[llvm] [llvm-objdump] Add possibility to verify .note section format (PR #90458)

[Fangrui Song via llvm-commits]

================
@@ -623,6 +623,58 @@ handleUserSection(const NewSectionInfo &NewSection,
   return F(NewSection.SectionName, Data);
 }
 
+static Error verifyNoteSection(StringRef Name, endianness Endianness,
+                               ArrayRef<uint8_t> Data) {
+  // An ELF note has the following structure:
----------------
MaskRay wrote:

Note: one note section may contain multiple notes.
The practical example is `.note.gnu.property`.

There is some alignment complexity. See https://reviews.llvm.org/D150022

https://github.com/llvm/llvm-project/pull/90458