1 /* Register names and numbers for S/390 DWARF. 2 Copyright (C) 2006 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 s390_ 37 #include "libebl_CPU.h" 38 39 40 /* 41 zseries (64) 42 43 0-15 gpr0-gpr15 x 44 16-19 fpr[0246] 45 20-24 fpr[13578] 46 25-27 fpr1[024] 47 28 fpr9 48 29-31 fpr1[135] 49 32-47 cr0-cr15 x 50 48-63 ar0-ar15 x 51 64 psw_mask 52 65 psw_address 53 */ 54 55 56 ssize_t 57 s390_register_info (Ebl *ebl __attribute__ ((unused)), 58 int regno, char *name, size_t namelen, 59 const char **prefix, const char **setname, 60 int *bits, int *type) 61 { 62 if (name == NULL) 63 return 66; 64 65 if (regno < 0 || regno > 65 || namelen < 7) 66 return -1; 67 68 *prefix = "%"; 69 70 *bits = ebl->class == ELFCLASS64 ? 64 : 32; 71 *type = DW_ATE_unsigned; 72 if (regno < 16) 73 { 74 *setname = "integer"; 75 *type = DW_ATE_signed; 76 } 77 else if (regno < 32) 78 { 79 *setname = "FPU"; 80 *type = DW_ATE_float; 81 *bits = 64; 82 } 83 else if (regno < 48 || regno > 63) 84 *setname = "control"; 85 else 86 { 87 *setname = "access"; 88 *bits = 32; 89 } 90 91 switch (regno) 92 { 93 case 0 ... 9: 94 name[0] = 'r'; 95 name[1] = regno + '0'; 96 namelen = 2; 97 break; 98 99 case 10 ... 15: 100 name[0] = 'r'; 101 name[1] = '1'; 102 name[2] = regno - 10 + '0'; 103 namelen = 3; 104 break; 105 106 case 16 ... 31: 107 name[0] = 'f'; 108 regno = (regno & 8) | ((regno & 4) >> 2) | ((regno & 3) << 1); 109 namelen = 1; 110 if (regno >= 10) 111 { 112 regno -= 10; 113 name[namelen++] = '1'; 114 } 115 name[namelen++] = regno + '0'; 116 break; 117 118 case 32 + 0 ... 32 + 9: 119 case 48 + 0 ... 48 + 9: 120 name[0] = regno < 48 ? 'c' : 'a'; 121 name[1] = (regno & 15) + '0'; 122 namelen = 2; 123 break; 124 125 case 32 + 10 ... 32 + 15: 126 case 48 + 10 ... 48 + 15: 127 name[0] = regno < 48 ? 'c' : 'a'; 128 name[1] = '1'; 129 name[2] = (regno & 15) - 10 + '0'; 130 namelen = 3; 131 break; 132 133 case 64: 134 return stpcpy (name, "pswm") + 1 - name; 135 case 65: 136 *type = DW_ATE_address; 137 return stpcpy (name, "pswa") + 1 - name; 138 139 default: 140 *setname = NULL; 141 return 0; 142 } 143 144 name[namelen++] = '\0'; 145 return namelen; 146 } 147
