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

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

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

Thu, 16 Feb 2012 17:12:49 -0800

author: kvn
date: Thu, 16 Feb 2012 17:12:49 -0800
changeset 3577: 9b8ce46870df
parent 2434: 4fc084dac61e
child 4675: 63e54c37ac64
permissions: -rw-r--r--

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

 /*
  * Copyright (c) 1999, 2011, 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
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_INLINE_HPP
 #define OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_INLINE_HPP
 #include "orderAccess_solaris_x86.inline.hpp"
 #include "runtime/atomic.hpp"
 #include "runtime/os.hpp"
 #include "vm_version_x86.hpp"
 inline void Atomic::store    (jbyte    store_value, jbyte*    dest) { *dest = store_value; }
 inline void Atomic::store    (jshort   store_value, jshort*   dest) { *dest = store_value; }
 inline void Atomic::store    (jint     store_value, jint*     dest) { *dest = store_value; }
 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
 inline void Atomic::store_ptr(void*    store_value, void*     dest) { *(void**)dest = store_value; }
 inline void Atomic::store    (jbyte    store_value, volatile jbyte*    dest) { *dest = store_value; }
 inline void Atomic::store    (jshort   store_value, volatile jshort*   dest) { *dest = store_value; }
 inline void Atomic::store    (jint     store_value, volatile jint*     dest) { *dest = store_value; }
 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
 inline void Atomic::store_ptr(void*    store_value, volatile void*     dest) { *(void* volatile *)dest = store_value; }
 inline void Atomic::inc    (volatile jint*     dest) { (void)add    (1, dest); }
 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); }
 inline void Atomic::inc_ptr(volatile void*     dest) { (void)add_ptr(1, dest); }
 inline void Atomic::dec    (volatile jint*     dest) { (void)add    (-1, dest); }
 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); }
 inline void Atomic::dec_ptr(volatile void*     dest) { (void)add_ptr(-1, dest); }
 // For Sun Studio - implementation is in solaris_x86_[32/64].il.
 // For gcc - implementation is just below.
 // The lock prefix can be omitted for certain instructions on uniprocessors; to
 // facilitate this, os::is_MP() is passed as an additional argument.  64-bit
 // processors are assumed to be multi-threaded and/or multi-core, so the extra
 // argument is unnecessary.
 #ifndef _LP64
 #define IS_MP_DECL() , int is_mp
 #define IS_MP_ARG()  , (int) os::is_MP()
 #else
 #define IS_MP_DECL()
 #define IS_MP_ARG()
 #endif // _LP64
 extern "C" {
   jint _Atomic_add(jint add_value, volatile jint* dest IS_MP_DECL());
   jint _Atomic_xchg(jint exchange_value, volatile jint* dest);
   jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest,
                        jint compare_value IS_MP_DECL());
   jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest,
                              jlong compare_value IS_MP_DECL());
 }
 inline jint     Atomic::add    (jint     add_value, volatile jint*     dest) {
   return _Atomic_add(add_value, dest IS_MP_ARG());
 }
 inline jint     Atomic::xchg       (jint     exchange_value, volatile jint*     dest) {
   return _Atomic_xchg(exchange_value, dest);
 }
 inline jint     Atomic::cmpxchg    (jint     exchange_value, volatile jint*     dest, jint     compare_value) {
   return _Atomic_cmpxchg(exchange_value, dest, compare_value IS_MP_ARG());
 }
 inline jlong    Atomic::cmpxchg    (jlong    exchange_value, volatile jlong*    dest, jlong    compare_value) {
   return _Atomic_cmpxchg_long(exchange_value, dest, compare_value IS_MP_ARG());
 }
 #ifdef AMD64
 inline void Atomic::store    (jlong    store_value, jlong*             dest) { *dest = store_value; }
 inline void Atomic::store    (jlong    store_value, volatile jlong*    dest) { *dest = store_value; }
 extern "C" jlong _Atomic_add_long(jlong add_value, volatile jlong* dest);
 extern "C" jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest);
 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
   return (intptr_t)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest);
 }
 inline void*    Atomic::add_ptr(intptr_t add_value, volatile void*     dest) {
   return (void*)_Atomic_add_long((jlong)add_value, (volatile jlong*)dest);
 }
 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
   return (intptr_t)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest);
 }
 inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {
   return (void*)_Atomic_xchg_long((jlong)exchange_value, (volatile jlong*)dest);
 }
 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
   return (intptr_t)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value);
 }
 inline void*    Atomic::cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value) {
   return (void*)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value);
 }
 inline jlong Atomic::load(volatile jlong* src) { return *src; }
 #else // !AMD64
 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
   return (intptr_t)add((jint)add_value, (volatile jint*)dest);
 }
 inline void*    Atomic::add_ptr(intptr_t add_value, volatile void*     dest) {
   return (void*)add((jint)add_value, (volatile jint*)dest);
 }
 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
   return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest);
 }
 inline void*    Atomic::xchg_ptr(void*    exchange_value, volatile void*     dest) {
   return (void*)xchg((jint)exchange_value, (volatile jint*)dest);
 }
 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
   return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
 }
 inline void*    Atomic::cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value) {
   return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
 }
 extern "C" void _Atomic_move_long(volatile jlong* src, volatile jlong* dst);
 inline jlong Atomic::load(volatile jlong* src) {
   volatile jlong dest;
   _Atomic_move_long(src, &dest);
   return dest;
 }
 inline void Atomic::store(jlong store_value, jlong* dest) {
   _Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest);
 }
 inline void Atomic::store(jlong store_value, volatile jlong* dest) {
   _Atomic_move_long((volatile jlong*)&store_value, dest);
 }
 #endif // AMD64
 #ifdef _GNU_SOURCE
 // Add a lock prefix to an instruction on an MP machine
 #define LOCK_IF_MP(mp) "cmp $0, " #mp "; je 1f; lock; 1: "
 extern "C" {
   inline jint _Atomic_add(jint add_value, volatile jint* dest, int mp) {
     jint addend = add_value;
     __asm__ volatile (  LOCK_IF_MP(%3) "xaddl %0,(%2)"
                     : "=r" (addend)
                     : "0" (addend), "r" (dest), "r" (mp)
                     : "cc", "memory");
     return addend + add_value;
   }
 #ifdef AMD64
   inline jlong _Atomic_add_long(jlong add_value, volatile jlong* dest, int mp) {
     intptr_t addend = add_value;
     __asm__ __volatile__ (LOCK_IF_MP(%3) "xaddq %0,(%2)"
                         : "=r" (addend)
                         : "0" (addend), "r" (dest), "r" (mp)
                         : "cc", "memory");
     return addend + add_value;
   }
   inline jlong _Atomic_xchg_long(jlong exchange_value, volatile jlong* dest) {
     __asm__ __volatile__ ("xchgq (%2),%0"
                         : "=r" (exchange_value)
                         : "0" (exchange_value), "r" (dest)
                         : "memory");
     return exchange_value;
   }
 #endif // AMD64
   inline jint _Atomic_xchg(jint exchange_value, volatile jint* dest) {
     __asm__ __volatile__ ("xchgl (%2),%0"
                           : "=r" (exchange_value)
                         : "0" (exchange_value), "r" (dest)
                         : "memory");
     return exchange_value;
   }
   inline jint _Atomic_cmpxchg(jint exchange_value, volatile jint* dest, jint compare_value, int mp) {
     __asm__ volatile (LOCK_IF_MP(%4) "cmpxchgl %1,(%3)"
                     : "=a" (exchange_value)
                     : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp)
                     : "cc", "memory");
     return exchange_value;
   }
   // This is the interface to the atomic instruction in solaris_i486.s.
   jlong _Atomic_cmpxchg_long_gcc(jlong exchange_value, volatile jlong* dest, jlong compare_value, int mp);
   inline jlong _Atomic_cmpxchg_long(jlong exchange_value, volatile jlong* dest, jlong compare_value, int mp) {
 #ifdef AMD64
     __asm__ __volatile__ (LOCK_IF_MP(%4) "cmpxchgq %1,(%3)"
                         : "=a" (exchange_value)
                         : "r" (exchange_value), "a" (compare_value), "r" (dest), "r" (mp)
                         : "cc", "memory");
     return exchange_value;
 #else
     return _Atomic_cmpxchg_long_gcc(exchange_value, dest, compare_value, os::is_MP());
     #if 0
     // The code below does not work presumably because of the bug in gcc
     // The error message says:
     //   can't find a register in class BREG while reloading asm
     // However I want to save this code and later replace _Atomic_cmpxchg_long_gcc
     // with such inline asm code:
     volatile jlong_accessor evl, cvl, rv;
     evl.long_value = exchange_value;
     cvl.long_value = compare_value;
     int mp = os::is_MP();
     __asm__ volatile ("cmp $0, %%esi\n\t"
        "je 1f \n\t"
        "lock\n\t"
        "1: cmpxchg8b (%%edi)\n\t"
        : "=a"(cvl.words[0]),   "=d"(cvl.words[1])
        : "a"(cvl.words[0]), "d"(cvl.words[1]),
          "b"(evl.words[0]), "c"(evl.words[1]),
          "D"(dest), "S"(mp)
        :  "cc", "memory");
     return cvl.long_value;
     #endif // if 0
 #endif // AMD64
   }
 }
 #undef LOCK_IF_MP
 #endif // _GNU_SOURCE
 #endif // OS_CPU_SOLARIS_X86_VM_ATOMIC_SOLARIS_X86_INLINE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

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

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