A simple operating system kernel for RISC-V.
The following process is based on Ubuntu (24.04) with a cross-compiler gcc and an emulator qemu.
To build a kernel, run make.
To run a kernel with qemu, run make qemu.
To run a debugger, run make qemu-gdb.
In another terminal, run gdb-multiarch.
Then you can debug with target remote:26000 in gdb.