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