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 
13 namespace llvm {
14 namespace orc {
15 
16 int runAsMain(int (*Main)(int, char *[]), ArrayRef<std::string> Args,
17               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 
42 } // End namespace orc.
43 } // End namespace llvm.
44