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Use `PRIxxx` related macros to format the output strings so as to clear compile warnings, e.g. PRIu32, PRId32, PRIX32, PRIX64 and so on. And add the related macro definitions in platform_common.h if they are not defined, as some compilers might not support them.
This folder contains the platform abstract layer for multiple platforms. To support a new platform, you can simply create a new folder here and implement all the APIs defined in include folder.
Refer to port_wamr.md for how to port WAMR to a target platform.