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Revert "kernel: Add support for external kernel configs"

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This reverts commit 1b1687b456.

Reason: Breaks variant defconfigs.
Change-Id: Ie81301eb5a3376ab969430eed54a432d7d300408
This commit is contained in:
Nolen Johnson
2025-04-22 15:17:00 -04:00
parent eef4080d27
commit 2130319a7f
1 changed files with 10 additions and 30 deletions
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40
build/tasks/kernel.mk
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@@ -26,10 +26,6 @@
# while all the others are fragments that will be merged
# to main one in .config.
# TARGET_KERNEL_RECOVERY_CONFIG = Same as above, but applicable to recovery kernel instead.
# TARGET_KERNEL_CONFIG_EXT = List of path to external kernel defconfigs.
# Same as TARGET_KERNEL_CONFIG, but paths are specified
# instead of filenames.
# TARGET_KERNEL_RECOVERY_CONFIG_EXT = Same as above, but applicable to recovery kernel instead.
# TARGET_KERNEL_VARIANT_CONFIG = Variant defconfig, optional
# TARGET_KERNEL_SELINUX_CONFIG = SELinux defconfig, optional
#
@@ -66,11 +62,6 @@
#
# KERNEL_LTO = Optional, force LTO to none / thin / full
#
# MERGE_ALL_KERNEL_CONFIGS_AT_ONCE = Optional, whether or not to merge all kernel config
# fragments in one merge_configs.sh call. if true,
# kernel config fragments will get merged faster, but
# may cause some differences.
#
# NEED_KERNEL_MODULE_ROOT = Optional, if true, install kernel
# modules in root instead of vendor
# NEED_KERNEL_MODULE_SYSTEM = Optional, if true, install kernel
@@ -90,11 +81,8 @@ ifneq ($(TARGET_NO_KERNEL_OVERRIDE),true)
## Externally influenced variables
KERNEL_SRC := $(TARGET_KERNEL_SOURCE)
# kernel configuration - mandatory
MERGE_ALL_KERNEL_CONFIGS_AT_ONCE ?= false
KERNEL_DEFCONFIG := $(TARGET_KERNEL_CONFIG)
KERNEL_DEFCONFIG_EXT := $(TARGET_KERNEL_CONFIG_EXT)
RECOVERY_DEFCONFIG := $(TARGET_KERNEL_RECOVERY_CONFIG)
RECOVERY_DEFCONFIG_EXT := $(TARGET_KERNEL_RECOVERY_CONFIG_EXT)
VARIANT_DEFCONFIG := $(TARGET_KERNEL_VARIANT_CONFIG)
SELINUX_DEFCONFIG := $(TARGET_KERNEL_SELINUX_CONFIG)
# dtb generation - optional
@@ -124,13 +112,12 @@ else
KERNEL_DEFCONFIG_ARCH := $(KERNEL_ARCH)
endif
KERNEL_DEFCONFIG_DIR := $(KERNEL_SRC)/arch/$(KERNEL_DEFCONFIG_ARCH)/configs
ALL_KERNEL_DEFCONFIG_SRCS := $(foreach config,$(KERNEL_DEFCONFIG),$(KERNEL_DEFCONFIG_DIR)/$(config))
ALL_KERNEL_DEFCONFIG_SRCS += $(KERNEL_DEFCONFIG_EXT)
ALL_RECOVERY_KERNEL_DEFCONFIG_SRCS := $(foreach config,$(RECOVERY_DEFCONFIG),$(KERNEL_DEFCONFIG_DIR)/$(config))
ALL_RECOVERY_KERNEL_DEFCONFIG_SRCS += $(RECOVERY_DEFCONFIG_EXT)
BASE_KERNEL_DEFCONFIG := $(word 1, $(KERNEL_DEFCONFIG))
BASE_KERNEL_DEFCONFIG_SRC := $(word 1, $(ALL_KERNEL_DEFCONFIG_SRCS))
BASE_RECOVERY_KERNEL_DEFCONFIG := $(word 1, $(RECOVERY_DEFCONFIG))
BASE_RECOVERY_KERNEL_DEFCONFIG_SRC := $(word 1, $(ALL_RECOVERY_KERNEL_DEFCONFIG_SRCS))
ifeq ($(TARGET_PREBUILT_KERNEL),)
@@ -181,7 +168,7 @@ ifeq "$(wildcard $(KERNEL_SRC) )" ""
endif
else
NEEDS_KERNEL_COPY := true
ifeq ($(TARGET_KERNEL_CONFIG)$(TARGET_KERNEL_CONFIG_EXT),)
ifeq ($(TARGET_KERNEL_CONFIG),)
$(warning **********************************************************)
$(warning * Kernel source found, but no configuration was defined *)
$(warning * Please add the TARGET_KERNEL_CONFIG variable to your *)
@@ -311,16 +298,9 @@ endef
# Generate kernel .config from a given defconfig
# $(1): Output path (The value passed to O=)
# $(2): The defconfig to process (full path to file)
# $(2): The defconfig to process (just the filename, no need for full path to file)
define make-kernel-config
cp $(word 1,$(2)) $(1)/.config
$(call internal-make-kernel-target,$(1),olddefconfig)
$(if $(filter true,$(MERGE_ALL_KERNEL_CONFIGS_AT_ONCE)),\
$(KERNEL_SRC)/scripts/kconfig/merge_config.sh -m -O $(1) $(1)/.config $(filter %.config,$(2)),
$(foreach config,$(filter %.config,$(2)),
$(KERNEL_SRC)/scripts/kconfig/merge_config.sh -m -O $(1) $(1)/.config $(config); \
$(call internal-make-kernel-target,$(1),olddefconfig);))
$(call internal-make-kernel-target,$(1),VARIANT_DEFCONFIG=$(VARIANT_DEFCONFIG) SELINUX_DEFCONFIG=$(SELINUX_DEFCONFIG) olddefconfig)
$(call internal-make-kernel-target,$(1),VARIANT_DEFCONFIG=$(VARIANT_DEFCONFIG) SELINUX_DEFCONFIG=$(SELINUX_DEFCONFIG) $(2))
$(hide) if [ "$(KERNEL_LTO)" = "none" ]; then \
$(KERNEL_SRC)/scripts/config --file $(1)/.config \
-d LTO_CLANG \
@@ -505,7 +485,7 @@ $(KERNEL_OUT):
$(KERNEL_CONFIG): $(KERNEL_OUT) $(ALL_KERNEL_DEFCONFIG_SRCS)
@echo "Building Kernel Config"
$(call make-kernel-config,$(KERNEL_OUT),$(ALL_KERNEL_DEFCONFIG_SRCS))
$(call make-kernel-config,$(KERNEL_OUT),$(KERNEL_DEFCONFIG))
$(TARGET_PREBUILT_INT_KERNEL): $(KERNEL_CONFIG) $(DEPMOD) $(DTC) $(KERNEL_MODULES_PARTITION_FILE_LIST) $(SYSTEM_KERNEL_MODULES_PARTITION_FILE_LIST)
@echo "Building Kernel Image ($(BOARD_KERNEL_IMAGE_NAME))"
@@ -587,7 +567,7 @@ kerneltags: $(KERNEL_CONFIG)
.PHONY: kernelsavedefconfig alldefconfig kernelconfig recoverykernelconfig
kernelsavedefconfig: $(KERNEL_OUT)
$(call make-kernel-config,$(KERNEL_OUT),$(BASE_KERNEL_DEFCONFIG_SRC))
$(call make-kernel-config,$(KERNEL_OUT),$(BASE_KERNEL_DEFCONFIG))
$(call make-kernel-target,savedefconfig)
cp $(KERNEL_OUT)/defconfig $(BASE_KERNEL_DEFCONFIG_SRC)
@@ -597,11 +577,11 @@ alldefconfig: $(KERNEL_OUT)
kernelconfig: $(KERNEL_OUT) $(ALL_KERNEL_DEFCONFIG_SRCS)
@echo "Building Kernel Config"
$(call make-kernel-config,$(KERNEL_OUT),$(ALL_KERNEL_DEFCONFIG_SRCS))
$(call make-kernel-config,$(KERNEL_OUT),$(KERNEL_DEFCONFIG))
recoverykernelconfig: $(KERNEL_OUT) $(ALL_RECOVERY_KERNEL_DEFCONFIG_SRCS)
@echo "Building Recovery Kernel Config"
$(call make-kernel-config,$(RECOVERY_KERNEL_OUT),$(ALL_RECOVERY_KERNEL_DEFCONFIG_SRCS))
$(call make-kernel-config,$(RECOVERY_KERNEL_OUT),$(RECOVERY_DEFCONFIG))
ifeq (true,$(filter true, $(TARGET_NEEDS_DTBOIMAGE) $(BOARD_KERNEL_SEPARATED_DTBO)))
ifneq ($(BOARD_CUSTOM_DTBOIMG_MK),)
@@ -700,7 +680,7 @@ $(RECOVERY_KERNEL_OUT):
$(RECOVERY_KERNEL_CONFIG): $(ALL_RECOVERY_KERNEL_DEFCONFIG_SRCS)
@echo "Building Recovery Kernel Config"
$(call make-kernel-config,$(RECOVERY_KERNEL_OUT),$(ALL_RECOVERY_KERNEL_DEFCONFIG_SRCS))
$(call make-kernel-config,$(RECOVERY_KERNEL_OUT),$(RECOVERY_DEFCONFIG))
$(TARGET_PREBUILT_INT_RECOVERY_KERNEL): $(RECOVERY_KERNEL_CONFIG) $(DEPMOD) $(DTC)
@echo "Building Recovery Kernel Image ($(BOARD_KERNEL_IMAGE_NAME))"