RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ a7a3ca9f0290131842f1a40bb8dca1a9490e4d27

Meco Man a7a3ca9f02 增加手动设置时区的功能		4 лет назад
..
none-gcc	cb7fa8fcea implement pid_t gettid(void)	4 лет назад
sys	f9ba41f4c2 更改libc目录为common 以及 none-gcc	4 лет назад
SConscript	ae66d82624 update sconscript	4 лет назад
dirent.h	f9ba41f4c2 更改libc目录为common 以及 none-gcc	4 лет назад
readme.md	f9ba41f4c2 更改libc目录为common 以及 none-gcc	4 лет назад
stdlib.c	3c05a4e719 [compoenets] auto & manual formatted	5 лет назад
termios.h	3c05a4e719 [compoenets] auto & manual formatted	5 лет назад
time.c	a7a3ca9f02 增加手动设置时区的功能	4 лет назад
unistd.c	19347ed454 [libc][unistd] 完善isatty()	4 лет назад

Attentions

This folder is "common" for all toolchains.
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'])
```