1//===--- TargetExecutionUtils.cpp - Execution utils for target processes --===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "llvm/ExecutionEngine/Orc/TargetProcess/TargetExecutionUtils.h"
10
11#include <vector>
12
13namespace llvm {
14namespace orc {
15
16int runAsMain(int (*Main)(int, char *[]), ArrayRef<std::string> Args,
17              std::optional<StringRef> ProgramName) {
18  std::vector<std::unique_ptr<char[]>> ArgVStorage;
19  std::vector<char *> ArgV;
20
21  ArgVStorage.reserve(Args.size() + (ProgramName ? 1 : 0));
22  ArgV.reserve(Args.size() + 1 + (ProgramName ? 1 : 0));
23
24  if (ProgramName) {
25    ArgVStorage.push_back(std::make_unique<char[]>(ProgramName->size() + 1));
26    llvm::copy(*ProgramName, &ArgVStorage.back()[0]);
27    ArgVStorage.back()[ProgramName->size()] = '\0';
28    ArgV.push_back(ArgVStorage.back().get());
29  }
30
31  for (const auto &Arg : Args) {
32    ArgVStorage.push_back(std::make_unique<char[]>(Arg.size() + 1));
33    llvm::copy(Arg, &ArgVStorage.back()[0]);
34    ArgVStorage.back()[Arg.size()] = '\0';
35    ArgV.push_back(ArgVStorage.back().get());
36  }
37  ArgV.push_back(nullptr);
38
39  return Main(Args.size() + !!ProgramName, ArgV.data());
40}
41
42int runAsVoidFunction(int (*Func)(void)) { return Func(); }
43
44int runAsIntFunction(int (*Func)(int), int Arg) { return Func(Arg); }
45
46} // End namespace orc.
47} // End namespace llvm.
48