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Date:      Sat, 24 Feb 2018 17:01:59 -0800
From:      Conrad Meyer <cem@freebsd.org>
To:        Alan Somers <asomers@freebsd.org>
Cc:        src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org,  svn-src-head@freebsd.org
Subject:   Re: svn commit: r329722 - head/cddl/usr.sbin/zdb
Message-ID:  <CAG6CVpWMDzfTNdtznb1yDBaXRMtwJdcR4DNFh3eJSATTDxM1-Q@mail.gmail.com>
In-Reply-To: <CAOtMX2j%2BNhpUtWKLR9FeMbJ59WaTEKxNzASVr8BLkMdH44C7wQ@mail.gmail.com>
References:  <201802211551.w1LFpn57042314@repo.freebsd.org> <CAOtMX2jRP-him_s6_s6pdGgRzJFwHrPRLNo=1zMcvq5hqaqObg@mail.gmail.com> <CAG6CVpXLKUMmfN6rZLsDq7peFWb51GiayS_UMshBNF4kCF=53w@mail.gmail.com> <CAOtMX2j%2BNhpUtWKLR9FeMbJ59WaTEKxNzASVr8BLkMdH44C7wQ@mail.gmail.com>

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I did not see the array bounds error, but perhaps my build failed
before it got to that point.  Thanks for taking a look at it.

Conrad

On Sat, Feb 24, 2018 at 4:57 PM, Alan Somers <asomers@freebsd.org> wrote:
> On Sat, Feb 24, 2018 at 5:19 PM, Conrad Meyer <cem@freebsd.org> wrote:
>>
>> On Wed, Feb 21, 2018 at 8:40 PM, Alan Somers <asomers@freebsd.org> wrote:
>> > On Wed, Feb 21, 2018 at 8:51 AM, Alan Somers <asomers@freebsd.org>
>> > wrote:
>> >>
>> >> Author: asomers
>> >> Date: Wed Feb 21 15:51:48 2018
>> >> New Revision: 329722
>> >> URL: https://svnweb.freebsd.org/changeset/base/329722
>> >>
>> >> Log:
>> >>   zdb: raise WARNS from 0 to 2
>> >>
>> >>   This has only been possible since r329694 and r329508
>> >>
>> >>   MFC after:    3 weeks
>> >>   X-MFC-With:   329694
>> >>   X-MFC-With:   329508
>> >>   Sponsored by: Spectra Logic
>> >>
>> >> Modified:
>> >>   head/cddl/usr.sbin/zdb/Makefile
>> >>
>> >
>> > Looks like I broke the build with GCC-6.
>>
>> Yep, I can confirm it's broken.  I don't see a flag we can just turn
>> off for the GCC warning, though, so the solution might have to be
>> CFLAGS.gcc += -Wno-error.
>>
>> > I'll fix it, as soon as I can get
>> > the toolchain setup.
>>
>> The easy way is just:
>>
>> $ pkg install amd64-xtoolchain-gcc
>> $ make -sj$(sysctl -n hw.ncpu) buildworld CROSS_TOOLCHAIN=amd64-gcc
>>
>> Thanks,
>> Conrad
>
>
>
> There seem to be 3 problems: CTASSERT, assfail, and array bounds.  I've
> already committed a fix for CTASSERT and I'm testing an assfail fix now.
> The array bounds problem is harder, though.  The logic is complicated, but I
> think it's sound.  I don't know why GCC is complaining, unless maybe it
> thinks that an enum type is signed.  If I can't find a good solution, I'll
> set -Wno-error as you suggest.
>
> -Alan
>



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