On Tue, 1 Feb 2022 12:42:26 GMT, David Holmes <dhol...@openjdk.org> wrote:
>> As per this conversation: >> https://github.com/openjdk/jdk/pull/6334#discussion_r791722292 >> >> The idea was, the user is explicitly asking for asking for pac-ret so we >> should honour that. Whereas standard would only enable what is supported for >> that system. > > But we can't honour that because it is not supported. Further, the suggestion > in the referenced discussion seemed to be based on the assumption that doing > so would be harmless because it is NOP based, but you have indicated that may > not be the case and so it may actually lead to a crash! Given that the implementation has now changed so much that it's no longer NOP based, I'll go with @dholmes-ora . One other thing, though: it might be better to say here "but this VM was built without ROP-protection support." That's more informative, IMO. ------------- PR: https://git.openjdk.java.net/jdk/pull/6334
