1 /* $NetBSD: trap.h,v 1.18 2000/06/04 02:19:26 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)trap.h 5.4 (Berkeley) 5/9/91 39 */ 40 41 /* 42 * Trap type values 43 * also known in trap.c for name strings 44 */ 45 #ifndef _VAX_TRAP_H_ 46 #define _VAX_TRAP_H_ 47 48 #define T_RESADFLT 0 /* reserved addressing */ 49 #define T_PRIVINFLT 1 /* privileged instruction */ 50 #define T_RESOPFLT 2 /* reserved operand */ 51 #define T_BPTFLT 3 /* breakpoint instruction */ 52 #define T_XFCFLT 4 /* Customer reserved instruction */ 53 #define T_SYSCALL 5 /* system call (kcall) */ 54 #define T_ARITHFLT 6 /* arithmetic trap */ 55 #define T_ASTFLT 7 /* system forced exception */ 56 #define T_PTELEN 8 /* Page table length exceeded */ 57 #define T_TRANSFLT 9 /* translation fault */ 58 #define T_TRCTRAP 10 /* trace trap */ 59 #define T_COMPAT 11 /* compatibility mode fault on VAX */ 60 #define T_ACCFLT 12 /* Access violation fault */ 61 #define T_KSPNOTVAL 15 /* kernel stack pointer not valid */ 62 #define T_KDBTRAP 17 /* kernel debugger trap */ 63 64 /* These gets ORed with the word for page handling routines */ 65 #define T_WRITE 0x80 66 #define T_PTEFETCH 0x40 67 68 /* Trap's coming from user mode */ 69 #define T_USER 0x100 70 71 #ifndef _LOCORE 72 struct trapframe { 73 long fp; /* Stack frame pointer */ 74 long ap; /* Argument pointer on user stack */ 75 long sp; /* Stack pointer */ 76 long r0; /* General registers saved upon trap/syscall */ 77 long r1; 78 long r2; 79 long r3; 80 long r4; 81 long r5; 82 long r6; 83 long r7; 84 long r8; 85 long r9; 86 long r10; 87 long r11; 88 long trap; /* Type of trap */ 89 long code; /* Trap specific code */ 90 long pc; /* User pc */ 91 long psl; /* User psl */ 92 }; 93 94 #endif /* _LOCORE */ 95 96 #endif /* _VAX_TRAP_H_ */ 97