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-rw-r--r--include/llvm/Config/config.h.cmake9
-rw-r--r--include/llvm/Config/config.h.in9
-rw-r--r--include/llvm/ExecutionEngine/IntelJITEventsWrapper.h102
-rw-r--r--include/llvm/ExecutionEngine/JITEventListener.h42
-rw-r--r--include/llvm/ExecutionEngine/OProfileWrapper.h124
5 files changed, 276 insertions, 10 deletions
diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake
index c475014..e50bff5 100644
--- a/include/llvm/Config/config.h.cmake
+++ b/include/llvm/Config/config.h.cmake
@@ -677,9 +677,6 @@
/* Define to 1 if your <sys/time.h> declares `struct tm'. */
#undef TM_IN_SYS_TIME
-/* Define if we have the oprofile JIT-support library */
-#undef USE_OPROFILE
-
/* Define if use udis86 library */
#undef USE_UDIS86
@@ -716,4 +713,10 @@
/* Added by Kevin -- Maximum path length */
#cmakedefine MAXPATHLEN ${MAXPATHLEN}
+/* Support for Intel JIT Events API is enabled */
+#cmakedefine LLVM_USE_INTEL_JITEVENTS 1
+
+/* Support for OProfile JIT API is enabled */
+#cmakedefine LLVM_USE_OPROFILE 1
+
#endif
diff --git a/include/llvm/Config/config.h.in b/include/llvm/Config/config.h.in
index 1a996a2..723a5f6 100644
--- a/include/llvm/Config/config.h.in
+++ b/include/llvm/Config/config.h.in
@@ -615,6 +615,12 @@
/* Installation prefix directory */
#undef LLVM_PREFIX
+/* Define if we have the Intel JIT API runtime support library */
+#undef LLVM_USE_INTEL_JITEVENTS
+
+/* Define if we have the oprofile JIT-support library */
+#undef LLVM_USE_OPROFILE
+
/* Major version of the LLVM API */
#undef LLVM_VERSION_MAJOR
@@ -675,9 +681,6 @@
/* Define to 1 if your <sys/time.h> declares `struct tm'. */
#undef TM_IN_SYS_TIME
-/* Define if we have the oprofile JIT-support library */
-#undef USE_OPROFILE
-
/* Define if use udis86 library */
#undef USE_UDIS86
diff --git a/include/llvm/ExecutionEngine/IntelJITEventsWrapper.h b/include/llvm/ExecutionEngine/IntelJITEventsWrapper.h
new file mode 100644
index 0000000..ca87342
--- /dev/null
+++ b/include/llvm/ExecutionEngine/IntelJITEventsWrapper.h
@@ -0,0 +1,102 @@
+//===-- 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
diff --git a/include/llvm/ExecutionEngine/JITEventListener.h b/include/llvm/ExecutionEngine/JITEventListener.h
index 94212e1..eea603f 100644
--- a/include/llvm/ExecutionEngine/JITEventListener.h
+++ b/include/llvm/ExecutionEngine/JITEventListener.h
@@ -15,6 +15,7 @@
#ifndef LLVM_EXECUTION_ENGINE_JIT_EVENTLISTENER_H
#define LLVM_EXECUTION_ENGINE_JIT_EVENTLISTENER_H
+#include "llvm/Config/config.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/DebugLoc.h"
@@ -23,6 +24,8 @@
namespace llvm {
class Function;
class MachineFunction;
+class OProfileWrapper;
+class IntelJITEventsWrapper;
/// JITEvent_EmittedFunctionDetails - Helper struct for containing information
/// about a generated machine code function.
@@ -72,11 +75,42 @@ public:
/// to NotifyFunctionEmitted may have been destroyed by the time of the
/// matching NotifyFreeingMachineCode call.
virtual void NotifyFreeingMachineCode(void *) {}
-};
-// This returns NULL if support isn't available.
-JITEventListener *createOProfileJITEventListener();
+#if LLVM_USE_INTEL_JITEVENTS
+ // Construct an IntelJITEventListener
+ static JITEventListener *createIntelJITEventListener();
+
+ // Construct an IntelJITEventListener with a test Intel JIT API implementation
+ static JITEventListener *createIntelJITEventListener(
+ IntelJITEventsWrapper* AlternativeImpl);
+#else
+ static JITEventListener *createIntelJITEventListener() { return 0; }
+
+ static JITEventListener *createIntelJITEventListener(
+ IntelJITEventsWrapper* AlternativeImpl) {
+ return 0;
+ }
+#endif // USE_INTEL_JITEVENTS
+
+#if LLVM_USE_OPROFILE
+ // Construct an OProfileJITEventListener
+ static JITEventListener *createOProfileJITEventListener();
+
+ // Construct an OProfileJITEventListener with a test opagent implementation
+ static JITEventListener *createOProfileJITEventListener(
+ OProfileWrapper* AlternativeImpl);
+#else
+
+ static JITEventListener *createOProfileJITEventListener() { return 0; }
+
+ static JITEventListener *createOProfileJITEventListener(
+ OProfileWrapper* AlternativeImpl) {
+ return 0;
+ }
+#endif // USE_OPROFILE
+
+};
} // end namespace llvm.
-#endif
+#endif // defined LLVM_EXECUTION_ENGINE_JIT_EVENTLISTENER_H
diff --git a/include/llvm/ExecutionEngine/OProfileWrapper.h b/include/llvm/ExecutionEngine/OProfileWrapper.h
new file mode 100644
index 0000000..ab7f25e
--- /dev/null
+++ b/include/llvm/ExecutionEngine/OProfileWrapper.h
@@ -0,0 +1,124 @@
+//===-- OProfileWrapper.h - OProfile JIT 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 OProfileWrapper object that detects if the oprofile
+// daemon is running, and provides wrappers for opagent functions used to
+// communicate with the oprofile JIT interface. The dynamic library libopagent
+// does not need to be linked directly as this object lazily loads the library
+// when the first op_ function is called.
+//
+// See http://oprofile.sourceforge.net/doc/devel/jit-interface.html for the
+// definition of the interface.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef OPROFILE_WRAPPER_H
+#define OPROFILE_WRAPPER_H
+
+#include "llvm/Support/DataTypes.h"
+#include <opagent.h>
+
+namespace llvm {
+
+
+class OProfileWrapper {
+ typedef op_agent_t (*op_open_agent_ptr_t)();
+ typedef int (*op_close_agent_ptr_t)(op_agent_t);
+ typedef int (*op_write_native_code_ptr_t)(op_agent_t,
+ const char*,
+ uint64_t,
+ void const*,
+ const unsigned int);
+ typedef int (*op_write_debug_line_info_ptr_t)(op_agent_t,
+ void const*,
+ size_t,
+ struct debug_line_info const*);
+ typedef int (*op_unload_native_code_ptr_t)(op_agent_t, uint64_t);
+
+ // Also used for op_minor_version function which has the same signature
+ typedef int (*op_major_version_ptr_t)(void);
+
+ // This is not a part of the opagent API, but is useful nonetheless
+ typedef bool (*IsOProfileRunningPtrT)(void);
+
+
+ op_agent_t Agent;
+ op_open_agent_ptr_t OpenAgentFunc;
+ op_close_agent_ptr_t CloseAgentFunc;
+ op_write_native_code_ptr_t WriteNativeCodeFunc;
+ op_write_debug_line_info_ptr_t WriteDebugLineInfoFunc;
+ op_unload_native_code_ptr_t UnloadNativeCodeFunc;
+ op_major_version_ptr_t MajorVersionFunc;
+ op_major_version_ptr_t MinorVersionFunc;
+ IsOProfileRunningPtrT IsOProfileRunningFunc;
+
+ bool Initialized;
+
+public:
+ OProfileWrapper();
+
+ // For testing with a mock opagent implementation, skips the dynamic load and
+ // the function resolution.
+ OProfileWrapper(op_open_agent_ptr_t OpenAgentImpl,
+ op_close_agent_ptr_t CloseAgentImpl,
+ op_write_native_code_ptr_t WriteNativeCodeImpl,
+ op_write_debug_line_info_ptr_t WriteDebugLineInfoImpl,
+ op_unload_native_code_ptr_t UnloadNativeCodeImpl,
+ op_major_version_ptr_t MajorVersionImpl,
+ op_major_version_ptr_t MinorVersionImpl,
+ IsOProfileRunningPtrT MockIsOProfileRunningImpl = 0)
+ : OpenAgentFunc(OpenAgentImpl),
+ CloseAgentFunc(CloseAgentImpl),
+ WriteNativeCodeFunc(WriteNativeCodeImpl),
+ WriteDebugLineInfoFunc(WriteDebugLineInfoImpl),
+ UnloadNativeCodeFunc(UnloadNativeCodeImpl),
+ MajorVersionFunc(MajorVersionImpl),
+ MinorVersionFunc(MinorVersionImpl),
+ IsOProfileRunningFunc(MockIsOProfileRunningImpl),
+ Initialized(true)
+ {
+ }
+
+ // Calls op_open_agent in the oprofile JIT library and saves the returned
+ // op_agent_t handle internally so it can be used when calling all the other
+ // op_* functions. Callers of this class do not need to keep track of
+ // op_agent_t objects.
+ bool op_open_agent();
+
+ int op_close_agent();
+ int op_write_native_code(const char* name,
+ uint64_t addr,
+ void const* code,
+ const unsigned int size);
+ int op_write_debug_line_info(void const* code,
+ size_t num_entries,
+ struct debug_line_info const* info);
+ int op_unload_native_code(uint64_t addr);
+ int op_major_version(void);
+ int op_minor_version(void);
+
+ // Returns true if the oprofiled process is running, the opagent library is
+ // loaded and a connection to the agent has been established, and false
+ // otherwise.
+ bool isAgentAvailable();
+
+private:
+ // Loads the libopagent library and initializes this wrapper if the oprofile
+ // daemon is running
+ bool initialize();
+
+ // Searches /proc for the oprofile daemon and returns true if the process if
+ // found, or false otherwise.
+ bool checkForOProfileProcEntry();
+
+ bool isOProfileRunning();
+};
+
+} // namespace llvm
+
+#endif //OPROFILE_WRAPPER_H
generated by cgit v1.1 at 2025-01-24 01:54:03 +0000