调试Android的内核：将参数传递到Android内核，同时启动 [英] Debugging Android kernel: Passing arguments to android kernel while booting

问题描述

我想获得的kgdb使用了Android的内核工作 http://bootloader.wikidot.com/android ：使用kgdb 。我得到了stucked在接下来的步骤：

I am trying to get kgdb working with Android kernel using http://bootloader.wikidot.com/android:kgdb. I got stucked at following step:

    Configure kernel command line

    Specify ttyGS0 as the kgdboc device. Add the following into the kernel command line (possibly in BoardConfig.mk)

    kgdboc=ttyGS0 kgdbretry=4

    The second option "kgdbretry=4" is a new parameter added to kgdboc.c. 
    It means that if kgdb cannot find the device "ttyGS0" in early boot, 
    it will retry once after the specified number of seconds. 
    This is a work-around if the USB device is not immediately initialized during system boot.

有谁请告诉我哪BoardConfig.mk是指？或者有没有其他的方法，通过这些参数传递给内核，同时启动？

Could anybody please tell me which BoardConfig.mk is it referring? Or is there any other method for passing these arguments to the kernel while booting?

推荐答案

这是旧的文章，但我一直在看KGDB最近这样想我会分享：

An old post, but I've been looking at KGDB recently so thought I'd share:

有关Android的，我一直在通过引导，通过它可以在创建（或更新）启动映像中指定的bootimg.cfg文件PARAMS研究。例如，我使用更新现有的启动​​映像与一个新的配置文件，新的内核如下：

For Android, I've been passing boot params in via the bootimg.cfg file which can be specified when you create (or update) your boot image. For example, I am updating an existing boot image with a new config file and new kernel using the following:

abootimg -u boot.img -f bootimg.cfg -u zImage-dtb

一位在这个配置文件中的PARAMS是CMDLINE在这里你可以添加你的选择。

One of the params within this config file is "cmdline" where you can append your options.

另外，对于一个快速和肮脏的修改，你可以通过-c参数=值'选项abootimg这将允许你指定在飞行了新的选择。

Alternatively, for a quick and dirty modification you can pass the '-c "param=value"' option to abootimg which will allow you to specify new options on the fly.

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