关于makefile编译gcc程序的写法简单只看4点就会了芯片i5,S3C2440,LPC1759-58-56-54-52-51的makefile模版

1.选择哪个编译器CC。比如CC:=gcc

2.使用的cpu类型CFLAGS1,CFLAGS2。这个错了会有提示，我虚拟器就用corei7就OK

cc1: error: bad value (‘armv4t’) for ‘-march=’ switch
cc1: note: valid arguments to ‘-march=’ switch are: nocona core2 nehalem corei7 westmere sandybridge corei7-avx ivybridge core-avx-i haswell core-avx2 broadwell skylake skylake-avx512 bonnell atom silvermont slm knl x86-64 eden-x2 nano nano-1000 nano-2000 nano-3000 nano-x2 eden-x4 nano-x4 k8 k8-sse3 opteron opteron-sse3 athlon64 athlon64-sse3 athlon-fx amdfam10 barcelona bdver1 bdver2 bdver3 bdver4 znver1 btver1 btver2

3.引导文件sourmain，即有main函数的文件。比如sourmain=uart_main.c

4.编译生成输出的文件名exes。比如exes=out

#号开头的是注释

运行一下./out

成功了。

以下范例中

main函数所在文件uart_main.c

输出可执行文件out,outarm47,outarm433

范例(i5模版，windows 里装linux虚拟机)

CC:=gcc
#CC:=/usr/arm/arm-linaro-arm-linux-gnueabihf-4.7/bin/arm-linux-gnueabihf-gcc
#CC:=/usr/arm/arm-none-linux-gnueabi-4.3.3/4.3.3/bin/arm-none-linux-gnueabi-gcc
#CC:=gcc
AR:=ar -rc
#CFLAGS1:=-Wall -g  -liconv   -lpthread   -lrt -ldl -march=armv4t -c
#CFLAGS2:=-Wall -g  -lrt -ldl  -lpthread  -march=armv4t  -lm -oCFLAGS1:=-Wall -g  -liconv   -lpthread   -lrt -ldl -march=corei7 -c
CFLAGS2:=-Wall -g  -lrt -ldl  -lpthread  -march=corei7  -lm -oSRC = $(wildcard src/*.c) $(wildcard src/lt5189/*.c)
SRO = $(wildcard src/*.o)  $(wildcard ./*.o)
sourmain=uart_main.c
objects =libkjdh.a
USERSRO=$(wildcard lib/tmp/*.o)
objectlib=$(wildcard lib/libkjdh.a)
exes=out
all:
#@echo $(SRC)
#$(CC) $(SRC) $(CFLAGS1)
#@echo $(SRO)
#@cp  $(SRO)  ./lib/tmp
#$(AR) $(objects) $(SRO)
#@cp   $(objects) ./lib
#$(CC) $(sourmain) $(objects) -L. -static -o $(exes)#   $(CC) $(sourmain) $(objectlib) $(CFLAGS2)  $(exes)$(CC) $(sourmain) $(SRC) $(CFLAGS2) $(exes)#@rm -vf $(SRO) $(objects)
lib: $(CC) $(SRC) $(CFLAGS1)@mkdir lib/tmp -p$(AR) $(objects) $(SRO)@mv   $(objects) ./lib
#   @cp   $(SRO)  ./lib/tmp @rm -vf $(SRO)@mv *.o ./lib/tmp
clean:@rm -vf  $(exes)@rm -vf $(objects)@rm -vf $(SRO)@rm -vf -R ./lib/

范例(模版S3C2440)

#CC:=/usr/arm/arm-linaro-arm-linux-gnueabihf-4.7/bin/arm-linux-gnueabihf-gccCC:=/usr/arm/arm-none-linux-gnueabi-4.3.3/4.3.3/bin/arm-none-linux-gnueabi-gcc
#CC:=gcc
AR:=ar -rc
CFLAGS1:=-Wall -g  -liconv   -lpthread   -lrt -ldl -march=armv4t -c
CFLAGS2:=-Wall -g  -lrt -ldl  -lpthread  -march=armv4t  -lm -o#CFLAGS1:=-Wall -g  -liconv   -lpthread   -lrt -ldl -march=armv7 -c
#CFLAGS2:=-Wall -g  -lrt -ldl  -lpthread  -march=armv7  -lm -oSRC = $(wildcard src/*.c) $(wildcard src/lt5189/*.c)
SRO = $(wildcard src/*.o)  $(wildcard ./*.o)
sourmain=uart_main.c
objects =libkjdh.a
USERSRO=$(wildcard lib/tmp/*.o)
objectlib=$(wildcard lib/libkjdh.a)
exes=outarm433
all:
#@echo $(SRC)
#$(CC) $(SRC) $(CFLAGS1)
#@echo $(SRO)
#@cp  $(SRO)  ./lib/tmp
#$(AR) $(objects) $(SRO)
#@cp   $(objects) ./lib
#$(CC) $(sourmain) $(objects) -L. -static -o $(exes)#   $(CC) $(sourmain) $(objectlib) $(CFLAGS2)  $(exes)$(CC) $(sourmain) $(SRC) $(CFLAGS2) $(exes)#@rm -vf $(SRO) $(objects)
lib: $(CC) $(SRC) $(CFLAGS1)@mkdir lib/tmp -p$(AR) $(objects) $(SRO)@mv   $(objects) ./lib
#   @cp   $(SRO)  ./lib/tmp @rm -vf $(SRO)@mv *.o ./lib/tmp
clean:@rm -vf  $(exes)@rm -vf $(objects)@rm -vf $(SRO)@rm -vf -R ./lib/

范例(模版LPC1759-58-56-54-52-51)

CC:=/usr/arm/arm-linaro-arm-linux-gnueabihf-4.7/bin/arm-linux-gnueabihf-gcc#CC:=/usr/arm/arm-none-linux-gnueabi-4.3.3/4.3.3/bin/arm-none-linux-gnueabi-gcc
#CC:=gcc
AR:=ar -rc
#CFLAGS1:=-Wall -g  -liconv   -lpthread   -lrt -ldl -march=armv4t -c
#CFLAGS2:=-Wall -g  -lrt -ldl  -lpthread  -march=armv4t  -lm -oCFLAGS1:=-Wall -g  -liconv   -lpthread   -lrt -ldl -march=armv7 -c
CFLAGS2:=-Wall -g  -lrt -ldl  -lpthread  -march=armv7  -lm -oSRC = $(wildcard src/*.c) $(wildcard src/lt5189/*.c)
SRO = $(wildcard src/*.o)  $(wildcard ./*.o)
sourmain=uart_main.c
objects =libkjdh.a
USERSRO=$(wildcard lib/tmp/*.o)
objectlib=$(wildcard lib/libkjdh.a)
exes=outarm47
all:
#@echo $(SRC)
#$(CC) $(SRC) $(CFLAGS1)
#@echo $(SRO)
#@cp  $(SRO)  ./lib/tmp
#$(AR) $(objects) $(SRO)
#@cp   $(objects) ./lib
#$(CC) $(sourmain) $(objects) -L. -static -o $(exes)#   $(CC) $(sourmain) $(objectlib) $(CFLAGS2)  $(exes)$(CC) $(sourmain) $(SRC) $(CFLAGS2) $(exes)#@rm -vf $(SRO) $(objects)
lib: $(CC) $(SRC) $(CFLAGS1)@mkdir lib/tmp -p$(AR) $(objects) $(SRO)@mv   $(objects) ./lib
#   @cp   $(SRO)  ./lib/tmp @rm -vf $(SRO)@mv *.o ./lib/tmp
clean:@rm -vf  $(exes)@rm -vf $(objects)@rm -vf $(SRO)@rm -vf -R ./lib/