RT-Thread-Studio/sdk-rt-thread-source-code: https://github.com/RT-Thread-Studio/sdk-rt-thread-source-code.git @ v5.0.2

guozhanxin 192948ebe0 update to 5.0.2 version		%!s(int64=2) %!d(string=hai) anos
..
fcntl	596468e4bc release rt-thread v4.1.1	%!s(int64=2) %!d(string=hai) anos
sys	218a73c0a6 发布 5.0.0	%!s(int64=2) %!d(string=hai) anos
SConscript	192948ebe0 update to 5.0.2 version	%!s(int64=2) %!d(string=hai) anos
readme.md	27740d4d79 release rt-thread v4.1.0	%!s(int64=3) %!d(string=hai) anos

Attentions

This folder is "common" for toolchains, which only support ISO C, as an extension part, such as Keil-MDK and IAR.