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>
26 using namespace clang::driver;
27 using namespace clang::driver::toolchains;
28 using namespace clang;
29 using namespace llvm::opt;
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();
218 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)
221 const bool IsAndroid = Triple.isAndroid();
223 const bool IsHexagon = Arch == llvm::Triple::hexagon;
225 if (IsMips && !SysRoot.empty())
226 ExtraOpts.push_back(
"--sysroot=" + SysRoot);
234 if (!IsMips && !IsAndroid && !IsHexagon) {
241 ExtraOpts.push_back(
"--hash-style=both");
247 #ifdef ENABLE_LINKER_BUILD_ID
252 ExtraOpts.push_back(
"--enable-new-dtags");
261 const std::string OSLibDir =
getOSLibDir(Triple, Args);
311 if (StringRef(LibPath).startswith(SysRoot)) {
322 if (StringRef(D.
Dir).startswith(SysRoot)) {
337 "/../../" + OSLibDir,
344 BiarchSibling.gccSuffix(),
359 if (StringRef(LibPath).startswith(SysRoot))
368 if (StringRef(D.
Dir).startswith(SysRoot))
388 return std::string();
399 (InstallDir +
"/../../../../" + TripleStr +
"/libc" + Multilib.
osSuffix())
405 Path = (InstallDir +
"/../../../../sysroot" + Multilib.
osSuffix()).str();
410 return std::string();
414 const llvm::Triple::ArchType Arch =
getArch();
415 const llvm::Triple &Triple =
getTriple();
419 if (Triple.isAndroid())
420 return Triple.isArch64Bit() ?
"/system/bin/linker64" :
"/system/bin/linker";
422 if (Triple.isMusl()) {
423 std::string ArchName;
427 case llvm::Triple::arm:
428 case llvm::Triple::thumb:
432 case llvm::Triple::armeb:
433 case llvm::Triple::thumbeb:
438 ArchName = Triple.getArchName().str();
441 (Triple.getEnvironment() == llvm::Triple::MuslEABIHF ||
445 return "/lib/ld-musl-" + ArchName +
".so.1";
453 llvm_unreachable(
"unsupported architecture");
455 case llvm::Triple::aarch64:
457 Loader =
"ld-linux-aarch64.so.1";
459 case llvm::Triple::aarch64_be:
461 Loader =
"ld-linux-aarch64_be.so.1";
463 case llvm::Triple::arm:
464 case llvm::Triple::thumb:
465 case llvm::Triple::armeb:
466 case llvm::Triple::thumbeb: {
468 Triple.getEnvironment() == llvm::Triple::GNUEABIHF ||
472 Loader = HF ?
"ld-linux-armhf.so.3" :
"ld-linux.so.3";
475 case llvm::Triple::mips:
476 case llvm::Triple::mipsel:
477 case llvm::Triple::mips64:
478 case llvm::Triple::mips64el: {
479 bool LE = (Triple.getArch() == llvm::Triple::mipsel) ||
480 (Triple.getArch() == llvm::Triple::mips64el);
486 Loader = IsNaN2008 ?
"ld-uClibc-mipsn8.so.0" :
"ld-uClibc.so.0";
487 else if (!Triple.hasEnvironment() &&
488 Triple.getVendor() == llvm::Triple::VendorType::MipsTechnologies)
489 Loader = LE ?
"ld-musl-mipsel.so.1" :
"ld-musl-mips.so.1";
491 Loader = IsNaN2008 ?
"ld-linux-mipsn8.so.1" :
"ld.so.1";
495 case llvm::Triple::ppc:
499 case llvm::Triple::ppc64:
504 case llvm::Triple::ppc64le:
509 case llvm::Triple::sparc:
510 case llvm::Triple::sparcel:
512 Loader =
"ld-linux.so.2";
514 case llvm::Triple::sparcv9:
516 Loader =
"ld-linux.so.2";
518 case llvm::Triple::systemz:
520 Loader =
"ld64.so.1";
522 case llvm::Triple::x86:
524 Loader =
"ld-linux.so.2";
526 case llvm::Triple::x86_64: {
527 bool X32 = Triple.getEnvironment() == llvm::Triple::GNUX32;
529 LibDir = X32 ?
"libx32" :
"lib64";
530 Loader = X32 ?
"ld-linux-x32.so.2" :
"ld-linux-x86-64.so.2";
535 if (Distro ==
Distro::Exherbo && (Triple.getVendor() == llvm::Triple::UnknownVendor ||
536 Triple.getVendor() == llvm::Triple::PC))
537 return "/usr/" + Triple.str() +
"/lib/" + Loader;
538 return "/" + LibDir +
"/" + Loader;
542 ArgStringList &CC1Args)
const {
546 if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
549 if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
552 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
554 llvm::sys::path::append(P,
"include");
558 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
562 StringRef CIncludeDirs(C_INCLUDE_DIRS);
563 if (CIncludeDirs !=
"") {
565 CIncludeDirs.split(dirs,
":");
566 for (StringRef dir : dirs) {
568 llvm::sys::path::is_absolute(dir) ? StringRef(SysRoot) :
"";
588 const StringRef X86_64MultiarchIncludeDirs[] = {
589 "/usr/include/x86_64-linux-gnu",
594 "/usr/include/i686-linux-gnu/64",
"/usr/include/i486-linux-gnu/64"};
595 const StringRef X86MultiarchIncludeDirs[] = {
596 "/usr/include/i386-linux-gnu",
601 "/usr/include/x86_64-linux-gnu/32",
"/usr/include/i686-linux-gnu",
602 "/usr/include/i486-linux-gnu"};
603 const StringRef AArch64MultiarchIncludeDirs[] = {
604 "/usr/include/aarch64-linux-gnu"};
605 const StringRef ARMMultiarchIncludeDirs[] = {
606 "/usr/include/arm-linux-gnueabi"};
607 const StringRef ARMHFMultiarchIncludeDirs[] = {
608 "/usr/include/arm-linux-gnueabihf"};
609 const StringRef ARMEBMultiarchIncludeDirs[] = {
610 "/usr/include/armeb-linux-gnueabi"};
611 const StringRef ARMEBHFMultiarchIncludeDirs[] = {
612 "/usr/include/armeb-linux-gnueabihf"};
613 const StringRef MIPSMultiarchIncludeDirs[] = {
"/usr/include/mips-linux-gnu"};
614 const StringRef MIPSELMultiarchIncludeDirs[] = {
615 "/usr/include/mipsel-linux-gnu"};
616 const StringRef MIPS64MultiarchIncludeDirs[] = {
617 "/usr/include/mips64-linux-gnu",
"/usr/include/mips64-linux-gnuabi64"};
618 const StringRef MIPS64ELMultiarchIncludeDirs[] = {
619 "/usr/include/mips64el-linux-gnu",
620 "/usr/include/mips64el-linux-gnuabi64"};
621 const StringRef PPCMultiarchIncludeDirs[] = {
622 "/usr/include/powerpc-linux-gnu"};
623 const StringRef PPC64MultiarchIncludeDirs[] = {
624 "/usr/include/powerpc64-linux-gnu"};
625 const StringRef PPC64LEMultiarchIncludeDirs[] = {
626 "/usr/include/powerpc64le-linux-gnu"};
627 const StringRef SparcMultiarchIncludeDirs[] = {
628 "/usr/include/sparc-linux-gnu"};
629 const StringRef Sparc64MultiarchIncludeDirs[] = {
630 "/usr/include/sparc64-linux-gnu"};
631 const StringRef SYSTEMZMultiarchIncludeDirs[] = {
632 "/usr/include/s390x-linux-gnu"};
635 case llvm::Triple::x86_64:
636 MultiarchIncludeDirs = X86_64MultiarchIncludeDirs;
638 case llvm::Triple::x86:
639 MultiarchIncludeDirs = X86MultiarchIncludeDirs;
641 case llvm::Triple::aarch64:
642 case llvm::Triple::aarch64_be:
643 MultiarchIncludeDirs = AArch64MultiarchIncludeDirs;
645 case llvm::Triple::arm:
646 case llvm::Triple::thumb:
647 if (
getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
648 MultiarchIncludeDirs = ARMHFMultiarchIncludeDirs;
650 MultiarchIncludeDirs = ARMMultiarchIncludeDirs;
652 case llvm::Triple::armeb:
653 case llvm::Triple::thumbeb:
654 if (
getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
655 MultiarchIncludeDirs = ARMEBHFMultiarchIncludeDirs;
657 MultiarchIncludeDirs = ARMEBMultiarchIncludeDirs;
659 case llvm::Triple::mips:
660 MultiarchIncludeDirs = MIPSMultiarchIncludeDirs;
662 case llvm::Triple::mipsel:
663 MultiarchIncludeDirs = MIPSELMultiarchIncludeDirs;
665 case llvm::Triple::mips64:
666 MultiarchIncludeDirs = MIPS64MultiarchIncludeDirs;
668 case llvm::Triple::mips64el:
669 MultiarchIncludeDirs = MIPS64ELMultiarchIncludeDirs;
671 case llvm::Triple::ppc:
672 MultiarchIncludeDirs = PPCMultiarchIncludeDirs;
674 case llvm::Triple::ppc64:
675 MultiarchIncludeDirs = PPC64MultiarchIncludeDirs;
677 case llvm::Triple::ppc64le:
678 MultiarchIncludeDirs = PPC64LEMultiarchIncludeDirs;
680 case llvm::Triple::sparc:
681 MultiarchIncludeDirs = SparcMultiarchIncludeDirs;
683 case llvm::Triple::sparcv9:
684 MultiarchIncludeDirs = Sparc64MultiarchIncludeDirs;
686 case llvm::Triple::systemz:
687 MultiarchIncludeDirs = SYSTEMZMultiarchIncludeDirs;
692 for (StringRef Dir : MultiarchIncludeDirs) {
713 std::string MaxVersionString =
"";
714 for (llvm::sys::fs::directory_iterator LI(base, EC), LE; !EC && LI != LE;
715 LI = LI.increment(EC)) {
716 StringRef VersionText = llvm::sys::path::filename(LI->path());
718 if (VersionText[0] ==
'v' &&
719 !VersionText.slice(1, StringRef::npos).getAsInteger(10, Version)) {
720 if (Version > MaxVersion) {
721 MaxVersion = Version;
722 MaxVersionString = VersionText;
726 return MaxVersion ? (base +
"/" + MaxVersionString).str() :
"";
730 const std::string LibCXXIncludePathCandidates[] = {
737 for (
const auto &IncludePath : LibCXXIncludePathCandidates) {
738 if (IncludePath.empty() || !
getVFS().
exists(IncludePath))
747 llvm::opt::ArgStringList &CC1Args)
const {
762 const std::string TargetMultiarchTriple =
768 "/c++/" + Version.
Text, TripleStr,
769 GCCMultiarchTriple, TargetMultiarchTriple,
775 const std::string LibStdCXXIncludePathCandidates[] = {
778 InstallDir.str() +
"/include/g++-v" + Version.
Text,
779 InstallDir.str() +
"/include/g++-v" + Version.
MajorStr +
"." +
781 InstallDir.str() +
"/include/g++-v" + Version.
MajorStr,
783 LibDir.str() +
"/../" + TripleStr.str() +
"/include/c++/" + Version.
Text,
786 LibDir.str() +
"/../include/c++",
789 for (
const auto &IncludePath : LibStdCXXIncludePathCandidates) {
799 ArgStringList &CC1Args)
const {
804 ArgStringList &CC1Args)
const {
806 CC1Args.push_back(
"-isystem");
807 CC1Args.push_back(DriverArgs.MakeArgString(
816 const bool IsX86 =
getTriple().getArch() == llvm::Triple::x86;
817 const bool IsX86_64 =
getTriple().getArch() == llvm::Triple::x86_64;
818 const bool IsMIPS64 =
getTriple().getArch() == llvm::Triple::mips64 ||
819 getTriple().getArch() == llvm::Triple::mips64el;
820 const bool IsPowerPC64 =
getTriple().getArch() == llvm::Triple::ppc64 ||
821 getTriple().getArch() == llvm::Triple::ppc64le;
822 const bool IsAArch64 =
getTriple().getArch() == llvm::Triple::aarch64 ||
823 getTriple().getArch() == llvm::Triple::aarch64_be;
824 const bool IsArmArch =
getTriple().getArch() == llvm::Triple::arm ||
825 getTriple().getArch() == llvm::Triple::thumb ||
826 getTriple().getArch() == llvm::Triple::armeb ||
827 getTriple().getArch() == llvm::Triple::thumbeb;
829 Res |= SanitizerKind::Address;
830 Res |= SanitizerKind::Fuzzer;
831 Res |= SanitizerKind::KernelAddress;
832 Res |= SanitizerKind::Vptr;
833 Res |= SanitizerKind::SafeStack;
834 if (IsX86_64 || IsMIPS64 || IsAArch64)
835 Res |= SanitizerKind::DataFlow;
836 if (IsX86_64 || IsMIPS64 || IsAArch64 || IsX86 || IsArmArch)
837 Res |= SanitizerKind::Leak;
838 if (IsX86_64 || IsMIPS64 || IsAArch64 || IsPowerPC64)
839 Res |= SanitizerKind::Thread;
840 if (IsX86_64 || IsMIPS64 || IsPowerPC64 || IsAArch64)
841 Res |= SanitizerKind::Memory;
842 if (IsX86_64 || IsMIPS64)
843 Res |= SanitizerKind::Efficiency;
844 if (IsX86 || IsX86_64) {
845 Res |= SanitizerKind::Function;
851 llvm::opt::ArgStringList &CmdArgs)
const {
856 if (!Args.hasArg(options::OPT_coverage))
857 CmdArgs.push_back(Args.MakeArgString(
858 Twine(
"-u", llvm::getInstrProfRuntimeHookVarName())));
const std::string & includeSuffix() const
Get the include directory suffix.
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
Distro - Helper class for detecting and classifying Linux distributions.
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)
static std::string DetectLibcxxIncludePath(StringRef base)
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
MatchFinder::MatchCallback * Callback
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag...
vfs::FileSystem & getVFS() 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.
static void addMultilibsFilePaths(const Driver &D, const MultilibSet &Multilibs, const Multilib &Multilib, StringRef InstallPath, ToolChain::path_list &Paths)
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.
const IncludeDirsFunc & filePathsCallback() const
void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
const IncludeDirsFunc & includeDirsCallback() const
std::string ResourceDir
The path to the compiler resource directory.