[llvm] llvm-objdump/ELF: fix crash when reading dyn str table (PR #87519)

[Fangrui Song via llvm-commits]

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@@ -232,14 +231,16 @@ template <class ELFT> void ELFDumper<ELFT>::printDynamicSection() {
         Dyn.d_tag == ELF::DT_AUXILIARY || Dyn.d_tag == ELF::DT_FILTER) {
       Expected<StringRef> StrTabOrErr = getDynamicStrTab(Elf);
       if (StrTabOrErr) {
-        const char *Data = StrTabOrErr.get().data();
-        outs() << (Data + Dyn.d_un.d_val) << "\n";
+        const char *Data = StrTabOrErr->data();
+        outs() << format(TagFmt.c_str(), Str.c_str());
+        outs() << Data + Dyn.getVal() << "\n";
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MaskRay wrote:

`<< format(...) << (Data + Dyn.getVal()) << '\n'`

ditto below

https://github.com/llvm/llvm-project/pull/87519