Awesome

The description

This is the VisualUEFI like project, but configurated to use the Clang compiler and emit DWARF debug information. It gives you a possibility to debug your UEFI applications in the source level on Windows using Vmware Workstation and GDB.

Installation

Install nasm https://www.nasm.us/ and add NASM\ folder to the PATH variable, install Clang https://learn.microsoft.com/en-us/cpp/build/clang-support-msbuild?view=msvc-170#install-1 and build edk2 libs project. At this point you are ready to build the main project in the samples folder.

Environment setting

I will cover setting up and using Clion as a GDB frontend. This is the easiest and hassle-free option. First, open the virtual machine's .vmx configuration file and put in these lines.

debugStub.listen.guest64 = "TRUE"
debugStub.port.guest64 = "55555"
debugStub.hideBreakpoints = "TRUE"

Next, you need to open the run \ debug configurations menu.

Add a new configuration.

Select remote debug and fill the connection information like below.

Then launch a virtual machine and load your UEFI application. You should use a dead loop in your app where an application waits for a debugger in an endless loop. After this we start remote debugging in Clion and pause code execution. After pausing enter add-symbol-file path_to_your_executable to GDB console.

Put a breakpoint at an endless loop, change a loop condition variable and after this you can freely do the source level debugging of your code.