Misc #21639: Guidelines or documentation for porting Ruby to a new platform (z/OS)

• Status: Feedback
• Assignee: -

[[e-mail] (Sachin T)]

Hi Ruby team,

I work on the IBM z/OS platform and am currently working on porting Ruby to it.

I wanted to ask whether there are any existing porting guidelines, documentation, or recommended steps for bringing Ruby up on a new platform.

Current status:

I’ve successfully started building Ruby using the standard ./configure && make flow.

RJIT/YJIT are disabled, but miniruby currently exits silently with no output (miniruby -v).

If there are any references, platform-porting checklists, or recommended practices for handling platform-specific code (especially around TLS, signal handling, and miniruby bring-up), it would be really helpful.

Thanks in advance for your guidance.

Best regards,
Sachin

[mame (Yusuke Endoh)]

• Status changed from Open to Feedback

Unfortunately, no such guidelines exist. Anyone with access to a z/OS Linux environment will likely need to investigate the code on their own.

By the way, for a long time, @ReiOdaira (Rei Odaira) had been maintaining the CI for Ruby on z/OS Linux, which I believe was on an IBM-provided machine.
The CI ran successfully until May 2024, but began failing consistently after that and has since been removed from the official CI targets.

https://rubyci.org/

The tests do appear to still be running, however:

https://rubyci.s3.amazonaws.com/rhel_zlinux/ruby-master/recent.html

I don't know if @ReiOdaira (Rei Odaira) is still with IBM, but I'd suggest trying to contact him for guidance.