baseport/syborg/svpplatform/libfdt/fdt_strerror.c
changeset 2 d55eb581a87c
parent 0 ffa851df0825
equal deleted inserted replaced
1:2fb8b9db1c86 2:d55eb581a87c
       
     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 errtabent {
       
    59 	const char *str;
       
    60 };
       
    61 
       
    62 #define ERRTABENT(val) \
       
    63 	[(val)] = { .str = #val, }
       
    64 
       
    65 static struct errtabent errtable[] = {
       
    66 	ERRTABENT(FDT_ERR_NOTFOUND),
       
    67 	ERRTABENT(FDT_ERR_EXISTS),
       
    68 	ERRTABENT(FDT_ERR_NOSPACE),
       
    69 
       
    70 	ERRTABENT(FDT_ERR_BADOFFSET),
       
    71 	ERRTABENT(FDT_ERR_BADPATH),
       
    72 	ERRTABENT(FDT_ERR_BADSTATE),
       
    73 
       
    74 	ERRTABENT(FDT_ERR_TRUNCATED),
       
    75 	ERRTABENT(FDT_ERR_BADMAGIC),
       
    76 	ERRTABENT(FDT_ERR_BADVERSION),
       
    77 	ERRTABENT(FDT_ERR_BADSTRUCTURE),
       
    78 	ERRTABENT(FDT_ERR_BADLAYOUT),
       
    79 };
       
    80 #define ERRTABSIZE	(sizeof(errtable) / sizeof(errtable[0]))
       
    81 
       
    82 const char *fdt_strerror(int errval)
       
    83 {
       
    84 	if (errval > 0)
       
    85 		return "<valid offset/length>";
       
    86 	else if (errval == 0)
       
    87 		return "<no error>";
       
    88 	else if (errval > -ERRTABSIZE) {
       
    89 		const char *s = errtable[-errval].str;
       
    90 
       
    91 		if (s)
       
    92 			return s;
       
    93 	}
       
    94 
       
    95 	return "<unknown error>";
       
    96 }