Re: [PATCH] Fix usage of inferior_ptid in two thread_alive implementations

[Simon Marchi <simon.marchi@polymtl.ca>]

On 2017-03-29 15:32, John Baldwin wrote:
> I don't think any modern versions of either FreeBSD or OpenBSD
> use bsd-uthread.c.  The uthread target is for a thread implementation
> that only provided threads in userland on top of a single process
> (like "green" threads in the JDK).  FreeBSD last shipped a release
> with support for this thread model (FreeBSD 6.4) in 2008.  I can't
> speak to when OpenBSD stopped using user-based threads, but the
> existence of kernel-based thread support in the obsd-nat target
> implies it isn't used anymore either.  For FreeBSD at least I think
> it would be fine to remove bsd-uthread.c.
> 
> (I should also send a patch in to remove FreeBSD/alpha as that
> platform was retired at around the same time.  The last release
> to support alpha was 6.3 also released in 2008.)

Thanks for the reply, this is very valuable information.

I would appreciate very much any effort to remove obsolete targets, as 
it has some maintenance cost.  For example, doing refactors that require 
touching all the targets (such as changing the interface of a target_ops 
method) is very long.  If we can remove any target that has no reason to 
be today, it can only help.

Simon