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, 34 deletions

diff --git a/cpukit/score/cpu/sh/ChangeLog b/cpukit/score/cpu/sh/ChangeLog
index 3ddea8e439..af889732c7 100644
--- a/cpukit/score/cpu/sh/ChangeLog
+++ b/cpukit/score/cpu/sh/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.
+
 2008-09-30	Joel Sherrill <joel.sherrill@oarcorp.com>
 
 	* cpu.c: Fine tune conditional so _CPU_ISR_install_vector is in CPU Kit
diff --git a/cpukit/score/cpu/sh/cpu.c b/cpukit/score/cpu/sh/cpu.c
index a50c233db0..0daa7579ea 100644
--- a/cpukit/score/cpu/sh/cpu.c
+++ b/cpukit/score/cpu/sh/cpu.c
@@ -39,31 +39,14 @@ extern proc_ptr _Hardware_isr_Table[];
  *
  *  This routine performs processor dependent initialization.
  *
- *  INPUT PARAMETERS:
- *    thread_dispatch - address of dispatching routine
+ *  INPUT PARAMETERS: NONE
  */
 
-
-void _CPU_Initialize(
-  void      (*thread_dispatch)      /* ignored on this CPU */
-)
+void _CPU_Initialize(void)
 {
   register uint32_t   level = 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;
-
-  /*
    *  If there is not an easy way to initialize the FP context
    *  during Context_Initialize, then it is usually easier to
    *  save an "uninitialized" FP context here and copy it to
diff --git a/cpukit/score/cpu/sh/rtems/score/cpu.h b/cpukit/score/cpu/sh/rtems/score/cpu.h
index 358b32e029..158f486ed4 100644
--- a/cpukit/score/cpu/sh/rtems/score/cpu.h
+++ b/cpukit/score/cpu/sh/rtems/score/cpu.h
@@ -429,18 +429,6 @@ 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).
- */
-
-SCORE_EXTERN void           (*_CPU_Thread_dispatch_pointer)(void);
-
-/*
  *  Nothing prevents the porter from declaring more CPU specific variables.
  */
 
@@ -825,9 +813,7 @@ extern uint8_t   _bit_set_table[];
  *  This routine performs CPU dependent initialization.
  */
 
-void _CPU_Initialize(
-  void      (*thread_dispatch)
-);
+void _CPU_Initialize(void);
 
 /*
  *  _CPU_ISR_install_raw_handler