[apple/xnu.git] / bsd / ppc / setjmp.h

/*
 * Copyright (c) 2000-2004 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@
 */
/* Copyright (c) 1998 Apple Computer, Inc.  All rights reserved.
 *
 *	File:	ppc/setjmp.h
 *
 *	Declaration of setjmp routines and data structures.
 */
#ifndef _BSD_PPC_SETJMP_H_
#define _BSD_PPC_SETJMP_H_

#include <sys/cdefs.h>
#include <machine/signal.h>

struct _jmp_buf {
	struct sigcontext	sigcontext; /* kernel state preserved by set/longjmp */
	unsigned int vmask __attribute__((aligned(8))); /* vector mask register */
	unsigned int vreg[32 * 4] __attribute__((aligned(16)));
		/* 32 128-bit vector registers */
};

/*
 *	_JBLEN is number of ints required to save the following:
 *	r1, r2, r13-r31, lr, cr, ctr, xer, sig  == 26 register_t sized
 *	fr14 -  fr31 = 18 doubles
 *	vmask, 32 vector registers = 129 ints
 *	2 ints to get all the elements aligned 
 *
 *	register_t is 2 ints for ppc64 threads
 */
#define _JBLEN64	(26*2 + 18*2 + 129 + 1)
#define _JBLEN32	(26 + 18*2 + 129 + 1)
#define _JBLEN_MAX	_JBLEN64

/*
 * Locally scoped sizes
 */
#if defined(__ppc64__)
#define _JBLEN _JBLEN64
#else
#define _JBLEN _JBLEN32
#endif

#if defined(KERNEL)
typedef struct sigcontext32 jmp_buf32[1];
typedef struct __sigjmp_buf32 {
		int __storage[_JBLEN32 + 1] __attribute__((aligned(8)));
		} sigjmp_buf32[1];

typedef struct sigcontext64 jmp_buf64[1];
typedef struct __sigjmp_buf64 {
		int __storage[_JBLEN64 + 1] __attribute__((aligned(8)));
		} sigjmp_buf64[1];

/*
 * JMM - have to decide how the kernel will deal with this.
 * For now, hard-code the 32-bit types.
 */
typedef struct sigcontext32 jmp_buf[1];
typedef struct __sigjmp_buf32 sigjmp_buf[1];

#else
typedef int jmp_buf[_JBLEN];
typedef int sigjmp_buf[_JBLEN + 1];
#endif

__BEGIN_DECLS
extern int setjmp(jmp_buf env);
extern void longjmp(jmp_buf env, int val);

#ifndef _ANSI_SOURCE
int	_setjmp(jmp_buf env);
void	_longjmp(jmp_buf, int val);
int sigsetjmp(sigjmp_buf env, int val);
void siglongjmp(sigjmp_buf env, int val);
#endif /* _ANSI_SOURCE  */

#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE)
void	longjmperror(void);
#endif /* neither ANSI nor POSIX */
__END_DECLS

#endif /* !_BSD_PPC_SETJMP_H_ */
Commit	Line	Data
1c79356b	1	/*
91447636	2	* Copyright (c) 2000-2004 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.
1c79356b	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	/* Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
	23	*
	24	* File: ppc/setjmp.h
	25	*
	26	* Declaration of setjmp routines and data structures.
	27	*/
	28	#ifndef _BSD_PPC_SETJMP_H_
	29	#define _BSD_PPC_SETJMP_H_
	30
	31	#include <sys/cdefs.h>
	32	#include <machine/signal.h>
	33
	34	struct _jmp_buf {
	35	struct sigcontext sigcontext; /* kernel state preserved by set/longjmp */
91447636 A	36	unsigned int vmask __attribute__((aligned(8))); /* vector mask register */
91447636 A	37	unsigned int vreg[32 * 4] __attribute__((aligned(16)));
1c79356b A	38	/* 32 128-bit vector registers */
	39	};
	40
	41	/*
	42	* _JBLEN is number of ints required to save the following:
91447636 A	43	* r1, r2, r13-r31, lr, cr, ctr, xer, sig == 26 register_t sized
91447636 A	44	* fr14 - fr31 = 18 doubles
1c79356b A	45	* vmask, 32 vector registers = 129 ints
1c79356b A	46	* 2 ints to get all the elements aligned
91447636 A	47	*
91447636 A	48	* register_t is 2 ints for ppc64 threads
1c79356b	49	*/
91447636 A	50	#define _JBLEN64 (262 + 182 + 129 + 1)
	51	#define _JBLEN32 (26 + 18*2 + 129 + 1)
	52	#define _JBLEN_MAX _JBLEN64
1c79356b	53
91447636 A	54	/*
	55	* Locally scoped sizes
	56	*/
	57	#if defined(__ppc64__)
	58	#define _JBLEN _JBLEN64
	59	#else
	60	#define _JBLEN _JBLEN32
	61	#endif
1c79356b A	62
1c79356b A	63	#if defined(KERNEL)
91447636 A	64	typedef struct sigcontext32 jmp_buf32[1];
	65	typedef struct __sigjmp_buf32 {
	66	int __storage[_JBLEN32 + 1] __attribute__((aligned(8)));
	67	} sigjmp_buf32[1];
	68
	69	typedef struct sigcontext64 jmp_buf64[1];
	70	typedef struct __sigjmp_buf64 {
	71	int __storage[_JBLEN64 + 1] __attribute__((aligned(8)));
	72	} sigjmp_buf64[1];
	73
	74	/*
	75	* JMM - have to decide how the kernel will deal with this.
	76	* For now, hard-code the 32-bit types.
	77	*/
	78	typedef struct sigcontext32 jmp_buf[1];
	79	typedef struct __sigjmp_buf32 sigjmp_buf[1];
	80
1c79356b A	81	#else
	82	typedef int jmp_buf[_JBLEN];
	83	typedef int sigjmp_buf[_JBLEN + 1];
	84	#endif
	85
	86	__BEGIN_DECLS
91447636 A	87	extern int setjmp(jmp_buf env);
91447636 A	88	extern void longjmp(jmp_buf env, int val);
1c79356b A	89
1c79356b A	90	#ifndef _ANSI_SOURCE
91447636 A	91	int _setjmp(jmp_buf env);
	92	void _longjmp(jmp_buf, int val);
	93	int sigsetjmp(sigjmp_buf env, int val);
	94	void siglongjmp(sigjmp_buf env, int val);
1c79356b A	95	#endif /* _ANSI_SOURCE */
1c79356b A	96
91447636 A	97	#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE)
91447636 A	98	void longjmperror(void);
1c79356b A	99	#endif /* neither ANSI nor POSIX */
	100	__END_DECLS
	101
	102	#endif /* !_BSD_PPC_SETJMP_H_ */