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src/share/vm/oops/instanceRefKlass.cpp
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*** 23,447 ****
*/
#include "precompiled.hpp"
#include "classfile/javaClasses.hpp"
#include "classfile/systemDictionary.hpp"
- #include "gc_implementation/shared/markSweep.inline.hpp"
- #include "gc_interface/collectedHeap.hpp"
#include "gc_interface/collectedHeap.inline.hpp"
#include "memory/genCollectedHeap.hpp"
- #include "memory/genOopClosures.inline.hpp"
#include "memory/specialized_oop_closures.hpp"
! #include "oops/instanceRefKlass.hpp"
#include "oops/oop.inline.hpp"
#include "utilities/preserveException.hpp"
#include "utilities/macros.hpp"
- #if INCLUDE_ALL_GCS
- #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
- #include "gc_implementation/g1/g1OopClosures.inline.hpp"
- #include "gc_implementation/g1/g1RemSet.inline.hpp"
- #include "gc_implementation/g1/heapRegionManager.inline.hpp"
- #include "gc_implementation/parNew/parOopClosures.inline.hpp"
- #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
- #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
- #endif // INCLUDE_ALL_GCS
PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
- template <class T>
- void specialized_oop_follow_contents(InstanceRefKlass* ref, oop obj) {
- T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
- T heap_oop = oopDesc::load_heap_oop(referent_addr);
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr("InstanceRefKlass::oop_follow_contents " INTPTR_FORMAT, (void *)obj);
- }
- )
- if (!oopDesc::is_null(heap_oop)) {
- oop referent = oopDesc::decode_heap_oop_not_null(heap_oop);
- if (!referent->is_gc_marked() &&
- MarkSweep::ref_processor()->discover_reference(obj, ref->reference_type())) {
- // reference was discovered, referent will be traversed later
- ref->InstanceKlass::oop_follow_contents(obj);
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, (void *)obj);
- }
- )
- return;
- } else {
- // treat referent as normal oop
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, (void *)obj);
- }
- )
- MarkSweep::mark_and_push(referent_addr);
- }
- }
- T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
- if (ReferenceProcessor::pending_list_uses_discovered_field()) {
- // Treat discovered as normal oop, if ref is not "active",
- // i.e. if next is non-NULL.
- T next_oop = oopDesc::load_heap_oop(next_addr);
- if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active"
- T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr(" Process discovered as normal "
- INTPTR_FORMAT, discovered_addr);
- }
- )
- MarkSweep::mark_and_push(discovered_addr);
- }
- } else {
- #ifdef ASSERT
- // In the case of older JDKs which do not use the discovered
- // field for the pending list, an inactive ref (next != NULL)
- // must always have a NULL discovered field.
- oop next = oopDesc::load_decode_heap_oop(next_addr);
- oop discovered = java_lang_ref_Reference::discovered(obj);
- assert(oopDesc::is_null(next) || oopDesc::is_null(discovered),
- err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field",
- (oopDesc*)obj));
- #endif
- }
- // treat next as normal oop. next is a link in the reference queue.
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr);
- }
- )
- MarkSweep::mark_and_push(next_addr);
- ref->InstanceKlass::oop_follow_contents(obj);
- }
-
- void InstanceRefKlass::oop_follow_contents(oop obj) {
- if (UseCompressedOops) {
- specialized_oop_follow_contents<narrowOop>(this, obj);
- } else {
- specialized_oop_follow_contents<oop>(this, obj);
- }
- }
-
- #if INCLUDE_ALL_GCS
- template <class T>
- void specialized_oop_follow_contents(InstanceRefKlass* ref,
- ParCompactionManager* cm,
- oop obj) {
- T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
- T heap_oop = oopDesc::load_heap_oop(referent_addr);
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr("InstanceRefKlass::oop_follow_contents " INTPTR_FORMAT, (void *)obj);
- }
- )
- if (!oopDesc::is_null(heap_oop)) {
- oop referent = oopDesc::decode_heap_oop_not_null(heap_oop);
- if (PSParallelCompact::mark_bitmap()->is_unmarked(referent) &&
- PSParallelCompact::ref_processor()->
- discover_reference(obj, ref->reference_type())) {
- // reference already enqueued, referent will be traversed later
- ref->InstanceKlass::oop_follow_contents(cm, obj);
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, (void *)obj);
- }
- )
- return;
- } else {
- // treat referent as normal oop
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, (void *)obj);
- }
- )
- PSParallelCompact::mark_and_push(cm, referent_addr);
- }
- }
- T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
- if (ReferenceProcessor::pending_list_uses_discovered_field()) {
- // Treat discovered as normal oop, if ref is not "active",
- // i.e. if next is non-NULL.
- T next_oop = oopDesc::load_heap_oop(next_addr);
- if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active"
- T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr(" Process discovered as normal "
- INTPTR_FORMAT, discovered_addr);
- }
- )
- PSParallelCompact::mark_and_push(cm, discovered_addr);
- }
- } else {
- #ifdef ASSERT
- // In the case of older JDKs which do not use the discovered
- // field for the pending list, an inactive ref (next != NULL)
- // must always have a NULL discovered field.
- T next = oopDesc::load_heap_oop(next_addr);
- oop discovered = java_lang_ref_Reference::discovered(obj);
- assert(oopDesc::is_null(next) || oopDesc::is_null(discovered),
- err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field",
- (oopDesc*)obj));
- #endif
- }
- PSParallelCompact::mark_and_push(cm, next_addr);
- ref->InstanceKlass::oop_follow_contents(cm, obj);
- }
-
- void InstanceRefKlass::oop_follow_contents(ParCompactionManager* cm,
- oop obj) {
- if (UseCompressedOops) {
- specialized_oop_follow_contents<narrowOop>(this, cm, obj);
- } else {
- specialized_oop_follow_contents<oop>(this, cm, obj);
- }
- }
- #endif // INCLUDE_ALL_GCS
-
- #ifdef ASSERT
- template <class T> void trace_reference_gc(const char *s, oop obj,
- T* referent_addr,
- T* next_addr,
- T* discovered_addr) {
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr("%s obj " INTPTR_FORMAT, s, (address)obj);
- gclog_or_tty->print_cr(" referent_addr/* " INTPTR_FORMAT " / "
- INTPTR_FORMAT, referent_addr,
- referent_addr ?
- (address)oopDesc::load_decode_heap_oop(referent_addr) : NULL);
- gclog_or_tty->print_cr(" next_addr/* " INTPTR_FORMAT " / "
- INTPTR_FORMAT, next_addr,
- next_addr ? (address)oopDesc::load_decode_heap_oop(next_addr) : NULL);
- gclog_or_tty->print_cr(" discovered_addr/* " INTPTR_FORMAT " / "
- INTPTR_FORMAT, discovered_addr,
- discovered_addr ?
- (address)oopDesc::load_decode_heap_oop(discovered_addr) : NULL);
- }
- }
- #endif
-
- template <class T> void specialized_oop_adjust_pointers(InstanceRefKlass *ref, oop obj) {
- T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
- MarkSweep::adjust_pointer(referent_addr);
- T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
- MarkSweep::adjust_pointer(next_addr);
- T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
- MarkSweep::adjust_pointer(discovered_addr);
- debug_only(trace_reference_gc("InstanceRefKlass::oop_adjust_pointers", obj,
- referent_addr, next_addr, discovered_addr);)
- }
-
- int InstanceRefKlass::oop_adjust_pointers(oop obj) {
- int size = size_helper();
- InstanceKlass::oop_adjust_pointers(obj);
-
- if (UseCompressedOops) {
- specialized_oop_adjust_pointers<narrowOop>(this, obj);
- } else {
- specialized_oop_adjust_pointers<oop>(this, obj);
- }
- return size;
- }
-
- #define InstanceRefKlass_SPECIALIZED_OOP_ITERATE(T, nv_suffix, contains) \
- T* disc_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); \
- if (closure->apply_to_weak_ref_discovered_field()) { \
- closure->do_oop##nv_suffix(disc_addr); \
- } \
- \
- T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); \
- T heap_oop = oopDesc::load_heap_oop(referent_addr); \
- ReferenceProcessor* rp = closure->_ref_processor; \
- if (!oopDesc::is_null(heap_oop)) { \
- oop referent = oopDesc::decode_heap_oop_not_null(heap_oop); \
- if (!referent->is_gc_marked() && (rp != NULL) && \
- rp->discover_reference(obj, reference_type())) { \
- return size; \
- } else if (contains(referent_addr)) { \
- /* treat referent as normal oop */ \
- closure->do_oop##nv_suffix(referent_addr); \
- } \
- } \
- T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); \
- if (ReferenceProcessor::pending_list_uses_discovered_field()) { \
- T next_oop = oopDesc::load_heap_oop(next_addr); \
- /* Treat discovered as normal oop, if ref is not "active" (next non-NULL) */\
- if (!oopDesc::is_null(next_oop) && contains(disc_addr)) { \
- /* i.e. ref is not "active" */ \
- debug_only( \
- if(TraceReferenceGC && PrintGCDetails) { \
- gclog_or_tty->print_cr(" Process discovered as normal " \
- INTPTR_FORMAT, disc_addr); \
- } \
- ) \
- closure->do_oop##nv_suffix(disc_addr); \
- } \
- } else { \
- /* In the case of older JDKs which do not use the discovered field for */ \
- /* the pending list, an inactive ref (next != NULL) must always have a */ \
- /* NULL discovered field. */ \
- debug_only( \
- T next_oop = oopDesc::load_heap_oop(next_addr); \
- T disc_oop = oopDesc::load_heap_oop(disc_addr); \
- assert(oopDesc::is_null(next_oop) || oopDesc::is_null(disc_oop), \
- err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL" \
- "discovered field", (oopDesc*)obj)); \
- ) \
- } \
- /* treat next as normal oop */ \
- if (contains(next_addr)) { \
- closure->do_oop##nv_suffix(next_addr); \
- } \
- return size; \
-
-
- template <class T> bool contains(T *t) { return true; }
-
- // Macro to define InstanceRefKlass::oop_oop_iterate for virtual/nonvirtual for
- // all closures. Macros calling macros above for each oop size.
-
- #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
- \
- int InstanceRefKlass:: \
- oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \
- /* Get size before changing pointers */ \
- int size = InstanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \
- \
- if (UseCompressedOops) { \
- InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \
- } else { \
- InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \
- } \
- }
-
- #if INCLUDE_ALL_GCS
- #define InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
- \
- int InstanceRefKlass:: \
- oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) { \
- /* Get size before changing pointers */ \
- int size = InstanceKlass::oop_oop_iterate_backwards##nv_suffix(obj, closure); \
- \
- if (UseCompressedOops) { \
- InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \
- } else { \
- InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \
- } \
- }
- #endif // INCLUDE_ALL_GCS
-
-
- #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \
- \
- int InstanceRefKlass:: \
- oop_oop_iterate##nv_suffix##_m(oop obj, \
- OopClosureType* closure, \
- MemRegion mr) { \
- int size = InstanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \
- if (UseCompressedOops) { \
- InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, mr.contains); \
- } else { \
- InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr.contains); \
- } \
- }
-
- ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
- ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
- #if INCLUDE_ALL_GCS
- ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
- ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
- #endif // INCLUDE_ALL_GCS
- ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
- ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
-
- #if INCLUDE_ALL_GCS
- template <class T>
- void specialized_oop_push_contents(InstanceRefKlass *ref,
- PSPromotionManager* pm, oop obj) {
- T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
- if (PSScavenge::should_scavenge(referent_addr)) {
- ReferenceProcessor* rp = PSScavenge::reference_processor();
- if (rp->discover_reference(obj, ref->reference_type())) {
- // reference already enqueued, referent and next will be traversed later
- ref->InstanceKlass::oop_push_contents(pm, obj);
- return;
- } else {
- // treat referent as normal oop
- pm->claim_or_forward_depth(referent_addr);
- }
- }
- // Treat discovered as normal oop, if ref is not "active",
- // i.e. if next is non-NULL.
- T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
- if (ReferenceProcessor::pending_list_uses_discovered_field()) {
- T next_oop = oopDesc::load_heap_oop(next_addr);
- if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active"
- T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
- debug_only(
- if(TraceReferenceGC && PrintGCDetails) {
- gclog_or_tty->print_cr(" Process discovered as normal "
- INTPTR_FORMAT, discovered_addr);
- }
- )
- if (PSScavenge::should_scavenge(discovered_addr)) {
- pm->claim_or_forward_depth(discovered_addr);
- }
- }
- } else {
- #ifdef ASSERT
- // In the case of older JDKs which do not use the discovered
- // field for the pending list, an inactive ref (next != NULL)
- // must always have a NULL discovered field.
- oop next = oopDesc::load_decode_heap_oop(next_addr);
- oop discovered = java_lang_ref_Reference::discovered(obj);
- assert(oopDesc::is_null(next) || oopDesc::is_null(discovered),
- err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field",
- (oopDesc*)obj));
- #endif
- }
-
- // Treat next as normal oop; next is a link in the reference queue.
- if (PSScavenge::should_scavenge(next_addr)) {
- pm->claim_or_forward_depth(next_addr);
- }
- ref->InstanceKlass::oop_push_contents(pm, obj);
- }
-
- void InstanceRefKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
- if (UseCompressedOops) {
- specialized_oop_push_contents<narrowOop>(this, pm, obj);
- } else {
- specialized_oop_push_contents<oop>(this, pm, obj);
- }
- }
-
- template <class T>
- void specialized_oop_update_pointers(InstanceRefKlass *ref,
- ParCompactionManager* cm, oop obj) {
- T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
- PSParallelCompact::adjust_pointer(referent_addr);
- T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
- PSParallelCompact::adjust_pointer(next_addr);
- T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
- PSParallelCompact::adjust_pointer(discovered_addr);
- debug_only(trace_reference_gc("InstanceRefKlass::oop_update_ptrs", obj,
- referent_addr, next_addr, discovered_addr);)
- }
-
- int InstanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
- InstanceKlass::oop_update_pointers(cm, obj);
- if (UseCompressedOops) {
- specialized_oop_update_pointers<narrowOop>(this, cm, obj);
- } else {
- specialized_oop_update_pointers<oop>(this, cm, obj);
- }
- return size_helper();
- }
- #endif // INCLUDE_ALL_GCS
-
void InstanceRefKlass::update_nonstatic_oop_maps(Klass* k) {
// Clear the nonstatic oop-map entries corresponding to referent
// and nextPending field. They are treated specially by the
// garbage collector.
// The discovered field is used only by the garbage collector
--- 23,42 ----
*/
#include "precompiled.hpp"
#include "classfile/javaClasses.hpp"
#include "classfile/systemDictionary.hpp"
#include "gc_interface/collectedHeap.inline.hpp"
#include "memory/genCollectedHeap.hpp"
#include "memory/specialized_oop_closures.hpp"
! #include "oops/instanceRefKlass.inline.hpp"
#include "oops/oop.inline.hpp"
#include "utilities/preserveException.hpp"
#include "utilities/macros.hpp"
PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
void InstanceRefKlass::update_nonstatic_oop_maps(Klass* k) {
// Clear the nonstatic oop-map entries corresponding to referent
// and nextPending field. They are treated specially by the
// garbage collector.
// The discovered field is used only by the garbage collector
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