Modern compilers perform a lot of optimizations, which can complicate debugging.
Song Liu and Thierry Treyer spoke about a potential improvement to

BPF Type Format (BTF) debugging information that could partially combat that problem at the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit.
They want to add information on selectively inlined functions to BTF in order to
better support tracing tools.
Treyer participated remotely.

https://lwn.net/Articles/1018475/
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