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114 lines
2.4 KiB
114 lines
2.4 KiB
// SPDX-License-Identifier: LGPL-2.1-or-later |
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/* |
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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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#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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