--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/os/aix/osThread_aix.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2013 SAP SE. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_AIX_VM_OSTHREAD_AIX_HPP
+#define OS_AIX_VM_OSTHREAD_AIX_HPP
+
+ public:
+  typedef pthread_t thread_id_t;
+
+ private:
+  int _thread_type;
+
+ public:
+
+  int thread_type() const {
+    return _thread_type;
+  }
+  void set_thread_type(int type) {
+    _thread_type = type;
+  }
+
+ private:
+
+  // On AIX, we use the pthread id as OSThread::thread_id and keep the kernel thread id
+  // separately for diagnostic purposes.
+  //
+  // Note: this kernel thread id is saved at thread start. Depending on the
+  // AIX scheduling mode, this may not be the current thread id (usually not
+  // a problem though as we run with AIXTHREAD_SCOPE=S).
+  tid_t _kernel_thread_id;
+
+  sigset_t _caller_sigmask; // Caller's signal mask
+
+ public:
+
+  // Methods to save/restore caller's signal mask
+  sigset_t  caller_sigmask() const       { return _caller_sigmask; }
+  void    set_caller_sigmask(sigset_t sigmask)  { _caller_sigmask = sigmask; }
+
+#ifndef PRODUCT
+  // Used for debugging, return a unique integer for each thread.
+  int thread_identifier() const   { return _thread_id; }
+#endif
+#ifdef ASSERT
+  // We expect no reposition failures so kill vm if we get one.
+  //
+  bool valid_reposition_failure() {
+    return false;
+  }
+#endif // ASSERT
+  tid_t kernel_thread_id() const {
+    return _kernel_thread_id;
+  }
+  void set_kernel_thread_id(tid_t tid) {
+    _kernel_thread_id = tid;
+  }
+
+  pthread_t pthread_id() const {
+    // Here: same as OSThread::thread_id()
+    return _thread_id;
+  }
+
+  // ***************************************************************
+  // suspension support.
+  // ***************************************************************
+
+ public:
+  // flags that support signal based suspend/resume on Aix are in a
+  // separate class to avoid confusion with many flags in OSThread that
+  // are used by VM level suspend/resume.
+  os::SuspendResume sr;
+
+  // _ucontext and _siginfo are used by SR_handler() to save thread context,
+  // and they will later be used to walk the stack or reposition thread PC.
+  // If the thread is not suspended in SR_handler() (e.g. self suspend),
+  // the value in _ucontext is meaningless, so we must use the last Java
+  // frame information as the frame. This will mean that for threads
+  // that are parked on a mutex the profiler (and safepoint mechanism)
+  // will see the thread as if it were still in the Java frame. This
+  // not a problem for the profiler since the Java frame is a close
+  // enough result. For the safepoint mechanism when the give it the
+  // Java frame we are not at a point where the safepoint needs the
+  // frame to that accurate (like for a compiled safepoint) since we
+  // should be in a place where we are native and will block ourselves
+  // if we transition.
+ private:
+  void* _siginfo;
+  ucontext_t* _ucontext;
+  int _expanding_stack;                 // non zero if manually expanding stack
+  address _alt_sig_stack;               // address of base of alternate signal stack
+
+ public:
+  void* siginfo() const                   { return _siginfo;  }
+  void set_siginfo(void* ptr)             { _siginfo = ptr;   }
+  ucontext_t* ucontext() const            { return _ucontext; }
+  void set_ucontext(ucontext_t* ptr)      { _ucontext = ptr;  }
+  void set_expanding_stack(void)          { _expanding_stack = 1;  }
+  void clear_expanding_stack(void)        { _expanding_stack = 0;  }
+  int  expanding_stack(void)              { return _expanding_stack;  }
+
+  void set_alt_sig_stack(address val)     { _alt_sig_stack = val; }
+  address alt_sig_stack(void)             { return _alt_sig_stack; }
+
+ private:
+  Monitor* _startThread_lock;     // sync parent and child in thread creation
+
+ public:
+
+  Monitor* startThread_lock() const {
+    return _startThread_lock;
+  }
+
+  // ***************************************************************
+  // Platform dependent initialization and cleanup
+  // ***************************************************************
+
+ private:
+
+  void pd_initialize();
+  void pd_destroy();
+
+ public:
+
+  // The last measured values of cpu timing to prevent the "stale
+  // value return" bug in thread_cpu_time.
+  volatile struct {
+    jlong sys;
+    jlong user;
+  } _last_cpu_times;
+
+#endif // OS_AIX_VM_OSTHREAD_AIX_HPP