diff options
Diffstat (limited to 'lib/Driver/ToolChains.h')
| -rw-r--r-- | lib/Driver/ToolChains.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h index dfcb253acd88..0e4d67c5d149 100644 --- a/lib/Driver/ToolChains.h +++ b/lib/Driver/ToolChains.h @@ -372,6 +372,86 @@ public: }; class LLVM_LIBRARY_VISIBILITY Linux : public Generic_ELF { + /// \brief Struct to store and manipulate GCC versions. + /// + /// We rely on assumptions about the form and structure of GCC version + /// numbers: they consist of at most three '.'-separated components, and each + /// component is a non-negative integer except for the last component. For + /// the last component we are very flexible in order to tolerate release + /// candidates or 'x' wildcards. + /// + /// Note that the ordering established among GCCVersions is based on the + /// preferred version string to use. For example we prefer versions without + /// a hard-coded patch number to those with a hard coded patch number. + /// + /// Currently this doesn't provide any logic for textual suffixes to patches + /// in the way that (for example) Debian's version format does. If that ever + /// becomes necessary, it can be added. + struct GCCVersion { + /// \brief The unparsed text of the version. + std::string Text; + + /// \brief The parsed major, minor, and patch numbers. + int Major, Minor, Patch; + + /// \brief Any textual suffix on the patch number. + std::string PatchSuffix; + + static GCCVersion Parse(StringRef VersionText); + bool operator<(const GCCVersion &RHS) const; + bool operator>(const GCCVersion &RHS) const { return RHS < *this; } + bool operator<=(const GCCVersion &RHS) const { return !(*this > RHS); } + bool operator>=(const GCCVersion &RHS) const { return !(*this < RHS); } + }; + + + /// \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; + + GCCVersion Version; + + 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. + StringRef getTriple() const { return GccTriple; } + + /// \brief Get the detected GCC installation path. + StringRef getInstallPath() const { return GccInstallPath; } + + /// \brief Get the detected GCC parent lib path. + StringRef getParentLibPath() const { return GccParentLibPath; } + + /// \brief Get the detected GCC version string. + StringRef getVersion() const { return Version.Text; } + + private: + static void CollectLibDirsAndTriples(llvm::Triple::ArchType HostArch, + SmallVectorImpl<StringRef> &LibDirs, + SmallVectorImpl<StringRef> &Triples); + + void ScanLibDirForGCCTriple(llvm::Triple::ArchType HostArch, + const std::string &LibDir, + StringRef CandidateTriple); + }; + + GCCInstallationDetector GCCInstallation; + public: Linux(const HostInfo &Host, const llvm::Triple& Triple); @@ -380,6 +460,11 @@ public: virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, const ActionList &Inputs) const; + virtual void AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const; + virtual void AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const; + std::string Linker; std::vector<std::string> ExtraOpts; }; @@ -417,6 +502,12 @@ public: virtual bool IsUnwindTablesDefault() const; virtual const char *GetDefaultRelocationModel() const; virtual const char *GetForcedPicModel() const; + + virtual void AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const; + virtual void AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const; + }; } // end namespace toolchains |