X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FExecutionEngine%2FExecutionEngine.cpp;h=d7038fd2c9a8dbec6c895c87626180c37755fe1c;hb=61cf1a8047add305e2f22a15d1f1d75859c40abb;hp=01b9bcc8905cf2cc934ed8206f43e6571a07f155;hpb=875710a2fd6b3c4f814961582594bd5c1cdb493a;p=oota-llvm.git diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp index 01b9bcc8905..d7038fd2c9a 100644 --- a/lib/ExecutionEngine/ExecutionEngine.cpp +++ b/lib/ExecutionEngine/ExecutionEngine.cpp @@ -13,14 +13,16 @@ //===----------------------------------------------------------------------===// #include "llvm/ExecutionEngine/ExecutionEngine.h" +#include "llvm/ADT/STLExtras.h" #include "llvm/ADT/SmallString.h" #include "llvm/ADT/Statistic.h" #include "llvm/ExecutionEngine/GenericValue.h" -#include "llvm/ExecutionEngine/JITMemoryManager.h" -#include "llvm/ExecutionEngine/ObjectCache.h" +#include "llvm/ExecutionEngine/JITEventListener.h" +#include "llvm/ExecutionEngine/RTDyldMemoryManager.h" #include "llvm/IR/Constants.h" #include "llvm/IR/DataLayout.h" #include "llvm/IR/DerivedTypes.h" +#include "llvm/IR/Mangler.h" #include "llvm/IR/Module.h" #include "llvm/IR/Operator.h" #include "llvm/IR/ValueHandle.h" @@ -43,22 +45,24 @@ using namespace llvm; STATISTIC(NumInitBytes, "Number of bytes of global vars initialized"); STATISTIC(NumGlobals , "Number of global vars initialized"); -// Pin the vtable to this file. -void ObjectCache::anchor() {} -void ObjectBuffer::anchor() {} -void ObjectBufferStream::anchor() {} - ExecutionEngine *(*ExecutionEngine::MCJITCtor)( - Module *M, - std::string *ErrorStr, - RTDyldMemoryManager *MCJMM, - TargetMachine *TM) = nullptr; -ExecutionEngine *(*ExecutionEngine::InterpCtor)(Module *M, + std::unique_ptr M, std::string *ErrorStr, + std::shared_ptr MemMgr, + std::shared_ptr Resolver, + std::unique_ptr TM) = nullptr; + +ExecutionEngine *(*ExecutionEngine::OrcMCJITReplacementCtor)( + std::string *ErrorStr, std::shared_ptr MemMgr, + std::shared_ptr Resolver, + std::unique_ptr TM) = nullptr; + +ExecutionEngine *(*ExecutionEngine::InterpCtor)(std::unique_ptr M, std::string *ErrorStr) =nullptr; -ExecutionEngine::ExecutionEngine(Module *M) - : EEState(*this), - LazyFunctionCreator(nullptr) { +void JITEventListener::anchor() {} + +ExecutionEngine::ExecutionEngine(std::unique_ptr M) + : LazyFunctionCreator(nullptr) { CompilingLazily = false; GVCompilationDisabled = false; SymbolSearchingDisabled = false; @@ -71,14 +75,12 @@ ExecutionEngine::ExecutionEngine(Module *M) VerifyModules = false; #endif - Modules.push_back(M); assert(M && "Module is null?"); + Modules.push_back(std::move(M)); } ExecutionEngine::~ExecutionEngine() { clearAllGlobalMappings(); - for (unsigned i = 0, e = Modules.size(); i != e; ++i) - delete Modules[i]; } namespace { @@ -95,8 +97,8 @@ public: Type *ElTy = GV->getType()->getElementType(); size_t GVSize = (size_t)TD.getTypeAllocSize(ElTy); void *RawMemory = ::operator new( - DataLayout::RoundUpAlignment(sizeof(GVMemoryBlock), - TD.getPreferredAlignment(GV)) + RoundUpToAlignment(sizeof(GVMemoryBlock), + TD.getPreferredAlignment(GV)) + GVSize); new(RawMemory) GVMemoryBlock(GV); return static_cast(RawMemory) + sizeof(GVMemoryBlock); @@ -120,15 +122,20 @@ void ExecutionEngine::addObjectFile(std::unique_ptr O) { llvm_unreachable("ExecutionEngine subclass doesn't implement addObjectFile."); } -void ExecutionEngine::addArchive(std::unique_ptr A) { +void +ExecutionEngine::addObjectFile(object::OwningBinary O) { + llvm_unreachable("ExecutionEngine subclass doesn't implement addObjectFile."); +} + +void ExecutionEngine::addArchive(object::OwningBinary A) { llvm_unreachable("ExecutionEngine subclass doesn't implement addArchive."); } bool ExecutionEngine::removeModule(Module *M) { - for(SmallVectorImpl::iterator I = Modules.begin(), - E = Modules.end(); I != E; ++I) { - Module *Found = *I; + for (auto I = Modules.begin(), E = Modules.end(); I != E; ++I) { + Module *Found = I->get(); if (Found == M) { + I->release(); Modules.erase(I); clearGlobalMappingsFromModule(M); return true; @@ -139,45 +146,60 @@ bool ExecutionEngine::removeModule(Module *M) { Function *ExecutionEngine::FindFunctionNamed(const char *FnName) { for (unsigned i = 0, e = Modules.size(); i != e; ++i) { - if (Function *F = Modules[i]->getFunction(FnName)) + Function *F = Modules[i]->getFunction(FnName); + if (F && !F->isDeclaration()) return F; } return nullptr; } -void *ExecutionEngineState::RemoveMapping(const GlobalValue *ToUnmap) { - GlobalAddressMapTy::iterator I = GlobalAddressMap.find(ToUnmap); - void *OldVal; +uint64_t ExecutionEngineState::RemoveMapping(StringRef Name) { + GlobalAddressMapTy::iterator I = GlobalAddressMap.find(Name); + uint64_t OldVal; // FIXME: This is silly, we shouldn't end up with a mapping -> 0 in the // GlobalAddressMap. if (I == GlobalAddressMap.end()) - OldVal = nullptr; + OldVal = 0; else { + GlobalAddressReverseMap.erase(I->second); OldVal = I->second; GlobalAddressMap.erase(I); } - GlobalAddressReverseMap.erase(OldVal); return OldVal; } +std::string ExecutionEngine::getMangledName(const GlobalValue *GV) { + MutexGuard locked(lock); + Mangler Mang(DL); + SmallString<128> FullName; + Mang.getNameWithPrefix(FullName, GV->getName()); + return FullName.str(); +} + void ExecutionEngine::addGlobalMapping(const GlobalValue *GV, void *Addr) { MutexGuard locked(lock); + addGlobalMapping(getMangledName(GV), (uint64_t) Addr); +} + +void ExecutionEngine::addGlobalMapping(StringRef Name, uint64_t Addr) { + MutexGuard locked(lock); - DEBUG(dbgs() << "JIT: Map \'" << GV->getName() - << "\' to [" << Addr << "]\n";); - void *&CurVal = EEState.getGlobalAddressMap()[GV]; + assert(!Name.empty() && "Empty GlobalMapping symbol name!"); + + DEBUG(dbgs() << "JIT: Map \'" << Name << "\' to [" << Addr << "]\n";); + uint64_t &CurVal = EEState.getGlobalAddressMap()[Name]; assert((!CurVal || !Addr) && "GlobalMapping already established!"); CurVal = Addr; // If we are using the reverse mapping, add it too. if (!EEState.getGlobalAddressReverseMap().empty()) { - AssertingVH &V = - EEState.getGlobalAddressReverseMap()[Addr]; - assert((!V || !GV) && "GlobalMapping already established!"); - V = GV; + std::string &V = EEState.getGlobalAddressReverseMap()[CurVal]; + assert((!V.empty() || !Name.empty()) && + "GlobalMapping already established!"); + V = Name; } } @@ -192,13 +214,19 @@ void ExecutionEngine::clearGlobalMappingsFromModule(Module *M) { MutexGuard locked(lock); for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ++FI) - EEState.RemoveMapping(FI); + EEState.RemoveMapping(getMangledName(FI)); for (Module::global_iterator GI = M->global_begin(), GE = M->global_end(); GI != GE; ++GI) - EEState.RemoveMapping(GI); + EEState.RemoveMapping(getMangledName(GI)); +} + +uint64_t ExecutionEngine::updateGlobalMapping(const GlobalValue *GV, + void *Addr) { + MutexGuard locked(lock); + return updateGlobalMapping(getMangledName(GV), (uint64_t) Addr); } -void *ExecutionEngine::updateGlobalMapping(const GlobalValue *GV, void *Addr) { +uint64_t ExecutionEngine::updateGlobalMapping(StringRef Name, uint64_t Addr) { MutexGuard locked(lock); ExecutionEngineState::GlobalAddressMapTy &Map = @@ -206,10 +234,10 @@ void *ExecutionEngine::updateGlobalMapping(const GlobalValue *GV, void *Addr) { // Deleting from the mapping? if (!Addr) - return EEState.RemoveMapping(GV); + return EEState.RemoveMapping(Name); - void *&CurVal = Map[GV]; - void *OldVal = CurVal; + uint64_t &CurVal = Map[Name]; + uint64_t OldVal = CurVal; if (CurVal && !EEState.getGlobalAddressReverseMap().empty()) EEState.getGlobalAddressReverseMap().erase(CurVal); @@ -217,20 +245,35 @@ void *ExecutionEngine::updateGlobalMapping(const GlobalValue *GV, void *Addr) { // If we are using the reverse mapping, add it too. if (!EEState.getGlobalAddressReverseMap().empty()) { - AssertingVH &V = - EEState.getGlobalAddressReverseMap()[Addr]; - assert((!V || !GV) && "GlobalMapping already established!"); - V = GV; + std::string &V = EEState.getGlobalAddressReverseMap()[CurVal]; + assert((!V.empty() || !Name.empty()) && + "GlobalMapping already established!"); + V = Name; } return OldVal; } -void *ExecutionEngine::getPointerToGlobalIfAvailable(const GlobalValue *GV) { +uint64_t ExecutionEngine::getAddressToGlobalIfAvailable(StringRef S) { MutexGuard locked(lock); - + uint64_t Address = 0; ExecutionEngineState::GlobalAddressMapTy::iterator I = - EEState.getGlobalAddressMap().find(GV); - return I != EEState.getGlobalAddressMap().end() ? I->second : nullptr; + EEState.getGlobalAddressMap().find(S); + if (I != EEState.getGlobalAddressMap().end()) + Address = I->second; + return Address; +} + + +void *ExecutionEngine::getPointerToGlobalIfAvailable(StringRef S) { + MutexGuard locked(lock); + if (void* Address = (void *) getAddressToGlobalIfAvailable(S)) + return Address; + return nullptr; +} + +void *ExecutionEngine::getPointerToGlobalIfAvailable(const GlobalValue *GV) { + MutexGuard locked(lock); + return getPointerToGlobalIfAvailable(getMangledName(GV)); } const GlobalValue *ExecutionEngine::getGlobalValueAtAddress(void *Addr) { @@ -239,32 +282,32 @@ const GlobalValue *ExecutionEngine::getGlobalValueAtAddress(void *Addr) { // If we haven't computed the reverse mapping yet, do so first. if (EEState.getGlobalAddressReverseMap().empty()) { for (ExecutionEngineState::GlobalAddressMapTy::iterator - I = EEState.getGlobalAddressMap().begin(), - E = EEState.getGlobalAddressMap().end(); I != E; ++I) + I = EEState.getGlobalAddressMap().begin(), + E = EEState.getGlobalAddressMap().end(); I != E; ++I) { + StringRef Name = I->first(); + uint64_t Addr = I->second; EEState.getGlobalAddressReverseMap().insert(std::make_pair( - I->second, I->first)); + Addr, Name)); + } } - std::map >::iterator I = - EEState.getGlobalAddressReverseMap().find(Addr); - return I != EEState.getGlobalAddressReverseMap().end() ? I->second : nullptr; + std::map::iterator I = + EEState.getGlobalAddressReverseMap().find((uint64_t) Addr); + + if (I != EEState.getGlobalAddressReverseMap().end()) { + StringRef Name = I->second; + for (unsigned i = 0, e = Modules.size(); i != e; ++i) + if (GlobalValue *GV = Modules[i]->getNamedValue(Name)) + return GV; + } + return nullptr; } namespace { class ArgvArray { - char *Array; - std::vector Values; + std::unique_ptr Array; + std::vector> Values; public: - ArgvArray() : Array(nullptr) {} - ~ArgvArray() { clear(); } - void clear() { - delete[] Array; - Array = nullptr; - for (size_t I = 0, E = Values.size(); I != E; ++I) { - delete[] Values[I]; - } - Values.clear(); - } /// Turn a vector of strings into a nice argv style array of pointers to null /// terminated strings. void *reset(LLVMContext &C, ExecutionEngine *EE, @@ -273,38 +316,39 @@ public: } // anonymous namespace void *ArgvArray::reset(LLVMContext &C, ExecutionEngine *EE, const std::vector &InputArgv) { - clear(); // Free the old contents. + Values.clear(); // Free the old contents. + Values.reserve(InputArgv.size()); unsigned PtrSize = EE->getDataLayout()->getPointerSize(); - Array = new char[(InputArgv.size()+1)*PtrSize]; + Array = make_unique((InputArgv.size()+1)*PtrSize); - DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array << "\n"); + DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array.get() << "\n"); Type *SBytePtr = Type::getInt8PtrTy(C); for (unsigned i = 0; i != InputArgv.size(); ++i) { unsigned Size = InputArgv[i].size()+1; - char *Dest = new char[Size]; - Values.push_back(Dest); - DEBUG(dbgs() << "JIT: ARGV[" << i << "] = " << (void*)Dest << "\n"); + auto Dest = make_unique(Size); + DEBUG(dbgs() << "JIT: ARGV[" << i << "] = " << (void*)Dest.get() << "\n"); - std::copy(InputArgv[i].begin(), InputArgv[i].end(), Dest); + std::copy(InputArgv[i].begin(), InputArgv[i].end(), Dest.get()); Dest[Size-1] = 0; // Endian safe: Array[i] = (PointerTy)Dest; - EE->StoreValueToMemory(PTOGV(Dest), (GenericValue*)(Array+i*PtrSize), - SBytePtr); + EE->StoreValueToMemory(PTOGV(Dest.get()), + (GenericValue*)(&Array[i*PtrSize]), SBytePtr); + Values.push_back(std::move(Dest)); } // Null terminate it EE->StoreValueToMemory(PTOGV(nullptr), - (GenericValue*)(Array+InputArgv.size()*PtrSize), + (GenericValue*)(&Array[InputArgv.size()*PtrSize]), SBytePtr); - return Array; + return Array.get(); } -void ExecutionEngine::runStaticConstructorsDestructors(Module *module, +void ExecutionEngine::runStaticConstructorsDestructors(Module &module, bool isDtors) { const char *Name = isDtors ? "llvm.global_dtors" : "llvm.global_ctors"; - GlobalVariable *GV = module->getNamedGlobal(Name); + GlobalVariable *GV = module.getNamedGlobal(Name); // If this global has internal linkage, or if it has a use, then it must be // an old-style (llvmgcc3) static ctor with __main linked in and in use. If @@ -342,8 +386,8 @@ void ExecutionEngine::runStaticConstructorsDestructors(Module *module, void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) { // Execute global ctors/dtors for each module in the program. - for (unsigned i = 0, e = Modules.size(); i != e; ++i) - runStaticConstructorsDestructors(Modules[i], isDtors); + for (std::unique_ptr &M : Modules) + runStaticConstructorsDestructors(*M, isDtors); } #ifndef NDEBUG @@ -404,16 +448,13 @@ int ExecutionEngine::runFunctionAsMain(Function *Fn, return runFunction(Fn, GVArgs).IntVal.getZExtValue(); } -void EngineBuilder::InitEngine() { - WhichEngine = EngineKind::Either; - ErrorStr = nullptr; - OptLevel = CodeGenOpt::Default; - MCJMM = nullptr; - JMM = nullptr; - Options = TargetOptions(); - RelocModel = Reloc::Default; - CMModel = CodeModel::JITDefault; +EngineBuilder::EngineBuilder() : EngineBuilder(nullptr) {} +EngineBuilder::EngineBuilder(std::unique_ptr M) + : M(std::move(M)), WhichEngine(EngineKind::Either), ErrorStr(nullptr), + OptLevel(CodeGenOpt::Default), MemMgr(nullptr), Resolver(nullptr), + RelocModel(Reloc::Default), CMModel(CodeModel::JITDefault), + UseOrcMCJITReplacement(false) { // IR module verification is enabled by default in debug builds, and disabled // by default in release builds. #ifndef NDEBUG @@ -423,6 +464,28 @@ void EngineBuilder::InitEngine() { #endif } +EngineBuilder::~EngineBuilder() = default; + +EngineBuilder &EngineBuilder::setMCJITMemoryManager( + std::unique_ptr mcjmm) { + auto SharedMM = std::shared_ptr(std::move(mcjmm)); + MemMgr = SharedMM; + Resolver = SharedMM; + return *this; +} + +EngineBuilder& +EngineBuilder::setMemoryManager(std::unique_ptr MM) { + MemMgr = std::shared_ptr(std::move(MM)); + return *this; +} + +EngineBuilder& +EngineBuilder::setSymbolResolver(std::unique_ptr SR) { + Resolver = std::shared_ptr(std::move(SR)); + return *this; +} + ExecutionEngine *EngineBuilder::create(TargetMachine *TM) { std::unique_ptr TheTM(TM); // Take ownership. @@ -430,13 +493,11 @@ ExecutionEngine *EngineBuilder::create(TargetMachine *TM) { // to the function tells DynamicLibrary to load the program, not a library. if (sys::DynamicLibrary::LoadLibraryPermanently(nullptr, ErrorStr)) return nullptr; - - assert(!(JMM && MCJMM)); // If the user specified a memory manager but didn't specify which engine to // create, we assume they only want the JIT, and we fail if they only want // the interpreter. - if (JMM || MCJMM) { + if (MemMgr) { if (WhichEngine & EngineKind::JIT) WhichEngine = EngineKind::JIT; else { @@ -457,9 +518,14 @@ ExecutionEngine *EngineBuilder::create(TargetMachine *TM) { } ExecutionEngine *EE = nullptr; - if (ExecutionEngine::MCJITCtor) - EE = ExecutionEngine::MCJITCtor(M, ErrorStr, MCJMM ? MCJMM : JMM, - TheTM.release()); + if (ExecutionEngine::OrcMCJITReplacementCtor && UseOrcMCJITReplacement) { + EE = ExecutionEngine::OrcMCJITReplacementCtor(ErrorStr, std::move(MemMgr), + std::move(Resolver), + std::move(TheTM)); + EE->addModule(std::move(M)); + } else if (ExecutionEngine::MCJITCtor) + EE = ExecutionEngine::MCJITCtor(std::move(M), ErrorStr, std::move(MemMgr), + std::move(Resolver), std::move(TheTM)); if (EE) { EE->setVerifyModules(VerifyModules); @@ -471,7 +537,7 @@ ExecutionEngine *EngineBuilder::create(TargetMachine *TM) { // an interpreter instead. if (WhichEngine & EngineKind::Interpreter) { if (ExecutionEngine::InterpCtor) - return ExecutionEngine::InterpCtor(M, ErrorStr); + return ExecutionEngine::InterpCtor(std::move(M), ErrorStr); if (ErrorStr) *ErrorStr = "Interpreter has not been linked in."; return nullptr; @@ -490,7 +556,7 @@ void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) { return getPointerToFunction(F); MutexGuard locked(lock); - if (void *P = EEState.getGlobalAddressMap()[GV]) + if (void* P = getPointerToGlobalIfAvailable(GV)) return P; // Global variable might have been added since interpreter started. @@ -500,7 +566,7 @@ void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) { else llvm_unreachable("Global hasn't had an address allocated yet!"); - return EEState.getGlobalAddressMap()[GV]; + return getPointerToGlobalIfAvailable(GV); } /// \brief Converts a Constant* into a GenericValue, including handling of @@ -1272,25 +1338,3 @@ void ExecutionEngine::EmitGlobalVariable(const GlobalVariable *GV) { NumInitBytes += (unsigned)GVSize; ++NumGlobals; } - -ExecutionEngineState::ExecutionEngineState(ExecutionEngine &EE) - : EE(EE), GlobalAddressMap(this) { -} - -sys::Mutex * -ExecutionEngineState::AddressMapConfig::getMutex(ExecutionEngineState *EES) { - return &EES->EE.lock; -} - -void ExecutionEngineState::AddressMapConfig::onDelete(ExecutionEngineState *EES, - const GlobalValue *Old) { - void *OldVal = EES->GlobalAddressMap.lookup(Old); - EES->GlobalAddressReverseMap.erase(OldVal); -} - -void ExecutionEngineState::AddressMapConfig::onRAUW(ExecutionEngineState *, - const GlobalValue *, - const GlobalValue *) { - llvm_unreachable("The ExecutionEngine doesn't know how to handle a" - " RAUW on a value it has a global mapping for."); -}