Line data Source code
1 : /* Register names and numbers for BPF DWARF.
2 : This file is part of elfutils.
3 :
4 : This file is free software; you can redistribute it and/or modify
5 : it under the terms of either
6 :
7 : * the GNU Lesser General Public License as published by the Free
8 : Software Foundation; either version 3 of the License, or (at
9 : your option) any later version
10 :
11 : or
12 :
13 : * the GNU General Public License as published by the Free
14 : Software Foundation; either version 2 of the License, or (at
15 : your option) any later version
16 :
17 : or both in parallel, as here.
18 :
19 : elfutils is distributed in the hope that it will be useful, but
20 : WITHOUT ANY WARRANTY; without even the implied warranty of
21 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 : General Public License for more details.
23 :
24 : You should have received copies of the GNU General Public License and
25 : the GNU Lesser General Public License along with this program. If
26 : not, see <http://www.gnu.org/licenses/>. */
27 :
28 : #ifdef HAVE_CONFIG_H
29 : # include <config.h>
30 : #endif
31 :
32 : #include <stdio.h>
33 : #include <string.h>
34 :
35 : #include "bpf.h"
36 :
37 : #define BACKEND bpf_
38 : #include "libebl_CPU.h"
39 :
40 : ssize_t
41 0 : bpf_register_info (Ebl *ebl __attribute__ ((unused)),
42 : int regno, char *name, size_t namelen,
43 : const char **prefix, const char **setname,
44 : int *bits, int *type)
45 : {
46 0 : ssize_t len;
47 :
48 0 : if (name == NULL)
49 : return MAX_BPF_REG;
50 0 : if (regno < 0 || regno >= MAX_BPF_REG)
51 : return -1;
52 :
53 0 : *prefix = "";
54 0 : *setname = "integer";
55 0 : *bits = 64;
56 0 : *type = DW_ATE_signed;
57 :
58 0 : len = snprintf(name, namelen, "r%d", regno);
59 0 : return ((size_t)len < namelen ? len : -1);
60 : }
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