[llvm] [llvm-readobj] Dump callgraph section info for ELF (PR #157499)

[Prabhu Rajasekaran via llvm-commits]

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@@ -432,9 +447,39 @@ template <typename ELFT> class ELFDumper : public ObjDumper {
       const SFrameParser<ELFT::Endianness> &Parser,
       const typename SFrameParser<ELFT::Endianness>::FDERange::iterator FDE,
       ArrayRef<Relocation<ELFT>> Relocations, const Elf_Shdr *RelocSymTab);
+  // Callgraph - Main data structure to maintain per function callgraph
+  // information.
+  SmallVector<FunctionCallgraphInfo, 16> FuncCGInfos;
+
+  // // Callgraph - 64 bit type id mapped to entry PC addresses of functions
+  // which
+  // // are of the given type id.
+  // MapVector<uint64_t, SmallVector<typename ELFT::uint>> TypeIdToIndirTargets;
+
+  // Callgraph - Read callgraph section and process its contents to populate
+  // Callgraph related data structures which will be used to dump callgraph
+  // info. Returns false if there is no .llvm.callgraph section in the input
+  // file.
+  bool processCallGraphSection();
+
+  void getCallGraphRelocations(std::vector<Relocation<ELFT>> &Relocations,
+                               const Elf_Shdr *&RelocSymTab);
 
 private:
   mutable SmallVector<std::optional<VersionEntry>, 0> VersionMap;
+
+protected:
+  std::string getFunctionNames(uint64_t FuncAddr) {
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Prabhuk wrote:

Renamed it back to getFunctionNames and it returns a smallvector of std::string 


https://github.com/llvm/llvm-project/pull/157499