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+//===-- IntelJITEventsWrapper.h - Intel JIT Events API Wrapper --*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a wrapper for the Intel JIT Events API. It allows for the
+// implementation of the jitprofiling library to be swapped with an alternative
+// implementation (for testing). To include this file, you must have the
+// jitprofiling.h header available; it is available in Intel(R) VTune(TM)
+// Amplifier XE 2011.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef INTEL_JIT_EVENTS_WRAPPER_H
+#define INTEL_JIT_EVENTS_WRAPPER_H
+
+#include "jitprofiling.h"
+
+namespace llvm {
+
+class IntelJITEventsWrapper {
+ // Function pointer types for testing implementation of Intel jitprofiling
+ // library
+ typedef int (*NotifyEventPtr)(iJIT_JVM_EVENT, void*);
+ typedef void (*RegisterCallbackExPtr)(void *, iJIT_ModeChangedEx );
+ typedef iJIT_IsProfilingActiveFlags (*IsProfilingActivePtr)(void);
+ typedef void (*FinalizeThreadPtr)(void);
+ typedef void (*FinalizeProcessPtr)(void);
+ typedef unsigned int (*GetNewMethodIDPtr)(void);
+
+ NotifyEventPtr NotifyEventFunc;
+ RegisterCallbackExPtr RegisterCallbackExFunc;
+ IsProfilingActivePtr IsProfilingActiveFunc;
+ FinalizeThreadPtr FinalizeThreadFunc;
+ FinalizeProcessPtr FinalizeProcessFunc;
+ GetNewMethodIDPtr GetNewMethodIDFunc;
+
+public:
+ bool isAmplifierRunning() {
+ return iJIT_IsProfilingActive() == iJIT_SAMPLING_ON;
+ }
+
+ IntelJITEventsWrapper()
+ : NotifyEventFunc(::iJIT_NotifyEvent),
+ RegisterCallbackExFunc(::iJIT_RegisterCallbackEx),
+ IsProfilingActiveFunc(::iJIT_IsProfilingActive),
+ FinalizeThreadFunc(::FinalizeThread),
+ FinalizeProcessFunc(::FinalizeProcess),
+ GetNewMethodIDFunc(::iJIT_GetNewMethodID) {
+ }
+
+ IntelJITEventsWrapper(NotifyEventPtr NotifyEventImpl,
+ RegisterCallbackExPtr RegisterCallbackExImpl,
+ IsProfilingActivePtr IsProfilingActiveImpl,
+ FinalizeThreadPtr FinalizeThreadImpl,
+ FinalizeProcessPtr FinalizeProcessImpl,
+ GetNewMethodIDPtr GetNewMethodIDImpl)
+ : NotifyEventFunc(NotifyEventImpl),
+ RegisterCallbackExFunc(RegisterCallbackExImpl),
+ IsProfilingActiveFunc(IsProfilingActiveImpl),
+ FinalizeThreadFunc(FinalizeThreadImpl),
+ FinalizeProcessFunc(FinalizeProcessImpl),
+ GetNewMethodIDFunc(GetNewMethodIDImpl) {
+ }
+
+ // Sends an event anncouncing that a function has been emitted
+ // return values are event-specific. See Intel documentation for details.
+ int iJIT_NotifyEvent(iJIT_JVM_EVENT EventType, void *EventSpecificData) {
+ if (!NotifyEventFunc)
+ return -1;
+ return NotifyEventFunc(EventType, EventSpecificData);
+ }
+
+ // Registers a callback function to receive notice of profiling state changes
+ void iJIT_RegisterCallbackEx(void *UserData,
+ iJIT_ModeChangedEx NewModeCallBackFuncEx) {
+ if (RegisterCallbackExFunc)
+ RegisterCallbackExFunc(UserData, NewModeCallBackFuncEx);
+ }
+
+ // Returns the current profiler mode
+ iJIT_IsProfilingActiveFlags iJIT_IsProfilingActive(void) {
+ if (!IsProfilingActiveFunc)
+ return iJIT_NOTHING_RUNNING;
+ return IsProfilingActiveFunc();
+ }
+
+ // Generates a locally unique method ID for use in code registration
+ unsigned int iJIT_GetNewMethodID(void) {
+ if (!GetNewMethodIDFunc)
+ return -1;
+ return GetNewMethodIDFunc();
+ }
+};
+
+} //namespace llvm
+
+#endif //INTEL_JIT_EVENTS_WRAPPER_H
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