selected target. This can be
useful for testing if the DTS correctly compile and doesn't produce any
error.

This adds a new make target. To compile only DTS use:

make target/linux/dtb

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2024-02-08 00:49:27 +01:00
parent f89904ad78
commit c47532b1ea
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GPG Key ID: AC001D09ADBFEAD7
3 changed files with 13 additions and 4 deletions
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10
include/image.mk
View File

@ -582,7 +582,7 @@ define Device/Build/dtb
$(KDIR)/image-$(1).dtb: FORCE
$(call Image/BuildDTB,$(strip $(2))/$(strip $(3)).dts,$$@)
image_prepare: $(KDIR)/image-$(1).dtb
compile-dtb: $(KDIR)/image-$(1).dtb
endif
endef
@ -593,7 +593,7 @@ define Device/Build/dtbo
$(KDIR)/image-$(1).dtbo: FORCE
$(call Image/BuildDTBO,$(strip $(2))/$(strip $(3)).dtso,$$@)
image_prepare: $(KDIR)/image-$(1).dtbo
compile-dtb: $(KDIR)/image-$(1).dtbo
endif
endef
@ -841,18 +841,20 @@ define BuildImage
download:
prepare:
compile:
compile-dtb:
clean:
image_prepare:
ifeq ($(IB),)
.PHONY: download prepare compile clean image_prepare kernel_prepare install install-images
.PHONY: download prepare compile compile-dtb clean image_prepare kernel_prepare install install-images
compile:
$(call Build/Compile)
clean:
$(call Build/Clean)
image_prepare: compile
compile-dtb:
image_prepare: compile compile-dtb
mkdir -p $(BIN_DIR) $(KDIR)/tmp
rm -rf $(BUILD_DIR)/json_info_files
$(call Image/Prepare)

4
include/kernel-build.mk
View File

@ -156,6 +156,10 @@ define BuildKernel
compile: $(LINUX_DIR)/.modules
$(MAKE) -C image compile TARGET_BUILD=
dtb: $(STAMP_CONFIGURED)
$(_SINGLE)$(KERNEL_MAKE) scripts_dtc
$(MAKE) -C image compile-dtb TARGET_BUILD=
oldconfig menuconfig nconfig xconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
rm -f $(LINUX_DIR)/.config.prev
rm -f $(STAMP_CONFIGURED)

3
include/subdir.mk
View File

@ -5,6 +5,9 @@
ifeq ($(MAKECMDGOALS),prereq)
SUBTARGETS:=prereq
PREREQ_ONLY:=1
# For target/linux related target add dtb to selectively compile dtbs
else ifneq ($(filter target/linux/%,$(MAKECMDGOALS)),)
SUBTARGETS:=$(DEFAULT_SUBDIR_TARGETS) dtb
else
SUBTARGETS:=$(DEFAULT_SUBDIR_TARGETS)
endif