Re: [PATCH] nios2-linux: add missing cpp specs

[Sandra Loosemore <sandra at codesourcery dot com>]

On 05/29/2015 11:36 AM, Mike Frysinger wrote:
> On 29 May 2015 08:44, Sandra Loosemore wrote:
> > On 05/27/2015 10:00 AM, Mike Frysinger wrote:
> > > Define CPP_SPEC for nios2 linux targets so that -posix & -pthread work
> > > like on all other linux targets.
> > >
> > > 2015-05-27  Mike Frysinger  <vapier@gentoo.org>
> > >
> > > 	* config/nios2/linux.h (CPP_SPEC): Define.
> >
> > I see that -posix is not documented at all in invoke.texi and -pthread
> > is documented only for RS6000 and Solaris (which is not Linux).  What,
> > exactly, are these options supposed to do on "all other linux targets"?
> >    If these options are supposed to be generic to all Linux targets,
> > can't they be handled in some common way instead of duplicating the
> > CPP_SPEC code in all the individual back ends?
>
> please see my other threads/patches

(Sorry, I am a few days behind in mailing list traffic, was just trying 
to respond to the review request that was CC'ed to me directly.)

Do you mean this one?

https://gcc.gnu.org/ml/gcc-patches/2015-05/msg02708.html

That addresses my concern about not duplicating this in every back end, 
but I still don't see any documentation and don't really understand what 
these flags are supposed to do or why I might need to add them to my 
command line.  Taking off my nios2 maintainer hat and putting on the 
docs maintainer one instead, I think proper documentation for these 
options is a requirement here....

-Sandra