diff --git a/BUILD.gn b/BUILD.gn
index 31799019..696f2219 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -77,7 +77,8 @@ build_ext_component("make") {
   if (board_name == "hi3516dv300" && enable_tee_ree) {
     tee_enable = "tee"
   }
-  prebuilts = "sh build.sh ${board_name} ${ohos_build_compiler} ${root_build_dir} ${ohos_build_type} ${tee_enable} \"${device_company}\" \"${product_path}\""
   outdir = rebase_path(get_path_info(".", "out_dir"))
-  command = "make clean OUTDIR=$outdir PRODUCT_PATH=\"${product_path}\" && make rootfs VERSION=\"${ohos_version}\" PRODUCT_PATH=\"${product_path}\" -j 16 OUTDIR=$outdir"
+  sysroot_path = rebase_path(ohos_current_sysroot)
+  arch_cflags = string_join(" ", target_arch_cflags)
+  command = "./build.sh ${board_name} ${ohos_build_compiler} ${root_build_dir} ${ohos_build_type} ${tee_enable} \"${device_company}\" \"${product_path}\" $outdir \"${ohos_version}\" ${sysroot_path} \"${arch_cflags}\""
 }
diff --git a/Makefile b/Makefile
index 51868d66..9323917e 100644
--- a/Makefile
+++ b/Makefile
@@ -82,6 +82,9 @@ ROOTFS_DIR = $(OUT)/rootfs
 ROOTFS_ZIP = $(OUT)/rootfs.zip
 VERSION =
 
+SYSROOT_PATH ?= $(LITEOSTOPDIR)/../../prebuilts/lite/sysroot
+export SYSROOT_PATH
+
 all: $(OUT) $(BUILD) $(LITEOS_TARGET) $(APPS)
 lib: $(OUT) $(BUILD) $(LITEOS_LIBS_TARGET)
 
@@ -165,11 +168,15 @@ $(LITEOS_TARGET): $(__LIBS)
 $(APPS): $(LITEOS_TARGET)
 	$(HIDE)$(MAKE) -C apps all
 
+ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
+MULTILIB := $(patsubst $(shell $(CC) --target=$(LLVM_TARGET) $(ARCH_CFLAGS) -print-file-name=lib/$(LLVM_TARGET)/)%,%,$(dir $(shell $(CC) --target=$(LLVM_TARGET) $(ARCH_CFLAGS) -print-libgcc-file-name)))
+endif
+
 prepare:
 	$(HIDE)mkdir -p $(OUT)/musl
 ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-	$(HIDE)cp -f $(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/usr/lib/$(LLVM_TARGET)/a7_softfp_neon-vfpv4/libc.so $(OUT)/musl
-	$(HIDE)cp -f $(LITEOS_COMPILER_PATH)/lib/$(LLVM_TARGET)/c++/a7_softfp_neon-vfpv4/libc++.so $(OUT)/musl
+	$(HIDE)cp -f $(SYSROOT_PATH)/usr/lib/$(LLVM_TARGET)/$(MULTILIB)/libc.so $(OUT)/musl
+	$(HIDE)cp -f $(LITEOS_COMPILER_PATH)/lib/$(LLVM_TARGET)/c++/$(MULTILIB)/libc++.so $(OUT)/musl
 else
 	$(HIDE)cp -f $(LITEOS_COMPILER_PATH)/target/usr/lib/libc.so $(OUT)/musl
 	$(HIDE)cp -f $(LITEOS_COMPILER_PATH)/arm-linux-musleabi/lib/libstdc++.so.6 $(OUT)/musl
diff --git a/apps/config.mk b/apps/config.mk
index 3fda230a..417446cb 100644
--- a/apps/config.mk
+++ b/apps/config.mk
@@ -44,7 +44,7 @@ CFLAGS := -std=c99 -fno-exceptions $(BASE_OPTS) $(LITEOS_COPTS_OPTMIZE)
 CXXFLAGS := -std=c++11 -fexceptions -fpermissive -frtti $(BASE_OPTS) $(LITEOS_COPTS_OPTMIZE)
 LDCFLAGS  := -lc
 ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-LLVM_SYSROOT := --sysroot=$(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/
+LLVM_SYSROOT := --sysroot=$(SYSROOT_PATH) $(ARCH_CFLAGS)
 LDCXXFLGS := -lc++ -lc++abi -lc
 else
 BASE_OPTS += -Wl,-z,relro,-z,now
diff --git a/apps/mksh/Makefile b/apps/mksh/Makefile
index d6fd31a9..8aa8bcdc 100755
--- a/apps/mksh/Makefile
+++ b/apps/mksh/Makefile
@@ -38,11 +38,11 @@ BUILD_DIR := $(MKSH_DIR)/build
 BUILD_LOG := $(MKSH_DIR)/build.log
 TARGET_OS := OpenHarmony
 
-LOCAL_CFLAGS := -flto -fdata-sections -ffunction-sections -Oz -fstack-protector-strong -D_FORTIFY_SOURCE=2 -mcpu=cortex-a7 -mfloat-abi=softfp -mfpu=neon-vfpv4
-LOCAL_CFLAGS += --target=arm-liteos --sysroot=$(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/
+LOCAL_CFLAGS := -flto -fdata-sections -ffunction-sections -Oz -fstack-protector-strong -D_FORTIFY_SOURCE=2
+LOCAL_CFLAGS += --target=arm-liteos $(LLVM_SYSROOT)
 LOCAL_CFLAGS += -DMKSH_DISABLE_TTY_WARNING -DMKSH_SMALL=1 -DMKSH_ASSUME_UTF8=1 -DMKSH_SMALL_BUT_FAST=0 -DMKSH_S_NOVI=1 -DHAVE_CAN_FSTACKPROTECTORSTRONG=1
 LOCAL_CFLAGS += -DMKSH_LESS_CMDLINE_EDITING -DMKSH_LESS_BUILDINS -DMKSH_NO_INITCOMS -DADAPT_FOR_LITEOS_A
-LOCAL_LDFLAGS := -Wl,--gc-sections -flto -O2
+LOCAL_LDFLAGS := -Wl,--gc-sections -flto -O2 --target=arm-liteos $(LLVM_SYSROOT)
 
 all:$(MKSH)
 
diff --git a/apps/toybox/Makefile b/apps/toybox/Makefile
index c23cf9ea..0af3c951 100644
--- a/apps/toybox/Makefile
+++ b/apps/toybox/Makefile
@@ -46,8 +46,8 @@ else
 	$(HIDE)$(CP) $(LITEOSTHIRDPARTY)/$(TOYBOX)/. $(BUILD_DIR)
 	$(HIDE)$(CP) -p $(LITEOSTHIRDPARTY)/$(TOYBOX)/porting/liteos_a/. $(BUILD_DIR)
 endif
-	$(HIDE)CFLAGS="-D_FORTIFY_SOURCE=2 -fstack-protector-strong --target=arm-liteos \
-	--sysroot=$(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/" CC="$(CC)" OUTNAME=$(OUTNAME) \
+	$(HIDE)CFLAGS="-D_FORTIFY_SOURCE=2 -fstack-protector-strong --target=arm-liteos $(LLVM_SYSROOT)" CC="$(CC)" OUTNAME=$(OUTNAME) \
+	LDFLAGS="--target=arm-liteos $(LLVM_SYSROOT)" \
 	make -C $(BUILD_DIR) toybox -j> $(BUILD_LOG) 2>&1
 	$(HIDE)$(CP) $(BUILD_DIR)/$(TOYBOX) .
 	$(HIDE)$(STRIP) $(TOYBOX)
diff --git a/arch/arm/arm.mk b/arch/arm/arm.mk
index 920b8026..ddfbf4cf 100644
--- a/arch/arm/arm.mk
+++ b/arch/arm/arm.mk
@@ -65,7 +65,7 @@ LITEOS_FPU_OPTS         := -mfpu=$(LOSCFG_ARCH_FPU)
 LITEOS_GCCLIB           := $(subst cortex-,,$(LOSCFG_ARCH_CPU))_softfp_$(LOSCFG_ARCH_FPU)
 endif
 
-LITEOS_CORE_COPTS        = $(LITEOS_CPU_OPTS) $(LITEOS_FLOAT_OPTS) $(LITEOS_FPU_OPTS)
+LITEOS_CORE_COPTS        = $(or $(ARCH_CFLAGS),$(LITEOS_CPU_OPTS) $(LITEOS_FLOAT_OPTS) $(LITEOS_FPU_OPTS))
 LITEOS_INTERWORK        += $(LITEOS_CORE_COPTS)
 LITEOS_NODEBUG          += $(LITEOS_CORE_COPTS)
 LITEOS_ASOPTS           += $(LITEOS_CPU_OPTS)
diff --git a/build.sh b/build.sh
index 41f4ddae..be60ebf0 100755
--- a/build.sh
+++ b/build.sh
@@ -30,44 +30,71 @@
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 set -e
 
-echo "sh param:$1,$2,$3,$4,$5,$6,$7"
-destination=".config"
-config_file=""
-tee=""
-outdir="../..$3/test_info/gen/kernel/test"
-if [ "$5" = "tee" ]; then
-    tee="_tee"
-fi
-product_name="$(basename $7)"
-source="tools/build/config/${product_name}_release.config"
-if [ "$2" = "clang" ]; then
-    if [ "$4" = "debug" ]; then
-        config_file="${product_name}_$2$tee.config"
-        source="tools/build/config/debug/$config_file"
-    else
-        config_file="${product_name}_$2_release$tee.config"
-        source="tools/build/config/$config_file"
-    fi
-elif [ "$2" = "gcc" ]; then
-    if [ "$4" = "debug" ]; then
-        config_file="${product_name}_debug_shell$tee.config"
-        source="tools/build/config/$config_file"
-    else
-        config_file="${product_name}_release$tee.config"
-        source="tools/build/config/$config_file"
-    fi
-fi
-if [ -d "./out" ]; then
-    rm -rf ./out
-fi
-if [ -f "$destination" ]; then
-    rm -rf $destination
-fi
-if [ ! -f "$source" ]; then
-    source="$7/config/sys/$config_file"
-fi
-cp $source $destination
+board_name=${1}
+ohos_build_compiler=${2}
+root_build_dir=${3}
+ohos_build_type=${4}
+tee_enable=${5}
+device_company=${6}
+product_path=${7}
+outdir=${8}
+ohos_version=${9}
+sysroot_path=${10}
+arch_cflags=${11}
 
-mkdir -p $outdir
-cp kernel_test.sources $outdir
+echo "${board_name}" "${device_company}"
+echo "sh param:" "$@"
 
+function main() {
+    destination=".config"
+    config_file=""
+    tee=""
+    if [ "${tee_enable}" = "tee" ]; then
+        tee="_tee"
+    fi
+    product_name=$(basename "${product_path}")
+    source="tools/build/config/${product_name}_release.config"
+    if [ "${ohos_build_compiler}" = "clang" ]; then
+        if [ "${ohos_build_type}" = "debug" ]; then
+            config_file="${product_name}_${ohos_build_compiler}${tee}.config"
+            source="tools/build/config/debug/${config_file}"
+        else
+            config_file="${product_name}_${ohos_build_compiler}_release${tee}.config"
+            source="tools/build/config/${config_file}"
+        fi
+    elif [ "${ohos_build_compiler}" = "gcc" ]; then
+        if [ "${ohos_build_type}" = "debug" ]; then
+            config_file="${product_name}_debug_shell${tee}.config"
+            source="tools/build/config/${config_file}"
+        else
+            config_file="${product_name}_release${tee}.config"
+            source="tools/build/config/${config_file}"
+        fi
+    fi
+    if [ -d "./out" ]; then
+        rm -rf ./out
+    fi
+    if [ -f "${destination}" ]; then
+        rm -rf ${destination}
+    fi
+    if [ ! -f "${source}" ]; then
+        source="${product_path}/config/sys/${config_file}"
+    fi
+    cp "${source}" ${destination}
+
+    test_info_outdir="../..${root_build_dir}/test_info/gen/kernel/test"
+    mkdir -p "${test_info_outdir}"
+    cp kernel_test.sources "${test_info_outdir}"
+}
+
+if [ "x" != "x${sysroot_path}" ]; then
+    export SYSROOT_PATH=${sysroot_path}
+fi
+
+if [ "x" != "x${arch_cflags}" ]; then
+    export ARCH_CFLAGS="${arch_cflags}"
+fi
+
+main && \
+make clean OUTDIR="${outdir}" PRODUCT_PATH="${product_path}" && \
+make -j rootfs VERSION="${ohos_version}" OUTDIR="${outdir}" PRODUCT_PATH="${product_path}"
diff --git a/kernel/extended/vdso/usr/Makefile b/kernel/extended/vdso/usr/Makefile
index f4bef985..33b04ebc 100644
--- a/kernel/extended/vdso/usr/Makefile
+++ b/kernel/extended/vdso/usr/Makefile
@@ -40,7 +40,7 @@ VDSO_INCLUDE := -I $(LITEOSTOPDIR)/kernel/extended/vdso/include \
 VDSO_CCFLAGS := -nostdlib -fPIC -fno-common -fno-strict-aliasing \
                 $(LITEOS_SSP) $(LITEOS_CORE_COPTS) $(WARNING_AS_ERROR) $(LITEOS_COPTS_OPTMIZE)
 ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-VDSO_CCFLAGS += $(LLVM_EXTRA_OPTS) --sysroot=$(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/
+VDSO_CCFLAGS += $(LLVM_EXTRA_OPTS) --sysroot=$(SYSROOT_PATH) $(ARCH_CFLAGS)
 endif
 
 VDSO_LDFLAGS := -shared -s -Bsymbolic -T los_vdso.ld