src/hotspot/share/gc/g1/g1BarrierSetRuntime.cpp

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#include "gc/g1/g1BarrierSet.inline.hpp"
#include "gc/g1/g1BarrierSetRuntime.hpp"
#include "gc/g1/g1ThreadLocalData.hpp"
#include "runtime/interfaceSupport.inline.hpp"
#include "utilities/macros.hpp"

void G1BarrierSetRuntime::write_ref_array_pre_oop_entry(oop* dst, size_t length) {
  G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
  bs->write_ref_array_pre(dst, length, false);
}

void G1BarrierSetRuntime::write_ref_array_pre_narrow_oop_entry(narrowOop* dst, size_t length) {
  G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
  bs->write_ref_array_pre(dst, length, false);
}

void G1BarrierSetRuntime::write_ref_array_post_entry(HeapWord* dst, size_t length) {
  G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
  bs->G1BarrierSet::write_ref_array(dst, length);
}

// G1 pre write barrier slowpath
JRT_LEAF(void, G1BarrierSetRuntime::write_ref_field_pre_entry(oopDesc* orig, JavaThread* thread))
  assert(thread == JavaThread::current(), "pre-condition");
  assert(orig != nullptr, "should be optimized out");
  assert(oopDesc::is_oop(orig, true /* ignore mark word */), "Error");
  // store the original value that was in the field reference
  SATBMarkQueue& queue = G1ThreadLocalData::satb_mark_queue(thread);
  G1BarrierSet::satb_mark_queue_set().enqueue_known_active(queue, orig);
JRT_END

// G1 post write barrier slowpath
JRT_LEAF(void, G1BarrierSetRuntime::write_ref_field_post_entry(volatile G1CardTable::CardValue* card_addr,
                                                               JavaThread* thread))
  assert(thread == JavaThread::current(), "pre-condition");
  G1DirtyCardQueue& queue = G1ThreadLocalData::dirty_card_queue(thread);
  G1BarrierSet::dirty_card_queue_set().enqueue(queue, card_addr);
JRT_END

JRT_LEAF(void, G1BarrierSetRuntime::clone(oopDesc* src, oopDesc* dst, size_t size))
  HeapAccess<>::clone(src, dst, size);
JRT_END

address G1BarrierSetRuntime::clone_addr() {
  return reinterpret_cast<address>(clone);
}