Since GDB 7.11 and commit http://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=7d45c7c3f692d93c3a33a043c347f1386681deb4, GDB has been unable to properly read debug information from code built with clang and -gsplit-dwarf.

This was originally affecting Chromium debug builds, as reported here: https://bugs.chromium.org/p/chromium/issues/detail?id=680654. As described there, one can reproduce the issue by building the following snippet:

  namespace N {
    int func() {
      return 42;
    }
  }

$ clang++ -gsplit-dwarf -g2 -c func.cc && clang++ -shared -o libfunc.so func.o
$ gdb -q ./libfunc.so
Reading symbols from ./libfoo.so...done.
(gdb) info func func
All functions matching regular expression "func":
File bla.cc:
int (anonymous namespace)::func();

When GCC is used, or when clang is invoked without -gsplit-dwarf, everything works as expected and "info func func" shows "int N::func();".

The bug was recently fixed in GDB upstream, but it's currently only in its master branch. It would be great if the Fedora package was updated with the following two commits:
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=16eb6b2db49e6cf2fdca56efd37689fcc170cd37 ("Fix dwarf2_string_attr for -gsplit-dwarf")
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=b33404388e5bbd8a1fddfde73cd4593ae2b557e8 ("gdb: Fix build failure with GCC 7", which is a follow-up to the previous one)