diff options
Diffstat (limited to 'clang/lib/Driver/ToolChains.h')
| -rw-r--r-- | clang/lib/Driver/ToolChains.h | 596 |
1 files changed, 596 insertions, 0 deletions
diff --git a/clang/lib/Driver/ToolChains.h b/clang/lib/Driver/ToolChains.h new file mode 100644 index 0000000..eaa6be1 --- /dev/null +++ b/clang/lib/Driver/ToolChains.h @@ -0,0 +1,596 @@ +//===--- ToolChains.h - 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 CLANG_LIB_DRIVER_TOOLCHAINS_H_ +#define CLANG_LIB_DRIVER_TOOLCHAINS_H_ + +#include "clang/Driver/Action.h" +#include "clang/Driver/ToolChain.h" + +#include "clang/Basic/VersionTuple.h" +#include "llvm/ADT/DenseMap.h" +#include "llvm/Support/Compiler.h" + +#include "Tools.h" + +namespace clang { +namespace driver { +namespace toolchains { + +/// Generic_GCC - A tool chain using the 'gcc' command to perform +/// all subcommands; this relies on gcc translating the majority of +/// command line options. +class LLVM_LIBRARY_VISIBILITY Generic_GCC : public ToolChain { +protected: + /// \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; + llvm::Triple GCCTriple; + + // FIXME: These might be better as path objects. + std::string GCCInstallPath; + std::string GCCMultiarchSuffix; + std::string GCCParentLibPath; + + GCCVersion Version; + + public: + GCCInstallationDetector(const Driver &D, const llvm::Triple &TargetTriple, + const ArgList &Args); + + /// \brief Check whether we detected a valid GCC install. + bool isValid() const { return IsValid; } + + /// \brief Get the GCC triple for the detected install. + const llvm::Triple &getTriple() const { return GCCTriple; } + + /// \brief Get the detected GCC installation path. + StringRef getInstallPath() const { return GCCInstallPath; } + + /// \brief Get the detected GCC installation path suffix for multiarch GCCs. + StringRef getMultiarchSuffix() const { return GCCMultiarchSuffix; } + + /// \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( + const llvm::Triple &TargetTriple, + const llvm::Triple &MultiarchTriple, + SmallVectorImpl<StringRef> &LibDirs, + SmallVectorImpl<StringRef> &TripleAliases, + SmallVectorImpl<StringRef> &MultiarchLibDirs, + SmallVectorImpl<StringRef> &MultiarchTripleAliases); + + void ScanLibDirForGCCTriple(llvm::Triple::ArchType TargetArch, + const std::string &LibDir, + StringRef CandidateTriple, + bool NeedsMultiarchSuffix = false); + }; + + GCCInstallationDetector GCCInstallation; + + mutable llvm::DenseMap<unsigned, Tool*> Tools; + +public: + Generic_GCC(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + ~Generic_GCC(); + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; + + virtual bool IsUnwindTablesDefault() const; + virtual const char *GetDefaultRelocationModel() const; + virtual const char *GetForcedPicModel() const; + +protected: + /// \name ToolChain Implementation Helper Functions + /// @{ + + /// \brief Check whether the target triple's architecture is 64-bits. + bool isTarget64Bit() const { return getTriple().isArch64Bit(); } + + /// \brief Check whether the target triple's architecture is 32-bits. + bool isTarget32Bit() const { return getTriple().isArch32Bit(); } + + /// @} +}; + +class LLVM_LIBRARY_VISIBILITY Hexagon_TC : public ToolChain { +protected: + mutable llvm::DenseMap<unsigned, Tool*> Tools; + +public: + Hexagon_TC(const Driver &D, const llvm::Triple& Triple); + ~Hexagon_TC(); + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; + + virtual bool IsUnwindTablesDefault() const; + virtual const char *GetDefaultRelocationModel() const; + virtual const char *GetForcedPicModel() const; +}; + + /// Darwin - The base Darwin tool chain. +class LLVM_LIBRARY_VISIBILITY Darwin : public ToolChain { +public: + /// The host version. + unsigned DarwinVersion[3]; + +private: + mutable llvm::DenseMap<unsigned, Tool*> Tools; + + /// Whether the information on the target has been initialized. + // + // FIXME: This should be eliminated. What we want to do is make this part of + // the "default target for arguments" selection process, once we get out of + // the argument translation business. + mutable bool TargetInitialized; + + // FIXME: Remove this once there is a proper way to detect an ARC runtime + // for the simulator. + public: + mutable enum { + ARCSimulator_None, + ARCSimulator_HasARCRuntime, + ARCSimulator_NoARCRuntime + } ARCRuntimeForSimulator; + + mutable enum { + LibCXXSimulator_None, + LibCXXSimulator_NotAvailable, + LibCXXSimulator_Available + } LibCXXForSimulator; + +private: + /// Whether we are targeting iPhoneOS target. + mutable bool TargetIsIPhoneOS; + + /// Whether we are targeting the iPhoneOS simulator target. + mutable bool TargetIsIPhoneOSSimulator; + + /// The OS version we are targeting. + mutable VersionTuple TargetVersion; + + /// The default macosx-version-min of this tool chain; empty until + /// initialized. + std::string MacosxVersionMin; + + bool hasARCRuntime() const; + bool hasSubscriptingRuntime() const; + +private: + void AddDeploymentTarget(DerivedArgList &Args) const; + +public: + Darwin(const Driver &D, const llvm::Triple& Triple); + ~Darwin(); + + std::string ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const; + + /// @name Darwin Specific Toolchain API + /// { + + // FIXME: Eliminate these ...Target functions and derive separate tool chains + // for these targets and put version in constructor. + void setTarget(bool IsIPhoneOS, unsigned Major, unsigned Minor, + unsigned Micro, bool IsIOSSim) const { + assert((!IsIOSSim || IsIPhoneOS) && "Unexpected deployment target!"); + + // FIXME: For now, allow reinitialization as long as values don't + // change. This will go away when we move away from argument translation. + if (TargetInitialized && TargetIsIPhoneOS == IsIPhoneOS && + TargetIsIPhoneOSSimulator == IsIOSSim && + TargetVersion == VersionTuple(Major, Minor, Micro)) + return; + + assert(!TargetInitialized && "Target already initialized!"); + TargetInitialized = true; + TargetIsIPhoneOS = IsIPhoneOS; + TargetIsIPhoneOSSimulator = IsIOSSim; + TargetVersion = VersionTuple(Major, Minor, Micro); + } + + bool isTargetIPhoneOS() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetIsIPhoneOS; + } + + bool isTargetIOSSimulator() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetIsIPhoneOSSimulator; + } + + bool isTargetMacOS() const { + return !isTargetIOSSimulator() && + !isTargetIPhoneOS() && + ARCRuntimeForSimulator == ARCSimulator_None; + } + + bool isTargetInitialized() const { return TargetInitialized; } + + VersionTuple getTargetVersion() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetVersion; + } + + /// getDarwinArchName - Get the "Darwin" arch name for a particular compiler + /// invocation. For example, Darwin treats different ARM variations as + /// distinct architectures. + StringRef getDarwinArchName(const ArgList &Args) const; + + bool isIPhoneOSVersionLT(unsigned V0, unsigned V1=0, unsigned V2=0) const { + assert(isTargetIPhoneOS() && "Unexpected call for OS X target!"); + return TargetVersion < VersionTuple(V0, V1, V2); + } + + bool isMacosxVersionLT(unsigned V0, unsigned V1=0, unsigned V2=0) const { + assert(!isTargetIPhoneOS() && "Unexpected call for iPhoneOS target!"); + return TargetVersion < VersionTuple(V0, V1, V2); + } + + /// AddLinkSearchPathArgs - Add the linker search paths to \arg CmdArgs. + /// + /// \param Args - The input argument list. + /// \param CmdArgs [out] - The command argument list to append the paths + /// (prefixed by -L) to. + virtual void AddLinkSearchPathArgs(const ArgList &Args, + ArgStringList &CmdArgs) const = 0; + + /// AddLinkARCArgs - Add the linker arguments to link the ARC runtime library. + virtual void AddLinkARCArgs(const ArgList &Args, + ArgStringList &CmdArgs) const = 0; + + /// AddLinkRuntimeLibArgs - Add the linker arguments to link the compiler + /// runtime library. + virtual void AddLinkRuntimeLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const = 0; + + /// } + /// @name ToolChain Implementation + /// { + + virtual types::ID LookupTypeForExtension(const char *Ext) const; + + virtual bool HasNativeLLVMSupport() const; + + virtual void configureObjCRuntime(ObjCRuntime &runtime) const; + virtual bool hasBlocksRuntime() const; + + virtual DerivedArgList *TranslateArgs(const DerivedArgList &Args, + const char *BoundArch) const; + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; + + virtual bool IsBlocksDefault() const { + // Always allow blocks on Darwin; users interested in versioning are + // expected to use /usr/include/Blocks.h. + return true; + } + virtual bool IsIntegratedAssemblerDefault() const { +#ifdef DISABLE_DEFAULT_INTEGRATED_ASSEMBLER + return false; +#else + // Default integrated assembler to on for Darwin. + return true; +#endif + } + virtual bool IsStrictAliasingDefault() const { +#ifdef DISABLE_DEFAULT_STRICT_ALIASING + return false; +#else + return ToolChain::IsStrictAliasingDefault(); +#endif + } + + virtual bool IsObjCDefaultSynthPropertiesDefault() const { + return true; + } + + virtual bool IsObjCNonFragileABIDefault() const { + // Non-fragile ABI is default for everything but i386. + return getTriple().getArch() != llvm::Triple::x86; + } + virtual bool IsObjCLegacyDispatchDefault() const { + // This is only used with the non-fragile ABI. + + // Legacy dispatch is used everywhere except on x86_64. + return getTriple().getArch() != llvm::Triple::x86_64; + } + virtual bool UseObjCMixedDispatch() const { + // This is only used with the non-fragile ABI and non-legacy dispatch. + + // Mixed dispatch is used everywhere except OS X before 10.6. + return !(!isTargetIPhoneOS() && isMacosxVersionLT(10, 6)); + } + virtual bool IsUnwindTablesDefault() const; + virtual unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const { + // Stack protectors default to on for user code on 10.5, + // and for everything in 10.6 and beyond + return isTargetIPhoneOS() || + (!isMacosxVersionLT(10, 6) || + (!isMacosxVersionLT(10, 5) && !KernelOrKext)); + } + virtual RuntimeLibType GetDefaultRuntimeLibType() const { + return ToolChain::RLT_CompilerRT; + } + virtual const char *GetDefaultRelocationModel() const; + virtual const char *GetForcedPicModel() const; + + virtual bool SupportsProfiling() const; + + virtual bool SupportsObjCGC() const; + + virtual bool SupportsObjCARC() const; + + virtual bool UseDwarfDebugFlags() const; + + virtual bool UseSjLjExceptions() const; + + /// } +}; + +/// DarwinClang - The Darwin toolchain used by Clang. +class LLVM_LIBRARY_VISIBILITY DarwinClang : public Darwin { +private: + void AddGCCLibexecPath(unsigned darwinVersion); + +public: + DarwinClang(const Driver &D, const llvm::Triple& Triple); + + /// @name Darwin ToolChain Implementation + /// { + + virtual void AddLinkSearchPathArgs(const ArgList &Args, + ArgStringList &CmdArgs) const; + + virtual void AddLinkRuntimeLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const; + void AddLinkRuntimeLib(const ArgList &Args, ArgStringList &CmdArgs, + const char *DarwinStaticLib) const; + + virtual void AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const; + + virtual void AddCCKextLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const; + + virtual void AddLinkARCArgs(const ArgList &Args, + ArgStringList &CmdArgs) const; + /// } +}; + +/// Darwin_Generic_GCC - Generic Darwin tool chain using gcc. +class LLVM_LIBRARY_VISIBILITY Darwin_Generic_GCC : public Generic_GCC { +public: + Darwin_Generic_GCC(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) + : Generic_GCC(D, Triple, Args) {} + + std::string ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const; + + virtual const char *GetDefaultRelocationModel() const { return "pic"; } +}; + +class LLVM_LIBRARY_VISIBILITY Generic_ELF : public Generic_GCC { + virtual void anchor(); +public: + Generic_ELF(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) + : Generic_GCC(D, Triple, Args) {} + + virtual bool IsIntegratedAssemblerDefault() const { + // Default integrated assembler to on for x86. + return (getTriple().getArch() == llvm::Triple::x86 || + getTriple().getArch() == llvm::Triple::x86_64); + } +}; + +class LLVM_LIBRARY_VISIBILITY AuroraUX : public Generic_GCC { +public: + AuroraUX(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; +}; + +class LLVM_LIBRARY_VISIBILITY Solaris : public Generic_GCC { +public: + Solaris(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; + + virtual bool IsIntegratedAssemblerDefault() const { return true; } +}; + + +class LLVM_LIBRARY_VISIBILITY OpenBSD : public Generic_ELF { +public: + OpenBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + + virtual bool IsObjCNonFragileABIDefault() const { return true; } + virtual bool IsObjCLegacyDispatchDefault() const { + llvm::Triple::ArchType Arch = getTriple().getArch(); + if (Arch == llvm::Triple::arm || + Arch == llvm::Triple::x86 || + Arch == llvm::Triple::x86_64) + return false; + return true; + } + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; +}; + +class LLVM_LIBRARY_VISIBILITY FreeBSD : public Generic_ELF { +public: + FreeBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + + virtual bool IsObjCNonFragileABIDefault() const { return true; } + virtual bool IsObjCLegacyDispatchDefault() const { + llvm::Triple::ArchType Arch = getTriple().getArch(); + if (Arch == llvm::Triple::arm || + Arch == llvm::Triple::x86 || + Arch == llvm::Triple::x86_64) + return false; + return true; + } + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; +}; + +class LLVM_LIBRARY_VISIBILITY NetBSD : public Generic_ELF { +public: + NetBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + + virtual bool IsObjCNonFragileABIDefault() const { return true; } + virtual bool IsObjCLegacyDispatchDefault() const { + llvm::Triple::ArchType Arch = getTriple().getArch(); + if (Arch == llvm::Triple::arm || + Arch == llvm::Triple::x86 || + Arch == llvm::Triple::x86_64) + return false; + return true; + } + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; +}; + +class LLVM_LIBRARY_VISIBILITY Minix : public Generic_ELF { +public: + Minix(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; +}; + +class LLVM_LIBRARY_VISIBILITY DragonFly : public Generic_ELF { +public: + DragonFly(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; +}; + +class LLVM_LIBRARY_VISIBILITY Linux : public Generic_ELF { +public: + Linux(const Driver &D, const llvm::Triple& Triple, const ArgList &Args); + + virtual bool HasNativeLLVMSupport() const; + + 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; + +private: + static bool addLibStdCXXIncludePaths(Twine Base, Twine TargetArchDir, + const ArgList &DriverArgs, + ArgStringList &CC1Args); +}; + + +/// TCEToolChain - A tool chain using the llvm bitcode tools to perform +/// all subcommands. See http://tce.cs.tut.fi for our peculiar target. +class LLVM_LIBRARY_VISIBILITY TCEToolChain : public ToolChain { +public: + TCEToolChain(const Driver &D, const llvm::Triple& Triple); + ~TCEToolChain(); + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; + bool IsMathErrnoDefault() const; + bool IsUnwindTablesDefault() const; + const char* GetDefaultRelocationModel() const; + const char* GetForcedPicModel() const; + +private: + mutable llvm::DenseMap<unsigned, Tool*> Tools; + +}; + +class LLVM_LIBRARY_VISIBILITY Windows : public ToolChain { + mutable llvm::DenseMap<unsigned, Tool*> Tools; + +public: + Windows(const Driver &D, const llvm::Triple& Triple); + + virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, + const ActionList &Inputs) const; + + virtual bool IsIntegratedAssemblerDefault() const; + 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 +} // end namespace driver +} // end namespace clang + +#endif |