1 files changed, 140 insertions, 0 deletions
diff --git a/libjava/gnu/gcj/tools/gc_analyze/ObjectMap.java b/libjava/gnu/gcj/tools/gc_analyze/ObjectMap.java
new file mode 100644
index 000000000..b55034be1
--- /dev/null
+++ b/libjava/gnu/gcj/tools/gc_analyze/ObjectMap.java
@@ -0,0 +1,140 @@
+/* ObjectMap.java -- Contains a map of all objects keyed by their addresses.
+   Copyright (C) 2007  Free Software Foundation
+
+   This file is part of libgcj.
+
+   This software is copyrighted work licensed under the terms of the
+   Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+   details.  */
+
+package gnu.gcj.tools.gc_analyze;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.TreeMap;
+
+class ObjectMap implements Iterable<Map.Entry<Long, ObjectMap.ObjectItem>>
+{
+
+  class ObjectItem
+  {
+    int used;
+    int size;
+    int kind;
+    long klass;
+    long data;
+    long ptr;
+    String typeName;
+    String string; // only for string objects
+    boolean stringData; // character array pointed to by a string
+    ObjectItem reference; // object at reference points to this
+
+    ItemList points_to = new ItemList();
+    ItemList pointed_by = new ItemList();
+  }
+
+  private TreeMap<Long, ObjectItem> map = new TreeMap<Long, ObjectItem>();
+
+  public Iterator<Map.Entry<Long, ObjectItem>> iterator()
+  {
+    return map.entrySet().iterator();
+  }
+
+  public ObjectItem get(long ptr)
+  {
+    ObjectItem item = map.get(ptr);
+    return item;
+  }
+
+  public ObjectMap(BufferedReader reader) throws IOException
+  {
+    outer_loop:
+    for (;;)
+      {
+        String s = reader.readLine();
+        if (s == null)
+          break;
+        if (s.indexOf("Begin object map") >= 0)
+          {
+            for (;;)
+              {
+                s = reader.readLine();
+                if (s.indexOf("End object map") >= 0)
+                  break outer_loop;
+                String[] items = s.split(",");
+                ObjectItem item = new ObjectItem();
+                long ptr = 0;
+                for (int i=0; i<items.length; i++)
+                  {
+                    String[] x = items[i].split(" ");
+                    String last = x[x.length-1];
+                    switch (i)
+                      {
+                      case 0:
+                        item.used = Integer.parseInt(last);
+                        break;
+                      case 1:
+                        ptr = MemoryMap.parseHexLong(last.substring(2));
+                        break;
+                      case 2:
+                        item.size = Integer.parseInt(last);
+                        break;
+                      case 3:
+                        item.kind = Integer.parseInt(last);
+                        break;
+                      case 4:
+                        if (last.length() > 1)
+                          item.klass =
+                            MemoryMap.parseHexLong(last.substring(2));
+                        else
+                          item.klass  = Integer.parseInt(last,16);
+                        break;
+                      case 5:
+                        try
+                          {
+                            item.data =
+                              Integer.parseInt(last.substring(2), 16);
+                          }
+                        catch (Exception e)
+                          {
+                            item.data = 0;
+                          }
+                        break;
+                      }
+                  }
+                item.ptr = ptr;
+                map.put(ptr, item);
+              } // inner loop
+          } // started inner loop
+      } // outer loop - finding begin
+    for (Map.Entry<Long, ObjectItem> me : this)
+      {
+        ObjectItem item = me.getValue();
+        if (item.data != 0)
+          {
+            // see if data is a pointer to a block
+            ObjectItem referenced = map.get(item.data);
+            if (referenced != null)
+              {
+                referenced.reference = item;
+              }
+          }
+      }
+  } // memoryMap
+
+  public void dump()
+  {
+    for (Map.Entry<Long, ObjectItem> me : this)
+      {
+        long ptr = me.getKey();
+        ObjectItem item = me.getValue();
+        System.out.println("ptr = " + Long.toHexString(ptr)
+                           + ", size = " + item.size
+                           + ", klass = " + Long.toHexString(item.klass)
+                           + ", kind = " + item.kind
+                           + ", data = " + item.data);
+      }
+  }
+}