changeset 1386:ba07d5be2d51

Merge
author jrose
date Wed, 21 Apr 2010 01:13:15 -0700
parents bc32f286fae0 (diff) 605c9707a766 (current diff)
children 454ff03c0daf
files
diffstat 42 files changed, 802 insertions(+), 409 deletions(-) [+]
line wrap: on
line diff
--- a/agent/src/os/linux/ps_core.c	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/os/linux/ps_core.c	Wed Apr 21 01:13:15 2010 -0700
@@ -884,9 +884,12 @@
       }
 
       // read name of the shared object
-      if (read_string(ph, (uintptr_t) lib_name_addr, lib_name, sizeof(lib_name)) != true) {
+      lib_name[0] = '\0';
+      if (lib_name_addr != 0 &&
+          read_string(ph, (uintptr_t) lib_name_addr, lib_name, sizeof(lib_name)) != true) {
          print_debug("can't read shared object name\n");
-         return false;
+         // don't let failure to read the name stop opening the file.  If something is really wrong
+         // it will fail later.
       }
 
       if (lib_name[0] != '\0') {
--- a/agent/src/share/classes/sun/jvm/hotspot/CommandProcessor.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/CommandProcessor.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2005-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2005-2010 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
@@ -494,6 +494,68 @@
                 }
             }
         },
+        new Command("revptrs", "revptrs address", false) {
+            public void doit(Tokens t) {
+                int tokens = t.countTokens();
+                if (tokens != 1 && (tokens != 2 || !t.nextToken().equals("-c"))) {
+                    usage();
+                    return;
+                }
+                boolean chase = tokens == 2;
+                ReversePtrs revptrs = VM.getVM().getRevPtrs();
+                if (revptrs == null) {
+                    out.println("Computing reverse pointers...");
+                    ReversePtrsAnalysis analysis = new ReversePtrsAnalysis();
+                    final boolean[] complete = new boolean[1];
+                    HeapProgressThunk thunk = new HeapProgressThunk() {
+                            public void heapIterationFractionUpdate(double d) {}
+                            public synchronized void heapIterationComplete() {
+                                complete[0] = true;
+                                notify();
+                            }
+                        };
+                    analysis.setHeapProgressThunk(thunk);
+                    analysis.run();
+                    while (!complete[0]) {
+                        synchronized (thunk) {
+                            try {
+                                thunk.wait();
+                            } catch (Exception e) {
+                            }
+                        }
+                    }
+                    revptrs = VM.getVM().getRevPtrs();
+                    out.println("Done.");
+                }
+                Address a = VM.getVM().getDebugger().parseAddress(t.nextToken());
+                if (VM.getVM().getUniverse().heap().isInReserved(a)) {
+                    OopHandle handle = a.addOffsetToAsOopHandle(0);
+                    Oop oop = VM.getVM().getObjectHeap().newOop(handle);
+                    ArrayList ptrs = revptrs.get(oop);
+                    if (ptrs == null) {
+                        out.println("no live references to " + a);
+                    } else {
+                        if (chase) {
+                            while (ptrs.size() == 1) {
+                                LivenessPathElement e = (LivenessPathElement)ptrs.get(0);
+                                ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                                Oop.printOopValueOn(e.getObj(), new PrintStream(bos));
+                                out.println(bos.toString());
+                                ptrs = revptrs.get(e.getObj());
+                            }
+                        } else {
+                            for (int i = 0; i < ptrs.size(); i++) {
+                                LivenessPathElement e = (LivenessPathElement)ptrs.get(i);
+                                ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                                Oop.printOopValueOn(e.getObj(), new PrintStream(bos));
+                                out.println(bos.toString());
+                                oop = e.getObj();
+                            }
+                        }
+                    }
+                }
+            }
+        },
         new Command("inspect", "inspect expression", false) {
             public void doit(Tokens t) {
                 if (t.countTokens() != 1) {
@@ -816,8 +878,24 @@
                     dumpType(type);
                 } else {
                     Iterator i = agent.getTypeDataBase().getTypes();
+                    // Make sure the types are emitted in an order than can be read back in
+                    HashSet emitted = new HashSet();
+                    Stack pending = new Stack();
                     while (i.hasNext()) {
-                        dumpType((Type)i.next());
+                        Type n = (Type)i.next();
+                        if (emitted.contains(n.getName())) {
+                            continue;
+                        }
+
+                        while (n != null && !emitted.contains(n.getName())) {
+                            pending.push(n);
+                            n = n.getSuperclass();
+                        }
+                        while (!pending.empty()) {
+                            n = (Type)pending.pop();
+                            dumpType(n);
+                            emitted.add(n.getName());
+                        }
                     }
                 }
             }
@@ -846,83 +924,105 @@
 
             }
         },
-        new Command("search", "search [ heap | codecache | threads ] value", false) {
+        new Command("search", "search [ heap | perm | rawheap | codecache | threads ] value", false) {
             public void doit(Tokens t) {
                 if (t.countTokens() != 2) {
                     usage();
-                } else {
-                    String type = t.nextToken();
-                    final Address value = VM.getVM().getDebugger().parseAddress(t.nextToken());
-                    final long stride = VM.getVM().getAddressSize();
-                    if (type.equals("threads")) {
-                        Threads threads = VM.getVM().getThreads();
-                        for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) {
-                            Address base = thread.getBaseOfStackPointer();
-                            Address end = thread.getLastJavaSP();
-                            if (end == null) continue;
-                            if (end.lessThan(base)) {
-                                Address tmp = base;
-                                base = end;
-                                end = tmp;
+                    return;
+                }
+                String type = t.nextToken();
+                final Address value = VM.getVM().getDebugger().parseAddress(t.nextToken());
+                final long stride = VM.getVM().getAddressSize();
+                if (type.equals("threads")) {
+                    Threads threads = VM.getVM().getThreads();
+                    for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) {
+                        Address base = thread.getBaseOfStackPointer();
+                        Address end = thread.getLastJavaSP();
+                        if (end == null) continue;
+                        if (end.lessThan(base)) {
+                            Address tmp = base;
+                            base = end;
+                            end = tmp;
+                        }
+                        out.println("Searching " + base + " " + end);
+                        while (base != null && base.lessThan(end)) {
+                            Address val = base.getAddressAt(0);
+                            if (AddressOps.equal(val, value)) {
+                                out.println(base);
+                            }
+                            base = base.addOffsetTo(stride);
+                        }
+                    }
+                } else if (type.equals("rawheap")) {
+                    RawHeapVisitor iterator = new RawHeapVisitor() {
+                            public void prologue(long used) {
                             }
-                            out.println("Searching " + base + " " + end);
-                            while (base != null && base.lessThan(end)) {
-                                Address val = base.getAddressAt(0);
+
+                            public void visitAddress(Address addr) {
+                                Address val = addr.getAddressAt(0);
                                 if (AddressOps.equal(val, value)) {
-                                    out.println(base);
+                                        out.println("found at " + addr);
                                 }
-                                base = base.addOffsetTo(stride);
+                            }
+                            public void visitCompOopAddress(Address addr) {
+                                Address val = addr.getCompOopAddressAt(0);
+                                if (AddressOps.equal(val, value)) {
+                                    out.println("found at " + addr);
+                                }
                             }
-                        }
-                    } else if (type.equals("heap")) {
-                        RawHeapVisitor iterator = new RawHeapVisitor() {
-                                public void prologue(long used) {
-                                }
-
-                                public void visitAddress(Address addr) {
-                                    Address val = addr.getAddressAt(0);
+                            public void epilogue() {
+                            }
+                        };
+                    VM.getVM().getObjectHeap().iterateRaw(iterator);
+                } else if (type.equals("heap") || type.equals("perm")) {
+                    HeapVisitor iterator = new DefaultHeapVisitor() {
+                            public boolean doObj(Oop obj) {
+                                int index = 0;
+                                Address start = obj.getHandle();
+                                long end = obj.getObjectSize();
+                                while (index < end) {
+                                    Address val = start.getAddressAt(index);
                                     if (AddressOps.equal(val, value)) {
-                                        out.println("found at " + addr);
+                                        out.println("found in " + obj.getHandle());
+                                        break;
                                     }
-                                }
-                                public void visitCompOopAddress(Address addr) {
-                                    Address val = addr.getCompOopAddressAt(0);
-                                    if (AddressOps.equal(val, value)) {
-                                        out.println("found at " + addr);
-                                    }
-                                }
-                                public void epilogue() {
-                                }
-                            };
-                        VM.getVM().getObjectHeap().iterateRaw(iterator);
-                    } else if (type.equals("codecache")) {
-                        CodeCacheVisitor v = new CodeCacheVisitor() {
-                                public void prologue(Address start, Address end) {
+                                    index += 4;
                                 }
-                                public void visit(CodeBlob blob) {
-                                    boolean printed = false;
-                                    Address base = blob.getAddress();
-                                    Address end = base.addOffsetTo(blob.getSize());
-                                    while (base != null && base.lessThan(end)) {
-                                        Address val = base.getAddressAt(0);
-                                        if (AddressOps.equal(val, value)) {
-                                            if (!printed) {
-                                                printed = true;
-                                                blob.printOn(out);
-                                            }
-                                            out.println("found at " + base + "\n");
+                                return false;
+                            }
+                        };
+                    if (type.equals("heap")) {
+                        VM.getVM().getObjectHeap().iterate(iterator);
+                    } else {
+                        VM.getVM().getObjectHeap().iteratePerm(iterator);
+                    }
+                } else if (type.equals("codecache")) {
+                    CodeCacheVisitor v = new CodeCacheVisitor() {
+                            public void prologue(Address start, Address end) {
+                            }
+                            public void visit(CodeBlob blob) {
+                                boolean printed = false;
+                                Address base = blob.getAddress();
+                                Address end = base.addOffsetTo(blob.getSize());
+                                while (base != null && base.lessThan(end)) {
+                                    Address val = base.getAddressAt(0);
+                                    if (AddressOps.equal(val, value)) {
+                                        if (!printed) {
+                                            printed = true;
+                                            blob.printOn(out);
                                         }
-                                        base = base.addOffsetTo(stride);
+                                        out.println("found at " + base + "\n");
                                     }
+                                    base = base.addOffsetTo(stride);
                                 }
-                                public void epilogue() {
-                                }
+                            }
+                            public void epilogue() {
+                            }
 
 
-                            };
-                        VM.getVM().getCodeCache().iterate(v);
+                        };
+                    VM.getVM().getCodeCache().iterate(v);
 
-                    }
                 }
             }
         },
@@ -957,12 +1057,19 @@
                     Threads threads = VM.getVM().getThreads();
                     boolean all = name.equals("-a");
                     for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) {
-                        StringWriter sw = new StringWriter();
                         ByteArrayOutputStream bos = new ByteArrayOutputStream();
                         thread.printThreadIDOn(new PrintStream(bos));
                         if (all || bos.toString().equals(name)) {
+                            out.println(bos.toString() + " = " + thread.getAddress());
                             HTMLGenerator gen = new HTMLGenerator(false);
-                            out.println(gen.genHTMLForJavaStackTrace(thread));
+                            try {
+                                out.println(gen.genHTMLForJavaStackTrace(thread));
+                            } catch (Exception e) {
+                                err.println("Error: " + e);
+                                if (verboseExceptions) {
+                                    e.printStackTrace(err);
+                                }
+                            }
                             if (!all) return;
                         }
                     }
@@ -970,6 +1077,26 @@
                 }
             }
         },
+        new Command("thread", "thread { -a | id }", false) {
+            public void doit(Tokens t) {
+                if (t.countTokens() != 1) {
+                    usage();
+                } else {
+                    String name = t.nextToken();
+                    Threads threads = VM.getVM().getThreads();
+                    boolean all = name.equals("-a");
+                    for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) {
+                        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                        thread.printThreadIDOn(new PrintStream(bos));
+                        if (all || bos.toString().equals(name)) {
+                            out.println(bos.toString() + " = " + thread.getAddress());
+                            if (!all) return;
+                        }
+                    }
+                    out.println("Couldn't find thread " + name);
+                }
+            }
+        },
 
         new Command("threads", false) {
             public void doit(Tokens t) {
@@ -1161,7 +1288,7 @@
         }
     }
 
-    static Pattern historyPattern = Pattern.compile("((!\\*)|(!\\$)|(!!-?)|(!-?[0-9][0-9]*))");
+    static Pattern historyPattern = Pattern.compile("((!\\*)|(!\\$)|(!!-?)|(!-?[0-9][0-9]*)|(![a-zA-Z][^ ]*))");
 
     public void executeCommand(String ln) {
         if (ln.indexOf('!') != -1) {
@@ -1195,14 +1322,37 @@
                         result.append(item.at(item.countTokens() - 1));
                     } else {
                         String tail = cmd.substring(1);
-                        int index = Integer.parseInt(tail);
-                        if (index < 0) {
-                            index = history.size() + index;
+                        switch (tail.charAt(0)) {
+                        case '0':
+                        case '1':
+                        case '2':
+                        case '3':
+                        case '4':
+                        case '5':
+                        case '6':
+                        case '7':
+                        case '8':
+                        case '9':
+                        case '-': {
+                            int index = Integer.parseInt(tail);
+                            if (index < 0) {
+                                index = history.size() + index;
+                            }
+                            if (index > size) {
+                                err.println("No such history item");
+                            } else {
+                                result.append((String)history.get(index));
+                            }
+                            break;
                         }
-                        if (index > size) {
-                            err.println("No such history item");
-                        } else {
-                            result.append((String)history.get(index));
+                        default: {
+                            for (int i = history.size() - 1; i >= 0; i--) {
+                                String s = (String)history.get(i);
+                                if (s.startsWith(tail)) {
+                                    result.append(s);
+                                }
+                            }
+                        }
                         }
                     }
                 }
--- a/agent/src/share/classes/sun/jvm/hotspot/HSDB.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/HSDB.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2000-2010 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
@@ -985,6 +985,12 @@
               annoPanel.addAnnotation(new Annotation(curFrame.addressOfInterpreterFrameExpressionStack(),
                                                      curFrame.addressOfInterpreterFrameTOS(),
                                                      "Interpreter expression stack"));
+              Address monBegin = curFrame.interpreterFrameMonitorBegin().address();
+              Address monEnd = curFrame.interpreterFrameMonitorEnd().address();
+              if (!monBegin.equals(monEnd)) {
+                  annoPanel.addAnnotation(new Annotation(monBegin, monEnd,
+                                                         "BasicObjectLocks"));
+              }
               if (interpreterFrameMethod != null) {
                 // The offset is just to get the right stack slots highlighted in the output
                 int offset = 1;
--- a/agent/src/share/classes/sun/jvm/hotspot/bugspot/BugSpot.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/bugspot/BugSpot.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2003 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2001-2010 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
@@ -294,7 +294,7 @@
     attachDialog.setSize(400, 300);
     GraphicsUtilities.centerInContainer(attachDialog.getComponent(),
                                         getParentDimension(attachDialog.getComponent()));
-    attachDialog.show();
+    attachDialog.setVisible(true);
   }
 
   public void showThreadsDialog() {
@@ -321,7 +321,7 @@
                                            getParentDimension(threadsDialog.getComponent()));
     GraphicsUtilities.centerInContainer(threadsDialog.getComponent(),
                                         getParentDimension(threadsDialog.getComponent()));
-    threadsDialog.show();
+    threadsDialog.setVisible(true);
   }
 
   public void showMemoryDialog() {
@@ -341,7 +341,7 @@
                                            getParentDimension(memoryDialog.getComponent()));
     GraphicsUtilities.centerInContainer(memoryDialog.getComponent(),
                                         getParentDimension(memoryDialog.getComponent()));
-    memoryDialog.show();
+    memoryDialog.setVisible(true);
   }
 
   /** Changes the editor factory this debugger uses to display source
@@ -530,7 +530,7 @@
       addFrame(stackFrame);
       stackFrame.setSize(400, 200);
       GraphicsUtilities.moveToInContainer(stackFrame.getComponent(), 0.0f, 1.0f, 0, 20);
-      stackFrame.show();
+      stackFrame.setVisible(true);
 
       // Create register panel
       registerPanel = new RegisterPanel();
@@ -544,7 +544,7 @@
       registerFrame.setSize(225, 200);
       GraphicsUtilities.moveToInContainer(registerFrame.getComponent(),
                                           1.0f, 0.0f, 0, 0);
-      registerFrame.show();
+      registerFrame.setVisible(true);
 
       resetCurrentThread();
     } catch (DebuggerException e) {
@@ -979,7 +979,7 @@
                                                1.0f,
                                                0.85f,
                                                getParentDimension(editorFrame.getComponent()));
-        editorFrame.show();
+        editorFrame.setVisible(true);
         shown = true;
       }
       code.showLineNumber(lineNo);
--- a/agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeDisassembler.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeDisassembler.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2002-2010 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
@@ -96,10 +96,6 @@
       addBytecodeClass(Bytecodes._dstore, BytecodeStore.class);
       addBytecodeClass(Bytecodes._astore, BytecodeStore.class);
       addBytecodeClass(Bytecodes._tableswitch, BytecodeTableswitch.class);
-
-      // only special fast_xxx cases. others are handled differently.
-      addBytecodeClass(Bytecodes._fast_iaccess_0, BytecodeFastAAccess0.class);
-      addBytecodeClass(Bytecodes._fast_aaccess_0, BytecodeFastIAccess0.class);
    }
 
    public BytecodeDisassembler(Method method) {
--- a/agent/src/share/classes/sun/jvm/hotspot/oops/ConstantPool.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/ConstantPool.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2000-2010 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
@@ -263,11 +263,12 @@
     case JVM_CONSTANT_NameAndType:        return "JVM_CONSTANT_NameAndType";
     case JVM_CONSTANT_Invalid:            return "JVM_CONSTANT_Invalid";
     case JVM_CONSTANT_UnresolvedClass:    return "JVM_CONSTANT_UnresolvedClass";
+    case JVM_CONSTANT_UnresolvedClassInError:    return "JVM_CONSTANT_UnresolvedClassInError";
     case JVM_CONSTANT_ClassIndex:         return "JVM_CONSTANT_ClassIndex";
     case JVM_CONSTANT_UnresolvedString:   return "JVM_CONSTANT_UnresolvedString";
     case JVM_CONSTANT_StringIndex:        return "JVM_CONSTANT_StringIndex";
     }
-    throw new InternalError("unknown tag");
+    throw new InternalError("Unknown tag: " + tag);
   }
 
   public void iterateFields(OopVisitor visitor, boolean doVMFields) {
@@ -304,6 +305,7 @@
           index++;
           break;
 
+        case JVM_CONSTANT_UnresolvedClassInError:
         case JVM_CONSTANT_UnresolvedClass:
         case JVM_CONSTANT_Class:
         case JVM_CONSTANT_UnresolvedString:
@@ -409,6 +411,7 @@
               }
 
               // case JVM_CONSTANT_ClassIndex:
+              case JVM_CONSTANT_UnresolvedClassInError:
               case JVM_CONSTANT_UnresolvedClass: {
                   dos.writeByte(JVM_CONSTANT_Class);
                   String klassName = getSymbolAt(ci).asString();
@@ -464,6 +467,8 @@
                                           + ", type = " + signatureIndex);
                   break;
               }
+              default:
+                  throw new InternalError("unknown tag: " + cpConstType);
           } // switch
       }
       dos.flush();
--- a/agent/src/share/classes/sun/jvm/hotspot/runtime/ClassConstants.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/ClassConstants.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2002-2010 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
@@ -58,6 +58,9 @@
     // Temporary tag while constructing constant pool
     public static final int JVM_CONSTANT_StringIndex        = 103;
 
+    // Temporary tag while constructing constant pool
+    public static final int JVM_CONSTANT_UnresolvedClassInError = 104;
+
     // 1.5 major/minor version numbers from JVM spec. 3rd edition
     public static final short MAJOR_VERSION = 49;
     public static final short MINOR_VERSION = 0;
--- a/agent/src/share/classes/sun/jvm/hotspot/runtime/SignatureIterator.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/SignatureIterator.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2001 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2001-2010 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
@@ -108,7 +108,7 @@
         return BasicTypeSize.getTArraySize();
       }
     }
-    throw new RuntimeException("Should not reach here");
+    throw new RuntimeException("Should not reach here: char " + (char)_signature.getByteAt(_index) + " @ " + _index + " in " + _signature.asString());
   }
   protected void checkSignatureEnd() {
     if (_index < _signature.getLength()) {
--- a/agent/src/share/classes/sun/jvm/hotspot/tools/jcore/ClassWriter.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/tools/jcore/ClassWriter.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2002-2010 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
@@ -238,6 +238,7 @@
                 }
 
                 // case JVM_CONSTANT_ClassIndex:
+                case JVM_CONSTANT_UnresolvedClassInError:
                 case JVM_CONSTANT_UnresolvedClass: {
                      dos.writeByte(JVM_CONSTANT_Class);
                      String klassName = cpool.getSymbolAt(ci).asString();
@@ -296,6 +297,8 @@
                                         + ", type = " + signatureIndex);
                      break;
                 }
+                default:
+                  throw new InternalError("Unknown tag: " + cpConstType);
             } // switch
         }
     }
--- a/agent/src/share/classes/sun/jvm/hotspot/ui/FrameWrapper.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/ui/FrameWrapper.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2001 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2001-2010 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
@@ -39,7 +39,6 @@
   public void       setVisible(boolean visible);
   public void       setSize(int x, int y);
   public void       pack();
-  public void       show();
   public void       dispose();
   public void       setBackground(Color color);
   public void       setResizable(boolean resizable);
--- a/agent/src/share/classes/sun/jvm/hotspot/ui/classbrowser/HTMLGenerator.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/ui/classbrowser/HTMLGenerator.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2002-2010 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
@@ -95,8 +95,10 @@
 
         // list tags
         void beginList()  { beginTag("ul"); nl(); }
+        void endList()    { endTag("ul"); nl();   }
+        void beginListItem() { beginTag("li"); }
+        void endListItem()   { endTag("li"); nl();   }
         void li(String s) { wrap("li", s); nl();  }
-        void endList()    { endTag("ul"); nl();   }
 
         // table tags
         void beginTable(int border) {
@@ -505,6 +507,11 @@
                buf.cell(cpool.getSymbolAt(index).asString());
                break;
 
+            case JVM_CONSTANT_UnresolvedClassInError:
+               buf.cell("JVM_CONSTANT_UnresolvedClassInError");
+               buf.cell(cpool.getSymbolAt(index).asString());
+               break;
+
             case JVM_CONSTANT_Class:
                buf.cell("JVM_CONSTANT_Class");
                Klass klass = (Klass) cpool.getObjAt(index);
@@ -564,6 +571,9 @@
                buf.cell("JVM_CONSTANT_StringIndex");
                buf.cell(Integer.toString(cpool.getIntAt(index)));
                break;
+
+            default:
+               throw new InternalError("unknown tag: " + ctag);
          }
 
          buf.endTag("tr");
@@ -671,7 +681,16 @@
                              buf.cell(Integer.toString(curBci) + spaces);
 
                              buf.beginTag("td");
-                             String instrStr = escapeHTMLSpecialChars(instr.toString());
+                             String instrStr = null;
+                             try {
+                                 instrStr = escapeHTMLSpecialChars(instr.toString());
+                             } catch (RuntimeException re) {
+                                 buf.append("exception during bytecode processing");
+                                 buf.endTag("td");
+                                 buf.endTag("tr");
+                                 re.printStackTrace();
+                                 return;
+                             }
 
                              if (instr instanceof BytecodeNew) {
                                 BytecodeNew newBytecode = (BytecodeNew) instr;
@@ -1396,9 +1415,7 @@
          final SymbolFinder symFinder = createSymbolFinder();
          final Disassembler disasm = createDisassembler(startPc, code);
          class NMethodVisitor implements InstructionVisitor {
-            boolean prevWasCall;
             public void prologue() {
-               prevWasCall = false;
             }
 
             public void visit(long currentPc, Instruction instr) {
@@ -1418,8 +1435,7 @@
 
                PCDesc pcDesc = (PCDesc) safepoints.get(longToAddress(currentPc));
 
-               boolean isSafepoint = (pcDesc != null);
-               if (isSafepoint && prevWasCall) {
+               if (pcDesc != null) {
                   buf.append(genSafepointInfo(nmethod, pcDesc));
                }
 
@@ -1435,11 +1451,6 @@
                }
 
                buf.br();
-               if (isSafepoint && !prevWasCall) {
-                 buf.append(genSafepointInfo(nmethod, pcDesc));
-               }
-
-               prevWasCall = instr.isCall();
             }
 
             public void epilogue() {
@@ -1783,22 +1794,20 @@
          buf.h3("Fields");
          buf.beginList();
          for (int f = 0; f < numFields; f += InstanceKlass.NEXT_OFFSET) {
-           int nameIndex = fields.getShortAt(f + InstanceKlass.NAME_INDEX_OFFSET);
-           int sigIndex  = fields.getShortAt(f + InstanceKlass.SIGNATURE_INDEX_OFFSET);
-           int genSigIndex = fields.getShortAt(f + InstanceKlass.GENERIC_SIGNATURE_INDEX_OFFSET);
-           Symbol f_name = cp.getSymbolAt(nameIndex);
-           Symbol f_sig  = cp.getSymbolAt(sigIndex);
-           Symbol f_genSig = (genSigIndex != 0)? cp.getSymbolAt(genSigIndex) : null;
-           AccessFlags acc = new AccessFlags(fields.getShortAt(f + InstanceKlass.ACCESS_FLAGS_OFFSET));
+           sun.jvm.hotspot.oops.Field field = klass.getFieldByIndex(f);
+           String f_name = ((NamedFieldIdentifier)field.getID()).getName();
+           Symbol f_sig  = field.getSignature();
+           Symbol f_genSig = field.getGenericSignature();
+           AccessFlags acc = field.getAccessFlagsObj();
 
-           buf.beginTag("li");
+           buf.beginListItem();
            buf.append(genFieldModifierString(acc));
            buf.append(' ');
            Formatter sigBuf = new Formatter(genHTML);
            new SignatureConverter(f_sig, sigBuf.getBuffer()).dispatchField();
            buf.append(sigBuf.toString().replace('/', '.'));
            buf.append(' ');
-           buf.append(f_name.asString());
+           buf.append(f_name);
            buf.append(';');
            // is it generic?
            if (f_genSig != null) {
@@ -1806,7 +1815,8 @@
               buf.append(escapeHTMLSpecialChars(f_genSig.asString()));
               buf.append("] ");
            }
-           buf.endTag("li");
+           buf.append(" (offset = " + field.getOffset() + ")");
+           buf.endListItem();
          }
          buf.endList();
       }
--- a/agent/src/share/classes/sun/jvm/hotspot/utilities/Assert.java	Tue Apr 20 21:38:23 2010 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/Assert.java	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2000-2010 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
@@ -28,7 +28,7 @@
   public static boolean ASSERTS_ENABLED = true;
 
   public static void that(boolean test, String message) {
-    if (!test) {
+    if (ASSERTS_ENABLED && !test) {
       throw new AssertionFailure(message);
     }
   }
--- a/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -388,6 +388,60 @@
 }
 
 
+// Emit the code to remove the frame from the stack in the exception
+// unwind path.
+int LIR_Assembler::emit_unwind_handler() {
+#ifndef PRODUCT
+  if (CommentedAssembly) {
+    _masm->block_comment("Unwind handler");
+  }
+#endif
+
+  int offset = code_offset();
+
+  // Fetch the exception from TLS and clear out exception related thread state
+  __ ld_ptr(G2_thread, in_bytes(JavaThread::exception_oop_offset()), O0);
+  __ st_ptr(G0, G2_thread, in_bytes(JavaThread::exception_oop_offset()));
+  __ st_ptr(G0, G2_thread, in_bytes(JavaThread::exception_pc_offset()));
+
+  __ bind(_unwind_handler_entry);
+  __ verify_not_null_oop(O0);
+  if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) {
+    __ mov(O0, I0);  // Preserve the exception
+  }
+
+  // Preform needed unlocking
+  MonitorExitStub* stub = NULL;
+  if (method()->is_synchronized()) {
+    monitor_address(0, FrameMap::I1_opr);
+    stub = new MonitorExitStub(FrameMap::I1_opr, true, 0);
+    __ unlock_object(I3, I2, I1, *stub->entry());
+    __ bind(*stub->continuation());
+  }
+
+  if (compilation()->env()->dtrace_method_probes()) {
+    jobject2reg(method()->constant_encoding(), O0);
+    __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), relocInfo::runtime_call_type);
+    __ delayed()->nop();
+  }
+
+  if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) {
+    __ mov(I0, O0);  // Restore the exception
+  }
+
+  // dispatch to the unwind logic
+  __ call(Runtime1::entry_for(Runtime1::unwind_exception_id), relocInfo::runtime_call_type);
+  __ delayed()->nop();
+
+  // Emit the slow path assembly
+  if (stub != NULL) {
+    stub->emit_code(this);
+  }
+
+  return offset;
+}
+
+
 int LIR_Assembler::emit_deopt_handler() {
   // if the last instruction is a call (typically to do a throw which
   // is coming at the end after block reordering) the return address
@@ -2050,26 +2104,29 @@
 }
 
 
-void LIR_Assembler::throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info, bool unwind) {
+void LIR_Assembler::throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
   assert(exceptionOop->as_register() == Oexception, "should match");
-  assert(unwind || exceptionPC->as_register() == Oissuing_pc, "should match");
+  assert(exceptionPC->as_register() == Oissuing_pc, "should match");
 
   info->add_register_oop(exceptionOop);
 
-  if (unwind) {
-    __ call(Runtime1::entry_for(Runtime1::unwind_exception_id), relocInfo::runtime_call_type);
-    __ delayed()->nop();
-  } else {
-    // reuse the debug info from the safepoint poll for the throw op itself
-    address pc_for_athrow  = __ pc();
-    int pc_for_athrow_offset = __ offset();
-    RelocationHolder rspec = internal_word_Relocation::spec(pc_for_athrow);
-    __ set(pc_for_athrow, Oissuing_pc, rspec);
-    add_call_info(pc_for_athrow_offset, info); // for exception handler
-
-    __ call(Runtime1::entry_for(Runtime1::handle_exception_id), relocInfo::runtime_call_type);
-    __ delayed()->nop();
-  }
+  // reuse the debug info from the safepoint poll for the throw op itself
+  address pc_for_athrow  = __ pc();
+  int pc_for_athrow_offset = __ offset();
+  RelocationHolder rspec = internal_word_Relocation::spec(pc_for_athrow);
+  __ set(pc_for_athrow, Oissuing_pc, rspec);
+  add_call_info(pc_for_athrow_offset, info); // for exception handler
+
+  __ call(Runtime1::entry_for(Runtime1::handle_exception_id), relocInfo::runtime_call_type);
+  __ delayed()->nop();
+}
+
+
+void LIR_Assembler::unwind_op(LIR_Opr exceptionOop) {
+  assert(exceptionOop->as_register() == Oexception, "should match");
+
+  __ br(Assembler::always, false, Assembler::pt, _unwind_handler_entry);
+  __ delayed()->nop();
 }
 
 
@@ -2358,7 +2415,7 @@
   if (UseSlowPath ||
       (!UseFastNewObjectArray && (op->type() == T_OBJECT || op->type() == T_ARRAY)) ||
       (!UseFastNewTypeArray   && (op->type() != T_OBJECT && op->type() != T_ARRAY))) {
-    __ br(Assembler::always, false, Assembler::pn, *op->stub()->entry());
+    __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry());
     __ delayed()->nop();
   } else {
     __ allocate_array(op->obj()->as_register(),
--- a/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -455,6 +455,60 @@
 }
 
 
+// Emit the code to remove the frame from the stack in the exception
+// unwind path.
+int LIR_Assembler::emit_unwind_handler() {
+#ifndef PRODUCT
+  if (CommentedAssembly) {
+    _masm->block_comment("Unwind handler");
+  }
+#endif
+
+  int offset = code_offset();
+
+  // Fetch the exception from TLS and clear out exception related thread state
+  __ get_thread(rsi);
+  __ movptr(rax, Address(rsi, JavaThread::exception_oop_offset()));
+  __ movptr(Address(rsi, JavaThread::exception_oop_offset()), (int32_t)NULL_WORD);
+  __ movptr(Address(rsi, JavaThread::exception_pc_offset()), (int32_t)NULL_WORD);
+
+  __ bind(_unwind_handler_entry);
+  __ verify_not_null_oop(rax);
+  if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) {
+    __ mov(rsi, rax);  // Preserve the exception
+  }
+
+  // Preform needed unlocking
+  MonitorExitStub* stub = NULL;
+  if (method()->is_synchronized()) {
+    monitor_address(0, FrameMap::rax_opr);
+    stub = new MonitorExitStub(FrameMap::rax_opr, true, 0);
+    __ unlock_object(rdi, rbx, rax, *stub->entry());
+    __ bind(*stub->continuation());
+  }
+
+  if (compilation()->env()->dtrace_method_probes()) {
+    __ movoop(Address(rsp, 0), method()->constant_encoding());
+    __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit)));
+  }
+
+  if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) {
+    __ mov(rax, rsi);  // Restore the exception
+  }
+
+  // remove the activation and dispatch to the unwind handler
+  __ remove_frame(initial_frame_size_in_bytes());
+  __ jump(RuntimeAddress(Runtime1::entry_for(Runtime1::unwind_exception_id)));
+
+  // Emit the slow path assembly
+  if (stub != NULL) {
+    stub->emit_code(this);
+  }
+
+  return offset;
+}
+
+
 int LIR_Assembler::emit_deopt_handler() {
   // if the last instruction is a call (typically to do a throw which
   // is coming at the end after block reordering) the return address
@@ -2795,42 +2849,43 @@
 }
 
 
-void LIR_Assembler::throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info, bool unwind) {
+void LIR_Assembler::throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
   assert(exceptionOop->as_register() == rax, "must match");
-  assert(unwind || exceptionPC->as_register() == rdx, "must match");
+  assert(exceptionPC->as_register() == rdx, "must match");
 
   // exception object is not added to oop map by LinearScan
   // (LinearScan assumes that no oops are in fixed registers)
   info->add_register_oop(exceptionOop);
   Runtime1::StubID unwind_id;
 
-  if (!unwind) {
-    // get current pc information
-    // pc is only needed if the method has an exception handler, the unwind code does not need it.
-    int pc_for_athrow_offset = __ offset();
-    InternalAddress pc_for_athrow(__ pc());
-    __ lea(exceptionPC->as_register(), pc_for_athrow);
-    add_call_info(pc_for_athrow_offset, info); // for exception handler
-
-    __ verify_not_null_oop(rax);
-    // search an exception handler (rax: exception oop, rdx: throwing pc)
-    if (compilation()->has_fpu_code()) {
-      unwind_id = Runtime1::handle_exception_id;
-    } else {
-      unwind_id = Runtime1::handle_exception_nofpu_id;
-    }
-    __ call(RuntimeAddress(Runtime1::entry_for(unwind_id)));
+  // get current pc information
+  // pc is only needed if the method has an exception handler, the unwind code does not need it.
+  int pc_for_athrow_offset = __ offset();
+  InternalAddress pc_for_athrow(__ pc());
+  __ lea(exceptionPC->as_register(), pc_for_athrow);
+  add_call_info(pc_for_athrow_offset, info); // for exception handler
+
+  __ verify_not_null_oop(rax);
+  // search an exception handler (rax: exception oop, rdx: throwing pc)
+  if (compilation()->has_fpu_code()) {
+    unwind_id = Runtime1::handle_exception_id;
   } else {
-    // remove the activation
-    __ remove_frame(initial_frame_size_in_bytes());
-    __ jump(RuntimeAddress(Runtime1::entry_for(Runtime1::unwind_exception_id)));
+    unwind_id = Runtime1::handle_exception_nofpu_id;
   }
+  __ call(RuntimeAddress(Runtime1::entry_for(unwind_id)));
 
   // enough room for two byte trap
   __ nop();
 }
 
 
+void LIR_Assembler::unwind_op(LIR_Opr exceptionOop) {
+  assert(exceptionOop->as_register() == rax, "must match");
+
+  __ jmp(_unwind_handler_entry);
+}
+
+
 void LIR_Assembler::shift_op(LIR_Code code, LIR_Opr left, LIR_Opr count, LIR_Opr dest, LIR_Opr tmp) {
 
   // optimized version for linear scan:
--- a/src/cpu/zero/vm/cppInterpreter_zero.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/cppInterpreter_zero.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -39,21 +39,9 @@
 
 void CppInterpreter::normal_entry(methodOop method, intptr_t UNUSED, TRAPS) {
   JavaThread *thread = (JavaThread *) THREAD;
-  ZeroStack *stack = thread->zero_stack();
-
-  // Adjust the caller's stack frame to accomodate any additional
-  // local variables we have contiguously with our parameters.
-  int extra_locals = method->max_locals() - method->size_of_parameters();
-  if (extra_locals > 0) {
-    if (extra_locals > stack->available_words()) {
-      Unimplemented();
-    }
-    for (int i = 0; i < extra_locals; i++)
-      stack->push(0);
-  }
 
   // Allocate and initialize our frame.
-  InterpreterFrame *frame = InterpreterFrame::build(stack, method, thread);
+  InterpreterFrame *frame = InterpreterFrame::build(method, CHECK);
   thread->push_zero_frame(frame);
 
   // Execute those bytecodes!
@@ -76,12 +64,6 @@
   intptr_t *result = NULL;
   int result_slots = 0;
 
-  // Check we're not about to run out of stack
-  if (stack_overflow_imminent(thread)) {
-    CALL_VM_NOCHECK(InterpreterRuntime::throw_StackOverflowError(thread));
-    goto unwind_and_return;
-  }
-
   while (true) {
     // We can set up the frame anchor with everything we want at
     // this point as we are thread_in_Java and no safepoints can
@@ -123,9 +105,9 @@
       int monitor_words = frame::interpreter_frame_monitor_size();
 
       // Allocate the space
-      if (monitor_words > stack->available_words()) {
-        Unimplemented();
-      }
+      stack->overflow_check(monitor_words, THREAD);
+      if (HAS_PENDING_EXCEPTION)
+        break;
       stack->alloc(monitor_words * wordSize);
 
       // Move the expression stack contents
@@ -172,8 +154,6 @@
     }
   }
 
- unwind_and_return:
-
   // Unwind the current frame
   thread->pop_zero_frame();
 
@@ -193,17 +173,11 @@
   ZeroStack *stack = thread->zero_stack();
 
   // Allocate and initialize our frame
-  InterpreterFrame *frame = InterpreterFrame::build(stack, method, thread);
+  InterpreterFrame *frame = InterpreterFrame::build(method, CHECK);
   thread->push_zero_frame(frame);
   interpreterState istate = frame->interpreter_state();
   intptr_t *locals = istate->locals();
 
-  // Check we're not about to run out of stack
-  if (stack_overflow_imminent(thread)) {
-    CALL_VM_NOCHECK(InterpreterRuntime::throw_StackOverflowError(thread));
-    goto unwind_and_return;
-  }
-
   // Update the invocation counter
   if ((UseCompiler || CountCompiledCalls) && !method->is_synchronized()) {
     InvocationCounter *counter = method->invocation_counter();
@@ -264,9 +238,10 @@
   assert(function != NULL, "should be set if signature handler is");
 
   // Build the argument list
-  if (handler->argument_count() * 2 > stack->available_words()) {
-    Unimplemented();
-  }
+  stack->overflow_check(handler->argument_count() * 2, THREAD);
+  if (HAS_PENDING_EXCEPTION)
+    goto unlock_unwind_and_return;
+
   void **arguments;
   void *mirror; {
     arguments =
@@ -503,9 +478,7 @@
   switch (entry->flag_state()) {
   case ltos:
   case dtos:
-    if (stack->available_words() < 1) {
-      Unimplemented();
-    }
+    stack->overflow_check(1, CHECK);
     stack->alloc(wordSize);
     break;
   }
@@ -601,39 +574,30 @@
   stack->set_sp(stack->sp() + method->size_of_parameters());
 }
 
-bool CppInterpreter::stack_overflow_imminent(JavaThread *thread) {
-  // How is the ABI stack?
-  address stack_top = thread->stack_base() - thread->stack_size();
-  int free_stack = os::current_stack_pointer() - stack_top;
-  if (free_stack < StackShadowPages * os::vm_page_size()) {
-    return true;
-  }
+InterpreterFrame *InterpreterFrame::build(const methodOop method, TRAPS) {
+  JavaThread *thread = (JavaThread *) THREAD;
+  ZeroStack *stack = thread->zero_stack();
+
+  // Calculate the size of the frame we'll build, including
+  // any adjustments to the caller's frame that we'll make.
+  int extra_locals  = 0;
+  int monitor_words = 0;
+  int stack_words   = 0;
 
-  // How is the Zero stack?
-  // Throwing a StackOverflowError involves a VM call, which means
-  // we need a frame on the stack.  We should be checking here to
-  // ensure that methods we call have enough room to install the
-  // largest possible frame, but that's more than twice the size
-  // of the entire Zero stack we get by default, so we just check
-  // we have *some* space instead...
-  free_stack = thread->zero_stack()->available_words() * wordSize;
-  if (free_stack < StackShadowPages * os::vm_page_size()) {
-    return true;
+  if (!method->is_native()) {
+    extra_locals = method->max_locals() - method->size_of_parameters();
+    stack_words  = method->max_stack();
   }
+  if (method->is_synchronized()) {
+    monitor_words = frame::interpreter_frame_monitor_size();
+  }
+  stack->overflow_check(
+    extra_locals + header_words + monitor_words + stack_words, CHECK_NULL);
 
-  return false;
-}
-
-InterpreterFrame *InterpreterFrame::build(ZeroStack*       stack,
-                                          const methodOop  method,
-                                          JavaThread*      thread) {
-  int monitor_words =
-    method->is_synchronized() ? frame::interpreter_frame_monitor_size() : 0;
-  int stack_words = method->is_native() ? 0 : method->max_stack();
-
-  if (header_words + monitor_words + stack_words > stack->available_words()) {
-    Unimplemented();
-  }
+  // Adjust the caller's stack frame to accomodate any additional
+  // local variables we have contiguously with our parameters.
+  for (int i = 0; i < extra_locals; i++)
+    stack->push(0);
 
   intptr_t *locals;
   if (method->is_native())
@@ -812,14 +776,13 @@
 
 // Deoptimization helpers
 
-InterpreterFrame *InterpreterFrame::build(ZeroStack* stack, int size) {
+InterpreterFrame *InterpreterFrame::build(int size, TRAPS) {
+  ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack();
+
   int size_in_words = size >> LogBytesPerWord;
   assert(size_in_words * wordSize == size, "unaligned");
   assert(size_in_words >= header_words, "too small");
-
-  if (size_in_words > stack->available_words()) {
-    Unimplemented();
-  }
+  stack->overflow_check(size_in_words, CHECK_NULL);
 
   stack->push(0); // next_frame, filled in later
   intptr_t *fp = stack->sp();
--- a/src/cpu/zero/vm/cppInterpreter_zero.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/cppInterpreter_zero.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -39,9 +39,5 @@
   static void main_loop(int recurse, TRAPS);
 
  private:
-  // Stack overflow checks
-  static bool stack_overflow_imminent(JavaThread *thread);
-
- private:
   // Fast result type determination
   static BasicType result_type_of(methodOop method);
--- a/src/cpu/zero/vm/entryFrame_zero.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/entryFrame_zero.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,6 +1,6 @@
 /*
  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
- * Copyright 2008 Red Hat, Inc.
+ * Copyright 2008, 2010 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -47,10 +47,10 @@
   };
 
  public:
-  static EntryFrame *build(ZeroStack*       stack,
-                           const intptr_t*  parameters,
+  static EntryFrame *build(const intptr_t*  parameters,
                            int              parameter_words,
-                           JavaCallWrapper* call_wrapper);
+                           JavaCallWrapper* call_wrapper,
+                           TRAPS);
  public:
   JavaCallWrapper *call_wrapper() const {
     return (JavaCallWrapper *) value_of_word(call_wrapper_off);
--- a/src/cpu/zero/vm/fakeStubFrame_zero.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/fakeStubFrame_zero.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,6 +1,6 @@
 /*
  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
- * Copyright 2008 Red Hat, Inc.
+ * Copyright 2008, 2010 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -42,7 +42,7 @@
   };
 
  public:
-  static FakeStubFrame *build(ZeroStack* stack);
+  static FakeStubFrame *build(TRAPS);
 
  public:
   void identify_word(int   frame_index,
--- a/src/cpu/zero/vm/globals_zero.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/globals_zero.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -35,6 +35,7 @@
 define_pd_global(bool,  UncommonNullCast,     true);
 
 define_pd_global(intx,  CodeEntryAlignment,   32);
+define_pd_global(intx,  OptoLoopAlignment,    16);
 define_pd_global(intx,  InlineFrequencyCount, 100);
 define_pd_global(intx,  PreInflateSpin,       10);
 
--- a/src/cpu/zero/vm/interpreterFrame_zero.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/interpreterFrame_zero.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,6 +1,6 @@
 /*
  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
- * Copyright 2008 Red Hat, Inc.
+ * Copyright 2008, 2010 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -55,10 +55,8 @@
   };
 
  public:
-  static InterpreterFrame *build(ZeroStack*      stack,
-                                 const methodOop method,
-                                 JavaThread*     thread);
-  static InterpreterFrame *build(ZeroStack* stack, int size);
+  static InterpreterFrame *build(const methodOop method, TRAPS);
+  static InterpreterFrame *build(int size, TRAPS);
 
  public:
   interpreterState interpreter_state() const {
--- a/src/cpu/zero/vm/interpreterRT_zero.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/interpreterRT_zero.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,6 +1,6 @@
 /*
  * Copyright 2003-2005 Sun Microsystems, Inc.  All Rights Reserved.
- * Copyright 2007, 2008 Red Hat, Inc.
+ * Copyright 2007, 2008, 2010 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -140,9 +140,8 @@
   int required_words =
     (align_size_up(sizeof(ffi_cif), wordSize) >> LogBytesPerWord) +
     (method->is_static() ? 2 : 1) + method->size_of_parameters() + 1;
-  if (required_words > stack->available_words()) {
-    Unimplemented();
-  }
+
+  stack->overflow_check(required_words, CHECK_NULL);
 
   intptr_t *buf = (intptr_t *) stack->alloc(required_words * wordSize);
   SlowSignatureHandlerGenerator sshg(methodHandle(thread, method), buf);
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cpu/zero/vm/stack_zero.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2010 Red Hat, Inc.
+ * 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.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_stack_zero.cpp.incl"
+
+void ZeroStack::handle_overflow(TRAPS) {
+  JavaThread *thread = (JavaThread *) THREAD;
+
+  // Set up the frame anchor if it isn't already
+  bool has_last_Java_frame = thread->has_last_Java_frame();
+  if (!has_last_Java_frame) {
+    ZeroFrame *frame = thread->top_zero_frame();
+    while (frame) {
+      if (frame->is_shark_frame())
+        break;
+
+      if (frame->is_interpreter_frame()) {
+        interpreterState istate =
+          frame->as_interpreter_frame()->interpreter_state();
+        if (istate->self_link() == istate)
+          break;
+      }
+
+      frame = frame->next();
+    }
+
+    if (frame == NULL)
+      fatal("unrecoverable stack overflow");
+
+    thread->set_last_Java_frame(frame);
+  }
+
+  // Throw the exception
+  switch (thread->thread_state()) {
+  case _thread_in_Java:
+    InterpreterRuntime::throw_StackOverflowError(thread);
+    break;
+
+  case _thread_in_vm:
+    Exceptions::throw_stack_overflow_exception(thread, __FILE__, __LINE__);
+    break;
+
+  default:
+    ShouldNotReachHere();
+  }
+
+  // Reset the frame anchor if necessary
+  if (!has_last_Java_frame)
+    thread->reset_last_Java_frame();
+}
--- a/src/cpu/zero/vm/stack_zero.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/stack_zero.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,6 +1,6 @@
 /*
  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
- * Copyright 2008, 2009 Red Hat, Inc.
+ * Copyright 2008, 2009, 2010 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -29,9 +29,14 @@
   intptr_t *_top;  // the word past the end of the stack
   intptr_t *_sp;   // the top word on the stack
 
+ private:
+  int _shadow_pages_size; // how much ABI stack must we keep free?
+
  public:
   ZeroStack()
-    : _base(NULL), _top(NULL), _sp(NULL) {}
+    : _base(NULL), _top(NULL), _sp(NULL) {
+    _shadow_pages_size = StackShadowPages * os::vm_page_size();
+  }
 
   bool needs_setup() const {
     return _base == NULL;
@@ -81,6 +86,14 @@
     return _sp -= count;
   }
 
+  int shadow_pages_size() const {
+    return _shadow_pages_size;
+  }
+
+ public:
+  void overflow_check(int required_words, TRAPS);
+  static void handle_overflow(TRAPS);
+
  public:
   static ByteSize base_offset() {
     return byte_offset_of(ZeroStack, _base);
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cpu/zero/vm/stack_zero.inline.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2010 Red Hat, Inc.
+ * 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.
+ *
+ */
+
+// This function should match SharkStack::CreateStackOverflowCheck
+inline void ZeroStack::overflow_check(int required_words, TRAPS) {
+  JavaThread *thread = (JavaThread *) THREAD;
+
+  // Check the Zero stack
+  if (required_words > available_words()) {
+    handle_overflow(THREAD);
+    return;
+  }
+
+  // Check the ABI stack
+  address stack_top = thread->stack_base() - thread->stack_size();
+  int free_stack = ((address) &stack_top) - stack_top;
+  if (free_stack < shadow_pages_size()) {
+    handle_overflow(THREAD);
+    return;
+  }
+}
--- a/src/cpu/zero/vm/stubGenerator_zero.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/cpu/zero/vm/stubGenerator_zero.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,6 +1,6 @@
 /*
  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
- * Copyright 2007, 2008 Red Hat, Inc.
+ * Copyright 2007, 2008, 2010 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -60,38 +60,43 @@
     }
 
     // Allocate and initialize our frame
-    thread->push_zero_frame(
-      EntryFrame::build(stack, parameters, parameter_words, call_wrapper));
+    EntryFrame *frame =
+      EntryFrame::build(parameters, parameter_words, call_wrapper, THREAD);
 
-    // Make the call
-    Interpreter::invoke_method(method, entry_point, THREAD);
-
-    // Store result depending on type
     if (!HAS_PENDING_EXCEPTION) {
-      switch (result_type) {
-      case T_INT:
-        *(jint *) result = *(jint *) stack->sp();
-        break;
-      case T_LONG:
-        *(jlong *) result = *(jlong *) stack->sp();
-        break;
-      case T_FLOAT:
-        *(jfloat *) result = *(jfloat *) stack->sp();
-        break;
-      case T_DOUBLE:
-        *(jdouble *) result = *(jdouble *) stack->sp();
-        break;
-      case T_OBJECT:
-        *(oop *) result = *(oop *) stack->sp();
-        break;
-      default:
-        ShouldNotReachHere();
+      // Push the frame
+      thread->push_zero_frame(frame);
+
+      // Make the call
+      Interpreter::invoke_method(method, entry_point, THREAD);
+
+      // Store the result
+      if (!HAS_PENDING_EXCEPTION) {
+        switch (result_type) {
+        case T_INT:
+          *(jint *) result = *(jint *) stack->sp();
+          break;
+        case T_LONG:
+          *(jlong *) result = *(jlong *) stack->sp();
+          break;
+        case T_FLOAT:
+          *(jfloat *) result = *(jfloat *) stack->sp();
+          break;
+        case T_DOUBLE:
+          *(jdouble *) result = *(jdouble *) stack->sp();
+          break;
+        case T_OBJECT:
+          *(oop *) result = *(oop *) stack->sp();
+          break;
+        default:
+          ShouldNotReachHere();
+        }
       }
+
+      // Unwind the frame
+      thread->pop_zero_frame();
     }
 
-    // Unwind our frame
-    thread->pop_zero_frame();
-
     // Tear down the stack if necessary
     if (stack_needs_teardown)
       stack->teardown();
@@ -226,13 +231,13 @@
   StubGenerator g(code, all);
 }
 
-EntryFrame *EntryFrame::build(ZeroStack*       stack,
-                              const intptr_t*  parameters,
+EntryFrame *EntryFrame::build(const intptr_t*  parameters,
                               int              parameter_words,
-                              JavaCallWrapper* call_wrapper) {
-  if (header_words + parameter_words > stack->available_words()) {
-    Unimplemented();
-  }
+                              JavaCallWrapper* call_wrapper,
+                              TRAPS) {
+
+  ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack();
+  stack->overflow_check(header_words + parameter_words, CHECK_NULL);
 
   stack->push(0); // next_frame, filled in later
   intptr_t *fp = stack->sp();
--- a/src/os_cpu/linux_zero/vm/thread_linux_zero.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/os_cpu/linux_zero/vm/thread_linux_zero.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,6 +1,6 @@
 /*
  * Copyright 2000-2007 Sun Microsystems, Inc.  All Rights Reserved.
- * Copyright 2007, 2008, 2009 Red Hat, Inc.
+ * Copyright 2007, 2008, 2009, 2010 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -68,12 +68,13 @@
 
  public:
   void set_last_Java_frame() {
-    JavaFrameAnchor *jfa = frame_anchor();
-    jfa->set_last_Java_sp((intptr_t *) top_zero_frame());
+    set_last_Java_frame(top_zero_frame());
   }
   void reset_last_Java_frame() {
-    JavaFrameAnchor *jfa = frame_anchor();
-    jfa->set_last_Java_sp(NULL);
+    set_last_Java_frame(NULL);
+  }
+  void set_last_Java_frame(ZeroFrame* frame) {
+    frame_anchor()->set_last_Java_sp((intptr_t *) frame);
   }
 
  private:
--- a/src/share/vm/asm/codeBuffer.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/asm/codeBuffer.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -40,6 +40,7 @@
                  Exceptions,     // Offset where exception handler lives
                  Deopt,          // Offset where deopt handler lives
                  DeoptMH,        // Offset where MethodHandle deopt handler lives
+                 UnwindHandler,  // Offset to default unwind handler
                  max_Entries };
 
   // special value to note codeBlobs where profile (forte) stack walking is
@@ -59,6 +60,7 @@
     _values[Exceptions    ] = -1;
     _values[Deopt         ] = -1;
     _values[DeoptMH       ] = -1;
+    _values[UnwindHandler ] = -1;
   }
 
   int value(Entries e) { return _values[e]; }
--- a/src/share/vm/c1/c1_Compilation.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/c1/c1_Compilation.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -229,6 +229,10 @@
   code_offsets->set_value(CodeOffsets::DeoptMH, assembler->emit_deopt_handler());
   CHECK_BAILOUT();
 
+  // Emit the handler to remove the activation from the stack and
+  // dispatch to the caller.
+  offsets()->set_value(CodeOffsets::UnwindHandler, assembler->emit_unwind_handler());
+
   // done
   masm()->flush();
 }
--- a/src/share/vm/c1/c1_GraphBuilder.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/c1/c1_GraphBuilder.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -829,12 +829,8 @@
     // should be left alone since there can be only one and all code
     // should dispatch to the same one.
     XHandler* h = handlers->handler_at(i);
-    if (h->handler_bci() != SynchronizationEntryBCI) {
-      h->set_entry_block(block_at(h->handler_bci()));
-    } else {
-      assert(h->entry_block()->is_set(BlockBegin::default_exception_handler_flag),
-             "should be the synthetic unlock block");
-    }
+    assert(h->handler_bci() != SynchronizationEntryBCI, "must be real");
+    h->set_entry_block(block_at(h->handler_bci()));
   }
   _jsr_xhandlers = handlers;
 }
@@ -2867,19 +2863,6 @@
   _initial_state = state_at_entry();
   start_block->merge(_initial_state);
 
-  // setup an exception handler to do the unlocking and/or
-  // notification and unwind the frame.
-  BlockBegin* sync_handler = new BlockBegin(-1);
-  sync_handler->set(BlockBegin::exception_entry_flag);
-  sync_handler->set(BlockBegin::is_on_work_list_flag);
-  sync_handler->set(BlockBegin::default_exception_handler_flag);
-
-  ciExceptionHandler* desc = new ciExceptionHandler(method()->holder(), 0, method()->code_size(), -1, 0);
-  XHandler* h = new XHandler(desc);
-  h->set_entry_block(sync_handler);
-  scope_data()->xhandlers()->append(h);
-  scope_data()->set_has_handler();
-
   // complete graph
   _vmap        = new ValueMap();
   scope->compute_lock_stack_size();
@@ -2930,19 +2913,6 @@
   }
   CHECK_BAILOUT();
 
-  if (sync_handler && sync_handler->state() != NULL) {
-    Value lock = NULL;
-    if (method()->is_synchronized()) {
-      lock = method()->is_static() ? new Constant(new InstanceConstant(method()->holder()->java_mirror())) :
-                                     _initial_state->local_at(0);
-
-      sync_handler->state()->unlock();
-      sync_handler->state()->lock(scope, lock);
-
-    }
-    fill_sync_handler(lock, sync_handler, true);
-  }
-
   _start = setup_start_block(osr_bci, start_block, _osr_entry, _initial_state);
 
   eliminate_redundant_phis(_start);
--- a/src/share/vm/c1/c1_Instruction.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/c1/c1_Instruction.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1628,11 +1628,10 @@
     backward_branch_target_flag   = 1 << 4,
     is_on_work_list_flag          = 1 << 5,
     was_visited_flag              = 1 << 6,
-    default_exception_handler_flag = 1 << 8, // identify block which represents the default exception handler
-    parser_loop_header_flag       = 1 << 9,  // set by parser to identify blocks where phi functions can not be created on demand
-    critical_edge_split_flag      = 1 << 10, // set for all blocks that are introduced when critical edges are split
-    linear_scan_loop_header_flag  = 1 << 11, // set during loop-detection for LinearScan
-    linear_scan_loop_end_flag     = 1 << 12  // set during loop-detection for LinearScan
+    parser_loop_header_flag       = 1 << 7,  // set by parser to identify blocks where phi functions can not be created on demand
+    critical_edge_split_flag      = 1 << 8, // set for all blocks that are introduced when critical edges are split
+    linear_scan_loop_header_flag  = 1 << 9, // set during loop-detection for LinearScan
+    linear_scan_loop_end_flag     = 1 << 10  // set during loop-detection for LinearScan
   };
 
   void set(Flag f)                               { _flags |= f; }
--- a/src/share/vm/c1/c1_LIR.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/c1/c1_LIR.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -626,8 +626,7 @@
       break;
     }
 
-    case lir_throw:
-    case lir_unwind: {
+    case lir_throw: {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
 
@@ -639,6 +638,17 @@
       break;
     }
 
+    case lir_unwind: {
+      assert(op->as_Op1() != NULL, "must be");
+      LIR_Op1* op1 = (LIR_Op1*)op;
+
+      assert(op1->_info == NULL, "no info");
+      assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
+      assert(op1->_result->is_illegal(), "no result");
+
+      break;
+    }
+
 
     case lir_tan:
     case lir_sin:
--- a/src/share/vm/c1/c1_LIR.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/c1/c1_LIR.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -801,6 +801,7 @@
       , lir_monaddr
       , lir_roundfp
       , lir_safepoint
+      , lir_unwind
   , end_op1
   , begin_op2
       , lir_cmp
@@ -830,7 +831,6 @@
       , lir_ushr
       , lir_alloc_array
       , lir_throw
-      , lir_unwind
       , lir_compare_to
   , end_op2
   , begin_op3
@@ -1827,8 +1827,12 @@
   void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor,  left, right, dst)); }
 
   void null_check(LIR_Opr opr, CodeEmitInfo* info)         { append(new LIR_Op1(lir_null_check, opr, info)); }
-  void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); }
-  void unwind_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { append(new LIR_Op2(lir_unwind, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); }
+  void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
+    append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
+  }
+  void unwind_exception(LIR_Opr exceptionOop) {
+    append(new LIR_Op1(lir_unwind, exceptionOop));
+  }
 
   void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) {
     append(new LIR_Op2(lir_compare_to,  left, right, dst));
--- a/src/share/vm/c1/c1_LIRAssembler.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/c1/c1_LIRAssembler.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -552,6 +552,10 @@
       monitor_address(op->in_opr()->as_constant_ptr()->as_jint(), op->result_opr());
       break;
 
+    case lir_unwind:
+      unwind_op(op->in_opr());
+      break;
+
     default:
       Unimplemented();
       break;
@@ -707,8 +711,7 @@
       break;
 
     case lir_throw:
-    case lir_unwind:
-      throw_op(op->in_opr1(), op->in_opr2(), op->info(), op->code() == lir_unwind);
+      throw_op(op->in_opr1(), op->in_opr2(), op->info());
       break;
 
     default:
--- a/src/share/vm/c1/c1_LIRAssembler.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/c1/c1_LIRAssembler.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -39,6 +39,8 @@
   Instruction*       _pending_non_safepoint;
   int                _pending_non_safepoint_offset;
 
+  Label              _unwind_handler_entry;
+
 #ifdef ASSERT
   BlockList          _branch_target_blocks;
   void check_no_unbound_labels();
@@ -134,6 +136,7 @@
 
   // code patterns
   int  emit_exception_handler();
+  int  emit_unwind_handler();
   void emit_exception_entries(ExceptionInfoList* info_list);
   int  emit_deopt_handler();
 
@@ -217,7 +220,8 @@
 
   void build_frame();
 
-  void throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info, bool unwind);
+  void throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info);
+  void unwind_op(LIR_Opr exceptionOop);
   void monitor_address(int monitor_ix, LIR_Opr dst);
 
   void align_backward_branch_target();
--- a/src/share/vm/c1/c1_LIRGenerator.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/c1/c1_LIRGenerator.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1765,35 +1765,17 @@
     __ null_check(exception_opr, new CodeEmitInfo(info, true));
   }
 
-  if (compilation()->env()->jvmti_can_post_on_exceptions() &&
-      !block()->is_set(BlockBegin::default_exception_handler_flag)) {
+  if (compilation()->env()->jvmti_can_post_on_exceptions()) {
     // we need to go through the exception lookup path to get JVMTI
     // notification done
     unwind = false;
   }
 
-  assert(!block()->is_set(BlockBegin::default_exception_handler_flag) || unwind,
-         "should be no more handlers to dispatch to");
-
-  if (compilation()->env()->dtrace_method_probes() &&
-      block()->is_set(BlockBegin::default_exception_handler_flag)) {
-    // notify that this frame is unwinding
-    BasicTypeList signature;
-    signature.append(T_INT);    // thread
-    signature.append(T_OBJECT); // methodOop
-    LIR_OprList* args = new LIR_OprList();
-    args->append(getThreadPointer());
-    LIR_Opr meth = new_register(T_OBJECT);
-    __ oop2reg(method()->constant_encoding(), meth);
-    args->append(meth);
-    call_runtime(&signature, args, CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), voidType, NULL);
-  }
-
   // move exception oop into fixed register
   __ move(exception_opr, exceptionOopOpr());
 
   if (unwind) {
-    __ unwind_exception(LIR_OprFact::illegalOpr, exceptionOopOpr(), info);
+    __ unwind_exception(exceptionOopOpr());
   } else {
     __ throw_exception(exceptionPcOpr(), exceptionOopOpr(), info);
   }
--- a/src/share/vm/code/nmethod.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/code/nmethod.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -685,6 +685,7 @@
     _exception_offset        = 0;
     _deoptimize_offset       = 0;
     _deoptimize_mh_offset    = 0;
+    _unwind_handler_offset   = -1;
     _trap_offset             = offsets->value(CodeOffsets::Dtrace_trap);
     _orig_pc_offset          = 0;
     _stub_offset             = data_offset();
@@ -798,6 +799,11 @@
     _exception_offset        = _stub_offset + offsets->value(CodeOffsets::Exceptions);
     _deoptimize_offset       = _stub_offset + offsets->value(CodeOffsets::Deopt);
     _deoptimize_mh_offset    = _stub_offset + offsets->value(CodeOffsets::DeoptMH);
+    if (offsets->value(CodeOffsets::UnwindHandler) != -1) {
+      _unwind_handler_offset   = instructions_offset() + offsets->value(CodeOffsets::UnwindHandler);
+    } else {
+      _unwind_handler_offset   = -1;
+    }
     _consts_offset           = instructions_offset() + code_buffer->total_offset_of(code_buffer->consts()->start());
     _scopes_data_offset      = data_offset();
     _scopes_pcs_offset       = _scopes_data_offset   + round_to(debug_info->data_size         (), oopSize);
--- a/src/share/vm/code/nmethod.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/code/nmethod.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -154,6 +154,9 @@
   // All deoptee's at a MethodHandle call site will resume execution
   // at this location described by this offset.
   int _deoptimize_mh_offset;
+  // Offset of the unwind handler if it exists
+  int _unwind_handler_offset;
+
 #ifdef HAVE_DTRACE_H
   int _trap_offset;
 #endif // def HAVE_DTRACE_H
@@ -341,6 +344,7 @@
   address exception_begin       () const          { return           header_begin() + _exception_offset     ; }
   address deopt_handler_begin   () const          { return           header_begin() + _deoptimize_offset    ; }
   address deopt_mh_handler_begin() const          { return           header_begin() + _deoptimize_mh_offset ; }
+  address unwind_handler_begin  () const          { return _unwind_handler_offset != -1 ? (header_begin() + _unwind_handler_offset) : NULL; }
   address stub_begin            () const          { return           header_begin() + _stub_offset          ; }
   address stub_end              () const          { return           header_begin() + _consts_offset        ; }
   address consts_begin          () const          { return           header_begin() + _consts_offset        ; }
--- a/src/share/vm/includeDB_zero	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/includeDB_zero	Wed Apr 21 01:13:15 2010 -0700
@@ -1,6 +1,6 @@
 //
 // Copyright 2001-2009 Sun Microsystems, Inc.  All Rights Reserved.
-// Copyright 2009 Red Hat, Inc.
+// Copyright 2009, 2010 Red Hat, Inc.
 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 //
 // This code is free software; you can redistribute it and/or modify it
@@ -25,6 +25,8 @@
 
 // NOTE: DO NOT CHANGE THIS COPYRIGHT TO NEW STYLE - IT WILL BREAK makeDeps!
 
+cppInterpreter_<arch>.cpp               stack_<arch>.inline.hpp
+
 entryFrame_<arch>.hpp                   javaCalls.hpp
 entryFrame_<arch>.hpp                   stack_<arch>.hpp
 
@@ -47,9 +49,19 @@
 interpreterFrame_<arch>.hpp             stack_<arch>.hpp
 interpreterFrame_<arch>.hpp             thread.hpp
 
+interpreterRT_<arch>.cpp                stack_<arch>.inline.hpp
+
 sharkFrame_<arch>.hpp                   methodOop.hpp
 sharkFrame_<arch>.hpp                   stack_<arch>.hpp
 
 stack_<arch>.hpp                        sizes.hpp
 
+stack_<arch>.inline.hpp                 stack_<arch>.hpp
+stack_<arch>.inline.hpp                 thread.hpp
+
+stack_<arch>.cpp                        interpreterRuntime.hpp
+stack_<arch>.cpp                        stack_<arch>.hpp
+
+stubGenerator_<arch>.cpp                stack_<arch>.inline.hpp
+
 thread.hpp                              stack_<arch>.hpp
--- a/src/share/vm/opto/parse1.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/opto/parse1.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -280,7 +280,13 @@
       continue;
     }
     // Construct code to access the appropriate local.
-    Node *value = fetch_interpreter_state(index, type->basic_type(), locals_addr, osr_buf);
+    BasicType bt = type->basic_type();
+    if (type == TypePtr::NULL_PTR) {
+      // Ptr types are mixed together with T_ADDRESS but NULL is
+      // really for T_OBJECT types so correct it.
+      bt = T_OBJECT;
+    }
+    Node *value = fetch_interpreter_state(index, bt, locals_addr, osr_buf);
     set_local(index, value);
   }
 
--- a/src/share/vm/runtime/sharedRuntime.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/runtime/sharedRuntime.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -473,6 +473,13 @@
     t = table.entry_for(catch_pco, -1, 0);
   }
 
+#ifdef COMPILER1
+  if (t == NULL && nm->is_compiled_by_c1()) {
+    assert(nm->unwind_handler_begin() != NULL, "");
+    return nm->unwind_handler_begin();
+  }
+#endif
+
   if (t == NULL) {
     tty->print_cr("MISSING EXCEPTION HANDLER for pc " INTPTR_FORMAT " and handler bci %d", ret_pc, handler_bci);
     tty->print_cr("   Exception:");
--- a/src/share/vm/utilities/vmError.cpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/utilities/vmError.cpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2003-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2003-2010 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
@@ -212,6 +212,51 @@
   return buf;
 }
 
+void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
+                                char* buf, int buflen, bool verbose) {
+#ifdef ZERO
+  if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
+    // StackFrameStream uses the frame anchor, which may not have
+    // been set up.  This can be done at any time in Zero, however,
+    // so if it hasn't been set up then we just set it up now and
+    // clear it again when we're done.
+    bool has_last_Java_frame = jt->has_last_Java_frame();
+    if (!has_last_Java_frame)
+      jt->set_last_Java_frame();
+    st->print("Java frames:");
+
+    // If the top frame is a Shark frame and the frame anchor isn't
+    // set up then it's possible that the information in the frame
+    // is garbage: it could be from a previous decache, or it could
+    // simply have never been written.  So we print a warning...
+    StackFrameStream sfs(jt);
+    if (!has_last_Java_frame && !sfs.is_done()) {
+      if (sfs.current()->zeroframe()->is_shark_frame()) {
+        st->print(" (TOP FRAME MAY BE JUNK)");
+      }
+    }
+    st->cr();
+
+    // Print the frames
+    for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
+      sfs.current()->zero_print_on_error(i, st, buf, buflen);
+      st->cr();
+    }
+
+    // Reset the frame anchor if necessary
+    if (!has_last_Java_frame)
+      jt->reset_last_Java_frame();
+  }
+#else
+  if (jt->has_last_Java_frame()) {
+    st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
+    for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
+      sfs.current()->print_on_error(st, buf, buflen, verbose);
+      st->cr();
+    }
+  }
+#endif // ZERO
+}
 
 // This is the main function to report a fatal error. Only one thread can
 // call this function, so we don't need to worry about MT-safety. But it's
@@ -457,49 +502,7 @@
   STEP(130, "(printing Java stack)" )
 
      if (_verbose && _thread && _thread->is_Java_thread()) {
-       JavaThread* jt = (JavaThread*)_thread;
-#ifdef ZERO
-       if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
-         // StackFrameStream uses the frame anchor, which may not have
-         // been set up.  This can be done at any time in Zero, however,
-         // so if it hasn't been set up then we just set it up now and
-         // clear it again when we're done.
-         bool has_last_Java_frame = jt->has_last_Java_frame();
-         if (!has_last_Java_frame)
-           jt->set_last_Java_frame();
-         st->print("Java frames:");
-
-         // If the top frame is a Shark frame and the frame anchor isn't
-         // set up then it's possible that the information in the frame
-         // is garbage: it could be from a previous decache, or it could
-         // simply have never been written.  So we print a warning...
-         StackFrameStream sfs(jt);
-         if (!has_last_Java_frame && !sfs.is_done()) {
-           if (sfs.current()->zeroframe()->is_shark_frame()) {
-             st->print(" (TOP FRAME MAY BE JUNK)");
-           }
-         }
-         st->cr();
-
-         // Print the frames
-         for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
-           sfs.current()->zero_print_on_error(i, st, buf, sizeof(buf));
-           st->cr();
-         }
-
-         // Reset the frame anchor if necessary
-         if (!has_last_Java_frame)
-           jt->reset_last_Java_frame();
-       }
-#else
-       if (jt->has_last_Java_frame()) {
-         st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
-         for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
-           sfs.current()->print_on_error(st, buf, sizeof(buf));
-           st->cr();
-         }
-       }
-#endif // ZERO
+       print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
      }
 
   STEP(135, "(printing target Java thread stack)" )
@@ -509,13 +512,7 @@
        JavaThread*  jt = ((NamedThread *)_thread)->processed_thread();
        if (jt != NULL) {
          st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
-         if (jt->has_last_Java_frame()) {
-           st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
-           for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
-             sfs.current()->print_on_error(st, buf, sizeof(buf), true);
-             st->cr();
-           }
-         }
+         print_stack_trace(st, jt, buf, sizeof(buf), true);
        }
      }
 
--- a/src/share/vm/utilities/vmError.hpp	Tue Apr 20 21:38:23 2010 -0700
+++ b/src/share/vm/utilities/vmError.hpp	Wed Apr 21 01:13:15 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2003-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2003-2010 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
@@ -70,6 +70,10 @@
   // generate an error report
   void report(outputStream* st);
 
+  // generate a stack trace
+  static void print_stack_trace(outputStream* st, JavaThread* jt,
+                                char* buf, int buflen, bool verbose = false);
+
   // accessor
   const char* message()         { return _message; }