针对文件系统上的任何内核源代码树编译树外内核模块 [英] Compiling out-of-tree kernel module against any kernel source tree on the filesystem
问题描述
我正在尝试针对文件系统上的任何源代码树编译模块,但是我在 Makefile 上遇到了问题.这是我针对指定内核的原始 Makefile:
I am trying to compile a module against any source tree on the file system but I am having trouble with the Makefile. This was the original Makefile I had against the kernel specified:
obj-m += new-mod.o
all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
这个 Makefile 可以正确编译,但目标是让它针对任何源代码树进行编译.我试过:
This Makefile would compile correctly, but goal is to have it compile against any source tree. I have tried just:
obj-m += new-mod.o
我认为所有:"是假设的,但我收到错误:
I thought that "all:" is assumed but I get error:
make: *** No targets. Stop.
我还添加了:
all:
除了错误信息外没有区别的Makefile:
to the Makefile with no difference except for error message:
make: Nothing to be done for `all'
我尝试了很多文档,但没有成功.如有任何帮助,我将不胜感激.
I have tried a lot of documentation but no luck. I would greatly appreciate any help.
推荐答案
目标是让它针对任何源代码树进行编译
你可以提供一个编译的源代码路径
只需替换make -C/lib/modules/$(shell uname -r)/build M=$PWD modules
有了这个
make -C
make -C/home/vinay/linux-3.9 M=$PWD 模块
试试下面的makefile
try below makefile
Makefile –
Makefile –
# if KERNELRELEASE is defined, we've been invoked from the
# kernel build system and can use its language.
ifneq (${KERNELRELEASE},)
obj-m := new-mod.o
# Otherwise we were called directly from the command line.
# Invoke the kernel build system.
else
KERNEL_SOURCE := /usr/src/linux
PWD := $(shell pwd)
default:
${MAKE} -C ${KERNEL_SOURCE} SUBDIRS=${PWD} modules
clean:
${MAKE} -C ${KERNEL_SOURCE} SUBDIRS=${PWD} clean
endif
在上面你可以改变 KERNEL_SOURCE :=/usr/src/linux
-->to.--> 你的 sr-code KERNEL_SOURCE :=
In above you can change KERNEL_SOURCE := /usr/src/linux
-->to.--> your sr-code KERNEL_SOURCE := <path to compiled-src-code>
欲了解更多信息,请在下面找到喜欢
for further info find below liks
在构建内核模块时为什么我们需要/lib/modules 吗?
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