| /* |
| * Copyright (c) 2001, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| package sun.jvm.hotspot.debugger.cdbg; |
| |
| import sun.jvm.hotspot.debugger.*; |
| |
| /** Models a "C" programming language frame on the stack -- really |
| just an arbitrary frame with hooks to access C and C++ debug |
| information if available. It is recommended that implementors of |
| this interface derive from BasicCFrame, which provides some of the |
| functionality. */ |
| |
| public interface CFrame { |
| /** Returns null when no more frames on stack */ |
| public CFrame sender(ThreadProxy th); |
| |
| /** Get the program counter of this frame */ |
| public Address pc(); |
| |
| /** Get the loadobject in which the PC lies. Returns null if the PC |
| is not contained in any of the loadobjects in the target |
| process. */ |
| public LoadObject loadObjectForPC(); |
| |
| /** If debug information is available, retrieves the block in which |
| the program counter lies. Returns null if there is no debug |
| information for the current program counter or if the PC could |
| not be located for other reasons. */ |
| public BlockSym blockForPC(); |
| |
| /** For the loadobject in which the PC lies, fetch the name of the |
| closest exported symbol and the distance of the PC to that |
| symbol. Returns null if the PC was not within any of the |
| loadobjects of the target process. FIXME: specify whether this |
| is mangled/demangled. */ |
| public ClosestSymbol closestSymbolToPC(); |
| |
| /** Gets the base pointer in this frame from which local variable |
| offsets in the debug info are based. Typically this is the |
| base-of-frame pointer (EBP on x86, FP/I6 on SPARC). */ |
| public Address localVariableBase(); |
| |
| /** Visit all local variables in this frame if debug information is |
| available. Automatically descends into compound types and arrays. */ |
| public void iterateLocals(ObjectVisitor v); |
| } |