RFR: 8266749: AArch64: Backtracing broken on PAC enabled systems

Tue May 18 10:03:50 UTC 2021

On Fri, 14 May 2021 15:37:13 GMT, Alan Hayward <github.com+4146708+a74nh at openjdk.org> wrote:

> maybe it's too early as 11.4 is still beta. ( beta3 ) and java_m1 is not arm64e process (arm64e = arm64 + PAC)

I think you have to explicitly turn on arm64e on macOS, see at the bottom here: https://developer.apple.com/documentation/driverkit/debugging_and_testing_system_extensions (I have never tried it myself).

As far as I know Windows/AArch64 doesn't support PAC, so imho we don't need to do anything on Windows there in that regard. I'll ask around internally if there are any plans for PAC on Windows.

-------------

PR: https://git.openjdk.java.net/jdk/pull/4029