1 // SPDX-License-Identifier: (BSD-2-Clause OR GPL-2.0+) 2 /* 3 * libfdt - Flat Device Tree manipulation 4 * Copyright (C) 2006 David Gibson, IBM Corporation. 5 * 6 * libfdt is dual licensed: you can use it either under the terms of 7 * the GPL, or the BSD license, at your option. 8 * 9 * a) This library is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of the 12 * License, or (at your option) any later version. 13 * 14 * This library is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public 20 * License along with this library; if not, write to the Free 21 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, 22 * MA 02110-1301 USA 23 * 24 * Alternatively, 25 * 26 * b) Redistribution and use in source and binary forms, with or 27 * without modification, are permitted provided that the following 28 * conditions are met: 29 * 30 * 1. Redistributions of source code must retain the above 31 * copyright notice, this list of conditions and the following 32 * disclaimer. 33 * 2. Redistributions in binary form must reproduce the above 34 * copyright notice, this list of conditions and the following 35 * disclaimer in the documentation and/or other materials 36 * provided with the distribution. 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 39 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 40 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 41 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 42 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 43 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 48 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 49 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 50 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 51 */ 52 #include "libfdt_env.h" 53 54 #include <fdt.h> 55 #include <libfdt.h> 56 57 #include "libfdt_internal.h" 58 59 struct fdt_errtabent { 60 const char *str; 61 }; 62 63 #define FDT_ERRTABENT(val) \ 64 [(val)] = { .str = #val, } 65 66 static struct fdt_errtabent fdt_errtable[] = { 67 FDT_ERRTABENT(FDT_ERR_NOTFOUND), 68 FDT_ERRTABENT(FDT_ERR_EXISTS), 69 FDT_ERRTABENT(FDT_ERR_NOSPACE), 70 71 FDT_ERRTABENT(FDT_ERR_BADOFFSET), 72 FDT_ERRTABENT(FDT_ERR_BADPATH), 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 }; 81 #define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0])) 82 83 const char *fdt_strerror(int errval) 84 { 85 if (errval > 0) 86 return "<valid offset/length>"; 87 else if (errval == 0) 88 return "<no error>"; 89 else if (errval > -FDT_ERRTABSIZE) { 90 const char *s = fdt_errtable[-errval].str; 91 92 if (s) 93 return s; 94 } 95 96 return "<unknown error>"; 97 } 98