ptrace_setregs
extern int ptrace_setregs(struct task_struct *child,
ret = ptrace_setregs(child, datavp);
ret = ptrace_setregs(child,
extern int ptrace_setregs(long pid, unsigned long *regs_in);
n = ptrace_setregs(pid, syscall_regs);
ret = ptrace_setregs(child, datap);
err = ptrace_setregs(pid, ®s);