77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
//===----------- ChildTarget.cpp - Out-of-proc executor for lli -----------===//
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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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// Simple out-of-process executor for lli.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.h"
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#include "llvm/ExecutionEngine/Orc/TargetProcess/RegisterEHFrames.h"
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#include "llvm/ExecutionEngine/Orc/TargetProcess/SimpleExecutorMemoryManager.h"
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#include "llvm/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstring>
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#include <sstream>
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using namespace llvm;
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using namespace llvm::orc;
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ExitOnError ExitOnErr;
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int main(int argc, char *argv[]) {
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#if LLVM_ENABLE_THREADS
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if (argc != 3) {
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errs() << "Usage: " << argv[0] << " <input fd> <output fd>\n";
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return 1;
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}
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if (sys::DynamicLibrary::LoadLibraryPermanently(nullptr)) {
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errs() << "Error loading program symbols.\n";
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return 1;
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}
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ExitOnErr.setBanner(std::string(argv[0]) + ": ");
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int InFD = 0;
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int OutFD = 0;
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{
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std::istringstream InFDStream(argv[1]), OutFDStream(argv[2]);
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InFDStream >> InFD;
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OutFDStream >> OutFD;
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}
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auto Server =
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ExitOnErr(SimpleRemoteEPCServer::Create<FDSimpleRemoteEPCTransport>(
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[](SimpleRemoteEPCServer::Setup &S) -> Error {
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S.setDispatcher(
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std::make_unique<SimpleRemoteEPCServer::ThreadDispatcher>());
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S.bootstrapSymbols() =
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SimpleRemoteEPCServer::defaultBootstrapSymbols();
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S.services().push_back(
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std::make_unique<rt_bootstrap::SimpleExecutorMemoryManager>());
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return Error::success();
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},
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InFD, OutFD));
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ExitOnErr(Server->waitForDisconnect());
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return 0;
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#else
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errs() << argv[0]
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<< " error: this tool requires threads, but LLVM was "
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"built with LLVM_ENABLE_THREADS=Off\n";
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return 1;
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#endif
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}
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