Line data Source code
1 : /* Register names and numbers for SPARC DWARF.
2 : Copyright (C) 2005, 2006, 2015 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 sparc_
37 : #include "libebl_CPU.h"
38 :
39 : ssize_t
40 160 : sparc_register_info (Ebl *ebl,
41 : int regno, char *name, size_t namelen,
42 : const char **prefix, const char **setname,
43 : int *bits, int *type)
44 : {
45 160 : const int nfp = 32 + (ebl->class == ELFCLASS32 ? 0 : 16);
46 160 : const int nspec = ebl->class == ELFCLASS32 ? 8 : 6;
47 :
48 160 : if (name == NULL)
49 2 : return 32 + nfp + nspec;
50 :
51 158 : if (regno < 0 || regno >= 32 + nfp + nspec || namelen < 6)
52 : return -1;
53 :
54 158 : *bits = ebl->class == ELFCLASS32 ? 32 : 64;
55 158 : *type = DW_ATE_signed;
56 :
57 158 : *prefix = "%";
58 :
59 158 : if (regno >= 32 + nfp)
60 : {
61 14 : regno -= 32 + nfp;
62 14 : static const char names[2][8][6] =
63 : {
64 : { "y", "psr", "wim", "tbr", "pc", "npc", "fsr", "csr" }, /* v8 */
65 : { "pc", "npc", "state", "fsr", "fprs", "y" } /* v9 */
66 : };
67 14 : *setname = "control";
68 14 : *type = DW_ATE_unsigned;
69 22 : if ((ebl->class == ELFCLASS64 ? 0 : 4) + 1 - (unsigned int) regno <= 1)
70 4 : *type = DW_ATE_address;
71 14 : return stpncpy (name, names[ebl->class == ELFCLASS64][regno],
72 14 : namelen) + 1 - name;
73 : }
74 :
75 144 : if (regno < 32)
76 : {
77 64 : *setname = "integer";
78 64 : name[0] = "goli"[regno >> 3];
79 64 : name[1] = (regno & 7) + '0';
80 64 : namelen = 2;
81 64 : if ((regno & 8) && (regno & 7) == 6)
82 4 : *type = DW_ATE_address;
83 : }
84 : else
85 : {
86 80 : *setname = "FPU";
87 80 : *type = DW_ATE_float;
88 :
89 80 : regno -= 32;
90 80 : if (regno >= 32)
91 16 : regno = 32 + 2 * (regno - 32);
92 : else
93 64 : *bits = 32;
94 :
95 80 : name[0] = 'f';
96 80 : if (regno < 10)
97 : {
98 20 : name[1] = regno + '0';
99 20 : namelen = 2;
100 : }
101 : else
102 : {
103 60 : name[1] = regno / 10 + '0';
104 60 : name[2] = regno % 10 + '0';
105 60 : namelen = 3;
106 : }
107 : }
108 :
109 144 : name[namelen++] = '\0';
110 144 : return namelen;
111 : }
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