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-rw-r--r--src/sim/main.cc286
1 files changed, 157 insertions, 129 deletions
diff --git a/src/sim/main.cc b/src/sim/main.cc
index 741926056..d0725ab37 100644
--- a/src/sim/main.cc
+++ b/src/sim/main.cc
@@ -41,7 +41,7 @@
#include <libgen.h>
#include <stdlib.h>
#include <signal.h>
-#include <unistd.h>
+#include <getopt.h>
#include <list>
#include <string>
@@ -57,10 +57,12 @@
#include "base/time.hh"
#include "cpu/base.hh"
#include "cpu/smt.hh"
+#include "mem/mem_object.hh"
+#include "mem/port.hh"
#include "sim/async.hh"
#include "sim/builder.hh"
-#include "sim/configfile.hh"
#include "sim/host.hh"
+#include "sim/serialize.hh"
#include "sim/sim_events.hh"
#include "sim/sim_exit.hh"
#include "sim/sim_object.hh"
@@ -113,40 +115,11 @@ abortHandler(int sigtype)
#endif
}
-
-const char *briefCopyright =
-"Copyright (c) 2001-2006\n"
-"The Regents of The University of Michigan\n"
-"All Rights Reserved\n";
-
-/// Print welcome message.
-void
-sayHello(ostream &out)
-{
- extern const char *compileDate; // from date.cc
-
- ccprintf(out, "M5 Simulator System\n");
- // display copyright
- ccprintf(out, "%s\n", briefCopyright);
- ccprintf(out, "M5 compiled %d\n", compileDate);
- ccprintf(out, "M5 started %s\n", Time::start);
-
- char *host = getenv("HOSTNAME");
- if (!host)
- host = getenv("HOST");
-
- if (host)
- ccprintf(out, "M5 executing on %s\n", host);
-}
-
-
-extern "C" { void init_main(); }
+extern "C" { void init_cc_main(); }
int
main(int argc, char **argv)
{
- sayHello(cerr);
-
signal(SIGFPE, SIG_IGN); // may occur on misspeculated paths
signal(SIGTRAP, SIG_IGN);
signal(SIGUSR1, dumpStatsHandler); // dump intermediate stats
@@ -157,119 +130,145 @@ main(int argc, char **argv)
Py_SetProgramName(argv[0]);
// default path to m5 python code is the currently executing
- // file... Python ZipImporter will find embedded zip archive
- char *pythonpath = argv[0];
-
- bool interactive = false;
- bool getopt_done = false;
- do {
- switch (getopt(argc, argv, "+p:i")) {
- // -p <path> prepends <path> to PYTHONPATH instead of
- // using built-in zip archive. Useful when
- // developing/debugging changes to built-in Python
- // libraries, as the new Python can be tested without
- // building a new m5 binary.
- case 'p':
- pythonpath = optarg;
- break;
-
- // -i forces entry into interactive mode after the
- // supplied script is executed (just like the -i option to
- // the Python interpreter).
- case 'i':
- interactive = true;
- break;
-
- case -1:
- getopt_done = true;
- break;
-
- default:
- fatal("Unrecognized option %c\n", optopt);
- }
- } while (!getopt_done);
-
- // Fix up argc & argv to hide arguments we just processed.
- // getopt() sets optind to the index of the first non-processed
- // argv element.
- argc -= optind;
- argv += optind;
-
- // Set up PYTHONPATH to make sure the m5 module is found
- string newpath(pythonpath);
+ // file... Python ZipImporter will find embedded zip archive.
+ // The M5_ARCHIVE environment variable can be used to override this.
+ char *m5_archive = getenv("M5_ARCHIVE");
+ string pythonpath = m5_archive ? m5_archive : argv[0];
char *oldpath = getenv("PYTHONPATH");
if (oldpath != NULL) {
- newpath += ":";
- newpath += oldpath;
+ pythonpath += ":";
+ pythonpath += oldpath;
}
- if (setenv("PYTHONPATH", newpath.c_str(), true) == -1)
+ if (setenv("PYTHONPATH", pythonpath.c_str(), true) == -1)
fatal("setenv: %s\n", strerror(errno));
// initialize embedded Python interpreter
Py_Initialize();
PySys_SetArgv(argc, argv);
- // initialize SWIG 'main' module
- init_main();
+ // initialize SWIG 'cc_main' module
+ init_cc_main();
- if (argc > 0) {
- // extra arg(s): first is script file, remaining ones are args
- // to script file
- char *filename = argv[0];
- FILE *fp = fopen(filename, "r");
- if (!fp) {
- fatal("cannot open file '%s'\n", filename);
- }
+ PyRun_SimpleString("import m5");
+ PyRun_SimpleString("m5.main()");
- PyRun_AnyFile(fp, filename);
- } else {
- // no script file argument... force interactive prompt
- interactive = true;
- }
+ // 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);
+}
- if (interactive) {
- // The following code to import readline was copied from Python
- // 2.4.3's Modules/main.c.
- // Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006
- // Python Software Foundation; All Rights Reserved
- // We should only enable this if we're actually using an
- // interactive prompt.
- PyObject *v;
- v = PyImport_ImportModule("readline");
- if (v == NULL)
- PyErr_Clear();
- else
- Py_DECREF(v);
-
- PyRun_InteractiveLoop(stdin, "stdin");
+
+/**
+ * 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);
}
- // clean up Python intepreter.
- Py_Finalize();
+ SimObject *simObj = convertSwigSimObjectPtr(pyPtr);
+ if (simObj == NULL)
+ panic("resolveSimObject: failure on pointer conversion for %s", name);
+
+ return simObj;
}
-/// Initialize C++ configuration. Exported to Python via SWIG; invoked
-/// from m5.instantiate().
+/**
+ * Load config.ini into C++ database. Exported to Python via SWIG;
+ * invoked from m5.instantiate().
+ */
void
-initialize()
+loadIniFile(PyObject *_resolveFunc)
{
+ resolveFunc = _resolveFunc;
configStream = simout.find("config.out");
// The configuration database is now complete; start processing it.
- IniFile inifile;
inifile.load("config.ini");
// Initialize statistics database
Stats::InitSimStats();
+}
- // Now process the configuration hierarchy and create the SimObjects.
- ConfigHierarchy configHierarchy(inifile);
- configHierarchy.build();
- configHierarchy.createSimObjects();
+/**
+ * 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()
+{
// Parse and check all non-config-hierarchy parameters.
ParamContext::parseAllContexts(inifile);
ParamContext::checkAllContexts();
@@ -277,28 +276,16 @@ initialize()
// Echo all parameter settings to stats file as well.
ParamContext::showAllContexts(*configStream);
- // Any objects that can't connect themselves until after construction should
- // do so now
- SimObject::connectAll();
-
// Do a second pass to finish initializing the sim objects
SimObject::initAll();
// Restore checkpointed state, if any.
+#if 0
configHierarchy.unserializeSimObjects();
-
- // Done processing the configuration database.
- // Check for unreferenced entries.
- if (inifile.printUnreferenced())
- panic("unreferenced sections/entries in the intermediate ini file");
+#endif
SimObject::regAllStats();
- // uncomment the following to get PC-based execution-time profile
-#ifdef DO_PROFILE
- init_profile((char *)&_init, (char *)&_fini);
-#endif
-
// Check to make sure that the stats package is properly initialized
Stats::check();
@@ -393,6 +380,37 @@ simulate(Tick num_cycles = -1)
// 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.
*/
@@ -407,6 +425,16 @@ 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;
+}
+
/**
* Do C++ simulator exit processing. Exported to SWIG to be invoked
* when simulator terminates via Python's atexit mechanism.
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-28 03:57:10 +0000