Re: [PATCH] Cygwin: cpuid: add AArch64 build stubs

On 07/05/2026 11:45, Chandru Kumaresan wrote:
> Hi Corinna,
> 
> This patch adds ARM64 support for CPU information and cache detection used by /proc/cpuinfo and sysconf cache queries.
> Thanks & regards,
> K Chandru
> In-lined patch:
> 
> ---
>   winsup/cygwin/fhandler/proc.cc       | 242 +++++++++++++++++++++++++++
>   winsup/cygwin/local_includes/cpuid.h |  21 ++-
>   winsup/cygwin/sysconf.cc             | 148 ++++++++++++++++
>   3 files changed, 408 insertions(+), 3 deletions(-)

Thanks.

I don't have any substantive comments (apart from "oh, you're supposed 
to grovel over a registry key to get the cpu information, nice :(").

Brian,

I think you're much more familiar with this area of the code than me. 
Please chime in if you have any comments!