From d8d68e917c3e9fd938711e046d862c621f51d147 Mon Sep 17 00:00:00 2001
From: Richard Barry <ribarry@amazon.com>
Date: Mon, 16 Apr 2012 18:33:32 +0000
Subject: [PATCH] Set the last return address at the bottom of the stack to 0
 in the RX600 ports to prevent E2Studio from attempting to dereference the
 0xdeadbeef pointer.

---
 Source/portable/GCC/RX600/port.c     | 2 +-
 Source/portable/IAR/RX600/port.c     | 2 +-
 Source/portable/Renesas/RX200/port.c | 4 ++--
 Source/portable/Renesas/RX600/port.c | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Source/portable/GCC/RX600/port.c b/Source/portable/GCC/RX600/port.c
index 284fa56a12..5f0ef46fd4 100644
--- a/Source/portable/GCC/RX600/port.c
+++ b/Source/portable/GCC/RX600/port.c
@@ -113,7 +113,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
 {
 	/* R0 is not included as it is the stack pointer. */
 	
-	*pxTopOfStack = 0xdeadbeef;
+	*pxTopOfStack = 0x00;
 	pxTopOfStack--;
  	*pxTopOfStack = portINITIAL_PSW;
 	pxTopOfStack--;
diff --git a/Source/portable/IAR/RX600/port.c b/Source/portable/IAR/RX600/port.c
index e70dbeef25..4aeb7130b8 100644
--- a/Source/portable/IAR/RX600/port.c
+++ b/Source/portable/IAR/RX600/port.c
@@ -99,7 +99,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
 {
 	/* R0 is not included as it is the stack pointer. */
 	
-	*pxTopOfStack = 0xdeadbeef;
+	*pxTopOfStack = 0x00;
 	pxTopOfStack--;
  	*pxTopOfStack = portINITIAL_PSW;
 	pxTopOfStack--;
diff --git a/Source/portable/Renesas/RX200/port.c b/Source/portable/Renesas/RX200/port.c
index bfb6cc3f6f..4aa61409e8 100644
--- a/Source/portable/Renesas/RX200/port.c
+++ b/Source/portable/Renesas/RX200/port.c
@@ -118,9 +118,9 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
 {
 	/* R0 is not included as it is the stack pointer. */
 	
-	*pxTopOfStack = 0xdeadbeef;
+	*pxTopOfStack = 0x00;
 	pxTopOfStack--;
-    *pxTopOfStack = 0xdeadbeef;
+    *pxTopOfStack = 0x00;
 	pxTopOfStack--;
  	*pxTopOfStack = portINITIAL_PSW;
 	pxTopOfStack--;
diff --git a/Source/portable/Renesas/RX600/port.c b/Source/portable/Renesas/RX600/port.c
index b486175170..eca770535e 100644
--- a/Source/portable/Renesas/RX600/port.c
+++ b/Source/portable/Renesas/RX600/port.c
@@ -119,7 +119,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
 {
 	/* R0 is not included as it is the stack pointer. */
 	
-	*pxTopOfStack = 0xdeadbeef;
+	*pxTopOfStack = 0x00;
 	pxTopOfStack--;
  	*pxTopOfStack = portINITIAL_PSW;
 	pxTopOfStack--;