diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index d462f2f0e23..19cefb23845 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,11 @@
+2015-11-18  Ed Falis  <falis@adacore.com>
+
+	* s-soflin.adb, s-stchop-vxworks.adb: Code clean ups.
+
+2015-11-18  Gary Dismukes  <dismukes@adacore.com>
+
+	* bcheck.adb: Minor editorial changes.
+
 2015-11-18  Arnaud Charlet  <charlet@adacore.com>
 
 	* interfac.ads (Unsigned_24): New type.
diff --git a/gcc/ada/bcheck.adb b/gcc/ada/bcheck.adb
index 72a2cbd58a8..8f00ea299e8 100644
--- a/gcc/ada/bcheck.adb
+++ b/gcc/ada/bcheck.adb
@@ -453,7 +453,7 @@ package body Bcheck is
    --    2. The with'ed unit was compiled with dynamic elaboration checks
    --    3. The with'ed unit has pragma Preelaborate or Pure
    --    4. It is an internal GNAT unit (including children of GNAT)
-   --    5. It is an interface of a Stand-Aline Library
+   --    5. It is an interface of a Stand-Alone Library
 
    procedure Check_Consistent_Dynamic_Elaboration_Checking is
    begin
diff --git a/gcc/ada/s-soflin.adb b/gcc/ada/s-soflin.adb
index b3efac83c47..9158a92dccb 100644
--- a/gcc/ada/s-soflin.adb
+++ b/gcc/ada/s-soflin.adb
@@ -49,6 +49,12 @@ package body System.Soft_Links is
    NT_TSD : TSD;
    --  Note: we rely on the default initialization of NT_TSD
 
+   --  Needed for Vx6Cert (Vx653mc) GOS cert and ravenscar-cert runtimes,
+   --  VxMILS cert, ravenscar-cert and full runtimes, Vx 5 default runtime
+   Stack_Limit : aliased System.Address;
+
+   pragma Export (C, Stack_Limit, "__gnat_stack_limit");
+
    --------------------
    -- Abort_Defer_NT --
    --------------------
diff --git a/gcc/ada/s-stchop-vxworks.adb b/gcc/ada/s-stchop-vxworks.adb
index 24de94d91af..53f6c457c02 100644
--- a/gcc/ada/s-stchop-vxworks.adb
+++ b/gcc/ada/s-stchop-vxworks.adb
@@ -60,10 +60,9 @@ package body System.Stack_Checking.Operations is
    --  VxWorks MILS includes the necessary routine in taskLib, so nothing
    --  special needs to be done there.
 
-   Stack_Limit : Address :=
-                   Boolean'Pos (Stack_Grows_Down) * Address'First
-                   + Boolean'Pos (not Stack_Grows_Down) * Address'Last;
-   pragma Export (C, Stack_Limit, "__gnat_stack_limit");
+   Stack_Limit : Address;
+
+   pragma Import (C, Stack_Limit, "__gnat_stack_limit");
 
    --  Stack_Limit contains the limit of the stack. This variable is later made
    --  a task variable (by calling taskVarAdd) and then correctly set to the
@@ -91,7 +90,6 @@ package body System.Stack_Checking.Operations is
 
    procedure Initialize_Stack_Limit is
    begin
-      --  For the environment task
 
       Set_Stack_Limit_For_Current_Task;
 
@@ -126,6 +124,7 @@ package body System.Stack_Checking.Operations is
       Limit : System.Address;
 
    begin
+
       --  Get stack bounds from VxWorks
 
       Get_Stack_Info (Stack_Info'Access);
@@ -141,6 +140,6 @@ package body System.Stack_Checking.Operations is
       end if;
 
       Stack_Limit := Limit;
-   end Set_Stack_Limit_For_Current_Task;
 
+   end Set_Stack_Limit_For_Current_Task;
 end System.Stack_Checking.Operations;