This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: Switching the default for -fabi-version

From: "Zack Weinberg" <zack at codesourcery dot com>
To: Florian Weimer <fw at deneb dot enyo dot de>
Cc: Andreas Jaeger <aj at suse dot de>, Mark Mitchell <mark at codesourcery dot com>, Richard Guenther <rguenth at tat dot physik dot uni-tuebingen dot de>, Joe Buck <jbuck at synopsys dot com>, gcc at gcc dot gnu dot org
Date: Sun, 26 Oct 2003 09:55:35 -0800
Subject: Re: Switching the default for -fabi-version
References: <Pine.LNX.4.44.0310220954510.1646-100000@bellatrix.tat.physik.uni-tuebingen.de><1066811338.4002.6.camel@minax.codesourcery.com><20031026144839.GA9147@deneb.enyo.de> <u8ptgkyrgx.fsf@gromit.moeb><20031026171029.GA11550@deneb.enyo.de>

Florian Weimer <fw@deneb.enyo.de> writes:

> The C++ standard library used to use xaddl by default, which isn't
> available on 386.
>
> It was fixed in PR 7926, so it's up to the distributors if they want
> to change the ABI to be 386-compatible or not, I guess.

If I understand the situation correctly, there is an unavoidable
choice between being backward compatible with the i386, and being
genuinely thread safe on a multiprocessor machine.

Personally, I think the latter is preferable.

zw

References:
- Re: Switching the default for -fabi-version
  - From: Richard Guenther
- Re: Switching the default for -fabi-version
  - From: Mark Mitchell
- Re: Switching the default for -fabi-version
  - From: Florian Weimer
- Re: Switching the default for -fabi-version
  - From: Andreas Jaeger
- Re: Switching the default for -fabi-version
  - From: Florian Weimer

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]