xv6-riscv-kernel/runoff.list

# basic headers
kernel/types.h
kernel/param.h
kernel/memlayout.h
kernel/defs.h
kernel/riscv.h
kernel/elf.h
kernel/date.h

# entering xv6
kernel/entry.S
kernel/main.c

# locks
kernel/spinlock.h
kernel/spinlock.c

# processes
kernel/vm.c
kernel/proc.h
kernel/proc.c
kernel/swtch.S
kernel/kalloc.c

# system calls
user/usys.pl
kernel/trap.c
kernel/syscall.h
kernel/syscall.c
kernel/sysproc.c

# file system
kernel/buf.h
kernel/sleeplock.h
kernel/fcntl.h
kernel/stat.h
kernel/fs.h
kernel/file.h
kernel/virtio_disk.c
kernel/bio.c
kernel/sleeplock.c
kernel/log.c
kernel/fs.c
kernel/file.c
kernel/sysfile.c
kernel/exec.c

# pipes
kernel/pipe.c

# string operations
kernel/string.c

# low-level hardware
kernel/uart.c

# user-level
user/initcode.S
user/usys.S
user/init.c
user/sh.c

# link
kernel/kernel.ld