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authorAndrew Kaylor <andrew.kaylor@intel.com>2012-11-06 18:51:59 +0000
committerAndrew Kaylor <andrew.kaylor@intel.com>2012-11-06 18:51:59 +0000
commit776054dd938472828ac3ebf75b05e21171ef4ecf (patch)
tree33b22b5999bf7b136ad7b72a1b2259aa7e9b471d /lib/ExecutionEngine
parent64afe13a2090d34e25d197862f4c3f54fcea6397 (diff)
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Add interface for object-based JIT events.
This patch adds the interface to expose events from MCJIT when an object is emitted or freed and implements the MCJIT functionality to send those events. The IntelJITEventListener implementation is left empty for now. It will be fleshed out in a future patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167475 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/ExecutionEngine')
-rw-r--r--lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp10
-rw-r--r--lib/ExecutionEngine/MCJIT/MCJIT.cpp35
-rw-r--r--lib/ExecutionEngine/MCJIT/MCJIT.h8
3 files changed, 53 insertions, 0 deletions
diff --git a/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp b/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp
index 23f8607..4cb0270 100644
--- a/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp
+++ b/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp
@@ -54,6 +54,10 @@ public:
const EmittedFunctionDetails &Details);
virtual void NotifyFreeingMachineCode(void *OldPtr);
+
+ virtual void NotifyObjectEmitted(const ObjectImage &Obj);
+
+ virtual void NotifyFreeingObject(const ObjectImage &Obj);
};
static LineNumberInfo LineStartToIntelJITFormat(
@@ -164,6 +168,12 @@ void IntelJITEventListener::NotifyFreeingMachineCode(void *FnStart) {
}
}
+void IntelJITEventListener::NotifyObjectEmitted(const ObjectImage &Obj) {
+}
+
+void IntelJITEventListener::NotifyFreeingObject(const ObjectImage &Obj) {
+}
+
} // anonymous namespace.
namespace llvm {
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index 71d7134..91d9441 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -11,6 +11,7 @@
#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
#include "llvm/ExecutionEngine/GenericValue.h"
+#include "llvm/ExecutionEngine/JITEventListener.h"
#include "llvm/ExecutionEngine/JITMemoryManager.h"
#include "llvm/ExecutionEngine/MCJIT.h"
#include "llvm/ExecutionEngine/ObjectBuffer.h"
@@ -57,6 +58,8 @@ MCJIT::MCJIT(Module *m, TargetMachine *tm, RTDyldMemoryManager *MM,
}
MCJIT::~MCJIT() {
+ if (LoadedObject)
+ NotifyFreeingObject(LoadedObject.get());
delete MemMgr;
delete TM;
}
@@ -107,6 +110,8 @@ void MCJIT::emitObject(Module *m) {
// FIXME: Make this optional, maybe even move it to a JIT event listener
LoadedObject->registerWithDebugger();
+ NotifyObjectEmitted(*LoadedObject);
+
// FIXME: Add support for per-module compilation state
isCompiled = true;
}
@@ -290,3 +295,33 @@ void *MCJIT::getPointerToNamedFunction(const std::string &Name,
}
return 0;
}
+
+void MCJIT::RegisterJITEventListener(JITEventListener *L) {
+ if (L == NULL)
+ return;
+ MutexGuard locked(lock);
+ EventListeners.push_back(L);
+}
+void MCJIT::UnregisterJITEventListener(JITEventListener *L) {
+ if (L == NULL)
+ return;
+ MutexGuard locked(lock);
+ SmallVector<JITEventListener*, 2>::reverse_iterator I=
+ std::find(EventListeners.rbegin(), EventListeners.rend(), L);
+ if (I != EventListeners.rend()) {
+ std::swap(*I, EventListeners.back());
+ EventListeners.pop_back();
+ }
+}
+void MCJIT::NotifyObjectEmitted(const ObjectImage& Obj) {
+ MutexGuard locked(lock);
+ for (unsigned I = 0, S = EventListeners.size(); I < S; ++I) {
+ EventListeners[I]->NotifyObjectEmitted(Obj);
+ }
+}
+void MCJIT::NotifyFreeingObject(const ObjectImage& Obj) {
+ MutexGuard locked(lock);
+ for (unsigned I = 0, S = EventListeners.size(); I < S; ++I) {
+ EventListeners[I]->NotifyFreeingObject(Obj);
+ }
+}
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.h b/lib/ExecutionEngine/MCJIT/MCJIT.h
index 6cffcc5..571080d 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.h
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.h
@@ -11,6 +11,7 @@
#define LLVM_LIB_EXECUTIONENGINE_MCJIT_H
#include "llvm/PassManager.h"
+#include "llvm/ADT/SmallVector.h"
#include "llvm/ExecutionEngine/ExecutionEngine.h"
#include "llvm/ExecutionEngine/RuntimeDyld.h"
@@ -30,6 +31,7 @@ class MCJIT : public ExecutionEngine {
MCContext *Ctx;
RTDyldMemoryManager *MemMgr;
RuntimeDyld Dyld;
+ SmallVector<JITEventListener*, 2> EventListeners;
// FIXME: Add support for multiple modules
bool isCompiled;
@@ -75,6 +77,9 @@ public:
Dyld.mapSectionAddress(LocalAddress, TargetAddress);
}
+ virtual void RegisterJITEventListener(JITEventListener *L);
+ virtual void UnregisterJITEventListener(JITEventListener *L);
+
/// @}
/// @name (Private) Registration Interfaces
/// @{
@@ -98,6 +103,9 @@ protected:
/// is passed as a parameter here to prepare for multiple module support in
/// the future.
void emitObject(Module *M);
+
+ void NotifyObjectEmitted(const ObjectImage& Obj);
+ void NotifyFreeingObject(const ObjectImage& Obj);
};
} // End llvm namespace