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Do not assume GKI just with vendor_boot.

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This change ensures changes to GENERIC_KERNEL_CMDLINE only affects
devices that explicitly says it uses GKI/generic boot image.

In details, if the device has vendor_boot, but does not explicitly
specify that it uses GKI/generic boot image, do not include
GENERIC_KERNEL_CMDLINE in boot. boot cmdline is left empty
in this case.

The old logic:
- If device uses GKI *OR* has vendor_boot:
  boot uses GENERIC_KERNEL_CMDLINE, and do not include kernel base
  and pagesize.
  - If device has vendor_boot, INTERNAL_KERNEL_CMDLINE, kernel base
    and pagesize goes in vendor_boot.
- If device does not use GKI nor have vendor_boot:
  boot uses INTERNAL_KERNEL_CMDLINE, and includes kernel base and
  pagesize.

The new logic:
- If using GKI, boot uses GENERIC_KERNEL_CMDLINE. Remove kernel base
   and pagesize because they are device-specific.
- If not using GKI:
  - If building vendor_boot, INTERNAL_KERNEL_CMDLINE, base and
    pagesize goes in vendor_boot; boot does not have cmdline, base or
    pagesize.
  - Otherwise, put them in boot

Comparison of the code before and after:
- If device uses GKI,
  - For boot partition:
    - cmdline continues to be GENERIC_KERNEL_CMDLINE
    - kernel base and pagesize continues to be excluded
  - For vendor_boot partition:
    - cmdline continues to be INTERNAL_KERNEL_CMDLINE
    - kernel base and pagesize continues to be included
- If device does not use GKI:
  - If device has a vendor_boot partition:
    - For boot partition:
      * cmdline changes from GENERIC_KERNEL_CMDLINE to empty
      - kernel base and pagesize continues to be excluded
    - For vendor_boot partition:
      - cmdline continues to be INTERNAL_KERNEL_CMDLINE
      - kernel base and pagesize continues to be included
  - If device does not have a vendor_boot partition:
    - For boot partition:
      - cmdline continues to be INTERNAL_KERNEL_CMDLINE
      - kernel base and pagesize continues to be included

Test: builds
Bug: 171512004

Change-Id: I4feac435698f43ac299b430bff66147057865a62
This commit is contained in:
Yifan Hong 2020-10-28 13:50:47 -07:00
parent 865b6605ca
commit 46aff099d2
1 changed files with 20 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
core/Makefile
View file

@ -754,30 +754,27 @@ endif
INTERNAL_KERNEL_CMDLINE := $(strip $(INTERNAL_KERNEL_CMDLINE) buildvariant=$(TARGET_BUILD_VARIANT) $(VERITY_KEYID))
boot_uses_generic_kernel_image :=
ifdef BUILDING_VENDOR_BOOT_IMAGE
# building vendor boot image, dtb/base/pagesize go there
boot_uses_generic_kernel_image := true
else ifeq (true,$(BOARD_USES_GENERIC_KERNEL_IMAGE))
boot_uses_generic_kernel_image := true
endif
ifeq (true,$(boot_uses_generic_kernel_image))
# kernel cmdline/base/pagesize in boot.
# - If using GKI, use GENERIC_KERNEL_CMDLINE. Remove kernel base and pagesize because they are
# device-specific.
# - If not using GKI:
# - If building vendor_boot, INTERNAL_KERNEL_CMDLINE, base and pagesize goes in vendor_boot.
# - Otherwise, put them in boot.
ifeq (true,$(BOARD_USES_GENERIC_KERNEL_IMAGE))
ifdef GENERIC_KERNEL_CMDLINE
INTERNAL_BOOTIMAGE_ARGS += --cmdline "$(GENERIC_KERNEL_CMDLINE)"
endif
else # boot_uses_generic_kernel_image != true
else ifndef BUILDING_VENDOR_BOOT_IMAGE # && BOARD_USES_GENERIC_KERNEL_IMAGE != true
ifdef INTERNAL_KERNEL_CMDLINE
INTERNAL_BOOTIMAGE_ARGS += --cmdline "$(INTERNAL_KERNEL_CMDLINE)"
endif
ifdef BOARD_KERNEL_BASE
INTERNAL_BOOTIMAGE_ARGS += --base $(BOARD_KERNEL_BASE)
endif
ifdef BOARD_KERNEL_PAGESIZE
INTERNAL_BOOTIMAGE_ARGS += --pagesize $(BOARD_KERNEL_PAGESIZE)
endif
ifdef INTERNAL_KERNEL_CMDLINE
INTERNAL_BOOTIMAGE_ARGS += --cmdline "$(INTERNAL_KERNEL_CMDLINE)"
endif
endif # boot_uses_generic_kernel_image == true
boot_uses_generic_kernel_image :=
endif # BUILDING_VENDOR_BOOT_IMAGE == "" && BOARD_USES_GENERIC_KERNEL_IMAGE != true
INTERNAL_MKBOOTIMG_VERSION_ARGS := \
--os_version $(PLATFORM_VERSION_LAST_STABLE) \
@ -4541,11 +4538,9 @@ endif
ifdef INSTALLED_KERNEL_TARGET
$(hide) cp $(INSTALLED_KERNEL_TARGET) $(zip_root)/BOOT/
endif
ifdef INSTALLED_VENDOR_BOOTIMAGE_TARGET
ifeq (true,$(BOARD_USES_GENERIC_KERNEL_IMAGE))
echo "$(GENERIC_KERNEL_CMDLINE)" > $(zip_root)/BOOT/cmdline
else ifeq (true,$(BOARD_USES_GENERIC_KERNEL_IMAGE))
echo "$(GENERIC_KERNEL_CMDLINE)" > $(zip_root)/BOOT/cmdline
else # INSTALLED_VENDOR_BOOTIMAGE_TARGET == "" && BOARD_USES_GENERIC_KERNEL_IMAGE != true
else ifndef INSTALLED_VENDOR_BOOTIMAGE_TARGET # && BOARD_USES_GENERIC_KERNEL_IMAGE != true
echo "$(INTERNAL_KERNEL_CMDLINE)" > $(zip_root)/BOOT/cmdline
ifdef INSTALLED_2NDBOOTLOADER_TARGET
cp $(INSTALLED_2NDBOOTLOADER_TARGET) $(zip_root)/BOOT/second