130 lines
4 KiB
C++
130 lines
4 KiB
C++
/*
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* Copyright (c) 2002-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Nathan Binkert
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*/
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#ifndef __ARCH_ALPHA_REMOTE_GDB_HH__
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#define __ARCH_ALPHA_REMOTE_GDB_HH__
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#include <map>
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#include "arch/alpha/types.hh"
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#include "arch/alpha/kgdb.h"
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#include "base/remote_gdb.hh"
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#include "cpu/pc_event.hh"
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#include "base/pollevent.hh"
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#include "base/socket.hh"
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class System;
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class ThreadContext;
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class PhysicalMemory;
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namespace AlphaISA
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{
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class RemoteGDB : public BaseRemoteGDB
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{
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private:
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friend void debugger();
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friend class GDBListener;
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protected:
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class Event : public PollEvent
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{
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protected:
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RemoteGDB *gdb;
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public:
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Event(RemoteGDB *g, int fd, int e);
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void process(int revent);
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};
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friend class Event;
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Event *event;
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protected:
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// Machine memory
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bool write(Addr addr, size_t size, const char *data);
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public:
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RemoteGDB(System *system, ThreadContext *context);
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~RemoteGDB();
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bool acc(Addr addr, size_t len);
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protected:
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void getregs();
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void setregs();
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void clearSingleStep();
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void setSingleStep();
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PCEventQueue *getPcEventQueue();
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protected:
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class HardBreakpoint : public PCEvent
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{
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private:
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RemoteGDB *gdb;
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public:
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int refcount;
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public:
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HardBreakpoint(RemoteGDB *_gdb, Addr addr);
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std::string name() { return gdb->name() + ".hwbkpt"; }
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virtual void process(ThreadContext *tc);
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};
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friend class HardBreakpoint;
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typedef std::map<Addr, HardBreakpoint *> break_map_t;
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typedef break_map_t::iterator break_iter_t;
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break_map_t hardBreakMap;
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bool insertSoftBreak(Addr addr, size_t len);
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bool removeSoftBreak(Addr addr, size_t len);
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bool insertHardBreak(Addr addr, size_t len);
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bool removeHardBreak(Addr addr, size_t len);
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protected:
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struct TempBreakpoint {
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Addr address; // set here
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MachInst bkpt_inst; // saved instruction at bkpt
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int init_count; // number of times to skip bkpt
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int count; // current count
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};
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TempBreakpoint notTakenBkpt;
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TempBreakpoint takenBkpt;
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void clearTempBreakpoint(TempBreakpoint &bkpt);
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void setTempBreakpoint(TempBreakpoint &bkpt, Addr addr);
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};
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}
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#endif /* __ARCH_ALPHA_REMOTE_GDB_H__ */
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