================
@@ -8374,20 +8376,212 @@ static void HandlePtrAuthQualifier(ASTContext &Ctx,
QualType &T,
IsInvalid |= !S.checkPointerAuthDiscriminatorArg(
ExtraDiscriminatorArg, Sema::PADAK_ExtraDiscPtrAuth, ExtraDiscriminator);
- if (IsInvalid) {
- Attr.setInvalid();
- return;
+ std::optional<PointerAuthenticationMode> AuthenticationMode = std::nullopt;
+ SourceRange AuthenticationModeRange;
+
+ if (AuthenticationOptionsArg && !AuthenticationOptionsArg->containsErrors())
{
+ std::string OptionsString;
+ bool IsInitialized = false;
+ const StringLiteral *OptionsStringLiteral =
+ dyn_cast<StringLiteral>(AuthenticationOptionsArg);
+ auto ReportEvaluationOfExpressionIfNeeded = [&]() {
+ if (OptionsStringLiteral || !IsInitialized)
+ return;
+ S.Diag(AuthenticationOptionsArg->getBeginLoc(),
+ diag::note_ptrauth_evaluating_options)
+ << OptionsString << AuthenticationOptionsArg->getSourceRange();
+ };
+ auto DiagnoseInvalidOptionsParameter = [&](llvm::StringRef Reason,
+ std::optional<char> InvalidCh,
+ auto Location) {
+ S.Diag(AuthenticationOptionsArg->getExprLoc(),
+ diag::err_ptrauth_invalid_option)
+ << AttrName << Reason << Location << !!InvalidCh
+ << (InvalidCh ? *InvalidCh : '\0');
+ Attr.setInvalid();
+ ReportEvaluationOfExpressionIfNeeded();
+ };
+ if (AuthenticationOptionsArg->isValueDependent() ||
+ AuthenticationOptionsArg->isTypeDependent()) {
+ DiagnoseInvalidOptionsParameter(
+ "is dependent", std::nullopt,
+ AuthenticationOptionsArg->getSourceRange());
+ return;
+ }
+ if (OptionsStringLiteral) {
+ if (OptionsStringLiteral->containsNonAsciiOrNull()) {
+ DiagnoseInvalidOptionsParameter(
+ "contains invalid characters", std::nullopt,
+ AuthenticationOptionsArg->getSourceRange());
+ return;
+ }
----------------
ojhunt wrote:
There are more than just those three strings, but adding the additional ones
implies the ability to test them, which means pulling in the implementation of
those options.
I went for this specific subset because PointerAuthQualifier already has the
required functionality, and so this PR could be very close to just the parsing.
https://github.com/llvm/llvm-project/pull/136828
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