无法编译内核模块 [英] Unable to compile the kernel module

问题描述

我正在尝试在ubuntu中构建一个简单的内核，以下是在执行此操作时遇到的错误.

I am trying to build a simple kernel in ubuntu,following are the errors getting while doing this.

make -C /lib/modules/3.13.0-52-generic/build M= modules
make[1]: Entering directory `/usr/src/linux-headers-3.13.0-52-generic'
make[1]: Makefile: No such file or directory
make[1]: *** No rule to make target `Makefile'.  Stop.
make[1]: Leaving directory `/usr/src/linux-headers-3.13.0-52-generic'
make: *** [all] Error 2

我的Make文件:

obj-m := module1.o 
KERNEL = $(shell uname -r)
all: 
    make -C /lib/modules/$(KERNEL)/build M=$(PWD) modules
clean: 
    make -C /lib/modules/$(KERNEL)/build M=$(PWD) clean

有人可以帮我吗?

注意:我已经下载了内核源代码

Note: I have already downloaded the kernel source code

推荐答案

使用前，应在Makefile中设置PWD变量.例如

You should set PWD variable in your Makefile before using it. E.g.

PWD = $(shell pwd)

更新: 另外，您的Makefile会混合两种模式的行:KBuild模式(obj-m := module1.o)和普通的makefile模式(所有其他行).您应该区分模式(使用if)或对两种模式使用两个不同的文件:

UPDATE: Also, your Makefile mix lines for two modes: KBuild mode (obj-m := module1.o) and common makefile mode(all other lines). Your should either distinguish modes(using if) or use two different files for two modes:

Makefile:

KERNEL = $(shell uname -r)
PWD = $(shell pwd)
all: 
    make -C /lib/modules/$(KERNEL)/build M=$(PWD) modules
clean: 
    make -C /lib/modules/$(KERNEL)/build M=$(PWD) clean

Kbuild:

obj-m := module1.o

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