d60dae8a6a
Patch by Shridhar Joshi. This option provides names of all the link time modules which define and reference symbols requested by user. This helps to speed up application development by detecting references causing undefined symbols. It also helps in detecting symbols being resolved to wrong (unintended) definitions in case of applications containing multiple definitions for same symbols with different types, bindings. Implements PR28226. llvm-svn: 273536
129 lines
3.1 KiB
C++
129 lines
3.1 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/ADT/StringSet.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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enum class BuildIdKind { None, Fnv1, Md5, Sha1, Hexstring };
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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 Version {
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Version(llvm::StringRef Name) : Name(Name) {}
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llvm::StringRef Name;
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llvm::StringRef Parent;
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std::vector<llvm::StringRef> 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::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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llvm::StringSet<> TraceSymbol;
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std::string RPath;
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std::vector<Version> SymbolVersions;
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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<llvm::StringRef> 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 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 DiscardAll;
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bool DiscardLocals;
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bool DiscardNone;
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bool EhFrameHdr;
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bool EnableNewDtags;
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bool ExportDynamic;
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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 NoUndefined;
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bool NoinhibitExec;
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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 StripAll;
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bool StripDebug;
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bool SysvHash = true;
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bool Threads;
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bool Trace;
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bool Verbose;
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bool VersionScriptGlobalByDefault = true;
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bool WarnCommon;
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bool ZCombreloc;
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bool ZDefs;
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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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BuildIdKind BuildId = BuildIdKind::None;
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ELFKind EKind = ELFNoneKind;
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uint16_t EMachine = llvm::ELF::EM_NONE;
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uint64_t EntryAddr = -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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