Ordos

My os development demo.

TODOS

1. User space
2. More log info
3. Memory allocation
4. File system
5. Shell
6. Support more gcc versions and std versions

Build

The project uses gcc14 (with c23 support) to build.

Build commands:

make all          # Build all
make clean        # Clean all
make rebuild      # Clean and build all
make qemu         # Run qemu
make qemu_debug   # Run qemu with debug flags

Testers:

make test                     # Build all testers
make TESTER=<name> qemu_test  # Build and run a tester

Debug

When running make all or make qemu_debug, there will be a ordos.debug file in the build directory (which is a elf32-i386 file). You can use gdb to debug it.

Note that functions before init_vpage cannot be debugged because the kernel is not running in flat memory model before init_vpage.

Thanks

• A os development tutorial from Charliechen114514: CCOperateSystem