1 //===--- ToolChains.cpp - ToolChain Implementations -----------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "ToolChains.h"
11 #include "clang/Basic/ObjCRuntime.h"
12 #include "clang/Basic/Version.h"
13 #include "clang/Driver/Compilation.h"
14 #include "clang/Driver/Driver.h"
15 #include "clang/Driver/DriverDiagnostic.h"
16 #include "clang/Driver/Options.h"
17 #include "clang/Driver/SanitizerArgs.h"
18 #include "llvm/ADT/STLExtras.h"
19 #include "llvm/ADT/SmallString.h"
20 #include "llvm/ADT/StringExtras.h"
21 #include "llvm/ADT/StringSwitch.h"
22 #include "llvm/Option/Arg.h"
23 #include "llvm/Option/ArgList.h"
24 #include "llvm/Option/OptTable.h"
25 #include "llvm/Option/Option.h"
26 #include "llvm/Support/ErrorHandling.h"
27 #include "llvm/Support/FileSystem.h"
28 #include "llvm/Support/MemoryBuffer.h"
29 #include "llvm/Support/Path.h"
30 #include "llvm/Support/raw_ostream.h"
31 #include "llvm/Support/system_error.h"
32 #include "llvm/Support/Program.h"
34 // FIXME: This needs to be listed last until we fix the broken include guards
35 // in these files and the LLVM config.h files.
36 #include "clang/Config/config.h" // for GCC_INSTALL_PREFIX
38 #include <cstdlib> // ::getenv
40 using namespace clang::driver;
41 using namespace clang::driver::toolchains;
42 using namespace clang;
43 using namespace llvm::opt;
45 /// Darwin - Darwin tool chain for i386 and x86_64.
47 Darwin::Darwin(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
48 : ToolChain(D, Triple, Args), TargetInitialized(false)
50 // Compute the initial Darwin version from the triple
51 unsigned Major, Minor, Micro;
52 if (!Triple.getMacOSXVersion(Major, Minor, Micro))
53 getDriver().Diag(diag::err_drv_invalid_darwin_version) <<
55 llvm::raw_string_ostream(MacosxVersionMin)
56 << Major << '.' << Minor << '.' << Micro;
58 // FIXME: DarwinVersion is only used to find GCC's libexec directory.
59 // It should be removed when we stop supporting that.
60 DarwinVersion[0] = Minor + 4;
61 DarwinVersion[1] = Micro;
64 // Compute the initial iOS version from the triple
65 Triple.getiOSVersion(Major, Minor, Micro);
66 llvm::raw_string_ostream(iOSVersionMin)
67 << Major << '.' << Minor << '.' << Micro;
70 types::ID Darwin::LookupTypeForExtension(const char *Ext) const {
71 types::ID Ty = types::lookupTypeForExtension(Ext);
73 // Darwin always preprocesses assembly files (unless -x is used explicitly).
74 if (Ty == types::TY_PP_Asm)
80 bool Darwin::HasNativeLLVMSupport() const {
84 /// Darwin provides an ARC runtime starting in MacOS X 10.7 and iOS 5.0.
85 ObjCRuntime Darwin::getDefaultObjCRuntime(bool isNonFragile) const {
86 if (isTargetIPhoneOS())
87 return ObjCRuntime(ObjCRuntime::iOS, TargetVersion);
89 return ObjCRuntime(ObjCRuntime::MacOSX, TargetVersion);
90 return ObjCRuntime(ObjCRuntime::FragileMacOSX, TargetVersion);
93 /// Darwin provides a blocks runtime starting in MacOS X 10.6 and iOS 3.2.
94 bool Darwin::hasBlocksRuntime() const {
95 if (isTargetIPhoneOS())
96 return !isIPhoneOSVersionLT(3, 2);
98 return !isMacosxVersionLT(10, 6);
101 static const char *GetArmArchForMArch(StringRef Value) {
102 return llvm::StringSwitch<const char*>(Value)
103 .Case("armv6k", "armv6")
104 .Case("armv6m", "armv6m")
105 .Case("armv5tej", "armv5")
106 .Case("xscale", "xscale")
107 .Case("armv4t", "armv4t")
108 .Case("armv7", "armv7")
109 .Cases("armv7a", "armv7-a", "armv7")
110 .Cases("armv7r", "armv7-r", "armv7")
111 .Cases("armv7em", "armv7e-m", "armv7em")
112 .Cases("armv7f", "armv7-f", "armv7f")
113 .Cases("armv7k", "armv7-k", "armv7k")
114 .Cases("armv7m", "armv7-m", "armv7m")
115 .Cases("armv7s", "armv7-s", "armv7s")
119 static const char *GetArmArchForMCpu(StringRef Value) {
120 return llvm::StringSwitch<const char *>(Value)
121 .Cases("arm9e", "arm946e-s", "arm966e-s", "arm968e-s", "arm926ej-s","armv5")
122 .Cases("arm10e", "arm10tdmi", "armv5")
123 .Cases("arm1020t", "arm1020e", "arm1022e", "arm1026ej-s", "armv5")
124 .Case("xscale", "xscale")
125 .Cases("arm1136j-s", "arm1136jf-s", "arm1176jz-s", "arm1176jzf-s", "armv6")
126 .Case("cortex-m0", "armv6m")
127 .Cases("cortex-a5", "cortex-a7", "cortex-a8", "armv7")
128 .Cases("cortex-a9", "cortex-a12", "cortex-a15", "armv7")
129 .Cases("cortex-r4", "cortex-r5", "armv7r")
130 .Case("cortex-a9-mp", "armv7f")
131 .Case("cortex-m3", "armv7m")
132 .Case("cortex-m4", "armv7em")
133 .Case("swift", "armv7s")
137 StringRef Darwin::getDarwinArchName(const ArgList &Args) const {
138 switch (getTriple().getArch()) {
140 return getArchName();
142 case llvm::Triple::thumb:
143 case llvm::Triple::arm: {
144 if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
145 if (const char *Arch = GetArmArchForMArch(A->getValue()))
148 if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
149 if (const char *Arch = GetArmArchForMCpu(A->getValue()))
160 std::string Darwin::ComputeEffectiveClangTriple(const ArgList &Args,
161 types::ID InputType) const {
162 llvm::Triple Triple(ComputeLLVMTriple(Args, InputType));
164 // If the target isn't initialized (e.g., an unknown Darwin platform, return
165 // the default triple).
166 if (!isTargetInitialized())
167 return Triple.getTriple();
169 if (Triple.getArchName() == "thumbv6m" ||
170 Triple.getArchName() == "thumbv7m" ||
171 Triple.getArchName() == "thumbv7em") {
172 // OS is ios or macosx unless it's the v6m or v7m.
173 Triple.setOS(llvm::Triple::Darwin);
174 Triple.setEnvironment(llvm::Triple::EABI);
177 Str += isTargetIPhoneOS() ? "ios" : "macosx";
178 Str += getTargetVersion().getAsString();
179 Triple.setOSName(Str);
182 return Triple.getTriple();
185 void Generic_ELF::anchor() {}
187 Tool *Darwin::getTool(Action::ActionClass AC) const {
189 case Action::LipoJobClass:
191 Lipo.reset(new tools::darwin::Lipo(*this));
193 case Action::DsymutilJobClass:
195 Dsymutil.reset(new tools::darwin::Dsymutil(*this));
196 return Dsymutil.get();
197 case Action::VerifyJobClass:
199 VerifyDebug.reset(new tools::darwin::VerifyDebug(*this));
200 return VerifyDebug.get();
202 return ToolChain::getTool(AC);
206 Tool *Darwin::buildLinker() const {
207 return new tools::darwin::Link(*this);
210 Tool *Darwin::buildAssembler() const {
211 return new tools::darwin::Assemble(*this);
214 DarwinClang::DarwinClang(const Driver &D, const llvm::Triple& Triple,
216 : Darwin(D, Triple, Args)
218 getProgramPaths().push_back(getDriver().getInstalledDir());
219 if (getDriver().getInstalledDir() != getDriver().Dir)
220 getProgramPaths().push_back(getDriver().Dir);
222 // We expect 'as', 'ld', etc. to be adjacent to our install dir.
223 getProgramPaths().push_back(getDriver().getInstalledDir());
224 if (getDriver().getInstalledDir() != getDriver().Dir)
225 getProgramPaths().push_back(getDriver().Dir);
228 void DarwinClang::AddLinkARCArgs(const ArgList &Args,
229 ArgStringList &CmdArgs) const {
231 CmdArgs.push_back("-force_load");
232 SmallString<128> P(getDriver().ClangExecutable);
233 llvm::sys::path::remove_filename(P); // 'clang'
234 llvm::sys::path::remove_filename(P); // 'bin'
235 llvm::sys::path::append(P, "lib", "arc", "libarclite_");
236 // Mash in the platform.
237 if (isTargetIOSSimulator())
238 P += "iphonesimulator";
239 else if (isTargetIPhoneOS())
245 CmdArgs.push_back(Args.MakeArgString(P));
248 void DarwinClang::AddLinkRuntimeLib(const ArgList &Args,
249 ArgStringList &CmdArgs,
250 const char *DarwinStaticLib,
251 bool AlwaysLink) const {
252 SmallString<128> P(getDriver().ResourceDir);
253 llvm::sys::path::append(P, "lib", "darwin", DarwinStaticLib);
255 // For now, allow missing resource libraries to support developers who may
256 // not have compiler-rt checked out or integrated into their build (unless
257 // we explicitly force linking with this library).
258 if (AlwaysLink || llvm::sys::fs::exists(P.str()))
259 CmdArgs.push_back(Args.MakeArgString(P.str()));
262 void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args,
263 ArgStringList &CmdArgs) const {
264 // Darwin only supports the compiler-rt based runtime libraries.
265 switch (GetRuntimeLibType(Args)) {
266 case ToolChain::RLT_CompilerRT:
269 getDriver().Diag(diag::err_drv_unsupported_rtlib_for_platform)
270 << Args.getLastArg(options::OPT_rtlib_EQ)->getValue() << "darwin";
274 // Darwin doesn't support real static executables, don't link any runtime
275 // libraries with -static.
276 if (Args.hasArg(options::OPT_static) ||
277 Args.hasArg(options::OPT_fapple_kext) ||
278 Args.hasArg(options::OPT_mkernel))
281 // Reject -static-libgcc for now, we can deal with this when and if someone
282 // cares. This is useful in situations where someone wants to statically link
283 // something like libstdc++, and needs its runtime support routines.
284 if (const Arg *A = Args.getLastArg(options::OPT_static_libgcc)) {
285 getDriver().Diag(diag::err_drv_unsupported_opt)
286 << A->getAsString(Args);
290 // If we are building profile support, link that library in.
291 if (Args.hasArg(options::OPT_fprofile_arcs) ||
292 Args.hasArg(options::OPT_fprofile_generate) ||
293 Args.hasArg(options::OPT_fcreate_profile) ||
294 Args.hasArg(options::OPT_coverage)) {
295 // Select the appropriate runtime library for the target.
296 if (isTargetIPhoneOS()) {
297 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.profile_ios.a");
299 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.profile_osx.a");
303 const SanitizerArgs &Sanitize = getSanitizerArgs();
305 // Add Ubsan runtime library, if required.
306 if (Sanitize.needsUbsanRt()) {
307 // FIXME: Move this check to SanitizerArgs::filterUnsupportedKinds.
308 if (isTargetIPhoneOS()) {
309 getDriver().Diag(diag::err_drv_clang_unsupported_per_platform)
310 << "-fsanitize=undefined";
312 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.ubsan_osx.a", true);
314 // The Ubsan runtime library requires C++.
315 AddCXXStdlibLibArgs(Args, CmdArgs);
319 // Add ASAN runtime library, if required. Dynamic libraries and bundles
320 // should not be linked with the runtime library.
321 if (Sanitize.needsAsanRt()) {
322 // FIXME: Move this check to SanitizerArgs::filterUnsupportedKinds.
323 if (isTargetIPhoneOS() && !isTargetIOSSimulator()) {
324 getDriver().Diag(diag::err_drv_clang_unsupported_per_platform)
325 << "-fsanitize=address";
327 if (!Args.hasArg(options::OPT_dynamiclib) &&
328 !Args.hasArg(options::OPT_bundle)) {
329 // The ASAN runtime library requires C++.
330 AddCXXStdlibLibArgs(Args, CmdArgs);
332 if (isTargetMacOS()) {
333 AddLinkRuntimeLib(Args, CmdArgs,
334 "libclang_rt.asan_osx_dynamic.dylib",
337 if (isTargetIOSSimulator()) {
338 AddLinkRuntimeLib(Args, CmdArgs,
339 "libclang_rt.asan_iossim_dynamic.dylib",
346 // Otherwise link libSystem, then the dynamic runtime library, and finally any
347 // target specific static runtime library.
348 CmdArgs.push_back("-lSystem");
350 // Select the dynamic runtime library and the target specific static library.
351 if (isTargetIPhoneOS()) {
352 // If we are compiling as iOS / simulator, don't attempt to link libgcc_s.1,
353 // it never went into the SDK.
354 // Linking against libgcc_s.1 isn't needed for iOS 5.0+
355 if (isIPhoneOSVersionLT(5, 0) && !isTargetIOSSimulator())
356 CmdArgs.push_back("-lgcc_s.1");
358 // We currently always need a static runtime library for iOS.
359 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.ios.a");
361 // The dynamic runtime library was merged with libSystem for 10.6 and
362 // beyond; only 10.4 and 10.5 need an additional runtime library.
363 if (isMacosxVersionLT(10, 5))
364 CmdArgs.push_back("-lgcc_s.10.4");
365 else if (isMacosxVersionLT(10, 6))
366 CmdArgs.push_back("-lgcc_s.10.5");
368 // For OS X, we thought we would only need a static runtime library when
369 // targeting 10.4, to provide versions of the static functions which were
370 // omitted from 10.4.dylib.
372 // Unfortunately, that turned out to not be true, because Darwin system
373 // headers can still use eprintf on i386, and it is not exported from
374 // libSystem. Therefore, we still must provide a runtime library just for
375 // the tiny tiny handful of projects that *might* use that symbol.
376 if (isMacosxVersionLT(10, 5)) {
377 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.10.4.a");
379 if (getTriple().getArch() == llvm::Triple::x86)
380 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.eprintf.a");
381 AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.osx.a");
386 void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
387 const OptTable &Opts = getDriver().getOpts();
389 // Support allowing the SDKROOT environment variable used by xcrun and other
390 // Xcode tools to define the default sysroot, by making it the default for
392 if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) {
393 // Warn if the path does not exist.
394 if (!llvm::sys::fs::exists(A->getValue()))
395 getDriver().Diag(clang::diag::warn_missing_sysroot) << A->getValue();
397 if (char *env = ::getenv("SDKROOT")) {
398 // We only use this value as the default if it is an absolute path,
399 // exists, and it is not the root path.
400 if (llvm::sys::path::is_absolute(env) && llvm::sys::fs::exists(env) &&
401 StringRef(env) != "/") {
402 Args.append(Args.MakeSeparateArg(
403 0, Opts.getOption(options::OPT_isysroot), env));
408 Arg *OSXVersion = Args.getLastArg(options::OPT_mmacosx_version_min_EQ);
409 Arg *iOSVersion = Args.getLastArg(options::OPT_miphoneos_version_min_EQ);
410 Arg *iOSSimVersion = Args.getLastArg(
411 options::OPT_mios_simulator_version_min_EQ);
413 if (OSXVersion && (iOSVersion || iOSSimVersion)) {
414 getDriver().Diag(diag::err_drv_argument_not_allowed_with)
415 << OSXVersion->getAsString(Args)
416 << (iOSVersion ? iOSVersion : iOSSimVersion)->getAsString(Args);
417 iOSVersion = iOSSimVersion = 0;
418 } else if (iOSVersion && iOSSimVersion) {
419 getDriver().Diag(diag::err_drv_argument_not_allowed_with)
420 << iOSVersion->getAsString(Args)
421 << iOSSimVersion->getAsString(Args);
423 } else if (!OSXVersion && !iOSVersion && !iOSSimVersion) {
424 // If no deployment target was specified on the command line, check for
425 // environment defines.
428 StringRef iOSSimTarget;
429 if (char *env = ::getenv("MACOSX_DEPLOYMENT_TARGET"))
431 if (char *env = ::getenv("IPHONEOS_DEPLOYMENT_TARGET"))
433 if (char *env = ::getenv("IOS_SIMULATOR_DEPLOYMENT_TARGET"))
436 // If no '-miphoneos-version-min' specified on the command line and
437 // IPHONEOS_DEPLOYMENT_TARGET is not defined, see if we can set the default
438 // based on -isysroot.
439 if (iOSTarget.empty()) {
440 if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) {
441 StringRef first, second;
442 StringRef isysroot = A->getValue();
443 llvm::tie(first, second) = isysroot.split(StringRef("SDKs/iPhoneOS"));
445 iOSTarget = second.substr(0,3);
449 // If no OSX or iOS target has been specified and we're compiling for armv7,
450 // go ahead as assume we're targeting iOS.
451 if (OSXTarget.empty() && iOSTarget.empty() &&
452 (getDarwinArchName(Args) == "armv7" ||
453 getDarwinArchName(Args) == "armv7s"))
454 iOSTarget = iOSVersionMin;
456 // Handle conflicting deployment targets
458 // FIXME: Don't hardcode default here.
460 // Do not allow conflicts with the iOS simulator target.
461 if (!iOSSimTarget.empty() && (!OSXTarget.empty() || !iOSTarget.empty())) {
462 getDriver().Diag(diag::err_drv_conflicting_deployment_targets)
463 << "IOS_SIMULATOR_DEPLOYMENT_TARGET"
464 << (!OSXTarget.empty() ? "MACOSX_DEPLOYMENT_TARGET" :
465 "IPHONEOS_DEPLOYMENT_TARGET");
468 // Allow conflicts among OSX and iOS for historical reasons, but choose the
470 if (!OSXTarget.empty() && !iOSTarget.empty()) {
471 if (getTriple().getArch() == llvm::Triple::arm ||
472 getTriple().getArch() == llvm::Triple::thumb)
478 if (!OSXTarget.empty()) {
479 const Option O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
480 OSXVersion = Args.MakeJoinedArg(0, O, OSXTarget);
481 Args.append(OSXVersion);
482 } else if (!iOSTarget.empty()) {
483 const Option O = Opts.getOption(options::OPT_miphoneos_version_min_EQ);
484 iOSVersion = Args.MakeJoinedArg(0, O, iOSTarget);
485 Args.append(iOSVersion);
486 } else if (!iOSSimTarget.empty()) {
487 const Option O = Opts.getOption(
488 options::OPT_mios_simulator_version_min_EQ);
489 iOSSimVersion = Args.MakeJoinedArg(0, O, iOSSimTarget);
490 Args.append(iOSSimVersion);
492 // Otherwise, assume we are targeting OS X.
493 const Option O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
494 OSXVersion = Args.MakeJoinedArg(0, O, MacosxVersionMin);
495 Args.append(OSXVersion);
499 // Reject invalid architecture combinations.
500 if (iOSSimVersion && (getTriple().getArch() != llvm::Triple::x86 &&
501 getTriple().getArch() != llvm::Triple::x86_64)) {
502 getDriver().Diag(diag::err_drv_invalid_arch_for_deployment_target)
503 << getTriple().getArchName() << iOSSimVersion->getAsString(Args);
506 // Set the tool chain target information.
507 unsigned Major, Minor, Micro;
510 assert((!iOSVersion && !iOSSimVersion) && "Unknown target platform!");
511 if (!Driver::GetReleaseVersion(OSXVersion->getValue(), Major, Minor,
512 Micro, HadExtra) || HadExtra ||
513 Major != 10 || Minor >= 100 || Micro >= 100)
514 getDriver().Diag(diag::err_drv_invalid_version_number)
515 << OSXVersion->getAsString(Args);
517 const Arg *Version = iOSVersion ? iOSVersion : iOSSimVersion;
518 assert(Version && "Unknown target platform!");
519 if (!Driver::GetReleaseVersion(Version->getValue(), Major, Minor,
520 Micro, HadExtra) || HadExtra ||
521 Major >= 10 || Minor >= 100 || Micro >= 100)
522 getDriver().Diag(diag::err_drv_invalid_version_number)
523 << Version->getAsString(Args);
526 bool IsIOSSim = bool(iOSSimVersion);
528 // In GCC, the simulator historically was treated as being OS X in some
529 // contexts, like determining the link logic, despite generally being called
530 // with an iOS deployment target. For compatibility, we detect the
531 // simulator as iOS + x86, and treat it differently in a few contexts.
532 if (iOSVersion && (getTriple().getArch() == llvm::Triple::x86 ||
533 getTriple().getArch() == llvm::Triple::x86_64))
536 setTarget(/*IsIPhoneOS=*/ !OSXVersion, Major, Minor, Micro, IsIOSSim);
539 void DarwinClang::AddCXXStdlibLibArgs(const ArgList &Args,
540 ArgStringList &CmdArgs) const {
541 CXXStdlibType Type = GetCXXStdlibType(Args);
544 case ToolChain::CST_Libcxx:
545 CmdArgs.push_back("-lc++");
548 case ToolChain::CST_Libstdcxx: {
549 // Unfortunately, -lstdc++ doesn't always exist in the standard search path;
550 // it was previously found in the gcc lib dir. However, for all the Darwin
551 // platforms we care about it was -lstdc++.6, so we search for that
552 // explicitly if we can't see an obvious -lstdc++ candidate.
554 // Check in the sysroot first.
555 if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) {
556 SmallString<128> P(A->getValue());
557 llvm::sys::path::append(P, "usr", "lib", "libstdc++.dylib");
559 if (!llvm::sys::fs::exists(P.str())) {
560 llvm::sys::path::remove_filename(P);
561 llvm::sys::path::append(P, "libstdc++.6.dylib");
562 if (llvm::sys::fs::exists(P.str())) {
563 CmdArgs.push_back(Args.MakeArgString(P.str()));
569 // Otherwise, look in the root.
570 // FIXME: This should be removed someday when we don't have to care about
571 // 10.6 and earlier, where /usr/lib/libstdc++.dylib does not exist.
572 if (!llvm::sys::fs::exists("/usr/lib/libstdc++.dylib") &&
573 llvm::sys::fs::exists("/usr/lib/libstdc++.6.dylib")) {
574 CmdArgs.push_back("/usr/lib/libstdc++.6.dylib");
578 // Otherwise, let the linker search.
579 CmdArgs.push_back("-lstdc++");
585 void DarwinClang::AddCCKextLibArgs(const ArgList &Args,
586 ArgStringList &CmdArgs) const {
588 // For Darwin platforms, use the compiler-rt-based support library
589 // instead of the gcc-provided one (which is also incidentally
590 // only present in the gcc lib dir, which makes it hard to find).
592 SmallString<128> P(getDriver().ResourceDir);
593 llvm::sys::path::append(P, "lib", "darwin");
595 // Use the newer cc_kext for iOS ARM after 6.0.
596 if (!isTargetIPhoneOS() || isTargetIOSSimulator() ||
597 !isIPhoneOSVersionLT(6, 0)) {
598 llvm::sys::path::append(P, "libclang_rt.cc_kext.a");
600 llvm::sys::path::append(P, "libclang_rt.cc_kext_ios5.a");
603 // For now, allow missing resource libraries to support developers who may
604 // not have compiler-rt checked out or integrated into their build.
605 if (llvm::sys::fs::exists(P.str()))
606 CmdArgs.push_back(Args.MakeArgString(P.str()));
609 DerivedArgList *Darwin::TranslateArgs(const DerivedArgList &Args,
610 const char *BoundArch) const {
611 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
612 const OptTable &Opts = getDriver().getOpts();
614 // FIXME: We really want to get out of the tool chain level argument
615 // translation business, as it makes the driver functionality much
616 // more opaque. For now, we follow gcc closely solely for the
617 // purpose of easily achieving feature parity & testability. Once we
618 // have something that works, we should reevaluate each translation
619 // and try to push it down into tool specific logic.
621 for (ArgList::const_iterator it = Args.begin(),
622 ie = Args.end(); it != ie; ++it) {
625 if (A->getOption().matches(options::OPT_Xarch__)) {
626 // Skip this argument unless the architecture matches either the toolchain
627 // triple arch, or the arch being bound.
628 llvm::Triple::ArchType XarchArch =
629 tools::darwin::getArchTypeForDarwinArchName(A->getValue(0));
630 if (!(XarchArch == getArch() ||
631 (BoundArch && XarchArch ==
632 tools::darwin::getArchTypeForDarwinArchName(BoundArch))))
635 Arg *OriginalArg = A;
636 unsigned Index = Args.getBaseArgs().MakeIndex(A->getValue(1));
637 unsigned Prev = Index;
638 Arg *XarchArg = Opts.ParseOneArg(Args, Index);
640 // If the argument parsing failed or more than one argument was
641 // consumed, the -Xarch_ argument's parameter tried to consume
642 // extra arguments. Emit an error and ignore.
644 // We also want to disallow any options which would alter the
645 // driver behavior; that isn't going to work in our model. We
646 // use isDriverOption() as an approximation, although things
647 // like -O4 are going to slip through.
648 if (!XarchArg || Index > Prev + 1) {
649 getDriver().Diag(diag::err_drv_invalid_Xarch_argument_with_args)
650 << A->getAsString(Args);
652 } else if (XarchArg->getOption().hasFlag(options::DriverOption)) {
653 getDriver().Diag(diag::err_drv_invalid_Xarch_argument_isdriver)
654 << A->getAsString(Args);
658 XarchArg->setBaseArg(A);
661 DAL->AddSynthesizedArg(A);
663 // Linker input arguments require custom handling. The problem is that we
664 // have already constructed the phase actions, so we can not treat them as
665 // "input arguments".
666 if (A->getOption().hasFlag(options::LinkerInput)) {
667 // Convert the argument into individual Zlinker_input_args.
668 for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) {
669 DAL->AddSeparateArg(OriginalArg,
670 Opts.getOption(options::OPT_Zlinker_input),
678 // Sob. These is strictly gcc compatible for the time being. Apple
679 // gcc translates options twice, which means that self-expanding
680 // options add duplicates.
681 switch ((options::ID) A->getOption().getID()) {
686 case options::OPT_mkernel:
687 case options::OPT_fapple_kext:
689 DAL->AddFlagArg(A, Opts.getOption(options::OPT_static));
692 case options::OPT_dependency_file:
693 DAL->AddSeparateArg(A, Opts.getOption(options::OPT_MF),
697 case options::OPT_gfull:
698 DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag));
700 Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols));
703 case options::OPT_gused:
704 DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag));
706 Opts.getOption(options::OPT_feliminate_unused_debug_symbols));
709 case options::OPT_shared:
710 DAL->AddFlagArg(A, Opts.getOption(options::OPT_dynamiclib));
713 case options::OPT_fconstant_cfstrings:
714 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mconstant_cfstrings));
717 case options::OPT_fno_constant_cfstrings:
718 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_constant_cfstrings));
721 case options::OPT_Wnonportable_cfstrings:
723 Opts.getOption(options::OPT_mwarn_nonportable_cfstrings));
726 case options::OPT_Wno_nonportable_cfstrings:
728 Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings));
731 case options::OPT_fpascal_strings:
732 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mpascal_strings));
735 case options::OPT_fno_pascal_strings:
736 DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_pascal_strings));
741 if (getTriple().getArch() == llvm::Triple::x86 ||
742 getTriple().getArch() == llvm::Triple::x86_64)
743 if (!Args.hasArgNoClaim(options::OPT_mtune_EQ))
744 DAL->AddJoinedArg(0, Opts.getOption(options::OPT_mtune_EQ), "core2");
746 // Add the arch options based on the particular spelling of -arch, to match
747 // how the driver driver works.
749 StringRef Name = BoundArch;
750 const Option MCpu = Opts.getOption(options::OPT_mcpu_EQ);
751 const Option MArch = Opts.getOption(options::OPT_march_EQ);
753 // This code must be kept in sync with LLVM's getArchTypeForDarwinArch,
754 // which defines the list of which architectures we accept.
757 else if (Name == "ppc601")
758 DAL->AddJoinedArg(0, MCpu, "601");
759 else if (Name == "ppc603")
760 DAL->AddJoinedArg(0, MCpu, "603");
761 else if (Name == "ppc604")
762 DAL->AddJoinedArg(0, MCpu, "604");
763 else if (Name == "ppc604e")
764 DAL->AddJoinedArg(0, MCpu, "604e");
765 else if (Name == "ppc750")
766 DAL->AddJoinedArg(0, MCpu, "750");
767 else if (Name == "ppc7400")
768 DAL->AddJoinedArg(0, MCpu, "7400");
769 else if (Name == "ppc7450")
770 DAL->AddJoinedArg(0, MCpu, "7450");
771 else if (Name == "ppc970")
772 DAL->AddJoinedArg(0, MCpu, "970");
774 else if (Name == "ppc64" || Name == "ppc64le")
775 DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64));
777 else if (Name == "i386")
779 else if (Name == "i486")
780 DAL->AddJoinedArg(0, MArch, "i486");
781 else if (Name == "i586")
782 DAL->AddJoinedArg(0, MArch, "i586");
783 else if (Name == "i686")
784 DAL->AddJoinedArg(0, MArch, "i686");
785 else if (Name == "pentium")
786 DAL->AddJoinedArg(0, MArch, "pentium");
787 else if (Name == "pentium2")
788 DAL->AddJoinedArg(0, MArch, "pentium2");
789 else if (Name == "pentpro")
790 DAL->AddJoinedArg(0, MArch, "pentiumpro");
791 else if (Name == "pentIIm3")
792 DAL->AddJoinedArg(0, MArch, "pentium2");
794 else if (Name == "x86_64")
795 DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64));
796 else if (Name == "x86_64h") {
797 DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64));
798 DAL->AddJoinedArg(0, MArch, "x86_64h");
801 else if (Name == "arm")
802 DAL->AddJoinedArg(0, MArch, "armv4t");
803 else if (Name == "armv4t")
804 DAL->AddJoinedArg(0, MArch, "armv4t");
805 else if (Name == "armv5")
806 DAL->AddJoinedArg(0, MArch, "armv5tej");
807 else if (Name == "xscale")
808 DAL->AddJoinedArg(0, MArch, "xscale");
809 else if (Name == "armv6")
810 DAL->AddJoinedArg(0, MArch, "armv6k");
811 else if (Name == "armv6m")
812 DAL->AddJoinedArg(0, MArch, "armv6m");
813 else if (Name == "armv7")
814 DAL->AddJoinedArg(0, MArch, "armv7a");
815 else if (Name == "armv7em")
816 DAL->AddJoinedArg(0, MArch, "armv7em");
817 else if (Name == "armv7f")
818 DAL->AddJoinedArg(0, MArch, "armv7f");
819 else if (Name == "armv7k")
820 DAL->AddJoinedArg(0, MArch, "armv7k");
821 else if (Name == "armv7m")
822 DAL->AddJoinedArg(0, MArch, "armv7m");
823 else if (Name == "armv7s")
824 DAL->AddJoinedArg(0, MArch, "armv7s");
827 llvm_unreachable("invalid Darwin arch");
830 // Add an explicit version min argument for the deployment target. We do this
831 // after argument translation because -Xarch_ arguments may add a version min
834 AddDeploymentTarget(*DAL);
836 // For iOS 6, undo the translation to add -static for -mkernel/-fapple-kext.
837 // FIXME: It would be far better to avoid inserting those -static arguments,
838 // but we can't check the deployment target in the translation code until
840 if (isTargetIPhoneOS() && !isIPhoneOSVersionLT(6, 0)) {
841 for (ArgList::iterator it = DAL->begin(), ie = DAL->end(); it != ie; ) {
844 if (A->getOption().getID() != options::OPT_mkernel &&
845 A->getOption().getID() != options::OPT_fapple_kext)
847 assert(it != ie && "unexpected argument translation");
849 assert(A->getOption().getID() == options::OPT_static &&
850 "missing expected -static argument");
851 it = DAL->getArgs().erase(it);
855 // Default to use libc++ on OS X 10.9+ and iOS 7+.
856 if (((isTargetMacOS() && !isMacosxVersionLT(10, 9)) ||
857 (isTargetIPhoneOS() && !isIPhoneOSVersionLT(7, 0))) &&
858 !Args.getLastArg(options::OPT_stdlib_EQ))
859 DAL->AddJoinedArg(0, Opts.getOption(options::OPT_stdlib_EQ), "libc++");
861 // Validate the C++ standard library choice.
862 CXXStdlibType Type = GetCXXStdlibType(*DAL);
863 if (Type == ToolChain::CST_Libcxx) {
864 // Check whether the target provides libc++.
867 // Complain about targetting iOS < 5.0 in any way.
868 if (isTargetIPhoneOS() && isIPhoneOSVersionLT(5, 0))
871 if (where != StringRef()) {
872 getDriver().Diag(clang::diag::err_drv_invalid_libcxx_deployment)
880 bool Darwin::IsUnwindTablesDefault() const {
881 return getArch() == llvm::Triple::x86_64;
884 bool Darwin::UseDwarfDebugFlags() const {
885 if (const char *S = ::getenv("RC_DEBUG_OPTIONS"))
890 bool Darwin::UseSjLjExceptions() const {
891 // Darwin uses SjLj exceptions on ARM.
892 return (getTriple().getArch() == llvm::Triple::arm ||
893 getTriple().getArch() == llvm::Triple::thumb);
896 bool Darwin::isPICDefault() const {
900 bool Darwin::isPIEDefault() const {
904 bool Darwin::isPICDefaultForced() const {
905 return getArch() == llvm::Triple::x86_64;
908 bool Darwin::SupportsProfiling() const {
909 // Profiling instrumentation is only supported on x86.
910 return getArch() == llvm::Triple::x86 || getArch() == llvm::Triple::x86_64;
913 bool Darwin::SupportsObjCGC() const {
914 // Garbage collection is supported everywhere except on iPhone OS.
915 return !isTargetIPhoneOS();
918 void Darwin::CheckObjCARC() const {
919 if (isTargetIPhoneOS() || !isMacosxVersionLT(10, 6))
921 getDriver().Diag(diag::err_arc_unsupported_on_toolchain);
925 Darwin_Generic_GCC::ComputeEffectiveClangTriple(const ArgList &Args,
926 types::ID InputType) const {
927 return ComputeLLVMTriple(Args, InputType);
930 /// Generic_GCC - A tool chain using the 'gcc' command to perform
931 /// all subcommands; this relies on gcc translating the majority of
932 /// command line options.
934 /// \brief Parse a GCCVersion object out of a string of text.
936 /// This is the primary means of forming GCCVersion objects.
938 Generic_GCC::GCCVersion Linux::GCCVersion::Parse(StringRef VersionText) {
939 const GCCVersion BadVersion = { VersionText.str(), -1, -1, -1, "", "", "" };
940 std::pair<StringRef, StringRef> First = VersionText.split('.');
941 std::pair<StringRef, StringRef> Second = First.second.split('.');
943 GCCVersion GoodVersion = { VersionText.str(), -1, -1, -1, "", "", "" };
944 if (First.first.getAsInteger(10, GoodVersion.Major) ||
945 GoodVersion.Major < 0)
947 GoodVersion.MajorStr = First.first.str();
948 if (Second.first.getAsInteger(10, GoodVersion.Minor) ||
949 GoodVersion.Minor < 0)
951 GoodVersion.MinorStr = Second.first.str();
953 // First look for a number prefix and parse that if present. Otherwise just
954 // stash the entire patch string in the suffix, and leave the number
955 // unspecified. This covers versions strings such as:
961 // And retains any patch number it finds.
962 StringRef PatchText = GoodVersion.PatchSuffix = Second.second.str();
963 if (!PatchText.empty()) {
964 if (size_t EndNumber = PatchText.find_first_not_of("0123456789")) {
965 // Try to parse the number and any suffix.
966 if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) ||
967 GoodVersion.Patch < 0)
969 GoodVersion.PatchSuffix = PatchText.substr(EndNumber);
976 /// \brief Less-than for GCCVersion, implementing a Strict Weak Ordering.
977 bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
979 StringRef RHSPatchSuffix) const {
980 if (Major != RHSMajor)
981 return Major < RHSMajor;
982 if (Minor != RHSMinor)
983 return Minor < RHSMinor;
984 if (Patch != RHSPatch) {
985 // Note that versions without a specified patch sort higher than those with
992 // Otherwise just sort on the patch itself.
993 return Patch < RHSPatch;
995 if (PatchSuffix != RHSPatchSuffix) {
996 // Sort empty suffixes higher.
997 if (RHSPatchSuffix.empty())
999 if (PatchSuffix.empty())
1002 // Provide a lexicographic sort to make this a total ordering.
1003 return PatchSuffix < RHSPatchSuffix;
1006 // The versions are equal.
1010 static StringRef getGCCToolchainDir(const ArgList &Args) {
1011 const Arg *A = Args.getLastArg(options::OPT_gcc_toolchain);
1013 return A->getValue();
1014 return GCC_INSTALL_PREFIX;
1017 /// \brief Initialize a GCCInstallationDetector from the driver.
1019 /// This performs all of the autodetection and sets up the various paths.
1020 /// Once constructed, a GCCInstallationDetector is essentially immutable.
1022 /// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
1023 /// should instead pull the target out of the driver. This is currently
1024 /// necessary because the driver doesn't store the final version of the target
1027 Generic_GCC::GCCInstallationDetector::init(
1028 const llvm::Triple &TargetTriple, const ArgList &Args) {
1029 llvm::Triple BiarchVariantTriple =
1030 TargetTriple.isArch32Bit() ? TargetTriple.get64BitArchVariant()
1031 : TargetTriple.get32BitArchVariant();
1032 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1033 // The library directories which may contain GCC installations.
1034 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
1035 // The compatible GCC triples for this particular architecture.
1036 SmallVector<StringRef, 10> CandidateTripleAliases;
1037 SmallVector<StringRef, 10> CandidateBiarchTripleAliases;
1038 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
1039 CandidateTripleAliases, CandidateBiarchLibDirs,
1040 CandidateBiarchTripleAliases);
1042 // Compute the set of prefixes for our search.
1043 SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(),
1044 D.PrefixDirs.end());
1046 StringRef GCCToolchainDir = getGCCToolchainDir(Args);
1047 if (GCCToolchainDir != "") {
1048 if (GCCToolchainDir.back() == '/')
1049 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
1051 Prefixes.push_back(GCCToolchainDir);
1053 // If we have a SysRoot, try that first.
1054 if (!D.SysRoot.empty()) {
1055 Prefixes.push_back(D.SysRoot);
1056 Prefixes.push_back(D.SysRoot + "/usr");
1059 // Then look for gcc installed alongside clang.
1060 Prefixes.push_back(D.InstalledDir + "/..");
1062 // And finally in /usr.
1063 if (D.SysRoot.empty())
1064 Prefixes.push_back("/usr");
1067 // Loop over the various components which exist and select the best GCC
1068 // installation available. GCC installs are ranked by version number.
1069 Version = GCCVersion::Parse("0.0.0");
1070 for (unsigned i = 0, ie = Prefixes.size(); i < ie; ++i) {
1071 if (!llvm::sys::fs::exists(Prefixes[i]))
1073 for (unsigned j = 0, je = CandidateLibDirs.size(); j < je; ++j) {
1074 const std::string LibDir = Prefixes[i] + CandidateLibDirs[j].str();
1075 if (!llvm::sys::fs::exists(LibDir))
1077 for (unsigned k = 0, ke = CandidateTripleAliases.size(); k < ke; ++k)
1078 ScanLibDirForGCCTriple(TargetArch, Args, LibDir,
1079 CandidateTripleAliases[k]);
1081 for (unsigned j = 0, je = CandidateBiarchLibDirs.size(); j < je; ++j) {
1082 const std::string LibDir = Prefixes[i] + CandidateBiarchLibDirs[j].str();
1083 if (!llvm::sys::fs::exists(LibDir))
1085 for (unsigned k = 0, ke = CandidateBiarchTripleAliases.size(); k < ke;
1087 ScanLibDirForGCCTriple(TargetArch, Args, LibDir,
1088 CandidateBiarchTripleAliases[k],
1089 /*NeedsBiarchSuffix=*/ true);
1094 void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
1095 for (std::set<std::string>::const_iterator
1096 I = CandidateGCCInstallPaths.begin(),
1097 E = CandidateGCCInstallPaths.end();
1099 OS << "Found candidate GCC installation: " << *I << "\n";
1101 OS << "Selected GCC installation: " << GCCInstallPath << "\n";
1104 /*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
1105 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
1106 SmallVectorImpl<StringRef> &LibDirs,
1107 SmallVectorImpl<StringRef> &TripleAliases,
1108 SmallVectorImpl<StringRef> &BiarchLibDirs,
1109 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
1110 // Declare a bunch of static data sets that we'll select between below. These
1111 // are specifically designed to always refer to string literals to avoid any
1112 // lifetime or initialization issues.
1113 static const char *const AArch64LibDirs[] = { "/lib" };
1114 static const char *const AArch64Triples[] = { "aarch64-none-linux-gnu",
1115 "aarch64-linux-gnu" };
1117 static const char *const ARMLibDirs[] = { "/lib" };
1118 static const char *const ARMTriples[] = { "arm-linux-gnueabi",
1119 "arm-linux-androideabi" };
1120 static const char *const ARMHFTriples[] = { "arm-linux-gnueabihf",
1121 "armv7hl-redhat-linux-gnueabi" };
1123 static const char *const X86_64LibDirs[] = { "/lib64", "/lib" };
1124 static const char *const X86_64Triples[] = {
1125 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu", "x86_64-pc-linux-gnu",
1126 "x86_64-redhat-linux6E", "x86_64-redhat-linux", "x86_64-suse-linux",
1127 "x86_64-manbo-linux-gnu", "x86_64-linux-gnu", "x86_64-slackware-linux"
1129 static const char *const X86LibDirs[] = { "/lib32", "/lib" };
1130 static const char *const X86Triples[] = {
1131 "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu", "i386-linux-gnu",
1132 "i386-redhat-linux6E", "i686-redhat-linux", "i586-redhat-linux",
1133 "i386-redhat-linux", "i586-suse-linux", "i486-slackware-linux",
1134 "i686-montavista-linux"
1137 static const char *const MIPSLibDirs[] = { "/lib" };
1138 static const char *const MIPSTriples[] = { "mips-linux-gnu",
1139 "mips-mti-linux-gnu" };
1140 static const char *const MIPSELLibDirs[] = { "/lib" };
1141 static const char *const MIPSELTriples[] = { "mipsel-linux-gnu",
1142 "mipsel-linux-android" };
1144 static const char *const MIPS64LibDirs[] = { "/lib64", "/lib" };
1145 static const char *const MIPS64Triples[] = { "mips64-linux-gnu",
1146 "mips-mti-linux-gnu" };
1147 static const char *const MIPS64ELLibDirs[] = { "/lib64", "/lib" };
1148 static const char *const MIPS64ELTriples[] = { "mips64el-linux-gnu",
1149 "mips-mti-linux-gnu" };
1151 static const char *const PPCLibDirs[] = { "/lib32", "/lib" };
1152 static const char *const PPCTriples[] = {
1153 "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
1154 "powerpc-suse-linux", "powerpc-montavista-linuxspe"
1156 static const char *const PPC64LibDirs[] = { "/lib64", "/lib" };
1157 static const char *const PPC64Triples[] = { "powerpc64-linux-gnu",
1158 "powerpc64-unknown-linux-gnu",
1159 "powerpc64-suse-linux",
1160 "ppc64-redhat-linux" };
1161 static const char *const PPC64LELibDirs[] = { "/lib64", "/lib" };
1162 static const char *const PPC64LETriples[] = { "powerpc64le-linux-gnu",
1163 "powerpc64le-unknown-linux-gnu",
1164 "powerpc64le-suse-linux",
1165 "ppc64le-redhat-linux" };
1167 static const char *const SPARCv8LibDirs[] = { "/lib32", "/lib" };
1168 static const char *const SPARCv8Triples[] = { "sparc-linux-gnu",
1169 "sparcv8-linux-gnu" };
1170 static const char *const SPARCv9LibDirs[] = { "/lib64", "/lib" };
1171 static const char *const SPARCv9Triples[] = { "sparc64-linux-gnu",
1172 "sparcv9-linux-gnu" };
1174 static const char *const SystemZLibDirs[] = { "/lib64", "/lib" };
1175 static const char *const SystemZTriples[] = {
1176 "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
1177 "s390x-suse-linux", "s390x-redhat-linux"
1180 switch (TargetTriple.getArch()) {
1181 case llvm::Triple::aarch64:
1182 LibDirs.append(AArch64LibDirs,
1183 AArch64LibDirs + llvm::array_lengthof(AArch64LibDirs));
1184 TripleAliases.append(AArch64Triples,
1185 AArch64Triples + llvm::array_lengthof(AArch64Triples));
1186 BiarchLibDirs.append(AArch64LibDirs,
1187 AArch64LibDirs + llvm::array_lengthof(AArch64LibDirs));
1188 BiarchTripleAliases.append(
1189 AArch64Triples, AArch64Triples + llvm::array_lengthof(AArch64Triples));
1191 case llvm::Triple::arm:
1192 case llvm::Triple::thumb:
1193 LibDirs.append(ARMLibDirs, ARMLibDirs + llvm::array_lengthof(ARMLibDirs));
1194 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
1195 TripleAliases.append(ARMHFTriples,
1196 ARMHFTriples + llvm::array_lengthof(ARMHFTriples));
1198 TripleAliases.append(ARMTriples,
1199 ARMTriples + llvm::array_lengthof(ARMTriples));
1202 case llvm::Triple::x86_64:
1203 LibDirs.append(X86_64LibDirs,
1204 X86_64LibDirs + llvm::array_lengthof(X86_64LibDirs));
1205 TripleAliases.append(X86_64Triples,
1206 X86_64Triples + llvm::array_lengthof(X86_64Triples));
1207 BiarchLibDirs.append(X86LibDirs,
1208 X86LibDirs + llvm::array_lengthof(X86LibDirs));
1209 BiarchTripleAliases.append(X86Triples,
1210 X86Triples + llvm::array_lengthof(X86Triples));
1212 case llvm::Triple::x86:
1213 LibDirs.append(X86LibDirs, X86LibDirs + llvm::array_lengthof(X86LibDirs));
1214 TripleAliases.append(X86Triples,
1215 X86Triples + llvm::array_lengthof(X86Triples));
1216 BiarchLibDirs.append(X86_64LibDirs,
1217 X86_64LibDirs + llvm::array_lengthof(X86_64LibDirs));
1218 BiarchTripleAliases.append(
1219 X86_64Triples, X86_64Triples + llvm::array_lengthof(X86_64Triples));
1221 case llvm::Triple::mips:
1222 LibDirs.append(MIPSLibDirs,
1223 MIPSLibDirs + llvm::array_lengthof(MIPSLibDirs));
1224 TripleAliases.append(MIPSTriples,
1225 MIPSTriples + llvm::array_lengthof(MIPSTriples));
1226 BiarchLibDirs.append(MIPS64LibDirs,
1227 MIPS64LibDirs + llvm::array_lengthof(MIPS64LibDirs));
1228 BiarchTripleAliases.append(
1229 MIPS64Triples, MIPS64Triples + llvm::array_lengthof(MIPS64Triples));
1231 case llvm::Triple::mipsel:
1232 LibDirs.append(MIPSELLibDirs,
1233 MIPSELLibDirs + llvm::array_lengthof(MIPSELLibDirs));
1234 TripleAliases.append(MIPSELTriples,
1235 MIPSELTriples + llvm::array_lengthof(MIPSELTriples));
1236 TripleAliases.append(MIPSTriples,
1237 MIPSTriples + llvm::array_lengthof(MIPSTriples));
1238 BiarchLibDirs.append(
1240 MIPS64ELLibDirs + llvm::array_lengthof(MIPS64ELLibDirs));
1241 BiarchTripleAliases.append(
1243 MIPS64ELTriples + llvm::array_lengthof(MIPS64ELTriples));
1245 case llvm::Triple::mips64:
1246 LibDirs.append(MIPS64LibDirs,
1247 MIPS64LibDirs + llvm::array_lengthof(MIPS64LibDirs));
1248 TripleAliases.append(MIPS64Triples,
1249 MIPS64Triples + llvm::array_lengthof(MIPS64Triples));
1250 BiarchLibDirs.append(MIPSLibDirs,
1251 MIPSLibDirs + llvm::array_lengthof(MIPSLibDirs));
1252 BiarchTripleAliases.append(MIPSTriples,
1253 MIPSTriples + llvm::array_lengthof(MIPSTriples));
1255 case llvm::Triple::mips64el:
1256 LibDirs.append(MIPS64ELLibDirs,
1257 MIPS64ELLibDirs + llvm::array_lengthof(MIPS64ELLibDirs));
1258 TripleAliases.append(
1260 MIPS64ELTriples + llvm::array_lengthof(MIPS64ELTriples));
1261 BiarchLibDirs.append(MIPSELLibDirs,
1262 MIPSELLibDirs + llvm::array_lengthof(MIPSELLibDirs));
1263 BiarchTripleAliases.append(
1264 MIPSELTriples, MIPSELTriples + llvm::array_lengthof(MIPSELTriples));
1265 BiarchTripleAliases.append(
1266 MIPSTriples, MIPSTriples + llvm::array_lengthof(MIPSTriples));
1268 case llvm::Triple::ppc:
1269 LibDirs.append(PPCLibDirs, PPCLibDirs + llvm::array_lengthof(PPCLibDirs));
1270 TripleAliases.append(PPCTriples,
1271 PPCTriples + llvm::array_lengthof(PPCTriples));
1272 BiarchLibDirs.append(PPC64LibDirs,
1273 PPC64LibDirs + llvm::array_lengthof(PPC64LibDirs));
1274 BiarchTripleAliases.append(
1275 PPC64Triples, PPC64Triples + llvm::array_lengthof(PPC64Triples));
1277 case llvm::Triple::ppc64:
1278 LibDirs.append(PPC64LibDirs,
1279 PPC64LibDirs + llvm::array_lengthof(PPC64LibDirs));
1280 TripleAliases.append(PPC64Triples,
1281 PPC64Triples + llvm::array_lengthof(PPC64Triples));
1282 BiarchLibDirs.append(PPCLibDirs,
1283 PPCLibDirs + llvm::array_lengthof(PPCLibDirs));
1284 BiarchTripleAliases.append(PPCTriples,
1285 PPCTriples + llvm::array_lengthof(PPCTriples));
1287 case llvm::Triple::ppc64le:
1288 LibDirs.append(PPC64LELibDirs,
1289 PPC64LELibDirs + llvm::array_lengthof(PPC64LELibDirs));
1290 TripleAliases.append(PPC64LETriples,
1291 PPC64LETriples + llvm::array_lengthof(PPC64LETriples));
1293 case llvm::Triple::sparc:
1294 LibDirs.append(SPARCv8LibDirs,
1295 SPARCv8LibDirs + llvm::array_lengthof(SPARCv8LibDirs));
1296 TripleAliases.append(SPARCv8Triples,
1297 SPARCv8Triples + llvm::array_lengthof(SPARCv8Triples));
1298 BiarchLibDirs.append(SPARCv9LibDirs,
1299 SPARCv9LibDirs + llvm::array_lengthof(SPARCv9LibDirs));
1300 BiarchTripleAliases.append(
1301 SPARCv9Triples, SPARCv9Triples + llvm::array_lengthof(SPARCv9Triples));
1303 case llvm::Triple::sparcv9:
1304 LibDirs.append(SPARCv9LibDirs,
1305 SPARCv9LibDirs + llvm::array_lengthof(SPARCv9LibDirs));
1306 TripleAliases.append(SPARCv9Triples,
1307 SPARCv9Triples + llvm::array_lengthof(SPARCv9Triples));
1308 BiarchLibDirs.append(SPARCv8LibDirs,
1309 SPARCv8LibDirs + llvm::array_lengthof(SPARCv8LibDirs));
1310 BiarchTripleAliases.append(
1311 SPARCv8Triples, SPARCv8Triples + llvm::array_lengthof(SPARCv8Triples));
1313 case llvm::Triple::systemz:
1314 LibDirs.append(SystemZLibDirs,
1315 SystemZLibDirs + llvm::array_lengthof(SystemZLibDirs));
1316 TripleAliases.append(SystemZTriples,
1317 SystemZTriples + llvm::array_lengthof(SystemZTriples));
1321 // By default, just rely on the standard lib directories and the original
1326 // Always append the drivers target triple to the end, in case it doesn't
1327 // match any of our aliases.
1328 TripleAliases.push_back(TargetTriple.str());
1330 // Also include the multiarch variant if it's different.
1331 if (TargetTriple.str() != BiarchTriple.str())
1332 BiarchTripleAliases.push_back(BiarchTriple.str());
1335 static bool isSoftFloatABI(const ArgList &Args) {
1336 Arg *A = Args.getLastArg(options::OPT_msoft_float,
1337 options::OPT_mhard_float,
1338 options::OPT_mfloat_abi_EQ);
1339 if (!A) return false;
1341 return A->getOption().matches(options::OPT_msoft_float) ||
1342 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
1343 A->getValue() == StringRef("soft"));
1346 static bool isMipsArch(llvm::Triple::ArchType Arch) {
1347 return Arch == llvm::Triple::mips ||
1348 Arch == llvm::Triple::mipsel ||
1349 Arch == llvm::Triple::mips64 ||
1350 Arch == llvm::Triple::mips64el;
1353 static bool isMips16(const ArgList &Args) {
1354 Arg *A = Args.getLastArg(options::OPT_mips16,
1355 options::OPT_mno_mips16);
1356 return A && A->getOption().matches(options::OPT_mips16);
1359 static bool isMips32r2(const ArgList &Args) {
1360 Arg *A = Args.getLastArg(options::OPT_march_EQ,
1361 options::OPT_mcpu_EQ);
1363 return A && A->getValue() == StringRef("mips32r2");
1366 static bool isMips64r2(const ArgList &Args) {
1367 Arg *A = Args.getLastArg(options::OPT_march_EQ,
1368 options::OPT_mcpu_EQ);
1370 return A && A->getValue() == StringRef("mips64r2");
1373 static bool isMicroMips(const ArgList &Args) {
1374 Arg *A = Args.getLastArg(options::OPT_mmicromips,
1375 options::OPT_mno_micromips);
1376 return A && A->getOption().matches(options::OPT_mmicromips);
1379 static bool isMipsFP64(const ArgList &Args) {
1380 Arg *A = Args.getLastArg(options::OPT_mfp64, options::OPT_mfp32);
1381 return A && A->getOption().matches(options::OPT_mfp64);
1384 static bool isMipsNan2008(const ArgList &Args) {
1385 Arg *A = Args.getLastArg(options::OPT_mnan_EQ);
1386 return A && A->getValue() == StringRef("2008");
1389 // FIXME: There is the same routine in the Tools.cpp.
1390 static bool hasMipsN32ABIArg(const ArgList &Args) {
1391 Arg *A = Args.getLastArg(options::OPT_mabi_EQ);
1392 return A && (A->getValue() == StringRef("n32"));
1395 static bool hasCrtBeginObj(Twine Path) {
1396 return llvm::sys::fs::exists(Path + "/crtbegin.o");
1399 static bool findTargetBiarchSuffix(std::string &Suffix, StringRef Path,
1400 llvm::Triple::ArchType TargetArch,
1401 const ArgList &Args) {
1402 // FIXME: This routine was only intended to model bi-arch toolchains which
1403 // use -m32 and -m64 to swap between variants of a target. It shouldn't be
1404 // doing ABI-based builtin location for MIPS.
1405 if (hasMipsN32ABIArg(Args))
1407 else if (TargetArch == llvm::Triple::x86_64 ||
1408 TargetArch == llvm::Triple::ppc64 ||
1409 TargetArch == llvm::Triple::sparcv9 ||
1410 TargetArch == llvm::Triple::systemz ||
1411 TargetArch == llvm::Triple::mips64 ||
1412 TargetArch == llvm::Triple::mips64el)
1417 return hasCrtBeginObj(Path + Suffix);
1420 void Generic_GCC::GCCInstallationDetector::findMIPSABIDirSuffix(
1421 std::string &Suffix, llvm::Triple::ArchType TargetArch, StringRef Path,
1422 const llvm::opt::ArgList &Args) {
1423 if (!isMipsArch(TargetArch))
1426 // Some MIPS toolchains put libraries and object files compiled
1427 // using different options in to the sub-directoris which names
1428 // reflects the flags used for compilation. For example sysroot
1429 // directory might looks like the following examples:
1432 // /lib <= crt*.o files compiled with '-mips32'
1435 // /lib <= crt*.o files compiled with '-mips16'
1438 // /lib <= crt*.o files compiled with '-mips16 -EL'
1443 // /lib <= crt*.o files compiled with '-mips32r2'
1446 // /lib <= crt*.o files compiled with '-mips32r2 -mips16'
1449 // /lib <= crt*.o files compiled with '-mips32'
1451 // Unfortunately different toolchains use different and partially
1452 // overlapped naming schemes. So we have to make a trick for detection
1453 // of using toolchain. We lookup a path which unique for each toolchains.
1455 bool IsMentorToolChain = hasCrtBeginObj(Path + "/mips16/soft-float");
1456 bool IsFSFToolChain = hasCrtBeginObj(Path + "/mips32/mips16/sof");
1458 if (IsMentorToolChain && IsFSFToolChain)
1459 D.Diag(diag::err_drv_unknown_toolchain);
1461 if (IsMentorToolChain) {
1463 Suffix += "/mips16";
1464 else if (isMicroMips(Args))
1465 Suffix += "/micromips";
1467 if (isSoftFloatABI(Args))
1468 Suffix += "/soft-float";
1470 if (TargetArch == llvm::Triple::mipsel ||
1471 TargetArch == llvm::Triple::mips64el)
1473 } else if (IsFSFToolChain) {
1474 if (TargetArch == llvm::Triple::mips ||
1475 TargetArch == llvm::Triple::mipsel) {
1476 if (isMicroMips(Args))
1477 Suffix += "/micromips";
1478 else if (isMips32r2(Args))
1481 Suffix += "/mips32";
1484 Suffix += "/mips16";
1486 if (isMips64r2(Args))
1487 Suffix += hasMipsN32ABIArg(Args) ? "/mips64r2" : "/mips64r2/64";
1489 Suffix += hasMipsN32ABIArg(Args) ? "/mips64" : "/mips64/64";
1492 if (TargetArch == llvm::Triple::mipsel ||
1493 TargetArch == llvm::Triple::mips64el)
1496 if (isSoftFloatABI(Args))
1499 if (isMipsFP64(Args))
1502 if (isMipsNan2008(Args))
1503 Suffix += "/nan2008";
1507 if (!hasCrtBeginObj(Path + Suffix))
1511 void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
1512 llvm::Triple::ArchType TargetArch, const ArgList &Args,
1513 const std::string &LibDir, StringRef CandidateTriple,
1514 bool NeedsBiarchSuffix) {
1515 // There are various different suffixes involving the triple we
1516 // check for. We also record what is necessary to walk from each back
1517 // up to the lib directory.
1518 const std::string LibSuffixes[] = {
1519 "/gcc/" + CandidateTriple.str(),
1520 // Debian puts cross-compilers in gcc-cross
1521 "/gcc-cross/" + CandidateTriple.str(),
1522 "/" + CandidateTriple.str() + "/gcc/" + CandidateTriple.str(),
1524 // The Freescale PPC SDK has the gcc libraries in
1525 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well.
1526 "/" + CandidateTriple.str(),
1528 // Ubuntu has a strange mis-matched pair of triples that this happens to
1530 // FIXME: It may be worthwhile to generalize this and look for a second
1532 "/i386-linux-gnu/gcc/" + CandidateTriple.str()
1534 const std::string InstallSuffixes[] = {
1535 "/../../..", // gcc/
1536 "/../../..", // gcc-cross/
1537 "/../../../..", // <triple>/gcc/
1538 "/../..", // <triple>/
1539 "/../../../.." // i386-linux-gnu/gcc/<triple>/
1541 // Only look at the final, weird Ubuntu suffix for i386-linux-gnu.
1542 const unsigned NumLibSuffixes =
1543 (llvm::array_lengthof(LibSuffixes) - (TargetArch != llvm::Triple::x86));
1544 for (unsigned i = 0; i < NumLibSuffixes; ++i) {
1545 StringRef LibSuffix = LibSuffixes[i];
1546 llvm::error_code EC;
1547 for (llvm::sys::fs::directory_iterator LI(LibDir + LibSuffix, EC), LE;
1548 !EC && LI != LE; LI = LI.increment(EC)) {
1549 StringRef VersionText = llvm::sys::path::filename(LI->path());
1550 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
1551 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
1552 if (!CandidateGCCInstallPaths.insert(LI->path()).second)
1553 continue; // Saw this path before; no need to look at it again.
1554 if (CandidateVersion.isOlderThan(4, 1, 1))
1556 if (CandidateVersion <= Version)
1559 std::string MIPSABIDirSuffix;
1560 findMIPSABIDirSuffix(MIPSABIDirSuffix, TargetArch, LI->path(), Args);
1562 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1563 // in what would normally be GCCInstallPath and put the 64-bit
1564 // libs in a subdirectory named 64. The simple logic we follow is that
1565 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1566 // we use that. If not, and if not a biarch triple alias, we look for
1567 // crtbegin.o without the subdirectory.
1569 std::string BiarchSuffix;
1570 if (findTargetBiarchSuffix(BiarchSuffix,
1571 LI->path() + MIPSABIDirSuffix,
1572 TargetArch, Args)) {
1573 GCCBiarchSuffix = BiarchSuffix;
1574 } else if (NeedsBiarchSuffix ||
1575 !hasCrtBeginObj(LI->path() + MIPSABIDirSuffix)) {
1578 GCCBiarchSuffix.clear();
1581 Version = CandidateVersion;
1582 GCCTriple.setTriple(CandidateTriple);
1583 // FIXME: We hack together the directory name here instead of
1584 // using LI to ensure stable path separators across Windows and
1586 GCCInstallPath = LibDir + LibSuffixes[i] + "/" + VersionText.str();
1587 GCCParentLibPath = GCCInstallPath + InstallSuffixes[i];
1588 GCCMIPSABIDirSuffix = MIPSABIDirSuffix;
1594 Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple& Triple,
1595 const ArgList &Args)
1596 : ToolChain(D, Triple, Args), GCCInstallation(getDriver()) {
1597 getProgramPaths().push_back(getDriver().getInstalledDir());
1598 if (getDriver().getInstalledDir() != getDriver().Dir)
1599 getProgramPaths().push_back(getDriver().Dir);
1602 Generic_GCC::~Generic_GCC() {
1605 Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
1607 case Action::PreprocessJobClass:
1609 Preprocess.reset(new tools::gcc::Preprocess(*this));
1610 return Preprocess.get();
1611 case Action::PrecompileJobClass:
1613 Precompile.reset(new tools::gcc::Precompile(*this));
1614 return Precompile.get();
1615 case Action::CompileJobClass:
1617 Compile.reset(new tools::gcc::Compile(*this));
1618 return Compile.get();
1620 return ToolChain::getTool(AC);
1624 Tool *Generic_GCC::buildAssembler() const {
1625 return new tools::gcc::Assemble(*this);
1628 Tool *Generic_GCC::buildLinker() const {
1629 return new tools::gcc::Link(*this);
1632 void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
1633 // Print the information about how we detected the GCC installation.
1634 GCCInstallation.print(OS);
1637 bool Generic_GCC::IsUnwindTablesDefault() const {
1638 return getArch() == llvm::Triple::x86_64;
1641 bool Generic_GCC::isPICDefault() const {
1645 bool Generic_GCC::isPIEDefault() const {
1649 bool Generic_GCC::isPICDefaultForced() const {
1653 /// Hexagon Toolchain
1655 std::string Hexagon_TC::GetGnuDir(const std::string &InstalledDir) {
1657 // Locate the rest of the toolchain ...
1658 if (strlen(GCC_INSTALL_PREFIX))
1659 return std::string(GCC_INSTALL_PREFIX);
1661 std::string InstallRelDir = InstalledDir + "/../../gnu";
1662 if (llvm::sys::fs::exists(InstallRelDir))
1663 return InstallRelDir;
1665 std::string PrefixRelDir = std::string(LLVM_PREFIX) + "/../gnu";
1666 if (llvm::sys::fs::exists(PrefixRelDir))
1667 return PrefixRelDir;
1669 return InstallRelDir;
1672 static void GetHexagonLibraryPaths(
1673 const ArgList &Args,
1674 const std::string Ver,
1675 const std::string MarchString,
1676 const std::string &InstalledDir,
1677 ToolChain::path_list *LibPaths)
1679 bool buildingLib = Args.hasArg(options::OPT_shared);
1681 //----------------------------------------------------------------------------
1683 //----------------------------------------------------------------------------
1685 it = Args.filtered_begin(options::OPT_L),
1686 ie = Args.filtered_end();
1689 for (unsigned i = 0, e = (*it)->getNumValues(); i != e; ++i)
1690 LibPaths->push_back((*it)->getValue(i));
1693 //----------------------------------------------------------------------------
1694 // Other standard paths
1695 //----------------------------------------------------------------------------
1696 const std::string MarchSuffix = "/" + MarchString;
1697 const std::string G0Suffix = "/G0";
1698 const std::string MarchG0Suffix = MarchSuffix + G0Suffix;
1699 const std::string RootDir = Hexagon_TC::GetGnuDir(InstalledDir) + "/";
1701 // lib/gcc/hexagon/...
1702 std::string LibGCCHexagonDir = RootDir + "lib/gcc/hexagon/";
1704 LibPaths->push_back(LibGCCHexagonDir + Ver + MarchG0Suffix);
1705 LibPaths->push_back(LibGCCHexagonDir + Ver + G0Suffix);
1707 LibPaths->push_back(LibGCCHexagonDir + Ver + MarchSuffix);
1708 LibPaths->push_back(LibGCCHexagonDir + Ver);
1711 LibPaths->push_back(RootDir + "lib/gcc");
1714 std::string HexagonLibDir = RootDir + "hexagon/lib";
1716 LibPaths->push_back(HexagonLibDir + MarchG0Suffix);
1717 LibPaths->push_back(HexagonLibDir + G0Suffix);
1719 LibPaths->push_back(HexagonLibDir + MarchSuffix);
1720 LibPaths->push_back(HexagonLibDir);
1723 Hexagon_TC::Hexagon_TC(const Driver &D, const llvm::Triple &Triple,
1724 const ArgList &Args)
1725 : Linux(D, Triple, Args) {
1726 const std::string InstalledDir(getDriver().getInstalledDir());
1727 const std::string GnuDir = Hexagon_TC::GetGnuDir(InstalledDir);
1729 // Note: Generic_GCC::Generic_GCC adds InstalledDir and getDriver().Dir to
1731 const std::string BinDir(GnuDir + "/bin");
1732 if (llvm::sys::fs::exists(BinDir))
1733 getProgramPaths().push_back(BinDir);
1735 // Determine version of GCC libraries and headers to use.
1736 const std::string HexagonDir(GnuDir + "/lib/gcc/hexagon");
1737 llvm::error_code ec;
1738 GCCVersion MaxVersion= GCCVersion::Parse("0.0.0");
1739 for (llvm::sys::fs::directory_iterator di(HexagonDir, ec), de;
1740 !ec && di != de; di = di.increment(ec)) {
1741 GCCVersion cv = GCCVersion::Parse(llvm::sys::path::filename(di->path()));
1742 if (MaxVersion < cv)
1745 GCCLibAndIncVersion = MaxVersion;
1747 ToolChain::path_list *LibPaths= &getFilePaths();
1749 // Remove paths added by Linux toolchain. Currently Hexagon_TC really targets
1750 // 'elf' OS type, so the Linux paths are not appropriate. When we actually
1751 // support 'linux' we'll need to fix this up
1754 GetHexagonLibraryPaths(
1756 GetGCCLibAndIncVersion(),
1762 Hexagon_TC::~Hexagon_TC() {
1765 Tool *Hexagon_TC::buildAssembler() const {
1766 return new tools::hexagon::Assemble(*this);
1769 Tool *Hexagon_TC::buildLinker() const {
1770 return new tools::hexagon::Link(*this);
1773 void Hexagon_TC::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
1774 ArgStringList &CC1Args) const {
1775 const Driver &D = getDriver();
1777 if (DriverArgs.hasArg(options::OPT_nostdinc) ||
1778 DriverArgs.hasArg(options::OPT_nostdlibinc))
1781 std::string Ver(GetGCCLibAndIncVersion());
1782 std::string GnuDir = Hexagon_TC::GetGnuDir(D.InstalledDir);
1783 std::string HexagonDir(GnuDir + "/lib/gcc/hexagon/" + Ver);
1784 addExternCSystemInclude(DriverArgs, CC1Args, HexagonDir + "/include");
1785 addExternCSystemInclude(DriverArgs, CC1Args, HexagonDir + "/include-fixed");
1786 addExternCSystemInclude(DriverArgs, CC1Args, GnuDir + "/hexagon/include");
1789 void Hexagon_TC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
1790 ArgStringList &CC1Args) const {
1792 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
1793 DriverArgs.hasArg(options::OPT_nostdincxx))
1796 const Driver &D = getDriver();
1797 std::string Ver(GetGCCLibAndIncVersion());
1798 SmallString<128> IncludeDir(Hexagon_TC::GetGnuDir(D.InstalledDir));
1800 llvm::sys::path::append(IncludeDir, "hexagon/include/c++/");
1801 llvm::sys::path::append(IncludeDir, Ver);
1802 addSystemInclude(DriverArgs, CC1Args, IncludeDir.str());
1805 ToolChain::CXXStdlibType
1806 Hexagon_TC::GetCXXStdlibType(const ArgList &Args) const {
1807 Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
1809 return ToolChain::CST_Libstdcxx;
1811 StringRef Value = A->getValue();
1812 if (Value != "libstdc++") {
1813 getDriver().Diag(diag::err_drv_invalid_stdlib_name)
1814 << A->getAsString(Args);
1817 return ToolChain::CST_Libstdcxx;
1820 static int getHexagonVersion(const ArgList &Args) {
1821 Arg *A = Args.getLastArg(options::OPT_march_EQ, options::OPT_mcpu_EQ);
1822 // Select the default CPU (v4) if none was given.
1826 // FIXME: produce errors if we cannot parse the version.
1827 StringRef WhichHexagon = A->getValue();
1828 if (WhichHexagon.startswith("hexagonv")) {
1830 if (!WhichHexagon.substr(sizeof("hexagonv") - 1).getAsInteger(10, Val))
1833 if (WhichHexagon.startswith("v")) {
1835 if (!WhichHexagon.substr(1).getAsInteger(10, Val))
1839 // FIXME: should probably be an error.
1843 StringRef Hexagon_TC::GetTargetCPU(const ArgList &Args)
1845 int V = getHexagonVersion(Args);
1846 // FIXME: We don't support versions < 4. We should error on them.
1849 llvm_unreachable("Unexpected version");
1864 /// TCEToolChain - A tool chain using the llvm bitcode tools to perform
1865 /// all subcommands. See http://tce.cs.tut.fi for our peculiar target.
1866 /// Currently does not support anything else but compilation.
1868 TCEToolChain::TCEToolChain(const Driver &D, const llvm::Triple& Triple,
1869 const ArgList &Args)
1870 : ToolChain(D, Triple, Args) {
1871 // Path mangling to find libexec
1872 std::string Path(getDriver().Dir);
1874 Path += "/../libexec";
1875 getProgramPaths().push_back(Path);
1878 TCEToolChain::~TCEToolChain() {
1881 bool TCEToolChain::IsMathErrnoDefault() const {
1885 bool TCEToolChain::isPICDefault() const {
1889 bool TCEToolChain::isPIEDefault() const {
1893 bool TCEToolChain::isPICDefaultForced() const {
1897 /// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly.
1899 OpenBSD::OpenBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
1900 : Generic_ELF(D, Triple, Args) {
1901 getFilePaths().push_back(getDriver().Dir + "/../lib");
1902 getFilePaths().push_back("/usr/lib");
1905 Tool *OpenBSD::buildAssembler() const {
1906 return new tools::openbsd::Assemble(*this);
1909 Tool *OpenBSD::buildLinker() const {
1910 return new tools::openbsd::Link(*this);
1913 /// Bitrig - Bitrig tool chain which can call as(1) and ld(1) directly.
1915 Bitrig::Bitrig(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
1916 : Generic_ELF(D, Triple, Args) {
1917 getFilePaths().push_back(getDriver().Dir + "/../lib");
1918 getFilePaths().push_back("/usr/lib");
1921 Tool *Bitrig::buildAssembler() const {
1922 return new tools::bitrig::Assemble(*this);
1925 Tool *Bitrig::buildLinker() const {
1926 return new tools::bitrig::Link(*this);
1929 void Bitrig::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
1930 ArgStringList &CC1Args) const {
1931 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
1932 DriverArgs.hasArg(options::OPT_nostdincxx))
1935 switch (GetCXXStdlibType(DriverArgs)) {
1936 case ToolChain::CST_Libcxx:
1937 addSystemInclude(DriverArgs, CC1Args,
1938 getDriver().SysRoot + "/usr/include/c++/");
1940 case ToolChain::CST_Libstdcxx:
1941 addSystemInclude(DriverArgs, CC1Args,
1942 getDriver().SysRoot + "/usr/include/c++/stdc++");
1943 addSystemInclude(DriverArgs, CC1Args,
1944 getDriver().SysRoot + "/usr/include/c++/stdc++/backward");
1946 StringRef Triple = getTriple().str();
1947 if (Triple.startswith("amd64"))
1948 addSystemInclude(DriverArgs, CC1Args,
1949 getDriver().SysRoot + "/usr/include/c++/stdc++/x86_64" +
1952 addSystemInclude(DriverArgs, CC1Args,
1953 getDriver().SysRoot + "/usr/include/c++/stdc++/" +
1959 void Bitrig::AddCXXStdlibLibArgs(const ArgList &Args,
1960 ArgStringList &CmdArgs) const {
1961 switch (GetCXXStdlibType(Args)) {
1962 case ToolChain::CST_Libcxx:
1963 CmdArgs.push_back("-lc++");
1964 CmdArgs.push_back("-lcxxrt");
1965 // Include supc++ to provide Unwind until provided by libcxx.
1966 CmdArgs.push_back("-lgcc");
1968 case ToolChain::CST_Libstdcxx:
1969 CmdArgs.push_back("-lstdc++");
1974 /// FreeBSD - FreeBSD tool chain which can call as(1) and ld(1) directly.
1976 FreeBSD::FreeBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
1977 : Generic_ELF(D, Triple, Args) {
1979 // When targeting 32-bit platforms, look for '/usr/lib32/crt1.o' and fall
1980 // back to '/usr/lib' if it doesn't exist.
1981 if ((Triple.getArch() == llvm::Triple::x86 ||
1982 Triple.getArch() == llvm::Triple::ppc) &&
1983 llvm::sys::fs::exists(getDriver().SysRoot + "/usr/lib32/crt1.o"))
1984 getFilePaths().push_back(getDriver().SysRoot + "/usr/lib32");
1986 getFilePaths().push_back(getDriver().SysRoot + "/usr/lib");
1989 ToolChain::CXXStdlibType
1990 FreeBSD::GetCXXStdlibType(const ArgList &Args) const {
1991 if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
1992 StringRef Value = A->getValue();
1993 if (Value == "libstdc++")
1994 return ToolChain::CST_Libstdcxx;
1995 if (Value == "libc++")
1996 return ToolChain::CST_Libcxx;
1998 getDriver().Diag(diag::err_drv_invalid_stdlib_name)
1999 << A->getAsString(Args);
2001 if (getTriple().getOSMajorVersion() >= 10)
2002 return ToolChain::CST_Libcxx;
2003 return ToolChain::CST_Libstdcxx;
2006 void FreeBSD::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2007 ArgStringList &CC1Args) const {
2008 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2009 DriverArgs.hasArg(options::OPT_nostdincxx))
2012 switch (GetCXXStdlibType(DriverArgs)) {
2013 case ToolChain::CST_Libcxx:
2014 addSystemInclude(DriverArgs, CC1Args,
2015 getDriver().SysRoot + "/usr/include/c++/v1");
2017 case ToolChain::CST_Libstdcxx:
2018 addSystemInclude(DriverArgs, CC1Args,
2019 getDriver().SysRoot + "/usr/include/c++/4.2");
2020 addSystemInclude(DriverArgs, CC1Args,
2021 getDriver().SysRoot + "/usr/include/c++/4.2/backward");
2026 Tool *FreeBSD::buildAssembler() const {
2027 return new tools::freebsd::Assemble(*this);
2030 Tool *FreeBSD::buildLinker() const {
2031 return new tools::freebsd::Link(*this);
2034 bool FreeBSD::UseSjLjExceptions() const {
2035 // FreeBSD uses SjLj exceptions on ARM oabi.
2036 switch (getTriple().getEnvironment()) {
2037 case llvm::Triple::GNUEABI:
2038 case llvm::Triple::EABI:
2042 return (getTriple().getArch() == llvm::Triple::arm ||
2043 getTriple().getArch() == llvm::Triple::thumb);
2047 /// NetBSD - NetBSD tool chain which can call as(1) and ld(1) directly.
2049 NetBSD::NetBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
2050 : Generic_ELF(D, Triple, Args) {
2052 if (getDriver().UseStdLib) {
2053 // When targeting a 32-bit platform, try the special directory used on
2054 // 64-bit hosts, and only fall back to the main library directory if that
2056 // FIXME: It'd be nicer to test if this directory exists, but I'm not sure
2057 // what all logic is needed to emulate the '=' prefix here.
2058 if (Triple.getArch() == llvm::Triple::x86)
2059 getFilePaths().push_back("=/usr/lib/i386");
2061 getFilePaths().push_back("=/usr/lib");
2065 Tool *NetBSD::buildAssembler() const {
2066 return new tools::netbsd::Assemble(*this);
2069 Tool *NetBSD::buildLinker() const {
2070 return new tools::netbsd::Link(*this);
2073 ToolChain::CXXStdlibType
2074 NetBSD::GetCXXStdlibType(const ArgList &Args) const {
2075 if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
2076 StringRef Value = A->getValue();
2077 if (Value == "libstdc++")
2078 return ToolChain::CST_Libstdcxx;
2079 if (Value == "libc++")
2080 return ToolChain::CST_Libcxx;
2082 getDriver().Diag(diag::err_drv_invalid_stdlib_name)
2083 << A->getAsString(Args);
2086 unsigned Major, Minor, Micro;
2087 getTriple().getOSVersion(Major, Minor, Micro);
2088 if (Major >= 7 || (Major == 6 && Minor == 99 && Micro >= 23) || Major == 0) {
2089 if (getArch() == llvm::Triple::x86 || getArch() == llvm::Triple::x86_64)
2090 return ToolChain::CST_Libcxx;
2092 return ToolChain::CST_Libstdcxx;
2095 void NetBSD::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2096 ArgStringList &CC1Args) const {
2097 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2098 DriverArgs.hasArg(options::OPT_nostdincxx))
2101 switch (GetCXXStdlibType(DriverArgs)) {
2102 case ToolChain::CST_Libcxx:
2103 addSystemInclude(DriverArgs, CC1Args,
2104 getDriver().SysRoot + "/usr/include/c++/");
2106 case ToolChain::CST_Libstdcxx:
2107 addSystemInclude(DriverArgs, CC1Args,
2108 getDriver().SysRoot + "/usr/include/g++");
2109 addSystemInclude(DriverArgs, CC1Args,
2110 getDriver().SysRoot + "/usr/include/g++/backward");
2115 /// Minix - Minix tool chain which can call as(1) and ld(1) directly.
2117 Minix::Minix(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
2118 : Generic_ELF(D, Triple, Args) {
2119 getFilePaths().push_back(getDriver().Dir + "/../lib");
2120 getFilePaths().push_back("/usr/lib");
2123 Tool *Minix::buildAssembler() const {
2124 return new tools::minix::Assemble(*this);
2127 Tool *Minix::buildLinker() const {
2128 return new tools::minix::Link(*this);
2131 /// AuroraUX - AuroraUX tool chain which can call as(1) and ld(1) directly.
2133 AuroraUX::AuroraUX(const Driver &D, const llvm::Triple& Triple,
2134 const ArgList &Args)
2135 : Generic_GCC(D, Triple, Args) {
2137 getProgramPaths().push_back(getDriver().getInstalledDir());
2138 if (getDriver().getInstalledDir() != getDriver().Dir)
2139 getProgramPaths().push_back(getDriver().Dir);
2141 getFilePaths().push_back(getDriver().Dir + "/../lib");
2142 getFilePaths().push_back("/usr/lib");
2143 getFilePaths().push_back("/usr/sfw/lib");
2144 getFilePaths().push_back("/opt/gcc4/lib");
2145 getFilePaths().push_back("/opt/gcc4/lib/gcc/i386-pc-solaris2.11/4.2.4");
2149 Tool *AuroraUX::buildAssembler() const {
2150 return new tools::auroraux::Assemble(*this);
2153 Tool *AuroraUX::buildLinker() const {
2154 return new tools::auroraux::Link(*this);
2157 /// Solaris - Solaris tool chain which can call as(1) and ld(1) directly.
2159 Solaris::Solaris(const Driver &D, const llvm::Triple& Triple,
2160 const ArgList &Args)
2161 : Generic_GCC(D, Triple, Args) {
2163 getProgramPaths().push_back(getDriver().getInstalledDir());
2164 if (getDriver().getInstalledDir() != getDriver().Dir)
2165 getProgramPaths().push_back(getDriver().Dir);
2167 getFilePaths().push_back(getDriver().Dir + "/../lib");
2168 getFilePaths().push_back("/usr/lib");
2171 Tool *Solaris::buildAssembler() const {
2172 return new tools::solaris::Assemble(*this);
2175 Tool *Solaris::buildLinker() const {
2176 return new tools::solaris::Link(*this);
2179 /// Distribution (very bare-bones at the moment).
2209 static bool IsRedhat(enum Distro Distro) {
2210 return Distro == Fedora || (Distro >= RHEL4 && Distro <= RHEL6);
2213 static bool IsOpenSUSE(enum Distro Distro) {
2214 return Distro == OpenSUSE;
2217 static bool IsDebian(enum Distro Distro) {
2218 return Distro >= DebianLenny && Distro <= DebianJessie;
2221 static bool IsUbuntu(enum Distro Distro) {
2222 return Distro >= UbuntuHardy && Distro <= UbuntuTrusty;
2225 static Distro DetectDistro(llvm::Triple::ArchType Arch) {
2226 OwningPtr<llvm::MemoryBuffer> File;
2227 if (!llvm::MemoryBuffer::getFile("/etc/lsb-release", File)) {
2228 StringRef Data = File.get()->getBuffer();
2229 SmallVector<StringRef, 8> Lines;
2230 Data.split(Lines, "\n");
2231 Distro Version = UnknownDistro;
2232 for (unsigned i = 0, s = Lines.size(); i != s; ++i)
2233 if (Version == UnknownDistro && Lines[i].startswith("DISTRIB_CODENAME="))
2234 Version = llvm::StringSwitch<Distro>(Lines[i].substr(17))
2235 .Case("hardy", UbuntuHardy)
2236 .Case("intrepid", UbuntuIntrepid)
2237 .Case("jaunty", UbuntuJaunty)
2238 .Case("karmic", UbuntuKarmic)
2239 .Case("lucid", UbuntuLucid)
2240 .Case("maverick", UbuntuMaverick)
2241 .Case("natty", UbuntuNatty)
2242 .Case("oneiric", UbuntuOneiric)
2243 .Case("precise", UbuntuPrecise)
2244 .Case("quantal", UbuntuQuantal)
2245 .Case("raring", UbuntuRaring)
2246 .Case("saucy", UbuntuSaucy)
2247 .Case("trusty", UbuntuTrusty)
2248 .Default(UnknownDistro);
2252 if (!llvm::MemoryBuffer::getFile("/etc/redhat-release", File)) {
2253 StringRef Data = File.get()->getBuffer();
2254 if (Data.startswith("Fedora release"))
2256 else if (Data.startswith("Red Hat Enterprise Linux") &&
2257 Data.find("release 6") != StringRef::npos)
2259 else if ((Data.startswith("Red Hat Enterprise Linux") ||
2260 Data.startswith("CentOS")) &&
2261 Data.find("release 5") != StringRef::npos)
2263 else if ((Data.startswith("Red Hat Enterprise Linux") ||
2264 Data.startswith("CentOS")) &&
2265 Data.find("release 4") != StringRef::npos)
2267 return UnknownDistro;
2270 if (!llvm::MemoryBuffer::getFile("/etc/debian_version", File)) {
2271 StringRef Data = File.get()->getBuffer();
2274 else if (Data.startswith("squeeze/sid") || Data[0] == '6')
2275 return DebianSqueeze;
2276 else if (Data.startswith("wheezy/sid") || Data[0] == '7')
2277 return DebianWheezy;
2278 else if (Data.startswith("jessie/sid") || Data[0] == '8')
2279 return DebianJessie;
2280 return UnknownDistro;
2283 if (llvm::sys::fs::exists("/etc/SuSE-release"))
2286 if (llvm::sys::fs::exists("/etc/exherbo-release"))
2289 if (llvm::sys::fs::exists("/etc/arch-release"))
2292 return UnknownDistro;
2295 /// \brief Get our best guess at the multiarch triple for a target.
2297 /// Debian-based systems are starting to use a multiarch setup where they use
2298 /// a target-triple directory in the library and header search paths.
2299 /// Unfortunately, this triple does not align with the vanilla target triple,
2300 /// so we provide a rough mapping here.
2301 static std::string getMultiarchTriple(const llvm::Triple TargetTriple,
2302 StringRef SysRoot) {
2303 // For most architectures, just use whatever we have rather than trying to be
2305 switch (TargetTriple.getArch()) {
2307 return TargetTriple.str();
2309 // We use the existence of '/lib/<triple>' as a directory to detect some
2310 // common linux triples that don't quite match the Clang triple for both
2311 // 32-bit and 64-bit targets. Multiarch fixes its install triples to these
2312 // regardless of what the actual target triple is.
2313 case llvm::Triple::arm:
2314 case llvm::Triple::thumb:
2315 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2316 if (llvm::sys::fs::exists(SysRoot + "/lib/arm-linux-gnueabihf"))
2317 return "arm-linux-gnueabihf";
2319 if (llvm::sys::fs::exists(SysRoot + "/lib/arm-linux-gnueabi"))
2320 return "arm-linux-gnueabi";
2322 return TargetTriple.str();
2323 case llvm::Triple::x86:
2324 if (llvm::sys::fs::exists(SysRoot + "/lib/i386-linux-gnu"))
2325 return "i386-linux-gnu";
2326 return TargetTriple.str();
2327 case llvm::Triple::x86_64:
2328 if (llvm::sys::fs::exists(SysRoot + "/lib/x86_64-linux-gnu"))
2329 return "x86_64-linux-gnu";
2330 return TargetTriple.str();
2331 case llvm::Triple::aarch64:
2332 if (llvm::sys::fs::exists(SysRoot + "/lib/aarch64-linux-gnu"))
2333 return "aarch64-linux-gnu";
2334 return TargetTriple.str();
2335 case llvm::Triple::mips:
2336 if (llvm::sys::fs::exists(SysRoot + "/lib/mips-linux-gnu"))
2337 return "mips-linux-gnu";
2338 return TargetTriple.str();
2339 case llvm::Triple::mipsel:
2340 if (llvm::sys::fs::exists(SysRoot + "/lib/mipsel-linux-gnu"))
2341 return "mipsel-linux-gnu";
2342 return TargetTriple.str();
2343 case llvm::Triple::ppc:
2344 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc-linux-gnuspe"))
2345 return "powerpc-linux-gnuspe";
2346 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc-linux-gnu"))
2347 return "powerpc-linux-gnu";
2348 return TargetTriple.str();
2349 case llvm::Triple::ppc64:
2350 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc64-linux-gnu"))
2351 return "powerpc64-linux-gnu";
2352 case llvm::Triple::ppc64le:
2353 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc64le-linux-gnu"))
2354 return "powerpc64le-linux-gnu";
2355 return TargetTriple.str();
2359 static void addPathIfExists(Twine Path, ToolChain::path_list &Paths) {
2360 if (llvm::sys::fs::exists(Path)) Paths.push_back(Path.str());
2363 static StringRef getMultilibDir(const llvm::Triple &Triple,
2364 const ArgList &Args) {
2365 if (isMipsArch(Triple.getArch())) {
2366 // lib32 directory has a special meaning on MIPS targets.
2367 // It contains N32 ABI binaries. Use this folder if produce
2368 // code for N32 ABI only.
2369 if (hasMipsN32ABIArg(Args))
2371 return Triple.isArch32Bit() ? "lib" : "lib64";
2374 // It happens that only x86 and PPC use the 'lib32' variant of multilib, and
2375 // using that variant while targeting other architectures causes problems
2376 // because the libraries are laid out in shared system roots that can't cope
2377 // with a 'lib32' multilib search path being considered. So we only enable
2378 // them when we know we may need it.
2380 // FIXME: This is a bit of a hack. We should really unify this code for
2381 // reasoning about multilib spellings with the lib dir spellings in the
2382 // GCCInstallationDetector, but that is a more significant refactoring.
2383 if (Triple.getArch() == llvm::Triple::x86 ||
2384 Triple.getArch() == llvm::Triple::ppc)
2387 return Triple.isArch32Bit() ? "lib" : "lib64";
2390 Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
2391 : Generic_ELF(D, Triple, Args) {
2392 GCCInstallation.init(Triple, Args);
2393 llvm::Triple::ArchType Arch = Triple.getArch();
2394 std::string SysRoot = computeSysRoot();
2396 // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
2397 // least) put various tools in a triple-prefixed directory off of the parent
2398 // of the GCC installation. We use the GCC triple here to ensure that we end
2399 // up with tools that support the same amount of cross compiling as the
2400 // detected GCC installation. For example, if we find a GCC installation
2401 // targeting x86_64, but it is a bi-arch GCC installation, it can also be
2402 // used to target i386.
2403 // FIXME: This seems unlikely to be Linux-specific.
2404 ToolChain::path_list &PPaths = getProgramPaths();
2405 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
2406 GCCInstallation.getTriple().str() + "/bin").str());
2408 Linker = GetProgramPath("ld");
2410 Distro Distro = DetectDistro(Arch);
2412 if (IsOpenSUSE(Distro) || IsUbuntu(Distro)) {
2413 ExtraOpts.push_back("-z");
2414 ExtraOpts.push_back("relro");
2417 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)
2418 ExtraOpts.push_back("-X");
2420 const bool IsAndroid = Triple.getEnvironment() == llvm::Triple::Android;
2421 const bool IsMips = isMipsArch(Arch);
2423 if (IsMips && !SysRoot.empty())
2424 ExtraOpts.push_back("--sysroot=" + SysRoot);
2426 // Do not use 'gnu' hash style for Mips targets because .gnu.hash
2427 // and the MIPS ABI require .dynsym to be sorted in different ways.
2428 // .gnu.hash needs symbols to be grouped by hash code whereas the MIPS
2429 // ABI requires a mapping between the GOT and the symbol table.
2430 // Android loader does not support .gnu.hash.
2431 if (!IsMips && !IsAndroid) {
2432 if (IsRedhat(Distro) || IsOpenSUSE(Distro) ||
2433 (IsUbuntu(Distro) && Distro >= UbuntuMaverick))
2434 ExtraOpts.push_back("--hash-style=gnu");
2436 if (IsDebian(Distro) || IsOpenSUSE(Distro) || Distro == UbuntuLucid ||
2437 Distro == UbuntuJaunty || Distro == UbuntuKarmic)
2438 ExtraOpts.push_back("--hash-style=both");
2441 if (IsRedhat(Distro))
2442 ExtraOpts.push_back("--no-add-needed");
2444 if (Distro == DebianSqueeze || Distro == DebianWheezy ||
2445 Distro == DebianJessie || IsOpenSUSE(Distro) ||
2446 (IsRedhat(Distro) && Distro != RHEL4 && Distro != RHEL5) ||
2447 (IsUbuntu(Distro) && Distro >= UbuntuKarmic))
2448 ExtraOpts.push_back("--build-id");
2450 if (IsOpenSUSE(Distro))
2451 ExtraOpts.push_back("--enable-new-dtags");
2453 // The selection of paths to try here is designed to match the patterns which
2454 // the GCC driver itself uses, as this is part of the GCC-compatible driver.
2455 // This was determined by running GCC in a fake filesystem, creating all
2456 // possible permutations of these directories, and seeing which ones it added
2457 // to the link paths.
2458 path_list &Paths = getFilePaths();
2460 const std::string Multilib = getMultilibDir(Triple, Args);
2461 const std::string MultiarchTriple = getMultiarchTriple(Triple, SysRoot);
2463 // Add the multilib suffixed paths where they are available.
2464 if (GCCInstallation.isValid()) {
2465 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
2466 const std::string &LibPath = GCCInstallation.getParentLibPath();
2468 // Sourcery CodeBench MIPS toolchain holds some libraries under
2469 // a biarch-like suffix of the GCC installation.
2471 // FIXME: It would be cleaner to model this as a variant of bi-arch. IE,
2472 // instead of a '64' biarch suffix it would be 'el' or something.
2473 if (IsAndroid && IsMips && isMips32r2(Args)) {
2474 assert(GCCInstallation.getBiarchSuffix().empty() &&
2475 "Unexpected bi-arch suffix");
2476 addPathIfExists(GCCInstallation.getInstallPath() + "/mips-r2", Paths);
2478 addPathIfExists((GCCInstallation.getInstallPath() +
2479 GCCInstallation.getMIPSABIDirSuffix() +
2480 GCCInstallation.getBiarchSuffix()),
2484 // GCC cross compiling toolchains will install target libraries which ship
2485 // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as
2486 // any part of the GCC installation in
2487 // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat
2488 // debatable, but is the reality today. We need to search this tree even
2489 // when we have a sysroot somewhere else. It is the responsibility of
2490 // whomever is doing the cross build targetting a sysroot using a GCC
2491 // installation that is *not* within the system root to ensure two things:
2493 // 1) Any DSOs that are linked in from this tree or from the install path
2494 // above must be preasant on the system root and found via an
2495 // appropriate rpath.
2496 // 2) There must not be libraries installed into
2497 // <prefix>/<triple>/<libdir> unless they should be preferred over
2498 // those within the system root.
2500 // Note that this matches the GCC behavior. See the below comment for where
2501 // Clang diverges from GCC's behavior.
2502 addPathIfExists(LibPath + "/../" + GCCTriple.str() + "/lib/../" + Multilib +
2503 GCCInstallation.getMIPSABIDirSuffix(),
2506 // If the GCC installation we found is inside of the sysroot, we want to
2507 // prefer libraries installed in the parent prefix of the GCC installation.
2508 // It is important to *not* use these paths when the GCC installation is
2509 // outside of the system root as that can pick up unintended libraries.
2510 // This usually happens when there is an external cross compiler on the
2511 // host system, and a more minimal sysroot available that is the target of
2512 // the cross. Note that GCC does include some of these directories in some
2513 // configurations but this seems somewhere between questionable and simply
2515 if (StringRef(LibPath).startswith(SysRoot)) {
2516 addPathIfExists(LibPath + "/" + MultiarchTriple, Paths);
2517 addPathIfExists(LibPath + "/../" + Multilib, Paths);
2520 addPathIfExists(SysRoot + "/lib/" + MultiarchTriple, Paths);
2521 addPathIfExists(SysRoot + "/lib/../" + Multilib, Paths);
2522 addPathIfExists(SysRoot + "/usr/lib/" + MultiarchTriple, Paths);
2523 addPathIfExists(SysRoot + "/usr/lib/../" + Multilib, Paths);
2525 // Try walking via the GCC triple path in case of biarch or multiarch GCC
2526 // installations with strange symlinks.
2527 if (GCCInstallation.isValid()) {
2528 addPathIfExists(SysRoot + "/usr/lib/" + GCCInstallation.getTriple().str() +
2529 "/../../" + Multilib, Paths);
2531 // Add the non-multilib suffixed paths (if potentially different).
2532 const std::string &LibPath = GCCInstallation.getParentLibPath();
2533 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
2534 if (!GCCInstallation.getBiarchSuffix().empty())
2535 addPathIfExists(GCCInstallation.getInstallPath() +
2536 GCCInstallation.getMIPSABIDirSuffix(), Paths);
2538 // See comments above on the multilib variant for details of why this is
2539 // included even from outside the sysroot.
2540 addPathIfExists(LibPath + "/../" + GCCTriple.str() +
2541 "/lib" + GCCInstallation.getMIPSABIDirSuffix(), Paths);
2543 // See comments above on the multilib variant for details of why this is
2544 // only included from within the sysroot.
2545 if (StringRef(LibPath).startswith(SysRoot))
2546 addPathIfExists(LibPath, Paths);
2548 addPathIfExists(SysRoot + "/lib", Paths);
2549 addPathIfExists(SysRoot + "/usr/lib", Paths);
2552 bool FreeBSD::HasNativeLLVMSupport() const {
2556 bool Linux::HasNativeLLVMSupport() const {
2560 Tool *Linux::buildLinker() const {
2561 return new tools::gnutools::Link(*this);
2564 Tool *Linux::buildAssembler() const {
2565 return new tools::gnutools::Assemble(*this);
2568 void Linux::addClangTargetOptions(const ArgList &DriverArgs,
2569 ArgStringList &CC1Args) const {
2570 const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion();
2571 bool UseInitArrayDefault =
2572 !V.isOlderThan(4, 7, 0) ||
2573 getTriple().getArch() == llvm::Triple::aarch64 ||
2574 getTriple().getEnvironment() == llvm::Triple::Android;
2575 if (DriverArgs.hasFlag(options::OPT_fuse_init_array,
2576 options::OPT_fno_use_init_array,
2577 UseInitArrayDefault))
2578 CC1Args.push_back("-fuse-init-array");
2581 std::string Linux::computeSysRoot() const {
2582 if (!getDriver().SysRoot.empty())
2583 return getDriver().SysRoot;
2585 if (!GCCInstallation.isValid() || !isMipsArch(getTriple().getArch()))
2586 return std::string();
2588 // Standalone MIPS toolchains use different names for sysroot folder
2589 // and put it into different places. Here we try to check some known
2592 const StringRef InstallDir = GCCInstallation.getInstallPath();
2593 const StringRef TripleStr = GCCInstallation.getTriple().str();
2594 const StringRef MIPSABIDirSuffix = GCCInstallation.getMIPSABIDirSuffix();
2596 std::string Path = (InstallDir + "/../../../../" + TripleStr + "/libc" +
2597 MIPSABIDirSuffix).str();
2599 if (llvm::sys::fs::exists(Path))
2602 Path = (InstallDir + "/../../../../sysroot" + MIPSABIDirSuffix).str();
2604 if (llvm::sys::fs::exists(Path))
2607 return std::string();
2610 void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
2611 ArgStringList &CC1Args) const {
2612 const Driver &D = getDriver();
2613 std::string SysRoot = computeSysRoot();
2615 if (DriverArgs.hasArg(options::OPT_nostdinc))
2618 if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
2619 addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include");
2621 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
2622 SmallString<128> P(D.ResourceDir);
2623 llvm::sys::path::append(P, "include");
2624 addSystemInclude(DriverArgs, CC1Args, P.str());
2627 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
2630 // Check for configure-time C include directories.
2631 StringRef CIncludeDirs(C_INCLUDE_DIRS);
2632 if (CIncludeDirs != "") {
2633 SmallVector<StringRef, 5> dirs;
2634 CIncludeDirs.split(dirs, ":");
2635 for (SmallVectorImpl<StringRef>::iterator I = dirs.begin(), E = dirs.end();
2637 StringRef Prefix = llvm::sys::path::is_absolute(*I) ? SysRoot : "";
2638 addExternCSystemInclude(DriverArgs, CC1Args, Prefix + *I);
2643 // Lacking those, try to detect the correct set of system includes for the
2646 // Sourcery CodeBench and modern FSF Mips toolchains put extern C
2647 // system includes under three additional directories.
2648 if (GCCInstallation.isValid() && isMipsArch(getTriple().getArch())) {
2649 addExternCSystemIncludeIfExists(
2650 DriverArgs, CC1Args, GCCInstallation.getInstallPath() + "/include");
2652 addExternCSystemIncludeIfExists(
2653 DriverArgs, CC1Args,
2654 GCCInstallation.getInstallPath() + "/../../../../" +
2655 GCCInstallation.getTriple().str() + "/libc/usr/include");
2657 addExternCSystemIncludeIfExists(
2658 DriverArgs, CC1Args,
2659 GCCInstallation.getInstallPath() + "/../../../../sysroot/usr/include");
2662 // Implement generic Debian multiarch support.
2663 const StringRef X86_64MultiarchIncludeDirs[] = {
2664 "/usr/include/x86_64-linux-gnu",
2666 // FIXME: These are older forms of multiarch. It's not clear that they're
2667 // in use in any released version of Debian, so we should consider
2669 "/usr/include/i686-linux-gnu/64", "/usr/include/i486-linux-gnu/64"
2671 const StringRef X86MultiarchIncludeDirs[] = {
2672 "/usr/include/i386-linux-gnu",
2674 // FIXME: These are older forms of multiarch. It's not clear that they're
2675 // in use in any released version of Debian, so we should consider
2677 "/usr/include/x86_64-linux-gnu/32", "/usr/include/i686-linux-gnu",
2678 "/usr/include/i486-linux-gnu"
2680 const StringRef AArch64MultiarchIncludeDirs[] = {
2681 "/usr/include/aarch64-linux-gnu"
2683 const StringRef ARMMultiarchIncludeDirs[] = {
2684 "/usr/include/arm-linux-gnueabi"
2686 const StringRef ARMHFMultiarchIncludeDirs[] = {
2687 "/usr/include/arm-linux-gnueabihf"
2689 const StringRef MIPSMultiarchIncludeDirs[] = {
2690 "/usr/include/mips-linux-gnu"
2692 const StringRef MIPSELMultiarchIncludeDirs[] = {
2693 "/usr/include/mipsel-linux-gnu"
2695 const StringRef PPCMultiarchIncludeDirs[] = {
2696 "/usr/include/powerpc-linux-gnu"
2698 const StringRef PPC64MultiarchIncludeDirs[] = {
2699 "/usr/include/powerpc64-linux-gnu"
2701 ArrayRef<StringRef> MultiarchIncludeDirs;
2702 if (getTriple().getArch() == llvm::Triple::x86_64) {
2703 MultiarchIncludeDirs = X86_64MultiarchIncludeDirs;
2704 } else if (getTriple().getArch() == llvm::Triple::x86) {
2705 MultiarchIncludeDirs = X86MultiarchIncludeDirs;
2706 } else if (getTriple().getArch() == llvm::Triple::aarch64) {
2707 MultiarchIncludeDirs = AArch64MultiarchIncludeDirs;
2708 } else if (getTriple().getArch() == llvm::Triple::arm) {
2709 if (getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
2710 MultiarchIncludeDirs = ARMHFMultiarchIncludeDirs;
2712 MultiarchIncludeDirs = ARMMultiarchIncludeDirs;
2713 } else if (getTriple().getArch() == llvm::Triple::mips) {
2714 MultiarchIncludeDirs = MIPSMultiarchIncludeDirs;
2715 } else if (getTriple().getArch() == llvm::Triple::mipsel) {
2716 MultiarchIncludeDirs = MIPSELMultiarchIncludeDirs;
2717 } else if (getTriple().getArch() == llvm::Triple::ppc) {
2718 MultiarchIncludeDirs = PPCMultiarchIncludeDirs;
2719 } else if (getTriple().getArch() == llvm::Triple::ppc64) {
2720 MultiarchIncludeDirs = PPC64MultiarchIncludeDirs;
2722 for (ArrayRef<StringRef>::iterator I = MultiarchIncludeDirs.begin(),
2723 E = MultiarchIncludeDirs.end();
2725 if (llvm::sys::fs::exists(SysRoot + *I)) {
2726 addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + *I);
2731 if (getTriple().getOS() == llvm::Triple::RTEMS)
2734 // Add an include of '/include' directly. This isn't provided by default by
2735 // system GCCs, but is often used with cross-compiling GCCs, and harmless to
2736 // add even when Clang is acting as-if it were a system compiler.
2737 addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/include");
2739 addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include");
2742 /// \brief Helper to add the three variant paths for a libstdc++ installation.
2743 /*static*/ bool Linux::addLibStdCXXIncludePaths(Twine Base, Twine TargetArchDir,
2744 const ArgList &DriverArgs,
2745 ArgStringList &CC1Args) {
2746 if (!llvm::sys::fs::exists(Base))
2748 addSystemInclude(DriverArgs, CC1Args, Base);
2749 addSystemInclude(DriverArgs, CC1Args, Base + "/" + TargetArchDir);
2750 addSystemInclude(DriverArgs, CC1Args, Base + "/backward");
2754 /// \brief Helper to add an extra variant path for an (Ubuntu) multilib
2755 /// libstdc++ installation.
2756 /*static*/ bool Linux::addLibStdCXXIncludePaths(Twine Base, Twine Suffix,
2757 Twine TargetArchDir,
2759 Twine MIPSABIDirSuffix,
2760 const ArgList &DriverArgs,
2761 ArgStringList &CC1Args) {
2762 if (!addLibStdCXXIncludePaths(Base + Suffix,
2763 TargetArchDir + MIPSABIDirSuffix + BiarchSuffix,
2764 DriverArgs, CC1Args))
2767 addSystemInclude(DriverArgs, CC1Args, Base + "/" + TargetArchDir + Suffix
2768 + MIPSABIDirSuffix + BiarchSuffix);
2772 void Linux::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2773 ArgStringList &CC1Args) const {
2774 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2775 DriverArgs.hasArg(options::OPT_nostdincxx))
2778 // Check if libc++ has been enabled and provide its include paths if so.
2779 if (GetCXXStdlibType(DriverArgs) == ToolChain::CST_Libcxx) {
2780 // libc++ is always installed at a fixed path on Linux currently.
2781 addSystemInclude(DriverArgs, CC1Args,
2782 getDriver().SysRoot + "/usr/include/c++/v1");
2786 // We need a detected GCC installation on Linux to provide libstdc++'s
2787 // headers. We handled the libc++ case above.
2788 if (!GCCInstallation.isValid())
2791 // By default, look for the C++ headers in an include directory adjacent to
2792 // the lib directory of the GCC installation. Note that this is expect to be
2793 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
2794 StringRef LibDir = GCCInstallation.getParentLibPath();
2795 StringRef InstallDir = GCCInstallation.getInstallPath();
2796 StringRef TripleStr = GCCInstallation.getTriple().str();
2797 StringRef MIPSABIDirSuffix = GCCInstallation.getMIPSABIDirSuffix();
2798 StringRef BiarchSuffix = GCCInstallation.getBiarchSuffix();
2799 const GCCVersion &Version = GCCInstallation.getVersion();
2801 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include",
2802 "/c++/" + Version.Text, TripleStr, BiarchSuffix,
2803 MIPSABIDirSuffix, DriverArgs, CC1Args))
2806 const std::string IncludePathCandidates[] = {
2807 // Gentoo is weird and places its headers inside the GCC install, so if the
2808 // first attempt to find the headers fails, try these patterns.
2809 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
2811 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
2812 // Android standalone toolchain has C++ headers in yet another place.
2813 LibDir.str() + "/../" + TripleStr.str() + "/include/c++/" + Version.Text,
2814 // Freescale SDK C++ headers are directly in <sysroot>/usr/include/c++,
2815 // without a subdirectory corresponding to the gcc version.
2816 LibDir.str() + "/../include/c++",
2819 for (unsigned i = 0; i < llvm::array_lengthof(IncludePathCandidates); ++i) {
2820 if (addLibStdCXXIncludePaths(IncludePathCandidates[i],
2821 TripleStr + MIPSABIDirSuffix + BiarchSuffix,
2822 DriverArgs, CC1Args))
2827 bool Linux::isPIEDefault() const {
2828 return getSanitizerArgs().hasZeroBaseShadow();
2831 /// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly.
2833 DragonFly::DragonFly(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
2834 : Generic_ELF(D, Triple, Args) {
2836 // Path mangling to find libexec
2837 getProgramPaths().push_back(getDriver().getInstalledDir());
2838 if (getDriver().getInstalledDir() != getDriver().Dir)
2839 getProgramPaths().push_back(getDriver().Dir);
2841 getFilePaths().push_back(getDriver().Dir + "/../lib");
2842 getFilePaths().push_back("/usr/lib");
2843 if (llvm::sys::fs::exists("/usr/lib/gcc47"))
2844 getFilePaths().push_back("/usr/lib/gcc47");
2846 getFilePaths().push_back("/usr/lib/gcc44");
2849 Tool *DragonFly::buildAssembler() const {
2850 return new tools::dragonfly::Assemble(*this);
2853 Tool *DragonFly::buildLinker() const {
2854 return new tools::dragonfly::Link(*this);
2858 /// XCore tool chain
2859 XCore::XCore(const Driver &D, const llvm::Triple &Triple,
2860 const ArgList &Args) : ToolChain(D, Triple, Args) {
2861 // ProgramPaths are found via 'PATH' environment variable.
2864 Tool *XCore::buildAssembler() const {
2865 return new tools::XCore::Assemble(*this);
2868 Tool *XCore::buildLinker() const {
2869 return new tools::XCore::Link(*this);
2872 bool XCore::isPICDefault() const {
2876 bool XCore::isPIEDefault() const {
2880 bool XCore::isPICDefaultForced() const {
2884 bool XCore::SupportsProfiling() const {
2888 bool XCore::hasBlocksRuntime() const {
2893 void XCore::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
2894 ArgStringList &CC1Args) const {
2895 if (DriverArgs.hasArg(options::OPT_nostdinc) ||
2896 DriverArgs.hasArg(options::OPT_nostdlibinc))
2898 if (const char *cl_include_dir = getenv("XCC_C_INCLUDE_PATH")) {
2899 SmallVector<StringRef, 4> Dirs;
2900 const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator,'\0'};
2901 StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
2902 ArrayRef<StringRef> DirVec(Dirs);
2903 addSystemIncludes(DriverArgs, CC1Args, DirVec);
2907 void XCore::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
2908 llvm::opt::ArgStringList &CC1Args) const {
2909 CC1Args.push_back("-nostdsysteminc");
2912 void XCore::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2913 ArgStringList &CC1Args) const {
2914 if (DriverArgs.hasArg(options::OPT_nostdinc) ||
2915 DriverArgs.hasArg(options::OPT_nostdlibinc))
2917 if (const char *cl_include_dir = getenv("XCC_CPLUS_INCLUDE_PATH")) {
2918 SmallVector<StringRef, 4> Dirs;
2919 const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator,'\0'};
2920 StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
2921 ArrayRef<StringRef> DirVec(Dirs);
2922 addSystemIncludes(DriverArgs, CC1Args, DirVec);
2926 void XCore::AddCXXStdlibLibArgs(const ArgList &Args,
2927 ArgStringList &CmdArgs) const {
2928 // We don't output any lib args. This is handled by xcc.