Clarify getRelocationAddress x getRelocationOffset a bit.

getRelocationAddress is for dynamic libraries and executables,
getRelocationOffset for relocatable objects.

Mark the getRelocationAddress of COFF and MachO as not implemented yet. Add a
test of ELF's. llvm-readobj -r now prints the same values as readelf -r.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180259 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-objdump/llvm-objdump.cpp b/tools/llvm-objdump/llvm-objdump.cpp
index 9985599..247b90f 100644
--- a/tools/llvm-objdump/llvm-objdump.cpp
+++ b/tools/llvm-objdump/llvm-objdump.cpp
@@ -186,8 +186,8 @@
 
 bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) {
   uint64_t a_addr, b_addr;
-  if (error(a.getAddress(a_addr))) return false;
-  if (error(b.getAddress(b_addr))) return false;
+  if (error(a.getOffset(a_addr))) return false;
+  if (error(b.getOffset(b_addr))) return false;
   return a_addr < b_addr;
 }
 
@@ -378,7 +378,7 @@
           if (error(rel_cur->getHidden(hidden))) goto skip_print_rel;
           if (hidden) goto skip_print_rel;
 
-          if (error(rel_cur->getAddress(addr))) goto skip_print_rel;
+          if (error(rel_cur->getOffset(addr))) goto skip_print_rel;
           // Stop when rel_cur's address is past the current instruction.
           if (addr >= Index + Size) break;
           if (error(rel_cur->getTypeName(name))) goto skip_print_rel;
@@ -417,7 +417,7 @@
       if (error(ri->getHidden(hidden))) continue;
       if (hidden) continue;
       if (error(ri->getTypeName(relocname))) continue;
-      if (error(ri->getAddress(address))) continue;
+      if (error(ri->getOffset(address))) continue;
       if (error(ri->getValueString(valuestr))) continue;
       outs() << address << " " << relocname << " " << valuestr << "\n";
     }