Re: linux native async mode support

[Daniel Jacobowitz <drow@false.org>]

On Sat, Mar 15, 2008 at 01:57:47AM +0000, Pedro Alves wrote:
> we get to the point where the non-async code path is not needed anymore,
> we can drop a bunch of support code.  That's doesn't seem likelly to
> happen anytime soon in the common code, but it can be done target by
> target.  Linux native and target (extended-)remote are the first
> candidates.

Exactly.  Pedro and I both know how to do this on native Windows, and
can test there.  A similar version to the GNU/Linux code will work on
other ptrace targets (not exactly the same, I think, but pretty
close).  Ttrace may need something different, but I'm sure it's
possible.  I suspect that procfs will be easy, for someone more
familiar with it.  And the various remote targets are all similar
in this regard.

In short, I don't think it will be very difficult to get rid of
synchronous target_wait.  It will probably take a year from when
we get GNU/Linux and remote working, while we round up people familiar
with all the various supported interfaces, and some of them we'll
probably have to guess.  But I think we can do it.

-- 
Daniel Jacobowitz
CodeSourcery