llvm-mt.cpp
4.86 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
//===- llvm-mt.cpp - Merge .manifest files ---------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
//
// Merge .manifest files. This is intended to be a platform-independent port
// of Microsoft's mt.exe.
//
//===---------------------------------------------------------------------===//
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FileOutputBuffer.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/WithColor.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/WindowsManifest/WindowsManifestMerger.h"
#include <system_error>
using namespace llvm;
namespace {
enum ID {
OPT_INVALID = 0, // This is not an option ID.
#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES) \
OPT_##ID,
#include "Opts.inc"
#undef OPTION
};
#define PREFIX(NAME, VALUE) const char *const NAME[] = VALUE;
#include "Opts.inc"
#undef PREFIX
static const opt::OptTable::Info InfoTable[] = {
#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES) \
{ \
PREFIX, NAME, HELPTEXT, \
METAVAR, OPT_##ID, opt::Option::KIND##Class, \
PARAM, FLAGS, OPT_##GROUP, \
OPT_##ALIAS, ALIASARGS, VALUES},
#include "Opts.inc"
#undef OPTION
};
class CvtResOptTable : public opt::OptTable {
public:
CvtResOptTable() : OptTable(InfoTable, true) {}
};
} // namespace
LLVM_ATTRIBUTE_NORETURN static void reportError(Twine Msg) {
WithColor::error(errs(), "llvm-mt") << Msg << '\n';
exit(1);
}
static void reportError(StringRef Input, std::error_code EC) {
reportError(Twine(Input) + ": " + EC.message());
}
static void error(Error EC) {
if (EC)
handleAllErrors(std::move(EC), [&](const ErrorInfoBase &EI) {
reportError(EI.message());
});
}
int main(int Argc, const char **Argv) {
InitLLVM X(Argc, Argv);
CvtResOptTable T;
unsigned MAI, MAC;
ArrayRef<const char *> ArgsArr = makeArrayRef(Argv + 1, Argc - 1);
opt::InputArgList InputArgs = T.ParseArgs(ArgsArr, MAI, MAC);
for (auto *Arg : InputArgs.filtered(OPT_INPUT)) {
auto ArgString = Arg->getAsString(InputArgs);
std::string Diag;
raw_string_ostream OS(Diag);
OS << "invalid option '" << ArgString << "'";
std::string Nearest;
if (T.findNearest(ArgString, Nearest) < 2)
OS << ", did you mean '" << Nearest << "'?";
reportError(OS.str());
}
for (auto &Arg : InputArgs) {
if (Arg->getOption().matches(OPT_unsupported)) {
outs() << "llvm-mt: ignoring unsupported '" << Arg->getOption().getName()
<< "' option\n";
}
}
if (InputArgs.hasArg(OPT_help)) {
T.PrintHelp(outs(), "llvm-mt [options] file...", "Manifest Tool", false);
return 0;
}
std::vector<std::string> InputFiles = InputArgs.getAllArgValues(OPT_manifest);
if (InputFiles.size() == 0) {
reportError("no input file specified");
}
StringRef OutputFile;
if (InputArgs.hasArg(OPT_out)) {
OutputFile = InputArgs.getLastArgValue(OPT_out);
} else if (InputFiles.size() == 1) {
OutputFile = InputFiles[0];
} else {
reportError("no output file specified");
}
windows_manifest::WindowsManifestMerger Merger;
for (const auto &File : InputFiles) {
ErrorOr<std::unique_ptr<MemoryBuffer>> ManifestOrErr =
MemoryBuffer::getFile(File);
if (!ManifestOrErr)
reportError(File, ManifestOrErr.getError());
MemoryBuffer &Manifest = *ManifestOrErr.get();
error(Merger.merge(Manifest));
}
std::unique_ptr<MemoryBuffer> OutputBuffer = Merger.getMergedManifest();
if (!OutputBuffer)
reportError("empty manifest not written");
Expected<std::unique_ptr<FileOutputBuffer>> FileOrErr =
FileOutputBuffer::create(OutputFile, OutputBuffer->getBufferSize());
if (!FileOrErr)
reportError(OutputFile, errorToErrorCode(FileOrErr.takeError()));
std::unique_ptr<FileOutputBuffer> FileBuffer = std::move(*FileOrErr);
std::copy(OutputBuffer->getBufferStart(), OutputBuffer->getBufferEnd(),
FileBuffer->getBufferStart());
error(FileBuffer->commit());
return 0;
}