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Re: PPC -mlongcall, take two

From: Zack Weinberg <zack at codesourcery dot com>
To: Stan Shebs <shebs at apple dot com>
Cc: David Edelsohn <dje at watson dot ibm dot com>, gcc-patches at gcc dot gnu dot org
Date: Fri, 10 May 2002 21:19:43 -0700
Subject: Re: PPC -mlongcall, take two
References: <20020510035830.GA5248@codesourcery.com> <200205101835.OAA27280@makai.watson.ibm.com> <3CDC47E5.F06ED413@apple.com>

On Fri, May 10, 2002 at 03:21:25PM -0700, Stan Shebs wrote:
> David Edelsohn wrote:
> > 
> >         Why do you need to create the new rs6000-c.c file instead of using
> > rs6000.c?
> 
> It's how we do code that is both C- and target-specific.
> ls config/*/*-c.c to see similar examples.

To expand on this a little: Pragma handlers need to call c_lex(), and
the code to set them up needs to call cpp_register_pragma().  If this
is done in rs6000.c, the Ada, Fortran, and Java front ends will all
fail to link.

We decided we didn't want to make more routines that the non-C front
ends had to provide stub versions of.

zw

References:
- PPC -mlongcall, take two
  - From: Zack Weinberg
- Re: PPC -mlongcall, take two
  - From: David Edelsohn
- Re: PPC -mlongcall, take two
  - From: Stan Shebs

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