17 #include "clang/Config/config.h" 22 #include "llvm/Option/ArgList.h" 23 #include "llvm/ProfileData/InstrProf.h" 24 #include "llvm/Support/Path.h" 25 #include "llvm/Support/ScopedPrinter.h" 26 #include <system_error> 30 using namespace clang;
42 const llvm::Triple &TargetTriple,
44 llvm::Triple::EnvironmentType TargetEnvironment =
45 TargetTriple.getEnvironment();
46 bool IsAndroid = TargetTriple.isAndroid();
50 switch (TargetTriple.getArch()) {
58 case llvm::Triple::arm:
59 case llvm::Triple::thumb:
61 return "arm-linux-androideabi";
62 }
else if (TargetEnvironment == llvm::Triple::GNUEABIHF) {
63 if (D.
getVFS().
exists(SysRoot +
"/lib/arm-linux-gnueabihf"))
64 return "arm-linux-gnueabihf";
66 if (D.
getVFS().
exists(SysRoot +
"/lib/arm-linux-gnueabi"))
67 return "arm-linux-gnueabi";
70 case llvm::Triple::armeb:
71 case llvm::Triple::thumbeb:
72 if (TargetEnvironment == llvm::Triple::GNUEABIHF) {
73 if (D.
getVFS().
exists(SysRoot +
"/lib/armeb-linux-gnueabihf"))
74 return "armeb-linux-gnueabihf";
76 if (D.
getVFS().
exists(SysRoot +
"/lib/armeb-linux-gnueabi"))
77 return "armeb-linux-gnueabi";
80 case llvm::Triple::x86:
82 return "i686-linux-android";
84 return "i386-linux-gnu";
86 case llvm::Triple::x86_64:
88 return "x86_64-linux-android";
90 if (TargetEnvironment != llvm::Triple::GNUX32 &&
92 return "x86_64-linux-gnu";
94 case llvm::Triple::aarch64:
96 return "aarch64-linux-android";
97 if (D.
getVFS().
exists(SysRoot +
"/lib/aarch64-linux-gnu"))
98 return "aarch64-linux-gnu";
100 case llvm::Triple::aarch64_be:
101 if (D.
getVFS().
exists(SysRoot +
"/lib/aarch64_be-linux-gnu"))
102 return "aarch64_be-linux-gnu";
104 case llvm::Triple::mips:
106 return "mips-linux-gnu";
108 case llvm::Triple::mipsel:
110 return "mipsel-linux-android";
111 if (D.
getVFS().
exists(SysRoot +
"/lib/mipsel-linux-gnu"))
112 return "mipsel-linux-gnu";
114 case llvm::Triple::mips64:
115 if (D.
getVFS().
exists(SysRoot +
"/lib/mips64-linux-gnu"))
116 return "mips64-linux-gnu";
117 if (D.
getVFS().
exists(SysRoot +
"/lib/mips64-linux-gnuabi64"))
118 return "mips64-linux-gnuabi64";
120 case llvm::Triple::mips64el:
122 return "mips64el-linux-android";
123 if (D.
getVFS().
exists(SysRoot +
"/lib/mips64el-linux-gnu"))
124 return "mips64el-linux-gnu";
125 if (D.
getVFS().
exists(SysRoot +
"/lib/mips64el-linux-gnuabi64"))
126 return "mips64el-linux-gnuabi64";
128 case llvm::Triple::ppc:
129 if (D.
getVFS().
exists(SysRoot +
"/lib/powerpc-linux-gnuspe"))
130 return "powerpc-linux-gnuspe";
131 if (D.
getVFS().
exists(SysRoot +
"/lib/powerpc-linux-gnu"))
132 return "powerpc-linux-gnu";
134 case llvm::Triple::ppc64:
135 if (D.
getVFS().
exists(SysRoot +
"/lib/powerpc64-linux-gnu"))
136 return "powerpc64-linux-gnu";
138 case llvm::Triple::ppc64le:
139 if (D.
getVFS().
exists(SysRoot +
"/lib/powerpc64le-linux-gnu"))
140 return "powerpc64le-linux-gnu";
142 case llvm::Triple::sparc:
143 if (D.
getVFS().
exists(SysRoot +
"/lib/sparc-linux-gnu"))
144 return "sparc-linux-gnu";
146 case llvm::Triple::sparcv9:
147 if (D.
getVFS().
exists(SysRoot +
"/lib/sparc64-linux-gnu"))
148 return "sparc64-linux-gnu";
150 case llvm::Triple::systemz:
151 if (D.
getVFS().
exists(SysRoot +
"/lib/s390x-linux-gnu"))
152 return "s390x-linux-gnu";
155 return TargetTriple.str();
158 static StringRef
getOSLibDir(
const llvm::Triple &Triple,
const ArgList &Args) {
159 if (Triple.isMIPS()) {
160 if (Triple.isAndroid()) {
164 if (CPUName ==
"mips32r6")
166 if (CPUName ==
"mips32r2")
174 return Triple.isArch32Bit() ?
"lib" :
"lib64";
186 if (Triple.getArch() == llvm::Triple::x86 ||
187 Triple.getArch() == llvm::Triple::ppc)
190 if (Triple.getArch() == llvm::Triple::x86_64 &&
191 Triple.getEnvironment() == llvm::Triple::GNUX32)
194 if (Triple.getArch() == llvm::Triple::riscv32)
197 return Triple.isArch32Bit() ?
"lib" :
"lib64";
202 StringRef InstallPath,
205 for (
const auto &Path : PathsCallback(Multilib))
213 llvm::Triple::ArchType Arch = Triple.getArch();
250 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)
253 const bool IsAndroid = Triple.isAndroid();
254 const bool IsMips = Triple.isMIPS();
255 const bool IsHexagon = Arch == llvm::Triple::hexagon;
257 Arch == llvm::Triple::riscv32 || Arch == llvm::Triple::riscv64;
259 if (IsMips && !SysRoot.empty())
260 ExtraOpts.push_back(
"--sysroot=" + SysRoot);
268 if (!IsMips && !IsAndroid && !IsHexagon) {
275 ExtraOpts.push_back(
"--hash-style=both");
281 #ifdef ENABLE_LINKER_BUILD_ID 286 ExtraOpts.push_back(
"--enable-new-dtags");
295 const std::string OSLibDir =
getOSLibDir(Triple, Args);
345 if (StringRef(LibPath).startswith(SysRoot)) {
356 if (StringRef(D.
Dir).startswith(SysRoot)) {
371 Triple.getEnvironmentVersion(Major, Minor, Micro);
373 SysRoot +
"/usr/lib/" + MultiarchTriple +
"/" +
374 llvm::to_string(Major),
382 if (Triple.getVendor() == llvm::Triple::OpenEmbedded &&
383 Triple.isArch64Bit())
390 addPathIfExists(D, SysRoot +
"/usr/" + OSLibDir +
"/" + ABIName, Paths);
398 "/../../" + OSLibDir,
405 BiarchSibling.gccSuffix(),
420 if (StringRef(LibPath).startswith(SysRoot))
429 if (StringRef(D.
Dir).startswith(SysRoot))
452 std::string AndroidSysRootPath = (ClangDir +
"/../sysroot").str();
454 return AndroidSysRootPath;
458 return std::string();
469 (InstallDir +
"/../../../../" + TripleStr +
"/libc" + Multilib.
osSuffix())
475 Path = (InstallDir +
"/../../../../sysroot" + Multilib.
osSuffix()).str();
480 return std::string();
484 const llvm::Triple::ArchType Arch =
getArch();
485 const llvm::Triple &Triple =
getTriple();
489 if (Triple.isAndroid())
490 return Triple.isArch64Bit() ?
"/system/bin/linker64" :
"/system/bin/linker";
492 if (Triple.isMusl()) {
493 std::string ArchName;
497 case llvm::Triple::arm:
498 case llvm::Triple::thumb:
502 case llvm::Triple::armeb:
503 case llvm::Triple::thumbeb:
508 ArchName = Triple.getArchName().str();
511 (Triple.getEnvironment() == llvm::Triple::MuslEABIHF ||
515 return "/lib/ld-musl-" + ArchName +
".so.1";
523 llvm_unreachable(
"unsupported architecture");
525 case llvm::Triple::aarch64:
527 Loader =
"ld-linux-aarch64.so.1";
529 case llvm::Triple::aarch64_be:
531 Loader =
"ld-linux-aarch64_be.so.1";
533 case llvm::Triple::arm:
534 case llvm::Triple::thumb:
535 case llvm::Triple::armeb:
536 case llvm::Triple::thumbeb: {
538 Triple.getEnvironment() == llvm::Triple::GNUEABIHF ||
542 Loader = HF ?
"ld-linux-armhf.so.3" :
"ld-linux.so.3";
545 case llvm::Triple::mips:
546 case llvm::Triple::mipsel:
547 case llvm::Triple::mips64:
548 case llvm::Triple::mips64el: {
554 Loader = IsNaN2008 ?
"ld-uClibc-mipsn8.so.0" :
"ld-uClibc.so.0";
555 else if (!Triple.hasEnvironment() &&
556 Triple.getVendor() == llvm::Triple::VendorType::MipsTechnologies)
558 Triple.isLittleEndian() ?
"ld-musl-mipsel.so.1" :
"ld-musl-mips.so.1";
560 Loader = IsNaN2008 ?
"ld-linux-mipsn8.so.1" :
"ld.so.1";
564 case llvm::Triple::ppc:
568 case llvm::Triple::ppc64:
573 case llvm::Triple::ppc64le:
578 case llvm::Triple::riscv32: {
581 Loader = (
"ld-linux-riscv32-" + ABIName +
".so.1").str();
584 case llvm::Triple::riscv64: {
587 Loader = (
"ld-linux-riscv64-" + ABIName +
".so.1").str();
590 case llvm::Triple::sparc:
591 case llvm::Triple::sparcel:
593 Loader =
"ld-linux.so.2";
595 case llvm::Triple::sparcv9:
597 Loader =
"ld-linux.so.2";
599 case llvm::Triple::systemz:
601 Loader =
"ld64.so.1";
603 case llvm::Triple::x86:
605 Loader =
"ld-linux.so.2";
607 case llvm::Triple::x86_64: {
608 bool X32 = Triple.getEnvironment() == llvm::Triple::GNUX32;
610 LibDir = X32 ?
"libx32" :
"lib64";
611 Loader = X32 ?
"ld-linux-x32.so.2" :
"ld-linux-x86-64.so.2";
616 if (Distro ==
Distro::Exherbo && (Triple.getVendor() == llvm::Triple::UnknownVendor ||
617 Triple.getVendor() == llvm::Triple::PC))
618 return "/usr/" + Triple.str() +
"/lib/" + Loader;
619 return "/" + LibDir +
"/" + Loader;
623 ArgStringList &CC1Args)
const {
627 if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
630 if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
633 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
635 llvm::sys::path::append(P,
"include");
639 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
643 StringRef CIncludeDirs(C_INCLUDE_DIRS);
644 if (CIncludeDirs !=
"") {
646 CIncludeDirs.split(dirs,
":");
647 for (StringRef dir : dirs) {
649 llvm::sys::path::is_absolute(dir) ? StringRef(SysRoot) :
"";
669 const StringRef X86_64MultiarchIncludeDirs[] = {
670 "/usr/include/x86_64-linux-gnu",
675 "/usr/include/i686-linux-gnu/64",
"/usr/include/i486-linux-gnu/64"};
676 const StringRef X86MultiarchIncludeDirs[] = {
677 "/usr/include/i386-linux-gnu",
682 "/usr/include/x86_64-linux-gnu/32",
"/usr/include/i686-linux-gnu",
683 "/usr/include/i486-linux-gnu"};
684 const StringRef AArch64MultiarchIncludeDirs[] = {
685 "/usr/include/aarch64-linux-gnu"};
686 const StringRef ARMMultiarchIncludeDirs[] = {
687 "/usr/include/arm-linux-gnueabi"};
688 const StringRef ARMHFMultiarchIncludeDirs[] = {
689 "/usr/include/arm-linux-gnueabihf"};
690 const StringRef ARMEBMultiarchIncludeDirs[] = {
691 "/usr/include/armeb-linux-gnueabi"};
692 const StringRef ARMEBHFMultiarchIncludeDirs[] = {
693 "/usr/include/armeb-linux-gnueabihf"};
694 const StringRef MIPSMultiarchIncludeDirs[] = {
"/usr/include/mips-linux-gnu"};
695 const StringRef MIPSELMultiarchIncludeDirs[] = {
696 "/usr/include/mipsel-linux-gnu"};
697 const StringRef MIPS64MultiarchIncludeDirs[] = {
698 "/usr/include/mips64-linux-gnu",
"/usr/include/mips64-linux-gnuabi64"};
699 const StringRef MIPS64ELMultiarchIncludeDirs[] = {
700 "/usr/include/mips64el-linux-gnu",
701 "/usr/include/mips64el-linux-gnuabi64"};
702 const StringRef PPCMultiarchIncludeDirs[] = {
703 "/usr/include/powerpc-linux-gnu"};
704 const StringRef PPC64MultiarchIncludeDirs[] = {
705 "/usr/include/powerpc64-linux-gnu"};
706 const StringRef PPC64LEMultiarchIncludeDirs[] = {
707 "/usr/include/powerpc64le-linux-gnu"};
708 const StringRef SparcMultiarchIncludeDirs[] = {
709 "/usr/include/sparc-linux-gnu"};
710 const StringRef Sparc64MultiarchIncludeDirs[] = {
711 "/usr/include/sparc64-linux-gnu"};
712 const StringRef SYSTEMZMultiarchIncludeDirs[] = {
713 "/usr/include/s390x-linux-gnu"};
716 case llvm::Triple::x86_64:
717 MultiarchIncludeDirs = X86_64MultiarchIncludeDirs;
719 case llvm::Triple::x86:
720 MultiarchIncludeDirs = X86MultiarchIncludeDirs;
722 case llvm::Triple::aarch64:
723 case llvm::Triple::aarch64_be:
724 MultiarchIncludeDirs = AArch64MultiarchIncludeDirs;
726 case llvm::Triple::arm:
727 case llvm::Triple::thumb:
728 if (
getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
729 MultiarchIncludeDirs = ARMHFMultiarchIncludeDirs;
731 MultiarchIncludeDirs = ARMMultiarchIncludeDirs;
733 case llvm::Triple::armeb:
734 case llvm::Triple::thumbeb:
735 if (
getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
736 MultiarchIncludeDirs = ARMEBHFMultiarchIncludeDirs;
738 MultiarchIncludeDirs = ARMEBMultiarchIncludeDirs;
740 case llvm::Triple::mips:
741 MultiarchIncludeDirs = MIPSMultiarchIncludeDirs;
743 case llvm::Triple::mipsel:
744 MultiarchIncludeDirs = MIPSELMultiarchIncludeDirs;
746 case llvm::Triple::mips64:
747 MultiarchIncludeDirs = MIPS64MultiarchIncludeDirs;
749 case llvm::Triple::mips64el:
750 MultiarchIncludeDirs = MIPS64ELMultiarchIncludeDirs;
752 case llvm::Triple::ppc:
753 MultiarchIncludeDirs = PPCMultiarchIncludeDirs;
755 case llvm::Triple::ppc64:
756 MultiarchIncludeDirs = PPC64MultiarchIncludeDirs;
758 case llvm::Triple::ppc64le:
759 MultiarchIncludeDirs = PPC64LEMultiarchIncludeDirs;
761 case llvm::Triple::sparc:
762 MultiarchIncludeDirs = SparcMultiarchIncludeDirs;
764 case llvm::Triple::sparcv9:
765 MultiarchIncludeDirs = Sparc64MultiarchIncludeDirs;
767 case llvm::Triple::systemz:
768 MultiarchIncludeDirs = SYSTEMZMultiarchIncludeDirs;
774 const std::string AndroidMultiarchIncludeDir =
775 std::string(
"/usr/include/") +
777 const StringRef AndroidMultiarchIncludeDirs[] = {AndroidMultiarchIncludeDir};
779 MultiarchIncludeDirs = AndroidMultiarchIncludeDirs;
781 for (StringRef Dir : MultiarchIncludeDirs) {
802 std::string MaxVersionString =
"";
803 for (llvm::sys::fs::directory_iterator LI(base, EC), LE; !EC && LI != LE;
804 LI = LI.increment(EC)) {
805 StringRef VersionText = llvm::sys::path::filename(LI->path());
807 if (VersionText[0] ==
'v' &&
808 !VersionText.slice(1, StringRef::npos).getAsInteger(10, Version)) {
809 if (Version > MaxVersion) {
810 MaxVersion = Version;
811 MaxVersionString = VersionText;
815 return MaxVersion ? (base +
"/" + MaxVersionString).str() :
"";
819 llvm::opt::ArgStringList &CC1Args)
const {
821 const std::string LibCXXIncludePathCandidates[] = {
829 for (
const auto &IncludePath : LibCXXIncludePathCandidates) {
830 if (IncludePath.empty() || !
getVFS().
exists(IncludePath))
839 llvm::opt::ArgStringList &CC1Args)
const {
854 const std::string TargetMultiarchTriple =
860 "/c++/" + Version.
Text, TripleStr,
861 GCCMultiarchTriple, TargetMultiarchTriple,
867 const std::string LibStdCXXIncludePathCandidates[] = {
870 InstallDir.str() +
"/include/g++-v" + Version.
Text,
871 InstallDir.str() +
"/include/g++-v" + Version.
MajorStr +
"." +
873 InstallDir.str() +
"/include/g++-v" + Version.
MajorStr,
875 LibDir.str() +
"/../" + TripleStr.str() +
"/include/c++/" + Version.
Text,
878 LibDir.str() +
"/../include/c++",
881 for (
const auto &IncludePath : LibStdCXXIncludePathCandidates) {
891 ArgStringList &CC1Args)
const {
896 ArgStringList &CC1Args)
const {
898 CC1Args.push_back(
"-isystem");
899 CC1Args.push_back(DriverArgs.MakeArgString(
911 const bool IsX86 =
getTriple().getArch() == llvm::Triple::x86;
912 const bool IsX86_64 =
getTriple().getArch() == llvm::Triple::x86_64;
913 const bool IsMIPS =
getTriple().isMIPS32();
914 const bool IsMIPS64 =
getTriple().isMIPS64();
915 const bool IsPowerPC64 =
getTriple().getArch() == llvm::Triple::ppc64 ||
916 getTriple().getArch() == llvm::Triple::ppc64le;
917 const bool IsAArch64 =
getTriple().getArch() == llvm::Triple::aarch64 ||
918 getTriple().getArch() == llvm::Triple::aarch64_be;
919 const bool IsArmArch =
getTriple().getArch() == llvm::Triple::arm ||
920 getTriple().getArch() == llvm::Triple::thumb ||
921 getTriple().getArch() == llvm::Triple::armeb ||
922 getTriple().getArch() == llvm::Triple::thumbeb;
924 Res |= SanitizerKind::Address;
925 Res |= SanitizerKind::Fuzzer;
926 Res |= SanitizerKind::FuzzerNoLink;
927 Res |= SanitizerKind::KernelAddress;
928 Res |= SanitizerKind::Memory;
929 Res |= SanitizerKind::Vptr;
930 Res |= SanitizerKind::SafeStack;
931 if (IsX86_64 || IsMIPS64 || IsAArch64)
932 Res |= SanitizerKind::DataFlow;
933 if (IsX86_64 || IsMIPS64 || IsAArch64 || IsX86 || IsArmArch || IsPowerPC64)
934 Res |= SanitizerKind::Leak;
935 if (IsX86_64 || IsMIPS64 || IsAArch64 || IsPowerPC64)
936 Res |= SanitizerKind::Thread;
937 if (IsX86_64 || IsMIPS64)
938 Res |= SanitizerKind::Efficiency;
939 if (IsX86 || IsX86_64)
940 Res |= SanitizerKind::Function;
941 if (IsX86_64 || IsMIPS64 || IsAArch64 || IsX86 || IsMIPS || IsArmArch ||
943 Res |= SanitizerKind::Scudo;
944 if (IsX86_64 || IsAArch64) {
945 Res |= SanitizerKind::HWAddress;
946 Res |= SanitizerKind::KernelHWAddress;
952 llvm::opt::ArgStringList &CmdArgs)
const {
957 if (!Args.hasArg(options::OPT_coverage))
958 CmdArgs.push_back(Args.MakeArgString(
959 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.
const char * getInstalledDir() const
Get the path to where the clang executable was installed.
bool exists(const Twine &Path)
Check whether a file exists. Provided for convenience.
std::string ResourceDir
The path to the compiler resource directory.