Add qemu 2.4.0

[kvmfornfv.git] / qemu / dtc / tests / value-labels.c

diff --git a/qemu/dtc/tests/value-labels.c b/qemu/dtc/tests/value-labels.c
new file mode 100644 (file)
index 0000000..dcf2059
--- /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();
+}