Move the GCC installation detection helper a member of the Linux
toolchain instead of merely using it in the constructor. This will allow us to query it when building include paths as well as the file search paths built in the constructor. I've lifted as little of it as I could into the header file. Eventually this will likely sink down into some of the Generic toolchains and be used on more platforms, but I'm starting on Linux so I can work out all the APIs needed there, where it is easiest to test and we have the most pressing need. llvm-svn: 143838
This commit is contained in:
Chandler Carruth
parent
a95f344b3e
commit
14dd5ffcbf
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@ -1527,253 +1527,221 @@ static bool PathExists(StringRef Path) {
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return false;
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return false;
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}
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}
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namespace {
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/// \brief Struct to store and manipulate GCC versions.
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/// \brief This is a class to find a viable GCC installation for Clang to use.
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///
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///
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/// This class tries to find a GCC installation on the system, and report
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/// We rely on assumptions about the form and structure of GCC version
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/// information about it. It starts from the host information provided to the
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/// numbers: they consist of at most three '.'-separated components, and each
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/// Driver, and has logic for fuzzing that where appropriate.
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/// component is a non-negative integer.
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class GCCInstallationDetector {
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struct Linux::GCCVersion {
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/// \brief Struct to store and manipulate GCC versions.
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unsigned Major, Minor, Patch;
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///
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/// We rely on assumptions about the form and structure of GCC version
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/// numbers: they consist of at most three '.'-separated components, and each
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/// component is a non-negative integer.
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struct GCCVersion {
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unsigned Major, Minor, Patch;
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static GCCVersion Parse(StringRef VersionText) {
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static GCCVersion Parse(StringRef VersionText) {
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const GCCVersion BadVersion = {0, 0, 0};
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const GCCVersion BadVersion = {0, 0, 0};
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std::pair<StringRef, StringRef> First = VersionText.split('.');
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std::pair<StringRef, StringRef> First = VersionText.split('.');
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std::pair<StringRef, StringRef> Second = First.second.split('.');
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std::pair<StringRef, StringRef> Second = First.second.split('.');
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GCCVersion GoodVersion = {0, 0, 0};
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GCCVersion GoodVersion = {0, 0, 0};
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if (First.first.getAsInteger(10, GoodVersion.Major))
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if (First.first.getAsInteger(10, GoodVersion.Major))
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return BadVersion;
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return BadVersion;
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if (Second.first.getAsInteger(10, GoodVersion.Minor))
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if (Second.first.getAsInteger(10, GoodVersion.Minor))
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return BadVersion;
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return BadVersion;
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// We accept a number, or a string for the patch version, in case there
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// We accept a number, or a string for the patch version, in case there
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// is a strang suffix, or other mangling: '4.1.x', '4.1.2-rc3'. When it
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// is a strang suffix, or other mangling: '4.1.x', '4.1.2-rc3'. When it
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// isn't a number, we just use '0' as the number but accept it.
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// isn't a number, we just use '0' as the number but accept it.
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if (Second.first.getAsInteger(10, GoodVersion.Patch))
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if (Second.first.getAsInteger(10, GoodVersion.Patch))
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GoodVersion.Patch = 0;
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GoodVersion.Patch = 0;
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return GoodVersion;
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return GoodVersion;
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}
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bool operator<(const GCCVersion &RHS) const {
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if (Major < RHS.Major) return true;
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if (Major > RHS.Major) return false;
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if (Minor < RHS.Minor) return true;
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if (Minor > RHS.Minor) return false;
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return Patch < RHS.Patch;
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}
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bool operator>(const GCCVersion &RHS) const { return RHS < *this; }
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bool operator<=(const GCCVersion &RHS) const { return !(*this > RHS); }
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bool operator>=(const GCCVersion &RHS) const { return !(*this < RHS); }
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};
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bool IsValid;
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std::string GccTriple;
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// FIXME: These might be better as path objects.
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std::string GccInstallPath;
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std::string GccParentLibPath;
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llvm::SmallString<128> CxxIncludeRoot;
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public:
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/// \brief Construct a GCCInstallationDetector from the driver.
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///
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/// This performs all of the autodetection and sets up the various paths.
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/// Once constructed, a GCCInstallation is esentially immutable.
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GCCInstallationDetector(const Driver &D)
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: IsValid(false),
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GccTriple(D.DefaultHostTriple),
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CxxIncludeRoot(CXX_INCLUDE_ROOT) {
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// FIXME: Using CXX_INCLUDE_ROOT is here is a bit of a hack, but
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// avoids adding yet another option to configure/cmake.
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// It would probably be cleaner to break it in two variables
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// CXX_GCC_ROOT with just /foo/bar
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// CXX_GCC_VER with 4.5.2
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// Then we would have
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// CXX_INCLUDE_ROOT = CXX_GCC_ROOT/include/c++/CXX_GCC_VER
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// and this function would return
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// CXX_GCC_ROOT/lib/gcc/CXX_INCLUDE_ARCH/CXX_GCC_VER
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if (CxxIncludeRoot != "") {
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// This is of the form /foo/bar/include/c++/4.5.2/
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if (CxxIncludeRoot.back() == '/')
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llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the /
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StringRef Version = llvm::sys::path::filename(CxxIncludeRoot);
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llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the version
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llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the c++
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llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the include
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GccInstallPath = CxxIncludeRoot.str();
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GccInstallPath.append("/lib/gcc/");
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GccInstallPath.append(CXX_INCLUDE_ARCH);
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GccInstallPath.append("/");
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GccInstallPath.append(Version);
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GccParentLibPath = GccInstallPath + "/../../..";
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IsValid = true;
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return;
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}
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llvm::Triple::ArchType HostArch = llvm::Triple(GccTriple).getArch();
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// The library directories which may contain GCC installations.
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SmallVector<StringRef, 4> CandidateLibDirs;
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// The compatible GCC triples for this particular architecture.
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SmallVector<StringRef, 10> CandidateTriples;
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CollectLibDirsAndTriples(HostArch, CandidateLibDirs, CandidateTriples);
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// Always include the default host triple as the final fallback if no
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// specific triple is detected.
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CandidateTriples.push_back(D.DefaultHostTriple);
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// Compute the set of prefixes for our search.
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SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(),
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D.PrefixDirs.end());
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Prefixes.push_back(D.SysRoot);
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Prefixes.push_back(D.SysRoot + "/usr");
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Prefixes.push_back(D.InstalledDir + "/..");
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// Loop over the various components which exist and select the best GCC
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// installation available. GCC installs are ranked by version number.
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GCCVersion BestVersion = {0, 0, 0};
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for (unsigned i = 0, ie = Prefixes.size(); i < ie; ++i) {
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if (!PathExists(Prefixes[i]))
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continue;
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for (unsigned j = 0, je = CandidateLibDirs.size(); j < je; ++j) {
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const std::string LibDir = Prefixes[i] + CandidateLibDirs[j].str();
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if (!PathExists(LibDir))
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continue;
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for (unsigned k = 0, ke = CandidateTriples.size(); k < ke; ++k)
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ScanLibDirForGCCTriple(LibDir, CandidateTriples[k], BestVersion);
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}
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}
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}
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}
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/// \brief Check whether we detected a valid GCC install.
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bool operator<(const GCCVersion &RHS) const {
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bool isValid() const { return IsValid; }
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if (Major < RHS.Major) return true;
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if (Major > RHS.Major) return false;
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/// \brief Get the GCC triple for the detected install.
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if (Minor < RHS.Minor) return true;
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const std::string &getTriple() const { return GccTriple; }
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if (Minor > RHS.Minor) return false;
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return Patch < RHS.Patch;
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/// \brief Get the detected GCC installation path.
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const std::string &getInstallPath() const { return GccInstallPath; }
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/// \brief Get the detected GCC parent lib path.
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const std::string &getParentLibPath() const { return GccParentLibPath; }
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private:
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static void CollectLibDirsAndTriples(llvm::Triple::ArchType HostArch,
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SmallVectorImpl<StringRef> &LibDirs,
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SmallVectorImpl<StringRef> &Triples) {
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if (HostArch == llvm::Triple::arm || HostArch == llvm::Triple::thumb) {
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static const char *const ARMLibDirs[] = { "/lib" };
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static const char *const ARMTriples[] = { "arm-linux-gnueabi" };
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LibDirs.append(ARMLibDirs, ARMLibDirs + llvm::array_lengthof(ARMLibDirs));
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Triples.append(ARMTriples, ARMTriples + llvm::array_lengthof(ARMTriples));
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} else if (HostArch == llvm::Triple::x86_64) {
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static const char *const X86_64LibDirs[] = { "/lib64", "/lib" };
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static const char *const X86_64Triples[] = {
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"x86_64-linux-gnu",
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"x86_64-unknown-linux-gnu",
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"x86_64-pc-linux-gnu",
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"x86_64-redhat-linux6E",
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"x86_64-redhat-linux",
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"x86_64-suse-linux",
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"x86_64-manbo-linux-gnu",
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"x86_64-linux-gnu",
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"x86_64-slackware-linux"
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};
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LibDirs.append(X86_64LibDirs,
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X86_64LibDirs + llvm::array_lengthof(X86_64LibDirs));
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Triples.append(X86_64Triples,
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X86_64Triples + llvm::array_lengthof(X86_64Triples));
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} else if (HostArch == llvm::Triple::x86) {
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static const char *const X86LibDirs[] = { "/lib32", "/lib" };
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static const char *const X86Triples[] = {
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"i686-linux-gnu",
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"i386-linux-gnu",
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"i686-pc-linux-gnu",
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"i486-linux-gnu",
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"i686-redhat-linux",
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"i386-redhat-linux",
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"i586-suse-linux",
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"i486-slackware-linux"
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};
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LibDirs.append(X86LibDirs, X86LibDirs + llvm::array_lengthof(X86LibDirs));
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Triples.append(X86Triples, X86Triples + llvm::array_lengthof(X86Triples));
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} else if (HostArch == llvm::Triple::ppc) {
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static const char *const PPCLibDirs[] = { "/lib32", "/lib" };
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static const char *const PPCTriples[] = {
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"powerpc-linux-gnu",
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"powerpc-unknown-linux-gnu"
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};
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LibDirs.append(PPCLibDirs, PPCLibDirs + llvm::array_lengthof(PPCLibDirs));
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Triples.append(PPCTriples, PPCTriples + llvm::array_lengthof(PPCTriples));
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} else if (HostArch == llvm::Triple::ppc64) {
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static const char *const PPC64LibDirs[] = { "/lib64", "/lib" };
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static const char *const PPC64Triples[] = {
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"powerpc64-unknown-linux-gnu"
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};
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LibDirs.append(PPC64LibDirs,
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PPC64LibDirs + llvm::array_lengthof(PPC64LibDirs));
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Triples.append(PPC64Triples,
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PPC64Triples + llvm::array_lengthof(PPC64Triples));
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}
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}
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void ScanLibDirForGCCTriple(const std::string &LibDir,
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StringRef CandidateTriple,
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GCCVersion &BestVersion) {
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// There are various different suffixes involving the triple we
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// check for. We also record what is necessary to walk from each back
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// up to the lib directory.
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const std::string Suffixes[] = {
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"/gcc/" + CandidateTriple.str(),
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"/" + CandidateTriple.str() + "/gcc/" + CandidateTriple.str(),
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// Ubuntu has a strange mis-matched pair of triples that this happens to
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// match.
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// FIXME: It may be worthwhile to generalize this and look for a second
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// triple.
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"/" + CandidateTriple.str() + "/gcc/i686-linux-gnu"
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};
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const std::string InstallSuffixes[] = {
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"/../../..",
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"/../../../..",
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"/../../../.."
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};
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// Only look at the final, weird Ubuntu suffix for i386-linux-gnu.
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const unsigned NumSuffixes = (llvm::array_lengthof(Suffixes) -
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(CandidateTriple != "i386-linux-gnu"));
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for (unsigned i = 0; i < NumSuffixes; ++i) {
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StringRef Suffix = Suffixes[i];
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llvm::error_code EC;
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for (llvm::sys::fs::directory_iterator LI(LibDir + Suffix, EC), LE;
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!EC && LI != LE; LI = LI.increment(EC)) {
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StringRef VersionText = llvm::sys::path::filename(LI->path());
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GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
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static const GCCVersion MinVersion = { 4, 1, 1 };
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if (CandidateVersion < MinVersion)
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continue;
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if (CandidateVersion <= BestVersion)
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continue;
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if (!PathExists(LI->path() + "/crtbegin.o"))
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continue;
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BestVersion = CandidateVersion;
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GccTriple = CandidateTriple.str();
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// FIXME: We hack together the directory name here instead of
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// using LI to ensure stable path separators across Windows and
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// Linux.
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GccInstallPath = LibDir + Suffixes[i] + "/" + VersionText.str();
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GccParentLibPath = GccInstallPath + InstallSuffixes[i];
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IsValid = true;
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}
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}
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}
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}
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bool operator>(const GCCVersion &RHS) const { return RHS < *this; }
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bool operator<=(const GCCVersion &RHS) const { return !(*this > RHS); }
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bool operator>=(const GCCVersion &RHS) const { return !(*this < RHS); }
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};
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};
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/// \brief Construct a GCCInstallationDetector from the driver.
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///
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/// This performs all of the autodetection and sets up the various paths.
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/// Once constructed, a GCCInstallation is esentially immutable.
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Linux::GCCInstallationDetector::GCCInstallationDetector(const Driver &D)
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: IsValid(false),
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GccTriple(D.DefaultHostTriple),
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CxxIncludeRoot(CXX_INCLUDE_ROOT) {
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// FIXME: Using CXX_INCLUDE_ROOT is here is a bit of a hack, but
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|
// avoids adding yet another option to configure/cmake.
|
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|
// It would probably be cleaner to break it in two variables
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// CXX_GCC_ROOT with just /foo/bar
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// CXX_GCC_VER with 4.5.2
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// Then we would have
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// CXX_INCLUDE_ROOT = CXX_GCC_ROOT/include/c++/CXX_GCC_VER
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// and this function would return
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// CXX_GCC_ROOT/lib/gcc/CXX_INCLUDE_ARCH/CXX_GCC_VER
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|
if (CxxIncludeRoot != "") {
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// This is of the form /foo/bar/include/c++/4.5.2/
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if (CxxIncludeRoot.back() == '/')
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llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the /
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StringRef Version = llvm::sys::path::filename(CxxIncludeRoot);
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llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the version
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llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the c++
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llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the include
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GccInstallPath = CxxIncludeRoot.str();
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GccInstallPath.append("/lib/gcc/");
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GccInstallPath.append(CXX_INCLUDE_ARCH);
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GccInstallPath.append("/");
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GccInstallPath.append(Version);
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GccParentLibPath = GccInstallPath + "/../../..";
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IsValid = true;
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return;
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}
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llvm::Triple::ArchType HostArch = llvm::Triple(GccTriple).getArch();
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// The library directories which may contain GCC installations.
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|
SmallVector<StringRef, 4> CandidateLibDirs;
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|
// The compatible GCC triples for this particular architecture.
|
||||||
|
SmallVector<StringRef, 10> CandidateTriples;
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||||||
|
CollectLibDirsAndTriples(HostArch, CandidateLibDirs, CandidateTriples);
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|
|
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|
// Always include the default host triple as the final fallback if no
|
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|
// specific triple is detected.
|
||||||
|
CandidateTriples.push_back(D.DefaultHostTriple);
|
||||||
|
|
||||||
|
// Compute the set of prefixes for our search.
|
||||||
|
SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(),
|
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D.PrefixDirs.end());
|
||||||
|
Prefixes.push_back(D.SysRoot);
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|
Prefixes.push_back(D.SysRoot + "/usr");
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Prefixes.push_back(D.InstalledDir + "/..");
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||||||
|
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||||||
|
// Loop over the various components which exist and select the best GCC
|
||||||
|
// installation available. GCC installs are ranked by version number.
|
||||||
|
GCCVersion BestVersion = {0, 0, 0};
|
||||||
|
for (unsigned i = 0, ie = Prefixes.size(); i < ie; ++i) {
|
||||||
|
if (!PathExists(Prefixes[i]))
|
||||||
|
continue;
|
||||||
|
for (unsigned j = 0, je = CandidateLibDirs.size(); j < je; ++j) {
|
||||||
|
const std::string LibDir = Prefixes[i] + CandidateLibDirs[j].str();
|
||||||
|
if (!PathExists(LibDir))
|
||||||
|
continue;
|
||||||
|
for (unsigned k = 0, ke = CandidateTriples.size(); k < ke; ++k)
|
||||||
|
ScanLibDirForGCCTriple(LibDir, CandidateTriples[k], BestVersion);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/*static*/ void Linux::GCCInstallationDetector::CollectLibDirsAndTriples(
|
||||||
|
llvm::Triple::ArchType HostArch, SmallVectorImpl<StringRef> &LibDirs,
|
||||||
|
SmallVectorImpl<StringRef> &Triples) {
|
||||||
|
if (HostArch == llvm::Triple::arm || HostArch == llvm::Triple::thumb) {
|
||||||
|
static const char *const ARMLibDirs[] = { "/lib" };
|
||||||
|
static const char *const ARMTriples[] = { "arm-linux-gnueabi" };
|
||||||
|
LibDirs.append(ARMLibDirs, ARMLibDirs + llvm::array_lengthof(ARMLibDirs));
|
||||||
|
Triples.append(ARMTriples, ARMTriples + llvm::array_lengthof(ARMTriples));
|
||||||
|
} else if (HostArch == llvm::Triple::x86_64) {
|
||||||
|
static const char *const X86_64LibDirs[] = { "/lib64", "/lib" };
|
||||||
|
static const char *const X86_64Triples[] = {
|
||||||
|
"x86_64-linux-gnu",
|
||||||
|
"x86_64-unknown-linux-gnu",
|
||||||
|
"x86_64-pc-linux-gnu",
|
||||||
|
"x86_64-redhat-linux6E",
|
||||||
|
"x86_64-redhat-linux",
|
||||||
|
"x86_64-suse-linux",
|
||||||
|
"x86_64-manbo-linux-gnu",
|
||||||
|
"x86_64-linux-gnu",
|
||||||
|
"x86_64-slackware-linux"
|
||||||
|
};
|
||||||
|
LibDirs.append(X86_64LibDirs,
|
||||||
|
X86_64LibDirs + llvm::array_lengthof(X86_64LibDirs));
|
||||||
|
Triples.append(X86_64Triples,
|
||||||
|
X86_64Triples + llvm::array_lengthof(X86_64Triples));
|
||||||
|
} else if (HostArch == llvm::Triple::x86) {
|
||||||
|
static const char *const X86LibDirs[] = { "/lib32", "/lib" };
|
||||||
|
static const char *const X86Triples[] = {
|
||||||
|
"i686-linux-gnu",
|
||||||
|
"i386-linux-gnu",
|
||||||
|
"i686-pc-linux-gnu",
|
||||||
|
"i486-linux-gnu",
|
||||||
|
"i686-redhat-linux",
|
||||||
|
"i386-redhat-linux",
|
||||||
|
"i586-suse-linux",
|
||||||
|
"i486-slackware-linux"
|
||||||
|
};
|
||||||
|
LibDirs.append(X86LibDirs, X86LibDirs + llvm::array_lengthof(X86LibDirs));
|
||||||
|
Triples.append(X86Triples, X86Triples + llvm::array_lengthof(X86Triples));
|
||||||
|
} else if (HostArch == llvm::Triple::ppc) {
|
||||||
|
static const char *const PPCLibDirs[] = { "/lib32", "/lib" };
|
||||||
|
static const char *const PPCTriples[] = {
|
||||||
|
"powerpc-linux-gnu",
|
||||||
|
"powerpc-unknown-linux-gnu"
|
||||||
|
};
|
||||||
|
LibDirs.append(PPCLibDirs, PPCLibDirs + llvm::array_lengthof(PPCLibDirs));
|
||||||
|
Triples.append(PPCTriples, PPCTriples + llvm::array_lengthof(PPCTriples));
|
||||||
|
} else if (HostArch == llvm::Triple::ppc64) {
|
||||||
|
static const char *const PPC64LibDirs[] = { "/lib64", "/lib" };
|
||||||
|
static const char *const PPC64Triples[] = {
|
||||||
|
"powerpc64-unknown-linux-gnu"
|
||||||
|
};
|
||||||
|
LibDirs.append(PPC64LibDirs,
|
||||||
|
PPC64LibDirs + llvm::array_lengthof(PPC64LibDirs));
|
||||||
|
Triples.append(PPC64Triples,
|
||||||
|
PPC64Triples + llvm::array_lengthof(PPC64Triples));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void Linux::GCCInstallationDetector::ScanLibDirForGCCTriple(
|
||||||
|
const std::string &LibDir, StringRef CandidateTriple,
|
||||||
|
GCCVersion &BestVersion) {
|
||||||
|
// There are various different suffixes involving the triple we
|
||||||
|
// check for. We also record what is necessary to walk from each back
|
||||||
|
// up to the lib directory.
|
||||||
|
const std::string Suffixes[] = {
|
||||||
|
"/gcc/" + CandidateTriple.str(),
|
||||||
|
"/" + CandidateTriple.str() + "/gcc/" + CandidateTriple.str(),
|
||||||
|
|
||||||
|
// Ubuntu has a strange mis-matched pair of triples that this happens to
|
||||||
|
// match.
|
||||||
|
// FIXME: It may be worthwhile to generalize this and look for a second
|
||||||
|
// triple.
|
||||||
|
"/" + CandidateTriple.str() + "/gcc/i686-linux-gnu"
|
||||||
|
};
|
||||||
|
const std::string InstallSuffixes[] = {
|
||||||
|
"/../../..",
|
||||||
|
"/../../../..",
|
||||||
|
"/../../../.."
|
||||||
|
};
|
||||||
|
// Only look at the final, weird Ubuntu suffix for i386-linux-gnu.
|
||||||
|
const unsigned NumSuffixes = (llvm::array_lengthof(Suffixes) -
|
||||||
|
(CandidateTriple != "i386-linux-gnu"));
|
||||||
|
for (unsigned i = 0; i < NumSuffixes; ++i) {
|
||||||
|
StringRef Suffix = Suffixes[i];
|
||||||
|
llvm::error_code EC;
|
||||||
|
for (llvm::sys::fs::directory_iterator LI(LibDir + Suffix, EC), LE;
|
||||||
|
!EC && LI != LE; LI = LI.increment(EC)) {
|
||||||
|
StringRef VersionText = llvm::sys::path::filename(LI->path());
|
||||||
|
GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
|
||||||
|
static const GCCVersion MinVersion = { 4, 1, 1 };
|
||||||
|
if (CandidateVersion < MinVersion)
|
||||||
|
continue;
|
||||||
|
if (CandidateVersion <= BestVersion)
|
||||||
|
continue;
|
||||||
|
if (!PathExists(LI->path() + "/crtbegin.o"))
|
||||||
|
continue;
|
||||||
|
|
||||||
|
BestVersion = CandidateVersion;
|
||||||
|
GccTriple = CandidateTriple.str();
|
||||||
|
// FIXME: We hack together the directory name here instead of
|
||||||
|
// using LI to ensure stable path separators across Windows and
|
||||||
|
// Linux.
|
||||||
|
GccInstallPath = LibDir + Suffixes[i] + "/" + VersionText.str();
|
||||||
|
GccParentLibPath = GccInstallPath + InstallSuffixes[i];
|
||||||
|
IsValid = true;
|
||||||
|
}
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
static void addPathIfExists(const std::string &Path,
|
static void addPathIfExists(const std::string &Path,
|
||||||
|
|
@ -1811,11 +1779,10 @@ static std::string getMultiarchTriple(const llvm::Triple TargetTriple,
|
||||||
}
|
}
|
||||||
|
|
||||||
Linux::Linux(const HostInfo &Host, const llvm::Triple &Triple)
|
Linux::Linux(const HostInfo &Host, const llvm::Triple &Triple)
|
||||||
: Generic_ELF(Host, Triple) {
|
: Generic_ELF(Host, Triple), GCCInstallation(getDriver()) {
|
||||||
llvm::Triple::ArchType Arch =
|
llvm::Triple::ArchType Arch =
|
||||||
llvm::Triple(getDriver().DefaultHostTriple).getArch();
|
llvm::Triple(getDriver().DefaultHostTriple).getArch();
|
||||||
const std::string &SysRoot = getDriver().SysRoot;
|
const std::string &SysRoot = getDriver().SysRoot;
|
||||||
GCCInstallationDetector GCCInstallation(getDriver());
|
|
||||||
|
|
||||||
// OpenSuse stores the linker with the compiler, add that to the search
|
// OpenSuse stores the linker with the compiler, add that to the search
|
||||||
// path.
|
// path.
|
||||||
|
|
|
||||||
|
|
@ -372,6 +372,52 @@ public:
|
||||||
};
|
};
|
||||||
|
|
||||||
class LLVM_LIBRARY_VISIBILITY Linux : public Generic_ELF {
|
class LLVM_LIBRARY_VISIBILITY Linux : public Generic_ELF {
|
||||||
|
struct GCCVersion;
|
||||||
|
|
||||||
|
/// \brief This is a class to find a viable GCC installation for Clang to
|
||||||
|
/// use.
|
||||||
|
///
|
||||||
|
/// This class tries to find a GCC installation on the system, and report
|
||||||
|
/// information about it. It starts from the host information provided to the
|
||||||
|
/// Driver, and has logic for fuzzing that where appropriate.
|
||||||
|
class GCCInstallationDetector {
|
||||||
|
|
||||||
|
bool IsValid;
|
||||||
|
std::string GccTriple;
|
||||||
|
|
||||||
|
// FIXME: These might be better as path objects.
|
||||||
|
std::string GccInstallPath;
|
||||||
|
std::string GccParentLibPath;
|
||||||
|
|
||||||
|
llvm::SmallString<128> CxxIncludeRoot;
|
||||||
|
|
||||||
|
public:
|
||||||
|
GCCInstallationDetector(const Driver &D);
|
||||||
|
|
||||||
|
/// \brief Check whether we detected a valid GCC install.
|
||||||
|
bool isValid() const { return IsValid; }
|
||||||
|
|
||||||
|
/// \brief Get the GCC triple for the detected install.
|
||||||
|
const std::string &getTriple() const { return GccTriple; }
|
||||||
|
|
||||||
|
/// \brief Get the detected GCC installation path.
|
||||||
|
const std::string &getInstallPath() const { return GccInstallPath; }
|
||||||
|
|
||||||
|
/// \brief Get the detected GCC parent lib path.
|
||||||
|
const std::string &getParentLibPath() const { return GccParentLibPath; }
|
||||||
|
|
||||||
|
private:
|
||||||
|
static void CollectLibDirsAndTriples(llvm::Triple::ArchType HostArch,
|
||||||
|
SmallVectorImpl<StringRef> &LibDirs,
|
||||||
|
SmallVectorImpl<StringRef> &Triples);
|
||||||
|
|
||||||
|
void ScanLibDirForGCCTriple(const std::string &LibDir,
|
||||||
|
StringRef CandidateTriple,
|
||||||
|
GCCVersion &BestVersion);
|
||||||
|
};
|
||||||
|
|
||||||
|
GCCInstallationDetector GCCInstallation;
|
||||||
|
|
||||||
public:
|
public:
|
||||||
Linux(const HostInfo &Host, const llvm::Triple& Triple);
|
Linux(const HostInfo &Host, const llvm::Triple& Triple);
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue