1 /* Register names and numbers for x86-64 DWARF. 2 Copyright (C) 2005, 2006, 2007 Red Hat, Inc. 3 This file is part of Red Hat elfutils. 4 5 Red Hat elfutils is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by the 7 Free Software Foundation; version 2 of the License. 8 9 Red Hat elfutils is distributed in the hope that it will be useful, but 10 WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 General Public License for more details. 13 14 You should have received a copy of the GNU General Public License along 15 with Red Hat elfutils; if not, write to the Free Software Foundation, 16 Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 17 18 Red Hat elfutils is an included package of the Open Invention Network. 19 An included package of the Open Invention Network is a package for which 20 Open Invention Network licensees cross-license their patents. No patent 21 license is granted, either expressly or impliedly, by designation as an 22 included package. Should you wish to participate in the Open Invention 23 Network licensing program, please visit www.openinventionnetwork.com 24 <http://www.openinventionnetwork.com>. */ 25 26 #ifdef HAVE_CONFIG_H 27 # include <config.h> 28 #endif 29 30 #include <assert.h> 31 #include <dwarf.h> 32 #include <string.h> 33 34 #define BACKEND x86_64_ 35 #include "libebl_CPU.h" 36 37 ssize_t 38 x86_64_register_info (Ebl *ebl __attribute__ ((unused)), 39 int regno, char *name, size_t namelen, 40 const char **prefix, const char **setname, 41 int *bits, int *type) 42 { 43 if (name == NULL) 44 return 67; 45 46 if (regno < 0 || regno > 66 || namelen < 7) 47 return -1; 48 49 *prefix = "%"; 50 *bits = 64; 51 *type = DW_ATE_unsigned; 52 if (regno < 17) 53 { 54 *setname = "integer"; 55 *type = DW_ATE_signed; 56 } 57 else if (regno < 33) 58 { 59 *setname = "SSE"; 60 *bits = 128; 61 } 62 else if (regno < 41) 63 { 64 *setname = "x87"; 65 *type = DW_ATE_float; 66 *bits = 80; 67 } 68 else if (regno < 49) 69 *setname = "MMX"; 70 else if (regno > 49 && regno < 60) 71 { 72 *setname = "segment"; 73 *bits = 16; 74 } 75 else 76 *setname = "control"; 77 78 switch (regno) 79 { 80 static const char baseregs[][2] = 81 { 82 "ax", "dx", "cx", "bx", "si", "di", "bp", "sp" 83 }; 84 85 case 6 ... 7: 86 *type = DW_ATE_address; 87 case 0 ... 5: 88 name[0] = 'r'; 89 name[1] = baseregs[regno][0]; 90 name[2] = baseregs[regno][1]; 91 namelen = 3; 92 break; 93 94 case 8 ... 9: 95 name[0] = 'r'; 96 name[1] = regno - 8 + '8'; 97 namelen = 2; 98 break; 99 100 case 10 ... 15: 101 name[0] = 'r'; 102 name[1] = '1'; 103 name[2] = regno - 10 + '0'; 104 namelen = 3; 105 break; 106 107 case 16: 108 *type = DW_ATE_address; 109 name[0] = 'r'; 110 name[1] = 'i'; 111 name[2] = 'p'; 112 namelen = 3; 113 break; 114 115 case 17 ... 26: 116 name[0] = 'x'; 117 name[1] = 'm'; 118 name[2] = 'm'; 119 name[3] = regno - 17 + '0'; 120 namelen = 4; 121 break; 122 123 case 27 ... 32: 124 name[0] = 'x'; 125 name[1] = 'm'; 126 name[2] = 'm'; 127 name[3] = '1'; 128 name[4] = regno - 27 + '0'; 129 namelen = 5; 130 break; 131 132 case 33 ... 40: 133 name[0] = 's'; 134 name[1] = 't'; 135 name[2] = regno - 33 + '0'; 136 namelen = 3; 137 break; 138 139 case 41 ... 48: 140 name[0] = 'm'; 141 name[1] = 'm'; 142 name[2] = regno - 41 + '0'; 143 namelen = 3; 144 break; 145 146 case 50 ... 55: 147 name[0] = "ecsdfg"[regno - 50]; 148 name[1] = 's'; 149 namelen = 2; 150 break; 151 152 case 58 ... 59: 153 *type = DW_ATE_address; 154 *bits = 64; 155 name[0] = regno - 58 + 'f'; 156 return stpcpy (&name[1], "s.base") + 1 - name; 157 158 case 49: 159 *setname = "integer"; 160 return stpcpy (name, "rflags") + 1 - name; 161 case 62: 162 return stpcpy (name, "tr") + 1 - name; 163 case 63: 164 return stpcpy (name, "ldtr") + 1 - name; 165 case 64: 166 return stpcpy (name, "mxcsr") + 1 - name; 167 168 case 65 ... 66: 169 *bits = 16; 170 name[0] = 'f'; 171 name[1] = "cs"[regno - 65]; 172 name[2] = 'w'; 173 namelen = 3; 174 break; 175 176 default: 177 return 0; 178 } 179 180 name[namelen++] = '\0'; 181 return namelen; 182 } 183
