143 lines
3.9 KiB
C++
143 lines
3.9 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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#ifndef __PC_EVENT_HH__
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#define __PC_EVENT_HH__
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#include <vector>
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#include "mem/mem_req.hh"
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class ExecContext;
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class PCEventQueue;
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class PCEvent
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{
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protected:
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static const Addr badpc = MemReq::inval_addr;
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protected:
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std::string description;
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PCEventQueue *queue;
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Addr evpc;
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public:
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PCEvent(PCEventQueue *q, const std::string &desc, Addr pc);
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virtual ~PCEvent() { if (queue) remove(); }
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// for DPRINTF
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virtual const std::string name() const { return description; }
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std::string descr() const { return description; }
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Addr pc() const { return evpc; }
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bool remove();
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virtual void process(ExecContext *xc) = 0;
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};
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class PCEventQueue
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{
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protected:
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typedef PCEvent * record_t;
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class MapCompare {
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public:
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bool operator()(const record_t &l, const record_t &r) const {
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return l->pc() < r->pc();
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}
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bool operator()(const record_t &l, Addr pc) const {
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return l->pc() < pc;
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}
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bool operator()(Addr pc, const record_t &r) const {
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return pc < r->pc();
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}
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};
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typedef std::vector<record_t> map_t;
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public:
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typedef map_t::iterator iterator;
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typedef map_t::const_iterator const_iterator;
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protected:
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typedef std::pair<iterator, iterator> range_t;
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typedef std::pair<const_iterator, const_iterator> const_range_t;
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protected:
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map_t pc_map;
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bool doService(ExecContext *xc);
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public:
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PCEventQueue();
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~PCEventQueue();
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bool remove(PCEvent *event);
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bool schedule(PCEvent *event);
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bool service(ExecContext *xc)
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{
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if (pc_map.empty())
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return false;
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return doService(xc);
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}
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range_t equal_range(Addr pc);
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range_t equal_range(PCEvent *event) { return equal_range(event->pc()); }
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void dump() const;
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};
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inline
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PCEvent::PCEvent(PCEventQueue *q, const std::string &desc, Addr pc)
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: description(desc), queue(q), evpc(pc)
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{
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queue->schedule(this);
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}
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inline bool
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PCEvent::remove()
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{
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if (!queue)
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panic("cannot remove an uninitialized event;");
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return queue->remove(this);
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}
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class BreakPCEvent : public PCEvent
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{
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protected:
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bool remove;
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public:
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BreakPCEvent(PCEventQueue *q, const std::string &desc, Addr addr,
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bool del = false);
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virtual void process(ExecContext *xc);
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};
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#endif // __PC_EVENT_HH__
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