extern void discard_infcall_suspend_state (struct infcall_suspend_state *);
extern void discard_infcall_control_state (struct infcall_control_state *);
-extern struct regcache *
+extern readonly_detached_regcache *
get_infcall_suspend_state_regcache (struct infcall_suspend_state *);
extern void set_sigint_trap (void);