2018-05-22 07:45:40 +08:00
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//===-- RTDyldObjectLinkingLayer.cpp - RuntimeDyld backed ORC ObjectLayer -===//
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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 "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
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namespace llvm {
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namespace orc {
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RTDyldObjectLinkingLayer2::RTDyldObjectLinkingLayer2(
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ExecutionSession &ES, ResourcesGetterFunction GetResources,
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NotifyLoadedFunction NotifyLoaded, NotifyFinalizedFunction NotifyFinalized)
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: ObjectLayer(ES), GetResources(std::move(GetResources)),
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NotifyLoaded(std::move(NotifyLoaded)),
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NotifyFinalized(std::move(NotifyFinalized)), ProcessAllSections(false) {}
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void RTDyldObjectLinkingLayer2::emit(MaterializationResponsibility R,
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VModuleKey K,
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std::unique_ptr<MemoryBuffer> O) {
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2018-05-24 05:27:01 +08:00
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assert(O && "Object must not be null");
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2018-05-22 07:45:40 +08:00
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auto &ES = getExecutionSession();
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auto ObjFile = object::ObjectFile::createObjectFile(*O);
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if (!ObjFile) {
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getExecutionSession().reportError(ObjFile.takeError());
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R.failMaterialization();
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}
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auto Resources = GetResources(K);
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JITSymbolResolverAdapter ResolverAdapter(ES, *Resources.Resolver, &R);
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auto RTDyld =
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llvm::make_unique<RuntimeDyld>(*Resources.MemMgr, ResolverAdapter);
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RTDyld->setProcessAllSections(ProcessAllSections);
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{
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std::lock_guard<std::mutex> Lock(RTDyldLayerMutex);
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assert(!ActiveRTDylds.count(K) &&
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"An active RTDyld already exists for this key?");
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ActiveRTDylds[K] = RTDyld.get();
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assert(!MemMgrs.count(K) &&
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"A memory manager already exists for this key?");
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MemMgrs[K] = Resources.MemMgr;
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}
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auto Info = RTDyld->loadObject(**ObjFile);
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{
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SymbolMap Symbols;
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for (auto &KV : RTDyld->getSymbolTable())
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Symbols[ES.getSymbolStringPool().intern(KV.first)] = KV.second;
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R.resolve(Symbols);
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}
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if (NotifyLoaded)
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NotifyLoaded(K, **ObjFile, *Info);
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RTDyld->finalizeWithMemoryManagerLocking();
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{
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std::lock_guard<std::mutex> Lock(RTDyldLayerMutex);
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ActiveRTDylds.erase(K);
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}
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if (RTDyld->hasError()) {
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ES.reportError(make_error<StringError>(RTDyld->getErrorString(),
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inconvertibleErrorCode()));
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R.failMaterialization();
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}
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R.finalize();
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if (NotifyFinalized)
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NotifyFinalized(K);
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}
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void RTDyldObjectLinkingLayer2::mapSectionAddress(
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VModuleKey K, const void *LocalAddress, JITTargetAddress TargetAddr) const {
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std::lock_guard<std::mutex> Lock(RTDyldLayerMutex);
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auto ActiveRTDyldItr = ActiveRTDylds.find(K);
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assert(ActiveRTDyldItr != ActiveRTDylds.end() &&
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"No active RTDyld instance found for key");
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ActiveRTDyldItr->second->mapSectionAddress(LocalAddress, TargetAddr);
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}
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} // End namespace orc.
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} // End namespace llvm.
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