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Profiling newlib-nano’s memcpy | Interrupt

Newlib is a very popular libc targeting embedded systems. It’s the libc that ships with the GNU Arm Embedded Toolchain published by ARM.


This is a companion discussion topic for the original entry at https://interrupt.memfault.com/blog/memcpy-newlib-nano

Any idea what license governs the newlib implementation posted above? It looks like the source just provides a single file with every license used by the entire library

I believe it’s 3-clause BSD (or compatible, MIT).

Hi! To find out what I can do, say @discobot display help.

This post is useful for my project, I’m wondering though exactly why it does pick the byte copy. I didn’t see in your example that in enables __OPTIMIZE_SIZE__ only __OPTIMIZE__.