gem5/cpu/pc_event.hh
Steve Reinhardt d60de7122d Add functions to System object to set up function-based events,
including automatically fixing up addresses to deal with
optionally executed Alpha gp update prolog.

SConscript:
    Remove freebsd_events.cc and linux_events.cc.
base/remote_gdb.cc:
cpu/pc_event.cc:
kern/system_events.cc:
kern/system_events.hh:
    PCEvents now schedule themselves in constructor.
cpu/pc_event.hh:
    PCEvents now schedule themselves in the constructor.
    Get rid of constructor versions that don't take an address and
    all the schedule() methods that are now unnecessary.
kern/freebsd/freebsd_system.cc:
kern/freebsd/freebsd_system.hh:
    Use new System methods to schedule function-based events.
    Move FreeBSD-specific function event classes into FreebsdSystem.
kern/linux/linux_system.cc:
kern/linux/linux_system.hh:
    Use new System methods to schedule function-based events.
    Move Linux-specific function event classes into LinuxSystem.
kern/tru64/tru64_events.hh:
    PCEvents now schedule themselves in constructor.
    Add DebugPrintfrEvent to encapsulate raw setting as new type
    (to work better with new System function-event method.)
kern/tru64/tru64_system.cc:
    Use new System methods to schedule function-based events.
kern/tru64/tru64_system.hh:
    Add DebugPrintfrEvent to encapsulate raw setting as new type
    (to work better with new System function-event method.)
sim/system.cc:
sim/system.hh:
    Add functions to set up function-based events, including
    automatically fixing up addresses to deal with optionally
    executed Alpha gp update prolog.

--HG--
extra : convert_revision : c2cf09144297b6602afe755a34a0a2227023783f
2005-09-24 14:20:29 -04:00

143 lines
3.9 KiB
C++

/*
* 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.
*/
#ifndef __PC_EVENT_HH__
#define __PC_EVENT_HH__
#include <vector>
#include "mem/mem_req.hh"
class ExecContext;
class PCEventQueue;
class PCEvent
{
protected:
static const Addr badpc = MemReq::inval_addr;
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(ExecContext *xc) = 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(ExecContext *xc);
public:
PCEventQueue();
~PCEventQueue();
bool remove(PCEvent *event);
bool schedule(PCEvent *event);
bool service(ExecContext *xc)
{
if (pc_map.empty())
return false;
return doService(xc);
}
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(ExecContext *xc);
};
#endif // __PC_EVENT_HH__