96 lines
4.1 KiB
Makefile
Executable file
96 lines
4.1 KiB
Makefile
Executable file
# Copyright (C) 2017 MediaTek Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See http://www.gnu.org/licenses/gpl-2.0.html for more details.
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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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define move-kernel-module-files
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v=`cat $(2)/include/config/kernel.release`;\
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for i in `grep -h '\.ko' /dev/null $(2)/.tmp_versions/*.mod`; do \
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o=`basename $$i`;\
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if [ -e $(1)/lib/modules/$$o ] && cmp -s $(1)/lib/modules/$$v/kernel/$$i $(1)/lib/modules/$$o; then \
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echo $(1)/lib/modules/$$o has no change;\
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else \
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echo Update $(1)/lib/modules/$$o;\
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mv -f $(1)/lib/modules/$$v/kernel/$$i $(1)/lib/modules/$$o;\
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fi;\
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done
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endef
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define clean-kernel-module-dirs
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rm -rf $(1)/lib/modules/$(if $(2),`cat $(2)/include/config/kernel.release`,*/)
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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 := $(KERNEL_ENV_PATH)
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ifeq ($(KERNEL_TARGET_ARCH),arm64)
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TARGET_KERNEL_CROSS_COMPILE ?= $(KERNEL_ROOT_DIR)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-
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ifeq ($(strip $(TARGET_KERNEL_USE_CLANG)),true)
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TARGET_KERNEL_CLANG_COMPILE := CLANG_TRIPLE=aarch64-linux-gnu- CC=$(KERNEL_ROOT_DIR)/${LLVM_PREBUILTS_PATH}/clang
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endif
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else
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TARGET_KERNEL_CROSS_COMPILE ?= $(KERNEL_ROOT_DIR)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-linux-androideabi-4.9/bin/arm-linux-androideabi-
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# No CLANG support for arm yet
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TARGET_KERNEL_CLANG_COMPILE :=
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endif
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ifeq ($(wildcard $(TARGET_PREBUILT_KERNEL)),)
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KERNEL_OUT ?= $(if $(filter /% ~%,$(TARGET_OUT_INTERMEDIATES)),,$(KERNEL_ROOT_DIR)/)$(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ
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ifeq ($(KERNEL_TARGET_ARCH), arm64)
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ifeq ($(MTK_APPENDED_DTB_SUPPORT), yes)
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KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/Image.gz-dtb
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else
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KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/Image.gz
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endif
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else
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ifeq ($(MTK_APPENDED_DTB_SUPPORT), yes)
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KERNEL_ZIMAGE_OUT := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/zImage-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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endif
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endif
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export MTK_DTBO_FEATURE
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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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INSTALLED_DTB_OVERLAY_TARGET := $(PRODUCT_OUT)/dtbo.img
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BUILT_DTB_OVERLAY_TARGET := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/dts/dtbo.img
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TARGET_KERNEL_CONFIG := $(KERNEL_OUT)/.config
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KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr
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KERNEL_CONFIG_FILE := $(KERNEL_DIR)/arch/$(KERNEL_TARGET_ARCH)/configs/$(KERNEL_DEFCONFIG)
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KERNEL_CONFIG_MODULES := $(shell grep ^CONFIG_MODULES=y $(KERNEL_CONFIG_FILE))
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KERNEL_MODULES_OUT := $(if $(filter /% ~%,$(TARGET_OUT)),,$(KERNEL_ROOT_DIR)/)$(TARGET_OUT)
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KERNEL_MODULES_DEPS := $(if $(wildcard $(KERNEL_MODULES_OUT)/lib/modules/*.ko),$(wildcard $(KERNEL_MODULES_OUT)/lib/modules/*.ko),$(KERNEL_MODULES_OUT)/lib/modules)
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KERNEL_MODULES_SYMBOLS_OUT := $(if $(filter /% ~%,$(TARGET_OUT_UNSTRIPPED)),,$(KERNEL_ROOT_DIR)/)$(TARGET_OUT_UNSTRIPPED)/system
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KERNEL_MAKE_OPTION := O=$(KERNEL_OUT) ARCH=$(KERNEL_TARGET_ARCH) CROSS_COMPILE=$(TARGET_KERNEL_CROSS_COMPILE) $(TARGET_KERNEL_CLANG_COMPILE) ROOTDIR=$(KERNEL_ROOT_DIR) $(if $(strip $(SHOW_COMMANDS)),V=1)
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export TARGET_KERNEL_CROSS_COMPILE
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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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endif#TARGET_NO_KERNEL
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