linux编译内核模块Makefile

ifneq ($(KERNELRELEASE),)
obj-m:=hello.o
else
KERNELDIR:=/lib/modules/$(shell uname -r)/build
PWD:=$(shell pwd)
default:
$(MAKE) -C $(KERNELDIR)  M=$(PWD) modules
clean:
rm -rf *.o *.mod.c *.mod.o *.ko
endif

obj-m +=hello.o
all:
make -C /usr/src/linux-headers-`uname -r` M=`pwd` modules #编译
clean:
make -C /usr/src/linux-headers-`uname -r` M=`pwd` clean  #清理

mymodule-objs := file1.o file2.o ...
obj-m := mymodule.o