view src/cpu/x86/vm/registerMap_x86.hpp @ 17716:cdb71841f4bc

6498581: ThreadInterruptTest3 produces wrong output on Windows Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set. Reviewed-by: acorn, kvn Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
author minqi
date Wed, 26 Feb 2014 15:20:41 -0800
parents f95d63e2154a
children a560c9b81f0f
line wrap: on
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/*
 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. 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
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 */

#ifndef CPU_X86_VM_REGISTERMAP_X86_HPP
#define CPU_X86_VM_REGISTERMAP_X86_HPP

// machine-dependent implemention for register maps
  friend class frame;

 private:
  // This is the hook for finding a register in an "well-known" location,
  // such as a register block of a predetermined format.
  // Since there is none, we just return NULL.
  // See registerMap_sparc.hpp for an example of grabbing registers
  // from register save areas of a standard layout.
   address pd_location(VMReg reg) const {return NULL;}

  // no PD state to clear or copy:
  void pd_clear() {}
  void pd_initialize() {}
  void pd_initialize_from(const RegisterMap* map) {}

#endif // CPU_X86_VM_REGISTERMAP_X86_HPP