tracechild.hh revision 6216
1/* 2 * Copyright (c) 2006-2007 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Gabe Black 29 */ 30 31#ifndef TRACECHILD_SPARC_HH 32#define TRACECHILD_SPARC_HH 33 34#include <asm-sparc64/reg.h> 35#include <cassert> 36#include <ostream> 37#include <stdint.h> 38#include <string> 39#include <sys/ptrace.h> 40#include <sys/types.h> 41 42#include "tracechild.hh" 43 44struct regs; 45 46class SparcTraceChild : public TraceChild 47{ 48public: 49 enum RegNum 50 { 51 //Global registers 52 G0, G1, G2, G3, G4, G5, G6, G7, 53 //Output registers 54 O0, O1, O2, O3, O4, O5, O6, O7, 55 //Local registers 56 L0, L1, L2, L3, L4, L5, L6, L7, 57 //Input registers 58 I0, I1, I2, I3, I4, I5, I6, I7, 59 //Floating point 60 F0, F2, F4, F6, F8, F10, F12, F14, 61 F16, F18, F20, F22, F24, F26, F28, F30, 62 F32, F34, F36, F38, F40, F42, F44, F46, 63 F48, F50, F52, F54, F56, F58, F60, F62, 64 //Miscelaneous 65 FSR, FPRS, PC, NPC, Y, CWP, PSTATE, ASI, CCR, 66 numregs 67 }; 68private: 69 char printBuffer[256]; 70 static std::string regNames[numregs]; 71 regs theregs; 72 regs oldregs; 73 fpu thefpregs; 74 fpu oldfpregs; 75 uint64_t locals[8]; 76 uint64_t oldLocals[8]; 77 uint64_t inputs[8]; 78 uint64_t oldInputs[8]; 79 bool regDiffSinceUpdate[numregs]; 80 81 //This calculates where the pc might go after the current instruction. 82 //while this equals npc for most instructions, it doesn't for all of 83 //them. The return value is the number of actual potential targets. 84 int getTargets(uint32_t inst, uint64_t pc, uint64_t npc, 85 uint64_t &target1, uint64_t &target2); 86 87protected: 88 bool update(int pid); 89 90public: 91 SparcTraceChild(); 92 93 bool sendState(int socket); 94 95 int getNumRegs() 96 { 97 return numregs; 98 } 99 100 bool diffSinceUpdate(int num) 101 { 102 assert(num < numregs && num >= 0); 103 return regDiffSinceUpdate[num]; 104 } 105 106 std::string getRegName(int num) 107 { 108 assert(num < numregs && num >= 0); 109 return regNames[num]; 110 } 111 112 int64_t getRegVal(int num); 113 114 int64_t getOldRegVal(int num); 115 116 bool step(); 117 118 uint64_t getPC() 119 { 120 return getRegVal(PC); 121 } 122 123 uint64_t getSP() 124 { 125 return getRegVal(O6); 126 } 127 128 char * printReg(int num); 129 130 std::ostream & outputStartState(std::ostream & os); 131}; 132 133#endif 134