33 #include "runtime/interfaceSupport.hpp"
  34 #include "runtime/os.hpp"
  35 #include "utilities/dtrace.hpp"
  36 
  37 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
  38 
  39 #ifndef USDT2
  40 HS_DTRACE_PROBE_DECL(hs_private, cms__initmark__begin);
  41 HS_DTRACE_PROBE_DECL(hs_private, cms__initmark__end);
  42 
  43 HS_DTRACE_PROBE_DECL(hs_private, cms__remark__begin);
  44 HS_DTRACE_PROBE_DECL(hs_private, cms__remark__end);
  45 #endif /* !USDT2 */
  46 
  47 //////////////////////////////////////////////////////////
  48 // Methods in abstract class VM_CMS_Operation
  49 //////////////////////////////////////////////////////////
  50 void VM_CMS_Operation::acquire_pending_list_lock() {
  51   // The caller may block while communicating
  52   // with the SLT thread in order to acquire/release the PLL.
  53   ConcurrentMarkSweepThread::slt()->
  54     manipulatePLL(SurrogateLockerThread::acquirePLL);




  55 }
  56 
  57 void VM_CMS_Operation::release_and_notify_pending_list_lock() {
  58   // The caller may block while communicating
  59   // with the SLT thread in order to acquire/release the PLL.
  60   ConcurrentMarkSweepThread::slt()->
  61     manipulatePLL(SurrogateLockerThread::releaseAndNotifyPLL);
  62 }
  63 
  64 void VM_CMS_Operation::verify_before_gc() {
  65   if (VerifyBeforeGC &&
  66       GenCollectedHeap::heap()->total_collections() >= VerifyGCStartAt) {
  67     GCTraceTime tm("Verify Before", false, false, _collector->_gc_timer_cm, _collector->_gc_tracer_cm->gc_id());
  68     HandleMark hm;
  69     FreelistLocker x(_collector);
  70     MutexLockerEx  y(_collector->bitMapLock(), Mutex::_no_safepoint_check_flag);
  71     Universe::heap()->prepare_for_verify();
  72     Universe::verify();
  73   }
  74 }

  33 #include "runtime/interfaceSupport.hpp"
  34 #include "runtime/os.hpp"
  35 #include "utilities/dtrace.hpp"
  36 
  37 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
  38 
  39 #ifndef USDT2
  40 HS_DTRACE_PROBE_DECL(hs_private, cms__initmark__begin);
  41 HS_DTRACE_PROBE_DECL(hs_private, cms__initmark__end);
  42 
  43 HS_DTRACE_PROBE_DECL(hs_private, cms__remark__begin);
  44 HS_DTRACE_PROBE_DECL(hs_private, cms__remark__end);
  45 #endif /* !USDT2 */
  46 
  47 //////////////////////////////////////////////////////////
  48 // Methods in abstract class VM_CMS_Operation
  49 //////////////////////////////////////////////////////////
  50 void VM_CMS_Operation::acquire_pending_list_lock() {
  51   // The caller may block while communicating
  52   // with the SLT thread in order to acquire/release the PLL.
  53   SurrogateLockerThread* slt = ConcurrentMarkSweepThread::slt();
  54   if (slt != NULL) {
  55     slt->manipulatePLL(SurrogateLockerThread::acquirePLL);
  56   } else {
  57     SurrogateLockerThread::report_missing_slt();
  58   }
  59 }
  60 
  61 void VM_CMS_Operation::release_and_notify_pending_list_lock() {
  62   // The caller may block while communicating
  63   // with the SLT thread in order to acquire/release the PLL.
  64   ConcurrentMarkSweepThread::slt()->
  65     manipulatePLL(SurrogateLockerThread::releaseAndNotifyPLL);
  66 }
  67 
  68 void VM_CMS_Operation::verify_before_gc() {
  69   if (VerifyBeforeGC &&
  70       GenCollectedHeap::heap()->total_collections() >= VerifyGCStartAt) {
  71     GCTraceTime tm("Verify Before", false, false, _collector->_gc_timer_cm, _collector->_gc_tracer_cm->gc_id());
  72     HandleMark hm;
  73     FreelistLocker x(_collector);
  74     MutexLockerEx  y(_collector->bitMapLock(), Mutex::_no_safepoint_check_flag);
  75     Universe::heap()->prepare_for_verify();
  76     Universe::verify();
  77   }
  78 }