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-rw-r--r--lib/ExecutionEngine/MCJIT/MCJIT.cpp101
1 files changed, 54 insertions, 47 deletions
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index da5f037..e500d3d 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -11,26 +11,25 @@
#include "llvm/ExecutionEngine/GenericValue.h"
#include "llvm/ExecutionEngine/JITEventListener.h"
#include "llvm/ExecutionEngine/MCJIT.h"
-#include "llvm/ExecutionEngine/ObjectBuffer.h"
-#include "llvm/ExecutionEngine/ObjectImage.h"
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
+#include "llvm/IR/LegacyPassManager.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/Module.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/Object/Archive.h"
-#include "llvm/PassManager.h"
+#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/DynamicLibrary.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/MutexGuard.h"
-#include "llvm/Target/TargetLowering.h"
-#include "llvm/Target/TargetSubtargetInfo.h"
using namespace llvm;
+void ObjectCache::anchor() {}
+
namespace {
static struct RegisterJIT {
@@ -44,21 +43,24 @@ extern "C" void LLVMLinkInMCJIT() {
ExecutionEngine *MCJIT::createJIT(std::unique_ptr<Module> M,
std::string *ErrorStr,
- RTDyldMemoryManager *MemMgr,
+ std::unique_ptr<RTDyldMemoryManager> MemMgr,
std::unique_ptr<TargetMachine> TM) {
// Try to register the program as a source of symbols to resolve against.
//
// FIXME: Don't do this here.
sys::DynamicLibrary::LoadLibraryPermanently(nullptr, nullptr);
- return new MCJIT(std::move(M), std::move(TM),
- MemMgr ? MemMgr : new SectionMemoryManager());
+ std::unique_ptr<RTDyldMemoryManager> MM = std::move(MemMgr);
+ if (!MM)
+ MM = std::unique_ptr<SectionMemoryManager>(new SectionMemoryManager());
+
+ return new MCJIT(std::move(M), std::move(TM), std::move(MM));
}
MCJIT::MCJIT(std::unique_ptr<Module> M, std::unique_ptr<TargetMachine> tm,
- RTDyldMemoryManager *MM)
+ std::unique_ptr<RTDyldMemoryManager> MM)
: ExecutionEngine(std::move(M)), TM(std::move(tm)), Ctx(nullptr),
- MemMgr(this, MM), Dyld(&MemMgr), ObjCache(nullptr) {
+ MemMgr(this, std::move(MM)), Dyld(&MemMgr), ObjCache(nullptr) {
// FIXME: We are managing our modules, so we do not want the base class
// ExecutionEngine to manage them as well. To avoid double destruction
// of the first (and only) module added in ExecutionEngine constructor
@@ -73,7 +75,8 @@ MCJIT::MCJIT(std::unique_ptr<Module> M, std::unique_ptr<TargetMachine> tm,
Modules.clear();
OwnedModules.addModule(std::move(First));
- setDataLayout(TM->getSubtargetImpl()->getDataLayout());
+ setDataLayout(TM->getDataLayout());
+ RegisterJITEventListener(JITEventListener::createGDBRegistrationListener());
}
MCJIT::~MCJIT() {
@@ -99,13 +102,13 @@ bool MCJIT::removeModule(Module *M) {
}
void MCJIT::addObjectFile(std::unique_ptr<object::ObjectFile> Obj) {
- std::unique_ptr<ObjectImage> LoadedObject = Dyld.loadObject(std::move(Obj));
- if (!LoadedObject || Dyld.hasError())
+ std::unique_ptr<RuntimeDyld::LoadedObjectInfo> L = Dyld.loadObject(*Obj);
+ if (Dyld.hasError())
report_fatal_error(Dyld.getErrorString());
- NotifyObjectEmitted(*LoadedObject);
+ NotifyObjectEmitted(*Obj, *L);
- LoadedObjects.push_back(std::move(LoadedObject));
+ LoadedObjects.push_back(std::move(Obj));
}
void MCJIT::addObjectFile(object::OwningBinary<object::ObjectFile> Obj) {
@@ -125,43 +128,45 @@ void MCJIT::setObjectCache(ObjectCache* NewCache) {
ObjCache = NewCache;
}
-std::unique_ptr<ObjectBufferStream> MCJIT::emitObject(Module *M) {
+std::unique_ptr<MemoryBuffer> MCJIT::emitObject(Module *M) {
MutexGuard locked(lock);
// This must be a module which has already been added but not loaded to this
// MCJIT instance, since these conditions are tested by our caller,
// generateCodeForModule.
- PassManager PM;
+ legacy::PassManager PM;
- M->setDataLayout(TM->getSubtargetImpl()->getDataLayout());
+ M->setDataLayout(TM->getDataLayout());
PM.add(new DataLayoutPass());
// The RuntimeDyld will take ownership of this shortly
- std::unique_ptr<ObjectBufferStream> CompiledObject(new ObjectBufferStream());
+ SmallVector<char, 4096> ObjBufferSV;
+ raw_svector_ostream ObjStream(ObjBufferSV);
// Turn the machine code intermediate representation into bytes in memory
// that may be executed.
- if (TM->addPassesToEmitMC(PM, Ctx, CompiledObject->getOStream(),
- !getVerifyModules())) {
+ if (TM->addPassesToEmitMC(PM, Ctx, ObjStream, !getVerifyModules()))
report_fatal_error("Target does not support MC emission!");
- }
// Initialize passes.
PM.run(*M);
// Flush the output buffer to get the generated code into memory
- CompiledObject->flush();
+ ObjStream.flush();
+
+ std::unique_ptr<MemoryBuffer> CompiledObjBuffer(
+ new ObjectMemoryBuffer(std::move(ObjBufferSV)));
// If we have an object cache, tell it about the new object.
// Note that we're using the compiled image, not the loaded image (as below).
if (ObjCache) {
// MemoryBuffer is a thin wrapper around the actual memory, so it's OK
// to create a temporary object here and delete it after the call.
- MemoryBufferRef MB = CompiledObject->getMemBuffer();
+ MemoryBufferRef MB = CompiledObjBuffer->getMemBufferRef();
ObjCache->notifyObjectCompiled(M, MB);
}
- return CompiledObject;
+ return CompiledObjBuffer;
}
void MCJIT::generateCodeForModule(Module *M) {
@@ -176,14 +181,10 @@ void MCJIT::generateCodeForModule(Module *M) {
if (OwnedModules.hasModuleBeenLoaded(M))
return;
- std::unique_ptr<ObjectBuffer> ObjectToLoad;
+ std::unique_ptr<MemoryBuffer> ObjectToLoad;
// Try to load the pre-compiled object from cache if possible
- if (ObjCache) {
- if (std::unique_ptr<MemoryBuffer> PreCompiledObject =
- ObjCache->getObject(M))
- ObjectToLoad =
- llvm::make_unique<ObjectBuffer>(std::move(PreCompiledObject));
- }
+ if (ObjCache)
+ ObjectToLoad = ObjCache->getObject(M);
// If the cache did not contain a suitable object, compile the object
if (!ObjectToLoad) {
@@ -193,17 +194,18 @@ void MCJIT::generateCodeForModule(Module *M) {
// Load the object into the dynamic linker.
// MCJIT now owns the ObjectImage pointer (via its LoadedObjects list).
- std::unique_ptr<ObjectImage> LoadedObject =
- Dyld.loadObject(std::move(ObjectToLoad));
- if (!LoadedObject)
- report_fatal_error(Dyld.getErrorString());
+ ErrorOr<std::unique_ptr<object::ObjectFile>> LoadedObject =
+ object::ObjectFile::createObjectFile(ObjectToLoad->getMemBufferRef());
+ std::unique_ptr<RuntimeDyld::LoadedObjectInfo> L =
+ Dyld.loadObject(*LoadedObject.get());
- // FIXME: Make this optional, maybe even move it to a JIT event listener
- LoadedObject->registerWithDebugger();
+ if (Dyld.hasError())
+ report_fatal_error(Dyld.getErrorString());
- NotifyObjectEmitted(*LoadedObject);
+ NotifyObjectEmitted(*LoadedObject.get(), *L);
- LoadedObjects.push_back(std::move(LoadedObject));
+ Buffers.push_back(std::move(ObjectToLoad));
+ LoadedObjects.push_back(std::move(*LoadedObject));
OwnedModules.markModuleAsLoaded(M);
}
@@ -253,7 +255,7 @@ void MCJIT::finalizeModule(Module *M) {
}
uint64_t MCJIT::getExistingSymbolAddress(const std::string &Name) {
- Mangler Mang(TM->getSubtargetImpl()->getDataLayout());
+ Mangler Mang(TM->getDataLayout());
SmallString<128> FullName;
Mang.getNameWithPrefix(FullName, Name);
return Dyld.getSymbolLoadAddress(FullName);
@@ -353,7 +355,7 @@ uint64_t MCJIT::getFunctionAddress(const std::string &Name) {
void *MCJIT::getPointerToFunction(Function *F) {
MutexGuard locked(lock);
- Mangler Mang(TM->getSubtargetImpl()->getDataLayout());
+ Mangler Mang(TM->getDataLayout());
SmallString<128> Name;
TM->getNameWithPrefix(Name, F, Mang);
@@ -406,7 +408,8 @@ Function *MCJIT::FindFunctionNamedInModulePtrSet(const char *FnName,
ModulePtrSet::iterator I,
ModulePtrSet::iterator E) {
for (; I != E; ++I) {
- if (Function *F = (*I)->getFunction(FnName))
+ Function *F = (*I)->getFunction(FnName);
+ if (F && !F->isDeclaration())
return F;
}
return nullptr;
@@ -549,6 +552,7 @@ void MCJIT::RegisterJITEventListener(JITEventListener *L) {
MutexGuard locked(lock);
EventListeners.push_back(L);
}
+
void MCJIT::UnregisterJITEventListener(JITEventListener *L) {
if (!L)
return;
@@ -559,14 +563,17 @@ void MCJIT::UnregisterJITEventListener(JITEventListener *L) {
EventListeners.pop_back();
}
}
-void MCJIT::NotifyObjectEmitted(const ObjectImage& Obj) {
+
+void MCJIT::NotifyObjectEmitted(const object::ObjectFile& Obj,
+ const RuntimeDyld::LoadedObjectInfo &L) {
MutexGuard locked(lock);
- MemMgr.notifyObjectLoaded(this, &Obj);
+ MemMgr.notifyObjectLoaded(this, Obj);
for (unsigned I = 0, S = EventListeners.size(); I < S; ++I) {
- EventListeners[I]->NotifyObjectEmitted(Obj);
+ EventListeners[I]->NotifyObjectEmitted(Obj, L);
}
}
-void MCJIT::NotifyFreeingObject(const ObjectImage& Obj) {
+
+void MCJIT::NotifyFreeingObject(const object::ObjectFile& Obj) {
MutexGuard locked(lock);
for (JITEventListener *L : EventListeners)
L->NotifyFreeingObject(Obj);
generated by cgit v1.1 at 2024-12-22 11:41:48 +0000