[Bug libbacktrace/104463] Split debug info not loaded from .debug/ if .gnu_debuglink points to binary itself

[mark at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104463

Mark Wielaard <mark at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-02-25

--- Comment #1 from Mark Wielaard <mark at gcc dot gnu.org> ---
Note. The term "split dwarf" is often associated with the -gsplit-dwarf option,
which uses .dwo sections (and files) to split DWARF debuginfo. This bug isn't
about that.

I can replicate the issue, but haven't fully traced why it happens.

It seems libbacktrace gets confused about where /proc/self/exe points to and
tries to open /proc/self/bug, /proc/self/.debug/bug and
/usr/lib/debug//proc/self/bug