From owner-freebsd-mips@freebsd.org Sun Nov 20 18:14:40 2016 Return-Path: Delivered-To: freebsd-mips@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 959E4C4C7B3 for ; Sun, 20 Nov 2016 18:14:40 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [78.47.246.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 34A711F0 for ; Sun, 20 Nov 2016 18:14:39 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221]) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id uAKIET6v039509 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Sun, 20 Nov 2016 19:14:29 +0100 (CET) (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: Received: from eg.sd.rdtc.ru (eugen@localhost [127.0.0.1]) by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTP id uAKIEOwb018748 for ; Mon, 21 Nov 2016 01:14:25 +0700 (KRAT) (envelope-from eugen@grosbein.net) From: Eugene Grosbein Subject: MIPS code size strangeness X-Enigmail-Draft-Status: N1110 To: "freebsd-mips@freebsd.org" Message-ID: <5831E800.60003@grosbein.net> Date: Mon, 21 Nov 2016 01:14:24 +0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=0.3 required=5.0 tests=BAYES_00,LOCAL_FROM autolearn=no autolearn_force=no version=3.4.1 X-Spam-Report: * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * 2.6 LOCAL_FROM From my domains X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on hz.grosbein.net X-BeenThere: freebsd-mips@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Porting FreeBSD to MIPS List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Nov 2016 18:14:40 -0000 Hi! I'm currently struggle trying to fit my FreeBSD 12/mips build into 8M flash available. It used to fit with early 11.0-CURRENT and it has over megabyte overhead with 12.0-CURRENT. Large parts are /usr/bin and /usr/lib and I've found something very strange. For example: /usr/lib/libprivateucl.so.1 has 136064 bytes for amd64 and it has 241560 bytes for mips. "nm -C -D --print-size --size-sort libprivateucl.so.1" shows the symbol "ucl_hash_replace" has 330 bytes (0x14a) for amd64 and it has 25000 bytes (sic! 0x61a8) for mips. I understand that amd64 version is built with clang and MIPS code generated with gcc. But why such large difference? In no way such small function ucl_hash_replace() should expand to 25000 machine code bytes. I suspect other parts of code may have this problem too. Eugene Grosbein