43 #include "gc/shared/referencePolicy.hpp"
  44 #include "gc/shared/space.hpp"
  45 #include "gc/shared/strongRootsScope.hpp"
  46 #include "oops/instanceRefKlass.hpp"
  47 #include "oops/oop.inline.hpp"
  48 #include "prims/jvmtiExport.hpp"
  49 #include "runtime/fprofiler.hpp"
  50 #include "runtime/handles.inline.hpp"
  51 #include "runtime/synchronizer.hpp"
  52 #include "runtime/thread.inline.hpp"
  53 #include "runtime/vmThread.hpp"
  54 #include "utilities/copy.hpp"
  55 #include "utilities/events.hpp"
  56 #include "utilities/stack.inline.hpp"
  57 
  58 void GenMarkSweep::invoke_at_safepoint(ReferenceProcessor* rp, bool clear_all_softrefs) {
  59   assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint");
  60 
  61   GenCollectedHeap* gch = GenCollectedHeap::heap();
  62 #ifdef ASSERT
  63   if (gch->collector_policy()->should_clear_all_soft_refs()) {
  64     assert(clear_all_softrefs, "Policy should have been checked earlier");
  65   }
  66 #endif
  67 
  68   // hook up weak ref data so it can be used during Mark-Sweep
  69   assert(ref_processor() == NULL, "no stomping");
  70   assert(rp != NULL, "should be non-NULL");
  71   set_ref_processor(rp);
  72   rp->setup_policy(clear_all_softrefs);
  73 
  74   gch->trace_heap_before_gc(_gc_tracer);
  75 
  76   // When collecting the permanent generation Method*s may be moving,
  77   // so we either have to flush all bcp data or convert it into bci.
  78   CodeCache::gc_prologue();
  79 
  80   // Increment the invocation count
  81   _total_invocations++;
  82 
  83   // Capture used regions for each generation that will be

  43 #include "gc/shared/referencePolicy.hpp"
  44 #include "gc/shared/space.hpp"
  45 #include "gc/shared/strongRootsScope.hpp"
  46 #include "oops/instanceRefKlass.hpp"
  47 #include "oops/oop.inline.hpp"
  48 #include "prims/jvmtiExport.hpp"
  49 #include "runtime/fprofiler.hpp"
  50 #include "runtime/handles.inline.hpp"
  51 #include "runtime/synchronizer.hpp"
  52 #include "runtime/thread.inline.hpp"
  53 #include "runtime/vmThread.hpp"
  54 #include "utilities/copy.hpp"
  55 #include "utilities/events.hpp"
  56 #include "utilities/stack.inline.hpp"
  57 
  58 void GenMarkSweep::invoke_at_safepoint(ReferenceProcessor* rp, bool clear_all_softrefs) {
  59   assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint");
  60 
  61   GenCollectedHeap* gch = GenCollectedHeap::heap();
  62 #ifdef ASSERT
  63   if (gch->gen_policy()->should_clear_all_soft_refs()) {
  64     assert(clear_all_softrefs, "Policy should have been checked earlier");
  65   }
  66 #endif
  67 
  68   // hook up weak ref data so it can be used during Mark-Sweep
  69   assert(ref_processor() == NULL, "no stomping");
  70   assert(rp != NULL, "should be non-NULL");
  71   set_ref_processor(rp);
  72   rp->setup_policy(clear_all_softrefs);
  73 
  74   gch->trace_heap_before_gc(_gc_tracer);
  75 
  76   // When collecting the permanent generation Method*s may be moving,
  77   // so we either have to flush all bcp data or convert it into bci.
  78   CodeCache::gc_prologue();
  79 
  80   // Increment the invocation count
  81   _total_invocations++;
  82 
  83   // Capture used regions for each generation that will be