Phoenix-RTOS uses its own standard C library - libphoenix. The library provides three types of system interfaces:
- IEEE Std 1003.1-2017 (POSIX) compliant system interface,
- Phoenix-RTOS specific functions,
- GNU/Linux compliant functions.
The source code of the libphoenix could be obtained using the following command
git clone http://git.phoenix-rtos.com/libphoenix