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src/os_cpu/solaris_x86/vm/orderAccess_solaris_x86.inline.hpp@1e9a9d2e6509

src/os_cpu/solaris_x86/vm/orderAccess_solaris_x86.inline.hpp

Thu, 21 Oct 2010 11:55:10 -0700

author
never
date
Thu, 21 Oct 2010 11:55:10 -0700
changeset 2262
1e9a9d2e6509
parent 2066
a6bff45449bc
child 2314
f95d63e2154a
permissions
-rw-r--r--

6970683: improvements to hs_err output
Reviewed-by: kvn, jrose, dholmes, coleenp

     1 /*

     2  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 

    25 // Implementation of class OrderAccess.

    26 

    27 // For Sun Studio - implementation is in solaris_i486.il.

    28 // For gcc - implementation is just below.

    29 extern "C" void _OrderAccess_acquire();

    30 extern "C" void _OrderAccess_fence();

    31 

    32 inline void OrderAccess::loadload()   { acquire(); }

    33 inline void OrderAccess::storestore() { release(); }

    34 inline void OrderAccess::loadstore()  { acquire(); }

    35 inline void OrderAccess::storeload()  { fence(); }

    36 

    37 inline void OrderAccess::acquire() {

    38   _OrderAccess_acquire();

    39 

    40 }

    41 

    42 inline void OrderAccess::release() {

    43   // Avoid hitting the same cache-line from

    44   // different threads.

    45   volatile jint local_dummy = 0;

    46 }

    47 

    48 inline void OrderAccess::fence() {

    49   if (os::is_MP()) {

    50     _OrderAccess_fence();

    51   }

    52 }

    53 

    54 #ifdef _GNU_SOURCE

    55 

    56 extern "C" {

    57   inline void _OrderAccess_acquire() {

    58     volatile intptr_t local_dummy;

    59 #ifdef AMD64

    60     __asm__ volatile ("movq 0(%%rsp), %0" : "=r" (local_dummy) : : "memory");

    61 #else

    62     __asm__ volatile ("movl 0(%%esp),%0" : "=r" (local_dummy) : : "memory");

    63 #endif // AMD64

    64   }

    65   inline void _OrderAccess_fence() {

    66     // Always use locked addl since mfence is sometimes expensive

    67     __asm__ volatile ("lock; addl $0,0(%%esp)" : : : "cc", "memory");

    68   }

    69 

    70 }

    71 

    72 #endif // GNU_SOURCE

    73 

    74 inline jbyte    OrderAccess::load_acquire(volatile jbyte*   p) { return *p; }

    75 inline jshort   OrderAccess::load_acquire(volatile jshort*  p) { return *p; }

    76 inline jint     OrderAccess::load_acquire(volatile jint*    p) { return *p; }

    77 inline jlong    OrderAccess::load_acquire(volatile jlong*   p) { return *p; }

    78 inline jubyte   OrderAccess::load_acquire(volatile jubyte*  p) { return *p; }

    79 inline jushort  OrderAccess::load_acquire(volatile jushort* p) { return *p; }

    80 inline juint    OrderAccess::load_acquire(volatile juint*   p) { return *p; }

    81 inline julong   OrderAccess::load_acquire(volatile julong*  p) { return *p; }

    82 inline jfloat   OrderAccess::load_acquire(volatile jfloat*  p) { return *p; }

    83 inline jdouble  OrderAccess::load_acquire(volatile jdouble* p) { return *p; }

    84 

    85 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t*   p) { return *p; }

    86 inline void*    OrderAccess::load_ptr_acquire(volatile void*       p) { return *(void* volatile *)p; }

    87 inline void*    OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; }

    88 

    89 inline void     OrderAccess::release_store(volatile jbyte*   p, jbyte   v) { *p = v; }

    90 inline void     OrderAccess::release_store(volatile jshort*  p, jshort  v) { *p = v; }

    91 inline void     OrderAccess::release_store(volatile jint*    p, jint    v) { *p = v; }

    92 inline void     OrderAccess::release_store(volatile jlong*   p, jlong   v) { *p = v; }

    93 inline void     OrderAccess::release_store(volatile jubyte*  p, jubyte  v) { *p = v; }

    94 inline void     OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; }

    95 inline void     OrderAccess::release_store(volatile juint*   p, juint   v) { *p = v; }

    96 inline void     OrderAccess::release_store(volatile julong*  p, julong  v) { *p = v; }

    97 inline void     OrderAccess::release_store(volatile jfloat*  p, jfloat  v) { *p = v; }

    98 inline void     OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; }

    99 

   100 inline void     OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; }

   101 inline void     OrderAccess::release_store_ptr(volatile void*     p, void*    v) { *(void* volatile *)p = v; }

   102 

   103 inline void     OrderAccess::store_fence(jbyte*   p, jbyte   v) { *p = v; fence(); }

   104 inline void     OrderAccess::store_fence(jshort*  p, jshort  v) { *p = v; fence(); }

   105 inline void     OrderAccess::store_fence(jint*    p, jint    v) { *p = v; fence(); }

   106 inline void     OrderAccess::store_fence(jlong*   p, jlong   v) { *p = v; fence(); }

   107 inline void     OrderAccess::store_fence(jubyte*  p, jubyte  v) { *p = v; fence(); }

   108 inline void     OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); }

   109 inline void     OrderAccess::store_fence(juint*   p, juint   v) { *p = v; fence(); }

   110 inline void     OrderAccess::store_fence(julong*  p, julong  v) { *p = v; fence(); }

   111 inline void     OrderAccess::store_fence(jfloat*  p, jfloat  v) { *p = v; fence(); }

   112 inline void     OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }

   113 

   114 inline void     OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); }

   115 inline void     OrderAccess::store_ptr_fence(void**    p, void*    v) { *p = v; fence(); }

   116 

   117 inline void     OrderAccess::release_store_fence(volatile jbyte*   p, jbyte   v) { *p = v; fence(); }

   118 inline void     OrderAccess::release_store_fence(volatile jshort*  p, jshort  v) { *p = v; fence(); }

   119 inline void     OrderAccess::release_store_fence(volatile jint*    p, jint    v) { *p = v; fence(); }

   120 inline void     OrderAccess::release_store_fence(volatile jlong*   p, jlong   v) { *p = v; fence(); }

   121 inline void     OrderAccess::release_store_fence(volatile jubyte*  p, jubyte  v) { *p = v; fence(); }

   122 inline void     OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); }

   123 inline void     OrderAccess::release_store_fence(volatile juint*   p, juint   v) { *p = v; fence(); }

   124 inline void     OrderAccess::release_store_fence(volatile julong*  p, julong  v) { *p = v; fence(); }

   125 inline void     OrderAccess::release_store_fence(volatile jfloat*  p, jfloat  v) { *p = v; fence(); }

   126 inline void     OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }

   127 

   128 inline void     OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); }

   129 inline void     OrderAccess::release_store_ptr_fence(volatile void*     p, void*    v) { *(void* volatile *)p = v; fence(); }

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