RFR: JDK-8301661: Enhance os::pd_print_cpu_info on macOS and Windows

[Matthias Baesken]

On Fri, 3 Feb 2023 08:42:47 GMT, David Holmes <dholmes at openjdk.org> wrote:

> Okay the usual question when we augment the information that will appear in hs_err file: how safe is this going to be to call from a signal handler?

Hi David , I think the sysctl / sysctlbyname calls on macOS are rather safe (and we use this already for some time for other entries e.g. in os::print_summary_info  in vm error reporting, so nothing really new. Not so sure about the Windows powerprof / powerbase API, this was not used before to my knowledge in OpenJDK. However we use both macOS and Windows APIs for some time in our internal JVM, no issues seen so far.

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

PR: https://git.openjdk.org/jdk/pull/12403