ctf_dwarf_create_reference
ret = ctf_dwarf_create_reference(cup, die, idp, CTF_K_POINTER,
ret = ctf_dwarf_create_reference(cup, die, idp, CTF_K_TYPEDEF,
ret = ctf_dwarf_create_reference(cup, die, idp, CTF_K_CONST,
ret = ctf_dwarf_create_reference(cup, die, idp, CTF_K_VOLATILE,
ret = ctf_dwarf_create_reference(cup, die, idp, CTF_K_RESTRICT,