--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/linux/sparc/LinuxSPARCCFrame.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2006 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
+ * 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.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.linux.sparc;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.sparc.*;
+import sun.jvm.hotspot.debugger.linux.*;
+import sun.jvm.hotspot.debugger.cdbg.*;
+import sun.jvm.hotspot.debugger.cdbg.basic.*;
+
+final public class LinuxSPARCCFrame extends BasicCFrame {
+   // package/class internals only
+
+   public LinuxSPARCCFrame(LinuxDebugger dbg, Address sp, Address pc, int address_size) {
+      super(dbg.getCDebugger());
+      this.sp = sp;
+      this.pc = pc;
+      this.dbg = dbg;
+      this.address_size=address_size;
+      if (address_size==8) SPARC_STACK_BIAS = 0x7ff;
+      else SPARC_STACK_BIAS = 0x0;
+   }
+
+   // override base class impl to avoid ELF parsing
+   public ClosestSymbol closestSymbolToPC() {
+      // try native lookup in debugger.
+      return dbg.lookup(dbg.getAddressValue(pc()));
+   }
+
+   public Address pc() {
+      return     pc;
+   }
+
+   public Address localVariableBase() {
+      return sp;
+   }
+
+   public CFrame sender() {
+      if (sp == null) {
+        return null;
+      }
+
+      Address nextSP = sp.getAddressAt( SPARCThreadContext.R_SP * address_size + SPARC_STACK_BIAS);
+      if (nextSP == null) {
+        return null;
+      }
+      Address nextPC  = sp.getAddressAt(SPARCThreadContext.R_O7 * address_size + SPARC_STACK_BIAS);
+      if (nextPC == null) {
+        return null;
+      }
+      return new LinuxSPARCCFrame(dbg, nextSP, nextPC,address_size);
+   }
+
+   public static int SPARC_STACK_BIAS;
+   private static int address_size;
+   private Address pc;
+   private Address sp;
+   private LinuxDebugger dbg;
+}