1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 23 /* All Rights Reserved */ 24 25 /* 26 * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 * 29 * Copyright 2018 Joyent, Inc. 30 */ 31 32 #ifndef _SYS_TRAP_H 33 #define _SYS_TRAP_H 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 /* 40 * Trap type values 41 */ 42 43 #define T_ZERODIV 0x0 /* #de divide by 0 error */ 44 #define T_SGLSTP 0x1 /* #db single step */ 45 #define T_NMIFLT 0x2 /* NMI */ 46 #define T_BPTFLT 0x3 /* #bp breakpoint fault, INT3 insn */ 47 #define T_OVFLW 0x4 /* #of INTO overflow fault */ 48 #define T_BOUNDFLT 0x5 /* #br BOUND insn fault */ 49 #define T_ILLINST 0x6 /* #ud invalid opcode fault */ 50 #define T_NOEXTFLT 0x7 /* #nm device not available: x87 */ 51 #define T_DBLFLT 0x8 /* #df double fault */ 52 #define T_EXTOVRFLT 0x9 /* [not generated: 386 only] */ 53 #define T_TSSFLT 0xa /* #ts invalid TSS fault */ 54 #define T_SEGFLT 0xb /* #np segment not present fault */ 55 #define T_STKFLT 0xc /* #ss stack fault */ 56 #define T_GPFLT 0xd /* #gp general protection fault */ 57 #define T_PGFLT 0xe /* #pf page fault */ 58 #define T_RESVTRAP 0xf /* reserved */ 59 #define T_EXTERRFLT 0x10 /* #mf x87 FPU error fault */ 60 #define T_ALIGNMENT 0x11 /* #ac alignment check error */ 61 #define T_MCE 0x12 /* #mc machine check exception */ 62 #define T_SIMDFPE 0x13 /* #xm SSE/SSE exception */ 63 #define T_DBGENTR 0x14 /* debugger entry */ 64 #define T_INVALTRAP 0x1e /* invalid */ 65 #define T_ENDPERR 0x21 /* emulated extension error flt */ 66 #define T_ENOEXTFLT 0x20 /* emulated ext not present */ 67 #define T_FASTTRAP 0xd2 /* fast system call */ 68 #define T_SYSCALLINT 0x91 /* general system call */ 69 #define T_DTRACE_RET 0x92 /* DTrace pid return */ 70 #define T_INT80 0x80 /* int80 handler for linux emulation */ 71 #define T_SOFTINT 0x50fd /* pseudo softint trap type */ 72 73 /* 74 * Pseudo traps. 75 */ 76 #define T_INTERRUPT 0x100 77 #define T_FAULT 0x200 78 #define T_AST 0x400 79 #define T_SYSCALL 0x180 80 81 82 /* 83 * Values of error code on stack in case of page fault 84 */ 85 86 #define PF_ERR_MASK 0x01 /* Mask for error bit */ 87 #define PF_ERR_PAGE 0x00 /* page not present */ 88 #define PF_ERR_PROT 0x01 /* protection error */ 89 #define PF_ERR_WRITE 0x02 /* fault caused by write (else read) */ 90 #define PF_ERR_USER 0x04 /* processor was in user mode */ 91 /* (else supervisor) */ 92 #define PF_ERR_EXEC 0x10 /* attempt to execute a No eXec page (AMD) */ 93 /* or kernel tried to execute a user page */ 94 /* (Intel SMEP) */ 95 96 /* 97 * Definitions for fast system call subfunctions 98 */ 99 #define T_FNULL 0 /* Null trap for testing */ 100 #define T_FGETFP 1 /* Get emulated FP context */ 101 #define T_FSETFP 2 /* Set emulated FP context */ 102 #define T_GETHRTIME 3 /* Get high resolution time */ 103 #define T_GETHRVTIME 4 /* Get high resolution virtual time */ 104 #define T_GETHRESTIME 5 /* Get high resolution time */ 105 #define T_GETLGRP 6 /* Get home lgrpid */ 106 107 #define T_LASTFAST 6 /* Last valid subfunction */ 108 109 /* 110 * Offsets for an interrupt/trap frame. 111 */ 112 #define T_FRAME_ERR 0 113 #define T_FRAME_RIP 8 114 #define T_FRAME_CS 16 115 #define T_FRAME_RFLAGS 24 116 #define T_FRAME_RSP 32 117 #define T_FRAME_SS 40 118 119 #define T_FRAMERET_RIP 0 120 #define T_FRAMERET_CS 8 121 #define T_FRAMERET_RFLAGS 16 122 #define T_FRAMERET_RSP 24 123 #define T_FRAMERET_SS 32 124 125 #ifdef __cplusplus 126 } 127 #endif 128 129 #endif /* _SYS_TRAP_H */ 130