Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/win32/coff/DebugVC50SegDesc.java @ 3972:4f93f0d00802
7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc
author | tonyp |
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date | Tue, 20 Sep 2011 09:59:59 -0400 |
parents | c18cbe5936b8 |
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0 | 1 /* |
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2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. |
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5 * This code is free software; you can redistribute it and/or modify it | |
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12 * version 2 for more details (a copy is included in the LICENSE file that | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.debugger.win32.coff; | |
26 | |
27 /** Models a segment descriptor in {@link | |
28 sun.jvm.hotspot.debugger.win32.coff.DebugVC50SSSegMap}. */ | |
29 | |
30 public interface DebugVC50SegDesc { | |
31 /** Descriptor flags bit field. See {@link | |
32 sun.jvm.hotspot.debugger.win32.coff.DebugVC50SegDescEnums}. */ | |
33 public short getFlags(); | |
34 | |
35 /** The logical overlay number. */ | |
36 public short getOverlayNum(); | |
37 | |
38 /** The group index into the descriptor array. The group index must | |
39 either be 0 or cSegLog <= group < cSeg. */ | |
40 public short getGroup(); | |
41 | |
42 /** <p> This value has different meanings depending upon the values | |
43 of fAbs and fSel in the flags bit array and ovl: </p> | |
44 | |
45 <p> | |
46 <table> | |
47 <tr> <td> fAbs <td> fSel <td> ovl <td> Operation | |
48 <tr> <td> 0 <td> 0 <td> 0 <td> Frame is added to PSP + 0x10 if not a .com file | |
49 <tr> <td> 0 <td> 0 <td> 0 <td> Frame is added to PSP if it is a .com file | |
50 <tr> <td> 0 <td> 0 <td> != 0 <td> Frame is added to current overlay base | |
51 <tr> <td> 1 <td> 0 <td> x <td> Frame is absolute address | |
52 <tr> <td> 0 <td> 1 <td> x <td> Frame contains a selector | |
53 </table> | |
54 </p> | |
55 */ | |
56 public short getFrame(); | |
57 | |
58 /** The byte index of the segment or group name in the sstSegName | |
59 table. A value of 0xffff indicates there is no name. */ | |
60 public short getName(); | |
61 | |
62 /** The byte index of the class name in the sstSegName table. A | |
63 value of 0xffff indicates there is no name. */ | |
64 public short getClassName(); | |
65 | |
66 /** Byte offset of the logical segment within the specified physical | |
67 segment. If fGroup is set in flags, offset is the offset of the | |
68 group in the physical segment. Currently, all groups define | |
69 physical segments so offset will be zero for groups. */ | |
70 public int getOffset(); | |
71 | |
72 /** Byte count of the logical segment or group. */ | |
73 public int getSize(); | |
74 } |