#include "MCJIT.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"
-#include "llvm/ExecutionEngine/ObjectImage.h"
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Module.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/Object/Archive.h"
+#include "llvm/Object/ObjectFile.h"
#include "llvm/PassManager.h"
#include "llvm/Support/DynamicLibrary.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
+void ObjectCache::anchor() {}
+
namespace {
static struct RegisterJIT {
OwnedModules.addModule(std::move(First));
setDataLayout(TM->getSubtargetImpl()->getDataLayout());
+ RegisterJITEventListener(JITEventListener::createGDBRegistrationListener());
}
MCJIT::~MCJIT() {
}
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());
- LoadedObjects.push_back(std::move(LoadedObject));
+ NotifyObjectEmitted(*Obj, *L);
- NotifyObjectEmitted(*LoadedObject);
+ LoadedObjects.push_back(std::move(Obj));
}
void MCJIT::addObjectFile(object::OwningBinary<object::ObjectFile> Obj) {
- addObjectFile(std::move(Obj.getBinary()));
- Buffers.push_back(std::move(Obj.getBuffer()));
+ std::unique_ptr<object::ObjectFile> ObjFile;
+ std::unique_ptr<MemoryBuffer> MemBuf;
+ std::tie(ObjFile, MemBuf) = Obj.takeBinary();
+ addObjectFile(std::move(ObjFile));
+ Buffers.push_back(std::move(MemBuf));
}
void MCJIT::addArchive(object::OwningBinary<object::Archive> A) {
ObjCache = NewCache;
}
-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
PassManager PM;
M->setDataLayout(TM->getSubtargetImpl()->getDataLayout());
- PM.add(new DataLayoutPass(M));
+ 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.release();
+ return CompiledObjBuffer;
}
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) {
- ObjectToLoad.reset(emitObject(M));
- assert(ObjectToLoad.get() && "Compilation did not produce an object.");
+ ObjectToLoad = emitObject(M);
+ assert(ObjectToLoad && "Compilation did not produce an object.");
}
// 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);
}
void MCJIT::finalizeObject() {
MutexGuard locked(lock);
- for (ModulePtrSet::iterator I = OwnedModules.begin_added(),
- E = OwnedModules.end_added();
- I != E; ++I) {
- Module *M = *I;
+ // Generate code for module is going to move objects out of the 'added' list,
+ // so we need to copy that out before using it:
+ SmallVector<Module*, 16> ModsToAdd;
+ for (auto M : OwnedModules.added())
+ ModsToAdd.push_back(M);
+
+ for (auto M : ModsToAdd)
generateCodeForModule(M);
- }
finalizeLoadedModules();
}
return Addr;
for (object::OwningBinary<object::Archive> &OB : Archives) {
- object::Archive *A = OB.getBinary().get();
+ object::Archive *A = OB.getBinary();
// Look for our symbols in each Archive
object::Archive::child_iterator ChildIt = A->findSym(Name);
if (ChildIt != A->child_end()) {
void *MCJIT::getPointerToFunction(Function *F) {
MutexGuard locked(lock);
+ Mangler Mang(TM->getSubtargetImpl()->getDataLayout());
+ SmallString<128> Name;
+ TM->getNameWithPrefix(Name, F, Mang);
+
if (F->isDeclaration() || F->hasAvailableExternallyLinkage()) {
bool AbortOnFailure = !F->hasExternalWeakLinkage();
- void *Addr = getPointerToNamedFunction(F->getName(), AbortOnFailure);
- addGlobalMapping(F, Addr);
+ void *Addr = getPointerToNamedFunction(Name, AbortOnFailure);
+ updateGlobalMapping(F, Addr);
return Addr;
}
// Make sure the relevant module has been compiled and loaded.
if (HasBeenAddedButNotLoaded)
generateCodeForModule(M);
- else if (!OwnedModules.hasModuleBeenLoaded(M))
+ else if (!OwnedModules.hasModuleBeenLoaded(M)) {
// If this function doesn't belong to one of our modules, we're done.
+ // FIXME: Asking for the pointer to a function that hasn't been registered,
+ // and isn't a declaration (which is handled above) should probably
+ // be an assertion.
return nullptr;
+ }
// FIXME: Should the Dyld be retaining module information? Probably not.
//
// This is the accessor for the target address, so make sure to check the
// load address of the symbol, not the local address.
- Mangler Mang(TM->getSubtargetImpl()->getDataLayout());
- SmallString<128> Name;
- TM->getNameWithPrefix(Name, F, Mang);
return (void*)Dyld.getSymbolLoadAddress(Name);
}
llvm_unreachable("Full-featured argument passing not supported yet!");
}
-void *MCJIT::getPointerToNamedFunction(const std::string &Name,
- bool AbortOnFailure) {
+void *MCJIT::getPointerToNamedFunction(StringRef Name, bool AbortOnFailure) {
if (!isSymbolSearchingDisabled()) {
void *ptr = MemMgr.getPointerToNamedFunction(Name, false);
if (ptr)
MutexGuard locked(lock);
EventListeners.push_back(L);
}
+
void MCJIT::UnregisterJITEventListener(JITEventListener *L) {
if (!L)
return;
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);