2024-09-05:
Ported musl c-library, now test-purpose initd and shell are static linked to musl.
Currently support syscalls (only main flags/options):
file -- open, close, seek,
dir -- getcwd, chdir, mkdir, rmdir, getdents64
io -- read, write, writev,
process -- fork, exec, sched_yield
virtmem -- mmap, munmap, brk,
2024-06-25:
AMD64 system call API changed to syscall/sysretq instruction pair.