1*4882a593Smuzhiyun // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * libfdt - Flat Device Tree manipulation
4*4882a593Smuzhiyun * Copyright (C) 2006 David Gibson, IBM Corporation.
5*4882a593Smuzhiyun * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #include "libfdt_env.h"
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <fdt.h>
10*4882a593Smuzhiyun #include <libfdt.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include "libfdt_internal.h"
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun struct fdt_errtabent {
15*4882a593Smuzhiyun const char *str;
16*4882a593Smuzhiyun };
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #define FDT_ERRTABENT(val) \
19*4882a593Smuzhiyun [(val)] = { .str = #val, }
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun static struct fdt_errtabent fdt_errtable[] = {
22*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_NOTFOUND),
23*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_EXISTS),
24*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_NOSPACE),
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADOFFSET),
27*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADPATH),
28*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADPHANDLE),
29*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADSTATE),
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_TRUNCATED),
32*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADMAGIC),
33*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADVERSION),
34*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
35*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
36*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_INTERNAL),
37*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADNCELLS),
38*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADVALUE),
39*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADOVERLAY),
40*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_NOPHANDLES),
41*4882a593Smuzhiyun FDT_ERRTABENT(FDT_ERR_BADFLAGS),
42*4882a593Smuzhiyun };
43*4882a593Smuzhiyun #define FDT_ERRTABSIZE ((int)(sizeof(fdt_errtable) / sizeof(fdt_errtable[0])))
44*4882a593Smuzhiyun
fdt_strerror(int errval)45*4882a593Smuzhiyun const char *fdt_strerror(int errval)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun if (errval > 0)
48*4882a593Smuzhiyun return "<valid offset/length>";
49*4882a593Smuzhiyun else if (errval == 0)
50*4882a593Smuzhiyun return "<no error>";
51*4882a593Smuzhiyun else if (-errval < FDT_ERRTABSIZE) {
52*4882a593Smuzhiyun const char *s = fdt_errtable[-errval].str;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun if (s)
55*4882a593Smuzhiyun return s;
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun return "<unknown error>";
59*4882a593Smuzhiyun }
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