xref: /aosp_15_r20/external/dtc/tests/root_node.c (revision cd60bc56d4bea3af4ec04523e4d71c2b272c8aff)
1*cd60bc56SAndroid Build Coastguard Worker // SPDX-License-Identifier: LGPL-2.1-or-later
2*cd60bc56SAndroid Build Coastguard Worker /*
3*cd60bc56SAndroid Build Coastguard Worker  * libfdt - Flat Device Tree manipulation
4*cd60bc56SAndroid Build Coastguard Worker  *	Basic testcase for read-only access
5*cd60bc56SAndroid Build Coastguard Worker  * Copyright (C) 2006 David Gibson, IBM Corporation.
6*cd60bc56SAndroid Build Coastguard Worker  */
7*cd60bc56SAndroid Build Coastguard Worker 
8*cd60bc56SAndroid Build Coastguard Worker #include <stdlib.h>
9*cd60bc56SAndroid Build Coastguard Worker #include <stdio.h>
10*cd60bc56SAndroid Build Coastguard Worker #include <string.h>
11*cd60bc56SAndroid Build Coastguard Worker #include <stdint.h>
12*cd60bc56SAndroid Build Coastguard Worker 
13*cd60bc56SAndroid Build Coastguard Worker #include <libfdt.h>
14*cd60bc56SAndroid Build Coastguard Worker 
15*cd60bc56SAndroid Build Coastguard Worker #include "tests.h"
16*cd60bc56SAndroid Build Coastguard Worker #include "testdata.h"
17*cd60bc56SAndroid Build Coastguard Worker 
main(int argc,char * argv[])18*cd60bc56SAndroid Build Coastguard Worker int main(int argc, char *argv[])
19*cd60bc56SAndroid Build Coastguard Worker {
20*cd60bc56SAndroid Build Coastguard Worker 	void *fdt;
21*cd60bc56SAndroid Build Coastguard Worker 	const struct fdt_node_header *nh;
22*cd60bc56SAndroid Build Coastguard Worker 
23*cd60bc56SAndroid Build Coastguard Worker 	test_init(argc, argv);
24*cd60bc56SAndroid Build Coastguard Worker 	fdt = load_blob_arg(argc, argv);
25*cd60bc56SAndroid Build Coastguard Worker 
26*cd60bc56SAndroid Build Coastguard Worker 	nh = fdt_offset_ptr(fdt, 0, sizeof(*nh));
27*cd60bc56SAndroid Build Coastguard Worker 
28*cd60bc56SAndroid Build Coastguard Worker 	if (! nh)
29*cd60bc56SAndroid Build Coastguard Worker 		FAIL("NULL retrieving root node");
30*cd60bc56SAndroid Build Coastguard Worker 
31*cd60bc56SAndroid Build Coastguard Worker 	if (fdt32_to_cpu(nh->tag) != FDT_BEGIN_NODE)
32*cd60bc56SAndroid Build Coastguard Worker 		FAIL("Wrong tag on root node");
33*cd60bc56SAndroid Build Coastguard Worker 
34*cd60bc56SAndroid Build Coastguard Worker 	if (strlen(nh->name) != 0)
35*cd60bc56SAndroid Build Coastguard Worker 		FAIL("Wrong name for root node, \"%s\" instead of empty",
36*cd60bc56SAndroid Build Coastguard Worker 		     nh->name);
37*cd60bc56SAndroid Build Coastguard Worker 
38*cd60bc56SAndroid Build Coastguard Worker 	PASS();
39*cd60bc56SAndroid Build Coastguard Worker }
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