2008-09-17 Joel Sherrill <joel.sherrill@oarcorp.com>

* minimum/init.c, unlimited/system.h: Add support for optionally having
	a unified work area. In other words, the RTEMS Workspace and C
	Program Heap are the same pool of memory.

testsuites/samples/ChangeLog

@@ -1,3 +1,9 @@
+2008-09-17	Joel Sherrill <joel.sherrill@oarcorp.com>
+
+	* minimum/init.c, unlimited/system.h: Add support for optionally having
+	a unified work area. In other words, the RTEMS Workspace and C
+	Program Heap are the same pool of memory.
+
 2008-09-17	Miao Yan <yanmiaobest@gmail.com>
 
 	* hello/system.h, minimum/Makefile.am, minimum/init.c: Merge GSOC

testsuites/samples/minimum/init.c

@@ -77,6 +77,21 @@ rtems_task Init(
  */
 #define CONFIGURE_DISABLE_CLASSIC_API_NOTEPADS
 
+/*
+ *  This configures RTEMS to use a single memory pool for the RTEMS Workspace
+ *  and C Program Heap.  If not defined, there will be separate memory pools
+ *  for the RTEMS Workspace and C Program Heap.  Having separate pools
+ *  does haved some advantages in the event a task blows a stack or writes
+ *  outside its memory area. However, in low memory systems the overhead of
+ *  the two pools plus the potential for unused memory in either pool is
+ *  very undesirable.
+ *
+ *  In high memory environments, this is desirable when you want to use
+ *  the RTEMS "unlimited" objects option.  You will be able to create objects
+ *  until you run out of memory.
+ */
+#define CONFIGURE_UNIFIED_WORK_AREAS
+
 /*
  *  In this application, the initialization task performs the system
  *  initialization and then transforms itself into the idle task.

testsuites/samples/unlimited/system.h

@@ -46,6 +46,7 @@ void test3();
 #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
 #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
 
+#define CONFIGURE_UNIFIED_WORK_AREAS
 #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
 
 #define TASK_ALLOCATION_SIZE     (5)