16 #include "clang/Config/config.h" 21 #include "llvm/Option/ArgList.h" 22 #include "llvm/ProfileData/InstrProf.h" 23 #include "llvm/Support/Path.h" 24 #include <system_error> 28 using namespace clang;
40 const llvm::Triple &TargetTriple,
42 llvm::Triple::EnvironmentType TargetEnvironment =
43 TargetTriple.getEnvironment();
47 switch (TargetTriple.getArch()) {
55 case llvm::Triple::arm:
56 case llvm::Triple::thumb:
57 if (TargetEnvironment == llvm::Triple::GNUEABIHF) {
58 if (D.
getVFS().
exists(SysRoot +
"/lib/arm-linux-gnueabihf"))
59 return "arm-linux-gnueabihf";
61 if (D.
getVFS().
exists(SysRoot +
"/lib/arm-linux-gnueabi"))
62 return "arm-linux-gnueabi";
65 case llvm::Triple::armeb:
66 case llvm::Triple::thumbeb:
67 if (TargetEnvironment == llvm::Triple::GNUEABIHF) {
68 if (D.
getVFS().
exists(SysRoot +
"/lib/armeb-linux-gnueabihf"))
69 return "armeb-linux-gnueabihf";
71 if (D.
getVFS().
exists(SysRoot +
"/lib/armeb-linux-gnueabi"))
72 return "armeb-linux-gnueabi";
75 case llvm::Triple::x86:
77 return "i386-linux-gnu";
79 case llvm::Triple::x86_64:
81 if (TargetEnvironment != llvm::Triple::GNUX32 &&
83 return "x86_64-linux-gnu";
85 case llvm::Triple::aarch64:
86 if (D.
getVFS().
exists(SysRoot +
"/lib/aarch64-linux-gnu"))
87 return "aarch64-linux-gnu";
89 case llvm::Triple::aarch64_be:
90 if (D.
getVFS().
exists(SysRoot +
"/lib/aarch64_be-linux-gnu"))
91 return "aarch64_be-linux-gnu";
93 case llvm::Triple::mips:
95 return "mips-linux-gnu";
97 case llvm::Triple::mipsel:
98 if (D.
getVFS().
exists(SysRoot +
"/lib/mipsel-linux-gnu"))
99 return "mipsel-linux-gnu";
101 case llvm::Triple::mips64:
102 if (D.
getVFS().
exists(SysRoot +
"/lib/mips64-linux-gnu"))
103 return "mips64-linux-gnu";
104 if (D.
getVFS().
exists(SysRoot +
"/lib/mips64-linux-gnuabi64"))
105 return "mips64-linux-gnuabi64";
107 case llvm::Triple::mips64el:
108 if (D.
getVFS().
exists(SysRoot +
"/lib/mips64el-linux-gnu"))
109 return "mips64el-linux-gnu";
110 if (D.
getVFS().
exists(SysRoot +
"/lib/mips64el-linux-gnuabi64"))
111 return "mips64el-linux-gnuabi64";
113 case llvm::Triple::ppc:
114 if (D.
getVFS().
exists(SysRoot +
"/lib/powerpc-linux-gnuspe"))
115 return "powerpc-linux-gnuspe";
116 if (D.
getVFS().
exists(SysRoot +
"/lib/powerpc-linux-gnu"))
117 return "powerpc-linux-gnu";
119 case llvm::Triple::ppc64:
120 if (D.
getVFS().
exists(SysRoot +
"/lib/powerpc64-linux-gnu"))
121 return "powerpc64-linux-gnu";
123 case llvm::Triple::ppc64le:
124 if (D.
getVFS().
exists(SysRoot +
"/lib/powerpc64le-linux-gnu"))
125 return "powerpc64le-linux-gnu";
127 case llvm::Triple::sparc:
128 if (D.
getVFS().
exists(SysRoot +
"/lib/sparc-linux-gnu"))
129 return "sparc-linux-gnu";
131 case llvm::Triple::sparcv9:
132 if (D.
getVFS().
exists(SysRoot +
"/lib/sparc64-linux-gnu"))
133 return "sparc64-linux-gnu";
135 case llvm::Triple::systemz:
136 if (D.
getVFS().
exists(SysRoot +
"/lib/s390x-linux-gnu"))
137 return "s390x-linux-gnu";
140 return TargetTriple.str();
143 static StringRef
getOSLibDir(
const llvm::Triple &Triple,
const ArgList &Args) {
145 if (Triple.isAndroid()) {
149 if (CPUName ==
"mips32r6")
151 if (CPUName ==
"mips32r2")
159 return Triple.isArch32Bit() ?
"lib" :
"lib64";
171 if (Triple.getArch() == llvm::Triple::x86 ||
172 Triple.getArch() == llvm::Triple::ppc)
175 if (Triple.getArch() == llvm::Triple::x86_64 &&
176 Triple.getEnvironment() == llvm::Triple::GNUX32)
179 return Triple.isArch32Bit() ?
"lib" :
"lib64";
184 StringRef InstallPath,
187 for (
const auto &Path : PathsCallback(Multilib))
195 llvm::Triple::ArchType Arch = Triple.getArch();
223 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)
226 const bool IsAndroid = Triple.isAndroid();
228 const bool IsHexagon = Arch == llvm::Triple::hexagon;
230 if (IsMips && !SysRoot.empty())
231 ExtraOpts.push_back(
"--sysroot=" + SysRoot);
239 if (!IsMips && !IsAndroid && !IsHexagon) {
246 ExtraOpts.push_back(
"--hash-style=both");
252 #ifdef ENABLE_LINKER_BUILD_ID 257 ExtraOpts.push_back(
"--enable-new-dtags");
266 const std::string OSLibDir =
getOSLibDir(Triple, Args);
316 if (StringRef(LibPath).startswith(SysRoot)) {
327 if (StringRef(D.
Dir).startswith(SysRoot)) {
342 "/../../" + OSLibDir,
349 BiarchSibling.gccSuffix(),
364 if (StringRef(LibPath).startswith(SysRoot))
373 if (StringRef(D.
Dir).startswith(SysRoot))
393 return std::string();
404 (InstallDir +
"/../../../../" + TripleStr +
"/libc" + Multilib.
osSuffix())
410 Path = (InstallDir +
"/../../../../sysroot" + Multilib.
osSuffix()).str();
415 return std::string();
419 const llvm::Triple::ArchType Arch =
getArch();
420 const llvm::Triple &Triple =
getTriple();
424 if (Triple.isAndroid())
425 return Triple.isArch64Bit() ?
"/system/bin/linker64" :
"/system/bin/linker";
427 if (Triple.isMusl()) {
428 std::string ArchName;
432 case llvm::Triple::arm:
433 case llvm::Triple::thumb:
437 case llvm::Triple::armeb:
438 case llvm::Triple::thumbeb:
443 ArchName = Triple.getArchName().str();
446 (Triple.getEnvironment() == llvm::Triple::MuslEABIHF ||
450 return "/lib/ld-musl-" + ArchName +
".so.1";
458 llvm_unreachable(
"unsupported architecture");
460 case llvm::Triple::aarch64:
462 Loader =
"ld-linux-aarch64.so.1";
464 case llvm::Triple::aarch64_be:
466 Loader =
"ld-linux-aarch64_be.so.1";
468 case llvm::Triple::arm:
469 case llvm::Triple::thumb:
470 case llvm::Triple::armeb:
471 case llvm::Triple::thumbeb: {
473 Triple.getEnvironment() == llvm::Triple::GNUEABIHF ||
477 Loader = HF ?
"ld-linux-armhf.so.3" :
"ld-linux.so.3";
480 case llvm::Triple::mips:
481 case llvm::Triple::mipsel:
482 case llvm::Triple::mips64:
483 case llvm::Triple::mips64el: {
484 bool LE = (Triple.getArch() == llvm::Triple::mipsel) ||
485 (Triple.getArch() == llvm::Triple::mips64el);
491 Loader = IsNaN2008 ?
"ld-uClibc-mipsn8.so.0" :
"ld-uClibc.so.0";
492 else if (!Triple.hasEnvironment() &&
493 Triple.getVendor() == llvm::Triple::VendorType::MipsTechnologies)
494 Loader = LE ?
"ld-musl-mipsel.so.1" :
"ld-musl-mips.so.1";
496 Loader = IsNaN2008 ?
"ld-linux-mipsn8.so.1" :
"ld.so.1";
500 case llvm::Triple::ppc:
504 case llvm::Triple::ppc64:
509 case llvm::Triple::ppc64le:
514 case llvm::Triple::sparc:
515 case llvm::Triple::sparcel:
517 Loader =
"ld-linux.so.2";
519 case llvm::Triple::sparcv9:
521 Loader =
"ld-linux.so.2";
523 case llvm::Triple::systemz:
525 Loader =
"ld64.so.1";
527 case llvm::Triple::x86:
529 Loader =
"ld-linux.so.2";
531 case llvm::Triple::x86_64: {
532 bool X32 = Triple.getEnvironment() == llvm::Triple::GNUX32;
534 LibDir = X32 ?
"libx32" :
"lib64";
535 Loader = X32 ?
"ld-linux-x32.so.2" :
"ld-linux-x86-64.so.2";
540 if (Distro ==
Distro::Exherbo && (Triple.getVendor() == llvm::Triple::UnknownVendor ||
541 Triple.getVendor() == llvm::Triple::PC))
542 return "/usr/" + Triple.str() +
"/lib/" + Loader;
543 return "/" + LibDir +
"/" + Loader;
547 ArgStringList &CC1Args)
const {
551 if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
554 if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
557 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
559 llvm::sys::path::append(P,
"include");
563 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
567 StringRef CIncludeDirs(C_INCLUDE_DIRS);
568 if (CIncludeDirs !=
"") {
570 CIncludeDirs.split(dirs,
":");
571 for (StringRef dir : dirs) {
573 llvm::sys::path::is_absolute(dir) ? StringRef(SysRoot) :
"";
593 const StringRef X86_64MultiarchIncludeDirs[] = {
594 "/usr/include/x86_64-linux-gnu",
599 "/usr/include/i686-linux-gnu/64",
"/usr/include/i486-linux-gnu/64"};
600 const StringRef X86MultiarchIncludeDirs[] = {
601 "/usr/include/i386-linux-gnu",
606 "/usr/include/x86_64-linux-gnu/32",
"/usr/include/i686-linux-gnu",
607 "/usr/include/i486-linux-gnu"};
608 const StringRef AArch64MultiarchIncludeDirs[] = {
609 "/usr/include/aarch64-linux-gnu"};
610 const StringRef ARMMultiarchIncludeDirs[] = {
611 "/usr/include/arm-linux-gnueabi"};
612 const StringRef ARMHFMultiarchIncludeDirs[] = {
613 "/usr/include/arm-linux-gnueabihf"};
614 const StringRef ARMEBMultiarchIncludeDirs[] = {
615 "/usr/include/armeb-linux-gnueabi"};
616 const StringRef ARMEBHFMultiarchIncludeDirs[] = {
617 "/usr/include/armeb-linux-gnueabihf"};
618 const StringRef MIPSMultiarchIncludeDirs[] = {
"/usr/include/mips-linux-gnu"};
619 const StringRef MIPSELMultiarchIncludeDirs[] = {
620 "/usr/include/mipsel-linux-gnu"};
621 const StringRef MIPS64MultiarchIncludeDirs[] = {
622 "/usr/include/mips64-linux-gnu",
"/usr/include/mips64-linux-gnuabi64"};
623 const StringRef MIPS64ELMultiarchIncludeDirs[] = {
624 "/usr/include/mips64el-linux-gnu",
625 "/usr/include/mips64el-linux-gnuabi64"};
626 const StringRef PPCMultiarchIncludeDirs[] = {
627 "/usr/include/powerpc-linux-gnu"};
628 const StringRef PPC64MultiarchIncludeDirs[] = {
629 "/usr/include/powerpc64-linux-gnu"};
630 const StringRef PPC64LEMultiarchIncludeDirs[] = {
631 "/usr/include/powerpc64le-linux-gnu"};
632 const StringRef SparcMultiarchIncludeDirs[] = {
633 "/usr/include/sparc-linux-gnu"};
634 const StringRef Sparc64MultiarchIncludeDirs[] = {
635 "/usr/include/sparc64-linux-gnu"};
636 const StringRef SYSTEMZMultiarchIncludeDirs[] = {
637 "/usr/include/s390x-linux-gnu"};
640 case llvm::Triple::x86_64:
641 MultiarchIncludeDirs = X86_64MultiarchIncludeDirs;
643 case llvm::Triple::x86:
644 MultiarchIncludeDirs = X86MultiarchIncludeDirs;
646 case llvm::Triple::aarch64:
647 case llvm::Triple::aarch64_be:
648 MultiarchIncludeDirs = AArch64MultiarchIncludeDirs;
650 case llvm::Triple::arm:
651 case llvm::Triple::thumb:
652 if (
getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
653 MultiarchIncludeDirs = ARMHFMultiarchIncludeDirs;
655 MultiarchIncludeDirs = ARMMultiarchIncludeDirs;
657 case llvm::Triple::armeb:
658 case llvm::Triple::thumbeb:
659 if (
getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
660 MultiarchIncludeDirs = ARMEBHFMultiarchIncludeDirs;
662 MultiarchIncludeDirs = ARMEBMultiarchIncludeDirs;
664 case llvm::Triple::mips:
665 MultiarchIncludeDirs = MIPSMultiarchIncludeDirs;
667 case llvm::Triple::mipsel:
668 MultiarchIncludeDirs = MIPSELMultiarchIncludeDirs;
670 case llvm::Triple::mips64:
671 MultiarchIncludeDirs = MIPS64MultiarchIncludeDirs;
673 case llvm::Triple::mips64el:
674 MultiarchIncludeDirs = MIPS64ELMultiarchIncludeDirs;
676 case llvm::Triple::ppc:
677 MultiarchIncludeDirs = PPCMultiarchIncludeDirs;
679 case llvm::Triple::ppc64:
680 MultiarchIncludeDirs = PPC64MultiarchIncludeDirs;
682 case llvm::Triple::ppc64le:
683 MultiarchIncludeDirs = PPC64LEMultiarchIncludeDirs;
685 case llvm::Triple::sparc:
686 MultiarchIncludeDirs = SparcMultiarchIncludeDirs;
688 case llvm::Triple::sparcv9:
689 MultiarchIncludeDirs = Sparc64MultiarchIncludeDirs;
691 case llvm::Triple::systemz:
692 MultiarchIncludeDirs = SYSTEMZMultiarchIncludeDirs;
697 for (StringRef Dir : MultiarchIncludeDirs) {
718 std::string MaxVersionString =
"";
719 for (llvm::sys::fs::directory_iterator LI(base, EC), LE; !EC && LI != LE;
720 LI = LI.increment(EC)) {
721 StringRef VersionText = llvm::sys::path::filename(LI->path());
723 if (VersionText[0] ==
'v' &&
724 !VersionText.slice(1, StringRef::npos).getAsInteger(10, Version)) {
725 if (Version > MaxVersion) {
726 MaxVersion = Version;
727 MaxVersionString = VersionText;
731 return MaxVersion ? (base +
"/" + MaxVersionString).str() :
"";
735 const std::string LibCXXIncludePathCandidates[] = {
742 for (
const auto &IncludePath : LibCXXIncludePathCandidates) {
743 if (IncludePath.empty() || !
getVFS().
exists(IncludePath))
752 llvm::opt::ArgStringList &CC1Args)
const {
767 const std::string TargetMultiarchTriple =
773 "/c++/" + Version.
Text, TripleStr,
774 GCCMultiarchTriple, TargetMultiarchTriple,
780 const std::string LibStdCXXIncludePathCandidates[] = {
783 InstallDir.str() +
"/include/g++-v" + Version.
Text,
784 InstallDir.str() +
"/include/g++-v" + Version.
MajorStr +
"." +
786 InstallDir.str() +
"/include/g++-v" + Version.
MajorStr,
788 LibDir.str() +
"/../" + TripleStr.str() +
"/include/c++/" + Version.
Text,
791 LibDir.str() +
"/../include/c++",
794 for (
const auto &IncludePath : LibStdCXXIncludePathCandidates) {
804 ArgStringList &CC1Args)
const {
809 ArgStringList &CC1Args)
const {
811 CC1Args.push_back(
"-isystem");
812 CC1Args.push_back(DriverArgs.MakeArgString(
824 const bool IsX86 =
getTriple().getArch() == llvm::Triple::x86;
825 const bool IsX86_64 =
getTriple().getArch() == llvm::Triple::x86_64;
826 const bool IsMIPS64 =
getTriple().getArch() == llvm::Triple::mips64 ||
827 getTriple().getArch() == llvm::Triple::mips64el;
828 const bool IsPowerPC64 =
getTriple().getArch() == llvm::Triple::ppc64 ||
829 getTriple().getArch() == llvm::Triple::ppc64le;
830 const bool IsAArch64 =
getTriple().getArch() == llvm::Triple::aarch64 ||
831 getTriple().getArch() == llvm::Triple::aarch64_be;
832 const bool IsArmArch =
getTriple().getArch() == llvm::Triple::arm ||
833 getTriple().getArch() == llvm::Triple::thumb ||
834 getTriple().getArch() == llvm::Triple::armeb ||
835 getTriple().getArch() == llvm::Triple::thumbeb;
837 Res |= SanitizerKind::Address;
838 Res |= SanitizerKind::Fuzzer;
839 Res |= SanitizerKind::FuzzerNoLink;
840 Res |= SanitizerKind::KernelAddress;
841 Res |= SanitizerKind::Vptr;
842 Res |= SanitizerKind::SafeStack;
843 if (IsX86_64 || IsMIPS64 || IsAArch64)
844 Res |= SanitizerKind::DataFlow;
845 if (IsX86_64 || IsMIPS64 || IsAArch64 || IsX86 || IsArmArch || IsPowerPC64)
846 Res |= SanitizerKind::Leak;
847 if (IsX86_64 || IsMIPS64 || IsAArch64 || IsPowerPC64)
848 Res |= SanitizerKind::Thread;
849 if (IsX86_64 || IsMIPS64 || IsPowerPC64 || IsAArch64)
850 Res |= SanitizerKind::Memory;
851 if (IsX86_64 || IsMIPS64)
852 Res |= SanitizerKind::Efficiency;
853 if (IsX86 || IsX86_64)
854 Res |= SanitizerKind::Function;
855 if (IsX86_64 || IsMIPS64 || IsAArch64 || IsX86 || IsArmArch)
856 Res |= SanitizerKind::Scudo;
858 Res |= SanitizerKind::HWAddress;
863 llvm::opt::ArgStringList &CmdArgs)
const {
868 if (!Args.hasArg(options::OPT_coverage))
869 CmdArgs.push_back(Args.MakeArgString(
870 Twine(
"-u", llvm::getInstrProfRuntimeHookVarName())));
const IncludeDirsFunc & includeDirsCallback() const
const IncludeDirsFunc & filePathsCallback() const
Distro - Helper class for detecting and classifying Linux distributions.
const std::string & includeSuffix() const
Get the include directory suffix.
std::string Dir
The path the driver executable was in, as invoked from the command line.
const std::string & gccSuffix() const
Get the detected GCC installation path suffix for the multi-arch target variant.
static StringRef getOSLibDir(const llvm::Triple &Triple, const ArgList &Args)
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
static std::string DetectLibcxxIncludePath(StringRef base)
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag...
void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
static std::string getMultiarchTriple(const Driver &D, const llvm::Triple &TargetTriple, StringRef SysRoot)
Get our best guess at the multiarch triple for a target.
vfs::FileSystem & getVFS() const
bool IsAlpineLinux() const
static void addMultilibsFilePaths(const Driver &D, const MultilibSet &Multilibs, const Multilib &Multilib, StringRef InstallPath, ToolChain::path_list &Paths)
Dataflow Directional Tag Classes.
std::string SysRoot
sysroot, if present
Defines the virtual file system interface vfs::FileSystem.
bool exists(const Twine &Path)
Check whether a file exists. Provided for convenience.
std::string ResourceDir
The path to the compiler resource directory.