1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef	_FASTTRAP_ISA_H
28#define	_FASTTRAP_ISA_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <sys/types.h>
33
34#ifdef	__cplusplus
35extern "C" {
36#endif
37
38/*
39 * This is our reserved trap instruction: ta 0x38
40 */
41#define	FASTTRAP_INSTR			0x91d02038
42
43#define	FASTTRAP_SUNWDTRACE_SIZE	128
44
45typedef uint32_t	fasttrap_instr_t;
46
47typedef struct fasttrap_machtp {
48	fasttrap_instr_t	ftmt_instr;	/* original instruction */
49	uintptr_t		ftmt_dest;	/* destination of DCTI */
50	uint8_t			ftmt_type;	/* emulation type */
51	uint8_t			ftmt_flags;	/* emulation flags */
52	uint8_t			ftmt_cc;	/* which cc to look at */
53	uint8_t			ftmt_code;	/* branch condition */
54} fasttrap_machtp_t;
55
56#define	ftt_instr	ftt_mtp.ftmt_instr
57#define	ftt_dest	ftt_mtp.ftmt_dest
58#define	ftt_type	ftt_mtp.ftmt_type
59#define	ftt_flags	ftt_mtp.ftmt_flags
60#define	ftt_cc		ftt_mtp.ftmt_cc
61#define	ftt_code	ftt_mtp.ftmt_code
62
63#define	FASTTRAP_T_COMMON	0x00	/* common case -- no emulation */
64#define	FASTTRAP_T_CCR		0x01	/* integer condition code branch */
65#define	FASTTRAP_T_FCC		0x02	/* floating-point branch */
66#define	FASTTRAP_T_REG		0x03	/* register predicated branch */
67#define	FASTTRAP_T_ALWAYS	0x04	/* branch always */
68#define	FASTTRAP_T_CALL		0x05	/* call instruction */
69#define	FASTTRAP_T_JMPL		0x06	/* jmpl instruction */
70#define	FASTTRAP_T_RDPC		0x07	/* rdpc instruction */
71#define	FASTTRAP_T_RETURN	0x08	/* return instruction */
72
73/*
74 * For performance rather than correctness.
75 */
76#define	FASTTRAP_T_SAVE		0x10	/* save instruction (func entry only) */
77#define	FASTTRAP_T_RESTORE	0x11	/* restore instruction */
78#define	FASTTRAP_T_OR		0x12	/* mov instruction */
79#define	FASTTRAP_T_SETHI	0x13	/* sethi instruction (includes nop) */
80
81#define	FASTTRAP_F_ANNUL	0x01	/* branch is annulled */
82#define	FASTTRAP_F_RETMAYBE	0x02	/* not definitely a return site */
83
84#define	FASTTRAP_AFRAMES		3
85#define	FASTTRAP_RETURN_AFRAMES		4
86#define	FASTTRAP_ENTRY_AFRAMES		3
87#define	FASTTRAP_OFFSET_AFRAMES		3
88
89
90#ifdef	__cplusplus
91}
92#endif
93
94#endif	/* _FASTTRAP_ISA_H */
95