[llvm-readobj] Change variable names to match LLVM-style. NFC.

[Higuoxing]

Summary

This patch helps change variable names to match LLVM-style

[jhenderson]

LGTM, with the change in name of one of the variables as suggested inline.

llvm/tools/llvm-readobj/ELFDumper.cpp

232

Ref -> Need, to match the type.

[Higuoxing]

Change SymbolVersionRefSection to SymbolVersionNeedSection

[Higuoxing]

Rebase.

llvm/tools/llvm-readobj/ELFDumper.cpp

private:
   const Elf_Hash *HashTable = nullptr;
   const Elf_GnuHash *GnuHashTable = nullptr;
   const Elf_Shdr *DotSymtabSec = nullptr;
   const Elf_Shdr *DotCGProfileSec = nullptr;
   const Elf_Shdr *DotAddrsigSec = nullptr;
   StringRef DynSymtabName;
   ArrayRef<Elf_Word> ShndxTable;
 
-  const Elf_Shdr *dot_gnu_version_sec = nullptr;   // .gnu.version
-  const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
-  const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
+  const Elf_Shdr *SymbolVersionSection = nullptr;   // .gnu.version
+  const Elf_Shdr *SymbolVersionNeedSection = nullptr; // .gnu.version_r
+  const Elf_Shdr *SymbolVersionDefSection = nullptr; // .gnu.version_d
 
   // Records for each version index the corresponding Verdef or Vernaux entry.
   // This is filled the first time LoadVersionMap() is called.
   class VersionMapEntry : public PointerIntPair<const void *, 1> {
   public:
     // If the integer is 0, this is an Elf_Verdef*.
     // If the integer is 1, this is an Elf_Vernaux*.
     VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
if (index >= VersionMap.size())
       VersionMap.resize(index + 1);
     VersionMap[index] = VersionMapEntry(vd);
     p += vd->vd_next;
   }
 }
 
 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const {
   // If there is no dynamic symtab or version table, there is nothing to do.
-  if (!DynSymRegion.Addr || !dot_gnu_version_sec)
+  if (!DynSymRegion.Addr || !SymbolVersionSection)
     return;
 
   // Has the VersionMap already been loaded?
   if (!VersionMap.empty())
     return;
 
   // The first two version indexes are reserved.
   // Index 0 is LOCAL, index 1 is GLOBAL.
   VersionMap.push_back(VersionMapEntry());
   VersionMap.push_back(VersionMapEntry());
 
-  if (dot_gnu_version_d_sec)
-    LoadVersionDefs(dot_gnu_version_d_sec);
+  if (SymbolVersionDefSection)
+    LoadVersionDefs(SymbolVersionDefSection);
 
-  if (dot_gnu_version_r_sec)
-    LoadVersionNeeds(dot_gnu_version_r_sec);
+  if (SymbolVersionNeedSection)
+    LoadVersionNeeds(SymbolVersionNeedSection);
 }
 
 template <typename ELFT>
 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
                                             const Elf_Sym *Sym,
                                             bool &IsDefault) const {
   // This is a dynamic symbol. Look in the GNU symbol version table.
-  if (!dot_gnu_version_sec) {
+  if (!SymbolVersionSection) {
     // No version table.
     IsDefault = false;
     return "";
   }
 
   // Determine the position in the symbol table of this entry.
   size_t EntryIndex = (reinterpret_cast<uintptr_t>(Sym) -
                         reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) /
                        sizeof(Elf_Sym);
 
   // Get the corresponding version index entry.
   const Elf_Versym *Versym =
       unwrapOrError(ObjF->getELFFile()->template getEntry<Elf_Versym>(
-          dot_gnu_version_sec, EntryIndex));
+          SymbolVersionSection, EntryIndex));
   return this->getSymbolVersionByIndex(StrTab, Versym->vs_index, IsDefault);
 }
 
 static std::string maybeDemangle(StringRef Name) {
   return opts::Demangle ? demangle(Name) : Name.str();
 }
 
 template <typename ELFT>
case ELF::SHT_DYNSYM:
       // This is only used (if Elf_Shdr present)for naming section in GNU style
       DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
       DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec));
       break;
     case ELF::SHT_SYMTAB_SHNDX:
       ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
       break;
     case ELF::SHT_GNU_versym:
-      if (dot_gnu_version_sec != nullptr)
+      if (SymbolVersionSection != nullptr)
         reportError("Multiple SHT_GNU_versym");
-      dot_gnu_version_sec = &Sec;
+      SymbolVersionSection = &Sec;
       break;
     case ELF::SHT_GNU_verdef:
-      if (dot_gnu_version_d_sec != nullptr)
+      if (SymbolVersionDefSection != nullptr)
         reportError("Multiple SHT_GNU_verdef");
-      dot_gnu_version_d_sec = &Sec;
+      SymbolVersionDefSection = &Sec;
       break;
     case ELF::SHT_GNU_verneed:
-      if (dot_gnu_version_r_sec != nullptr)
+      if (SymbolVersionNeedSection != nullptr)
         reportError("Multiple SHT_GNU_verneed");
-      dot_gnu_version_r_sec = &Sec;
+      SymbolVersionNeedSection = &Sec;
       break;
     case ELF::SHT_LLVM_CALL_GRAPH_PROFILE:
       if (DotCGProfileSec != nullptr)
         reportError("Multiple .llvm.call-graph-profile");
       DotCGProfileSec = &Sec;
       break;
     case ELF::SHT_LLVM_ADDRSIG:
       if (DotAddrsigSec != nullptr)
void ELFDumper<ELFT>::printProgramHeaders(
     bool PrintProgramHeaders, cl::boolOrDefault PrintSectionMapping) {
   ELFDumperStyle->printProgramHeaders(ObjF->getELFFile(), PrintProgramHeaders,
                                       PrintSectionMapping);
 }
 
 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() {
   // Dump version symbol section.
   ELFDumperStyle->printVersionSymbolSection(ObjF->getELFFile(),
-                                            dot_gnu_version_sec);
+                                            SymbolVersionSection);
 
   // Dump version definition section.
   ELFDumperStyle->printVersionDefinitionSection(ObjF->getELFFile(),
-                                                dot_gnu_version_d_sec);
+                                                SymbolVersionDefSection);
 
   // Dump version dependency section.
   ELFDumperStyle->printVersionDependencySection(ObjF->getELFFile(),
-                                                dot_gnu_version_r_sec);
+                                                SymbolVersionNeedSection);
 }
 
 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
   ELFDumperStyle->printDynamicRelocations(ObjF->getELFFile());
 }
 
 template <class ELFT>
 void ELFDumper<ELFT>::printSymbols(bool PrintSymbols,