ToolChains.cpp revision 239462
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#include "clang/Driver/Arg.h" 13#include "clang/Driver/ArgList.h" 14#include "clang/Driver/Compilation.h" 15#include "clang/Driver/Driver.h" 16#include "clang/Driver/DriverDiagnostic.h" 17#include "clang/Driver/OptTable.h" 18#include "clang/Driver/Option.h" 19#include "clang/Driver/Options.h" 20#include "clang/Basic/ObjCRuntime.h" 21#include "clang/Basic/Version.h" 22 23#include "llvm/ADT/SmallString.h" 24#include "llvm/ADT/StringExtras.h" 25#include "llvm/ADT/StringSwitch.h" 26#include "llvm/ADT/STLExtras.h" 27#include "llvm/Support/ErrorHandling.h" 28#include "llvm/Support/FileSystem.h" 29#include "llvm/Support/MemoryBuffer.h" 30#include "llvm/Support/raw_ostream.h" 31#include "llvm/Support/Path.h" 32#include "llvm/Support/system_error.h" 33 34#include <cstdlib> // ::getenv 35 36#include "clang/Config/config.h" // for GCC_INSTALL_PREFIX 37 38using namespace clang::driver; 39using namespace clang::driver::toolchains; 40using namespace clang; 41 42/// Darwin - Darwin tool chain for i386 and x86_64. 43 44Darwin::Darwin(const Driver &D, const llvm::Triple& Triple) 45 : ToolChain(D, Triple), TargetInitialized(false) 46{ 47 // Compute the initial Darwin version from the triple 48 unsigned Major, Minor, Micro; 49 if (!Triple.getMacOSXVersion(Major, Minor, Micro)) 50 getDriver().Diag(diag::err_drv_invalid_darwin_version) << 51 Triple.getOSName(); 52 llvm::raw_string_ostream(MacosxVersionMin) 53 << Major << '.' << Minor << '.' << Micro; 54 55 // FIXME: DarwinVersion is only used to find GCC's libexec directory. 56 // It should be removed when we stop supporting that. 57 DarwinVersion[0] = Minor + 4; 58 DarwinVersion[1] = Micro; 59 DarwinVersion[2] = 0; 60 61 // Compute the initial iOS version from the triple 62 Triple.getiOSVersion(Major, Minor, Micro); 63 llvm::raw_string_ostream(iOSVersionMin) 64 << Major << '.' << Minor << '.' << Micro; 65} 66 67types::ID Darwin::LookupTypeForExtension(const char *Ext) const { 68 types::ID Ty = types::lookupTypeForExtension(Ext); 69 70 // Darwin always preprocesses assembly files (unless -x is used explicitly). 71 if (Ty == types::TY_PP_Asm) 72 return types::TY_Asm; 73 74 return Ty; 75} 76 77bool Darwin::HasNativeLLVMSupport() const { 78 return true; 79} 80 81/// Darwin provides an ARC runtime starting in MacOS X 10.7 and iOS 5.0. 82ObjCRuntime Darwin::getDefaultObjCRuntime(bool isNonFragile) const { 83 if (isTargetIPhoneOS()) { 84 return ObjCRuntime(ObjCRuntime::iOS, TargetVersion); 85 } else if (TargetSimulatorVersionFromDefines != VersionTuple()) { 86 return ObjCRuntime(ObjCRuntime::iOS, TargetSimulatorVersionFromDefines); 87 } else { 88 if (isNonFragile) { 89 return ObjCRuntime(ObjCRuntime::MacOSX, TargetVersion); 90 } else { 91 return ObjCRuntime(ObjCRuntime::FragileMacOSX, TargetVersion); 92 } 93 } 94} 95 96/// Darwin provides a blocks runtime starting in MacOS X 10.6 and iOS 3.2. 97bool Darwin::hasBlocksRuntime() const { 98 if (isTargetIPhoneOS()) 99 return !isIPhoneOSVersionLT(3, 2); 100 else 101 return !isMacosxVersionLT(10, 6); 102} 103 104static const char *GetArmArchForMArch(StringRef Value) { 105 return llvm::StringSwitch<const char*>(Value) 106 .Case("armv6k", "armv6") 107 .Case("armv5tej", "armv5") 108 .Case("xscale", "xscale") 109 .Case("armv4t", "armv4t") 110 .Case("armv7", "armv7") 111 .Cases("armv7a", "armv7-a", "armv7") 112 .Cases("armv7r", "armv7-r", "armv7") 113 .Cases("armv7m", "armv7-m", "armv7") 114 .Default(0); 115} 116 117static const char *GetArmArchForMCpu(StringRef Value) { 118 return llvm::StringSwitch<const char *>(Value) 119 .Cases("arm9e", "arm946e-s", "arm966e-s", "arm968e-s", "arm926ej-s","armv5") 120 .Cases("arm10e", "arm10tdmi", "armv5") 121 .Cases("arm1020t", "arm1020e", "arm1022e", "arm1026ej-s", "armv5") 122 .Case("xscale", "xscale") 123 .Cases("arm1136j-s", "arm1136jf-s", "arm1176jz-s", 124 "arm1176jzf-s", "cortex-m0", "armv6") 125 .Cases("cortex-a8", "cortex-r4", "cortex-m3", "cortex-a9", "armv7") 126 .Default(0); 127} 128 129StringRef Darwin::getDarwinArchName(const ArgList &Args) const { 130 switch (getTriple().getArch()) { 131 default: 132 return getArchName(); 133 134 case llvm::Triple::thumb: 135 case llvm::Triple::arm: { 136 if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) 137 if (const char *Arch = GetArmArchForMArch(A->getValue(Args))) 138 return Arch; 139 140 if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) 141 if (const char *Arch = GetArmArchForMCpu(A->getValue(Args))) 142 return Arch; 143 144 return "arm"; 145 } 146 } 147} 148 149Darwin::~Darwin() { 150 // Free tool implementations. 151 for (llvm::DenseMap<unsigned, Tool*>::iterator 152 it = Tools.begin(), ie = Tools.end(); it != ie; ++it) 153 delete it->second; 154} 155 156std::string Darwin::ComputeEffectiveClangTriple(const ArgList &Args, 157 types::ID InputType) const { 158 llvm::Triple Triple(ComputeLLVMTriple(Args, InputType)); 159 160 // If the target isn't initialized (e.g., an unknown Darwin platform, return 161 // the default triple). 162 if (!isTargetInitialized()) 163 return Triple.getTriple(); 164 165 SmallString<16> Str; 166 Str += isTargetIPhoneOS() ? "ios" : "macosx"; 167 Str += getTargetVersion().getAsString(); 168 Triple.setOSName(Str); 169 170 return Triple.getTriple(); 171} 172 173void Generic_ELF::anchor() {} 174 175Tool &Darwin::SelectTool(const Compilation &C, const JobAction &JA, 176 const ActionList &Inputs) const { 177 Action::ActionClass Key = JA.getKind(); 178 bool useClang = false; 179 180 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) { 181 useClang = true; 182 // Fallback to llvm-gcc for i386 kext compiles, we don't support that ABI. 183 if (!getDriver().shouldForceClangUse() && 184 Inputs.size() == 1 && 185 types::isCXX(Inputs[0]->getType()) && 186 getTriple().isOSDarwin() && 187 getTriple().getArch() == llvm::Triple::x86 && 188 (C.getArgs().getLastArg(options::OPT_fapple_kext) || 189 C.getArgs().getLastArg(options::OPT_mkernel))) 190 useClang = false; 191 } 192 193 // FIXME: This seems like a hacky way to choose clang frontend. 194 if (useClang) 195 Key = Action::AnalyzeJobClass; 196 197 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 198 options::OPT_no_integrated_as, 199 IsIntegratedAssemblerDefault()); 200 201 Tool *&T = Tools[Key]; 202 if (!T) { 203 switch (Key) { 204 case Action::InputClass: 205 case Action::BindArchClass: 206 llvm_unreachable("Invalid tool kind."); 207 case Action::PreprocessJobClass: 208 T = new tools::darwin::Preprocess(*this); break; 209 case Action::AnalyzeJobClass: 210 case Action::MigrateJobClass: 211 T = new tools::Clang(*this); break; 212 case Action::PrecompileJobClass: 213 case Action::CompileJobClass: 214 T = new tools::darwin::Compile(*this); break; 215 case Action::AssembleJobClass: { 216 if (UseIntegratedAs) 217 T = new tools::ClangAs(*this); 218 else 219 T = new tools::darwin::Assemble(*this); 220 break; 221 } 222 case Action::LinkJobClass: 223 T = new tools::darwin::Link(*this); break; 224 case Action::LipoJobClass: 225 T = new tools::darwin::Lipo(*this); break; 226 case Action::DsymutilJobClass: 227 T = new tools::darwin::Dsymutil(*this); break; 228 case Action::VerifyJobClass: 229 T = new tools::darwin::VerifyDebug(*this); break; 230 } 231 } 232 233 return *T; 234} 235 236 237DarwinClang::DarwinClang(const Driver &D, const llvm::Triple& Triple) 238 : Darwin(D, Triple) 239{ 240 getProgramPaths().push_back(getDriver().getInstalledDir()); 241 if (getDriver().getInstalledDir() != getDriver().Dir) 242 getProgramPaths().push_back(getDriver().Dir); 243 244 // We expect 'as', 'ld', etc. to be adjacent to our install dir. 245 getProgramPaths().push_back(getDriver().getInstalledDir()); 246 if (getDriver().getInstalledDir() != getDriver().Dir) 247 getProgramPaths().push_back(getDriver().Dir); 248 249 // For fallback, we need to know how to find the GCC cc1 executables, so we 250 // also add the GCC libexec paths. This is legacy code that can be removed 251 // once fallback is no longer useful. 252 AddGCCLibexecPath(DarwinVersion[0]); 253 AddGCCLibexecPath(DarwinVersion[0] - 2); 254 AddGCCLibexecPath(DarwinVersion[0] - 1); 255 AddGCCLibexecPath(DarwinVersion[0] + 1); 256 AddGCCLibexecPath(DarwinVersion[0] + 2); 257} 258 259void DarwinClang::AddGCCLibexecPath(unsigned darwinVersion) { 260 std::string ToolChainDir = "i686-apple-darwin"; 261 ToolChainDir += llvm::utostr(darwinVersion); 262 ToolChainDir += "/4.2.1"; 263 264 std::string Path = getDriver().Dir; 265 Path += "/../llvm-gcc-4.2/libexec/gcc/"; 266 Path += ToolChainDir; 267 getProgramPaths().push_back(Path); 268 269 Path = "/usr/llvm-gcc-4.2/libexec/gcc/"; 270 Path += ToolChainDir; 271 getProgramPaths().push_back(Path); 272} 273 274void DarwinClang::AddLinkARCArgs(const ArgList &Args, 275 ArgStringList &CmdArgs) const { 276 277 CmdArgs.push_back("-force_load"); 278 llvm::sys::Path P(getDriver().ClangExecutable); 279 P.eraseComponent(); // 'clang' 280 P.eraseComponent(); // 'bin' 281 P.appendComponent("lib"); 282 P.appendComponent("arc"); 283 P.appendComponent("libarclite_"); 284 std::string s = P.str(); 285 // Mash in the platform. 286 if (isTargetIOSSimulator()) 287 s += "iphonesimulator"; 288 else if (isTargetIPhoneOS()) 289 s += "iphoneos"; 290 // FIXME: Remove this once we depend fully on -mios-simulator-version-min. 291 else if (TargetSimulatorVersionFromDefines != VersionTuple()) 292 s += "iphonesimulator"; 293 else 294 s += "macosx"; 295 s += ".a"; 296 297 CmdArgs.push_back(Args.MakeArgString(s)); 298} 299 300void DarwinClang::AddLinkRuntimeLib(const ArgList &Args, 301 ArgStringList &CmdArgs, 302 const char *DarwinStaticLib) const { 303 llvm::sys::Path P(getDriver().ResourceDir); 304 P.appendComponent("lib"); 305 P.appendComponent("darwin"); 306 P.appendComponent(DarwinStaticLib); 307 308 // For now, allow missing resource libraries to support developers who may 309 // not have compiler-rt checked out or integrated into their build. 310 bool Exists; 311 if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) 312 CmdArgs.push_back(Args.MakeArgString(P.str())); 313} 314 315void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args, 316 ArgStringList &CmdArgs) const { 317 // Darwin only supports the compiler-rt based runtime libraries. 318 switch (GetRuntimeLibType(Args)) { 319 case ToolChain::RLT_CompilerRT: 320 break; 321 default: 322 getDriver().Diag(diag::err_drv_unsupported_rtlib_for_platform) 323 << Args.getLastArg(options::OPT_rtlib_EQ)->getValue(Args) << "darwin"; 324 return; 325 } 326 327 // Darwin doesn't support real static executables, don't link any runtime 328 // libraries with -static. 329 if (Args.hasArg(options::OPT_static)) 330 return; 331 332 // Reject -static-libgcc for now, we can deal with this when and if someone 333 // cares. This is useful in situations where someone wants to statically link 334 // something like libstdc++, and needs its runtime support routines. 335 if (const Arg *A = Args.getLastArg(options::OPT_static_libgcc)) { 336 getDriver().Diag(diag::err_drv_unsupported_opt) 337 << A->getAsString(Args); 338 return; 339 } 340 341 // If we are building profile support, link that library in. 342 if (Args.hasArg(options::OPT_fprofile_arcs) || 343 Args.hasArg(options::OPT_fprofile_generate) || 344 Args.hasArg(options::OPT_fcreate_profile) || 345 Args.hasArg(options::OPT_coverage)) { 346 // Select the appropriate runtime library for the target. 347 if (isTargetIPhoneOS()) { 348 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.profile_ios.a"); 349 } else { 350 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.profile_osx.a"); 351 } 352 } 353 354 // Add ASAN runtime library, if required. Dynamic libraries and bundles 355 // should not be linked with the runtime library. 356 if (Args.hasFlag(options::OPT_faddress_sanitizer, 357 options::OPT_fno_address_sanitizer, false)) { 358 if (Args.hasArg(options::OPT_dynamiclib) || 359 Args.hasArg(options::OPT_bundle)) return; 360 if (isTargetIPhoneOS()) { 361 getDriver().Diag(diag::err_drv_clang_unsupported_per_platform) 362 << "-faddress-sanitizer"; 363 } else { 364 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.asan_osx.a"); 365 366 // The ASAN runtime library requires C++ and CoreFoundation. 367 AddCXXStdlibLibArgs(Args, CmdArgs); 368 CmdArgs.push_back("-framework"); 369 CmdArgs.push_back("CoreFoundation"); 370 } 371 } 372 373 // Otherwise link libSystem, then the dynamic runtime library, and finally any 374 // target specific static runtime library. 375 CmdArgs.push_back("-lSystem"); 376 377 // Select the dynamic runtime library and the target specific static library. 378 if (isTargetIPhoneOS()) { 379 // If we are compiling as iOS / simulator, don't attempt to link libgcc_s.1, 380 // it never went into the SDK. 381 // Linking against libgcc_s.1 isn't needed for iOS 5.0+ 382 if (isIPhoneOSVersionLT(5, 0) && !isTargetIOSSimulator()) 383 CmdArgs.push_back("-lgcc_s.1"); 384 385 // We currently always need a static runtime library for iOS. 386 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.ios.a"); 387 } else { 388 // The dynamic runtime library was merged with libSystem for 10.6 and 389 // beyond; only 10.4 and 10.5 need an additional runtime library. 390 if (isMacosxVersionLT(10, 5)) 391 CmdArgs.push_back("-lgcc_s.10.4"); 392 else if (isMacosxVersionLT(10, 6)) 393 CmdArgs.push_back("-lgcc_s.10.5"); 394 395 // For OS X, we thought we would only need a static runtime library when 396 // targeting 10.4, to provide versions of the static functions which were 397 // omitted from 10.4.dylib. 398 // 399 // Unfortunately, that turned out to not be true, because Darwin system 400 // headers can still use eprintf on i386, and it is not exported from 401 // libSystem. Therefore, we still must provide a runtime library just for 402 // the tiny tiny handful of projects that *might* use that symbol. 403 if (isMacosxVersionLT(10, 5)) { 404 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.10.4.a"); 405 } else { 406 if (getTriple().getArch() == llvm::Triple::x86) 407 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.eprintf.a"); 408 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.osx.a"); 409 } 410 } 411} 412 413static inline StringRef SimulatorVersionDefineName() { 414 return "__IPHONE_OS_VERSION_MIN_REQUIRED"; 415} 416 417/// \brief Parse the simulator version define: 418/// __IPHONE_OS_VERSION_MIN_REQUIRED=([0-9])([0-9][0-9])([0-9][0-9]) 419// and return the grouped values as integers, e.g: 420// __IPHONE_OS_VERSION_MIN_REQUIRED=40201 421// will return Major=4, Minor=2, Micro=1. 422static bool GetVersionFromSimulatorDefine(StringRef define, 423 unsigned &Major, unsigned &Minor, 424 unsigned &Micro) { 425 assert(define.startswith(SimulatorVersionDefineName())); 426 StringRef name, version; 427 llvm::tie(name, version) = define.split('='); 428 if (version.empty()) 429 return false; 430 std::string verstr = version.str(); 431 char *end; 432 unsigned num = (unsigned) strtol(verstr.c_str(), &end, 10); 433 if (*end != '\0') 434 return false; 435 Major = num / 10000; 436 num = num % 10000; 437 Minor = num / 100; 438 Micro = num % 100; 439 return true; 440} 441 442void Darwin::AddDeploymentTarget(DerivedArgList &Args) const { 443 const OptTable &Opts = getDriver().getOpts(); 444 445 Arg *OSXVersion = Args.getLastArg(options::OPT_mmacosx_version_min_EQ); 446 Arg *iOSVersion = Args.getLastArg(options::OPT_miphoneos_version_min_EQ); 447 Arg *iOSSimVersion = Args.getLastArg( 448 options::OPT_mios_simulator_version_min_EQ); 449 450 // FIXME: HACK! When compiling for the simulator we don't get a 451 // '-miphoneos-version-min' to help us know whether there is an ARC runtime 452 // or not; try to parse a __IPHONE_OS_VERSION_MIN_REQUIRED 453 // define passed in command-line. 454 if (!iOSVersion && !iOSSimVersion) { 455 for (arg_iterator it = Args.filtered_begin(options::OPT_D), 456 ie = Args.filtered_end(); it != ie; ++it) { 457 StringRef define = (*it)->getValue(Args); 458 if (define.startswith(SimulatorVersionDefineName())) { 459 unsigned Major = 0, Minor = 0, Micro = 0; 460 if (GetVersionFromSimulatorDefine(define, Major, Minor, Micro) && 461 Major < 10 && Minor < 100 && Micro < 100) { 462 TargetSimulatorVersionFromDefines = VersionTuple(Major, Minor, Micro); 463 } 464 // When using the define to indicate the simulator, we force 465 // 10.6 macosx target. 466 const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ); 467 OSXVersion = Args.MakeJoinedArg(0, O, "10.6"); 468 Args.append(OSXVersion); 469 break; 470 } 471 } 472 } 473 474 if (OSXVersion && (iOSVersion || iOSSimVersion)) { 475 getDriver().Diag(diag::err_drv_argument_not_allowed_with) 476 << OSXVersion->getAsString(Args) 477 << (iOSVersion ? iOSVersion : iOSSimVersion)->getAsString(Args); 478 iOSVersion = iOSSimVersion = 0; 479 } else if (iOSVersion && iOSSimVersion) { 480 getDriver().Diag(diag::err_drv_argument_not_allowed_with) 481 << iOSVersion->getAsString(Args) 482 << iOSSimVersion->getAsString(Args); 483 iOSSimVersion = 0; 484 } else if (!OSXVersion && !iOSVersion && !iOSSimVersion) { 485 // If no deployment target was specified on the command line, check for 486 // environment defines. 487 StringRef OSXTarget; 488 StringRef iOSTarget; 489 StringRef iOSSimTarget; 490 if (char *env = ::getenv("MACOSX_DEPLOYMENT_TARGET")) 491 OSXTarget = env; 492 if (char *env = ::getenv("IPHONEOS_DEPLOYMENT_TARGET")) 493 iOSTarget = env; 494 if (char *env = ::getenv("IOS_SIMULATOR_DEPLOYMENT_TARGET")) 495 iOSSimTarget = env; 496 497 // If no '-miphoneos-version-min' specified on the command line and 498 // IPHONEOS_DEPLOYMENT_TARGET is not defined, see if we can set the default 499 // based on -isysroot. 500 if (iOSTarget.empty()) { 501 if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { 502 StringRef first, second; 503 StringRef isysroot = A->getValue(Args); 504 llvm::tie(first, second) = isysroot.split(StringRef("SDKs/iPhoneOS")); 505 if (second != "") 506 iOSTarget = second.substr(0,3); 507 } 508 } 509 510 // If no OSX or iOS target has been specified and we're compiling for armv7, 511 // go ahead as assume we're targeting iOS. 512 if (OSXTarget.empty() && iOSTarget.empty() && 513 getDarwinArchName(Args) == "armv7") 514 iOSTarget = iOSVersionMin; 515 516 // Handle conflicting deployment targets 517 // 518 // FIXME: Don't hardcode default here. 519 520 // Do not allow conflicts with the iOS simulator target. 521 if (!iOSSimTarget.empty() && (!OSXTarget.empty() || !iOSTarget.empty())) { 522 getDriver().Diag(diag::err_drv_conflicting_deployment_targets) 523 << "IOS_SIMULATOR_DEPLOYMENT_TARGET" 524 << (!OSXTarget.empty() ? "MACOSX_DEPLOYMENT_TARGET" : 525 "IPHONEOS_DEPLOYMENT_TARGET"); 526 } 527 528 // Allow conflicts among OSX and iOS for historical reasons, but choose the 529 // default platform. 530 if (!OSXTarget.empty() && !iOSTarget.empty()) { 531 if (getTriple().getArch() == llvm::Triple::arm || 532 getTriple().getArch() == llvm::Triple::thumb) 533 OSXTarget = ""; 534 else 535 iOSTarget = ""; 536 } 537 538 if (!OSXTarget.empty()) { 539 const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ); 540 OSXVersion = Args.MakeJoinedArg(0, O, OSXTarget); 541 Args.append(OSXVersion); 542 } else if (!iOSTarget.empty()) { 543 const Option *O = Opts.getOption(options::OPT_miphoneos_version_min_EQ); 544 iOSVersion = Args.MakeJoinedArg(0, O, iOSTarget); 545 Args.append(iOSVersion); 546 } else if (!iOSSimTarget.empty()) { 547 const Option *O = Opts.getOption( 548 options::OPT_mios_simulator_version_min_EQ); 549 iOSSimVersion = Args.MakeJoinedArg(0, O, iOSSimTarget); 550 Args.append(iOSSimVersion); 551 } else { 552 // Otherwise, assume we are targeting OS X. 553 const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ); 554 OSXVersion = Args.MakeJoinedArg(0, O, MacosxVersionMin); 555 Args.append(OSXVersion); 556 } 557 } 558 559 // Reject invalid architecture combinations. 560 if (iOSSimVersion && (getTriple().getArch() != llvm::Triple::x86 && 561 getTriple().getArch() != llvm::Triple::x86_64)) { 562 getDriver().Diag(diag::err_drv_invalid_arch_for_deployment_target) 563 << getTriple().getArchName() << iOSSimVersion->getAsString(Args); 564 } 565 566 // Set the tool chain target information. 567 unsigned Major, Minor, Micro; 568 bool HadExtra; 569 if (OSXVersion) { 570 assert((!iOSVersion && !iOSSimVersion) && "Unknown target platform!"); 571 if (!Driver::GetReleaseVersion(OSXVersion->getValue(Args), Major, Minor, 572 Micro, HadExtra) || HadExtra || 573 Major != 10 || Minor >= 100 || Micro >= 100) 574 getDriver().Diag(diag::err_drv_invalid_version_number) 575 << OSXVersion->getAsString(Args); 576 } else { 577 const Arg *Version = iOSVersion ? iOSVersion : iOSSimVersion; 578 assert(Version && "Unknown target platform!"); 579 if (!Driver::GetReleaseVersion(Version->getValue(Args), Major, Minor, 580 Micro, HadExtra) || HadExtra || 581 Major >= 10 || Minor >= 100 || Micro >= 100) 582 getDriver().Diag(diag::err_drv_invalid_version_number) 583 << Version->getAsString(Args); 584 } 585 586 bool IsIOSSim = bool(iOSSimVersion); 587 588 // In GCC, the simulator historically was treated as being OS X in some 589 // contexts, like determining the link logic, despite generally being called 590 // with an iOS deployment target. For compatibility, we detect the 591 // simulator as iOS + x86, and treat it differently in a few contexts. 592 if (iOSVersion && (getTriple().getArch() == llvm::Triple::x86 || 593 getTriple().getArch() == llvm::Triple::x86_64)) 594 IsIOSSim = true; 595 596 setTarget(/*IsIPhoneOS=*/ !OSXVersion, Major, Minor, Micro, IsIOSSim); 597} 598 599void DarwinClang::AddCXXStdlibLibArgs(const ArgList &Args, 600 ArgStringList &CmdArgs) const { 601 CXXStdlibType Type = GetCXXStdlibType(Args); 602 603 switch (Type) { 604 case ToolChain::CST_Libcxx: 605 CmdArgs.push_back("-lc++"); 606 break; 607 608 case ToolChain::CST_Libstdcxx: { 609 // Unfortunately, -lstdc++ doesn't always exist in the standard search path; 610 // it was previously found in the gcc lib dir. However, for all the Darwin 611 // platforms we care about it was -lstdc++.6, so we search for that 612 // explicitly if we can't see an obvious -lstdc++ candidate. 613 614 // Check in the sysroot first. 615 bool Exists; 616 if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { 617 llvm::sys::Path P(A->getValue(Args)); 618 P.appendComponent("usr"); 619 P.appendComponent("lib"); 620 P.appendComponent("libstdc++.dylib"); 621 622 if (llvm::sys::fs::exists(P.str(), Exists) || !Exists) { 623 P.eraseComponent(); 624 P.appendComponent("libstdc++.6.dylib"); 625 if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) { 626 CmdArgs.push_back(Args.MakeArgString(P.str())); 627 return; 628 } 629 } 630 } 631 632 // Otherwise, look in the root. 633 // FIXME: This should be removed someday when we don't have to care about 634 // 10.6 and earlier, where /usr/lib/libstdc++.dylib does not exist. 635 if ((llvm::sys::fs::exists("/usr/lib/libstdc++.dylib", Exists) || !Exists)&& 636 (!llvm::sys::fs::exists("/usr/lib/libstdc++.6.dylib", Exists) && Exists)){ 637 CmdArgs.push_back("/usr/lib/libstdc++.6.dylib"); 638 return; 639 } 640 641 // Otherwise, let the linker search. 642 CmdArgs.push_back("-lstdc++"); 643 break; 644 } 645 } 646} 647 648void DarwinClang::AddCCKextLibArgs(const ArgList &Args, 649 ArgStringList &CmdArgs) const { 650 651 // For Darwin platforms, use the compiler-rt-based support library 652 // instead of the gcc-provided one (which is also incidentally 653 // only present in the gcc lib dir, which makes it hard to find). 654 655 llvm::sys::Path P(getDriver().ResourceDir); 656 P.appendComponent("lib"); 657 P.appendComponent("darwin"); 658 P.appendComponent("libclang_rt.cc_kext.a"); 659 660 // For now, allow missing resource libraries to support developers who may 661 // not have compiler-rt checked out or integrated into their build. 662 bool Exists; 663 if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) 664 CmdArgs.push_back(Args.MakeArgString(P.str())); 665} 666 667DerivedArgList *Darwin::TranslateArgs(const DerivedArgList &Args, 668 const char *BoundArch) const { 669 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); 670 const OptTable &Opts = getDriver().getOpts(); 671 672 // FIXME: We really want to get out of the tool chain level argument 673 // translation business, as it makes the driver functionality much 674 // more opaque. For now, we follow gcc closely solely for the 675 // purpose of easily achieving feature parity & testability. Once we 676 // have something that works, we should reevaluate each translation 677 // and try to push it down into tool specific logic. 678 679 for (ArgList::const_iterator it = Args.begin(), 680 ie = Args.end(); it != ie; ++it) { 681 Arg *A = *it; 682 683 if (A->getOption().matches(options::OPT_Xarch__)) { 684 // Skip this argument unless the architecture matches either the toolchain 685 // triple arch, or the arch being bound. 686 // 687 // FIXME: Canonicalize name. 688 StringRef XarchArch = A->getValue(Args, 0); 689 if (!(XarchArch == getArchName() || 690 (BoundArch && XarchArch == BoundArch))) 691 continue; 692 693 Arg *OriginalArg = A; 694 unsigned Index = Args.getBaseArgs().MakeIndex(A->getValue(Args, 1)); 695 unsigned Prev = Index; 696 Arg *XarchArg = Opts.ParseOneArg(Args, Index); 697 698 // If the argument parsing failed or more than one argument was 699 // consumed, the -Xarch_ argument's parameter tried to consume 700 // extra arguments. Emit an error and ignore. 701 // 702 // We also want to disallow any options which would alter the 703 // driver behavior; that isn't going to work in our model. We 704 // use isDriverOption() as an approximation, although things 705 // like -O4 are going to slip through. 706 if (!XarchArg || Index > Prev + 1) { 707 getDriver().Diag(diag::err_drv_invalid_Xarch_argument_with_args) 708 << A->getAsString(Args); 709 continue; 710 } else if (XarchArg->getOption().isDriverOption()) { 711 getDriver().Diag(diag::err_drv_invalid_Xarch_argument_isdriver) 712 << A->getAsString(Args); 713 continue; 714 } 715 716 XarchArg->setBaseArg(A); 717 A = XarchArg; 718 719 DAL->AddSynthesizedArg(A); 720 721 // Linker input arguments require custom handling. The problem is that we 722 // have already constructed the phase actions, so we can not treat them as 723 // "input arguments". 724 if (A->getOption().isLinkerInput()) { 725 // Convert the argument into individual Zlinker_input_args. 726 for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) { 727 DAL->AddSeparateArg(OriginalArg, 728 Opts.getOption(options::OPT_Zlinker_input), 729 A->getValue(Args, i)); 730 731 } 732 continue; 733 } 734 } 735 736 // Sob. These is strictly gcc compatible for the time being. Apple 737 // gcc translates options twice, which means that self-expanding 738 // options add duplicates. 739 switch ((options::ID) A->getOption().getID()) { 740 default: 741 DAL->append(A); 742 break; 743 744 case options::OPT_mkernel: 745 case options::OPT_fapple_kext: 746 DAL->append(A); 747 DAL->AddFlagArg(A, Opts.getOption(options::OPT_static)); 748 break; 749 750 case options::OPT_dependency_file: 751 DAL->AddSeparateArg(A, Opts.getOption(options::OPT_MF), 752 A->getValue(Args)); 753 break; 754 755 case options::OPT_gfull: 756 DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); 757 DAL->AddFlagArg(A, 758 Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols)); 759 break; 760 761 case options::OPT_gused: 762 DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); 763 DAL->AddFlagArg(A, 764 Opts.getOption(options::OPT_feliminate_unused_debug_symbols)); 765 break; 766 767 case options::OPT_shared: 768 DAL->AddFlagArg(A, Opts.getOption(options::OPT_dynamiclib)); 769 break; 770 771 case options::OPT_fconstant_cfstrings: 772 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mconstant_cfstrings)); 773 break; 774 775 case options::OPT_fno_constant_cfstrings: 776 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_constant_cfstrings)); 777 break; 778 779 case options::OPT_Wnonportable_cfstrings: 780 DAL->AddFlagArg(A, 781 Opts.getOption(options::OPT_mwarn_nonportable_cfstrings)); 782 break; 783 784 case options::OPT_Wno_nonportable_cfstrings: 785 DAL->AddFlagArg(A, 786 Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings)); 787 break; 788 789 case options::OPT_fpascal_strings: 790 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mpascal_strings)); 791 break; 792 793 case options::OPT_fno_pascal_strings: 794 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_pascal_strings)); 795 break; 796 } 797 } 798 799 if (getTriple().getArch() == llvm::Triple::x86 || 800 getTriple().getArch() == llvm::Triple::x86_64) 801 if (!Args.hasArgNoClaim(options::OPT_mtune_EQ)) 802 DAL->AddJoinedArg(0, Opts.getOption(options::OPT_mtune_EQ), "core2"); 803 804 // Add the arch options based on the particular spelling of -arch, to match 805 // how the driver driver works. 806 if (BoundArch) { 807 StringRef Name = BoundArch; 808 const Option *MCpu = Opts.getOption(options::OPT_mcpu_EQ); 809 const Option *MArch = Opts.getOption(options::OPT_march_EQ); 810 811 // This code must be kept in sync with LLVM's getArchTypeForDarwinArch, 812 // which defines the list of which architectures we accept. 813 if (Name == "ppc") 814 ; 815 else if (Name == "ppc601") 816 DAL->AddJoinedArg(0, MCpu, "601"); 817 else if (Name == "ppc603") 818 DAL->AddJoinedArg(0, MCpu, "603"); 819 else if (Name == "ppc604") 820 DAL->AddJoinedArg(0, MCpu, "604"); 821 else if (Name == "ppc604e") 822 DAL->AddJoinedArg(0, MCpu, "604e"); 823 else if (Name == "ppc750") 824 DAL->AddJoinedArg(0, MCpu, "750"); 825 else if (Name == "ppc7400") 826 DAL->AddJoinedArg(0, MCpu, "7400"); 827 else if (Name == "ppc7450") 828 DAL->AddJoinedArg(0, MCpu, "7450"); 829 else if (Name == "ppc970") 830 DAL->AddJoinedArg(0, MCpu, "970"); 831 832 else if (Name == "ppc64") 833 DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64)); 834 835 else if (Name == "i386") 836 ; 837 else if (Name == "i486") 838 DAL->AddJoinedArg(0, MArch, "i486"); 839 else if (Name == "i586") 840 DAL->AddJoinedArg(0, MArch, "i586"); 841 else if (Name == "i686") 842 DAL->AddJoinedArg(0, MArch, "i686"); 843 else if (Name == "pentium") 844 DAL->AddJoinedArg(0, MArch, "pentium"); 845 else if (Name == "pentium2") 846 DAL->AddJoinedArg(0, MArch, "pentium2"); 847 else if (Name == "pentpro") 848 DAL->AddJoinedArg(0, MArch, "pentiumpro"); 849 else if (Name == "pentIIm3") 850 DAL->AddJoinedArg(0, MArch, "pentium2"); 851 852 else if (Name == "x86_64") 853 DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64)); 854 855 else if (Name == "arm") 856 DAL->AddJoinedArg(0, MArch, "armv4t"); 857 else if (Name == "armv4t") 858 DAL->AddJoinedArg(0, MArch, "armv4t"); 859 else if (Name == "armv5") 860 DAL->AddJoinedArg(0, MArch, "armv5tej"); 861 else if (Name == "xscale") 862 DAL->AddJoinedArg(0, MArch, "xscale"); 863 else if (Name == "armv6") 864 DAL->AddJoinedArg(0, MArch, "armv6k"); 865 else if (Name == "armv7") 866 DAL->AddJoinedArg(0, MArch, "armv7a"); 867 868 else 869 llvm_unreachable("invalid Darwin arch"); 870 } 871 872 // Add an explicit version min argument for the deployment target. We do this 873 // after argument translation because -Xarch_ arguments may add a version min 874 // argument. 875 if (BoundArch) 876 AddDeploymentTarget(*DAL); 877 878 // Validate the C++ standard library choice. 879 CXXStdlibType Type = GetCXXStdlibType(*DAL); 880 if (Type == ToolChain::CST_Libcxx) { 881 // Check whether the target provides libc++. 882 StringRef where; 883 884 // Complain about targetting iOS < 5.0 in any way. 885 if (TargetSimulatorVersionFromDefines != VersionTuple()) { 886 if (TargetSimulatorVersionFromDefines < VersionTuple(5, 0)) 887 where = "iOS 5.0"; 888 } else if (isTargetIPhoneOS()) { 889 if (isIPhoneOSVersionLT(5, 0)) 890 where = "iOS 5.0"; 891 } 892 893 if (where != StringRef()) { 894 getDriver().Diag(clang::diag::err_drv_invalid_libcxx_deployment) 895 << where; 896 } 897 } 898 899 return DAL; 900} 901 902bool Darwin::IsUnwindTablesDefault() const { 903 // FIXME: Gross; we should probably have some separate target 904 // definition, possibly even reusing the one in clang. 905 return getArchName() == "x86_64"; 906} 907 908bool Darwin::UseDwarfDebugFlags() const { 909 if (const char *S = ::getenv("RC_DEBUG_OPTIONS")) 910 return S[0] != '\0'; 911 return false; 912} 913 914bool Darwin::UseSjLjExceptions() const { 915 // Darwin uses SjLj exceptions on ARM. 916 return (getTriple().getArch() == llvm::Triple::arm || 917 getTriple().getArch() == llvm::Triple::thumb); 918} 919 920const char *Darwin::GetDefaultRelocationModel() const { 921 return "pic"; 922} 923 924const char *Darwin::GetForcedPicModel() const { 925 if (getArchName() == "x86_64") 926 return "pic"; 927 return 0; 928} 929 930bool Darwin::SupportsProfiling() const { 931 // Profiling instrumentation is only supported on x86. 932 return getArchName() == "i386" || getArchName() == "x86_64"; 933} 934 935bool Darwin::SupportsObjCGC() const { 936 // Garbage collection is supported everywhere except on iPhone OS. 937 return !isTargetIPhoneOS(); 938} 939 940bool Darwin::SupportsObjCARC() const { 941 return isTargetIPhoneOS() || !isMacosxVersionLT(10, 6); 942} 943 944std::string 945Darwin_Generic_GCC::ComputeEffectiveClangTriple(const ArgList &Args, 946 types::ID InputType) const { 947 return ComputeLLVMTriple(Args, InputType); 948} 949 950/// Generic_GCC - A tool chain using the 'gcc' command to perform 951/// all subcommands; this relies on gcc translating the majority of 952/// command line options. 953 954/// \brief Parse a GCCVersion object out of a string of text. 955/// 956/// This is the primary means of forming GCCVersion objects. 957/*static*/ 958Generic_GCC::GCCVersion Linux::GCCVersion::Parse(StringRef VersionText) { 959 const GCCVersion BadVersion = { VersionText.str(), -1, -1, -1, "" }; 960 std::pair<StringRef, StringRef> First = VersionText.split('.'); 961 std::pair<StringRef, StringRef> Second = First.second.split('.'); 962 963 GCCVersion GoodVersion = { VersionText.str(), -1, -1, -1, "" }; 964 if (First.first.getAsInteger(10, GoodVersion.Major) || 965 GoodVersion.Major < 0) 966 return BadVersion; 967 if (Second.first.getAsInteger(10, GoodVersion.Minor) || 968 GoodVersion.Minor < 0) 969 return BadVersion; 970 971 // First look for a number prefix and parse that if present. Otherwise just 972 // stash the entire patch string in the suffix, and leave the number 973 // unspecified. This covers versions strings such as: 974 // 4.4 975 // 4.4.0 976 // 4.4.x 977 // 4.4.2-rc4 978 // 4.4.x-patched 979 // And retains any patch number it finds. 980 StringRef PatchText = GoodVersion.PatchSuffix = Second.second.str(); 981 if (!PatchText.empty()) { 982 if (unsigned EndNumber = PatchText.find_first_not_of("0123456789")) { 983 // Try to parse the number and any suffix. 984 if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) || 985 GoodVersion.Patch < 0) 986 return BadVersion; 987 GoodVersion.PatchSuffix = PatchText.substr(EndNumber).str(); 988 } 989 } 990 991 return GoodVersion; 992} 993 994/// \brief Less-than for GCCVersion, implementing a Strict Weak Ordering. 995bool Generic_GCC::GCCVersion::operator<(const GCCVersion &RHS) const { 996 if (Major < RHS.Major) return true; if (Major > RHS.Major) return false; 997 if (Minor < RHS.Minor) return true; if (Minor > RHS.Minor) return false; 998 999 // Note that we rank versions with *no* patch specified is better than ones 1000 // hard-coding a patch version. Thus if the RHS has no patch, it always 1001 // wins, and the LHS only wins if it has no patch and the RHS does have 1002 // a patch. 1003 if (RHS.Patch == -1) return true; if (Patch == -1) return false; 1004 if (Patch < RHS.Patch) return true; if (Patch > RHS.Patch) return false; 1005 if (PatchSuffix == RHS.PatchSuffix) return false; 1006 1007 // Finally, between completely tied version numbers, the version with the 1008 // suffix loses as we prefer full releases. 1009 if (RHS.PatchSuffix.empty()) return true; 1010 return false; 1011} 1012 1013static StringRef getGCCToolchainDir(const ArgList &Args) { 1014 const Arg *A = Args.getLastArg(options::OPT_gcc_toolchain); 1015 if (A) 1016 return A->getValue(Args); 1017 return GCC_INSTALL_PREFIX; 1018} 1019 1020/// \brief Construct a GCCInstallationDetector from the driver. 1021/// 1022/// This performs all of the autodetection and sets up the various paths. 1023/// Once constructed, a GCCInstallationDetector is essentially immutable. 1024/// 1025/// FIXME: We shouldn't need an explicit TargetTriple parameter here, and 1026/// should instead pull the target out of the driver. This is currently 1027/// necessary because the driver doesn't store the final version of the target 1028/// triple. 1029Generic_GCC::GCCInstallationDetector::GCCInstallationDetector( 1030 const Driver &D, 1031 const llvm::Triple &TargetTriple, 1032 const ArgList &Args) 1033 : IsValid(false) { 1034 llvm::Triple MultiarchTriple 1035 = TargetTriple.isArch32Bit() ? TargetTriple.get64BitArchVariant() 1036 : TargetTriple.get32BitArchVariant(); 1037 llvm::Triple::ArchType TargetArch = TargetTriple.getArch(); 1038 // The library directories which may contain GCC installations. 1039 SmallVector<StringRef, 4> CandidateLibDirs, CandidateMultiarchLibDirs; 1040 // The compatible GCC triples for this particular architecture. 1041 SmallVector<StringRef, 10> CandidateTripleAliases; 1042 SmallVector<StringRef, 10> CandidateMultiarchTripleAliases; 1043 CollectLibDirsAndTriples(TargetTriple, MultiarchTriple, CandidateLibDirs, 1044 CandidateTripleAliases, 1045 CandidateMultiarchLibDirs, 1046 CandidateMultiarchTripleAliases); 1047 1048 // Compute the set of prefixes for our search. 1049 SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(), 1050 D.PrefixDirs.end()); 1051 1052 StringRef GCCToolchainDir = getGCCToolchainDir(Args); 1053 if (GCCToolchainDir != "") { 1054 if (GCCToolchainDir.back() == '/') 1055 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the / 1056 1057 Prefixes.push_back(GCCToolchainDir); 1058 } else { 1059 Prefixes.push_back(D.SysRoot); 1060 Prefixes.push_back(D.SysRoot + "/usr"); 1061 Prefixes.push_back(D.InstalledDir + "/.."); 1062 } 1063 1064 // Loop over the various components which exist and select the best GCC 1065 // installation available. GCC installs are ranked by version number. 1066 Version = GCCVersion::Parse("0.0.0"); 1067 for (unsigned i = 0, ie = Prefixes.size(); i < ie; ++i) { 1068 if (!llvm::sys::fs::exists(Prefixes[i])) 1069 continue; 1070 for (unsigned j = 0, je = CandidateLibDirs.size(); j < je; ++j) { 1071 const std::string LibDir = Prefixes[i] + CandidateLibDirs[j].str(); 1072 if (!llvm::sys::fs::exists(LibDir)) 1073 continue; 1074 for (unsigned k = 0, ke = CandidateTripleAliases.size(); k < ke; ++k) 1075 ScanLibDirForGCCTriple(TargetArch, LibDir, CandidateTripleAliases[k]); 1076 } 1077 for (unsigned j = 0, je = CandidateMultiarchLibDirs.size(); j < je; ++j) { 1078 const std::string LibDir 1079 = Prefixes[i] + CandidateMultiarchLibDirs[j].str(); 1080 if (!llvm::sys::fs::exists(LibDir)) 1081 continue; 1082 for (unsigned k = 0, ke = CandidateMultiarchTripleAliases.size(); k < ke; 1083 ++k) 1084 ScanLibDirForGCCTriple(TargetArch, LibDir, 1085 CandidateMultiarchTripleAliases[k], 1086 /*NeedsMultiarchSuffix=*/true); 1087 } 1088 } 1089} 1090 1091/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples( 1092 const llvm::Triple &TargetTriple, 1093 const llvm::Triple &MultiarchTriple, 1094 SmallVectorImpl<StringRef> &LibDirs, 1095 SmallVectorImpl<StringRef> &TripleAliases, 1096 SmallVectorImpl<StringRef> &MultiarchLibDirs, 1097 SmallVectorImpl<StringRef> &MultiarchTripleAliases) { 1098 // Declare a bunch of static data sets that we'll select between below. These 1099 // are specifically designed to always refer to string literals to avoid any 1100 // lifetime or initialization issues. 1101 static const char *const ARMLibDirs[] = { "/lib" }; 1102 static const char *const ARMTriples[] = { 1103 "arm-linux-gnueabi", 1104 "arm-linux-androideabi" 1105 }; 1106 static const char *const ARMHFTriples[] = { 1107 "arm-linux-gnueabihf", 1108 }; 1109 1110 static const char *const X86_64LibDirs[] = { "/lib64", "/lib" }; 1111 static const char *const X86_64Triples[] = { 1112 "x86_64-linux-gnu", 1113 "x86_64-unknown-linux-gnu", 1114 "x86_64-pc-linux-gnu", 1115 "x86_64-redhat-linux6E", 1116 "x86_64-redhat-linux", 1117 "x86_64-suse-linux", 1118 "x86_64-manbo-linux-gnu", 1119 "x86_64-linux-gnu", 1120 "x86_64-slackware-linux" 1121 }; 1122 static const char *const X86LibDirs[] = { "/lib32", "/lib" }; 1123 static const char *const X86Triples[] = { 1124 "i686-linux-gnu", 1125 "i686-pc-linux-gnu", 1126 "i486-linux-gnu", 1127 "i386-linux-gnu", 1128 "i686-redhat-linux", 1129 "i586-redhat-linux", 1130 "i386-redhat-linux", 1131 "i586-suse-linux", 1132 "i486-slackware-linux", 1133 "i686-montavista-linux" 1134 }; 1135 1136 static const char *const MIPSLibDirs[] = { "/lib" }; 1137 static const char *const MIPSTriples[] = { "mips-linux-gnu" }; 1138 static const char *const MIPSELLibDirs[] = { "/lib" }; 1139 static const char *const MIPSELTriples[] = { "mipsel-linux-gnu" }; 1140 1141 static const char *const MIPS64LibDirs[] = { "/lib64", "/lib" }; 1142 static const char *const MIPS64Triples[] = { "mips64-linux-gnu" }; 1143 static const char *const MIPS64ELLibDirs[] = { "/lib64", "/lib" }; 1144 static const char *const MIPS64ELTriples[] = { "mips64el-linux-gnu" }; 1145 1146 static const char *const PPCLibDirs[] = { "/lib32", "/lib" }; 1147 static const char *const PPCTriples[] = { 1148 "powerpc-linux-gnu", 1149 "powerpc-unknown-linux-gnu", 1150 "powerpc-suse-linux", 1151 "powerpc-montavista-linuxspe" 1152 }; 1153 static const char *const PPC64LibDirs[] = { "/lib64", "/lib" }; 1154 static const char *const PPC64Triples[] = { 1155 "powerpc64-linux-gnu", 1156 "powerpc64-unknown-linux-gnu", 1157 "powerpc64-suse-linux", 1158 "ppc64-redhat-linux" 1159 }; 1160 1161 switch (TargetTriple.getArch()) { 1162 case llvm::Triple::arm: 1163 case llvm::Triple::thumb: 1164 LibDirs.append(ARMLibDirs, ARMLibDirs + llvm::array_lengthof(ARMLibDirs)); 1165 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) { 1166 TripleAliases.append( 1167 ARMHFTriples, ARMHFTriples + llvm::array_lengthof(ARMHFTriples)); 1168 } else { 1169 TripleAliases.append( 1170 ARMTriples, ARMTriples + llvm::array_lengthof(ARMTriples)); 1171 } 1172 break; 1173 case llvm::Triple::x86_64: 1174 LibDirs.append( 1175 X86_64LibDirs, X86_64LibDirs + llvm::array_lengthof(X86_64LibDirs)); 1176 TripleAliases.append( 1177 X86_64Triples, X86_64Triples + llvm::array_lengthof(X86_64Triples)); 1178 MultiarchLibDirs.append( 1179 X86LibDirs, X86LibDirs + llvm::array_lengthof(X86LibDirs)); 1180 MultiarchTripleAliases.append( 1181 X86Triples, X86Triples + llvm::array_lengthof(X86Triples)); 1182 break; 1183 case llvm::Triple::x86: 1184 LibDirs.append(X86LibDirs, X86LibDirs + llvm::array_lengthof(X86LibDirs)); 1185 TripleAliases.append( 1186 X86Triples, X86Triples + llvm::array_lengthof(X86Triples)); 1187 MultiarchLibDirs.append( 1188 X86_64LibDirs, X86_64LibDirs + llvm::array_lengthof(X86_64LibDirs)); 1189 MultiarchTripleAliases.append( 1190 X86_64Triples, X86_64Triples + llvm::array_lengthof(X86_64Triples)); 1191 break; 1192 case llvm::Triple::mips: 1193 LibDirs.append( 1194 MIPSLibDirs, MIPSLibDirs + llvm::array_lengthof(MIPSLibDirs)); 1195 TripleAliases.append( 1196 MIPSTriples, MIPSTriples + llvm::array_lengthof(MIPSTriples)); 1197 MultiarchLibDirs.append( 1198 MIPS64LibDirs, MIPS64LibDirs + llvm::array_lengthof(MIPS64LibDirs)); 1199 MultiarchTripleAliases.append( 1200 MIPS64Triples, MIPS64Triples + llvm::array_lengthof(MIPS64Triples)); 1201 break; 1202 case llvm::Triple::mipsel: 1203 LibDirs.append( 1204 MIPSELLibDirs, MIPSELLibDirs + llvm::array_lengthof(MIPSELLibDirs)); 1205 TripleAliases.append( 1206 MIPSELTriples, MIPSELTriples + llvm::array_lengthof(MIPSELTriples)); 1207 MultiarchLibDirs.append( 1208 MIPS64ELLibDirs, MIPS64ELLibDirs + llvm::array_lengthof(MIPS64ELLibDirs)); 1209 MultiarchTripleAliases.append( 1210 MIPS64ELTriples, MIPS64ELTriples + llvm::array_lengthof(MIPS64ELTriples)); 1211 break; 1212 case llvm::Triple::mips64: 1213 LibDirs.append( 1214 MIPS64LibDirs, MIPS64LibDirs + llvm::array_lengthof(MIPS64LibDirs)); 1215 TripleAliases.append( 1216 MIPS64Triples, MIPS64Triples + llvm::array_lengthof(MIPS64Triples)); 1217 MultiarchLibDirs.append( 1218 MIPSLibDirs, MIPSLibDirs + llvm::array_lengthof(MIPSLibDirs)); 1219 MultiarchTripleAliases.append( 1220 MIPSTriples, MIPSTriples + llvm::array_lengthof(MIPSTriples)); 1221 break; 1222 case llvm::Triple::mips64el: 1223 LibDirs.append( 1224 MIPS64ELLibDirs, MIPS64ELLibDirs + llvm::array_lengthof(MIPS64ELLibDirs)); 1225 TripleAliases.append( 1226 MIPS64ELTriples, MIPS64ELTriples + llvm::array_lengthof(MIPS64ELTriples)); 1227 MultiarchLibDirs.append( 1228 MIPSELLibDirs, MIPSELLibDirs + llvm::array_lengthof(MIPSELLibDirs)); 1229 MultiarchTripleAliases.append( 1230 MIPSELTriples, MIPSELTriples + llvm::array_lengthof(MIPSELTriples)); 1231 break; 1232 case llvm::Triple::ppc: 1233 LibDirs.append(PPCLibDirs, PPCLibDirs + llvm::array_lengthof(PPCLibDirs)); 1234 TripleAliases.append( 1235 PPCTriples, PPCTriples + llvm::array_lengthof(PPCTriples)); 1236 MultiarchLibDirs.append( 1237 PPC64LibDirs, PPC64LibDirs + llvm::array_lengthof(PPC64LibDirs)); 1238 MultiarchTripleAliases.append( 1239 PPC64Triples, PPC64Triples + llvm::array_lengthof(PPC64Triples)); 1240 break; 1241 case llvm::Triple::ppc64: 1242 LibDirs.append( 1243 PPC64LibDirs, PPC64LibDirs + llvm::array_lengthof(PPC64LibDirs)); 1244 TripleAliases.append( 1245 PPC64Triples, PPC64Triples + llvm::array_lengthof(PPC64Triples)); 1246 MultiarchLibDirs.append( 1247 PPCLibDirs, PPCLibDirs + llvm::array_lengthof(PPCLibDirs)); 1248 MultiarchTripleAliases.append( 1249 PPCTriples, PPCTriples + llvm::array_lengthof(PPCTriples)); 1250 break; 1251 1252 default: 1253 // By default, just rely on the standard lib directories and the original 1254 // triple. 1255 break; 1256 } 1257 1258 // Always append the drivers target triple to the end, in case it doesn't 1259 // match any of our aliases. 1260 TripleAliases.push_back(TargetTriple.str()); 1261 1262 // Also include the multiarch variant if it's different. 1263 if (TargetTriple.str() != MultiarchTriple.str()) 1264 MultiarchTripleAliases.push_back(MultiarchTriple.str()); 1265} 1266 1267void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple( 1268 llvm::Triple::ArchType TargetArch, const std::string &LibDir, 1269 StringRef CandidateTriple, bool NeedsMultiarchSuffix) { 1270 // There are various different suffixes involving the triple we 1271 // check for. We also record what is necessary to walk from each back 1272 // up to the lib directory. 1273 const std::string LibSuffixes[] = { 1274 "/gcc/" + CandidateTriple.str(), 1275 "/" + CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), 1276 1277 // Ubuntu has a strange mis-matched pair of triples that this happens to 1278 // match. 1279 // FIXME: It may be worthwhile to generalize this and look for a second 1280 // triple. 1281 "/i386-linux-gnu/gcc/" + CandidateTriple.str() 1282 }; 1283 const std::string InstallSuffixes[] = { 1284 "/../../..", 1285 "/../../../..", 1286 "/../../../.." 1287 }; 1288 // Only look at the final, weird Ubuntu suffix for i386-linux-gnu. 1289 const unsigned NumLibSuffixes = (llvm::array_lengthof(LibSuffixes) - 1290 (TargetArch != llvm::Triple::x86)); 1291 for (unsigned i = 0; i < NumLibSuffixes; ++i) { 1292 StringRef LibSuffix = LibSuffixes[i]; 1293 llvm::error_code EC; 1294 for (llvm::sys::fs::directory_iterator LI(LibDir + LibSuffix, EC), LE; 1295 !EC && LI != LE; LI = LI.increment(EC)) { 1296 StringRef VersionText = llvm::sys::path::filename(LI->path()); 1297 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText); 1298 static const GCCVersion MinVersion = { "4.1.1", 4, 1, 1, "" }; 1299 if (CandidateVersion < MinVersion) 1300 continue; 1301 if (CandidateVersion <= Version) 1302 continue; 1303 1304 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs 1305 // in what would normally be GCCInstallPath and put the 64-bit 1306 // libs in a subdirectory named 64. The simple logic we follow is that 1307 // *if* there is a subdirectory of the right name with crtbegin.o in it, 1308 // we use that. If not, and if not a multiarch triple, we look for 1309 // crtbegin.o without the subdirectory. 1310 StringRef MultiarchSuffix 1311 = (TargetArch == llvm::Triple::x86_64 || 1312 TargetArch == llvm::Triple::ppc64 || 1313 TargetArch == llvm::Triple::mips64 || 1314 TargetArch == llvm::Triple::mips64el) ? "/64" : "/32"; 1315 if (llvm::sys::fs::exists(LI->path() + MultiarchSuffix + "/crtbegin.o")) { 1316 GCCMultiarchSuffix = MultiarchSuffix.str(); 1317 } else { 1318 if (NeedsMultiarchSuffix || 1319 !llvm::sys::fs::exists(LI->path() + "/crtbegin.o")) 1320 continue; 1321 GCCMultiarchSuffix.clear(); 1322 } 1323 1324 Version = CandidateVersion; 1325 GCCTriple.setTriple(CandidateTriple); 1326 // FIXME: We hack together the directory name here instead of 1327 // using LI to ensure stable path separators across Windows and 1328 // Linux. 1329 GCCInstallPath = LibDir + LibSuffixes[i] + "/" + VersionText.str(); 1330 GCCParentLibPath = GCCInstallPath + InstallSuffixes[i]; 1331 IsValid = true; 1332 } 1333 } 1334} 1335 1336Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple& Triple, 1337 const ArgList &Args) 1338 : ToolChain(D, Triple), GCCInstallation(getDriver(), Triple, Args) { 1339 getProgramPaths().push_back(getDriver().getInstalledDir()); 1340 if (getDriver().getInstalledDir() != getDriver().Dir) 1341 getProgramPaths().push_back(getDriver().Dir); 1342} 1343 1344Generic_GCC::~Generic_GCC() { 1345 // Free tool implementations. 1346 for (llvm::DenseMap<unsigned, Tool*>::iterator 1347 it = Tools.begin(), ie = Tools.end(); it != ie; ++it) 1348 delete it->second; 1349} 1350 1351Tool &Generic_GCC::SelectTool(const Compilation &C, 1352 const JobAction &JA, 1353 const ActionList &Inputs) const { 1354 Action::ActionClass Key; 1355 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1356 Key = Action::AnalyzeJobClass; 1357 else 1358 Key = JA.getKind(); 1359 1360 Tool *&T = Tools[Key]; 1361 if (!T) { 1362 switch (Key) { 1363 case Action::InputClass: 1364 case Action::BindArchClass: 1365 llvm_unreachable("Invalid tool kind."); 1366 case Action::PreprocessJobClass: 1367 T = new tools::gcc::Preprocess(*this); break; 1368 case Action::PrecompileJobClass: 1369 T = new tools::gcc::Precompile(*this); break; 1370 case Action::AnalyzeJobClass: 1371 case Action::MigrateJobClass: 1372 T = new tools::Clang(*this); break; 1373 case Action::CompileJobClass: 1374 T = new tools::gcc::Compile(*this); break; 1375 case Action::AssembleJobClass: 1376 T = new tools::gcc::Assemble(*this); break; 1377 case Action::LinkJobClass: 1378 T = new tools::gcc::Link(*this); break; 1379 1380 // This is a bit ungeneric, but the only platform using a driver 1381 // driver is Darwin. 1382 case Action::LipoJobClass: 1383 T = new tools::darwin::Lipo(*this); break; 1384 case Action::DsymutilJobClass: 1385 T = new tools::darwin::Dsymutil(*this); break; 1386 case Action::VerifyJobClass: 1387 T = new tools::darwin::VerifyDebug(*this); break; 1388 } 1389 } 1390 1391 return *T; 1392} 1393 1394bool Generic_GCC::IsUnwindTablesDefault() const { 1395 // FIXME: Gross; we should probably have some separate target 1396 // definition, possibly even reusing the one in clang. 1397 return getArchName() == "x86_64"; 1398} 1399 1400const char *Generic_GCC::GetDefaultRelocationModel() const { 1401 return "static"; 1402} 1403 1404const char *Generic_GCC::GetForcedPicModel() const { 1405 return 0; 1406} 1407/// Hexagon Toolchain 1408 1409Hexagon_TC::Hexagon_TC(const Driver &D, const llvm::Triple& Triple) 1410 : ToolChain(D, Triple) { 1411 getProgramPaths().push_back(getDriver().getInstalledDir()); 1412 if (getDriver().getInstalledDir() != getDriver().Dir.c_str()) 1413 getProgramPaths().push_back(getDriver().Dir); 1414} 1415 1416Hexagon_TC::~Hexagon_TC() { 1417 // Free tool implementations. 1418 for (llvm::DenseMap<unsigned, Tool*>::iterator 1419 it = Tools.begin(), ie = Tools.end(); it != ie; ++it) 1420 delete it->second; 1421} 1422 1423Tool &Hexagon_TC::SelectTool(const Compilation &C, 1424 const JobAction &JA, 1425 const ActionList &Inputs) const { 1426 Action::ActionClass Key; 1427 // if (JA.getKind () == Action::CompileJobClass) 1428 // Key = JA.getKind (); 1429 // else 1430 1431 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1432 Key = Action::AnalyzeJobClass; 1433 else 1434 Key = JA.getKind(); 1435 // if ((JA.getKind () == Action::CompileJobClass) 1436 // && (JA.getType () != types::TY_LTO_BC)) { 1437 // Key = JA.getKind (); 1438 // } 1439 1440 Tool *&T = Tools[Key]; 1441 if (!T) { 1442 switch (Key) { 1443 case Action::InputClass: 1444 case Action::BindArchClass: 1445 assert(0 && "Invalid tool kind."); 1446 case Action::AnalyzeJobClass: 1447 T = new tools::Clang(*this); break; 1448 case Action::AssembleJobClass: 1449 T = new tools::hexagon::Assemble(*this); break; 1450 case Action::LinkJobClass: 1451 T = new tools::hexagon::Link(*this); break; 1452 default: 1453 assert(false && "Unsupported action for Hexagon target."); 1454 } 1455 } 1456 1457 return *T; 1458} 1459 1460bool Hexagon_TC::IsUnwindTablesDefault() const { 1461 // FIXME: Gross; we should probably have some separate target 1462 // definition, possibly even reusing the one in clang. 1463 return getArchName() == "x86_64"; 1464} 1465 1466const char *Hexagon_TC::GetDefaultRelocationModel() const { 1467 return "static"; 1468} 1469 1470const char *Hexagon_TC::GetForcedPicModel() const { 1471 return 0; 1472} // End Hexagon 1473 1474 1475/// TCEToolChain - A tool chain using the llvm bitcode tools to perform 1476/// all subcommands. See http://tce.cs.tut.fi for our peculiar target. 1477/// Currently does not support anything else but compilation. 1478 1479TCEToolChain::TCEToolChain(const Driver &D, const llvm::Triple& Triple) 1480 : ToolChain(D, Triple) { 1481 // Path mangling to find libexec 1482 std::string Path(getDriver().Dir); 1483 1484 Path += "/../libexec"; 1485 getProgramPaths().push_back(Path); 1486} 1487 1488TCEToolChain::~TCEToolChain() { 1489 for (llvm::DenseMap<unsigned, Tool*>::iterator 1490 it = Tools.begin(), ie = Tools.end(); it != ie; ++it) 1491 delete it->second; 1492} 1493 1494bool TCEToolChain::IsMathErrnoDefault() const { 1495 return true; 1496} 1497 1498bool TCEToolChain::IsUnwindTablesDefault() const { 1499 return false; 1500} 1501 1502const char *TCEToolChain::GetDefaultRelocationModel() const { 1503 return "static"; 1504} 1505 1506const char *TCEToolChain::GetForcedPicModel() const { 1507 return 0; 1508} 1509 1510Tool &TCEToolChain::SelectTool(const Compilation &C, 1511 const JobAction &JA, 1512 const ActionList &Inputs) const { 1513 Action::ActionClass Key; 1514 Key = Action::AnalyzeJobClass; 1515 1516 Tool *&T = Tools[Key]; 1517 if (!T) { 1518 switch (Key) { 1519 case Action::PreprocessJobClass: 1520 T = new tools::gcc::Preprocess(*this); break; 1521 case Action::AnalyzeJobClass: 1522 T = new tools::Clang(*this); break; 1523 default: 1524 llvm_unreachable("Unsupported action for TCE target."); 1525 } 1526 } 1527 return *T; 1528} 1529 1530/// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly. 1531 1532OpenBSD::OpenBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) 1533 : Generic_ELF(D, Triple, Args) { 1534 getFilePaths().push_back(getDriver().Dir + "/../lib"); 1535 getFilePaths().push_back("/usr/lib"); 1536} 1537 1538Tool &OpenBSD::SelectTool(const Compilation &C, const JobAction &JA, 1539 const ActionList &Inputs) const { 1540 Action::ActionClass Key; 1541 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1542 Key = Action::AnalyzeJobClass; 1543 else 1544 Key = JA.getKind(); 1545 1546 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 1547 options::OPT_no_integrated_as, 1548 IsIntegratedAssemblerDefault()); 1549 1550 Tool *&T = Tools[Key]; 1551 if (!T) { 1552 switch (Key) { 1553 case Action::AssembleJobClass: { 1554 if (UseIntegratedAs) 1555 T = new tools::ClangAs(*this); 1556 else 1557 T = new tools::openbsd::Assemble(*this); 1558 break; 1559 } 1560 case Action::LinkJobClass: 1561 T = new tools::openbsd::Link(*this); break; 1562 default: 1563 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1564 } 1565 } 1566 1567 return *T; 1568} 1569 1570/// Bitrig - Bitrig tool chain which can call as(1) and ld(1) directly. 1571 1572Bitrig::Bitrig(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) 1573 : Generic_ELF(D, Triple, Args) { 1574 getFilePaths().push_back(getDriver().Dir + "/../lib"); 1575 getFilePaths().push_back("/usr/lib"); 1576} 1577 1578Tool &Bitrig::SelectTool(const Compilation &C, const JobAction &JA, 1579 const ActionList &Inputs) const { 1580 Action::ActionClass Key; 1581 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1582 Key = Action::AnalyzeJobClass; 1583 else 1584 Key = JA.getKind(); 1585 1586 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 1587 options::OPT_no_integrated_as, 1588 IsIntegratedAssemblerDefault()); 1589 1590 Tool *&T = Tools[Key]; 1591 if (!T) { 1592 switch (Key) { 1593 case Action::AssembleJobClass: { 1594 if (UseIntegratedAs) 1595 T = new tools::ClangAs(*this); 1596 else 1597 T = new tools::bitrig::Assemble(*this); 1598 break; 1599 } 1600 case Action::LinkJobClass: 1601 T = new tools::bitrig::Link(*this); break; 1602 default: 1603 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1604 } 1605 } 1606 1607 return *T; 1608} 1609 1610void Bitrig::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, 1611 ArgStringList &CC1Args) const { 1612 if (DriverArgs.hasArg(options::OPT_nostdlibinc) || 1613 DriverArgs.hasArg(options::OPT_nostdincxx)) 1614 return; 1615 1616 std::string Triple = getTriple().str(); 1617 if (Triple.substr(0, 5) == "amd64") 1618 Triple.replace(0, 5, "x86_64"); 1619 1620 addSystemInclude(DriverArgs, CC1Args, "/usr/include/c++/4.6.2"); 1621 addSystemInclude(DriverArgs, CC1Args, "/usr/include/c++/4.6.2/backward"); 1622 addSystemInclude(DriverArgs, CC1Args, "/usr/include/c++/4.6.2/" + Triple); 1623 1624} 1625 1626void Bitrig::AddCXXStdlibLibArgs(const ArgList &Args, 1627 ArgStringList &CmdArgs) const { 1628 CmdArgs.push_back("-lstdc++"); 1629} 1630 1631/// FreeBSD - FreeBSD tool chain which can call as(1) and ld(1) directly. 1632 1633FreeBSD::FreeBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) 1634 : Generic_ELF(D, Triple, Args) { 1635 1636 // When targeting 32-bit platforms, look for '/usr/lib32/crt1.o' and fall 1637 // back to '/usr/lib' if it doesn't exist. 1638 if ((Triple.getArch() == llvm::Triple::x86 || 1639 Triple.getArch() == llvm::Triple::ppc) && 1640 llvm::sys::fs::exists(getDriver().SysRoot + "/usr/lib32/crt1.o")) 1641 getFilePaths().push_back(getDriver().SysRoot + "/usr/lib32"); 1642 else 1643 getFilePaths().push_back(getDriver().SysRoot + "/usr/lib"); 1644} 1645 1646Tool &FreeBSD::SelectTool(const Compilation &C, const JobAction &JA, 1647 const ActionList &Inputs) const { 1648 Action::ActionClass Key; 1649 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1650 Key = Action::AnalyzeJobClass; 1651 else 1652 Key = JA.getKind(); 1653 1654 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 1655 options::OPT_no_integrated_as, 1656 IsIntegratedAssemblerDefault()); 1657 1658 Tool *&T = Tools[Key]; 1659 if (!T) { 1660 switch (Key) { 1661 case Action::AssembleJobClass: 1662 if (UseIntegratedAs) 1663 T = new tools::ClangAs(*this); 1664 else 1665 T = new tools::freebsd::Assemble(*this); 1666 break; 1667 case Action::LinkJobClass: 1668 T = new tools::freebsd::Link(*this); break; 1669 default: 1670 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1671 } 1672 } 1673 1674 return *T; 1675} 1676 1677/// NetBSD - NetBSD tool chain which can call as(1) and ld(1) directly. 1678 1679NetBSD::NetBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) 1680 : Generic_ELF(D, Triple, Args) { 1681 1682 if (getDriver().UseStdLib) { 1683 // When targeting a 32-bit platform, try the special directory used on 1684 // 64-bit hosts, and only fall back to the main library directory if that 1685 // doesn't work. 1686 // FIXME: It'd be nicer to test if this directory exists, but I'm not sure 1687 // what all logic is needed to emulate the '=' prefix here. 1688 if (Triple.getArch() == llvm::Triple::x86) 1689 getFilePaths().push_back("=/usr/lib/i386"); 1690 1691 getFilePaths().push_back("=/usr/lib"); 1692 } 1693} 1694 1695Tool &NetBSD::SelectTool(const Compilation &C, const JobAction &JA, 1696 const ActionList &Inputs) const { 1697 Action::ActionClass Key; 1698 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1699 Key = Action::AnalyzeJobClass; 1700 else 1701 Key = JA.getKind(); 1702 1703 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 1704 options::OPT_no_integrated_as, 1705 IsIntegratedAssemblerDefault()); 1706 1707 Tool *&T = Tools[Key]; 1708 if (!T) { 1709 switch (Key) { 1710 case Action::AssembleJobClass: 1711 if (UseIntegratedAs) 1712 T = new tools::ClangAs(*this); 1713 else 1714 T = new tools::netbsd::Assemble(*this); 1715 break; 1716 case Action::LinkJobClass: 1717 T = new tools::netbsd::Link(*this); 1718 break; 1719 default: 1720 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1721 } 1722 } 1723 1724 return *T; 1725} 1726 1727/// Minix - Minix tool chain which can call as(1) and ld(1) directly. 1728 1729Minix::Minix(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) 1730 : Generic_ELF(D, Triple, Args) { 1731 getFilePaths().push_back(getDriver().Dir + "/../lib"); 1732 getFilePaths().push_back("/usr/lib"); 1733} 1734 1735Tool &Minix::SelectTool(const Compilation &C, const JobAction &JA, 1736 const ActionList &Inputs) const { 1737 Action::ActionClass Key; 1738 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1739 Key = Action::AnalyzeJobClass; 1740 else 1741 Key = JA.getKind(); 1742 1743 Tool *&T = Tools[Key]; 1744 if (!T) { 1745 switch (Key) { 1746 case Action::AssembleJobClass: 1747 T = new tools::minix::Assemble(*this); break; 1748 case Action::LinkJobClass: 1749 T = new tools::minix::Link(*this); break; 1750 default: 1751 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1752 } 1753 } 1754 1755 return *T; 1756} 1757 1758/// AuroraUX - AuroraUX tool chain which can call as(1) and ld(1) directly. 1759 1760AuroraUX::AuroraUX(const Driver &D, const llvm::Triple& Triple, 1761 const ArgList &Args) 1762 : Generic_GCC(D, Triple, Args) { 1763 1764 getProgramPaths().push_back(getDriver().getInstalledDir()); 1765 if (getDriver().getInstalledDir() != getDriver().Dir) 1766 getProgramPaths().push_back(getDriver().Dir); 1767 1768 getFilePaths().push_back(getDriver().Dir + "/../lib"); 1769 getFilePaths().push_back("/usr/lib"); 1770 getFilePaths().push_back("/usr/sfw/lib"); 1771 getFilePaths().push_back("/opt/gcc4/lib"); 1772 getFilePaths().push_back("/opt/gcc4/lib/gcc/i386-pc-solaris2.11/4.2.4"); 1773 1774} 1775 1776Tool &AuroraUX::SelectTool(const Compilation &C, const JobAction &JA, 1777 const ActionList &Inputs) const { 1778 Action::ActionClass Key; 1779 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1780 Key = Action::AnalyzeJobClass; 1781 else 1782 Key = JA.getKind(); 1783 1784 Tool *&T = Tools[Key]; 1785 if (!T) { 1786 switch (Key) { 1787 case Action::AssembleJobClass: 1788 T = new tools::auroraux::Assemble(*this); break; 1789 case Action::LinkJobClass: 1790 T = new tools::auroraux::Link(*this); break; 1791 default: 1792 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1793 } 1794 } 1795 1796 return *T; 1797} 1798 1799/// Solaris - Solaris tool chain which can call as(1) and ld(1) directly. 1800 1801Solaris::Solaris(const Driver &D, const llvm::Triple& Triple, 1802 const ArgList &Args) 1803 : Generic_GCC(D, Triple, Args) { 1804 1805 getProgramPaths().push_back(getDriver().getInstalledDir()); 1806 if (getDriver().getInstalledDir() != getDriver().Dir) 1807 getProgramPaths().push_back(getDriver().Dir); 1808 1809 getFilePaths().push_back(getDriver().Dir + "/../lib"); 1810 getFilePaths().push_back("/usr/lib"); 1811} 1812 1813Tool &Solaris::SelectTool(const Compilation &C, const JobAction &JA, 1814 const ActionList &Inputs) const { 1815 Action::ActionClass Key; 1816 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 1817 Key = Action::AnalyzeJobClass; 1818 else 1819 Key = JA.getKind(); 1820 1821 Tool *&T = Tools[Key]; 1822 if (!T) { 1823 switch (Key) { 1824 case Action::AssembleJobClass: 1825 T = new tools::solaris::Assemble(*this); break; 1826 case Action::LinkJobClass: 1827 T = new tools::solaris::Link(*this); break; 1828 default: 1829 T = &Generic_GCC::SelectTool(C, JA, Inputs); 1830 } 1831 } 1832 1833 return *T; 1834} 1835 1836/// Linux toolchain (very bare-bones at the moment). 1837 1838enum LinuxDistro { 1839 ArchLinux, 1840 DebianLenny, 1841 DebianSqueeze, 1842 DebianWheezy, 1843 Exherbo, 1844 RHEL4, 1845 RHEL5, 1846 RHEL6, 1847 Fedora13, 1848 Fedora14, 1849 Fedora15, 1850 Fedora16, 1851 FedoraRawhide, 1852 OpenSuse11_3, 1853 OpenSuse11_4, 1854 OpenSuse12_1, 1855 OpenSuse12_2, 1856 UbuntuHardy, 1857 UbuntuIntrepid, 1858 UbuntuJaunty, 1859 UbuntuKarmic, 1860 UbuntuLucid, 1861 UbuntuMaverick, 1862 UbuntuNatty, 1863 UbuntuOneiric, 1864 UbuntuPrecise, 1865 UnknownDistro 1866}; 1867 1868static bool IsRedhat(enum LinuxDistro Distro) { 1869 return (Distro >= Fedora13 && Distro <= FedoraRawhide) || 1870 (Distro >= RHEL4 && Distro <= RHEL6); 1871} 1872 1873static bool IsOpenSuse(enum LinuxDistro Distro) { 1874 return Distro >= OpenSuse11_3 && Distro <= OpenSuse12_2; 1875} 1876 1877static bool IsDebian(enum LinuxDistro Distro) { 1878 return Distro >= DebianLenny && Distro <= DebianWheezy; 1879} 1880 1881static bool IsUbuntu(enum LinuxDistro Distro) { 1882 return Distro >= UbuntuHardy && Distro <= UbuntuPrecise; 1883} 1884 1885static LinuxDistro DetectLinuxDistro(llvm::Triple::ArchType Arch) { 1886 OwningPtr<llvm::MemoryBuffer> File; 1887 if (!llvm::MemoryBuffer::getFile("/etc/lsb-release", File)) { 1888 StringRef Data = File.get()->getBuffer(); 1889 SmallVector<StringRef, 8> Lines; 1890 Data.split(Lines, "\n"); 1891 LinuxDistro Version = UnknownDistro; 1892 for (unsigned i = 0, s = Lines.size(); i != s; ++i) 1893 if (Version == UnknownDistro && Lines[i].startswith("DISTRIB_CODENAME=")) 1894 Version = llvm::StringSwitch<LinuxDistro>(Lines[i].substr(17)) 1895 .Case("hardy", UbuntuHardy) 1896 .Case("intrepid", UbuntuIntrepid) 1897 .Case("jaunty", UbuntuJaunty) 1898 .Case("karmic", UbuntuKarmic) 1899 .Case("lucid", UbuntuLucid) 1900 .Case("maverick", UbuntuMaverick) 1901 .Case("natty", UbuntuNatty) 1902 .Case("oneiric", UbuntuOneiric) 1903 .Case("precise", UbuntuPrecise) 1904 .Default(UnknownDistro); 1905 return Version; 1906 } 1907 1908 if (!llvm::MemoryBuffer::getFile("/etc/redhat-release", File)) { 1909 StringRef Data = File.get()->getBuffer(); 1910 if (Data.startswith("Fedora release 16")) 1911 return Fedora16; 1912 else if (Data.startswith("Fedora release 15")) 1913 return Fedora15; 1914 else if (Data.startswith("Fedora release 14")) 1915 return Fedora14; 1916 else if (Data.startswith("Fedora release 13")) 1917 return Fedora13; 1918 else if (Data.startswith("Fedora release") && 1919 Data.find("Rawhide") != StringRef::npos) 1920 return FedoraRawhide; 1921 else if (Data.startswith("Red Hat Enterprise Linux") && 1922 Data.find("release 6") != StringRef::npos) 1923 return RHEL6; 1924 else if ((Data.startswith("Red Hat Enterprise Linux") || 1925 Data.startswith("CentOS")) && 1926 Data.find("release 5") != StringRef::npos) 1927 return RHEL5; 1928 else if ((Data.startswith("Red Hat Enterprise Linux") || 1929 Data.startswith("CentOS")) && 1930 Data.find("release 4") != StringRef::npos) 1931 return RHEL4; 1932 return UnknownDistro; 1933 } 1934 1935 if (!llvm::MemoryBuffer::getFile("/etc/debian_version", File)) { 1936 StringRef Data = File.get()->getBuffer(); 1937 if (Data[0] == '5') 1938 return DebianLenny; 1939 else if (Data.startswith("squeeze/sid") || Data[0] == '6') 1940 return DebianSqueeze; 1941 else if (Data.startswith("wheezy/sid") || Data[0] == '7') 1942 return DebianWheezy; 1943 return UnknownDistro; 1944 } 1945 1946 if (!llvm::MemoryBuffer::getFile("/etc/SuSE-release", File)) 1947 return llvm::StringSwitch<LinuxDistro>(File.get()->getBuffer()) 1948 .StartsWith("openSUSE 11.3", OpenSuse11_3) 1949 .StartsWith("openSUSE 11.4", OpenSuse11_4) 1950 .StartsWith("openSUSE 12.1", OpenSuse12_1) 1951 .StartsWith("openSUSE 12.2", OpenSuse12_2) 1952 .Default(UnknownDistro); 1953 1954 bool Exists; 1955 if (!llvm::sys::fs::exists("/etc/exherbo-release", Exists) && Exists) 1956 return Exherbo; 1957 1958 if (!llvm::sys::fs::exists("/etc/arch-release", Exists) && Exists) 1959 return ArchLinux; 1960 1961 return UnknownDistro; 1962} 1963 1964/// \brief Get our best guess at the multiarch triple for a target. 1965/// 1966/// Debian-based systems are starting to use a multiarch setup where they use 1967/// a target-triple directory in the library and header search paths. 1968/// Unfortunately, this triple does not align with the vanilla target triple, 1969/// so we provide a rough mapping here. 1970static std::string getMultiarchTriple(const llvm::Triple TargetTriple, 1971 StringRef SysRoot) { 1972 // For most architectures, just use whatever we have rather than trying to be 1973 // clever. 1974 switch (TargetTriple.getArch()) { 1975 default: 1976 return TargetTriple.str(); 1977 1978 // We use the existence of '/lib/<triple>' as a directory to detect some 1979 // common linux triples that don't quite match the Clang triple for both 1980 // 32-bit and 64-bit targets. Multiarch fixes its install triples to these 1981 // regardless of what the actual target triple is. 1982 case llvm::Triple::arm: 1983 case llvm::Triple::thumb: 1984 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) { 1985 if (llvm::sys::fs::exists(SysRoot + "/lib/arm-linux-gnueabihf")) 1986 return "arm-linux-gnueabihf"; 1987 } else { 1988 if (llvm::sys::fs::exists(SysRoot + "/lib/arm-linux-gnueabi")) 1989 return "arm-linux-gnueabi"; 1990 } 1991 return TargetTriple.str(); 1992 case llvm::Triple::x86: 1993 if (llvm::sys::fs::exists(SysRoot + "/lib/i386-linux-gnu")) 1994 return "i386-linux-gnu"; 1995 return TargetTriple.str(); 1996 case llvm::Triple::x86_64: 1997 if (llvm::sys::fs::exists(SysRoot + "/lib/x86_64-linux-gnu")) 1998 return "x86_64-linux-gnu"; 1999 return TargetTriple.str(); 2000 case llvm::Triple::mips: 2001 if (llvm::sys::fs::exists(SysRoot + "/lib/mips-linux-gnu")) 2002 return "mips-linux-gnu"; 2003 return TargetTriple.str(); 2004 case llvm::Triple::mipsel: 2005 if (llvm::sys::fs::exists(SysRoot + "/lib/mipsel-linux-gnu")) 2006 return "mipsel-linux-gnu"; 2007 return TargetTriple.str(); 2008 case llvm::Triple::ppc: 2009 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc-linux-gnu")) 2010 return "powerpc-linux-gnu"; 2011 return TargetTriple.str(); 2012 case llvm::Triple::ppc64: 2013 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc64-linux-gnu")) 2014 return "powerpc64-linux-gnu"; 2015 return TargetTriple.str(); 2016 } 2017} 2018 2019static void addPathIfExists(Twine Path, ToolChain::path_list &Paths) { 2020 if (llvm::sys::fs::exists(Path)) Paths.push_back(Path.str()); 2021} 2022 2023Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) 2024 : Generic_ELF(D, Triple, Args) { 2025 llvm::Triple::ArchType Arch = Triple.getArch(); 2026 const std::string &SysRoot = getDriver().SysRoot; 2027 2028 // OpenSuse stores the linker with the compiler, add that to the search 2029 // path. 2030 ToolChain::path_list &PPaths = getProgramPaths(); 2031 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" + 2032 GCCInstallation.getTriple().str() + "/bin").str()); 2033 2034 Linker = GetProgramPath("ld"); 2035 2036 LinuxDistro Distro = DetectLinuxDistro(Arch); 2037 2038 if (IsOpenSuse(Distro) || IsUbuntu(Distro)) { 2039 ExtraOpts.push_back("-z"); 2040 ExtraOpts.push_back("relro"); 2041 } 2042 2043 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb) 2044 ExtraOpts.push_back("-X"); 2045 2046 const bool IsMips = Arch == llvm::Triple::mips || 2047 Arch == llvm::Triple::mipsel || 2048 Arch == llvm::Triple::mips64 || 2049 Arch == llvm::Triple::mips64el; 2050 2051 const bool IsAndroid = Triple.getEnvironment() == llvm::Triple::ANDROIDEABI; 2052 2053 // Do not use 'gnu' hash style for Mips targets because .gnu.hash 2054 // and the MIPS ABI require .dynsym to be sorted in different ways. 2055 // .gnu.hash needs symbols to be grouped by hash code whereas the MIPS 2056 // ABI requires a mapping between the GOT and the symbol table. 2057 // Android loader does not support .gnu.hash. 2058 if (!IsMips && !IsAndroid) { 2059 if (IsRedhat(Distro) || IsOpenSuse(Distro) || 2060 (IsUbuntu(Distro) && Distro >= UbuntuMaverick)) 2061 ExtraOpts.push_back("--hash-style=gnu"); 2062 2063 if (IsDebian(Distro) || IsOpenSuse(Distro) || Distro == UbuntuLucid || 2064 Distro == UbuntuJaunty || Distro == UbuntuKarmic) 2065 ExtraOpts.push_back("--hash-style=both"); 2066 } 2067 2068 if (IsRedhat(Distro)) 2069 ExtraOpts.push_back("--no-add-needed"); 2070 2071 if (Distro == DebianSqueeze || Distro == DebianWheezy || 2072 IsOpenSuse(Distro) || 2073 (IsRedhat(Distro) && Distro != RHEL4 && Distro != RHEL5) || 2074 (IsUbuntu(Distro) && Distro >= UbuntuKarmic)) 2075 ExtraOpts.push_back("--build-id"); 2076 2077 if (IsOpenSuse(Distro)) 2078 ExtraOpts.push_back("--enable-new-dtags"); 2079 2080 // The selection of paths to try here is designed to match the patterns which 2081 // the GCC driver itself uses, as this is part of the GCC-compatible driver. 2082 // This was determined by running GCC in a fake filesystem, creating all 2083 // possible permutations of these directories, and seeing which ones it added 2084 // to the link paths. 2085 path_list &Paths = getFilePaths(); 2086 2087 const std::string Multilib = Triple.isArch32Bit() ? "lib32" : "lib64"; 2088 const std::string MultiarchTriple = getMultiarchTriple(Triple, SysRoot); 2089 2090 // Add the multilib suffixed paths where they are available. 2091 if (GCCInstallation.isValid()) { 2092 const llvm::Triple &GCCTriple = GCCInstallation.getTriple(); 2093 const std::string &LibPath = GCCInstallation.getParentLibPath(); 2094 addPathIfExists((GCCInstallation.getInstallPath() + 2095 GCCInstallation.getMultiarchSuffix()), 2096 Paths); 2097 2098 // If the GCC installation we found is inside of the sysroot, we want to 2099 // prefer libraries installed in the parent prefix of the GCC installation. 2100 // It is important to *not* use these paths when the GCC installation is 2101 // outside of the system root as that can pick up unintended libraries. 2102 // This usually happens when there is an external cross compiler on the 2103 // host system, and a more minimal sysroot available that is the target of 2104 // the cross. 2105 if (StringRef(LibPath).startswith(SysRoot)) { 2106 addPathIfExists(LibPath + "/../" + GCCTriple.str() + "/lib/../" + Multilib, 2107 Paths); 2108 addPathIfExists(LibPath + "/" + MultiarchTriple, Paths); 2109 addPathIfExists(LibPath + "/../" + Multilib, Paths); 2110 } 2111 } 2112 addPathIfExists(SysRoot + "/lib/" + MultiarchTriple, Paths); 2113 addPathIfExists(SysRoot + "/lib/../" + Multilib, Paths); 2114 addPathIfExists(SysRoot + "/usr/lib/" + MultiarchTriple, Paths); 2115 addPathIfExists(SysRoot + "/usr/lib/../" + Multilib, Paths); 2116 2117 // Try walking via the GCC triple path in case of multiarch GCC 2118 // installations with strange symlinks. 2119 if (GCCInstallation.isValid()) 2120 addPathIfExists(SysRoot + "/usr/lib/" + GCCInstallation.getTriple().str() + 2121 "/../../" + Multilib, Paths); 2122 2123 // Add the non-multilib suffixed paths (if potentially different). 2124 if (GCCInstallation.isValid()) { 2125 const std::string &LibPath = GCCInstallation.getParentLibPath(); 2126 const llvm::Triple &GCCTriple = GCCInstallation.getTriple(); 2127 if (!GCCInstallation.getMultiarchSuffix().empty()) 2128 addPathIfExists(GCCInstallation.getInstallPath(), Paths); 2129 2130 if (StringRef(LibPath).startswith(SysRoot)) { 2131 addPathIfExists(LibPath + "/../" + GCCTriple.str() + "/lib", Paths); 2132 addPathIfExists(LibPath, Paths); 2133 } 2134 } 2135 addPathIfExists(SysRoot + "/lib", Paths); 2136 addPathIfExists(SysRoot + "/usr/lib", Paths); 2137} 2138 2139bool Linux::HasNativeLLVMSupport() const { 2140 return true; 2141} 2142 2143Tool &Linux::SelectTool(const Compilation &C, const JobAction &JA, 2144 const ActionList &Inputs) const { 2145 Action::ActionClass Key; 2146 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 2147 Key = Action::AnalyzeJobClass; 2148 else 2149 Key = JA.getKind(); 2150 2151 bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as, 2152 options::OPT_no_integrated_as, 2153 IsIntegratedAssemblerDefault()); 2154 2155 Tool *&T = Tools[Key]; 2156 if (!T) { 2157 switch (Key) { 2158 case Action::AssembleJobClass: 2159 if (UseIntegratedAs) 2160 T = new tools::ClangAs(*this); 2161 else 2162 T = new tools::linuxtools::Assemble(*this); 2163 break; 2164 case Action::LinkJobClass: 2165 T = new tools::linuxtools::Link(*this); break; 2166 default: 2167 T = &Generic_GCC::SelectTool(C, JA, Inputs); 2168 } 2169 } 2170 2171 return *T; 2172} 2173 2174void Linux::addClangTargetOptions(ArgStringList &CC1Args) const { 2175 const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion(); 2176 if (V >= Generic_GCC::GCCVersion::Parse("4.7.0")) 2177 CC1Args.push_back("-fuse-init-array"); 2178} 2179 2180void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs, 2181 ArgStringList &CC1Args) const { 2182 const Driver &D = getDriver(); 2183 2184 if (DriverArgs.hasArg(options::OPT_nostdinc)) 2185 return; 2186 2187 if (!DriverArgs.hasArg(options::OPT_nostdlibinc)) 2188 addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/local/include"); 2189 2190 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { 2191 llvm::sys::Path P(D.ResourceDir); 2192 P.appendComponent("include"); 2193 addSystemInclude(DriverArgs, CC1Args, P.str()); 2194 } 2195 2196 if (DriverArgs.hasArg(options::OPT_nostdlibinc)) 2197 return; 2198 2199 // Check for configure-time C include directories. 2200 StringRef CIncludeDirs(C_INCLUDE_DIRS); 2201 if (CIncludeDirs != "") { 2202 SmallVector<StringRef, 5> dirs; 2203 CIncludeDirs.split(dirs, ":"); 2204 for (SmallVectorImpl<StringRef>::iterator I = dirs.begin(), E = dirs.end(); 2205 I != E; ++I) { 2206 StringRef Prefix = llvm::sys::path::is_absolute(*I) ? D.SysRoot : ""; 2207 addExternCSystemInclude(DriverArgs, CC1Args, Prefix + *I); 2208 } 2209 return; 2210 } 2211 2212 // Lacking those, try to detect the correct set of system includes for the 2213 // target triple. 2214 2215 // Implement generic Debian multiarch support. 2216 const StringRef X86_64MultiarchIncludeDirs[] = { 2217 "/usr/include/x86_64-linux-gnu", 2218 2219 // FIXME: These are older forms of multiarch. It's not clear that they're 2220 // in use in any released version of Debian, so we should consider 2221 // removing them. 2222 "/usr/include/i686-linux-gnu/64", 2223 "/usr/include/i486-linux-gnu/64" 2224 }; 2225 const StringRef X86MultiarchIncludeDirs[] = { 2226 "/usr/include/i386-linux-gnu", 2227 2228 // FIXME: These are older forms of multiarch. It's not clear that they're 2229 // in use in any released version of Debian, so we should consider 2230 // removing them. 2231 "/usr/include/x86_64-linux-gnu/32", 2232 "/usr/include/i686-linux-gnu", 2233 "/usr/include/i486-linux-gnu" 2234 }; 2235 const StringRef ARMMultiarchIncludeDirs[] = { 2236 "/usr/include/arm-linux-gnueabi" 2237 }; 2238 const StringRef ARMHFMultiarchIncludeDirs[] = { 2239 "/usr/include/arm-linux-gnueabihf" 2240 }; 2241 const StringRef MIPSMultiarchIncludeDirs[] = { 2242 "/usr/include/mips-linux-gnu" 2243 }; 2244 const StringRef MIPSELMultiarchIncludeDirs[] = { 2245 "/usr/include/mipsel-linux-gnu" 2246 }; 2247 const StringRef PPCMultiarchIncludeDirs[] = { 2248 "/usr/include/powerpc-linux-gnu" 2249 }; 2250 const StringRef PPC64MultiarchIncludeDirs[] = { 2251 "/usr/include/powerpc64-linux-gnu" 2252 }; 2253 ArrayRef<StringRef> MultiarchIncludeDirs; 2254 if (getTriple().getArch() == llvm::Triple::x86_64) { 2255 MultiarchIncludeDirs = X86_64MultiarchIncludeDirs; 2256 } else if (getTriple().getArch() == llvm::Triple::x86) { 2257 MultiarchIncludeDirs = X86MultiarchIncludeDirs; 2258 } else if (getTriple().getArch() == llvm::Triple::arm) { 2259 if (getTriple().getEnvironment() == llvm::Triple::GNUEABIHF) 2260 MultiarchIncludeDirs = ARMHFMultiarchIncludeDirs; 2261 else 2262 MultiarchIncludeDirs = ARMMultiarchIncludeDirs; 2263 } else if (getTriple().getArch() == llvm::Triple::mips) { 2264 MultiarchIncludeDirs = MIPSMultiarchIncludeDirs; 2265 } else if (getTriple().getArch() == llvm::Triple::mipsel) { 2266 MultiarchIncludeDirs = MIPSELMultiarchIncludeDirs; 2267 } else if (getTriple().getArch() == llvm::Triple::ppc) { 2268 MultiarchIncludeDirs = PPCMultiarchIncludeDirs; 2269 } else if (getTriple().getArch() == llvm::Triple::ppc64) { 2270 MultiarchIncludeDirs = PPC64MultiarchIncludeDirs; 2271 } 2272 for (ArrayRef<StringRef>::iterator I = MultiarchIncludeDirs.begin(), 2273 E = MultiarchIncludeDirs.end(); 2274 I != E; ++I) { 2275 if (llvm::sys::fs::exists(D.SysRoot + *I)) { 2276 addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + *I); 2277 break; 2278 } 2279 } 2280 2281 if (getTriple().getOS() == llvm::Triple::RTEMS) 2282 return; 2283 2284 // Add an include of '/include' directly. This isn't provided by default by 2285 // system GCCs, but is often used with cross-compiling GCCs, and harmless to 2286 // add even when Clang is acting as-if it were a system compiler. 2287 addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/include"); 2288 2289 addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/include"); 2290} 2291 2292/// \brief Helper to add the thre variant paths for a libstdc++ installation. 2293/*static*/ bool Linux::addLibStdCXXIncludePaths(Twine Base, Twine TargetArchDir, 2294 const ArgList &DriverArgs, 2295 ArgStringList &CC1Args) { 2296 if (!llvm::sys::fs::exists(Base)) 2297 return false; 2298 addSystemInclude(DriverArgs, CC1Args, Base); 2299 addSystemInclude(DriverArgs, CC1Args, Base + "/" + TargetArchDir); 2300 addSystemInclude(DriverArgs, CC1Args, Base + "/backward"); 2301 return true; 2302} 2303 2304void Linux::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, 2305 ArgStringList &CC1Args) const { 2306 if (DriverArgs.hasArg(options::OPT_nostdlibinc) || 2307 DriverArgs.hasArg(options::OPT_nostdincxx)) 2308 return; 2309 2310 // Check if libc++ has been enabled and provide its include paths if so. 2311 if (GetCXXStdlibType(DriverArgs) == ToolChain::CST_Libcxx) { 2312 // libc++ is always installed at a fixed path on Linux currently. 2313 addSystemInclude(DriverArgs, CC1Args, 2314 getDriver().SysRoot + "/usr/include/c++/v1"); 2315 return; 2316 } 2317 2318 // We need a detected GCC installation on Linux to provide libstdc++'s 2319 // headers. We handled the libc++ case above. 2320 if (!GCCInstallation.isValid()) 2321 return; 2322 2323 // By default, look for the C++ headers in an include directory adjacent to 2324 // the lib directory of the GCC installation. Note that this is expect to be 2325 // equivalent to '/usr/include/c++/X.Y' in almost all cases. 2326 StringRef LibDir = GCCInstallation.getParentLibPath(); 2327 StringRef InstallDir = GCCInstallation.getInstallPath(); 2328 StringRef Version = GCCInstallation.getVersion().Text; 2329 if (!addLibStdCXXIncludePaths(LibDir + "/../include/c++/" + Version, 2330 (GCCInstallation.getTriple().str() + 2331 GCCInstallation.getMultiarchSuffix()), 2332 DriverArgs, CC1Args)) { 2333 // Gentoo is weird and places its headers inside the GCC install, so if the 2334 // first attempt to find the headers fails, try this pattern. 2335 addLibStdCXXIncludePaths(InstallDir + "/include/g++-v4", 2336 (GCCInstallation.getTriple().str() + 2337 GCCInstallation.getMultiarchSuffix()), 2338 DriverArgs, CC1Args); 2339 } 2340} 2341 2342/// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly. 2343 2344DragonFly::DragonFly(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) 2345 : Generic_ELF(D, Triple, Args) { 2346 2347 // Path mangling to find libexec 2348 getProgramPaths().push_back(getDriver().getInstalledDir()); 2349 if (getDriver().getInstalledDir() != getDriver().Dir) 2350 getProgramPaths().push_back(getDriver().Dir); 2351 2352 getFilePaths().push_back(getDriver().Dir + "/../lib"); 2353 getFilePaths().push_back("/usr/lib"); 2354 getFilePaths().push_back("/usr/lib/gcc41"); 2355} 2356 2357Tool &DragonFly::SelectTool(const Compilation &C, const JobAction &JA, 2358 const ActionList &Inputs) const { 2359 Action::ActionClass Key; 2360 if (getDriver().ShouldUseClangCompiler(C, JA, getTriple())) 2361 Key = Action::AnalyzeJobClass; 2362 else 2363 Key = JA.getKind(); 2364 2365 Tool *&T = Tools[Key]; 2366 if (!T) { 2367 switch (Key) { 2368 case Action::AssembleJobClass: 2369 T = new tools::dragonfly::Assemble(*this); break; 2370 case Action::LinkJobClass: 2371 T = new tools::dragonfly::Link(*this); break; 2372 default: 2373 T = &Generic_GCC::SelectTool(C, JA, Inputs); 2374 } 2375 } 2376 2377 return *T; 2378} 2379