| /* |
| * Copyright (c) 2002-2005 The Regents of The University of Michigan |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer; |
| * redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution; |
| * neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Authors: Nathan Binkert |
| * Steve Reinhardt |
| */ |
| |
| #ifndef __PC_EVENT_HH__ |
| #define __PC_EVENT_HH__ |
| |
| #include <vector> |
| |
| #include "base/logging.hh" |
| #include "base/types.hh" |
| |
| class ThreadContext; |
| class PCEventQueue; |
| class System; |
| |
| class PCEvent |
| { |
| protected: |
| std::string description; |
| PCEventQueue *queue; |
| Addr evpc; |
| |
| public: |
| PCEvent(PCEventQueue *q, const std::string &desc, Addr pc); |
| |
| virtual ~PCEvent() { if (queue) remove(); } |
| |
| // for DPRINTF |
| virtual const std::string name() const { return description; } |
| |
| std::string descr() const { return description; } |
| Addr pc() const { return evpc; } |
| |
| bool remove(); |
| virtual void process(ThreadContext *tc) = 0; |
| }; |
| |
| class PCEventQueue |
| { |
| protected: |
| typedef PCEvent * record_t; |
| class MapCompare { |
| public: |
| bool operator()(const record_t &l, const record_t &r) const { |
| return l->pc() < r->pc(); |
| } |
| bool operator()(const record_t &l, Addr pc) const { |
| return l->pc() < pc; |
| } |
| bool operator()(Addr pc, const record_t &r) const { |
| return pc < r->pc(); |
| } |
| }; |
| typedef std::vector<record_t> map_t; |
| |
| public: |
| typedef map_t::iterator iterator; |
| typedef map_t::const_iterator const_iterator; |
| |
| protected: |
| typedef std::pair<iterator, iterator> range_t; |
| typedef std::pair<const_iterator, const_iterator> const_range_t; |
| |
| protected: |
| map_t pc_map; |
| |
| bool doService(ThreadContext *tc); |
| |
| public: |
| PCEventQueue(); |
| ~PCEventQueue(); |
| |
| bool remove(PCEvent *event); |
| bool schedule(PCEvent *event); |
| bool service(ThreadContext *tc) |
| { |
| if (pc_map.empty()) |
| return false; |
| |
| return doService(tc); |
| } |
| |
| range_t equal_range(Addr pc); |
| range_t equal_range(PCEvent *event) { return equal_range(event->pc()); } |
| |
| void dump() const; |
| }; |
| |
| |
| inline |
| PCEvent::PCEvent(PCEventQueue *q, const std::string &desc, Addr pc) |
| : description(desc), queue(q), evpc(pc) |
| { |
| queue->schedule(this); |
| } |
| |
| inline bool |
| PCEvent::remove() |
| { |
| if (!queue) |
| panic("cannot remove an uninitialized event;"); |
| |
| return queue->remove(this); |
| } |
| |
| class BreakPCEvent : public PCEvent |
| { |
| protected: |
| bool remove; |
| |
| public: |
| BreakPCEvent(PCEventQueue *q, const std::string &desc, Addr addr, |
| bool del = false); |
| virtual void process(ThreadContext *tc); |
| }; |
| |
| class PanicPCEvent : public PCEvent |
| { |
| public: |
| PanicPCEvent(PCEventQueue *q, const std::string &desc, Addr pc); |
| virtual void process(ThreadContext *tc); |
| }; |
| |
| #endif // __PC_EVENT_HH__ |