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Commit 828828ba authored by Petri Gynther's avatar Petri Gynther
Browse files

Add support for building vendor_ramdisk.img 

Allow BoardConfig.mk to set:
BOARD_BUILD_VENDOR_RAMDISK_IMAGE := true

to build:
out/target/product/<name>/vendor_ramdisk.img

This is done to support GKI device kernel development.

Kernel developers build vmlinux + DTB + GKI kernel modules locally
and then use kernel build tools to output:

* vmlinux + ramdisk.img => boot.img
* GKI kernel modules + DTB + vendor_ramdisk.img => vendor_boot.img

In other words, kernel developers use ramdisk.img and vendor_ramdisk.img
as prebuilts for building flashable boot.img and vendor_boot.img
directly from the kernel development environment.

Test: make vendorramdisk with BOARD_BUILD_VENDOR_RAMDISK_IMAGE := true
Test: make vendorramdisk with BOARD_BUILD_VENDOR_RAMDISK_IMAGE omitted
Change-Id: Id67839887b6bf608f4a5f13384c551c12ee9fdbd
parent b579ef2c

core/Makefile

+7 −0
Original line number Diff line number Diff line
@@ -990,6 +990,13 @@ endif 
$(INTERNAL_VENDOR_RAMDISK_TARGET): $(MKBOOTFS) $(INTERNAL_VENDOR_RAMDISK_FILES) | $(COMPRESSION_COMMAND_DEPS)

	$(MKBOOTFS) -d $(TARGET_OUT) $(TARGET_VENDOR_RAMDISK_OUT) $(PRIVATE_ADDITIONAL_DIR) | $(COMPRESSION_COMMAND) > $@



ifeq (true,$(BOARD_BUILD_VENDOR_RAMDISK_IMAGE))

INSTALLED_VENDOR_RAMDISK_TARGET := $(PRODUCT_OUT)/vendor_ramdisk.img

$(INSTALLED_VENDOR_RAMDISK_TARGET): $(INTERNAL_VENDOR_RAMDISK_TARGET)

	$(call pretty,"Target vendor ram disk: $@")

	$(copy-file-to-target)

endif



INSTALLED_FILES_FILE_VENDOR_RAMDISK := $(PRODUCT_OUT)/installed-files-vendor-ramdisk.txt

INSTALLED_FILES_JSON_VENDOR_RAMDISK := $(INSTALLED_FILES_FILE_VENDOR_RAMDISK:.txt=.json)

$(INSTALLED_FILES_FILE_VENDOR_RAMDISK): .KATI_IMPLICIT_OUTPUTS := $(INSTALLED_FILES_JSON_VENDOR_RAMDISK)

core/main.mk

+4 −0
Original line number Diff line number Diff line
@@ -1487,6 +1487,9 @@ vendorbootimage: $(INSTALLED_VENDOR_BOOTIMAGE_TARGET) 
.PHONY: vendorbootimage_debug

vendorbootimage_debug: $(INSTALLED_VENDOR_DEBUG_BOOTIMAGE_TARGET)



.PHONY: vendorramdisk

vendorramdisk: $(INSTALLED_VENDOR_RAMDISK_TARGET)



.PHONY: productimage

productimage: $(INSTALLED_PRODUCTIMAGE_TARGET)
@@ -1545,6 +1548,7 @@ droidcore: $(filter $(HOST_OUT_ROOT)/%,$(modules_to_install)) \ 
    $(INSTALLED_VENDORIMAGE_TARGET) \

    $(INSTALLED_VENDOR_BOOTIMAGE_TARGET) \

    $(INSTALLED_VENDOR_DEBUG_BOOTIMAGE_TARGET) \

    $(INSTALLED_VENDOR_RAMDISK_TARGET) \

    $(INSTALLED_ODMIMAGE_TARGET) \

    $(INSTALLED_VENDOR_DLKMIMAGE_TARGET) \

    $(INSTALLED_ODM_DLKMIMAGE_TARGET) \