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

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
No known key found for this signature in database
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