From: https://wiki.lazarus.freepascal.org/lldb

LLDB is now the standard debugger in the Lazarus IDE for macOS. The recommended setting is “Dwarf with sets”.

-gw -godwarfsets

and

Possible solution: What you can try is to use the

 -godwarfcpp

command line option. Then FPC will encode in the debug information that it’s a C++ program which solves several of those issues.

Tom. Developer and Musician. The man behind Virtual Analogy and its products.