1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/* $NetBSD: trap.h,v 1.11 1999/01/20 00:15:08 pk Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratory.
*
* 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.
*
* @(#)trap.h 8.1 (Berkeley) 6/11/93
*/
/*
* Sun4m support by Aaron Brown, Harvard University.
* Changes Copyright (c) 1995 The President and Fellows of Harvard College.
* All rights reserved.
*/
#ifndef _MACHINE_TRAP_H
#define _MACHINE_TRAP_H
/* trap vec (pri) description */
#define T_RESET 0x00 /* (1) not actually vectored; jumps to 0 */
#define T_TEXTFAULT 0x01 /* (2) address fault during instr fetch */
#define T_ILLINST 0x02 /* (3) illegal instruction */
#define T_PRIVINST 0x03 /* (4) privileged instruction */
#define T_FPDISABLED 0x04 /* (5) fp instr while fp disabled */
#define T_WINOF 0x05 /* (6) register window overflow */
#define T_WINUF 0x06 /* (7) register window underflow */
#define T_ALIGN 0x07 /* (8) address not properly aligned */
#define T_FPE 0x08 /* (9) floating point exception */
#define T_DATAFAULT 0x09 /* (10) address fault during data fetch */
#define T_TAGOF 0x0a /* (11) tag overflow */
/* 0x0b unused */
/* 0x0c unused */
/* 0x0d unused */
/* 0x0e unused */
/* 0x0f unused */
/* 0x10 unused */
#define T_L1INT 0x11 /* (27) level 1 interrupt */
#define T_L2INT 0x12 /* (26) level 2 interrupt */
#define T_L3INT 0x13 /* (25) level 3 interrupt */
#define T_L4INT 0x14 /* (24) level 4 interrupt */
#define T_L5INT 0x15 /* (23) level 5 interrupt */
#define T_L6INT 0x16 /* (22) level 6 interrupt */
#define T_L7INT 0x17 /* (21) level 7 interrupt */
#define T_L8INT 0x18 /* (20) level 8 interrupt */
#define T_L9INT 0x19 /* (19) level 9 interrupt */
#define T_L10INT 0x1a /* (18) level 10 interrupt */
#define T_L11INT 0x1b /* (17) level 11 interrupt */
#define T_L12INT 0x1c /* (16) level 12 interrupt */
#define T_L13INT 0x1d /* (15) level 13 interrupt */
#define T_L14INT 0x1e /* (14) level 14 interrupt */
#define T_L15INT 0x1f /* (13) level 15 interrupt */
/* 0x20 unused */
/* through 0x23 unused */
#define T_CPDISABLED 0x24 /* (5) coprocessor instr while disabled */
#define T_UNIMPLFLUSH 0x25 /* Unimplemented FLUSH */
/* through 0x27 unused */
#define T_CPEXCEPTION 0x28 /* (9) coprocessor exception */
/* 0x29 unused */
#define T_IDIV0 0x2a /* divide by zero (from hw [su]div instr) */
#define T_STOREBUFFAULT 0x2b /* SuperSPARC: Store buffer copy-back fault */
/* 0x2c unused */
/* through 0x7f unused */
/* beginning of `user' vectors (from trap instructions) - all priority 12 */
#define T_SUN_SYSCALL 0x80 /* system call */
#define T_BREAKPOINT 0x81 /* breakpoint `instruction' */
#define T_DIV0 0x82 /* division routine was handed 0 */
#define T_FLUSHWIN 0x83 /* flush windows */
#define T_CLEANWIN 0x84 /* provide clean windows */
#define T_RANGECHECK 0x85 /* ? */
#define T_FIXALIGN 0x86 /* fix up unaligned accesses */
#define T_INTOF 0x87 /* integer overflow ? */
#define T_SVR4_SYSCALL 0x88 /* SVR4 system call */
#define T_BSD_SYSCALL 0x89 /* BSD system call */
#define T_KGDB_EXEC 0x8a /* for kernel gdb */
/* 0x8b..0xff are currently unallocated, except the following */
#define T_SVR4_GETCC 0xa0
#define T_SVR4_SETCC 0xa1
#define T_SVR4_GETPSR 0xa2
#define T_SVR4_SETPSR 0xa3
#define T_SVR4_GETHRTIME 0xa4
#define T_SVR4_GETHRVTIME 0xa5
#define T_SVR4_GETHRESTIME 0xa7
#ifdef _KERNEL /* pseudo traps for locore.s */
#define T_RWRET -1 /* need first user window for trap return */
#define T_AST -2 /* no-op, just needed reschedule or profile */
#endif
/* flags to system call (flags in %g1 along with syscall number) */
#define SYSCALL_G2RFLAG 0x400 /* on success, return to %g2 rather than npc */
#define SYSCALL_G7RFLAG 0x800 /* use %g7 as above (deprecated) */
/*
* `software trap' macros to keep people happy (sparc v8 manual says not
* to set the upper bits).
*/
#define ST_BREAKPOINT (T_BREAKPOINT & 0x7f)
#define ST_DIV0 (T_DIV0 & 0x7f)
#define ST_FLUSHWIN (T_FLUSHWIN & 0x7f)
#define ST_SYSCALL (T_SUN_SYSCALL & 0x7f)
#endif /* _MACHINE_TRAP_H_ */
|
