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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/dtc/tests/supernode_atdepth_offset.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/dtc/tests/supernode_atdepth_offset.c')
-rw-r--r--qemu/dtc/tests/supernode_atdepth_offset.c145
1 files changed, 145 insertions, 0 deletions
diff --git a/qemu/dtc/tests/supernode_atdepth_offset.c b/qemu/dtc/tests/supernode_atdepth_offset.c
new file mode 100644
index 000000000..43e120d79
--- /dev/null
+++ b/qemu/dtc/tests/supernode_atdepth_offset.c
@@ -0,0 +1,145 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_supernode_atdepth_offset()
+ * 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 <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+static int path_depth(const char *path)
+{
+ const char *p;
+ int depth = 0;
+
+ if (path[0] != '/')
+ TEST_BUG();
+
+ if (strcmp(path, "/") == 0)
+ return 0;
+ for (p = path; *p; p++)
+ if (*p == '/')
+ depth++;
+
+ /* Special case for path == "/" */
+ if (p == (path + 1))
+ return 0;
+ else
+ return depth;
+}
+
+static int path_prefix(const char *path, int depth)
+{
+ const char *p;
+ int i;
+
+ if (path[0] != '/')
+ TEST_BUG();
+
+ if (depth == 0)
+ return 1;
+
+ p = path;
+ for (i = 0; i < depth; i++)
+ p = p+1 + strcspn(p+1, "/");
+
+ return p - path;
+}
+
+static void check_supernode_atdepth(struct fdt_header *fdt, const char *path,
+ int depth)
+{
+ int pdepth = path_depth(path);
+ char *superpath;
+ int nodeoffset, supernodeoffset, superpathoffset, pathprefixlen;
+ int nodedepth;
+
+ pathprefixlen = path_prefix(path, depth);
+ superpath = alloca(pathprefixlen + 1);
+ strncpy(superpath, path, pathprefixlen);
+ superpath[pathprefixlen] = '\0';
+
+ verbose_printf("Path %s (%d), depth %d, supernode is %s\n",
+ path, pdepth, depth, superpath);
+
+ nodeoffset = fdt_path_offset(fdt, path);
+ if (nodeoffset < 0)
+ FAIL("fdt_path_offset(%s): %s", path, fdt_strerror(nodeoffset));
+ superpathoffset = fdt_path_offset(fdt, superpath);
+ if (superpathoffset < 0)
+ FAIL("fdt_path_offset(%s): %s", superpath,
+ fdt_strerror(superpathoffset));
+
+ supernodeoffset = fdt_supernode_atdepth_offset(fdt, nodeoffset,
+ depth, &nodedepth);
+ if (supernodeoffset < 0)
+ FAIL("fdt_supernode_atdepth_offset(): %s",
+ fdt_strerror(supernodeoffset));
+
+ if (supernodeoffset != superpathoffset)
+ FAIL("fdt_supernode_atdepth_offset() returns %d instead of %d",
+ supernodeoffset, superpathoffset);
+
+ if (nodedepth != pdepth)
+ FAIL("fdt_supernode_atdept_offset() returns node depth %d "
+ "instead of %d", nodedepth, pdepth);
+}
+
+static void check_supernode_overdepth(struct fdt_header *fdt, const char *path)
+{
+ int pdepth = path_depth(path);
+ int nodeoffset, err;
+
+ nodeoffset = fdt_path_offset(fdt, path);
+ if (nodeoffset < 0)
+ FAIL("fdt_path_offset(%s): %s", path, fdt_strerror(nodeoffset));
+
+ err = fdt_supernode_atdepth_offset(fdt, nodeoffset, pdepth + 1, NULL);
+ if (err != -FDT_ERR_NOTFOUND)
+ FAIL("fdt_supernode_atdept_offset(%s, %d) returns %d instead "
+ "of FDT_ERR_NOTFOUND", path, pdepth+1, err);
+}
+
+static void check_path(struct fdt_header *fdt, const char *path)
+{
+ int i;
+
+ for (i = 0; i <= path_depth(path); i++)
+ check_supernode_atdepth(fdt, path, i);
+ check_supernode_overdepth(fdt, path);
+}
+int main(int argc, char *argv[])
+{
+ void *fdt;
+
+ test_init(argc, argv);
+ fdt = load_blob_arg(argc, argv);
+
+ check_path(fdt, "/");
+ check_path(fdt, "/subnode@1");
+ check_path(fdt, "/subnode@2");
+ check_path(fdt, "/subnode@1/subsubnode");
+ check_path(fdt, "/subnode@2/subsubnode@0");
+
+ PASS();
+}