I have started implementing readelf support for DWARF-5 along its consumer implementation for GDB. To prevent possible work duplication if this Bug has been found by anyone.
Ongoing work before it gets submitted: git://sourceware.org/git/archer.git git diff archer/users/jkratoch/dwarf5gcc{,-gdb}
[PATCH 3/6] DWARF-5 basic functionality https://sourceware.org/ml/binutils/2017-02/msg00138.html
Now checked-in (except DWO and .debug_names) as a patch series, primarily: commit 77145576fadc4dd2879adf5242b610ebbe30ec30 Author: Jan Kratochvil <jan.kratochvil@redhat.com> Date: Thu Feb 23 22:54:01 2017 +0100 DWARF-5 basic functionality