1 /*
2 * libfdt - Flat Device Tree manipulation
3 * Copyright (C) 2006 David Gibson, IBM Corporation.
4 *
5 * libfdt is dual licensed: you can use it either under the terms of
6 * the GPL, or the BSD license, at your option.
7 *
8 * a) This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of the
11 * License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public
19 * License along with this library; If not, see <http://www.gnu.org/licenses/>.
20 *
21 * Alternatively,
22 *
23 * b) Redistribution and use in source and binary forms, with or
24 * without modification, are permitted provided that the following
25 * conditions are met:
26 *
27 * 1. Redistributions of source code must retain the above
28 * copyright notice, this list of conditions and the following
29 * disclaimer.
30 * 2. Redistributions in binary form must reproduce the above
31 * copyright notice, this list of conditions and the following
32 * disclaimer in the documentation and/or other materials
33 * provided with the distribution.
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
36 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
37 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
38 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
40 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
45 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
46 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
47 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 */
49 #include "libfdt_env.h"
50
51 #include <fdt.h>
52 #include <libfdt.h>
53
54 #include "libfdt_internal.h"
55
56 struct fdt_errtabent {
57 const char *str;
58 };
59
60 #define FDT_ERRTABENT(val) \
61 [(val)] = { .str = #val, }
62
63 static struct fdt_errtabent fdt_errtable[] = {
64 FDT_ERRTABENT(FDT_ERR_NOTFOUND),
65 FDT_ERRTABENT(FDT_ERR_EXISTS),
66 FDT_ERRTABENT(FDT_ERR_NOSPACE),
67
68 FDT_ERRTABENT(FDT_ERR_BADOFFSET),
69 FDT_ERRTABENT(FDT_ERR_BADPATH),
70 FDT_ERRTABENT(FDT_ERR_BADSTATE),
71
72 FDT_ERRTABENT(FDT_ERR_TRUNCATED),
73 FDT_ERRTABENT(FDT_ERR_BADMAGIC),
74 FDT_ERRTABENT(FDT_ERR_BADVERSION),
75 FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
76 FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
77 };
78 #define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
79
fdt_strerror(int errval)80 const char *fdt_strerror(int errval)
81 {
82 if (errval > 0)
83 return "<valid offset/length>";
84 else if (errval == 0)
85 return "<no error>";
86 else if (errval > -FDT_ERRTABSIZE) {
87 const char *s = fdt_errtable[-errval].str;
88
89 if (s)
90 return s;
91 }
92
93 return "<unknown error>";
94 }
95