src/os_cpu/bsd_zero/vm/os_bsd_zero.hpp

rev 13032 : [mq]: atomic_copy64

*** 1,7 ****
  /*
!  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright 2007, 2008, 2010 Red Hat, Inc.
   * 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
--- 1,7 ----
  /*
!  * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
   * Copyright 2007, 2008, 2010 Red Hat, Inc.
   * 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
*** 33,43 ****
    // Used to register dynamic code cache area with the OS
    // Note: Currently only used in 64 bit Windows implementations
    static bool register_code_area(char *low, char *high) { return true; }
  
    // Atomically copy 64 bits of data
!   static void atomic_copy64(volatile void *src, volatile void *dst) {
  #if defined(PPC32)
      double tmp;
      asm volatile ("lfd  %0, 0(%1)\n"
                    "stfd %0, 0(%2)\n"
                    : "=f"(tmp)
--- 33,43 ----
    // Used to register dynamic code cache area with the OS
    // Note: Currently only used in 64 bit Windows implementations
    static bool register_code_area(char *low, char *high) { return true; }
  
    // Atomically copy 64 bits of data
!   static void atomic_copy64(const volatile void *src, volatile void *dst) {
  #if defined(PPC32)
      double tmp;
      asm volatile ("lfd  %0, 0(%1)\n"
                    "stfd %0, 0(%2)\n"
                    : "=f"(tmp)
*** 47,56 ****
      asm volatile ("ld  %0, 0(%1)\n"
                    "std %0, 0(%2)\n"
                    : "=r"(tmp)
                    : "a"(src), "a"(dst));
  #else
!     *(jlong *) dst = *(jlong *) src;
  #endif
    }
  
  #endif // OS_CPU_BSD_ZERO_VM_OS_BSD_ZERO_HPP
--- 47,56 ----
      asm volatile ("ld  %0, 0(%1)\n"
                    "std %0, 0(%2)\n"
                    : "=r"(tmp)
                    : "a"(src), "a"(dst));
  #else
!     *(jlong *) dst = *(const jlong *) src;
  #endif
    }
  
  #endif // OS_CPU_BSD_ZERO_VM_OS_BSD_ZERO_HPP