Line data Source code
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 68 : 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 68 : if (name == NULL)
46 : return 67;
47 :
48 67 : if (regno < 0 || regno > 66 || namelen < 7)
49 : return -1;
50 :
51 67 : *prefix = "$";
52 :
53 67 : *bits = 64;
54 67 : *type = DW_ATE_signed;
55 67 : *setname = "integer";
56 67 : if (regno >= 32 && regno < 64)
57 : {
58 32 : *setname = "FPU";
59 32 : *type = DW_ATE_float;
60 : }
61 :
62 67 : switch (regno)
63 : {
64 1 : case 0:
65 1 : name[0] = 'v';
66 1 : name[1] = '0';
67 1 : namelen = 2;
68 1 : break;
69 :
70 8 : case 1 ... 8:
71 8 : name[0] = 't';
72 8 : name[1] = regno - 1 + '0';
73 8 : namelen = 2;
74 8 : break;
75 :
76 7 : case 9 ... 15:
77 7 : name[0] = 's';
78 7 : name[1] = regno - 9 + '0';
79 7 : namelen = 2;
80 7 : break;
81 :
82 6 : case 16 ... 21:
83 6 : name[0] = 'a';
84 6 : name[1] = regno - 16 + '0';
85 6 : namelen = 2;
86 6 : break;
87 :
88 2 : case 22 ... 23:
89 2 : name[0] = 't';
90 2 : name[1] = regno - 22 + '8';
91 2 : namelen = 2;
92 2 : break;
93 :
94 2 : case 24 ... 25:
95 2 : name[0] = 't';
96 2 : name[1] = '1';
97 2 : name[2] = regno - 24 + '0';
98 2 : namelen = 3;
99 2 : break;
100 :
101 1 : case 26:
102 1 : *type = DW_ATE_address;
103 2 : return stpcpy (name, "ra") + 1 - name;
104 :
105 : case 27:
106 2 : return stpcpy (name, "t12") + 1 - name;
107 :
108 : case 28:
109 2 : return stpcpy (name, "at") + 1 - name;
110 :
111 1 : case 29:
112 1 : *type = DW_ATE_address;
113 2 : return stpcpy (name, "gp") + 1 - name;
114 :
115 1 : case 30:
116 1 : *type = DW_ATE_address;
117 2 : return stpcpy (name, "sp") + 1 - name;
118 :
119 : case 31:
120 2 : return stpcpy (name, "zero") + 1 - name;
121 :
122 10 : case 32 ... 32 + 9:
123 10 : name[0] = 'f';
124 10 : name[1] = regno - 32 + '0';
125 10 : namelen = 2;
126 10 : break;
127 :
128 10 : case 32 + 10 ... 32 + 19:
129 10 : name[0] = 'f';
130 10 : name[1] = '1';
131 10 : name[2] = regno - 32 - 10 + '0';
132 10 : namelen = 3;
133 10 : break;
134 :
135 10 : case 32 + 20 ... 32 + 29:
136 10 : name[0] = 'f';
137 10 : name[1] = '2';
138 10 : name[2] = regno - 32 - 20 + '0';
139 10 : namelen = 3;
140 10 : break;
141 :
142 : case 32 + 30:
143 2 : return stpcpy (name, "f30") + 1 - name;
144 :
145 1 : case 32 + 31:
146 1 : *type = DW_ATE_unsigned;
147 2 : return stpcpy (name, "fpcr") + 1 - name;
148 :
149 1 : case 64:
150 1 : *type = DW_ATE_address;
151 2 : return stpcpy (name, "pc") + 1 - name;
152 :
153 1 : case 66:
154 1 : *type = DW_ATE_address;
155 2 : return stpcpy (name, "unique") + 1 - name;
156 :
157 1 : default:
158 1 : *setname = NULL;
159 1 : return 0;
160 : }
161 :
162 56 : name[namelen++] = '\0';
163 56 : return namelen;
164 : }
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