provide an output stream for simulator output. (This takes place of the

statStream catchall that we had before)
Also provide an optional output directory that multiple simulator output
files can be written to.
Make most output files use the output directory

base/misc.cc:
    send warnings to the outputStream as well
base/trace.cc:
    dprintf_stream defaults to cerr
dev/console.cc:
    use the output directory for the console output if it exists
dev/etherdump.cc:
    dump to the output directory if it exists
sim/builder.cc:
sim/builder.hh:
    move constructor and destructor to .cc file
    use a function to get the stream that the builder dumps its
    output to, and create a separate file in the output directory
    if able
sim/main.cc:
    statStream -> outputStream
sim/serialize.cc:
    dump checkpoints to the output directory if specified
sim/universe.cc:
    provide an output stream for simulator output.  (This takes place of the
    statStream catchall that we had before)
    Also provide an optional output directory that multiple simulator output
    files can be written to.

--HG--
extra : convert_revision : 03abce20edbbf7ec19c9ddd8d69ec8485c383532

5 files changed, 121 insertions, 26 deletions

diff --git a/sim/builder.cc b/sim/builder.cc
index fa435d322..e2345556e 100644
--- a/sim/builder.cc
+++ b/sim/builder.cc
@@ -34,10 +34,45 @@
 #include "sim/configfile.hh"
 #include "sim/host.hh"
 #include "sim/sim_object.hh"
-#include "sim/sim_stats.hh"
+#include "sim/universe.hh"
 
 using namespace std;
 
+
+ostream &
+builderStream()
+{
+    static ofstream file;
+    static ostream *stream = NULL;
+
+    if (!stream) {
+        if (!outputDirectory.empty()) {
+            string filename = outputDirectory + "builder.txt";
+            file.open(filename.c_str());
+            stream = &file;
+        } else {
+            stream = outputStream;
+        }
+    }
+
+    return *stream;
+}
+
+SimObjectBuilder::SimObjectBuilder(const string &_configClass,
+                                   const string &_instanceName,
+                                   ConfigNode *_configNode,
+                                   const string &_simObjClassName)
+    : ParamContext(_configClass, true),
+      instanceName(_instanceName),
+      configNode(_configNode),
+      simObjClassName(_simObjClassName)
+{
+}
+
+SimObjectBuilder::~SimObjectBuilder()
+{
+}
+
 ///////////////////////////////////////////
 //
 // SimObjectBuilder member definitions
@@ -151,10 +186,10 @@ SimObjectClass::createObject(IniFile &configDB,
 
     // echo object parameters to stats file (for documenting the
     // config used to generate the associated stats)
-    *statStream << "[" << object->name() << "]" << endl;
-    *statStream << "type=" << simObjClassName << endl;
-    objectBuilder->showParams(*statStream);
-    *statStream << endl;
+    builderStream() << "[" << object->name() << "]" << endl;
+    builderStream() << "type=" << simObjClassName << endl;
+    objectBuilder->showParams(builderStream());
+    builderStream() << endl;
 
     // done with the SimObjectBuilder now
     delete objectBuilder;
diff --git a/sim/builder.hh b/sim/builder.hh
index 0364276bf..e13a85272 100644
--- a/sim/builder.hh
+++ b/sim/builder.hh
@@ -29,15 +29,18 @@
 #ifndef __BUILDER_HH__
 #define __BUILDER_HH__
 
-#include <map>
+#include <iosfwd>
 #include <list>
+#include <map>
 #include <vector>
-#include <iostream>
 
 #include "sim/param.hh"
 
 class SimObject;
 
+std::ostream &
+builderStream();
+
 //
 // A SimObjectBuilder serves as an evaluation context for a set of
 // parameters that describe a specific instance of a SimObject.  This
@@ -69,15 +72,9 @@ class SimObjectBuilder : public ParamContext
     SimObjectBuilder(const std::string &_configClass,
                      const std::string &_instanceName,
                      ConfigNode *_configNode,
-                     const std::string &_simObjClassName)
-        : ParamContext(_configClass, true),
-          instanceName(_instanceName),
-          configNode(_configNode),
-          simObjClassName(_simObjClassName)
-    {
-    }
-
-    virtual ~SimObjectBuilder() {}
+                     const std::string &_simObjClassName);
+
+    virtual ~SimObjectBuilder();
 
     // call parse() on all params in this context to convert string
     // representations to parameter values
diff --git a/sim/main.cc b/sim/main.cc
index d2c56d9f2..48d64d4cd 100644
--- a/sim/main.cc
+++ b/sim/main.cc
@@ -54,6 +54,7 @@
 #include "sim/sim_init.hh"
 #include "sim/sim_object.hh"
 #include "sim/sim_stats.hh"
+#include "sim/universe.hh"
 
 using namespace std;
 
@@ -355,12 +356,12 @@ main(int argc, char **argv)
 
     // Print hello message to stats file if it's actually a file.  If
     // it's not (i.e. it's cout or cerr) then we already did it above.
-    if (statStreamIsFile)
-        sayHello(*statStream);
+    if (outputStream != &cout && outputStream != &cerr)
+        sayHello(*outputStream);
 
     // Echo command line and all parameter settings to stats file as well.
-    echoCommandLine(argc, argv, *statStream);
-    ParamContext::showAllContexts(*statStream);
+    echoCommandLine(argc, argv, *outputStream);
+    ParamContext::showAllContexts(builderStream());
 
     // Now process the configuration hierarchy and create the SimObjects.
     ConfigHierarchy configHierarchy(simConfigDB);
diff --git a/sim/serialize.cc b/sim/serialize.cc
index 33956c6e7..281e7cfc8 100644
--- a/sim/serialize.cc
+++ b/sim/serialize.cc
@@ -305,10 +305,9 @@ class SerializeParamContext : public ParamContext
 
 SerializeParamContext serialParams("serialize");
 
-Param<string> serialize_dir(&serialParams,
-                            "dir",
+Param<string> serialize_dir(&serialParams, "dir",
                             "dir to stick checkpoint in "
-                            "(sprintf format with cycle #)", "m5.%012d");
+                            "(sprintf format with cycle #)");
 
 Param<Counter> serialize_cycle(&serialParams,
                                 "cycle",
@@ -333,11 +332,18 @@ SerializeParamContext::~SerializeParamContext()
 void
 SerializeParamContext::checkParams()
 {
-    checkpointDirBase = serialize_dir;
+    if (serialize_dir.isValid()) {
+        checkpointDirBase = serialize_dir;
+    } else {
+        if (outputDirectory.empty())
+            checkpointDirBase = "m5.%012d";
+        else
+            checkpointDirBase = outputDirectory + "cpt.%012d";
+    }
+
     // guarantee that directory ends with a '/'
-    if (checkpointDirBase[checkpointDirBase.size() - 1] != '/') {
+    if (checkpointDirBase[checkpointDirBase.size() - 1] != '/')
         checkpointDirBase += "/";
-    }
 
     if (serialize_cycle > 0)
         Checkpoint::setup(serialize_cycle, serialize_period);
diff --git a/sim/universe.cc b/sim/universe.cc
index b75b1f78a..440c6363f 100644
--- a/sim/universe.cc
+++ b/sim/universe.cc
@@ -26,10 +26,17 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <cstring>
+#include <fstream>
 #include <list>
 #include <string>
 #include <vector>
 
+#include "base/files.hh"
+#include "base/misc.hh"
 #include "sim/universe.hh"
 #include "sim/host.hh"
 #include "sim/param.hh"
@@ -42,8 +49,14 @@ double __ticksPerMS;
 double __ticksPerUS;
 double __ticksPerNS;
 
+string outputDirectory;
+ostream *outputStream;
+
 class UniverseParamContext : public ParamContext
 {
+  private:
+    ofstream outputFile;
+
   public:
     UniverseParamContext(const string &is) : ParamContext(is) {}
     void checkParams();
@@ -54,6 +67,11 @@ UniverseParamContext universe("Universe");
 Param<Tick> universe_freq(&universe, "frequency", "tick frequency",
                           200000000);
 
+Param<string> universe_output_dir(&universe, "output_dir",
+                                  "directory to output data to");
+Param<string> universe_output_file(&universe, "output_file",
+                                   "file to dump simulator output to");
+
 void
 UniverseParamContext::checkParams()
 {
@@ -62,4 +80,42 @@ UniverseParamContext::checkParams()
     __ticksPerMS = freq / 1.0e3;
     __ticksPerUS = freq / 1.0e6;
     __ticksPerNS = freq / 1.0e9;
+
+    if (universe_output_dir.isValid()) {
+        outputDirectory = universe_output_dir;
+
+        // guarantee that directory ends with a '/'
+        if (outputDirectory[outputDirectory.size() - 1] != '/')
+            outputDirectory += "/";
+
+        if (mkdir(outputDirectory.c_str(), 0777) < 0) {
+            if (errno != EEXIST) {
+                panic("%s\ncould not make output directory: %s\n",
+                      strerror(errno), outputDirectory);
+            }
+        }
+    }
+
+    string filename;
+    if (universe_output_file.isValid()) {
+        string f = universe_output_file;
+        if (f != "stdout" && f != "cout" && f != "stderr" && f != "cerr")
+            filename = outputDirectory + f;
+        else
+            filename = f;
+    } else {
+        if (outputDirectory.empty())
+            filename = "stdout";
+        else
+            filename = outputDirectory + "output.txt";
+    }
+
+    if (filename == "stdout" || filename == "cout")
+        outputStream = &cout;
+    else if (filename == "stderr" || filename == "cerr")
+        outputStream = &cerr;
+    else {
+        outputFile.open(filename.c_str(), ios::trunc);
+        outputStream = &outputFile;
+    }
 }