2008-09-14 Joel Sherrill <joel.sherrill@oarcorp.com>

* Makefile.am, startup/bspstart.c: Create bsp_get_work_area() into its
	own file and use BSP Framework to perform more initialization.
	* startup/bspgetworkarea.c: New file.

c/src/lib/libbsp/nios2/nios2_iss/ChangeLog

@@ -1,3 +1,9 @@
+2008-09-14	Joel Sherrill <joel.sherrill@oarcorp.com>
+
+	* Makefile.am, startup/bspstart.c: Create bsp_get_work_area() into its
+	own file and use BSP Framework to perform more initialization.
+	* startup/bspgetworkarea.c: New file.
+
 2008-09-10	Joel Sherrill <joel.sherrill@oarcorp.com>
 
 	* include/bsp.h: Review of all bsp_cleanup() implementations. In this

c/src/lib/libbsp/nios2/nios2_iss/Makefile.am

@@ -31,6 +31,7 @@ dist_project_lib_DATA += startup/linkcmds
 
 startup_SOURCES = startup/bspclean.c ../../shared/bsplibc.c \
     ../../shared/bsppost.c startup/bspstart.c \
+    ../../shared/bsppretaskinghook.c startup/bspgetworkarea.c \
     ../../shared/bootcard.c ../../shared/sbrk.c startup/setvec.c \
     ../../shared/gnatinstallhandler.c
 clock_SOURCES = clock/clock.c

c/src/lib/libbsp/nios2/nios2_iss/startup/bspgetworkarea.c

@@ -0,0 +1,41 @@
+/*
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <stdint.h>
+
+extern void *_RamBase;
+extern void *_RamSize;
+extern void *end;
+
+extern char __alt_heap_start[];
+
+/*
+ *  This method returns the base address and size of the area which
+ *  is to be allocated between the RTEMS Workspace and the C Program
+ *  Heap.
+ */
+void bsp_get_work_area(
+  void   **work_area_start,
+  size_t  *work_area_size,
+  void   **heap_start,
+  size_t  *heap_size
+)
+{
+  uintptr_t size;
+
+  size = (uintptr_t)&RAM_BASE + (uintptr_t)&RAM_BYTES
+         - (uintptr_t)&__alt_heap_start;
+
+  *work_area_start = (void *)__alt_heap_start;
+  *work_area_size  = size;
+  *heap_start      = BSP_BOOTCARD_HEAP_USES_WORK_AREA;
+  *heap_size       = BSP_BOOTCARD_HEAP_SIZE_DEFAULT;
+}
+

c/src/lib/libbsp/nios2/nios2_iss/startup/bspstart.c

@@ -19,56 +19,6 @@
 #include <string.h>
 
 #include <bsp.h>
-#include <rtems/libio.h>
-#include <rtems/libcsupport.h>
-
-/*
- *  Use the shared implementations of the following routines
- */
-
-extern void bsp_libc_init( void *, uint32_t, int );
-
-#if 0
-extern char         _RAMBase[];
-extern char         _RAMSize[];
-extern char         _WorkspaceBase[];
-extern char         _HeapSize[];
-#else
-extern char __alt_heap_start[];
-#endif
-
-/*
- *  Function:   bsp_pretasking_hook
- *  Created:    95/03/10
- *
- *  Description:
- *      BSP pretasking hook.  Called just before drivers are initialized.
- *      Used to setup libc and install any BSP extensions.
- *
- *  NOTES:
- *      Must not use libc (to do io) from here, since drivers are
- *      not yet initialized.
- *
- */
-
-void bsp_pretasking_hook(void)
-{
-    unsigned long heapStart;
-    unsigned long ramSpace;
-
-    heapStart = (unsigned long)Configuration.work_space_start
-              + rtems_configuration_get_work_space_size();
-
-    if (heapStart & (CPU_ALIGNMENT-1))
-        heapStart = (heapStart + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
-
-    ramSpace = RAM_BASE + RAM_BYTES - heapStart;
-
-    /* TODO */
-    ramSpace -= 16384; /* Space for initial stack, not to be zeroed */
-
-    bsp_libc_init((void *)heapStart, ramSpace, 0);
-}
 
 /*
  *  bsp_start
@@ -78,16 +28,4 @@ void bsp_pretasking_hook(void)
 
 void bsp_start( void )
 {
-  /*
-   *  Need to "allocate" the memory for the RTEMS Workspace and
-   *  tell the RTEMS configuration where it is.  This memory is
-   *  not malloc'ed.  It is just "pulled from the air".
-   */
-
-#if 0
-  Configuration.work_space_start = (void *)_WorkspaceBase;
-#else
-  Configuration.work_space_start = (void *)__alt_heap_start;
-#endif
-
 }