Mercurial > hg > truffle
view src/share/vm/gc_implementation/shared/gcTrace.cpp @ 17968:dbf0d88d867d
8011646: SEGV in compiled code with loop predication
Summary: Remove control edge of load node to ensure that castPP removal sets the control edge correctly
Reviewed-by: kvn, roland
author | anoll |
---|---|
date | Fri, 30 May 2014 06:50:38 +0200 |
parents | 9fdaa79b0c27 |
children | 0982ec23da03 |
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/* * Copyright (c) 2012, 2013, 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 "gc_implementation/shared/copyFailedInfo.hpp" #include "gc_implementation/shared/gcHeapSummary.hpp" #include "gc_implementation/shared/gcTimer.hpp" #include "gc_implementation/shared/gcTrace.hpp" #include "gc_implementation/shared/objectCountEventSender.hpp" #include "memory/heapInspection.hpp" #include "memory/referenceProcessorStats.hpp" #include "runtime/os.hpp" #include "utilities/globalDefinitions.hpp" #include "utilities/ticks.inline.hpp" #if INCLUDE_ALL_GCS #include "gc_implementation/g1/evacuationInfo.hpp" #endif #define assert_unset_gc_id() assert(_shared_gc_info.id() == SharedGCInfo::UNSET_GCID, "GC already started?") #define assert_set_gc_id() assert(_shared_gc_info.id() != SharedGCInfo::UNSET_GCID, "GC not started?") static GCId GCTracer_next_gc_id = 0; static GCId create_new_gc_id() { return GCTracer_next_gc_id++; } void GCTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) { assert_unset_gc_id(); GCId gc_id = create_new_gc_id(); _shared_gc_info.set_id(gc_id); _shared_gc_info.set_cause(cause); _shared_gc_info.set_start_timestamp(timestamp); } void GCTracer::report_gc_start(GCCause::Cause cause, const Ticks& timestamp) { assert_unset_gc_id(); report_gc_start_impl(cause, timestamp); } bool GCTracer::has_reported_gc_start() const { return _shared_gc_info.id() != SharedGCInfo::UNSET_GCID; } void GCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { assert_set_gc_id(); _shared_gc_info.set_sum_of_pauses(time_partitions->sum_of_pauses()); _shared_gc_info.set_longest_pause(time_partitions->longest_pause()); _shared_gc_info.set_end_timestamp(timestamp); send_phase_events(time_partitions); send_garbage_collection_event(); } void GCTracer::report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions) { assert_set_gc_id(); report_gc_end_impl(timestamp, time_partitions); _shared_gc_info.set_id(SharedGCInfo::UNSET_GCID); } void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const { assert_set_gc_id(); send_reference_stats_event(REF_SOFT, rps.soft_count()); send_reference_stats_event(REF_WEAK, rps.weak_count()); send_reference_stats_event(REF_FINAL, rps.final_count()); send_reference_stats_event(REF_PHANTOM, rps.phantom_count()); } #if INCLUDE_SERVICES class ObjectCountEventSenderClosure : public KlassInfoClosure { const GCId _gc_id; const double _size_threshold_percentage; const size_t _total_size_in_words; const Ticks _timestamp; public: ObjectCountEventSenderClosure(GCId gc_id, size_t total_size_in_words, const Ticks& timestamp) : _gc_id(gc_id), _size_threshold_percentage(ObjectCountCutOffPercent / 100), _total_size_in_words(total_size_in_words), _timestamp(timestamp) {} virtual void do_cinfo(KlassInfoEntry* entry) { if (should_send_event(entry)) { ObjectCountEventSender::send(entry, _gc_id, _timestamp); } } private: bool should_send_event(const KlassInfoEntry* entry) const { double percentage_of_heap = ((double) entry->words()) / _total_size_in_words; return percentage_of_heap >= _size_threshold_percentage; } }; void GCTracer::report_object_count_after_gc(BoolObjectClosure* is_alive_cl) { assert_set_gc_id(); assert(is_alive_cl != NULL, "Must supply function to check liveness"); if (ObjectCountEventSender::should_send_event()) { ResourceMark rm; KlassInfoTable cit(false); if (!cit.allocation_failed()) { HeapInspection hi(false, false, false, NULL); hi.populate_table(&cit, is_alive_cl); ObjectCountEventSenderClosure event_sender(_shared_gc_info.id(), cit.size_of_instances_in_words(), Ticks::now()); cit.iterate(&event_sender); } } } #endif // INCLUDE_SERVICES void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const { assert_set_gc_id(); send_gc_heap_summary_event(when, heap_summary); } void GCTracer::report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& summary) const { assert_set_gc_id(); send_meta_space_summary_event(when, summary); send_metaspace_chunk_free_list_summary(when, Metaspace::NonClassType, summary.metaspace_chunk_free_list_summary()); if (UseCompressedClassPointers) { send_metaspace_chunk_free_list_summary(when, Metaspace::ClassType, summary.class_chunk_free_list_summary()); } } void YoungGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { assert_set_gc_id(); assert(_tenuring_threshold != UNSET_TENURING_THRESHOLD, "Tenuring threshold has not been reported"); GCTracer::report_gc_end_impl(timestamp, time_partitions); send_young_gc_event(); _tenuring_threshold = UNSET_TENURING_THRESHOLD; } void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) { assert_set_gc_id(); send_promotion_failed_event(pf_info); } void YoungGCTracer::report_tenuring_threshold(const uint tenuring_threshold) { _tenuring_threshold = tenuring_threshold; } void OldGCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { assert_set_gc_id(); GCTracer::report_gc_end_impl(timestamp, time_partitions); send_old_gc_event(); } void ParallelOldTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { assert_set_gc_id(); OldGCTracer::report_gc_end_impl(timestamp, time_partitions); send_parallel_old_event(); } void ParallelOldTracer::report_dense_prefix(void* dense_prefix) { assert_set_gc_id(); _parallel_old_gc_info.report_dense_prefix(dense_prefix); } void OldGCTracer::report_concurrent_mode_failure() { assert_set_gc_id(); send_concurrent_mode_failure_event(); } #if INCLUDE_ALL_GCS void G1NewTracer::report_yc_type(G1YCType type) { assert_set_gc_id(); _g1_young_gc_info.set_type(type); } void G1NewTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) { assert_set_gc_id(); YoungGCTracer::report_gc_end_impl(timestamp, time_partitions); send_g1_young_gc_event(); } void G1NewTracer::report_evacuation_info(EvacuationInfo* info) { assert_set_gc_id(); send_evacuation_info_event(info); } void G1NewTracer::report_evacuation_failed(EvacuationFailedInfo& ef_info) { assert_set_gc_id(); send_evacuation_failed_event(ef_info); ef_info.reset(); } #endif