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