How well is the Arm Cortex-R52 supported by Newlib?

[Sebastian Huber]

Hello,

it seems nobody used Newlib for the Arm Cortex-R52 before

https://sourceware.org/pipermail/newlib/2020/018170.html

?

How well is the Arm Cortex-R52 supported by the machine-specific files 
in Newlib in general? For example, memcpy() just uses the C 
implementation. Are there some improved/updated routines available from 
Arm which haven't been committed to Newlib? I can prepare the patches, I 
just need some hints were I can find the latest stuff.

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