LXR linux/scripts/dtc/libfdt/fdt

   1// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
   2/*
   3 * libfdt - Flat Device Tree manipulation
   4 * Copyright (C) 2006 David Gibson, IBM Corporation.
   5 *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   6 */
   7#include "libfdt_env.h"
   8
   9#include <fdt.h>
  10#include <libfdt.h>
  11
  12#include "libfdt_internal.h"
  13
  14struct fdt_errtabent {
  15        const char *str;
  16};
  17
  18#define FDT_ERRTABENT(val) \
  19        [(val)] = { .str = #val, }
  20
  21static struct fdt_errtabent fdt_errtable[] = {
  22        FDT_ERRTABENT(FDT_ERR_NOTFOUND),
  23        FDT_ERRTABENT(FDT_ERR_EXISTS),
  24        FDT_ERRTABENT(FDT_ERR_NOSPACE),
  25
  26        FDT_ERRTABENT(FDT_ERR_BADOFFSET),
  27        FDT_ERRTABENT(FDT_ERR_BADPATH),
  28        FDT_ERRTABENT(FDT_ERR_BADPHANDLE),
  29        FDT_ERRTABENT(FDT_ERR_BADSTATE),
  30
  31        FDT_ERRTABENT(FDT_ERR_TRUNCATED),
  32        FDT_ERRTABENT(FDT_ERR_BADMAGIC),
  33        FDT_ERRTABENT(FDT_ERR_BADVERSION),
  34        FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
  35        FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
  36        FDT_ERRTABENT(FDT_ERR_INTERNAL),
  37        FDT_ERRTABENT(FDT_ERR_BADNCELLS),
  38        FDT_ERRTABENT(FDT_ERR_BADVALUE),
  39        FDT_ERRTABENT(FDT_ERR_BADOVERLAY),
  40        FDT_ERRTABENT(FDT_ERR_NOPHANDLES),
  41        FDT_ERRTABENT(FDT_ERR_BADFLAGS),
  42};
  43#define FDT_ERRTABSIZE  ((int)(sizeof(fdt_errtable) / sizeof(fdt_errtable[0])))
  44
  45const char *fdt_strerror(int errval)
  46{
  47        if (errval > 0)
  48                return "<valid offset/length>";
  49        else if (errval == 0)
  50                return "<no error>";
  51        else if (-errval < FDT_ERRTABSIZE) {
  52                const char *s = fdt_errtable[-errval].str;
  53
  54                if (s)
  55                        return s;
  56        }
  57
  58        return "<unknown error>";
  59}
  60