/*
 * Copyright (c) 1980, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef _PTRACE_
#define _PTRACE_

#define PT_TRACE_ME	0	/* child declares it's being traced */
#define PT_READ_I	1	/* read word in child's I space */
#define PT_READ_D	2	/* read word in child's D space */
#define PT_READ_U	3	/* read word in child's user structure */
#define PT_WRITE_I	4	/* write word in child's I space */
#define PT_WRITE_D	5	/* write word in child's D space */
#define PT_WRITE_U	6	/* write word in child's user structure */
#define PT_CONTINUE	7	/* continue the child */
#define PT_KILL		8	/* kill the child process */
#define PT_STEP		9	/* single step the child */

/*
 * Tracing variables.
 * Used to pass trace command from
 * parent to child being traced.
 * This data base cannot be
 * shared and is locked
 * per user.
 */
struct ipc {
	int	ip_lock;
	int	ip_req;
	int	*ip_addr;
	int	ip_data;
};

#ifdef KERNEL

struct ipc ipc;

#else

int ptrace (int request, pid_t pid, void *addr, int data);

#endif

#endif