On Wed, May 16, 2012 at 03:29:12PM +0200, Richard Guenther wrote:
> On Wed, May 16, 2012 at 3:18 PM, Basile Starynkevitch
> <bas...@starynkevitch.net> wrote:
> > On Wed, May 16, 2012 at 03:02:39PM +0200, Richard Guenther wrote:
> >> On Wed, May 16, 2012 at 2:46 PM, Basile Starynkevitch
> >> <bas...@starynkevitch.net> wrote:
> >> > Hello All,
> >> >
> >> > I am pinging the patch 
> >> > http://gcc.gnu.org/ml/gcc-patches/2012-02/msg00474.html
> >> > below for trunk svn 187587
> >
> > --- gcc/toplev.c        (revision 187587)
> > +++ gcc/toplev.c        (working copy)
> > @@ -229,6 +229,11 @@ announce_function (tree decl)
> >  {
> >   if (!quiet_flag)
> >     {
> > +      static long count;
> > +      count++;
> > +      if (count % 8 == 0)
> > +        putc('\n', stderr);
> > +
> >       if (rtl_dump_and_exit)
> >        fprintf (stderr, "%s ",
> >                 identifier_to_locale (IDENTIFIER_POINTER (DECL_NAME 
> > (decl))));
> >
> >
> >> So - why?  I like it the way it is.
> >
> > Because, as I explained in  
> > http://gcc.gnu.org/ml/gcc-patches/2012-02/msg00474.html without that patch
> > you have arbitrarily long output lines, and that is unpleasant, in 
> > particular when running under gdb
> > or under emacs (also, there may be buffering issues: if GCC misbehave, 
> > stderr might not be flushed
> > often enough...)
> 
> stderr is unbuffered
> 
> > The announce_function is quite rarely really used (because quiet_flag is 
> > almost always true),
> > and it is used mostly to debug GCC (or plugins), and in that case having 
> > not too large output
> > is quite useful in practice. The patch above is quick & dirty but seems 
> > enough.
> > Do you want me to add a comment like /* Hack to avoid very large output 
> > lines.  */ before?
> 
> No, I want the large line to stay as-is.  It's pleasant for me.


Do you have any hints or tricks to have this work well when running cc1 under 
emacs 
(eg in a *shell* or *gud-cc1* Emacs buffer)?

Without that patch displaying happen too late (and eats a lot of Emacs CPU)!!

Regards

-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
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*** opinions {are only mines, sont seulement les miennes} ***

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