148 lines
3.7 KiB
C++
148 lines
3.7 KiB
C++
//===- Config.h -------------------------------------------------*- C++ -*-===//
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//
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// The LLVM Linker
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLD_ELF_CONFIG_H
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#define LLD_ELF_CONFIG_H
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#include "llvm/ADT/MapVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/ELF.h"
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#include <vector>
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namespace lld {
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namespace elf {
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class InputFile;
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struct Symbol;
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enum ELFKind {
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ELFNoneKind,
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ELF32LEKind,
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ELF32BEKind,
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ELF64LEKind,
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ELF64BEKind
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};
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// For --build-id.
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enum class BuildIdKind { None, Fast, Md5, Sha1, Hexstring, Uuid };
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// For --discard-{all,locals,none}.
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enum class DiscardPolicy { Default, All, Locals, None };
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// For --strip-{all,debug}.
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enum class StripPolicy { None, All, Debug };
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// For --unresolved-symbols.
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enum class UnresolvedPolicy { NoUndef, ReportError, Warn, Ignore };
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struct SymbolVersion {
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llvm::StringRef Name;
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bool IsExternCpp;
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bool HasWildcards;
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};
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// This struct contains symbols version definition that
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// can be found in version script if it is used for link.
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struct VersionDefinition {
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VersionDefinition(llvm::StringRef Name, size_t Id) : Name(Name), Id(Id) {}
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llvm::StringRef Name;
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size_t Id;
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std::vector<SymbolVersion> Globals;
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size_t NameOff; // Offset in string table.
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};
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// This struct contains the global configuration for the linker.
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// Most fields are direct mapping from the command line options
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// and such fields have the same name as the corresponding options.
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// Most fields are initialized by the driver.
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struct Configuration {
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Symbol *EntrySym = nullptr;
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InputFile *FirstElf = nullptr;
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llvm::StringMap<uint64_t> SectionStartMap;
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llvm::StringRef DynamicLinker;
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llvm::StringRef Entry;
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llvm::StringRef Emulation;
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llvm::StringRef Fini;
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llvm::StringRef Init;
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llvm::StringRef LtoAAPipeline;
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llvm::StringRef LtoNewPmPasses;
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llvm::StringRef OutputFile;
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llvm::StringRef SoName;
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llvm::StringRef Sysroot;
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std::string RPath;
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std::vector<VersionDefinition> VersionDefinitions;
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std::vector<llvm::StringRef> AuxiliaryList;
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std::vector<llvm::StringRef> DynamicList;
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std::vector<llvm::StringRef> SearchPaths;
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std::vector<llvm::StringRef> Undefined;
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std::vector<SymbolVersion> VersionScriptGlobals;
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std::vector<uint8_t> BuildIdVector;
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bool AllowMultipleDefinition;
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bool AsNeeded = false;
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bool Binary = false;
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bool Bsymbolic;
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bool BsymbolicFunctions;
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bool Demangle = true;
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bool DisableVerify;
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bool EhFrameHdr;
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bool EnableNewDtags;
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bool ExportDynamic;
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bool FatalWarnings;
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bool GcSections;
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bool GnuHash = false;
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bool ICF;
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bool Mips64EL = false;
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bool NoGnuUnique;
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bool NoUndefinedVersion;
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bool Nostdlib;
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bool OFormatBinary;
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bool Pic;
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bool Pie;
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bool PrintGcSections;
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bool Rela;
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bool Relocatable;
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bool SaveTemps;
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bool Shared;
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bool Static = false;
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bool SysvHash = true;
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bool Target1Rel;
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bool Threads;
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bool Trace;
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bool Verbose;
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bool WarnCommon;
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bool ZCombreloc;
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bool ZExecStack;
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bool ZNodelete;
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bool ZNow;
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bool ZOrigin;
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bool ZRelro;
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DiscardPolicy Discard;
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StripPolicy Strip = StripPolicy::None;
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UnresolvedPolicy UnresolvedSymbols;
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BuildIdKind BuildId = BuildIdKind::None;
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ELFKind EKind = ELFNoneKind;
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uint16_t DefaultSymbolVersion = llvm::ELF::VER_NDX_GLOBAL;
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uint16_t EMachine = llvm::ELF::EM_NONE;
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uint64_t EntryAddr = 0;
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uint64_t ImageBase;
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uint64_t ZStackSize = -1;
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unsigned LtoJobs;
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unsigned LtoO;
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unsigned Optimize;
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};
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// The only instance of Configuration struct.
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extern Configuration *Config;
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} // namespace elf
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} // namespace lld
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#endif
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