[Elftoolchain-developers] addr2line improvements - sys/tree.h on Linux

[Ed M. <em...@fr...>]

One of the FreeBSD Foundation's co-op students has made some
enhancements to addr2line in FreeBSD to improve performance and
correctness:

https://reviews.freebsd.org/rS357450
addr2line: Cache CU DIEs upon a successful address lookup.

https://reviews.freebsd.org/rS357844
addr2line: Handle DW_AT_ranges in compile units

I have these merged to ELF Tool Chain in the "addr2line" branch in my git fork:
https://github.com/emaste/elftoolchain/tree/addr2line

However this uses BSD's sys/tree.h, and I am not sure if it's
available on Linux distros. Once we have CI for Linux (or get advice
on sys/tree.h there) I will work on bringing these changes upstream.