From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Daniel Colascione Newsgroups: gmane.comp.lib.glibc.alpha,gmane.emacs.devel Subject: Re: Removal of unexec support from glibc malloc Date: Mon, 18 Jan 2016 11:55:27 -0800 Message-ID: <569D432F.9070308@dancol.org> References: <569CDB81.6040600@redhat.com> <569D3BE0.6050103@cs.ucla.edu> <569D4157.7050408@dancol.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="3Sa1ujPNLND3JF7vJfTseB1baMJ6LqiT4" X-Trace: ger.gmane.org 1453146941 14374 80.91.229.3 (18 Jan 2016 19:55:41 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 18 Jan 2016 19:55:41 +0000 (UTC) Cc: emacs-devel@gnu.org, GNU C Library To: Zack Weinberg Original-X-From: libc-alpha-return-66363-glibc-alpha=m.gmane.org@sourceware.org Mon Jan 18 20:55:40 2016 Return-path: Envelope-to: glibc-alpha@plane.gmane.org Original-Received: from server1.sourceware.org ([209.132.180.131] helo=sourceware.org) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aLFts-0007dx-5h for glibc-alpha@plane.gmane.org; Mon, 18 Jan 2016 20:55:40 +0100 DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:references:cc:from:message-id:date :mime-version:in-reply-to:content-type; q=dns; s=default; b=m+sR eK2tUgEhn626MDhMQUTtzwk2/eraTNqM789Qjz3xORYOL5fQg1vfnTcRLaCBVuRr LBDvxIJ1ZyehpUsRgrinU5ZCBk6SgGSGrWCWcW570mQFx0U+6nXhaStZnd7fM6sx xFgr+5dhSO4qQD3Ebb5ww+OorfwKvywhyreapTE= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:references:cc:from:message-id:date :mime-version:in-reply-to:content-type; s=default; bh=ltWK9v9fxy zs6rMggh+NrpaUJZ4=; b=cLXmhuGWrO0pLn5thraY1SCK5dnLBEU+f0zE+PFNql DrS/BR8/qfCDUsdM5J7o22Yi3BntoNhsxXJs/JGMXiexEW20hGVFCzS6jAod+W5x PontMoi/ZjjorR3jWdk/oQrYzeTPoic/CrA+tuYdpyiUc0Hdu3cqpVTiVW/unguq 0= Original-Received: (qmail 86138 invoked by alias); 18 Jan 2016 19:55:35 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Original-Sender: libc-alpha-owner@sourceware.org Original-Received: (qmail 86127 invoked by uid 89); 18 Jan 2016 19:55:35 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.2 spammy=zack, Zack, cooperate X-HELO: dancol.org User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 In-Reply-To: Xref: news.gmane.org gmane.comp.lib.glibc.alpha:58646 gmane.emacs.devel:198281 Archived-At: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --3Sa1ujPNLND3JF7vJfTseB1baMJ6LqiT4 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 01/18/2016 11:54 AM, Zack Weinberg wrote: > On Mon, Jan 18, 2016 at 2:47 PM, Daniel Colascione = wrote: >> >> As long as the ABI support is there, we can keep using the "separate >> malloc implementation" even if glibc doesn't cooperate by providing >> convenient headers to access it. >=20 > Clarification: it will not be possible to link new executables against > the symbols in question. (This is what a "compat symbol" in glibc is - > available only to existing binaries, not to new invocations of ld.) Oh, with a linker script or other hackery, I'm sure I could make it available to new invocations of ld. It's just bytes. --3Sa1ujPNLND3JF7vJfTseB1baMJ6LqiT4 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJWnUMvAAoJEN4WImmbpWBlNJ8QAJ5+wvyIrz1lQ4Il+OzWdPEP WX8Da1B02vE3vJZ68/3OH/RPU0nWTI0Z6uhQTvRmG1ZmNq/MWO2AdEACXFdz+34O pxBN/rheM7HD9kM924SMTcm3yERoKbdkimQRIqPyiforZvsiUsBraKYLU0jRiPfx CSBmuAcVtmDcwvh7X5m2s0C4LDc3fe/m57s3Pqak79TS7fMpld9x7looRNJiyUjX 9zB8YibUwCdUovweM/1OVsVCjrefG/RiFbZGRazB7lS+vl/EWIyD6jL36OVVzD6U 8irRdmth1Bl914OWNBc+oDuALpjYW3MqdCahFkHcLTbKnJNxmNay3VIUWYtnUlAd Tc7GmVHBSlee0xaOHQCtZvgPUwLuv+Dgyq27iLOnvTRabapC+lCfA0AEO9g0u8jb eoY1eyhpsMOq9OFlG4+eWgLCEtFTxayt+zGbd970sgtwQCPOXyL+aWDliTTOHBaK rbb3oDkVt3u4xNwWptfsKvgb/s9+tThGgmXLySzBbWEYJM0BKe4IGUd9NBOJWAeN 3MAHhldBGaqzQo2/2Xf3KjUAexeVWVeCvgIyTasv6QP+MD2OcGfTjmrPZHMpO4zV +wJvj03JZmWAqQ77E13gGdMXyvSwiXKomHW7AWtUoNN3kIcwBa05vrRdCoGhO5Q/ mkzydLtjUVAAidhuITWy =nT1u -----END PGP SIGNATURE----- --3Sa1ujPNLND3JF7vJfTseB1baMJ6LqiT4--