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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
259
src/hotspot/share/code/scopeDesc.cpp
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259
src/hotspot/share/code/scopeDesc.cpp
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/*
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* Copyright (c) 1997, 2016, 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/debugInfoRec.hpp"
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#include "code/pcDesc.hpp"
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#include "code/scopeDesc.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/handles.inline.hpp"
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ScopeDesc::ScopeDesc(const CompiledMethod* code, int decode_offset, int obj_decode_offset, bool reexecute, bool rethrow_exception, bool return_oop) {
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_code = code;
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_decode_offset = decode_offset;
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_objects = decode_object_values(obj_decode_offset);
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_reexecute = reexecute;
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_rethrow_exception = rethrow_exception;
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_return_oop = return_oop;
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decode_body();
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}
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ScopeDesc::ScopeDesc(const CompiledMethod* code, int decode_offset, bool reexecute, bool rethrow_exception, bool return_oop) {
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_code = code;
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_decode_offset = decode_offset;
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_objects = decode_object_values(DebugInformationRecorder::serialized_null);
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_reexecute = reexecute;
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_rethrow_exception = rethrow_exception;
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_return_oop = return_oop;
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decode_body();
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}
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ScopeDesc::ScopeDesc(const ScopeDesc* parent) {
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_code = parent->_code;
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_decode_offset = parent->_sender_decode_offset;
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_objects = parent->_objects;
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_reexecute = false; //reexecute only applies to the first scope
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_rethrow_exception = false;
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_return_oop = false;
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decode_body();
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}
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void ScopeDesc::decode_body() {
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if (decode_offset() == DebugInformationRecorder::serialized_null) {
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// This is a sentinel record, which is only relevant to
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// approximate queries. Decode a reasonable frame.
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_sender_decode_offset = DebugInformationRecorder::serialized_null;
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_method = _code->method();
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_bci = InvocationEntryBci;
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_locals_decode_offset = DebugInformationRecorder::serialized_null;
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_expressions_decode_offset = DebugInformationRecorder::serialized_null;
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_monitors_decode_offset = DebugInformationRecorder::serialized_null;
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} else {
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// decode header
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DebugInfoReadStream* stream = stream_at(decode_offset());
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_sender_decode_offset = stream->read_int();
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_method = stream->read_method();
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_bci = stream->read_bci();
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// decode offsets for body and sender
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_locals_decode_offset = stream->read_int();
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_expressions_decode_offset = stream->read_int();
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_monitors_decode_offset = stream->read_int();
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}
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}
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GrowableArray<ScopeValue*>* ScopeDesc::decode_scope_values(int decode_offset) {
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if (decode_offset == DebugInformationRecorder::serialized_null) return NULL;
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DebugInfoReadStream* stream = stream_at(decode_offset);
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int length = stream->read_int();
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GrowableArray<ScopeValue*>* result = new GrowableArray<ScopeValue*> (length);
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for (int index = 0; index < length; index++) {
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result->push(ScopeValue::read_from(stream));
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}
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return result;
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}
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GrowableArray<ScopeValue*>* ScopeDesc::decode_object_values(int decode_offset) {
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if (decode_offset == DebugInformationRecorder::serialized_null) return NULL;
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GrowableArray<ScopeValue*>* result = new GrowableArray<ScopeValue*>();
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DebugInfoReadStream* stream = new DebugInfoReadStream(_code, decode_offset, result);
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int length = stream->read_int();
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for (int index = 0; index < length; index++) {
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// Objects values are pushed to 'result' array during read so that
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// object's fields could reference it (OBJECT_ID_CODE).
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(void)ScopeValue::read_from(stream);
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}
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assert(result->length() == length, "inconsistent debug information");
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return result;
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}
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GrowableArray<MonitorValue*>* ScopeDesc::decode_monitor_values(int decode_offset) {
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if (decode_offset == DebugInformationRecorder::serialized_null) return NULL;
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DebugInfoReadStream* stream = stream_at(decode_offset);
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int length = stream->read_int();
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GrowableArray<MonitorValue*>* result = new GrowableArray<MonitorValue*> (length);
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for (int index = 0; index < length; index++) {
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result->push(new MonitorValue(stream));
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}
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return result;
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}
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DebugInfoReadStream* ScopeDesc::stream_at(int decode_offset) const {
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return new DebugInfoReadStream(_code, decode_offset, _objects);
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}
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GrowableArray<ScopeValue*>* ScopeDesc::locals() {
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return decode_scope_values(_locals_decode_offset);
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}
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GrowableArray<ScopeValue*>* ScopeDesc::expressions() {
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return decode_scope_values(_expressions_decode_offset);
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}
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GrowableArray<MonitorValue*>* ScopeDesc::monitors() {
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return decode_monitor_values(_monitors_decode_offset);
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}
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GrowableArray<ScopeValue*>* ScopeDesc::objects() {
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return _objects;
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}
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bool ScopeDesc::is_top() const {
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return _sender_decode_offset == DebugInformationRecorder::serialized_null;
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}
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ScopeDesc* ScopeDesc::sender() const {
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if (is_top()) return NULL;
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return new ScopeDesc(this);
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}
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#ifndef PRODUCT
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void ScopeDesc::print_value_on(outputStream* st) const {
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st->print(" ");
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method()->print_short_name(st);
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int lineno = method()->line_number_from_bci(bci());
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if (lineno != -1) {
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st->print("@%d (line %d)", bci(), lineno);
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} else {
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st->print("@%d", bci());
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}
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if (should_reexecute()) {
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st->print(" reexecute=true");
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}
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st->cr();
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}
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void ScopeDesc::print_on(outputStream* st) const {
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print_on(st, NULL);
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}
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void ScopeDesc::print_on(outputStream* st, PcDesc* pd) const {
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// header
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if (pd != NULL) {
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st->print_cr("ScopeDesc(pc=" PTR_FORMAT " offset=%x):", p2i(pd->real_pc(_code)), pd->pc_offset());
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}
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print_value_on(st);
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// decode offsets
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if (WizardMode) {
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st->print("ScopeDesc[%d]@" PTR_FORMAT " ", _decode_offset, p2i(_code->content_begin()));
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st->print_cr(" offset: %d", _decode_offset);
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st->print_cr(" bci: %d", bci());
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st->print_cr(" reexecute: %s", should_reexecute() ? "true" : "false");
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st->print_cr(" locals: %d", _locals_decode_offset);
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st->print_cr(" stack: %d", _expressions_decode_offset);
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st->print_cr(" monitor: %d", _monitors_decode_offset);
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st->print_cr(" sender: %d", _sender_decode_offset);
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}
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// locals
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{ GrowableArray<ScopeValue*>* l = ((ScopeDesc*) this)->locals();
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if (l != NULL) {
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st->print_cr(" Locals");
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for (int index = 0; index < l->length(); index++) {
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st->print(" - l%d: ", index);
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l->at(index)->print_on(st);
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st->cr();
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}
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}
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}
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// expressions
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{ GrowableArray<ScopeValue*>* l = ((ScopeDesc*) this)->expressions();
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if (l != NULL) {
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st->print_cr(" Expression stack");
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for (int index = 0; index < l->length(); index++) {
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st->print(" - @%d: ", index);
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l->at(index)->print_on(st);
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st->cr();
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}
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}
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}
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// monitors
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{ GrowableArray<MonitorValue*>* l = ((ScopeDesc*) this)->monitors();
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if (l != NULL) {
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st->print_cr(" Monitor stack");
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for (int index = 0; index < l->length(); index++) {
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st->print(" - @%d: ", index);
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l->at(index)->print_on(st);
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st->cr();
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}
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}
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}
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#if defined(COMPILER2) || INCLUDE_JVMCI
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if (NOT_JVMCI(DoEscapeAnalysis &&) is_top() && _objects != NULL) {
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st->print_cr(" Objects");
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for (int i = 0; i < _objects->length(); i++) {
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ObjectValue* sv = (ObjectValue*) _objects->at(i);
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st->print(" - %d: ", sv->id());
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st->print("%s ", java_lang_Class::as_Klass(sv->klass()->as_ConstantOopReadValue()->value()())->external_name());
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sv->print_fields_on(st);
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st->cr();
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}
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}
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#endif // COMPILER2 || INCLUDE_JVMCI
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}
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#endif
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void ScopeDesc::verify() {
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ResourceMark rm;
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guarantee(method()->is_method(), "type check");
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// check if we have any illegal elements on the expression stack
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{ GrowableArray<ScopeValue*>* l = expressions();
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if (l != NULL) {
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for (int index = 0; index < l->length(); index++) {
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//guarantee(!l->at(index)->is_illegal(), "expression element cannot be illegal");
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}
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}
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}
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}
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