如何“制作"商品修改驱动程序源代码后，现有的Linux内核模块驱动程序 [英] How to "make" existing Linux kernel module driver after modifying the driver source code

问题描述

我对Linux USB Wi-Fi卡驱动程序进行了一些小修改，以插入一些日志记录(printk语句).我松散地遵循有关如何重新编译/加载模块，其中指出我需要执行make才能构建.ko文件.工作目录(/usr/src/linux/drivers/net/wireless/rtl818x/rtl8187/)中有一个现有的Makefile，其内容为:

I have made some trivial modifications to a Linux USB Wi-Fi card driver to insert some logging (printk statements). I am loosely following a guide on how to recompile/load the module, which states that I need to execute make in order to build the .ko file. There is an existing Makefile in the working directory (/usr/src/linux/drivers/net/wireless/rtl818x/rtl8187/), which reads:

rtl8187-objs        := dev.o rtl8225.o leds.o rfkill.o

obj-$(CONFIG_RTL8187)   += rtl8187.o

ccflags-y += -Idrivers/net/wireless/rtl818x

在此目录中执行make时，我得到:

When I execute make inside this directory, I get:

make: *** No targets.  Stop.

根据此，这表示找到了一些makefile，但是它不包含任何默认目标，并且在命令行中未给出任何目标.在这些情况下，GNU make与无关."

所以我的问题是，在我要尝试执行的操作中这意味着什么?如何生成我据认为下一步需要的.ko文件?

So my question is, what does this mean in the context of what I am trying to do, and how do I go about generating the .ko file which I am purported to need for the next step?

推荐答案

您必须从Linux源代码的顶级目录(/usr/src/linux/中运行 make >).确保您的驱动程序包含在/usr/src/linux/.config 文件中.因此，使用驱动程序构建内核. 如果您不想重建整个内核，请阅读更多:)

You must run make from the top directory of the Linux source (/usr/src/linux/). Be sure that your driver is included in your /usr/src/linux/.config file. So, build the kernel with your driver. If you don't want to rebuild the entire kernel, read more :)

如果要重新构建目录内的所有模块:

If you want to re-build all modules inside the directory:

make M=drivers/net/wireless/rtl818x/rtl8187/

如果要在目录内重新构建单个模块:

If you want to re-build a single module inside the directory:

make M=drivers/net/wireless/rtl818x/ CONFIG_RTL8187=m

* CONFIG_RTL8187 *名称可在 drivers/net/wireless/rtl818x/Kconfig (CONFIG_ + RTL8187)中找到

The *CONFIG_RTL8187* name can be found in drivers/net/wireless/rtl818x/Kconfig (CONFIG_ + RTL8187)

这也应该起作用:

make drivers/net/wireless/rtl818x/rtl8187/rtl8187.ko

这篇关于如何“制作"商品修改驱动程序源代码后，现有的Linux内核模块驱动程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！