mirror of
https://github.com/Dichgrem/GKI-build.git
synced 2025-12-16 13:42:00 -05:00
117 lines
3.3 KiB
Bash
117 lines
3.3 KiB
Bash
#!/bin/bash
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# 设置终端颜色变量（红、绿、黄、白、青）
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R="$(printf '\033[1;31m')" # 红色
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G="$(printf '\033[1;32m')" # 绿色
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Y="$(printf '\033[1;33m')" # 黄色
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W="$(printf '\033[1;37m')" # 白色
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C="$(printf '\033[1;36m')" # 青色
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# 内核源码根目录（当前工作目录）
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export KERNEL_DIR=$(pwd)
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# LTO（Link Time Optimization）模式，可由外部传入：none / thin / full
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export LTO=${LTO}
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# 内核 defconfig 文件（默认配置文件）
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export KERNEL_DEFCONFIG=config_defconfig
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# 编译输出目录，避免污染源码目录
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export OUT=out
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# 工具链路径（根据环境自行调整）
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export CLANG_PATH=/home/dich/kernel/clang-r487747c
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export GCC64_PATH=/home/dich/kernel/aarch64-linux-android-4.9
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export GCC32_PATH=/home/dich/kernel/arm-linux-androideabi-4.9
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# 添加 Clang 工具链到 PATH
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export PATH=${CLANG_PATH}/bin:${PATH}
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# 指定目标架构
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export ARCH=arm64
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export SUBARCH=arm64
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# 仅使用 Clang 编译所需配置
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export LLVM=1
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export BUILD_INITRAMFS=1
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# 编译线程数（可通过参数覆盖），默认 32 线程
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# 使用示例：./build.sh 8
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TH_COUNT=32
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# 编译所需基础参数
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export DEF_ARGS="O=${OUT} \
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ARCH=${ARCH} \
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CROSS_COMPILE=aarch64-linux-gnu- \
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CROSS_COMPILE_COMPAT=arm-linux-gnueabi- \
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CC=${CLANG_PATH}/bin/clang \
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AR=${CLANG_PATH}/bin/llvm-ar \
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NM=${CLANG_PATH}/bin/llvm-nm \
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LD=${CLANG_PATH}/bin/ld.lld \
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HOSTCC=${CLANG_PATH}/bin/clang \
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HOSTCXX=${CLANG_PATH}/bin/clang++ \
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OBJCOPY=${CLANG_PATH}/bin/llvm-objcopy \
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OBJDUMP=${CLANG_PATH}/bin/llvm-objdump \
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READELF=${CLANG_PATH}/bin/llvm-readelf \
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OBJSIZE=${CLANG_PATH}/bin/llvm-size \
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STRIP=${CLANG_PATH}/bin/llvm-strip \
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LLVM_IAS=1 \
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LLVM=1"
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# 最终编译参数：多线程 + 基础参数
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export BUILD_ARGS="-j${TH_COUNT} ${DEF_ARGS}"
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echo "=============== Make defconfig ==============="
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# 生成 defconfig 配置文件
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make ${DEF_ARGS} ${KERNEL_DEFCONFIG}
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# 如果 make defconfig 失败则退出
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if [[ "0" != "$?" ]]; then
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echo -e ">>> ${R}make defconfig error, 出错!"
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exit 1
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fi
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# 处理 LTO 配置（仅支持 none/thin/full 三种模式）
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if [ "${LTO}" = "none" -o "${LTO}" = "thin" -o "${LTO}" = "full" ]; then
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echo "========================================================"
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echo " Modifying LTO mode to '${LTO}'"
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set -x # 打印执行的命令，便于调试
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if [ "${LTO}" = "none" ]; then
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${KERNEL_DIR}/scripts/config --file ${OUT}/.config \
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-d LTO_CLANG \
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-e LTO_NONE \
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-d LTO_CLANG_THIN \
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-d LTO_CLANG_FULL \
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-d THINLTO
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elif [ "${LTO}" = "thin" ]; then
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# thin LTO 模式（某些内核可能不支持）
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${KERNEL_DIR}/scripts/config --file ${OUT}/.config \
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-e LTO_CLANG \
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-d LTO_NONE \
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-e LTO_CLANG_THIN \
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-d LTO_CLANG_FULL \
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-e THINLTO
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elif [ "${LTO}" = "full" ]; then
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# full LTO 模式
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${KERNEL_DIR}/scripts/config --file ${OUT}/.config \
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-e LTO_CLANG \
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-d LTO_NONE \
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-d LTO_CLANG_THIN \
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-e LTO_CLANG_FULL \
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-d THINLTO
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fi
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set +x # 关闭命令打印
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elif [ -n "${LTO}" ]; then
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echo "LTO= 必须是 'none', 'thin' 或 'full' 之一。"
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exit 1
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fi
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echo "=============== Make Kernel ==============="
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# 开始编译内核
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make ${BUILD_ARGS}
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if [[ "0" != "$?" ]]; then
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echo ">>> ${R}build kernel error, 构建失败!"
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exit 1
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fi
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echo ">>> ${G}build Kernel 成功"
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exit 0
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