From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/7318 Path: news.gmane.org!not-for-mail From: Jean-Marc Pigeon Newsgroups: gmane.linux.lib.musl.general Subject: Re: perl native musl, ldd Date: Thu, 02 Apr 2015 14:17:36 -0400 Message-ID: <551D87C0.4010409@safe.ca> References: <551D65EF.9030802@safe.ca> <20150402161837.GA6817@brightrain.aerifal.cx> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms020606050306030104050906" X-Trace: ger.gmane.org 1427998680 17242 80.91.229.3 (2 Apr 2015 18:18:00 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 2 Apr 2015 18:18:00 +0000 (UTC) To: musl@lists.openwall.com Original-X-From: musl-return-7331-gllmg-musl=m.gmane.org@lists.openwall.com Thu Apr 02 20:17:52 2015 Return-path: Envelope-to: gllmg-musl@m.gmane.org Original-Received: from mother.openwall.net ([195.42.179.200]) by plane.gmane.org with smtp (Exim 4.69) (envelope-from ) id 1Ydjge-00074T-DH for gllmg-musl@m.gmane.org; Thu, 02 Apr 2015 20:17:52 +0200 Original-Received: (qmail 32603 invoked by uid 550); 2 Apr 2015 18:17:51 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: Original-Received: (qmail 32581 invoked from network); 2 Apr 2015 18:17:50 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.8.0 In-Reply-To: <20150402161837.GA6817@brightrain.aerifal.cx> X-Clement-Version: 2.6-6.7 X-Clement-ID: <00718-20150402141736-3b782585> X-Clement-Virus-checker: ClamAV 0.98.4/20278/Wed Apr 1 15:49:08 2015 Xref: news.gmane.org gmane.linux.lib.musl.general:7318 Archived-At: This is a cryptographically signed message in MIME format. --------------ms020606050306030104050906 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 04/02/2015 12:18 PM, Rich Felker wrote: > On Thu, Apr 02, 2015 at 11:53:19AM -0400, Jean-Marc Pigeon wrote: >> Hello, >> >> >> I compiled perl (native, under gcc-musl) and I have >> a non expected result with ldd. >> >> Example: (with a musl system tree chroot) >> bash=3D4/3# cd /usr/lib/perl5/5.20.2/auto/IPC/SysV/ >> bash-4.3# ldd SysV.so >> ldd (0x7f5d60dd2000) >> libc.so =3D> ldd (0x7f5d60dd2000) >> Error relocating SysV.so: Perl_croak: symbol not found >> Error relocating SysV.so: Perl_sv_setiv: symbol not found >> Error relocating SysV.so: Perl_sv_2pv_flags: symbol not found >> Error relocating SysV.so: Perl_av_store: symbol not found >> etc. >> >> While with glibc (with a glibc system tree chroot) >> bash-4.3# cd /usr/lib/perl5/5.20.2/auto/IPC/SysV >> bash-4.3# ldd SysV.so >> linux-vdso.so.1 (0x00007fff09556000) >> libc.so.6 =3D> /lib64/libc.so.6 (0x00007f25be856000) >> /lib64/ld-linux-x86-64.so.2 (0x00007f25bee00000) >> >> I am puzzled about those "Error relocating" >> native (within musl) perl make didn't return error, >> so I am assuming everything went well. >> >> Advices...? hints? do we have a real problem >> with musl ldd or I goofed somehow? >=20 > Hmm, it seems like glibc ldd does not (or at least does not always) > report symbols that can't be resolved. What seems to be happening is > that the above symbols are intended to be provided by the main program > (the perl interpreter) loading SysV.so rather than resolved via > library dependencies. >=20 > I hadn't really considered using ldd on .so files, only on main > programs where this would not be an issue. >=20 > If someone can help determine exactly what glibc ldd's behavior is > here (does it always ignore missing symbols? or only for .so files, > and if so, how does it distinguish .so file from main program?) it > should be easy to make musl's behavior match. >=20 I am using a packager using ldd to establish dependencies list. --=20 A bient=F4t =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D Jean-Marc Pigeon E-Mail: jmp@safe.ca SAFE Inc. Phone: (514) 493-4280 Clement, 'a kiss solution' to get rid of SPAM (at last) Clement' Home base <"http://www.clement.safe.ca"> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D --------------ms020606050306030104050906 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIMdzCC BjQwggQcoAMCAQICAR4wDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoT DVN0YXJ0Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNp Z25pbmcxKTAnBgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3 MTAyNDIxMDE1NVoXDTE3MTAyNDIxMDE1NVowgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1T dGFydENvbSBMdGQuMSswKQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWdu 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