linaro-toolchain

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5630 discussions

[ACTIVITY] 17-21 December 2012

by Christophe Lyon

== Progress == * 64-bits ops in Neon: re-posted patch after a bit of cleanup requested by upstream. Investigated Fortran regression: confirmed unrelated to this patched, and fixed upstream. * disable-peeling: launched jobs under cbuild to perform initial benchmarking * builtin_bswap16 backport to linaro-4.7: almost OK, missing some pending validation results. * cbuild: investigated some reporting problems which were slowing down the branch review process. == Next == * handle 64-bits bitops in Neon feedback from upstream if any * finish builtin_bswap16 backport * benchmark with vectorizer cost model enabled with its default configuration == Future == Back on January 7th, after the end of the world.

12 years, 8 months

[ACTIVITY] 17-21 December 2012

by Matthew Gretton-Dann

== Blueprints == Initial Current Actual initial-aarch64-backport 31 Oct 2012 31 Dec 2012 21 Dec 2012 aarch64-baremetal-testing 31 Oct 2012 31 Dec 2012 21 Dec 2012 backport-fma-intrinsic 31 Dec 2012 Brice fused-multiply-add-support 31 Dec 2012 Brice gcc-investigate-lra-for-arm 31 Dec 2012 Brice fix-gcc-multiarch-testing 31 Dec 2012 31 Jan 2013 == Progress == * Admin * Interviewing * Welcomed Brice Dobry to the working group * Started inputting cards into cards.linaro.org * Discussions about KVM * Discussions about Toolchain/Platform interactions * initial-aarch64-backport and aarch64-baremetal-testing * Finished documentation == Next (working) week == * Admin * Finish loading card drafts into Jira. * Welcome Renato to working group. * Do monthly GCC merges * Prepare Cortex Strings release * Ensure GCC backports are up to date. == Future == * Run HOT/COLD partitioning benchmarks * Analyse ARM results * On x86_64 to see what the actual benefit we could get * fix-gcc-multiarch-testing * Come up with strawman proposal for updating testsuite to handle testing with varying command-line options. -- Matthew Gretton-Dann Linaro Toolchain Working Group matthew.gretton-dann(a)linaro.org

12 years, 8 months

Re: [Merge] lp:~brice-dobry/gcc-linaro/fma into lp:gcc-linaro

by Matthew Gretton-Dann

On 21 December 2012 09:54, Yvan Roux <yvan.roux(a)linaro.org> wrote: > Matt, do you have something particular in mind to put in a shared and versioned .bzrignore file ? > My understanding of its usage is that it is more a user side configuration of the archive. > (Maybe we could chat about this topic on another channel) Yes this conversation should probably be conducted elsewhere :-) - moved to linaro-toolchain. If you look at upstream SVN GCC and do svn propget svn:ignore you get a long list of files that SVN is set up to ignore. And whilst there isn't a .gitignore other upstream projects which have git mirrors do put a .gitignore in place (see GDB for instance). I think having a .bzrignore which is a copy of the svn:ignore set up (and the defaults that SVN ignores but aren't on bzr's list) would be valid in the repo. Although as I said in the original thread - let's do this when we branch 4.8 and not to the historic branches. Thanks, Matt -- Matthew Gretton-Dann Linaro Toolchain Working Group matthew.gretton-dann(a)linaro.org

12 years, 8 months

[ANNOUNCE] Linaro Toolchain Binaries 2012.12 released

by Zhenqiang Chen

The Linaro Toolchain Working Group is pleased to announce the 2012.12 release of the Linaro Toolchain Binaries, a pre-built version of Linaro GCC and Linaro GDB that runs on generic Linux or Windows and targets the glibc Linaro Evaluation Build. Uses include: * Cross compiling ARM applications from your laptop * Remote debugging * Build the Linux kernel for your board What's included: * Linaro GCC 4.7 2012.12 * Linaro GDB 7.5 2012.12 * A statically linked gdbserver * A system root * Manuals under share/doc/ The system root contains the basic header files and libraries to link your programs against. The Linux version is supported on Ubuntu 10.04.3 and 12.04, Debian 6.0.2, Fedora 16, openSUSE 12.1, Red Hat Enterprise Linux Workstation 5.7 and later, and should run on any Linux Standard Base 3.0 compatible distribution. Please see the README about running on x86_64 hosts. The Windows version is supported on Windows XP Pro SP3, Windows Vista Business SP2, and Windows 7 Pro SP1. The binaries and build scripts are available from: https://launchpad.net/linaro-toolchain-binaries/trunk/2012.12 Need help? Ask a question on https://ask.linaro.org/ Already on Launchpad? Submit a bug at https://bugs.launchpad.net/linaro-toolchain-binaries On IRC? See us on #linaro on Freenode. Other ways that you can contact us or get involved are listed at https://wiki.linaro.org/GettingInvolved.

12 years, 8 months

[ACTIVITY] 10 - 14 December 2012

by Yvan Roux

== Progress == * Release week: - Made 2012.12 release of gcc-linaro 4.6 and 4.7. - took lot of time (infrastructure, right acess, Lava lab migration) * GCC atomic builtins: - my load acquire patch was applied up-stream (trunk and 4.7). - some cleaning in optabs.c (patch applied up-stream too). == Next == * Resume Boehm GC AArch64 support. * Review roster.

12 years, 8 months

[ACTIVITY] 10 - 14 December 2012

by Christophe Lyon

== Progress == * gdb-linaro-7.5-2012.12 release - Updated wikis about gdb sources import from upstream and about gdb-linaro release - still some trouble with infrastructure to achieve the release * 64-bits ops in Neon: no news from upstream * disable-peeling: upstream advice is to enable & tune the vectorizer cost model first, but there seems to be an agreement that if unaligned accesses have no penalty, peeling should not be considered. Updated the vectorizer-cost-model blueprint * builtin_bswap16 backport to linaro-4.7: the i686 regression was caused by the build process. Re-spawned the jobs after fixing the remaining arm issue * cbuild: briefly looked at some scripts to better understand the whole system, while tracking a problem in the gdb validation reports == Next == * handle 64-bits bitops in Neon and disable-peeling feedback from upstream if any * finish builtin_bswap16 backport == Future == * on holidays for 2 weeks (Dec 22th-Jan 6th)

12 years, 9 months

[ACTIVITY] 10 - 14 December

by Matthew Gretton-Dann

== Blueprints == Initial Current Actual initial-aarch64-backport 31 Oct 2012 31 Dec 2012 aarch64-baremetal-testing 31 Oct 2012 31 Dec 2012 backport-fma-intrinsic 31 Dec 2012 Brice fused-multiply-add-support 31 Dec 2012 Brice gcc-investigate-lra-for-arm 31 Dec 2012 31 Dec 2012 fix-gcc-multiarch-testing 31 Dec 2012 31 Jan 2013 == Progress == * Admin * Interviewing * Took over from Michael * New Starter prep * Updated card drafts * Discussions about LEG/TCWG interactions * Discussions about KVM * Discussions about Toolchain/Platform interactions == Next Week == * Upload card drafts into Jira. * initial-aarch64-backport and aarch64-baremetal-testing * Complete documentation == Future == * gcc-investigate-lra-for-arm * Analyse benchmarks * Run HOT/COLD partitioning benchmarks * Analyse ARM results * On x86_64 to see what the actual benefit we could get * fix-gcc-multiarch-testing * Come up with strawman proposal for updating testsuite to handle testing with varying command-line options. -- Matthew Gretton-Dann Linaro Toolchain Working Group matthew.gretton-dann(a)linaro.org

12 years, 9 months

[ACTIVITY] report week 50

by Peter Maydell

* qemu-linaro 2012.12 release * arm-devs pullreq sent * wrote a patch for some minor TCG leaks * more virtio patch review * various other upstream arm devs review * discussion re KVM planning, etc * usual collection of meetings and calls KVM blueprint progress tracker (note new url): http://cbuild.validation.linaro.org/helpers/backlog?group_by=topic&colour_b… -- PMM

12 years, 9 months

Clearing out past branches

by Michael Hope

Hi Ramana. You have the following branches remaining on Launchpad: * lp:~ramana/gcc-linaro/47-lower-subreg-experiments * lp:~ramana/gcc-linaro/47-improve-neon-intrinsics * lp:~ramana/gcc-linaro/47-nobble-promote-mode * lp:~ramana/gcc-linaro/47-smin-umin-idiom Which are obsolete, which should be spun out into backlog blueprints, and which should be taken over by someone? -- Michael

12 years, 9 months

[Activity] Week 50

by Zhenqiang Chen

Summary: * Validate RM toolchain * Prepare Linaro Toolchain Binaries 2012.12 release. * Collect performance data for different branch cost. Details: 1. Validate RM toolchain release. 2. Collect denbench and spec2000int performance data for branch cost tuning. 3. Fix README issue (lp:1068402) by dynamically create README.txt: * The hard coded README.txt is removed. * Update build scripts to generate the README.txt, which depends on - README.texi, which is the common template for all TARGETS. - config.texi, which sets the default configuration for the TARGET. Each TARGET has a config.texi. - version.texi, created during build, includes GCC_VERSION, GDB_VERSION and TOOLCHAIN_VERSION. 4. Update Linaro GCC and GDB to 2012.12 in Linaro crosstool-ng, workaround gdb mingw32 link fail issue (due to mbsrtowcs is redefined in gdb/gnulib), finish the smoke test and spawn release builds. Plans: * Investigate how branch cost impacts on code generation. * Release Linaro Toolchain Binaries 2012.12. Best regards! -Zhenqiang

12 years, 9 months

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