Using gdb test-case gdb.dwarf2/loclists-multiple-cus.exp: ... $ cp outputs/gdb.dwarf2/loclists-multiple-cus/loclists-multiple-cus-dw32 1; ~/dwz/build/dwz 1 /home/vries/dwz/build/dwz: 1: Unknown DWARF DW_FORM_loclistx /home/vries/dwz/build/dwz: 1: Couldn't read abbrev at offset 0x64 ...