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

[Fangrui Song via llvm-commits]

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@@ -2639,6 +2648,47 @@ static uint32_t getAndFeatures() {
   return ret;
 }
 
+static void getAarch64PauthInfo() {
+  if (ctx.objectFiles.empty())
+    return;
+
+  auto NonEmptyIt = std::find_if(
+      ctx.objectFiles.begin(), ctx.objectFiles.end(),
+      [](const ELFFileBase *f) { return !f->aarch64PauthAbiTag.empty(); });
+  if (NonEmptyIt == ctx.objectFiles.end())
+    return;
+
+  ctx.aarch64PauthAbiTag = (*NonEmptyIt)->aarch64PauthAbiTag;
+  StringRef F1 = (*NonEmptyIt)->getName();
+  for (ELFFileBase *F : ArrayRef(ctx.objectFiles)) {
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MaskRay wrote:

`for (ELFFileBase *f : ctx.objectFiles) {` (no capitalization)

Please fix the variable casing everywhere.


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