src/share/vm/runtime/stackValueCollection.cpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 1907
c18cbe5936b8
child 2508
b92c45f2bc75
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     1 /*
     2  * Copyright (c) 2001, 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  */
    25 #include "precompiled.hpp"
    26 #include "runtime/stackValueCollection.hpp"
    27 #ifdef TARGET_ARCH_x86
    28 # include "jniTypes_x86.hpp"
    29 #endif
    30 #ifdef TARGET_ARCH_sparc
    31 # include "jniTypes_sparc.hpp"
    32 #endif
    33 #ifdef TARGET_ARCH_zero
    34 # include "jniTypes_zero.hpp"
    35 #endif
    37 jint StackValueCollection::int_at(int slot) const {
    38   intptr_t val =  at(slot)->get_int();
    39   jint ival = *((jint*) (&val));
    40   return ival;
    41 }
    43 jlong StackValueCollection::long_at(int slot) const {
    44 #ifdef _LP64
    45   return at(slot+1)->get_int();
    46 #else
    47   union {
    48     jlong jl;
    49     jint  array[2];
    50   } value;
    51   // Interpreter stack is reversed in memory:
    52   // low memory location is in higher java local slot.
    53   value.array[0] = at(slot+1)->get_int();
    54   value.array[1] = at(slot  )->get_int();
    55   return value.jl;
    56 #endif
    57 }
    59 Handle StackValueCollection::obj_at(int slot) const {
    60   return at(slot)->get_obj();
    61 }
    63 jfloat StackValueCollection::float_at(int slot) const {
    64   intptr_t res = at(slot)->get_int();
    65   return *((jfloat*) (&res));
    66 }
    68 jdouble StackValueCollection::double_at(int slot) const {
    69 #ifdef _LP64
    70   intptr_t res = at(slot+1)->get_int();
    71   return *((jdouble*) (&res));
    72 #else
    73   union {
    74     jdouble jd;
    75     jint    array[2];
    76   } value;
    77   // Interpreter stack is reversed in memory:
    78   // low memory location is in higher java local slot.
    79   value.array[0] = at(slot+1)->get_int();
    80   value.array[1] = at(slot  )->get_int();
    81   return value.jd;
    82 #endif
    83 }
    85 void StackValueCollection::set_int_at(int slot, jint value) {
    86   intptr_t val;
    87   *((jint*) (&val)) = value;
    88   at(slot)->set_int(val);
    89 }
    91 void StackValueCollection::set_long_at(int slot, jlong value) {
    92 #ifdef _LP64
    93   at(slot+1)->set_int(value);
    94 #else
    95   union {
    96     jlong jl;
    97     jint  array[2];
    98   } x;
    99   // Interpreter stack is reversed in memory:
   100   // low memory location is in higher java local slot.
   101   x.jl = value;
   102   at(slot+1)->set_int(x.array[0]);
   103   at(slot+0)->set_int(x.array[1]);
   104 #endif
   105 }
   107 void StackValueCollection::set_obj_at(int slot, Handle value) {
   108   at(slot)->set_obj(value);
   109 }
   111 void StackValueCollection::set_float_at(int slot, jfloat value) {
   112 #ifdef _LP64
   113   union {
   114     intptr_t jd;
   115     jint    array[2];
   116   } val;
   117   // Interpreter stores 32 bit floats in first half of 64 bit word.
   118   val.array[0] = *(jint*)(&value);
   119   val.array[1] = 0;
   120   at(slot)->set_int(val.jd);
   121 #else
   122   at(slot)->set_int(*(jint*)(&value));
   123 #endif
   124 }
   126 void StackValueCollection::set_double_at(int slot, jdouble value) {
   127 #ifdef _LP64
   128   at(slot+1)->set_int(*(intptr_t*)(&value));
   129 #else
   130   union {
   131     jdouble jd;
   132     jint    array[2];
   133   } x;
   134   // Interpreter stack is reversed in memory:
   135   // low memory location is in higher java local slot.
   136   x.jd = value;
   137   at(slot+1)->set_int(x.array[0]);
   138   at(slot+0)->set_int(x.array[1]);
   139 #endif
   140 }
   142 #ifndef PRODUCT
   143 void StackValueCollection::print() {
   144   for(int index = 0; index < size(); index++) {
   145     tty->print("\t  %2d ", index);
   146     at(index)->print_on(tty);
   147     if( at(index  )->type() == T_INT &&
   148         index+1 < size() &&
   149         at(index+1)->type() == T_INT ) {
   150       tty->print("  " INT64_FORMAT " (long)", long_at(index));
   151       tty->cr();
   152       tty->print("\t     %.15e (double)", double_at(index));
   153       tty->print("  " PTR64_FORMAT " (longhex)", long_at(index));
   154     }
   155     tty->cr();
   156   }
   157 }
   158 #endif

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