--- a/src/share/vm/runtime/os.hpp	Thu Oct 16 10:21:29 2014 +0200
+++ b/src/share/vm/runtime/os.hpp	Wed Oct 15 16:02:50 2014 +0200
@@ -41,9 +41,16 @@
 #ifdef TARGET_OS_FAMILY_windows
 # include "jvm_windows.h"
 #endif
+#ifdef TARGET_OS_FAMILY_aix
+# include "jvm_aix.h"
+# include <setjmp.h>
+#endif
 #ifdef TARGET_OS_FAMILY_bsd
 # include "jvm_bsd.h"
 # include <setjmp.h>
+# ifdef __APPLE__
+#  include <mach/mach_time.h>
+# endif
 #endif
 
 class AgentLibrary;
@@ -433,7 +440,10 @@
   static intx current_thread_id();
   static int current_process_id();
   static int sleep(Thread* thread, jlong ms, bool interruptable);
-  static int naked_sleep();
+  // Short standalone OS sleep suitable for slow path spin loop.
+  // Ignores Thread.interrupt() (so keep it short).
+  // ms = 0, will sleep for the least amount of time allowed by the OS.
+  static void naked_short_sleep(jlong ms);
   static void infinite_sleep(); // never returns, use with CAUTION
   static void yield();        // Yields to all threads with same priority
   enum YieldResult {
@@ -772,6 +782,10 @@
 #ifdef TARGET_OS_FAMILY_windows
 # include "os_windows.hpp"
 #endif
+#ifdef TARGET_OS_FAMILY_aix
+# include "os_aix.hpp"
+# include "os_posix.hpp"
+#endif
 #ifdef TARGET_OS_FAMILY_bsd
 # include "os_posix.hpp"
 # include "os_bsd.hpp"
@@ -800,6 +814,9 @@
 #ifdef TARGET_OS_ARCH_linux_ppc
 # include "os_linux_ppc.hpp"
 #endif
+#ifdef TARGET_OS_ARCH_aix_ppc
+# include "os_aix_ppc.hpp"
+#endif
 #ifdef TARGET_OS_ARCH_bsd_x86
 # include "os_bsd_x86.hpp"
 #endif