--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/LineNumberTable.java	Thu Dec 20 14:55:42 2012 +0100
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.graal.api.meta;
+
+
+public interface LineNumberTable {
+    int[] getLineNumberEntries();
+    int[] getBciEntries();
+    int getLineNumber(int bci);
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/debug/LineNumberTableImpl.java	Thu Dec 20 14:55:42 2012 +0100
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.graal.hotspot.debug;
+
+import com.oracle.graal.api.meta.*;
+
+
+public class LineNumberTableImpl implements LineNumberTable {
+    private final int[] lineNumbers;
+    private final int[] bci;
+
+    public LineNumberTableImpl(int[] lineNumbers, int[] bci) {
+        this.lineNumbers = lineNumbers;
+        this.bci = bci;
+    }
+
+    @Override
+    public int[] getLineNumberEntries() {
+        return lineNumbers;
+    }
+
+    @Override
+    public int[] getBciEntries() {
+        return bci;
+    }
+
+    @Override
+    public int getLineNumber(@SuppressWarnings("hiding") int bci) {
+        for (int i = 0; i < this.bci.length - 1; i++) {
+            if (this.bci[i] <= bci && bci < this.bci[i + 1]) {
+                return lineNumbers[i];
+            }
+        }
+        return lineNumbers[lineNumbers.length - 1];
+    }
+}