Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/CFrame.java @ 2245:638119ce7cfd
7009309: JSR 292: compiler/6991596/Test6991596.java crashes on fastdebug JDK7/b122
Reviewed-by: kvn, never
author | twisti |
---|---|
date | Tue, 01 Feb 2011 03:38:44 -0800 |
parents | c18cbe5936b8 |
children | b87e5a681416 |
line wrap: on
line source
/* * Copyright (c) 2001, 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(); /** 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); }