一个简单的Makefile

NAME = led

BIN = $(NAME).bin

SRC =$(NAME).S

OBJ =$(NAME).o

ELF =$(NAME)

CC=arm-linux-gcc

LD=arm-linux-ld

CFLAGS=-march=armv5te

LDFLAGS=-nostartfiles -nostdlib

OBJCOPY=arm-linux-objcopy

ENTRY=0x20008000

START=main

$(BIN):$(SRC)

$(CC) $(CFLAGS) -c $(SRC) -o $(OBJ)

$(LD) -e $(START) -Ttext=$(ENTRY) $(LDFLAGS)

$(OBJCOPY) -O binary $(ELF) $(BIN)

rm -rf /tftpboot/$(BIN)

cp $(BIN) /tftpboot/

clean：

rm -f $(OBJ) $(ELF) $(BIN)