Mercurial > hg > graal-compiler

comparison agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/CFrame.java @ 0:a61af66fc99e jdk7-b24

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
comparison
equal deleted inserted replaced
-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.debugger.cdbg;
26
27 import sun.jvm.hotspot.debugger.*;
28
29 /** Models a "C" programming language frame on the stack -- really
30 just an arbitrary frame with hooks to access C and C++ debug
31 information if available. It is recommended that implementors of
32 this interface derive from BasicCFrame, which provides some of the
33 functionality. */
34
35 public interface CFrame {
36 /** Returns null when no more frames on stack */
37 public CFrame sender();
38
39 /** Get the program counter of this frame */
40 public Address pc();
41
42 /** Get the loadobject in which the PC lies. Returns null if the PC
43 is not contained in any of the loadobjects in the target
44 process. */
45 public LoadObject loadObjectForPC();
46
47 /** If debug information is available, retrieves the block in which
48 the program counter lies. Returns null if there is no debug
49 information for the current program counter or if the PC could
50 not be located for other reasons. */
51 public BlockSym blockForPC();
52
53 /** For the loadobject in which the PC lies, fetch the name of the
54 closest exported symbol and the distance of the PC to that
55 symbol. Returns null if the PC was not within any of the
56 loadobjects of the target process. FIXME: specify whether this
57 is mangled/demangled. */
58 public ClosestSymbol closestSymbolToPC();
59
60 /** Gets the base pointer in this frame from which local variable
61 offsets in the debug info are based. Typically this is the
62 base-of-frame pointer (EBP on x86, FP/I6 on SPARC). */
63 public Address localVariableBase();
64
65 /** Visit all local variables in this frame if debug information is
66 available. Automatically descends into compound types and arrays. */
67 public void iterateLocals(ObjectVisitor v);
68 }