1//===-- COFFDirectiveParser.cpp - JITLink coff directive parser --*- C++ -*===//
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// MSVC COFF directive parser
10//
11//===----------------------------------------------------------------------===//
12
13#include "COFFDirectiveParser.h"
14
15using namespace llvm;
16using namespace jitlink;
17
18#define DEBUG_TYPE "jitlink"
19
20using namespace llvm::opt;
21#define OPTTABLE_CODE
22#include "COFFOptions.inc"
23
24class COFFOptTable : public opt::OptTable {
25public:
26 COFFOptTable() : OptTable(optionTables(), true) {}
27};
28
29static COFFOptTable optTable;
30
31Expected<opt::InputArgList> COFFDirectiveParser::parse(StringRef Str) {
32 SmallVector<StringRef, 16> Tokens;
33 SmallVector<const char *, 16> Buffer;
34 cl::TokenizeWindowsCommandLineNoCopy(Source: Str, Saver&: saver, NewArgv&: Tokens);
35 for (StringRef Tok : Tokens) {
36 bool HasNul = Tok.end() != Str.end() && Tok.data()[Tok.size()] == '\0';
37 Buffer.push_back(Elt: HasNul ? Tok.data() : saver.save(S: Tok).data());
38 }
39
40 unsigned missingIndex;
41 unsigned missingCount;
42
43 auto Result = optTable.ParseArgs(Args: Buffer, MissingArgIndex&: missingIndex, MissingArgCount&: missingCount);
44
45 if (missingCount)
46 return make_error<JITLinkError>(Args: Twine("COFF directive parsing failed: ") +
47 Result.getArgString(Index: missingIndex) +
48 " missing argument");
49 LLVM_DEBUG({
50 for (auto *arg : Result.filtered(COFF_OPT_UNKNOWN))
51 dbgs() << "Unknown coff option argument: " << arg->getAsString(Result)
52 << "\n";
53 });
54 return std::move(Result);
55}
56