Handle relocations that don't point to symbols.

In ELF (as in MachO), not all relocations point to symbols. Represent this
properly by using a symbol_iterator instead of a SymbolRef. Update llvm-readobj
ELF's dumper to handle relocatios without symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183284 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 3 insertions, 4 deletions

diff --git a/tools/llvm-objdump/COFFDump.cpp b/tools/llvm-objdump/COFFDump.cpp
index 2ada683f2d..7b550077ae 100644
--- a/tools/llvm-objdump/COFFDump.cpp
+++ b/tools/llvm-objdump/COFFDump.cpp
@@ -178,7 +178,7 @@ static error_code resolveSymbol(const std::vector<RelocationRef> &Rels,
     uint64_t Ofs;
     if (error_code ec = I->getOffset(Ofs)) return ec;
     if (Ofs == Offset) {
-      if (error_code ec = I->getSymbol(Sym)) return ec;
+      Sym = *I->getSymbol();
       break;
     }
   }
diff --git a/tools/llvm-objdump/MachODump.cpp b/tools/llvm-objdump/MachODump.cpp
index 03a383eb12..1ee3e42dab 100644
--- a/tools/llvm-objdump/MachODump.cpp
+++ b/tools/llvm-objdump/MachODump.cpp
@@ -250,10 +250,9 @@ static void DisassembleInputMachO2(StringRef Filename,
       Sections[SectIdx].getAddress(SectionAddress);
       RelocOffset -= SectionAddress;
 
-      SymbolRef RelocSym;
-      RI->getSymbol(RelocSym);
+      symbol_iterator RelocSym = RI->getSymbol();
 
-      Relocs.push_back(std::make_pair(RelocOffset, RelocSym));
+      Relocs.push_back(std::make_pair(RelocOffset, *RelocSym));
     }
     array_pod_sort(Relocs.begin(), Relocs.end());