[lld] [lld][AArch64][ELF][PAC] Support AUTH relocations and AUTH ELF marking (PR #72714)

[Fangrui Song via llvm-commits]

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@@ -1164,6 +1190,12 @@ void RelocationScanner::processAux(RelExpr expr, RelType type, uint64_t offset,
     }
   }
 
+  if (config->emachine == EM_AARCH64 && type == R_AARCH64_AUTH_ABS64) {
+    error("relocation " + toString(type) + " against symbol '" + toString(sym) +
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MaskRay wrote:

errorOrWarn

https://github.com/llvm/llvm-project/pull/72714