From owner-freebsd-dtrace@freebsd.org Thu Dec 15 22:57:08 2016 Return-Path: Delivered-To: freebsd-dtrace@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id CE9F0C820E5 for ; Thu, 15 Dec 2016 22:57:08 +0000 (UTC) (envelope-from gnn@neville-neil.com) Received: from smtp.hungerhost.com (smtp.hungerhost.com [216.38.51.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id A7E8D3E5; Thu, 15 Dec 2016 22:57:08 +0000 (UTC) (envelope-from gnn@neville-neil.com) Received: from pool-108-46-177-117.nycmny.fios.verizon.net ([108.46.177.117]:60615 helo=[192.168.1.4]) by vps.hungerhost.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1cHexW-0003l9-Q0; Thu, 15 Dec 2016 17:57:06 -0500 From: "George Neville-Neil" To: "Hiroki Sato" Cc: rm@joyent.com, freebsd-dtrace@freebsd.org Subject: Re: malformed symbol Date: Thu, 15 Dec 2016 17:57:05 -0500 Message-ID: <0921189E-481D-4F8D-BAEA-6B656EE5ECFB@neville-neil.com> In-Reply-To: <20161215.145424.2283983185637049413.hrs@allbsd.org> References: <20161215.075124.1459885758696268380.hrs@allbsd.org> <6b0842f5-46e8-e90e-0cc6-ec0cbe74669a@joyent.com> <20161215.145424.2283983185637049413.hrs@allbsd.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=_MailMate_7844CD1C-DEA1-4736-B262-9469CD1E0B1B_="; micalg=pgp-sha1; protocol="application/pgp-signature" X-Mailer: MailMate (1.9.6r5310) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.hungerhost.com X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - neville-neil.com X-Get-Message-Sender-Via: vps.hungerhost.com: authenticated_id: gnn@neville-neil.com X-Authenticated-Sender: vps.hungerhost.com: gnn@neville-neil.com X-Source: X-Source-Args: X-Source-Dir: X-BeenThere: freebsd-dtrace@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "A discussion list for developers working on DTrace in FreeBSD." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Dec 2016 22:57:08 -0000 This is an OpenPGP/MIME signed message (RFC 3156 and 4880). --=_MailMate_7844CD1C-DEA1-4736-B262-9469CD1E0B1B_= Content-Type: text/plain; markup=markdown On 15 Dec 2016, at 0:54, Hiroki Sato wrote: > Robert Mustacchi wrote > in <6b0842f5-46e8-e90e-0cc6-ec0cbe74669a@joyent.com>: > > rm> On 12/14/16 14:51 , Hiroki Sato wrote: > rm> > This was reproducible on 11.x and 12.x, not on 10.x. Could anyone > rm> > try this and let me know if this is reproducible on your 11.x or 12.x > rm> > box? I guess this is a regression of symbol rewrite routine such as > rm> > s/__/-/ in the dtrace utility while I have not investigated the > rm> > details yet. Or am I missing something here? > rm> > rm> We've seen something similar on illumos that corresponds with newer > rm> binutils versions (2.26). See https://www.illumos.org/issues/6653. > > Thank you for the info. Certainly passing -no-integrated-as flag to > clang to make it use an old gas avoids this issue. Simply doing > objcopy sample.o before "dtrace -G" is another workaround. > Can you open a PR for this one, so we can track it? Thanks, George --=_MailMate_7844CD1C-DEA1-4736-B262-9469CD1E0B1B_= Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iEYEARECAAYFAlhTH8IACgkQYdh2wUQKM9Kd0gCgoEMl57mebuSFC7OeCu5+yxqb 13EAoOUYa4W2J2FgIhGDbiYvk70DmXC+ =DXci -----END PGP SIGNATURE----- --=_MailMate_7844CD1C-DEA1-4736-B262-9469CD1E0B1B_=--