diff --git a/.gitignore b/.gitignore
index 23b64f81..7f3188ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,9 +17,9 @@ tags
 
 # Menuconfig temp files
 /config.h
-.config
-.config.old
+/defconfig
+/.config
+/.config.old
 
 # Build temp files
-/platform/board.ld
 /out
diff --git a/Makefile b/Makefile
index 9459f113..980d0713 100644
--- a/Makefile
+++ b/Makefile
@@ -27,35 +27,52 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-LITEOSTOPDIR := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
-export OS=$(shell uname -s)
-ifneq ($(OS), Linux)
-LITEOSTOPDIR := $(shell dirname $(subst \,/,$(LITEOSTOPDIR))/./)
-endif
-
+LITEOSTOPDIR := $(realpath $(dir $(firstword $(MAKEFILE_LIST))))
 LITEOSTHIRDPARTY := $(LITEOSTOPDIR)/../../third_party
 
 export LITEOSTOPDIR
 export LITEOSTHIRDPARTY
 
-RM = -rm -rf
-MAKE = make
-__LIBS = libs
 APPS = apps
-ROOTFSDIR = rootfsdir
 ROOTFS = rootfs
-
 LITEOS_TARGET = liteos
-LITEOS_LIBS_TARGET = libs_target
-LITEOS_PLATFORM_BASE = $(LITEOSTOPDIR)/platform
+LITEOS_LIBS_TARGET = libs
+
+# by the following eval, we would got some variables like these:
+#	ohos_root_path=/xx
+#	ohos_board=hispark_taurus
+#	ohos_kernel=liteos_a
+#	ohos_product=ipcamera_hispark_taurus
+#	ohos_product_path=/xx/vendor/hisilicon/hispark_taurus
+#	ohos_device_path=/xx/device/hisilicon/hispark_taurus/sdk_liteos
+ohos_kernel ?= liteos_a
+$(foreach line,$(shell hb env | sed 's/\[OHOS INFO\]/ohos/g;s/ /_/g;s/:_/=/g' || true),$(eval $(line)))
+
+ifneq ($(ohos_kernel),liteos_a)
+$(error The selected product ($(ohos_product)) is not a liteos_a kernel type product)
+endif
 
 export CONFIG_=LOSCFG_
+export srctree=$(LITEOSTOPDIR)
+
+SYSROOT_PATH ?= $(LITEOSTOPDIR)/../../prebuilts/lite/sysroot
+export SYSROOT_PATH
+
+LITEOS_MENUCONFIG_H ?= $(LITEOSTOPDIR)/config.h
+export LITEOS_MENUCONFIG_H
+
+CONFIG_FILE ?= $(LITEOSTOPDIR)/.config
+export CONFIG_FILE
+
 ifeq ($(PRODUCT_PATH),)
-export PRODUCT_PATH=$(shell hb env|grep "product path:"|sed 's/.*: //g')
+PRODUCT_PATH:=$(ohos_product_path)
 endif
+export PRODUCT_PATH
+
 ifeq ($(DEVICE_PATH),)
-export DEVICE_PATH=$(shell hb env|grep "device path:"|sed 's/.*: //g')
+DEVICE_PATH:=$(ohos_device_path)
 endif
+export DEVICE_PATH
 
 ifeq ($(TEE:1=y),y)
 tee = _tee
@@ -66,7 +83,8 @@ else
 CONFIG ?= $(PRODUCT_PATH)/kernel_configs/debug$(tee).config
 endif
 
-$(shell env CONFIG_=$(CONFIG_) DEVICE_PATH=$(DEVICE_PATH) olddefconfig >/dev/null)
+KCONFIG_CONFIG ?= $(CONFIG)
+export KCONFIG_CONFIG
 
 -include $(LITEOSTOPDIR)/tools/build/config.mk
 
@@ -86,41 +104,36 @@ ROOTFS_DIR = $(OUT)/rootfs
 ROOTFS_ZIP = $(OUT)/rootfs.zip
 VERSION =
 
-SYSROOT_PATH ?= $(LITEOSTOPDIR)/../../prebuilts/lite/sysroot
-export SYSROOT_PATH
+define HELP =
+-------------------------------------------------------
+Usage: make [TARGET]... [PARAMETER=VALUE]...
 
-all: $(OUT) $(BUILD) $(LITEOS_TARGET) $(APPS)
-lib: $(OUT) $(BUILD) $(LITEOS_LIBS_TARGET)
+Targets:
+    help:       display this help and exit
+    clean:      clean compiled objects
+    cleanall:   clean all build outputs
+    all:        make liteos kernel image and rootfs image (Default target)
+    rootfs:     make a original rootfs image
+    $(LITEOS_LIBS_TARGET):       compile all kernel modules (libraries)
+    $(LITEOS_TARGET):     make liteos kernel image
+    update_config:  update product kernel config (use menuconfig)
+    test:       make the testsuits_app and put it into the rootfs dir
+    test_apps:  make a rootfs img with the testsuits_app in it
+
+Parameters:
+    FSTYPE:     value should be one of (jffs2 vfat yaffs2)
+    TEE:        boolean value(1 or y for true), enable tee
+    RELEASE:    boolean value(1 or y for true), build release version
+    CONFIG:     kernel config file to be use
+-------------------------------------------------------
+endef
+export HELP
+
+all: $(LITEOS_TARGET) $(ROOTFS)
 
 help:
-	$(HIDE)echo "-------------------------------------------------------"
-	$(HIDE)echo "1.====make help:    get help infomation of make"
-	$(HIDE)echo "2.====make:         make a debug version based the .config"
-	$(HIDE)echo "3.====make debug:   make a debug version based the .config"
-	$(HIDE)echo "4.====make release: make a release version for all platform"
-	$(HIDE)echo "5.====make release PLATFORM=xxx:  make a release version only for platform xxx"
-	$(HIDE)echo "6.====make rootfsdir: make a original rootfs dir"
-	$(HIDE)echo "7.====make rootfs FSTYPE=***: make a original rootfs img"
-	$(HIDE)echo "8.====make test: make the testsuits_app and put it into the rootfs dir"
-	$(HIDE)echo "9.====make test_apps FSTYPE=***: make a rootfs img with the testsuits_app in it"
-	$(HIDE)echo "xxx should be one of (hi3516cv300 hi3516ev200 hi3556av100/cortex-a53_aarch32 hi3559av100/cortex-a53_aarch64)"
-	$(HIDE)echo "*** should be one of (jffs2)"
-	$(HIDE)echo "-------------------------------------------------------"
+	$(HIDE)echo "$$HELP"
 
-debug:
-	$(HIDE)echo "=============== make a debug version  ==============="
-	$(HIDE) $(MAKE) all
-
-release:
-ifneq ($(PLATFORM),)
-	$(HIDE)echo "=============== make a release version for platform $(PLATFORM) ==============="
-	$(HIDE)$(SCRIPTS_PATH)/mklibversion.sh $(PLATFORM)
-else
-	$(HIDE)echo "================make a release version for all platform ==============="
-	$(HIDE)$(SCRIPTS_PATH)/mklibversion.sh
-endif
-
-##### make sysroot #####
 sysroot:
 ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
 ifeq ($(wildcard $(SYSROOT_PATH)/usr/include/$(LLVM_TARGET)/),)
@@ -129,105 +142,74 @@ endif
 	$(HIDE)echo "sysroot:" $(abspath $(SYSROOT_PATH))
 endif
 
-##### make dynload #####
--include $(LITEOS_MK_PATH)/dynload.mk
-
-#-----need move when make version-----#
-##### make lib #####
-$(__LIBS): $(OUT) $(CXX_INCLUDE)
-
-$(OUT): $(LITEOS_MENUCONFIG_H)
-	$(HIDE)mkdir -p $(OUT)/lib
-	$(HIDE)$(CC) -I$(LITEOSTOPDIR)/kernel/base/include -I$(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH) \
-		-I$(LITEOS_PLATFORM_BASE)/include -imacros $< -E $(LITEOS_PLATFORM_BASE)/board.ld.S \
-		-o $(LITEOS_PLATFORM_BASE)/board.ld -P
-
-$(BUILD):
-	$(HIDE)mkdir -p $(BUILD)
-
-$(LITEOS_LIBS_TARGET): $(__LIBS) sysroot
-	$(HIDE)for dir in $(LIB_SUBDIRS); \
-		do $(MAKE) -C $$dir all || exit 1; \
-	done
-	$(HIDE)echo "=============== make lib done  ==============="
-
-##### make menuconfig #####
-KCONFIG_CMDS = $(notdir $(wildcard $(dir $(shell which menuconfig))*config))
+KCONFIG_CMDS := $(notdir $(wildcard $(dir $(shell which menuconfig))*config))
 $(KCONFIG_CMDS):
 	$(HIDE)$@ $(args)
-##### menuconfig end #######
 
-$(LITEOS_MENUCONFIG_H): .config
-	$(HIDE)genconfig
-
-$(LITEOS_TARGET): $(__LIBS) sysroot
-	$(HIDE)touch $(LOSCFG_ENTRY_SRC)
-
-	$(HIDE)for dir in $(LITEOS_SUBDIRS); \
-	do $(MAKE) -C $$dir all || exit 1; \
-	done
-
-	$(LD) $(LITEOS_LDFLAGS) $(LITEOS_TABLES_LDFLAGS) $(LITEOS_DYNLDFLAGS) -Map=$(OUT)/$@.map -o $(OUT)/$@ --start-group $(LITEOS_LIBDEP) --end-group
-#	$(SIZE) -t --common $(OUT)/lib/*.a >$(OUT)/$@.objsize
-	$(OBJCOPY) -O binary $(OUT)/$@ $(LITEOS_TARGET_DIR)/$@.bin
-	$(OBJDUMP) -t $(OUT)/$@ |sort >$(OUT)/$@.sym.sorted
-	$(OBJDUMP) -d $(OUT)/$@ >$(OUT)/$@.asm
-#	$(NM) -S --size-sort $(OUT)/$@ >$(OUT)/$@.size
-
-$(APPS): $(LITEOS_TARGET) sysroot
-	$(HIDE)$(MAKE) -C apps all
-
-prepare:
-	$(HIDE)mkdir -p $(OUT)/musl
-ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-	$(HIDE)cp -fp $$($(CC) --target=$(LLVM_TARGET) --sysroot=$(SYSROOT_PATH) $(LITEOS_CFLAGS) -print-file-name=libc.so) $(OUT)/musl
-	$(HIDE)cp -fp $$($(GPP) --target=$(LLVM_TARGET) --sysroot=$(SYSROOT_PATH) $(LITEOS_CXXFLAGS) -print-file-name=libc++.so) $(OUT)/musl
-else
-	$(HIDE)cp -fp $(LITEOS_COMPILER_PATH)/target/usr/lib/libc.so $(OUT)/musl
-	$(HIDE)cp -fp $(LITEOS_COMPILER_PATH)/arm-linux-musleabi/lib/libstdc++.so.6 $(OUT)/musl
-	$(HIDE)cp -fp $(LITEOS_COMPILER_PATH)/arm-linux-musleabi/lib/libgcc_s.so.1 $(OUT)/musl
-	$(STRIP) $(OUT)/musl/*
-endif
-
-$(ROOTFSDIR): prepare $(APPS)
-	$(HIDE)$(MAKE) clean -C apps
-	$(HIDE)$(LITEOSTOPDIR)/tools/scripts/make_rootfs/rootfsdir.sh $(OUT) $(ROOTFS_DIR) $(LITEOS_TARGET_DIR)
-ifneq ($(VERSION),)
-	$(HIDE)$(LITEOSTOPDIR)/tools/scripts/make_rootfs/releaseinfo.sh "$(VERSION)" $(ROOTFS_DIR) $(LITEOS_TARGET_DIR)
-endif
-
-$(ROOTFS): $(ROOTFSDIR)
-	$(HIDE)$(LITEOSTOPDIR)/tools/scripts/make_rootfs/rootfsimg.sh $(ROOTFS_DIR) $(FSTYPE)
-	$(HIDE)cd $(ROOTFS_DIR)/.. && zip -r $(ROOTFS_ZIP) $(ROOTFS)
-
-clean:
-	$(HIDE)for dir in $(LITEOS_SUBDIRS); \
-		do $(MAKE) -C $$dir clean|| exit 1; \
-	done
-	$(HIDE)$(MAKE) -C apps clean
-	$(HIDE)$(RM) $(__OBJS) $(LITEOS_TARGET) $(BUILD) $(LITEOS_MENUCONFIG_H) *.bak *~
-	$(HIDE)$(RM) include/config include/generated
-	$(HIDE)$(MAKE) cleanrootfs
-	$(HIDE)echo "clean $(LITEOS_PLATFORM) finish"
-
-cleanall: clean
-	$(HIDE)$(RM) $(LITEOSTOPDIR)/out $(LITEOS_PLATFORM_BASE)/board.ld
-	$(HIDE)echo "clean all done"
-
-cleanrootfs:
-	$(HIDE)$(RM) $(OUT)/rootfs
-	$(HIDE)$(RM) $(OUT)/rootfs.zip
-	$(HIDE)$(RM) $(OUT)/rootfs.img
-
-update_all_config:
-	$(HIDE)shopt -s globstar && for f in tools/build/config/**/*.config ; \
-		do \
-			echo updating $$f; \
-			test -f $$f && cp $$f .config && olddefconfig && savedefconfig --out $$f; \
-		done
+$(LITEOS_MENUCONFIG_H) $(CONFIG_FILE): $(KCONFIG_CONFIG)
+	$(HIDE)genconfig --config-out $(CONFIG_FILE) --header-path $(LITEOS_MENUCONFIG_H) $(args)
 
 update_config:
 	$(HIDE)test -f "$(CONFIG)" && cp -v "$(CONFIG)" .config && menuconfig && savedefconfig --out "$(CONFIG)"
 
-.PHONY: all lib clean cleanall $(LITEOS_TARGET) debug release help update_all_config update_config
-.PHONY: prepare sysroot cleanrootfs $(ROOTFS) $(ROOTFSDIR) $(APPS) $(KCONFIG_CMDS) $(LITEOS_LIBS_TARGET) $(__LIBS) $(OUT)
+prepare: $(LITEOS_MENUCONFIG_H)
+	$(HIDE)mkdir -p $(OUT)/musl $(OUT)/lib $(BUILD)
+
+$(LITEOS_LIBS_TARGET): prepare
+	$(HIDE)touch $(LOSCFG_ENTRY_SRC)
+	$(HIDE)for dir in $(LITEOS_SUBDIRS); do $(MAKE) -C $$dir all || exit 1; done
+
+$(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET)
+$(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET).map
+#$(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET).objsize
+$(LITEOS_TARGET): $(LITEOS_TARGET_DIR)/$(LITEOS_TARGET).bin
+$(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET).sym.sorted
+$(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET).asm
+#$(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET).size
+
+$(OUT)/$(LITEOS_TARGET): $(LITEOS_LIBS_TARGET)
+	$(LD) $(LITEOS_LDFLAGS) $(LITEOS_TABLES_LDFLAGS) -Map=$@.map -o $@ --start-group $(LITEOS_LIBDEP) --end-group
+$(OUT)/$(LITEOS_TARGET).map: $(OUT)/$(LITEOS_TARGET)
+$(OUT)/$(LITEOS_TARGET).objsize: $(LITEOS_LIBS_TARGET)
+	$(SIZE) -t --common $(OUT)/lib/*.a >$@
+$(LITEOS_TARGET_DIR)/$(LITEOS_TARGET).bin: $(OUT)/$(LITEOS_TARGET)
+	$(OBJCOPY) -O binary $< $@
+$(OUT)/$(LITEOS_TARGET).sym.sorted: $(OUT)/$(LITEOS_TARGET)
+	$(OBJDUMP) -t $< |sort >$@
+$(OUT)/$(LITEOS_TARGET).asm: $(OUT)/$(LITEOS_TARGET)
+	$(OBJDUMP) -d $< >$@
+$(OUT)/$(LITEOS_TARGET).size: $(OUT)/$(LITEOS_TARGET)
+	$(NM) -S --size-sort $< >$@
+
+$(APPS): prepare
+	$(HIDE)$(MAKE) -C apps all
+
+$(ROOTFS): $(APPS)
+ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
+	$(HIDE)cp -fp $$($(CC) --target=$(LLVM_TARGET) --sysroot=$(SYSROOT_PATH) $(LITEOS_CFLAGS) -print-file-name=libc.so) $(OUT)/musl
+	$(HIDE)cp -fp $$($(GPP) --target=$(LLVM_TARGET) --sysroot=$(SYSROOT_PATH) $(LITEOS_CXXFLAGS) -print-file-name=libc++.so) $(OUT)/musl
+else
+	$(HIDE)cp -fp $$($(CC) $(LITEOS_CFLAGS) -print-file-name=libc.so) $(OUT)/musl
+	$(HIDE)cp -fp $$($(CC) $(LITEOS_CFLAGS) -print-file-name=libgcc_s.so.1) $(OUT)/musl
+	$(HIDE)cp -fp $$($(GPP) $(LITEOS_CXXFLAGS) -print-file-name=libstdc++.so.6) $(OUT)/musl
+endif
+	$(STRIP) $(OUT)/musl/*
+	$(HIDE)$(LITEOSTOPDIR)/tools/scripts/make_rootfs/rootfsdir.sh $(OUT) $(ROOTFS_DIR) $(LITEOS_TARGET_DIR)
+ifneq ($(VERSION),)
+	$(HIDE)$(LITEOSTOPDIR)/tools/scripts/make_rootfs/releaseinfo.sh "$(VERSION)" $(ROOTFS_DIR) $(LITEOS_TARGET_DIR)
+endif
+	$(HIDE)$(LITEOSTOPDIR)/tools/scripts/make_rootfs/rootfsimg.sh $(ROOTFS_DIR) $(FSTYPE)
+	$(HIDE)cd $(ROOTFS_DIR)/.. && zip -r $(ROOTFS_ZIP) $(ROOTFS)
+
+clean:
+	$(HIDE)for dir in $(LITEOS_SUBDIRS); do $(MAKE) -C $$dir clean || exit 1; done
+	$(HIDE)$(MAKE) -C apps clean
+	$(HIDE)$(RM) $(LITEOS_MENUCONFIG_H) $(CONFIG_FILE)
+	$(HIDE)echo "clean $(LOSCFG_PLATFORM) finish"
+
+cleanall: clean
+	$(HIDE)$(RM) $(LITEOSTOPDIR)/out
+	$(HIDE)echo "clean all done"
+
+.PHONY: all clean cleanall prepare sysroot help update_config
+.PHONY: $(LITEOS_TARGET) $(ROOTFS) $(APPS) $(KCONFIG_CMDS) $(LITEOS_LIBS_TARGET)
diff --git a/apps/Makefile b/apps/Makefile
index e2254341..94fcbb09 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -27,7 +27,7 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-LITEOSTOPDIR = $(shell pwd)/../
+LITEOSTOPDIR := $(shell pwd)/../
 
 include $(LITEOSTOPDIR)/.config
 include ./config.mk
diff --git a/arch/arm/arm.mk b/arch/arm/arm.mk
index ddfbf4cf..2236d916 100644
--- a/arch/arm/arm.mk
+++ b/arch/arm/arm.mk
@@ -76,7 +76,6 @@ ARCH_INCLUDE            := -I $(LITEOSTOPDIR)/arch/arm/include \
                            -I $(LITEOSTOPDIR)/arch/arm/$(LITEOS_ARCH_ARM)/src/include
 
 LITEOS_PLATFORM_INCLUDE += $(ARCH_INCLUDE)
-LITEOS_CXXINCLUDE       += $(ARCH_INCLUDE)
 
 # expose FPU info to assembly code
 ifeq ($(LOSCFG_ARCH_FPU_DISABLE), y)
diff --git a/build.sh b/build.sh
index 79c21b74..5afaf6f2 100755
--- a/build.sh
+++ b/build.sh
@@ -46,8 +46,8 @@ device_path=${12}
 echo "${board_name}" "${device_company}"
 echo "sh param:" "$@"
 
+destination="defconfig"
 function main() {
-    destination=".config"
     tee=""
     if [ "${tee_enable}" = "true" ]; then
         tee="_tee"
@@ -85,10 +85,12 @@ if [ "x" != "x${arch_cflags}" ]; then
     export ARCH_CFLAGS="${arch_cflags}"
 fi
 
-export OUTDIR="${outdir}"
 export PRODUCT_PATH="${product_path}"
 export DEVICE_PATH="${device_path}"
 
+OUTDIR="${outdir}"
+CONFIG="$(realpath ${destination})"
+
 main && \
-make clean && \
-make -j rootfs VERSION="${ohos_version}"
+make clean CONFIG="$CONFIG" OUTDIR="$OUTDIR" && \
+make -j all VERSION="${ohos_version}" CONFIG="$CONFIG" OUTDIR="$OUTDIR"
diff --git a/config.mk b/config.mk
deleted file mode 100644
index 50fd8877..00000000
--- a/config.mk
+++ /dev/null
@@ -1,61 +0,0 @@
-# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
-# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without modification,
-# are permitted provided that the following conditions are met:
-#
-# 1. Redistributions of source code must retain the above copyright notice, this list of
-#    conditions and the following disclaimer.
-#
-# 2. Redistributions in binary form must reproduce the above copyright notice, this list
-#    of conditions and the following disclaimer in the documentation and/or other materials
-#    provided with the distribution.
-#
-# 3. Neither the name of the copyright holder nor the names of its contributors may be used
-#    to endorse or promote products derived from this software without specific prior written
-#    permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-############### this is a makefile that you can config it ###############
--include $(LITEOSTOPDIR)/tools/build/mk/los_config.mk
-
-TOP_LD_PATH      = $(LITEOSTOPDIR)
-SCRIPTS_PATH     = $(LITEOS_SCRIPTPATH)
-LITEOS_MK_PATH   = $(MK_PATH)
-LITEOS_SUBDIRS   = $(LIB_SUBDIRS)
-LIB_BIGODIR      = $(LITEOS_LIB_BIGODIR)
-
-##### liteos tables -u ldflags #####
--include $(LITEOS_MK_PATH)/liteos_tables_ldflags.mk
-
-
-LITEOS_COPTS   := $(LITEOS_COPTS_DEBUG) $(LITEOS_COPTS_BASE)  \
-                  $(LITEOS_COPTS_EXTRA) $(LITEOS_CORE_COPTS)
-LITEOS_CXXOPTS  := $(LITEOS_CXXOPTS_BASE)
-LITEOS_INCLUDE  := $(LITEOS_KERNEL_INCLUDE)  $(LITEOS_EXTKERNEL_INCLUDE) \
-                   $(LITEOS_COMPAT_INCLUDE)  $(LITEOS_FS_INCLUDE) \
-                   $(LITEOS_NET_INCLUDE)     $(LITEOS_LIB_INCLUDE) \
-                   $(LITEOS_DRIVERS_INCLUDE) $(LOSCFG_TOOLS_DEBUG_INCLUDE) \
-                   $(LITEOS_PLATFORM_INCLUDE) $(LITEOS_DFX_INCLUDE) \
-                   $(LITEOS_SECURITY_INCLUDE)
-LITEOS_LIBDEP   := $(LITEOS_BASELIB)
-LITEOS_ASFLAGS  := $(LITEOS_ASOPTS)      $(LITEOS_INCLUDE)
-LITEOS_CFLAGS   := $(LITEOS_COPTS)       $(LITEOS_CMACRO) \
-                   $(LITEOS_CMACRO_TEST) $(LITEOS_IMAGE_MACRO) \
-                   $(LITEOS_INCLUDE)
-LITEOS_CXXFLAGS := $(LITEOS_CXXOPTS)     $(LITEOS_CXXMACRO) \
-                   $(LITEOS_CMACRO)      $(LITEOS_CXXINCLUDE)
-LITEOS_LDFLAGS  := $(LITEOS_LD_OPTS)     $(LITEOS_LD_PATH) \
-                   $(LITEOS_LD_SCRIPT)
-
diff --git a/config.mk b/config.mk
new file mode 120000
index 00000000..9dcbbc33
--- /dev/null
+++ b/config.mk
@@ -0,0 +1 @@
+tools/build/config.mk
\ No newline at end of file
diff --git a/kernel/base/Makefile b/kernel/base/Makefile
index 9381318f..d20fc229 100644
--- a/kernel/base/Makefile
+++ b/kernel/base/Makefile
@@ -48,4 +48,4 @@ LOCAL_INCLUDE := \
 
 LOCAL_FLAGS := $(LITEOS_CFLAGS_INTERWORK) $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
 
-include $(HDF_DRIVER)
+include $(MODULE)
diff --git a/kernel/user/Makefile b/kernel/user/Makefile
index 6dc3fc56..00ddca85 100644
--- a/kernel/user/Makefile
+++ b/kernel/user/Makefile
@@ -28,10 +28,8 @@
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 include $(LITEOSTOPDIR)/config.mk
-OBJOUT := $(OUT)/obj/kernel/user
 
 MODULE_NAME := userinit
-LIBA := $(OUT)/lib/lib$(MODULE_NAME).O
 
 LOCAL_INCLUDE := \
     -I $(LITEOSTOPDIR)/kernel/base/include\
@@ -49,27 +47,19 @@ LOCAL_INCLUDE := \
 LOCAL_SRCS := $(wildcard src/*.c) \
               $(wildcard src/*.S)
 
-LOCAL_CSRCS := $(filter %.c,$(LOCAL_SRCS))
-LOCAL_ASMSRCS := $(filter %.S,$(LOCAL_SRCS))
-
-LOCAL_COBJS := $(patsubst %.c,$(OBJOUT)/%.o,$(LOCAL_CSRCS))
-LOCAL_ASMOBJS := $(patsubst %.S,$(OBJOUT)/%.o,$(LOCAL_ASMSRCS))
-LOCAL_OBJS := $(LOCAL_COBJS) $(LOCAL_ASMOBJS)
-
 LOCAL_FLAGS :=  $(LOCAL_INCLUDE)
 
-all : $(LIBA)
+include $(MODULE)
 
-$(LOCAL_COBJS): $(OBJOUT)/%.o: %.c
-	$(HIDE)$(OBJ_MKDIR)
-	$(HIDE)$(CC) $(LITEOS_CFLAGS) $(LOCAL_FLAGS) $(LOCAL_CFLAGS) -c $< -o $@
+LIBO := $(OUT)/lib/lib$(MODULE_NAME).O
 
-$(LOCAL_ASMOBJS): $(OBJOUT)/%.o: %.S
-	$(HIDE)$(OBJ_MKDIR)
-	$(HIDE)$(CC) $(LITEOS_CFLAGS) $(LOCAL_FLAGS) $(LOCAL_ASFLAGS) -c $< -o $@
+$(LIBO): $(LIBA)
+	$(HIDE) $(LD) -r -o $@ --whole-archive $< --no-whole-archive
+	$(HIDE) $(RM) $<
 
-$(LIBA): $(LOCAL_OBJS)
-	$(HIDE) $(LD) -r -o $@ $^
+clean2:
+	$(HIDE) $(RM) $(LIBO)
 
-clean:
-	$(HIDE) rm -rf $(LOCAL_OBJS) $(LIBA)
+all: $(LIBO)
+clean: clean2
+.PHONY: clean2
diff --git a/platform/Kconfig b/platform/Kconfig
index 5f6e78c5..afe9171d 100644
--- a/platform/Kconfig
+++ b/platform/Kconfig
@@ -5,7 +5,7 @@ config PLATFORM
     default "virt"            if PLATFORM_QEMU_ARM_VIRT_CA7
 
 config PRODUCT_NAME
-    string "unknown"
+    string "product name"
     default "ipcamera_hi3516dv300_liteos" if PRODUCT_IPCAMERA_HI3516DV300_LITEOS
     default "ipcamera_hi3518ev300_liteos" if PRODUCT_IPCAMERA_HI3518EV300_LITEOS
     default "hispark_taurus" if PRODUCT_HISPARK_TAURUS
@@ -13,7 +13,7 @@ config PRODUCT_NAME
     default "arm_virt" if PRODUCT_QEMU_ARM
 
 config DEVICE_COMPANY
-    string "unknown"
+    string "vendor name"
     default "hisilicon" if PLATFORM_HI3516DV300
     default "hisilicon" if PLATFORM_HI3518EV300
     default "qemu" if PLATFORM_QEMU_ARM_VIRT_CA7
@@ -22,11 +22,11 @@ choice
     prompt "Chip"
     default PLATFORM_HI3516DV300
     help
-      IPC has several chips:
-      hi3516dv300
-      hi3518ev300
+      IP Camera has several chips:
+       - hi3516dv300
+       - hi3518ev300
       Qemu ARM Virt variants (based on different CPU types):
-      qemu_arm_virt_ca7
+       - qemu_arm_virt_ca7
 
 config PLATFORM_HI3516DV300
     bool "hi3516dv300"
diff --git a/platform/Makefile b/platform/Makefile
index 94f9dd24..57951cb2 100644
--- a/platform/Makefile
+++ b/platform/Makefile
@@ -61,10 +61,22 @@ LOCAL_INCLUDE += -I $(LITEOSTOPDIR)/kernel/extended/vdso/include
 endif
 
 ALL_ASSRCS := $(wildcard *.S)
-ASSRCS := $(subst board.ld.S,,$(ALL_ASSRCS))
+ASSRCS := $(filter-out board.ld.S,$(ALL_ASSRCS))
 
 LOCAL_SRCS += $(ASSRCS)
 
 LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
 
+BOARD_LD = $(OUT)/lib/board.ld
+$(BOARD_LD): board.ld.S $(LITEOS_MENUCONFIG_H)
+	$(HIDE)$(CC) -I$(LITEOSTOPDIR)/kernel/base/include -I$(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH) -I. \
+		-imacros $(LITEOS_MENUCONFIG_H) -P -E $< -o $@
+
+.PHONY: rm_board_ld
+rm_board_ld:
+	$(HIDE)$(RM) $(BOARD_LD)
+
+all: $(BOARD_LD)
+clean: rm_board_ld
+
 include $(MODULE)
diff --git a/platform/bsp.mk b/platform/bsp.mk
index 0d1fe022..9d13ac32 100644
--- a/platform/bsp.mk
+++ b/platform/bsp.mk
@@ -43,8 +43,6 @@ USB_SRC     :=
 
 LITEOS_BASELIB       += -lbsp
 
-LITEOS_PLATFORM      := $(subst $\",,$(LOSCFG_PLATFORM))
-
 PLATFORM_BSP_BASE := $(LITEOSTOPDIR)/platform
 
 PLATFORM_INCLUDE := -I $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH) \
@@ -55,10 +53,5 @@ PLATFORM_INCLUDE := -I $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH) \
                     -I $(PLATFORM_BSP_BASE)/hw/include \
                     -I $(PLATFORM_BSP_BASE)/include
 
-#
-#-include $(LITEOSTOPDIR)/platform/bsp/board/$(LITEOS_PLATFORM)/board.mk
-#
-
 LIB_SUBDIRS             += $(PLATFORM_BSP_BASE)
 LITEOS_PLATFORM_INCLUDE += $(PLATFORM_INCLUDE)
-LITEOS_CXXINCLUDE       += $(PLATFORM_INCLUDE)
diff --git a/tools/build/config.mk b/tools/build/config.mk
index 6b468487..eb4e6f0e 100644
--- a/tools/build/config.mk
+++ b/tools/build/config.mk
@@ -34,7 +34,6 @@ TOP_LD_PATH      = $(LITEOSTOPDIR)
 SCRIPTS_PATH     = $(LITEOS_SCRIPTPATH)
 LITEOS_MK_PATH   = $(MK_PATH)
 LITEOS_SUBDIRS   = $(LIB_SUBDIRS)
-LIB_BIGODIR      = $(LITEOS_LIB_BIGODIR)
 
 ##### liteos tables -u ldflags #####
 -include $(LITEOS_MK_PATH)/liteos_tables_ldflags.mk
@@ -47,7 +46,8 @@ LITEOS_INCLUDE  := $(LITEOS_KERNEL_INCLUDE)  $(LITEOS_EXTKERNEL_INCLUDE) \
                    $(LITEOS_COMPAT_INCLUDE)  $(LITEOS_FS_INCLUDE) \
                    $(LITEOS_NET_INCLUDE)     $(LITEOS_LIB_INCLUDE) \
                    $(LITEOS_DRIVERS_INCLUDE) $(LOSCFG_TOOLS_DEBUG_INCLUDE) \
-                   $(LITEOS_PLATFORM_INCLUDE)
+                   $(LITEOS_PLATFORM_INCLUDE) $(LITEOS_DFX_INCLUDE) \
+                   $(LITEOS_SECURITY_INCLUDE)
 LITEOS_LIBDEP   := $(LITEOS_BASELIB)
 LITEOS_ASFLAGS  := $(LITEOS_ASOPTS)      $(LITEOS_INCLUDE)
 LITEOS_CFLAGS   := $(LITEOS_COPTS)       $(LITEOS_CMACRO) \
diff --git a/tools/build/mk/los_config.mk b/tools/build/mk/los_config.mk
index 2d273619..9ea202d9 100644
--- a/tools/build/mk/los_config.mk
+++ b/tools/build/mk/los_config.mk
@@ -54,7 +54,7 @@ OBJ_MKDIR = if [ ! -d $(dir $@) ]; then mkdir -p $(dir $@); fi
 RM = -rm -rf
 ECHO = echo
 ifeq ($(OS),)
-OS = $(shell uname -s)
+OS := $(shell uname -s)
 export OS
 endif
 COMPILE_NAME := $(patsubst %-,%,$(CROSS_COMPILE))
@@ -98,21 +98,15 @@ LITEOS_CXXFLAGS :=
 LITEOS_BASELIB :=
 LITEOS_LIBDEP :=
 ## directory ##
-LIB_BIGODIR :=
 LIB_SUBDIRS :=
-##compiler##
-LITEOS_COMPILER_CXX_PATH :=
-LITEOS_COMPILER_CXXLIB_PATH :=
-LITEOS_COMPILER_GCCLIB_PATH  :=
-LITEOS_COMPILER_GCC_INCLUDE  :=
-LITEOS_DRIVERS_BASE_PATH :=
 
 ## variable define ##
 ifeq ($(LITEOSTHIRDPARTY),)
 LITEOSTHIRDPARTY := $(LITEOSTOPDIR)/../../third_party
 endif
+LITEOS_PLATFORM := $(LOSCFG_PLATFORM:"%"=%)
 ifeq ($(OUTDIR),)
-OUT  = $(LITEOSTOPDIR)/out/$(LITEOS_PLATFORM)
+OUT = $(LITEOSTOPDIR)/out/$(LITEOS_PLATFORM)
 LITEOS_TARGET_DIR = $(OUT)
 KERNEL_COMPILE_ONLY = y
 else
@@ -125,27 +119,12 @@ MK_PATH  = $(LITEOSTOPDIR)/tools/build/mk
 CXX_PATH  = $(LITEOSTOPDIR)/lib/cxxstl
 JFFS_PATH  = $(LITEOSTOPDIR)/fs/jffs2
 LITEOS_SCRIPTPATH ?= $(LITEOSTOPDIR)/tools/scripts
-LITEOS_LIB_BIGODIR  = $(OUT)/lib/obj
 LITEOS_MENUCONFIG_H ?= $(LITEOSTOPDIR)/config.h
 LOSCFG_ENTRY_SRC    = $(LITEOSTOPDIR)/platform/los_config.c
 
 ### include variable
 MODULE = $(MK_PATH)/module.mk
-ifeq ($(LOSCFG_COMPILER_HIMIX_32), y)
-LITEOS_CMACRO      += -D__COMPILER_HUAWEILITEOS__
-else ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-LITEOS_CMACRO      += -D__COMPILER_HUAWEILITEOS__
-else ifeq ($(LOSCFG_COMPILER_HCC_64), y)
-LITEOS_CMACRO      += -D__COMPILER_HUAWEILITEOS__
-endif
 LITEOS_CMACRO      += -D__LITEOS__ -DSECUREC_IN_KERNEL=0
-ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-LITEOS_BASELIB     += -lclang_rt.builtins
-LITEOS_BASELIB     += -lunwind --no-dependent-libraries
-else
-LITEOS_BASELIB     += -lgcc
-LITEOS_BASELIB     += -lgcc_eh
-endif
 AS_OBJS_LIBC_FLAGS  = -D__ASSEMBLY__
 
 ifeq ($(LOSCFG_QUICK_START), y)
@@ -231,14 +210,15 @@ endif
 
 #################################### Lib Option Begin ###############################
 ifeq ($(LOSCFG_LIB_LIBC), y)
-    LIB_SUBDIRS        += lib/libc
-    LIB_SUBDIRS        += lib/libsec
-
-    LITEOS_BASELIB  += -lc -lsec
+    LIB_SUBDIRS           += lib/libc
+    LITEOS_BASELIB        += -lc
     LITEOS_LIBC_INCLUDE   += \
-        $(LITEOS_LIBSCREW_INCLUDE) \
         -I $(LITEOSTOPDIR)/lib/libc/include \
         -I $(LITEOSTHIRDPARTY)/musl/porting/liteos_a/kernel/include \
+
+    LIB_SUBDIRS           += lib/libsec
+    LITEOS_BASELIB        += -lsec
+    LITEOS_LIBC_INCLUDE   += \
         -I $(LITEOSTHIRDPARTY)/bounds_checking_function/include
 endif
 
@@ -247,13 +227,7 @@ endif
     LITEOS_LIBSCREW_INCLUDE += -I $(LITEOSTOPDIR)/lib/libscrew/include
 
 ifeq ($(LOSCFG_KERNEL_CPPSUPPORT), y)
-ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-    LITEOS_BASELIB += -lc++ -lc++abi
     LITEOS_BASELIB += -lcppsupport
-else
-    LITEOS_BASELIB += -lsupc++
-    LITEOS_BASELIB += -lcppsupport -lstdc++
-endif
     LIB_SUBDIRS       += kernel/extended/cppsupport
     LITEOS_CPPSUPPORT_INCLUDE   += -I $(LITEOSTOPDIR)/kernel/extended/cppsupport
 endif
@@ -551,10 +525,6 @@ OBJDUMP = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)objdump
 SIZE = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)size
 NM = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)nm
 STRIP = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)strip
-
-VERSION_NUM := v1
-LITEOS_COMPILER_CXX_PATH = $(LITEOS_COMPILER_PATH)/include
-
 LLVM_TARGET := arm-liteos
 LLVM_EXTRA_OPTS := -target $(LLVM_TARGET) -fms-extensions -Wno-address-of-packed-member
 LLVM_EXTRA_LD_OPTS := -fuse-ld=lld --rtlib=compiler-rt
@@ -573,55 +543,8 @@ OBJDUMP = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)objdump
 SIZE = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)size
 NM = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)nm
 STRIP = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)strip
-
-ifeq ($(VERSION_NUM),)
-VERSION_NUM := $(shell $(CC) -dumpversion)
-export VERSION_NUM
 endif
 
-LITEOS_COMPILER_CXX_PATH = $(LITEOS_COMPILER_PATH)/$(COMPILE_NAME)/include
-endif
-
-ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-LITEOS_COMPILER_CXXLIB_PATH = $(LITEOS_COMPILER_PATH)/lib/$(LLVM_TARGET)/c++/a7_softfp_neon-vfpv4
-LITEOS_COMPILER_GCCLIB_PATH = $(LITEOS_COMPILER_PATH)/lib/clang/current/lib/$(LLVM_TARGET)/a7_softfp_neon-vfpv4
-LITEOS_COMPILER_GCC_INCLUDE = -I $(LITEOS_COMPILER_PATH)/lib/clang/current/include
-else ifeq ($(LOSCFG_COMPILER_HIMIX_32), y)
-LITEOS_COMPILER_CXXLIB_PATH = $(LITEOS_COMPILER_PATH)/$(COMPILE_NAME)/lib
-LITEOS_COMPILER_GCCLIB_PATH = $(LITEOS_COMPILER_PATH)/lib/gcc/$(COMPILE_NAME)/$(VERSION_NUM)
-LITEOS_COMPILER_GCC_INCLUDE = -I $(LITEOS_COMPILER_PATH)/lib/gcc/arm-linux-ohoseabi/$(VERSION_NUM)/include
-else ifeq ($(LOSCFG_COMPILER_HCC_64), y)
-LITEOS_COMPILER_CXXLIB_PATH = $(LITEOS_COMPILER_PATH)/$(COMPILE_NAME)/lib64
-LITEOS_COMPILER_GCCLIB_PATH = $(LITEOS_COMPILER_PATH)/lib64/gcc/$(COMPILE_NAME)/$(VERSION_NUM)
-LITEOS_COMPILER_GCC_INCLUDE = -I $(LITEOS_COMPILER_PATH)/lib64/gcc/aarch64-linux-gnu/$(VERSION_NUM)/include
-endif
-
-LITEOS_CXXINCLUDE += \
-    -I $(LITEOS_COMPILER_CXX_PATH)/c++/$(VERSION_NUM) \
-    -I $(LITEOS_COMPILER_CXX_PATH)/c++/$(VERSION_NUM)/ext \
-    -I $(LITEOS_COMPILER_CXX_PATH)/c++/$(VERSION_NUM)/backward \
-    -I $(LITEOSTOPDIR)/compat/posix/include \
-    -I $(LITEOSTOPDIR)/fs/include \
-    -I $(LITEOSTOPDIR)/kernel/include \
-    $(LITEOS_LIBC_INCLUDE)
-
-ifneq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-LITEOS_CXXINCLUDE +=  -I $(LITEOS_COMPILER_CXX_PATH)/c++/$(VERSION_NUM)/backward
-endif
-
-ifeq ($(LOSCFG_COMPILER_HIMIX_32), y)
-    LITEOS_CXXINCLUDE += \
-        -I $(LITEOS_COMPILER_CXX_PATH)/c++/$(VERSION_NUM)/arm-linux-ohoseabi
-    LITEOS_CXXMACRO   += -DLOSCFG_KERNEL_CPP_EXCEPTIONS_SUPPORT
-    LITEOS_CMACRO     += -DLOSCFG_KERNEL_CPP_EXCEPTIONS_SUPPORT
-else ifeq ($(LOSCFG_COMPILER_HCC_64), y)
-    LITEOS_CXXINCLUDE += \
-        -I $(LITEOS_COMPILER_CXX_PATH)/c++/$(VERSION_NUM)/aarch64-linux-gnu
-    LITEOS_CXXMACRO   += -DLOSCFG_KERNEL_CPP_EXCEPTIONS_SUPPORT
-    LITEOS_CMACRO     += -DLOSCFG_KERNEL_CPP_EXCEPTIONS_SUPPORT
-endif
-
-LITEOS_CXXINCLUDE +=  $(LITEOS_COMPILER_GCC_INCLUDE)
 FP = -fno-omit-frame-pointer
 LITEOS_CXXOPTS_BASE  += -std=c++11 -nostdlib -nostdinc -nostdinc++ -fexceptions -fpermissive -fno-use-cxa-atexit \
                         -fno-builtin -frtti -fno-pic -Winvalid-pch $(WARNING_AS_ERROR) $(LLVM_EXTRA_OPTS) $(FP)
@@ -638,9 +561,8 @@ LITEOS_FS_INCLUDE          := $(LITEOS_VFS_INCLUDE)        $(LITEOS_FAT_CACHE_IN
                               $(LITEOS_PROC_INCLUDE)       $(LITEOS_FAT_VIRPART_INCLUDE) \
                               $(LITEOS_FAT_INCLUDE)
 LITEOS_NET_INCLUDE         := $(LITEOS_LWIP_SACK_INCLUDE)
-LITEOS_LIB_INCLUDE       := $(LITEOS_LIBC_INCLUDE)       $(LITEOS_LIBM_INCLUDE) \
-                              $(LITEOS_ZLIB_INCLUDE)       $(LITEOS_COMPILER_GCC_INCLUDE) \
-                              $(LITEOS_LIBSCREW_INCLUDE)
+LITEOS_LIB_INCLUDE         := $(LITEOS_LIBC_INCLUDE)       $(LITEOS_LIBM_INCLUDE) \
+                              $(LITEOS_ZLIB_INCLUDE)       $(LITEOS_LIBSCREW_INCLUDE)
 LITEOS_DRIVERS_INCLUDE     := $(LITEOS_CELLWISE_INCLUDE)   $(LITEOS_GPIO_INCLUDE) \
                               $(LITEOS_HIDMAC_INCLUDE)     $(LITEOS_HIETH_SF_INCLUDE) \
                               $(LITEOS_HIGMAC_INCLUDE)     $(LITEOS_I2C_INCLUDE) \
@@ -692,8 +614,7 @@ LITEOS_LD_OPTS += -nostartfiles
 endif
 LITEOS_LD_OPTS += -static --gc-sections
 LITEOS_LD_OPTS += $(LITEOS_DYNLOADOPTS)
-LITEOS_LD_PATH += -L$(LITEOS_SCRIPTPATH)/ld -L$(LITEOSTOPDIR)/platform -L$(OUT)/lib -L$(LITEOS_LIB_BIGODIR) -L$(LITEOSTOPDIR)/tools/build
-LITEOS_LD_PATH += -L$(LITEOS_COMPILER_GCCLIB_PATH) -L$(LITEOS_COMPILER_CXXLIB_PATH)
+LITEOS_LD_PATH += -L$(OUT)/lib
 ifeq ($(LOSCFG_VENDOR) ,y)
 LITEOS_LD_PATH +=  -L$(OUT)/lib/rdk -L$(OUT)/lib/sdk \
                    -L$(OUT)/lib/main_server
@@ -705,15 +626,24 @@ else
 LITEOS_LD_SCRIPT := -T$(LITEOSTOPDIR)/tools/build/liteos.ld
 endif
 
+##compiler##
+ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
+_CC = $(CC) $(LLVM_EXTRA_OPTS) $(LLVM_EXTRA_LD_OPTS) $(LITEOS_CORE_COPTS)
+LITEOS_BASELIB     += $(shell $(_CC) "-print-file-name=libunwind.a") --no-dependent-libraries
+else
+_CC = $(CC) $(LITEOS_CORE_COPTS)
+LITEOS_BASELIB     += $(shell $(_CC) "-print-file-name=libgcc_eh.a")
+endif
+LITEOS_BASELIB     += $(shell $(_CC) "-print-libgcc-file-name")
+LITEOS_LIB_INCLUDE += -isystem $(shell $(_CC) "-print-file-name=include")
+
 # temporary
 LITEOS_PLATFORM_INCLUDE += \
         -I $(LITEOSTOPDIR)/kernel/base/include \
         -I $(LITEOSTOPDIR)/kernel/extended/cpup \
         -I $(LITEOSTOPDIR)/kernel/extended/trace
 
-LITEOS_CXXINCLUDE += \
-        $(LITEOS_NET_INCLUDE) \
-        -I $(LITEOSTOPDIR)/kernel/base/include
+LITEOS_CXXINCLUDE = $(LITEOS_INCLUDE)
 
 LITEOS_COPTS_NODEBUG    := $(LITEOS_NODEBUG) $(LITEOS_COPTS_BASE) $(LITEOS_COPTS_EXTRA)
 LITEOS_COPTS_INTERWORK  := $(LITEOS_INTERWORK) $(LITEOS_COPTS_BASE) $(LITEOS_COPTS_EXTRA_INTERWORK)
diff --git a/tools/scripts/make_rootfs/rootfsdir.sh b/tools/scripts/make_rootfs/rootfsdir.sh
index 269f097f..cb9f260e 100755
--- a/tools/scripts/make_rootfs/rootfsdir.sh
+++ b/tools/scripts/make_rootfs/rootfsdir.sh
@@ -53,7 +53,7 @@ fi
 cp -f ${LIB_DIR}/* ${ROOTFS_DIR}/lib
 cp -u ${LIB_DIR}/* ${OUT_DIR}/libs
 
-if [ -e ${ETC_DIR} ]; then
+if [ -e ${ETC_DIR}/.mkshrc ]; then
 cp -f ${ETC_DIR}/.mkshrc ${ROOTFS_DIR}/etc
 cp -u ${ETC_DIR}/.mkshrc ${OUT_DIR}/etc
 fi