Patch from John Cotton <john.cotton@nrc.ca>, Charles-Antoine Gauthier

<charles.gauthier@iit.nrc.ca>, and Darlene A. Stewart
<Darlene.Stewart@nrc.ca> to add support for a number of very
significant things:

  + BSPs for many variations on the Motorola MBX8xx board series
  + Cache Manager including initial support for m68040
    and PowerPC
  + Rework of mpc8xx libcpu code so all mpc8xx CPUs now use
    same code base.
  + Rework of eth_comm BSP to utiltize above.

John reports this works on the 821 and 860

3 files changed, 164 insertions, 9 deletions

diff --git a/c/src/exec/score/src/Makefile.am b/c/src/exec/score/src/Makefile.am
index c348a606f1..97a2597cda 100644
--- a/c/src/exec/score/src/Makefile.am
+++ b/c/src/exec/score/src/Makefile.am
@@ -27,17 +27,18 @@ OBJECT_C_FILES = object.c objectallocate.c objectallocatebyindex.c \
     objectclearname.c objectcomparenameraw.c objectcomparenamestring.c \
     objectcopynameraw.c objectcopynamestring.c objectextendinformation.c \
     objectfree.c objectget.c objectgetbyindex.c objectgetnext.c \
-    objectinitializeinformation.c objectnametoid.c objectshrinkinformation.c
+    objectinitializeinformation.c objectlocaliterate.c objectnametoid.c \
+    objectshrinkinformation.c
 
 THREAD_C_FILES = thread.c threadchangepriority.c threadclearstate.c \
     threadclose.c threadcreateidle.c threaddelayended.c threaddispatch.c \
     threadevaluatemode.c threadget.c threadhandler.c threadidlebody.c \
-    threadinitialize.c threadloadenv.c threadready.c threadresettimeslice.c \
-    threadreset.c threadrestart.c threadresume.c threadrotatequeue.c \
-    threadsetpriority.c threadsetstate.c threadsettransient.c \
-    threadstackallocate.c threadstackfree.c threadstart.c \
-    threadstartmultitasking.c threadsuspend.c threadtickletimeslice.c \
-    threadyieldprocessor.c
+    threadinitialize.c threadloadenv.c threadlocaliterate.c threadready.c \
+    threadresettimeslice.c threadreset.c threadrestart.c threadresume.c \
+    threadrotatequeue.c threadsetpriority.c threadsetstate.c \
+    threadsettransient.c threadstackallocate.c threadstackfree.c \
+    threadstart.c threadstartmultitasking.c threadsuspend.c \
+    threadtickletimeslice.c threadyieldprocessor.c
 
 THREADQ_C_FILES = threadq.c threadqdequeue.c threadqdequeuefifo.c \
     threadqdequeuepriority.c threadqenqueue.c threadqenqueuefifo.c \
@@ -53,8 +54,8 @@ WATCHDOG_C_FILES = watchdog.c watchdogadjust.c watchdoginsert.c \
     watchdogremove.c watchdogtickle.c
 
 STD_C_FILES = apiext.c chain.c $(CORE_MESSAGE_QUEUE_C_FILES) \
-    $(CORE_MUTEX_C_FILES) $(CORE_SEMAPHORE_C_FILES) $(HEAP_C_FILES) interr.c \
-    isr.c $(OBJECT_C_FILES) $(THREAD_C_FILES) $(THREADQ_C_FILES) \
+    $(CORE_MUTEX_C_FILES) $(CORE_SEMAPHORE_C_FILES) $(HEAP_C_FILES) \
+    interr.c isr.c $(OBJECT_C_FILES) $(THREAD_C_FILES) $(THREADQ_C_FILES) \
     $(TOD_C_FILES) userext.c $(WATCHDOG_C_FILES) wkspace.c
 
 if HAS_MP
diff --git a/c/src/exec/score/src/objectlocaliterate.c b/c/src/exec/score/src/objectlocaliterate.c
new file mode 100644
index 0000000000..e4b0f28de8
--- /dev/null
+++ b/c/src/exec/score/src/objectlocaliterate.c
@@ -0,0 +1,77 @@
+/*
+ *  object iterator
+ *
+ *
+ *  COPYRIGHT (c) 2000.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/score/object.h>
+
+/*PAGE
+ *
+ *  _Objects_Local_iterate
+ *
+ *  DESCRIPTION:
+ *
+ *  This function invokes the callback function for each existing object
+ *  of the type specified by the information block pointer. Iteration
+ *  continues until either all objects have been processed, or, if
+ *  break_on_error is TRUE, until an invocation of the callback returns
+ *  something other than 0.
+ *
+ *  Input parameters:
+ *    information:
+ *      A pointer to an Objects_Information block. Determines the type of
+ *      object over which to iterate.
+ *    callback:
+ *      A pointer to a function with the indicated signature.
+ *    arg: 
+ *      A pointer to some arbitrary entity. Passed on to the callback.
+ *    break_on_error
+ *      If TRUE, stop iterating on error.
+ *
+ *  Output parameters: NONE
+ *    But callback may write into space pointed to by arg.
+ *
+ *  Return value:
+ *    0 if successful
+ *    Value returned by the callback otherwise.
+ */
+
+unsigned32 _Objects_Local_iterate(
+  Objects_Information  *information,
+  unsigned32          (*callback)(Objects_Control *object, void * arg),
+  void                 *arg,
+  boolean               break_on_error
+)
+{
+  unsigned32       result;
+  unsigned32       i;
+  Objects_Control *the_object;
+
+  if ( !information )
+    return 0;
+    
+  if ( !callback )
+    return 0;   
+    
+  for( i = 1; i <= information->maximum; i++ ) {
+    the_object = (Objects_Control *)information->local_table[i];
+    if( the_object ) {
+      result = (*callback)( the_object, arg );
+      if ( result && break_on_error )
+        return result;
+    }
+  }
+    
+  return 0;
+}
+
diff --git a/c/src/exec/score/src/threadlocaliterate.c b/c/src/exec/score/src/threadlocaliterate.c
new file mode 100644
index 0000000000..a2d94fe81a
--- /dev/null
+++ b/c/src/exec/score/src/threadlocaliterate.c
@@ -0,0 +1,77 @@
+/*
+ *  Thread Iterator
+ *
+ *
+ *  COPYRIGHT (c) 2000.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/score/object.h>
+#include <rtems/score/thread.h>
+
+
+/*PAGE
+ *
+ *  _Thread_Local_iterate
+ *
+ *  DESCRIPTION:
+ *
+ *  This function invokes the callback function for each existing thread.
+ *  Iteration continues until either all threads have been processed, or,
+ *  if break_on_error is TRUE, until an invocation of the callback returns
+ *  an integer value other than 0.
+ *
+ *  Input parameters:
+ *    callback:
+ *      A pointer to a function with the indicated signature.
+ *    arg: 
+ *      A pointer to some arbitrary entity. Passed on to the callback.
+ *    break_on_error
+ *      If TRUE, stop iterating on error.
+ *
+ *
+ *  Output parameters: NONE
+ *    But callback may write into space pointed to by arg.
+ *
+ *  Return value:
+ *    0 if successful
+ *    Value returned by the callback otherwise.
+ */
+
+unsigned32 _Thread_Local_iterate(
+  unsigned32 (*callback)(Thread_Control *the_thread, void * arg),
+  void        *arg,
+  boolean      break_on_error
+)
+{
+  unsigned32 class_index;
+  unsigned32 result;
+  Objects_Information *information;
+  
+  if( callback == NULL )
+    return 0;
+  
+  for ( class_index = OBJECTS_CLASSES_FIRST ;
+        class_index <= OBJECTS_CLASSES_LAST ;
+        class_index++ ) {
+    information = _Objects_Information_table[ class_index ];
+    if ( information && information->is_thread ) {
+      result = _Objects_Local_iterate( 
+          information,
+          (unsigned32 (*)(Objects_Control *, void *))callback,
+	  arg,
+	  break_on_error );
+      if( result && break_on_error )
+        return result;
+    }
+  }
+  
+  return 0;
+}