Makefile.am (libgcj_la_SOURCES): Remove name-finder.cc.

        * Makefile.am (libgcj_la_SOURCES): Remove name-finder.cc.
        (core_java_source_files): Add VMThrowable.java and NameFinder.java
        (nat_source_files): Remove natThrowable.cc, add natVMThrowable.cc
        and natNameFinder.cc.
        * Makefile.in: Regenerate.
        * prims.cc: Use trace_enabled from VMThrowable.
        * name-finder.cc: Removed.
        * gcj/javaprims.h: Add class VMThrowable.
        * gnu/gcj/runtime/NameFinder.java: New file.
        * gnu/gcj/runtime/natNameFinder.cc: Likewise.
        * include/name-finder.h: Removed.
        * java/lang/Throwable.java (printStackTrace (PrintStream)): Use new
        method stackTraceString().
        (printStackTrace (PrintWriter)): Likewise.
        (stackTraceString): Complete rewrite of old printStackTrace using
        StringBuffer.
        (stackTraceStringBuffer): New helper method for stackTraceString().
        (fillInStackTrace): Delegate to VMTrowable.
        (getStackTrace): Likewise.
        (getStackTrace0): Removed.
        (trace_enabled, stackTraceBytes): Moved to new VMThrowable.java.
        (setStackTrace): Copy given array.
        * java/lang/natThrowable.cc: Removed (replaced by natVMThrowable).
        * java/lang/VMThrowable.java: New class.
        * java/lang/natVMThrowable.cc: New file.

From-SVN: r56556

1 files changed, 97 insertions, 0 deletions

diff --git a/libjava/java/lang/VMThrowable.java b/libjava/java/lang/VMThrowable.java
new file mode 100644
index 0000000..0a2c922
--- /dev/null
+++ b/libjava/java/lang/VMThrowable.java
@@ -0,0 +1,97 @@
+/* java.lang.VMThrowable -- VM support methods for Throwable.
+   Copyright (C) 1998, 1999, 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.lang;
+
+import gnu.gcj.runtime.NameFinder;
+
+/**
+ * VM dependant state and support methods Throwabele.
+ * It is deliberately package local and final and should only be accessed
+ * by the Throwable class.
+ * <p>
+ * This is the version used by libgcj (http://gcc.gnu.org/java/).
+ *
+ * @author Mark Wielaard (mark@klomp.org)
+ */
+final class VMThrowable
+{
+  private gnu.gcj.RawData stackTraceAddrs;
+  private int length;
+
+  /**
+   * Private contructor, create VMThrowables with fillInStackTrace();
+   */
+  private VMThrowable() { }
+
+  /**
+   * Fill in the stack trace with the current execution stack.
+   * Called by <code>Throwable.fillInStackTrace()</code> to get the state of
+   * the VM. Can return null when the VM does not support caputing the VM
+   * execution state.
+   *
+   * @return a new VMThrowable containing the current execution stack trace.
+   * @see Throwable#fillInStackTrace()
+   */
+  static native VMThrowable fillInStackTrace(Throwable t);
+
+  /**
+   * Returns an <code>StackTraceElement</code> array based on the execution
+   * state of the VM as captured by <code>fillInStackTrace</code>.
+   * Called by <code>Throwable.getStackTrace()</code>.
+   *
+   * @return a non-null but possible zero length array of StackTraceElement.
+   * @see Throwable#getStackTrace()
+   */
+  StackTraceElement[] getStackTrace(Throwable t)
+  {
+    StackTraceElement[] result;
+    if (stackTraceAddrs != null)
+      {
+	NameFinder nameFinder = new NameFinder();
+	result = nameFinder.lookup(t, stackTraceAddrs, length);
+	nameFinder.close();
+      }
+    else
+      result = new StackTraceElement[0];
+
+    return result;
+  }
+
+  // Setting this flag to false prevents fillInStackTrace() from running.
+  static boolean trace_enabled = true;
+}