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1 /*
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2 * Copyright 2000-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.debugger.sparc;
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26
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27 import sun.jvm.hotspot.debugger.*;
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28
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29 /** Currently provides just the minimal information necessary to get
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30 stack traces working. FIXME: currently hardwired for v9 -- will
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31 have to factor out v8/v9 specific code. FIXME: may want to try to
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32 share code between this class and asm/sparc. */
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33
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34 public abstract class SPARCThreadContext implements ThreadContext {
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35 // Taken from /usr/include/sys/procfs_isa.h
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36 public static final int R_G0 = 0;
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37 public static final int R_G1 = 1;
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38 public static final int R_G2 = 2;
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39 public static final int R_G3 = 3;
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40 public static final int R_G4 = 4;
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41 public static final int R_G5 = 5;
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42 public static final int R_G6 = 6;
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43 public static final int R_G7 = 7;
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44 public static final int R_O0 = 8;
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45 public static final int R_O1 = 9;
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46 public static final int R_O2 = 10;
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47 public static final int R_O3 = 11;
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48 public static final int R_O4 = 12;
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49 public static final int R_O5 = 13;
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50 public static final int R_O6 = 14;
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51 public static final int R_O7 = 15;
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52 public static final int R_L0 = 16;
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53 public static final int R_L1 = 17;
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54 public static final int R_L2 = 18;
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55 public static final int R_L3 = 19;
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56 public static final int R_L4 = 20;
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57 public static final int R_L5 = 21;
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58 public static final int R_L6 = 22;
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59 public static final int R_L7 = 23;
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60 public static final int R_I0 = 24;
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61 public static final int R_I1 = 25;
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62 public static final int R_I2 = 26;
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63 public static final int R_I3 = 27;
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64 public static final int R_I4 = 28;
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65 public static final int R_I5 = 29;
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66 public static final int R_I6 = 30;
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67 public static final int R_I7 = 31;
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68
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69 // sparc-v9
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70 public static final int R_CCR = 32;
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71 // sparc-v8
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72 public static final int R_PSR = 32;
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73
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74 public static final int R_PC = 33;
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75 public static final int R_nPC = 34;
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76
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77 public static final int R_SP = R_O6;
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78 public static final int R_FP = R_I6;
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79
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80 public static final int R_Y = 35;
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81
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82 // sparc-v9
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83 public static final int R_ASI = 36;
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84 public static final int R_FPRS = 37;
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85
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86 // sparc-v8
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87 public static final int R_WIM = 36;
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88 public static final int R_TBR = 37;
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89
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90 public static final int NPRGREG = 38;
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91
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92 private static final String[] regNames = {
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93 "G0", "G1", "G2", "G3",
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94 "G4", "G5", "G6", "G7",
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95 "O0", "O1", "O2", "O3",
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96 "O4", "O5", "O6/SP", "O7",
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97 "L0", "L1", "L2", "L3",
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98 "L4", "L5", "L6", "L7",
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99 "I0", "I1", "I2", "I3",
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100 "I4", "I5", "I6/FP", "I7",
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101 "CCR/PSR", "PC", "nPC", "Y",
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102 "ASI/WIM", "FPRS/TBR"
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103 };
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104
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105 private long[] data;
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106
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107 public SPARCThreadContext() {
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108 data = new long[NPRGREG];
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109 }
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110
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111 public int getNumRegisters() {
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112 return NPRGREG;
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113 }
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114
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115 public String getRegisterName(int index) {
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116 return regNames[index];
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117 }
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118
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119 public void setRegister(int index, long value) {
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120 data[index] = value;
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121 }
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122
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123 public long getRegister(int index) {
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124 return data[index];
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125 }
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126
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127 /** This can't be implemented in this class since we would have to
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128 tie the implementation to, for example, the debugging system */
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129 public abstract void setRegisterAsAddress(int index, Address value);
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130
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131 /** This can't be implemented in this class since we would have to
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132 tie the implementation to, for example, the debugging system */
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133 public abstract Address getRegisterAsAddress(int index);
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134 }
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