ARM: Enable the subnormal floats on QNX.

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4713 matching lines @@
 
   /**
    * Optional notification that a context has been disposed. V8 uses
    * these notifications to guide the GC heuristic. Returns the number
    * of context disposals - including this one - since the last time
    * V8 had a chance to clean up.
    */
   static int ContextDisposedNotification();
 
   /**
+   * Performs a per-thread setup. The embedder should invoke this method
+   * in all threads (including the main thread) before V8 is initialized.
+   *
+   * Currently, this method enables the subnormal float support on QNX/ARM.
+   * It is a no-op on all the other platforms.
+   */
+  static void PerThreadSetUp();

[jochen (gone - plz use gerrit), 2014/01/22 11:26:20]

I'd prefer a name of the form Verb+Action, e.g. PerformPerThreadSetup()

+
+  /**
    * Initialize the ICU library bundled with V8. The embedder should only
    * invoke this method when using the bundled ICU. Returns true on success.
    */
   static bool InitializeICU();
 
   /**
    * Sets the v8::Platform to use. This should be invoked before V8 is
    * initialized.
    */
   static void InitializePlatform(Platform* platform);
@@ skipping 1684 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_