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+/*
+ * Copyright (c) 2003 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_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() : queue(0), evpc(badpc) { }
+
+ PCEvent(const std::string &desc)
+ : description(desc), queue(0), evpc(badpc) { }
+
+ PCEvent(PCEventQueue *q, Addr pc = badpc) : queue(q), evpc(pc) { }
+
+ PCEvent(PCEventQueue *q, const std::string &desc, Addr pc = badpc)
+ : description(desc), queue(q), evpc(pc) { }
+
+ virtual ~PCEvent() { if (queue) remove(); }
+
+ std::string descr() const { return description; }
+ Addr pc() const { return evpc; }
+
+ bool remove();
+ bool schedule();
+ bool schedule(Addr pc);
+ bool schedule(PCEventQueue *q, Addr pc);
+ 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;
+
+ public:
+ PCEventQueue();
+ ~PCEventQueue();
+
+ bool remove(PCEvent *event);
+ bool schedule(PCEvent *event);
+ bool service(ExecContext *xc);
+
+ range_t equal_range(Addr pc);
+ range_t equal_range(PCEvent *event) { return equal_range(event->pc()); }
+
+ void dump() const;
+};
+
+inline bool
+PCEvent::remove()
+{
+ if (!queue)
+ panic("cannot remove an uninitialized event;");
+
+ return queue->remove(this);
+}
+
+inline bool
+PCEvent::schedule()
+{
+ if (!queue || evpc == badpc)
+ panic("cannot schedule an uninitialized event;");
+
+ return queue->schedule(this);
+}
+
+inline bool
+PCEvent::schedule(Addr pc)
+{
+ if (evpc != badpc)
+ panic("cannot switch PC");
+ evpc = pc;
+
+ return schedule();
+}
+
+inline bool
+PCEvent::schedule(PCEventQueue *q, Addr pc)
+{
+ if (queue)
+ panic("cannot switch event queues");
+
+ if (evpc != badpc)
+ panic("cannot switch addresses");
+
+ queue = q;
+ evpc = pc;
+
+ return schedule();
+}
+
+
+#ifdef FULL_SYSTEM
+class SkipFuncEvent : public PCEvent
+{
+ public:
+ SkipFuncEvent(PCEventQueue *q, const std::string &desc)
+ : PCEvent(q, desc) {}
+ virtual void process(ExecContext *xc);
+};
+
+class BadAddrEvent : public SkipFuncEvent
+{
+ public:
+ BadAddrEvent(PCEventQueue *q, const std::string &desc)
+ : SkipFuncEvent(q, desc) {}
+ virtual void process(ExecContext *xc);
+};
+
+class PrintfEvent : public PCEvent
+{
+ public:
+ PrintfEvent(PCEventQueue *q, const std::string &desc)
+ : PCEvent(q, desc) {}
+ virtual void process(ExecContext *xc);
+};
+
+class DebugPrintfEvent : public PCEvent
+{
+ private:
+ bool raw;
+
+ public:
+ DebugPrintfEvent(PCEventQueue *q, const std::string &desc, bool r = false)
+ : PCEvent(q, desc), raw(r) {}
+ virtual void process(ExecContext *xc);
+};
+
+class DumpMbufEvent : public PCEvent
+{
+ public:
+ DumpMbufEvent(PCEventQueue *q, const std::string &desc)
+ : PCEvent(q, desc) {}
+ virtual void process(ExecContext *xc);
+};
+#endif
+
+class BreakPCEvent : public PCEvent
+{
+ protected:
+ bool remove;
+
+ public:
+ BreakPCEvent(PCEventQueue *q, const std::string &desc, bool del = false);
+ virtual void process(ExecContext *xc);
+};
+
+
+#endif // __PC_EVENT_HH__