[PATCH] D62296: [Object] object::ELFObjectFile::symbol_begin(): skip symbol index 0

[Fangrui Song via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL361506: [Object] object::ELFObjectFile::symbol_begin(): skip symbol index 0 (authored by MaskRay, committed by ).

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62296/new/

https://reviews.llvm.org/D62296

Files:
  llvm/trunk/include/llvm/Object/ELFObjectFile.h
  llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp


Index: llvm/trunk/include/llvm/Object/ELFObjectFile.h
===================================================================
--- llvm/trunk/include/llvm/Object/ELFObjectFile.h
+++ llvm/trunk/include/llvm/Object/ELFObjectFile.h
@@ -982,7 +982,9 @@
 
 template <class ELFT>
 basic_symbol_iterator ELFObjectFile<ELFT>::symbol_begin() const {
-  DataRefImpl Sym = toDRI(DotSymtabSec, 0);
+  DataRefImpl Sym =
+      toDRI(DotSymtabSec,
+            DotSymtabSec && DotSymtabSec->sh_size >= sizeof(Elf_Sym) ? 1 : 0);
   return basic_symbol_iterator(SymbolRef(Sym, this));
 }
 
Index: llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp
===================================================================
--- llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp
+++ llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp
@@ -1643,11 +1643,6 @@
 
   const StringRef FileName = O->getFileName();
   for (auto I = O->symbol_begin(), E = O->symbol_end(); I != E; ++I) {
-    // Skip printing the special zero symbol when dumping an ELF file.
-    // This makes the output consistent with the GNU objdump.
-    if (I == O->symbol_begin() && isa<ELFObjectFileBase>(O))
-      continue;
-
     const SymbolRef &Symbol = *I;
     uint64_t Address = unwrapOrError(Symbol.getAddress(), ArchiveName, FileName,
                                      ArchitectureName);


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