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-rw-r--r--qemu/dtc/tests/value-labels.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/qemu/dtc/tests/value-labels.c b/qemu/dtc/tests/value-labels.c
new file mode 100644
index 000000000..dcf20593d
--- /dev/null
+++ b/qemu/dtc/tests/value-labels.c
@@ -0,0 +1,127 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Test labels within values
+ * Copyright (C) 2008 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+
+#include <dlfcn.h>
+
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+struct val_label {
+ const char *labelname;
+ int propoff;
+};
+
+struct val_label labels1[] = {
+ { "start1", 0 },
+ { "mid1", 2 },
+ { "end1", -1 },
+};
+
+struct val_label labels2[] = {
+ { "start2", 0 },
+ { "innerstart2", 0 },
+ { "innermid2", 4 },
+ { "innerend2", -1 },
+ { "end2", -1 },
+};
+
+struct val_label labels3[] = {
+ { "start3", 0 },
+ { "innerstart3", 0 },
+ { "innermid3", 1 },
+ { "innerend3", -1 },
+ { "end3", -1 },
+};
+
+static void check_prop_labels(void *sohandle, void *fdt, const char *name,
+ const struct val_label* labels, int n)
+{
+ const struct fdt_property *prop;
+ const char *p;
+ int len;
+ int i;
+
+ prop = fdt_get_property(fdt, 0, name, &len);
+ if (!prop)
+ FAIL("Couldn't locate property \"%s\"", name);
+
+ p = dlsym(sohandle, name);
+ if (!p)
+ FAIL("Couldn't locate label symbol \"%s\"", name);
+
+ if (p != (const char *)prop)
+ FAIL("Label \"%s\" does not point to correct property", name);
+
+ for (i = 0; i < n; i++) {
+ int off = labels[i].propoff;
+
+ if (off == -1)
+ off = len;
+
+ p = dlsym(sohandle, labels[i].labelname);
+ if (!p)
+ FAIL("Couldn't locate label symbol \"%s\"", name);
+
+ if ((p - prop->data) != off)
+ FAIL("Label \"%s\" points to offset %ld instead of %d"
+ "in property \"%s\"", labels[i].labelname,
+ (long)(p - prop->data), off, name);
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ void *sohandle;
+ void *fdt;
+ int err;
+
+ test_init(argc, argv);
+ if (argc != 2)
+ CONFIG("Usage: %s <so file>", argv[0]);
+
+ sohandle = dlopen(argv[1], RTLD_NOW);
+ if (!sohandle)
+ FAIL("Couldn't dlopen() %s", argv[1]);
+
+ fdt = dlsym(sohandle, "dt_blob_start");
+ if (!fdt)
+ FAIL("Couldn't locate \"dt_blob_start\" symbol in %s",
+ argv[1]);
+
+ err = fdt_check_header(fdt);
+ if (err != 0)
+ FAIL("%s contains invalid tree: %s", argv[1],
+ fdt_strerror(err));
+
+
+ check_prop_labels(sohandle, fdt, "prop1", labels1, ARRAY_SIZE(labels1));
+ check_prop_labels(sohandle, fdt, "prop2", labels2, ARRAY_SIZE(labels2));
+ check_prop_labels(sohandle, fdt, "prop3", labels3, ARRAY_SIZE(labels3));
+
+ PASS();
+}