1835 

  1835 

  1836   this->cache_global_variables();

  1836   this->cache_global_variables();

  1837 

  1837 

  1838   // Thread is now sufficiently initialized to be handled by the safepoint code as being

  1838   // Thread is now sufficiently initialized to be handled by the safepoint code as being

  1839   // in the VM. Change thread state from _thread_new to _thread_in_vm

  1839   // in the VM. Change thread state from _thread_new to _thread_in_vm

  1841   // Before a thread is on the threads list it is always safe, so after leaving the

  1841   // Before a thread is on the threads list it is always safe, so after leaving the

  1842   // _thread_new we should emit a instruction barrier. The distance to modified code

  1842   // _thread_new we should emit a instruction barrier. The distance to modified code

  1843   // from here is probably far enough, but this is consistent and safe.

  1843   // from here is probably far enough, but this is consistent and safe.

  1844   OrderAccess::cross_modify_fence();

  1844   OrderAccess::cross_modify_fence();

  1845 

  1845 

  2473 void JavaThread::java_suspend_self_with_safepoint_check() {

  2473 void JavaThread::java_suspend_self_with_safepoint_check() {

  2474   assert(this == Thread::current(), "invariant");

  2474   assert(this == Thread::current(), "invariant");

  2475   JavaThreadState state = thread_state();

  2475   JavaThreadState state = thread_state();

  2476   set_thread_state(_thread_blocked);

  2476   set_thread_state(_thread_blocked);

  2477   java_suspend_self();

  2477   java_suspend_self();

  2479   // Since we are not using a regular thread-state transition helper here,

  2479   // Since we are not using a regular thread-state transition helper here,

  2480   // we must manually emit the instruction barrier after leaving a safe state.

  2480   // we must manually emit the instruction barrier after leaving a safe state.

  2481   OrderAccess::cross_modify_fence();

  2481   OrderAccess::cross_modify_fence();

  2483   if (state != _thread_in_native) {

  2482   if (state != _thread_in_native) {

  2484     SafepointMechanism::block_if_requested(this);

  2483     SafepointMechanism::block_if_requested(this);

  2485   }

  2484   }

  2486 }

  2485 }

  2487 

  2486