diff --git a/BUILD.gn b/BUILD.gn
index e3c2d3ce25168f4b31c023d9489dd1fbc45737d3..31915cb13c7952b1baff49dc0146fb3227507ba7 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -32,6 +32,7 @@ import("//build/lite/config/component/lite_component.gni")
 declare_args() {
   tee_enable = false
   liteos_name = "OHOS_Image"
+  liteos_skip_make = false
 }
 
 cmd = "if [ -f $device_path/BUILD.gn ]; then echo true; else echo false; fi"
@@ -189,6 +190,9 @@ config("los_common") {
   ]
 
   defines = [ "__LITEOS__" ]
+  if (!defined(LOSCFG_DEBUG_VERSION)) {
+    defines += [ "NDEBUG" ]
+  }
 
   cflags_c = [ "-std=c99" ]
 
@@ -262,6 +266,11 @@ config("los_common") {
       "-mthumb",
       "-Wa,-mimplicit-it=thumb",
     ]
+    if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
+      # llvm-as do not support "-mimplicit-it=thumb" option currently,
+      # so we remove it temporary.
+      cflags -= [ "-Wa,-mimplicit-it=thumb" ]
+    }
   }
 
   asmflags = cflags
@@ -375,7 +384,11 @@ build_ext_component("make") {
   outdir = rebase_path(get_path_info(".", "out_dir"))
   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}\""
-  command += " \"${device_company}\" \"${product_path}\" $outdir \"${ohos_version}\" ${sysroot_path} \"${arch_cflags}\""
-  command += " \"${device_path}\""
+  command = "./build.sh \"$board_name\" \"$ohos_build_compiler\" \"$root_build_dir\" \"$ohos_build_type\" \"$tee_enable\""
+  command += " \"$device_company\" \"$product_path\" \"$outdir\" \"$ohos_version\" \"$sysroot_path\" \"$arch_cflags\""
+  command += " \"$device_path\" \"$compile_prefix\""
+  if (liteos_skip_make) {
+    print("build_ext_component \"$target_name\" skipped:", command)
+    command = "true"
+  }
 }
diff --git a/Kconfig b/Kconfig
index 8b8704e870aa4cf6d93e89652f029e4fb6ff458d..ca2bd5802cf49ae69ac4ea880829149484880351 100644
--- a/Kconfig
+++ b/Kconfig
@@ -193,8 +193,8 @@ config DEBUG_VERSION
     default n
     help
       If you do not select this option that means you enable a release version for LiteOS.
-      It also means you do not want to use debug modules, like shell,telnet,tftp,
-      ,nfs,ramfs proc and memory check.
+      It also means you do not want to use debug modules, like shell,telnet,tftp,nfs and
+      memory check, etc.
       If you select this option that means you enable a debug version for LiteOS.
       That means you want a opposite behaviour compared to release version.
 
diff --git a/Makefile b/Makefile
index 20d0bad7996521f79c8fd6d640858f479d542881..e18f8fefabbd8facfdaca4684ccbbd74650b94ff 100644
--- a/Makefile
+++ b/Makefile
@@ -28,51 +28,26 @@
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 LITEOSTOPDIR := $(realpath $(dir $(firstword $(MAKEFILE_LIST))))
-LITEOSTHIRDPARTY := $(LITEOSTOPDIR)/../../third_party
-
-export LITEOSTOPDIR
-export LITEOSTHIRDPARTY
 
 APPS = apps
 ROOTFS = rootfs
 LITEOS_TARGET = liteos
 LITEOS_LIBS_TARGET = libs
+KCONFIG_CMDS := $(notdir $(wildcard $(dir $(shell which menuconfig))*config))
 
-# 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),)
 PRODUCT_PATH:=$(ohos_product_path)
 endif
-export PRODUCT_PATH
 
 ifeq ($(DEVICE_PATH),)
 DEVICE_PATH:=$(ohos_device_path)
 endif
-export DEVICE_PATH
 
 ifeq ($(TEE:1=y),y)
 tee = _tee
@@ -84,9 +59,25 @@ CONFIG ?= $(PRODUCT_PATH)/kernel_configs/debug$(tee).config
 endif
 
 KCONFIG_CONFIG ?= $(CONFIG)
-export KCONFIG_CONFIG
+SYSROOT_PATH ?= $(LITEOSTOPDIR)/../../prebuilts/lite/sysroot
+LITEOS_MENUCONFIG_H ?= $(LITEOSTOPDIR)/config.h
+LITEOS_CONFIG_FILE ?= $(LITEOSTOPDIR)/.config
 
--include $(LITEOSTOPDIR)/tools/build/config.mk
+# export los_config.mk related environment variables
+export LITEOSTOPDIR
+export LITEOS_MENUCONFIG_H
+export LITEOS_CONFIG_FILE
+
+# export subdir Makefile related environment variables
+export SYSROOT_PATH
+export PRODUCT_PATH
+export DEVICE_PATH
+
+# export kconfig related environment variables
+export CONFIG_=LOSCFG_
+export srctree=$(LITEOSTOPDIR)
+
+include $(LITEOSTOPDIR)/config.mk
 
 ifeq ($(LOSCFG_STORAGE_SPINOR), y)
 FSTYPE = jffs2
@@ -112,16 +103,19 @@ Targets:
     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
+    $(APPS):       build all apps
+    $(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)
+    xxconfig:   invoke xxconfig command of kconfiglib (xxconfig is one of $(KCONFIG_CMDS))
 
 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
+    args:       arguments for xxconfig command
 -------------------------------------------------------
 endef
 export HELP
@@ -139,27 +133,22 @@ endif
 	$(HIDE)echo "sysroot:" $(abspath $(SYSROOT_PATH))
 endif
 
-KCONFIG_CMDS := $(notdir $(wildcard $(dir $(shell which menuconfig))*config))
 $(KCONFIG_CMDS):
 	$(HIDE)$@ $(args)
 
-$(LITEOS_MENUCONFIG_H) $(CONFIG_FILE): $(KCONFIG_CONFIG)
-	$(HIDE)genconfig --config-out $(CONFIG_FILE) --header-path $(LITEOS_MENUCONFIG_H) $(args)
+$(LITEOS_CONFIG_FILE): $(KCONFIG_CONFIG)
+	$(HIDE)env KCONFIG_CONFIG=$< genconfig --config-out $@ --header-path $(LITEOS_MENUCONFIG_H)
 
 update_config:
 	$(HIDE)test -f "$(CONFIG)" && cp -v "$(CONFIG)" .config && menuconfig && savedefconfig --out "$(CONFIG)"
 
-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 $$dir all || exit 1; done
+$(LITEOS_LIBS_TARGET):
+	$(HIDE)for dir in $(LIB_SUBDIRS); do $(MAKE) -C $$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).bin
 $(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET).sym.sorted
 $(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET).asm
 #$(LITEOS_TARGET): $(OUT)/$(LITEOS_TARGET).size
@@ -169,7 +158,7 @@ $(OUT)/$(LITEOS_TARGET): $(LITEOS_LIBS_TARGET)
 $(OUT)/$(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)
+$(OUT)/$(LITEOS_TARGET).bin: $(OUT)/$(LITEOS_TARGET)
 	$(OBJCOPY) -O binary $< $@
 $(OUT)/$(LITEOS_TARGET).sym.sorted: $(OUT)/$(LITEOS_TARGET)
 	$(OBJDUMP) -t $< |sort >$@
@@ -178,10 +167,11 @@ $(OUT)/$(LITEOS_TARGET).asm: $(OUT)/$(LITEOS_TARGET)
 $(OUT)/$(LITEOS_TARGET).size: $(OUT)/$(LITEOS_TARGET)
 	$(NM) -S --size-sort $< >$@
 
-$(APPS): prepare
+$(APPS):
 	$(HIDE)$(MAKE) -C apps all
 
 $(ROOTFS): $(APPS)
+	$(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
@@ -190,23 +180,22 @@ else
 	$(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)
+	$(HIDE)$(STRIP) $(OUT)/musl/*
+	$(HIDE)$(LITEOS_SCRIPTPATH)/make_rootfs/rootfsdir.sh $(OUT) $(ROOTFS_DIR)
 ifneq ($(VERSION),)
-	$(HIDE)$(LITEOSTOPDIR)/tools/scripts/make_rootfs/releaseinfo.sh "$(VERSION)" $(ROOTFS_DIR) $(LITEOS_TARGET_DIR)
+	$(HIDE)$(LITEOS_SCRIPTPATH)/make_rootfs/releaseinfo.sh "$(VERSION)" $(ROOTFS_DIR)
 endif
-	$(HIDE)$(LITEOSTOPDIR)/tools/scripts/make_rootfs/rootfsimg.sh $(ROOTFS_DIR) $(FSTYPE)
+	$(HIDE)$(LITEOS_SCRIPTPATH)/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 $$dir clean || exit 1; done
-	$(HIDE)$(MAKE) -C apps clean
-	$(HIDE)$(RM) $(LITEOS_MENUCONFIG_H) $(CONFIG_FILE)
+	$(HIDE)for dir in $(LIB_SUBDIRS) apps; do $(MAKE) -C $$dir clean || exit 1; done
+	$(HIDE)$(RM) $(LITEOS_MENUCONFIG_H)
 	$(HIDE)echo "clean $(LOSCFG_PLATFORM) finish"
 
 cleanall: clean
-	$(HIDE)$(RM) $(LITEOSTOPDIR)/out
+	$(HIDE)$(RM) $(LITEOSTOPDIR)/out $(LITEOS_CONFIG_FILE)
 	$(HIDE)echo "clean all done"
 
-.PHONY: all clean cleanall prepare sysroot help update_config
-.PHONY: $(LITEOS_TARGET) $(ROOTFS) $(APPS) $(KCONFIG_CMDS) $(LITEOS_LIBS_TARGET)
+.PHONY: all clean cleanall sysroot help update_config
+.PHONY: $(LITEOS_TARGET) $(ROOTFS) $(APPS) $(KCONFIG_CMDS) $(LITEOS_LIBS_TARGET) $(KCONFIG_CONFIG)
diff --git a/apps/Makefile b/apps/Makefile
index 94fcbb09a255beaede770e5e485fcc3278bdc62e..fd589674ce5b3623e2f3363195ba4abfa29cb4d1 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -27,11 +27,12 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-LITEOSTOPDIR := $(shell pwd)/../
+APPSTOPDIR := $(shell pwd)
+LITEOSTOPDIR ?= $(APPSTOPDIR)/..
+export LITEOSTOPDIR
+export APPSTOPDIR
 
-include $(LITEOSTOPDIR)/.config
-include ./config.mk
-include ./module.mk
+include $(APPSTOPDIR)/config.mk
 
 HIDE := @
 APPS := app
diff --git a/apps/app.mk b/apps/app.mk
new file mode 100644
index 0000000000000000000000000000000000000000..d79f6684288bf9d26aef875e88b5e12f88b02d64
--- /dev/null
+++ b/apps/app.mk
@@ -0,0 +1,103 @@
+# 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.
+
+OBJOUT := $(BUILD)$(dir $(subst $(LITEOSTOPDIR),,$(shell pwd)))$(APP_NAME)
+
+APP := $(OUT)/bin/$(APP_NAME)
+
+# create a separate list of objects per source type
+
+LOCAL_CSRCS := $(filter %.c,$(LOCAL_SRCS))
+LOCAL_CPPSRCS := $(filter %.cpp,$(LOCAL_SRCS))
+LOCAL_ASMSRCS := $(filter %.S,$(LOCAL_SRCS))
+LOCAL_ASMSRCS2 := $(filter %.s,$(LOCAL_SRCS))
+LOCAL_CCSRCS := $(filter %.cc,$(LOCAL_SRCS))
+
+LOCAL_COBJS := $(patsubst %.c,$(OBJOUT)/%.o,$(LOCAL_CSRCS))
+LOCAL_CPPOBJS := $(patsubst %.cpp,$(OBJOUT)/%.o,$(LOCAL_CPPSRCS))
+LOCAL_ASMOBJS := $(patsubst %.S,$(OBJOUT)/%.o,$(LOCAL_ASMSRCS))
+LOCAL_ASMOBJS2 := $(patsubst %.s,$(OBJOUT)/%.o,$(LOCAL_ASMSRCS2))
+LOCAL_CCOBJS := $(patsubst %.cc,$(OBJOUT)/%.o,$(LOCAL_CCSRCS))
+
+LOCAL_OBJS := $(LOCAL_COBJS) $(LOCAL_CPPOBJS) $(LOCAL_ASMOBJS) $(LOCAL_ASMOBJS2) $(LOCAL_CCOBJS)
+
+LOCAL_CGCH := $(patsubst %.h,%.h.gch,$(LOCAL_CHS))
+LOCAL_CPPGCH := $(patsubst %.h,%.h.gch,$(LOCAL_CPPHS))
+
+all : $(APP)
+
+$(LOCAL_COBJS): $(OBJOUT)/%.o: %.c
+	$(HIDE)$(OBJ_MKDIR)
+	$(HIDE)$(CC) $(CFLAGS) $(LOCAL_FLAGS) $(LOCAL_CFLAGS) -c $< -o $@
+
+$(LOCAL_CPPOBJS): $(OBJOUT)/%.o: %.cpp
+	$(HIDE)$(OBJ_MKDIR)
+	$(HIDE)$(GPP) $(CXXFLAGS) $(LOCAL_FLAGS) $(LOCAL_CPPFLAGS) -c $< -o $@
+
+$(LOCAL_ASMOBJS): $(OBJOUT)/%.o: %.S
+	$(HIDE)$(OBJ_MKDIR)
+	$(HIDE)$(CC) $(CFLAGS) $(LOCAL_FLAGS) $(LOCAL_ASFLAGS) -c $< -o $@
+
+$(LOCAL_ASMOBJS2): $(OBJOUT)/%.o: %.s
+	$(HIDE)$(OBJ_MKDIR)
+	$(HIDE)$(AS) $(ASFLAGS) $(LOCAL_FLAGS) $(LOCAL_ASFLAGS) -c $< -o $@
+
+$(LOCAL_CCOBJS): $(OBJOUT)/%.o: %.cc
+	$(HIDE)$(OBJ_MKDIR)
+	$(HIDE)$(GPP) $(CXXFLAGS) $(LOCAL_FLAGS) $(LOCAL_CPPFLAGS) -c $< -o $@
+
+$(LOCAL_CGCH): %.h.gch : %.h
+	$(HIDE)$(CC) $(CFLAGS) $(LOCAL_FLAGS) $(LOCAL_CFLAGS) $> $^
+
+$(LOCAL_CPPGCH): %.h.gch : %.h
+	$(HIDE)$(GPP) $(CXXFLAGS) $(LOCAL_FLAGS) $(LOCAL_CPPFLAGS) -x c++-header $> $^
+
+LOCAL_GCH := $(LOCAL_CGCH) $(LOCAL_CPPGCH)
+
+$(LOCAL_OBJS): $(LOCAL_GCH)
+$(APP): $(LOCAL_OBJS)
+	$(HIDE)$(OBJ_MKDIR)
+	$(HIDE)$(GPP) $(LDFLAGS) $^ -o $@
+
+clean:
+	$(HIDE)$(RM) $(APP) $(OBJOUT) $(LOCAL_GCH) *.bak *~
+
+.PHONY: all clean
+
+# clear some variables we set here
+LOCAL_CSRCS :=
+LOCAL_CPPSRCS :=
+LOCAL_ASMSRCS :=
+LOCAL_COBJS :=
+LOCAL_CPPOBJS :=
+LOCAL_ASMOBJS :=
+LOCAL_ASMOBJS2 :=
+
+# LOCAL_OBJS is passed back
+#LOCAL_OBJS :=
diff --git a/apps/config.mk b/apps/config.mk
index 417446cbbb7be8a8b3bce76269c1c07b77aab186..dbb4ed58f7d1f610a6ed798c9990d5851d38ff58 100644
--- a/apps/config.mk
+++ b/apps/config.mk
@@ -27,30 +27,19 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-# common dir config
 include $(LITEOSTOPDIR)/config.mk
 
-# output dir config
-OBJOUT := $(APPSTOPDIR)/out
-APPSOUT := $(OBJOUT)/apps
-LIBSOUT := $(OBJOUT)/libs
-IMGOUT  := $(OUT)
+ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
+LLVM_SYSROOT := --sysroot=$(SYSROOT_PATH) $(ARCH_CFLAGS)
+endif
 
 # common flags config
 BASE_OPTS := -ffunction-sections -fdata-sections -fno-omit-frame-pointer -fno-common -fno-strict-aliasing -D_GNU_SOURCE \
-             $(LITEOS_SSP) $(LITEOS_CORE_COPTS) $(WARNING_AS_ERROR) $(LLVM_EXTRA_OPTS) $(LITEOS_GCOV_OPTS)
+             $(LITEOS_SSP) $(LITEOS_CORE_COPTS) $(WARNING_AS_ERROR) $(LLVM_EXTRA_OPTS) $(LLVM_SYSROOT) $(LITEOS_GCOV_OPTS)
 
-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=$(SYSROOT_PATH) $(ARCH_CFLAGS)
-LDCXXFLGS := -lc++ -lc++abi -lc
-else
-BASE_OPTS += -Wl,-z,relro,-z,now
-LDCXXFLGS := -lstdc++ -lsupc++ -lc
-endif
-COMMON_INCLUDE := -I $(LITEOSTHIRDPARTY)/bounds_checking_function/include
+CFLAGS := -std=c99 -fPIE -fno-exceptions $(BASE_OPTS) $(LITEOS_COPTS_OPTMIZE)
+CXXFLAGS := -std=c++11 -fPIE -fexceptions -fpermissive -frtti $(BASE_OPTS) $(LITEOS_COPTS_OPTMIZE)
+LDFLAGS  := -pie -s -Wl,-z,relro,-z,now $(BASE_OPTS) $(LLVM_EXTRA_LD_OPTS)
 
 # alias variable config
 HIDE := @
@@ -58,3 +47,22 @@ MAKE := make
 RM := rm -rf
 CP := cp -rf
 MV := mv -f
+
+APP := $(APPSTOPDIR)/app.mk
+APP_SUBDIRS :=
+
+##build modules config##
+
+ifeq ($(LOSCFG_SHELL), y)
+APP_SUBDIRS += shell
+#APP_SUBDIRS += mksh
+#APP_SUBDIRS += toybox
+endif
+
+ifeq ($(LOSCFG_USER_INIT_DEBUG), y)
+APP_SUBDIRS += init
+endif
+
+ifeq ($(LOSCFG_NET_LWIP_SACK_TFTP), y)
+APP_SUBDIRS += tftp
+endif
diff --git a/apps/init/Makefile b/apps/init/Makefile
index 96eba811382793af81db1ebad894e6b0877440e1..e8567a984b9612e1188b02883e19ed214c3f9382 100644
--- a/apps/init/Makefile
+++ b/apps/init/Makefile
@@ -27,43 +27,15 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-INIT_DIR := $(dir $(shell pwd))/init/
+include $(APPSTOPDIR)/config.mk
 
-ifeq ($(APPSTOPDIR), )
-APPSTOPDIR := $(shell pwd)/../
-LITEOSTOPDIR = $(APPSTOPDIR)/../
-endif
-include $(INIT_DIR)/../config.mk
+APP_NAME := $(notdir $(shell pwd))
 
-APPS_OUT := $(OUT)/bin
 LOCAL_SRCS := src/init.c
-LOCAL_OBJ := src/init.o
-
-ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-LOCAL_FLAGS += -Wno-shift-op-parentheses -Wno-bitwise-op-parentheses -Wnonnull $(LLVM_SYSROOT)
-LDCFLAGS += $(LLVM_EXTRA_LD_OPTS) $(LLVM_SYSROOT)
-endif
 
 ifeq ($(LOSCFG_QUICK_START), y)
-LDCFLAGS += --static
+LDFLAGS += --static
 CFLAGS += -DLOSCFG_QUICK_START
 endif
 
-INITNAME := init
-
-all: $(INITNAME)
-
-$(LOCAL_OBJ): %.o : %.c
-	$(HIDE) $(CC) $(CFLAGS) $(LOCAL_FLAGS) -fPIE $(LOCAL_INCLUDE) -c $< -o $@
-
-$(INITNAME):$(LOCAL_OBJ)
-	$(HIDE) $(CC) -pie -s $(LDPATH) $(BASE_OPTS) -o $(INITNAME) $^ $(LDCFLAGS)
-	$(HIDE) mkdir -p $(APPS_OUT)
-	$(HIDE) $(MV) $(INITNAME) $(APPS_OUT)
-	$(HIDE) $(RM) $(LOCAL_OBJ)
-
-clean:
-	$(HIDE) $(RM) $(LOCAL_OBJ)
-	$(HIDE) $(RM) $(INITNAME)
-
-.PHONY: all $(INITNAME) clean
+include $(APP)
diff --git a/apps/mksh/Makefile b/apps/mksh/Makefile
index 3431dd5c9a6b39a0d7b3e6430ab553e4263dc9eb..406d45d23c4208fcd851a300b10f974ebf1c470d 100755
--- a/apps/mksh/Makefile
+++ b/apps/mksh/Makefile
@@ -27,11 +27,11 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+include $(APPSTOPDIR)/config.mk
+
 MKSH := mksh
 
 MKSH_DIR := $(shell pwd)/
-LITEOSTOPDIR = $(MKSH_DIR)/../../
-include $(MKSH_DIR)/../config.mk
 
 APPS_OUT := $(OUT)/bin
 ETC_OUT := $(OUT)/etc
diff --git a/apps/module.mk b/apps/module.mk
deleted file mode 100644
index 285a1bc45d29d3ece53ec481bf7779a0d3d88309..0000000000000000000000000000000000000000
--- a/apps/module.mk
+++ /dev/null
@@ -1,46 +0,0 @@
-# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
-# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without modification,
-# are permitted provided that the following conditions are met:
-#
-# 1. Redistributions of source code must retain the above copyright notice, this list of
-#    conditions and the following disclaimer.
-#
-# 2. Redistributions in binary form must reproduce the above copyright notice, this list
-#    of conditions and the following disclaimer in the documentation and/or other materials
-#    provided with the distribution.
-#
-# 3. Neither the name of the copyright holder nor the names of its contributors may be used
-#    to endorse or promote products derived from this software without specific prior written
-#    permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-APP_SUBDIRS :=
-
-##build modules config##
-
-ifeq ($(LOSCFG_SHELL), y)
-APP_SUBDIRS += shell
-#APP_SUBDIRS += mksh
-#APP_SUBDIRS += toybox
-endif
-
-ifeq ($(LOSCFG_USER_INIT_DEBUG), y)
-APP_SUBDIRS += init
-endif
-
-ifeq ($(LOSCFG_NET_LWIP_SACK_TFTP), y)
-APP_SUBDIRS += tftp
-endif
diff --git a/apps/shell/Makefile b/apps/shell/Makefile
index 23024cac865c6f7d453e7169569c006879fa3ff9..e281c760d8a1fcc679a97d75d06fb0cd48fe0b3f 100644
--- a/apps/shell/Makefile
+++ b/apps/shell/Makefile
@@ -27,14 +27,9 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-SHELL_DIR := $(dir $(shell pwd))/shell/
+include $(APPSTOPDIR)/config.mk
 
-ifeq ($(APPSTOPDIR), )
-APPSTOPDIR := $(shell pwd)/../
-LITEOSTOPDIR = $(APPSTOPDIR)/../
-endif
-include $(SHELL_DIR)/../config.mk
-APPS_OUT := $(OUT)/bin
+APP_NAME := $(notdir $(shell pwd))
 
 SECUREC_INCLUDE := $(LITEOSTHIRDPARTY)/bounds_checking_function/include
 
@@ -44,35 +39,11 @@ LOCAL_SRCS = $(wildcard src/main.c)\
              $(wildcard src/shcmdparse.c)\
              $(wildcard builtin/cd.c)
 LOCAL_SRCS += $(wildcard $(LITEOSTHIRDPARTY)/bounds_checking_function/src/*.c)
-LOCAL_OBJ := $(LOCAL_SRCS:.c=.o)
 
 LOCAL_INCLUDE := \
-	-I $(SHELL_DIR)/include/ \
+	-I include/ \
 	-I $(SECUREC_INCLUDE)\
 
-LOCAL_FLAGS += $(CFLAGS)
+LOCAL_FLAGS += $(LOCAL_INCLUDE)
 
-LDPATH := -L$(SHELL_DIR)/
-ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-LOCAL_FLAGS += -Wno-shift-op-parentheses -Wno-bitwise-op-parentheses $(LLVM_SYSROOT)
-LDCFLAGS += $(LLVM_EXTRA_LD_OPTS) $(LLVM_SYSROOT)
-endif
-
-SHELLNAME := shell
-
-all: $(SHELLNAME)
-
-$(LOCAL_OBJ): %.o : %.c
-	$(HIDE) $(CC) $(LOCAL_FLAGS) -fPIE $(LOCAL_INCLUDE) -c $< -o $@
-
-$(SHELLNAME): $(LOCAL_OBJ)
-	$(HIDE) $(CC) -pie -s $(LDPATH) $(BASE_OPTS) -o $(SHELLNAME) $^ $(LDCFLAGS)
-	$(HIDE) mkdir -p $(APPS_OUT)
-	$(HIDE) $(MV) $(SHELLNAME) $(APPS_OUT)
-	$(HIDE) $(RM) $(LOCAL_OBJ)
-
-clean:
-	$(HIDE) $(RM) $(LOCAL_OBJ)
-	$(HIDE) $(RM) $(SHELLNAME)
-
-.PHONY: all $(SHELLNAME) clean
+include $(APP)
diff --git a/apps/tftp/Makefile b/apps/tftp/Makefile
index 37cf594c1123840299d5eabc0bdb9f121c02236b..4690d069a3fcb7871765d22fdca418c64dc70463 100644
--- a/apps/tftp/Makefile
+++ b/apps/tftp/Makefile
@@ -27,14 +27,9 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-ROOT_DIR := $(dir $(shell pwd))/tftp/
+include $(APPSTOPDIR)/config.mk
 
-ifeq ($(APPSTOPDIR), )
-APPSTOPDIR := $(shell pwd)/../
-LITEOSTOPDIR = $(APPSTOPDIR)/../
-endif
-include $(ROOT_DIR)/../config.mk
-APPS_OUT := $(OUT)/bin
+APP_NAME := $(notdir $(shell pwd))
 
 SECUREC_DIR := $(LITEOSTHIRDPARTY)/bounds_checking_function
 
@@ -43,35 +38,11 @@ LOCAL_SRCS += $(wildcard $(SECUREC_DIR)/src/strncpy_s.c)
 LOCAL_SRCS += $(wildcard $(SECUREC_DIR)/src/memcpy_s.c)
 LOCAL_SRCS += $(wildcard $(SECUREC_DIR)/src/memset_s.c)
 LOCAL_SRCS += $(wildcard $(SECUREC_DIR)/src/strncat_s.c)
-LOCAL_OBJ := $(LOCAL_SRCS:.c=.o)
 
 LOCAL_INCLUDE := \
-	-I $(ROOT_DIR)/include/ \
+	-I include/ \
 	-I $(SECUREC_DIR)/include/\
 
-LOCAL_FLAGS += $(CFLAGS)
+LOCAL_FLAGS += $(LOCAL_INCLUDE)
 
-LDPATH := -L$(ROOT_DIR)/
-ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-LOCAL_FLAGS += -Wno-shift-op-parentheses -Wno-bitwise-op-parentheses $(LLVM_SYSROOT)
-LDCFLAGS += $(LLVM_EXTRA_LD_OPTS) $(LLVM_SYSROOT)
-endif
-
-TARGETNAME := tftp
-
-all: $(TARGETNAME)
-
-$(LOCAL_OBJ): %.o : %.c
-	$(HIDE) $(CC) $(LOCAL_FLAGS) -fPIE $(LOCAL_INCLUDE) -c $< -o $@
-
-$(TARGETNAME): $(LOCAL_OBJ)
-	$(HIDE) $(CC) -pie -s $(LDPATH) $(BASE_OPTS) -o $(TARGETNAME) $^ $(LDCFLAGS)
-	$(HIDE) mkdir -p $(APPS_OUT)
-	$(HIDE) $(MV) $(TARGETNAME) $(APPS_OUT)
-	$(HIDE) $(RM) $(LOCAL_OBJ)
-
-clean:
-	$(HIDE) $(RM) $(LOCAL_OBJ)
-	$(HIDE) $(RM) $(TARGETNAME)
-
-.PHONY: all $(TARGETNAME) clean
+include $(APP)
diff --git a/apps/toybox/Makefile b/apps/toybox/Makefile
index 2ca70f2f0add7f0f97603b341f13ef067b377d57..b73dbeabd6d1900787cdea10874a88d070cc5be2 100644
--- a/apps/toybox/Makefile
+++ b/apps/toybox/Makefile
@@ -27,11 +27,11 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+include $(APPSTOPDIR)/config.mk
+
 TOYBOX:= toybox
 
 TOYBOX_DIR := $(shell pwd)
-LITEOSTOPDIR = $(TOYBOX_DIR)/../../
-include $(TOYBOX_DIR)/../config.mk
 
 APPS_OUT := $(OUT)/bin
 BUILD_DIR := $(TOYBOX_DIR)/build
diff --git a/build.sh b/build.sh
index 5afaf6f2efb9cf6af26950577bd24e254e4478af..fad8b51b03b335e1f409cbd37babf27a950463ed 100755
--- a/build.sh
+++ b/build.sh
@@ -42,17 +42,20 @@ ohos_version=${9}
 sysroot_path=${10}
 arch_cflags=${11}
 device_path=${12}
+compile_prefix=${13}
 
 echo "${board_name}" "${device_company}"
 echo "sh param:" "$@"
 
-destination="defconfig"
+destination="${outdir}/defconfig"
 function main() {
     tee=""
     if [ "${tee_enable}" = "true" ]; then
         tee="_tee"
     fi
 
+    mkdir -p "${destination%/*}"
+
     config_file="${product_path}/kernel_configs/${ohos_build_type}${tee}.config"
     if [ -f "${config_file}" ]; then
         cp "${config_file}" "${destination}"
@@ -88,9 +91,13 @@ fi
 export PRODUCT_PATH="${product_path}"
 export DEVICE_PATH="${device_path}"
 
-OUTDIR="${outdir}"
-CONFIG="$(realpath ${destination})"
+export OUTDIR="${outdir}"
+export KCONFIG_CONFIG="${destination}"
+export LITEOS_MENUCONFIG_H="${destination%/*}/config.h"
+export LITEOS_CONFIG_FILE="${destination%/*}/.config"
+export LITEOS_COMPILER_PATH="${compile_prefix%/*}/"
+export CROSS_COMPILE="${compile_prefix##*/}"
 
 main && \
-make clean CONFIG="$CONFIG" OUTDIR="$OUTDIR" && \
-make -j all VERSION="${ohos_version}" CONFIG="$CONFIG" OUTDIR="$OUTDIR"
+make clean && \
+make -j all VERSION="${ohos_version}"
diff --git a/config.mk b/config.mk
deleted file mode 120000
index 9dcbbc33bd1a113c87e4c8be945c7663d34f270a..0000000000000000000000000000000000000000
--- a/config.mk
+++ /dev/null
@@ -1 +0,0 @@
-tools/build/config.mk
\ No newline at end of file
diff --git a/config.mk b/config.mk
new file mode 100644
index 0000000000000000000000000000000000000000..2345d71301e22e9f6b9727c90049e3553be11e83
--- /dev/null
+++ b/config.mk
@@ -0,0 +1,53 @@
+# 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
+##### liteos tables -u ldflags #####
+-include $(LITEOSTOPDIR)/tools/build/mk/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/fs/nfs/Kconfig b/fs/nfs/Kconfig
index f6a58d9e700ce2911499ea7be5e0a45d60a9734b..5665c46c4f738a3cecd67ece9dcf2eca977a0c59 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -3,5 +3,6 @@ config FS_NFS
     default y
     depends on FS_VFS
     depends on NET_LWIP_SACK
+    depends on DEBUG_VERSION
     help
       Answer Y to enable LiteOS support nfs filesystem.
diff --git a/kernel/extended/vdso/BUILD.gn b/kernel/extended/vdso/BUILD.gn
index fd7608f5951a4024610e6e88940e4c6657d93cb8..5df0a1327ec6398f3c801b2410e3329a54c26f81 100644
--- a/kernel/extended/vdso/BUILD.gn
+++ b/kernel/extended/vdso/BUILD.gn
@@ -46,8 +46,10 @@ config("public") {
   include_dirs = [ "include" ]
 }
 
-copy("copy_ohos_vdso") {
-  deps = [ "usr:OHOS-vdso" ]
-  sources = [ get_path_info("usr/", "out_dir") + "/libOHOS-vdso.so" ]
-  outputs = [ "$root_out_dir/OHOS-vdso.so" ]
+if (module_switch) {
+  copy("copy_ohos_vdso") {
+    deps = [ "usr:OHOS-vdso" ]
+    sources = [ get_path_info("usr/", "out_dir") + "/libOHOS-vdso.so" ]
+    outputs = [ "$root_out_dir/OHOS-vdso.so" ]
+  }
 }
diff --git a/kernel/extended/vdso/src/Makefile b/kernel/extended/vdso/src/Makefile
index f5de37eeff047cdf84d58a95bad360004d0f5ffd..eacf8d243fe525cfdcdbf3a99c7199ee7fef4cdd 100644
--- a/kernel/extended/vdso/src/Makefile
+++ b/kernel/extended/vdso/src/Makefile
@@ -33,8 +33,8 @@ MODULE_NAME := $(notdir $(shell pwd)/../vdso)
 
 LOCAL_SRCS := $(wildcard *.c) $(wildcard *.S)
 
-LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/kernel/base/include -I $(LITEOSTOPDIR)/kernel/extended/include -I $(LITEOSTOPDIR)/kernel/extended/vdso/include
+LOCAL_INCLUDE := -I $(LITEOSTOPDIR)/kernel/base/include -I ../include
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) -DOHOS_VDSO_SO=\"../usr/OHOS-vdso.so\"
+LOCAL_FLAGS := $(LOCAL_INCLUDE) -DOHOS_VDSO_SO=\"$(OUT)/lib/OHOS-vdso.so\"
 
 include $(MODULE)
\ No newline at end of file
diff --git a/kernel/extended/vdso/usr/BUILD.gn b/kernel/extended/vdso/usr/BUILD.gn
index 2c6edf94ca0f07ba761ada50df55eeb9f61b9ffa..fd12801221b408e50de464abab6ac57e7a27b560 100644
--- a/kernel/extended/vdso/usr/BUILD.gn
+++ b/kernel/extended/vdso/usr/BUILD.gn
@@ -53,7 +53,6 @@ shared_library("OHOS-vdso") {
   defines = [ "_XOPEN_SOURCE=700" ]
 
   ldflags = [
-    "-Wl,-s",
     "-Wl,-Bsymbolic",
     "-Wl,-T" + rebase_path("los_vdso.ld", root_build_dir),
   ]
diff --git a/kernel/extended/vdso/usr/Makefile b/kernel/extended/vdso/usr/Makefile
index 68819e19e731b1dbe83f1e15dc75ad2f1aa03037..0a34e5a5b9ec24d95100a9d7908b7bb54975e786 100644
--- a/kernel/extended/vdso/usr/Makefile
+++ b/kernel/extended/vdso/usr/Makefile
@@ -29,7 +29,7 @@
 
 include $(LITEOSTOPDIR)/config.mk
 
-VDSO_SO = OHOS-vdso
+VDSO_SO = $(OUT)/lib/OHOS-vdso.so
 
 VDSO_SRCS := los_vdso_sys.c
 VDSO_INCLUDE := -I $(LITEOSTOPDIR)/kernel/extended/vdso/include \
@@ -41,14 +41,14 @@ 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 += $(LLVM_EXTRA_OPTS) --sysroot=$(SYSROOT_PATH)
+VDSO_CCFLAGS += -O2
 endif
 
-VDSO_LDFLAGS := -shared -s -Bsymbolic -T los_vdso.ld
+VDSO_LDFLAGS := -shared -Wl,-s,-Bsymbolic,-Tlos_vdso.ld
 
 all: $(VDSO_SO)
-$(VDSO_SO):
-	$(HIDE)$(CC) $(VDSO_INCLUDE) $(VDSO_CCFLAGS) -c -o $@.o $(VDSO_SRCS)
-	$(HIDE)$(LD) $(VDSO_LDFLAGS) -o $@.so $@.o
+$(VDSO_SO): $(VDSO_SRCS)
+	$(HIDE)$(CC) $(VDSO_INCLUDE) $(VDSO_CCFLAGS) $(VDSO_LDFLAGS) -o $@ $^
 
 clean:
-	$(HIDE)$(RM) -rf *.o *.so
+	$(HIDE)$(RM) $(VDSO_SO)
diff --git a/platform/Kconfig b/platform/Kconfig
index afe9171d01badfc75bc6511e0286bbaa76bd0605..39357095131fb18ad67397f820457636b98dd4ce 100644
--- a/platform/Kconfig
+++ b/platform/Kconfig
@@ -45,7 +45,7 @@ config PLATFORM_QEMU_ARM_VIRT_CA7
 endchoice
 
 choice
-    prompt "Porduct"
+    prompt "Product"
     help
       Select your target board.
 
@@ -64,15 +64,15 @@ config PRODUCT_QEMU_ARM
 endchoice
 
 config BOARD_CONFIG_PATH
-    string "BOARD CONFIG PATH"
+    string "Board config path"
     default "config/board"
 
 config TEE_ENABLE
-    bool "ENABLE TEE"
+    bool "Enable TEE"
     default n
     depends on PLATFORM_HI3516DV300
     help
-        ENABLE teeos in platform
+        Enable teeos in platform
 
 config HRTIMER_ENABLE
     bool "HR TIMER enable"
diff --git a/platform/bsp.mk b/platform/bsp.mk
index 9d13ac327d449f92ada6482907313404d078ac2d..c4ac412024b3d7b73e427d399d2c9962afd1185c 100644
--- a/platform/bsp.mk
+++ b/platform/bsp.mk
@@ -41,7 +41,7 @@ USB_SRC     :=
 
 ########################## Qemu ARM Virt Options##############################
 
-LITEOS_BASELIB       += -lbsp
+LITEOS_BASELIB       += -lbsp -lbsp_config
 
 PLATFORM_BSP_BASE := $(LITEOSTOPDIR)/platform
 
@@ -53,5 +53,5 @@ PLATFORM_INCLUDE := -I $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH) \
                     -I $(PLATFORM_BSP_BASE)/hw/include \
                     -I $(PLATFORM_BSP_BASE)/include
 
-LIB_SUBDIRS             += $(PLATFORM_BSP_BASE)
+LIB_SUBDIRS             += $(PLATFORM_BSP_BASE) $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH)
 LITEOS_PLATFORM_INCLUDE += $(PLATFORM_INCLUDE)
diff --git a/testsuites/Makefile b/testsuites/Makefile
index a50c055237a8ad1aefe11d7bae15504956b527f0..4d79c1002e3a949f11084fa3b8ecb3a077f069fe 100644
--- a/testsuites/Makefile
+++ b/testsuites/Makefile
@@ -27,17 +27,12 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-LITEOSTESTTOPDIR := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
-export OS=$(shell uname -s)
-ifneq ($(OS), Linux)
-LITEOSTESTTOPDIR := $(shell dirname $(subst \,/,$(LITEOSTESTTOPDIR))/./)
-endif
-
-LITEOSTOPDIR := $(LITEOSTESTTOPDIR)/..
+LITEOSTESTTOPDIR := $(shell pwd)
+LITEOSTOPDIR ?= $(LITEOSTESTTOPDIR)/..
 export LITEOSTOPDIR
 export LITEOSTESTTOPDIR
 
--include $(LITEOSTESTTOPDIR)/config.mk
+include $(LITEOSTESTTOPDIR)/config.mk
 
 RM = -rm -rf
 MAKE = make
@@ -80,7 +75,7 @@ $(TEST_KERNEL): $(LITEOS_TEST_TARGET)
 
 $(LITEOS_TEST_TARGET): $(LITEOS_TEST_LIBC)
 	$(LD) $(LITEOS_LDFLAGS) $(LITEOS_TABLES_LDFLAGS) $(LITEOS_DYNLDFLAGS) -Map=$(OUT)/$@.map -o $(OUT)/$@ --start-group $(LITEOS_LIBDEP) --end-group
-	$(OBJCOPY) -O binary $(OUT)/$@ $(LITEOS_TARGET_DIR)/$@.bin
+	$(OBJCOPY) -O binary $(OUT)/$@ $(OUT)/$@.bin
 	$(OBJDUMP) -t $(OUT)/$@ |sort >$(OUT)/$@.sym.sorted
 	$(OBJDUMP) -d $(OUT)/$@ >$(OUT)/$@.asm
 
diff --git a/testsuites/config.mk b/testsuites/config.mk
index ed3df669dd12992704e580097204664869cf46e2..4a8d9587f3a8e34752514655013b0bf0bcf390af 100644
--- a/testsuites/config.mk
+++ b/testsuites/config.mk
@@ -28,12 +28,9 @@
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
--include $(LITEOSTOPDIR)/tools/build/config.mk
--include $(LITEOSTESTTOPDIR)/build/los_test_config.mk
-LITEOS_CFLAGS += -I $(LITEOSTOPDIR)/lib/libc/musl/include \
-    -I $(LITEOSTOPDIR)/lib/libc/musl/obj/include \
-    -I $(LITEOSTOPDIR)/lib/libc/musl/arch/arm \
-    -I $(LITEOSTOPDIR)/lib/libc/musl/arch/generic \
+include $(LITEOSTOPDIR)/config.mk
+include $(LITEOSTESTTOPDIR)/build/los_test_config.mk
+LITEOS_CFLAGS += \
     -I $(LITEOSTHIRDPARTY)/bounds_checking_function/include \
     -I $(LITEOSTOPDIR)/security/cap/ \
     -I $(LITEOSTOPDIR)/security/vid/ \
diff --git a/testsuites/unittest/fs/proc/Makefile b/testsuites/unittest/fs/proc/Makefile
deleted file mode 100644
index 17b845f1615b7b49a6f05344e393a02494411b8a..0000000000000000000000000000000000000000
--- a/testsuites/unittest/fs/proc/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-
-include $(LITEOSTOPDIR)/config.mk
-
-MODULE_NAME := $(notdir $(shell pwd))test
-
-LOCAL_INCLUDE := \
-    -I $(LITEOSTOPDIR)/test/kernel/include \
-    -I $(LITEOSTOPDIR)/fs/proc/include \
-    -I $(LITEOSTOPDIR)/fs/include \
-    -I $(LITEOSTOPDIR)/test/kernel/sample/fs/proc
-
-SRC_MODULES := .
-
-ifeq ($(LOSCFG_USER_TEST_LLT), y)
-LLT_MODULES := llt
-endif
-
-ifeq ($(LOSCFG_USER_TEST_PRESSURE), y)
-PRESSURE_MODULES := pressure
-endif
-
-ifeq ($(LOSCFG_USER_TEST_SMOKE), y)
-SMOKE_MODULES := smoke
-endif
-
-ifeq ($(LOSCFG_USER_TEST_FULL), y)
-FULL_MODULES := full
-endif
-
-LOCAL_MODULES := $(SRC_MODULES) $(LLT_MODULES) $(PRESSURE_MODULES) $(SMOKE_MODULES) $(FULL_MODULES)
-LOCAL_SRCS := $(foreach dir,$(LOCAL_MODULES),$(wildcard $(dir)/*.c))
-LOCAL_CHS := $(foreach dir,$(LOCAL_MODULES),$(wildcard $(dir)/*.h))
-
-LOCAL_FLAGS :=  $(LOCAL_INCLUDE)  -Wno-error
-
-include $(MODULE)
diff --git a/testsuites/unittest/fs/proc/proc.mk b/testsuites/unittest/fs/proc/proc.mk
deleted file mode 100644
index e5f355013d4e0a7d3ab855cebf25f02bc8c596ae..0000000000000000000000000000000000000000
--- a/testsuites/unittest/fs/proc/proc.mk
+++ /dev/null
@@ -1,53 +0,0 @@
-# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
-# Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without modification,
-# are permitted provided that the following conditions are met:
-#
-# 1. Redistributions of source code must retain the above copyright notice, this list of
-#    conditions and the following disclaimer.
-#
-# 2. Redistributions in binary form must reproduce the above copyright notice, this list
-#    of conditions and the following disclaimer in the documentation and/or other materials
-#    provided with the distribution.
-#
-# 3. Neither the name of the copyright holder nor the names of its contributors may be used
-#    to endorse or promote products derived from this software without specific prior written
-#    permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-SRC_MODULES := fs/proc
-
-ifeq ($(LOSCFG_USER_TEST_LLT), y)
-LLT_MODULES := fs/proc/llt
-endif
-
-ifeq ($(LOSCFG_USER_TEST_SMOKE), y)
-SMOKE_MODULES := fs/proc/smoke
-endif
-
-ifeq ($(LOSCFG_USER_TEST_FULL), y)
-FULL_MODULES := fs/proc/full
-endif
-
-ifeq ($(LOSCFG_USER_TEST_PRESSURE), y)
-PRESSURE_MODULES := fs/proc/pressure
-endif
-
-LOCAL_MODULES := $(SRC_MODULES) $(LLT_MODULES) $(PRESSURE_MODULES) $(SMOKE_MODULES) $(FULL_MODULES)
-
-LOCAL_SRCS += $(foreach dir,$(LOCAL_MODULES),$(wildcard $(dir)/*.c))
-LOCAL_CHS += $(foreach dir,$(LOCAL_MODULES),$(wildcard $(dir)/*.h))
-
-LOCAL_FLAGS += -I./fs/proc
diff --git a/tools/build/config.mk b/tools/build/config.mk
deleted file mode 100644
index eb4e6f0ef7b12e7151ede1c349d78469176430ee..0000000000000000000000000000000000000000
--- a/tools/build/config.mk
+++ /dev/null
@@ -1,60 +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)
-
-##### 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/tools/build/mk/bepbuildtime.conf b/tools/build/mk/bepbuildtime.conf
deleted file mode 100644
index c262af18319040a88c08f9fb2e47adcf6baa9ec7..0000000000000000000000000000000000000000
--- a/tools/build/mk/bepbuildtime.conf
+++ /dev/null
@@ -1,4 +0,0 @@
-[timestamp]
-uts=2020-01-04,16:54:14
-second=2020-01-04,16:54:14
-third=2020-01-04,16:54:14
\ No newline at end of file
diff --git a/tools/build/mk/dynload.mk b/tools/build/mk/dynload.mk
deleted file mode 100644
index 5b802f30e951bd7862bfad399e72fdbce4d3ad7f..0000000000000000000000000000000000000000
--- a/tools/build/mk/dynload.mk
+++ /dev/null
@@ -1,34 +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.
-
-DYNLOADTESTDIR := $(LITEOSTOPDIR)/test/kernel/sample/kernel_extend/dynload
-export DYNLOADTESTDIR
-
-##### command to test dynload #####
--include $(DYNLOADTESTDIR)/test_dynload.mk
diff --git a/tools/build/mk/get_compiler_path.sh b/tools/build/mk/get_compiler_path.sh
deleted file mode 100755
index 191e90462663d72a408b3341bc39235235a5758e..0000000000000000000000000000000000000000
--- a/tools/build/mk/get_compiler_path.sh
+++ /dev/null
@@ -1,59 +0,0 @@
-#!/bin/bash
-#
-# 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.
-
-set -e
-declare CROSS_COMPILER="$1"
-declare HMOS_TOP_DIR="$2"
-declare gcc_path=${HMOS_TOP_DIR}/../../prebuilts/gcc/linux-x86/arm/arm-linux-ohoseabi-gcc
-declare windows_gcc_path=${HMOS_TOP_DIR}/../../prebuilts/gcc/win-x86/arm/arm-linux-ohoseabi-gcc
-function get_compiler_path()
-{
-    local system=$(uname -s)
-    local user_gcc="${CROSS_COMPILER}"gcc
-    local gcc_install_path=$(which "${user_gcc}")
-
-    if [ "$system" != "Linux" ] ; then
-        if [ -e "${windows_gcc_path}" ] ; then
-            gcc_install_path=$windows_gcc_path
-        else
-            gcc_install_path=$(dirname $gcc_install_path)/../
-        fi
-    else
-        if [ -e "${gcc_path}" ] ; then
-            gcc_install_path=$gcc_path
-        else
-            gcc_install_path=$(dirname $gcc_install_path)/../
-        fi
-    fi
-
-    echo "$gcc_install_path"
-}
-get_compiler_path
diff --git a/tools/build/mk/get_llvm_compiler_path.sh b/tools/build/mk/get_llvm_compiler_path.sh
deleted file mode 100755
index 243c984bda21209f8a05fe6862da081bf5d70220..0000000000000000000000000000000000000000
--- a/tools/build/mk/get_llvm_compiler_path.sh
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/bin/bash
-#
-# 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.
-
-set -e
-declare TEMP="$1"
-declare TEMP2="$2"
-declare llvm_path_linux=${TEMP2}/../../prebuilts/clang/ohos/linux-x86_64/llvm
-declare llvm_path_windows=${TEMP2}/../../prebuilts/clang/ohos/windows-x86_64/llvm
-function get_compiler_path()
-{
-    local system=$(uname -s)
-    local user_clang=clang
-    local clang_install_path=$(which "${user_clang}")
-    if [ "$system" == "Linux" ] ; then
-        if [ -e "${llvm_path_linux}" ] ; then
-            echo "${llvm_path_linux}"
-        elif [ -n "${clang_install_path}" ] ; then
-            clang_install_path=$(dirname ${clang_install_path})/../
-            echo "${clang_install_path}"
-        else
-            echo "WARNING:Set llvm/bin path in PATH."
-        fi
-    else
-        if [ -e "${llvm_path_windows}" ] ; then
-            echo "${llvm_path_windows}"
-        elif [ -n "${clang_install_path}" ] ; then
-            clang_install_path=$(dirname ${clang_install_path})/../
-            echo "${clang_install_path}"
-        else
-            echo "WARNING:Set llvm/bin path in PATH."
-        fi
-    fi
-}
-get_compiler_path
diff --git a/tools/build/mk/los_config.mk b/tools/build/mk/los_config.mk
index 5cf6b2085d2b1139609c86b25270638bf10a8e95..9386978caf8e11b5889324c0f2db7aa77cf9ee3d 100644
--- a/tools/build/mk/los_config.mk
+++ b/tools/build/mk/los_config.mk
@@ -27,17 +27,7 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-CONFIG_FILE ?= $(LITEOSTOPDIR)/.config
--include $(CONFIG_FILE)
-LOSCFG_BOARD_CONFIG_PATH := $(LOSCFG_BOARD_CONFIG_PATH:"%"=%)
-ifeq ($(wildcard $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH) $(LOSCFG_BOARD_CONFIG_PATH)),)
-LOSCFG_BOARD_CONFIG_PATH := $(LOSCFG_BOARD_CONFIG_PATH:%/config/board=%/board)
-endif
-ifeq ($(LOSCFG_COMPILER_HIMIX_32), y)
-CROSS_COMPILE := arm-linux-ohoseabi-
-else ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-CROSS_COMPILE := llvm-
-endif
+-include $(LITEOS_CONFIG_FILE)
 
 HIDE := @
 CC  :=
@@ -52,13 +42,10 @@ NM :=
 MKDIR = mkdir
 OBJ_MKDIR = if [ ! -d $(dir $@) ]; then mkdir -p $(dir $@); fi
 RM = -rm -rf
-ECHO = echo
 ifeq ($(OS),)
 OS := $(shell uname -s)
 export OS
 endif
-COMPILE_NAME := $(patsubst %-,%,$(CROSS_COMPILE))
-VERSION_NUM :=
 
 ARFLAGS  := cr
 
@@ -87,7 +74,6 @@ LITEOS_PLATFORM_INCLUDE :=
 LITEOS_CXXINCLUDE :=
 LITEOS_LD_PATH :=
 LITEOS_LD_SCRIPT :=
-LITEOS_MK_PATH :=
 ## c as cxx ld flags ##
 LITEOS_ASFLAGS :=
 LITEOS_CFLAGS :=
@@ -104,26 +90,33 @@ LIB_SUBDIRS :=
 ifeq ($(LITEOSTHIRDPARTY),)
 LITEOSTHIRDPARTY := $(LITEOSTOPDIR)/../../third_party
 endif
+LOSCFG_BOARD_CONFIG_PATH := $(LOSCFG_BOARD_CONFIG_PATH:"%"=%)
+ifeq ($(wildcard $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH) $(LOSCFG_BOARD_CONFIG_PATH)),)
+LOSCFG_BOARD_CONFIG_PATH := $(LOSCFG_BOARD_CONFIG_PATH:%/config/board=%/board)
+endif
+ifeq ($(LOSCFG_COMPILER_HIMIX_32), y)
+CROSS_COMPILE ?= arm-linux-ohoseabi-
+LITEOS_COMPILER_PATH ?= $(LITEOSTOPDIR)/../../prebuilts/gcc/linux-x86/arm/arm-linux-ohoseabi-gcc/bin/
+else ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
+CROSS_COMPILE ?= llvm-
+LITEOS_COMPILER_PATH ?= $(LITEOSTOPDIR)/../../prebuilts/clang/ohos/linux-x86_64/llvm/bin/
+endif
+ifeq ($(wildcard $(LITEOS_COMPILER_PATH)),)
+LITEOS_COMPILER_PATH := $(patsubst %/$(CROSS_COMPILE)as,%/,$(shell which $(CROSS_COMPILE)as))
+endif
 LITEOS_PLATFORM := $(LOSCFG_PLATFORM:"%"=%)
 ifeq ($(OUTDIR),)
-OUT = $(LITEOSTOPDIR)/out/$(LITEOS_PLATFORM)
-LITEOS_TARGET_DIR = $(OUT)
-KERNEL_COMPILE_ONLY = y
+OUT = $(LITEOSTOPDIR)/out/$(LOSCFG_PRODUCT_NAME:"%"=%)
 else
 OUT = $(OUTDIR)
-LITEOS_TARGET_DIR = $(OUT)/../../../
-KERNEL_COMPILE_ONLY = n
 endif
 BUILD  = $(OUT)/obj
-MK_PATH  = $(LITEOSTOPDIR)/tools/build/mk
 CXX_PATH  = $(LITEOSTOPDIR)/lib/cxxstl
 JFFS_PATH  = $(LITEOSTOPDIR)/fs/jffs2
 LITEOS_SCRIPTPATH ?= $(LITEOSTOPDIR)/tools/scripts
-LITEOS_MENUCONFIG_H ?= $(LITEOSTOPDIR)/config.h
-LOSCFG_ENTRY_SRC    = $(LITEOSTOPDIR)/platform/los_config.c
 
 ### include variable
-MODULE = $(MK_PATH)/module.mk
+MODULE = $(LITEOSTOPDIR)/tools/build/mk/module.mk
 LITEOS_CMACRO      += -D__LITEOS__ -DSECUREC_IN_KERNEL=0
 AS_OBJS_LIBC_FLAGS  = -D__ASSEMBLY__
 
@@ -154,14 +147,8 @@ endif
 ####################################### Kernel Option Begin ###########################################
 LITEOS_BASELIB += -lbase
 LIB_SUBDIRS       += kernel/base
-LITEOS_KERNEL_INCLUDE   := -I $(LITEOSTOPDIR)/kernel/include
-
-LITEOS_BASELIB += -lbsp_config
-LIB_SUBDIRS += $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH)
-
-ifeq ($(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7), y)
-LITEOS_PLATFORM_INCLUDE += -I $(LITEOSTOPDIR)/../../$(LOSCFG_BOARD_CONFIG_PATH)/include/
-endif
+LITEOS_KERNEL_INCLUDE   := -I $(LITEOSTOPDIR)/kernel/include \
+                           -I $(LITEOSTOPDIR)/kernel/base/include
 
 ifeq ($(LOSCFG_KERNEL_CPUP), y)
     LITEOS_BASELIB   += -lcpup
@@ -510,38 +497,30 @@ endif
 ############################# Security Option End ##############################
 
 ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
-ifeq ($(LITEOS_COMPILER_PATH),)
-LITEOS_COMPILER_PATH := $(shell $(LITEOSTOPDIR)/tools/build/mk/get_llvm_compiler_path.sh "$(CROSS_COMPILE)" "$(LITEOSTOPDIR)")
-export LITEOS_COMPILER_PATH
-endif
-CC  = $(LITEOS_COMPILER_PATH)/bin/clang
-AS  = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)as
-AR  = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)ar
-LD  = $(LITEOS_COMPILER_PATH)/bin/ld.lld
-GPP = $(LITEOS_COMPILER_PATH)/bin/clang++
-OBJCOPY = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)objcopy -R .bss
-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
+CC  = $(LITEOS_COMPILER_PATH)clang
+AS  = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)as
+AR  = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)ar
+LD  = $(LITEOS_COMPILER_PATH)ld.lld
+GPP = $(LITEOS_COMPILER_PATH)clang++
+OBJCOPY = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)objcopy -R .bss
+OBJDUMP = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)objdump
+SIZE = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)size
+NM = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)nm
+STRIP = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)strip
 LLVM_TARGET := arm-liteos
 LLVM_EXTRA_OPTS := -target $(LLVM_TARGET) -fms-extensions -Wno-address-of-packed-member
 LLVM_EXTRA_LD_OPTS := -fuse-ld=lld --rtlib=compiler-rt
 else
-ifeq ($(LITEOS_COMPILER_PATH),)
-LITEOS_COMPILER_PATH := $(shell $(LITEOSTOPDIR)/tools/build/mk/get_compiler_path.sh "$(CROSS_COMPILE)" "$(LITEOSTOPDIR)")
-export LITEOS_COMPILER_PATH
-endif
-CC  = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)gcc
-AS  = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)as
-AR  = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)ar
-LD  = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)ld
-GPP = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)g++
-OBJCOPY = $(LITEOS_COMPILER_PATH)/bin/$(CROSS_COMPILE)objcopy
-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
+CC  = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)gcc
+AS  = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)as
+AR  = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)ar
+LD  = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)ld
+GPP = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)g++
+OBJCOPY = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)objcopy
+OBJDUMP = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)objdump
+SIZE = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)size
+NM = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)nm
+STRIP = $(LITEOS_COMPILER_PATH)$(CROSS_COMPILE)strip
 endif
 
 FP = -fno-omit-frame-pointer
@@ -552,7 +531,7 @@ LITEOS_CXXOPTS_BASE  += -std=c++11 -nostdlib -nostdinc -nostdinc++ -fexceptions
 LITEOS_EXTKERNEL_INCLUDE   := $(LITEOS_CPPSUPPORT_INCLUDE) $(LITEOS_DYNLOAD_INCLUDE) \
                               $(LITEOS_TICKLESS_INCLUDE)   $(LITEOS_TRACE_INCLUDE) \
                               $(LITEOS_VDSO_INCLUDE)       $(LITEOS_LITEIPC_INCLUDE) \
-                              $(LITEOS_PIPE_INCLUDE)
+                              $(LITEOS_PIPE_INCLUDE)       $(LITEOS_CPUP_INCLUDE)
 LITEOS_COMPAT_INCLUDE      := $(LITEOS_POSIX_INCLUDE) $(LITEOS_LINUX_INCLUDE) \
                               $(LITEOS_BSD_INCLUDE)
 LITEOS_FS_INCLUDE          := $(LITEOS_VFS_INCLUDE)        $(LITEOS_FAT_CACHE_INCLUDE) \
@@ -636,12 +615,6 @@ 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_INCLUDE)
 
 LITEOS_COPTS_NODEBUG    := $(LITEOS_NODEBUG) $(LITEOS_COPTS_BASE) $(LITEOS_COPTS_EXTRA)
diff --git a/tools/build/mk/module.mk b/tools/build/mk/module.mk
index 7391fe0379f827bb69caedf1b645691cd0846d7f..7242087e1f40265131133fc97af0c811550dc7c4 100644
--- a/tools/build/mk/module.mk
+++ b/tools/build/mk/module.mk
@@ -27,14 +27,7 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-ifeq ($(OS), Linux)
 OBJOUT := $(BUILD)$(dir $(subst $(LITEOSTOPDIR),,$(shell pwd)))$(MODULE_NAME)
-LOCAL_PWD := $(shell pwd)
-else
-TEMPLITEOSTOPDIR:=$(shell cygpath -u $(LITEOSTOPDIR))
-OBJOUT := $(BUILD)$(dir $(subst $(TEMPLITEOSTOPDIR),,$(shell pwd)))$(MODULE_NAME)
-LOCAL_PWD := $(shell cygpath -m $(shell pwd))
-endif
 
 ifeq ($(LOCAL_SO), y)
 LIBSO := $(OUT)/lib/lib$(MODULE_NAME).so
@@ -59,7 +52,7 @@ LOCAL_ASMOBJS := $(patsubst %.S,$(OBJOUT)/%.o,$(LOCAL_ASMSRCS))
 LOCAL_ASMOBJS2 := $(patsubst %.s,$(OBJOUT)/%.o,$(LOCAL_ASMSRCS2))
 LOCAL_CCOBJS := $(patsubst %.cc,$(OBJOUT)/%.o,$(LOCAL_CCSRCS))
 
-LOCAL_OBJS := $(LOCAL_COBJS) $(LOCAL_CPPOBJS) $(LOCAL_ASMOBJS) $(LOCAL_ASMOBJS2)$(LOCAL_CCOBJS)
+LOCAL_OBJS := $(LOCAL_COBJS) $(LOCAL_CPPOBJS) $(LOCAL_ASMOBJS) $(LOCAL_ASMOBJS2) $(LOCAL_CCOBJS)
 
 LOCAL_CGCH := $(patsubst %.h,%.h.gch,$(LOCAL_CHS))
 LOCAL_CPPGCH := $(patsubst %.h,%.h.gch,$(LOCAL_CPPHS))
diff --git a/tools/scripts/make_rootfs/releaseinfo.sh b/tools/scripts/make_rootfs/releaseinfo.sh
index f15bb75d09af9917277f6ce383eec4cfc177e613..6c247303ff544a54aadd6d6af90659e867f9cbf4 100755
--- a/tools/scripts/make_rootfs/releaseinfo.sh
+++ b/tools/scripts/make_rootfs/releaseinfo.sh
@@ -28,20 +28,10 @@
 # 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.
-set -e
-
-if [ $# -ne 3 ];then
-    exit 1
-fi
 
 VERSION=$1
 ROOTFS_DIR=$2
-OUT_DIR=$3
 RELEASE_TIME=$(date "+%Y-%m-%d %H:%M:%S")
 
 echo VERSION=\"${VERSION}\" > ${ROOTFS_DIR}/etc/os-release
 echo RELEASE_TIME=\"${RELEASE_TIME}\" >> ${ROOTFS_DIR}/etc/os-release
-if [ ! -d ${OUT_DIR}etc ]; then
-    mkdir -p ${OUT_DIR}etc
-fi
-cp ${ROOTFS_DIR}/etc/os-release ${OUT_DIR}etc
diff --git a/tools/scripts/make_rootfs/rootfsdir.sh b/tools/scripts/make_rootfs/rootfsdir.sh
index cb9f260ea2e29388c50a4beb7562cc8890d048fa..eea8604dfa68cbf1cf06dae6124f5da3769e6479 100755
--- a/tools/scripts/make_rootfs/rootfsdir.sh
+++ b/tools/scripts/make_rootfs/rootfsdir.sh
@@ -32,28 +32,18 @@ set -e
 
 OUT=$1
 ROOTFS_DIR=$2
-OUT_DIR=$3
 BIN_DIR=${OUT}/bin
 LIB_DIR=${OUT}/musl
 ETC_DIR=${OUT}/etc
-NEED_COPYTO_OUTDIR=(shell toybox mksh tftp)
 
 mkdir -p ${ROOTFS_DIR}/bin ${ROOTFS_DIR}/lib ${ROOTFS_DIR}/usr/bin ${ROOTFS_DIR}/usr/lib ${ROOTFS_DIR}/etc \
 ${ROOTFS_DIR}/app ${ROOTFS_DIR}/data ${ROOTFS_DIR}/proc ${ROOTFS_DIR}/dev ${ROOTFS_DIR}/data/system ${ROOTFS_DIR}/data/system/param \
-${ROOTFS_DIR}/system ${ROOTFS_DIR}/system/internal ${ROOTFS_DIR}/system/external ${OUT_DIR}/bin ${OUT_DIR}/libs ${OUT_DIR}/etc
+${ROOTFS_DIR}/system ${ROOTFS_DIR}/system/internal ${ROOTFS_DIR}/system/external
 if [ -d "${BIN_DIR}" ] && [ "$(ls -A "${BIN_DIR}")" != "" ]; then
     cp -f ${BIN_DIR}/* ${ROOTFS_DIR}/bin
-    for el in ${NEED_COPYTO_OUTDIR[@]}
-    do
-        if [ -e ${BIN_DIR}/$el ] && [ "${BIN_DIR}/$el" != "${OUT_DIR}/bin/$el" ]; then
-            cp -u ${BIN_DIR}/$el ${OUT_DIR}/bin/$el
-        fi
-    done
 fi
 cp -f ${LIB_DIR}/* ${ROOTFS_DIR}/lib
-cp -u ${LIB_DIR}/* ${OUT_DIR}/libs
 
 if [ -e ${ETC_DIR}/.mkshrc ]; then
 cp -f ${ETC_DIR}/.mkshrc ${ROOTFS_DIR}/etc
-cp -u ${ETC_DIR}/.mkshrc ${OUT_DIR}/etc
 fi