ToolChains.cpp revision b37fe61e661453800f826897706b1d75f98dd7c1
1//===--- ToolChains.cpp - ToolChain Implementations -----------------------===// 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 "ToolChains.h" 11 12#ifdef HAVE_CLANG_CONFIG_H 13# include "clang/Config/config.h" 14#endif 15 16#include "clang/Driver/Arg.h" 17#include "clang/Driver/ArgList.h" 18#include "clang/Driver/Compilation.h" 19#include "clang/Driver/Driver.h" 20#include "clang/Driver/DriverDiagnostic.h" 21#include "clang/Driver/HostInfo.h" 22#include "clang/Driver/ObjCRuntime.h" 23#include "clang/Driver/OptTable.h" 24#include "clang/Driver/Option.h" 25#include "clang/Driver/Options.h" 26#include "clang/Basic/Version.h" 27 28#include "llvm/ADT/SmallString.h" 29#include "llvm/ADT/StringExtras.h" 30#include "llvm/ADT/StringSwitch.h" 31#include "llvm/ADT/STLExtras.h" 32#include "llvm/Support/ErrorHandling.h" 33#include "llvm/Support/FileSystem.h" 34#include "llvm/Support/MemoryBuffer.h" 35#include "llvm/Support/raw_ostream.h" 36#include "llvm/Support/Path.h" 37#include "llvm/Support/system_error.h" 38 39#include <cstdlib> // ::getenv 40 41#include "llvm/Config/config.h" // for CXX_INCLUDE_ROOT 42 43// Include the necessary headers to interface with the Windows registry and 44// environment. 45#ifdef _MSC_VER 46 #define WIN32_LEAN_AND_MEAN 47 #define NOGDI 48 #define NOMINMAX 49 #include <Windows.h> 50#endif 51 52using namespace clang::driver; 53using namespace clang::driver::toolchains; 54using namespace clang; 55 56/// \brief Utility function to add a system include directory to CC1 arguments. 57static void addSystemInclude(const ArgList &DriverArgs, ArgStringList &CC1Args, 58 const Twine &Path) { 59 CC1Args.push_back("-internal-isystem"); 60 CC1Args.push_back(DriverArgs.MakeArgString(Path)); 61} 62 63/// \brief Utility function to add a system include directory with extern "C" 64/// semantics to CC1 arguments. 65/// 66/// Note that this should be used rarely, and only for directories that 67/// historically and for legacy reasons are treated as having implicit extern 68/// "C" semantics. These semantics are *ignored* by and large today, but its 69/// important to preserve the preprocessor changes resulting from the 70/// classification. 71static void addExternCSystemInclude(const ArgList &DriverArgs, 72 ArgStringList &CC1Args, const Twine &Path) { 73 CC1Args.push_back("-internal-externc-isystem"); 74 CC1Args.push_back(DriverArgs.MakeArgString(Path)); 75} 76 77/// \brief Utility function to add a list of system include directories to CC1. 78static void addSystemIncludes(const ArgList &DriverArgs, 79 ArgStringList &CC1Args, 80 ArrayRef<StringRef> Paths) { 81 for (ArrayRef<StringRef>::iterator I = Paths.begin(), E = Paths.end(); 82 I != E; ++I) { 83 CC1Args.push_back("-internal-isystem"); 84 CC1Args.push_back(DriverArgs.MakeArgString(*I)); 85 } 86} 87 88/// Darwin - Darwin tool chain for i386 and x86_64. 89 90Darwin::Darwin(const HostInfo &Host, const llvm::Triple& Triple) 91 : ToolChain(Host, Triple), TargetInitialized(false), 92 ARCRuntimeForSimulator(ARCSimulator_None), 93 LibCXXForSimulator(LibCXXSimulator_None) 94{ 95 // Compute the initial Darwin version based on the host. 96 bool HadExtra; 97 std::string OSName = Triple.getOSName(); 98 if (!Driver::GetReleaseVersion(&OSName.c_str()[6], 99 DarwinVersion[0], DarwinVersion[1], 100 DarwinVersion[2], HadExtra)) 101 getDriver().Diag(diag::err_drv_invalid_darwin_version) << OSName; 102 103 llvm::raw_string_ostream(MacosxVersionMin) 104 << "10." << std::max(0, (int)DarwinVersion[0] - 4) << '.' 105 << DarwinVersion[1]; 106} 107 108types::ID Darwin::LookupTypeForExtension(const char *Ext) const { 109 types::ID Ty = types::lookupTypeForExtension(Ext); 110 111 // Darwin always preprocesses assembly files (unless -x is used explicitly). 112 if (Ty == types::TY_PP_Asm) 113 return types::TY_Asm; 114 115 return Ty; 116} 117 118bool Darwin::HasNativeLLVMSupport() const { 119 return true; 120} 121 122bool Darwin::hasARCRuntime() const { 123 // FIXME: Remove this once there is a proper way to detect an ARC runtime 124 // for the simulator. 125 switch (ARCRuntimeForSimulator) { 126 case ARCSimulator_None: 127 break; 128 case ARCSimulator_HasARCRuntime: 129 return true; 130 case ARCSimulator_NoARCRuntime: 131 return false; 132 } 133 134 if (isTargetIPhoneOS()) 135 return !isIPhoneOSVersionLT(5); 136 else 137 return !isMacosxVersionLT(10, 7); 138} 139 140/// Darwin provides an ARC runtime starting in MacOS X 10.7 and iOS 5.0. 141void Darwin::configureObjCRuntime(ObjCRuntime &runtime) const { 142 if (runtime.getKind() != ObjCRuntime::NeXT) 143 return ToolChain::configureObjCRuntime(runtime); 144 145 runtime.HasARC = runtime.HasWeak = hasARCRuntime(); 146 147 // So far, objc_terminate is only available in iOS 5. 148 // FIXME: do the simulator logic properly. 149 if (!ARCRuntimeForSimulator && isTargetIPhoneOS()) 150 runtime.HasTerminate = !isIPhoneOSVersionLT(5); 151 else 152 runtime.HasTerminate = false; 153} 154 155/// Darwin provides a blocks runtime starting in MacOS X 10.6 and iOS 3.2. 156bool Darwin::hasBlocksRuntime() const { 157 if (isTargetIPhoneOS()) 158 return !isIPhoneOSVersionLT(3, 2); 159 else 160 return !isMacosxVersionLT(10, 6); 161} 162 163static const char *GetArmArchForMArch(StringRef Value) { 164 return llvm::StringSwitch<const char*>(Value) 165 .Case("armv6k", "armv6") 166 .Case("armv5tej", "armv5") 167 .Case("xscale", "xscale") 168 .Case("armv4t", "armv4t") 169 .Case("armv7", "armv7") 170 .Cases("armv7a", "armv7-a", "armv7") 171 .Cases("armv7r", "armv7-r", "armv7") 172 .Cases("armv7m", "armv7-m", "armv7") 173 .Default(0); 174} 175 176static const char *GetArmArchForMCpu(StringRef Value) { 177 return llvm::StringSwitch<const char *>(Value) 178 .Cases("arm9e", "arm946e-s", "arm966e-s", "arm968e-s", "arm926ej-s","armv5") 179 .Cases("arm10e", "arm10tdmi", "armv5") 180 .Cases("arm1020t", "arm1020e", "arm1022e", "arm1026ej-s", "armv5") 181 .Case("xscale", "xscale") 182 .Cases("arm1136j-s", "arm1136jf-s", "arm1176jz-s", 183 "arm1176jzf-s", "cortex-m0", "armv6") 184 .Cases("cortex-a8", "cortex-r4", "cortex-m3", "cortex-a9", "armv7") 185 .Default(0); 186} 187 188StringRef Darwin::getDarwinArchName(const ArgList &Args) const { 189 switch (getTriple().getArch()) { 190 default: 191 return getArchName(); 192 193 case llvm::Triple::thumb: 194 case llvm::Triple::arm: { 195 if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) 196 if (const char *Arch = GetArmArchForMArch(A->getValue(Args))) 197 return Arch; 198 199 if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) 200 if (const char *Arch = GetArmArchForMCpu(A->getValue(Args))) 201 return Arch; 202 203 return "arm"; 204 } 205 } 206} 207 208Darwin::~Darwin() { 209 // Free tool implementations. 210 for (llvm::DenseMap<unsigned, Tool*>::iterator 211 it = Tools.begin(), ie = Tools.end(); it != ie; ++it) 212 delete it->second; 213} 214 215std::string Darwin::ComputeEffectiveClangTriple(const ArgList &Args, 216 types::ID InputType) const { 217 llvm::Triple Triple(ComputeLLVMTriple(Args, InputType)); 218 219 // If the target isn't initialized (e.g., an unknown Darwin platform, return 220 // the default triple). 221 if (!isTargetInitialized()) 222 return Triple.getTriple(); 223 224 unsigned Version[3]; 225 getTargetVersion(Version); 226 227 llvm::SmallString<16> Str; 228 llvm::raw_svector_ostream(Str) 229 << (isTargetIPhoneOS() ? "ios" : "macosx") 230 << Version[0] << "." << Version[1] << "." << Version[2]; 231 Triple.setOSName(Str.str()); 232 233 return Triple.getTriple(); 234} 235 236Tool &Darwin::SelectTool(const Compilation &C, const JobAction &JA, 237 const ActionList &Inputs) const { 238 Action::ActionClass Key; 239 240 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) { 241 // Fallback to llvm-gcc for i386 kext compiles, we don't support that ABI. 242 if (Inputs.size() == 1 && 243 types::isCXX(Inputs[0]->getType()) && 244 getTriple().isOSDarwin() && 245 getTriple().getArch() == llvm::Triple::x86 && 246 (C.getArgs().getLastArg(options::OPT_fapple_kext) || 247 C.getArgs().getLastArg(options::OPT_mkernel))) 248 Key = JA.getKind(); 249 else 250 Key = Action::AnalyzeJobClass; 251 } else 252 Key = JA.getKind(); 253 254 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 255 options::OPT_no_integrated_as, 256 IsIntegratedAssemblerDefault()); 257 258 Tool *&T = Tools[Key]; 259 if (!T) { 260 switch (Key) { 261 case Action::InputClass: 262 case Action::BindArchClass: 263 llvm_unreachable("Invalid tool kind."); 264 case Action::PreprocessJobClass: 265 T = new tools::darwin::Preprocess(*this); break; 266 case Action::AnalyzeJobClass: 267 T = new tools::Clang(*this); break; 268 case Action::PrecompileJobClass: 269 case Action::CompileJobClass: 270 T = new tools::darwin::Compile(*this); break; 271 case Action::AssembleJobClass: { 272 if (UseIntegratedAs) 273 T = new tools::ClangAs(*this); 274 else 275 T = new tools::darwin::Assemble(*this); 276 break; 277 } 278 case Action::LinkJobClass: 279 T = new tools::darwin::Link(*this); break; 280 case Action::LipoJobClass: 281 T = new tools::darwin::Lipo(*this); break; 282 case Action::DsymutilJobClass: 283 T = new tools::darwin::Dsymutil(*this); break; 284 case Action::VerifyJobClass: 285 T = new tools::darwin::VerifyDebug(*this); break; 286 } 287 } 288 289 return *T; 290} 291 292 293DarwinClang::DarwinClang(const HostInfo &Host, const llvm::Triple& Triple) 294 : Darwin(Host, Triple) 295{ 296 getProgramPaths().push_back(getDriver().getInstalledDir()); 297 if (getDriver().getInstalledDir() != getDriver().Dir) 298 getProgramPaths().push_back(getDriver().Dir); 299 300 // We expect 'as', 'ld', etc. to be adjacent to our install dir. 301 getProgramPaths().push_back(getDriver().getInstalledDir()); 302 if (getDriver().getInstalledDir() != getDriver().Dir) 303 getProgramPaths().push_back(getDriver().Dir); 304 305 // For fallback, we need to know how to find the GCC cc1 executables, so we 306 // also add the GCC libexec paths. This is legacy code that can be removed 307 // once fallback is no longer useful. 308 AddGCCLibexecPath(DarwinVersion[0]); 309 AddGCCLibexecPath(DarwinVersion[0] - 2); 310 AddGCCLibexecPath(DarwinVersion[0] - 1); 311 AddGCCLibexecPath(DarwinVersion[0] + 1); 312 AddGCCLibexecPath(DarwinVersion[0] + 2); 313} 314 315void DarwinClang::AddGCCLibexecPath(unsigned darwinVersion) { 316 std::string ToolChainDir = "i686-apple-darwin"; 317 ToolChainDir += llvm::utostr(darwinVersion); 318 ToolChainDir += "/4.2.1"; 319 320 std::string Path = getDriver().Dir; 321 Path += "/../llvm-gcc-4.2/libexec/gcc/"; 322 Path += ToolChainDir; 323 getProgramPaths().push_back(Path); 324 325 Path = "/usr/llvm-gcc-4.2/libexec/gcc/"; 326 Path += ToolChainDir; 327 getProgramPaths().push_back(Path); 328} 329 330void DarwinClang::AddLinkSearchPathArgs(const ArgList &Args, 331 ArgStringList &CmdArgs) const { 332 // The Clang toolchain uses explicit paths for internal libraries. 333 334 // Unfortunately, we still might depend on a few of the libraries that are 335 // only available in the gcc library directory (in particular 336 // libstdc++.dylib). For now, hardcode the path to the known install location. 337 llvm::sys::Path P(getDriver().Dir); 338 P.eraseComponent(); // .../usr/bin -> ../usr 339 P.appendComponent("lib"); 340 P.appendComponent("gcc"); 341 switch (getTriple().getArch()) { 342 default: 343 llvm_unreachable("Invalid Darwin arch!"); 344 case llvm::Triple::x86: 345 case llvm::Triple::x86_64: 346 P.appendComponent("i686-apple-darwin10"); 347 break; 348 case llvm::Triple::arm: 349 case llvm::Triple::thumb: 350 P.appendComponent("arm-apple-darwin10"); 351 break; 352 case llvm::Triple::ppc: 353 case llvm::Triple::ppc64: 354 P.appendComponent("powerpc-apple-darwin10"); 355 break; 356 } 357 P.appendComponent("4.2.1"); 358 359 // Determine the arch specific GCC subdirectory. 360 const char *ArchSpecificDir = 0; 361 switch (getTriple().getArch()) { 362 default: 363 break; 364 case llvm::Triple::arm: 365 case llvm::Triple::thumb: { 366 std::string Triple = ComputeLLVMTriple(Args); 367 StringRef TripleStr = Triple; 368 if (TripleStr.startswith("armv5") || TripleStr.startswith("thumbv5")) 369 ArchSpecificDir = "v5"; 370 else if (TripleStr.startswith("armv6") || TripleStr.startswith("thumbv6")) 371 ArchSpecificDir = "v6"; 372 else if (TripleStr.startswith("armv7") || TripleStr.startswith("thumbv7")) 373 ArchSpecificDir = "v7"; 374 break; 375 } 376 case llvm::Triple::ppc64: 377 ArchSpecificDir = "ppc64"; 378 break; 379 case llvm::Triple::x86_64: 380 ArchSpecificDir = "x86_64"; 381 break; 382 } 383 384 if (ArchSpecificDir) { 385 P.appendComponent(ArchSpecificDir); 386 bool Exists; 387 if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) 388 CmdArgs.push_back(Args.MakeArgString("-L" + P.str())); 389 P.eraseComponent(); 390 } 391 392 bool Exists; 393 if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) 394 CmdArgs.push_back(Args.MakeArgString("-L" + P.str())); 395} 396 397void DarwinClang::AddLinkARCArgs(const ArgList &Args, 398 ArgStringList &CmdArgs) const { 399 400 CmdArgs.push_back("-force_load"); 401 llvm::sys::Path P(getDriver().ClangExecutable); 402 P.eraseComponent(); // 'clang' 403 P.eraseComponent(); // 'bin' 404 P.appendComponent("lib"); 405 P.appendComponent("arc"); 406 P.appendComponent("libarclite_"); 407 std::string s = P.str(); 408 // Mash in the platform. 409 if (isTargetIOSSimulator()) 410 s += "iphonesimulator"; 411 else if (isTargetIPhoneOS()) 412 s += "iphoneos"; 413 // FIXME: Remove this once we depend fully on -mios-simulator-version-min. 414 else if (ARCRuntimeForSimulator != ARCSimulator_None) 415 s += "iphonesimulator"; 416 else 417 s += "macosx"; 418 s += ".a"; 419 420 CmdArgs.push_back(Args.MakeArgString(s)); 421} 422 423void DarwinClang::AddLinkRuntimeLib(const ArgList &Args, 424 ArgStringList &CmdArgs, 425 const char *DarwinStaticLib) const { 426 llvm::sys::Path P(getDriver().ResourceDir); 427 P.appendComponent("lib"); 428 P.appendComponent("darwin"); 429 P.appendComponent(DarwinStaticLib); 430 431 // For now, allow missing resource libraries to support developers who may 432 // not have compiler-rt checked out or integrated into their build. 433 bool Exists; 434 if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) 435 CmdArgs.push_back(Args.MakeArgString(P.str())); 436} 437 438void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args, 439 ArgStringList &CmdArgs) const { 440 // Darwin doesn't support real static executables, don't link any runtime 441 // libraries with -static. 442 if (Args.hasArg(options::OPT_static)) 443 return; 444 445 // Reject -static-libgcc for now, we can deal with this when and if someone 446 // cares. This is useful in situations where someone wants to statically link 447 // something like libstdc++, and needs its runtime support routines. 448 if (const Arg *A = Args.getLastArg(options::OPT_static_libgcc)) { 449 getDriver().Diag(diag::err_drv_unsupported_opt) 450 << A->getAsString(Args); 451 return; 452 } 453 454 // Otherwise link libSystem, then the dynamic runtime library, and finally any 455 // target specific static runtime library. 456 CmdArgs.push_back("-lSystem"); 457 458 // Select the dynamic runtime library and the target specific static library. 459 if (isTargetIPhoneOS()) { 460 // If we are compiling as iOS / simulator, don't attempt to link libgcc_s.1, 461 // it never went into the SDK. 462 // Linking against libgcc_s.1 isn't needed for iOS 5.0+ 463 if (isIPhoneOSVersionLT(5, 0) && !isTargetIOSSimulator()) 464 CmdArgs.push_back("-lgcc_s.1"); 465 466 // We currently always need a static runtime library for iOS. 467 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.ios.a"); 468 } else { 469 // The dynamic runtime library was merged with libSystem for 10.6 and 470 // beyond; only 10.4 and 10.5 need an additional runtime library. 471 if (isMacosxVersionLT(10, 5)) 472 CmdArgs.push_back("-lgcc_s.10.4"); 473 else if (isMacosxVersionLT(10, 6)) 474 CmdArgs.push_back("-lgcc_s.10.5"); 475 476 // For OS X, we thought we would only need a static runtime library when 477 // targeting 10.4, to provide versions of the static functions which were 478 // omitted from 10.4.dylib. 479 // 480 // Unfortunately, that turned out to not be true, because Darwin system 481 // headers can still use eprintf on i386, and it is not exported from 482 // libSystem. Therefore, we still must provide a runtime library just for 483 // the tiny tiny handful of projects that *might* use that symbol. 484 if (isMacosxVersionLT(10, 5)) { 485 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.10.4.a"); 486 } else { 487 if (getTriple().getArch() == llvm::Triple::x86) 488 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.eprintf.a"); 489 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.osx.a"); 490 } 491 } 492} 493 494static inline StringRef SimulatorVersionDefineName() { 495 return "__IPHONE_OS_VERSION_MIN_REQUIRED"; 496} 497 498/// \brief Parse the simulator version define: 499/// __IPHONE_OS_VERSION_MIN_REQUIRED=([0-9])([0-9][0-9])([0-9][0-9]) 500// and return the grouped values as integers, e.g: 501// __IPHONE_OS_VERSION_MIN_REQUIRED=40201 502// will return Major=4, Minor=2, Micro=1. 503static bool GetVersionFromSimulatorDefine(StringRef define, 504 unsigned &Major, unsigned &Minor, 505 unsigned &Micro) { 506 assert(define.startswith(SimulatorVersionDefineName())); 507 StringRef name, version; 508 llvm::tie(name, version) = define.split('='); 509 if (version.empty()) 510 return false; 511 std::string verstr = version.str(); 512 char *end; 513 unsigned num = (unsigned) strtol(verstr.c_str(), &end, 10); 514 if (*end != '\0') 515 return false; 516 Major = num / 10000; 517 num = num % 10000; 518 Minor = num / 100; 519 Micro = num % 100; 520 return true; 521} 522 523void Darwin::AddDeploymentTarget(DerivedArgList &Args) const { 524 const OptTable &Opts = getDriver().getOpts(); 525 526 Arg *OSXVersion = Args.getLastArg(options::OPT_mmacosx_version_min_EQ); 527 Arg *iOSVersion = Args.getLastArg(options::OPT_miphoneos_version_min_EQ); 528 Arg *iOSSimVersion = Args.getLastArg( 529 options::OPT_mios_simulator_version_min_EQ); 530 531 // FIXME: HACK! When compiling for the simulator we don't get a 532 // '-miphoneos-version-min' to help us know whether there is an ARC runtime 533 // or not; try to parse a __IPHONE_OS_VERSION_MIN_REQUIRED 534 // define passed in command-line. 535 if (!iOSVersion && !iOSSimVersion) { 536 for (arg_iterator it = Args.filtered_begin(options::OPT_D), 537 ie = Args.filtered_end(); it != ie; ++it) { 538 StringRef define = (*it)->getValue(Args); 539 if (define.startswith(SimulatorVersionDefineName())) { 540 unsigned Major = 0, Minor = 0, Micro = 0; 541 if (GetVersionFromSimulatorDefine(define, Major, Minor, Micro) && 542 Major < 10 && Minor < 100 && Micro < 100) { 543 ARCRuntimeForSimulator = Major < 5 ? ARCSimulator_NoARCRuntime 544 : ARCSimulator_HasARCRuntime; 545 LibCXXForSimulator = Major < 5 ? LibCXXSimulator_NotAvailable 546 : LibCXXSimulator_Available; 547 } 548 break; 549 } 550 } 551 } 552 553 if (OSXVersion && (iOSVersion || iOSSimVersion)) { 554 getDriver().Diag(diag::err_drv_argument_not_allowed_with) 555 << OSXVersion->getAsString(Args) 556 << (iOSVersion ? iOSVersion : iOSSimVersion)->getAsString(Args); 557 iOSVersion = iOSSimVersion = 0; 558 } else if (iOSVersion && iOSSimVersion) { 559 getDriver().Diag(diag::err_drv_argument_not_allowed_with) 560 << iOSVersion->getAsString(Args) 561 << iOSSimVersion->getAsString(Args); 562 iOSSimVersion = 0; 563 } else if (!OSXVersion && !iOSVersion && !iOSSimVersion) { 564 // If no deployment target was specified on the command line, check for 565 // environment defines. 566 StringRef OSXTarget; 567 StringRef iOSTarget; 568 StringRef iOSSimTarget; 569 if (char *env = ::getenv("MACOSX_DEPLOYMENT_TARGET")) 570 OSXTarget = env; 571 if (char *env = ::getenv("IPHONEOS_DEPLOYMENT_TARGET")) 572 iOSTarget = env; 573 if (char *env = ::getenv("IOS_SIMULATOR_DEPLOYMENT_TARGET")) 574 iOSSimTarget = env; 575 576 // If no '-miphoneos-version-min' specified on the command line and 577 // IPHONEOS_DEPLOYMENT_TARGET is not defined, see if we can set the default 578 // based on isysroot. 579 if (iOSTarget.empty()) { 580 if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { 581 StringRef first, second; 582 StringRef isysroot = A->getValue(Args); 583 llvm::tie(first, second) = isysroot.split(StringRef("SDKs/iPhoneOS")); 584 if (second != "") 585 iOSTarget = second.substr(0,3); 586 } 587 } 588 589 // If no OSX or iOS target has been specified and we're compiling for armv7, 590 // go ahead as assume we're targeting iOS. 591 if (OSXTarget.empty() && iOSTarget.empty()) 592 if (getDarwinArchName(Args) == "armv7") 593 iOSTarget = "0.0"; 594 595 // Handle conflicting deployment targets 596 // 597 // FIXME: Don't hardcode default here. 598 599 // Do not allow conflicts with the iOS simulator target. 600 if (!iOSSimTarget.empty() && (!OSXTarget.empty() || !iOSTarget.empty())) { 601 getDriver().Diag(diag::err_drv_conflicting_deployment_targets) 602 << "IOS_SIMULATOR_DEPLOYMENT_TARGET" 603 << (!OSXTarget.empty() ? "MACOSX_DEPLOYMENT_TARGET" : 604 "IPHONEOS_DEPLOYMENT_TARGET"); 605 } 606 607 // Allow conflicts among OSX and iOS for historical reasons, but choose the 608 // default platform. 609 if (!OSXTarget.empty() && !iOSTarget.empty()) { 610 if (getTriple().getArch() == llvm::Triple::arm || 611 getTriple().getArch() == llvm::Triple::thumb) 612 OSXTarget = ""; 613 else 614 iOSTarget = ""; 615 } 616 617 if (!OSXTarget.empty()) { 618 const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ); 619 OSXVersion = Args.MakeJoinedArg(0, O, OSXTarget); 620 Args.append(OSXVersion); 621 } else if (!iOSTarget.empty()) { 622 const Option *O = Opts.getOption(options::OPT_miphoneos_version_min_EQ); 623 iOSVersion = Args.MakeJoinedArg(0, O, iOSTarget); 624 Args.append(iOSVersion); 625 } else if (!iOSSimTarget.empty()) { 626 const Option *O = Opts.getOption( 627 options::OPT_mios_simulator_version_min_EQ); 628 iOSSimVersion = Args.MakeJoinedArg(0, O, iOSSimTarget); 629 Args.append(iOSSimVersion); 630 } else { 631 // Otherwise, assume we are targeting OS X. 632 const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ); 633 OSXVersion = Args.MakeJoinedArg(0, O, MacosxVersionMin); 634 Args.append(OSXVersion); 635 } 636 } 637 638 // Reject invalid architecture combinations. 639 if (iOSSimVersion && (getTriple().getArch() != llvm::Triple::x86 && 640 getTriple().getArch() != llvm::Triple::x86_64)) { 641 getDriver().Diag(diag::err_drv_invalid_arch_for_deployment_target) 642 << getTriple().getArchName() << iOSSimVersion->getAsString(Args); 643 } 644 645 // Set the tool chain target information. 646 unsigned Major, Minor, Micro; 647 bool HadExtra; 648 if (OSXVersion) { 649 assert((!iOSVersion && !iOSSimVersion) && "Unknown target platform!"); 650 if (!Driver::GetReleaseVersion(OSXVersion->getValue(Args), Major, Minor, 651 Micro, HadExtra) || HadExtra || 652 Major != 10 || Minor >= 100 || Micro >= 100) 653 getDriver().Diag(diag::err_drv_invalid_version_number) 654 << OSXVersion->getAsString(Args); 655 } else { 656 const Arg *Version = iOSVersion ? iOSVersion : iOSSimVersion; 657 assert(Version && "Unknown target platform!"); 658 if (!Driver::GetReleaseVersion(Version->getValue(Args), Major, Minor, 659 Micro, HadExtra) || HadExtra || 660 Major >= 10 || Minor >= 100 || Micro >= 100) 661 getDriver().Diag(diag::err_drv_invalid_version_number) 662 << Version->getAsString(Args); 663 } 664 665 bool IsIOSSim = bool(iOSSimVersion); 666 667 // In GCC, the simulator historically was treated as being OS X in some 668 // contexts, like determining the link logic, despite generally being called 669 // with an iOS deployment target. For compatibility, we detect the 670 // simulator as iOS + x86, and treat it differently in a few contexts. 671 if (iOSVersion && (getTriple().getArch() == llvm::Triple::x86 || 672 getTriple().getArch() == llvm::Triple::x86_64)) 673 IsIOSSim = true; 674 675 setTarget(/*IsIPhoneOS=*/ !OSXVersion, Major, Minor, Micro, IsIOSSim); 676} 677 678void DarwinClang::AddCXXStdlibLibArgs(const ArgList &Args, 679 ArgStringList &CmdArgs) const { 680 CXXStdlibType Type = GetCXXStdlibType(Args); 681 682 switch (Type) { 683 case ToolChain::CST_Libcxx: 684 CmdArgs.push_back("-lc++"); 685 break; 686 687 case ToolChain::CST_Libstdcxx: { 688 // Unfortunately, -lstdc++ doesn't always exist in the standard search path; 689 // it was previously found in the gcc lib dir. However, for all the Darwin 690 // platforms we care about it was -lstdc++.6, so we search for that 691 // explicitly if we can't see an obvious -lstdc++ candidate. 692 693 // Check in the sysroot first. 694 bool Exists; 695 if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { 696 llvm::sys::Path P(A->getValue(Args)); 697 P.appendComponent("usr"); 698 P.appendComponent("lib"); 699 P.appendComponent("libstdc++.dylib"); 700 701 if (llvm::sys::fs::exists(P.str(), Exists) || !Exists) { 702 P.eraseComponent(); 703 P.appendComponent("libstdc++.6.dylib"); 704 if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) { 705 CmdArgs.push_back(Args.MakeArgString(P.str())); 706 return; 707 } 708 } 709 } 710 711 // Otherwise, look in the root. 712 if ((llvm::sys::fs::exists("/usr/lib/libstdc++.dylib", Exists) || !Exists)&& 713 (!llvm::sys::fs::exists("/usr/lib/libstdc++.6.dylib", Exists) && Exists)){ 714 CmdArgs.push_back("/usr/lib/libstdc++.6.dylib"); 715 return; 716 } 717 718 // Otherwise, let the linker search. 719 CmdArgs.push_back("-lstdc++"); 720 break; 721 } 722 } 723} 724 725void DarwinClang::AddCCKextLibArgs(const ArgList &Args, 726 ArgStringList &CmdArgs) const { 727 728 // For Darwin platforms, use the compiler-rt-based support library 729 // instead of the gcc-provided one (which is also incidentally 730 // only present in the gcc lib dir, which makes it hard to find). 731 732 llvm::sys::Path P(getDriver().ResourceDir); 733 P.appendComponent("lib"); 734 P.appendComponent("darwin"); 735 P.appendComponent("libclang_rt.cc_kext.a"); 736 737 // For now, allow missing resource libraries to support developers who may 738 // not have compiler-rt checked out or integrated into their build. 739 bool Exists; 740 if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) 741 CmdArgs.push_back(Args.MakeArgString(P.str())); 742} 743 744DerivedArgList *Darwin::TranslateArgs(const DerivedArgList &Args, 745 const char *BoundArch) const { 746 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); 747 const OptTable &Opts = getDriver().getOpts(); 748 749 // FIXME: We really want to get out of the tool chain level argument 750 // translation business, as it makes the driver functionality much 751 // more opaque. For now, we follow gcc closely solely for the 752 // purpose of easily achieving feature parity & testability. Once we 753 // have something that works, we should reevaluate each translation 754 // and try to push it down into tool specific logic. 755 756 for (ArgList::const_iterator it = Args.begin(), 757 ie = Args.end(); it != ie; ++it) { 758 Arg *A = *it; 759 760 if (A->getOption().matches(options::OPT_Xarch__)) { 761 // Skip this argument unless the architecture matches either the toolchain 762 // triple arch, or the arch being bound. 763 // 764 // FIXME: Canonicalize name. 765 StringRef XarchArch = A->getValue(Args, 0); 766 if (!(XarchArch == getArchName() || 767 (BoundArch && XarchArch == BoundArch))) 768 continue; 769 770 Arg *OriginalArg = A; 771 unsigned Index = Args.getBaseArgs().MakeIndex(A->getValue(Args, 1)); 772 unsigned Prev = Index; 773 Arg *XarchArg = Opts.ParseOneArg(Args, Index); 774 775 // If the argument parsing failed or more than one argument was 776 // consumed, the -Xarch_ argument's parameter tried to consume 777 // extra arguments. Emit an error and ignore. 778 // 779 // We also want to disallow any options which would alter the 780 // driver behavior; that isn't going to work in our model. We 781 // use isDriverOption() as an approximation, although things 782 // like -O4 are going to slip through. 783 if (!XarchArg || Index > Prev + 1) { 784 getDriver().Diag(diag::err_drv_invalid_Xarch_argument_with_args) 785 << A->getAsString(Args); 786 continue; 787 } else if (XarchArg->getOption().isDriverOption()) { 788 getDriver().Diag(diag::err_drv_invalid_Xarch_argument_isdriver) 789 << A->getAsString(Args); 790 continue; 791 } 792 793 XarchArg->setBaseArg(A); 794 A = XarchArg; 795 796 DAL->AddSynthesizedArg(A); 797 798 // Linker input arguments require custom handling. The problem is that we 799 // have already constructed the phase actions, so we can not treat them as 800 // "input arguments". 801 if (A->getOption().isLinkerInput()) { 802 // Convert the argument into individual Zlinker_input_args. 803 for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) { 804 DAL->AddSeparateArg(OriginalArg, 805 Opts.getOption(options::OPT_Zlinker_input), 806 A->getValue(Args, i)); 807 808 } 809 continue; 810 } 811 } 812 813 // Sob. These is strictly gcc compatible for the time being. Apple 814 // gcc translates options twice, which means that self-expanding 815 // options add duplicates. 816 switch ((options::ID) A->getOption().getID()) { 817 default: 818 DAL->append(A); 819 break; 820 821 case options::OPT_mkernel: 822 case options::OPT_fapple_kext: 823 DAL->append(A); 824 DAL->AddFlagArg(A, Opts.getOption(options::OPT_static)); 825 break; 826 827 case options::OPT_dependency_file: 828 DAL->AddSeparateArg(A, Opts.getOption(options::OPT_MF), 829 A->getValue(Args)); 830 break; 831 832 case options::OPT_gfull: 833 DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); 834 DAL->AddFlagArg(A, 835 Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols)); 836 break; 837 838 case options::OPT_gused: 839 DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); 840 DAL->AddFlagArg(A, 841 Opts.getOption(options::OPT_feliminate_unused_debug_symbols)); 842 break; 843 844 case options::OPT_shared: 845 DAL->AddFlagArg(A, Opts.getOption(options::OPT_dynamiclib)); 846 break; 847 848 case options::OPT_fconstant_cfstrings: 849 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mconstant_cfstrings)); 850 break; 851 852 case options::OPT_fno_constant_cfstrings: 853 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_constant_cfstrings)); 854 break; 855 856 case options::OPT_Wnonportable_cfstrings: 857 DAL->AddFlagArg(A, 858 Opts.getOption(options::OPT_mwarn_nonportable_cfstrings)); 859 break; 860 861 case options::OPT_Wno_nonportable_cfstrings: 862 DAL->AddFlagArg(A, 863 Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings)); 864 break; 865 866 case options::OPT_fpascal_strings: 867 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mpascal_strings)); 868 break; 869 870 case options::OPT_fno_pascal_strings: 871 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_pascal_strings)); 872 break; 873 } 874 } 875 876 if (getTriple().getArch() == llvm::Triple::x86 || 877 getTriple().getArch() == llvm::Triple::x86_64) 878 if (!Args.hasArgNoClaim(options::OPT_mtune_EQ)) 879 DAL->AddJoinedArg(0, Opts.getOption(options::OPT_mtune_EQ), "core2"); 880 881 // Add the arch options based on the particular spelling of -arch, to match 882 // how the driver driver works. 883 if (BoundArch) { 884 StringRef Name = BoundArch; 885 const Option *MCpu = Opts.getOption(options::OPT_mcpu_EQ); 886 const Option *MArch = Opts.getOption(options::OPT_march_EQ); 887 888 // This code must be kept in sync with LLVM's getArchTypeForDarwinArch, 889 // which defines the list of which architectures we accept. 890 if (Name == "ppc") 891 ; 892 else if (Name == "ppc601") 893 DAL->AddJoinedArg(0, MCpu, "601"); 894 else if (Name == "ppc603") 895 DAL->AddJoinedArg(0, MCpu, "603"); 896 else if (Name == "ppc604") 897 DAL->AddJoinedArg(0, MCpu, "604"); 898 else if (Name == "ppc604e") 899 DAL->AddJoinedArg(0, MCpu, "604e"); 900 else if (Name == "ppc750") 901 DAL->AddJoinedArg(0, MCpu, "750"); 902 else if (Name == "ppc7400") 903 DAL->AddJoinedArg(0, MCpu, "7400"); 904 else if (Name == "ppc7450") 905 DAL->AddJoinedArg(0, MCpu, "7450"); 906 else if (Name == "ppc970") 907 DAL->AddJoinedArg(0, MCpu, "970"); 908 909 else if (Name == "ppc64") 910 DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64)); 911 912 else if (Name == "i386") 913 ; 914 else if (Name == "i486") 915 DAL->AddJoinedArg(0, MArch, "i486"); 916 else if (Name == "i586") 917 DAL->AddJoinedArg(0, MArch, "i586"); 918 else if (Name == "i686") 919 DAL->AddJoinedArg(0, MArch, "i686"); 920 else if (Name == "pentium") 921 DAL->AddJoinedArg(0, MArch, "pentium"); 922 else if (Name == "pentium2") 923 DAL->AddJoinedArg(0, MArch, "pentium2"); 924 else if (Name == "pentpro") 925 DAL->AddJoinedArg(0, MArch, "pentiumpro"); 926 else if (Name == "pentIIm3") 927 DAL->AddJoinedArg(0, MArch, "pentium2"); 928 929 else if (Name == "x86_64") 930 DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64)); 931 932 else if (Name == "arm") 933 DAL->AddJoinedArg(0, MArch, "armv4t"); 934 else if (Name == "armv4t") 935 DAL->AddJoinedArg(0, MArch, "armv4t"); 936 else if (Name == "armv5") 937 DAL->AddJoinedArg(0, MArch, "armv5tej"); 938 else if (Name == "xscale") 939 DAL->AddJoinedArg(0, MArch, "xscale"); 940 else if (Name == "armv6") 941 DAL->AddJoinedArg(0, MArch, "armv6k"); 942 else if (Name == "armv7") 943 DAL->AddJoinedArg(0, MArch, "armv7a"); 944 945 else 946 llvm_unreachable("invalid Darwin arch"); 947 } 948 949 // Add an explicit version min argument for the deployment target. We do this 950 // after argument translation because -Xarch_ arguments may add a version min 951 // argument. 952 AddDeploymentTarget(*DAL); 953 954 // Validate the C++ standard library choice. 955 CXXStdlibType Type = GetCXXStdlibType(*DAL); 956 if (Type == ToolChain::CST_Libcxx) { 957 switch (LibCXXForSimulator) { 958 case LibCXXSimulator_None: 959 // Handle non-simulator cases. 960 if (isTargetIPhoneOS()) { 961 if (isIPhoneOSVersionLT(5, 0)) { 962 getDriver().Diag(clang::diag::err_drv_invalid_libcxx_deployment) 963 << "iOS 5.0"; 964 } 965 } 966 break; 967 case LibCXXSimulator_NotAvailable: 968 getDriver().Diag(clang::diag::err_drv_invalid_libcxx_deployment) 969 << "iOS 5.0"; 970 break; 971 case LibCXXSimulator_Available: 972 break; 973 } 974 } 975 976 return DAL; 977} 978 979bool Darwin::IsUnwindTablesDefault() const { 980 // FIXME: Gross; we should probably have some separate target 981 // definition, possibly even reusing the one in clang. 982 return getArchName() == "x86_64"; 983} 984 985bool Darwin::UseDwarfDebugFlags() const { 986 if (const char *S = ::getenv("RC_DEBUG_OPTIONS")) 987 return S[0] != '\0'; 988 return false; 989} 990 991bool Darwin::UseSjLjExceptions() const { 992 // Darwin uses SjLj exceptions on ARM. 993 return (getTriple().getArch() == llvm::Triple::arm || 994 getTriple().getArch() == llvm::Triple::thumb); 995} 996 997const char *Darwin::GetDefaultRelocationModel() const { 998 return "pic"; 999} 1000 1001const char *Darwin::GetForcedPicModel() const { 1002 if (getArchName() == "x86_64") 1003 return "pic"; 1004 return 0; 1005} 1006 1007bool Darwin::SupportsProfiling() const { 1008 // Profiling instrumentation is only supported on x86. 1009 return getArchName() == "i386" || getArchName() == "x86_64"; 1010} 1011 1012bool Darwin::SupportsObjCGC() const { 1013 // Garbage collection is supported everywhere except on iPhone OS. 1014 return !isTargetIPhoneOS(); 1015} 1016 1017std::string 1018Darwin_Generic_GCC::ComputeEffectiveClangTriple(const ArgList &Args, 1019 types::ID InputType) const { 1020 return ComputeLLVMTriple(Args, InputType); 1021} 1022 1023/// Generic_GCC - A tool chain using the 'gcc' command to perform 1024/// all subcommands; this relies on gcc translating the majority of 1025/// command line options. 1026 1027/// \brief Parse a GCCVersion object out of a string of text. 1028/// 1029/// This is the primary means of forming GCCVersion objects. 1030/*static*/ 1031Generic_GCC::GCCVersion Linux::GCCVersion::Parse(StringRef VersionText) { 1032 const GCCVersion BadVersion = { VersionText.str(), -1, -1, -1, "" }; 1033 std::pair<StringRef, StringRef> First = VersionText.split('.'); 1034 std::pair<StringRef, StringRef> Second = First.second.split('.'); 1035 1036 GCCVersion GoodVersion = { VersionText.str(), -1, -1, -1, "" }; 1037 if (First.first.getAsInteger(10, GoodVersion.Major) || 1038 GoodVersion.Major < 0) 1039 return BadVersion; 1040 if (Second.first.getAsInteger(10, GoodVersion.Minor) || 1041 GoodVersion.Minor < 0) 1042 return BadVersion; 1043 1044 // First look for a number prefix and parse that if present. Otherwise just 1045 // stash the entire patch string in the suffix, and leave the number 1046 // unspecified. This covers versions strings such as: 1047 // 4.4 1048 // 4.4.0 1049 // 4.4.x 1050 // 4.4.2-rc4 1051 // 4.4.x-patched 1052 // And retains any patch number it finds. 1053 StringRef PatchText = GoodVersion.PatchSuffix = Second.second.str(); 1054 if (!PatchText.empty()) { 1055 if (unsigned EndNumber = PatchText.find_first_not_of("0123456789")) { 1056 // Try to parse the number and any suffix. 1057 if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) || 1058 GoodVersion.Patch < 0) 1059 return BadVersion; 1060 GoodVersion.PatchSuffix = PatchText.substr(EndNumber).str(); 1061 } 1062 } 1063 1064 return GoodVersion; 1065} 1066 1067/// \brief Less-than for GCCVersion, implementing a Strict Weak Ordering. 1068bool Generic_GCC::GCCVersion::operator<(const GCCVersion &RHS) const { 1069 if (Major < RHS.Major) return true; if (Major > RHS.Major) return false; 1070 if (Minor < RHS.Minor) return true; if (Minor > RHS.Minor) return false; 1071 1072 // Note that we rank versions with *no* patch specified is better than ones 1073 // hard-coding a patch version. Thus if the RHS has no patch, it always 1074 // wins, and the LHS only wins if it has no patch and the RHS does have 1075 // a patch. 1076 if (RHS.Patch == -1) return true; if (Patch == -1) return false; 1077 if (Patch < RHS.Patch) return true; if (Patch > RHS.Patch) return false; 1078 1079 // Finally, between completely tied version numbers, the version with the 1080 // suffix loses as we prefer full releases. 1081 if (RHS.PatchSuffix.empty()) return true; 1082 return false; 1083} 1084 1085/// \brief Construct a GCCInstallationDetector from the driver. 1086/// 1087/// This performs all of the autodetection and sets up the various paths. 1088/// Once constructed, a GCCInstallation is esentially immutable. 1089Generic_GCC::GCCInstallationDetector::GCCInstallationDetector(const Driver &D) 1090 : IsValid(false), 1091 GccTriple(D.DefaultHostTriple) { 1092 // FIXME: Using CXX_INCLUDE_ROOT is here is a bit of a hack, but 1093 // avoids adding yet another option to configure/cmake. 1094 // It would probably be cleaner to break it in two variables 1095 // CXX_GCC_ROOT with just /foo/bar 1096 // CXX_GCC_VER with 4.5.2 1097 // Then we would have 1098 // CXX_INCLUDE_ROOT = CXX_GCC_ROOT/include/c++/CXX_GCC_VER 1099 // and this function would return 1100 // CXX_GCC_ROOT/lib/gcc/CXX_INCLUDE_ARCH/CXX_GCC_VER 1101 llvm::SmallString<128> CxxIncludeRoot(CXX_INCLUDE_ROOT); 1102 if (CxxIncludeRoot != "") { 1103 // This is of the form /foo/bar/include/c++/4.5.2/ 1104 if (CxxIncludeRoot.back() == '/') 1105 llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the / 1106 StringRef Version = llvm::sys::path::filename(CxxIncludeRoot); 1107 llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the version 1108 llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the c++ 1109 llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the include 1110 GccInstallPath = CxxIncludeRoot.str(); 1111 GccInstallPath.append("/lib/gcc/"); 1112 GccInstallPath.append(CXX_INCLUDE_ARCH); 1113 GccInstallPath.append("/"); 1114 GccInstallPath.append(Version); 1115 GccParentLibPath = GccInstallPath + "/../../.."; 1116 IsValid = true; 1117 return; 1118 } 1119 1120 llvm::Triple::ArchType HostArch = llvm::Triple(GccTriple).getArch(); 1121 // The library directories which may contain GCC installations. 1122 SmallVector<StringRef, 4> CandidateLibDirs; 1123 // The compatible GCC triples for this particular architecture. 1124 SmallVector<StringRef, 10> CandidateTriples; 1125 CollectLibDirsAndTriples(HostArch, CandidateLibDirs, CandidateTriples); 1126 1127 // Always include the default host triple as the final fallback if no 1128 // specific triple is detected. 1129 CandidateTriples.push_back(D.DefaultHostTriple); 1130 1131 // Compute the set of prefixes for our search. 1132 SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(), 1133 D.PrefixDirs.end()); 1134 Prefixes.push_back(D.SysRoot); 1135 Prefixes.push_back(D.SysRoot + "/usr"); 1136 Prefixes.push_back(D.InstalledDir + "/.."); 1137 1138 // Loop over the various components which exist and select the best GCC 1139 // installation available. GCC installs are ranked by version number. 1140 Version = GCCVersion::Parse("0.0.0"); 1141 for (unsigned i = 0, ie = Prefixes.size(); i < ie; ++i) { 1142 if (!llvm::sys::fs::exists(Prefixes[i])) 1143 continue; 1144 for (unsigned j = 0, je = CandidateLibDirs.size(); j < je; ++j) { 1145 const std::string LibDir = Prefixes[i] + CandidateLibDirs[j].str(); 1146 if (!llvm::sys::fs::exists(LibDir)) 1147 continue; 1148 for (unsigned k = 0, ke = CandidateTriples.size(); k < ke; ++k) 1149 ScanLibDirForGCCTriple(LibDir, CandidateTriples[k]); 1150 } 1151 } 1152} 1153 1154/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples( 1155 llvm::Triple::ArchType HostArch, SmallVectorImpl<StringRef> &LibDirs, 1156 SmallVectorImpl<StringRef> &Triples) { 1157 if (HostArch == llvm::Triple::arm || HostArch == llvm::Triple::thumb) { 1158 static const char *const ARMLibDirs[] = { "/lib" }; 1159 static const char *const ARMTriples[] = { "arm-linux-gnueabi" }; 1160 LibDirs.append(ARMLibDirs, ARMLibDirs + llvm::array_lengthof(ARMLibDirs)); 1161 Triples.append(ARMTriples, ARMTriples + llvm::array_lengthof(ARMTriples)); 1162 } else if (HostArch == llvm::Triple::x86_64) { 1163 static const char *const X86_64LibDirs[] = { "/lib64", "/lib" }; 1164 static const char *const X86_64Triples[] = { 1165 "x86_64-linux-gnu", 1166 "x86_64-unknown-linux-gnu", 1167 "x86_64-pc-linux-gnu", 1168 "x86_64-redhat-linux6E", 1169 "x86_64-redhat-linux", 1170 "x86_64-suse-linux", 1171 "x86_64-manbo-linux-gnu", 1172 "x86_64-linux-gnu", 1173 "x86_64-slackware-linux" 1174 }; 1175 LibDirs.append(X86_64LibDirs, 1176 X86_64LibDirs + llvm::array_lengthof(X86_64LibDirs)); 1177 Triples.append(X86_64Triples, 1178 X86_64Triples + llvm::array_lengthof(X86_64Triples)); 1179 } else if (HostArch == llvm::Triple::x86) { 1180 static const char *const X86LibDirs[] = { "/lib32", "/lib" }; 1181 static const char *const X86Triples[] = { 1182 "i686-linux-gnu", 1183 "i686-pc-linux-gnu", 1184 "i486-linux-gnu", 1185 "i386-linux-gnu", 1186 "i686-redhat-linux", 1187 "i586-redhat-linux", 1188 "i386-redhat-linux", 1189 "i586-suse-linux", 1190 "i486-slackware-linux" 1191 }; 1192 LibDirs.append(X86LibDirs, X86LibDirs + llvm::array_lengthof(X86LibDirs)); 1193 Triples.append(X86Triples, X86Triples + llvm::array_lengthof(X86Triples)); 1194 } else if (HostArch == llvm::Triple::ppc) { 1195 static const char *const PPCLibDirs[] = { "/lib32", "/lib" }; 1196 static const char *const PPCTriples[] = { 1197 "powerpc-linux-gnu", 1198 "powerpc-unknown-linux-gnu" 1199 }; 1200 LibDirs.append(PPCLibDirs, PPCLibDirs + llvm::array_lengthof(PPCLibDirs)); 1201 Triples.append(PPCTriples, PPCTriples + llvm::array_lengthof(PPCTriples)); 1202 } else if (HostArch == llvm::Triple::ppc64) { 1203 static const char *const PPC64LibDirs[] = { "/lib64", "/lib" }; 1204 static const char *const PPC64Triples[] = { 1205 "powerpc64-unknown-linux-gnu" 1206 }; 1207 LibDirs.append(PPC64LibDirs, 1208 PPC64LibDirs + llvm::array_lengthof(PPC64LibDirs)); 1209 Triples.append(PPC64Triples, 1210 PPC64Triples + llvm::array_lengthof(PPC64Triples)); 1211 } 1212} 1213 1214void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple( 1215 const std::string &LibDir, StringRef CandidateTriple) { 1216 // There are various different suffixes involving the triple we 1217 // check for. We also record what is necessary to walk from each back 1218 // up to the lib directory. 1219 const std::string Suffixes[] = { 1220 "/gcc/" + CandidateTriple.str(), 1221 "/" + CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), 1222 1223 // Ubuntu has a strange mis-matched pair of triples that this happens to 1224 // match. 1225 // FIXME: It may be worthwhile to generalize this and look for a second 1226 // triple. 1227 "/" + CandidateTriple.str() + "/gcc/i686-linux-gnu" 1228 }; 1229 const std::string InstallSuffixes[] = { 1230 "/../../..", 1231 "/../../../..", 1232 "/../../../.." 1233 }; 1234 // Only look at the final, weird Ubuntu suffix for i386-linux-gnu. 1235 const unsigned NumSuffixes = (llvm::array_lengthof(Suffixes) - 1236 (CandidateTriple != "i386-linux-gnu")); 1237 for (unsigned i = 0; i < NumSuffixes; ++i) { 1238 StringRef Suffix = Suffixes[i]; 1239 llvm::error_code EC; 1240 for (llvm::sys::fs::directory_iterator LI(LibDir + Suffix, EC), LE; 1241 !EC && LI != LE; LI = LI.increment(EC)) { 1242 StringRef VersionText = llvm::sys::path::filename(LI->path()); 1243 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText); 1244 static const GCCVersion MinVersion = { "4.1.1", 4, 1, 1, "" }; 1245 if (CandidateVersion < MinVersion) 1246 continue; 1247 if (CandidateVersion <= Version) 1248 continue; 1249 if (!llvm::sys::fs::exists(LI->path() + "/crtbegin.o")) 1250 continue; 1251 1252 Version = CandidateVersion; 1253 GccTriple = CandidateTriple.str(); 1254 // FIXME: We hack together the directory name here instead of 1255 // using LI to ensure stable path separators across Windows and 1256 // Linux. 1257 GccInstallPath = LibDir + Suffixes[i] + "/" + VersionText.str(); 1258 GccParentLibPath = GccInstallPath + InstallSuffixes[i]; 1259 IsValid = true; 1260 } 1261 } 1262} 1263 1264Generic_GCC::Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple) 1265 : ToolChain(Host, Triple), GCCInstallation(getDriver()) { 1266 getProgramPaths().push_back(getDriver().getInstalledDir()); 1267 if (getDriver().getInstalledDir() != getDriver().Dir) 1268 getProgramPaths().push_back(getDriver().Dir); 1269} 1270 1271Generic_GCC::~Generic_GCC() { 1272 // Free tool implementations. 1273 for (llvm::DenseMap<unsigned, Tool*>::iterator 1274 it = Tools.begin(), ie = Tools.end(); it != ie; ++it) 1275 delete it->second; 1276} 1277 1278Tool &Generic_GCC::SelectTool(const Compilation &C, 1279 const JobAction &JA, 1280 const ActionList &Inputs) const { 1281 Action::ActionClass Key; 1282 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1283 Key = Action::AnalyzeJobClass; 1284 else 1285 Key = JA.getKind(); 1286 1287 Tool *&T = Tools[Key]; 1288 if (!T) { 1289 switch (Key) { 1290 case Action::InputClass: 1291 case Action::BindArchClass: 1292 llvm_unreachable("Invalid tool kind."); 1293 case Action::PreprocessJobClass: 1294 T = new tools::gcc::Preprocess(*this); break; 1295 case Action::PrecompileJobClass: 1296 T = new tools::gcc::Precompile(*this); break; 1297 case Action::AnalyzeJobClass: 1298 T = new tools::Clang(*this); break; 1299 case Action::CompileJobClass: 1300 T = new tools::gcc::Compile(*this); break; 1301 case Action::AssembleJobClass: 1302 T = new tools::gcc::Assemble(*this); break; 1303 case Action::LinkJobClass: 1304 T = new tools::gcc::Link(*this); break; 1305 1306 // This is a bit ungeneric, but the only platform using a driver 1307 // driver is Darwin. 1308 case Action::LipoJobClass: 1309 T = new tools::darwin::Lipo(*this); break; 1310 case Action::DsymutilJobClass: 1311 T = new tools::darwin::Dsymutil(*this); break; 1312 case Action::VerifyJobClass: 1313 T = new tools::darwin::VerifyDebug(*this); break; 1314 } 1315 } 1316 1317 return *T; 1318} 1319 1320bool Generic_GCC::IsUnwindTablesDefault() const { 1321 // FIXME: Gross; we should probably have some separate target 1322 // definition, possibly even reusing the one in clang. 1323 return getArchName() == "x86_64"; 1324} 1325 1326const char *Generic_GCC::GetDefaultRelocationModel() const { 1327 return "static"; 1328} 1329 1330const char *Generic_GCC::GetForcedPicModel() const { 1331 return 0; 1332} 1333 1334/// TCEToolChain - A tool chain using the llvm bitcode tools to perform 1335/// all subcommands. See http://tce.cs.tut.fi for our peculiar target. 1336/// Currently does not support anything else but compilation. 1337 1338TCEToolChain::TCEToolChain(const HostInfo &Host, const llvm::Triple& Triple) 1339 : ToolChain(Host, Triple) { 1340 // Path mangling to find libexec 1341 std::string Path(getDriver().Dir); 1342 1343 Path += "/../libexec"; 1344 getProgramPaths().push_back(Path); 1345} 1346 1347TCEToolChain::~TCEToolChain() { 1348 for (llvm::DenseMap<unsigned, Tool*>::iterator 1349 it = Tools.begin(), ie = Tools.end(); it != ie; ++it) 1350 delete it->second; 1351} 1352 1353bool TCEToolChain::IsMathErrnoDefault() const { 1354 return true; 1355} 1356 1357bool TCEToolChain::IsUnwindTablesDefault() const { 1358 return false; 1359} 1360 1361const char *TCEToolChain::GetDefaultRelocationModel() const { 1362 return "static"; 1363} 1364 1365const char *TCEToolChain::GetForcedPicModel() const { 1366 return 0; 1367} 1368 1369Tool &TCEToolChain::SelectTool(const Compilation &C, 1370 const JobAction &JA, 1371 const ActionList &Inputs) const { 1372 Action::ActionClass Key; 1373 Key = Action::AnalyzeJobClass; 1374 1375 Tool *&T = Tools[Key]; 1376 if (!T) { 1377 switch (Key) { 1378 case Action::PreprocessJobClass: 1379 T = new tools::gcc::Preprocess(*this); break; 1380 case Action::AnalyzeJobClass: 1381 T = new tools::Clang(*this); break; 1382 default: 1383 llvm_unreachable("Unsupported action for TCE target."); 1384 } 1385 } 1386 return *T; 1387} 1388 1389/// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly. 1390 1391OpenBSD::OpenBSD(const HostInfo &Host, const llvm::Triple& Triple) 1392 : Generic_ELF(Host, Triple) { 1393 getFilePaths().push_back(getDriver().Dir + "/../lib"); 1394 getFilePaths().push_back("/usr/lib"); 1395} 1396 1397Tool &OpenBSD::SelectTool(const Compilation &C, const JobAction &JA, 1398 const ActionList &Inputs) const { 1399 Action::ActionClass Key; 1400 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1401 Key = Action::AnalyzeJobClass; 1402 else 1403 Key = JA.getKind(); 1404 1405 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 1406 options::OPT_no_integrated_as, 1407 IsIntegratedAssemblerDefault()); 1408 1409 Tool *&T = Tools[Key]; 1410 if (!T) { 1411 switch (Key) { 1412 case Action::AssembleJobClass: { 1413 if (UseIntegratedAs) 1414 T = new tools::ClangAs(*this); 1415 else 1416 T = new tools::openbsd::Assemble(*this); 1417 break; 1418 } 1419 case Action::LinkJobClass: 1420 T = new tools::openbsd::Link(*this); break; 1421 default: 1422 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1423 } 1424 } 1425 1426 return *T; 1427} 1428 1429/// FreeBSD - FreeBSD tool chain which can call as(1) and ld(1) directly. 1430 1431FreeBSD::FreeBSD(const HostInfo &Host, const llvm::Triple& Triple) 1432 : Generic_ELF(Host, Triple) { 1433 1434 // Determine if we are compiling 32-bit code on an x86_64 platform. 1435 bool Lib32 = false; 1436 if (Triple.getArch() == llvm::Triple::x86 && 1437 llvm::Triple(getDriver().DefaultHostTriple).getArch() == 1438 llvm::Triple::x86_64) 1439 Lib32 = true; 1440 1441 if (Triple.getArch() == llvm::Triple::ppc && 1442 llvm::Triple(getDriver().DefaultHostTriple).getArch() == 1443 llvm::Triple::ppc64) 1444 Lib32 = true; 1445 1446 if (Lib32) { 1447 getFilePaths().push_back("/usr/lib32"); 1448 } else { 1449 getFilePaths().push_back("/usr/lib"); 1450 } 1451} 1452 1453Tool &FreeBSD::SelectTool(const Compilation &C, const JobAction &JA, 1454 const ActionList &Inputs) const { 1455 Action::ActionClass Key; 1456 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1457 Key = Action::AnalyzeJobClass; 1458 else 1459 Key = JA.getKind(); 1460 1461 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 1462 options::OPT_no_integrated_as, 1463 IsIntegratedAssemblerDefault()); 1464 1465 Tool *&T = Tools[Key]; 1466 if (!T) { 1467 switch (Key) { 1468 case Action::AssembleJobClass: 1469 if (UseIntegratedAs) 1470 T = new tools::ClangAs(*this); 1471 else 1472 T = new tools::freebsd::Assemble(*this); 1473 break; 1474 case Action::LinkJobClass: 1475 T = new tools::freebsd::Link(*this); break; 1476 default: 1477 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1478 } 1479 } 1480 1481 return *T; 1482} 1483 1484/// NetBSD - NetBSD tool chain which can call as(1) and ld(1) directly. 1485 1486NetBSD::NetBSD(const HostInfo &Host, const llvm::Triple& Triple, 1487 const llvm::Triple& ToolTriple) 1488 : Generic_ELF(Host, Triple), ToolTriple(ToolTriple) { 1489 1490 // Determine if we are compiling 32-bit code on an x86_64 platform. 1491 bool Lib32 = false; 1492 if (ToolTriple.getArch() == llvm::Triple::x86_64 && 1493 Triple.getArch() == llvm::Triple::x86) 1494 Lib32 = true; 1495 1496 if (getDriver().UseStdLib) { 1497 if (Lib32) 1498 getFilePaths().push_back("=/usr/lib/i386"); 1499 else 1500 getFilePaths().push_back("=/usr/lib"); 1501 } 1502} 1503 1504Tool &NetBSD::SelectTool(const Compilation &C, const JobAction &JA, 1505 const ActionList &Inputs) const { 1506 Action::ActionClass Key; 1507 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1508 Key = Action::AnalyzeJobClass; 1509 else 1510 Key = JA.getKind(); 1511 1512 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 1513 options::OPT_no_integrated_as, 1514 IsIntegratedAssemblerDefault()); 1515 1516 Tool *&T = Tools[Key]; 1517 if (!T) { 1518 switch (Key) { 1519 case Action::AssembleJobClass: 1520 if (UseIntegratedAs) 1521 T = new tools::ClangAs(*this); 1522 else 1523 T = new tools::netbsd::Assemble(*this, ToolTriple); 1524 break; 1525 case Action::LinkJobClass: 1526 T = new tools::netbsd::Link(*this, ToolTriple); 1527 break; 1528 default: 1529 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1530 } 1531 } 1532 1533 return *T; 1534} 1535 1536/// Minix - Minix tool chain which can call as(1) and ld(1) directly. 1537 1538Minix::Minix(const HostInfo &Host, const llvm::Triple& Triple) 1539 : Generic_GCC(Host, Triple) { 1540 getFilePaths().push_back(getDriver().Dir + "/../lib"); 1541 getFilePaths().push_back("/usr/lib"); 1542 getFilePaths().push_back("/usr/gnu/lib"); 1543 getFilePaths().push_back("/usr/gnu/lib/gcc/i686-pc-minix/4.4.3"); 1544} 1545 1546Tool &Minix::SelectTool(const Compilation &C, const JobAction &JA, 1547 const ActionList &Inputs) const { 1548 Action::ActionClass Key; 1549 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1550 Key = Action::AnalyzeJobClass; 1551 else 1552 Key = JA.getKind(); 1553 1554 Tool *&T = Tools[Key]; 1555 if (!T) { 1556 switch (Key) { 1557 case Action::AssembleJobClass: 1558 T = new tools::minix::Assemble(*this); break; 1559 case Action::LinkJobClass: 1560 T = new tools::minix::Link(*this); break; 1561 default: 1562 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1563 } 1564 } 1565 1566 return *T; 1567} 1568 1569/// AuroraUX - AuroraUX tool chain which can call as(1) and ld(1) directly. 1570 1571AuroraUX::AuroraUX(const HostInfo &Host, const llvm::Triple& Triple) 1572 : Generic_GCC(Host, Triple) { 1573 1574 getProgramPaths().push_back(getDriver().getInstalledDir()); 1575 if (getDriver().getInstalledDir() != getDriver().Dir) 1576 getProgramPaths().push_back(getDriver().Dir); 1577 1578 getFilePaths().push_back(getDriver().Dir + "/../lib"); 1579 getFilePaths().push_back("/usr/lib"); 1580 getFilePaths().push_back("/usr/sfw/lib"); 1581 getFilePaths().push_back("/opt/gcc4/lib"); 1582 getFilePaths().push_back("/opt/gcc4/lib/gcc/i386-pc-solaris2.11/4.2.4"); 1583 1584} 1585 1586Tool &AuroraUX::SelectTool(const Compilation &C, const JobAction &JA, 1587 const ActionList &Inputs) const { 1588 Action::ActionClass Key; 1589 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1590 Key = Action::AnalyzeJobClass; 1591 else 1592 Key = JA.getKind(); 1593 1594 Tool *&T = Tools[Key]; 1595 if (!T) { 1596 switch (Key) { 1597 case Action::AssembleJobClass: 1598 T = new tools::auroraux::Assemble(*this); break; 1599 case Action::LinkJobClass: 1600 T = new tools::auroraux::Link(*this); break; 1601 default: 1602 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1603 } 1604 } 1605 1606 return *T; 1607} 1608 1609 1610/// Linux toolchain (very bare-bones at the moment). 1611 1612enum LinuxDistro { 1613 ArchLinux, 1614 DebianLenny, 1615 DebianSqueeze, 1616 DebianWheezy, 1617 Exherbo, 1618 RHEL4, 1619 RHEL5, 1620 RHEL6, 1621 Fedora13, 1622 Fedora14, 1623 Fedora15, 1624 FedoraRawhide, 1625 OpenSuse11_3, 1626 OpenSuse11_4, 1627 OpenSuse12_1, 1628 UbuntuHardy, 1629 UbuntuIntrepid, 1630 UbuntuJaunty, 1631 UbuntuKarmic, 1632 UbuntuLucid, 1633 UbuntuMaverick, 1634 UbuntuNatty, 1635 UbuntuOneiric, 1636 UnknownDistro 1637}; 1638 1639static bool IsRedhat(enum LinuxDistro Distro) { 1640 return Distro == Fedora13 || Distro == Fedora14 || 1641 Distro == Fedora15 || Distro == FedoraRawhide || 1642 Distro == RHEL4 || Distro == RHEL5 || Distro == RHEL6; 1643} 1644 1645static bool IsOpenSuse(enum LinuxDistro Distro) { 1646 return Distro == OpenSuse11_3 || Distro == OpenSuse11_4 || 1647 Distro == OpenSuse12_1; 1648} 1649 1650static bool IsDebian(enum LinuxDistro Distro) { 1651 return Distro == DebianLenny || Distro == DebianSqueeze || 1652 Distro == DebianWheezy; 1653} 1654 1655static bool IsUbuntu(enum LinuxDistro Distro) { 1656 return Distro == UbuntuHardy || Distro == UbuntuIntrepid || 1657 Distro == UbuntuLucid || Distro == UbuntuMaverick || 1658 Distro == UbuntuJaunty || Distro == UbuntuKarmic || 1659 Distro == UbuntuNatty || Distro == UbuntuOneiric; 1660} 1661 1662static LinuxDistro DetectLinuxDistro(llvm::Triple::ArchType Arch) { 1663 llvm::OwningPtr<llvm::MemoryBuffer> File; 1664 if (!llvm::MemoryBuffer::getFile("/etc/lsb-release", File)) { 1665 StringRef Data = File.get()->getBuffer(); 1666 SmallVector<StringRef, 8> Lines; 1667 Data.split(Lines, "\n"); 1668 for (unsigned int i = 0, s = Lines.size(); i < s; ++ i) { 1669 if (Lines[i] == "DISTRIB_CODENAME=hardy") 1670 return UbuntuHardy; 1671 else if (Lines[i] == "DISTRIB_CODENAME=intrepid") 1672 return UbuntuIntrepid; 1673 else if (Lines[i] == "DISTRIB_CODENAME=jaunty") 1674 return UbuntuJaunty; 1675 else if (Lines[i] == "DISTRIB_CODENAME=karmic") 1676 return UbuntuKarmic; 1677 else if (Lines[i] == "DISTRIB_CODENAME=lucid") 1678 return UbuntuLucid; 1679 else if (Lines[i] == "DISTRIB_CODENAME=maverick") 1680 return UbuntuMaverick; 1681 else if (Lines[i] == "DISTRIB_CODENAME=natty") 1682 return UbuntuNatty; 1683 else if (Lines[i] == "DISTRIB_CODENAME=oneiric") 1684 return UbuntuOneiric; 1685 } 1686 return UnknownDistro; 1687 } 1688 1689 if (!llvm::MemoryBuffer::getFile("/etc/redhat-release", File)) { 1690 StringRef Data = File.get()->getBuffer(); 1691 if (Data.startswith("Fedora release 15")) 1692 return Fedora15; 1693 else if (Data.startswith("Fedora release 14")) 1694 return Fedora14; 1695 else if (Data.startswith("Fedora release 13")) 1696 return Fedora13; 1697 else if (Data.startswith("Fedora release") && 1698 Data.find("Rawhide") != StringRef::npos) 1699 return FedoraRawhide; 1700 else if (Data.startswith("Red Hat Enterprise Linux") && 1701 Data.find("release 6") != StringRef::npos) 1702 return RHEL6; 1703 else if ((Data.startswith("Red Hat Enterprise Linux") || 1704 Data.startswith("CentOS")) && 1705 Data.find("release 5") != StringRef::npos) 1706 return RHEL5; 1707 else if ((Data.startswith("Red Hat Enterprise Linux") || 1708 Data.startswith("CentOS")) && 1709 Data.find("release 4") != StringRef::npos) 1710 return RHEL4; 1711 return UnknownDistro; 1712 } 1713 1714 if (!llvm::MemoryBuffer::getFile("/etc/debian_version", File)) { 1715 StringRef Data = File.get()->getBuffer(); 1716 if (Data[0] == '5') 1717 return DebianLenny; 1718 else if (Data.startswith("squeeze/sid")) 1719 return DebianSqueeze; 1720 else if (Data.startswith("wheezy/sid")) 1721 return DebianWheezy; 1722 return UnknownDistro; 1723 } 1724 1725 if (!llvm::MemoryBuffer::getFile("/etc/SuSE-release", File)) { 1726 StringRef Data = File.get()->getBuffer(); 1727 if (Data.startswith("openSUSE 11.3")) 1728 return OpenSuse11_3; 1729 else if (Data.startswith("openSUSE 11.4")) 1730 return OpenSuse11_4; 1731 else if (Data.startswith("openSUSE 12.1")) 1732 return OpenSuse12_1; 1733 return UnknownDistro; 1734 } 1735 1736 bool Exists; 1737 if (!llvm::sys::fs::exists("/etc/exherbo-release", Exists) && Exists) 1738 return Exherbo; 1739 1740 if (!llvm::sys::fs::exists("/etc/arch-release", Exists) && Exists) 1741 return ArchLinux; 1742 1743 return UnknownDistro; 1744} 1745 1746static void addPathIfExists(Twine Path, ToolChain::path_list &Paths) { 1747 if (llvm::sys::fs::exists(Path)) Paths.push_back(Path.str()); 1748} 1749 1750/// \brief Get our best guess at the multiarch triple for a target. 1751/// 1752/// Debian-based systems are starting to use a multiarch setup where they use 1753/// a target-triple directory in the library and header search paths. 1754/// Unfortunately, this triple does not align with the vanilla target triple, 1755/// so we provide a rough mapping here. 1756static std::string getMultiarchTriple(const llvm::Triple TargetTriple, 1757 StringRef SysRoot) { 1758 // For most architectures, just use whatever we have rather than trying to be 1759 // clever. 1760 switch (TargetTriple.getArch()) { 1761 default: 1762 return TargetTriple.str(); 1763 1764 // We use the existence of '/lib/<triple>' as a directory to detect some 1765 // common linux triples that don't quite match the Clang triple for both 1766 // 32-bit and 64-bit targets. Multiarch fixes its install triples to these 1767 // regardless of what the actual target triple is. 1768 case llvm::Triple::x86: 1769 if (llvm::sys::fs::exists(SysRoot + "/lib/i386-linux-gnu")) 1770 return "i386-linux-gnu"; 1771 return TargetTriple.str(); 1772 case llvm::Triple::x86_64: 1773 if (llvm::sys::fs::exists(SysRoot + "/lib/x86_64-linux-gnu")) 1774 return "x86_64-linux-gnu"; 1775 return TargetTriple.str(); 1776 } 1777} 1778 1779Linux::Linux(const HostInfo &Host, const llvm::Triple &Triple) 1780 : Generic_ELF(Host, Triple) { 1781 llvm::Triple::ArchType Arch = 1782 llvm::Triple(getDriver().DefaultHostTriple).getArch(); 1783 const std::string &SysRoot = getDriver().SysRoot; 1784 1785 // OpenSuse stores the linker with the compiler, add that to the search 1786 // path. 1787 ToolChain::path_list &PPaths = getProgramPaths(); 1788 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" + 1789 GCCInstallation.getTriple() + "/bin").str()); 1790 1791 Linker = GetProgramPath("ld"); 1792 1793 LinuxDistro Distro = DetectLinuxDistro(Arch); 1794 1795 if (IsOpenSuse(Distro) || IsUbuntu(Distro)) { 1796 ExtraOpts.push_back("-z"); 1797 ExtraOpts.push_back("relro"); 1798 } 1799 1800 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb) 1801 ExtraOpts.push_back("-X"); 1802 1803 if (IsRedhat(Distro) || IsOpenSuse(Distro) || Distro == UbuntuMaverick || 1804 Distro == UbuntuNatty || Distro == UbuntuOneiric) 1805 ExtraOpts.push_back("--hash-style=gnu"); 1806 1807 if (IsDebian(Distro) || IsOpenSuse(Distro) || Distro == UbuntuLucid || 1808 Distro == UbuntuJaunty || Distro == UbuntuKarmic) 1809 ExtraOpts.push_back("--hash-style=both"); 1810 1811 if (IsRedhat(Distro)) 1812 ExtraOpts.push_back("--no-add-needed"); 1813 1814 if (Distro == DebianSqueeze || Distro == DebianWheezy || 1815 IsOpenSuse(Distro) || 1816 (IsRedhat(Distro) && Distro != RHEL4 && Distro != RHEL5) || 1817 Distro == UbuntuLucid || 1818 Distro == UbuntuMaverick || Distro == UbuntuKarmic || 1819 Distro == UbuntuNatty || Distro == UbuntuOneiric) 1820 ExtraOpts.push_back("--build-id"); 1821 1822 if (IsOpenSuse(Distro)) 1823 ExtraOpts.push_back("--enable-new-dtags"); 1824 1825 // The selection of paths to try here is designed to match the patterns which 1826 // the GCC driver itself uses, as this is part of the GCC-compatible driver. 1827 // This was determined by running GCC in a fake filesystem, creating all 1828 // possible permutations of these directories, and seeing which ones it added 1829 // to the link paths. 1830 path_list &Paths = getFilePaths(); 1831 const bool Is32Bits = (getArch() == llvm::Triple::x86 || 1832 getArch() == llvm::Triple::ppc); 1833 1834 const std::string Suffix32 = Arch == llvm::Triple::x86_64 ? "/32" : ""; 1835 const std::string Suffix64 = Arch == llvm::Triple::x86_64 ? "" : "/64"; 1836 const std::string Suffix = Is32Bits ? Suffix32 : Suffix64; 1837 const std::string Multilib = Is32Bits ? "lib32" : "lib64"; 1838 const std::string MultiarchTriple = getMultiarchTriple(Triple, SysRoot); 1839 1840 // Add the multilib suffixed paths where they are available. 1841 if (GCCInstallation.isValid()) { 1842 const std::string &LibPath = GCCInstallation.getParentLibPath(); 1843 const std::string &GccTriple = GCCInstallation.getTriple(); 1844 addPathIfExists(GCCInstallation.getInstallPath() + Suffix, Paths); 1845 addPathIfExists(LibPath + "/../" + GccTriple + "/lib/../" + Multilib, 1846 Paths); 1847 addPathIfExists(LibPath + "/" + MultiarchTriple, Paths); 1848 addPathIfExists(LibPath + "/../" + Multilib, Paths); 1849 } 1850 addPathIfExists(SysRoot + "/lib/" + MultiarchTriple, Paths); 1851 addPathIfExists(SysRoot + "/lib/../" + Multilib, Paths); 1852 addPathIfExists(SysRoot + "/usr/lib/" + MultiarchTriple, Paths); 1853 addPathIfExists(SysRoot + "/usr/lib/../" + Multilib, Paths); 1854 1855 // Try walking via the GCC triple path in case of multiarch GCC 1856 // installations with strange symlinks. 1857 if (GCCInstallation.isValid()) 1858 addPathIfExists(SysRoot + "/usr/lib/" + GCCInstallation.getTriple() + 1859 "/../../" + Multilib, Paths); 1860 1861 // Add the non-multilib suffixed paths (if potentially different). 1862 if (GCCInstallation.isValid()) { 1863 const std::string &LibPath = GCCInstallation.getParentLibPath(); 1864 const std::string &GccTriple = GCCInstallation.getTriple(); 1865 if (!Suffix.empty()) 1866 addPathIfExists(GCCInstallation.getInstallPath(), Paths); 1867 addPathIfExists(LibPath + "/../" + GccTriple + "/lib", Paths); 1868 addPathIfExists(LibPath + "/" + MultiarchTriple, Paths); 1869 addPathIfExists(LibPath, Paths); 1870 } 1871 addPathIfExists(SysRoot + "/lib/" + MultiarchTriple, Paths); 1872 addPathIfExists(SysRoot + "/lib", Paths); 1873 addPathIfExists(SysRoot + "/usr/lib/" + MultiarchTriple, Paths); 1874 addPathIfExists(SysRoot + "/usr/lib", Paths); 1875} 1876 1877bool Linux::HasNativeLLVMSupport() const { 1878 return true; 1879} 1880 1881Tool &Linux::SelectTool(const Compilation &C, const JobAction &JA, 1882 const ActionList &Inputs) const { 1883 Action::ActionClass Key; 1884 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1885 Key = Action::AnalyzeJobClass; 1886 else 1887 Key = JA.getKind(); 1888 1889 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 1890 options::OPT_no_integrated_as, 1891 IsIntegratedAssemblerDefault()); 1892 1893 Tool *&T = Tools[Key]; 1894 if (!T) { 1895 switch (Key) { 1896 case Action::AssembleJobClass: 1897 if (UseIntegratedAs) 1898 T = new tools::ClangAs(*this); 1899 else 1900 T = new tools::linuxtools::Assemble(*this); 1901 break; 1902 case Action::LinkJobClass: 1903 T = new tools::linuxtools::Link(*this); break; 1904 default: 1905 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1906 } 1907 } 1908 1909 return *T; 1910} 1911 1912void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs, 1913 ArgStringList &CC1Args) const { 1914 const Driver &D = getDriver(); 1915 1916 if (DriverArgs.hasArg(options::OPT_nostdinc)) 1917 return; 1918 1919 if (!DriverArgs.hasArg(options::OPT_nostdlibinc)) 1920 addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/local/include"); 1921 1922 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { 1923 // Ignore the sysroot, we *always* look for clang headers relative to 1924 // supplied path. 1925 llvm::sys::Path P(D.ResourceDir); 1926 P.appendComponent("include"); 1927 CC1Args.push_back("-internal-nosysroot-isystem"); 1928 CC1Args.push_back(DriverArgs.MakeArgString(P.str())); 1929 } 1930 1931 if (DriverArgs.hasArg(options::OPT_nostdlibinc)) 1932 return; 1933 1934 // Check for configure-time C include directories. 1935 StringRef CIncludeDirs(C_INCLUDE_DIRS); 1936 if (CIncludeDirs != "") { 1937 SmallVector<StringRef, 5> dirs; 1938 CIncludeDirs.split(dirs, ":"); 1939 for (SmallVectorImpl<StringRef>::iterator I = dirs.begin(), E = dirs.end(); 1940 I != E; ++I) { 1941 StringRef Prefix = llvm::sys::path::is_absolute(*I) ? D.SysRoot : ""; 1942 addExternCSystemInclude(DriverArgs, CC1Args, Prefix + *I); 1943 } 1944 return; 1945 } 1946 1947 // Lacking those, try to detect the correct set of system includes for the 1948 // target triple. 1949 1950 // Implement generic Debian multiarch support. 1951 const StringRef X86_64MultiarchIncludeDirs[] = { 1952 "/usr/include/x86_64-linux-gnu", 1953 1954 // FIXME: These are older forms of multiarch. It's not clear that they're 1955 // in use in any released version of Debian, so we should consider 1956 // removing them. 1957 "/usr/include/i686-linux-gnu/64", 1958 "/usr/include/i486-linux-gnu/64" 1959 }; 1960 const StringRef X86MultiarchIncludeDirs[] = { 1961 "/usr/include/i386-linux-gnu", 1962 1963 // FIXME: These are older forms of multiarch. It's not clear that they're 1964 // in use in any released version of Debian, so we should consider 1965 // removing them. 1966 "/usr/include/x86_64-linux-gnu/32", 1967 "/usr/include/i686-linux-gnu", 1968 "/usr/include/i486-linux-gnu" 1969 }; 1970 const StringRef ARMMultiarchIncludeDirs[] = { 1971 "/usr/include/arm-linux-gnueabi" 1972 }; 1973 ArrayRef<StringRef> MultiarchIncludeDirs; 1974 if (getTriple().getArch() == llvm::Triple::x86_64) { 1975 MultiarchIncludeDirs = X86_64MultiarchIncludeDirs; 1976 } else if (getTriple().getArch() == llvm::Triple::x86) { 1977 MultiarchIncludeDirs = X86MultiarchIncludeDirs; 1978 } else if (getTriple().getArch() == llvm::Triple::arm) { 1979 MultiarchIncludeDirs = ARMMultiarchIncludeDirs; 1980 } 1981 for (ArrayRef<StringRef>::iterator I = MultiarchIncludeDirs.begin(), 1982 E = MultiarchIncludeDirs.end(); 1983 I != E; ++I) { 1984 if (llvm::sys::fs::exists(*I)) { 1985 addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + *I); 1986 break; 1987 } 1988 } 1989 1990 if (getTriple().getOS() == llvm::Triple::RTEMS) 1991 return; 1992 1993 addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/include"); 1994} 1995 1996static bool addLibStdCXXIncludePaths(Twine Base, Twine TargetArchDir, 1997 const ArgList &DriverArgs, 1998 ArgStringList &CC1Args) { 1999 if (!llvm::sys::fs::exists(Base)) 2000 return false; 2001 addSystemInclude(DriverArgs, CC1Args, Base); 2002 addSystemInclude(DriverArgs, CC1Args, Base + "/" + TargetArchDir); 2003 addSystemInclude(DriverArgs, CC1Args, Base + "/backward"); 2004 return true; 2005} 2006 2007void Linux::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, 2008 ArgStringList &CC1Args) const { 2009 if (DriverArgs.hasArg(options::OPT_nostdlibinc) || 2010 DriverArgs.hasArg(options::OPT_nostdincxx)) 2011 return; 2012 2013 const llvm::Triple &TargetTriple = getTriple(); 2014 2015 StringRef CxxIncludeRoot(CXX_INCLUDE_ROOT); 2016 if (!CxxIncludeRoot.empty()) { 2017 StringRef CxxIncludeArch(CXX_INCLUDE_ARCH); 2018 if (CxxIncludeArch.empty()) 2019 CxxIncludeArch = TargetTriple.str(); 2020 2021 addLibStdCXXIncludePaths( 2022 CxxIncludeRoot, 2023 CxxIncludeArch + (isTarget64Bit() ? CXX_INCLUDE_64BIT_DIR 2024 : CXX_INCLUDE_32BIT_DIR), 2025 DriverArgs, CC1Args); 2026 return; 2027 } 2028 2029 // Check if the target architecture specific dirs need a suffix. Note that we 2030 // only support the suffix-based bi-arch-like header scheme for host/target 2031 // mismatches of just bit width. 2032 llvm::Triple::ArchType HostArch = 2033 llvm::Triple(getDriver().DefaultHostTriple).getArch(); 2034 llvm::Triple::ArchType TargetArch = TargetTriple.getArch(); 2035 StringRef Suffix; 2036 if ((HostArch == llvm::Triple::x86 && TargetArch == llvm::Triple::x86_64) || 2037 (HostArch == llvm::Triple::ppc && TargetArch == llvm::Triple::ppc64)) 2038 Suffix = "/64"; 2039 if ((HostArch == llvm::Triple::x86_64 && TargetArch == llvm::Triple::x86) || 2040 (HostArch == llvm::Triple::ppc64 && TargetArch == llvm::Triple::ppc)) 2041 Suffix = "/32"; 2042 2043 // By default, look for the C++ headers in an include directory adjacent to 2044 // the lib directory of the GCC installation. Note that this is expect to be 2045 // equivalent to '/usr/include/c++/X.Y' in almost all cases. 2046 StringRef LibDir = GCCInstallation.getParentLibPath(); 2047 StringRef InstallDir = GCCInstallation.getInstallPath(); 2048 StringRef Version = GCCInstallation.getVersion(); 2049 if (!addLibStdCXXIncludePaths(LibDir + "/../include/c++/" + Version, 2050 GCCInstallation.getTriple() + Suffix, 2051 DriverArgs, CC1Args)) { 2052 // Gentoo is weird and places its headers inside the GCC install, so if the 2053 // first attempt to find the headers fails, try this pattern. 2054 addLibStdCXXIncludePaths(InstallDir + "/include/g++-v4", 2055 GCCInstallation.getTriple() + Suffix, 2056 DriverArgs, CC1Args); 2057 } 2058} 2059 2060/// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly. 2061 2062DragonFly::DragonFly(const HostInfo &Host, const llvm::Triple& Triple) 2063 : Generic_ELF(Host, Triple) { 2064 2065 // Path mangling to find libexec 2066 getProgramPaths().push_back(getDriver().getInstalledDir()); 2067 if (getDriver().getInstalledDir() != getDriver().Dir) 2068 getProgramPaths().push_back(getDriver().Dir); 2069 2070 getFilePaths().push_back(getDriver().Dir + "/../lib"); 2071 getFilePaths().push_back("/usr/lib"); 2072 getFilePaths().push_back("/usr/lib/gcc41"); 2073} 2074 2075Tool &DragonFly::SelectTool(const Compilation &C, const JobAction &JA, 2076 const ActionList &Inputs) const { 2077 Action::ActionClass Key; 2078 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 2079 Key = Action::AnalyzeJobClass; 2080 else 2081 Key = JA.getKind(); 2082 2083 Tool *&T = Tools[Key]; 2084 if (!T) { 2085 switch (Key) { 2086 case Action::AssembleJobClass: 2087 T = new tools::dragonfly::Assemble(*this); break; 2088 case Action::LinkJobClass: 2089 T = new tools::dragonfly::Link(*this); break; 2090 default: 2091 T = &Generic_GCC::SelectTool(C, JA, Inputs); 2092 } 2093 } 2094 2095 return *T; 2096} 2097 2098Windows::Windows(const HostInfo &Host, const llvm::Triple& Triple) 2099 : ToolChain(Host, Triple) { 2100} 2101 2102Tool &Windows::SelectTool(const Compilation &C, const JobAction &JA, 2103 const ActionList &Inputs) const { 2104 Action::ActionClass Key; 2105 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 2106 Key = Action::AnalyzeJobClass; 2107 else 2108 Key = JA.getKind(); 2109 2110 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 2111 options::OPT_no_integrated_as, 2112 IsIntegratedAssemblerDefault()); 2113 2114 Tool *&T = Tools[Key]; 2115 if (!T) { 2116 switch (Key) { 2117 case Action::InputClass: 2118 case Action::BindArchClass: 2119 case Action::LipoJobClass: 2120 case Action::DsymutilJobClass: 2121 case Action::VerifyJobClass: 2122 llvm_unreachable("Invalid tool kind."); 2123 case Action::PreprocessJobClass: 2124 case Action::PrecompileJobClass: 2125 case Action::AnalyzeJobClass: 2126 case Action::CompileJobClass: 2127 T = new tools::Clang(*this); break; 2128 case Action::AssembleJobClass: 2129 if (!UseIntegratedAs && getTriple().getEnvironment() == llvm::Triple::MachO) 2130 T = new tools::darwin::Assemble(*this); 2131 else 2132 T = new tools::ClangAs(*this); 2133 break; 2134 case Action::LinkJobClass: 2135 T = new tools::visualstudio::Link(*this); break; 2136 } 2137 } 2138 2139 return *T; 2140} 2141 2142bool Windows::IsIntegratedAssemblerDefault() const { 2143 return true; 2144} 2145 2146bool Windows::IsUnwindTablesDefault() const { 2147 // FIXME: Gross; we should probably have some separate target 2148 // definition, possibly even reusing the one in clang. 2149 return getArchName() == "x86_64"; 2150} 2151 2152const char *Windows::GetDefaultRelocationModel() const { 2153 return "static"; 2154} 2155 2156const char *Windows::GetForcedPicModel() const { 2157 if (getArchName() == "x86_64") 2158 return "pic"; 2159 return 0; 2160} 2161 2162// FIXME: This probably should goto to some platform utils place. 2163#ifdef _MSC_VER 2164 2165/// \brief Read registry string. 2166/// This also supports a means to look for high-versioned keys by use 2167/// of a $VERSION placeholder in the key path. 2168/// $VERSION in the key path is a placeholder for the version number, 2169/// causing the highest value path to be searched for and used. 2170/// I.e. "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\$VERSION". 2171/// There can be additional characters in the component. Only the numberic 2172/// characters are compared. 2173static bool getSystemRegistryString(const char *keyPath, const char *valueName, 2174 char *value, size_t maxLength) { 2175 HKEY hRootKey = NULL; 2176 HKEY hKey = NULL; 2177 const char* subKey = NULL; 2178 DWORD valueType; 2179 DWORD valueSize = maxLength - 1; 2180 long lResult; 2181 bool returnValue = false; 2182 2183 if (strncmp(keyPath, "HKEY_CLASSES_ROOT\\", 18) == 0) { 2184 hRootKey = HKEY_CLASSES_ROOT; 2185 subKey = keyPath + 18; 2186 } else if (strncmp(keyPath, "HKEY_USERS\\", 11) == 0) { 2187 hRootKey = HKEY_USERS; 2188 subKey = keyPath + 11; 2189 } else if (strncmp(keyPath, "HKEY_LOCAL_MACHINE\\", 19) == 0) { 2190 hRootKey = HKEY_LOCAL_MACHINE; 2191 subKey = keyPath + 19; 2192 } else if (strncmp(keyPath, "HKEY_CURRENT_USER\\", 18) == 0) { 2193 hRootKey = HKEY_CURRENT_USER; 2194 subKey = keyPath + 18; 2195 } else { 2196 return false; 2197 } 2198 2199 const char *placeHolder = strstr(subKey, "$VERSION"); 2200 char bestName[256]; 2201 bestName[0] = '\0'; 2202 // If we have a $VERSION placeholder, do the highest-version search. 2203 if (placeHolder) { 2204 const char *keyEnd = placeHolder - 1; 2205 const char *nextKey = placeHolder; 2206 // Find end of previous key. 2207 while ((keyEnd > subKey) && (*keyEnd != '\\')) 2208 keyEnd--; 2209 // Find end of key containing $VERSION. 2210 while (*nextKey && (*nextKey != '\\')) 2211 nextKey++; 2212 size_t partialKeyLength = keyEnd - subKey; 2213 char partialKey[256]; 2214 if (partialKeyLength > sizeof(partialKey)) 2215 partialKeyLength = sizeof(partialKey); 2216 strncpy(partialKey, subKey, partialKeyLength); 2217 partialKey[partialKeyLength] = '\0'; 2218 HKEY hTopKey = NULL; 2219 lResult = RegOpenKeyEx(hRootKey, partialKey, 0, KEY_READ, &hTopKey); 2220 if (lResult == ERROR_SUCCESS) { 2221 char keyName[256]; 2222 int bestIndex = -1; 2223 double bestValue = 0.0; 2224 DWORD index, size = sizeof(keyName) - 1; 2225 for (index = 0; RegEnumKeyEx(hTopKey, index, keyName, &size, NULL, 2226 NULL, NULL, NULL) == ERROR_SUCCESS; index++) { 2227 const char *sp = keyName; 2228 while (*sp && !isdigit(*sp)) 2229 sp++; 2230 if (!*sp) 2231 continue; 2232 const char *ep = sp + 1; 2233 while (*ep && (isdigit(*ep) || (*ep == '.'))) 2234 ep++; 2235 char numBuf[32]; 2236 strncpy(numBuf, sp, sizeof(numBuf) - 1); 2237 numBuf[sizeof(numBuf) - 1] = '\0'; 2238 double value = strtod(numBuf, NULL); 2239 if (value > bestValue) { 2240 bestIndex = (int)index; 2241 bestValue = value; 2242 strcpy(bestName, keyName); 2243 } 2244 size = sizeof(keyName) - 1; 2245 } 2246 // If we found the highest versioned key, open the key and get the value. 2247 if (bestIndex != -1) { 2248 // Append rest of key. 2249 strncat(bestName, nextKey, sizeof(bestName) - 1); 2250 bestName[sizeof(bestName) - 1] = '\0'; 2251 // Open the chosen key path remainder. 2252 lResult = RegOpenKeyEx(hTopKey, bestName, 0, KEY_READ, &hKey); 2253 if (lResult == ERROR_SUCCESS) { 2254 lResult = RegQueryValueEx(hKey, valueName, NULL, &valueType, 2255 (LPBYTE)value, &valueSize); 2256 if (lResult == ERROR_SUCCESS) 2257 returnValue = true; 2258 RegCloseKey(hKey); 2259 } 2260 } 2261 RegCloseKey(hTopKey); 2262 } 2263 } else { 2264 lResult = RegOpenKeyEx(hRootKey, subKey, 0, KEY_READ, &hKey); 2265 if (lResult == ERROR_SUCCESS) { 2266 lResult = RegQueryValueEx(hKey, valueName, NULL, &valueType, 2267 (LPBYTE)value, &valueSize); 2268 if (lResult == ERROR_SUCCESS) 2269 returnValue = true; 2270 RegCloseKey(hKey); 2271 } 2272 } 2273 return returnValue; 2274} 2275 2276/// \brief Get Windows SDK installation directory. 2277static bool getWindowsSDKDir(std::string &path) { 2278 char windowsSDKInstallDir[256]; 2279 // Try the Windows registry. 2280 bool hasSDKDir = getSystemRegistryString( 2281 "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\$VERSION", 2282 "InstallationFolder", 2283 windowsSDKInstallDir, 2284 sizeof(windowsSDKInstallDir) - 1); 2285 // If we have both vc80 and vc90, pick version we were compiled with. 2286 if (hasSDKDir && windowsSDKInstallDir[0]) { 2287 path = windowsSDKInstallDir; 2288 return true; 2289 } 2290 return false; 2291} 2292 2293 // Get Visual Studio installation directory. 2294static bool getVisualStudioDir(std::string &path) { 2295 // First check the environment variables that vsvars32.bat sets. 2296 const char* vcinstalldir = getenv("VCINSTALLDIR"); 2297 if (vcinstalldir) { 2298 char *p = const_cast<char *>(strstr(vcinstalldir, "\\VC")); 2299 if (p) 2300 *p = '\0'; 2301 path = vcinstalldir; 2302 return true; 2303 } 2304 2305 char vsIDEInstallDir[256]; 2306 char vsExpressIDEInstallDir[256]; 2307 // Then try the windows registry. 2308 bool hasVCDir = getSystemRegistryString( 2309 "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\$VERSION", 2310 "InstallDir", vsIDEInstallDir, sizeof(vsIDEInstallDir) - 1); 2311 bool hasVCExpressDir = getSystemRegistryString( 2312 "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VCExpress\\$VERSION", 2313 "InstallDir", vsExpressIDEInstallDir, sizeof(vsExpressIDEInstallDir) - 1); 2314 // If we have both vc80 and vc90, pick version we were compiled with. 2315 if (hasVCDir && vsIDEInstallDir[0]) { 2316 char *p = (char*)strstr(vsIDEInstallDir, "\\Common7\\IDE"); 2317 if (p) 2318 *p = '\0'; 2319 path = vsIDEInstallDir; 2320 return true; 2321 } 2322 2323 if (hasVCExpressDir && vsExpressIDEInstallDir[0]) { 2324 char *p = (char*)strstr(vsExpressIDEInstallDir, "\\Common7\\IDE"); 2325 if (p) 2326 *p = '\0'; 2327 path = vsExpressIDEInstallDir; 2328 return true; 2329 } 2330 2331 // Try the environment. 2332 const char *vs100comntools = getenv("VS100COMNTOOLS"); 2333 const char *vs90comntools = getenv("VS90COMNTOOLS"); 2334 const char *vs80comntools = getenv("VS80COMNTOOLS"); 2335 const char *vscomntools = NULL; 2336 2337 // Try to find the version that we were compiled with 2338 if(false) {} 2339 #if (_MSC_VER >= 1600) // VC100 2340 else if(vs100comntools) { 2341 vscomntools = vs100comntools; 2342 } 2343 #elif (_MSC_VER == 1500) // VC80 2344 else if(vs90comntools) { 2345 vscomntools = vs90comntools; 2346 } 2347 #elif (_MSC_VER == 1400) // VC80 2348 else if(vs80comntools) { 2349 vscomntools = vs80comntools; 2350 } 2351 #endif 2352 // Otherwise find any version we can 2353 else if (vs100comntools) 2354 vscomntools = vs100comntools; 2355 else if (vs90comntools) 2356 vscomntools = vs90comntools; 2357 else if (vs80comntools) 2358 vscomntools = vs80comntools; 2359 2360 if (vscomntools && *vscomntools) { 2361 const char *p = strstr(vscomntools, "\\Common7\\Tools"); 2362 path = p ? std::string(vscomntools, p) : vscomntools; 2363 return true; 2364 } 2365 return false; 2366} 2367 2368#endif // _MSC_VER 2369 2370void Windows::AddClangSystemIncludeArgs(const ArgList &DriverArgs, 2371 ArgStringList &CC1Args) const { 2372 if (DriverArgs.hasArg(options::OPT_nostdinc)) 2373 return; 2374 2375 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { 2376 // Ignore the sysroot, we *always* look for clang headers relative to 2377 // supplied path. 2378 llvm::sys::Path P(getDriver().ResourceDir); 2379 P.appendComponent("include"); 2380 CC1Args.push_back("-internal-nosysroot-isystem"); 2381 CC1Args.push_back(DriverArgs.MakeArgString(P.str())); 2382 } 2383 2384 if (DriverArgs.hasArg(options::OPT_nostdlibinc)) 2385 return; 2386 2387 std::string VSDir; 2388 std::string WindowsSDKDir; 2389 2390#ifdef _MSC_VER 2391 // When built with access to the proper Windows APIs, try to actually find 2392 // the correct include paths first. 2393 if (getVisualStudioDir(VSDir)) { 2394 addSystemInclude(DriverArgs, CC1Args, VSDir + "\\VC\\include"); 2395 if (getWindowsSDKDir(WindowsSDKDir)) 2396 addSystemInclude(DriverArgs, CC1Args, WindowsSDKDir + "\\include"); 2397 else 2398 addSystemInclude(DriverArgs, CC1Args, 2399 VSDir + "\\VC\\PlatformSDK\\Include"); 2400 return; 2401 } 2402#endif // _MSC_VER 2403 2404 // As a fallback, select default install paths. 2405 const StringRef Paths[] = { 2406 "C:/Program Files/Microsoft Visual Studio 10.0/VC/include", 2407 "C:/Program Files/Microsoft Visual Studio 9.0/VC/include", 2408 "C:/Program Files/Microsoft Visual Studio 9.0/VC/PlatformSDK/Include", 2409 "C:/Program Files/Microsoft Visual Studio 8/VC/include", 2410 "C:/Program Files/Microsoft Visual Studio 8/VC/PlatformSDK/Include" 2411 }; 2412 addSystemIncludes(DriverArgs, CC1Args, Paths); 2413} 2414 2415void Windows::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, 2416 ArgStringList &CC1Args) const { 2417 // FIXME: There should probably be logic here to find libc++ on Windows. 2418} 2419