From owner-freebsd-hackers@FreeBSD.ORG  Tue May 19 19:32:39 2015
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 90C81DA7
 for <freebsd-hackers@freebsd.org>; Tue, 19 May 2015 19:32:39 +0000 (UTC)
Received: from mail-qk0-x231.google.com (mail-qk0-x231.google.com
 [IPv6:2607:f8b0:400d:c09::231])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 4ABA71B88
 for <freebsd-hackers@freebsd.org>; Tue, 19 May 2015 19:32:39 +0000 (UTC)
Received: by qkdn188 with SMTP id n188so12406696qkd.2
 for <freebsd-hackers@freebsd.org>; Tue, 19 May 2015 12:32:38 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:in-reply-to:references:date:message-id:subject:from:to
 :cc:content-type;
 bh=8nKC/azG2vitKFlCEw4lXUCYfRUBjYRm394zgHn1Hoc=;
 b=mEqtOnuBM/GGJaZXJdYSFejKdGEVJeo4wi7a0PmQ5MMa0Mwpo33rJlM6UCzIYxM6l4
 Vzhv84bWwPKOsX+89BjRhKhWOqMcRa2PuNZ6BNUXsYclMUDSdlIF0TavOhn44e7q+3XM
 280JPK21R43aAiakn9YDa9rrUKK37LvAMNnvmjfvxRc2aJWSXMZgf7QcWc0gRjII3AMp
 q/qcZeBeO2Bw0QSTa7NptddFoRkBZt7IYHcBg7WirwjKNUXX6+5oLgf8rZIJUstq40ki
 iZXGCOCQOEuE1HqhvhXk4xz/N17mtdSwMkcs0btg/8oa4jX9xGAYPWYVLcEPYsFEG/2V
 /vRQ==
MIME-Version: 1.0
X-Received: by 10.140.29.55 with SMTP id a52mr37093535qga.25.1432063958355;
 Tue, 19 May 2015 12:32:38 -0700 (PDT)
Received: by 10.140.98.73 with HTTP; Tue, 19 May 2015 12:32:38 -0700 (PDT)
In-Reply-To: <CAGHfRMC10JJs7f9yzmNpeHNN8sM9ZFci1gpvqwqhvcGSQS4RXA@mail.gmail.com>
References: <554E41EE.2010202@ignoranthack.me>
 <554E4BD1.1030802@ignoranthack.me>
 <406EAA27-D825-408B-985E-DC3FFE746473@frob.org>
 <554E5263.8010205@ignoranthack.me> <20150509190347.10e1e2c2@kan>
 <CAGHfRMAGTF0oh+R0kDxyx7PWSPfcTyZT-cMogF_LrV5pR2J4-w@mail.gmail.com>
 <CAGHfRMC10JJs7f9yzmNpeHNN8sM9ZFci1gpvqwqhvcGSQS4RXA@mail.gmail.com>
Date: Tue, 19 May 2015 12:32:38 -0700
Message-ID: <CAGHfRMDWpPdqmGObTGuOT_FMQodbqbqW-gkhjMgca-pjS+a2Jg@mail.gmail.com>
Subject: Re: How to get anything useful out of kgdb?
From: NGie Cooper <yaneurabeya@gmail.com>
To: Alexander Kabaev <kabaev@gmail.com>
Cc: Sean Bruno <sbruno@ignoranthack.me>, 
 "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>
Content-Type: text/plain; charset=UTF-8
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 19 May 2015 19:32:39 -0000

On Mon, May 18, 2015 at 5:29 PM, NGie Cooper <yaneurabeya@gmail.com> wrote:

> As a sidenote, this has been broken for over a decade:
> https://svnweb.freebsd.org/base?view=revision&revision=127204 :(...

-O is synonymous with -O2 (both on clang and gcc) :(... which means
that the if/else statement has been bogus with clang for several years
now. Argh... -O0 is what we've needed...