Add qemu 2.4.0
[kvmfornfv.git] / qemu / dtc / tests / node_offset_by_compatible.c
diff --git a/qemu/dtc/tests/node_offset_by_compatible.c b/qemu/dtc/tests/node_offset_by_compatible.c
new file mode 100644 (file)
index 0000000..f62b591
--- /dev/null
@@ -0,0 +1,85 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ *     Testcase for fdt_node_offset_by_compatible()
+ * Copyright (C) 2006 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 <stdarg.h>
+
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+static void check_search(void *fdt, const char *compat, ...)
+{
+       va_list ap;
+       int offset = -1, target;
+
+       va_start(ap, compat);
+       do {
+               target = va_arg(ap, int);
+               verbose_printf("Searching (target = %d): %d ->",
+                              target, offset);
+               offset = fdt_node_offset_by_compatible(fdt, offset, compat);
+               verbose_printf("%d\n", offset);
+
+               if (offset != target)
+                       FAIL("fdt_node_offset_by_compatible(%s) returns %d "
+                            "instead of %d", compat, offset, target);
+       } while (target >= 0);
+
+       va_end(ap);
+}
+
+int main(int argc, char *argv[])
+{
+       void *fdt;
+       int subnode1_offset, subnode2_offset;
+       int subsubnode1_offset, subsubnode2_offset;
+
+       test_init(argc, argv);
+       fdt = load_blob_arg(argc, argv);
+
+       subnode1_offset = fdt_path_offset(fdt, "/subnode@1");
+       subnode2_offset = fdt_path_offset(fdt, "/subnode@2");
+       subsubnode1_offset = fdt_path_offset(fdt, "/subnode@1/subsubnode");
+       subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode@0");
+
+       if ((subnode1_offset < 0) || (subnode2_offset < 0)
+           || (subsubnode1_offset < 0) || (subsubnode2_offset < 0))
+               FAIL("Can't find required nodes");
+
+       check_search(fdt, "test_tree1", 0, -FDT_ERR_NOTFOUND);
+       check_search(fdt, "subnode1", subnode1_offset, -FDT_ERR_NOTFOUND);
+       check_search(fdt, "subsubnode1", subsubnode1_offset, -FDT_ERR_NOTFOUND);
+       check_search(fdt, "subsubnode2", subsubnode2_offset, -FDT_ERR_NOTFOUND);
+       /* Eek.. HACK to make this work whatever the order in the
+        * example tree */
+       if (subsubnode1_offset < subsubnode2_offset)
+               check_search(fdt, "subsubnode", subsubnode1_offset,
+                            subsubnode2_offset, -FDT_ERR_NOTFOUND);
+       else
+               check_search(fdt, "subsubnode", subsubnode2_offset,
+                            subsubnode1_offset, -FDT_ERR_NOTFOUND);
+       check_search(fdt, "nothing-like-this", -FDT_ERR_NOTFOUND);
+
+       PASS();
+}