[openwrt/openwrt] kernel-build.mk: add support for compiling only DTS
LEDE Commits
lede-commits at lists.infradead.org
Sat Feb 10 04:30:10 PST 2024
ansuel pushed a commit to openwrt/openwrt.git, branch openwrt-23.05:
https://git.openwrt.org/183c0d530de3480917dafcffc1e5223ecff27935
commit 183c0d530de3480917dafcffc1e5223ecff27935
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Thu Feb 8 00:49:27 2024 +0100
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 at gmail.com>
(cherry picked from commit c47532b1ea7f8459f05a223a71317a1461c6e750)
---
include/image.mk | 10 ++++++----
include/kernel-build.mk | 4 ++++
include/subdir.mk | 3 +++
3 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/include/image.mk b/include/image.mk
index dc53fe8b25..97cde011ce 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -575,7 +575,7 @@ define Device/Build/dtb
$(KDIR)/image-$(1).dtb: FORCE
$(call Image/BuildDTB,$(strip $(2))/$(strip $(3)).dts,$$@)
- image_prepare: $(KDIR)/image-$(1).dtb
+ compile-dtb: $(KDIR)/image-$(1).dtb
endif
endef
@@ -586,7 +586,7 @@ define Device/Build/dtbo
$(KDIR)/image-$(1).dtbo: FORCE
$(call Image/BuildDTBO,$(strip $(2))/$(strip $(3)).dtso,$$@)
- image_prepare: $(KDIR)/image-$(1).dtbo
+ compile-dtb: $(KDIR)/image-$(1).dtbo
endif
endef
@@ -823,18 +823,20 @@ 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)
diff --git a/include/kernel-build.mk b/include/kernel-build.mk
index 5b332258f8..435a2fecea 100644
--- a/include/kernel-build.mk
+++ b/include/kernel-build.mk
@@ -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 $(STAMP_CONFIGURED)
diff --git a/include/subdir.mk b/include/subdir.mk
index 95009f814e..b4edbf8b96 100644
--- a/include/subdir.mk
+++ b/include/subdir.mk
@@ -5,6 +5,9 @@
ifeq ($(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
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