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-rw-r--r--debian/patches/kfreebsd/kfreebsd-triple-clang.diff632
1 files changed, 632 insertions, 0 deletions
diff --git a/debian/patches/kfreebsd/kfreebsd-triple-clang.diff b/debian/patches/kfreebsd/kfreebsd-triple-clang.diff
new file mode 100644
index 0000000..b118189
--- /dev/null
+++ b/debian/patches/kfreebsd/kfreebsd-triple-clang.diff
@@ -0,0 +1,632 @@
+Index: llvm-toolchain-8_8~+rc2/clang/lib/Driver/CMakeLists.txt
+===================================================================
+--- llvm-toolchain-8_8~+rc2.orig/clang/lib/Driver/CMakeLists.txt
++++ llvm-toolchain-8_8~+rc2/clang/lib/Driver/CMakeLists.txt
+@@ -49,6 +49,7 @@ add_clang_library(clangDriver
+ ToolChains/HIP.cpp
+ ToolChains/Hexagon.cpp
+ ToolChains/Hurd.cpp
++ ToolChains/KFreeBSD.cpp
+ ToolChains/Linux.cpp
+ ToolChains/MipsLinux.cpp
+ ToolChains/MinGW.cpp
+Index: llvm-toolchain-8_8~+rc2/clang/lib/Driver/Driver.cpp
+===================================================================
+--- llvm-toolchain-8_8~+rc2.orig/clang/lib/Driver/Driver.cpp
++++ llvm-toolchain-8_8~+rc2/clang/lib/Driver/Driver.cpp
+@@ -27,6 +27,7 @@
+ #include "ToolChains/Haiku.h"
+ #include "ToolChains/Hexagon.h"
+ #include "ToolChains/Hurd.h"
++#include "ToolChains/KFreeBSD.h"
+ #include "ToolChains/Lanai.h"
+ #include "ToolChains/Linux.h"
+ #include "ToolChains/MSP430.h"
+@@ -4546,6 +4547,9 @@ const ToolChain &Driver::getToolChain(co
+ case llvm::Triple::FreeBSD:
+ TC = llvm::make_unique<toolchains::FreeBSD>(*this, Target, Args);
+ break;
++ case llvm::Triple::kFreeBSD:
++ TC = llvm::make_unique<toolchains::kFreeBSD>(*this, Target, Args);
++ break;
+ case llvm::Triple::Minix:
+ TC = llvm::make_unique<toolchains::Minix>(*this, Target, Args);
+ break;
+Index: llvm-toolchain-8_8~+rc2/clang/lib/Driver/ToolChains/Clang.cpp
+===================================================================
+--- llvm-toolchain-8_8~+rc2.orig/clang/lib/Driver/ToolChains/Clang.cpp
++++ llvm-toolchain-8_8~+rc2/clang/lib/Driver/ToolChains/Clang.cpp
+@@ -535,7 +535,7 @@ static bool useFramePointerForTargetByDe
+ }
+
+ if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI ||
+- Triple.isOSHurd()) {
++ Triple.isOSHurd() || Triple.isOSkFreeBSD()) {
+ switch (Triple.getArch()) {
+ // Don't use a frame pointer on linux if optimizing for certain targets.
+ case llvm::Triple::mips64:
+Index: llvm-toolchain-8_8~+rc2/clang/lib/Driver/ToolChains/Gnu.cpp
+===================================================================
+--- llvm-toolchain-8_8~+rc2.orig/clang/lib/Driver/ToolChains/Gnu.cpp
++++ llvm-toolchain-8_8~+rc2/clang/lib/Driver/ToolChains/Gnu.cpp
+@@ -259,6 +259,8 @@ static const char *getLDMOption(const ll
+ case llvm::Triple::x86:
+ if (T.isOSIAMCU())
+ return "elf_iamcu";
++ if (T.isOSkFreeBSD())
++ return "elf_i386_fbsd";
+ return "elf_i386";
+ case llvm::Triple::aarch64:
+ return "aarch64linux";
+@@ -303,6 +305,8 @@ static const char *getLDMOption(const ll
+ case llvm::Triple::x86_64:
+ if (T.getEnvironment() == llvm::Triple::GNUX32)
+ return "elf32_x86_64";
++ if (T.isOSkFreeBSD())
++ return "elf_x86_64_fbsd";
+ return "elf_x86_64";
+ default:
+ return nullptr;
+@@ -522,6 +526,18 @@ void tools::gnutools::Linker::ConstructJ
+ CmdArgs.push_back("--wrap=pthread_create");
+
+ CmdArgs.push_back("-lc");
++ if (getToolChain().getTriple().isOSkFreeBSD()) {
++ switch (getToolChain().getArch()) {
++ case llvm::Triple::x86_64:
++ CmdArgs.push_back("-rpath-link=/lib/x86_64-kfreebsd-gnu");
++ break;
++ case llvm::Triple::x86:
++ CmdArgs.push_back("-rpath-link=/lib/i386-kfreebsd-gnu");
++ break;
++ default:
++ break;
++ }
++ }
+
+ // Add IAMCU specific libs, if needed.
+ if (IsIAMCU)
+@@ -1898,7 +1914,8 @@ void Generic_GCC::GCCInstallationDetecto
+ "x86_64-redhat-linux", "x86_64-suse-linux",
+ "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
+ "x86_64-slackware-linux", "x86_64-unknown-linux",
+- "x86_64-amazon-linux", "x86_64-linux-android"};
++ "x86_64-amazon-linux", "x86_64-linux-android",
++ "x86_64-kfreebsd-gnu", "x86_64-pc-kfreebsd-gnu"};
+ static const char *const X32LibDirs[] = {"/libx32"};
+ static const char *const X86LibDirs[] = {"/lib32", "/lib"};
+ static const char *const X86Triples[] = {
+@@ -1907,7 +1924,9 @@ void Generic_GCC::GCCInstallationDetecto
+ "i586-redhat-linux", "i386-redhat-linux", "i586-suse-linux",
+ "i486-slackware-linux", "i686-montavista-linux", "i586-linux-gnu",
+ "i686-linux-android", "i386-gnu", "i486-gnu",
+- "i586-gnu", "i686-gnu"};
++ "i586-gnu", "i686-gnu",
++ "i686-kfreebsd-gnu", "i686-pc-kfreebsd-gnu", "i486-kfreebsd-gnu",
++ "i386-kfreebsd-gnu" };
+
+ static const char *const MIPSLibDirs[] = {"/lib"};
+ static const char *const MIPSTriples[] = {
+Index: llvm-toolchain-8_8~+rc2/clang/lib/Driver/ToolChains/KFreeBSD.cpp
+===================================================================
+--- /dev/null
++++ llvm-toolchain-8_8~+rc2/clang/lib/Driver/ToolChains/KFreeBSD.cpp
+@@ -0,0 +1,459 @@
++//===--- KFreeBSD.cpp - kFreeBSD ToolChain Implementations --------*- C++ -*-===//
++//
++// The LLVM Compiler Infrastructure
++//
++// This file is distributed under the University of Illinois Open Source
++// License. See LICENSE.TXT for details.
++//
++//===----------------------------------------------------------------------===//
++
++#include "KFreeBSD.h"
++#include "CommonArgs.h"
++#include "llvm/Support/VirtualFileSystem.h"
++#include "clang/Config/config.h"
++#include "clang/Driver/Driver.h"
++#include "clang/Driver/Options.h"
++#include "clang/Driver/SanitizerArgs.h"
++#include "llvm/Option/ArgList.h"
++#include "llvm/ProfileData/InstrProf.h"
++#include "llvm/Support/Path.h"
++
++using namespace clang::driver;
++using namespace clang::driver::toolchains;
++using namespace clang;
++using namespace llvm::opt;
++
++using tools::addPathIfExists;
++
++/// Get our best guess at the multiarch triple for a target.
++///
++/// Debian-based systems are starting to use a multiarch setup where they use
++/// a target-triple directory in the library and header search paths.
++/// Unfortunately, this triple does not align with the vanilla target triple,
++/// so we provide a rough mapping here.
++static std::string getMultiarchTriple(const Driver &D,
++ const llvm::Triple &TargetTriple,
++ StringRef SysRoot) {
++ // For most architectures, just use whatever we have rather than trying to be
++ // clever.
++ switch (TargetTriple.getArch()) {
++ default:
++ break;
++
++ // We use the existence of '/lib/<triple>' as a directory to detect
++ // some common kfreebsd triples that don't quite match the Clang
++ // triple for both 32-bit and 64-bit targets. Multiarch fixes its
++ // install triples to these regardless of what the actual target
++ // triple is.
++ case llvm::Triple::x86_64:
++ if (D.getVFS().exists(SysRoot + "/lib/x86_64-kfreebsd-gnu"))
++ return "x86_64-kfreebsd-gnu";
++ break;
++ case llvm::Triple::x86:
++ if (D.getVFS().exists(SysRoot + "/lib/i386-kfreebsd-gnu"))
++ return "i386-kfreebsd-gnu";
++ break;
++ }
++
++ return TargetTriple.str();
++}
++
++static StringRef getOSLibDir(const llvm::Triple &Triple, const ArgList &Args) {
++ // It happens that only x86 and PPC use the 'lib32' variant of oslibdir, and
++ // using that variant while targeting other architectures causes problems
++ // because the libraries are laid out in shared system roots that can't cope
++ // with a 'lib32' library search path being considered. So we only enable
++ // them when we know we may need it.
++ //
++ // FIXME: This is a bit of a hack. We should really unify this code for
++ // reasoning about oslibdir spellings with the lib dir spellings in the
++ // GCCInstallationDetector, but that is a more significant refactoring.
++
++ if (Triple.getArch() == llvm::Triple::x86)
++ return "lib";
++
++ if (Triple.getArch() == llvm::Triple::x86_64)
++ return "lib";
++
++ return Triple.isArch32Bit() ? "lib" : "lib64";
++}
++
++static void addMultilibsFilePaths(const Driver &D, const MultilibSet &Multilibs,
++ const Multilib &Multilib,
++ StringRef InstallPath,
++ ToolChain::path_list &Paths) {
++ if (const auto &PathsCallback = Multilibs.filePathsCallback())
++ for (const auto &Path : PathsCallback(Multilib))
++ addPathIfExists(D, InstallPath + Path, Paths);
++}
++
++kFreeBSD::kFreeBSD(const Driver &D, const llvm::Triple &Triple,
++ const ArgList &Args)
++ : Generic_ELF(D, Triple, Args) {
++ GCCInstallation.init(Triple, Args);
++ Multilibs = GCCInstallation.getMultilibs();
++ std::string SysRoot = computeSysRoot();
++
++ // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
++ // least) put various tools in a triple-prefixed directory off of the parent
++ // of the GCC installation. We use the GCC triple here to ensure that we end
++ // up with tools that support the same amount of cross compiling as the
++ // detected GCC installation. For example, if we find a GCC installation
++ // targeting x86_64, but it is a bi-arch GCC installation, it can also be
++ // used to target i386.
++ // FIXME: This seems unlikely to be Linux-, kFreeBSD- or Hurd-specific.
++ ToolChain::path_list &PPaths = getProgramPaths();
++ PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
++ GCCInstallation.getTriple().str() + "/bin")
++ .str());
++
++#ifdef ENABLE_LINKER_BUILD_ID
++ ExtraOpts.push_back("--build-id");
++#endif
++
++ // The selection of paths to try here is designed to match the patterns which
++ // the GCC driver itself uses, as this is part of the GCC-compatible driver.
++ // This was determined by running GCC in a fake filesystem, creating all
++ // possible permutations of these directories, and seeing which ones it added
++ // to the link paths.
++ path_list &Paths = getFilePaths();
++
++ const std::string OSLibDir = getOSLibDir(Triple, Args);
++ const std::string MultiarchTriple = getMultiarchTriple(D, Triple, SysRoot);
++
++ // Add the multilib suffixed paths where they are available.
++ if (GCCInstallation.isValid()) {
++ const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
++ const std::string &LibPath = GCCInstallation.getParentLibPath();
++ const Multilib &Multilib = GCCInstallation.getMultilib();
++ const MultilibSet &Multilibs = GCCInstallation.getMultilibs();
++
++ // Add toolchain / multilib specific file paths.
++ addMultilibsFilePaths(D, Multilibs, Multilib,
++ GCCInstallation.getInstallPath(), Paths);
++
++ // Sourcery CodeBench MIPS toolchain holds some libraries under
++ // a biarch-like suffix of the GCC installation.
++ addPathIfExists(D, GCCInstallation.getInstallPath() + Multilib.gccSuffix(),
++ Paths);
++
++ // GCC cross compiling toolchains will install target libraries which ship
++ // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as
++ // any part of the GCC installation in
++ // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat
++ // debatable, but is the reality today. We need to search this tree even
++ // when we have a sysroot somewhere else. It is the responsibility of
++ // whomever is doing the cross build targeting a sysroot using a GCC
++ // installation that is *not* within the system root to ensure two things:
++ //
++ // 1) Any DSOs that are linked in from this tree or from the install path
++ // above must be present on the system root and found via an
++ // appropriate rpath.
++ // 2) There must not be libraries installed into
++ // <prefix>/<triple>/<libdir> unless they should be preferred over
++ // those within the system root.
++ //
++ // Note that this matches the GCC behavior. See the below comment for where
++ // Clang diverges from GCC's behavior.
++ addPathIfExists(D, LibPath + "/../" + GCCTriple.str() + "/lib/../" +
++ OSLibDir + Multilib.osSuffix(),
++ Paths);
++
++ // If the GCC installation we found is inside of the sysroot, we want to
++ // prefer libraries installed in the parent prefix of the GCC installation.
++ // It is important to *not* use these paths when the GCC installation is
++ // outside of the system root as that can pick up unintended libraries.
++ // This usually happens when there is an external cross compiler on the
++ // host system, and a more minimal sysroot available that is the target of
++ // the cross. Note that GCC does include some of these directories in some
++ // configurations but this seems somewhere between questionable and simply
++ // a bug.
++ if (StringRef(LibPath).startswith(SysRoot)) {
++ addPathIfExists(D, LibPath + "/" + MultiarchTriple, Paths);
++ addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths);
++ }
++ }
++
++ // Similar to the logic for GCC above, if we currently running Clang inside
++ // of the requested system root, add its parent library paths to
++ // those searched.
++ // FIXME: It's not clear whether we should use the driver's installed
++ // directory ('Dir' below) or the ResourceDir.
++ if (StringRef(D.Dir).startswith(SysRoot)) {
++ addPathIfExists(D, D.Dir + "/../lib/" + MultiarchTriple, Paths);
++ addPathIfExists(D, D.Dir + "/../" + OSLibDir, Paths);
++ }
++
++ addPathIfExists(D, SysRoot + "/lib/" + MultiarchTriple, Paths);
++ addPathIfExists(D, SysRoot + "/lib/../" + OSLibDir, Paths);
++
++ addPathIfExists(D, SysRoot + "/usr/lib/" + MultiarchTriple, Paths);
++ addPathIfExists(D, SysRoot + "/usr/lib/../" + OSLibDir, Paths);
++
++ // Try walking via the GCC triple path in case of biarch or multiarch GCC
++ // installations with strange symlinks.
++ if (GCCInstallation.isValid()) {
++ addPathIfExists(D,
++ SysRoot + "/usr/lib/" + GCCInstallation.getTriple().str() +
++ "/../../" + OSLibDir,
++ Paths);
++
++ // Add the 'other' biarch variant path
++ Multilib BiarchSibling;
++ if (GCCInstallation.getBiarchSibling(BiarchSibling)) {
++ addPathIfExists(D, GCCInstallation.getInstallPath() +
++ BiarchSibling.gccSuffix(),
++ Paths);
++ }
++
++ // See comments above on the multilib variant for details of why this is
++ // included even from outside the sysroot.
++ const std::string &LibPath = GCCInstallation.getParentLibPath();
++ const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
++ const Multilib &Multilib = GCCInstallation.getMultilib();
++ addPathIfExists(D, LibPath + "/../" + GCCTriple.str() + "/lib" +
++ Multilib.osSuffix(),
++ Paths);
++
++ // See comments above on the multilib variant for details of why this is
++ // only included from within the sysroot.
++ if (StringRef(LibPath).startswith(SysRoot))
++ addPathIfExists(D, LibPath, Paths);
++ }
++
++ // Similar to the logic for GCC above, if we are currently running Clang
++ // inside of the requested system root, add its parent library path to those
++ // searched.
++ // FIXME: It's not clear whether we should use the driver's installed
++ // directory ('Dir' below) or the ResourceDir.
++ if (StringRef(D.Dir).startswith(SysRoot))
++ addPathIfExists(D, D.Dir + "/../lib", Paths);
++
++ addPathIfExists(D, SysRoot + "/lib", Paths);
++ addPathIfExists(D, SysRoot + "/usr/lib", Paths);
++}
++
++bool kFreeBSD::HasNativeLLVMSupport() const { return true; }
++
++Tool *kFreeBSD::buildLinker() const { return new tools::gnutools::Linker(*this); }
++
++Tool *kFreeBSD::buildAssembler() const {
++ return new tools::gnutools::Assembler(*this);
++}
++
++std::string kFreeBSD::computeSysRoot() const {
++ if (!getDriver().SysRoot.empty())
++ return getDriver().SysRoot;
++
++ return std::string();
++}
++
++std::string kFreeBSD::getDynamicLinker(const ArgList &Args) const {
++ const llvm::Triple::ArchType Arch = getArch();
++
++ if (Arch == llvm::Triple::x86_64)
++ return "/lib/ld-kfreebsd-x86-64.so.1";
++
++ if (Arch == llvm::Triple::x86)
++ return "/lib/ld.so.1";
++
++ llvm_unreachable("unsupported architecture");
++}
++
++void kFreeBSD::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
++ ArgStringList &CC1Args) const {
++ const Driver &D = getDriver();
++ std::string SysRoot = computeSysRoot();
++
++ if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
++ return;
++
++ if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
++ addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include");
++
++ if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
++ SmallString<128> P(D.ResourceDir);
++ llvm::sys::path::append(P, "include");
++ addSystemInclude(DriverArgs, CC1Args, P);
++ }
++
++ if (DriverArgs.hasArg(options::OPT_nostdlibinc))
++ return;
++
++ // Check for configure-time C include directories.
++ StringRef CIncludeDirs(C_INCLUDE_DIRS);
++ if (CIncludeDirs != "") {
++ SmallVector<StringRef, 5> dirs;
++ CIncludeDirs.split(dirs, ":");
++ for (StringRef dir : dirs) {
++ StringRef Prefix =
++ llvm::sys::path::is_absolute(dir) ? StringRef(SysRoot) : "";
++ addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir);
++ }
++ // addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include");
++ return;
++ }
++
++ // Lacking those, try to detect the correct set of system includes for the
++ // target triple.
++
++ // Add include directories specific to the selected multilib set and multilib.
++ if (GCCInstallation.isValid()) {
++ const auto &Callback = Multilibs.includeDirsCallback();
++ if (Callback) {
++ for (const auto &Path : Callback(GCCInstallation.getMultilib()))
++ addExternCSystemIncludeIfExists(
++ DriverArgs, CC1Args, GCCInstallation.getInstallPath() + Path);
++ }
++ }
++
++ // Implement generic Debian multiarch support.
++ const StringRef X86_64MultiarchIncludeDirs[] = {
++ "/usr/include/x86_64-kfreebsd-gnu"};
++
++ // CHECK
++ const StringRef X86MultiarchIncludeDirs[] = {
++ "/usr/include/i386-kfreebsd-gnu"};
++
++ ArrayRef<StringRef> MultiarchIncludeDirs;
++ switch (getTriple().getArch()) {
++ case llvm::Triple::x86:
++ MultiarchIncludeDirs = X86MultiarchIncludeDirs;
++ break;
++ case llvm::Triple::x86_64:
++ MultiarchIncludeDirs = X86_64MultiarchIncludeDirs;
++ break;
++ default:
++ break;
++ }
++
++ for (StringRef Dir : MultiarchIncludeDirs) {
++ if (D.getVFS().exists(SysRoot + Dir)) {
++ addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + Dir);
++ break;
++ }
++ }
++
++ // Add an include of '/include' directly. This isn't provided by default by
++ // system GCCs, but is often used with cross-compiling GCCs, and harmless to
++ // add even when Clang is acting as-if it were a system compiler.
++ addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/include");
++
++ addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include");
++}
++
++static std::string DetectLibcxxIncludePath(StringRef base) {
++ std::error_code EC;
++ int MaxVersion = 0;
++ std::string MaxVersionString = "";
++ for (llvm::sys::fs::directory_iterator LI(base, EC), LE; !EC && LI != LE;
++ LI = LI.increment(EC)) {
++ StringRef VersionText = llvm::sys::path::filename(LI->path());
++ int Version;
++ if (VersionText[0] == 'v' &&
++ !VersionText.slice(1, StringRef::npos).getAsInteger(10, Version)) {
++ if (Version > MaxVersion) {
++ MaxVersion = Version;
++ MaxVersionString = VersionText;
++ }
++ }
++ }
++ return MaxVersion ? (base + "/" + MaxVersionString).str() : "";
++}
++
++void kFreeBSD::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
++ llvm::opt::ArgStringList &CC1Args) const {
++ const std::string& SysRoot = computeSysRoot();
++ const std::string LibCXXIncludePathCandidates[] = {
++ DetectLibcxxIncludePath(getDriver().ResourceDir + "/include/c++"),
++ DetectLibcxxIncludePath(getDriver().Dir + "/../include/c++"),
++ // If this is a development, non-installed, clang, libcxx will
++ // not be found at ../include/c++ but it likely to be found at
++ // one of the following two locations:
++ DetectLibcxxIncludePath(SysRoot + "/usr/local/include/c++"),
++ DetectLibcxxIncludePath(SysRoot + "/usr/include/c++") };
++ for (const auto &IncludePath : LibCXXIncludePathCandidates) {
++ if (IncludePath.empty() || !getVFS().exists(IncludePath))
++ continue;
++ // Use the first candidate that exists.
++ addSystemInclude(DriverArgs, CC1Args, IncludePath);
++ return;
++ }
++}
++
++void kFreeBSD::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
++ llvm::opt::ArgStringList &CC1Args) const {
++ // We need a detected GCC installation on kFreeBSD to provide libstdc++'s
++ // headers.
++ if (!GCCInstallation.isValid())
++ return;
++
++ // By default, look for the C++ headers in an include directory adjacent to
++ // the lib directory of the GCC installation. Note that this is expect to be
++ // equivalent to '/usr/include/c++/X.Y' in almost all cases.
++ StringRef LibDir = GCCInstallation.getParentLibPath();
++ StringRef InstallDir = GCCInstallation.getInstallPath();
++ StringRef TripleStr = GCCInstallation.getTriple().str();
++ const Multilib &Multilib = GCCInstallation.getMultilib();
++ const std::string GCCMultiarchTriple = getMultiarchTriple(
++ getDriver(), GCCInstallation.getTriple(), getDriver().SysRoot);
++ const std::string TargetMultiarchTriple =
++ getMultiarchTriple(getDriver(), getTriple(), getDriver().SysRoot);
++ const GCCVersion &Version = GCCInstallation.getVersion();
++
++ // The primary search for libstdc++ supports multiarch variants.
++ if (addLibStdCXXIncludePaths(LibDir.str() + "/../include",
++ "/c++/" + Version.Text, TripleStr,
++ GCCMultiarchTriple, TargetMultiarchTriple,
++ Multilib.includeSuffix(), DriverArgs, CC1Args))
++ return;
++
++ // Otherwise, fall back on a bunch of options which don't use multiarch
++ // layouts for simplicity.
++ const std::string LibStdCXXIncludePathCandidates[] = {
++ // Gentoo is weird and places its headers inside the GCC install,
++ // so if the first attempt to find the headers fails, try these patterns.
++ InstallDir.str() + "/include/g++-v" + Version.Text,
++ InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
++ Version.MinorStr,
++ InstallDir.str() + "/include/g++-v" + Version.MajorStr,
++ // Android standalone toolchain has C++ headers in yet another place.
++ LibDir.str() + "/../" + TripleStr.str() + "/include/c++/" + Version.Text,
++ // Freescale SDK C++ headers are directly in <sysroot>/usr/include/c++,
++ // without a subdirectory corresponding to the gcc version.
++ LibDir.str() + "/../include/c++",
++ };
++
++ for (const auto &IncludePath : LibStdCXXIncludePathCandidates) {
++ if (addLibStdCXXIncludePaths(IncludePath, /*Suffix*/ "", TripleStr,
++ /*GCCMultiarchTriple*/ "",
++ /*TargetMultiarchTriple*/ "",
++ Multilib.includeSuffix(), DriverArgs, CC1Args))
++ break;
++ }
++}
++
++/* FIXME:
++/home/srs/DEBs/llvm-toolchain-7/llvm-toolchain-7-7.0.1~+rc2-7/clang/lib/Driver/ToolChains/KFreeBSD.cpp:431:15: error: no declaration matches ‘clang::SanitizerMask clang::driver::toolchains::kFreeBSD::getSupportedSanitizers() const’
++ SanitizerMask kFreeBSD::getSupportedSanitizers() const {
++*/
++SanitizerMask kFreeBSD::getSupportedSanitizers() const {
++ const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
++ const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
++ SanitizerMask Res = ToolChain::getSupportedSanitizers();
++ // FIXME: Add here!!
++ if (IsX86_64) {
++ Res |= SanitizerKind::DataFlow;
++ Res |= SanitizerKind::Leak;
++ Res |= SanitizerKind::Thread;
++ Res |= SanitizerKind::Efficiency;
++ Res |= SanitizerKind::Scudo;
++ Res |= SanitizerKind::HWAddress;
++ Res |= SanitizerKind::KernelHWAddress;
++ }
++ if (IsX86 || IsX86_64)
++ Res |= SanitizerKind::Function;
++
++ return Res;
++}
++
+Index: llvm-toolchain-8_8~+rc2/clang/lib/Driver/ToolChains/KFreeBSD.h
+===================================================================
+--- /dev/null
++++ llvm-toolchain-8_8~+rc2/clang/lib/Driver/ToolChains/KFreeBSD.h
+@@ -0,0 +1,54 @@
++//===--- KFreeBSD.h - kFreeBSD ToolChain Implementations ----------*- C++ -*-===//
++//
++// The LLVM Compiler Infrastructure
++//
++// This file is distributed under the University of Illinois Open Source
++// License. See LICENSE.TXT for details.
++//
++//===----------------------------------------------------------------------===//
++
++#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_KFreeBSD_H
++#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_KFreeBSD_H
++
++#include "Gnu.h"
++#include "clang/Driver/ToolChain.h"
++
++namespace clang {
++namespace driver {
++namespace toolchains {
++
++class LLVM_LIBRARY_VISIBILITY kFreeBSD : public Generic_ELF {
++public:
++ kFreeBSD(const Driver &D, const llvm::Triple &Triple,
++ const llvm::opt::ArgList &Args);
++
++ bool HasNativeLLVMSupport() const override;
++
++ void
++ AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
++ llvm::opt::ArgStringList &CC1Args) const override;
++ void addLibCxxIncludePaths(
++ const llvm::opt::ArgList &DriverArgs,
++ llvm::opt::ArgStringList &CC1Args) const override;
++ void addLibStdCxxIncludePaths(
++ const llvm::opt::ArgList &DriverArgs,
++ llvm::opt::ArgStringList &CC1Args) const override;
++
++ SanitizerMask getSupportedSanitizers() const override;
++
++ virtual std::string computeSysRoot() const;
++
++ virtual std::string getDynamicLinker(const llvm::opt::ArgList &Args) const;
++
++ std::vector<std::string> ExtraOpts;
++
++protected:
++ Tool *buildAssembler() const override;
++ Tool *buildLinker() const override;
++};
++
++} // end namespace toolchains
++} // end namespace driver
++} // end namespace clang
++
++#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_KFreeBSD_H