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Re: [RFC] Turn on -mapp-regs by default on Solaris

From: Eric Botcazou <ebotcazou at libertysurf dot fr>
To: "David S. Miller" <davem at davemloft dot net>
Cc: gcc-patches at gcc dot gnu dot org,rth at redhat dot com,lucier at math dot purdue dot edu
Date: Fri, 22 Apr 2005 08:20:07 +0200
Subject: Re: [RFC] Turn on -mapp-regs by default on Solaris
References: <200504220011.48614.ebotcazou@libertysurf.fr> <200504220214.22390.ebotcazou@libertysurf.fr> <20050421202508.439ed495.davem@davemloft.net>

> Frankly, I think it's enough of a "duh" that it can be put into
> the 3.4 branch as well.

The 3.4 branch is now supposed to be in "deep maintenance mode" (latest 
released almost 6 months ago) so I'm reluctant to make this kind of changes 
at this point.  The GCC manual has this wording "To be fully SVR4 ABI 
compliant at the cost of some performance loss, specify -mno-app-regs. You 
should compile libraries and system software with this option. " and the Sun 
Studio's manual clearly mentions potential incompatibilities with ancient 
softwares, so I'd rather play extra safe.

-mapp-regs can be enabled by the user in all 3.x versions.

-- 
Eric Botcazou

References:
- [RFC] Turn on -mapp-regs by default on Solaris
  - From: Eric Botcazou
- Re: [RFC] Turn on -mapp-regs by default on Solaris
  - From: Eric Botcazou
- Re: [RFC] Turn on -mapp-regs by default on Solaris
  - From: David S. Miller

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