jdk8-mips64-public/hotspot: src/share/vm/code/debugInfo.cpp@427b2fb1944f (annotated)

src/share/vm/code/debugInfo.cpp@427b2fb1944f (annotated)

src/share/vm/code/debugInfo.cpp

Wed, 31 Jan 2018 19:24:57 -0500

author: dbuck
date: Wed, 31 Jan 2018 19:24:57 -0500
changeset 9289: 427b2fb1944f
parent 6680: 78bbf4d43a14
child 6876: 710a3c8b516e
child 9841: 2e636385f137
permissions: -rw-r--r--

8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
Reviewed-by: dcubed

 /*
  * Copyright (c) 1997, 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 "code/debugInfo.hpp"
 #include "code/debugInfoRec.hpp"
 #include "code/nmethod.hpp"
 #include "runtime/handles.inline.hpp"
 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
 // Constructors
 DebugInfoWriteStream::DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size)
 : CompressedWriteStream(initial_size) {
   _recorder = recorder;
 }
 // Serializing oops
 void DebugInfoWriteStream::write_handle(jobject h) {
   write_int(recorder()->oop_recorder()->find_index(h));
 }
 void DebugInfoWriteStream::write_metadata(Metadata* h) {
   write_int(recorder()->oop_recorder()->find_index(h));
 }
 ScopeValue* DebugInfoReadStream::read_object_value() {
   int id = read_int();
 #ifdef ASSERT
   assert(_obj_pool != NULL, "object pool does not exist");
   for (int i = _obj_pool->length() - 1; i >= 0; i--) {
     assert(((ObjectValue*) _obj_pool->at(i))->id() != id, "should not be read twice");
   }
 #endif
   ObjectValue* result = new ObjectValue(id);
   // Cache the object since an object field could reference it.
   _obj_pool->push(result);
   result->read_object(this);
   return result;
 }
 ScopeValue* DebugInfoReadStream::get_cached_object() {
   int id = read_int();
   assert(_obj_pool != NULL, "object pool does not exist");
   for (int i = _obj_pool->length() - 1; i >= 0; i--) {
     ObjectValue* ov = (ObjectValue*) _obj_pool->at(i);
     if (ov->id() == id) {
       return ov;
     }
   }
   ShouldNotReachHere();
   return NULL;
 }
 // Serializing scope values
 enum { LOCATION_CODE = 0, CONSTANT_INT_CODE = 1,  CONSTANT_OOP_CODE = 2,
                           CONSTANT_LONG_CODE = 3, CONSTANT_DOUBLE_CODE = 4,
                           OBJECT_CODE = 5,        OBJECT_ID_CODE = 6 };
 ScopeValue* ScopeValue::read_from(DebugInfoReadStream* stream) {
   ScopeValue* result = NULL;
   switch(stream->read_int()) {
    case LOCATION_CODE:        result = new LocationValue(stream);        break;
    case CONSTANT_INT_CODE:    result = new ConstantIntValue(stream);     break;
    case CONSTANT_OOP_CODE:    result = new ConstantOopReadValue(stream); break;
    case CONSTANT_LONG_CODE:   result = new ConstantLongValue(stream);    break;
    case CONSTANT_DOUBLE_CODE: result = new ConstantDoubleValue(stream);  break;
    case OBJECT_CODE:          result = stream->read_object_value();      break;
    case OBJECT_ID_CODE:       result = stream->get_cached_object();      break;
    default: ShouldNotReachHere();
   }
   return result;
 }
 // LocationValue
 LocationValue::LocationValue(DebugInfoReadStream* stream) {
   _location = Location(stream);
 }
 void LocationValue::write_on(DebugInfoWriteStream* stream) {
   stream->write_int(LOCATION_CODE);
   location().write_on(stream);
 }
 void LocationValue::print_on(outputStream* st) const {
   location().print_on(st);
 }
 // ObjectValue
 void ObjectValue::read_object(DebugInfoReadStream* stream) {
   _klass = read_from(stream);
   assert(_klass->is_constant_oop(), "should be constant java mirror oop");
   int length = stream->read_int();
   for (int i = 0; i < length; i++) {
     ScopeValue* val = read_from(stream);
     _field_values.append(val);
   }
 }
 void ObjectValue::write_on(DebugInfoWriteStream* stream) {
   if (_visited) {
     stream->write_int(OBJECT_ID_CODE);
     stream->write_int(_id);
   } else {
     _visited = true;
     stream->write_int(OBJECT_CODE);
     stream->write_int(_id);
     _klass->write_on(stream);
     int length = _field_values.length();
     stream->write_int(length);
     for (int i = 0; i < length; i++) {
       _field_values.at(i)->write_on(stream);
     }
   }
 }
 void ObjectValue::print_on(outputStream* st) const {
   st->print("obj[%d]", _id);
 }
 void ObjectValue::print_fields_on(outputStream* st) const {
 #ifndef PRODUCT
   if (_field_values.length() > 0) {
     _field_values.at(0)->print_on(st);
   }
   for (int i = 1; i < _field_values.length(); i++) {
     st->print(", ");
     _field_values.at(i)->print_on(st);
   }
 #endif
 }
 // ConstantIntValue
 ConstantIntValue::ConstantIntValue(DebugInfoReadStream* stream) {
   _value = stream->read_signed_int();
 }
 void ConstantIntValue::write_on(DebugInfoWriteStream* stream) {
   stream->write_int(CONSTANT_INT_CODE);
   stream->write_signed_int(value());
 }
 void ConstantIntValue::print_on(outputStream* st) const {
   st->print("%d", value());
 }
 // ConstantLongValue
 ConstantLongValue::ConstantLongValue(DebugInfoReadStream* stream) {
   _value = stream->read_long();
 }
 void ConstantLongValue::write_on(DebugInfoWriteStream* stream) {
   stream->write_int(CONSTANT_LONG_CODE);
   stream->write_long(value());
 }
 void ConstantLongValue::print_on(outputStream* st) const {
   st->print(INT64_FORMAT, value());
 }
 // ConstantDoubleValue
 ConstantDoubleValue::ConstantDoubleValue(DebugInfoReadStream* stream) {
   _value = stream->read_double();
 }
 void ConstantDoubleValue::write_on(DebugInfoWriteStream* stream) {
   stream->write_int(CONSTANT_DOUBLE_CODE);
   stream->write_double(value());
 }
 void ConstantDoubleValue::print_on(outputStream* st) const {
   st->print("%f", value());
 }
 // ConstantOopWriteValue
 void ConstantOopWriteValue::write_on(DebugInfoWriteStream* stream) {
   assert(JNIHandles::resolve(value()) == NULL ||
          Universe::heap()->is_in_reserved(JNIHandles::resolve(value())),
          "Should be in heap");
   stream->write_int(CONSTANT_OOP_CODE);
   stream->write_handle(value());
 }
 void ConstantOopWriteValue::print_on(outputStream* st) const {
   JNIHandles::resolve(value())->print_value_on(st);
 }
 // ConstantOopReadValue
 ConstantOopReadValue::ConstantOopReadValue(DebugInfoReadStream* stream) {
   _value = Handle(stream->read_oop());
   assert(_value() == NULL ||
          Universe::heap()->is_in_reserved(_value()), "Should be in heap");
 }
 void ConstantOopReadValue::write_on(DebugInfoWriteStream* stream) {
   ShouldNotReachHere();
 }
 void ConstantOopReadValue::print_on(outputStream* st) const {
   value()()->print_value_on(st);
 }
 // MonitorValue
 MonitorValue::MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated) {
   _owner       = owner;
   _basic_lock  = basic_lock;
   _eliminated  = eliminated;
 }
 MonitorValue::MonitorValue(DebugInfoReadStream* stream) {
   _basic_lock  = Location(stream);
   _owner       = ScopeValue::read_from(stream);
   _eliminated  = (stream->read_bool() != 0);
 }
 void MonitorValue::write_on(DebugInfoWriteStream* stream) {
   _basic_lock.write_on(stream);
   _owner->write_on(stream);
   stream->write_bool(_eliminated);
 }
 #ifndef PRODUCT
 void MonitorValue::print_on(outputStream* st) const {
   st->print("monitor{");
   owner()->print_on(st);
   st->print(",");
   basic_lock().print_on(st);
   st->print("}");
   if (_eliminated) {
     st->print(" (eliminated)");
   }
 }
 #endif

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/code/debugInfo.cpp@427b2fb1944f (annotated)

src/share/vm/code/debugInfo.cpp