与新的驱动程序模块交叉编译Linux Arm Kernel [英] Cross Compiling Linux Arm Kernel with new driver module

问题描述

我正试图在我的arch linux arm机器上包括一个驱动程序.我尝试使用这些步骤来包含驱动程序模块，但是添加了驱动程序的交叉编译内核无法加载.

I am trying to include a driver for use on my arch linux arm machine. I tried using these steps to include the driver module, but my cross-compiled kernel with the added driver doesn't load.

1) Include the driver I want to add by making it have < M > beside it's 
   name in make ARCH=arm menuconfig

2) run: make ARCH=arm CROSS_COMPILE=/home/z3/bin/arm-   (the path for my cross-compiling toolchain)

3) run: make ARCH=arm CROSS_COMPILE=/home/z3/bin/arm- modules

4) run: make ARCH=arm CROSS_COMPILE=/home/z3/bin/arm- install

5) run: make ARCH=arm CROSS_COMPILE=/home/z3/bin/arm- modules_install

6) copy my uImage from: arch/arm/boot 
   to my boot location: /tftpboot/

然后，当我的嵌入式linux臂尝试加载内核uImage时，它挂起: 将入口点地址更改为80008000，所以现在它挂起:

Then when my embedded linux arm tries to load the kernel uImage, it hangs with: Changed the entry point address to 80008000, so now it hangs with:

Filename '/tftpboot/uImage'.                                                    
Load address: 0x81800000                                                        
Loading: #################################################################      
         #################################################################      
         #################################################################      
         #################################################################      
         #################################################################      
         #################################################################      
         #################################################################      
         #################################################################      
         #################################################################      
         ####################################                                   
done                                                                            

传输的字节数= 3174848(十六进制3701c0)

Bytes transferred = 3174848 (3071c0 hex)

图片名称:2.6.35-ModifiedEntry
图像类型:ARM Linux内核图像(未压缩)
数据大小:3174784字节= 3 MiB
加载地址:80008000
入口点:80008000
正在验证校验和...确定
正在加载内核图像...确定
确定

Image Name: 2.6.35-ModifiedEntry
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3174784 Bytes = 3 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK

正在启动内核...

我交叉编译内核错了吗?它无法加载uImage.我要做的就是用新包含的驱动程序(包含在make menuconfig的config中)为linux arm机器交叉编译我的内核.我是否还缺少其他任何步骤?

Am I cross-compiling my kernel wrong? It cannot load the uImage. All I want to do is cross compile my kernel for the linux arm machine with a newly included driver (included in the config from make menuconfig). Am I missing any additional steps?

推荐答案

您在内核构建过程中犯了两个错误.

You have done two mistake in kernel building procedure.

1)在make menuconfig

您需要有一个.config文件，该文件应以源代码形式退出.

you need to have a .config file should exit in source-code.

您如何获得它

1)使ARCH = arm board_defconfig

1) make ARCH=arm board_defconfig

在/arch/arm/configs中检查默认配置

check your default config in /arch/arm/configs

例如，使ARCH = arm通用型_defconfig

e.g make ARCH=arm versatile_defconfig

这会将default配置写入.config

2)如果您不知道默认配置，则可以在目标板文件系统中获取它.

2)if you dont know your default configuration you can get it in target board Filesystem.

它将在/proc/config.gz中复制到您的主机，并将其解压缩并在顶部的源代码中复制为.config. 或者它可能出现在/boot/config.x.x.x

it will be in /proc/config.gz copy to your host untar it and copy as .config in top source-code. or it may present in /boot/config.x.x.x

如果不执行上述步骤，则使ARCH = arm menuconfig将从/boot/config-x.x.x复制主机x86配置文件，这将是错误的配置文件

if dont follow above step make ARCH=arm menuconfig this will copy host x86 config file from /boot/config-x.x.x which will be wrong config file

完成上述步骤后，下一步进行ARCH = arm menuconfig启用驱动程序.

Once above step is done then next step make ARCH=arm menuconfig here enable your driver.

第二个错误是make ARCH=arm CROSS_COMPILE=/home/z3/bin/arm- modules_install

这将在x86主机的/lib/modules中安装模块.

This will install modules in /lib/modules of x86 host machine.

所以跟随下面的一个

make ARCH=arm CROSS_COMPILE=(path to arm) uImage modules

创建目录以安装动态可加载模块

create a directory to install your dynamic loadable modules

make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- modules_install INSTALL_MOD_PATH=<path to install modules>

然后，您需要将模块复制到目标.

Then you need to copy modules to your target.

有关更多详细信息，您可以参考以下运行Qemu后仅出现黑屏

For more details you can refer this Just black screen after running Qemu

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