extern void init_dwarf_regnames_iamcu (void);
extern void init_dwarf_regnames_x86_64 (void);
extern void init_dwarf_regnames_aarch64 (void);
+extern void init_dwarf_regnames_s390 (void);
extern int load_debug_section (enum dwarf_section_display_enum, void *);
extern void free_debug_section (enum dwarf_section_display_enum);