Message-ID: <001901c3388e$82ae0520$0100a8c0@acp42g>
From: "Andrew Cottrell" <acottrel AT ihug DOT com DOT au>
To: <djgpp-workers AT delorie DOT com>
References: <200306201334 DOT h5KDYMWU012441 AT speedy DOT ludd DOT luth DOT se> <000e01c337aa$7b238800$0100a8c0 AT acp42g> <3EF3E113 DOT 1C8C9C2B AT yahoo DOT com> <9743-Sat21Jun2003123351+0300-eliz AT elta DOT co DOT il> <3EF449C0 DOT 8C8A0C61 AT yahoo DOT com> <3791-Sun22Jun2003063027+0300-eliz AT elta DOT co DOT il> <3EF53044 DOT CDEA5BA1 AT yahoo DOT com>
Subject: Re: LIBM patch for GCC 3.3 - math changes
Date: Sun, 22 Jun 2003 17:18:41 +1000
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Reply-To: djgpp-workers AT delorie DOT com

Guys,

Can you please change the subject on the next response as this has nothing
to do with the LIBM patch.

Thanks,
Andrew

----- Original Message ----- 
From: "CBFalconer" <cbfalconer AT yahoo DOT com>
To: <djgpp-workers AT delorie DOT com>
Sent: Sunday, June 22, 2003 2:27 PM
Subject: Re: LIBM patch for GCC 3.3 - math changes


> Eli Zaretskii wrote:
> > > From: CBFalconer <cbfalconer AT yahoo DOT com>
> > >
> > > BTW I have heard nothing about the use of hooks/malldbg with
> > > memalign etc. I referred to in another thread.
> >
> > I think we don't need any more hooks beyond those in malloc and
> > friends.
>
> It may be necessary to put them in if only for consistency.  The
> end result of memalign will be the equivalent of a malloc, so if
> we want to catch arena errors etc. as early as possible the hooks
> will need to be there.  The arena dump (mallocmap) and data from
> mallinfo will naturally include the effects from memalign.  The
> hooks could ignore the alignment parameter easily and just use the
> actual malloc hooks - the only penalty I can see is that the user
> may be dumbfounded as to why it failed (i.e. non-power-of-2
> alignment parameter, or no suitable free space left).
>
> The routine is a real pain.  I think memalign should also fail for
> alignment parameter < ALIGN value (i.e. 8 at present).
>
> -- 
> Chuck F (cbfalconer AT yahoo DOT com) (cbfalconer AT worldnet DOT att DOT net)
>    Available for consulting/temporary embedded and systems.
>    <http://cbfalconer.home.att.net>  USE worldnet address!
>
>
>