[apple/xnu.git] / osfmk / mach / i386 / thread_status.h

/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */
/*
 */
/*
 *	File:	thread_status.h
 *	Author:	Avadis Tevanian, Jr.
 *	Date:	1985
 *
 *	This file contains the structure definitions for the thread
 *	state as applied to I386 processors.
 */

#ifndef	_MACH_I386_THREAD_STATUS_H_
#define _MACH_I386_THREAD_STATUS_H_

#include <mach/message.h>
#include <mach/i386/fp_reg.h>
#include <mach/i386/thread_state.h>
#include <architecture/i386/frame.h>	/* FIXME */
#include <architecture/i386/fpu.h>	/* FIXME */
/*
 *	i386_thread_state	this is the structure that is exported
 *				to user threads for use in status/mutate
 *				calls.  This structure should never
 *				change.
 *
 *	i386_float_state	exported to use threads for access to 
 *				floating point registers. Try not to 
 *				change this one, either.
 *
 *	i386_isa_port_map_state	exported to user threads to allow
 *				selective in/out operations
 *
 * 	i386_v86_assist_state 
 *
 *	thread_syscall_state 
 */

/*     THREAD_STATE_FLAVOR_LIST 0 */
#define i386_NEW_THREAD_STATE	1	/* used to be i386_THREAD_STATE */
#define i386_FLOAT_STATE	2
#define i386_ISA_PORT_MAP_STATE	3
#define i386_V86_ASSIST_STATE	4
#define i386_REGS_SEGS_STATE	5
#define THREAD_SYSCALL_STATE	6
#define THREAD_STATE_NONE	7
#define i386_SAVED_STATE	8


/*
 * VALID_THREAD_STATE_FLAVOR is a platform specific macro that when passed
 * an exception flavor will return if that is a defined flavor for that
 * platform. The macro must be manually updated to include all of the valid
 * exception flavors as defined above.
 */
#define VALID_THREAD_STATE_FLAVOR(x)            \
        ((x == i386_NEW_THREAD_STATE)        || \
	 (x == i386_FLOAT_STATE)             || \
	 (x == i386_ISA_PORT_MAP_STATE)      || \
	 (x == i386_V86_ASSIST_STATE)        || \
	 (x == i386_REGS_SEGS_STATE)         || \
	 (x == THREAD_SYSCALL_STATE)         || \
	 (x == THREAD_STATE_NONE)            || \
	 (x == i386_SAVED_STATE))

/*
 * This structure is used for both
 * i386_THREAD_STATE and i386_REGS_SEGS_STATE.
 */
struct i386_new_thread_state {
	unsigned int	gs;
	unsigned int	fs;
	unsigned int	es;
	unsigned int	ds;
	unsigned int	edi;
	unsigned int	esi;
	unsigned int	ebp;
	unsigned int	esp;
	unsigned int	ebx;
	unsigned int	edx;
	unsigned int	ecx;
	unsigned int	eax;
	unsigned int	eip;
	unsigned int	cs;
	unsigned int	efl;
	unsigned int	uesp;
	unsigned int	ss;
};
#define i386_NEW_THREAD_STATE_COUNT	((mach_msg_type_number_t) \
		(sizeof (struct i386_new_thread_state)/sizeof(unsigned int)))

/*
 * Subset of saved state stored by processor on kernel-to-kernel
 * trap.  (Used by ddb to examine state guaranteed to be present
 * on all traps into debugger.)
 */
struct i386_saved_state_from_kernel {
	unsigned int	gs;
	unsigned int	fs;
	unsigned int	es;
	unsigned int	ds;
	unsigned int	edi;
	unsigned int	esi;
	unsigned int	ebp;
	unsigned int	esp;		/* kernel esp stored by pusha -
					   we save cr2 here later */
	unsigned int	ebx;
	unsigned int	edx;
	unsigned int	ecx;
	unsigned int	eax;
	unsigned int	trapno;
	unsigned int	err;
	unsigned int	eip;
	unsigned int	cs;
	unsigned int	efl;
};

/*
 * The format in which thread state is saved by Mach on this machine.  This
 * state flavor is most efficient for exception RPC's to kernel-loaded
 * servers, because copying can be avoided:
 */
struct i386_saved_state {
	unsigned int	gs;
	unsigned int	fs;
	unsigned int	es;
	unsigned int	ds;
	unsigned int	edi;
	unsigned int	esi;
	unsigned int	ebp;
	unsigned int	esp;		/* kernel esp stored by pusha -
					   we save cr2 here later */
	unsigned int	ebx;
	unsigned int	edx;
	unsigned int	ecx;
	unsigned int	eax;
	unsigned int	trapno;
	unsigned int	err;
	unsigned int	eip;
	unsigned int	cs;
	unsigned int	efl;
	unsigned int	uesp;
	unsigned int	ss;
	struct v86_segs {
	    unsigned int v86_es;	/* virtual 8086 segment registers */
	    unsigned int v86_ds;
	    unsigned int v86_fs;
	    unsigned int v86_gs;
	} v86_segs;
#define i386_SAVED_ARGV_COUNT	7
	unsigned int	argv_status;	/* Boolean flag indicating whether or
					 * not Mach copied in the args */
	unsigned int	argv[i386_SAVED_ARGV_COUNT];
					/* The return address, and the first several
					 * function call args from the stack, for
					 * efficient syscall exceptions */
};
#define i386_SAVED_STATE_COUNT	((mach_msg_type_number_t) \
	(sizeof (struct i386_saved_state)/sizeof(unsigned int)))
#define i386_REGS_SEGS_STATE_COUNT	i386_SAVED_STATE_COUNT

/*
 * Machine-independent way for servers and Mach's exception mechanism to
 * choose the most efficient state flavor for exception RPC's:
 */
#define MACHINE_THREAD_STATE		i386_SAVED_STATE
#define MACHINE_THREAD_STATE_COUNT	144

/*
 * Largest state on this machine:
 * (be sure mach/machine/thread_state.h matches!)
 */
#define THREAD_MACHINE_STATE_MAX	THREAD_STATE_MAX

/* 
 * Floating point state.
 *
 * fpkind tells in what way floating point operations are supported.  
 * See the values for fp_kind in <mach/i386/fp_reg.h>.
 * 
 * If the kind is FP_NO, then calls to set the state will fail, and 
 * thread_getstatus will return garbage for the rest of the state.
 * If "initialized" is false, then the rest of the state is garbage.  
 * Clients can set "initialized" to false to force the coprocessor to 
 * be reset.
 * "exc_status" is non-zero if the thread has noticed (but not 
 * proceeded from) a coprocessor exception.  It contains the status 
 * word with the exception bits set.  The status word in "fp_status" 
 * will have the exception bits turned off.  If an exception bit in 
 * "fp_status" is turned on, then "exc_status" should be zero.  This 
 * happens when the coprocessor exception is noticed after the system 
 * has context switched to some other thread.
 * 
 * If kind is FP_387, then "state" is a i387_state.  Other kinds might
 * also use i387_state, but somebody will have to verify it (XXX).
 * Note that the registers are ordered from top-of-stack down, not
 * according to physical register number.
 */

#define FP_STATE_BYTES 512

struct i386_float_state {
	int		fpkind;			/* FP_NO..FP_387 (readonly) */
	int		initialized;
	unsigned char	hw_state[FP_STATE_BYTES]; /* actual "hardware" state */
	int		exc_status;		/* exception status (readonly) */
};
#define i386_FLOAT_STATE_COUNT ((mach_msg_type_number_t) \
		(sizeof(struct i386_float_state)/sizeof(unsigned int)))


#define FP_old_STATE_BYTES ((mach_msg_type_number_t) \
	(sizeof (struct i386_fp_save) + sizeof (struct i386_fp_regs)))

struct i386_old_float_state {
	int		fpkind;			/* FP_NO..FP_387 (readonly) */
	int		initialized;
	unsigned char	hw_state[FP_old_STATE_BYTES]; /* actual "hardware" state */
	int		exc_status;		/* exception status (readonly) */
};
#define i386_old_FLOAT_STATE_COUNT ((mach_msg_type_number_t) \
		(sizeof(struct i386_old_float_state)/sizeof(unsigned int)))


#define PORT_MAP_BITS 0x400
struct i386_isa_port_map_state {
	unsigned char	pm[PORT_MAP_BITS>>3];
};

#define i386_ISA_PORT_MAP_STATE_COUNT ((mach_msg_type_number_t) \
		(sizeof(struct i386_isa_port_map_state)/sizeof(unsigned int)))

/*
 * V8086 assist supplies a pointer to an interrupt
 * descriptor table in task space.
 */
struct i386_v86_assist_state {
	unsigned int	int_table;	/* interrupt table address */
	int		int_count;	/* interrupt table size */
};

struct v86_interrupt_table {
	unsigned int	count;	/* count of pending interrupts */
	unsigned short	mask;	/* ignore this interrupt if true */
	unsigned short	vec;	/* vector to take */
};

#define	i386_V86_ASSIST_STATE_COUNT ((mach_msg_type_number_t) \
	    (sizeof(struct i386_v86_assist_state)/sizeof(unsigned int)))

struct thread_syscall_state {
	unsigned eax;
	unsigned edx;
	unsigned efl;
	unsigned eip;
	unsigned esp;
};

#define i386_THREAD_SYSCALL_STATE_COUNT ((mach_msg_type_number_t) \
		(sizeof(struct thread_syscall_state) / sizeof(unsigned int)))

/*
 * Main thread state consists of
 * general registers, segment registers,
 * eip and eflags.
 */

#define i386_THREAD_STATE	-1

typedef struct {
    unsigned int	eax;
    unsigned int	ebx;
    unsigned int	ecx;
    unsigned int	edx;
    unsigned int	edi;
    unsigned int	esi;
    unsigned int	ebp;
    unsigned int	esp;
    unsigned int	ss;
    unsigned int	eflags;
    unsigned int	eip;
    unsigned int	cs;
    unsigned int	ds;
    unsigned int	es;
    unsigned int	fs;
    unsigned int	gs;
} i386_thread_state_t;

#define i386_THREAD_STATE_COUNT	((mach_msg_type_number_t) \
    ( sizeof (i386_thread_state_t) / sizeof (int) ))

/*
 * Default segment register values.
 */
    
#define USER_CODE_SELECTOR	0x0017
#define USER_DATA_SELECTOR	0x001f
#define KERN_CODE_SELECTOR	0x0008
#define KERN_DATA_SELECTOR	0x0010

/*
 * Thread floating point state
 * includes FPU environment as
 * well as the register stack.
 */
 
#define i386_THREAD_FPSTATE	-2

typedef struct {
    fp_env_t		environ;
    fp_stack_t		stack;
} i386_thread_fpstate_t;

#define i386_THREAD_FPSTATE_COUNT ((mach_msg_type_number_t)	\
    ( sizeof (i386_thread_fpstate_t) / sizeof (int) ))

/*
 * Extra state that may be
 * useful to exception handlers.
 */

#define i386_THREAD_EXCEPTSTATE	-3

typedef struct {
    unsigned int	trapno;
    err_code_t		err;
} i386_thread_exceptstate_t;

#define i386_THREAD_EXCEPTSTATE_COUNT	((mach_msg_type_number_t) \
    ( sizeof (i386_thread_exceptstate_t) / sizeof (int) ))

/*
 * Per-thread variable used
 * to store 'self' id for cthreads.
 */
 
#define i386_THREAD_CTHREADSTATE	-4
 
typedef struct {
    unsigned int	self;
} i386_thread_cthreadstate_t;

#define i386_THREAD_CTHREADSTATE_COUNT	((mach_msg_type_number_t) \
    ( sizeof (i386_thread_cthreadstate_t) / sizeof (int) ))

#endif	/* _MACH_I386_THREAD_STATUS_H_ */
Commit	Line	Data
1c79356b	1	/*
91447636	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
e5568f75 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
43866e37	11	*
e5568f75 A	12	* This Original Code and all software distributed under the License are
e5568f75 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
e5568f75 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* @OSF_COPYRIGHT@
	24	*/
	25	/*
	26	* Mach Operating System
	27	* Copyright (c) 1991,1990,1989 Carnegie Mellon University
	28	* All Rights Reserved.
	29	*
	30	* Permission to use, copy, modify and distribute this software and its
	31	* documentation is hereby granted, provided that both the copyright
	32	* notice and this permission notice appear in all copies of the
	33	* software, derivative works or modified versions, and any portions
	34	* thereof, and that both notices appear in supporting documentation.
	35	*
	36	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	37	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	38	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	39	*
	40	* Carnegie Mellon requests users of this software to return to
	41	*
	42	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	43	* School of Computer Science
	44	* Carnegie Mellon University
	45	* Pittsburgh PA 15213-3890
	46	*
	47	* any improvements or extensions that they make and grant Carnegie Mellon
	48	* the rights to redistribute these changes.
	49	*/
	50	/*
	51	*/
	52	/*
	53	* File: thread_status.h
	54	* Author: Avadis Tevanian, Jr.
	55	* Date: 1985
	56	*
	57	* This file contains the structure definitions for the thread
	58	* state as applied to I386 processors.
	59	*/
	60
	61	#ifndef _MACH_I386_THREAD_STATUS_H_
	62	#define _MACH_I386_THREAD_STATUS_H_
	63
91447636	64	#include <mach/message.h>
1c79356b A	65	#include <mach/i386/fp_reg.h>
	66	#include <mach/i386/thread_state.h>
	67	#include <architecture/i386/frame.h> /* FIXME */
	68	#include <architecture/i386/fpu.h> /* FIXME */
	69	/*
	70	* i386_thread_state this is the structure that is exported
	71	* to user threads for use in status/mutate
	72	* calls. This structure should never
	73	* change.
	74	*
	75	* i386_float_state exported to use threads for access to
	76	* floating point registers. Try not to
	77	* change this one, either.
	78	*
	79	* i386_isa_port_map_state exported to user threads to allow
	80	* selective in/out operations
	81	*
	82	* i386_v86_assist_state
	83	*
	84	* thread_syscall_state
	85	*/
	86
	87	/* THREAD_STATE_FLAVOR_LIST 0 */
	88	#define i386_NEW_THREAD_STATE 1 /* used to be i386_THREAD_STATE */
	89	#define i386_FLOAT_STATE 2
	90	#define i386_ISA_PORT_MAP_STATE 3
	91	#define i386_V86_ASSIST_STATE 4
	92	#define i386_REGS_SEGS_STATE 5
	93	#define THREAD_SYSCALL_STATE 6
	94	#define THREAD_STATE_NONE 7
	95	#define i386_SAVED_STATE 8
	96
	97
	98	/*
	99	* VALID_THREAD_STATE_FLAVOR is a platform specific macro that when passed
	100	* an exception flavor will return if that is a defined flavor for that
	101	* platform. The macro must be manually updated to include all of the valid
	102	* exception flavors as defined above.
	103	*/
	104	#define VALID_THREAD_STATE_FLAVOR(x) \
	105	((x == i386_NEW_THREAD_STATE) \|\| \
	106	(x == i386_FLOAT_STATE) \|\| \
	107	(x == i386_ISA_PORT_MAP_STATE) \|\| \
	108	(x == i386_V86_ASSIST_STATE) \|\| \
	109	(x == i386_REGS_SEGS_STATE) \|\| \
	110	(x == THREAD_SYSCALL_STATE) \|\| \
	111	(x == THREAD_STATE_NONE) \|\| \
	112	(x == i386_SAVED_STATE))
	113
	114	/*
	115	* This structure is used for both
	116	* i386_THREAD_STATE and i386_REGS_SEGS_STATE.
	117	*/
	118	struct i386_new_thread_state {
	119	unsigned int gs;
	120	unsigned int fs;
	121	unsigned int es;
	122	unsigned int ds;
	123	unsigned int edi;
	124	unsigned int esi;
	125	unsigned int ebp;
	126	unsigned int esp;
	127	unsigned int ebx;
	128	unsigned int edx;
129	unsigned int ecx;
130	unsigned int eax;
131	unsigned int eip;
132	unsigned int cs;
133	unsigned int efl;
134	unsigned int uesp;
135	unsigned int ss;
136	};
91447636 A	137	#define i386_NEW_THREAD_STATE_COUNT ((mach_msg_type_number_t) \
91447636 A	138	(sizeof (struct i386_new_thread_state)/sizeof(unsigned int)))
1c79356b A	139
	140	/*
	141	* Subset of saved state stored by processor on kernel-to-kernel
	142	* trap. (Used by ddb to examine state guaranteed to be present
	143	* on all traps into debugger.)
	144	*/
	145	struct i386_saved_state_from_kernel {
	146	unsigned int gs;
	147	unsigned int fs;
	148	unsigned int es;
	149	unsigned int ds;
	150	unsigned int edi;
	151	unsigned int esi;
	152	unsigned int ebp;
	153	unsigned int esp; /* kernel esp stored by pusha -
	154	we save cr2 here later */
	155	unsigned int ebx;
	156	unsigned int edx;
	157	unsigned int ecx;
	158	unsigned int eax;
	159	unsigned int trapno;
	160	unsigned int err;
	161	unsigned int eip;
	162	unsigned int cs;
	163	unsigned int efl;
	164	};
	165
	166	/*
	167	* The format in which thread state is saved by Mach on this machine. This
	168	* state flavor is most efficient for exception RPC's to kernel-loaded
	169	* servers, because copying can be avoided:
	170	*/
	171	struct i386_saved_state {
	172	unsigned int gs;
	173	unsigned int fs;
	174	unsigned int es;
	175	unsigned int ds;
	176	unsigned int edi;
	177	unsigned int esi;
	178	unsigned int ebp;
	179	unsigned int esp; /* kernel esp stored by pusha -
	180	we save cr2 here later */
	181	unsigned int ebx;
	182	unsigned int edx;
	183	unsigned int ecx;
	184	unsigned int eax;
	185	unsigned int trapno;
	186	unsigned int err;
	187	unsigned int eip;
	188	unsigned int cs;
	189	unsigned int efl;
	190	unsigned int uesp;
	191	unsigned int ss;
	192	struct v86_segs {
	193	unsigned int v86_es; /* virtual 8086 segment registers */
	194	unsigned int v86_ds;
	195	unsigned int v86_fs;
	196	unsigned int v86_gs;
	197	} v86_segs;
	198	#define i386_SAVED_ARGV_COUNT 7
	199	unsigned int argv_status; /* Boolean flag indicating whether or
	200	* not Mach copied in the args */
	201	unsigned int argv[i386_SAVED_ARGV_COUNT];
	202	/* The return address, and the first several
203	* function call args from the stack, for
204	* efficient syscall exceptions */
205	};
91447636 A	206	#define i386_SAVED_STATE_COUNT ((mach_msg_type_number_t) \
91447636 A	207	(sizeof (struct i386_saved_state)/sizeof(unsigned int)))
1c79356b A	208	#define i386_REGS_SEGS_STATE_COUNT i386_SAVED_STATE_COUNT
	209
	210	/*
	211	* Machine-independent way for servers and Mach's exception mechanism to
	212	* choose the most efficient state flavor for exception RPC's:
	213	*/
	214	#define MACHINE_THREAD_STATE i386_SAVED_STATE
55e303ae	215	#define MACHINE_THREAD_STATE_COUNT 144
1c79356b A	216
	217	/*
	218	* Largest state on this machine:
	219	* (be sure mach/machine/thread_state.h matches!)
	220	*/
55e303ae	221	#define THREAD_MACHINE_STATE_MAX THREAD_STATE_MAX
1c79356b A	222
	223	/*
	224	* Floating point state.
	225	*
	226	* fpkind tells in what way floating point operations are supported.
	227	* See the values for fp_kind in <mach/i386/fp_reg.h>.
	228	*
	229	* If the kind is FP_NO, then calls to set the state will fail, and
	230	* thread_getstatus will return garbage for the rest of the state.
	231	* If "initialized" is false, then the rest of the state is garbage.
	232	* Clients can set "initialized" to false to force the coprocessor to
	233	* be reset.
	234	* "exc_status" is non-zero if the thread has noticed (but not
	235	* proceeded from) a coprocessor exception. It contains the status
	236	* word with the exception bits set. The status word in "fp_status"
	237	* will have the exception bits turned off. If an exception bit in
	238	* "fp_status" is turned on, then "exc_status" should be zero. This
	239	* happens when the coprocessor exception is noticed after the system
	240	* has context switched to some other thread.
	241	*
	242	* If kind is FP_387, then "state" is a i387_state. Other kinds might
	243	* also use i387_state, but somebody will have to verify it (XXX).
	244	* Note that the registers are ordered from top-of-stack down, not
	245	* according to physical register number.
	246	*/
	247
55e303ae	248	#define FP_STATE_BYTES 512
1c79356b A	249
	250	struct i386_float_state {
	251	int fpkind; /* FP_NO..FP_387 (readonly) */
	252	int initialized;
	253	unsigned char hw_state[FP_STATE_BYTES]; /* actual "hardware" state */
	254	int exc_status; /* exception status (readonly) */
	255	};
91447636 A	256	#define i386_FLOAT_STATE_COUNT ((mach_msg_type_number_t) \
91447636 A	257	(sizeof(struct i386_float_state)/sizeof(unsigned int)))
1c79356b A	258
1c79356b A	259
91447636 A	260	#define FP_old_STATE_BYTES ((mach_msg_type_number_t) \
91447636 A	261	(sizeof (struct i386_fp_save) + sizeof (struct i386_fp_regs)))
55e303ae A	262
	263	struct i386_old_float_state {
	264	int fpkind; /* FP_NO..FP_387 (readonly) */
	265	int initialized;
	266	unsigned char hw_state[FP_old_STATE_BYTES]; /* actual "hardware" state */
	267	int exc_status; /* exception status (readonly) */
	268	};
91447636 A	269	#define i386_old_FLOAT_STATE_COUNT ((mach_msg_type_number_t) \
91447636 A	270	(sizeof(struct i386_old_float_state)/sizeof(unsigned int)))
55e303ae A	271
55e303ae A	272
1c79356b A	273	#define PORT_MAP_BITS 0x400
	274	struct i386_isa_port_map_state {
	275	unsigned char pm[PORT_MAP_BITS>>3];
	276	};
	277
91447636 A	278	#define i386_ISA_PORT_MAP_STATE_COUNT ((mach_msg_type_number_t) \
91447636 A	279	(sizeof(struct i386_isa_port_map_state)/sizeof(unsigned int)))
1c79356b A	280
	281	/*
	282	* V8086 assist supplies a pointer to an interrupt
	283	* descriptor table in task space.
	284	*/
	285	struct i386_v86_assist_state {
	286	unsigned int int_table; /* interrupt table address */
	287	int int_count; /* interrupt table size */
	288	};
	289
	290	struct v86_interrupt_table {
	291	unsigned int count; /* count of pending interrupts */
	292	unsigned short mask; /* ignore this interrupt if true */
	293	unsigned short vec; /* vector to take */
	294	};
	295
91447636 A	296	#define i386_V86_ASSIST_STATE_COUNT ((mach_msg_type_number_t) \
91447636 A	297	(sizeof(struct i386_v86_assist_state)/sizeof(unsigned int)))
1c79356b A	298
	299	struct thread_syscall_state {
	300	unsigned eax;
	301	unsigned edx;
	302	unsigned efl;
	303	unsigned eip;
	304	unsigned esp;
	305	};
	306
91447636 A	307	#define i386_THREAD_SYSCALL_STATE_COUNT ((mach_msg_type_number_t) \
91447636 A	308	(sizeof(struct thread_syscall_state) / sizeof(unsigned int)))
1c79356b A	309
	310	/*
	311	* Main thread state consists of
	312	* general registers, segment registers,
	313	* eip and eflags.
	314	*/
	315
	316	#define i386_THREAD_STATE -1
	317
	318	typedef struct {
	319	unsigned int eax;
	320	unsigned int ebx;
	321	unsigned int ecx;
	322	unsigned int edx;
	323	unsigned int edi;
	324	unsigned int esi;
	325	unsigned int ebp;
	326	unsigned int esp;
	327	unsigned int ss;
	328	unsigned int eflags;
	329	unsigned int eip;
	330	unsigned int cs;
	331	unsigned int ds;
	332	unsigned int es;
	333	unsigned int fs;
	334	unsigned int gs;
	335	} i386_thread_state_t;
	336
91447636 A	337	#define i386_THREAD_STATE_COUNT ((mach_msg_type_number_t) \
91447636 A	338	( sizeof (i386_thread_state_t) / sizeof (int) ))
1c79356b A	339
	340	/*
	341	* Default segment register values.
	342	*/
	343
	344	#define USER_CODE_SELECTOR 0x0017
	345	#define USER_DATA_SELECTOR 0x001f
	346	#define KERN_CODE_SELECTOR 0x0008
	347	#define KERN_DATA_SELECTOR 0x0010
	348
	349	/*
	350	* Thread floating point state
	351	* includes FPU environment as
	352	* well as the register stack.
	353	*/
	354
	355	#define i386_THREAD_FPSTATE -2
	356
	357	typedef struct {
	358	fp_env_t environ;
	359	fp_stack_t stack;
	360	} i386_thread_fpstate_t;
	361
91447636 A	362	#define i386_THREAD_FPSTATE_COUNT ((mach_msg_type_number_t) \
91447636 A	363	( sizeof (i386_thread_fpstate_t) / sizeof (int) ))
1c79356b A	364
	365	/*
	366	* Extra state that may be
	367	* useful to exception handlers.
	368	*/
	369
	370	#define i386_THREAD_EXCEPTSTATE -3
	371
	372	typedef struct {
	373	unsigned int trapno;
	374	err_code_t err;
	375	} i386_thread_exceptstate_t;
	376
91447636 A	377	#define i386_THREAD_EXCEPTSTATE_COUNT ((mach_msg_type_number_t) \
91447636 A	378	( sizeof (i386_thread_exceptstate_t) / sizeof (int) ))
1c79356b A	379
	380	/*
	381	* Per-thread variable used
	382	* to store 'self' id for cthreads.
	383	*/
	384
	385	#define i386_THREAD_CTHREADSTATE -4
	386
	387	typedef struct {
	388	unsigned int self;
	389	} i386_thread_cthreadstate_t;
	390
91447636 A	391	#define i386_THREAD_CTHREADSTATE_COUNT ((mach_msg_type_number_t) \
91447636 A	392	( sizeof (i386_thread_cthreadstate_t) / sizeof (int) ))
1c79356b A	393
1c79356b A	394	#endif /* _MACH_I386_THREAD_STATUS_H_ */