https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100446
Sam James <sjames at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |vries at gcc dot gnu.org
--- Comment #14 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to R. Diez from comment #13)
> Yes, sorry I forgot about that separate bug I forgot. I've added a reference
> to it in the project's configure.ac next to the -g2 compiler flag, so that I
> do not forget it again.
No problem.
> The -g3 .elf file does contain .debug_macro sections with the macros which
> GDB cannot find.
OK, so this is definitely https://sourceware.org/PR32381.
> Do you have any idea what LTO does so very differently with regards to -g3
> debugging information?
I find it very strange too. I'm new to actually learning DWARF internals
(though had an adventure the other day), but Tom covers it at
https://sourceware.org/bugzilla/show_bug.cgi?id=32381#c6. I have no idea yet
how hard that is to fix in gdb.
