jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp@bfdf528be8e8 (annotated)

src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp@bfdf528be8e8 (annotated)

src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp

Fri, 04 Apr 2014 10:43:56 +0200

author: tschatzl
date: Fri, 04 Apr 2014 10:43:56 +0200
changeset 6541: bfdf528be8e8
parent 6385: 58fc1b1523dc
child 6680: 78bbf4d43a14
permissions: -rw-r--r--

8038498: Fix includes and C inlining after 8035330
Summary: Change 8035330: Remove G1ParScanPartialArrayClosure and G1ParScanHeapEvacClosure broke the debug build on AIX. The method do_oop_partial_array() is added in a header, but requires the inline function par_write_ref() through several inlined calls. In some cpp files, like arguments.cpp, par_write_ref() is not defined as the corresponding inline header and is not included. The AIX debug VM does not start because of the missing symbol. This change solves this by cleaning up include dependencies.
Reviewed-by: tschatzl, stefank

 /*
  * Copyright (c) 2001, 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.
  *
  */
 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
 #include "gc_implementation/g1/concurrentMark.hpp"
 #include "gc_implementation/g1/g1CollectedHeap.hpp"
 #include "gc_implementation/g1/g1AllocRegion.inline.hpp"
 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
 #include "gc_implementation/g1/g1RemSet.inline.hpp"
 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
 #include "gc_implementation/g1/heapRegionSet.inline.hpp"
 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
 #include "utilities/taskqueue.hpp"
 // Inline functions for G1CollectedHeap
 // Return the region with the given index. It assumes the index is valid.
 inline HeapRegion* G1CollectedHeap::region_at(uint index) const { return _hrs.at(index); }
 template <class T>
 inline HeapRegion*
 G1CollectedHeap::heap_region_containing(const T addr) const {
   HeapRegion* hr = _hrs.addr_to_region((HeapWord*) addr);
   // hr can be null if addr in perm_gen
   if (hr != NULL && hr->continuesHumongous()) {
     hr = hr->humongous_start_region();
   }
   return hr;
 }
 template <class T>
 inline HeapRegion*
 G1CollectedHeap::heap_region_containing_raw(const T addr) const {
   assert(_g1_reserved.contains((const void*) addr), "invariant");
   HeapRegion* res = _hrs.addr_to_region_unsafe((HeapWord*) addr);
   return res;
 }
 inline void G1CollectedHeap::old_set_remove(HeapRegion* hr) {
   _old_set.remove(hr);
 }
 inline bool G1CollectedHeap::obj_in_cs(oop obj) {
   HeapRegion* r = _hrs.addr_to_region((HeapWord*) obj);
   return r != NULL && r->in_collection_set();
 }
 inline HeapWord*
 G1CollectedHeap::attempt_allocation(size_t word_size,
                                     unsigned int* gc_count_before_ret,
                                     int* gclocker_retry_count_ret) {
   assert_heap_not_locked_and_not_at_safepoint();
   assert(!isHumongous(word_size), "attempt_allocation() should not "
          "be called for humongous allocation requests");
   HeapWord* result = _mutator_alloc_region.attempt_allocation(word_size,
                                                       false /* bot_updates */);
   if (result == NULL) {
     result = attempt_allocation_slow(word_size,
                                      gc_count_before_ret,
                                      gclocker_retry_count_ret);
   }
   assert_heap_not_locked();
   if (result != NULL) {
     dirty_young_block(result, word_size);
   }
   return result;
 }
 inline HeapWord* G1CollectedHeap::survivor_attempt_allocation(size_t
                                                               word_size) {
   assert(!isHumongous(word_size),
          "we should not be seeing humongous-size allocations in this path");
   HeapWord* result = _survivor_gc_alloc_region.attempt_allocation(word_size,
                                                       false /* bot_updates */);
   if (result == NULL) {
     MutexLockerEx x(FreeList_lock, Mutex::_no_safepoint_check_flag);
     result = _survivor_gc_alloc_region.attempt_allocation_locked(word_size,
                                                       false /* bot_updates */);
   }
   if (result != NULL) {
     dirty_young_block(result, word_size);
   }
   return result;
 }
 inline HeapWord* G1CollectedHeap::old_attempt_allocation(size_t word_size) {
   assert(!isHumongous(word_size),
          "we should not be seeing humongous-size allocations in this path");
   HeapWord* result = _old_gc_alloc_region.attempt_allocation(word_size,
                                                        true /* bot_updates */);
   if (result == NULL) {
     MutexLockerEx x(FreeList_lock, Mutex::_no_safepoint_check_flag);
     result = _old_gc_alloc_region.attempt_allocation_locked(word_size,
                                                        true /* bot_updates */);
   }
   return result;
 }
 // It dirties the cards that cover the block so that so that the post
 // write barrier never queues anything when updating objects on this
 // block. It is assumed (and in fact we assert) that the block
 // belongs to a young region.
 inline void
 G1CollectedHeap::dirty_young_block(HeapWord* start, size_t word_size) {
   assert_heap_not_locked();
   // Assign the containing region to containing_hr so that we don't
   // have to keep calling heap_region_containing_raw() in the
   // asserts below.
   DEBUG_ONLY(HeapRegion* containing_hr = heap_region_containing_raw(start);)
   assert(containing_hr != NULL && start != NULL && word_size > 0,
          "pre-condition");
   assert(containing_hr->is_in(start), "it should contain start");
   assert(containing_hr->is_young(), "it should be young");
   assert(!containing_hr->isHumongous(), "it should not be humongous");
   HeapWord* end = start + word_size;
   assert(containing_hr->is_in(end - 1), "it should also contain end - 1");
   MemRegion mr(start, end);
   g1_barrier_set()->g1_mark_as_young(mr);
 }
 inline RefToScanQueue* G1CollectedHeap::task_queue(int i) const {
   return _task_queues->queue(i);
 }
 inline bool G1CollectedHeap::isMarkedPrev(oop obj) const {
   return _cm->prevMarkBitMap()->isMarked((HeapWord *)obj);
 }
 inline bool G1CollectedHeap::isMarkedNext(oop obj) const {
   return _cm->nextMarkBitMap()->isMarked((HeapWord *)obj);
 }
 // This is a fast test on whether a reference points into the
 // collection set or not. Assume that the reference
 // points into the heap.
 inline bool G1CollectedHeap::in_cset_fast_test(oop obj) {
   assert(_in_cset_fast_test != NULL, "sanity");
   assert(_g1_committed.contains((HeapWord*) obj), err_msg("Given reference outside of heap, is "PTR_FORMAT, (HeapWord*)obj));
   // no need to subtract the bottom of the heap from obj,
   // _in_cset_fast_test is biased
   uintx index = cast_from_oop<uintx>(obj) >> HeapRegion::LogOfHRGrainBytes;
   bool ret = _in_cset_fast_test[index];
   // let's make sure the result is consistent with what the slower
   // test returns
   assert( ret || !obj_in_cs(obj), "sanity");
   assert(!ret ||  obj_in_cs(obj), "sanity");
   return ret;
 }
 #ifndef PRODUCT
 // Support for G1EvacuationFailureALot
 inline bool
 G1CollectedHeap::evacuation_failure_alot_for_gc_type(bool gcs_are_young,
                                                      bool during_initial_mark,
                                                      bool during_marking) {
   bool res = false;
   if (during_marking) {
     res |= G1EvacuationFailureALotDuringConcMark;
   }
   if (during_initial_mark) {
     res |= G1EvacuationFailureALotDuringInitialMark;
   }
   if (gcs_are_young) {
     res |= G1EvacuationFailureALotDuringYoungGC;
   } else {
     // GCs are mixed
     res |= G1EvacuationFailureALotDuringMixedGC;
   }
   return res;
 }
 inline void
 G1CollectedHeap::set_evacuation_failure_alot_for_current_gc() {
   if (G1EvacuationFailureALot) {
     // Note we can't assert that _evacuation_failure_alot_for_current_gc
     // is clear here. It may have been set during a previous GC but that GC
     // did not copy enough objects (i.e. G1EvacuationFailureALotCount) to
     // trigger an evacuation failure and clear the flags and and counts.
     // Check if we have gone over the interval.
     const size_t gc_num = total_collections();
     const size_t elapsed_gcs = gc_num - _evacuation_failure_alot_gc_number;
     _evacuation_failure_alot_for_current_gc = (elapsed_gcs >= G1EvacuationFailureALotInterval);
     // Now check if G1EvacuationFailureALot is enabled for the current GC type.
     const bool gcs_are_young = g1_policy()->gcs_are_young();
     const bool during_im = g1_policy()->during_initial_mark_pause();
     const bool during_marking = mark_in_progress();
     _evacuation_failure_alot_for_current_gc &=
       evacuation_failure_alot_for_gc_type(gcs_are_young,
                                           during_im,
                                           during_marking);
   }
 }
 inline bool
 G1CollectedHeap::evacuation_should_fail() {
   if (!G1EvacuationFailureALot || !_evacuation_failure_alot_for_current_gc) {
     return false;
   }
   // G1EvacuationFailureALot is in effect for current GC
   // Access to _evacuation_failure_alot_count is not atomic;
   // the value does not have to be exact.
   if (++_evacuation_failure_alot_count < G1EvacuationFailureALotCount) {
     return false;
   }
   _evacuation_failure_alot_count = 0;
   return true;
 }
 inline void G1CollectedHeap::reset_evacuation_should_fail() {
   if (G1EvacuationFailureALot) {
     _evacuation_failure_alot_gc_number = total_collections();
     _evacuation_failure_alot_count = 0;
     _evacuation_failure_alot_for_current_gc = false;
   }
 }
 #endif  // #ifndef PRODUCT
 inline bool G1CollectedHeap::is_in_young(const oop obj) {
   HeapRegion* hr = heap_region_containing(obj);
   return hr != NULL && hr->is_young();
 }
 // We don't need barriers for initializing stores to objects
 // in the young gen: for the SATB pre-barrier, there is no
 // pre-value that needs to be remembered; for the remembered-set
 // update logging post-barrier, we don't maintain remembered set
 // information for young gen objects.
 inline bool G1CollectedHeap::can_elide_initializing_store_barrier(oop new_obj) {
   return is_in_young(new_obj);
 }
 inline bool G1CollectedHeap::is_obj_dead(const oop obj) const {
   const HeapRegion* hr = heap_region_containing(obj);
   if (hr == NULL) {
     if (obj == NULL) return false;
     else return true;
   }
   else return is_obj_dead(obj, hr);
 }
 inline bool G1CollectedHeap::is_obj_ill(const oop obj) const {
   const HeapRegion* hr = heap_region_containing(obj);
   if (hr == NULL) {
     if (obj == NULL) return false;
     else return true;
   }
   else return is_obj_ill(obj, hr);
 }
 template <class T> inline void G1ParScanThreadState::immediate_rs_update(HeapRegion* from, T* p, int tid) {
   if (!from->is_survivor()) {
     _g1_rem->par_write_ref(from, p, tid);
   }
 }
 template <class T> void G1ParScanThreadState::update_rs(HeapRegion* from, T* p, int tid) {
   if (G1DeferredRSUpdate) {
     deferred_rs_update(from, p, tid);
   } else {
     immediate_rs_update(from, p, tid);
   }
 }
 inline void G1ParScanThreadState::do_oop_partial_array(oop* p) {
   assert(has_partial_array_mask(p), "invariant");
   oop from_obj = clear_partial_array_mask(p);
   assert(Universe::heap()->is_in_reserved(from_obj), "must be in heap.");
   assert(from_obj->is_objArray(), "must be obj array");
   objArrayOop from_obj_array = objArrayOop(from_obj);
   // The from-space object contains the real length.
   int length                 = from_obj_array->length();
   assert(from_obj->is_forwarded(), "must be forwarded");
   oop to_obj                 = from_obj->forwardee();
   assert(from_obj != to_obj, "should not be chunking self-forwarded objects");
   objArrayOop to_obj_array   = objArrayOop(to_obj);
   // We keep track of the next start index in the length field of the
   // to-space object.
   int next_index             = to_obj_array->length();
   assert(0 <= next_index && next_index < length,
          err_msg("invariant, next index: %d, length: %d", next_index, length));
   int start                  = next_index;
   int end                    = length;
   int remainder              = end - start;
   // We'll try not to push a range that's smaller than ParGCArrayScanChunk.
   if (remainder > 2 * ParGCArrayScanChunk) {
     end = start + ParGCArrayScanChunk;
     to_obj_array->set_length(end);
     // Push the remainder before we process the range in case another
     // worker has run out of things to do and can steal it.
     oop* from_obj_p = set_partial_array_mask(from_obj);
     push_on_queue(from_obj_p);
   } else {
     assert(length == end, "sanity");
     // We'll process the final range for this object. Restore the length
     // so that the heap remains parsable in case of evacuation failure.
     to_obj_array->set_length(end);
   }
   _scanner.set_region(_g1h->heap_region_containing_raw(to_obj));
   // Process indexes [start,end). It will also process the header
   // along with the first chunk (i.e., the chunk with start == 0).
   // Note that at this point the length field of to_obj_array is not
   // correct given that we are using it to keep track of the next
   // start index. oop_iterate_range() (thankfully!) ignores the length
   // field and only relies on the start / end parameters.  It does
   // however return the size of the object which will be incorrect. So
   // we have to ignore it even if we wanted to use it.
   to_obj_array->oop_iterate_range(&_scanner, start, end);
 }
 template <class T> inline void G1ParScanThreadState::deal_with_reference(T* ref_to_scan) {
   if (!has_partial_array_mask(ref_to_scan)) {
     // Note: we can use "raw" versions of "region_containing" because
     // "obj_to_scan" is definitely in the heap, and is not in a
     // humongous region.
     HeapRegion* r = _g1h->heap_region_containing_raw(ref_to_scan);
     do_oop_evac(ref_to_scan, r);
   } else {
     do_oop_partial_array((oop*)ref_to_scan);
   }
 }
 inline void G1ParScanThreadState::deal_with_reference(StarTask ref) {
   assert(verify_task(ref), "sanity");
   if (ref.is_narrow()) {
     deal_with_reference((narrowOop*)ref);
   } else {
     deal_with_reference((oop*)ref);
   }
 }
 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp@bfdf528be8e8 (annotated)

src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp