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
runAsMain(int (* Main)(int,char * []),ArrayRef<std::string> Args,std::optional<StringRef> ProgramName)16 int 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
runAsVoidFunction(int (* Func)(void))42 int runAsVoidFunction(int (*Func)(void)) { return Func(); }
43
runAsIntFunction(int (* Func)(int),int Arg)44 int runAsIntFunction(int (*Func)(int), int Arg) { return Func(Arg); }
45
46 } // End namespace orc.
47 } // End namespace llvm.
48