1 /*
2 * Copyright 2000-2007 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.sparc;
26
27 import sun.jvm.hotspot.debugger.*;
28
29 /** Currently provides just the minimal information necessary to get
30 stack traces working. FIXME: currently hardwired for v9 -- will
31 have to factor out v8/v9 specific code. FIXME: may want to try to
32 share code between this class and asm/sparc. */
33
34 public abstract class SPARCThreadContext implements ThreadContext {
35 // Taken from /usr/include/sys/procfs_isa.h
36 public static final int R_G0 = 0;
37 public static final int R_G1 = 1;
38 public static final int R_G2 = 2;
39 public static final int R_G3 = 3;
40 public static final int R_G4 = 4;
41 public static final int R_G5 = 5;
42 public static final int R_G6 = 6;
43 public static final int R_G7 = 7;
44 public static final int R_O0 = 8;
45 public static final int R_O1 = 9;
46 public static final int R_O2 = 10;
47 public static final int R_O3 = 11;
48 public static final int R_O4 = 12;
49 public static final int R_O5 = 13;
50 public static final int R_O6 = 14;
51 public static final int R_O7 = 15;
52 public static final int R_L0 = 16;
53 public static final int R_L1 = 17;
54 public static final int R_L2 = 18;
55 public static final int R_L3 = 19;
56 public static final int R_L4 = 20;
57 public static final int R_L5 = 21;
58 public static final int R_L6 = 22;
59 public static final int R_L7 = 23;
60 public static final int R_I0 = 24;
61 public static final int R_I1 = 25;
62 public static final int R_I2 = 26;
63 public static final int R_I3 = 27;
64 public static final int R_I4 = 28;
65 public static final int R_I5 = 29;
66 public static final int R_I6 = 30;
67 public static final int R_I7 = 31;
68
69 // sparc-v9
70 public static final int R_CCR = 32;
71 // sparc-v8
72 public static final int R_PSR = 32;
73
74 public static final int R_PC = 33;
75 public static final int R_nPC = 34;
76
77 public static final int R_SP = R_O6;
78 public static final int R_FP = R_I6;
79
80 public static final int R_Y = 35;
81
82 // sparc-v9
83 public static final int R_ASI = 36;
84 public static final int R_FPRS = 37;
85
86 // sparc-v8
87 public static final int R_WIM = 36;
88 public static final int R_TBR = 37;
89
90 public static final int NPRGREG = 38;
91
92 private static final String[] regNames = {
93 "G0", "G1", "G2", "G3",
94 "G4", "G5", "G6", "G7",
95 "O0", "O1", "O2", "O3",
96 "O4", "O5", "O6/SP", "O7",
97 "L0", "L1", "L2", "L3",
98 "L4", "L5", "L6", "L7",
99 "I0", "I1", "I2", "I3",
100 "I4", "I5", "I6/FP", "I7",
101 "CCR/PSR", "PC", "nPC", "Y",
102 "ASI/WIM", "FPRS/TBR"
103 };
104
105 private long[] data;
106
107 public SPARCThreadContext() {
108 data = new long[NPRGREG];
109 }
110
111 public int getNumRegisters() {
112 return NPRGREG;
113 }
114
115 public String getRegisterName(int index) {
116 return regNames[index];
117 }
118
119 public void setRegister(int index, long value) {
120 data[index] = value;
121 }
122
123 public long getRegister(int index) {
124 return data[index];
125 }
126
127 /** This can't be implemented in this class since we would have to
128 tie the implementation to, for example, the debugging system */
129 public abstract void setRegisterAsAddress(int index, Address value);
130
131 /** This can't be implemented in this class since we would have to
132 tie the implementation to, for example, the debugging system */
133 public abstract Address getRegisterAsAddress(int index);
134 }