d2a9da0458
At present, the fdt_subnode_offset() and fdt_path_offset() functions in libfdt require the exact name of the nodes in question be passed, including unit address. This is contrary to traditional OF-like finddevice() behaviour, which allows the unit address to be omitted (which is useful when the device name is unambiguous without the address). This patch introduces similar behaviour to fdt_subnode_offset_namelen(), and hence to fdt_subnode_offset() and fdt_path_offset() which are implemented in terms of the former. The unit address can be omitted from the given node name. If this is ambiguous, the first such node in the flattened tree will be selected (this behaviour is consistent with IEEE1275 which specifies only that an arbitrary node matching the given information be selected). This very small change is then followed by many more diffs which change the test examples and testcases to exercise this behaviour. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
122 lines
4 KiB
C
122 lines
4 KiB
C
/*
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* libfdt - Flat Device Tree manipulation
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* Testcase for fdt_nop_node()
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* Copyright (C) 2006 David Gibson, IBM Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <stdint.h>
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#include <fdt.h>
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#include <libfdt.h>
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#include "tests.h"
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#include "testdata.h"
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int main(int argc, char *argv[])
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{
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void *fdt;
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int subnode1_offset, subnode2_offset, subsubnode2_offset;
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int err;
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int oldsize, delsize, newsize;
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test_init(argc, argv);
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fdt = load_blob_arg(argc, argv);
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oldsize = fdt_totalsize(fdt);
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subnode1_offset = fdt_path_offset(fdt, "/subnode@1");
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if (subnode1_offset < 0)
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FAIL("Couldn't find \"/subnode@1\": %s",
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fdt_strerror(subnode1_offset));
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check_getprop_typed(fdt, subnode1_offset, "prop-int", TEST_VALUE_1);
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subnode2_offset = fdt_path_offset(fdt, "/subnode@2");
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if (subnode2_offset < 0)
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FAIL("Couldn't find \"/subnode@2\": %s",
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fdt_strerror(subnode2_offset));
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check_getprop_typed(fdt, subnode2_offset, "prop-int", TEST_VALUE_2);
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subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode");
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if (subsubnode2_offset < 0)
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FAIL("Couldn't find \"/subnode@2/subsubnode\": %s",
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fdt_strerror(subsubnode2_offset));
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check_getprop_typed(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2);
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err = fdt_del_node(fdt, subnode1_offset);
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if (err)
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FAIL("fdt_del_node(subnode1): %s", fdt_strerror(err));
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subnode1_offset = fdt_path_offset(fdt, "/subnode@1");
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if (subnode1_offset != -FDT_ERR_NOTFOUND)
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FAIL("fdt_path_offset(subnode1) returned \"%s\" instead of \"%s\"",
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fdt_strerror(subnode1_offset),
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fdt_strerror(-FDT_ERR_NOTFOUND));
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subnode2_offset = fdt_path_offset(fdt, "/subnode@2");
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if (subnode2_offset < 0)
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FAIL("Couldn't find \"/subnode2\": %s",
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fdt_strerror(subnode2_offset));
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check_getprop_typed(fdt, subnode2_offset, "prop-int", TEST_VALUE_2);
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subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode");
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if (subsubnode2_offset < 0)
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FAIL("Couldn't find \"/subnode@2/subsubnode\": %s",
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fdt_strerror(subsubnode2_offset));
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check_getprop_typed(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2);
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err = fdt_del_node(fdt, subnode2_offset);
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if (err)
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FAIL("fdt_del_node(subnode2): %s", fdt_strerror(err));
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subnode1_offset = fdt_path_offset(fdt, "/subnode@1");
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if (subnode1_offset != -FDT_ERR_NOTFOUND)
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FAIL("fdt_path_offset(subnode1) returned \"%s\" instead of \"%s\"",
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fdt_strerror(subnode1_offset),
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fdt_strerror(-FDT_ERR_NOTFOUND));
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subnode2_offset = fdt_path_offset(fdt, "/subnode@2");
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if (subnode2_offset != -FDT_ERR_NOTFOUND)
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FAIL("fdt_path_offset(subnode2) returned \"%s\" instead of \"%s\"",
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fdt_strerror(subnode2_offset),
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fdt_strerror(-FDT_ERR_NOTFOUND));
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subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode");
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if (subsubnode2_offset != -FDT_ERR_NOTFOUND)
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FAIL("fdt_path_offset(subsubnode2) returned \"%s\" instead of \"%s\"",
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fdt_strerror(subsubnode2_offset),
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fdt_strerror(-FDT_ERR_NOTFOUND));
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delsize = fdt_totalsize(fdt);
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err = fdt_pack(fdt);
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if (err)
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FAIL("fdt_pack(): %s", fdt_strerror(err));
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newsize = fdt_totalsize(fdt);
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verbose_printf("oldsize = %d, delsize = %d, newsize = %d\n",
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oldsize, delsize, newsize);
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if (newsize >= oldsize)
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FAIL("Tree failed to shrink after deletions");
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PASS();
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}
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