bad5b28049
This fixes a great many sparse warnings on the fdt and libfdt sources. These are mostly due to incorrect mixing of endian annotated and native integer types. This includes fixing a couple of quasi-bugs where we had endian conversions the wrong way around (this will have the right effect in practice, but is certainly conceptually incorrect). This doesn't make the whole tree sparse clean: there are many warnings in bison and lex generated code, and there are a handful of other remaining warnings that are (for now) more trouble than they're worth to fix (and are not genuine bugs). Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
127 lines
3 KiB
C
127 lines
3 KiB
C
/*
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* libfdt - Flat Device Tree manipulation
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* Test labels within values
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* Copyright (C) 2008 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 <stdint.h>
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#include <errno.h>
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#include <dlfcn.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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struct val_label {
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const char *labelname;
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int propoff;
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};
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static struct val_label labels1[] = {
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{ "start1", 0 },
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{ "mid1", 2 },
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{ "end1", -1 },
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};
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static struct val_label labels2[] = {
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{ "start2", 0 },
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{ "innerstart2", 0 },
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{ "innermid2", 4 },
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{ "innerend2", -1 },
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{ "end2", -1 },
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};
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static struct val_label labels3[] = {
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{ "start3", 0 },
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{ "innerstart3", 0 },
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{ "innermid3", 1 },
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{ "innerend3", -1 },
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{ "end3", -1 },
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};
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static void check_prop_labels(void *sohandle, void *fdt, const char *name,
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const struct val_label* labels, int n)
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{
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const struct fdt_property *prop;
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const char *p;
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int len;
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int i;
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prop = fdt_get_property(fdt, 0, name, &len);
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if (!prop)
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FAIL("Couldn't locate property \"%s\"", name);
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p = dlsym(sohandle, name);
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if (!p)
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FAIL("Couldn't locate label symbol \"%s\"", name);
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if (p != (const char *)prop)
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FAIL("Label \"%s\" does not point to correct property", name);
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for (i = 0; i < n; i++) {
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int off = labels[i].propoff;
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if (off == -1)
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off = len;
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p = dlsym(sohandle, labels[i].labelname);
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if (!p)
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FAIL("Couldn't locate label symbol \"%s\"", name);
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if ((p - prop->data) != off)
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FAIL("Label \"%s\" points to offset %ld instead of %d"
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"in property \"%s\"", labels[i].labelname,
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(long)(p - prop->data), off, name);
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}
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}
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int main(int argc, char *argv[])
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{
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void *sohandle;
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void *fdt;
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int err;
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test_init(argc, argv);
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if (argc != 2)
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CONFIG("Usage: %s <so file>", argv[0]);
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sohandle = dlopen(argv[1], RTLD_NOW);
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if (!sohandle)
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FAIL("Couldn't dlopen() %s", argv[1]);
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fdt = dlsym(sohandle, "dt_blob_start");
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if (!fdt)
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FAIL("Couldn't locate \"dt_blob_start\" symbol in %s",
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argv[1]);
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err = fdt_check_header(fdt);
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if (err != 0)
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FAIL("%s contains invalid tree: %s", argv[1],
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fdt_strerror(err));
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check_prop_labels(sohandle, fdt, "prop1", labels1, ARRAY_SIZE(labels1));
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check_prop_labels(sohandle, fdt, "prop2", labels2, ARRAY_SIZE(labels2));
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check_prop_labels(sohandle, fdt, "prop3", labels3, ARRAY_SIZE(labels3));
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PASS();
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}
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