106 lines
3.8 KiB
Makefile
106 lines
3.8 KiB
Makefile
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2019 MediaTek Inc.
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KERNEL_ENV_PATH := $(call my-dir)
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KERNEL_ROOT_DIR := $(PWD)
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define touch-kernel-image-timestamp
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if [ -e $(1) ] && [ -e $(2) ] && cmp -s $(1) $(2); then \
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echo $(2) has no change;\
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mv -f $(1) $(2);\
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else \
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rm -f $(1);\
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fi
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endef
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# '\\' in command is wrongly replaced to '\\\\' in kernel/out/arch/arm/boot/compressed/.piggy.xzkern.cmd
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define fixup-kernel-cmd-file
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if [ -e $(1) ]; then cp $(1) $(1).bak; sed -e 's/\\\\\\\\/\\\\/g' < $(1).bak > $(1); rm -f $(1).bak; fi
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endef
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ifneq ($(strip $(TARGET_NO_KERNEL)),true)
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KERNEL_DIR := $(KERNEL_ENV_PATH)
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mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
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current_dir := $(notdir $(patsubst %/,%,$(dir $(mkfile_path))))
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kernel_build_config_suffix := .mtk
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ifeq ($(KERNEL_TARGET_ARCH),arm64)
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kernel_build_config_suffix := $(kernel_build_config_suffix).aarch64
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ifeq ($(strip $(TARGET_KERNEL_USE_CLANG)),true)
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else
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kernel_build_config_suffix := $(kernel_build_config_suffix).gcc
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endif
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else
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kernel_build_config_suffix := $(kernel_build_config_suffix).arm
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ifeq ($(strip $(TARGET_KERNEL_USE_CLANG)),true)
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else
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$(error TARGET_KERNEL_USE_CLANG is not set)
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endif
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endif
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ifeq ($(PLATFORM_VERSION),Tiramisu)
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kernel_build_config_suffix := $(kernel_build_config_suffix).tiramisu
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endif
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include $(current_dir)/build.config$(kernel_build_config_suffix)
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ARGS := CROSS_COMPILE=$(CROSS_COMPILE)
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ifneq ($(LLVM),)
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ARGS += LLVM=1
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ifneq ($(filter-out false,$(USE_CCACHE)),)
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CCACHE_EXEC ?= /usr/bin/ccache
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CCACHE_EXEC := $(abspath $(wildcard $(CCACHE_EXEC)))
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else
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CCACHE_EXEC :=
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endif
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ifneq ($(CCACHE_EXEC),)
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ARGS += CCACHE_CPP2=yes CC='$(CCACHE_EXEC) clang'
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else
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ARGS += CC=clang
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endif
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ifneq ($(LLVM_IAS),)
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ARGS += LLVM_IAS=$(LLVM_IAS)
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endif
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ifeq ($(HOSTCC),)
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ifneq ($(CC),)
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ARGS += HOSTCC=$(CC)
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endif
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else
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ARGS += HOSTCC=$(HOSTCC)
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endif
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ifneq ($(LD),)
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ARGS += LD=$(LD) HOSTLD=$(LD)
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ifneq ($(suffix $(LD)),)
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ARGS += HOSTLDFLAGS=-fuse-ld=$(subst .,,$(suffix $(LD)))
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endif
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endif
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ifneq ($(LD_LIBRARY_PATH),)
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ARGS += LD_LIBRARY_PATH=$(KERNEL_ROOT_DIR)/$(LD_LIBRARY_PATH)
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endif
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endif
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TARGET_KERNEL_CROSS_COMPILE := $(KERNEL_ROOT_DIR)/$(LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN)/$(CROSS_COMPILE)
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ifeq ($(wildcard $(TARGET_PREBUILT_KERNEL)),)
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KERNEL_OUT ?= $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
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KERNEL_ROOT_OUT := $(if $(filter /% ~%,$(KERNEL_OUT)),,$(KERNEL_ROOT_DIR)/)$(KERNEL_OUT)
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ifeq ($(KERNEL_TARGET_ARCH), arm64)
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KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/Image.gz
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KERNEL_DTB_TARGET := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/dts/mediatek/$(TARGET_BOARD_PLATFORM).dtb
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else
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KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/zImage
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KERNEL_DTB_TARGET := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/dts/$(TARGET_BOARD_PLATFORM).dtb
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endif
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INSTALLED_MTK_DTB_TARGET := $(BOARD_PREBUILT_DTBIMAGE_DIR)/mtk_dtb
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BUILT_KERNEL_TARGET := $(KERNEL_ZIMAGE_OUT).bin
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INSTALLED_KERNEL_TARGET := $(PRODUCT_OUT)/kernel
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TARGET_KERNEL_CONFIG := $(KERNEL_OUT)/.config
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KERNEL_CONFIG_FILE := $(KERNEL_DIR)/arch/$(KERNEL_TARGET_ARCH)/configs/$(word 1,$(KERNEL_DEFCONFIG))
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KERNEL_MAKE_OPTION := O=$(KERNEL_ROOT_OUT) ARCH=$(KERNEL_TARGET_ARCH) $(ARGS) ROOTDIR=$(KERNEL_ROOT_DIR)
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KERNEL_MAKE_PATH_OPTION := /usr/bin:/bin
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KERNEL_MAKE_OPTION += PATH=$(KERNEL_ROOT_DIR)/$(CLANG_PREBUILT_BIN):$(KERNEL_ROOT_DIR)/$(LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN):$(KERNEL_MAKE_PATH_OPTION):$$PATH
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else
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BUILT_KERNEL_TARGET := $(TARGET_PREBUILT_KERNEL)
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endif #TARGET_PREBUILT_KERNEL is empty
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KERNEL_MAKE_OPTION += PROJECT_DTB_NAMES='$(PROJECT_DTB_NAMES)'
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endif #TARGET_NO_KERNEL
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