1 /* 2 * libfdt - Flat Device Tree manipulation 3 * Copyright (C) 2006 David Gibson, IBM Corporation. 4 * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause 5 */ 6 #include "libfdt_env.h" 7 8 #ifndef USE_HOSTCC 9 #include <fdt.h> 10 #include <libfdt.h> 11 #else 12 #include "fdt_host.h" 13 #endif 14 15 #include "libfdt_internal.h" 16 17 struct fdt_errtabent { 18 const char *str; 19 }; 20 21 #define FDT_ERRTABENT(val) \ 22 [(val)] = { .str = #val, } 23 24 static struct fdt_errtabent fdt_errtable[] = { 25 FDT_ERRTABENT(FDT_ERR_NOTFOUND), 26 FDT_ERRTABENT(FDT_ERR_EXISTS), 27 FDT_ERRTABENT(FDT_ERR_NOSPACE), 28 29 FDT_ERRTABENT(FDT_ERR_BADOFFSET), 30 FDT_ERRTABENT(FDT_ERR_BADPATH), 31 FDT_ERRTABENT(FDT_ERR_BADSTATE), 32 33 FDT_ERRTABENT(FDT_ERR_TRUNCATED), 34 FDT_ERRTABENT(FDT_ERR_BADMAGIC), 35 FDT_ERRTABENT(FDT_ERR_BADVERSION), 36 FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE), 37 FDT_ERRTABENT(FDT_ERR_BADLAYOUT), 38 }; 39 #define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0])) 40 41 const char *fdt_strerror(int errval) 42 { 43 if (errval > 0) 44 return "<valid offset/length>"; 45 else if (errval == 0) 46 return "<no error>"; 47 else if (errval > -FDT_ERRTABSIZE) { 48 const char *s = fdt_errtable[-errval].str; 49 50 if (s) 51 return s; 52 } 53 54 return "<unknown error>"; 55 } 56