[lld] lld: add support for NOCROSSREFS(_TO) (PR #95714)

[Peter Smith via llvm-commits]

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@@ -235,6 +236,21 @@ void ScriptParser::readVersionScriptCommand() {
   }
 }
 
+void ScriptParser::readNoCrossRefs(bool to) {
+  expect("(");
+
+  script->nocrossrefs.push_back({});
+
+  script->nocrossrefs.back().firstOnly = to;
+
+  while (!atEOF() && !errorCount() && peek() != ")") {
+    StringRef section = next();
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smithp35 wrote:

Do we do any checking that the token is a valid OutputSection name?

Although not possible at this point, it may be worth validating that the names given actually match the names of OutputSections in the file (probably warning if it doesn't match).

https://github.com/llvm/llvm-project/pull/95714