update:build.sh

build.sh

@@ -6,22 +6,41 @@ export ARCH=arm64
 export SUBARCH=arm64
 export KCONFIG_CONFIG=$PWD/myconfig
 
+# 设置工具链路径变量
+export CLANG_PATH=~/kernel/toolchains/clang-21/bin
+export PATH=$CLANG_PATH:$PATH
+
+# 清理构建目录
+rm -rf out && mkdir -p out
+
 # 生成默认 config
 make O=out KCONFIG_CONFIG=$KCONFIG_CONFIG olddefconfig
 
-# 编译内核，禁用 frame-larger-than 的错误处理
-make -j$(nproc) O=out WERROR=0 \
-  KCFLAGS="-Wno-error=frame-larger-than= -O3 -pipe" \
+# 编译内核
+make -j$(nproc) O=out \
+  LLVM=1 \
+  LTO=thin \
+  WERROR=0 \
+  KBUILD_NO_WERROR=1 \
+  CC=clang \
+  AR=llvm-ar \
+  LD=ld.lld \
+  NM=llvm-nm \
+  OBJCOPY=llvm-objcopy \
+  OBJDUMP=llvm-objdump \
+  STRIP=llvm-strip \
+  HOSTCC=clang \
+  HOSTCXX=clang++ \
+  CROSS_COMPILE= \
+  CROSS_COMPILE_ARM32=arm-linux-androideabi- \
+  KCFLAGS="--target=aarch64-linux-gnu -O3 -pipe -Wno-error" \
   KCPPFLAGS="-DCONFIG_CC_OPTIMIZE_FOR_PERFORMANCE" \
-  HOSTCFLAGS="-O3 -pipe" \
-  HOSTCXXFLAGS="-O3 -pipe" \
-  NM=~/kernel/toolchains/clang-14/bin/llvm-nm \
-  OBJCOPY=~/kernel/toolchains/clang-14/bin/llvm-objcopy \
-  LD=~/kernel/toolchains/clang-14/bin/ld.lld \
-  CROSS_COMPILE=~/kernel/toolchains/clang-14/bin/aarch64-linux-gnu- \
-  CROSS_COMPILE_ARM32=~/kernel/toolchains/gcc-arm-4.9/bin/arm-linux-androideabi- \
-  CC=~/kernel/toolchains/clang-14/bin/clang \
-  AR=~/kernel/toolchains/clang-14/bin/llvm-ar \
-  OBJDUMP=~/kernel/toolchains/clang-14/bin/llvm-objdump \
-  STRIP=~/kernel/toolchains/clang-14/bin/llvm-strip \
-  2>&1 | tee error.log
+  HOSTCFLAGS="-O3 -pipe -Wno-error" \
+  HOSTCXXFLAGS="-O3 -pipe -Wno-error" \
+  2>&1 | tee out/error.log
+
+tail -n 100 out/error.log
+
+# 记录结束时间
+endtime=$(date +'%Y-%m-%d %H:%M:%S')
+echo "Build finished at: $endtime"