[lld] [llvm] [llvm-objdump][ARM] Find ELF file PLT entries for arm, thumb (PR #130764)

[Fangrui Song via llvm-commits]

================
@@ -1770,9 +1775,34 @@ disassembleObject(ObjectFile &Obj, const ObjectFile &DbgObj,
   if (Obj.isELF() && Obj.sections().empty())
     createFakeELFSections(Obj);
 
+  DisassemblerTarget *PltTarget = DT;
+  auto SectionNames = getSectionNames(Obj);
+  if (SecondaryTarget && isArmElf(Obj)) {
+    auto PltSectionRef = SectionNames.find(".plt");
+    if (PltSectionRef != SectionNames.end()) {
+      bool PltIsThumb = false;
+      for (auto [Addr, SymbolName] : AllMappingSymbols[PltSectionRef->second]) {
+        if (Addr == 0) {
----------------
MaskRay wrote:

early return
```
if (Addr != 0)
  break;
...
```

https://github.com/llvm/llvm-project/pull/130764