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//===----------- ChildTarget.cpp - Out-of-proc executor for lli -----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Simple out-of-process executor for lli.
//
//===----------------------------------------------------------------------===//
#include "llvm/Config/llvm-config.h" // for LLVM_ENABLE_THREADS
#include "llvm/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.h"
#include "llvm/ExecutionEngine/Orc/TargetProcess/RegisterEHFrames.h"
#include "llvm/ExecutionEngine/Orc/TargetProcess/SimpleExecutorMemoryManager.h"
#include "llvm/ExecutionEngine/Orc/TargetProcess/SimpleRemoteEPCServer.h"
#include "llvm/Support/DynamicLibrary.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <cstring>
#include <sstream>
using namespace llvm;
using namespace llvm::orc;
ExitOnError ExitOnErr;
int main(int argc, char *argv[]) {
#if LLVM_ENABLE_THREADS
if (argc != 3) {
errs() << "Usage: " << argv[0] << " <input fd> <output fd>\n";
return 1;
}
if (sys::DynamicLibrary::LoadLibraryPermanently(nullptr)) {
errs() << "Error loading program symbols.\n";
return 1;
}
ExitOnErr.setBanner(std::string(argv[0]) + ": ");
int InFD = 0;
int OutFD = 0;
{
std::istringstream InFDStream(argv[1]), OutFDStream(argv[2]);
InFDStream >> InFD;
OutFDStream >> OutFD;
}
auto Server =
ExitOnErr(SimpleRemoteEPCServer::Create<FDSimpleRemoteEPCTransport>(
[](SimpleRemoteEPCServer::Setup &S) -> Error {
S.setDispatcher(
std::make_unique<SimpleRemoteEPCServer::ThreadDispatcher>());
S.bootstrapSymbols() =
SimpleRemoteEPCServer::defaultBootstrapSymbols();
S.services().push_back(
std::make_unique<rt_bootstrap::SimpleExecutorMemoryManager>());
return Error::success();
},
InFD, OutFD));
ExitOnErr(Server->waitForDisconnect());
return 0;
#else
errs() << argv[0]
<< " error: this tool requires threads, but LLVM was "
"built with LLVM_ENABLE_THREADS=Off\n";
return 1;
#endif
}
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