trap.S revision 1.1
1 /* $NetBSD: trap.S,v 1.1 2017/10/10 09:29:14 maxv Exp $ */ 2 3 /* 4 * Copyright (c) 2017 The NetBSD Foundation, Inc. All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Maxime Villard. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #define _KERNEL 32 33 /* Override user-land alignment before including asm.h */ 34 #define ALIGN_DATA .align 8 35 #define ALIGN_TEXT .align 16,0x90 36 #define _ALIGN_TEXT ALIGN_TEXT 37 38 #include <machine/asm.h> 39 40 #include <machine/trap.h> 41 42 #define TRAPENTRY(a) \ 43 pushq $(a); \ 44 jmp _C_LABEL(alltraps); 45 46 #define ZTRAPENTRY(a) \ 47 pushq $0; \ 48 pushq $(a); \ 49 jmp _C_LABEL(alltraps); 50 51 .text 52 53 IDTVEC(trap00) 54 ZTRAPENTRY(T_DIVIDE) 55 IDTVEC_END(trap00) 56 57 IDTVEC(trap01) 58 ZTRAPENTRY(T_TRCTRAP) 59 IDTVEC_END(trap01) 60 61 IDTVEC(trap02) 62 ZTRAPENTRY(T_NMI) 63 IDTVEC_END(trap02) 64 65 IDTVEC(trap03) 66 ZTRAPENTRY(T_BPTFLT) 67 IDTVEC_END(trap03) 68 69 IDTVEC(trap04) 70 ZTRAPENTRY(T_OFLOW) 71 IDTVEC_END(trap04) 72 73 IDTVEC(trap05) 74 ZTRAPENTRY(T_BOUND) 75 IDTVEC_END(trap05) 76 77 IDTVEC(trap06) 78 ZTRAPENTRY(T_PRIVINFLT) 79 IDTVEC_END(trap06) 80 81 IDTVEC(trap07) 82 ZTRAPENTRY(T_DNA) 83 IDTVEC_END(trap07) 84 85 IDTVEC(trap08) 86 TRAPENTRY(T_DOUBLEFLT) 87 IDTVEC_END(trap08) 88 89 IDTVEC(trap09) 90 ZTRAPENTRY(T_FPOPFLT) 91 IDTVEC_END(trap09) 92 93 IDTVEC(trap0a) 94 TRAPENTRY(T_TSSFLT) 95 IDTVEC_END(trap0a) 96 97 IDTVEC(trap0b) /* #NP() Segment not present */ 98 ZTRAPENTRY(T_SEGNPFLT) 99 IDTVEC_END(trap0b) 100 101 IDTVEC(trap0c) /* #SS() Stack exception */ 102 ZTRAPENTRY(T_STKFLT) 103 IDTVEC_END(trap0c) 104 105 IDTVEC(trap0d) /* #GP() General protection */ 106 ZTRAPENTRY(T_PROTFLT) 107 IDTVEC_END(trap0d) 108 109 IDTVEC(trap0e) 110 TRAPENTRY(T_PAGEFLT) 111 IDTVEC_END(trap0e) 112 113 IDTVEC(trap0f) 114 ZTRAPENTRY(T_ASTFLT) 115 IDTVEC_END(trap0f) 116 117 IDTVEC(trap10) 118 ZTRAPENTRY(T_ARITHTRAP) 119 IDTVEC_END(trap10) 120 121 IDTVEC(trap11) 122 TRAPENTRY(T_ALIGNFLT) 123 IDTVEC_END(trap11) 124 125 IDTVEC(trap12) 126 ZTRAPENTRY(T_MCA) 127 IDTVEC_END(trap12) 128 129 IDTVEC(trap13) 130 ZTRAPENTRY(T_XMM) 131 IDTVEC_END(trap13) 132 133 IDTVEC(trap14) 134 IDTVEC(trap15) 135 IDTVEC(trap16) 136 IDTVEC(trap17) 137 IDTVEC(trap18) 138 IDTVEC(trap19) 139 IDTVEC(trap1a) 140 IDTVEC(trap1b) 141 IDTVEC(trap1c) 142 IDTVEC(trap1d) 143 IDTVEC(trap1e) 144 IDTVEC(trap1f) 145 /* 20 - 31 reserved for future exp */ 146 ZTRAPENTRY(T_RESERVED) 147 IDTVEC_END(trap1f) 148 IDTVEC_END(trap1e) 149 IDTVEC_END(trap1d) 150 IDTVEC_END(trap1c) 151 IDTVEC_END(trap1b) 152 IDTVEC_END(trap1a) 153 IDTVEC_END(trap19) 154 IDTVEC_END(trap18) 155 IDTVEC_END(trap17) 156 IDTVEC_END(trap16) 157 IDTVEC_END(trap15) 158 IDTVEC_END(trap14) 159 160 IDTVEC(exceptions) 161 .quad _C_LABEL(Xtrap00), _C_LABEL(Xtrap01) 162 .quad _C_LABEL(Xtrap02), _C_LABEL(Xtrap03) 163 .quad _C_LABEL(Xtrap04), _C_LABEL(Xtrap05) 164 .quad _C_LABEL(Xtrap06), _C_LABEL(Xtrap07) 165 .quad _C_LABEL(Xtrap08), _C_LABEL(Xtrap09) 166 .quad _C_LABEL(Xtrap0a), _C_LABEL(Xtrap0b) 167 .quad _C_LABEL(Xtrap0c), _C_LABEL(Xtrap0d) 168 .quad _C_LABEL(Xtrap0e), _C_LABEL(Xtrap0f) 169 .quad _C_LABEL(Xtrap10), _C_LABEL(Xtrap11) 170 .quad _C_LABEL(Xtrap12), _C_LABEL(Xtrap13) 171 .quad _C_LABEL(Xtrap14), _C_LABEL(Xtrap15) 172 .quad _C_LABEL(Xtrap16), _C_LABEL(Xtrap17) 173 .quad _C_LABEL(Xtrap18), _C_LABEL(Xtrap19) 174 .quad _C_LABEL(Xtrap1a), _C_LABEL(Xtrap1b) 175 .quad _C_LABEL(Xtrap1c), _C_LABEL(Xtrap1d) 176 .quad _C_LABEL(Xtrap1e), _C_LABEL(Xtrap1f) 177 IDTVEC_END(exceptions) 178 179 /* 180 * Arguments pushed on the stack: 181 * tf_trapno 182 * tf_err: Dummy inserted if not defined 183 * tf_rip 184 * tf_cs 185 * tf_rflags 186 * tf_rsp 187 * tf_ss 188 */ 189 190 NENTRY(alltraps) 191 movq %rsp,%rdi 192 call _C_LABEL(trap) 193 /* NOTREACHED */ 194 END(alltraps) 195
Indexes created Mon Oct 20 20:10:13 GMT 2025