================
@@ -8373,10 +8375,140 @@ static void HandlePtrAuthQualifier(ASTContext &Ctx,
QualType &T,
IsAddressDiscriminated);
IsInvalid |= !S.checkPointerAuthDiscriminatorArg(
ExtraDiscriminatorArg, PointerAuthDiscArgKind::Extra,
ExtraDiscriminator);
+ std::string LastAuthenticationMode;
+ std::optional<PointerAuthenticationMode> AuthenticationMode = std::nullopt;
+ bool IsIsaPointer = false;
+ bool AuthenticatesNullValues = false;
+
+ if (AuthenticationOptionsArg && !AuthenticationOptionsArg->containsErrors())
{
+ StringRef OptionsString;
+ std::string EvaluatedString;
+ bool HasEvaluatedOptionsString = false;
+ const StringLiteral *OptionsStringLiteral =
+ dyn_cast<StringLiteral>(AuthenticationOptionsArg);
+ SourceRange AuthenticationOptionsRange =
+ AuthenticationOptionsArg->getSourceRange();
+ bool ReportedEvaluation = false;
+ auto ReportEvaluationOfExpressionIfNeeded = [&]() {
+ if (OptionsStringLiteral || !HasEvaluatedOptionsString ||
+ ReportedEvaluation)
+ return;
+ ReportedEvaluation = true;
+ S.Diag(AuthenticationOptionsRange.getBegin(),
+ diag::note_ptrauth_evaluating_options)
+ << OptionsString << AuthenticationOptionsRange;
+ };
+ auto DiagnoseInvalidOptionsParameter = [&](llvm::StringRef Reason) {
+ S.Diag(AuthenticationOptionsRange.getBegin(),
+ diag::err_ptrauth_invalid_option)
+ << AttrName << Reason;
+ Attr.setInvalid();
+ IsInvalid = true;
+ ReportEvaluationOfExpressionIfNeeded();
+ };
+ if (AuthenticationOptionsArg->isValueDependent() ||
+ AuthenticationOptionsArg->isTypeDependent()) {
+ DiagnoseInvalidOptionsParameter("is dependent");
+ return;
+ }
+ if (OptionsStringLiteral) {
+ OptionsString = OptionsStringLiteral->getString();
+ HasEvaluatedOptionsString = true;
+ } else {
+ Expr::EvalResult Eval;
+ bool Result = AuthenticationOptionsArg->EvaluateAsRValue(Eval, Ctx);
+ if (Result && Eval.Val.isLValue()) {
----------------
ojhunt wrote:
This section can be replaced once
https://github.com/llvm/llvm-project/pull/135864 or similar is landed as it
supports const char* constant expressions
https://github.com/llvm/llvm-project/pull/136828
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