huntedbytheirsandSisyphus b9f8d9bf19 Add libc implementation stubs
Real string core and process teardown; thin read/write/close/getpid/_exit syscall wrappers; the rest follows the stub convention (documented error return, errno = ENOSYS, TODO). syscall.c is the only kernel ABI surface; crt0.S is the static entry point, kept out of libc.a.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <[email protected]>
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nulsl-libc

A extremely lightweight and memory conservative LibC implementation.

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Description
A extremely lightweight and memory conservative LibC implementation.
Readme OSL-3.0
57 KiB
Languages
C 69.2%
Makefile 16%
M4 7.2%
Assembly 5.3%
Shell 2.3%