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From: Mark Kettenis <mark.kettenis@xs4all.nl>
To: jan.kratochvil@redhat.com
Cc: gdb-patches@sourceware.org
Subject: Re: [patch 1/3] Make obconcat use stdarg
Date: Fri, 30 Apr 2010 19:09:00 -0000	[thread overview]
Message-ID: <201004301908.o3UJ8mGf006742@glazunov.sibelius.xs4all.nl> (raw)
In-Reply-To: <20100430181605.GA19190@host0.dyn.jankratochvil.net> (message	from Jan Kratochvil on Fri, 30 Apr 2010 20:16:05 +0200)

> Date: Fri, 30 Apr 2010 20:16:05 +0200
> From: Jan Kratochvil <jan.kratochvil@redhat.com>
> 
> Hi,
> 
> __attribute__ ((sentinel)) availability for gcc >= 4.0 I have copied from
> <glib-2.0/glib/gmacros.h>.  It roughly matches the GCC ChangeLog dates.

The OpenBSD system compile, which is based on GCC 3.3.5, already has
the sentinel attribute.

> No regressions on {x86_64,x86_64-m32,i686}-fedora12-linux-gnu for the whole
> patchset.

I'm afraid you'll need an explicit cast for the NULLs used as the
sentinel value, otherwise platforms that

  #define NULL 0L

will generate warnings like:

  sentinel.c: In function 'foo':
  sentinel.c:8: warning: missing sentinel in function call

and with -Werror, that's not a good :(.


  parent reply	other threads:[~2010-04-30 19:09 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-30 18:16 Jan Kratochvil
2010-04-30 18:38 ` Tom Tromey
2010-04-30 19:07   ` Jan Kratochvil
2010-04-30 19:09 ` Mark Kettenis [this message]
2010-04-30 22:18   ` `sentinel' gcc-3.x/OpenBSD compat. [Re: [patch 1/3] Make obconcat use stdarg] Jan Kratochvil
2010-05-01  0:10     ` Pedro Alves
2010-05-02 12:04       ` [patch] ATTR_* -> ATTRIBUTE_* unification [Re: `sentinel' gcc-3.x/OpenBSD compat.] Jan Kratochvil
2010-05-02 15:33         ` Pedro Alves
2010-05-02 21:37           ` Jan Kratochvil
2010-05-02 23:20             ` [patch] ATTR_NORETURN -> ATTRIBUTE_NORETURN unification [Re: [patch] ATTR_* -> ATTRIBUTE_* unification] Jan Kratochvil
2010-05-02 23:42               ` Pedro Alves
2010-05-02 23:53                 ` Jan Kratochvil
2010-05-03  7:18                   ` Pierre Muller
2010-05-03  7:44                     ` Jan Kratochvil
2010-05-04  6:34                       ` Pierre Muller
2010-05-04 15:28                         ` Joel Brobecker
     [not found]                   ` <6652.26431233368$1272871093@news.gmane.org>
2010-05-03 18:15                     ` Tom Tromey
2010-05-01  6:07     ` `sentinel' gcc-3.x/OpenBSD compat. [Re: [patch 1/3] Make obconcat use stdarg] Eli Zaretskii
2010-05-02  6:49       ` Jan Kratochvil
2010-05-01  8:53     ` Mark Kettenis
2010-05-07 16:58       ` Jan Kratochvil
2010-05-07 22:34         ` Tom Tromey
2010-05-08  4:59           ` Jan Kratochvil
2010-05-02  7:52   ` [patch 1/3] Make obconcat use stdarg Jan Kratochvil
2010-05-03 18:25     ` Tom Tromey
2010-05-03 20:19     ` Mark Kettenis
2010-05-03 21:00       ` Pedro Alves
2010-05-04 21:03         ` Mark Kettenis
2010-05-07 14:31           ` Jan Kratochvil
2010-05-07 14:36             ` Pedro Alves
2010-05-07 14:44               ` Jan Kratochvil
2010-05-07 14:44             ` Mark Kettenis

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