RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 3eb4ec2a3aa86110a2232521ea75f29b0ad73d4e

chenjh 055c3d3e1d [Update] Sync from v4.0.3		5 tahun lalu
..
sys	055c3d3e1d [Update] Sync from v4.0.3	5 tahun lalu
SConscript	055c3d3e1d [Update] Sync from v4.0.3	5 tahun lalu
readme.md	055c3d3e1d [Update] Sync from v4.0.3	5 tahun lalu
termios.h	055c3d3e1d [Update] Sync from v4.0.3	5 tahun lalu
time.c	4875ee8a3a Sync from master (75a3f3dd3a930eab1dc58fa0258a9d1605a0ac11)	6 tahun lalu
unistd.c	055c3d3e1d [Update] Sync from v4.0.3	5 tahun lalu

Attentions

This folder is "common" for armlibc newlibc and dlib. It's not "common" for minilibc.
If you want to add new .c files, please do not forget to fix SConscript file too. eg:
```
if GetDepend('RT_USING_POSIX') == False:
    SrcRemove(src, ['unistd.c'])
```