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, write to the Free
20 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
21 * MA 02110-1301 USA
22 *
23 * Alternatively,
24 *
25 * b) Redistribution and use in source and binary forms, with or
26 * without modification, are permitted provided that the following
27 * conditions are met:
28 *
29 * 1. Redistributions of source code must retain the above
30 * copyright notice, this list of conditions and the following
31 * disclaimer.
32 * 2. Redistributions in binary form must reproduce the above
33 * copyright notice, this list of conditions and the following
34 * disclaimer in the documentation and/or other materials
35 * provided with the distribution.
36 *
37 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
38 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
39 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
40 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
41 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
42 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
47 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
48 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
49 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
50 */
51 #include "libfdt_env.h"
52
53 #include <fdt.h>
54 #include <libfdt.h>
55
56 #include "libfdt_internal.h"
57
58 struct fdt_errtabent {
59 const char *str;
60 };
61
62 #define FDT_ERRTABENT(val) \
63 [(val)] = { .str = #val, }
64
65 static struct fdt_errtabent fdt_errtable[] = {
66 FDT_ERRTABENT(FDT_ERR_NOTFOUND),
67 FDT_ERRTABENT(FDT_ERR_EXISTS),
68 FDT_ERRTABENT(FDT_ERR_NOSPACE),
69
70 FDT_ERRTABENT(FDT_ERR_BADOFFSET),
71 FDT_ERRTABENT(FDT_ERR_BADPATH),
72 FDT_ERRTABENT(FDT_ERR_BADPHANDLE),
73 FDT_ERRTABENT(FDT_ERR_BADSTATE),
74
75 FDT_ERRTABENT(FDT_ERR_TRUNCATED),
76 FDT_ERRTABENT(FDT_ERR_BADMAGIC),
77 FDT_ERRTABENT(FDT_ERR_BADVERSION),
78 FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
79 FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
80 FDT_ERRTABENT(FDT_ERR_INTERNAL),
81 FDT_ERRTABENT(FDT_ERR_BADNCELLS),
82 FDT_ERRTABENT(FDT_ERR_BADVALUE),
83 FDT_ERRTABENT(FDT_ERR_BADOVERLAY),
84 FDT_ERRTABENT(FDT_ERR_NOPHANDLES),
85 };
86 #define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
87
fdt_strerror(int errval)88 const char *fdt_strerror(int errval)
89 {
90 if (errval > 0)
91 return "<valid offset/length>";
92 else if (errval == 0)
93 return "<no error>";
94 else if (errval > -FDT_ERRTABSIZE) {
95 const char *s = fdt_errtable[-errval].str;
96
97 if (s)
98 return s;
99 }
100
101 return "<unknown error>";
102 }
103
