| //===- Config.h -------------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Linker |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLD_ELF_CONFIG_H |
| #define LLD_ELF_CONFIG_H |
| |
| #include "llvm/ADT/MapVector.h" |
| #include "llvm/ADT/StringRef.h" |
| #include "llvm/ADT/StringSet.h" |
| #include "llvm/Support/ELF.h" |
| |
| #include <vector> |
| |
| namespace lld { |
| namespace elf { |
| |
| class InputFile; |
| struct Symbol; |
| |
| enum ELFKind { |
| ELFNoneKind, |
| ELF32LEKind, |
| ELF32BEKind, |
| ELF64LEKind, |
| ELF64BEKind |
| }; |
| |
| // For --build-id. |
| enum class BuildIdKind { None, Fast, Md5, Sha1, Hexstring, Uuid }; |
| |
| // For --discard-{all,locals,none} and --retain-symbols-file. |
| enum class DiscardPolicy { Default, All, Locals, RetainFile, None }; |
| |
| // For --strip-{all,debug}. |
| enum class StripPolicy { None, All, Debug }; |
| |
| // For --unresolved-symbols. |
| enum class UnresolvedPolicy { NoUndef, ReportError, Warn, Ignore }; |
| |
| // For --sort-section and linkerscript sorting rules. |
| enum class SortSectionPolicy { Default, None, Alignment, Name, Priority }; |
| |
| // For --target2 |
| enum class Target2Policy { Abs, Rel, GotRel }; |
| |
| struct SymbolVersion { |
| llvm::StringRef Name; |
| bool IsExternCpp; |
| bool HasWildcard; |
| }; |
| |
| // This struct contains symbols version definition that |
| // can be found in version script if it is used for link. |
| struct VersionDefinition { |
| VersionDefinition(llvm::StringRef Name, uint16_t Id) : Name(Name), Id(Id) {} |
| llvm::StringRef Name; |
| uint16_t Id; |
| std::vector<SymbolVersion> Globals; |
| size_t NameOff; // Offset in string table. |
| }; |
| |
| // This struct contains the global configuration for the linker. |
| // Most fields are direct mapping from the command line options |
| // and such fields have the same name as the corresponding options. |
| // Most fields are initialized by the driver. |
| struct Configuration { |
| InputFile *FirstElf = nullptr; |
| uint8_t OSABI = 0; |
| llvm::StringMap<uint64_t> SectionStartMap; |
| llvm::StringRef DynamicLinker; |
| llvm::StringRef Entry; |
| llvm::StringRef Emulation; |
| llvm::StringRef Fini; |
| llvm::StringRef Init; |
| llvm::StringRef LTOAAPipeline; |
| llvm::StringRef LTONewPmPasses; |
| llvm::StringRef OutputFile; |
| llvm::StringRef SoName; |
| llvm::StringRef Sysroot; |
| llvm::StringSet<> RetainSymbolsFile; |
| std::string RPath; |
| std::vector<VersionDefinition> VersionDefinitions; |
| std::vector<llvm::StringRef> AuxiliaryList; |
| std::vector<llvm::StringRef> SearchPaths; |
| std::vector<llvm::StringRef> SymbolOrderingFile; |
| std::vector<llvm::StringRef> Undefined; |
| std::vector<SymbolVersion> VersionScriptGlobals; |
| std::vector<SymbolVersion> VersionScriptLocals; |
| std::vector<uint8_t> BuildIdVector; |
| bool AllowMultipleDefinition; |
| bool AsNeeded = false; |
| bool Bsymbolic; |
| bool BsymbolicFunctions; |
| bool ColorDiagnostics = false; |
| bool DefineCommon; |
| bool Demangle = true; |
| bool DisableVerify; |
| bool EhFrameHdr; |
| bool EnableNewDtags; |
| bool ExportDynamic; |
| bool FatalWarnings; |
| bool GcSections; |
| bool GdbIndex; |
| bool GnuHash = false; |
| bool ICF; |
| bool Mips64EL = false; |
| bool MipsN32Abi = false; |
| bool NoGnuUnique; |
| bool NoUndefinedVersion; |
| bool Nostdlib; |
| bool OFormatBinary; |
| bool OMagic; |
| bool Pic; |
| bool Pie; |
| bool PrintGcSections; |
| bool Rela; |
| bool Relocatable; |
| bool SaveTemps; |
| bool SingleRoRx; |
| bool Shared; |
| bool Static = false; |
| bool SysvHash = true; |
| bool Target1Rel; |
| bool Threads; |
| bool Trace; |
| bool Verbose; |
| bool WarnCommon; |
| bool WarnMissingEntry; |
| bool ZCombreloc; |
| bool ZExecstack; |
| bool ZNodelete; |
| bool ZNow; |
| bool ZOrigin; |
| bool ZRelro; |
| bool ExitEarly; |
| bool ZWxneeded; |
| DiscardPolicy Discard; |
| SortSectionPolicy SortSection; |
| StripPolicy Strip = StripPolicy::None; |
| UnresolvedPolicy UnresolvedSymbols; |
| Target2Policy Target2 = Target2Policy::GotRel; |
| BuildIdKind BuildId = BuildIdKind::None; |
| ELFKind EKind = ELFNoneKind; |
| uint16_t DefaultSymbolVersion = llvm::ELF::VER_NDX_GLOBAL; |
| uint16_t EMachine = llvm::ELF::EM_NONE; |
| uint64_t ErrorLimit = 20; |
| uint64_t ImageBase; |
| uint64_t MaxPageSize; |
| uint64_t ZStackSize; |
| unsigned LTOPartitions; |
| unsigned LTOO; |
| unsigned Optimize; |
| unsigned ThinLTOJobs; |
| }; |
| |
| // The only instance of Configuration struct. |
| extern Configuration *Config; |
| |
| } // namespace elf |
| } // namespace lld |
| |
| #endif |