From mboxrd@z Thu Jan  1 00:00:00 1970
X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/9164
Path: news.gmane.org!not-for-mail
From: Szabolcs Nagy <nsz@port70.net>
Newsgroups: gmane.linux.lib.musl.general
Subject: Re: MUSL issue while loading C++ lib
Date: Thu, 21 Jan 2016 18:12:46 +0100
Message-ID: <20160121171245.GC9621@port70.net>
References: <CAOkOUedH3Tyw_ERM4j_5T-RQ3QH5Ow0egZst_5Nup68m-xA3RA@mail.gmail.com>
Reply-To: musl@lists.openwall.com
NNTP-Posting-Host: plane.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Trace: ger.gmane.org 1453396382 2001 80.91.229.3 (21 Jan 2016 17:13:02 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Thu, 21 Jan 2016 17:13:02 +0000 (UTC)
To: musl@lists.openwall.com
Original-X-From: musl-return-9177-gllmg-musl=m.gmane.org@lists.openwall.com Thu Jan 21 18:13:01 2016
Return-path: <musl-return-9177-gllmg-musl=m.gmane.org@lists.openwall.com>
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 <musl-return-9177-gllmg-musl=m.gmane.org@lists.openwall.com>)
	id 1aMIn7-0000ZP-9v
	for gllmg-musl@m.gmane.org; Thu, 21 Jan 2016 18:13:01 +0100
Original-Received: (qmail 13474 invoked by uid 550); 21 Jan 2016 17:12:59 -0000
Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm
Precedence: bulk
List-Post: <mailto:musl@lists.openwall.com>
List-Help: <mailto:musl-help@lists.openwall.com>
List-Unsubscribe: <mailto:musl-unsubscribe@lists.openwall.com>
List-Subscribe: <mailto:musl-subscribe@lists.openwall.com>
List-ID: <musl.lists.openwall.com>
Original-Received: (qmail 13454 invoked from network); 21 Jan 2016 17:12:58 -0000
Mail-Followup-To: musl@lists.openwall.com
Content-Disposition: inline
In-Reply-To: <CAOkOUedH3Tyw_ERM4j_5T-RQ3QH5Ow0egZst_5Nup68m-xA3RA@mail.gmail.com>
User-Agent: Mutt/1.5.24 (2015-08-30)
Xref: news.gmane.org gmane.linux.lib.musl.general:9164
Archived-At: <http://permalink.gmane.org/gmane.linux.lib.musl.general/9164>

* N Jain <jain61@gmail.com> [2016-01-21 11:21:57 -0500]:
> 
> Error relocating /lib/libstdc++.so.6: _Unwind_Resume_or_Rethrow: symbol not
> found
> Error relocating /lib/libstdc++.so.6: _Unwind_GetLanguageSpecificData:
> symbol not found
> 

these symbols should be defined in libgcc_s.so.1
which is linked to c++ code by gcc.

sounds like a gcc toolchain issue, if you cannot
figure it out then post

echo 'int main(){}' |g++ -xc++ -

readelf -ld ./a.out
strace /lib/ld-musl-*.so.1 ./a.out
readelf -d /lib/libstdc++.so.6
readelf -aW /lib/libstdc++.so.6 |grep Unwind
readelf -aW /lib/libgcc_s.so.1 |grep Unwind