tracechild.hh revision 8113
1/* 2 * Copyright (c) 2010 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2009 The Regents of The University of Michigan 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution; 24 * neither the name of the copyright holders nor the names of its 25 * contributors may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Ali Saidi 41 * Gabe Black 42 */ 43 44#ifndef TRACECHILD_ARM_HH 45#define TRACECHILD_ARM_HH 46 47#include <cassert> 48#include <string> 49#include <sys/user.h> 50#include <sys/ptrace.h> 51#include "base/tracechild.hh" 52 53 54class ARMTraceChild : public TraceChild 55{ 56 public: 57 enum RegNum 58 { 59 // r0 - r3 argument, temp, caller save 60 // r4 - r10 callee save 61 // r11 - FP 62 // r12 - temp 63 // r13 - stack 64 // r14 - link 65 // r15 - pc 66 R0, R1, R2, R3, R4, R5, R6, R7, 67 R8, R9, R10, FP, R12, SP, LR, PC, 68 CPSR, 69 numregs 70 }; 71 private: 72 uint32_t getRegs(user_regs& myregs, int num); 73 user_regs regs; 74 user_regs oldregs; 75 bool regDiffSinceUpdate[numregs]; 76 bool foundMvn; 77 78 protected: 79 bool update(int pid); 80 81 public: 82 ARMTraceChild(); 83 bool sendState(int socket); 84 85 int64_t getRegVal(int num); 86 int64_t getOldRegVal(int num); 87 88 bool step(); 89 90 uint64_t 91 getPC() 92 { 93 return getRegVal(PC); 94 } 95 96 uint64_t 97 getSP() 98 { 99 return getRegVal(SP); 100 } 101 102 std::ostream & outputStartState(std::ostream & os); 103 104}; 105 106#endif 107 108