Mercurial > hg > graal-jvmci-8
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/x86/X86ThreadContext.java @ 3960:f08d439fab8c
7089790: integrate bsd-port changes
Reviewed-by: kvn, twisti, jrose
Contributed-by: Kurt Miller <kurt@intricatesoftware.com>, Greg Lewis <glewis@eyesbeyond.com>, Jung-uk Kim <jkim@freebsd.org>, Christos Zoulas <christos@zoulas.com>, Landon Fuller <landonf@plausible.coop>, The FreeBSD Foundation <board@freebsdfoundation.org>, Michael Franz <mvfranz@gmail.com>, Roger Hoover <rhoover@apple.com>, Alexander Strange <astrange@apple.com>
author | never |
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date | Sun, 25 Sep 2011 16:03:29 -0700 |
parents | c18cbe5936b8 |
children | a9fed06c01d2 |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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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.x86; | |
26 | |
27 import sun.jvm.hotspot.debugger.*; | |
28 | |
29 /** Specifies the thread context on x86 platforms; only a sub-portion | |
30 of the context is guaranteed to be present on all operating | |
31 systems. */ | |
32 | |
33 public abstract class X86ThreadContext implements ThreadContext { | |
34 // Taken from /usr/include/ia32/sys/reg.h on Solaris/x86 | |
35 | |
36 // NOTE: the indices for the various registers must be maintained as | |
37 // listed across various operating systems. However, only a small | |
38 // subset of the registers' values are guaranteed to be present (and | |
39 // must be present for the SA's stack walking to work): EAX, EBX, | |
40 // ECX, EDX, ESI, EDI, EBP, ESP, and EIP. | |
41 | |
42 public static final int GS = 0; | |
43 public static final int FS = 1; | |
44 public static final int ES = 2; | |
45 public static final int DS = 3; | |
46 public static final int EDI = 4; | |
47 public static final int ESI = 5; | |
48 public static final int EBP = 6; | |
49 public static final int ESP = 7; | |
50 public static final int EBX = 8; | |
51 public static final int EDX = 9; | |
52 public static final int ECX = 10; | |
53 public static final int EAX = 11; | |
54 public static final int TRAPNO = 12; | |
55 public static final int ERR = 13; | |
56 public static final int EIP = 14; | |
57 public static final int CS = 15; | |
58 public static final int EFL = 16; | |
59 public static final int UESP = 17; | |
60 public static final int SS = 18; | |
61 // Additional state (not in reg.h) for debug registers | |
62 public static final int DR0 = 19; | |
63 public static final int DR1 = 20; | |
64 public static final int DR2 = 21; | |
65 public static final int DR3 = 22; | |
66 public static final int DR6 = 23; | |
67 public static final int DR7 = 24; | |
68 | |
69 | |
70 public static final int PC = EIP; | |
71 public static final int FP = EBP; | |
72 public static final int SP = UESP; | |
73 public static final int PS = EFL; | |
74 public static final int R0 = EAX; | |
75 public static final int R1 = EDX; | |
76 | |
77 public static final int NPRGREG = 25; | |
78 | |
79 private static final String[] regNames = { | |
80 "GS", "FS", "ES", "DS", | |
81 "EDI", "ESI", "EBP", "ESP", | |
82 "EBX", "EDX", "ECX", "EAX", | |
83 "TRAPNO", "ERR", "EIP", "CS", | |
84 "EFLAGS", "UESP", "SS", | |
85 "DR0", "DR1", "DR2", "DR3", | |
86 "DR6", "DR7" | |
87 }; | |
88 | |
89 // Ought to be int on x86 but we're stuck | |
90 private long[] data; | |
91 | |
92 public X86ThreadContext() { | |
93 data = new long[NPRGREG]; | |
94 } | |
95 | |
96 public int getNumRegisters() { | |
97 return NPRGREG; | |
98 } | |
99 | |
100 public String getRegisterName(int index) { | |
101 return regNames[index]; | |
102 } | |
103 | |
104 public void setRegister(int index, long value) { | |
105 data[index] = value; | |
106 } | |
107 | |
108 public long getRegister(int index) { | |
109 return data[index]; | |
110 } | |
111 | |
112 /** This can't be implemented in this class since we would have to | |
113 tie the implementation to, for example, the debugging system */ | |
114 public abstract void setRegisterAsAddress(int index, Address value); | |
115 | |
116 /** This can't be implemented in this class since we would have to | |
117 tie the implementation to, for example, the debugging system */ | |
118 public abstract Address getRegisterAsAddress(int index); | |
119 } |