1 /* 2 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.debugger.sparc; 26 27 import java.lang.annotation.Native; 28 29 import sun.jvm.hotspot.debugger.*; 30 import sun.jvm.hotspot.debugger.cdbg.*; 31 32 /** Currently provides just the minimal information necessary to get 33 stack traces working. FIXME: currently hardwired for v9 -- will 34 have to factor out v8/v9 specific code. FIXME: may want to try to 35 share code between this class and asm/sparc. */ 36 37 public abstract class SPARCThreadContext implements ThreadContext { 38 // Taken from /usr/include/sys/procfs_isa.h 39 40 // One instance of the Native annotation is enough to trigger header generation 41 // for this file. 42 @Native 43 public static final int R_G0 = 0; 44 public static final int R_G1 = 1; 45 public static final int R_G2 = 2; 46 public static final int R_G3 = 3; 47 public static final int R_G4 = 4; 48 public static final int R_G5 = 5; 49 public static final int R_G6 = 6; 50 public static final int R_G7 = 7; 51 public static final int R_O0 = 8; 52 public static final int R_O1 = 9; 53 public static final int R_O2 = 10; 54 public static final int R_O3 = 11; 55 public static final int R_O4 = 12; 56 public static final int R_O5 = 13; 57 public static final int R_O6 = 14; 58 public static final int R_O7 = 15; 59 public static final int R_L0 = 16; 60 public static final int R_L1 = 17; 61 public static final int R_L2 = 18; 62 public static final int R_L3 = 19; 63 public static final int R_L4 = 20; 64 public static final int R_L5 = 21; 65 public static final int R_L6 = 22; 66 public static final int R_L7 = 23; 67 public static final int R_I0 = 24; 68 public static final int R_I1 = 25; 69 public static final int R_I2 = 26; 70 public static final int R_I3 = 27; 71 public static final int R_I4 = 28; 72 public static final int R_I5 = 29; 73 public static final int R_I6 = 30; 74 public static final int R_I7 = 31; 75 76 // sparc-v9 77 public static final int R_CCR = 32; 78 // sparc-v8 79 public static final int R_PSR = 32; 80 81 public static final int R_PC = 33; 82 public static final int R_nPC = 34; 83 84 public static final int R_SP = R_O6; 85 public static final int R_FP = R_I6; 86 87 public static final int R_Y = 35; 88 89 // sparc-v9 90 public static final int R_ASI = 36; 91 public static final int R_FPRS = 37; 92 93 // sparc-v8 94 public static final int R_WIM = 36; 95 public static final int R_TBR = 37; 96 97 public static final int NPRGREG = 38; 98 99 private static final String[] regNames = { 100 "G0", "G1", "G2", "G3", 101 "G4", "G5", "G6", "G7", 102 "O0", "O1", "O2", "O3", 103 "O4", "O5", "O6/SP", "O7", 104 "L0", "L1", "L2", "L3", 105 "L4", "L5", "L6", "L7", 106 "I0", "I1", "I2", "I3", 107 "I4", "I5", "I6/FP", "I7", 108 "CCR/PSR", "PC", "nPC", "Y", 109 "ASI/WIM", "FPRS/TBR" 110 }; 111 112 private long[] data; 113 114 public SPARCThreadContext() { 115 data = new long[NPRGREG]; 116 } 117 118 public int getNumRegisters() { 119 return NPRGREG; 120 } 121 122 public String getRegisterName(int index) { 123 return regNames[index]; 124 } 125 126 public void setRegister(int index, long value) { 127 data[index] = value; 128 } 129 130 public long getRegister(int index) { 131 return data[index]; 132 } 133 134 public CFrame getTopFrame(Debugger dbg) { 135 return null; 136 } 137 138 /** This can't be implemented in this class since we would have to 139 tie the implementation to, for example, the debugging system */ 140 public abstract void setRegisterAsAddress(int index, Address value); 141 142 /** This can't be implemented in this class since we would have to 143 tie the implementation to, for example, the debugging system */ 144 public abstract Address getRegisterAsAddress(int index); 145 }