svn commit: r48611 - head/en_US.ISO8859-1/htdocs/news/status
Warren Block <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.cvs.doc |
|---|---|
| Message-ID | <[email protected]> |
Author: wblock Date: Wed Apr 13 16:15:00 2016 New Revision: 48611 URL: https://svnweb.freebsd.org/changeset/doc/48611 Log: Add the lld linker report from Ed Maste <[email protected]>. Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml Wed Apr 13 16:06:33 2016 (r48610) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml Wed Apr 13 16:15:00 2016 (r48611) @@ -1903,7 +1903,7 @@ community to consider.</p> <p>Core is also coordinating with the committee headed by Anne - Dickinson who are reviewing the Code of Conduct. A corpus of + Dickison who are reviewing the Code of Conduct. A corpus of case studies is being assembled, which will be re-examined to see what impact changes to the Code of Conduct would have had.</p> @@ -1925,4 +1925,92 @@ on lld and other parts of the toolchain.</p> </body> </project> + + <project cat='bin'> + <title>Using <tt>lld</tt>, the LLVM Linker, to Link + FreeBSD</title> + + <contact> + <person> + <name> + <given>Ed</given> + <common>Maste</common> + </name> + <email>[email protected]</email> + </person> + + <person> + <name> + <given>Davide</given> + <common>Italiano</common> + </name> + <email>[email protected]</email> + </person> + </contact> + + <links> + <url href="https://wiki.freebsd.org/LLD">&os; lld wiki page</url> + <url href="http://lists.llvm.org/pipermail/llvm-dev/2016-March/096449.html">Status report on linking FreeBSD/amd64 with lld</url> + </links> + + <body> + <p><tt>lld</tt> is the linker in the LLVM family of projects. + It is intended to be a high-performance linker and supports + the ELF, COFF and Mach-O object formats. Where possible, + <tt>lld</tt> maintains command-line and functional + compatibility with existing linkers (GNU BFD <tt>ld</tt> and + <tt>gold</tt>), but <tt>lld</tt>'s authors are not constrained + by strict compatability where it would hamper performance or + desired functionality.</p> + + <p>The upstream <tt>lld</tt> project made significant progress + in adding new functionality to <tt>lld</tt>'s ELF support over + the first quarter of 2016. The <tt>lld</tt> ELF linker is + capable of self-hosting on FreeBSD/amd64 and is capable of + linking many test applications.</p> + + <p><tt>lld</tt> currently lacks comprehensive linker script + expression evaluation support, and therefore cannot yet be + used to link the FreeBSD kernel. It also lacks versioned + symbol support, and does not implement some options used in + the FreeBSD boot loader components.</p> + + <p>I've been running experimental world builds of FreeBSD/amd64 + with <tt>lld</tt> installed in place of <tt>ld.bfd</tt> as the + linker. With workarounds for the current gaps in + functionality (using the <tt>WITHOUT_SYMVER</tt> option to + disable symbol versioning use, and linking the loader + components with GNU <tt>ld</tt>), <tt>lld</tt> is now able to + link a working FreeBSD system.</p> + </body> + + <sponsor>The &os; Foundation</sponsor> + + <help> + <task> + <p>Enable the <tt>lld</tt> option by default in the llvm-devel + (and later llvm) ports for testing.</p> + </task> + + <task> + <p>Develop symbol version support and linker script expression + improvements in the upstream lld project.</p> + </task> + + <task> + <p>Import a newer lld snapshot into the vendor area, add build + infrastructure and connect it to the world build, installed + as <tt>ld.lld</tt>.</p> + </task> + + <task> + <p>Request a ports exp-run with <tt>/usr/bin/ld</tt> a symlink + to <tt>ld.lld</tt>.</p> + </task> + + <task> + <p>Extensive testing.</p> + </task> + </help> + </project> </report> _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-doc-all To unsubscribe, send any mail to "[email protected]"