From: Tamar Christina <Tamar.Christina@arm.com>
To: Joseph Myers <joseph@codesourcery.com>,
Andreas Schwab <schwab@linux-m68k.org>
Cc: Carlos O'Donell <carlos@redhat.com>,
Florian Weimer <fweimer@redhat.com>,
GNU C Library <libc-alpha@sourceware.org>, nd <nd@arm.com>,
Bin Cheng <Bin.Cheng@arm.com>
Subject: RE: [PATCH v4] Fix -Os related build and test failures.
Date: Tue, 01 Nov 2016 15:58:00 -0000 [thread overview]
Message-ID: <VI1PR0801MB2031CAB9471EC9642A9C0DECFFA10@VI1PR0801MB2031.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <alpine.DEB.2.20.1611011111500.28612@digraph.polyomino.org.uk>
This also breaks ARM and AArch64,
Would it be worth reverting the commit until this is fixed?
It's currently blocking trunk builds.
Kind Regards,
Tamar
> -----Original Message-----
> From: libc-alpha-owner@sourceware.org [mailto:libc-alpha-
> owner@sourceware.org] On Behalf Of Joseph Myers
> Sent: 01 November 2016 11:13
> To: Andreas Schwab
> Cc: Carlos O'Donell; Florian Weimer; GNU C Library
> Subject: Re: [PATCH v4] Fix -Os related build and test failures.
>
> On Tue, 1 Nov 2016, Andreas Schwab wrote:
>
> > On Okt 30 2016, Carlos O'Donell <carlos@redhat.com> wrote:
> >
> > > diff --git a/resolv/res_send.c b/resolv/res_send.c index
> > > 6d46bb2..4ec8c1a 100644
> > > --- a/resolv/res_send.c
> > > +++ b/resolv/res_send.c
> > > @@ -664,7 +664,7 @@ send_vc(res_state statp,
> > > a false-positive.
> > > */
> > > DIAG_PUSH_NEEDS_COMMENT;
> > > - DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> > > + DIAG_IGNORE_Os_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> > > int resplen;
> > > DIAG_POP_NEEDS_COMMENT;
> > > struct iovec iov[4];
> >
> > That breaks powerpc and s390.
> >
> > res_send.c: In function 'send_vc':
> > res_send.c:668:6: error: 'resplen' may be used uninitialized in this function
> [-Werror=maybe-uninitialized]
> > int resplen;
> > ^~~~~~~
>
> And the other change to the same file introduces a new use of
> DIAG_IGNORE_NEEDS_COMMENT with a comment that only mentions -Os.
> Was the intent to edit the latter use to be
> DIAG_IGNORE_Os_NEEDS_COMMENT, with the former one edited by
> mistake instead?
>
> --
> Joseph S. Myers
> joseph@codesourcery.com
next prev parent reply other threads:[~2016-11-01 15:58 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-28 4:48 [PATCH] Fix -Os related -Werror failures Carlos O'Donell
2016-10-28 6:25 ` Andreas Schwab
2016-10-28 6:32 ` Florian Weimer
2016-10-28 6:44 ` Jeff Law
2016-10-28 8:12 ` Arnd Bergmann
2016-10-28 8:17 ` Andrew Pinski
2016-10-28 13:28 ` Jeff Law
2016-10-28 20:10 ` Paul Eggert
2016-10-29 3:03 ` Jeff Law
2016-10-30 4:25 ` Paul Eggert
2016-10-28 12:09 ` Carlos O'Donell
2016-10-28 12:43 ` Florian Weimer
2016-10-28 13:04 ` Joseph Myers
2016-10-28 13:07 ` Carlos O'Donell
2016-10-28 12:49 ` Joseph Myers
2016-10-28 12:55 ` Florian Weimer
2016-10-28 13:18 ` Carlos O'Donell
2016-10-28 13:58 ` [PATCH v2] Fix -Os related build and test failures Carlos O'Donell
2016-10-28 14:17 ` Joseph Myers
2016-10-29 2:59 ` [PATCH v3] " Carlos O'Donell
2016-10-29 3:26 ` Carlos O'Donell
2016-10-29 17:35 ` Joseph Myers
2016-10-30 3:51 ` [PATCH v4] " Carlos O'Donell
2016-10-31 8:33 ` Andreas Schwab
2016-10-31 9:16 ` Carlos O'Donell
2016-10-31 9:22 ` Florian Weimer
2016-10-31 12:56 ` David Miller
2016-10-31 19:56 ` Carlos O'Donell
2016-11-01 22:59 ` Joseph Myers
2016-11-02 12:52 ` Carlos O'Donell
2016-11-01 9:17 ` Andreas Schwab
2016-11-01 11:13 ` Joseph Myers
2016-11-01 15:58 ` Tamar Christina [this message]
2016-11-01 16:06 ` David Miller
2016-11-01 16:15 ` Tamar Christina
2016-11-02 11:53 ` Carlos O'Donell
2016-11-02 17:03 ` Carlos O'Donell
2016-11-02 13:22 ` Carlos O'Donell
2016-10-31 18:38 ` [PATCH v3] " Steve Ellcey
2016-10-31 19:50 ` Carlos O'Donell
2016-10-31 19:57 ` Steve Ellcey
2016-10-31 20:50 ` Carlos O'Donell
2016-10-31 21:00 ` Steve Ellcey
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