--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/posix/AddressDataSource.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2001-2004 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+package sun.jvm.hotspot.debugger.posix;
+
+import java.io.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.posix.elf.*;
+
+class AddressDataSource implements DataSource {
+    AddressDataSource(Address addr) {
+        this.addr = addr;
+        offset = 0;
+    }
+
+    public byte readByte() throws IOException {
+        try {
+            byte res = (byte) addr.getCIntegerAt(offset, 1, false);
+            ++offset;
+            return res;
+        } catch (UnmappedAddressException e) {
+            throw (IOException) new IOException("Unmapped address at 0x"
+                    + Long.toHexString(e.getAddress())).initCause(e);
+        } catch (DebuggerException e) {
+            throw (IOException) new IOException().initCause(e);
+        }
+    }
+
+    public short readShort() throws IOException {
+        // NOTE: byte swapping is taken care of at the ELFFileImpl level
+        int b1 = readByte() & 0xFF;
+        int b2 = readByte() & 0xFF;
+        return (short) ((b1 << 8) | b2);
+    }
+
+    public int readInt() throws IOException {
+        // NOTE: byte swapping is taken care of at the ELFFileImpl level
+        int b1 = ((int) readByte()) & 0xFF;
+        int b2 = ((int) readByte()) & 0xFF;
+        int b3 = ((int) readByte()) & 0xFF;
+        int b4 = ((int) readByte()) & 0xFF;
+        return ((b1 << 24) | (b2 << 16) | (b3 << 8) | b4);
+    }
+
+    public long readLong() throws IOException {
+        // NOTE: byte swapping is taken care of at the ELFFileImpl level
+        long b1 = ((long) readByte()) & 0xFFL;
+        long b2 = ((long) readByte()) & 0xFFL;
+        long b3 = ((long) readByte()) & 0xFFL;
+        long b4 = ((long) readByte()) & 0xFFL;
+        long b5 = ((long) readByte()) & 0xFFL;
+        long b6 = ((long) readByte()) & 0xFFL;
+        long b7 = ((long) readByte()) & 0xFFL;
+        long b8 = ((long) readByte()) & 0xFFL;
+        return (((((b1 << 24) | (b2 << 16) | (b3 << 8) | b4)) << 32) |
+                ((((b5 << 24) | (b6 << 16) | (b7 << 8) | b8))));
+    }
+
+    public int read(byte[] b) throws IOException {
+        for (int i = 0; i < b.length; i++) {
+            b[i] = readByte();
+        }
+        return b.length;
+    }
+
+    public void seek(long pos) throws IOException {
+        offset = pos;
+    }
+
+    public long getFilePointer() throws IOException {
+        return offset;
+    }
+
+    public void close() throws IOException {
+    }
+
+    private Address addr;
+    private long offset;
+}