Makefile模板

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CROSS_COMPILE ?= arm-linux-gnueabihf-
CC  		  := $(CROSS_COMPILE)gcc
CXX 		  := $(CROSS_COMPILE)g++
AR  		  := $(CROSS_COMPILE)ar
LD  		  := $(CROSS_COMPILE)ld
OBJCOPY 	  := $(CROSS_COMPILE)objcopy
OBJDUMP 	  := $(CROSS_COMPILE)objdump

ARFLAGS       := rcs
DEBUG         := -g
FLAGS	      := -Wall -nostdlib -c -O2 -fno-builtin
CFLAGS        := $(FLAGS) -std=c99 
CXXFLAGS      := $(FLAGS) -std=c++11
SFLAGS        := $(FLAGS)
LDFLAGS       := -Timx6ul.lds
LIBS          := -lgcc
LIB_PATH      := -L /home/chengs/imx6ull/tool/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/lib/gcc/arm-linux-gnueabihf/4.9.4
OUTPUT        := /var/tmp/output

SOURCE_DIR	  += imx6ul
SOURCE_DIR	  += project
SOURCE_DIR	  += bsp/clk
SOURCE_DIR	  += bsp/delay
SOURCE_DIR	  += bsp/led
SOURCE_DIR	  += bsp/beep
SOURCE_DIR	  += bsp/gpio
SOURCE_DIR	  += bsp/key
SOURCE_DIR	  += bsp/int
SOURCE_DIR	  += bsp/exti
SOURCE_DIR	  += bsp/epittimer
SOURCE_DIR	  += bsp/uart

INCLUDES      := $(patsubst %, -I %, $(SOURCE_DIR))
SOURCES       += $(foreach dir, $(SOURCE_DIR), $(wildcard $(dir)/*.S))
SOURCES       += $(foreach dir, $(SOURCE_DIR), $(wildcard $(dir)/*.c))
SOURCES       += $(foreach dir, $(SOURCE_DIR), $(wildcard $(dir)/*.cpp))
OBJS          := $(patsubst %.c, $(OUTPUT)/%.o, $(SOURCES))
OBJS          := $(patsubst %.cpp, $(OUTPUT)/%.o, $(OBJS))
OBJS          := $(patsubst %.S, $(OUTPUT)/%.o, $(OBJS))

VERSION 	  := 0.1
PROJECT_NAME  := app
TARGET 	      := $(OUTPUT)/$(PROJECT_NAME)
STATIC_LIB    := $(OUTPUT)/lib$(PROJECT_NAME).a.$(VERSION)
SHARED_LIB    := $(OUTPUT)/lib$(PROJECT_NAME).so.$(VERSION)

all: clean $(TARGET)
	$(OBJCOPY) -O binary -S $(TARGET) $(TARGET).bin
	$(OBJDUMP) -D -m arm $(TARGET) > project/app.dis
	imxdownload $(TARGET).bin /dev/usbSdCard
	@rm -rf $(TARGET).dis $(TARGET).bin load.imx

$(TARGET): $(OBJS)
	$(LD) $(LDFLAGS) -o $(TARGET) $(OBJS) $(LIBS) $(LIB_PATH) 

$(STATIC_LIB): $(OBJS)
	$(AR) $(ARFLAGS) $(STATIC_LIB) $(OBJS)

$(SHARED_LIB): $(OBJS)
	$(CC) -fPIC -shared -o $(SHARED_LIB) $(OBJS)

$(OUTPUT)/%.o: %.c
	@echo $(CC) $<
	@mkdir -p $(dir $@)
	@$(CC) $(CFLAGS) $(DEBUG) $(INCLUDES) -o $@ $<

$(OUTPUT)/%.o: %.cpp
	@echo $(CXX) $<
	@mkdir -p $(dir $@)
	@$(CXX) $(CXXFLAGS) $(DEBUG) $(INCLUDES) -o $@ $<

$(OUTPUT)/%.o: %.S
	@echo $(CC) $<
	@mkdir -p $(dir $@)
	@$(CC) $(SFLAGS) $(DEBUG) -o $@ $<

.PHONY: clean all print

clean:
	rm -rf $(OUTPUT)

print:
	@echo $(SOURCES)
	@echo $(OBJS)
	@echo $(CFLAGS)