From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/7386 Path: news.gmane.org!not-for-mail From: Brad Conroy Newsgroups: gmane.linux.lib.musl.general Subject: Concerns about dlclose() behaviour Date: Tue, 14 Apr 2015 23:29:17 -0700 Message-ID: <1429079357.97612.YahooMailBasic@web160405.mail.bf1.yahoo.com> References: <20150414231627.GR6817@brightrain.aerifal.cx> 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 1429079391 9649 80.91.229.3 (15 Apr 2015 06:29:51 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 15 Apr 2015 06:29:51 +0000 (UTC) To: musl@lists.openwall.com Original-X-From: musl-return-7399-gllmg-musl=m.gmane.org@lists.openwall.com Wed Apr 15 08:29:51 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 1YiGpa-00025W-0G for gllmg-musl@m.gmane.org; Wed, 15 Apr 2015 08:29:50 +0200 Original-Received: (qmail 25912 invoked by uid 550); 15 Apr 2015 06:29:48 -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 25821 invoked from network); 15 Apr 2015 06:29:29 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 640004.34459.bm@omp1017.mail.bf1.yahoo.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1429079357; bh=PQFQlIcxsRrcMFPvyLgEGbfNFejADelHGbwGlGNClNw=; h=Message-ID:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=oqInr5gfkSkZGhxBF7hns3RBneJoCv21yjMPBO4okYVOdx9iZ1yrI7IHF7O2xOCnkbNiNEJdzcMwjsJyeQQ2ux+06YuO30yxbxAPZd53UFQK5s9qSj8P/bLW5QdDS6AZSWuB7W10ZtiSO5Mg1O403CeCHQ1p7PAGVTACwVg3nCA= X-YMail-OSG: 0H0CCysVM1khGO1FvIKocymVawIjF.b6B2gTAN.14cDD5S2 SWyRNQeiQmQdwp9JN3oUlLPKOB_JeQHAFGIh72VH0qETnk_rXx79Ac8A10uj 0_ANgP.KtOmfKCiSsZNbNfQL1QIjQEPTxygzjXuSn0RP3SKhzgd9wj91hnf. mAwbWpSsZ6B0QUcAVIDwNEdyEfOaUJFUDqBvmSbwOxVHsTWlCfl6gNKsAlZz wkK4Gf5.NRWUG7kt3aE.gnkJbSFqmL2bo3BM8Cyyiyg_DqUTFeHjvdHnjDju CJng5xyXCblApn2yt65IRf3JmUCAjXjEW5dQOrGDo0g1n3sKWrYLmp9dx66a T0hL4bBoxtkUPgN_LgxDHeLba6ERkXCMUTNtbOe5yDQ.juo2dMCiCueVsWSI _s1t.E2.L7oWFCkAMXBBOchRMzHo.JiCZmfsBe614qfQ_oe.Gvy9oUb5JA7Y IqEKxMoZ.15e0u5gP.MC2sH.mKECb3dCeuHN816a9Gl8O5Cwtq_xNRD5aKFF v2FZGp3k5As.Ehh0I6zDtgdLFIdK3LpiqTKjDq0dVSa_gQ88_5eEJXMqzoMW O96_1pH9U X-Rocket-MIMEInfo: 002.001,SSByZWNlbnRseSBjaGVja2VkIG91dCB0aGUgbmV0c3VyZi1mcmFtZWJ1ZmZlciBwYWNrYWdlIGZyb20gZGViaWFuDQphbmQgd2FzIGJvdGhlcmVkIHRoYXQgYWxsIG9mIHRoZSBiYWNrZW5kcyB3ZXJlIGNvbXBpbGVkIGluLi4uDQp0aHVzIHJlcXVpcmluZyBhIGJ1bmNoIG9mIGV4dHJhIGRlcGVuZGVuY2llcyBhbmQgaW5jcmVhc2luZyBmb290cHJpbnQuDQoNCkkgYW0gY3VycmVudGx5IHBhdGNoaW5nIGl0IHRvIG1ha2UgdGhlIGJhY2tlbmRzIG1vZHVsYXIsIGJ1dCByYW4gaW50bw0KYSBjb25jZXJuIGFib3UBMAEBAQE- X-Mailer: YahooMailClassic/469 YahooMailWebService/0.8.203.740 In-Reply-To: <20150414231627.GR6817@brightrain.aerifal.cx> Xref: news.gmane.org gmane.linux.lib.musl.general:7386 Archived-At: I recently checked out the netsurf-framebuffer package from debian and was bothered that all of the backends were compiled in... thus requiring a bunch of extra dependencies and increasing footprint. I am currently patching it to make the backends modular, but ran into a concern about musl compatibility. libnsfb is set up in such a way that each backend has (static) functions exported in a single struct. With normal dlclose() functionality, I could use dlopen to get a module and run its init function, then if it fails, just dlclose() it and try the next backend (all using the same variable and function names, thus simplifying the implementation) I am thinking this will still work on musl in a way similar to using LD_PRELOAD, but wanted to verify before moving forward since many nsfb users also use musl. R, Brad Conroy