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

[Eli Zaretskii <eliz@gnu.org>]

> Date: Wed, 22 Feb 2017 16:06:50 -0500
> From: Simon Marchi <simon.marchi@polymtl.ca>
> Cc: Pedro Alves <palves@redhat.com>, simon.marchi@ericsson.com,
>  gdb-patches@sourceware.org
> 
> > Is that function even called in the go32 port?
> 
> Why wouldn't it?  For example, you could have this pseudo-stack:
> 
> #0 go32_thread_alive
> #1 target_thread_alive
> #2 thread_alive
> #3 thread_apply_all_command
> 
> If this target doesn't support multiple threads, it's possible that 
> inferior_ptid will always be equal to ptid (equal to the only existing 
> thread).

Go32 indeed doesn't support multiple threads.

> But still it would be "more correct" to read the parameter instead
> of the global, IMO.

I didn't say anything to the contrary.  I'm saying that if go32
doesn't have this function called, I don't have to worry about the
implications of the change.