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 #ifndef USE_HOSTCC 54 #include <fdt.h> 55 #include <libfdt.h> 56 #else 57 #include "fdt_host.h" 58 #endif 59 60 #include "libfdt_internal.h" 61 62 struct fdt_errtabent { 63 const char *str; 64 }; 65 66 #define FDT_ERRTABENT(val) \ 67 [(val)] = { .str = #val, } 68 69 static struct fdt_errtabent fdt_errtable[] = { 70 FDT_ERRTABENT(FDT_ERR_NOTFOUND), 71 FDT_ERRTABENT(FDT_ERR_EXISTS), 72 FDT_ERRTABENT(FDT_ERR_NOSPACE), 73 74 FDT_ERRTABENT(FDT_ERR_BADOFFSET), 75 FDT_ERRTABENT(FDT_ERR_BADPATH), 76 FDT_ERRTABENT(FDT_ERR_BADSTATE), 77 78 FDT_ERRTABENT(FDT_ERR_TRUNCATED), 79 FDT_ERRTABENT(FDT_ERR_BADMAGIC), 80 FDT_ERRTABENT(FDT_ERR_BADVERSION), 81 FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE), 82 FDT_ERRTABENT(FDT_ERR_BADLAYOUT), 83 }; 84 #define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0])) 85 86 const char *fdt_strerror(int errval) 87 { 88 if (errval > 0) 89 return "<valid offset/length>"; 90 else if (errval == 0) 91 return "<no error>"; 92 else if (errval > -FDT_ERRTABSIZE) { 93 const char *s = fdt_errtable[-errval].str; 94 95 if (s) 96 return s; 97 } 98 99 return "<unknown error>"; 100 } 101