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authorGabe Black <gblack@eecs.umich.edu>2007-03-03 06:24:01 +0000
committerGabe Black <gblack@eecs.umich.edu>2007-03-03 06:24:01 +0000
commit68ad1533096ab736c534cb29364a1a93e1010306 (patch)
tree1499c0085d1e4de76b37827e6d691f91364bc396 /src/sim
parent23dc5099a4bca9e38a286d867c4eccd7db3c09c1 (diff)
parentffe6bebb05c30b0f1d7cde5ad5b94a2551938630 (diff)
downloadgem5-68ad1533096ab736c534cb29364a1a93e1010306.tar.xz
Merge zizzer.eecs.umich.edu:/bk/newmem
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-sparc32 --HG-- extra : convert_revision : bbd0def502e423e64e2c4f6415a4b043b60c7f90
Diffstat (limited to 'src/sim')
-rw-r--r--src/sim/async.cc38
-rw-r--r--src/sim/async.hh3
-rw-r--r--src/sim/core.cc76
-rw-r--r--src/sim/core.hh40
-rw-r--r--src/sim/main.cc355
-rw-r--r--src/sim/simulate.cc121
-rw-r--r--src/sim/simulate.hh35
7 files changed, 320 insertions, 348 deletions
diff --git a/src/sim/async.cc b/src/sim/async.cc
new file mode 100644
index 000000000..1a8e499f7
--- /dev/null
+++ b/src/sim/async.cc
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2000-2005 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
+ */
+
+volatile bool async_event = false;
+volatile bool async_statdump = false;
+volatile bool async_statreset = false;
+volatile bool async_exit = false;
+volatile bool async_io = false;
+volatile bool async_alarm = false;
+volatile bool async_exception = false;
+
diff --git a/src/sim/async.hh b/src/sim/async.hh
index 6ee5eb46a..932f975d2 100644
--- a/src/sim/async.hh
+++ b/src/sim/async.hh
@@ -43,7 +43,8 @@
/// @note See the PollQueue object (in pollevent.hh) for the use of async_io and async_alarm.
//@{
extern volatile bool async_event; ///< Some asynchronous event has happened.
-extern volatile bool async_dump; ///< Async request to dump stats.
+extern volatile bool async_statdump; ///< Async request to dump stats.
+extern volatile bool async_statreset; ///< Async request to reset stats.
extern volatile bool async_exit; ///< Async request to exit simulator.
extern volatile bool async_io; ///< Async I/O request (SIGIO).
extern volatile bool async_alarm; ///< Async alarm event (SIGALRM).
diff --git a/src/sim/core.cc b/src/sim/core.cc
new file mode 100644
index 000000000..24cc33da2
--- /dev/null
+++ b/src/sim/core.cc
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2006 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
+ */
+
+#include <iostream>
+#include <string>
+
+#include "base/callback.hh"
+#include "base/output.hh"
+
+using namespace std;
+
+void
+setOutputDir(const string &dir)
+{
+ simout.setDirectory(dir);
+}
+
+/**
+ * Queue of C++ callbacks to invoke on simulator exit.
+ */
+inline CallbackQueue &
+exitCallbacks()
+{
+ static CallbackQueue theQueue;
+ return theQueue;
+}
+
+/**
+ * Register an exit callback.
+ */
+void
+registerExitCallback(Callback *callback)
+{
+ exitCallbacks().add(callback);
+}
+
+/**
+ * Do C++ simulator exit processing. Exported to SWIG to be invoked
+ * when simulator terminates via Python's atexit mechanism.
+ */
+void
+doExitCleanup()
+{
+ exitCallbacks().process();
+ exitCallbacks().clear();
+
+ cout.flush();
+}
diff --git a/src/sim/core.hh b/src/sim/core.hh
new file mode 100644
index 000000000..2ef21c4b6
--- /dev/null
+++ b/src/sim/core.hh
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2006 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
+ */
+
+#include <Python.h>
+#include <string>
+
+#include "base/callback.hh"
+
+void setOutputDir(const std::string &dir);
+
+void registerExitCallback(Callback *callback);
+void doExitCleanup();
diff --git a/src/sim/main.cc b/src/sim/main.cc
index 8e47ac6a0..e7fb4039e 100644
--- a/src/sim/main.cc
+++ b/src/sim/main.cc
@@ -25,79 +25,38 @@
* (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: Steve Raasch
- * Nathan Binkert
- * Steve Reinhardt
+ * Authors: Nathan Binkert
*/
-///
-/// @file sim/main.cc
-///
-#include <Python.h> // must be before system headers... see Python docs
+#include <Python.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <libgen.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <getopt.h>
-
-#include <list>
+#include <iostream>
#include <string>
-#include <vector>
-#include "base/callback.hh"
-#include "base/inifile.hh"
+#include "base/cprintf.hh"
#include "base/misc.hh"
-#include "base/output.hh"
-#include "base/pollevent.hh"
-#include "base/statistics.hh"
-#include "base/stats/output.hh"
-#include "base/str.hh"
-#include "base/time.hh"
#include "config/pythonhome.hh"
-#include "cpu/base.hh"
-#include "cpu/smt.hh"
-#include "mem/mem_object.hh"
-#include "mem/port.hh"
#include "python/swig/init.hh"
#include "sim/async.hh"
-#include "sim/builder.hh"
#include "sim/host.hh"
-#include "sim/serialize.hh"
-#include "sim/sim_events.hh"
-#include "sim/sim_exit.hh"
-#include "sim/sim_object.hh"
-#include "sim/system.hh"
-#include "sim/stat_control.hh"
-#include "sim/stats.hh"
#include "sim/root.hh"
using namespace std;
-// See async.h.
-volatile bool async_event = false;
-volatile bool async_dump = false;
-volatile bool async_dumpreset = false;
-volatile bool async_exit = false;
-volatile bool async_io = false;
-volatile bool async_alarm = false;
-volatile bool async_exception = false;
-
/// Stats signal handler.
void
dumpStatsHandler(int sigtype)
{
async_event = true;
- async_dump = true;
+ async_statdump = true;
}
void
dumprstStatsHandler(int sigtype)
{
async_event = true;
- async_dumpreset = true;
+ async_statdump = true;
+ async_statreset = true;
}
/// Exit signal handler.
@@ -112,7 +71,7 @@ exitNowHandler(int sigtype)
void
abortHandler(int sigtype)
{
- cerr << "Program aborted at cycle " << curTick << endl;
+ ccprintf(cerr, "Program aborted at cycle %d\n", curTick);
}
int
@@ -160,301 +119,3 @@ main(int argc, char **argv)
// clean up Python intepreter.
Py_Finalize();
}
-
-
-void
-setOutputDir(const string &dir)
-{
- simout.setDirectory(dir);
-}
-
-
-IniFile inifile;
-
-SimObject *
-createSimObject(const string &name)
-{
- return SimObjectClass::createObject(inifile, name);
-}
-
-
-/**
- * Pointer to the Python function that maps names to SimObjects.
- */
-PyObject *resolveFunc = NULL;
-
-/**
- * Convert a pointer to the Python object that SWIG wraps around a C++
- * SimObject pointer back to the actual C++ pointer. See main.i.
- */
-extern "C" SimObject *convertSwigSimObjectPtr(PyObject *);
-
-
-SimObject *
-resolveSimObject(const string &name)
-{
- PyObject *pyPtr = PyEval_CallFunction(resolveFunc, "(s)", name.c_str());
- if (pyPtr == NULL) {
- PyErr_Print();
- panic("resolveSimObject: failure on call to Python for %s", name);
- }
-
- SimObject *simObj = convertSwigSimObjectPtr(pyPtr);
- if (simObj == NULL)
- panic("resolveSimObject: failure on pointer conversion for %s", name);
-
- return simObj;
-}
-
-
-/**
- * Load config.ini into C++ database. Exported to Python via SWIG;
- * invoked from m5.instantiate().
- */
-void
-loadIniFile(PyObject *_resolveFunc)
-{
- resolveFunc = _resolveFunc;
- configStream = simout.find("config.out");
-
- // The configuration database is now complete; start processing it.
- inifile.load(simout.resolve("config.ini"));
-
- // Initialize statistics database
- Stats::initSimStats();
-}
-
-
-/**
- * Look up a MemObject port. Helper function for connectPorts().
- */
-Port *
-lookupPort(SimObject *so, const std::string &name, int i)
-{
- MemObject *mo = dynamic_cast<MemObject *>(so);
- if (mo == NULL) {
- warn("error casting SimObject %s to MemObject", so->name());
- return NULL;
- }
-
- Port *p = mo->getPort(name, i);
- if (p == NULL)
- warn("error looking up port %s on object %s", name, so->name());
- return p;
-}
-
-
-/**
- * Connect the described MemObject ports. Called from Python via SWIG.
- */
-int
-connectPorts(SimObject *o1, const std::string &name1, int i1,
- SimObject *o2, const std::string &name2, int i2)
-{
- Port *p1 = lookupPort(o1, name1, i1);
- Port *p2 = lookupPort(o2, name2, i2);
-
- if (p1 == NULL || p2 == NULL) {
- warn("connectPorts: port lookup error");
- return 0;
- }
-
- p1->setPeer(p2);
- p2->setPeer(p1);
-
- return 1;
-}
-
-/**
- * Do final initialization steps after object construction but before
- * start of simulation.
- */
-void
-finalInit()
-{
- // Do a second pass to finish initializing the sim objects
- SimObject::initAll();
-
- // Restore checkpointed state, if any.
-#if 0
- configHierarchy.unserializeSimObjects();
-#endif
-
- SimObject::regAllStats();
-
- // Check to make sure that the stats package is properly initialized
- Stats::check();
-
- // Reset to put the stats in a consistent state.
- Stats::reset();
-
- SimStartup();
-}
-
-/** Simulate for num_cycles additional cycles. If num_cycles is -1
- * (the default), do not limit simulation; some other event must
- * terminate the loop. Exported to Python via SWIG.
- * @return The SimLoopExitEvent that caused the loop to exit.
- */
-SimLoopExitEvent *
-simulate(Tick num_cycles = MaxTick)
-{
- warn("Entering event queue @ %d. Starting simulation...\n", curTick);
-
- if (num_cycles < 0)
- fatal("simulate: num_cycles must be >= 0 (was %d)\n", num_cycles);
- else if (curTick + num_cycles < 0) //Overflow
- num_cycles = MaxTick;
- else
- num_cycles = curTick + num_cycles;
-
- Event *limit_event = schedExitSimLoop("simulate() limit reached",
- num_cycles);
-
- while (1) {
- // there should always be at least one event (the SimLoopExitEvent
- // we just scheduled) in the queue
- assert(!mainEventQueue.empty());
- assert(curTick <= mainEventQueue.nextTick() &&
- "event scheduled in the past");
-
- // forward current cycle to the time of the first event on the
- // queue
- curTick = mainEventQueue.nextTick();
- Event *exit_event = mainEventQueue.serviceOne();
- if (exit_event != NULL) {
- // hit some kind of exit event; return to Python
- // event must be subclass of SimLoopExitEvent...
- SimLoopExitEvent *se_event = dynamic_cast<SimLoopExitEvent *>(exit_event);
- if (se_event == NULL)
- panic("Bogus exit event class!");
-
- // if we didn't hit limit_event, delete it
- if (se_event != limit_event) {
- assert(limit_event->scheduled());
- limit_event->deschedule();
- delete limit_event;
- }
-
- return se_event;
- }
-
- if (async_event) {
- async_event = false;
- if (async_dump) {
- async_dump = false;
- Stats::StatEvent(true, false);
- }
-
- if (async_dumpreset) {
- async_dumpreset = false;
- Stats::StatEvent(true, true);
- }
-
- if (async_exit) {
- async_exit = false;
- exitSimLoop("user interrupt received");
- }
-
- if (async_io || async_alarm) {
- async_io = false;
- async_alarm = false;
- pollQueue.service();
- }
-
- if (async_exception) {
- async_exception = false;
- return NULL;
- }
- }
- }
-
- // not reached... only exit is return on SimLoopExitEvent
-}
-
-Event *
-createCountedDrain()
-{
- return new CountedDrainEvent();
-}
-
-void
-cleanupCountedDrain(Event *counted_drain)
-{
- CountedDrainEvent *event =
- dynamic_cast<CountedDrainEvent *>(counted_drain);
- if (event == NULL) {
- fatal("Called cleanupCountedDrain() on an event that was not "
- "a CountedDrainEvent.");
- }
- assert(event->getCount() == 0);
- delete event;
-}
-
-void
-serializeAll(const std::string &cpt_dir)
-{
- Serializable::serializeAll(cpt_dir);
-}
-
-void
-unserializeAll(const std::string &cpt_dir)
-{
- Serializable::unserializeAll(cpt_dir);
-}
-
-/**
- * Queue of C++ callbacks to invoke on simulator exit.
- */
-CallbackQueue&
-exitCallbacks()
-{
- static CallbackQueue theQueue;
- return theQueue;
-}
-
-/**
- * Register an exit callback.
- */
-void
-registerExitCallback(Callback *callback)
-{
- exitCallbacks().add(callback);
-}
-
-BaseCPU *
-convertToBaseCPUPtr(SimObject *obj)
-{
- BaseCPU *ptr = dynamic_cast<BaseCPU *>(obj);
-
- if (ptr == NULL)
- warn("Casting to BaseCPU pointer failed");
- return ptr;
-}
-
-System *
-convertToSystemPtr(SimObject *obj)
-{
- System *ptr = dynamic_cast<System *>(obj);
-
- if (ptr == NULL)
- warn("Casting to System pointer failed");
- return ptr;
-}
-
-
-/**
- * Do C++ simulator exit processing. Exported to SWIG to be invoked
- * when simulator terminates via Python's atexit mechanism.
- */
-void
-doExitCleanup()
-{
- exitCallbacks().process();
- exitCallbacks().clear();
-
- cout.flush();
-
- // print simulation stats
- Stats::dump();
-}
diff --git a/src/sim/simulate.cc b/src/sim/simulate.cc
new file mode 100644
index 000000000..55cbb50a9
--- /dev/null
+++ b/src/sim/simulate.cc
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2006 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
+ */
+
+#include "base/misc.hh"
+#include "base/pollevent.hh"
+#include "sim/stat_control.hh"
+#include "sim/async.hh"
+#include "sim/eventq.hh"
+#include "sim/host.hh"
+#include "sim/sim_events.hh"
+#include "sim/sim_exit.hh"
+#include "sim/simulate.hh"
+
+/** Simulate for num_cycles additional cycles. If num_cycles is -1
+ * (the default), do not limit simulation; some other event must
+ * terminate the loop. Exported to Python via SWIG.
+ * @return The SimLoopExitEvent that caused the loop to exit.
+ */
+SimLoopExitEvent *
+simulate(Tick num_cycles)
+{
+ warn("Entering event queue @ %d. Starting simulation...\n", curTick);
+
+ if (num_cycles < 0)
+ fatal("simulate: num_cycles must be >= 0 (was %d)\n", num_cycles);
+ else if (curTick + num_cycles < 0) //Overflow
+ num_cycles = MaxTick;
+ else
+ num_cycles = curTick + num_cycles;
+
+ Event *limit_event;
+ limit_event = schedExitSimLoop("simulate() limit reached", num_cycles);
+
+ while (1) {
+ // there should always be at least one event (the SimLoopExitEvent
+ // we just scheduled) in the queue
+ assert(!mainEventQueue.empty());
+ assert(curTick <= mainEventQueue.nextTick() &&
+ "event scheduled in the past");
+
+ // forward current cycle to the time of the first event on the
+ // queue
+ curTick = mainEventQueue.nextTick();
+ Event *exit_event = mainEventQueue.serviceOne();
+ if (exit_event != NULL) {
+ // hit some kind of exit event; return to Python
+ // event must be subclass of SimLoopExitEvent...
+ SimLoopExitEvent *se_event;
+ se_event = dynamic_cast<SimLoopExitEvent *>(exit_event);
+
+ if (se_event == NULL)
+ panic("Bogus exit event class!");
+
+ // if we didn't hit limit_event, delete it
+ if (se_event != limit_event) {
+ assert(limit_event->scheduled());
+ limit_event->deschedule();
+ delete limit_event;
+ }
+
+ return se_event;
+ }
+
+ if (async_event) {
+ async_event = false;
+ if (async_statdump || async_statreset) {
+ async_statdump = false;
+ async_statreset = false;
+
+ Stats::StatEvent(async_statdump, async_statreset);
+ }
+
+ if (async_exit) {
+ async_exit = false;
+ exitSimLoop("user interrupt received");
+ }
+
+ if (async_io || async_alarm) {
+ async_io = false;
+ async_alarm = false;
+ pollQueue.service();
+ }
+
+ if (async_exception) {
+ async_exception = false;
+ return NULL;
+ }
+ }
+ }
+
+ // not reached... only exit is return on SimLoopExitEvent
+}
+
diff --git a/src/sim/simulate.hh b/src/sim/simulate.hh
new file mode 100644
index 000000000..139bddb82
--- /dev/null
+++ b/src/sim/simulate.hh
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2006 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
+ */
+
+#include "sim/host.hh"
+#include "sim/sim_events.hh"
+
+SimLoopExitEvent *simulate(Tick num_cycles = MaxTick);