From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libjava/gnu/gcj/jvmti/BreakpointManager.java | 82 ++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 libjava/gnu/gcj/jvmti/BreakpointManager.java

(limited to 'libjava/gnu/gcj/jvmti/BreakpointManager.java')

diff --git a/libjava/gnu/gcj/jvmti/BreakpointManager.java b/libjava/gnu/gcj/jvmti/BreakpointManager.java
new file mode 100644
index 000000000..0eb9f3341
--- /dev/null
+++ b/libjava/gnu/gcj/jvmti/BreakpointManager.java
@@ -0,0 +1,82 @@
+// BreakpointManager.java - A convenience class for dealing with breakpoints
+
+/* Copyright (C) 2006, 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;
+
+import java.util.Hashtable;
+
+/**
+ * A class which manages breakpoints in the VM interpreter engine.
+ *
+ * BreakpointManager is a location manager that the interpreter
+ * uses to lookup the original instruction for any given installed
+ * breakpoint. JVMTI does not allow multiple breakpoints to be set
+ * at any given location.
+ *
+ * @author Keith Seitz (keiths@redhat.com)
+ */
+public class BreakpointManager
+{
+  private static BreakpointManager _instance = new BreakpointManager ();
+
+  // List of breakpoints indexed by Location
+  private Hashtable _breakpoints;
+
+  private BreakpointManager ()
+  {
+    _breakpoints = new Hashtable ();
+  }
+
+  /**
+   * Creates a new breakpoint. SetBreakpoint will verify the validity
+   * of the arguments.
+   *
+   * @param method  method in which to set breakpoint (a jmethodID)
+   * @param location index where the breakpoint is to be set (a jlocation)
+   */
+  public static Breakpoint newBreakpoint (long method, long location)
+  {
+    NormalBreakpoint bp = new NormalBreakpoint (method, location);
+    Location loc = new Location (method, location);
+    bp.install ();
+    _instance._breakpoints.put (loc, bp);
+    return bp;
+  }
+
+  /**
+   * Deletes the breakpoint at the given Location
+   *
+   * @param method method in which to clear breakpoint
+   * @param location index of breakpoint in method
+   */
+  public static void deleteBreakpoint (long method, long location)
+  {
+    Location loc = new Location (method, location);
+    Breakpoint bp = (Breakpoint) _instance._breakpoints.get (loc);
+    if (bp != null)
+      {
+	bp.remove ();
+	_instance._breakpoints.remove (loc);
+      }
+  }
+
+  /**
+   * Returns the breakpoint at the given location or null if none installed
+   * at location
+   *
+   * @param method the jmethodID of the breakpoint location
+   * @param location the index in the method
+   */
+  public static Breakpoint getBreakpoint (long method, long location)
+  {
+    Location loc = new Location (method, location);
+    return (Breakpoint) _instance._breakpoints.get (loc);
+  }
+}
-- 
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