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Re: Remote Protocol: Z? packet proposal


On Tue, Aug 27, 2002 at 10:54:44PM -0400, Andrew Cagney wrote:
> >@item @code{Z?}@code{,}@var{t}@code{,}@var{count} --- probe for 
> >breakpoint/watchpoint support @strong{(draft)}
> >@cindex @code{Z?} packet
> >
> >@var{t} is type: see @ref{insert breakpoint or watchpoint
> >packet}. @var{count} is the number of breakpoints of type inserted
> >(including this one.)
> >
> >Perhaphs
> >
> >@var{t} is the breakpoint or watchpoint type (@pxref{insert breakpoint or 
> >watchpoint packet}).  @var{count} is the total number of 
> >breakpoints/watchpoints of type @var{t} that need to be inserted.
> >
> >Should it include that mysterious @var{other} parameter?  If it isn't 
> >doing anything useful then no.
> 
> No other comments, I guess not.  Time to turn it into a patch?
> 
> >For the others, I think we should adopt (abuse) POSIX <errno.h> error 
> >numbers (assuming that POSIX has defined them, anywone?).  The above are 
> >guesses (but UNIX like variants like to differ on what they mean :-/).
> 
> Checking ``The Open Group'' didn't turn up any errno.h values.  Anyone 
> got another source?  If none are forth comming, I guess we get to make 
> up our own (aka gdb/signal.h).

They're completely unstandardized, as far as I can tell.  Every
Unix-alike I've used in years has the same numbers for a couple of
standard signals, but Irix and Linux/i386 have vastly different
numberings.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer


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