[apple/xnu.git] / bsd / sys / user.h

/*
 * Copyright (c) 2000-2012 Apple 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, 1997 Apple Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1982, 1986, 1989, 1991, 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.
 *
 *	@(#)user.h	8.2 (Berkeley) 9/23/93
 */

#ifndef	_SYS_USER_H_
#define	_SYS_USER_H_

#include <sys/appleapiopts.h>
#ifndef KERNEL
/* stuff that *used* to be included by user.h, or is now needed */
#include <errno.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/ucred.h>
#include <sys/uio.h>
#endif
#ifdef XNU_KERNEL_PRIVATE
#include <sys/resourcevar.h>
#include <sys/signalvar.h>
#endif
#include <sys/vm.h>		/* XXX */
#include <sys/sysctl.h>

#ifdef KERNEL
#ifdef BSD_KERNEL_PRIVATE
#include <sys/pthread_internal.h> /* for uu_kwe entry */
#endif  /* BSD_KERNEL_PRIVATE */
#ifdef __APPLE_API_PRIVATE
#include <sys/eventvar.h>

#if !defined(__LP64__) || defined(XNU_KERNEL_PRIVATE)
/*
 * VFS context structure (part of uthread)
 */
struct vfs_context {
	thread_t	vc_thread;		/* pointer to Mach thread */
	kauth_cred_t	vc_ucred;		/* per thread credential */
};

#endif /* !__LP64 || XNU_KERNEL_PRIVATE */

#ifdef BSD_KERNEL_PRIVATE
/* XXX Deprecated: xnu source compatability */
#define uu_ucred	uu_context.vc_ucred

struct label;		/* MAC label dummy struct */

#define MAXTHREADNAMESIZE 64
/*
 *	Per-thread U area.
 */
 
struct uthread {
	/* syscall parameters, results and catches */
	u_int64_t uu_arg[8]; /* arguments to current system call */
	int	*uu_ap;			/* pointer to arglist */
    int uu_rval[2];

	/* thread exception handling */
	mach_exception_code_t uu_code;	/* ``code'' to trap */
	mach_exception_subcode_t uu_subcode;
	int	uu_exception;
	char uu_cursig;			/* p_cursig for exc. */
	/* support for syscalls which use continuations */
	union {
		struct _select_data {
			u_int64_t abstime;
			char * wql;
			int poll;
			int error;
			int count;
		} ss_select_data;
		struct _kqueue_scan {
			kevent_callback_t call; /* per-event callback */
			kqueue_continue_t cont; /* whole call continuation */
			uint64_t deadline;	/* computed deadline for operation */
			void *data;		/* caller's private data */
		} ss_kqueue_scan;		/* saved state for kevent_scan() */
		struct _kevent {
			struct _kqueue_scan scan;/* space for the generic data */
			struct fileproc *fp;	 /* fileproc we hold iocount on */
			int fd;			 /* filedescriptor for kq */
			int32_t *retval;	 /* place to store return val */
			user_addr_t eventlist;	 /* user-level event list address */
			size_t eventsize;	/* kevent or kevent64_s */
			int eventcount;	 	/* user-level event count */
			int eventout;		 /* number of events output */
		} ss_kevent;			 /* saved state for kevent() */

		struct _kauth {
			user_addr_t message;	/* message in progress */
		} uu_kauth;

		struct ksyn_waitq_element  uu_kwe;		/* user for pthread synch */
	} uu_kevent;

	struct _select {
			u_int32_t	*ibits, *obits; /* bits to select on */
			uint	nbytes;	/* number of bytes in ibits and obits */
			struct _select_data *data;
	} uu_select;			/* saved state for select() */

  /* internal support for continuation framework */
    int (*uu_continuation)(int);
    int uu_pri;
    int uu_timo;
	caddr_t uu_wchan;			/* sleeping thread wait channel */
	const char *uu_wmesg;			/* ... wait message */
	struct proc * uu_proc;
	thread_t uu_thread;
	void * uu_userstate;
	wait_queue_set_t uu_wqset;			/* cached across select calls */
	size_t uu_allocsize;				/* ...size of select cache */
	int uu_flag;
	sigset_t uu_siglist;				/* signals pending for the thread */
	sigset_t  uu_sigwait;				/*  sigwait on this thread*/
	sigset_t  uu_sigmask;				/* signal mask for the thread */
	sigset_t  uu_oldmask;				/* signal mask saved before sigpause */
	sigset_t  uu_vforkmask;				/* saved signal mask during vfork */
	struct vfs_context uu_context;			/* thread + cred */

	TAILQ_ENTRY(uthread) uu_list;		/* List of uthreads in proc */

	struct kaudit_record 	*uu_ar;			/* audit record */
	struct task*	uu_aio_task;			/* target task for async io */
    
	lck_mtx_t	*uu_mtx;

	TAILQ_ENTRY(uthread) uu_throttlelist;	/* List of uthreads currently throttled */
	void	*	uu_throttle_info; 	/* pointer to throttled I/Os info */
	int		uu_on_throttlelist;
	int		uu_lowpri_window;
	boolean_t	uu_throttle_bc;

	u_int32_t	uu_network_marks;	/* network control flow marks */

	struct kern_sigaltstack uu_sigstk;
        vnode_t		uu_vreclaims;
	vnode_t		uu_cdir;		/* per thread CWD */
	int		uu_notrigger;		/* XXX - flag for autofs */
	int		uu_dupfd;		/* fd in fdesc_open/dupfdopen */
        int		uu_defer_reclaims;

#ifdef JOE_DEBUG
        int		uu_iocount;
        int		uu_vpindex;
        void 	*	uu_vps[32];
        void    *       uu_pcs[32][10];
#endif
#if CONFIG_DTRACE
	uint32_t	t_dtrace_errno; /* Most recent errno */
	siginfo_t	t_dtrace_siginfo;
        uint64_t        t_dtrace_resumepid; /* DTrace's pidresume() pid */
        uint8_t         t_dtrace_stop;  /* indicates a DTrace desired stop */
        uint8_t         t_dtrace_sig;   /* signal sent via DTrace's raise() */
			     
        union __tdu {
                struct __tds {
                        uint8_t _t_dtrace_on;   /* hit a fasttrap tracepoint */
                        uint8_t _t_dtrace_step; /* about to return to kernel */
                        uint8_t _t_dtrace_ret;  /* handling a return probe */
                        uint8_t _t_dtrace_ast;  /* saved ast flag */
#if __sol64 || defined(__APPLE__)
                        uint8_t _t_dtrace_reg;  /* modified register */
#endif
                } _tds;
                u_int32_t _t_dtrace_ft;           /* bitwise or of these flags */
        } _tdu;
#define t_dtrace_ft     _tdu._t_dtrace_ft
#define t_dtrace_on     _tdu._tds._t_dtrace_on
#define t_dtrace_step   _tdu._tds._t_dtrace_step
#define t_dtrace_ret    _tdu._tds._t_dtrace_ret
#define t_dtrace_ast    _tdu._tds._t_dtrace_ast
#if __sol64 || defined(__APPLE__)
#define t_dtrace_reg    _tdu._tds._t_dtrace_reg
#endif

        user_addr_t	t_dtrace_pc;    /* DTrace saved pc from fasttrap */
        user_addr_t	t_dtrace_npc;   /* DTrace next pc from fasttrap */
        user_addr_t	t_dtrace_scrpc; /* DTrace per-thread scratch location */
        user_addr_t	t_dtrace_astpc; /* DTrace return sequence location */

	struct dtrace_ptss_page_entry*	t_dtrace_scratch; /* scratch space entry */

#if __sol64 || defined(__APPLE__)
        uint64_t        t_dtrace_regv;  /* DTrace saved reg from fasttrap */
#endif
	void *		t_dtrace_syscall_args;
#endif /* CONFIG_DTRACE */
	void *		uu_threadlist;
	char *		pth_name;
	struct label *	uu_label;	/* MAC label */
};

typedef struct uthread * uthread_t;

/* Definition of uu_flag */
#define	UT_SAS_OLDMASK	0x00000001	/* need to restore mask before pause */
#define	UT_NO_SIGMASK	0x00000002	/* exited thread; invalid sigmask */
#define UT_NOTCANCELPT	0x00000004             /* not a cancelation point */
#define UT_CANCEL	0x00000008             /* thread marked for cancel */
#define UT_CANCELED	0x00000010            /* thread cancelled */
#define UT_CANCELDISABLE 0x00000020            /* thread cancel disabled */
#define	UT_ALTSTACK	0x00000040	/* this thread has alt stack for signals */
#define UT_THROTTLE_IO	0x00000080	/* this thread issues throttle I/O */
#define UT_PASSIVE_IO	0x00000100	/* this thread issues passive I/O */
#define UT_PROCEXIT	0x00000200	/* this thread completed the  proc exit */
#define UT_RAGE_VNODES	0x00000400	/* rapid age any vnodes created by this thread */	
/* 0x00000800 unused, used to be UT_BACKGROUND */
/* 0x00001000 unused, used to be UT_BACKGROUND_TRAFFIC_MGT */

#define	UT_VFORK	0x02000000	/* thread has vfork children */
#define	UT_SETUID	0x04000000	/* thread is settugid() */
#define UT_WASSETUID	0x08000000	/* thread was settugid() (in vfork) */
#define	UT_VFORKING	0x10000000	/* thread in vfork() syscall */

#endif /* BSD_KERNEL_PRIVATE */

#endif /* __APPLE_API_PRIVATE */

#endif	/* KERNEL */

/*
 * Per process structure containing data that isn't needed in core
 * when the process isn't running (esp. when swapped out).
 * This structure may or may not be at the same kernel address
 * in all processes.
 */
 
struct	user {
  /* NOT USED ANYMORE */
};

#endif	/* !_SYS_USER_H_ */
Commit	Line	Data
1c79356b	1	/*
39236c6e	2	* Copyright (c) 2000-2012 Apple Inc. All rights reserved.
5d5c5d0d	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
	29	/*
	30	* Copyright (c) 1982, 1986, 1989, 1991, 1993
	31	* The Regents of the University of California. All rights reserved.
	32	*
	33	* Redistribution and use in source and binary forms, with or without
	34	* modification, are permitted provided that the following conditions
	35	* are met:
	36	* 1. Redistributions of source code must retain the above copyright
	37	* notice, this list of conditions and the following disclaimer.
	38	* 2. Redistributions in binary form must reproduce the above copyright
	39	* notice, this list of conditions and the following disclaimer in the
	40	* documentation and/or other materials provided with the distribution.
	41	* 3. All advertising materials mentioning features or use of this software
	42	* must display the following acknowledgement:
	43	* This product includes software developed by the University of
	44	* California, Berkeley and its contributors.
	45	* 4. Neither the name of the University nor the names of its contributors
	46	* may be used to endorse or promote products derived from this software
	47	* without specific prior written permission.
	48	*
	49	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	50	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	51	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	52	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	53	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	54	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	55	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	56	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	57	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	58	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	59	* SUCH DAMAGE.
	60	*
	61	* @(#)user.h 8.2 (Berkeley) 9/23/93
	62	*/
	63
	64	#ifndef _SYS_USER_H_
	65	#define _SYS_USER_H_
	66
9bccf70c	67	#include <sys/appleapiopts.h>
1c79356b A	68	#ifndef KERNEL
	69	/* stuff that used to be included by user.h, or is now needed */
	70	#include <errno.h>
	71	#include <sys/time.h>
	72	#include <sys/resource.h>
	73	#include <sys/ucred.h>
	74	#include <sys/uio.h>
	75	#endif
b0d623f7	76	#ifdef XNU_KERNEL_PRIVATE
1c79356b A	77	#include <sys/resourcevar.h>
1c79356b A	78	#include <sys/signalvar.h>
91447636	79	#endif
1c79356b A	80	#include <sys/vm.h> /* XXX */
1c79356b A	81	#include <sys/sysctl.h>
6d2010ae	82
1c79356b	83	#ifdef KERNEL
6d2010ae A	84	#ifdef BSD_KERNEL_PRIVATE
	85	#include <sys/pthread_internal.h> /* for uu_kwe entry */
	86	#endif /* BSD_KERNEL_PRIVATE */
9bccf70c	87	#ifdef __APPLE_API_PRIVATE
91447636 A	88	#include <sys/eventvar.h>
91447636 A	89
b0d623f7	90	#if !defined(__LP64__) \|\| defined(XNU_KERNEL_PRIVATE)
2d21ac55 A	91	/*
	92	* VFS context structure (part of uthread)
	93	*/
	94	struct vfs_context {
	95	thread_t vc_thread; /* pointer to Mach thread */
	96	kauth_cred_t vc_ucred; /* per thread credential */
	97	};
	98
b0d623f7 A	99	#endif /* !__LP64 \|\| XNU_KERNEL_PRIVATE */
	100
	101	#ifdef BSD_KERNEL_PRIVATE
2d21ac55 A	102	/* XXX Deprecated: xnu source compatability */
	103	#define uu_ucred uu_context.vc_ucred
	104
316670eb A	105	struct label; /* MAC label dummy struct */
316670eb A	106
b0d623f7	107	#define MAXTHREADNAMESIZE 64
1c79356b A	108	/*
1c79356b A	109	* Per-thread U area.
1c79356b	110	*/
2d21ac55	111
1c79356b	112	struct uthread {
1c79356b	113	/* syscall parameters, results and catches */
d1ecb069	114	u_int64_t uu_arg[8]; /* arguments to current system call */
1c79356b	115	int uu_ap; / pointer to arglist */
2d21ac55	116	int uu_rval[2];
1c79356b A	117
1c79356b A	118	/* thread exception handling */
2d21ac55 A	119	mach_exception_code_t uu_code; /* ``code'' to trap */
2d21ac55 A	120	mach_exception_subcode_t uu_subcode;
39236c6e	121	int uu_exception;
91447636	122	char uu_cursig; /* p_cursig for exc. */
2d21ac55	123	/* support for syscalls which use continuations */
39236c6e A	124	union {
39236c6e A	125	struct _select_data {
2d21ac55	126	u_int64_t abstime;
39236c6e	127	char * wql;
2d21ac55 A	128	int poll;
	129	int error;
	130	int count;
39236c6e	131	} ss_select_data;
b0d623f7	132	struct _kqueue_scan {
91447636	133	kevent_callback_t call; /* per-event callback */
b0d623f7	134	kqueue_continue_t cont; /* whole call continuation */
91447636 A	135	uint64_t deadline; /* computed deadline for operation */
91447636 A	136	void data; / caller's private data */
b0d623f7	137	} ss_kqueue_scan; /* saved state for kevent_scan() */
91447636	138	struct _kevent {
b0d623f7	139	struct _kqueue_scan scan;/* space for the generic data */
91447636 A	140	struct fileproc fp; / fileproc we hold iocount on */
91447636 A	141	int fd; /* filedescriptor for kq */
b0d623f7	142	int32_t retval; / place to store return val */
91447636	143	user_addr_t eventlist; /* user-level event list address */
b0d623f7	144	size_t eventsize; /* kevent or kevent64_s */
91447636 A	145	int eventcount; /* user-level event count */
	146	int eventout; /* number of events output */
	147	} ss_kevent; /* saved state for kevent() */
39236c6e A	148
	149	struct _kauth {
	150	user_addr_t message; /* message in progress */
	151	} uu_kauth;
	152
	153	struct ksyn_waitq_element uu_kwe; /* user for pthread synch */
2d21ac55	154	} uu_kevent;
39236c6e A	155
	156	struct _select {
	157	u_int32_t ibits, obits; /* bits to select on */
	158	uint nbytes; /* number of bytes in ibits and obits */
	159	struct _select_data *data;
	160	} uu_select; /* saved state for select() */
	161
1c79356b A	162	/* internal support for continuation framework */
	163	int (*uu_continuation)(int);
	164	int uu_pri;
	165	int uu_timo;
2d21ac55 A	166	caddr_t uu_wchan; /* sleeping thread wait channel */
2d21ac55 A	167	const char uu_wmesg; / ... wait message */
0b4e3aa0	168	struct proc * uu_proc;
316670eb	169	thread_t uu_thread;
0b4e3aa0	170	void * uu_userstate;
2d21ac55 A	171	wait_queue_set_t uu_wqset; /* cached across select calls */
2d21ac55 A	172	size_t uu_allocsize; /* ...size of select cache */
39236c6e	173	int uu_flag;
9bccf70c A	174	sigset_t uu_siglist; /* signals pending for the thread */
	175	sigset_t uu_sigwait; /* sigwait on this thread*/
	176	sigset_t uu_sigmask; /* signal mask for the thread */
	177	sigset_t uu_oldmask; /* signal mask saved before sigpause */
9bccf70c	178	sigset_t uu_vforkmask; /* saved signal mask during vfork */
39236c6e	179	struct vfs_context uu_context; /* thread + cred */
9bccf70c A	180
9bccf70c A	181	TAILQ_ENTRY(uthread) uu_list; /* List of uthreads in proc */
55e303ae	182
b0d623f7	183	struct kaudit_record uu_ar; / audit record */
55e303ae	184	struct task* uu_aio_task; /* target task for async io */
316670eb	185
91447636 A	186	lck_mtx_t *uu_mtx;
91447636 A	187
316670eb	188	TAILQ_ENTRY(uthread) uu_throttlelist; /* List of uthreads currently throttled */
39236c6e	189	void * uu_throttle_info; /* pointer to throttled I/Os info */
316670eb	190	int uu_on_throttlelist;
593a1d5f	191	int uu_lowpri_window;
6d2010ae	192	boolean_t uu_throttle_bc;
39236c6e A	193
39236c6e A	194	u_int32_t uu_network_marks; /* network control flow marks */
91447636	195
b0d623f7	196	struct kern_sigaltstack uu_sigstk;
91447636	197	vnode_t uu_vreclaims;
2d21ac55	198	vnode_t uu_cdir; /* per thread CWD */
39236c6e	199	int uu_notrigger; /* XXX - flag for autofs */
2d21ac55	200	int uu_dupfd; /* fd in fdesc_open/dupfdopen */
39236c6e	201	int uu_defer_reclaims;
2d21ac55	202
91447636 A	203	#ifdef JOE_DEBUG
	204	int uu_iocount;
	205	int uu_vpindex;
	206	void * uu_vps[32];
6d2010ae	207	void * uu_pcs[32][10];
91447636	208	#endif
2d21ac55 A	209	#if CONFIG_DTRACE
2d21ac55 A	210	uint32_t t_dtrace_errno; /* Most recent errno */
39236c6e A	211	siginfo_t t_dtrace_siginfo;
39236c6e A	212	uint64_t t_dtrace_resumepid; /* DTrace's pidresume() pid */
6d2010ae	213	uint8_t t_dtrace_stop; /* indicates a DTrace desired stop */
2d21ac55	214	uint8_t t_dtrace_sig; /* signal sent via DTrace's raise() */
316670eb	215
2d21ac55 A	216	union __tdu {
	217	struct __tds {
	218	uint8_t _t_dtrace_on; /* hit a fasttrap tracepoint */
	219	uint8_t _t_dtrace_step; /* about to return to kernel */
	220	uint8_t _t_dtrace_ret; /* handling a return probe */
	221	uint8_t _t_dtrace_ast; /* saved ast flag */
	222	#if __sol64 \|\| defined(__APPLE__)
	223	uint8_t _t_dtrace_reg; /* modified register */
	224	#endif
	225	} _tds;
b0d623f7	226	u_int32_t _t_dtrace_ft; /* bitwise or of these flags */
2d21ac55 A	227	} _tdu;
	228	#define t_dtrace_ft _tdu._t_dtrace_ft
	229	#define t_dtrace_on _tdu._tds._t_dtrace_on
	230	#define t_dtrace_step _tdu._tds._t_dtrace_step
	231	#define t_dtrace_ret _tdu._tds._t_dtrace_ret
	232	#define t_dtrace_ast _tdu._tds._t_dtrace_ast
	233	#if __sol64 \|\| defined(__APPLE__)
	234	#define t_dtrace_reg _tdu._tds._t_dtrace_reg
	235	#endif
	236
	237	user_addr_t t_dtrace_pc; /* DTrace saved pc from fasttrap */
	238	user_addr_t t_dtrace_npc; /* DTrace next pc from fasttrap */
	239	user_addr_t t_dtrace_scrpc; /* DTrace per-thread scratch location */
	240	user_addr_t t_dtrace_astpc; /* DTrace return sequence location */
	241
	242	struct dtrace_ptss_page_entry* t_dtrace_scratch; /* scratch space entry */
	243
	244	#if __sol64 \|\| defined(__APPLE__)
	245	uint64_t t_dtrace_regv; /* DTrace saved reg from fasttrap */
	246	#endif
316670eb	247	void * t_dtrace_syscall_args;
2d21ac55 A	248	#endif /* CONFIG_DTRACE */
2d21ac55 A	249	void * uu_threadlist;
b0d623f7	250	char * pth_name;
316670eb	251	struct label * uu_label; /* MAC label */
1c79356b	252	};
0b4e3aa0	253
1c79356b	254	typedef struct uthread * uthread_t;
9bccf70c A	255
9bccf70c A	256	/* Definition of uu_flag */
91447636 A	257	#define UT_SAS_OLDMASK 0x00000001 /* need to restore mask before pause */
	258	#define UT_NO_SIGMASK 0x00000002 /* exited thread; invalid sigmask */
	259	#define UT_NOTCANCELPT 0x00000004 /* not a cancelation point */
	260	#define UT_CANCEL 0x00000008 /* thread marked for cancel */
	261	#define UT_CANCELED 0x00000010 /* thread cancelled */
	262	#define UT_CANCELDISABLE 0x00000020 /* thread cancel disabled */
2d21ac55 A	263	#define UT_ALTSTACK 0x00000040 /* this thread has alt stack for signals */
	264	#define UT_THROTTLE_IO 0x00000080 /* this thread issues throttle I/O */
	265	#define UT_PASSIVE_IO 0x00000100 /* this thread issues passive I/O */
	266	#define UT_PROCEXIT 0x00000200 /* this thread completed the proc exit */
	267	#define UT_RAGE_VNODES 0x00000400 /* rapid age any vnodes created by this thread */
316670eb	268	/* 0x00000800 unused, used to be UT_BACKGROUND */
39236c6e	269	/* 0x00001000 unused, used to be UT_BACKGROUND_TRAFFIC_MGT */
91447636 A	270
	271	#define UT_VFORK 0x02000000 /* thread has vfork children */
	272	#define UT_SETUID 0x04000000 /* thread is settugid() */
	273	#define UT_WASSETUID 0x08000000 /* thread was settugid() (in vfork) */
39236c6e	274	#define UT_VFORKING 0x10000000 /* thread in vfork() syscall */
9bccf70c	275
2d21ac55 A	276	#endif /* BSD_KERNEL_PRIVATE */
2d21ac55 A	277
9bccf70c A	278	#endif /* __APPLE_API_PRIVATE */
9bccf70c A	279
1c79356b A	280	#endif /* KERNEL */
	281
	282	/*
	283	* Per process structure containing data that isn't needed in core
	284	* when the process isn't running (esp. when swapped out).
	285	* This structure may or may not be at the same kernel address
	286	* in all processes.
	287	*/
	288
	289	struct user {
	290	/* NOT USED ANYMORE */
	291	};
	292
	293	#endif /* !_SYS_USER_H_ */