1 /* Register names and numbers for PowerPC DWARF.
2 Copyright (C) 2005, 2006, 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 ppc_
37 #include "libebl_CPU.h"
38
39 ssize_t
ppc_register_info(Ebl * ebl,int regno,char * name,size_t namelen,const char ** prefix,const char ** setname,int * bits,int * type)40 ppc_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 1156;
47
48 if (regno < 0 || regno > 1155 || namelen < 8)
49 return -1;
50
51 *prefix = "";
52 *bits = ebl->machine == EM_PPC64 ? 64 : 32;
53 *type = (regno < 32 ? DW_ATE_signed
54 : regno < 64 ? DW_ATE_float : DW_ATE_unsigned);
55
56 if (regno < 32 || regno == 64 || regno == 66)
57 *setname = "integer";
58 else if (regno < 64 || regno == 65)
59 {
60 *setname = "FPU";
61 if (ebl->machine != EM_PPC64 && regno < 64)
62 *bits = 64;
63 }
64 else if (regno == 67 || regno == 356 || regno == 612 || regno >= 1124)
65 {
66 *setname = "vector";
67 *bits = regno >= 1124 ? 128 : 32;
68 }
69 else
70 *setname = "privileged";
71
72 switch (regno)
73 {
74 case 0 ... 9:
75 name[0] = 'r';
76 name[1] = regno + '0';
77 namelen = 2;
78 break;
79
80 case 10 ... 31:
81 name[0] = 'r';
82 name[1] = regno / 10 + '0';
83 name[2] = regno % 10 + '0';
84 namelen = 3;
85 break;
86
87 case 32 + 0 ... 32 + 9:
88 name[0] = 'f';
89 name[1] = (regno - 32) + '0';
90 namelen = 2;
91 break;
92
93 case 32 + 10 ... 32 + 31:
94 name[0] = 'f';
95 name[1] = (regno - 32) / 10 + '0';
96 name[2] = (regno - 32) % 10 + '0';
97 namelen = 3;
98 break;
99
100 case 64:
101 return stpcpy (name, "cr") + 1 - name;
102 case 65:
103 return stpcpy (name, "fpscr") + 1 - name;
104 case 66:
105 return stpcpy (name, "msr") + 1 - name;
106 case 67: /* XXX unofficial assignment */
107 return stpcpy (name, "vscr") + 1 - name;
108
109 case 70 + 0 ... 70 + 9:
110 name[0] = 's';
111 name[1] = 'r';
112 name[2] = (regno - 70) + '0';
113 namelen = 3;
114 break;
115
116 case 70 + 10 ... 70 + 15:
117 name[0] = 's';
118 name[1] = 'r';
119 name[2] = (regno - 70) / 10 + '0';
120 name[3] = (regno - 70) % 10 + '0';
121 namelen = 4;
122 break;
123
124 case 101:
125 return stpcpy (name, "xer") + 1 - name;
126 case 108:
127 return stpcpy (name, "lr") + 1 - name;
128 case 109:
129 return stpcpy (name, "ctr") + 1 - name;
130 case 118:
131 return stpcpy (name, "dsisr") + 1 - name;
132 case 119:
133 return stpcpy (name, "dar") + 1 - name;
134 case 122:
135 return stpcpy (name, "dec") + 1 - name;
136 case 356:
137 return stpcpy (name, "vrsave") + 1 - name;
138 case 612:
139 return stpcpy (name, "spefscr") + 1 - name;
140 case 100:
141 if (*bits == 32)
142 return stpcpy (name, "mq") + 1 - name;
143
144 case 102 ... 107:
145 name[0] = 's';
146 name[1] = 'p';
147 name[2] = 'r';
148 name[3] = (regno - 100) + '0';
149 namelen = 4;
150 break;
151
152 case 110 ... 117:
153 case 120 ... 121:
154 case 123 ... 199:
155 name[0] = 's';
156 name[1] = 'p';
157 name[2] = 'r';
158 name[3] = (regno - 100) / 10 + '0';
159 name[4] = (regno - 100) % 10 + '0';
160 namelen = 5;
161 break;
162
163 case 200 ... 355:
164 case 357 ... 611:
165 case 613 ... 999:
166 name[0] = 's';
167 name[1] = 'p';
168 name[2] = 'r';
169 name[3] = (regno - 100) / 100 + '0';
170 name[4] = ((regno - 100) % 100 / 10) + '0';
171 name[5] = (regno - 100) % 10 + '0';
172 namelen = 6;
173 break;
174
175 case 1124 + 0 ... 1124 + 9:
176 name[0] = 'v';
177 name[1] = 'r';
178 name[2] = (regno - 1124) + '0';
179 namelen = 3;
180 break;
181
182 case 1124 + 10 ... 1124 + 31:
183 name[0] = 'v';
184 name[1] = 'r';
185 name[2] = (regno - 1124) / 10 + '0';
186 name[3] = (regno - 1124) % 10 + '0';
187 namelen = 4;
188 break;
189
190 default:
191 *setname = NULL;
192 return 0;
193 }
194
195 name[namelen++] = '\0';
196 return namelen;
197 }
198
199 __typeof (ppc_register_info)
200 ppc64_register_info __attribute__ ((alias ("ppc_register_info")));
201