1 //===- DlltoolDriver.cpp - dlltool.exe-compatible driver ------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Defines an interface to a dlltool.exe-compatible driver.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/ToolDrivers/llvm-dlltool/DlltoolDriver.h"
15 #include "llvm/Object/ArchiveWriter.h"
16 #include "llvm/Object/COFF.h"
17 #include "llvm/Object/COFFImportFile.h"
18 #include "llvm/Object/COFFModuleDefinition.h"
19 #include "llvm/Option/Arg.h"
20 #include "llvm/Option/ArgList.h"
21 #include "llvm/Option/Option.h"
22 #include "llvm/Support/Path.h"
28 using namespace llvm::object;
29 using namespace llvm::COFF;
35 #define OPTION(_1, _2, ID, _4, _5, _6, _7, _8, _9, _10, _11, _12) OPT_##ID,
36 #include "Options.inc"
40 #define PREFIX(NAME, VALUE) const char *const NAME[] = VALUE;
41 #include "Options.inc"
44 static const llvm::opt::OptTable::Info infoTable[] = {
45 #define OPTION(X1, X2, ID, KIND, GROUP, ALIAS, X7, X8, X9, X10, X11, X12) \
46 {X1, X2, X10, X11, OPT_##ID, llvm::opt::Option::KIND##Class, \
47 X9, X8, OPT_##GROUP, OPT_##ALIAS, X7, X12},
48 #include "Options.inc"
52 class DllOptTable : public llvm::opt::OptTable {
54 DllOptTable() : OptTable(infoTable, false) {}
59 std::vector<std::unique_ptr<MemoryBuffer>> OwningMBs;
61 // Opens a file. Path has to be resolved already.
62 // Newly created memory buffers are owned by this driver.
63 MemoryBufferRef openFile(StringRef Path) {
64 ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> MB = MemoryBuffer::getFile(Path);
66 if (std::error_code EC = MB.getError())
67 llvm::errs() << "fail openFile: " << EC.message() << "\n";
69 MemoryBufferRef MBRef = MB.get()->getMemBufferRef();
70 OwningMBs.push_back(std::move(MB.get())); // take ownership
74 static MachineTypes getEmulation(StringRef S) {
75 return StringSwitch<MachineTypes>(S)
76 .Case("i386", IMAGE_FILE_MACHINE_I386)
77 .Case("i386:x86-64", IMAGE_FILE_MACHINE_AMD64)
78 .Case("arm", IMAGE_FILE_MACHINE_ARMNT)
79 .Default(IMAGE_FILE_MACHINE_UNKNOWN);
82 static std::string getImplibPath(std::string Path) {
83 SmallString<128> Out = StringRef("lib");
85 sys::path::replace_extension(Out, ".a");
89 int llvm::dlltoolDriverMain(llvm::ArrayRef<const char *> ArgsArr) {
91 unsigned MissingIndex;
92 unsigned MissingCount;
93 llvm::opt::InputArgList Args =
94 Table.ParseArgs(ArgsArr.slice(1), MissingIndex, MissingCount);
96 llvm::errs() << Args.getArgString(MissingIndex) << ": missing argument\n";
100 // Handle when no input or output is specified
101 if (Args.hasArgNoClaim(OPT_INPUT) ||
102 (!Args.hasArgNoClaim(OPT_d) && !Args.hasArgNoClaim(OPT_l))) {
103 Table.PrintHelp(outs(), ArgsArr[0], "dlltool", false);
104 llvm::outs() << "\nTARGETS: i386, i386:x86-64, arm\n";
108 if (!Args.hasArgNoClaim(OPT_m) && Args.hasArgNoClaim(OPT_d)) {
109 llvm::errs() << "error: no target machine specified\n"
110 << "supported targets: i386, i386:x86-64, arm\n";
114 for (auto *Arg : Args.filtered(OPT_UNKNOWN))
115 llvm::errs() << "ignoring unknown argument: " << Arg->getSpelling() << "\n";
118 if (auto *Arg = Args.getLastArg(OPT_d))
119 MB = openFile(Arg->getValue());
121 if (!MB.getBufferSize()) {
122 llvm::errs() << "definition file empty\n";
126 COFF::MachineTypes Machine = IMAGE_FILE_MACHINE_UNKNOWN;
127 if (auto *Arg = Args.getLastArg(OPT_m))
128 Machine = getEmulation(Arg->getValue());
130 if (Machine == IMAGE_FILE_MACHINE_UNKNOWN) {
131 llvm::errs() << "unknown target\n";
135 Expected<COFFModuleDefinition> Def =
136 parseCOFFModuleDefinition(MB, Machine, true);
139 llvm::errs() << "error parsing definition\n"
140 << errorToErrorCode(Def.takeError()).message();
144 // Do this after the parser because parseCOFFModuleDefinition sets OutputFile.
145 if (auto *Arg = Args.getLastArg(OPT_D))
146 Def->OutputFile = Arg->getValue();
148 if (Def->OutputFile.empty()) {
149 llvm::errs() << "no output file specified\n";
153 std::string Path = Args.getLastArgValue(OPT_l);
155 Path = getImplibPath(Def->OutputFile);
157 if (writeImportLibrary(Def->OutputFile, Path, Def->Exports, Machine))