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/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
*
* from: @(#)trap.h 5.4 (Berkeley) 5/9/91
* $Id: trap.h,v 1.8 1999/07/25 13:16:08 cracauer Exp $
*/
#ifndef _MACHINE_TRAP_H_
#define _MACHINE_TRAP_H_
/*
* Trap type values
* also known in trap.c for name strings
*/
#define T_PRIVINFLT 1 /* privileged instruction */
#define T_BPTFLT 3 /* breakpoint instruction */
#define T_ARITHTRAP 6 /* arithmetic trap */
#define T_ASTFLT 7 /* system forced exception */
#define T_PROTFLT 9 /* protection fault */
#define T_TRCTRAP 10 /* debug exception (sic) */
#define T_PAGEFLT 12 /* page fault */
#define T_ALIGNFLT 14 /* alignment fault */
#define T_DIVIDE 18 /* integer divide fault */
#define T_NMI 19 /* non-maskable trap */
#define T_OFLOW 20 /* overflow trap */
#define T_BOUND 21 /* bound instruction fault */
#define T_DNA 22 /* device not available fault */
#define T_DOUBLEFLT 23 /* double fault */
#define T_FPOPFLT 24 /* fp coprocessor operand fetch fault */
#define T_TSSFLT 25 /* invalid tss fault */
#define T_SEGNPFLT 26 /* segment not present fault */
#define T_STKFLT 27 /* stack fault */
#define T_MCHK 28 /* machine check trap */
#define T_RESERVED 29 /* reserved (unknown) */
/* XXX most of the following codes aren't used, but could be. */
/* definitions for <sys/signal.h> */
#define ILL_RESAD_FAULT T_RESADFLT
#define ILL_PRIVIN_FAULT T_PRIVINFLT
#define ILL_RESOP_FAULT T_RESOPFLT
#define ILL_ALIGN_FAULT T_ALIGNFLT
#define ILL_FPOP_FAULT T_FPOPFLT /* coprocessor operand fault */
/* portable macros for SIGFPE/ARITHTRAP */
#define FPE_INTDIV 1 /* integer divide by zero */
#define FPE_INTOVF 2 /* integer overflow */
#define FPE_FLTDIV 3 /* floating point divide by zero */
#define FPE_FLTOVF 4 /* floating point overflow */
#define FPE_FLTUND 5 /* floating point underflow */
#define FPE_FLTRES 6 /* floating point inexact result */
#define FPE_FLTINV 7 /* invalid floating point operation */
#define FPE_FLTSUB 8 /* subscript out of range */
/* old FreeBSD macros, deprecated */
#define FPE_INTOVF_TRAP 0x1 /* integer overflow */
#define FPE_INTDIV_TRAP 0x2 /* integer divide by zero */
#define FPE_FLTDIV_TRAP 0x3 /* floating/decimal divide by zero */
#define FPE_FLTOVF_TRAP 0x4 /* floating overflow */
#define FPE_FLTUND_TRAP 0x5 /* floating underflow */
#define FPE_FPU_NP_TRAP 0x6 /* floating point unit not present */
#define FPE_SUBRNG_TRAP 0x7 /* subrange out of bounds */
/* codes for SIGBUS */
#define BUS_PAGE_FAULT T_PAGEFLT /* page fault protection base */
#define BUS_SEGNP_FAULT T_SEGNPFLT /* segment not present */
#define BUS_STK_FAULT T_STKFLT /* stack segment */
#define BUS_SEGM_FAULT T_RESERVED /* segment protection base */
/* Trap's coming from user mode */
#define T_USER 0x100
#endif /* !_MACHINE_TRAP_H_ */
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