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Date: Sun, 24 May 2015 17:39:21 +0300
From: "Eli Zaretskii (eliz AT gnu DOT org)" <djgpp AT delorie DOT com>
Subject: Re: New GDB versions and DJGPP (Was: ANNOUNCE: DJGPP 2.05 beta 1)
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> Date: Sun, 24 May 2015 14:48:32 +0200
> From: "Juan Manuel Guerrero (juan DOT guerrero AT gmx DOT de)" <djgpp AT delorie DOT com>
> 
> > Can you try the patch below?  If it fixes the problem, I will push it.
> >
> > diff --git a/gdb/go32-nat.c b/gdb/go32-nat.c
> > index f3966cd..852473b 100644
> > --- a/gdb/go32-nat.c
> > +++ b/gdb/go32-nat.c
> > @@ -587,6 +587,13 @@
> >     else
> >       res = read_child (memaddr, readbuf, len);
> >
> > +  /* read_child and write_child return zero on success, non-zero on
> > +     failure; adjust the result value to that.  */
> > +  if (res == 0)
> > +    res = len;
> > +  else
> > +    res = -1;
> > +
> >     if (res<= 0)
> >       return TARGET_XFER_E_IO;
> >
> 
> I have tried the patch with gdb 7.9.1 and djgpp support seems to work again.
> Neitherless sometimes backtrace and finish behave strange.  Please give me
> some time more to check.  Especially with djgpp 2.05.

Thanks for testing.

Is there a reason to withhold this patch?  The issues you describe are
probably additional problems, unrelated to this one.

But if you'd like me to wait, I will.