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140 lines
6.0 KiB
140 lines
6.0 KiB
# 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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TARGET_KERNEL_CLANG_COMPILE := |
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CC := $(TARGET_KERNEL_CROSS_COMPILE)gcc |
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ifeq ($(strip $(TARGET_KERNEL_USE_CLANG)),true) |
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TARGET_KERNEL_CLANG_COMPILE := CLANG_TRIPLE=aarch64-linux-gnu- |
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CC := $(KERNEL_ROOT_DIR)/prebuilts/clang/host/linux-x86/clang-r353983c/bin/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-androidkernel- |
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TARGET_KERNEL_CLANG_COMPILE := |
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CC := $(TARGET_KERNEL_CROSS_COMPILE)gcc |
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endif |
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ifeq ($(USE_CCACHE), true) |
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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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TARGET_KERNEL_CLANG_COMPILE += CCACHE_CPP2=yes CC='$(CCACHE_EXEC) $(CC)' |
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else |
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TARGET_KERNEL_CLANG_COMPILE += CC=$(CC) |
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endif |
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KERNEL_HOST_GCC_PREFIX := $(patsubst %strip,%,$(HOST_STRIP)) |
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ifeq (yes,yes) |
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# KERNEL_HOSTCC := $(KERNEL_ROOT_DIR)/$(KERNEL_HOST_GCC_PREFIX)gcc |
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# KERNEL_HOSTCXX := $(KERNEL_ROOT_DIR)/$(KERNEL_HOST_GCC_PREFIX)g++ |
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KERNEL_HOSTCC := /usr/bin/gcc |
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KERNEL_HOSTCXX := /usr/bin/g++ |
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else |
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KERNEL_HOST_GCC_TOOLCHAIN := $(patsubst %/,%,$(dir $(patsubst %/,%,$(dir $(HOST_STRIP))))) |
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KERNEL_HOST_CLANG_FLAGS := --gcc-toolchain=$(KERNEL_ROOT_DIR)/$(KERNEL_HOST_GCC_TOOLCHAIN) --sysroot $(KERNEL_ROOT_DIR)/$(KERNEL_HOST_GCC_TOOLCHAIN)/sysroot $(patsubst -B%,-B$(KERNEL_ROOT_DIR)/%,$(filter -B%,$(SOONG_CLANG_HOST_GLOBAL_LDFLAGS))) $(patsubst -L%,-L$(KERNEL_ROOT_DIR)/%,$(filter -L%,$(SOONG_CLANG_HOST_GLOBAL_LDFLAGS))) |
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KERNEL_HOSTCC := "$(KERNEL_ROOT_DIR)/$(CLANG) $(KERNEL_HOST_CLANG_FLAGS)" |
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KERNEL_HOSTCXX := "$(KERNEL_ROOT_DIR)/$(CLANG_CXX) $(KERNEL_HOST_CLANG_FLAGS)" |
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endif |
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ifeq ($(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 ($(KERNEL_TARGET_ARCH), arm64) |
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ifeq ($(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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KERNEL_DTB_FILE := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/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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INSTALLED_DTB_OVERLAY_TARGET := $(PRODUCT_OUT)/odmdtbo.img |
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BUILT_DTB_OVERLAY_TARGET := $(KERNEL_OUT)/arch/$(KERNEL_TARGET_ARCH)/boot/dts/odmdtbo.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=$(KERNEL_ROOT_OUT) ARCH=$(KERNEL_TARGET_ARCH) CROSS_COMPILE=$(TARGET_KERNEL_CROSS_COMPILE) $(TARGET_KERNEL_CLANG_COMPILE) ROOTDIR=$(KERNEL_ROOT_DIR) |
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ifdef MTK_DTBO_FEATURE |
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KERNEL_MAKE_OPTION += MTK_DTBO_FEATURE=$(MTK_DTBO_FEATURE) |
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endif |
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ifdef KERNEL_HOSTCC |
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KERNEL_MAKE_OPTION += HOSTCC=$(KERNEL_HOSTCC) |
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endif |
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ifdef KERNEL_HOSTCXX |
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KERNEL_MAKE_OPTION += HOSTCXX=$(KERNEL_HOSTCXX) |
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endif |
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ifeq ($(KERNEL_TARGET_ARCH),arm64) |
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ifeq ($(strip $(TARGET_KERNEL_USE_CLANG)),true) |
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# for CONFIG_LTO_CLANG to find clang llvm-dis & llvm-ar & LLVMgold.so |
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KERNEL_MAKE_OPTION += LD_LIBRARY_PATH=$(CLANG_PATH)/lib64:$$LD_LIBRARY_PATH |
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KERNEL_MAKE_OPTION += PATH=$(CLANG_PATH)/bin/:$$PATH |
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endif |
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endif |
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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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