jdk8-mips64-public/hotspot: src/os_cpu/solaris_x86/vm/atomic_solaris

7145346: VerifyStackAtCalls is broken
Summary: Replace call_epilog() encoding with macroassembler use. Moved duplicated code to x86.ad. Fixed return_addr() definition.
Reviewed-by: never

     1 /*

     2  * Copyright (c) 1999, 2011, 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  */

    25 #ifndef OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_INLINE_HPP

    26 #define OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_INLINE_HPP

    28 #include "orderAccess_solaris_x86.inline.hpp"

    29 #include "runtime/atomic.hpp"

    30 #include "runtime/os.hpp"

    31 #include "vm_version_x86.hpp"

    33 inline void Atomic::store    (jbyte    store_value, jbyte*    dest) { *dest = store_value; }

    34 inline void Atomic::store    (jshort   store_value, jshort*   dest) { *dest = store_value; }

    35 inline void Atomic::store    (jint     store_value, jint*     dest) { *dest = store_value; }

    38 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }

    39 inline void Atomic::store_ptr(void*    store_value, void*     dest) { *(void**)dest = store_value; }

    41 inline void Atomic::store    (jbyte    store_value, volatile jbyte*    dest) { *dest = store_value; }

    42 inline void Atomic::store    (jshort   store_value, volatile jshort*   dest) { *dest = store_value; }

    43 inline void Atomic::store    (jint     store_value, volatile jint*     dest) { *dest = store_value; }

    44 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }

    45 inline void Atomic::store_ptr(void*    store_value, volatile void*     dest) { *(void* volatile *)dest = store_value; }

    47 inline void Atomic::inc    (volatile jint*     dest) { (void)add    (1, dest); }

    48 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); }

    49 inline void Atomic::inc_ptr(volatile void*     dest) { (void)add_ptr(1, dest); }

    51 inline void Atomic::dec    (volatile jint*     dest) { (void)add    (-1, dest); }

    52 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); }

    53 inline void Atomic::dec_ptr(volatile void*     dest) { (void)add_ptr(-1, dest); }

    55 // For Sun Studio - implementation is in solaris_x86_[32/64].il.

    56 // For gcc - implementation is just below.

    58 // The lock prefix can be omitted for certain instructions on uniprocessors; to

    59 // facilitate this, os::is_MP() is passed as an additional argument.  64-bit

    60 // processors are assumed to be multi-threaded and/or multi-core, so the extra

    61 // argument is unnecessary.

    62 #ifndef _LP64

    63 #define IS_MP_DECL() , int is_mp

    64 #define IS_MP_ARG()  , (int) os::is_MP()

    65 #else

    66 #define IS_MP_DECL()

    67 #define IS_MP_ARG()

    68 #endif // _LP64

    70 extern "C" {

    71   jint _Atomic_add(jint add_value, volatile jint* dest IS_MP_DECL());

    72   jint _Atomic_xchg(jint exchange_value, volatile jint* dest);

    73   jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest,

    74                        jint compare_value IS_MP_DECL());

    75   jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest,

    76                              jlong compare_value IS_MP_DECL());

    77 }

    79 inline jint     Atomic::add    (jint     add_value, volatile jint*     dest) {

    80   return _Atomic_add(add_value, dest IS_MP_ARG());

    81 }

    83 inline jint     Atomic::xchg       (jint     exchange_value, volatile jint*     dest) {

    84   return _Atomic_xchg(exchange_value, dest);

    85 }

    87 inline jint     Atomic::cmpxchg    (jint     exchange_value, volatile jint*     dest, jint     compare_value) {

    88   return _Atomic_cmpxchg(exchange_value, dest, compare_value IS_MP_ARG());

    89 }

    91 inline jlong    Atomic::cmpxchg    (jlong    exchange_value, volatile jlong*    dest, jlong    compare_value) {

    92   return _Atomic_cmpxchg_long(exchange_value, dest, compare_value IS_MP_ARG());

    93 }

    96 #ifdef AMD64

    97 inline void Atomic::store    (jlong    store_value, jlong*             dest) { *dest = store_value; }

    98 inline void Atomic::store    (jlong    store_value, volatile jlong*    dest) { *dest = store_value; }

    99 extern "C" jlong _Atomic_add_long(jlong add_value, volatile jlong* dest);

   100 extern "C" jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest);

   102 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {

   103   return (intptr_t)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest);

   104 }

   106 inline void*    Atomic::add_ptr(intptr_t add_value, volatile void*     dest) {

   107   return (void*)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest);

   108 }

   110 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {

   111   return (intptr_t)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest);

   112 }

   114 inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {

   115   return (void*)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest);

   116 }

   118 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {

   119   return (intptr_t)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value);

   120 }

   122 inline void*    Atomic::cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value) {

   123   return (void*)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value);

   124 }

   126 inline jlong Atomic::load(volatile jlong* src) { return *src; }

   128 #else // !AMD64

   130 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {

   131   return (intptr_t)add((jint)add_value, (volatile jint*)dest);

   132 }

   134 inline void*    Atomic::add_ptr(intptr_t add_value, volatile void*     dest) {

   135   return (void*)add((jint)add_value, (volatile jint*)dest);

   136 }

   138 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {

   139   return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest);

   140 }

   142 inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {

   143   return (void*)xchg((jint)exchange_value, (volatile jint*)dest);

   144 }

   146 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {

   147   return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);

   148 }

   150 inline void*    Atomic::cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value) {

   151   return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);

   152 }

   154 extern "C" void _Atomic_move_long(volatile jlong* src, volatile jlong* dst);

   156 inline jlong Atomic::load(volatile jlong* src) {

   157   volatile jlong dest;

   158   _Atomic_move_long(src, &dest);

   159   return dest;

   160 }

   162 inline void Atomic::store(jlong store_value, jlong* dest) {

   163   _Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest);

   164 }

   166 inline void Atomic::store(jlong store_value, volatile jlong* dest) {

   167   _Atomic_move_long((volatile jlong*)&store_value, dest);

   168 }

   170 #endif // AMD64

   172 #ifdef _GNU_SOURCE

   173 // Add a lock prefix to an instruction on an MP machine

   174 #define LOCK_IF_MP(mp) "cmp $0, " #mp "; je 1f; lock; 1: "

   176 extern "C" {

   177   inline jint _Atomic_add(jint add_value, volatile jint* dest, int mp) {

   178     jint addend = add_value;

   179     __asm__ volatile (  LOCK_IF_MP(%3) "xaddl %0,(%2)"

   180                     : "=r" (addend)

   181                     : "0" (addend), "r" (dest), "r" (mp)

   182                     : "cc", "memory");

   183     return addend + add_value;

   184   }

   186 #ifdef AMD64

   187   inline jlong _Atomic_add_long(jlong add_value, volatile jlong* dest, int mp) {

   188     intptr_t addend = add_value;

   189     __asm__ __volatile__ (LOCK_IF_MP(%3) "xaddq %0,(%2)"

   190                         : "=r" (addend)

   191                         : "0" (addend), "r" (dest), "r" (mp)

   192                         : "cc", "memory");

   193     return addend + add_value;

   194   }

   196   inline jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest) {

   197     __asm__ __volatile__ ("xchgq (%2),%0"

   198                         : "=r" (exchange_value)

   199                         : "0" (exchange_value), "r" (dest)

   200                         : "memory");

   201     return exchange_value;

   202   }

   204 #endif // AMD64

   206   inline jint _Atomic_xchg(jint exchange_value, volatile jint* dest) {

   207     __asm__ __volatile__ ("xchgl (%2),%0"

   208                           : "=r" (exchange_value)

   209                         : "0" (exchange_value), "r" (dest)

   210                         : "memory");

   211     return exchange_value;

   212   }

   214   inline jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest, jint compare_value, int mp) {

   215     __asm__ volatile (LOCK_IF_MP(%4) "cmpxchgl %1,(%3)"

   216                     : "=a" (exchange_value)

   217                     : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp)

   218                     : "cc", "memory");

   219     return exchange_value;

   220   }

   222   // This is the interface to the atomic instruction in solaris_i486.s.

   223   jlong _Atomic_cmpxchg_long_gcc(jlong exchange_value, volatile jlong* dest, jlong compare_value, int mp);

   225   inline jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest, jlong compare_value, int mp) {

   226 #ifdef AMD64

   227     __asm__ __volatile__ (LOCK_IF_MP(%4) "cmpxchgq %1,(%3)"

   228                         : "=a" (exchange_value)

   229                         : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp)

   230                         : "cc", "memory");

   231     return exchange_value;

   232 #else

   233     return _Atomic_cmpxchg_long_gcc(exchange_value, dest, compare_value, os::is_MP());

   235     #if 0

   236     // The code below does not work presumably because of the bug in gcc

   237     // The error message says:

   238     //   can't find a register in class BREG while reloading asm

   239     // However I want to save this code and later replace _Atomic_cmpxchg_long_gcc

   240     // with such inline asm code:

   242     volatile jlong_accessor evl, cvl, rv;

   243     evl.long_value = exchange_value;

   244     cvl.long_value = compare_value;

   245     int mp = os::is_MP();

   247     __asm__ volatile ("cmp $0, %%esi\n\t"

   248        "je 1f \n\t"

   249        "lock\n\t"

   250        "1: cmpxchg8b (%%edi)\n\t"

   251        : "=a"(cvl.words[0]),   "=d"(cvl.words[1])

   252        : "a"(cvl.words[0]), "d"(cvl.words[1]),

   253          "b"(evl.words[0]), "c"(evl.words[1]),

   254          "D"(dest), "S"(mp)

   255        :  "cc", "memory");

   256     return cvl.long_value;

   257     #endif // if 0

   258 #endif // AMD64

   259   }

   260 }

   261 #undef LOCK_IF_MP

   263 #endif // _GNU_SOURCE

   265 #endif // OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_INLINE_HPP

src/os_cpu/solaris_x86/vm/atomic_solaris_x86.inline.hpp@9b8ce46870df

src/os_cpu/solaris_x86/vm/atomic_solaris_x86.inline.hpp

Mercurial > jdk8-mips64-public > hotspot / file revision

src/os_cpu/solaris_x86/vm/atomic_solaris_x86.inline.hpp@9b8ce46870df

src/os_cpu/solaris_x86/vm/atomic_solaris_x86.inline.hpp