From 5b5dd1c8736322092154362df62a8179f5a4c770 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Sat, 10 Oct 2009 21:24:15 +0000
Subject: 2009-10-10	Joel Sherrill <joel.sherrill@oarcorp.com>

	* shared/bspgetworkarea.c: Add debug prints of memory information.
---
 c/src/lib/libbsp/sparc/ChangeLog               |  4 ++++
 c/src/lib/libbsp/sparc/shared/bspgetworkarea.c | 32 ++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

(limited to 'c')

diff --git a/c/src/lib/libbsp/sparc/ChangeLog b/c/src/lib/libbsp/sparc/ChangeLog
index 2d901a8bd7..dee76a0f6c 100644
--- a/c/src/lib/libbsp/sparc/ChangeLog
+++ b/c/src/lib/libbsp/sparc/ChangeLog
@@ -1,3 +1,7 @@
+2009-10-10	Joel Sherrill <joel.sherrill@oarcorp.com>
+
+	* shared/bspgetworkarea.c: Add debug prints of memory information.
+
 2009-09-29	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* shared/include/pci.h: Add prototypes for BusCountPCI(void),
diff --git a/c/src/lib/libbsp/sparc/shared/bspgetworkarea.c b/c/src/lib/libbsp/sparc/shared/bspgetworkarea.c
index 7b6cf76d7b..d4cd779267 100644
--- a/c/src/lib/libbsp/sparc/shared/bspgetworkarea.c
+++ b/c/src/lib/libbsp/sparc/shared/bspgetworkarea.c
@@ -12,8 +12,12 @@
  *  $Id$
  */
 
+/* #define BSP_GET_WORK_AREA_DEBUG */
 #include <bsp.h>
 #include <bsp/bootcard.h>
+#ifdef BSP_GET_WORK_AREA_DEBUG
+  #include <rtems/bspIo.h>
+#endif
 
 /* Tells us where to put the workspace in case remote debugger is present.  */
 extern uint32_t rdb_start;
@@ -37,4 +41,32 @@ void bsp_get_work_area(
   *work_area_size       = (void *)rdb_start - (void *)&end - STACK_SIZE;
   *heap_start = BSP_BOOTCARD_HEAP_USES_WORK_AREA;
   *heap_size = BSP_BOOTCARD_HEAP_SIZE_DEFAULT;
+
+  /*
+   *  The following may be helpful in debugging what goes wrong when
+   *  you are allocating the Work Area in a new BSP.
+   */
+  #ifdef BSP_GET_WORK_AREA_DEBUG
+    { 
+      void *sp = __builtin_frame_address(0);
+      void *end = *work_area_start + *work_area_size;
+      printk(
+        "work_area_start = 0x%p\n"
+        "work_area_size = %d 0x%08x\n"
+        "end = 0x%p\n"
+        "heap_start = 0x%p\n"
+        "heap_size = %d\n"
+        "current stack pointer = 0x%p%s\n",
+        *work_area_start,
+        *work_area_size,  /* decimal */
+        *work_area_size,  /* hexadecimal */
+        end,
+        *heap_start,
+        *heap_size,
+        sp,
+        ((sp >= *work_area_start && sp <= end) ? " OVERLAPS!" : "")
+     );
+     printk( "rdb_start = 0x%08x\n", rdb_start );
+   }
+ #endif
 }
-- 
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