Missing syscalls in lind-wasm

[robinyuan1002]

When debugging coreutils mv, I found openat, arch_prctl, set_tid_address, set_robust_list, rseq, mprotect, getrandom, brk, exit_group missed in current lind-wasm.

That would be great if @Yaxuan-w could look at this for further fix plans.

[Yaxuan-w]

There're lots of syscalls not being handled by lind-wasm (700+) and it will cause coreutils. After discussing with @qianxichen233, we decided to start with the variants of the system call we have already implemented. (ie: unlink and unlinkat / dup and dup3 / etc.).

The first step will be finding corresponding variants by comparing their names and generate list. I think this would be a good first issue for @AryanAjmera18 to get familiar with lind-wasm.

Reference:
Whole syscall list supported by linux kernel

We can decide detailed implementation case by case after getting the variant list.

[rennergade]

I mentioned this on slack but I think a great first step here is to compile coreutils for lind-nacl and compare the config files to what we have here in Lind-Wasm. It would be very valuable to understand what's happening with the #defines

[Yaxuan-w]

Further discussion on new issue #87

Close this one to avoid duplication