Vendor import of lld release_39 branch r276489:vendor/lld/lld-release_39-r276489

https://llvm.org/svn/llvm-project/lld/branches/release_39@276489

1 files changed, 54 insertions, 9 deletions

diff --git a/ELF/Config.h b/ELF/Config.h
index c279b99b43c1..2ccd95e88775 100644
--- a/ELF/Config.h
+++ b/ELF/Config.h
@@ -17,10 +17,10 @@
 #include <vector>
 
 namespace lld {
-namespace elf2 {
+namespace elf {
 
 class InputFile;
-class SymbolBody;
+struct Symbol;
 
 enum ELFKind {
   ELFNoneKind,
@@ -30,60 +30,105 @@ enum ELFKind {
   ELF64BEKind
 };
 
+enum class BuildIdKind { None, Fnv1, Md5, Sha1, Hexstring };
+
+enum class UnresolvedPolicy { NoUndef, Error, Warn, Ignore };
+
+struct SymbolVersion {
+  llvm::StringRef Name;
+  bool IsExternCpp;
+};
+
+// 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, size_t Id) : Name(Name), Id(Id) {}
+  llvm::StringRef Name;
+  size_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 {
-  SymbolBody *EntrySym = nullptr;
-  SymbolBody *MipsGpDisp = nullptr;
+  Symbol *EntrySym = nullptr;
   InputFile *FirstElf = nullptr;
   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;
   std::string RPath;
-  llvm::MapVector<llvm::StringRef, std::vector<llvm::StringRef>> OutputSections;
+  std::vector<VersionDefinition> VersionDefinitions;
+  std::vector<llvm::StringRef> DynamicList;
   std::vector<llvm::StringRef> SearchPaths;
   std::vector<llvm::StringRef> Undefined;
+  std::vector<SymbolVersion> VersionScriptGlobals;
+  std::vector<uint8_t> BuildIdVector;
   bool AllowMultipleDefinition;
   bool AsNeeded = false;
   bool Bsymbolic;
+  bool BsymbolicFunctions;
+  bool Demangle = true;
+  bool DisableVerify;
   bool DiscardAll;
   bool DiscardLocals;
   bool DiscardNone;
+  bool EhFrameHdr;
   bool EnableNewDtags;
   bool ExportDynamic;
+  bool FatalWarnings;
   bool GcSections;
   bool GnuHash = false;
+  bool ICF;
   bool Mips64EL = false;
-  bool NoInhibitExec;
-  bool NoUndefined;
+  bool NoGnuUnique;
+  bool NoUndefinedVersion;
+  bool Pic;
+  bool Pie;
   bool PrintGcSections;
+  bool Rela;
+  bool Relocatable;
+  bool SaveTemps;
   bool Shared;
   bool Static = false;
   bool StripAll;
+  bool StripDebug;
   bool SysvHash = true;
+  bool Threads;
+  bool Trace;
   bool Verbose;
+  bool WarnCommon;
+  bool ZCombreloc;
   bool ZExecStack;
   bool ZNodelete;
   bool ZNow;
   bool ZOrigin;
   bool ZRelro;
+  UnresolvedPolicy UnresolvedSymbols;
+  BuildIdKind BuildId = BuildIdKind::None;
   ELFKind EKind = ELFNoneKind;
+  uint16_t DefaultSymbolVersion = llvm::ELF::VER_NDX_GLOBAL;
   uint16_t EMachine = llvm::ELF::EM_NONE;
   uint64_t EntryAddr = -1;
-  unsigned Optimize = 0;
+  uint64_t ImageBase;
+  unsigned LtoJobs;
+  unsigned LtoO;
+  unsigned Optimize;
 };
 
 // The only instance of Configuration struct.
 extern Configuration *Config;
 
-} // namespace elf2
+} // namespace elf
 } // namespace lld
 
 #endif