author | chegar |
Thu, 17 Oct 2019 20:54:25 +0100 | |
branch | datagramsocketimpl-branch |
changeset 58679 | 9c3209ff7550 |
parent 58678 | 9cf78a70fa4f |
parent 58015 | dd84de796f2c |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "precompiled.hpp" |
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#include "code/debugInfo.hpp" |
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#include "code/debugInfoRec.hpp" |
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#include "code/nmethod.hpp" |
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#include "memory/universe.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/interfaceSupport.inline.hpp" |
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#include "runtime/jniHandles.inline.hpp" |
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#include "runtime/thread.hpp" |
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// Constructors |
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DebugInfoWriteStream::DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size) |
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: CompressedWriteStream(initial_size) { |
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_recorder = recorder; |
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} |
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// Serializing oops |
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void DebugInfoWriteStream::write_handle(jobject h) { |
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write_int(recorder()->oop_recorder()->find_index(h)); |
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} |
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void DebugInfoWriteStream::write_metadata(Metadata* h) { |
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write_int(recorder()->oop_recorder()->find_index(h)); |
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} |
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oop DebugInfoReadStream::read_oop() { |
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oop o = code()->oop_at(read_int()); |
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assert(oopDesc::is_oop_or_null(o), "oop only"); |
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return o; |
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} |
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ScopeValue* DebugInfoReadStream::read_object_value(bool is_auto_box) { |
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int id = read_int(); |
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#ifdef ASSERT |
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assert(_obj_pool != NULL, "object pool does not exist"); |
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for (int i = _obj_pool->length() - 1; i >= 0; i--) { |
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assert(_obj_pool->at(i)->as_ObjectValue()->id() != id, "should not be read twice"); |
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} |
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#endif |
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ObjectValue* result = is_auto_box ? new AutoBoxObjectValue(id) : new ObjectValue(id); |
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// Cache the object since an object field could reference it. |
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_obj_pool->push(result); |
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result->read_object(this); |
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return result; |
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} |
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ScopeValue* DebugInfoReadStream::get_cached_object() { |
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int id = read_int(); |
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assert(_obj_pool != NULL, "object pool does not exist"); |
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for (int i = _obj_pool->length() - 1; i >= 0; i--) { |
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ObjectValue* ov = _obj_pool->at(i)->as_ObjectValue(); |
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if (ov->id() == id) { |
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return ov; |
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} |
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} |
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ShouldNotReachHere(); |
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return NULL; |
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} |
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// Serializing scope values |
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enum { LOCATION_CODE = 0, CONSTANT_INT_CODE = 1, CONSTANT_OOP_CODE = 2, |
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CONSTANT_LONG_CODE = 3, CONSTANT_DOUBLE_CODE = 4, |
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OBJECT_CODE = 5, OBJECT_ID_CODE = 6, |
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AUTO_BOX_OBJECT_CODE = 7 }; |
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ScopeValue* ScopeValue::read_from(DebugInfoReadStream* stream) { |
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ScopeValue* result = NULL; |
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switch(stream->read_int()) { |
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case LOCATION_CODE: result = new LocationValue(stream); break; |
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case CONSTANT_INT_CODE: result = new ConstantIntValue(stream); break; |
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case CONSTANT_OOP_CODE: result = new ConstantOopReadValue(stream); break; |
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case CONSTANT_LONG_CODE: result = new ConstantLongValue(stream); break; |
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case CONSTANT_DOUBLE_CODE: result = new ConstantDoubleValue(stream); break; |
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case OBJECT_CODE: result = stream->read_object_value(false /*is_auto_box*/); break; |
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case AUTO_BOX_OBJECT_CODE: result = stream->read_object_value(true /*is_auto_box*/); break; |
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case OBJECT_ID_CODE: result = stream->get_cached_object(); break; |
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default: ShouldNotReachHere(); |
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} |
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return result; |
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} |
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// LocationValue |
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LocationValue::LocationValue(DebugInfoReadStream* stream) { |
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_location = Location(stream); |
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} |
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void LocationValue::write_on(DebugInfoWriteStream* stream) { |
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stream->write_int(LOCATION_CODE); |
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location().write_on(stream); |
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} |
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void LocationValue::print_on(outputStream* st) const { |
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location().print_on(st); |
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} |
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// ObjectValue |
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void ObjectValue::set_value(oop value) { |
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_value = Handle(Thread::current(), value); |
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} |
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void ObjectValue::read_object(DebugInfoReadStream* stream) { |
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_klass = read_from(stream); |
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assert(_klass->is_constant_oop(), "should be constant java mirror oop"); |
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int length = stream->read_int(); |
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for (int i = 0; i < length; i++) { |
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ScopeValue* val = read_from(stream); |
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_field_values.append(val); |
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} |
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} |
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void ObjectValue::write_on(DebugInfoWriteStream* stream) { |
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if (_visited) { |
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stream->write_int(OBJECT_ID_CODE); |
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stream->write_int(_id); |
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} else { |
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_visited = true; |
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stream->write_int(is_auto_box() ? AUTO_BOX_OBJECT_CODE : OBJECT_CODE); |
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stream->write_int(_id); |
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_klass->write_on(stream); |
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int length = _field_values.length(); |
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stream->write_int(length); |
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for (int i = 0; i < length; i++) { |
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_field_values.at(i)->write_on(stream); |
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} |
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} |
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} |
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void ObjectValue::print_on(outputStream* st) const { |
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st->print("%s[%d]", is_auto_box() ? "box_obj" : "obj", _id); |
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} |
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void ObjectValue::print_fields_on(outputStream* st) const { |
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#ifndef PRODUCT |
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if (_field_values.length() > 0) { |
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_field_values.at(0)->print_on(st); |
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} |
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for (int i = 1; i < _field_values.length(); i++) { |
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st->print(", "); |
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_field_values.at(i)->print_on(st); |
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} |
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#endif |
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} |
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// ConstantIntValue |
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175 |
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ConstantIntValue::ConstantIntValue(DebugInfoReadStream* stream) { |
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_value = stream->read_signed_int(); |
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} |
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179 |
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void ConstantIntValue::write_on(DebugInfoWriteStream* stream) { |
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stream->write_int(CONSTANT_INT_CODE); |
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stream->write_signed_int(value()); |
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} |
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void ConstantIntValue::print_on(outputStream* st) const { |
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st->print("%d", value()); |
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} |
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// ConstantLongValue |
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190 |
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ConstantLongValue::ConstantLongValue(DebugInfoReadStream* stream) { |
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_value = stream->read_long(); |
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} |
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void ConstantLongValue::write_on(DebugInfoWriteStream* stream) { |
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stream->write_int(CONSTANT_LONG_CODE); |
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stream->write_long(value()); |
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} |
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void ConstantLongValue::print_on(outputStream* st) const { |
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st->print(JLONG_FORMAT, value()); |
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} |
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// ConstantDoubleValue |
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205 |
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ConstantDoubleValue::ConstantDoubleValue(DebugInfoReadStream* stream) { |
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_value = stream->read_double(); |
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} |
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void ConstantDoubleValue::write_on(DebugInfoWriteStream* stream) { |
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stream->write_int(CONSTANT_DOUBLE_CODE); |
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stream->write_double(value()); |
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} |
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void ConstantDoubleValue::print_on(outputStream* st) const { |
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st->print("%f", value()); |
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} |
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// ConstantOopWriteValue |
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void ConstantOopWriteValue::write_on(DebugInfoWriteStream* stream) { |
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#ifdef ASSERT |
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{ |
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// cannot use ThreadInVMfromNative here since in case of JVMCI compiler, |
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// thread is already in VM state. |
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ThreadInVMfromUnknown tiv; |
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assert(JNIHandles::resolve(value()) == NULL || |
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Universe::heap()->is_in(JNIHandles::resolve(value())), |
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"Should be in heap"); |
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} |
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#endif |
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stream->write_int(CONSTANT_OOP_CODE); |
233 |
stream->write_handle(value()); |
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234 |
} |
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void ConstantOopWriteValue::print_on(outputStream* st) const { |
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// using ThreadInVMfromUnknown here since in case of JVMCI compiler, |
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// thread is already in VM state. |
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ThreadInVMfromUnknown tiv; |
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JNIHandles::resolve(value())->print_value_on(st); |
241 |
} |
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243 |
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// ConstantOopReadValue |
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245 |
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ConstantOopReadValue::ConstantOopReadValue(DebugInfoReadStream* stream) { |
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_value = Handle(Thread::current(), stream->read_oop()); |
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assert(_value() == NULL || |
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Universe::heap()->is_in(_value()), "Should be in heap"); |
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} |
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252 |
void ConstantOopReadValue::write_on(DebugInfoWriteStream* stream) { |
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ShouldNotReachHere(); |
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} |
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void ConstantOopReadValue::print_on(outputStream* st) const { |
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if (value()() != NULL) { |
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value()()->print_value_on(st); |
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} else { |
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st->print_cr("NULL"); |
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} |
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} |
263 |
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264 |
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265 |
// MonitorValue |
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266 |
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267 |
MonitorValue::MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated) { |
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268 |
_owner = owner; |
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269 |
_basic_lock = basic_lock; |
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270 |
_eliminated = eliminated; |
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271 |
} |
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272 |
||
273 |
MonitorValue::MonitorValue(DebugInfoReadStream* stream) { |
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274 |
_basic_lock = Location(stream); |
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275 |
_owner = ScopeValue::read_from(stream); |
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276 |
_eliminated = (stream->read_bool() != 0); |
|
277 |
} |
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278 |
||
279 |
void MonitorValue::write_on(DebugInfoWriteStream* stream) { |
|
280 |
_basic_lock.write_on(stream); |
|
281 |
_owner->write_on(stream); |
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282 |
stream->write_bool(_eliminated); |
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283 |
} |
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284 |
||
285 |
#ifndef PRODUCT |
|
286 |
void MonitorValue::print_on(outputStream* st) const { |
|
287 |
st->print("monitor{"); |
|
288 |
owner()->print_on(st); |
|
289 |
st->print(","); |
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290 |
basic_lock().print_on(st); |
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291 |
st->print("}"); |
|
292 |
if (_eliminated) { |
|
293 |
st->print(" (eliminated)"); |
|
294 |
} |
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295 |
} |
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296 |
#endif |