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comparison: src/share/vm/runtime/stackValueCollection.cpp
src/share/vm/runtime/stackValueCollection.cpp
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| 1 /* | |
| 2 * Copyright (c) 2001, 2014, 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 #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 | |
| 42 | |
| 43 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC | |
| 44 | |
| 45 jint StackValueCollection::int_at(int slot) const { | |
| 46 intptr_t val = at(slot)->get_int(); | |
| 47 jint ival = *((jint*) (&val)); | |
| 48 return ival; | |
| 49 } | |
| 50 | |
| 51 jlong StackValueCollection::long_at(int slot) const { | |
| 52 #ifdef _LP64 | |
| 53 return at(slot+1)->get_int(); | |
| 54 #else | |
| 55 union { | |
| 56 jlong jl; | |
| 57 jint array[2]; | |
| 58 } value; | |
| 59 // Interpreter stack is reversed in memory: | |
| 60 // low memory location is in higher java local slot. | |
| 61 value.array[0] = at(slot+1)->get_int(); | |
| 62 value.array[1] = at(slot )->get_int(); | |
| 63 return value.jl; | |
| 64 #endif | |
| 65 } | |
| 66 | |
| 67 Handle StackValueCollection::obj_at(int slot) const { | |
| 68 return at(slot)->get_obj(); | |
| 69 } | |
| 70 | |
| 71 jfloat StackValueCollection::float_at(int slot) const { | |
| 72 intptr_t res = at(slot)->get_int(); | |
| 73 return *((jfloat*) (&res)); | |
| 74 } | |
| 75 | |
| 76 jdouble StackValueCollection::double_at(int slot) const { | |
| 77 #ifdef _LP64 | |
| 78 intptr_t res = at(slot+1)->get_int(); | |
| 79 return *((jdouble*) (&res)); | |
| 80 #else | |
| 81 union { | |
| 82 jdouble jd; | |
| 83 jint array[2]; | |
| 84 } value; | |
| 85 // Interpreter stack is reversed in memory: | |
| 86 // low memory location is in higher java local slot. | |
| 87 value.array[0] = at(slot+1)->get_int(); | |
| 88 value.array[1] = at(slot )->get_int(); | |
| 89 return value.jd; | |
| 90 #endif | |
| 91 } | |
| 92 | |
| 93 void StackValueCollection::set_int_at(int slot, jint value) { | |
| 94 intptr_t val; | |
| 95 *((jint*) (&val)) = value; | |
| 96 at(slot)->set_int(val); | |
| 97 } | |
| 98 | |
| 99 void StackValueCollection::set_long_at(int slot, jlong value) { | |
| 100 #ifdef _LP64 | |
| 101 at(slot+1)->set_int(value); | |
| 102 #else | |
| 103 union { | |
| 104 jlong jl; | |
| 105 jint array[2]; | |
| 106 } x; | |
| 107 // Interpreter stack is reversed in memory: | |
| 108 // low memory location is in higher java local slot. | |
| 109 x.jl = value; | |
| 110 at(slot+1)->set_int(x.array[0]); | |
| 111 at(slot+0)->set_int(x.array[1]); | |
| 112 #endif | |
| 113 } | |
| 114 | |
| 115 void StackValueCollection::set_obj_at(int slot, Handle value) { | |
| 116 at(slot)->set_obj(value); | |
| 117 } | |
| 118 | |
| 119 void StackValueCollection::set_float_at(int slot, jfloat value) { | |
| 120 #ifdef _LP64 | |
| 121 union { | |
| 122 intptr_t jd; | |
| 123 jint array[2]; | |
| 124 } val; | |
| 125 // Interpreter stores 32 bit floats in first half of 64 bit word. | |
| 126 val.array[0] = *(jint*)(&value); | |
| 127 val.array[1] = 0; | |
| 128 at(slot)->set_int(val.jd); | |
| 129 #else | |
| 130 at(slot)->set_int(*(jint*)(&value)); | |
| 131 #endif | |
| 132 } | |
| 133 | |
| 134 void StackValueCollection::set_double_at(int slot, jdouble value) { | |
| 135 #ifdef _LP64 | |
| 136 at(slot+1)->set_int(*(intptr_t*)(&value)); | |
| 137 #else | |
| 138 union { | |
| 139 jdouble jd; | |
| 140 jint array[2]; | |
| 141 } x; | |
| 142 // Interpreter stack is reversed in memory: | |
| 143 // low memory location is in higher java local slot. | |
| 144 x.jd = value; | |
| 145 at(slot+1)->set_int(x.array[0]); | |
| 146 at(slot+0)->set_int(x.array[1]); | |
| 147 #endif | |
| 148 } | |
| 149 | |
| 150 #ifndef PRODUCT | |
| 151 void StackValueCollection::print() { | |
| 152 for(int index = 0; index < size(); index++) { | |
| 153 tty->print("\t %2d ", index); | |
| 154 at(index)->print_on(tty); | |
| 155 if( at(index )->type() == T_INT && | |
| 156 index+1 < size() && | |
| 157 at(index+1)->type() == T_INT ) { | |
| 158 tty->print(" " INT64_FORMAT " (long)", long_at(index)); | |
| 159 tty->cr(); | |
| 160 tty->print("\t %.15e (double)", double_at(index)); | |
| 161 tty->print(" " PTR64_FORMAT " (longhex)", long_at(index)); | |
| 162 } | |
| 163 tty->cr(); | |
| 164 } | |
| 165 } | |
| 166 #endif |
