diff --git a/bsp/qemu-vexpress-a9/Makefile b/bsp/qemu-vexpress-a9/Makefile
new file mode 100644
index 0000000000..f2efa4a561
--- /dev/null
+++ b/bsp/qemu-vexpress-a9/Makefile
@@ -0,0 +1,13 @@
+phony := all
+all:
+
+include config.mk
+
+ifneq ($(MAKE_LIB),1)
+TARGET := rtthread.elf
+include src.mk
+endif
+
+$(if $(strip $(RTT_ROOT)),,$(error RTT_ROOT not defined))
+
+include $(RTT_ROOT)/tools/rtthread.mk
diff --git a/tools/rtthread.mk b/tools/rtthread.mk
new file mode 100644
index 0000000000..bff3b2bbe2
--- /dev/null
+++ b/tools/rtthread.mk
@@ -0,0 +1,124 @@
+$(if $(strip $(TARGET)),,$(error TARGET not defined))
+$(if $(strip $(SRC_FILES)),,$(error No source files))
+$(if $(strip $(BSP_ROOT)),,$(error BSP_ROOT not defined))
+
+ifneq ($(MAKE_LIB),1)
+BUILD_DIR := $(BSP_ROOT)/build
+endif
+
+$(if $(strip $(BUILD_DIR)),,$(error BUILD_DIR not defined))
+
+RTT_BUILD_DIR := RT-THREAD_OBJS
+BSP_BUILD_DIR := BSP_OBJS
+
+#################
+
+define add_c_file
+$(eval COBJ := $(1:%.c=%.o)) \
+$(eval COBJ := $(COBJ:$(RTT_ROOT)/%=$(RTT_BUILD_DIR)/%)) \
+$(eval COBJ := $(COBJ:$(BSP_ROOT)/%=$(BSP_BUILD_DIR)/%)) \
+$(eval VPATH += $(dir $1)) \
+$(eval CSRCS += $1) \
+$(eval LOCALC := $(addprefix $(BUILD_DIR)/,$(COBJ))) \
+$(eval OBJS += $(LOCALC)) \
+$(if $(strip $(LOCALC)),$(eval $(LOCALC): $1
+	@if [ ! -d $$(@D) ]; then mkdir -p $$(@D); fi
+	@echo cc $$@
+	@$(CROSS_COMPILE)gcc $$(CFLAGS) -c $$< -o $$@))
+endef
+
+define add_cxx_file
+$(eval CXXOBJ := $(1:%.cpp=%.o)) \
+$(eval CXXOBJ := $(CXXOBJ:$(RTT_ROOT)/%=$(RTT_BUILD_DIR)/%)) \
+$(eval CXXOBJ := $(CXXOBJ:$(BSP_ROOT)/%=$(BSP_BUILD_DIR)/%)) \
+$(eval VPATH += $(dir $1)) \
+$(eval CXXSRCS += $1) \
+$(eval LOCALCXX := $(addprefix $(BUILD_DIR)/,$(CXXOBJ))) \
+$(eval OBJS += $(LOCALCXX)) \
+$(if $(strip $(LOCALCXX)),$(eval $(LOCALCXX): $1
+	@if [ ! -d $$(@D) ]; then mkdir -p $$(@D); fi
+	@echo cc $$@
+	@$(CROSS_COMPILE)g++ $$(CXXFLAGS) -c $$< -o $$@))
+endef
+
+define add_S_file
+$(eval SOBJ := $(1:%.S=%.o)) \
+$(eval SOBJ := $(SOBJ:$(RTT_ROOT)/%=$(RTT_BUILD_DIR)/%)) \
+$(eval SOBJ := $(SOBJ:$(BSP_ROOT)/%=$(BSP_BUILD_DIR)/%)) \
+$(eval VPATH += $(dir $1)) \
+$(eval SSRCS += $(1)) \
+$(eval LOCALS := $(addprefix $(BUILD_DIR)/,$(SOBJ))) \
+$(eval OBJS += $(LOCALS)) \
+$(if $(strip $(LOCALS)),$(eval $(LOCALS): $1
+	@if [ ! -d $$(@D) ]; then mkdir -p $$(@D); fi
+	@echo cc $$@
+	@$(CROSS_COMPILE)gcc $$(AFLAGS) -c $$< -o $$@))
+endef
+
+add_flg = $(eval CFLAGS += $1) \
+          $(eval AFLAGS += $1) \
+          $(eval CXXFLAGS += $1)
+
+add_inc = $(eval CFLAGS += -I$1) \
+          $(eval AFLAGS += -I$1) \
+          $(eval CXXFLAGS += -I$1)
+
+add_def = $(eval CFLAGS += -D$1) \
+          $(eval AFLAGS += -D$1) \
+          $(eval CXXFLAGS += -D$1)
+
+OBJS := 
+CSRCS := 
+CXXSRCS := 
+SSRCS := 
+VPATH :=
+
+CONFIG_FLG := $(strip $(EXTERN_FLAGS))
+$(if $(CONFIG_FLG),$(foreach f,$(CONFIG_FLG),$(call add_flg,$(f))))
+
+CONFIG_DEF := $(strip $(PROJECT_DEFS))
+$(if $(CONFIG_DEF),$(foreach d,$(CONFIG_DEF),$(call add_def,$(d))))
+
+CONFIG_INC := $(strip $(INCLUDE_PATH))
+$(if $(CONFIG_INC),$(foreach i,$(CONFIG_INC),$(call add_inc,$(i))))
+
+SRCS := $(strip $(filter %.c,$(SRC_FILES)))
+$(if $(SRCS),$(foreach f,$(SRCS),$(call add_c_file,$(f))))
+
+SRCS := $(strip $(filter %.cpp,$(SRC_FILES)))
+$(if $(SRCS),$(foreach f,$(SRCS),$(call add_cxx_file,$(f))))
+
+SRCS := $(strip $(filter %.S,$(SRC_FILES)))
+$(if $(SRCS),$(foreach f,$(SRCS),$(call add_S_file,$(f))))
+
+CFLAGS += $(CPPPATHS)
+CXXFLAGS += $(CPPPATHS)
+AFLAGS += $(CPPPATHS)
+
+CFLAGS += $(DEFINES)
+CXXFLAGS += $(DEFINES)
+AFLAGS += $(DEFINES)
+
+all: $(TARGET)
+
+ifeq ($(MAKE_LIB),1)
+$(TARGET): $(OBJS)
+	@echo ------------------------------------------------
+	@echo ar $(TARGET)
+	@$(CROSS_COMPILE)ar -rv $@ $(OBJS)
+else
+$(TARGET): $(OBJS) $(EXTERN_LIB)
+	@echo ------------------------------------------------
+	@echo link $(TARGET)
+	@$(CROSS_COMPILE)g++ -o $@ $(LFLAGS) $(OBJS) $(EXTERN_LIB) -lc -lm
+	@echo ------------------------------------------------
+	@$(CROSS_COMPILE)objcopy -O binary $@ rtthread.bin
+	@$(CROSS_COMPILE)size $@
+endif
+
+phony += clean
+clean:
+	@echo clean
+	@rm -rf $(TARGET) $(BUILD_DIR)
+
+.PHONY: $(phony)