Using <tt>lld</tt>, the LLVM Linker, to Link &os;

From owner-svn-doc-all@freebsd.org Wed Oct 26 00:46:20 2016 Return-Path: Delivered-To: svn-doc-all@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 63E53C21DFB; Wed, 26 Oct 2016 00:46:20 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 197EA946; Wed, 26 Oct 2016 00:46:20 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u9Q0kJfc050049; Wed, 26 Oct 2016 00:46:19 GMT (envelope-from bjk@FreeBSD.org) Received: (from bjk@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u9Q0kJdV050048; Wed, 26 Oct 2016 00:46:19 GMT (envelope-from bjk@FreeBSD.org) Message-Id: <201610260046.u9Q0kJdV050048@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: bjk set sender to bjk@FreeBSD.org using -f From: Benjamin Kaduk Date: Wed, 26 Oct 2016 00:46:19 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r49585 - head/en_US.ISO8859-1/htdocs/news/status X-SVN-Group: doc-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire doc trees \(except for " user" , " projects" , and " translations" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Oct 2016 00:46:20 -0000 Author: bjk Date: Wed Oct 26 00:46:19 2016 New Revision: 49585 URL: https://svnweb.freebsd.org/changeset/doc/49585 Log: Add lld entry from emaste Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2016-07-2016-09.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2016-07-2016-09.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2016-07-2016-09.xml Wed Oct 26 00:38:27 2016 (r49584) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2016-07-2016-09.xml Wed Oct 26 00:46:19 2016 (r49585) @@ -2073,4 +2073,74 @@ The FreeBSD Foundation + + + Using <tt>lld</tt>, the LLVM Linker, to Link &os; + + + + + Ed + Maste + + emaste@freebsd.org + + + + + LLD Wiki Page + + + +

lld is the linker in the LLVM family of projects. + It is a high-performance linker that supports the ELF, COFF, + and Mach-O object formats. Where possible, lld + maintains command-line and functional compatibility with the + existing GNU BFD ld and gold linkers. However, the authors of + lld are not constrained by strict compatibility where + it would hamper performance or desired functionality.

+ +

Compared to the GNU ld 2.17.50 currently in the base system, + lld will bring:

+ +

AArch64 (arm64) support
Link Time Optimization (LTO)
New ABI support
Other linker optimizations
Much faster link times
Maintained code base

+ +

The upstream lld project has now implemented + nearly all of the functionality required to link the amd64 + FreeBSD base system, including the kernel. The boot loader + components and rescue utilities currently do not + build with lld.

+ + + + Merge lld to FreeBSD head as part of the Clang + 3.9.0 import. + + Request a ports exp-run with lld installed as + /usr/bin/ld. + + Fix building the boot loader with lld. + + Fix building rescue with lld. + + Test and iterate making lld fixes for + additional architectures. + + + + The FreeBSD Foundation + +