[Bug libgcc/113803] libgcc unwinder stops at calls to null function pointer on some targets

[schwab--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113803

--- Comment #2 from Andreas Schwab <sch...@linux-m68k.org> ---
  if (context->ra == 0)
    return _URC_END_OF_STACK;