contrib/llvm/tools/clang/lib/Driver/ToolChains/MinGW.cpp

   1 //===--- MinGW.cpp - MinGWToolChain Implementation ------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "MinGW.h"
  11 #include "InputInfo.h"
  12 #include "CommonArgs.h"
  13 #include "clang/Driver/Compilation.h"
  14 #include "clang/Driver/Driver.h"
  15 #include "clang/Driver/DriverDiagnostic.h"
  16 #include "clang/Driver/Options.h"
  17 #include "llvm/Option/ArgList.h"
  18 #include "llvm/Support/FileSystem.h"
  19 #include "llvm/Support/Path.h"
  20 #include <system_error>
  21
  22 using namespace clang::diag;
  23 using namespace clang::driver;
  24 using namespace clang;
  25 using namespace llvm::opt;
  26
  27 /// MinGW Tools
  28 void tools::MinGW::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
  29                                            const InputInfo &Output,
  30                                            const InputInfoList &Inputs,
  31                                            const ArgList &Args,
  32                                            const char *LinkingOutput) const {
  33   claimNoWarnArgs(Args);
  34   ArgStringList CmdArgs;
  35
  36   if (getToolChain().getArch() == llvm::Triple::x86) {
  37     CmdArgs.push_back("--32");
  38   } else if (getToolChain().getArch() == llvm::Triple::x86_64) {
  39     CmdArgs.push_back("--64");
  40   }
  41
  42   Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
  43
  44   CmdArgs.push_back("-o");
  45   CmdArgs.push_back(Output.getFilename());
  46
  47   for (const auto &II : Inputs)
  48     CmdArgs.push_back(II.getFilename());
  49
  50   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
  51   C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
  52
  53   if (Args.hasArg(options::OPT_gsplit_dwarf))
  54     SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
  55                    SplitDebugName(Args, Inputs[0]));
  56 }
  57
  58 void tools::MinGW::Linker::AddLibGCC(const ArgList &Args,
  59                                      ArgStringList &CmdArgs) const {
  60   if (Args.hasArg(options::OPT_mthreads))
  61     CmdArgs.push_back("-lmingwthrd");
  62   CmdArgs.push_back("-lmingw32");
  63
  64   // Make use of compiler-rt if --rtlib option is used
  65   ToolChain::RuntimeLibType RLT = getToolChain().GetRuntimeLibType(Args);
  66   if (RLT == ToolChain::RLT_Libgcc) {
  67     bool Static = Args.hasArg(options::OPT_static_libgcc) ||
  68                   Args.hasArg(options::OPT_static);
  69     bool Shared = Args.hasArg(options::OPT_shared);
  70     bool CXX = getToolChain().getDriver().CCCIsCXX();
  71
  72     if (Static || (!CXX && !Shared)) {
  73       CmdArgs.push_back("-lgcc");
  74       CmdArgs.push_back("-lgcc_eh");
  75     } else {
  76       CmdArgs.push_back("-lgcc_s");
  77       CmdArgs.push_back("-lgcc");
  78     }
  79   } else {
  80     AddRunTimeLibs(getToolChain(), getToolChain().getDriver(), CmdArgs, Args);
  81   }
  82
  83   CmdArgs.push_back("-lmoldname");
  84   CmdArgs.push_back("-lmingwex");
  85   for (auto Lib : Args.getAllArgValues(options::OPT_l))
  86     if (StringRef(Lib).startswith("msvcr") || Lib == "ucrtbase")
  87       return;
  88   CmdArgs.push_back("-lmsvcrt");
  89 }
  90
  91 void tools::MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA,
  92                                         const InputInfo &Output,
  93                                         const InputInfoList &Inputs,
  94                                         const ArgList &Args,
  95                                         const char *LinkingOutput) const {
  96   const ToolChain &TC = getToolChain();
  97   const Driver &D = TC.getDriver();
  98   // const SanitizerArgs &Sanitize = TC.getSanitizerArgs();
  99
 100   ArgStringList CmdArgs;
 101
 102   // Silence warning for "clang -g foo.o -o foo"
 103   Args.ClaimAllArgs(options::OPT_g_Group);
 104   // and "clang -emit-llvm foo.o -o foo"
 105   Args.ClaimAllArgs(options::OPT_emit_llvm);
 106   // and for "clang -w foo.o -o foo". Other warning options are already
 107   // handled somewhere else.
 108   Args.ClaimAllArgs(options::OPT_w);
 109
 110   if (!D.SysRoot.empty())
 111     CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
 112
 113   if (Args.hasArg(options::OPT_s))
 114     CmdArgs.push_back("-s");
 115
 116   CmdArgs.push_back("-m");
 117   switch (TC.getArch()) {
 118   case llvm::Triple::x86:
 119     CmdArgs.push_back("i386pe");
 120     break;
 121   case llvm::Triple::x86_64:
 122     CmdArgs.push_back("i386pep");
 123     break;
 124   case llvm::Triple::arm:
 125   case llvm::Triple::thumb:
 126     // FIXME: this is incorrect for WinCE
 127     CmdArgs.push_back("thumb2pe");
 128     break;
 129   case llvm::Triple::aarch64:
 130     CmdArgs.push_back("arm64pe");
 131     break;
 132   default:
 133     llvm_unreachable("Unsupported target architecture.");
 134   }
 135
 136   if (Args.hasArg(options::OPT_mwindows)) {
 137     CmdArgs.push_back("--subsystem");
 138     CmdArgs.push_back("windows");
 139   } else if (Args.hasArg(options::OPT_mconsole)) {
 140     CmdArgs.push_back("--subsystem");
 141     CmdArgs.push_back("console");
 142   }
 143
 144   if (Args.hasArg(options::OPT_mdll))
 145     CmdArgs.push_back("--dll");
 146   else if (Args.hasArg(options::OPT_shared))
 147     CmdArgs.push_back("--shared");
 148   if (Args.hasArg(options::OPT_static))
 149     CmdArgs.push_back("-Bstatic");
 150   else
 151     CmdArgs.push_back("-Bdynamic");
 152   if (Args.hasArg(options::OPT_mdll) || Args.hasArg(options::OPT_shared)) {
 153     CmdArgs.push_back("-e");
 154     if (TC.getArch() == llvm::Triple::x86)
 155       CmdArgs.push_back("_DllMainCRTStartup@12");
 156     else
 157       CmdArgs.push_back("DllMainCRTStartup");
 158     CmdArgs.push_back("--enable-auto-image-base");
 159   }
 160
 161   CmdArgs.push_back("-o");
 162   CmdArgs.push_back(Output.getFilename());
 163
 164   Args.AddAllArgs(CmdArgs, options::OPT_e);
 165   // FIXME: add -N, -n flags
 166   Args.AddLastArg(CmdArgs, options::OPT_r);
 167   Args.AddLastArg(CmdArgs, options::OPT_s);
 168   Args.AddLastArg(CmdArgs, options::OPT_t);
 169   Args.AddAllArgs(CmdArgs, options::OPT_u_Group);
 170   Args.AddLastArg(CmdArgs, options::OPT_Z_Flag);
 171
 172   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
 173     if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_mdll)) {
 174       CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("dllcrt2.o")));
 175     } else {
 176       if (Args.hasArg(options::OPT_municode))
 177         CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2u.o")));
 178       else
 179         CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2.o")));
 180     }
 181     if (Args.hasArg(options::OPT_pg))
 182       CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("gcrt2.o")));
 183     CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o")));
 184   }
 185
 186   Args.AddAllArgs(CmdArgs, options::OPT_L);
 187   TC.AddFilePathLibArgs(Args, CmdArgs);
 188   AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA);
 189
 190   // TODO: Add ASan stuff here
 191
 192   // TODO: Add profile stuff here
 193
 194   if (TC.ShouldLinkCXXStdlib(Args)) {
 195     bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
 196                                !Args.hasArg(options::OPT_static);
 197     if (OnlyLibstdcxxStatic)
 198       CmdArgs.push_back("-Bstatic");
 199     TC.AddCXXStdlibLibArgs(Args, CmdArgs);
 200     if (OnlyLibstdcxxStatic)
 201       CmdArgs.push_back("-Bdynamic");
 202   }
 203
 204   if (!Args.hasArg(options::OPT_nostdlib)) {
 205     if (!Args.hasArg(options::OPT_nodefaultlibs)) {
 206       if (Args.hasArg(options::OPT_static))
 207         CmdArgs.push_back("--start-group");
 208
 209       if (Args.hasArg(options::OPT_fstack_protector) ||
 210           Args.hasArg(options::OPT_fstack_protector_strong) ||
 211           Args.hasArg(options::OPT_fstack_protector_all)) {
 212         CmdArgs.push_back("-lssp_nonshared");
 213         CmdArgs.push_back("-lssp");
 214       }
 215       if (Args.hasArg(options::OPT_fopenmp))
 216         CmdArgs.push_back("-lgomp");
 217
 218       AddLibGCC(Args, CmdArgs);
 219
 220       if (Args.hasArg(options::OPT_pg))
 221         CmdArgs.push_back("-lgmon");
 222
 223       if (Args.hasArg(options::OPT_pthread))
 224         CmdArgs.push_back("-lpthread");
 225
 226       // add system libraries
 227       if (Args.hasArg(options::OPT_mwindows)) {
 228         CmdArgs.push_back("-lgdi32");
 229         CmdArgs.push_back("-lcomdlg32");
 230       }
 231       CmdArgs.push_back("-ladvapi32");
 232       CmdArgs.push_back("-lshell32");
 233       CmdArgs.push_back("-luser32");
 234       CmdArgs.push_back("-lkernel32");
 235
 236       if (Args.hasArg(options::OPT_static))
 237         CmdArgs.push_back("--end-group");
 238       else
 239         AddLibGCC(Args, CmdArgs);
 240     }
 241
 242     if (!Args.hasArg(options::OPT_nostartfiles)) {
 243       // Add crtfastmath.o if available and fast math is enabled.
 244       TC.AddFastMathRuntimeIfAvailable(Args, CmdArgs);
 245
 246       CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o")));
 247     }
 248   }
 249   const char *Exec = Args.MakeArgString(TC.GetLinkerPath());
 250   C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
 251 }
 252
 253 // Simplified from Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple.
 254 static bool findGccVersion(StringRef LibDir, std::string &GccLibDir,
 255                            std::string &Ver) {
 256   auto Version = toolchains::Generic_GCC::GCCVersion::Parse("0.0.0");
 257   std::error_code EC;
 258   for (llvm::sys::fs::directory_iterator LI(LibDir, EC), LE; !EC && LI != LE;
 259        LI = LI.increment(EC)) {
 260     StringRef VersionText = llvm::sys::path::filename(LI->path());
 261     auto CandidateVersion =
 262         toolchains::Generic_GCC::GCCVersion::Parse(VersionText);
 263     if (CandidateVersion.Major == -1)
 264       continue;
 265     if (CandidateVersion <= Version)
 266       continue;
 267     Ver = VersionText;
 268     GccLibDir = LI->path();
 269   }
 270   return Ver.size();
 271 }
 272
 273 void toolchains::MinGW::findGccLibDir() {
 274   llvm::SmallVector<llvm::SmallString<32>, 2> Archs;
 275   Archs.emplace_back(getTriple().getArchName());
 276   Archs[0] += "-w64-mingw32";
 277   Archs.emplace_back("mingw32");
 278   Arch = Archs[0].str();
 279   // lib: Arch Linux, Ubuntu, Windows
 280   // lib64: openSUSE Linux
 281   for (StringRef CandidateLib : {"lib", "lib64"}) {
 282     for (StringRef CandidateArch : Archs) {
 283       llvm::SmallString<1024> LibDir(Base);
 284       llvm::sys::path::append(LibDir, CandidateLib, "gcc", CandidateArch);
 285       if (findGccVersion(LibDir, GccLibDir, Ver)) {
 286         Arch = CandidateArch;
 287         return;
 288       }
 289     }
 290   }
 291 }
 292
 293 llvm::ErrorOr<std::string> toolchains::MinGW::findGcc() {
 294   llvm::SmallVector<llvm::SmallString<32>, 2> Gccs;
 295   Gccs.emplace_back(getTriple().getArchName());
 296   Gccs[0] += "-w64-mingw32-gcc";
 297   Gccs.emplace_back("mingw32-gcc");
 298   // Please do not add "gcc" here
 299   for (StringRef CandidateGcc : Gccs)
 300     if (llvm::ErrorOr<std::string> GPPName = llvm::sys::findProgramByName(CandidateGcc))
 301       return GPPName;
 302   return make_error_code(std::errc::no_such_file_or_directory);
 303 }
 304
 305 toolchains::MinGW::MinGW(const Driver &D, const llvm::Triple &Triple,
 306                          const ArgList &Args)
 307     : ToolChain(D, Triple, Args), CudaInstallation(D, Triple, Args) {
 308   getProgramPaths().push_back(getDriver().getInstalledDir());
 309
 310   if (getDriver().SysRoot.size())
 311     Base = getDriver().SysRoot;
 312   else if (llvm::ErrorOr<std::string> GPPName = findGcc())
 313     Base = llvm::sys::path::parent_path(
 314         llvm::sys::path::parent_path(GPPName.get()));
 315   else
 316     Base = llvm::sys::path::parent_path(getDriver().getInstalledDir());
 317
 318   Base += llvm::sys::path::get_separator();
 319   findGccLibDir();
 320   // GccLibDir must precede Base/lib so that the
 321   // correct crtbegin.o ,cetend.o would be found.
 322   getFilePaths().push_back(GccLibDir);
 323   getFilePaths().push_back(
 324       (Base + Arch + llvm::sys::path::get_separator() + "lib").str());
 325   getFilePaths().push_back(Base + "lib");
 326   // openSUSE
 327   getFilePaths().push_back(Base + Arch + "/sys-root/mingw/lib");
 328 }
 329
 330 bool toolchains::MinGW::IsIntegratedAssemblerDefault() const { return true; }
 331
 332 Tool *toolchains::MinGW::getTool(Action::ActionClass AC) const {
 333   switch (AC) {
 334   case Action::PreprocessJobClass:
 335     if (!Preprocessor)
 336       Preprocessor.reset(new tools::gcc::Preprocessor(*this));
 337     return Preprocessor.get();
 338   case Action::CompileJobClass:
 339     if (!Compiler)
 340       Compiler.reset(new tools::gcc::Compiler(*this));
 341     return Compiler.get();
 342   default:
 343     return ToolChain::getTool(AC);
 344   }
 345 }
 346
 347 Tool *toolchains::MinGW::buildAssembler() const {
 348   return new tools::MinGW::Assembler(*this);
 349 }
 350
 351 Tool *toolchains::MinGW::buildLinker() const {
 352   return new tools::MinGW::Linker(*this);
 353 }
 354
 355 bool toolchains::MinGW::IsUnwindTablesDefault(const ArgList &Args) const {
 356   return getArch() == llvm::Triple::x86_64;
 357 }
 358
 359 bool toolchains::MinGW::isPICDefault() const {
 360   return getArch() == llvm::Triple::x86_64;
 361 }
 362
 363 bool toolchains::MinGW::isPIEDefault() const { return false; }
 364
 365 bool toolchains::MinGW::isPICDefaultForced() const {
 366   return getArch() == llvm::Triple::x86_64;
 367 }
 368
 369 llvm::ExceptionHandling
 370 toolchains::MinGW::GetExceptionModel(const ArgList &Args) const {
 371   if (getArch() == llvm::Triple::x86_64)
 372     return llvm::ExceptionHandling::WinEH;
 373   return llvm::ExceptionHandling::DwarfCFI;
 374 }
 375
 376 void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs,
 377                                            ArgStringList &CC1Args) const {
 378   CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args);
 379 }
 380
 381 void toolchains::MinGW::printVerboseInfo(raw_ostream &OS) const {
 382   CudaInstallation.print(OS);
 383 }
 384
 385 // Include directories for various hosts:
 386
 387 // Windows, mingw.org
 388 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++
 389 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\mingw32
 390 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\backward
 391 // c:\mingw\include
 392 // c:\mingw\mingw32\include
 393
 394 // Windows, mingw-w64 mingw-builds
 395 // c:\mingw32\i686-w64-mingw32\include
 396 // c:\mingw32\i686-w64-mingw32\include\c++
 397 // c:\mingw32\i686-w64-mingw32\include\c++\i686-w64-mingw32
 398 // c:\mingw32\i686-w64-mingw32\include\c++\backward
 399
 400 // Windows, mingw-w64 msys2
 401 // c:\msys64\mingw32\include
 402 // c:\msys64\mingw32\i686-w64-mingw32\include
 403 // c:\msys64\mingw32\include\c++\4.9.2
 404 // c:\msys64\mingw32\include\c++\4.9.2\i686-w64-mingw32
 405 // c:\msys64\mingw32\include\c++\4.9.2\backward
 406
 407 // openSUSE
 408 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++
 409 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/x86_64-w64-mingw32
 410 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/backward
 411 // /usr/x86_64-w64-mingw32/sys-root/mingw/include
 412
 413 // Arch Linux
 414 // /usr/i686-w64-mingw32/include/c++/5.1.0
 415 // /usr/i686-w64-mingw32/include/c++/5.1.0/i686-w64-mingw32
 416 // /usr/i686-w64-mingw32/include/c++/5.1.0/backward
 417 // /usr/i686-w64-mingw32/include
 418
 419 // Ubuntu
 420 // /usr/include/c++/4.8
 421 // /usr/include/c++/4.8/x86_64-w64-mingw32
 422 // /usr/include/c++/4.8/backward
 423 // /usr/x86_64-w64-mingw32/include
 424
 425 void toolchains::MinGW::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
 426                                                   ArgStringList &CC1Args) const {
 427   if (DriverArgs.hasArg(options::OPT_nostdinc))
 428     return;
 429
 430   if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
 431     SmallString<1024> P(getDriver().ResourceDir);
 432     llvm::sys::path::append(P, "include");
 433     addSystemInclude(DriverArgs, CC1Args, P.str());
 434   }
 435
 436   if (DriverArgs.hasArg(options::OPT_nostdlibinc))
 437     return;
 438
 439   if (GetRuntimeLibType(DriverArgs) == ToolChain::RLT_Libgcc) {
 440     // openSUSE
 441     addSystemInclude(DriverArgs, CC1Args,
 442                      Base + Arch + "/sys-root/mingw/include");
 443   }
 444
 445   addSystemInclude(DriverArgs, CC1Args,
 446                    Base + Arch + llvm::sys::path::get_separator() + "include");
 447   addSystemInclude(DriverArgs, CC1Args, Base + "include");
 448 }
 449
 450 void toolchains::MinGW::AddClangCXXStdlibIncludeArgs(
 451     const ArgList &DriverArgs, ArgStringList &CC1Args) const {
 452   if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
 453       DriverArgs.hasArg(options::OPT_nostdincxx))
 454     return;
 455
 456   switch (GetCXXStdlibType(DriverArgs)) {
 457   case ToolChain::CST_Libcxx:
 458     addSystemInclude(DriverArgs, CC1Args,
 459                      Base + "include" + llvm::sys::path::get_separator() +
 460                          "c++" + llvm::sys::path::get_separator() + "v1");
 461     break;
 462
 463   case ToolChain::CST_Libstdcxx:
 464     llvm::SmallVector<llvm::SmallString<1024>, 4> CppIncludeBases;
 465     CppIncludeBases.emplace_back(Base);
 466     llvm::sys::path::append(CppIncludeBases[0], Arch, "include", "c++");
 467     CppIncludeBases.emplace_back(Base);
 468     llvm::sys::path::append(CppIncludeBases[1], Arch, "include", "c++", Ver);
 469     CppIncludeBases.emplace_back(Base);
 470     llvm::sys::path::append(CppIncludeBases[2], "include", "c++", Ver);
 471     CppIncludeBases.emplace_back(GccLibDir);
 472     llvm::sys::path::append(CppIncludeBases[3], "include", "c++");
 473     for (auto &CppIncludeBase : CppIncludeBases) {
 474       addSystemInclude(DriverArgs, CC1Args, CppIncludeBase);
 475       CppIncludeBase += llvm::sys::path::get_separator();
 476       addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + Arch);
 477       addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + "backward");
 478     }
 479     break;
 480   }
 481 }