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, 17 insertions, 0 deletions

diff --git a/kern/tru64/tru64_events.hh b/kern/tru64/tru64_events.hh
index d41f82f5b..a8f0eb865 100644
--- a/kern/tru64/tru64_events.hh
+++ b/kern/tru64/tru64_events.hh
@@ -35,6 +35,10 @@
 
 class ExecContext;
 
+#ifdef FS_MEASURE
+class System;
+#endif
+
 class SkipFuncEvent : public PCEvent
 {
   public:
@@ -78,4 +82,17 @@ class DumpMbufEvent : public PCEvent
     virtual void process(ExecContext *xc);
 };
 
+#ifdef FS_MEASURE
+class FnEvent : public PCEvent
+{
+  public:
+    FnEvent(PCEventQueue *q, const std::string &desc, System *system);
+    virtual void process(ExecContext *xc);
+    std::string myname() const { return _name; }
+
+  private:
+    std::string _name;
+    Statistics::GenBin *myBin;
+};
+#endif //FS_MEASURE
 #endif // __TRU64_EVENTS_HH__