makefile

主板上提供一个可按分或秒计时的

# Comment/uncomment the following line to disable/enable debugging
#DEBUG = y

KERNEL_NAME := $(shell uname -r)

#Install dir
INSTALLDIR = /lib/modules/$(KERNEL_NAME)/kernel/drivers/char

# Add your debugging flag (or not) to CFLAGS
ifeq ($(DEBUG),y)
  DEBFLAGS = -O -g -DWDT_DEBUG # "-O" is needed to expand inlines
else
  DEBFLAGS = -O2
endif
CFLAGS += $(DEBFLAGS)
CFLAGS += -Wall -DMODULE -pipe -DLINUX -D__KERNEL__   
KERNELDIR := /lib/modules/$(KERNEL_NAME)/build
CFLAGS += -I$(KERNELDIR)/include -I.

#different linux version
K_VERSION:=$(shell uname -r | cut -c1-3 | sed 's/2\.[56]/2\.6/')
ifeq ($(K_VERSION), 2.6)
#kernel 2.6
TARGET = w83627hf_wdt.ko
wdt-objs := w83627hf_wdt.o
obj-m := w83627hf_wdt.o
all:
	$(MAKE) -C $(KERNELDIR) M=$(shell pwd) modules
else
#kernel 2.4
OBJS = w83627hf_wdt.o
TARGET = w83627hf_wdt.o
SRC = w83627hf_wdt.o
all: $(OBJS)
wdt.o: $(SRC:.c=.o)
	$(LD) -r $^ -o $@
endif

.PHONY: clean install uninstall test

test:w83627hf_test
w83627hf_test:w83627hf_test.o

install:
	install -D $(TARGET) $(INSTALLDIR)/$(TARGET)
	
uninstall:
	rm -rf $(INSTALLDIR)/$(TARGET)

clean:
	rm -rf *.o *.ko *.symvers *.mod.c .*.cmd .tmp_versions .*.swp wdt3114_test.o w83627hf_test