1 // SPDX-License-Identifier: LGPL-2.1-or-later
2 /*
3 * libfdt - Flat Device Tree manipulation
4 * Testcase for fdt_node_offset_by_phandle()
5 * Copyright (C) 2006 David Gibson, IBM Corporation.
6 */
7 #include <stdlib.h>
8 #include <stdio.h>
9 #include <string.h>
10 #include <stdint.h>
11 #include <stdarg.h>
12
13 #include <libfdt.h>
14
15 #include "tests.h"
16 #include "testdata.h"
17
check_search(void * fdt,uint32_t phandle,int target)18 static void check_search(void *fdt, uint32_t phandle, int target)
19 {
20 int offset;
21
22 offset = fdt_node_offset_by_phandle(fdt, phandle);
23
24 if (offset != target)
25 FAIL("fdt_node_offset_by_phandle(0x%x) returns %d "
26 "instead of %d", phandle, offset, target);
27 }
28
main(int argc,char * argv[])29 int main(int argc, char *argv[])
30 {
31 void *fdt;
32 int subnode2_offset, subsubnode2_offset;
33
34 test_init(argc, argv);
35 fdt = load_blob_arg(argc, argv);
36
37 subnode2_offset = fdt_path_offset(fdt, "/subnode@2");
38 subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode@0");
39
40 if ((subnode2_offset < 0) || (subsubnode2_offset < 0))
41 FAIL("Can't find required nodes");
42
43 check_search(fdt, PHANDLE_1, subnode2_offset);
44 check_search(fdt, PHANDLE_2, subsubnode2_offset);
45 check_search(fdt, ~PHANDLE_1, -FDT_ERR_NOTFOUND);
46 check_search(fdt, 0, -FDT_ERR_BADPHANDLE);
47 check_search(fdt, -1, -FDT_ERR_BADPHANDLE);
48
49 PASS();
50 }
51