trap.h revision 5
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 * @(#)trap.h 5.4 (Berkeley) 5/9/91 37 */ 38 39/* 40 * Trap type values 41 * also known in trap.c for name strings 42 */ 43 44#define T_RESADFLT 0 /* reserved addressing */ 45#define T_PRIVINFLT 1 /* privileged instruction */ 46#define T_RESOPFLT 2 /* reserved operand */ 47#define T_BPTFLT 3 /* breakpoint instruction */ 48#define T_SYSCALL 5 /* system call (kcall) */ 49#define T_ARITHTRAP 6 /* arithmetic trap */ 50#define T_ASTFLT 7 /* system forced exception */ 51#define T_SEGFLT 8 /* segmentation (limit) fault */ 52#define T_PROTFLT 9 /* protection fault */ 53#define T_TRCTRAP 10 /* trace trap */ 54#define T_PAGEFLT 12 /* page fault */ 55#define T_TABLEFLT 13 /* page table fault */ 56#define T_ALIGNFLT 14 /* alignment fault */ 57#define T_KSPNOTVAL 15 /* kernel stack pointer not valid */ 58#define T_BUSERR 16 /* bus error */ 59#define T_KDBTRAP 17 /* kernel debugger trap */ 60 61#define T_DIVIDE 18 /* integer divide fault */ 62#define T_NMI 19 /* non-maskable trap */ 63#define T_OFLOW 20 /* overflow trap */ 64#define T_BOUND 21 /* bound instruction fault */ 65#define T_DNA 22 /* device not available fault */ 66#define T_DOUBLEFLT 23 /* double fault */ 67#define T_FPOPFLT 24 /* fp coprocessor operand fetch fault */ 68#define T_TSSFLT 25 /* invalid tss fault */ 69#define T_SEGNPFLT 26 /* segment not present fault */ 70#define T_STKFLT 27 /* stack fault */ 71#define T_RESERVED 28 /* reserved fault base */ 72 73/* definitions for <sys/signal.h> */ 74#define ILL_RESAD_FAULT T_RESADFLT 75#define ILL_PRIVIN_FAULT T_PRIVINFLT 76#define ILL_RESOP_FAULT T_RESOPFLT 77#define ILL_ALIGN_FAULT T_ALIGNFLT 78#define ILL_FPOP_FAULT T_FPOPFLT /* coprocessor operand fault */ 79 80/* codes for SIGFPE/ARITHTRAP */ 81#define FPE_INTOVF_TRAP 0x1 /* integer overflow */ 82#define FPE_INTDIV_TRAP 0x2 /* integer divide by zero */ 83#define FPE_FLTDIV_TRAP 0x3 /* floating/decimal divide by zero */ 84#define FPE_FLTOVF_TRAP 0x4 /* floating overflow */ 85#define FPE_FLTUND_TRAP 0x5 /* floating underflow */ 86#define FPE_FPU_NP_TRAP 0x6 /* floating point unit not present */ 87#define FPE_SUBRNG_TRAP 0x7 /* subrange out of bounds */ 88 89/* codes for SIGBUS */ 90#define BUS_PAGE_FAULT T_PAGEFLT /* page fault protection base */ 91#define BUS_SEGNP_FAULT T_SEGNPFLT /* segment not present */ 92#define BUS_STK_FAULT T_STKFLT /* stack segment */ 93#define BUS_SEGM_FAULT T_RESERVED /* segment protection base */ 94 95/* Trap's coming from user mode */ 96#define T_USER 0x100 97