Bug 453341 - Allow stack checking to be suppressed per-function, r=dmandelin sr=jst

js/src/xpconnect/src/xpcwrappednative.cpp

@@ -1889,7 +1889,7 @@ GetInterfaceTypeFromParam(XPCCallContext& ccx,
 /***************************************************************************/
 
 // static
-JSBool
+NS_SUPPRESS_STACK_CHECK JSBool
 XPCWrappedNative::CallMethod(XPCCallContext& ccx,
                              CallMode mode /*= CALL_METHOD */)
 {

xpcom/analysis/stack.js

@@ -175,6 +175,9 @@ function process_tree(fndecl)
     if (opnew != null)
       warning("operator new not followed by an assignment", getLocation());
   }
+
+  if (hasAttribute(dehydra_convert(fndecl), 'NS_suppress_stackcheck'))
+    return;
   
   let tmap = new Map();
   walk_tree(DECL_SAVED_TREE(fndecl), findconstructors, tmap);

xpcom/base/nscore.h

@@ -491,10 +491,12 @@ typedef PRUint32 nsrefcnt;
 #ifdef NS_STATIC_CHECKING
 #define NS_STACK_CLASS __attribute__((user("NS_stack")))
 #define NS_OKONHEAP    __attribute__((user("NS_okonheap")))
+#define NS_SUPRESS_STACK_CHECK __attribute__((user("NS_suppress_stackcheck")))
 #define NS_FINAL_CLASS __attribute__((user("NS_final")))
 #else
 #define NS_STACK_CLASS
 #define NS_OKONHEAP
+#define NS_SUPPRESS_STACK_CHECK
 #define NS_FINAL_CLASS
 #endif