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	1	/*
	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	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.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	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.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* @OSF_COPYRIGHT@
	24	*/
	25
	26	#ifndef _MACH_PPC_THREAD_STATUS_H_
	27	#define _MACH_PPC_THREAD_STATUS_H_
	28
	29	#include <mach/ppc/_types.h>
	30	#include <mach/message.h>
	31
	32	/*
	33	* ppc_thread_state is the structure that is exported to user threads for
	34	* use in status/mutate calls. This structure should never change.
	35	*
	36	*/
	37
	38	#define PPC_THREAD_STATE 1
	39	#define PPC_FLOAT_STATE 2
	40	#define PPC_EXCEPTION_STATE 3
	41	#define PPC_VECTOR_STATE 4
	42	#define PPC_THREAD_STATE64 5
	43	#define PPC_EXCEPTION_STATE64 6
	44	#define THREAD_STATE_NONE 7
	45
	46	/*
	47	* VALID_THREAD_STATE_FLAVOR is a platform specific macro that when passed
	48	* an exception flavor will return whether that is a defined flavor for
	49	* that platform.
	50	* The macro must be manually updated to include all of the valid exception
	51	* flavors as defined above.
	52	*/
	53	#define VALID_THREAD_STATE_FLAVOR(x) \
	54	((x == PPC_THREAD_STATE) \|\| \
	55	(x == PPC_FLOAT_STATE) \|\| \
	56	(x == PPC_EXCEPTION_STATE) \|\| \
	57	(x == PPC_VECTOR_STATE) \|\| \
	58	(x == PPC_THREAD_STATE64) \|\| \
	59	(x == PPC_EXCEPTION_STATE64) \|\| \
	60	(x == THREAD_STATE_NONE))
	61
	62	#ifndef _POSIX_C_SOURCE
	63	typedef struct ppc_thread_state ppc_thread_state_t;
	64	#else /* _POSIX_C_SOURCE */
	65	typedef struct __darwin_ppc_thread_state ppc_thread_state_t;
	66	#endif /* _POSIX_C_SOURCE */
	67
	68	#ifndef _POSIX_C_SOURCE
	69	typedef struct ppc_thread_state64 ppc_thread_state64_t;
	70	#endif /* _POSIX_C_SOURCE */
	71
	72	#ifndef _POSIX_C_SOURCE
	73	typedef struct ppc_float_state ppc_float_state_t;
	74	#else /* _POSIX_C_SOURCE */
	75	typedef struct __darwin_ppc_float_state ppc_float_state_t;
	76	#endif /* _POSIX_C_SOURCE */
	77
	78	#ifndef _POSIX_C_SOURCE
	79	typedef struct ppc_vector_state ppc_vector_state_t;
	80	#else /* _POSIX_C_SOURCE */
	81	typedef struct __darwin_ppc_vector_state ppc_vector_state_t;
	82	#endif /* _POSIX_C_SOURCE */
	83
	84	/*
	85	* saved state structure
	86	*
	87	* This structure corresponds to the saved state.
	88	*
	89	*/
	90
	91	#ifdef MACH__POSIX_C_SOURCE_PRIVATE
	92
	93	#include <ppc/savearea.h>
	94
	95	typedef struct savearea ppc_saved_state_t;
	96
	97	#else /* MACH__POSIX_C_SOURCE_PRIVATE */
	98
	99	typedef struct ppc_thread_state ppc_saved_state_t;
	100
	101	#endif /* MACH__POSIX_C_SOURCE_PRIVATE */
	102
	103	/*
	104	* ppc_exception_state
	105	*
	106	* This structure corresponds to some additional state of the user
	107	* registers as saved in the PCB upon kernel entry. They are only
	108	* available if an exception is passed out of the kernel, and even
	109	* then not all are guaranteed to be updated.
	110	*
	111	* Some padding is included in this structure which allows space for
	112	* servers to store temporary values if need be, to maintain binary
	113	* compatiblity.
	114	*/
	115
	116	/* Exception state for 32-bit thread (on 32-bit processor) */
	117	/* Still available on 64-bit processors, but may fall short */
	118	/* of covering the full potential state (hi half available). */
	119
	120	#ifndef _POSIX_C_SOURCE
	121	typedef struct ppc_exception_state ppc_exception_state_t;
	122	typedef struct ppc_exception_state64 ppc_exception_state64_t;
	123	#else /* _POSIX_C_SOURCE */
	124	typedef struct __darwin_ppc_exception_state ppc_exception_state_t;
	125	#endif /* _POSIX_C_SOURCE */
	126
	127	/*
	128	* Save State Flags
	129	*/
	130
	131	#define PPC_THREAD_STATE_COUNT ((mach_msg_type_number_t) \
	132	(sizeof(ppc_thread_state_t) / sizeof(int)))
	133
	134	#define PPC_THREAD_STATE64_COUNT ((mach_msg_type_number_t) \
	135	(sizeof(ppc_thread_state64_t) / sizeof(int)))
	136
	137	#define PPC_EXCEPTION_STATE_COUNT ((mach_msg_type_number_t) \
	138	(sizeof(ppc_exception_state_t) / sizeof(int)))
	139
	140	#define PPC_EXCEPTION_STATE64_COUNT ((mach_msg_type_number_t) \
	141	(sizeof(ppc_exception_state64_t) / sizeof(int)))
	142
	143	#define PPC_FLOAT_STATE_COUNT ((mach_msg_type_number_t) \
	144	(sizeof(ppc_float_state_t) / sizeof(int)))
	145
	146	#define PPC_VECTOR_STATE_COUNT ((mach_msg_type_number_t) \
	147	(sizeof(ppc_vector_state_t) / sizeof(int)))
	148
	149	/*
	150	* Machine-independent way for servers and Mach's exception mechanism to
	151	* choose the most efficient state flavor for exception RPC's:
	152	*/
	153	#define MACHINE_THREAD_STATE PPC_THREAD_STATE
	154	#define MACHINE_THREAD_STATE_COUNT PPC_THREAD_STATE_COUNT
	155
	156	/*
	157	* Largest state on this machine:
	158	*/
	159	#define THREAD_MACHINE_STATE_MAX THREAD_STATE_MAX
	160
	161	#endif /* _MACH_PPC_THREAD_STATUS_H_ */