Remove use ticks for statistics configure option.

This was obsolete and broken based upon recent time keeping changes.

Thie build option was previously enabled by adding
USE_TICKS_FOR_STATISTICS=1 to the configure command line.

This propagated into the code as preprocessor conditionals
using the __RTEMS_USE_TICKS_FOR_STATISTICS__ conditional.

4 files changed, 7 insertions, 29 deletions

diff --git a/cpukit/score/include/rtems/score/thread.h b/cpukit/score/include/rtems/score/thread.h
index c69646b26b..05c1ff79b9 100644
--- a/cpukit/score/include/rtems/score/thread.h
+++ b/cpukit/score/include/rtems/score/thread.h
@@ -83,13 +83,9 @@ extern "C" {
  *  The user can define this at configure time and go back to ticks
  *  resolution.
  */
-#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
-  #include <rtems/score/timestamp.h>
+#include <rtems/score/timestamp.h>
 
-  typedef Timestamp_Control Thread_CPU_usage_t;
-#else
-  typedef uint32_t Thread_CPU_usage_t;
-#endif
+typedef Timestamp_Control Thread_CPU_usage_t;
 
 /**
  *  The following defines the "return type" of a thread.
diff --git a/cpukit/score/src/schedulerdefaulttick.c b/cpukit/score/src/schedulerdefaulttick.c
index db67ca1508..19acd3b2b8 100644
--- a/cpukit/score/src/schedulerdefaulttick.c
+++ b/cpukit/score/src/schedulerdefaulttick.c
@@ -31,13 +31,6 @@ void _Scheduler_default_Tick(
 {
   (void) scheduler;
 
-  #ifdef __RTEMS_USE_TICKS_FOR_STATISTICS__
-    /*
-     *  Increment the number of ticks this thread has been executing
-     */
-    executing->cpu_time_used++;
-  #endif
-
   /*
    *  If the thread is not preemptible or is not ready, then
    *  just return.
diff --git a/cpukit/score/src/threaddispatch.c b/cpukit/score/src/threaddispatch.c
index f20f427bd6..cce3affda4 100644
--- a/cpukit/score/src/threaddispatch.c
+++ b/cpukit/score/src/threaddispatch.c
@@ -99,17 +99,10 @@ void _Thread_Do_dispatch( Per_CPU_Control *cpu_self, ISR_Level level )
     _ISR_Enable( level );
 #endif
 
-    #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
-      _Thread_Update_cpu_time_used(
-        executing,
-        &cpu_self->time_of_last_context_switch
-      );
-    #else
-      {
-        _TOD_Get_uptime( &cpu_self->time_of_last_context_switch );
-        heir->cpu_time_used++;
-      }
-    #endif
+    _Thread_Update_cpu_time_used(
+      executing,
+      &cpu_self->time_of_last_context_switch
+    );
 
 #if !defined(__DYNAMIC_REENT__)
     /*
diff --git a/cpukit/score/src/threadinitialize.c b/cpukit/score/src/threadinitialize.c
index 3c0a412aee..c6985f013b 100644
--- a/cpukit/score/src/threadinitialize.c
+++ b/cpukit/score/src/threadinitialize.c
@@ -217,11 +217,7 @@ bool _Thread_Initialize(
   /*
    *  Initialize the CPU usage statistics
    */
-  #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
-    _Timestamp_Set_to_zero( &the_thread->cpu_time_used );
-  #else
-    the_thread->cpu_time_used = 0;
-  #endif
+  _Timestamp_Set_to_zero( &the_thread->cpu_time_used );
 
   /*
    * initialize thread's key vaule node chain