This is xnu-8019. See this file in:
/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 *
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*-
 * Copyright (c) 1984, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)ptrace.h	8.2 (Berkeley) 1/4/94
 */

#ifndef _SYS_PTRACE_H_
#define _SYS_PTRACE_H_

#include <sys/appleapiopts.h>
#include <sys/cdefs.h>
#include <sys/types.h>

enum {
	ePtAttachDeprecated __deprecated_enum_msg("PT_ATTACH is deprecated. See PT_ATTACHEXC") = 10
};


#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 */
#define PT_ATTACH       ePtAttachDeprecated     /* trace some running process */
#define PT_DETACH       11      /* stop tracing a process */
#define PT_SIGEXC       12      /* signals as exceptions for current_proc */
#define PT_THUPDATE     13      /* signal for thread# */
#define PT_ATTACHEXC    14      /* attach to running process with signal exception */

#define PT_FORCEQUOTA   30      /* Enforce quota for root */
#define PT_DENY_ATTACH  31

#define PT_FIRSTMACH    32      /* for machine-specific requests */

__BEGIN_DECLS

#ifndef KERNEL

int     ptrace(int _request, pid_t _pid, caddr_t _addr, int _data);

#endif /* !KERNEL */

__END_DECLS

#endif  /* !_SYS_PTRACE_H_ */