167928f12b
cpu/simple_cpu/simple_cpu.cc: Serialize FP regs as integers (so we get exact bit representation). sim/serialize.cc: Don't panic on object rename... events come up named "event" and need to get renamed. Also fix some DPRINTFs. --HG-- extra : convert_revision : 62ad527a7aaf78ae623b70febc1331cf91cbad05
354 lines
8.5 KiB
C++
354 lines
8.5 KiB
C++
/*
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* Copyright (c) 2003 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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#include <sys/time.h>
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#include <fstream>
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#include <list>
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#include <string>
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#include <vector>
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#include "base/misc.hh"
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#include "sim/eventq.hh"
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#include "sim/param.hh"
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#include "sim/serialize.hh"
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#include "base/inifile.hh"
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#include "sim/sim_events.hh"
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#include "sim/sim_object.hh"
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#include "base/trace.hh"
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using namespace std;
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Serializer *Serializeable::serializer = NULL;
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Serializeable::Serializeable(const string &n)
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: proxy(this), objName(n), serialized(false)
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{ }
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Serializeable::~Serializeable()
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{ }
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void
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Serializeable::mark()
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{
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if (!serialized)
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serializer->add_object(this);
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serialized = true;
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}
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ostream &
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Serializeable::out() const
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{
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return serializer->out();
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}
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void
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Serializeable::nameOut()
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{
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out() << "\n[" << name() << "]\n";
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}
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void
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Serializeable::nameOut(const string &_name)
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{
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out() << "\n[" << _name << "]\n";
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}
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template<> void
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Serializeable::paramOut(const string &name, const uint64_t& param)
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{
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out() << name << "=0x" << hex << param << dec << "\n";
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}
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void
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Serializeable::childOut(const string &name, Serializeable *child)
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{
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child->mark();
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if (child->name() == "")
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panic("child is unnamed");
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out() << name << "=" << child->name() << "\n";
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}
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void
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Serializeable::setName(const string &name)
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{
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if (objName != "") {
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cprintf("Renaming object '%s' to '%s'.\n", objName, name);
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}
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objName = name;
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}
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Serializer::Serializer()
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{ }
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Serializer::~Serializer()
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{ }
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ostream &
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Serializer::out() const
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{
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if (!output)
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panic("must set output before serializing");
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return *output;
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}
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void
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Serializer::add_object(Serializeable *obj)
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{
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objects.push_back(obj);
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}
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void
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Serializer::add_objects()
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{
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mainEventQueue.mark();
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SimObject::SimObjectList::iterator i = SimObject::simObjectList.begin();
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SimObject::SimObjectList::iterator end = SimObject::simObjectList.end();
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while (i != end) {
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(*i)->mark();
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++i;
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}
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}
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void
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Serializer::serialize(const string &f)
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{
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if (Serializeable::serializer != NULL)
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panic("in process of serializing!");
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Serializeable::serializer = this;
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file = f;
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string cpt_file = file + ".cpt";
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output = new ofstream(cpt_file.c_str());
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time_t t = time(NULL);
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*output << "// checkpoint generated: " << ctime(&t);
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serlist_t list;
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add_objects();
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while (!objects.empty()) {
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Serializeable *serial = objects.front();
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DPRINTF(Serialize, "Naming children of %s\n", serial->name());
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serial->nameChildren();
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objects.pop_front();
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list.push_back(serial);
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}
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while (!list.empty()) {
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list.front()->serialized = false;
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list.pop_front();
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}
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add_objects();
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while (!objects.empty()) {
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Serializeable *serial = objects.front();
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DPRINTF(Serialize, "Serializing %s\n", serial->name());
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serial->serialize();
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objects.pop_front();
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list.push_back(serial);
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}
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while (!list.empty()) {
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list.front()->serialized = false;
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list.pop_front();
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}
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Serializeable::serializer = NULL;
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delete output;
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output = NULL;
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file = "";
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}
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class SerializeEvent : public Event
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{
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protected:
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string file;
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public:
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SerializeEvent(EventQueue *q, Tick when, const string &file);
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~SerializeEvent();
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virtual void process();
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virtual void serialize();
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};
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SerializeEvent::SerializeEvent(EventQueue *q, Tick when, const string &f)
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: Event(q), file(f)
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{
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setFlags(AutoDelete);
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schedule(when);
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}
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SerializeEvent::~SerializeEvent()
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{
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}
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void
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SerializeEvent::process()
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{
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Serializer serial;
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serial.serialize(file);
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new SimExitEvent("Serialization caused exit");
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}
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void
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SerializeEvent::serialize()
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{
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panic("Cannot serialize the SerializeEvent");
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}
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class SerializeParamContext : public ParamContext
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{
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private:
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SerializeEvent *event;
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public:
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SerializeParamContext(const string §ion);
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~SerializeParamContext();
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void checkParams();
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};
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SerializeParamContext serialParams("serialize");
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Param<Counter> serialize_cycle(&serialParams,
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"cycle",
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"cycle to serialize",
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0);
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Param<string> serialize_file(&serialParams,
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"file",
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"file to write to", "");
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SerializeParamContext::SerializeParamContext(const string §ion)
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: ParamContext(section), event(NULL)
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{ }
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SerializeParamContext::~SerializeParamContext()
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{
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}
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void
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SerializeParamContext::checkParams()
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{
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if (!((string)serialize_file).empty() && serialize_cycle > 0)
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event = new SerializeEvent(&mainEventQueue, serialize_cycle,
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serialize_file);
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}
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void
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debug_serialize(const char *file)
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{
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Serializer serial;
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serial.serialize(file);
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new SimExitEvent("Serialization caused exit");
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}
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////////////////////////////////////////////////////////////////////////
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//
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// SerializeableClass member definitions
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//
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////////////////////////////////////////////////////////////////////////
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// Map of class names to SerializeableBuilder creation functions.
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// Need to make this a pointer so we can force initialization on the
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// first reference; otherwise, some SerializeableClass constructors
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// may be invoked before the classMap constructor.
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map<string,SerializeableClass::CreateFunc> *SerializeableClass::classMap = 0;
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// SerializeableClass constructor: add mapping to classMap
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SerializeableClass::SerializeableClass(const string &className,
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CreateFunc createFunc)
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{
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if (classMap == NULL)
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classMap = new map<string,SerializeableClass::CreateFunc>();
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if ((*classMap)[className])
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{
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cerr << "Error: simulation object class " << className << " redefined"
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<< endl;
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fatal("");
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}
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// add className --> createFunc to class map
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(*classMap)[className] = createFunc;
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}
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//
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//
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Serializeable *
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SerializeableClass::createObject(IniFile &configDB,
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const string &configClassName)
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{
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// find simulation object class name from configuration class
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// (specified by 'type=' parameter)
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string simObjClassName;
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if (!configDB.findDefault(configClassName, "type", simObjClassName)) {
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cerr << "Configuration class '" << configClassName << "' not found."
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<< endl;
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abort();
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}
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// look up className to get appropriate createFunc
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if (classMap->find(simObjClassName) == classMap->end()) {
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cerr << "Simulator object class '" << simObjClassName << "' not found."
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<< endl;
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abort();
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}
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CreateFunc createFunc = (*classMap)[simObjClassName];
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// builder instance
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SerializeableBuilder *objectBuilder = (*createFunc)();
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assert(objectBuilder != NULL);
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// now create the actual simulation object
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Serializeable *object = objectBuilder->create();
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assert(object != NULL);
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// done with the SerializeableBuilder now
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delete objectBuilder;
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return object;
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}
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