Index: kernel/arch/mips32/include/context.h
===================================================================
--- kernel/arch/mips32/include/context.h	(revision 398e33bee64544f3eb5e421c524d9e59c394481d)
+++ kernel/arch/mips32/include/context.h	(revision d9faae914207b40d4451fcb520ca187b3b8558bf)
@@ -42,5 +42,5 @@
  * Put one item onto the stack to support get_stack_base() and align it up.
  */
-#define SP_DELTA  (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
+#define SP_DELTA  (ABI_STACK_FRAME + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
 
 #ifndef __ASM__
Index: kernel/arch/mips32/include/stack.h
===================================================================
--- kernel/arch/mips32/include/stack.h	(revision 398e33bee64544f3eb5e421c524d9e59c394481d)
+++ kernel/arch/mips32/include/stack.h	(revision d9faae914207b40d4451fcb520ca187b3b8558bf)
@@ -27,5 +27,5 @@
  */
 
-/** @addtogroup mips32	
+/** @addtogroup mips32
  * @{
  */
@@ -36,6 +36,7 @@
 #define KERN_mips32_STACK_H_
 
-#define STACK_ITEM_SIZE		4
-#define STACK_ALIGNMENT		8
+#define STACK_ITEM_SIZE  4
+#define STACK_ALIGNMENT  8
+#define ABI_STACK_FRAME  32
 
 #endif