java-interp.h (_Jv_Frame::depth): New function.

        * include/java-interp.h (_Jv_Frame::depth):
        New function.
        * jvmti.cc (_Jv_JVMTI_GetFrameCount): Use _Jv_Frame::depth.

From-SVN: r121709

libjava/ChangeLog

+2007-02-07  Keith Seitz  <keiths@redhat.com>
+
+	* include/java-interp.h (_Jv_Frame::depth):
+	New function.
+	* jvmti.cc (_Jv_JVMTI_GetFrameCount): Use _Jv_Frame::depth.
+
 2007-02-07  Kyle Galloway  <kgallowa@redhat.com>
 
     * jvmti.cc (CHECK_FOR_NATIVE_METHOD): New macro.

libjava/include/java-interp.h

 // java-interp.h - Header file for the bytecode interpreter.  -*- c++ -*-
 
-/* Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006  Free Software Foundation
+/* Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -357,6 +357,16 @@ public:
   {
     thread->frame = (gnu::gcj::RawData *) next;
   }
+
+  int depth ()
+  {
+    int depth = 0;
+    struct _Jv_Frame *f;
+    for (f = this; f != NULL; f = f->next)
+      ++depth;
+
+    return depth;
+  }
 };
 
 // An interpreted frame in the call stack

libjava/jvmti.cc

@@ -271,14 +271,7 @@ _Jv_JVMTI_GetFrameCount (MAYBE_UNUSED jvmtiEnv *env, jthread thread,
   THREAD_CHECK_IS_ALIVE (thr);
    
   _Jv_Frame *frame = reinterpret_cast<_Jv_Frame *> (thr->frame);
-  (*frame_count) = 0;
-  
-  while (frame != NULL)
-    {
-      (*frame_count)++;
-      frame = frame->next;
-    }
-  
+  (*frame_count) = frame->depth ();
   return JVMTI_ERROR_NONE;
 }