jdk8-mips64-public/hotspot: src/share/vm/runtime/stackValueCollection.cpp@b92c45f2bc75

7016023: Enable building ARM and PPC from src/closed repository
Reviewed-by: dholmes, bdelsart

     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

    36 #ifdef TARGET_ARCH_arm

    37 # include "jniTypes_arm.hpp"

    38 #endif

    39 #ifdef TARGET_ARCH_ppc

    40 # include "jniTypes_ppc.hpp"

    41 #endif

    43 jint StackValueCollection::int_at(int slot) const {

    44   intptr_t val =  at(slot)->get_int();

    45   jint ival = *((jint*) (&val));

    46   return ival;

    47 }

    49 jlong StackValueCollection::long_at(int slot) const {

    50 #ifdef _LP64

    51   return at(slot+1)->get_int();

    52 #else

    53   union {

    54     jlong jl;

    55     jint  array[2];

    56   } value;

    57   // Interpreter stack is reversed in memory:

    58   // low memory location is in higher java local slot.

    59   value.array[0] = at(slot+1)->get_int();

    60   value.array[1] = at(slot  )->get_int();

    61   return value.jl;

    62 #endif

    63 }

    65 Handle StackValueCollection::obj_at(int slot) const {

    66   return at(slot)->get_obj();

    67 }

    69 jfloat StackValueCollection::float_at(int slot) const {

    70   intptr_t res = at(slot)->get_int();

    71   return *((jfloat*) (&res));

    72 }

    74 jdouble StackValueCollection::double_at(int slot) const {

    75 #ifdef _LP64

    76   intptr_t res = at(slot+1)->get_int();

    77   return *((jdouble*) (&res));

    78 #else

    79   union {

    80     jdouble jd;

    81     jint    array[2];

    82   } value;

    83   // Interpreter stack is reversed in memory:

    84   // low memory location is in higher java local slot.

    85   value.array[0] = at(slot+1)->get_int();

    86   value.array[1] = at(slot  )->get_int();

    87   return value.jd;

    88 #endif

    89 }

    91 void StackValueCollection::set_int_at(int slot, jint value) {

    92   intptr_t val;

    93   *((jint*) (&val)) = value;

    94   at(slot)->set_int(val);

    95 }

    97 void StackValueCollection::set_long_at(int slot, jlong value) {

    98 #ifdef _LP64

    99   at(slot+1)->set_int(value);

   100 #else

   101   union {

   102     jlong jl;

   103     jint  array[2];

   104   } x;

   105   // Interpreter stack is reversed in memory:

   106   // low memory location is in higher java local slot.

   107   x.jl = value;

   108   at(slot+1)->set_int(x.array[0]);

   109   at(slot+0)->set_int(x.array[1]);

   110 #endif

   111 }

   113 void StackValueCollection::set_obj_at(int slot, Handle value) {

   114   at(slot)->set_obj(value);

   115 }

   117 void StackValueCollection::set_float_at(int slot, jfloat value) {

   118 #ifdef _LP64

   119   union {

   120     intptr_t jd;

   121     jint    array[2];

   122   } val;

   123   // Interpreter stores 32 bit floats in first half of 64 bit word.

   124   val.array[0] = *(jint*)(&value);

   125   val.array[1] = 0;

   126   at(slot)->set_int(val.jd);

   127 #else

   128   at(slot)->set_int(*(jint*)(&value));

   129 #endif

   130 }

   132 void StackValueCollection::set_double_at(int slot, jdouble value) {

   133 #ifdef _LP64

   134   at(slot+1)->set_int(*(intptr_t*)(&value));

   135 #else

   136   union {

   137     jdouble jd;

   138     jint    array[2];

   139   } x;

   140   // Interpreter stack is reversed in memory:

   141   // low memory location is in higher java local slot.

   142   x.jd = value;

   143   at(slot+1)->set_int(x.array[0]);

   144   at(slot+0)->set_int(x.array[1]);

   145 #endif

   146 }

   148 #ifndef PRODUCT

   149 void StackValueCollection::print() {

   150   for(int index = 0; index < size(); index++) {

   151     tty->print("\t  %2d ", index);

   152     at(index)->print_on(tty);

   153     if( at(index  )->type() == T_INT &&

   154         index+1 < size() &&

   155         at(index+1)->type() == T_INT ) {

   156       tty->print("  " INT64_FORMAT " (long)", long_at(index));

   157       tty->cr();

   158       tty->print("\t     %.15e (double)", double_at(index));

   159       tty->print("  " PTR64_FORMAT " (longhex)", long_at(index));

   160     }

   161     tty->cr();

   162   }

   163 }

   164 #endif

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