remote_gdb.hh revision 8544:2862c39f66f8
1/* 2 * Copyright (c) 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: Nathan Binkert 29 */ 30 31#ifndef __ARCH_MIPS_REMOTE_GDB_HH__ 32#define __ARCH_MIPS_REMOTE_GDB_HH__ 33 34#include "arch/mips/registers.hh" 35#include "base/bitfield.hh" 36#include "base/remote_gdb.hh" 37 38class System; 39class ThreadContext; 40class PhysicalMemory; 41 42namespace MipsISA 43{ 44 45 // The number of special regs depends on gdb. 46 // Two 32-bit regs are packed into one 64-bit reg. 47 const int GdbIntArchRegs = NumIntArchRegs / 2; 48 const int GdbIntSpecialRegs = 6 / 2; 49 const int GdbFloatArchRegs = NumFloatArchRegs / 2; 50 const int GdbFloatSpecialRegs = 2 / 2; 51 52 const int GdbIntRegs = GdbIntArchRegs + GdbIntSpecialRegs; 53 const int GdbFloatRegs = GdbFloatArchRegs + GdbFloatSpecialRegs; 54 const int GdbNumRegs = GdbIntRegs + GdbFloatRegs; 55 56 class RemoteGDB : public BaseRemoteGDB 57 { 58 protected: 59 Addr notTakenBkpt; 60 Addr takenBkpt; 61 62 public: 63 RemoteGDB(System *_system, ThreadContext *tc); 64 65 protected: 66 bool acc(Addr addr, size_t len); 67 68 void getregs(); 69 void setregs(); 70 71 void clearSingleStep(); 72 void setSingleStep(); 73 74 private: 75 uint64_t 76 pack(uint32_t lo, uint32_t hi) 77 { 78 return static_cast<uint64_t>(hi) << 32 | lo; 79 } 80 uint32_t 81 unpackLo(uint64_t val) 82 { 83 return bits(val, 31, 0); 84 } 85 uint32_t 86 unpackHi(uint64_t val) 87 { 88 return bits(val, 63, 32); 89 } 90 }; 91} 92 93#endif /* __ARCH_MIPS_REMOTE_GDB_H__ */ 94