Add the ability to track stats in user defined sets of function calls. code can be generated via the base/instrum_codegen.pl script to easily change the functions being tracked. the only thing the user needs to do is add code in tru64System to change how the callerMap is populated.

command line:

m5.* <config file> <args> --server.system:bin=true to track function calls in the server
m5.* <config file> <args> --client.system:bin=true to track function calls in the client

base/statistics.cc:
    make an adjustment to the way stats are printed for FS_MEASURE
base/statistics.hh:
    add a name() virtual function to GenBin.  add a debug printf for activate().
    add amake MainBin the default bin when FS_MEASURE.
cpu/exec_context.cc:
    initialize swCtx to null upon creation of an xc
cpu/exec_context.hh:
    add a SWContext pointer to every execution context.
cpu/simple_cpu/simple_cpu.cc:
    process calls and returns for FS_MEASURE
cpu/simple_cpu/simple_cpu.hh:
    add this so idleCycles will not be accessed before all stats are constructed
kern/tru64/tru64_events.cc:
    add a FnEvent that fires whenever a function we're tracking is called.  implement the process() virtual function for it.
kern/tru64/tru64_events.hh:
    add FnEvent
kern/tru64/tru64_system.cc:
    send bin parameter to System constructor.  add bin parameter to Tru64System object.  initialize all the FnEvent and MainBin members of Tru64system.  also, populate the calling map that indicates whether a function call is on the path we're tracking.
kern/tru64/tru64_system.hh:
    modify the Tru64System class to support FS_MEASURE
sim/system.cc:
    add a bin parameter to System class.  initialize a MainBin to hold the stats for nonPath.
sim/system.hh:
    add a map of to match bins to function names.  add a swCtx map to map pcb addresses to SWContext *s.  Add some supporting functions.

--HG--
extra : convert_revision : af3eadd798cb2d2aed9b54e1059dcedf244dd526

1 files changed, 14 insertions, 2 deletions

diff --git a/base/statistics.hh b/base/statistics.hh
index 2fe6988b0..aa3489727 100644
--- a/base/statistics.hh
+++ b/base/statistics.hh
@@ -60,6 +60,9 @@
 #include <math.h>
 #include "sim/host.hh"
 
+#ifdef FS_MEASURE
+#include "base/trace.hh"
+#endif
 //
 //  Un-comment this to enable weirdo-stat debugging
 //
@@ -2167,6 +2170,7 @@ class GenBin : public Detail::BinBase
     virtual ~GenBin() {};
 
     virtual void activate() = 0;
+    virtual std::string name() const = 0;
     void regBin(GenBin *bin, std::string name);
 };
 
@@ -2198,7 +2202,6 @@ struct StatBin : public GenBin
 
         // That one is for the last trailing flags byte.
         offset() += (size + 1 + mask) & ~mask;
-
         return off;
     }
 
@@ -2212,7 +2215,12 @@ struct StatBin : public GenBin
         return Detail::BinBase::memory() + off;
     }
 
-    virtual void activate()  { setCurBin(this); }
+    virtual void activate()  {
+        setCurBin(this);
+#ifdef FS_MEASURE
+        DPRINTF(TCPIP, "activating %s Bin\n", name());
+#endif
+    }
     static void activate(StatBin &bin) { setCurBin(&bin); }
 
     class BinBase
@@ -2426,7 +2434,11 @@ struct NoBin
  * is NoBin, nothing is binned.  If it is MainBin (or whatever *Bin), then all stats are binned
  * under that Bin.
  */
+#ifdef FS_MEASURE
+typedef MainBin DefaultBin;
+#else
 typedef NoBin DefaultBin;
+#endif
 
 /**
  * This is a simple scalar statistic, like a counter.