| 1 | /* $NetBSD: trap.h,v 1.2 2003/08/07 16:30:33 agc 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. Neither the name of the University nor the names of its contributors |
| 19 | * may be used to endorse or promote products derived from this software |
| 20 | * without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 32 | * SUCH DAMAGE. |
| 33 | * |
| 34 | * @(#)trap.h 5.4 (Berkeley) 5/9/91 |
| 35 | */ |
| 36 | |
| 37 | /* |
| 38 | * Trap type values |
| 39 | * also known in trap.c for name strings |
| 40 | */ |
| 41 | |
| 42 | #define T_PRIVINFLT 0 /* privileged instruction */ |
| 43 | #define T_BPTFLT 1 /* breakpoint trap */ |
| 44 | #define T_ARITHTRAP 2 /* arithmetic trap */ |
| 45 | #define T_ASTFLT 3 /* asynchronous system trap */ |
| 46 | #define T_PROTFLT 4 /* protection fault */ |
| 47 | #define T_TRCTRAP 5 /* trace trap */ |
| 48 | #define T_PAGEFLT 6 /* page fault */ |
| 49 | #define T_ALIGNFLT 7 /* alignment fault */ |
| 50 | #define T_DIVIDE 8 /* integer divide fault */ |
| 51 | #define T_NMI 9 /* non-maskable interrupt */ |
| 52 | #define T_OFLOW 10 /* overflow trap */ |
| 53 | #define T_BOUND 11 /* bounds check fault */ |
| 54 | #define T_DNA 12 /* device not available fault */ |
| 55 | #define T_DOUBLEFLT 13 /* double fault */ |
| 56 | #define T_FPOPFLT 14 /* fp coprocessor operand fetch fault */ |
| 57 | #define T_TSSFLT 15 /* invalid tss fault */ |
| 58 | #define T_SEGNPFLT 16 /* segment not present fault */ |
| 59 | #define T_STKFLT 17 /* stack fault */ |
| 60 | #define T_MCA 18 /* machine check */ |
| 61 | #define T_XMM 19 /* SSE FP exception */ |
| 62 | #define T_RESERVED 20 /* reserved fault base */ |
| 63 | |
| 64 | /* Trap's coming from user mode */ |
| 65 | #define T_USER 0x100 |
| 66 | |
| 67 | /* Flags kludged into the trap code */ |
| 68 | |
| 69 | #define TC_TSS 0x80000000 |
| 70 | #define TC_FLAGMASK (TC_TSS) |
| 71 | |