9de8b05bfe
Supports destructors of global objects by properly calling jitdylib deinitialize which calls the global dtors of ir modules. This supersedes https://reviews.llvm.org/D127945. There was an issue when calling deinitialize on windows but it got fixed by https://reviews.llvm.org/D128037. Reviewed By: v.g.vassilev Differential Revision: https://reviews.llvm.org/D128589
81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
//===--- IncrementalExecutor.cpp - Incremental Execution --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the class which performs incremental code execution.
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//
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//===----------------------------------------------------------------------===//
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#include "IncrementalExecutor.h"
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#include "llvm/ExecutionEngine/ExecutionEngine.h"
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#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
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#include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
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#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
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#include "llvm/ExecutionEngine/Orc/LLJIT.h"
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#include "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
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#include "llvm/ExecutionEngine/SectionMemoryManager.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/TargetSelect.h"
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namespace clang {
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IncrementalExecutor::IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC,
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llvm::Error &Err,
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const llvm::Triple &Triple)
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: TSCtx(TSC) {
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using namespace llvm::orc;
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llvm::ErrorAsOutParameter EAO(&Err);
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auto JTMB = JITTargetMachineBuilder(Triple);
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if (auto JitOrErr = LLJITBuilder().setJITTargetMachineBuilder(JTMB).create())
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Jit = std::move(*JitOrErr);
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else {
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Err = JitOrErr.takeError();
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return;
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}
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const char Pref = Jit->getDataLayout().getGlobalPrefix();
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// Discover symbols from the process as a fallback.
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if (auto PSGOrErr = DynamicLibrarySearchGenerator::GetForCurrentProcess(Pref))
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Jit->getMainJITDylib().addGenerator(std::move(*PSGOrErr));
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else {
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Err = PSGOrErr.takeError();
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return;
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}
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}
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IncrementalExecutor::~IncrementalExecutor() {}
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// Clean up the JIT instance.
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llvm::Error IncrementalExecutor::cleanUp() {
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// This calls the global dtors of registered modules.
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return Jit->deinitialize(Jit->getMainJITDylib());
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}
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llvm::Error IncrementalExecutor::addModule(std::unique_ptr<llvm::Module> M) {
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return Jit->addIRModule(llvm::orc::ThreadSafeModule(std::move(M), TSCtx));
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}
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llvm::Error IncrementalExecutor::runCtors() const {
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return Jit->initialize(Jit->getMainJITDylib());
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}
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llvm::Expected<llvm::JITTargetAddress>
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IncrementalExecutor::getSymbolAddress(llvm::StringRef Name,
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SymbolNameKind NameKind) const {
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auto Sym = (NameKind == LinkerName) ? Jit->lookupLinkerMangled(Name)
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: Jit->lookup(Name);
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if (!Sym)
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return Sym.takeError();
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return Sym->getValue();
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}
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} // end namespace clang
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