1d0676b54c
implementation.
This patch aims to improve support for out-of-process JITing using OrcV2. It
introduces two new class templates, OrcRPCTargetProcessControlBase and
OrcRPCTPCServer, which together implement the TargetProcessControl API by
forwarding operations to an execution process via an Orc-RPC Endpoint. These
utilities are used to implement out-of-process JITing from llvm-jitlink to
a new llvm-jitlink-executor tool.
This patch also breaks the OrcJIT library into three parts:
-- OrcTargetProcess: Contains code needed by the JIT execution process.
-- OrcShared: Contains code needed by the JIT execution and compiler
processes
-- OrcJIT: Everything else.
This break-up allows JIT executor processes to link against OrcTargetProcess
and OrcShared only, without having to link in all of OrcJIT. Clients executing
JIT'd code in-process should start linking against OrcTargetProcess as well as
OrcJIT.
In the near future these changes will enable:
-- Removal of the OrcRemoteTargetClient/OrcRemoteTargetServer class templates
which provided similar functionality in OrcV1.
-- Restoration of Chapter 5 of the Building-A-JIT tutorial series, which will
serve as a simple usage example for these APIs.
-- Implementation of lazy, cross-target compilation in lli's -jit-kind=orc-lazy
mode.
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
//===--- TargetExecutionUtils.cpp - Execution utils for target processes --===//
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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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#include "llvm/ExecutionEngine/Orc/TargetProcess/TargetExecutionUtils.h"
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#include <vector>
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namespace llvm {
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namespace orc {
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int runAsMain(int (*Main)(int, char *[]), ArrayRef<std::string> Args,
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Optional<StringRef> ProgramName) {
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std::vector<std::unique_ptr<char[]>> ArgVStorage;
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std::vector<char *> ArgV;
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ArgVStorage.reserve(Args.size() + (ProgramName ? 1 : 0));
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ArgV.reserve(Args.size() + 1 + (ProgramName ? 1 : 0));
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if (ProgramName) {
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ArgVStorage.push_back(std::make_unique<char[]>(ProgramName->size() + 1));
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llvm::copy(*ProgramName, &ArgVStorage.back()[0]);
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ArgVStorage.back()[ProgramName->size()] = '\0';
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ArgV.push_back(ArgVStorage.back().get());
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}
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for (const auto &Arg : Args) {
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ArgVStorage.push_back(std::make_unique<char[]>(Arg.size() + 1));
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llvm::copy(Arg, &ArgVStorage.back()[0]);
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ArgVStorage.back()[Arg.size()] = '\0';
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ArgV.push_back(ArgVStorage.back().get());
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}
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ArgV.push_back(nullptr);
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return Main(Args.size() + !!ProgramName, ArgV.data());
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}
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} // End namespace orc.
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} // End namespace llvm.
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