2007-12-17 Joel Sherrill <joel.sherrill@oarcorp.com>

	* rtems/score/cpu.h: Add _CPU_Context_Get_SP() for stack check utility.

1 files changed, 8 insertions, 0 deletions

diff --git a/cpukit/score/cpu/no_cpu/rtems/score/cpu.h b/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
index 97072b4b62..d175511616 100644
--- a/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
+++ b/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
@@ -460,8 +460,16 @@ typedef struct {
      *  registers that need to be saved at a context switch.
      */
     uint32_t   some_system_register;
+
+    /** This field is a hint that a port will have a register that
+     *  is the stack pointer.
+     */
+    uint32_t   stack_pointer;
 } Context_Control;
 
+#define _CPU_Context_Get_SP( _context ) \
+  (_context)->stack_pointer
+
 /**
  *  @ingroup CPUContext Management
  *  This defines the complete set of floating point registers that must