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 void Generic_GCC::addClangTargetOptions(const ArgList &DriverArgs,
1654 ArgStringList &CC1Args) const {
1655 const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion();
1656 bool UseInitArrayDefault =
1657 getTriple().getArch() == llvm::Triple::aarch64 ||
1658 (getTriple().getOS() == llvm::Triple::Linux && (
1659 !V.isOlderThan(4, 7, 0) ||
1660 getTriple().getEnvironment() == llvm::Triple::Android));
1662 if (DriverArgs.hasFlag(options::OPT_fuse_init_array,
1663 options::OPT_fno_use_init_array,
1664 UseInitArrayDefault))
1665 CC1Args.push_back("-fuse-init-array");
1668 /// Hexagon Toolchain
1670 std::string Hexagon_TC::GetGnuDir(const std::string &InstalledDir) {
1672 // Locate the rest of the toolchain ...
1673 if (strlen(GCC_INSTALL_PREFIX))
1674 return std::string(GCC_INSTALL_PREFIX);
1676 std::string InstallRelDir = InstalledDir + "/../../gnu";
1677 if (llvm::sys::fs::exists(InstallRelDir))
1678 return InstallRelDir;
1680 std::string PrefixRelDir = std::string(LLVM_PREFIX) + "/../gnu";
1681 if (llvm::sys::fs::exists(PrefixRelDir))
1682 return PrefixRelDir;
1684 return InstallRelDir;
1687 static void GetHexagonLibraryPaths(
1688 const ArgList &Args,
1689 const std::string Ver,
1690 const std::string MarchString,
1691 const std::string &InstalledDir,
1692 ToolChain::path_list *LibPaths)
1694 bool buildingLib = Args.hasArg(options::OPT_shared);
1696 //----------------------------------------------------------------------------
1698 //----------------------------------------------------------------------------
1700 it = Args.filtered_begin(options::OPT_L),
1701 ie = Args.filtered_end();
1704 for (unsigned i = 0, e = (*it)->getNumValues(); i != e; ++i)
1705 LibPaths->push_back((*it)->getValue(i));
1708 //----------------------------------------------------------------------------
1709 // Other standard paths
1710 //----------------------------------------------------------------------------
1711 const std::string MarchSuffix = "/" + MarchString;
1712 const std::string G0Suffix = "/G0";
1713 const std::string MarchG0Suffix = MarchSuffix + G0Suffix;
1714 const std::string RootDir = Hexagon_TC::GetGnuDir(InstalledDir) + "/";
1716 // lib/gcc/hexagon/...
1717 std::string LibGCCHexagonDir = RootDir + "lib/gcc/hexagon/";
1719 LibPaths->push_back(LibGCCHexagonDir + Ver + MarchG0Suffix);
1720 LibPaths->push_back(LibGCCHexagonDir + Ver + G0Suffix);
1722 LibPaths->push_back(LibGCCHexagonDir + Ver + MarchSuffix);
1723 LibPaths->push_back(LibGCCHexagonDir + Ver);
1726 LibPaths->push_back(RootDir + "lib/gcc");
1729 std::string HexagonLibDir = RootDir + "hexagon/lib";
1731 LibPaths->push_back(HexagonLibDir + MarchG0Suffix);
1732 LibPaths->push_back(HexagonLibDir + G0Suffix);
1734 LibPaths->push_back(HexagonLibDir + MarchSuffix);
1735 LibPaths->push_back(HexagonLibDir);
1738 Hexagon_TC::Hexagon_TC(const Driver &D, const llvm::Triple &Triple,
1739 const ArgList &Args)
1740 : Linux(D, Triple, Args) {
1741 const std::string InstalledDir(getDriver().getInstalledDir());
1742 const std::string GnuDir = Hexagon_TC::GetGnuDir(InstalledDir);
1744 // Note: Generic_GCC::Generic_GCC adds InstalledDir and getDriver().Dir to
1746 const std::string BinDir(GnuDir + "/bin");
1747 if (llvm::sys::fs::exists(BinDir))
1748 getProgramPaths().push_back(BinDir);
1750 // Determine version of GCC libraries and headers to use.
1751 const std::string HexagonDir(GnuDir + "/lib/gcc/hexagon");
1752 llvm::error_code ec;
1753 GCCVersion MaxVersion= GCCVersion::Parse("0.0.0");
1754 for (llvm::sys::fs::directory_iterator di(HexagonDir, ec), de;
1755 !ec && di != de; di = di.increment(ec)) {
1756 GCCVersion cv = GCCVersion::Parse(llvm::sys::path::filename(di->path()));
1757 if (MaxVersion < cv)
1760 GCCLibAndIncVersion = MaxVersion;
1762 ToolChain::path_list *LibPaths= &getFilePaths();
1764 // Remove paths added by Linux toolchain. Currently Hexagon_TC really targets
1765 // 'elf' OS type, so the Linux paths are not appropriate. When we actually
1766 // support 'linux' we'll need to fix this up
1769 GetHexagonLibraryPaths(
1771 GetGCCLibAndIncVersion(),
1777 Hexagon_TC::~Hexagon_TC() {
1780 Tool *Hexagon_TC::buildAssembler() const {
1781 return new tools::hexagon::Assemble(*this);
1784 Tool *Hexagon_TC::buildLinker() const {
1785 return new tools::hexagon::Link(*this);
1788 void Hexagon_TC::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
1789 ArgStringList &CC1Args) const {
1790 const Driver &D = getDriver();
1792 if (DriverArgs.hasArg(options::OPT_nostdinc) ||
1793 DriverArgs.hasArg(options::OPT_nostdlibinc))
1796 std::string Ver(GetGCCLibAndIncVersion());
1797 std::string GnuDir = Hexagon_TC::GetGnuDir(D.InstalledDir);
1798 std::string HexagonDir(GnuDir + "/lib/gcc/hexagon/" + Ver);
1799 addExternCSystemInclude(DriverArgs, CC1Args, HexagonDir + "/include");
1800 addExternCSystemInclude(DriverArgs, CC1Args, HexagonDir + "/include-fixed");
1801 addExternCSystemInclude(DriverArgs, CC1Args, GnuDir + "/hexagon/include");
1804 void Hexagon_TC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
1805 ArgStringList &CC1Args) const {
1807 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
1808 DriverArgs.hasArg(options::OPT_nostdincxx))
1811 const Driver &D = getDriver();
1812 std::string Ver(GetGCCLibAndIncVersion());
1813 SmallString<128> IncludeDir(Hexagon_TC::GetGnuDir(D.InstalledDir));
1815 llvm::sys::path::append(IncludeDir, "hexagon/include/c++/");
1816 llvm::sys::path::append(IncludeDir, Ver);
1817 addSystemInclude(DriverArgs, CC1Args, IncludeDir.str());
1820 ToolChain::CXXStdlibType
1821 Hexagon_TC::GetCXXStdlibType(const ArgList &Args) const {
1822 Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
1824 return ToolChain::CST_Libstdcxx;
1826 StringRef Value = A->getValue();
1827 if (Value != "libstdc++") {
1828 getDriver().Diag(diag::err_drv_invalid_stdlib_name)
1829 << A->getAsString(Args);
1832 return ToolChain::CST_Libstdcxx;
1835 static int getHexagonVersion(const ArgList &Args) {
1836 Arg *A = Args.getLastArg(options::OPT_march_EQ, options::OPT_mcpu_EQ);
1837 // Select the default CPU (v4) if none was given.
1841 // FIXME: produce errors if we cannot parse the version.
1842 StringRef WhichHexagon = A->getValue();
1843 if (WhichHexagon.startswith("hexagonv")) {
1845 if (!WhichHexagon.substr(sizeof("hexagonv") - 1).getAsInteger(10, Val))
1848 if (WhichHexagon.startswith("v")) {
1850 if (!WhichHexagon.substr(1).getAsInteger(10, Val))
1854 // FIXME: should probably be an error.
1858 StringRef Hexagon_TC::GetTargetCPU(const ArgList &Args)
1860 int V = getHexagonVersion(Args);
1861 // FIXME: We don't support versions < 4. We should error on them.
1864 llvm_unreachable("Unexpected version");
1879 /// TCEToolChain - A tool chain using the llvm bitcode tools to perform
1880 /// all subcommands. See http://tce.cs.tut.fi for our peculiar target.
1881 /// Currently does not support anything else but compilation.
1883 TCEToolChain::TCEToolChain(const Driver &D, const llvm::Triple& Triple,
1884 const ArgList &Args)
1885 : ToolChain(D, Triple, Args) {
1886 // Path mangling to find libexec
1887 std::string Path(getDriver().Dir);
1889 Path += "/../libexec";
1890 getProgramPaths().push_back(Path);
1893 TCEToolChain::~TCEToolChain() {
1896 bool TCEToolChain::IsMathErrnoDefault() const {
1900 bool TCEToolChain::isPICDefault() const {
1904 bool TCEToolChain::isPIEDefault() const {
1908 bool TCEToolChain::isPICDefaultForced() const {
1912 /// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly.
1914 OpenBSD::OpenBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
1915 : Generic_ELF(D, Triple, Args) {
1916 getFilePaths().push_back(getDriver().Dir + "/../lib");
1917 getFilePaths().push_back("/usr/lib");
1920 Tool *OpenBSD::buildAssembler() const {
1921 return new tools::openbsd::Assemble(*this);
1924 Tool *OpenBSD::buildLinker() const {
1925 return new tools::openbsd::Link(*this);
1928 /// Bitrig - Bitrig tool chain which can call as(1) and ld(1) directly.
1930 Bitrig::Bitrig(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
1931 : Generic_ELF(D, Triple, Args) {
1932 getFilePaths().push_back(getDriver().Dir + "/../lib");
1933 getFilePaths().push_back("/usr/lib");
1936 Tool *Bitrig::buildAssembler() const {
1937 return new tools::bitrig::Assemble(*this);
1940 Tool *Bitrig::buildLinker() const {
1941 return new tools::bitrig::Link(*this);
1944 void Bitrig::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
1945 ArgStringList &CC1Args) const {
1946 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
1947 DriverArgs.hasArg(options::OPT_nostdincxx))
1950 switch (GetCXXStdlibType(DriverArgs)) {
1951 case ToolChain::CST_Libcxx:
1952 addSystemInclude(DriverArgs, CC1Args,
1953 getDriver().SysRoot + "/usr/include/c++/");
1955 case ToolChain::CST_Libstdcxx:
1956 addSystemInclude(DriverArgs, CC1Args,
1957 getDriver().SysRoot + "/usr/include/c++/stdc++");
1958 addSystemInclude(DriverArgs, CC1Args,
1959 getDriver().SysRoot + "/usr/include/c++/stdc++/backward");
1961 StringRef Triple = getTriple().str();
1962 if (Triple.startswith("amd64"))
1963 addSystemInclude(DriverArgs, CC1Args,
1964 getDriver().SysRoot + "/usr/include/c++/stdc++/x86_64" +
1967 addSystemInclude(DriverArgs, CC1Args,
1968 getDriver().SysRoot + "/usr/include/c++/stdc++/" +
1974 void Bitrig::AddCXXStdlibLibArgs(const ArgList &Args,
1975 ArgStringList &CmdArgs) const {
1976 switch (GetCXXStdlibType(Args)) {
1977 case ToolChain::CST_Libcxx:
1978 CmdArgs.push_back("-lc++");
1979 CmdArgs.push_back("-lcxxrt");
1980 // Include supc++ to provide Unwind until provided by libcxx.
1981 CmdArgs.push_back("-lgcc");
1983 case ToolChain::CST_Libstdcxx:
1984 CmdArgs.push_back("-lstdc++");
1989 /// FreeBSD - FreeBSD tool chain which can call as(1) and ld(1) directly.
1991 FreeBSD::FreeBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
1992 : Generic_ELF(D, Triple, Args) {
1994 // When targeting 32-bit platforms, look for '/usr/lib32/crt1.o' and fall
1995 // back to '/usr/lib' if it doesn't exist.
1996 if ((Triple.getArch() == llvm::Triple::x86 ||
1997 Triple.getArch() == llvm::Triple::ppc) &&
1998 llvm::sys::fs::exists(getDriver().SysRoot + "/usr/lib32/crt1.o"))
1999 getFilePaths().push_back(getDriver().SysRoot + "/usr/lib32");
2001 getFilePaths().push_back(getDriver().SysRoot + "/usr/lib");
2004 ToolChain::CXXStdlibType
2005 FreeBSD::GetCXXStdlibType(const ArgList &Args) const {
2006 if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
2007 StringRef Value = A->getValue();
2008 if (Value == "libstdc++")
2009 return ToolChain::CST_Libstdcxx;
2010 if (Value == "libc++")
2011 return ToolChain::CST_Libcxx;
2013 getDriver().Diag(diag::err_drv_invalid_stdlib_name)
2014 << A->getAsString(Args);
2016 if (getTriple().getOSMajorVersion() >= 10)
2017 return ToolChain::CST_Libcxx;
2018 return ToolChain::CST_Libstdcxx;
2021 void FreeBSD::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2022 ArgStringList &CC1Args) const {
2023 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2024 DriverArgs.hasArg(options::OPT_nostdincxx))
2027 switch (GetCXXStdlibType(DriverArgs)) {
2028 case ToolChain::CST_Libcxx:
2029 addSystemInclude(DriverArgs, CC1Args,
2030 getDriver().SysRoot + "/usr/include/c++/v1");
2032 case ToolChain::CST_Libstdcxx:
2033 addSystemInclude(DriverArgs, CC1Args,
2034 getDriver().SysRoot + "/usr/include/c++/4.2");
2035 addSystemInclude(DriverArgs, CC1Args,
2036 getDriver().SysRoot + "/usr/include/c++/4.2/backward");
2041 Tool *FreeBSD::buildAssembler() const {
2042 return new tools::freebsd::Assemble(*this);
2045 Tool *FreeBSD::buildLinker() const {
2046 return new tools::freebsd::Link(*this);
2049 bool FreeBSD::UseSjLjExceptions() const {
2050 // FreeBSD uses SjLj exceptions on ARM oabi.
2051 switch (getTriple().getEnvironment()) {
2052 case llvm::Triple::GNUEABIHF:
2053 case llvm::Triple::GNUEABI:
2054 case llvm::Triple::EABI:
2058 return (getTriple().getArch() == llvm::Triple::arm ||
2059 getTriple().getArch() == llvm::Triple::thumb);
2063 /// NetBSD - NetBSD tool chain which can call as(1) and ld(1) directly.
2065 NetBSD::NetBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
2066 : Generic_ELF(D, Triple, Args) {
2068 if (getDriver().UseStdLib) {
2069 // When targeting a 32-bit platform, try the special directory used on
2070 // 64-bit hosts, and only fall back to the main library directory if that
2072 // FIXME: It'd be nicer to test if this directory exists, but I'm not sure
2073 // what all logic is needed to emulate the '=' prefix here.
2074 if (Triple.getArch() == llvm::Triple::x86)
2075 getFilePaths().push_back("=/usr/lib/i386");
2077 getFilePaths().push_back("=/usr/lib");
2081 Tool *NetBSD::buildAssembler() const {
2082 return new tools::netbsd::Assemble(*this);
2085 Tool *NetBSD::buildLinker() const {
2086 return new tools::netbsd::Link(*this);
2089 ToolChain::CXXStdlibType
2090 NetBSD::GetCXXStdlibType(const ArgList &Args) const {
2091 if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
2092 StringRef Value = A->getValue();
2093 if (Value == "libstdc++")
2094 return ToolChain::CST_Libstdcxx;
2095 if (Value == "libc++")
2096 return ToolChain::CST_Libcxx;
2098 getDriver().Diag(diag::err_drv_invalid_stdlib_name)
2099 << A->getAsString(Args);
2102 unsigned Major, Minor, Micro;
2103 getTriple().getOSVersion(Major, Minor, Micro);
2104 if (Major >= 7 || (Major == 6 && Minor == 99 && Micro >= 23) || Major == 0) {
2105 if (getArch() == llvm::Triple::x86 || getArch() == llvm::Triple::x86_64)
2106 return ToolChain::CST_Libcxx;
2108 return ToolChain::CST_Libstdcxx;
2111 void NetBSD::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2112 ArgStringList &CC1Args) const {
2113 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2114 DriverArgs.hasArg(options::OPT_nostdincxx))
2117 switch (GetCXXStdlibType(DriverArgs)) {
2118 case ToolChain::CST_Libcxx:
2119 addSystemInclude(DriverArgs, CC1Args,
2120 getDriver().SysRoot + "/usr/include/c++/");
2122 case ToolChain::CST_Libstdcxx:
2123 addSystemInclude(DriverArgs, CC1Args,
2124 getDriver().SysRoot + "/usr/include/g++");
2125 addSystemInclude(DriverArgs, CC1Args,
2126 getDriver().SysRoot + "/usr/include/g++/backward");
2131 /// Minix - Minix tool chain which can call as(1) and ld(1) directly.
2133 Minix::Minix(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
2134 : Generic_ELF(D, Triple, Args) {
2135 getFilePaths().push_back(getDriver().Dir + "/../lib");
2136 getFilePaths().push_back("/usr/lib");
2139 Tool *Minix::buildAssembler() const {
2140 return new tools::minix::Assemble(*this);
2143 Tool *Minix::buildLinker() const {
2144 return new tools::minix::Link(*this);
2147 /// AuroraUX - AuroraUX tool chain which can call as(1) and ld(1) directly.
2149 AuroraUX::AuroraUX(const Driver &D, const llvm::Triple& Triple,
2150 const ArgList &Args)
2151 : Generic_GCC(D, Triple, Args) {
2153 getProgramPaths().push_back(getDriver().getInstalledDir());
2154 if (getDriver().getInstalledDir() != getDriver().Dir)
2155 getProgramPaths().push_back(getDriver().Dir);
2157 getFilePaths().push_back(getDriver().Dir + "/../lib");
2158 getFilePaths().push_back("/usr/lib");
2159 getFilePaths().push_back("/usr/sfw/lib");
2160 getFilePaths().push_back("/opt/gcc4/lib");
2161 getFilePaths().push_back("/opt/gcc4/lib/gcc/i386-pc-solaris2.11/4.2.4");
2165 Tool *AuroraUX::buildAssembler() const {
2166 return new tools::auroraux::Assemble(*this);
2169 Tool *AuroraUX::buildLinker() const {
2170 return new tools::auroraux::Link(*this);
2173 /// Solaris - Solaris tool chain which can call as(1) and ld(1) directly.
2175 Solaris::Solaris(const Driver &D, const llvm::Triple& Triple,
2176 const ArgList &Args)
2177 : Generic_GCC(D, Triple, Args) {
2179 getProgramPaths().push_back(getDriver().getInstalledDir());
2180 if (getDriver().getInstalledDir() != getDriver().Dir)
2181 getProgramPaths().push_back(getDriver().Dir);
2183 getFilePaths().push_back(getDriver().Dir + "/../lib");
2184 getFilePaths().push_back("/usr/lib");
2187 Tool *Solaris::buildAssembler() const {
2188 return new tools::solaris::Assemble(*this);
2191 Tool *Solaris::buildLinker() const {
2192 return new tools::solaris::Link(*this);
2195 /// Distribution (very bare-bones at the moment).
2225 static bool IsRedhat(enum Distro Distro) {
2226 return Distro == Fedora || (Distro >= RHEL4 && Distro <= RHEL6);
2229 static bool IsOpenSUSE(enum Distro Distro) {
2230 return Distro == OpenSUSE;
2233 static bool IsDebian(enum Distro Distro) {
2234 return Distro >= DebianLenny && Distro <= DebianJessie;
2237 static bool IsUbuntu(enum Distro Distro) {
2238 return Distro >= UbuntuHardy && Distro <= UbuntuTrusty;
2241 static Distro DetectDistro(llvm::Triple::ArchType Arch) {
2242 OwningPtr<llvm::MemoryBuffer> File;
2243 if (!llvm::MemoryBuffer::getFile("/etc/lsb-release", File)) {
2244 StringRef Data = File.get()->getBuffer();
2245 SmallVector<StringRef, 8> Lines;
2246 Data.split(Lines, "\n");
2247 Distro Version = UnknownDistro;
2248 for (unsigned i = 0, s = Lines.size(); i != s; ++i)
2249 if (Version == UnknownDistro && Lines[i].startswith("DISTRIB_CODENAME="))
2250 Version = llvm::StringSwitch<Distro>(Lines[i].substr(17))
2251 .Case("hardy", UbuntuHardy)
2252 .Case("intrepid", UbuntuIntrepid)
2253 .Case("jaunty", UbuntuJaunty)
2254 .Case("karmic", UbuntuKarmic)
2255 .Case("lucid", UbuntuLucid)
2256 .Case("maverick", UbuntuMaverick)
2257 .Case("natty", UbuntuNatty)
2258 .Case("oneiric", UbuntuOneiric)
2259 .Case("precise", UbuntuPrecise)
2260 .Case("quantal", UbuntuQuantal)
2261 .Case("raring", UbuntuRaring)
2262 .Case("saucy", UbuntuSaucy)
2263 .Case("trusty", UbuntuTrusty)
2264 .Default(UnknownDistro);
2268 if (!llvm::MemoryBuffer::getFile("/etc/redhat-release", File)) {
2269 StringRef Data = File.get()->getBuffer();
2270 if (Data.startswith("Fedora release"))
2272 else if (Data.startswith("Red Hat Enterprise Linux") &&
2273 Data.find("release 6") != StringRef::npos)
2275 else if ((Data.startswith("Red Hat Enterprise Linux") ||
2276 Data.startswith("CentOS")) &&
2277 Data.find("release 5") != StringRef::npos)
2279 else if ((Data.startswith("Red Hat Enterprise Linux") ||
2280 Data.startswith("CentOS")) &&
2281 Data.find("release 4") != StringRef::npos)
2283 return UnknownDistro;
2286 if (!llvm::MemoryBuffer::getFile("/etc/debian_version", File)) {
2287 StringRef Data = File.get()->getBuffer();
2290 else if (Data.startswith("squeeze/sid") || Data[0] == '6')
2291 return DebianSqueeze;
2292 else if (Data.startswith("wheezy/sid") || Data[0] == '7')
2293 return DebianWheezy;
2294 else if (Data.startswith("jessie/sid") || Data[0] == '8')
2295 return DebianJessie;
2296 return UnknownDistro;
2299 if (llvm::sys::fs::exists("/etc/SuSE-release"))
2302 if (llvm::sys::fs::exists("/etc/exherbo-release"))
2305 if (llvm::sys::fs::exists("/etc/arch-release"))
2308 return UnknownDistro;
2311 /// \brief Get our best guess at the multiarch triple for a target.
2313 /// Debian-based systems are starting to use a multiarch setup where they use
2314 /// a target-triple directory in the library and header search paths.
2315 /// Unfortunately, this triple does not align with the vanilla target triple,
2316 /// so we provide a rough mapping here.
2317 static std::string getMultiarchTriple(const llvm::Triple TargetTriple,
2318 StringRef SysRoot) {
2319 // For most architectures, just use whatever we have rather than trying to be
2321 switch (TargetTriple.getArch()) {
2323 return TargetTriple.str();
2325 // We use the existence of '/lib/<triple>' as a directory to detect some
2326 // common linux triples that don't quite match the Clang triple for both
2327 // 32-bit and 64-bit targets. Multiarch fixes its install triples to these
2328 // regardless of what the actual target triple is.
2329 case llvm::Triple::arm:
2330 case llvm::Triple::thumb:
2331 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2332 if (llvm::sys::fs::exists(SysRoot + "/lib/arm-linux-gnueabihf"))
2333 return "arm-linux-gnueabihf";
2335 if (llvm::sys::fs::exists(SysRoot + "/lib/arm-linux-gnueabi"))
2336 return "arm-linux-gnueabi";
2338 return TargetTriple.str();
2339 case llvm::Triple::x86:
2340 if (llvm::sys::fs::exists(SysRoot + "/lib/i386-linux-gnu"))
2341 return "i386-linux-gnu";
2342 return TargetTriple.str();
2343 case llvm::Triple::x86_64:
2344 if (llvm::sys::fs::exists(SysRoot + "/lib/x86_64-linux-gnu"))
2345 return "x86_64-linux-gnu";
2346 return TargetTriple.str();
2347 case llvm::Triple::aarch64:
2348 if (llvm::sys::fs::exists(SysRoot + "/lib/aarch64-linux-gnu"))
2349 return "aarch64-linux-gnu";
2350 return TargetTriple.str();
2351 case llvm::Triple::mips:
2352 if (llvm::sys::fs::exists(SysRoot + "/lib/mips-linux-gnu"))
2353 return "mips-linux-gnu";
2354 return TargetTriple.str();
2355 case llvm::Triple::mipsel:
2356 if (llvm::sys::fs::exists(SysRoot + "/lib/mipsel-linux-gnu"))
2357 return "mipsel-linux-gnu";
2358 return TargetTriple.str();
2359 case llvm::Triple::ppc:
2360 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc-linux-gnuspe"))
2361 return "powerpc-linux-gnuspe";
2362 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc-linux-gnu"))
2363 return "powerpc-linux-gnu";
2364 return TargetTriple.str();
2365 case llvm::Triple::ppc64:
2366 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc64-linux-gnu"))
2367 return "powerpc64-linux-gnu";
2368 case llvm::Triple::ppc64le:
2369 if (llvm::sys::fs::exists(SysRoot + "/lib/powerpc64le-linux-gnu"))
2370 return "powerpc64le-linux-gnu";
2371 return TargetTriple.str();
2375 static void addPathIfExists(Twine Path, ToolChain::path_list &Paths) {
2376 if (llvm::sys::fs::exists(Path)) Paths.push_back(Path.str());
2379 static StringRef getMultilibDir(const llvm::Triple &Triple,
2380 const ArgList &Args) {
2381 if (isMipsArch(Triple.getArch())) {
2382 // lib32 directory has a special meaning on MIPS targets.
2383 // It contains N32 ABI binaries. Use this folder if produce
2384 // code for N32 ABI only.
2385 if (hasMipsN32ABIArg(Args))
2387 return Triple.isArch32Bit() ? "lib" : "lib64";
2390 // It happens that only x86 and PPC use the 'lib32' variant of multilib, and
2391 // using that variant while targeting other architectures causes problems
2392 // because the libraries are laid out in shared system roots that can't cope
2393 // with a 'lib32' multilib search path being considered. So we only enable
2394 // them when we know we may need it.
2396 // FIXME: This is a bit of a hack. We should really unify this code for
2397 // reasoning about multilib spellings with the lib dir spellings in the
2398 // GCCInstallationDetector, but that is a more significant refactoring.
2399 if (Triple.getArch() == llvm::Triple::x86 ||
2400 Triple.getArch() == llvm::Triple::ppc)
2403 return Triple.isArch32Bit() ? "lib" : "lib64";
2406 Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
2407 : Generic_ELF(D, Triple, Args) {
2408 GCCInstallation.init(Triple, Args);
2409 llvm::Triple::ArchType Arch = Triple.getArch();
2410 std::string SysRoot = computeSysRoot();
2412 // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
2413 // least) put various tools in a triple-prefixed directory off of the parent
2414 // of the GCC installation. We use the GCC triple here to ensure that we end
2415 // up with tools that support the same amount of cross compiling as the
2416 // detected GCC installation. For example, if we find a GCC installation
2417 // targeting x86_64, but it is a bi-arch GCC installation, it can also be
2418 // used to target i386.
2419 // FIXME: This seems unlikely to be Linux-specific.
2420 ToolChain::path_list &PPaths = getProgramPaths();
2421 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
2422 GCCInstallation.getTriple().str() + "/bin").str());
2424 Linker = GetProgramPath("ld");
2426 Distro Distro = DetectDistro(Arch);
2428 if (IsOpenSUSE(Distro) || IsUbuntu(Distro)) {
2429 ExtraOpts.push_back("-z");
2430 ExtraOpts.push_back("relro");
2433 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)
2434 ExtraOpts.push_back("-X");
2436 const bool IsAndroid = Triple.getEnvironment() == llvm::Triple::Android;
2437 const bool IsMips = isMipsArch(Arch);
2439 if (IsMips && !SysRoot.empty())
2440 ExtraOpts.push_back("--sysroot=" + SysRoot);
2442 // Do not use 'gnu' hash style for Mips targets because .gnu.hash
2443 // and the MIPS ABI require .dynsym to be sorted in different ways.
2444 // .gnu.hash needs symbols to be grouped by hash code whereas the MIPS
2445 // ABI requires a mapping between the GOT and the symbol table.
2446 // Android loader does not support .gnu.hash.
2447 if (!IsMips && !IsAndroid) {
2448 if (IsRedhat(Distro) || IsOpenSUSE(Distro) ||
2449 (IsUbuntu(Distro) && Distro >= UbuntuMaverick))
2450 ExtraOpts.push_back("--hash-style=gnu");
2452 if (IsDebian(Distro) || IsOpenSUSE(Distro) || Distro == UbuntuLucid ||
2453 Distro == UbuntuJaunty || Distro == UbuntuKarmic)
2454 ExtraOpts.push_back("--hash-style=both");
2457 if (IsRedhat(Distro))
2458 ExtraOpts.push_back("--no-add-needed");
2460 if (Distro == DebianSqueeze || Distro == DebianWheezy ||
2461 Distro == DebianJessie || IsOpenSUSE(Distro) ||
2462 (IsRedhat(Distro) && Distro != RHEL4 && Distro != RHEL5) ||
2463 (IsUbuntu(Distro) && Distro >= UbuntuKarmic))
2464 ExtraOpts.push_back("--build-id");
2466 if (IsOpenSUSE(Distro))
2467 ExtraOpts.push_back("--enable-new-dtags");
2469 // The selection of paths to try here is designed to match the patterns which
2470 // the GCC driver itself uses, as this is part of the GCC-compatible driver.
2471 // This was determined by running GCC in a fake filesystem, creating all
2472 // possible permutations of these directories, and seeing which ones it added
2473 // to the link paths.
2474 path_list &Paths = getFilePaths();
2476 const std::string Multilib = getMultilibDir(Triple, Args);
2477 const std::string MultiarchTriple = getMultiarchTriple(Triple, SysRoot);
2479 // Add the multilib suffixed paths where they are available.
2480 if (GCCInstallation.isValid()) {
2481 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
2482 const std::string &LibPath = GCCInstallation.getParentLibPath();
2484 // Sourcery CodeBench MIPS toolchain holds some libraries under
2485 // a biarch-like suffix of the GCC installation.
2487 // FIXME: It would be cleaner to model this as a variant of bi-arch. IE,
2488 // instead of a '64' biarch suffix it would be 'el' or something.
2489 if (IsAndroid && IsMips && isMips32r2(Args)) {
2490 assert(GCCInstallation.getBiarchSuffix().empty() &&
2491 "Unexpected bi-arch suffix");
2492 addPathIfExists(GCCInstallation.getInstallPath() + "/mips-r2", Paths);
2494 addPathIfExists((GCCInstallation.getInstallPath() +
2495 GCCInstallation.getMIPSABIDirSuffix() +
2496 GCCInstallation.getBiarchSuffix()),
2500 // GCC cross compiling toolchains will install target libraries which ship
2501 // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as
2502 // any part of the GCC installation in
2503 // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat
2504 // debatable, but is the reality today. We need to search this tree even
2505 // when we have a sysroot somewhere else. It is the responsibility of
2506 // whomever is doing the cross build targetting a sysroot using a GCC
2507 // installation that is *not* within the system root to ensure two things:
2509 // 1) Any DSOs that are linked in from this tree or from the install path
2510 // above must be preasant on the system root and found via an
2511 // appropriate rpath.
2512 // 2) There must not be libraries installed into
2513 // <prefix>/<triple>/<libdir> unless they should be preferred over
2514 // those within the system root.
2516 // Note that this matches the GCC behavior. See the below comment for where
2517 // Clang diverges from GCC's behavior.
2518 addPathIfExists(LibPath + "/../" + GCCTriple.str() + "/lib/../" + Multilib +
2519 GCCInstallation.getMIPSABIDirSuffix(),
2522 // If the GCC installation we found is inside of the sysroot, we want to
2523 // prefer libraries installed in the parent prefix of the GCC installation.
2524 // It is important to *not* use these paths when the GCC installation is
2525 // outside of the system root as that can pick up unintended libraries.
2526 // This usually happens when there is an external cross compiler on the
2527 // host system, and a more minimal sysroot available that is the target of
2528 // the cross. Note that GCC does include some of these directories in some
2529 // configurations but this seems somewhere between questionable and simply
2531 if (StringRef(LibPath).startswith(SysRoot)) {
2532 addPathIfExists(LibPath + "/" + MultiarchTriple, Paths);
2533 addPathIfExists(LibPath + "/../" + Multilib, Paths);
2536 addPathIfExists(SysRoot + "/lib/" + MultiarchTriple, Paths);
2537 addPathIfExists(SysRoot + "/lib/../" + Multilib, Paths);
2538 addPathIfExists(SysRoot + "/usr/lib/" + MultiarchTriple, Paths);
2539 addPathIfExists(SysRoot + "/usr/lib/../" + Multilib, Paths);
2541 // Try walking via the GCC triple path in case of biarch or multiarch GCC
2542 // installations with strange symlinks.
2543 if (GCCInstallation.isValid()) {
2544 addPathIfExists(SysRoot + "/usr/lib/" + GCCInstallation.getTriple().str() +
2545 "/../../" + Multilib, Paths);
2547 // Add the non-multilib suffixed paths (if potentially different).
2548 const std::string &LibPath = GCCInstallation.getParentLibPath();
2549 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
2550 if (!GCCInstallation.getBiarchSuffix().empty())
2551 addPathIfExists(GCCInstallation.getInstallPath() +
2552 GCCInstallation.getMIPSABIDirSuffix(), Paths);
2554 // See comments above on the multilib variant for details of why this is
2555 // included even from outside the sysroot.
2556 addPathIfExists(LibPath + "/../" + GCCTriple.str() +
2557 "/lib" + GCCInstallation.getMIPSABIDirSuffix(), Paths);
2559 // See comments above on the multilib variant for details of why this is
2560 // only included from within the sysroot.
2561 if (StringRef(LibPath).startswith(SysRoot))
2562 addPathIfExists(LibPath, Paths);
2564 addPathIfExists(SysRoot + "/lib", Paths);
2565 addPathIfExists(SysRoot + "/usr/lib", Paths);
2568 bool FreeBSD::HasNativeLLVMSupport() const {
2572 bool Linux::HasNativeLLVMSupport() const {
2576 Tool *Linux::buildLinker() const {
2577 return new tools::gnutools::Link(*this);
2580 Tool *Linux::buildAssembler() const {
2581 return new tools::gnutools::Assemble(*this);
2584 std::string Linux::computeSysRoot() const {
2585 if (!getDriver().SysRoot.empty())
2586 return getDriver().SysRoot;
2588 if (!GCCInstallation.isValid() || !isMipsArch(getTriple().getArch()))
2589 return std::string();
2591 // Standalone MIPS toolchains use different names for sysroot folder
2592 // and put it into different places. Here we try to check some known
2595 const StringRef InstallDir = GCCInstallation.getInstallPath();
2596 const StringRef TripleStr = GCCInstallation.getTriple().str();
2597 const StringRef MIPSABIDirSuffix = GCCInstallation.getMIPSABIDirSuffix();
2599 std::string Path = (InstallDir + "/../../../../" + TripleStr + "/libc" +
2600 MIPSABIDirSuffix).str();
2602 if (llvm::sys::fs::exists(Path))
2605 Path = (InstallDir + "/../../../../sysroot" + MIPSABIDirSuffix).str();
2607 if (llvm::sys::fs::exists(Path))
2610 return std::string();
2613 void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
2614 ArgStringList &CC1Args) const {
2615 const Driver &D = getDriver();
2616 std::string SysRoot = computeSysRoot();
2618 if (DriverArgs.hasArg(options::OPT_nostdinc))
2621 if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
2622 addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include");
2624 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
2625 SmallString<128> P(D.ResourceDir);
2626 llvm::sys::path::append(P, "include");
2627 addSystemInclude(DriverArgs, CC1Args, P.str());
2630 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
2633 // Check for configure-time C include directories.
2634 StringRef CIncludeDirs(C_INCLUDE_DIRS);
2635 if (CIncludeDirs != "") {
2636 SmallVector<StringRef, 5> dirs;
2637 CIncludeDirs.split(dirs, ":");
2638 for (SmallVectorImpl<StringRef>::iterator I = dirs.begin(), E = dirs.end();
2640 StringRef Prefix = llvm::sys::path::is_absolute(*I) ? SysRoot : "";
2641 addExternCSystemInclude(DriverArgs, CC1Args, Prefix + *I);
2646 // Lacking those, try to detect the correct set of system includes for the
2649 // Sourcery CodeBench and modern FSF Mips toolchains put extern C
2650 // system includes under three additional directories.
2651 if (GCCInstallation.isValid() && isMipsArch(getTriple().getArch())) {
2652 addExternCSystemIncludeIfExists(
2653 DriverArgs, CC1Args, GCCInstallation.getInstallPath() + "/include");
2655 addExternCSystemIncludeIfExists(
2656 DriverArgs, CC1Args,
2657 GCCInstallation.getInstallPath() + "/../../../../" +
2658 GCCInstallation.getTriple().str() + "/libc/usr/include");
2660 addExternCSystemIncludeIfExists(
2661 DriverArgs, CC1Args,
2662 GCCInstallation.getInstallPath() + "/../../../../sysroot/usr/include");
2665 // Implement generic Debian multiarch support.
2666 const StringRef X86_64MultiarchIncludeDirs[] = {
2667 "/usr/include/x86_64-linux-gnu",
2669 // FIXME: These are older forms of multiarch. It's not clear that they're
2670 // in use in any released version of Debian, so we should consider
2672 "/usr/include/i686-linux-gnu/64", "/usr/include/i486-linux-gnu/64"
2674 const StringRef X86MultiarchIncludeDirs[] = {
2675 "/usr/include/i386-linux-gnu",
2677 // FIXME: These are older forms of multiarch. It's not clear that they're
2678 // in use in any released version of Debian, so we should consider
2680 "/usr/include/x86_64-linux-gnu/32", "/usr/include/i686-linux-gnu",
2681 "/usr/include/i486-linux-gnu"
2683 const StringRef AArch64MultiarchIncludeDirs[] = {
2684 "/usr/include/aarch64-linux-gnu"
2686 const StringRef ARMMultiarchIncludeDirs[] = {
2687 "/usr/include/arm-linux-gnueabi"
2689 const StringRef ARMHFMultiarchIncludeDirs[] = {
2690 "/usr/include/arm-linux-gnueabihf"
2692 const StringRef MIPSMultiarchIncludeDirs[] = {
2693 "/usr/include/mips-linux-gnu"
2695 const StringRef MIPSELMultiarchIncludeDirs[] = {
2696 "/usr/include/mipsel-linux-gnu"
2698 const StringRef PPCMultiarchIncludeDirs[] = {
2699 "/usr/include/powerpc-linux-gnu"
2701 const StringRef PPC64MultiarchIncludeDirs[] = {
2702 "/usr/include/powerpc64-linux-gnu"
2704 ArrayRef<StringRef> MultiarchIncludeDirs;
2705 if (getTriple().getArch() == llvm::Triple::x86_64) {
2706 MultiarchIncludeDirs = X86_64MultiarchIncludeDirs;
2707 } else if (getTriple().getArch() == llvm::Triple::x86) {
2708 MultiarchIncludeDirs = X86MultiarchIncludeDirs;
2709 } else if (getTriple().getArch() == llvm::Triple::aarch64) {
2710 MultiarchIncludeDirs = AArch64MultiarchIncludeDirs;
2711 } else if (getTriple().getArch() == llvm::Triple::arm) {
2712 if (getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
2713 MultiarchIncludeDirs = ARMHFMultiarchIncludeDirs;
2715 MultiarchIncludeDirs = ARMMultiarchIncludeDirs;
2716 } else if (getTriple().getArch() == llvm::Triple::mips) {
2717 MultiarchIncludeDirs = MIPSMultiarchIncludeDirs;
2718 } else if (getTriple().getArch() == llvm::Triple::mipsel) {
2719 MultiarchIncludeDirs = MIPSELMultiarchIncludeDirs;
2720 } else if (getTriple().getArch() == llvm::Triple::ppc) {
2721 MultiarchIncludeDirs = PPCMultiarchIncludeDirs;
2722 } else if (getTriple().getArch() == llvm::Triple::ppc64) {
2723 MultiarchIncludeDirs = PPC64MultiarchIncludeDirs;
2725 for (ArrayRef<StringRef>::iterator I = MultiarchIncludeDirs.begin(),
2726 E = MultiarchIncludeDirs.end();
2728 if (llvm::sys::fs::exists(SysRoot + *I)) {
2729 addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + *I);
2734 if (getTriple().getOS() == llvm::Triple::RTEMS)
2737 // Add an include of '/include' directly. This isn't provided by default by
2738 // system GCCs, but is often used with cross-compiling GCCs, and harmless to
2739 // add even when Clang is acting as-if it were a system compiler.
2740 addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/include");
2742 addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include");
2745 /// \brief Helper to add the three variant paths for a libstdc++ installation.
2746 /*static*/ bool Linux::addLibStdCXXIncludePaths(Twine Base, Twine TargetArchDir,
2747 const ArgList &DriverArgs,
2748 ArgStringList &CC1Args) {
2749 if (!llvm::sys::fs::exists(Base))
2751 addSystemInclude(DriverArgs, CC1Args, Base);
2752 addSystemInclude(DriverArgs, CC1Args, Base + "/" + TargetArchDir);
2753 addSystemInclude(DriverArgs, CC1Args, Base + "/backward");
2757 /// \brief Helper to add an extra variant path for an (Ubuntu) multilib
2758 /// libstdc++ installation.
2759 /*static*/ bool Linux::addLibStdCXXIncludePaths(Twine Base, Twine Suffix,
2760 Twine TargetArchDir,
2762 Twine MIPSABIDirSuffix,
2763 const ArgList &DriverArgs,
2764 ArgStringList &CC1Args) {
2765 if (!addLibStdCXXIncludePaths(Base + Suffix,
2766 TargetArchDir + MIPSABIDirSuffix + BiarchSuffix,
2767 DriverArgs, CC1Args))
2770 addSystemInclude(DriverArgs, CC1Args, Base + "/" + TargetArchDir + Suffix
2771 + MIPSABIDirSuffix + BiarchSuffix);
2775 void Linux::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2776 ArgStringList &CC1Args) const {
2777 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2778 DriverArgs.hasArg(options::OPT_nostdincxx))
2781 // Check if libc++ has been enabled and provide its include paths if so.
2782 if (GetCXXStdlibType(DriverArgs) == ToolChain::CST_Libcxx) {
2783 // libc++ is always installed at a fixed path on Linux currently.
2784 addSystemInclude(DriverArgs, CC1Args,
2785 getDriver().SysRoot + "/usr/include/c++/v1");
2789 // We need a detected GCC installation on Linux to provide libstdc++'s
2790 // headers. We handled the libc++ case above.
2791 if (!GCCInstallation.isValid())
2794 // By default, look for the C++ headers in an include directory adjacent to
2795 // the lib directory of the GCC installation. Note that this is expect to be
2796 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
2797 StringRef LibDir = GCCInstallation.getParentLibPath();
2798 StringRef InstallDir = GCCInstallation.getInstallPath();
2799 StringRef TripleStr = GCCInstallation.getTriple().str();
2800 StringRef MIPSABIDirSuffix = GCCInstallation.getMIPSABIDirSuffix();
2801 StringRef BiarchSuffix = GCCInstallation.getBiarchSuffix();
2802 const GCCVersion &Version = GCCInstallation.getVersion();
2804 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include",
2805 "/c++/" + Version.Text, TripleStr, BiarchSuffix,
2806 MIPSABIDirSuffix, DriverArgs, CC1Args))
2809 const std::string IncludePathCandidates[] = {
2810 // Gentoo is weird and places its headers inside the GCC install, so if the
2811 // first attempt to find the headers fails, try these patterns.
2812 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
2814 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
2815 // Android standalone toolchain has C++ headers in yet another place.
2816 LibDir.str() + "/../" + TripleStr.str() + "/include/c++/" + Version.Text,
2817 // Freescale SDK C++ headers are directly in <sysroot>/usr/include/c++,
2818 // without a subdirectory corresponding to the gcc version.
2819 LibDir.str() + "/../include/c++",
2822 for (unsigned i = 0; i < llvm::array_lengthof(IncludePathCandidates); ++i) {
2823 if (addLibStdCXXIncludePaths(IncludePathCandidates[i],
2824 TripleStr + MIPSABIDirSuffix + BiarchSuffix,
2825 DriverArgs, CC1Args))
2830 bool Linux::isPIEDefault() const {
2831 return getSanitizerArgs().hasZeroBaseShadow();
2834 /// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly.
2836 DragonFly::DragonFly(const Driver &D, const llvm::Triple& Triple, const ArgList &Args)
2837 : Generic_ELF(D, Triple, Args) {
2839 // Path mangling to find libexec
2840 getProgramPaths().push_back(getDriver().getInstalledDir());
2841 if (getDriver().getInstalledDir() != getDriver().Dir)
2842 getProgramPaths().push_back(getDriver().Dir);
2844 getFilePaths().push_back(getDriver().Dir + "/../lib");
2845 getFilePaths().push_back("/usr/lib");
2846 if (llvm::sys::fs::exists("/usr/lib/gcc47"))
2847 getFilePaths().push_back("/usr/lib/gcc47");
2849 getFilePaths().push_back("/usr/lib/gcc44");
2852 Tool *DragonFly::buildAssembler() const {
2853 return new tools::dragonfly::Assemble(*this);
2856 Tool *DragonFly::buildLinker() const {
2857 return new tools::dragonfly::Link(*this);
2861 /// XCore tool chain
2862 XCore::XCore(const Driver &D, const llvm::Triple &Triple,
2863 const ArgList &Args) : ToolChain(D, Triple, Args) {
2864 // ProgramPaths are found via 'PATH' environment variable.
2867 Tool *XCore::buildAssembler() const {
2868 return new tools::XCore::Assemble(*this);
2871 Tool *XCore::buildLinker() const {
2872 return new tools::XCore::Link(*this);
2875 bool XCore::isPICDefault() const {
2879 bool XCore::isPIEDefault() const {
2883 bool XCore::isPICDefaultForced() const {
2887 bool XCore::SupportsProfiling() const {
2891 bool XCore::hasBlocksRuntime() const {
2896 void XCore::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
2897 ArgStringList &CC1Args) const {
2898 if (DriverArgs.hasArg(options::OPT_nostdinc) ||
2899 DriverArgs.hasArg(options::OPT_nostdlibinc))
2901 if (const char *cl_include_dir = getenv("XCC_C_INCLUDE_PATH")) {
2902 SmallVector<StringRef, 4> Dirs;
2903 const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator,'\0'};
2904 StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
2905 ArrayRef<StringRef> DirVec(Dirs);
2906 addSystemIncludes(DriverArgs, CC1Args, DirVec);
2910 void XCore::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
2911 llvm::opt::ArgStringList &CC1Args) const {
2912 CC1Args.push_back("-nostdsysteminc");
2915 void XCore::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2916 ArgStringList &CC1Args) const {
2917 if (DriverArgs.hasArg(options::OPT_nostdinc) ||
2918 DriverArgs.hasArg(options::OPT_nostdlibinc))
2920 if (const char *cl_include_dir = getenv("XCC_CPLUS_INCLUDE_PATH")) {
2921 SmallVector<StringRef, 4> Dirs;
2922 const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator,'\0'};
2923 StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
2924 ArrayRef<StringRef> DirVec(Dirs);
2925 addSystemIncludes(DriverArgs, CC1Args, DirVec);
2929 void XCore::AddCXXStdlibLibArgs(const ArgList &Args,
2930 ArgStringList &CmdArgs) const {
2931 // We don't output any lib args. This is handled by xcc.