2009-02-11 Joel Sherrill <joel.sherrill@oarcorp.com>

	* cpu.c, rtems/score/cpu.h: Eliminate _CPU_Thread_dispatch_pointer and
	passing address of _Thread_Dispatch to _CPU_Initialize. Clean up
	comments.

3 files changed, 9 insertions, 41 deletions

diff --git a/cpukit/score/cpu/c4x/ChangeLog b/cpukit/score/cpu/c4x/ChangeLog
index e75772c861..fa8767afcc 100644
--- a/cpukit/score/cpu/c4x/ChangeLog
+++ b/cpukit/score/cpu/c4x/ChangeLog
@@ -1,3 +1,9 @@
+2009-02-11	Joel Sherrill <joel.sherrill@oarcorp.com>
+
+	* cpu.c, rtems/score/cpu.h: Eliminate _CPU_Thread_dispatch_pointer and
+	passing address of _Thread_Dispatch to _CPU_Initialize. Clean up
+	comments.
+
 2008-09-11	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* rtems/score/types.h: Do not define boolean, single_precision,
diff --git a/cpukit/score/cpu/c4x/cpu.c b/cpukit/score/cpu/c4x/cpu.c
index bfcc81b35f..d06752464b 100644
--- a/cpukit/score/cpu/c4x/cpu.c
+++ b/cpukit/score/cpu/c4x/cpu.c
@@ -21,32 +21,14 @@
  *
  *  This routine performs processor dependent initialization.
  *
- *  INPUT PARAMETERS:
- *    thread_dispatch - address of dispatching routine
+ *  INPUT PARAMETERS: NONE
  *
  *  C4x Specific Information:
  *
  */
 
-void _CPU_Initialize(
-  void      (*thread_dispatch)      /* ignored on this CPU */
-)
+void _CPU_Initialize(void)
 {
-#if 0
-  /*
-   *  The thread_dispatch argument is the address of the entry point
-   *  for the routine called at the end of an ISR once it has been
-   *  decided a context switch is necessary.  On some compilation
-   *  systems it is difficult to call a high-level language routine
-   *  from assembly.  This allows us to trick these systems.
-   *
-   *  If you encounter this problem save the entry point in a CPU
-   *  dependent variable.
-   */
-
-  _CPU_Thread_dispatch_pointer = thread_dispatch;
-#endif
-
 #if (CPU_HARDWARE_FP == TRUE)
   /*
    *  If there is not an easy way to initialize the FP context
diff --git a/cpukit/score/cpu/c4x/rtems/score/cpu.h b/cpukit/score/cpu/c4x/rtems/score/cpu.h
index d6be49c19a..8c15ec6f52 100644
--- a/cpukit/score/cpu/c4x/rtems/score/cpu.h
+++ b/cpukit/score/cpu/c4x/rtems/score/cpu.h
@@ -581,24 +581,6 @@ SCORE_EXTERN void               *_CPU_Interrupt_stack_low;
 SCORE_EXTERN void               *_CPU_Interrupt_stack_high;
 
 /*
- *  With some compilation systems, it is difficult if not impossible to
- *  call a high-level language routine from assembly language.  This
- *  is especially true of commercial Ada compilers and name mangling
- *  C++ ones.  This variable can be optionally defined by the CPU porter
- *  and contains the address of the routine _Thread_Dispatch.  This
- *  can make it easier to invoke that routine at the end of the interrupt
- *  sequence (if a dispatch is necessary).
- *
- *  C4x Specific Information:
- *
- *  This port should not require this.
- */
-
-#if 0
-SCORE_EXTERN void           (*_CPU_Thread_dispatch_pointer)();
-#endif
-
-/*
  *  Nothing prevents the porter from declaring more CPU specific variables.
  *
  *  C4x Specific Information:
@@ -1078,9 +1060,7 @@ void _CPU_Context_Initialize(
  *  XXXanswer
  */
 
-void _CPU_Initialize(
-  void      (*thread_dispatch)
-);
+void _CPU_Initialize(void);
 
 /*
  *  _CPU_ISR_install_raw_handler