660 lines
22 KiB
C++
660 lines
22 KiB
C++
//===-- MCJIT.cpp - MC-based Just-in-Time Compiler ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "MCJIT.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ExecutionEngine/GenericValue.h"
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#include "llvm/ExecutionEngine/JITEventListener.h"
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#include "llvm/ExecutionEngine/MCJIT.h"
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#include "llvm/ExecutionEngine/SectionMemoryManager.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/LegacyPassManager.h"
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#include "llvm/IR/Mangler.h"
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#include "llvm/IR/Module.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/Object/Archive.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/MutexGuard.h"
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using namespace llvm;
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void ObjectCache::anchor() {}
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namespace {
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static struct RegisterJIT {
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RegisterJIT() { MCJIT::Register(); }
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} JITRegistrator;
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}
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extern "C" void LLVMLinkInMCJIT() {
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}
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ExecutionEngine*
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MCJIT::createJIT(std::unique_ptr<Module> M,
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std::string *ErrorStr,
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std::shared_ptr<MCJITMemoryManager> MemMgr,
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std::shared_ptr<RuntimeDyld::SymbolResolver> Resolver,
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std::unique_ptr<TargetMachine> TM) {
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// Try to register the program as a source of symbols to resolve against.
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//
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// FIXME: Don't do this here.
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sys::DynamicLibrary::LoadLibraryPermanently(nullptr, nullptr);
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if (!MemMgr || !Resolver) {
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auto RTDyldMM = std::make_shared<SectionMemoryManager>();
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if (!MemMgr)
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MemMgr = RTDyldMM;
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if (!Resolver)
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Resolver = RTDyldMM;
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}
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return new MCJIT(std::move(M), std::move(TM), std::move(MemMgr),
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std::move(Resolver));
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}
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MCJIT::MCJIT(std::unique_ptr<Module> M, std::unique_ptr<TargetMachine> TM,
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std::shared_ptr<MCJITMemoryManager> MemMgr,
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std::shared_ptr<RuntimeDyld::SymbolResolver> Resolver)
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: ExecutionEngine(TM->createDataLayout(), std::move(M)), TM(std::move(TM)),
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Ctx(nullptr), MemMgr(std::move(MemMgr)),
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Resolver(*this, std::move(Resolver)), Dyld(*this->MemMgr, this->Resolver),
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ObjCache(nullptr) {
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// FIXME: We are managing our modules, so we do not want the base class
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// ExecutionEngine to manage them as well. To avoid double destruction
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// of the first (and only) module added in ExecutionEngine constructor
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// we remove it from EE and will destruct it ourselves.
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//
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// It may make sense to move our module manager (based on SmallStPtr) back
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// into EE if the JIT and Interpreter can live with it.
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// If so, additional functions: addModule, removeModule, FindFunctionNamed,
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// runStaticConstructorsDestructors could be moved back to EE as well.
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//
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std::unique_ptr<Module> First = std::move(Modules[0]);
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Modules.clear();
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if (First->getDataLayout().isDefault())
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First->setDataLayout(getDataLayout());
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OwnedModules.addModule(std::move(First));
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RegisterJITEventListener(JITEventListener::createGDBRegistrationListener());
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}
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MCJIT::~MCJIT() {
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MutexGuard locked(lock);
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Dyld.deregisterEHFrames();
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for (auto &Obj : LoadedObjects)
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if (Obj)
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NotifyFreeingObject(*Obj);
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Archives.clear();
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}
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void MCJIT::addModule(std::unique_ptr<Module> M) {
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MutexGuard locked(lock);
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if (M->getDataLayout().isDefault())
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M->setDataLayout(getDataLayout());
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OwnedModules.addModule(std::move(M));
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}
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bool MCJIT::removeModule(Module *M) {
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MutexGuard locked(lock);
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return OwnedModules.removeModule(M);
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}
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void MCJIT::addObjectFile(std::unique_ptr<object::ObjectFile> Obj) {
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std::unique_ptr<RuntimeDyld::LoadedObjectInfo> L = Dyld.loadObject(*Obj);
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if (Dyld.hasError())
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report_fatal_error(Dyld.getErrorString());
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NotifyObjectEmitted(*Obj, *L);
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LoadedObjects.push_back(std::move(Obj));
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}
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void MCJIT::addObjectFile(object::OwningBinary<object::ObjectFile> Obj) {
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std::unique_ptr<object::ObjectFile> ObjFile;
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std::unique_ptr<MemoryBuffer> MemBuf;
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std::tie(ObjFile, MemBuf) = Obj.takeBinary();
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addObjectFile(std::move(ObjFile));
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Buffers.push_back(std::move(MemBuf));
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}
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void MCJIT::addArchive(object::OwningBinary<object::Archive> A) {
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Archives.push_back(std::move(A));
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}
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void MCJIT::setObjectCache(ObjectCache* NewCache) {
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MutexGuard locked(lock);
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ObjCache = NewCache;
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}
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std::unique_ptr<MemoryBuffer> MCJIT::emitObject(Module *M) {
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MutexGuard locked(lock);
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// This must be a module which has already been added but not loaded to this
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// MCJIT instance, since these conditions are tested by our caller,
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// generateCodeForModule.
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legacy::PassManager PM;
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// The RuntimeDyld will take ownership of this shortly
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SmallVector<char, 4096> ObjBufferSV;
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raw_svector_ostream ObjStream(ObjBufferSV);
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// Turn the machine code intermediate representation into bytes in memory
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// that may be executed.
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if (TM->addPassesToEmitMC(PM, Ctx, ObjStream, !getVerifyModules()))
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report_fatal_error("Target does not support MC emission!");
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// Initialize passes.
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PM.run(*M);
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// Flush the output buffer to get the generated code into memory
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std::unique_ptr<MemoryBuffer> CompiledObjBuffer(
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new ObjectMemoryBuffer(std::move(ObjBufferSV)));
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// If we have an object cache, tell it about the new object.
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// Note that we're using the compiled image, not the loaded image (as below).
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if (ObjCache) {
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// MemoryBuffer is a thin wrapper around the actual memory, so it's OK
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// to create a temporary object here and delete it after the call.
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MemoryBufferRef MB = CompiledObjBuffer->getMemBufferRef();
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ObjCache->notifyObjectCompiled(M, MB);
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}
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return CompiledObjBuffer;
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}
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void MCJIT::generateCodeForModule(Module *M) {
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// Get a thread lock to make sure we aren't trying to load multiple times
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MutexGuard locked(lock);
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// This must be a module which has already been added to this MCJIT instance.
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assert(OwnedModules.ownsModule(M) &&
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"MCJIT::generateCodeForModule: Unknown module.");
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// Re-compilation is not supported
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if (OwnedModules.hasModuleBeenLoaded(M))
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return;
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std::unique_ptr<MemoryBuffer> ObjectToLoad;
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// Try to load the pre-compiled object from cache if possible
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if (ObjCache)
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ObjectToLoad = ObjCache->getObject(M);
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assert(M->getDataLayout() == getDataLayout() && "DataLayout Mismatch");
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// If the cache did not contain a suitable object, compile the object
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if (!ObjectToLoad) {
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ObjectToLoad = emitObject(M);
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assert(ObjectToLoad && "Compilation did not produce an object.");
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}
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// Load the object into the dynamic linker.
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// MCJIT now owns the ObjectImage pointer (via its LoadedObjects list).
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Expected<std::unique_ptr<object::ObjectFile>> LoadedObject =
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object::ObjectFile::createObjectFile(ObjectToLoad->getMemBufferRef());
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if (!LoadedObject) {
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std::string Buf;
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raw_string_ostream OS(Buf);
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logAllUnhandledErrors(LoadedObject.takeError(), OS, "");
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OS.flush();
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report_fatal_error(Buf);
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}
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std::unique_ptr<RuntimeDyld::LoadedObjectInfo> L =
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Dyld.loadObject(*LoadedObject.get());
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if (Dyld.hasError())
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report_fatal_error(Dyld.getErrorString());
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NotifyObjectEmitted(*LoadedObject.get(), *L);
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Buffers.push_back(std::move(ObjectToLoad));
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LoadedObjects.push_back(std::move(*LoadedObject));
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OwnedModules.markModuleAsLoaded(M);
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}
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void MCJIT::finalizeLoadedModules() {
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MutexGuard locked(lock);
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// Resolve any outstanding relocations.
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Dyld.resolveRelocations();
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OwnedModules.markAllLoadedModulesAsFinalized();
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// Register EH frame data for any module we own which has been loaded
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Dyld.registerEHFrames();
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// Set page permissions.
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MemMgr->finalizeMemory();
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}
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// FIXME: Rename this.
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void MCJIT::finalizeObject() {
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MutexGuard locked(lock);
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// Generate code for module is going to move objects out of the 'added' list,
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// so we need to copy that out before using it:
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SmallVector<Module*, 16> ModsToAdd;
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for (auto M : OwnedModules.added())
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ModsToAdd.push_back(M);
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for (auto M : ModsToAdd)
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generateCodeForModule(M);
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finalizeLoadedModules();
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}
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void MCJIT::finalizeModule(Module *M) {
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MutexGuard locked(lock);
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// This must be a module which has already been added to this MCJIT instance.
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assert(OwnedModules.ownsModule(M) && "MCJIT::finalizeModule: Unknown module.");
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// If the module hasn't been compiled, just do that.
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if (!OwnedModules.hasModuleBeenLoaded(M))
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generateCodeForModule(M);
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finalizeLoadedModules();
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}
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RuntimeDyld::SymbolInfo MCJIT::findExistingSymbol(const std::string &Name) {
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SmallString<128> FullName;
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Mangler::getNameWithPrefix(FullName, Name, getDataLayout());
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if (void *Addr = getPointerToGlobalIfAvailable(FullName))
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return RuntimeDyld::SymbolInfo(static_cast<uint64_t>(
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reinterpret_cast<uintptr_t>(Addr)),
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JITSymbolFlags::Exported);
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return Dyld.getSymbol(FullName);
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}
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Module *MCJIT::findModuleForSymbol(const std::string &Name,
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bool CheckFunctionsOnly) {
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MutexGuard locked(lock);
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// If it hasn't already been generated, see if it's in one of our modules.
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for (ModulePtrSet::iterator I = OwnedModules.begin_added(),
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E = OwnedModules.end_added();
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I != E; ++I) {
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Module *M = *I;
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Function *F = M->getFunction(Name);
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if (F && !F->isDeclaration())
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return M;
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if (!CheckFunctionsOnly) {
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GlobalVariable *G = M->getGlobalVariable(Name);
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if (G && !G->isDeclaration())
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return M;
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// FIXME: Do we need to worry about global aliases?
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}
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}
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// We didn't find the symbol in any of our modules.
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return nullptr;
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}
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uint64_t MCJIT::getSymbolAddress(const std::string &Name,
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bool CheckFunctionsOnly) {
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return findSymbol(Name, CheckFunctionsOnly).getAddress();
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}
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RuntimeDyld::SymbolInfo MCJIT::findSymbol(const std::string &Name,
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bool CheckFunctionsOnly) {
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MutexGuard locked(lock);
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// First, check to see if we already have this symbol.
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if (auto Sym = findExistingSymbol(Name))
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return Sym;
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for (object::OwningBinary<object::Archive> &OB : Archives) {
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object::Archive *A = OB.getBinary();
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// Look for our symbols in each Archive
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auto OptionalChildOrErr = A->findSym(Name);
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if (!OptionalChildOrErr)
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report_fatal_error(OptionalChildOrErr.takeError());
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auto &OptionalChild = *OptionalChildOrErr;
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if (OptionalChild) {
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// FIXME: Support nested archives?
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Expected<std::unique_ptr<object::Binary>> ChildBinOrErr =
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OptionalChild->getAsBinary();
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if (!ChildBinOrErr) {
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// TODO: Actually report errors helpfully.
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consumeError(ChildBinOrErr.takeError());
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continue;
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}
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std::unique_ptr<object::Binary> &ChildBin = ChildBinOrErr.get();
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if (ChildBin->isObject()) {
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std::unique_ptr<object::ObjectFile> OF(
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static_cast<object::ObjectFile *>(ChildBin.release()));
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// This causes the object file to be loaded.
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addObjectFile(std::move(OF));
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// The address should be here now.
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if (auto Sym = findExistingSymbol(Name))
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return Sym;
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}
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}
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}
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// If it hasn't already been generated, see if it's in one of our modules.
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Module *M = findModuleForSymbol(Name, CheckFunctionsOnly);
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if (M) {
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generateCodeForModule(M);
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// Check the RuntimeDyld table again, it should be there now.
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return findExistingSymbol(Name);
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}
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// If a LazyFunctionCreator is installed, use it to get/create the function.
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// FIXME: Should we instead have a LazySymbolCreator callback?
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if (LazyFunctionCreator) {
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auto Addr = static_cast<uint64_t>(
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reinterpret_cast<uintptr_t>(LazyFunctionCreator(Name)));
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return RuntimeDyld::SymbolInfo(Addr, JITSymbolFlags::Exported);
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}
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return nullptr;
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}
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uint64_t MCJIT::getGlobalValueAddress(const std::string &Name) {
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MutexGuard locked(lock);
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uint64_t Result = getSymbolAddress(Name, false);
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if (Result != 0)
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finalizeLoadedModules();
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return Result;
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}
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uint64_t MCJIT::getFunctionAddress(const std::string &Name) {
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MutexGuard locked(lock);
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uint64_t Result = getSymbolAddress(Name, true);
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if (Result != 0)
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finalizeLoadedModules();
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return Result;
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}
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// Deprecated. Use getFunctionAddress instead.
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void *MCJIT::getPointerToFunction(Function *F) {
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MutexGuard locked(lock);
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Mangler Mang;
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SmallString<128> Name;
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TM->getNameWithPrefix(Name, F, Mang);
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if (F->isDeclaration() || F->hasAvailableExternallyLinkage()) {
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bool AbortOnFailure = !F->hasExternalWeakLinkage();
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void *Addr = getPointerToNamedFunction(Name, AbortOnFailure);
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updateGlobalMapping(F, Addr);
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return Addr;
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}
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Module *M = F->getParent();
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bool HasBeenAddedButNotLoaded = OwnedModules.hasModuleBeenAddedButNotLoaded(M);
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// Make sure the relevant module has been compiled and loaded.
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if (HasBeenAddedButNotLoaded)
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generateCodeForModule(M);
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else if (!OwnedModules.hasModuleBeenLoaded(M)) {
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// If this function doesn't belong to one of our modules, we're done.
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// FIXME: Asking for the pointer to a function that hasn't been registered,
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// and isn't a declaration (which is handled above) should probably
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// be an assertion.
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return nullptr;
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}
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// FIXME: Should the Dyld be retaining module information? Probably not.
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//
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// This is the accessor for the target address, so make sure to check the
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// load address of the symbol, not the local address.
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return (void*)Dyld.getSymbol(Name).getAddress();
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}
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void MCJIT::runStaticConstructorsDestructorsInModulePtrSet(
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bool isDtors, ModulePtrSet::iterator I, ModulePtrSet::iterator E) {
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for (; I != E; ++I) {
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ExecutionEngine::runStaticConstructorsDestructors(**I, isDtors);
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}
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}
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void MCJIT::runStaticConstructorsDestructors(bool isDtors) {
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// Execute global ctors/dtors for each module in the program.
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runStaticConstructorsDestructorsInModulePtrSet(
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isDtors, OwnedModules.begin_added(), OwnedModules.end_added());
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runStaticConstructorsDestructorsInModulePtrSet(
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isDtors, OwnedModules.begin_loaded(), OwnedModules.end_loaded());
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runStaticConstructorsDestructorsInModulePtrSet(
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isDtors, OwnedModules.begin_finalized(), OwnedModules.end_finalized());
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}
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Function *MCJIT::FindFunctionNamedInModulePtrSet(const char *FnName,
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ModulePtrSet::iterator I,
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ModulePtrSet::iterator E) {
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for (; I != E; ++I) {
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Function *F = (*I)->getFunction(FnName);
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if (F && !F->isDeclaration())
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return F;
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}
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return nullptr;
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}
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GlobalVariable *MCJIT::FindGlobalVariableNamedInModulePtrSet(const char *Name,
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bool AllowInternal,
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ModulePtrSet::iterator I,
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ModulePtrSet::iterator E) {
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for (; I != E; ++I) {
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GlobalVariable *GV = (*I)->getGlobalVariable(Name, AllowInternal);
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if (GV && !GV->isDeclaration())
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return GV;
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}
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return nullptr;
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}
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Function *MCJIT::FindFunctionNamed(const char *FnName) {
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Function *F = FindFunctionNamedInModulePtrSet(
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FnName, OwnedModules.begin_added(), OwnedModules.end_added());
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if (!F)
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F = FindFunctionNamedInModulePtrSet(FnName, OwnedModules.begin_loaded(),
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OwnedModules.end_loaded());
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if (!F)
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F = FindFunctionNamedInModulePtrSet(FnName, OwnedModules.begin_finalized(),
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OwnedModules.end_finalized());
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return F;
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}
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GlobalVariable *MCJIT::FindGlobalVariableNamed(const char *Name, bool AllowInternal) {
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GlobalVariable *GV = FindGlobalVariableNamedInModulePtrSet(
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Name, AllowInternal, OwnedModules.begin_added(), OwnedModules.end_added());
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if (!GV)
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GV = FindGlobalVariableNamedInModulePtrSet(Name, AllowInternal, OwnedModules.begin_loaded(),
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OwnedModules.end_loaded());
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if (!GV)
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GV = FindGlobalVariableNamedInModulePtrSet(Name, AllowInternal, OwnedModules.begin_finalized(),
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OwnedModules.end_finalized());
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return GV;
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}
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GenericValue MCJIT::runFunction(Function *F, ArrayRef<GenericValue> ArgValues) {
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assert(F && "Function *F was null at entry to run()");
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void *FPtr = getPointerToFunction(F);
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finalizeModule(F->getParent());
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assert(FPtr && "Pointer to fn's code was null after getPointerToFunction");
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FunctionType *FTy = F->getFunctionType();
|
|
Type *RetTy = FTy->getReturnType();
|
|
|
|
assert((FTy->getNumParams() == ArgValues.size() ||
|
|
(FTy->isVarArg() && FTy->getNumParams() <= ArgValues.size())) &&
|
|
"Wrong number of arguments passed into function!");
|
|
assert(FTy->getNumParams() == ArgValues.size() &&
|
|
"This doesn't support passing arguments through varargs (yet)!");
|
|
|
|
// Handle some common cases first. These cases correspond to common `main'
|
|
// prototypes.
|
|
if (RetTy->isIntegerTy(32) || RetTy->isVoidTy()) {
|
|
switch (ArgValues.size()) {
|
|
case 3:
|
|
if (FTy->getParamType(0)->isIntegerTy(32) &&
|
|
FTy->getParamType(1)->isPointerTy() &&
|
|
FTy->getParamType(2)->isPointerTy()) {
|
|
int (*PF)(int, char **, const char **) =
|
|
(int(*)(int, char **, const char **))(intptr_t)FPtr;
|
|
|
|
// Call the function.
|
|
GenericValue rv;
|
|
rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(),
|
|
(char **)GVTOP(ArgValues[1]),
|
|
(const char **)GVTOP(ArgValues[2])));
|
|
return rv;
|
|
}
|
|
break;
|
|
case 2:
|
|
if (FTy->getParamType(0)->isIntegerTy(32) &&
|
|
FTy->getParamType(1)->isPointerTy()) {
|
|
int (*PF)(int, char **) = (int(*)(int, char **))(intptr_t)FPtr;
|
|
|
|
// Call the function.
|
|
GenericValue rv;
|
|
rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(),
|
|
(char **)GVTOP(ArgValues[1])));
|
|
return rv;
|
|
}
|
|
break;
|
|
case 1:
|
|
if (FTy->getNumParams() == 1 &&
|
|
FTy->getParamType(0)->isIntegerTy(32)) {
|
|
GenericValue rv;
|
|
int (*PF)(int) = (int(*)(int))(intptr_t)FPtr;
|
|
rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue()));
|
|
return rv;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Handle cases where no arguments are passed first.
|
|
if (ArgValues.empty()) {
|
|
GenericValue rv;
|
|
switch (RetTy->getTypeID()) {
|
|
default: llvm_unreachable("Unknown return type for function call!");
|
|
case Type::IntegerTyID: {
|
|
unsigned BitWidth = cast<IntegerType>(RetTy)->getBitWidth();
|
|
if (BitWidth == 1)
|
|
rv.IntVal = APInt(BitWidth, ((bool(*)())(intptr_t)FPtr)());
|
|
else if (BitWidth <= 8)
|
|
rv.IntVal = APInt(BitWidth, ((char(*)())(intptr_t)FPtr)());
|
|
else if (BitWidth <= 16)
|
|
rv.IntVal = APInt(BitWidth, ((short(*)())(intptr_t)FPtr)());
|
|
else if (BitWidth <= 32)
|
|
rv.IntVal = APInt(BitWidth, ((int(*)())(intptr_t)FPtr)());
|
|
else if (BitWidth <= 64)
|
|
rv.IntVal = APInt(BitWidth, ((int64_t(*)())(intptr_t)FPtr)());
|
|
else
|
|
llvm_unreachable("Integer types > 64 bits not supported");
|
|
return rv;
|
|
}
|
|
case Type::VoidTyID:
|
|
rv.IntVal = APInt(32, ((int(*)())(intptr_t)FPtr)());
|
|
return rv;
|
|
case Type::FloatTyID:
|
|
rv.FloatVal = ((float(*)())(intptr_t)FPtr)();
|
|
return rv;
|
|
case Type::DoubleTyID:
|
|
rv.DoubleVal = ((double(*)())(intptr_t)FPtr)();
|
|
return rv;
|
|
case Type::X86_FP80TyID:
|
|
case Type::FP128TyID:
|
|
case Type::PPC_FP128TyID:
|
|
llvm_unreachable("long double not supported yet");
|
|
case Type::PointerTyID:
|
|
return PTOGV(((void*(*)())(intptr_t)FPtr)());
|
|
}
|
|
}
|
|
|
|
llvm_unreachable("Full-featured argument passing not supported yet!");
|
|
}
|
|
|
|
void *MCJIT::getPointerToNamedFunction(StringRef Name, bool AbortOnFailure) {
|
|
if (!isSymbolSearchingDisabled()) {
|
|
void *ptr =
|
|
reinterpret_cast<void*>(
|
|
static_cast<uintptr_t>(Resolver.findSymbol(Name).getAddress()));
|
|
if (ptr)
|
|
return ptr;
|
|
}
|
|
|
|
/// If a LazyFunctionCreator is installed, use it to get/create the function.
|
|
if (LazyFunctionCreator)
|
|
if (void *RP = LazyFunctionCreator(Name))
|
|
return RP;
|
|
|
|
if (AbortOnFailure) {
|
|
report_fatal_error("Program used external function '"+Name+
|
|
"' which could not be resolved!");
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void MCJIT::RegisterJITEventListener(JITEventListener *L) {
|
|
if (!L)
|
|
return;
|
|
MutexGuard locked(lock);
|
|
EventListeners.push_back(L);
|
|
}
|
|
|
|
void MCJIT::UnregisterJITEventListener(JITEventListener *L) {
|
|
if (!L)
|
|
return;
|
|
MutexGuard locked(lock);
|
|
auto I = std::find(EventListeners.rbegin(), EventListeners.rend(), L);
|
|
if (I != EventListeners.rend()) {
|
|
std::swap(*I, EventListeners.back());
|
|
EventListeners.pop_back();
|
|
}
|
|
}
|
|
|
|
void MCJIT::NotifyObjectEmitted(const object::ObjectFile& Obj,
|
|
const RuntimeDyld::LoadedObjectInfo &L) {
|
|
MutexGuard locked(lock);
|
|
MemMgr->notifyObjectLoaded(this, Obj);
|
|
for (unsigned I = 0, S = EventListeners.size(); I < S; ++I) {
|
|
EventListeners[I]->NotifyObjectEmitted(Obj, L);
|
|
}
|
|
}
|
|
|
|
void MCJIT::NotifyFreeingObject(const object::ObjectFile& Obj) {
|
|
MutexGuard locked(lock);
|
|
for (JITEventListener *L : EventListeners)
|
|
L->NotifyFreeingObject(Obj);
|
|
}
|
|
|
|
RuntimeDyld::SymbolInfo
|
|
LinkingSymbolResolver::findSymbol(const std::string &Name) {
|
|
auto Result = ParentEngine.findSymbol(Name, false);
|
|
// If the symbols wasn't found and it begins with an underscore, try again
|
|
// without the underscore.
|
|
if (!Result && Name[0] == '_')
|
|
Result = ParentEngine.findSymbol(Name.substr(1), false);
|
|
if (Result)
|
|
return Result;
|
|
if (ParentEngine.isSymbolSearchingDisabled())
|
|
return nullptr;
|
|
return ClientResolver->findSymbol(Name);
|
|
}
|