RT-Thread-Studio/sdk-rt-thread-source-code: https://github.com/RT-Thread-Studio/sdk-rt-thread-source-code.git @ v4.0.3

yaxing.chen c0257098b9 release rt-thread v4.0.3		преди 4 години
..
sys	c0257098b9 release rt-thread v4.0.3	преди 4 години
SConscript	c0257098b9 release rt-thread v4.0.3	преди 4 години
readme.md	c0257098b9 release rt-thread v4.0.3	преди 4 години
termios.h	c0257098b9 release rt-thread v4.0.3	преди 4 години
time.c	c0257098b9 release rt-thread v4.0.3	преди 4 години
unistd.c	c0257098b9 release rt-thread v4.0.3	преди 4 години

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'])
```