1 /*

     2  * libfdt - Flat Device Tree manipulation

     3  *	Testcase for fdt_nop_node()

     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 <ctype.h>

    25 #include <stdint.h>

    26 

    27 #include <fdt.h>

    28 #include <libfdt.h>

    29 

    30 #include "tests.h"

    31 #include "testdata.h"

    32 

    33 int main(int argc, char *argv[])

    34 {

    35 	void *fdt;

    36 	int subnode1_offset, subnode2_offset, subsubnode2_offset;

    37 	int err;

    38 	int oldsize, delsize, newsize;

    39 

    40 	test_init(argc, argv);

    41 	fdt = load_blob_arg(argc, argv);

    42 

    43 	fdt = open_blob_rw(fdt);

    44 

    45 	oldsize = fdt_totalsize(fdt);

    46 

    47 	subnode1_offset = fdt_path_offset(fdt, "/subnode@1");

    48 	if (subnode1_offset < 0)

    49 		FAIL("Couldn't find \"/subnode@1\": %s",

    50 		     fdt_strerror(subnode1_offset));

    51 	check_getprop_cell(fdt, subnode1_offset, "prop-int", TEST_VALUE_1);

    52 

    53 	subnode2_offset = fdt_path_offset(fdt, "/subnode@2");

    54 	if (subnode2_offset < 0)

    55 		FAIL("Couldn't find \"/subnode@2\": %s",

    56 		     fdt_strerror(subnode2_offset));

    57 	check_getprop_cell(fdt, subnode2_offset, "prop-int", TEST_VALUE_2);

    58 

    59 	subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode");

    60 	if (subsubnode2_offset < 0)

    61 		FAIL("Couldn't find \"/subnode@2/subsubnode\": %s",

    62 		     fdt_strerror(subsubnode2_offset));

    63 	check_getprop_cell(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2);

    64 

    65 	err = fdt_del_node(fdt, subnode1_offset);

    66 	if (err)

    67 		FAIL("fdt_del_node(subnode1): %s", fdt_strerror(err));

    68 

    69 	subnode1_offset = fdt_path_offset(fdt, "/subnode@1");

    70 	if (subnode1_offset != -FDT_ERR_NOTFOUND)

    71 		FAIL("fdt_path_offset(subnode1) returned \"%s\" instead of \"%s\"",

    72 		     fdt_strerror(subnode1_offset),

    73 		     fdt_strerror(-FDT_ERR_NOTFOUND));

    74 

    75 	subnode2_offset = fdt_path_offset(fdt, "/subnode@2");

    76 	if (subnode2_offset < 0)

    77 		FAIL("Couldn't find \"/subnode2\": %s",

    78 		     fdt_strerror(subnode2_offset));

    79 	check_getprop_cell(fdt, subnode2_offset, "prop-int", TEST_VALUE_2);

    80 

    81 	subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode");

    82 	if (subsubnode2_offset < 0)

    83 		FAIL("Couldn't find \"/subnode@2/subsubnode\": %s",

    84 		     fdt_strerror(subsubnode2_offset));

    85 	check_getprop_cell(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2);

    86 

    87 	err = fdt_del_node(fdt, subnode2_offset);

    88 	if (err)

    89 		FAIL("fdt_del_node(subnode2): %s", fdt_strerror(err));

    90 

    91 	subnode1_offset = fdt_path_offset(fdt, "/subnode@1");

    92 	if (subnode1_offset != -FDT_ERR_NOTFOUND)

    93 		FAIL("fdt_path_offset(subnode1) returned \"%s\" instead of \"%s\"",

    94 		     fdt_strerror(subnode1_offset),

    95 		     fdt_strerror(-FDT_ERR_NOTFOUND));

    96 

    97 	subnode2_offset = fdt_path_offset(fdt, "/subnode@2");

    98 	if (subnode2_offset != -FDT_ERR_NOTFOUND)

    99 		FAIL("fdt_path_offset(subnode2) returned \"%s\" instead of \"%s\"",

   100 		     fdt_strerror(subnode2_offset),

   101 		     fdt_strerror(-FDT_ERR_NOTFOUND));

   102 

   103 	subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode");

   104 	if (subsubnode2_offset != -FDT_ERR_NOTFOUND)

   105 		FAIL("fdt_path_offset(subsubnode2) returned \"%s\" instead of \"%s\"",

   106 		     fdt_strerror(subsubnode2_offset),

   107 		     fdt_strerror(-FDT_ERR_NOTFOUND));

   108 

   109 	delsize = fdt_totalsize(fdt);

   110 

   111 	err = fdt_pack(fdt);

   112 	if (err)

   113 		FAIL("fdt_pack(): %s", fdt_strerror(err));

   114 

   115 	newsize = fdt_totalsize(fdt);

   116 

   117 	verbose_printf("oldsize = %d, delsize = %d, newsize = %d\n",

   118 		       oldsize, delsize, newsize);

   119 

   120 	if (newsize >= oldsize)

   121 		FAIL("Tree failed to shrink after deletions");

   122 

   123 	PASS();

   124 }