From owner-svn-src-head@freebsd.org Sat Nov 3 00:51:38 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 30DC610E14BD for ; Sat, 3 Nov 2018 00:51:38 +0000 (UTC) (envelope-from marklmi26-fbsd@yahoo.com) Received: from sonic302-4.consmr.mail.bf2.yahoo.com (sonic302-4.consmr.mail.bf2.yahoo.com [74.6.135.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B788A8743F for ; Sat, 3 Nov 2018 00:51:37 +0000 (UTC) (envelope-from marklmi26-fbsd@yahoo.com) X-YMail-OSG: S16Cc_4VM1l9t45Na5OJehDPNEtSSo4oRi2jct77ur7heZCMXCTX4ryfX68NIgR ziVZJZvejmrQnfCO7vCmTg4AWJVVw2fRuFl9s7f0.v6AmTEEtOIE36BabeJjUlaJTjIVG5jpGn36 wzkkwCLJtapaN8Gu5ZjPyq5I44698Ahbqfa_LDdMoFxRjcdSNQ1Kyy.9FnxZiyrk_Mt9c25g3zpy zkPrDQlyg1DxYSby0kGOhdKY9nRV_vemD8liUCy_a4nbgYPBgekRROh0fLTJecLW6G0NO6b8A9s3 MhA1DjMzalIR3tl3i9awUn1WKwbkqVgyX90_Yk.gN754lnH4UztVvF7GbcEarH_H31.Fy1h6n0AX WmvyRCTn_wBgFiLbVvwVARiH5cJIOfZJq1ooO8ibHpOLea4MarhrsAxofCXScbn0TRUK_WKu5sE5 _rMxGmlq07NxPiXuXbrrmRvsSSn_mNkyxsgSjmL1x1MvX7AYOfb.V26rLaNEIcPM2E4Scm68LEZ5 90WlnLcDH4DYD.9PVClDuySrFyJ3Y4KOTDtjs7VCNY9vtqUWF0xafRBNzCikAi9TTJ7fDTT9Gf3k UiJRwMmH.NLB_Mpdih_rMen4a8ntZjkqBc5jKpGUMSROhJo01PWcmZUXOPdlxwqsEEYwK41ZrIRM e2AScKh3ug35h2lZ0cSx6lFTjCgLBQOS3IPJtRZ06TGRH.MzmVKjNyEkSOSLA7Dgy6_MbhrTb0_P 7lDO214ZYOOeKjiIH0gV.RWfeJTaA_rOwmDMPdHYRxQ6eADJg1HyOYO82yNYwqUQb3bIG.S1a3Qz 7xv_VQU8RgkWViBLAWRIsD8kg5cCC7G17uj6LvfLjHRFhUQFIkOr0ODIpanKdORJlRSa7c8yC55J WX6AO1El8sKZVT.DuXIJAAuc2gOWeazcgwAShqBJs.FK2CF46ymKxxeYLOZQbySQKUE3.IF8jZcz YIG.NszBu1ozljvEdTto9bZyeWLzF.SbSQFTrjfLteBguM2iLWl6slFgQIJ3F60wgtNlSwa1ULCX PCavOOBy_A7nxctfYi07Y432ypZYZNsV.E3xwpYxX.EH6As93NsoT Received: from sonic.gate.mail.ne1.yahoo.com by sonic302.consmr.mail.bf2.yahoo.com with HTTP; Sat, 3 Nov 2018 00:51:31 +0000 Received: from c-76-115-7-162.hsd1.or.comcast.net (EHLO [192.168.1.25]) ([76.115.7.162]) by smtp423.mail.bf1.yahoo.com (Oath Hermes SMTP Server) with ESMTPA ID 4c548923b972ede9b83991f98bd938f4; Sat, 03 Nov 2018 00:51:28 +0000 (UTC) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: Re: svn commit: r339876 - head/libexec/rtld-elf From: Mark Millard In-Reply-To: <20181102185014.GP5335@kib.kiev.ua> Date: Fri, 2 Nov 2018 17:51:25 -0700 Cc: svn-src-head@freebsd.org, Alexander Richardson Content-Transfer-Encoding: quoted-printable Message-Id: <34554290-D26E-4FED-A598-4FB3E313EA92@yahoo.com> References: <8E5A5F3A-F1A7-4702-A2F7-65D74CC5B2E5@yahoo.com> <20181102004101.GI5335@kib.kiev.ua> <003A49D7-6E8B-4775-A70B-E0EB44505D4B@yahoo.com> <20181102113827.GM5335@kib.kiev.ua> <7B29A4C8-228D-41CB-B594-98DFA456E9C8@yahoo.com> <20181102155234.GN5335@kib.kiev.ua> <20181102185014.GP5335@kib.kiev.ua> To: Konstantin Belousov X-Mailer: Apple Mail (2.3445.9.1) X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Nov 2018 00:51:38 -0000 On 2018-Nov-2, at 11:50 AM, Konstantin Belousov = wrote: > On Fri, Nov 02, 2018 at 10:38:08AM -0700, Mark Millard wrote: >> . . . >=20 > There seems to be an issue with the direct execution mode on ppc. > Even otherwise working ld-elf.so.1 segfaults if I try to use it as > standalone binary. >=20 > But if I specify patched ld-elf.so.1 as the interpreter for some = program, > using 'cc -Wl,-I,/ld-elf.so.1' it works. So I see there two = bugs, > one is regression due to textsize calculation, which should be fixed = by > my patch. Another is the direct exec problem. My head -r339076 based powerpc64 and armv7 contexts also fail for: # /libexec/ld-elf.so.1 /bin/ls The armv7 (a Cortext-A7 context) is interestingly different in how it fails: # /libexec/ld-elf.so.1 /bin/ls ld-elf.so.1: /bin/ls: mmap of entire address space failed: Cannot = allocate memory My aarch64 context (a Cortext-A53 context) had no problem. (All 3 examples are without any of the the recent updates or patches to ld-elf.so.1 source code.) =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)