-void alpha_software_single_step (enum target_signal, int);
-
-void alpha_gdbarch_register_os_abi (enum alpha_abi,
- void (*init_abi)(struct gdbarch_info,
- struct gdbarch *));
+extern unsigned int alpha_read_insn (struct gdbarch *gdbarch, CORE_ADDR pc);
+extern std::vector<CORE_ADDR> alpha_software_single_step
+ (struct regcache *regcache);
+extern CORE_ADDR alpha_after_prologue (CORE_ADDR pc);
+
+extern void alpha_mdebug_init_abi (struct gdbarch_info, struct gdbarch *);
+extern void alpha_dwarf2_init_abi (struct gdbarch_info, struct gdbarch *);
+
+extern void alpha_supply_int_regs (struct regcache *, int, const void *,
+ const void *, const void *);
+extern void alpha_fill_int_regs (const struct regcache *, int,
+ void *, void *, void *);
+extern void alpha_supply_fp_regs (struct regcache *, int,
+ const void *, const void *);
+extern void alpha_fill_fp_regs (const struct regcache *,
+ int, void *, void *);