1 /* Register names and numbers for Alpha DWARF. 2 Copyright (C) 2007 Red Hat, Inc. 3 This file is part of elfutils. 4 5 This file is free software; you can redistribute it and/or modify 6 it under the terms of either 7 8 * the GNU Lesser General Public License as published by the Free 9 Software Foundation; either version 3 of the License, or (at 10 your option) any later version 11 12 or 13 14 * the GNU General Public License as published by the Free 15 Software Foundation; either version 2 of the License, or (at 16 your option) any later version 17 18 or both in parallel, as here. 19 20 elfutils is distributed in the hope that it will be useful, but 21 WITHOUT ANY WARRANTY; without even the implied warranty of 22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 23 General Public License for more details. 24 25 You should have received copies of the GNU General Public License and 26 the GNU Lesser General Public License along with this program. If 27 not, see <http://www.gnu.org/licenses/>. */ 28 29 #ifdef HAVE_CONFIG_H 30 # include <config.h> 31 #endif 32 33 #include <string.h> 34 #include <dwarf.h> 35 36 #define BACKEND alpha_ 37 #include "libebl_CPU.h" 38 39 ssize_t 40 alpha_register_info (Ebl *ebl __attribute__ ((unused)), 41 int regno, char *name, size_t namelen, 42 const char **prefix, const char **setname, 43 int *bits, int *type) 44 { 45 if (name == NULL) 46 return 67; 47 48 if (regno < 0 || regno > 66 || namelen < 7) 49 return -1; 50 51 *prefix = "$"; 52 53 *bits = 64; 54 *type = DW_ATE_signed; 55 *setname = "integer"; 56 if (regno >= 32 && regno < 64) 57 { 58 *setname = "FPU"; 59 *type = DW_ATE_float; 60 } 61 62 switch (regno) 63 { 64 case 0: 65 name[0] = 'v'; 66 name[1] = '0'; 67 namelen = 2; 68 break; 69 70 case 1 ... 8: 71 name[0] = 't'; 72 name[1] = regno - 1 + '0'; 73 namelen = 2; 74 break; 75 76 case 9 ... 15: 77 name[0] = 's'; 78 name[1] = regno - 9 + '0'; 79 namelen = 2; 80 break; 81 82 case 16 ... 21: 83 name[0] = 'a'; 84 name[1] = regno - 16 + '0'; 85 namelen = 2; 86 break; 87 88 case 22 ... 23: 89 name[0] = 't'; 90 name[1] = regno - 22 + '8'; 91 namelen = 2; 92 break; 93 94 case 24 ... 25: 95 name[0] = 't'; 96 name[1] = '1'; 97 name[2] = regno - 24 + '0'; 98 namelen = 3; 99 break; 100 101 case 26: 102 *type = DW_ATE_address; 103 return stpcpy (name, "ra") + 1 - name; 104 105 case 27: 106 return stpcpy (name, "t12") + 1 - name; 107 108 case 28: 109 return stpcpy (name, "at") + 1 - name; 110 111 case 29: 112 *type = DW_ATE_address; 113 return stpcpy (name, "gp") + 1 - name; 114 115 case 30: 116 *type = DW_ATE_address; 117 return stpcpy (name, "sp") + 1 - name; 118 119 case 31: 120 return stpcpy (name, "zero") + 1 - name; 121 122 case 32 ... 32 + 9: 123 name[0] = 'f'; 124 name[1] = regno - 32 + '0'; 125 namelen = 2; 126 break; 127 128 case 32 + 10 ... 32 + 19: 129 name[0] = 'f'; 130 name[1] = '1'; 131 name[2] = regno - 32 - 10 + '0'; 132 namelen = 3; 133 break; 134 135 case 32 + 20 ... 32 + 29: 136 name[0] = 'f'; 137 name[1] = '2'; 138 name[2] = regno - 32 - 20 + '0'; 139 namelen = 3; 140 break; 141 142 case 32 + 30: 143 return stpcpy (name, "f30") + 1 - name; 144 145 case 32 + 31: 146 *type = DW_ATE_unsigned; 147 return stpcpy (name, "fpcr") + 1 - name; 148 149 case 64: 150 *type = DW_ATE_address; 151 return stpcpy (name, "pc") + 1 - name; 152 153 case 66: 154 *type = DW_ATE_address; 155 return stpcpy (name, "unique") + 1 - name; 156 157 default: 158 *setname = NULL; 159 return 0; 160 } 161 162 name[namelen++] = '\0'; 163 return namelen; 164 } 165
