如何安排一个Makefile来编译带有多个.c文件的内核模块? [英] How to arrange a Makefile to compile a kernel module with multiple .c files?

问题描述

如何安排Makefile来编译带有多个.c文件的内核模块?

How to arrange a Makefile to compile a kernel module with multiple .c files?

这是我当前的Makefile.它是由 KDevelop

Here is my current Makefile. It was auto generated by KDevelop

TARGET = nlb-driver
OBJS = nlb-driver.o
MDIR = drivers/misc

EXTRA_CFLAGS = -DEXPORT_SYMTAB
CURRENT = $(shell uname -r)
KDIR = /lib/modules/$(CURRENT)/build
PWD = $(shell pwd)
DEST = /lib/modules/$(CURRENT)/kernel/$(MDIR)

obj-m += $(TARGET).o

default:
    make -C $(KDIR) M=$(PWD) modules

$(TARGET).o: $(OBJS)
    $(LD) $(LD_RFLAG) -r -o $@ $(OBJS)

ifneq (,$(findstring 2.4.,$(CURRENT)))
install:
    su -c "cp -v $(TARGET).o $(DEST) && /sbin/depmod -a"
else
install:
    su -c "cp -v $(TARGET).ko $(DEST) && /sbin/depmod -a"
endif

clean:
    -rm -f *.o *.ko .*.cmd .*.flags *.mod.c
    make -C $(KDIR) M=$(PWD) clean

-include $(KDIR)/Rules.make

推荐答案

在我的情况下，该项目包含6个文件:

In my case the project consists of 6 files:

• monter_main.c，monter_main.h
• monter_cdev.c，monter_cdev.h
• monter_pci.c，monter_pci.h

• monter_main.c, monter_main.h
• monter_cdev.c, monter_cdev.h
• monter_pci.c, monter_pci.h

monter_main.c是我模块的主文件.

monter_main.c is the main file of my module.

请记住，除非您在该文件中包含所有代码，否则您不应拥有与要构建的模块同名的文件(例如monter.c和monter.ko).

Remember that you shouldn't have a file with the same name as the module you're trying to build (e.g. monter.c and monter.ko) unless you've got all code in that one file.

这是我的Makefile:

Here are my Makefiles:

• Makefile

KDIR ?= /lib/modules/`uname -r`/build

default:
    $(MAKE) -C $(KDIR) M=$$PWD

install:
    $(MAKE) -C $(KDIR) M=$$PWD modules_install

clean:
    $(MAKE) -C $(KDIR) M=$$PWD clean

Kbuild

obj-m := monter.o
monter-objs := monter_main.o monter_cdev.o monter_pci.o

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