Wed, 27 Apr 2016 01:25:04 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | #include "precompiled.hpp" |
aoqi@0 | 26 | #include "code/debugInfo.hpp" |
aoqi@0 | 27 | #include "code/debugInfoRec.hpp" |
aoqi@0 | 28 | #include "code/nmethod.hpp" |
aoqi@0 | 29 | #include "runtime/handles.inline.hpp" |
aoqi@0 | 30 | |
aoqi@0 | 31 | PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
aoqi@0 | 32 | |
aoqi@0 | 33 | // Constructors |
aoqi@0 | 34 | |
aoqi@0 | 35 | DebugInfoWriteStream::DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size) |
aoqi@0 | 36 | : CompressedWriteStream(initial_size) { |
aoqi@0 | 37 | _recorder = recorder; |
aoqi@0 | 38 | } |
aoqi@0 | 39 | |
aoqi@0 | 40 | // Serializing oops |
aoqi@0 | 41 | |
aoqi@0 | 42 | void DebugInfoWriteStream::write_handle(jobject h) { |
aoqi@0 | 43 | write_int(recorder()->oop_recorder()->find_index(h)); |
aoqi@0 | 44 | } |
aoqi@0 | 45 | |
aoqi@0 | 46 | void DebugInfoWriteStream::write_metadata(Metadata* h) { |
aoqi@0 | 47 | write_int(recorder()->oop_recorder()->find_index(h)); |
aoqi@0 | 48 | } |
aoqi@0 | 49 | |
aoqi@0 | 50 | ScopeValue* DebugInfoReadStream::read_object_value() { |
aoqi@0 | 51 | int id = read_int(); |
aoqi@0 | 52 | #ifdef ASSERT |
aoqi@0 | 53 | assert(_obj_pool != NULL, "object pool does not exist"); |
aoqi@0 | 54 | for (int i = _obj_pool->length() - 1; i >= 0; i--) { |
aoqi@0 | 55 | assert(((ObjectValue*) _obj_pool->at(i))->id() != id, "should not be read twice"); |
aoqi@0 | 56 | } |
aoqi@0 | 57 | #endif |
aoqi@0 | 58 | ObjectValue* result = new ObjectValue(id); |
aoqi@0 | 59 | // Cache the object since an object field could reference it. |
aoqi@0 | 60 | _obj_pool->push(result); |
aoqi@0 | 61 | result->read_object(this); |
aoqi@0 | 62 | return result; |
aoqi@0 | 63 | } |
aoqi@0 | 64 | |
aoqi@0 | 65 | ScopeValue* DebugInfoReadStream::get_cached_object() { |
aoqi@0 | 66 | int id = read_int(); |
aoqi@0 | 67 | assert(_obj_pool != NULL, "object pool does not exist"); |
aoqi@0 | 68 | for (int i = _obj_pool->length() - 1; i >= 0; i--) { |
aoqi@0 | 69 | ObjectValue* ov = (ObjectValue*) _obj_pool->at(i); |
aoqi@0 | 70 | if (ov->id() == id) { |
aoqi@0 | 71 | return ov; |
aoqi@0 | 72 | } |
aoqi@0 | 73 | } |
aoqi@0 | 74 | ShouldNotReachHere(); |
aoqi@0 | 75 | return NULL; |
aoqi@0 | 76 | } |
aoqi@0 | 77 | |
aoqi@0 | 78 | // Serializing scope values |
aoqi@0 | 79 | |
aoqi@0 | 80 | enum { LOCATION_CODE = 0, CONSTANT_INT_CODE = 1, CONSTANT_OOP_CODE = 2, |
aoqi@0 | 81 | CONSTANT_LONG_CODE = 3, CONSTANT_DOUBLE_CODE = 4, |
aoqi@0 | 82 | OBJECT_CODE = 5, OBJECT_ID_CODE = 6 }; |
aoqi@0 | 83 | |
aoqi@0 | 84 | ScopeValue* ScopeValue::read_from(DebugInfoReadStream* stream) { |
aoqi@0 | 85 | ScopeValue* result = NULL; |
aoqi@0 | 86 | switch(stream->read_int()) { |
aoqi@0 | 87 | case LOCATION_CODE: result = new LocationValue(stream); break; |
aoqi@0 | 88 | case CONSTANT_INT_CODE: result = new ConstantIntValue(stream); break; |
aoqi@0 | 89 | case CONSTANT_OOP_CODE: result = new ConstantOopReadValue(stream); break; |
aoqi@0 | 90 | case CONSTANT_LONG_CODE: result = new ConstantLongValue(stream); break; |
aoqi@0 | 91 | case CONSTANT_DOUBLE_CODE: result = new ConstantDoubleValue(stream); break; |
aoqi@0 | 92 | case OBJECT_CODE: result = stream->read_object_value(); break; |
aoqi@0 | 93 | case OBJECT_ID_CODE: result = stream->get_cached_object(); break; |
aoqi@0 | 94 | default: ShouldNotReachHere(); |
aoqi@0 | 95 | } |
aoqi@0 | 96 | return result; |
aoqi@0 | 97 | } |
aoqi@0 | 98 | |
aoqi@0 | 99 | // LocationValue |
aoqi@0 | 100 | |
aoqi@0 | 101 | LocationValue::LocationValue(DebugInfoReadStream* stream) { |
aoqi@0 | 102 | _location = Location(stream); |
aoqi@0 | 103 | } |
aoqi@0 | 104 | |
aoqi@0 | 105 | void LocationValue::write_on(DebugInfoWriteStream* stream) { |
aoqi@0 | 106 | stream->write_int(LOCATION_CODE); |
aoqi@0 | 107 | location().write_on(stream); |
aoqi@0 | 108 | } |
aoqi@0 | 109 | |
aoqi@0 | 110 | void LocationValue::print_on(outputStream* st) const { |
aoqi@0 | 111 | location().print_on(st); |
aoqi@0 | 112 | } |
aoqi@0 | 113 | |
aoqi@0 | 114 | // ObjectValue |
aoqi@0 | 115 | |
aoqi@0 | 116 | void ObjectValue::read_object(DebugInfoReadStream* stream) { |
aoqi@0 | 117 | _klass = read_from(stream); |
aoqi@0 | 118 | assert(_klass->is_constant_oop(), "should be constant java mirror oop"); |
aoqi@0 | 119 | int length = stream->read_int(); |
aoqi@0 | 120 | for (int i = 0; i < length; i++) { |
aoqi@0 | 121 | ScopeValue* val = read_from(stream); |
aoqi@0 | 122 | _field_values.append(val); |
aoqi@0 | 123 | } |
aoqi@0 | 124 | } |
aoqi@0 | 125 | |
aoqi@0 | 126 | void ObjectValue::write_on(DebugInfoWriteStream* stream) { |
aoqi@0 | 127 | if (_visited) { |
aoqi@0 | 128 | stream->write_int(OBJECT_ID_CODE); |
aoqi@0 | 129 | stream->write_int(_id); |
aoqi@0 | 130 | } else { |
aoqi@0 | 131 | _visited = true; |
aoqi@0 | 132 | stream->write_int(OBJECT_CODE); |
aoqi@0 | 133 | stream->write_int(_id); |
aoqi@0 | 134 | _klass->write_on(stream); |
aoqi@0 | 135 | int length = _field_values.length(); |
aoqi@0 | 136 | stream->write_int(length); |
aoqi@0 | 137 | for (int i = 0; i < length; i++) { |
aoqi@0 | 138 | _field_values.at(i)->write_on(stream); |
aoqi@0 | 139 | } |
aoqi@0 | 140 | } |
aoqi@0 | 141 | } |
aoqi@0 | 142 | |
aoqi@0 | 143 | void ObjectValue::print_on(outputStream* st) const { |
aoqi@0 | 144 | st->print("obj[%d]", _id); |
aoqi@0 | 145 | } |
aoqi@0 | 146 | |
aoqi@0 | 147 | void ObjectValue::print_fields_on(outputStream* st) const { |
aoqi@0 | 148 | #ifndef PRODUCT |
aoqi@0 | 149 | if (_field_values.length() > 0) { |
aoqi@0 | 150 | _field_values.at(0)->print_on(st); |
aoqi@0 | 151 | } |
aoqi@0 | 152 | for (int i = 1; i < _field_values.length(); i++) { |
aoqi@0 | 153 | st->print(", "); |
aoqi@0 | 154 | _field_values.at(i)->print_on(st); |
aoqi@0 | 155 | } |
aoqi@0 | 156 | #endif |
aoqi@0 | 157 | } |
aoqi@0 | 158 | |
aoqi@0 | 159 | // ConstantIntValue |
aoqi@0 | 160 | |
aoqi@0 | 161 | ConstantIntValue::ConstantIntValue(DebugInfoReadStream* stream) { |
aoqi@0 | 162 | _value = stream->read_signed_int(); |
aoqi@0 | 163 | } |
aoqi@0 | 164 | |
aoqi@0 | 165 | void ConstantIntValue::write_on(DebugInfoWriteStream* stream) { |
aoqi@0 | 166 | stream->write_int(CONSTANT_INT_CODE); |
aoqi@0 | 167 | stream->write_signed_int(value()); |
aoqi@0 | 168 | } |
aoqi@0 | 169 | |
aoqi@0 | 170 | void ConstantIntValue::print_on(outputStream* st) const { |
aoqi@0 | 171 | st->print("%d", value()); |
aoqi@0 | 172 | } |
aoqi@0 | 173 | |
aoqi@0 | 174 | // ConstantLongValue |
aoqi@0 | 175 | |
aoqi@0 | 176 | ConstantLongValue::ConstantLongValue(DebugInfoReadStream* stream) { |
aoqi@0 | 177 | _value = stream->read_long(); |
aoqi@0 | 178 | } |
aoqi@0 | 179 | |
aoqi@0 | 180 | void ConstantLongValue::write_on(DebugInfoWriteStream* stream) { |
aoqi@0 | 181 | stream->write_int(CONSTANT_LONG_CODE); |
aoqi@0 | 182 | stream->write_long(value()); |
aoqi@0 | 183 | } |
aoqi@0 | 184 | |
aoqi@0 | 185 | void ConstantLongValue::print_on(outputStream* st) const { |
aoqi@0 | 186 | st->print(INT64_FORMAT, value()); |
aoqi@0 | 187 | } |
aoqi@0 | 188 | |
aoqi@0 | 189 | // ConstantDoubleValue |
aoqi@0 | 190 | |
aoqi@0 | 191 | ConstantDoubleValue::ConstantDoubleValue(DebugInfoReadStream* stream) { |
aoqi@0 | 192 | _value = stream->read_double(); |
aoqi@0 | 193 | } |
aoqi@0 | 194 | |
aoqi@0 | 195 | void ConstantDoubleValue::write_on(DebugInfoWriteStream* stream) { |
aoqi@0 | 196 | stream->write_int(CONSTANT_DOUBLE_CODE); |
aoqi@0 | 197 | stream->write_double(value()); |
aoqi@0 | 198 | } |
aoqi@0 | 199 | |
aoqi@0 | 200 | void ConstantDoubleValue::print_on(outputStream* st) const { |
aoqi@0 | 201 | st->print("%f", value()); |
aoqi@0 | 202 | } |
aoqi@0 | 203 | |
aoqi@0 | 204 | // ConstantOopWriteValue |
aoqi@0 | 205 | |
aoqi@0 | 206 | void ConstantOopWriteValue::write_on(DebugInfoWriteStream* stream) { |
aoqi@0 | 207 | assert(JNIHandles::resolve(value()) == NULL || |
aoqi@0 | 208 | Universe::heap()->is_in_reserved(JNIHandles::resolve(value())), |
aoqi@0 | 209 | "Should be in heap"); |
aoqi@0 | 210 | stream->write_int(CONSTANT_OOP_CODE); |
aoqi@0 | 211 | stream->write_handle(value()); |
aoqi@0 | 212 | } |
aoqi@0 | 213 | |
aoqi@0 | 214 | void ConstantOopWriteValue::print_on(outputStream* st) const { |
aoqi@0 | 215 | JNIHandles::resolve(value())->print_value_on(st); |
aoqi@0 | 216 | } |
aoqi@0 | 217 | |
aoqi@0 | 218 | |
aoqi@0 | 219 | // ConstantOopReadValue |
aoqi@0 | 220 | |
aoqi@0 | 221 | ConstantOopReadValue::ConstantOopReadValue(DebugInfoReadStream* stream) { |
aoqi@0 | 222 | _value = Handle(stream->read_oop()); |
aoqi@0 | 223 | assert(_value() == NULL || |
aoqi@0 | 224 | Universe::heap()->is_in_reserved(_value()), "Should be in heap"); |
aoqi@0 | 225 | } |
aoqi@0 | 226 | |
aoqi@0 | 227 | void ConstantOopReadValue::write_on(DebugInfoWriteStream* stream) { |
aoqi@0 | 228 | ShouldNotReachHere(); |
aoqi@0 | 229 | } |
aoqi@0 | 230 | |
aoqi@0 | 231 | void ConstantOopReadValue::print_on(outputStream* st) const { |
aoqi@0 | 232 | value()()->print_value_on(st); |
aoqi@0 | 233 | } |
aoqi@0 | 234 | |
aoqi@0 | 235 | |
aoqi@0 | 236 | // MonitorValue |
aoqi@0 | 237 | |
aoqi@0 | 238 | MonitorValue::MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated) { |
aoqi@0 | 239 | _owner = owner; |
aoqi@0 | 240 | _basic_lock = basic_lock; |
aoqi@0 | 241 | _eliminated = eliminated; |
aoqi@0 | 242 | } |
aoqi@0 | 243 | |
aoqi@0 | 244 | MonitorValue::MonitorValue(DebugInfoReadStream* stream) { |
aoqi@0 | 245 | _basic_lock = Location(stream); |
aoqi@0 | 246 | _owner = ScopeValue::read_from(stream); |
aoqi@0 | 247 | _eliminated = (stream->read_bool() != 0); |
aoqi@0 | 248 | } |
aoqi@0 | 249 | |
aoqi@0 | 250 | void MonitorValue::write_on(DebugInfoWriteStream* stream) { |
aoqi@0 | 251 | _basic_lock.write_on(stream); |
aoqi@0 | 252 | _owner->write_on(stream); |
aoqi@0 | 253 | stream->write_bool(_eliminated); |
aoqi@0 | 254 | } |
aoqi@0 | 255 | |
aoqi@0 | 256 | #ifndef PRODUCT |
aoqi@0 | 257 | void MonitorValue::print_on(outputStream* st) const { |
aoqi@0 | 258 | st->print("monitor{"); |
aoqi@0 | 259 | owner()->print_on(st); |
aoqi@0 | 260 | st->print(","); |
aoqi@0 | 261 | basic_lock().print_on(st); |
aoqi@0 | 262 | st->print("}"); |
aoqi@0 | 263 | if (_eliminated) { |
aoqi@0 | 264 | st->print(" (eliminated)"); |
aoqi@0 | 265 | } |
aoqi@0 | 266 | } |
aoqi@0 | 267 | #endif |