src/hotspot/share/runtime/thread.hpp

@@ -58,10 +58,12 @@
  class ThreadsList;
  class ThreadsSMRSupport;
  class VMErrorCallback;
  
  
+ class PerfTraceTime;
+ 
  DEBUG_ONLY(class ResourceMark;)
  
  class WorkerThread;
  
  class JavaThread;

@@ -622,10 +624,108 @@
      return cur != nullptr && cur->in_asgct();
    }
  
   private:
    VMErrorCallback* _vm_error_callbacks;
+ 
+   bool  _profile_vm_locks;
+   bool  _profile_vm_calls;
+   bool  _profile_vm_ops;
+   bool  _profile_rt_calls;
+   bool  _profile_upcalls;
+ 
+   jlong    _all_bc_counter_value;
+   jlong _clinit_bc_counter_value;
+ 
+   PerfTraceTime* _current_rt_call_timer;
+  public:
+   bool     profile_vm_locks() const { return _profile_vm_locks; }
+   void set_profile_vm_locks(bool v) { _profile_vm_locks = v; }
+ 
+   bool     profile_vm_calls() const { return _profile_vm_calls; }
+   void set_profile_vm_calls(bool v) { _profile_vm_calls = v; }
+ 
+   bool     profile_vm_ops() const { return _profile_vm_ops; }
+   void set_profile_vm_ops(bool v) { _profile_vm_ops = v; }
+ 
+   bool     profile_rt_calls() const { return _profile_rt_calls; }
+   void set_profile_rt_calls(bool v) { _profile_rt_calls = v; }
+ 
+   bool     profile_upcalls() const { return _profile_upcalls; }
+   void set_profile_upcalls(bool v) { _profile_upcalls = v; }
+ 
+   PerfTraceTime*     current_rt_call_timer() const           { return _current_rt_call_timer;            }
+   void           set_current_rt_call_timer(PerfTraceTime* c) {        _current_rt_call_timer = c;        }
+   bool           has_current_rt_call_timer() const           { return _current_rt_call_timer != nullptr; }
+ 
+   bool do_profile_rt_call() const {
+     return ProfileRuntimeCalls && profile_rt_calls() && !has_current_rt_call_timer();
+   }
+ 
+   jlong        bc_counter_value() const { return    _all_bc_counter_value; }
+ 
+   jlong clinit_bc_counter_value() const { return _clinit_bc_counter_value; }
+ 
+   void inc_clinit_bc_counter_value(jlong l) { _clinit_bc_counter_value += l; }
+ 
+   static ByteSize bc_counter_offset() { return byte_offset_of(Thread, _all_bc_counter_value); }
+ };
+ 
+ class ProfileVMCallContext : StackObj {
+  private:
+   Thread* _thread;
+   bool _enabled;
+   PerfTraceTime* _timer;
+ 
+   static int _perf_nested_runtime_calls_count;
+ 
+   static const char* name(PerfTraceTime* t);
+   static void notify_nested_rt_call(PerfTraceTime* current, PerfTraceTime* inner_timer);
+  public:
+   inline ProfileVMCallContext(Thread* current, PerfTraceTime* timer, bool is_on)
+   : _thread(current), _enabled(is_on), _timer(timer) {
+     if (_enabled) {
+       assert(timer != nullptr, "");
+       assert(_thread->current_rt_call_timer() == nullptr, "%s", name(_thread->current_rt_call_timer()));
+       _thread->set_current_rt_call_timer(timer);
+     } else if (current->profile_rt_calls()) {
+       notify_nested_rt_call(current->current_rt_call_timer(), timer);
+     }
+   }
+ 
+   inline ~ProfileVMCallContext() {
+     if (_enabled) {
+       assert(_timer == _thread->current_rt_call_timer(),
+              "%s vs %s", name(_timer), name(_thread->current_rt_call_timer()));
+       _thread->set_current_rt_call_timer(nullptr);
+     }
+   }
+ 
+   static int nested_runtime_calls_count() { return _perf_nested_runtime_calls_count; };
+ };
+ 
+ class PauseRuntimeCallProfiling : public StackObj {
+  protected:
+   Thread* _thread;
+   bool _enabled;
+   PerfTraceTime* _timer;
+ 
+  public:
+   inline PauseRuntimeCallProfiling(Thread* current, bool is_on)
+   : _thread(current), _enabled(is_on), _timer(nullptr) {
+     if (_enabled) {
+       _timer = _thread->current_rt_call_timer();
+       _thread->set_current_rt_call_timer(nullptr);
+     }
+   }
+ 
+   inline ~PauseRuntimeCallProfiling () {
+     if (_enabled) {
+       guarantee(_thread->current_rt_call_timer() == nullptr, "");
+       _thread->set_current_rt_call_timer(_timer); // restore
+     }
+   }
  };
  
  class ThreadInAsgct {
   private:
    Thread* _thread;