trap.h revision 128019
1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * from: @(#)trap.h 5.4 (Berkeley) 5/9/91 33 * $FreeBSD: head/sys/i386/include/trap.h 128019 2004-04-07 20:46:16Z imp $ 34 */ 35 36#ifndef _MACHINE_TRAP_H_ 37#define _MACHINE_TRAP_H_ 38 39/* 40 * Trap type values 41 * also known in trap.c for name strings 42 */ 43 44#define T_PRIVINFLT 1 /* privileged instruction */ 45#define T_BPTFLT 3 /* breakpoint instruction */ 46#define T_ARITHTRAP 6 /* arithmetic trap */ 47#define T_PROTFLT 9 /* protection fault */ 48#define T_TRCTRAP 10 /* debug exception (sic) */ 49#define T_PAGEFLT 12 /* page fault */ 50#define T_ALIGNFLT 14 /* alignment fault */ 51 52#define T_DIVIDE 18 /* integer divide fault */ 53#define T_NMI 19 /* non-maskable trap */ 54#define T_OFLOW 20 /* overflow trap */ 55#define T_BOUND 21 /* bound instruction fault */ 56#define T_DNA 22 /* device not available fault */ 57#define T_DOUBLEFLT 23 /* double fault */ 58#define T_FPOPFLT 24 /* fp coprocessor operand fetch fault */ 59#define T_TSSFLT 25 /* invalid tss fault */ 60#define T_SEGNPFLT 26 /* segment not present fault */ 61#define T_STKFLT 27 /* stack fault */ 62#define T_MCHK 28 /* machine check trap */ 63#define T_XMMFLT 29 /* SIMD floating-point exception */ 64#define T_RESERVED 30 /* reserved (unknown) */ 65 66/* XXX most of the following codes aren't used, but could be. */ 67 68/* definitions for <sys/signal.h> */ 69#define ILL_RESAD_FAULT T_RESADFLT 70#define ILL_PRIVIN_FAULT T_PRIVINFLT 71#define ILL_RESOP_FAULT T_RESOPFLT 72#define ILL_ALIGN_FAULT T_ALIGNFLT 73#define ILL_FPOP_FAULT T_FPOPFLT /* coprocessor operand fault */ 74 75/* portable macros for SIGFPE/ARITHTRAP */ 76#define FPE_INTOVF 1 /* integer overflow */ 77#define FPE_INTDIV 2 /* integer divide by zero */ 78#define FPE_FLTDIV 3 /* floating point divide by zero */ 79#define FPE_FLTOVF 4 /* floating point overflow */ 80#define FPE_FLTUND 5 /* floating point underflow */ 81#define FPE_FLTRES 6 /* floating point inexact result */ 82#define FPE_FLTINV 7 /* invalid floating point operation */ 83#define FPE_FLTSUB 8 /* subscript out of range */ 84 85/* old FreeBSD macros, deprecated */ 86#define FPE_INTOVF_TRAP 0x1 /* integer overflow */ 87#define FPE_INTDIV_TRAP 0x2 /* integer divide by zero */ 88#define FPE_FLTDIV_TRAP 0x3 /* floating/decimal divide by zero */ 89#define FPE_FLTOVF_TRAP 0x4 /* floating overflow */ 90#define FPE_FLTUND_TRAP 0x5 /* floating underflow */ 91#define FPE_FPU_NP_TRAP 0x6 /* floating point unit not present */ 92#define FPE_SUBRNG_TRAP 0x7 /* subrange out of bounds */ 93 94/* codes for SIGBUS */ 95#define BUS_PAGE_FAULT T_PAGEFLT /* page fault protection base */ 96#define BUS_SEGNP_FAULT T_SEGNPFLT /* segment not present */ 97#define BUS_STK_FAULT T_STKFLT /* stack segment */ 98#define BUS_SEGM_FAULT T_RESERVED /* segment protection base */ 99 100/* Trap's coming from user mode */ 101#define T_USER 0x100 102 103#endif /* !_MACHINE_TRAP_H_ */ 104