This utility is intended for assisting in kernel/kernel module development and debugging. The main purpose is routine automation like VM management, migration, processing, and so on.
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This util is currently in development and is used only for work purposes, therefore its functionality will be extended as soon as at will be needed
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This util was tested only on arch-linux and fedora with CentOS-7 as a VM, other distributions of VMs / OSs will be added later
Before we start, let's do some preparations.
- Initialize VKDBG with command. After that, you can use it from anywhere.
./vkdbg bootstrap-
Find a QCOW2 image of the machine you want or create it by yourself and then find some debug sources in rpm format (deb is coming soon). Your best choice is fedora / CentOS images as both of them have good debug sources and kernel images.
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Let's create your first VKDBG bundle, a command below creates a virtual machine environment bundle for fast migration.
./vkgdb bundle create -p <path_to_qcow> -r <path_to_dir_with_rpms> [-n bundle_name] - This process will take some time and it will take even longer, depending on the size of your image and sources, we can continue after bundle creation. A command to create a VKDBG environment for your VM
./vkdbg vm init <machine_name> -p <path_to_bundle> -
If you don't have a virtual machine, create it following the instructions from the output of the previous command
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Well, all's done! Now, you can debug and manipulate this machine in any way you want as a simple program. Just run
./vkdbg vm set-current <machine_name> (optionally)
./vkdbg vm start
./vkdbg vm debugFor more information, you can use --help for almost any command.