2022-02-11 13:52:13 +00:00
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CUSTOM_TARGET_DEPS := kernel_build.phony
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2024-06-26 18:27:09 +00:00
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LX_DIR := $(call select_from_ports,legacy_linux)/src/linux
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2022-02-11 13:52:13 +00:00
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PWD := $(shell pwd)
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LX_MK_ARGS = ARCH=$(LINUX_ARCH) CROSS_COMPILE=$(CROSS_DEV_PREFIX)
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#
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# Linux kernel configuration
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#
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# define 'LX_ENABLE' and 'LX_DISABLE'
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include $(REP_DIR)/src/pc_linux/target.inc
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# filter for make output of kernel build system
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BUILD_OUTPUT_FILTER = 2>&1 | sed "s/^/ [Linux] /"
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2022-03-10 14:25:50 +00:00
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# do not confuse third-party sub-makes
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unexport .SHELLFLAGS
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2022-02-11 13:52:13 +00:00
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kernel_config.tag:
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$(MSG_CONFIG)Linux
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$(VERBOSE)$(MAKE) -C $(LX_DIR) O=$(PWD) $(LX_MK_ARGS) tinyconfig $(BUILD_OUTPUT_FILTER)
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$(VERBOSE)$(LX_DIR)/scripts/config $(addprefix --enable ,$(LX_ENABLE))
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$(VERBOSE)$(LX_DIR)/scripts/config $(addprefix --disable ,$(LX_DISABLE))
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$(VERBOSE)$(MAKE) $(LX_MK_ARGS) olddefconfig $(BUILD_OUTPUT_FILTER)
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$(VERBOSE)$(MAKE) $(LX_MK_ARGS) prepare $(BUILD_OUTPUT_FILTER)
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$(VERBOSE)touch $@
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# update Linux kernel config on makefile changes
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kernel_config.tag: $(MAKEFILE_LIST)
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kernel_build.phony: kernel_config.tag
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