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(n: Args.size() + (ProgramName ? 1 : 0));
22 ArgV.reserve(n: Args.size() + 1 + (ProgramName ? 1 : 0));
23
24 if (ProgramName) {
25 ArgVStorage.push_back(x: std::make_unique<char[]>(num: ProgramName->size() + 1));
26 llvm::copy(Range&: *ProgramName, Out: &ArgVStorage.back()[0]);
27 ArgVStorage.back()[ProgramName->size()] = '\0';
28 ArgV.push_back(x: ArgVStorage.back().get());
29 }
30
31 for (const auto &Arg : Args) {
32 ArgVStorage.push_back(x: std::make_unique<char[]>(num: Arg.size() + 1));
33 llvm::copy(Range: Arg, Out: &ArgVStorage.back()[0]);
34 ArgVStorage.back()[Arg.size()] = '\0';
35 ArgV.push_back(x: ArgVStorage.back().get());
36 }
37 ArgV.push_back(x: 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

source code of llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetExecutionUtils.cpp