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1 /* |
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2 * libfdt - Flat Device Tree manipulation |
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3 * Basic testcase for read-only access |
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4 * Copyright (C) 2006 David Gibson, IBM Corporation. |
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5 * |
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6 * This library is free software; you can redistribute it and/or |
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7 * modify it under the terms of the GNU Lesser General Public License |
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8 * as published by the Free Software Foundation; either version 2.1 of |
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9 * the License, or (at your option) any later version. |
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10 * |
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11 * This library is distributed in the hope that it will be useful, but |
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 * Lesser General Public License for more details. |
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15 * |
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16 * You should have received a copy of the GNU Lesser General Public |
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17 * License along with this library; if not, write to the Free Software |
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18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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19 */ |
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20 |
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21 #include <stdlib.h> |
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22 #include <stdio.h> |
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23 #include <string.h> |
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24 #include <limits.h> |
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25 #include <stdint.h> |
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26 |
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27 #include <fdt.h> |
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28 #include <libfdt.h> |
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29 |
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30 #include "tests.h" |
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31 #include "testdata.h" |
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32 |
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33 int main(int argc, char *argv[]) |
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34 { |
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35 void *fdt, *fdt1, *fdt2, *fdt3; |
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36 char *buf; |
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37 int shuntsize; |
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38 int bufsize; |
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39 int err; |
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40 const char *inname; |
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41 char outname[PATH_MAX]; |
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42 |
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43 test_init(argc, argv); |
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44 fdt = load_blob_arg(argc, argv); |
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45 inname = argv[1]; |
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46 |
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47 shuntsize = ALIGN(fdt_totalsize(fdt) / 2, sizeof(uint64_t)); |
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48 bufsize = fdt_totalsize(fdt) + shuntsize; |
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49 buf = xmalloc(bufsize); |
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50 |
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51 fdt1 = buf; |
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52 err = fdt_move(fdt, fdt1, bufsize); |
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53 if (err) |
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54 FAIL("Failed to move tree into new buffer: %s", |
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55 fdt_strerror(err)); |
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56 sprintf(outname, "moved.%s", inname); |
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57 save_blob(outname, fdt1); |
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58 |
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59 fdt2 = buf + shuntsize; |
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60 err = fdt_move(fdt1, fdt2, bufsize-shuntsize); |
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61 if (err) |
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62 FAIL("Failed to shunt tree %d bytes: %s", |
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63 shuntsize, fdt_strerror(err)); |
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64 sprintf(outname, "shunted.%s", inname); |
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65 save_blob(outname, fdt2); |
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66 |
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67 fdt3 = buf; |
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68 err = fdt_move(fdt2, fdt3, bufsize); |
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69 if (err) |
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70 FAIL("Failed to deshunt tree %d bytes: %s", |
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71 shuntsize, fdt_strerror(err)); |
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72 sprintf(outname, "deshunted.%s", inname); |
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73 save_blob(outname, fdt3); |
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74 |
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75 PASS(); |
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76 } |