blob: e6c3ceee8c58c56beee386e6ed730e32c4ff646b [file] [log] [blame]
David Gibson1cade992007-12-10 14:28:39 +11001/*
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
David Gibsoned95d742008-08-07 12:24:17 +100058struct fdt_errtabent {
David Gibson1cade992007-12-10 14:28:39 +110059 const char *str;
60};
61
David Gibsoned95d742008-08-07 12:24:17 +100062#define FDT_ERRTABENT(val) \
David Gibson1cade992007-12-10 14:28:39 +110063 [(val)] = { .str = #val, }
64
David Gibsoned95d742008-08-07 12:24:17 +100065static struct fdt_errtabent fdt_errtable[] = {
66 FDT_ERRTABENT(FDT_ERR_NOTFOUND),
67 FDT_ERRTABENT(FDT_ERR_EXISTS),
68 FDT_ERRTABENT(FDT_ERR_NOSPACE),
David Gibson1cade992007-12-10 14:28:39 +110069
David Gibsoned95d742008-08-07 12:24:17 +100070 FDT_ERRTABENT(FDT_ERR_BADOFFSET),
71 FDT_ERRTABENT(FDT_ERR_BADPATH),
72 FDT_ERRTABENT(FDT_ERR_BADSTATE),
David Gibson1cade992007-12-10 14:28:39 +110073
David Gibsoned95d742008-08-07 12:24:17 +100074 FDT_ERRTABENT(FDT_ERR_TRUNCATED),
75 FDT_ERRTABENT(FDT_ERR_BADMAGIC),
76 FDT_ERRTABENT(FDT_ERR_BADVERSION),
77 FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
78 FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
David Gibson1cade992007-12-10 14:28:39 +110079};
David Gibsoned95d742008-08-07 12:24:17 +100080#define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
David Gibson1cade992007-12-10 14:28:39 +110081
82const char *fdt_strerror(int errval)
83{
84 if (errval > 0)
85 return "<valid offset/length>";
86 else if (errval == 0)
87 return "<no error>";
David Gibsoned95d742008-08-07 12:24:17 +100088 else if (errval > -FDT_ERRTABSIZE) {
89 const char *s = fdt_errtable[-errval].str;
David Gibson1cade992007-12-10 14:28:39 +110090
91 if (s)
92 return s;
93 }
94
95 return "<unknown error>";
96}