Breakpoint.java: Make abstract.

* gnu/gcj/jvmti/Breakpoint.java: Make abstract.
        (method): Change from private to protected.
        (location): Likewise.
        (Breakpoint): Change argument list to take only integer type.
        Add default constructor.
        (initialize_native): Renamed to ...
        (_save_insn): ... this to make function more explicit.
        (execute): New method.
        * gnu/gcj/jvmti/Breakpoint.h: Regenerate.
        * gnu/gcj/jvmti/natBreakpoint.cc (initialize_native): Rename to...
        (_save_insn): ... this.
        (install): Save the original instruction.
        * gnu/gcj/jvmti/NormalBreakpoint.java: New file.
        * gnu/gcj/jvmti/NormalBreakpoint.h: New file.
        * gnu/gcj/jvmti/natNormalBreakpoint.cc: New file.
        * gnu/gcj/jvmti/BreakpointManager.java (newBreakpoint):
        Instantiate a NormalBreakpoint instead of Breakpoint.
        * interpret-run.cc (insn_breakpoint): Remove breakpoint actions
        and call Breakpoint.execute to do them.
        * classpath/lib/gnu/gcj/jvmti/Breakpoint.class: Regenerate.
        * classpath/lib/gnu/gcj/jvmti/BreakpointManager.class: Likewise.
        * classpath/lib/gnu/gcj/jvmti/NormalBreakpoint.class: New file.
        * sources.am: Regenerate.
        * Makefile.am (nat_source_files): Add natNormalBreakpoint.cc.
        * Makefile.in: Regenerated.

From-SVN: r125834

libjava/gnu/gcj/jvmti/Breakpoint.h

@@ -35,15 +35,18 @@ friend void (::_Jv_RewriteBreakpointInsn (jmethodID, jlocation, pc_t));
 
 public:
   Breakpoint(jlong, jlong);
+  Breakpoint();
 private:
-  void initialize_native();
+  void _save_insn();
 public:
   virtual void install();
   virtual void remove();
   virtual ::gnu::gcj::RawDataManaged * getInsn();
-private:
+  virtual void execute() = 0;
+public: // actually protected
   jlong __attribute__((aligned(__alignof__( ::java::lang::Object)))) method;
   jlong location;
+private:
   ::gnu::gcj::RawDataManaged * data;
 public:
   static ::java::lang::Class class$;

libjava/gnu/gcj/jvmti/Breakpoint.java

@@ -1,6 +1,6 @@
-// Breakpoint.java -  a breakpoint in the interpreter
+// Breakpoint.java -  a base class for interpreter breakpoints
 
-/* Copyright (C) 2006  Free Software Foundation
+/* Copyright (C) 2006, 2007  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -13,37 +13,48 @@ package gnu.gcj.jvmti;
 import gnu.gcj.RawDataManaged;
 
 /**
- * Class representing a Breakpoint.
+ * Base class representing a type of breakpoint in the interpreter.
+ * This class deals with saving insns and installing and
+ * uninstalling insns in the interpreter for all breakpoint classes.
  *
  * @author Keith Seitz (keiths@redhat.com)
  */
-public class Breakpoint
+public abstract class Breakpoint
 {
   // Location of this breakpoint
-  private long method;
-  private long location;
+  protected long method;
+  protected long location;
 
   // The original instruction that this breakpoint replaced
   private RawDataManaged data;
 
   /**
-   * Constructs a new Breakpoint. SetBreakpoint will verify the
-   * validity of the arguments.
+   * Constructs a new Breakpoint
    *
-   * @param method the method (a jmethodID)
-   * @param location the jlocation of the breakpoint (a jlocation)
+   * @param method the method in which to set the breakpoint
+   * @param location the location at which to set the breakpoint
    */
   public Breakpoint (long method, long location)
   {
     this.method = method;
     this.location = location;
-    initialize_native ();
   }
 
-  private native void initialize_native ();
+  public Breakpoint ()
+  {
+  }
 
+  private native void _save_insn ();
+
+  /**
+   * Installs the breakpoint into the interpreter
+   */
   public native void install ();
 
+  /**
+   * Removes the breakpoint from the interpreter, re-installing
+   * the original instruction.
+   */
   public native void remove ();
 
   /**
@@ -54,4 +65,9 @@ public class Breakpoint
   {
     return data;
   }
+
+  /**
+   * Execute the actions of this breakpoint
+   */
+  public abstract void execute ();
 }

libjava/gnu/gcj/jvmti/BreakpointManager.java

@@ -43,7 +43,7 @@ public class BreakpointManager
    */
   public static Breakpoint newBreakpoint (long method, long location)
   {
-    Breakpoint bp = new Breakpoint (method, location);
+    NormalBreakpoint bp = new NormalBreakpoint (method, location);
     Location loc = new Location (method, location);
     bp.install ();
     _instance._breakpoints.put (loc, bp);

libjava/gnu/gcj/jvmti/NormalBreakpoint.h

@@ -0,0 +1,33 @@
+
+// DO NOT EDIT THIS FILE - it is machine generated -*- c++ -*-
+
+#ifndef __gnu_gcj_jvmti_NormalBreakpoint__
+#define __gnu_gcj_jvmti_NormalBreakpoint__
+
+#pragma interface
+
+#include <gnu/gcj/jvmti/Breakpoint.h>
+extern "Java"
+{
+  namespace gnu
+  {
+    namespace gcj
+    {
+      namespace jvmti
+      {
+          class NormalBreakpoint;
+      }
+    }
+  }
+}
+
+class gnu::gcj::jvmti::NormalBreakpoint : public ::gnu::gcj::jvmti::Breakpoint
+{
+
+public:
+  NormalBreakpoint(jlong, jlong);
+  virtual void execute();
+  static ::java::lang::Class class$;
+};
+
+#endif // __gnu_gcj_jvmti_NormalBreakpoint__

libjava/gnu/gcj/jvmti/NormalBreakpoint.java

@@ -0,0 +1,29 @@
+// NormalBreakpoint.java -  a "normal" breakpoint in the interpreter
+
+/* Copyright (C) 2007  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+package gnu.gcj.jvmti;
+
+/**
+ * This class represents a "normal" breakpoint in the interpreter.
+ * When the interpreter hits this breakpoint type, it will send out
+ * a JVMTI breakpoint notification.
+ *
+ * @author Keith Seitz (keiths@redhat.com)
+ */
+public class NormalBreakpoint
+  extends Breakpoint
+{
+  public NormalBreakpoint (long method, long id)
+  {
+    super (method, id);
+  }
+
+  public native void execute ();
+}

libjava/gnu/gcj/jvmti/natBreakpoint.cc

@@ -32,7 +32,7 @@ get_interp_method (jlong method)
 }
 
 void
-gnu::gcj::jvmti::Breakpoint::initialize_native ()
+gnu::gcj::jvmti::Breakpoint::_save_insn ()
 {
   _Jv_InterpMethod *imeth = get_interp_method (method);
 
@@ -45,6 +45,7 @@ gnu::gcj::jvmti::Breakpoint::initialize_native ()
 void
 gnu::gcj::jvmti::Breakpoint::install ()
 {
+  _save_insn ();
   _Jv_InterpMethod *imeth = get_interp_method (method);
   imeth->install_break (location);
 }

libjava/gnu/gcj/jvmti/natNormalBreakpoint.cc

@@ -0,0 +1,31 @@
+// natNormalBreakpoint.cc - C++ side of NormalBreakpoint
+
+/* Copyright (C) 2007  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <gcj/cni.h>
+#include <java-interp.h>
+#include <jvmti.h>
+#include "jvmti-int.h"
+
+#include <gnu/gcj/jvmti/NormalBreakpoint.h>
+#include <java/lang/Thread.h>
+
+void
+gnu::gcj::jvmti::NormalBreakpoint::execute ()
+{
+  using namespace ::java::lang;
+
+  Thread *thread = Thread::currentThread ();
+  JNIEnv *jni_env = _Jv_GetCurrentJNIEnv ();
+      
+  JvAssert (JVMTI_REQUESTED_EVENT (Breakpoint));
+  _Jv_JVMTI_PostEvent (JVMTI_EVENT_BREAKPOINT, thread, jni_env,
+		       method, location);
+}