Run the “sudo cat /proc/” command and make sure that the output shows the current time:.We will now test the created proc file by opening an SSH window connecting to the target: The breakpoint will trigger, allowing you to step through the code: Set a breakpoint in the init() function and press F5 to begin debugging.Depending on the kernel version you are using, you may need to replace the proc_ops structure with file_operations: Once the project is created, you can build it using the Build->Build Solution command.Select the debug settings that match your target and click “Finish” to generate a project:.VisualKernel will suggest storing the source files for the module on the Windows machine and uploading them during build.In this tutorial we will use a pre-built Ubuntu 22.04 VM, however you can configure VisualKernel to target any other supported VM or a physical machine: Pick the target system where you would like to run the module.In this tutorial we will use the project template for the /proc file, however any other template will work as well:.Enter the name and location for your project:.Start Visual Studio and locate the VisualKernel Linux Kernel Module Project Wizard:.We will then use the Code Explorer to quickly find other implementations of similar callbacks, and also understand the context where they are used.īefore you begin, install Visual Studio and VisualKernel 4.0 or later.
We will create a basic kernel module that creates a file in /proc and implements the callback functions required by the proc_create() API.
#Linux kernel source how to
This tutorial shows how to use Code Explorer to conveniently navigate the Linux kernel source using VisualKernel.
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