trap.h revision 17520
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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)trap.h 5.4 (Berkeley) 5/9/91 37 * $Id: trap.h,v 1.4 1995/01/14 13:20:26 bde Exp $ 38 */ 39 40#ifndef _MACHINE_TRAP_H_ 41#define _MACHINE_TRAP_H_ 42 43/* 44 * Trap type values 45 * also known in trap.c for name strings 46 */ 47 48#define T_PRIVINFLT 1 /* privileged instruction */ 49#define T_BPTFLT 3 /* breakpoint instruction */ 50#define T_ARITHTRAP 6 /* arithmetic trap */ 51#define T_ASTFLT 7 /* system forced exception */ 52#define T_PROTFLT 9 /* protection fault */ 53#define T_TRCTRAP 10 /* debug exception (sic) */ 54#define T_PAGEFLT 12 /* page fault */ 55#define T_ALIGNFLT 14 /* alignment fault */ 56 57#define T_DIVIDE 18 /* integer divide fault */ 58#define T_NMI 19 /* non-maskable trap */ 59#define T_OFLOW 20 /* overflow trap */ 60#define T_BOUND 21 /* bound instruction fault */ 61#define T_DNA 22 /* device not available fault */ 62#define T_DOUBLEFLT 23 /* double fault */ 63#define T_FPOPFLT 24 /* fp coprocessor operand fetch fault */ 64#define T_TSSFLT 25 /* invalid tss fault */ 65#define T_SEGNPFLT 26 /* segment not present fault */ 66#define T_STKFLT 27 /* stack fault */ 67#define T_MCHK 28 /* machine check trap */ 68#define T_RESERVED 29 /* reserved (unknown) */ 69 70/* XXX most of the following codes aren't used, but could be. */ 71 72/* definitions for <sys/signal.h> */ 73#define ILL_RESAD_FAULT T_RESADFLT 74#define ILL_PRIVIN_FAULT T_PRIVINFLT 75#define ILL_RESOP_FAULT T_RESOPFLT 76#define ILL_ALIGN_FAULT T_ALIGNFLT 77#define ILL_FPOP_FAULT T_FPOPFLT /* coprocessor operand fault */ 78 79/* codes for SIGFPE/ARITHTRAP */ 80#define FPE_INTOVF_TRAP 0x1 /* integer overflow */ 81#define FPE_INTDIV_TRAP 0x2 /* integer divide by zero */ 82#define FPE_FLTDIV_TRAP 0x3 /* floating/decimal divide by zero */ 83#define FPE_FLTOVF_TRAP 0x4 /* floating overflow */ 84#define FPE_FLTUND_TRAP 0x5 /* floating underflow */ 85#define FPE_FPU_NP_TRAP 0x6 /* floating point unit not present */ 86#define FPE_SUBRNG_TRAP 0x7 /* subrange out of bounds */ 87 88/* codes for SIGBUS */ 89#define BUS_PAGE_FAULT T_PAGEFLT /* page fault protection base */ 90#define BUS_SEGNP_FAULT T_SEGNPFLT /* segment not present */ 91#define BUS_STK_FAULT T_STKFLT /* stack segment */ 92#define BUS_SEGM_FAULT T_RESERVED /* segment protection base */ 93 94/* Trap's coming from user mode */ 95#define T_USER 0x100 96 97#endif /* !_MACHINE_TRAP_H_ */ 98