src/share/vm/compiler/compileBroker.cpp

rev 7050 : 8058461: serviceability/dcmd/CodelistTest.java and serviceability/dcmd/CompilerQueueTest.java SIGSEGV
Summary: Print only alive nmethods and add lock to print compile queue
Reviewed-by:

*** 781,802 ****
    return NULL;
  }
  
  
  void CompileBroker::print_compile_queues(outputStream* st) {
!   _c1_compile_queue->print(st);
!   _c2_compile_queue->print(st);
  }
  
  
  void CompileQueue::print(outputStream* st) {
!   assert_locked_or_safepoint(lock());
    st->print_cr("Contents of %s", name());
    st->print_cr("----------------------------");
    CompileTask* task = _first;
    if (task == NULL) {
!     st->print_cr("Empty");;
    } else {
      while (task != NULL) {
        task->print_compilation(st, NULL, true, true);
        task = task->next();
      }
--- 781,810 ----
    return NULL;
  }
  
  
  void CompileBroker::print_compile_queues(outputStream* st) {
!   if (_c1_compile_queue != NULL) {
!     _c1_compile_queue->print_with_lock(st);
!   }
!   if (_c2_compile_queue != NULL) {
!     _c2_compile_queue->print_with_lock(st);
!   }
  }
  
+ void CompileQueue::print_with_lock(outputStream* st) {
+   MutexLocker locker(lock());
+   print(st);
+ }
  
  void CompileQueue::print(outputStream* st) {
!   assert(lock()->owned_by_self(), "must own lock");
    st->print_cr("Contents of %s", name());
    st->print_cr("----------------------------");
    CompileTask* task = _first;
    if (task == NULL) {
!     st->print_cr("Empty");
    } else {
      while (task != NULL) {
        task->print_compilation(st, NULL, true, true);
        task = task->next();
      }