extern int protect(int fd, unsigned long addr, unsigned long len,
int r, int w, int x, int must_succeed);
extern void user_signal(int sig, union uml_pt_regs *regs);
+extern int singlestepping_skas(void);
extern int new_mm(int from);
extern void save_registers(union uml_pt_regs *regs);
extern void restore_registers(union uml_pt_regs *regs);