[llvm] [llvm][ELF]Add Shdr check for getBuildID (PR #126537)

[James Henderson via llvm-commits]

================
@@ -40,7 +40,7 @@ static StringRef getInvalidNoteELF(bool WithShdr) {
   Machine:        EM_X86_64
 ProgramHeaders:
   - Type:         PT_NOTE
-    FileSize:     0xffffffffffffffff
+    FileSize:     0xffffffffffffff88
----------------
jh7370 wrote:

Please refer back to [this comment](https://github.com/llvm/llvm-project/pull/126537#discussion_r2374798980) above. I think that should mostly answer your question. It's enough to only check one of the paths there _in this PR,_ because what you're after is test the behaviour when an error is encountered in the underlying code.

https://github.com/llvm/llvm-project/pull/126537