| /* |
| * Copyright (c) 2001, 2014, 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. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "runtime/stackValueCollection.hpp" |
| #ifdef TARGET_ARCH_x86 |
| # include "jniTypes_x86.hpp" |
| #endif |
| #ifdef TARGET_ARCH_sparc |
| # include "jniTypes_sparc.hpp" |
| #endif |
| #ifdef TARGET_ARCH_zero |
| # include "jniTypes_zero.hpp" |
| #endif |
| #ifdef TARGET_ARCH_arm |
| # include "jniTypes_arm.hpp" |
| #endif |
| #ifdef TARGET_ARCH_ppc |
| # include "jniTypes_ppc.hpp" |
| #endif |
| |
| PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
| |
| jint StackValueCollection::int_at(int slot) const { |
| intptr_t val = at(slot)->get_int(); |
| jint ival = *((jint*) (&val)); |
| return ival; |
| } |
| |
| jlong StackValueCollection::long_at(int slot) const { |
| #ifdef _LP64 |
| return at(slot+1)->get_int(); |
| #else |
| union { |
| jlong jl; |
| jint array[2]; |
| } value; |
| // Interpreter stack is reversed in memory: |
| // low memory location is in higher java local slot. |
| value.array[0] = at(slot+1)->get_int(); |
| value.array[1] = at(slot )->get_int(); |
| return value.jl; |
| #endif |
| } |
| |
| Handle StackValueCollection::obj_at(int slot) const { |
| return at(slot)->get_obj(); |
| } |
| |
| jfloat StackValueCollection::float_at(int slot) const { |
| intptr_t res = at(slot)->get_int(); |
| return *((jfloat*) (&res)); |
| } |
| |
| jdouble StackValueCollection::double_at(int slot) const { |
| #ifdef _LP64 |
| intptr_t res = at(slot+1)->get_int(); |
| return *((jdouble*) (&res)); |
| #else |
| union { |
| jdouble jd; |
| jint array[2]; |
| } value; |
| // Interpreter stack is reversed in memory: |
| // low memory location is in higher java local slot. |
| value.array[0] = at(slot+1)->get_int(); |
| value.array[1] = at(slot )->get_int(); |
| return value.jd; |
| #endif |
| } |
| |
| void StackValueCollection::set_int_at(int slot, jint value) { |
| intptr_t val; |
| *((jint*) (&val)) = value; |
| at(slot)->set_int(val); |
| } |
| |
| void StackValueCollection::set_long_at(int slot, jlong value) { |
| #ifdef _LP64 |
| at(slot+1)->set_int(value); |
| #else |
| union { |
| jlong jl; |
| jint array[2]; |
| } x; |
| // Interpreter stack is reversed in memory: |
| // low memory location is in higher java local slot. |
| x.jl = value; |
| at(slot+1)->set_int(x.array[0]); |
| at(slot+0)->set_int(x.array[1]); |
| #endif |
| } |
| |
| void StackValueCollection::set_obj_at(int slot, Handle value) { |
| at(slot)->set_obj(value); |
| } |
| |
| void StackValueCollection::set_float_at(int slot, jfloat value) { |
| #ifdef _LP64 |
| union { |
| intptr_t jd; |
| jint array[2]; |
| } val; |
| // Interpreter stores 32 bit floats in first half of 64 bit word. |
| val.array[0] = *(jint*)(&value); |
| val.array[1] = 0; |
| at(slot)->set_int(val.jd); |
| #else |
| at(slot)->set_int(*(jint*)(&value)); |
| #endif |
| } |
| |
| void StackValueCollection::set_double_at(int slot, jdouble value) { |
| #ifdef _LP64 |
| at(slot+1)->set_int(*(intptr_t*)(&value)); |
| #else |
| union { |
| jdouble jd; |
| jint array[2]; |
| } x; |
| // Interpreter stack is reversed in memory: |
| // low memory location is in higher java local slot. |
| x.jd = value; |
| at(slot+1)->set_int(x.array[0]); |
| at(slot+0)->set_int(x.array[1]); |
| #endif |
| } |
| |
| #ifndef PRODUCT |
| void StackValueCollection::print() { |
| for(int index = 0; index < size(); index++) { |
| tty->print("\t %2d ", index); |
| at(index)->print_on(tty); |
| if( at(index )->type() == T_INT && |
| index+1 < size() && |
| at(index+1)->type() == T_INT ) { |
| tty->print(" " INT64_FORMAT " (long)", long_at(index)); |
| tty->cr(); |
| tty->print("\t %.15e (double)", double_at(index)); |
| tty->print(" " PTR64_FORMAT " (longhex)", long_at(index)); |
| } |
| tty->cr(); |
| } |
| } |
| #endif |