[lld] [ELF] Add target-specific relocation scanning for AArch64 (PR #181099)

[Fangrui Song via llvm-commits]

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@@ -156,11 +157,12 @@ class RelocScan {
     return true;
   }
 
-  // Handle TLSDESC relocation.
+  // Handle TLSDESC relocation. NEEDS_TLSDESC_NONAUTH is a no-op for
+  // non-AArch64 targets and detects incompatibility with NEEDS_TLSDESC_AUTH.
   void handleTlsDesc(RelExpr sharedExpr, RelExpr ieExpr, RelType type,
                      uint64_t offset, int64_t addend, Symbol &sym) {
     if (ctx.arg.shared) {
-      sym.setFlags(NEEDS_TLSDESC);
+      sym.setFlags(NEEDS_TLSDESC | NEEDS_TLSDESC_NONAUTH);
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MaskRay wrote:

done

https://github.com/llvm/llvm-project/pull/181099