- linaro-toolchain - lists.linaro.org

by Peter Maydell

Progress: * back from sabbatical! * caught up on admin, email, etc * code review: Christoffer's GIC related patches; VSEL support in 32 bit v8; support for VBAR; integrator bugfixes; others * working on a pullreq for ARM stuff to go into QEMU 1.7 (we're now in softfreeze) Plans: * attend KVM Forum, Connect * review the SuSE aarch64-linux-user patches -- PMM

11 years, 8 months

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[ACTIVITY] Week 42

by Zhenqiang Chen

== Issues == * None == Progress == * Prepare Linaro toolchain binaries 2013.10 release - Update EGLIBC version to 2013.10 and enable-profile for AARCH64. - Generate Linaro prebuilt sysroot for arm-linux-gnueabihf. * Commit patch to Reassociate X == CST1 || X == CST2 if popcount (CST2 - CST1) == 1 into ((X - CST1) & ~(CST2 - CST1)) == 0 * Send ifcombine patch (to generate more conditional compare) for review. * Root cause pr58775. * Test conditional compare changes. - Bootstrap and no make check regression on THUMB mode. - ARM mode test is ongoing. == Plan == * Send out the CCMP patch for review.

11 years, 8 months

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[ACTIVITY] Week 42

by Renato Golin

== Issues == * Short week - school closed on Thursday - holiday Friday - several visits to the dentist - feeling poorly, I think I have shellfish allergy == Progress == * EEMBC - Identified the problem on test not vectorizing - Some ways to fix it: SLP, stride-access, unrolling - Started implementation of GEP-PHI detection for reduction variables * Odroid XU - Bot died after a few hours, not really stable - Trying again, at home, both odroids in parallel, they seem ok * Background - General reviews, etc.

11 years, 8 months

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[ANNOUNCE] Linaro GCC 4.8 and 4.7 2013.10 released

by Christophe Lyon

The Linaro Toolchain Working Group is pleased to announce the release of both Linaro GCC 4.8 and Linaro GCC 4.7. Linaro GCC 4.7 2013.10 is the nineteenth release in the 4.7 series. Based off the latest GCC 4.7.4+svn203509 release, this is the sixth release after entering maintenance. Interesting changes include: * Updates to GCC 4.7.4+svn203509 * Fix for LP #1229170 Linaro GCC 4.8 2013.10 is the seventh release in the 4.8 series. Based off the latest GCC 4.8.1+svn203510 release, it includes performance improvements and bug fixes. Interesting changes include: * Updates to GCC 4.8.1+svn203510 * Improved AArch64 support (CRC extension, improved intrinsics, gprof support) * Improved Aarch32 support (bug fixes, better code generation, improved multilib) * Backports for bug fixes (PR58578 We are aware that FSF GCC 4.8.2 was released earlier this week. However, this release happened too late in our cycle for us to use it as the basis for Linaro GCC 4.8 2013.10. The only functional difference contained in FSF GCC 4.8.2 that is not in Linaro GCC 4.8 2013.10 is a correction to a x86 test case. The source tarballs are available from: https://launchpad.net/gcc-linaro/+milestone/4.7-2013.10 https://launchpad.net/gcc-linaro/+milestone/4.8-2013.10 Downloads are available from the Linaro GCC page on Launchpad: https://launchpad.net/gcc-linaro More information on the features and issues are available from the release pages: https://launchpad.net/gcc-linaro/4.7/4.7-2013.10 https://launchpad.net/gcc-linaro/4.8/4.8-2013.10 Mailing list: http://lists.linaro.org/mailman/listinfo/linaro-toolchain Bugs: https://bugs.launchpad.net/gcc-linaro/ Questions? https://ask.linaro.org/ Interested in commercial support? Inquire at support(a)linaro.org

11 years, 8 months

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[ANNOUNCE] Linaro binutils 2.23.2 2013.10-4 released

by Will Newton

### About Linaro binutils Linaro binutils is a release of the GNU binutils with bug fixes and enhancements for ARM platforms. GNU binutils is a collection of tools including the `ld` linker and `as` assembler. ### Linaro binutils 2.23.2 2013.10-4 The Linaro Toolchain Working Group is pleased to announce the 2013.10-4 release of Linaro binutils 2.23.2, the third release in the 2.23 series. This release is based on the latest GNU binutils 2.23 stable branch, but with additional features and bug fixes. #### Additional Features * AArch64 GC sections support * Support passing -mcpu=cortex-a53 and -mcpu=cortex-a57 to AArch64 gas * Support passing -mcpu=cortex-a53 and -mcpu=cortex-a57 to ARM gas * Support passing -mcpu=cortex-a12 to ARM gas * Support AArch64 CRC instructions * Support ARM CRC instructions #### Bug Fixes * Bug fix for AArch64 GOT layout * Fixed source tarball structure ### Source #### Release Tarball * https://releases.linaro.org/13.10/components/toolchain/binutils-linaro #### Development Tree * git://git.linaro.org/toolchain/binutils.git This release was built from the `linaro_binutils-2_23_2-2013_10-4_release` tag. ### Feedback and Support Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development. * Linaro Toolchain Development [mailing list](http://lists.linaro.org/mailman/listinfo/linaro-toolchain) * Linaro Toolchain IRC channel on irc.freenode.net at `#linaro-tcwg` * Questions? [ask Linaro](http://ask.linaro.org/). * Interested in commercial support? inquire at [Linaro support](mailto:support@linaro.org) -- Will Newton Toolchain Working Group, Linaro

11 years, 8 months

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[ANNOUNCE] Linaro eglibc 2.18 2013.10 released

by Will Newton

### About Linaro eglibc Linaro eglibc is a release of the eglibc C library with bug fixes and enhancements for ARM platforms. eglibc is a variant of the GNU libc designed to work well on embedded systems. ### Linaro eglibc 2.18 2013.10 The Linaro Toolchain Working Group is pleased to announce the 2013.10 release of Linaro eglibc 2.18, the second release in the 2.18 series. This release is based on the latest upstream eglibc 2.18 stable branch, but with additional features and bug fixes. #### Additional Features * AArch64 profiling support * Optimized strlen for ARMv6T2 * Small enhancement to memcpy performance * ARM pointer encryption support #### Bug Fixes * Fix for integer overflows in memalign/pvalloc/valloc ### Source #### Release Tarball * https://releases.linaro.org/13.10/components/toolchain/eglibc-linaro #### Development Tree * git://git.linaro.org/toolchain/eglibc.git This release was built from the `linaro_eglibc-2_18-2013_10_release` tag. ### Feedback and Support Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development. * Linaro Toolchain Development [mailing list](http://lists.linaro.org/mailman/listinfo/linaro-toolchain) * Linaro Toolchain IRC channel on irc.freenode.net at `#linaro-tcwg` * Questions? [ask Linaro](http://ask.linaro.org/). * Interested in commercial support? inquire at [Linaro support](mailto:support@linaro.org) -- Will Newton Toolchain Working Group, Linaro

11 years, 8 months

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[ACTIVITY] 7-11 October 2013

by Christophe Lyon

== Issue == * AArch64 frame grows downward: no feedback yet. == Progress == * Disable-peeling: Vectorizer cost model has been changed upstream, quick look at benchmark results show little difference between before and after the change. Need to analyze further, since I expected the regressions previously identified with my patch to appear here too. * AArch64 bootstrap failure: succesfully bootstrapped in the model. * GCC trunk validation: - improved configurability (default cpu, fpu, mode, testsuite flags are selectable) - requested feedback to build the list of desirable combinations to validate * Backports/release 2013.10 - a few more backports completed - re-trying to backport the ILP32 and refactoring series proves again to be tricky, but helped identify backports which had escaped from the list. - cbuild has disk full again * GCC Neon intrinsics testsuite: -- posted a proposition to add my executable tests to the existing framework. No feedback yet. == Next == * Make 2013.10 releases, both with the historical process and using cbuildv2, in parallel * Disable-peeling/new vectorizer cost model: analyze bench results

11 years, 8 months

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[ACTIVITY] Week 41

by Yvan Roux

== Issues == * None. == Progress == * 2013-10 release. - Backports reviews. * LRA on AArch32: - Performance analysis: Identified some regressions due to load multiple usage. - Thumb issue work ongoing. * Misc: - Internal meetings, trainings. == Next == * LRA

11 years, 8 months

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[Activity] Oct 7-13

by Rob Savoye

== Progress == * Got cbuildv2 google group setup. (https://groups.google.com/a/linaro.org/forum/#!forum/cbuildv2) * Got email notifications working for commits to cbuildv2 repository. * Continued work on release building via Cbuildv2. Source tarballs checked out OK, binaries too. Probably a few tweaks left to cover the minor differences, which are all documentation files. - Rebuild GCC dynamically so the shared libraries for libgcc and libstdc++ can go in the runtime binary tarball. - Build runtime binary tarball. - Added install script to sysroot tarball. - Make overriding the default release tag with a user supplied one work fully. * Got Odroid U2 board working again, did complete native build using cbuildv2. * Reviewed more cbuild2 patches from Ryan. * Got Jenkins building snapshot tarballs. == Plan == * Do slides for Connect presentation. * Work on duplicating the 2013.10 release via cbuildv2. * Get Odroid X2 board to boot, which it currently refuses to do. * Try to work around problem with importing test results. * Copy tarballs to snapshots.linaro.org.

11 years, 8 months

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[ACTIVITY] 8 - 11 October 2013

by Kugan

== Progress == * 4 Day week (October 7th Public Holiday) * 64bit division - Looked at libgcc division implementations - Implemented in C "Align divisor shift dividend method" for procssors without div instrusttion - gcc regression now pass with above * spec2k comparison between ARM and x86 - Continue working on slides for connect - ran benchmarks to gather required results == Plan == * Continue with spec2k comparison between ARM and x86 * Continye with 64bit division

11 years, 8 months

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[ACTIVITY] 7 - 11 October 2013

by Omair Javaid

== Progress == (TCWG-266), (TCWG-270), (TCWG-250), (TCWG-280) and (TCWG-288) * Added arm process record syscall support changes and some bug fixes. * More improvement to gdb.reverse on arm now 2214 tests are passing in native mode (144 failures left) (TCWG-267), (TCWG-268) and (TCWG-269) * No progress this week. * Received US visa from US visa passport collection center. * Booked travel for LCU13. == Plan == * Short week Hujj and Eid-Al-Adha Public Holidays in Pakistan 15-17 October 2013. (TCWG-250) * Update/test arm process record thumb32 support patch incorporating changes suggested by Will in his review. (TCWG-280) * Improve code changes and find ways to avoid hard coded constants imported from Linux Kernel.

11 years, 8 months

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[ACTIVITY] Week 40 & 41

by Zhenqiang Chen

== Issues == * Develop machine was broken. Have to resetup the system. == Progress == * Commit fix for pr58423 * Enhance Linaro crosstool-ng - Fix lp:1232678 - Get EGLIBC version from config files automatically. - Build aarch64 sysroot to support profile (https://launchpad.net/linaro-toolchain-binaries/support/01/). * Update the patch "Reassociate X == CST1 || X == CST2 if popcount (CST2 - CST1) == 1 into ((X - CST1) & ~(CST2 - CST1)) == 0" according to comments. * Continue on CCMP - Send the phiopt patch to handle CCMP for community review. Jeff will follow-up it. - Enhance ifcombine to generate more CCMP. - Handle more than 2 compares in expand. - Add new instruction patterns to generate CCMP for ARM. Test is ongoing. == Plan == * Send ifcombine patch for community review. * Continue on CCMP testing.

11 years, 8 months

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[ACTIVITY] Week 41 : Oct 7 - Oct 11

by Ryan Arnold

== Progress == * CbuildV2 Fixes to add fetch md5sums to testsuite/test.sh: - Subject: [PATCH][test_fetch_md5sums 1/2] lib/fetch.sh: Add missing ${local_snapshots} to md5sum path. - Subject: [PATCH][test_fetch_md5sums 2/2] testsuite/test.sh: Add fetch tests section. * CbuildV2 Fixes to get testsuite/test.sh working in the source directory: - Subject: [PATCH][cbuild2 1/3] testsuite/test.sh: Don't use "warning" function before it is sourced. - Subject: [PATCH][cbuild2 2/3] testsuite/test.sh: Remove redundant sourcing of host.conf. - Subject: [PATCH][cbuild2 3/3] testsuite/test.sh: Re-enable running tests from src dir. CbuildV2 random fixes: - Subject: [PATCH][cbuild2 2/4] cbuild2.sh: correct --disable "boostrap" - Subject: [PATCH][cbuild2 3/4] config/ffmpeg.conf: separate options * CbuildV2 fixes to remove ${dir}/md5sums usage (it is redunant with snapshots/md5sums). - Subject: [PATCH][cbuild2 1/4] Remove unneeded infrastructure/md5sums fragment - Subject: [PATCH][cbuild2 4/4] Remove ${dir} specific md5sums files. * Fixed error where gcc stage 2 configure returns early (erroneously) on success. - [PATCH] Only return early on error following configure * Fixed error in downloading branch named git repos in lib/checkout.sh. - [PATCH] Fix git clone to get repo without branch name as part of the url. == Issues == Contacted its@linaro requesting permission to be able to create personal branches in rsavoye’s cbuild2 git tree. They created a group for cbuildv2. Got work laptop installed (dualboot) with Fedora 19 and ran into some errors with secure boot. == Plan == * Spend some time looking at our options with regard to EGLIBC options groups when forced to move to glibc proper. *

11 years, 9 months

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[ACTIVITY] Week 41

by Will Newton

== Progress == * Backports and release for binutils 2013.10 (x4!) * Backports and release for eglibc 2013.10 * Submitted a couple more glibc memalign patches * Committed aarch64 gdb fix * Bits of malloc work in between == Issues == * None == Plan == * Try and get some uninterrupted time on malloc -- Will Newton Toolchain Working Group, Linaro

11 years, 9 months

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[ACTIVITY] Week 41

by Renato Golin

== Progress == * EEMBC - Updating Linaro image with Clang toolchain changes - Updating compare_all script to rank boards - Investigating differences in performance against GCC * ODroid XU - Setting up server image (Linaro 13.09 + odroid specific changes) - CPU scheduler is a mess, forcing "performance" governor at boot seems to work - No journal in root fs, remounts ro all the time (bad image?) - LLVM builds are slow (as fast as Chromebook), maybe it's the SDCard - Setting it as self-host buildbot in the lab, going well * Background - Massive patch review (Sub-Register Live Range Analysis for NEON/VFP et al) - LLVM Sync and EuroLLVM meetings == Plan == * Continue investigating performance problems in EEMBC * Check Odroid XU internal buildbot for stability

11 years, 9 months

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Error

by Rick

Hi Term, I have try to us "crosstool-ng-linaro-1.13.1-4.8 "to build myself cross tool chain, but some problem happened,just before I have used crosstool-ng offcial version, every thing is fine,I have got my toolchain, my operation system is Ubuntu 12.10, when I change to crosstool-ng-linaro, I am follow these steps. ct-ng list-samples, ct-ng linaro-arm-linux-gnueabihf ct-ng menuconfig I just change Local tarballs directory ,Prefix directory ,and change target os from prebuilt to linux, then,I build it,first time error happened at step "cc_core_pass_1 ",I google it and found out it is about multilib,I need to install gcc-multilib and g++-multilib, then,I continue,this time,error happened at step"cc_core_pass_2 ". related messages in build.log: [ALL ] Supported emulations: armelf_linux armelf armelfb armelfb_linux [ERROR] collect2: error: ld returned 1 exit status [ERROR] make[4]: *** [libgcc_s.so] Error 1 [ALL ] make[4]: Leaving directory `/work/software/cortexa9-linaro-build/.build/arm-linux-gnueabihf/build/build-cc-core-shared/arm-linux-gnueabihf/arm-linux-gnueabi/libgcc' [ERROR] make[3]: *** [multi-do] Error 1 [ALL ] make[3]: Leaving directory `/work/software/cortexa9-linaro-build/.build/arm-linux-gnueabihf/build/build-cc-core-shared/arm-linux-gnueabihf/libgcc' [ERROR] make[2]: *** [all-multi] Error 2 [ALL ] make[2]: Leaving directory `/work/software/cortexa9-linaro-build/.build/arm-linux-gnueabihf/build/build-cc-core-shared/arm-linux-gnueabihf/libgcc' [ERROR] make[1]: *** [all-target-libgcc] Error 2 [ALL ] make[1]: Leaving directory `/work/software/cortexa9-linaro-build/.build/arm-linux-gnueabihf/build/build-cc-core-shared' [ERROR] [ERROR] >> [ERROR] >> Error happened in: main[scripts/crosstool-NG.sh] so,I really don't know how to do now,any help is welcome.Thank you Cheers,Rick

11 years, 9 months

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Does Linaro aarch64 gcc toolchain support Cortex-A53/A57 performance tunning.

by Zenon Xiu

Hi team, In the GCC.pdf of gcc-linaro-aarch64-none-elf-4.8-2013.08, it says that -mcpu supports cortex-a53, but when I tried to build a simple hello bare metal application with -mcpu=cortex-a53 option, gcc reports, Error: unknown cpu `cortex-a53' Error: unrecognized option -mcpu=cortex-a53 Could you please confirm whether Cortex-A53/A57 performance tunning is supported? Thanks. Best Regards. ------------------------------------------------------------------ Zenon Xiu -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782

11 years, 9 months

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[ANNOUNCE] Aarch64 toolchain binaries respin 2013.09-01 released

by Bernhard Rosenkränzer

We have spotted a problem with the GOT layout in binaries generated by the 2013.09 Aarch64 toolchain, causing them to crash on startup. New builds fixing this issue are now available at http://releases.linaro.org/13.09/components/toolchain/binaries The arm-linux-gnueabihf and arm-none-eabi toolchains are not affected by this problem - there is no respin version for those builds. 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: http://releases.linaro.org/13.09/components/toolchain/binaries 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.

11 years, 9 months

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[ACTIVITY] Week 40

by Will Newton

== Progress == * Committed glibc ARM pointer encryption support. * Committed binutils AArch64 ifunc support. * Committed glibc malloc test patches. * Committed glibc setjmp/longjmp Thumb patches. * Backported glibc aarch64 gprof support. * Submitted qemu AArch32 VSEL patch. * Backported binutils AArch64 GOT layout patches. == Issues == * None == Plan == * Backports for 2013.10 * Follow up qemu patch * malloc -- Will Newton Toolchain Working Group, Linaro

11 years, 9 months

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[ACTIVITY] 29 Sept-4 Oct 2013

by Christophe Lyon

== Progress == * AArch64 frame grows downward: no feedback yet. * Disable-peeling: Vectorizer cost model has been changed upstream, the current default now includes the effect of disabling peeling. I have submitted benchmark jobs to check the exact effet; expecting some regressions since the reduced test case I was working on now generates the same code as with my patch. * AArch64 bootstrap failure: build it still on-going, so still hoping to reproduce it. * GCC trunk validation: - good progress on reporting - cross-validating several configurations (currently 18) for each upstream commit is too much for our compute farm to handle. Reduced to patches related to ARM/AArch64, but then we can miss regressions caused by other generic patches. * Backports: - committed a few simple ones. == Next == * AArch64 frame grows downward: continue * Disable-peeling/new vectorizer cost model: analyze bench results * Backports : check which ones can be reasonably done

11 years, 9 months

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[ACTIVITY] Week 40

by Yvan Roux

== Issues == * None. == Progress == * 2013-10 release. - Reviewed some backports. * LRA on AArch32: - Testsuite analysis showed one remaining issue in ARM mode (with the movmisalignv8hi_neon_store insn handling). - Ran Benchmarks on Calxedas, some failures due to the same bug. - Benchmarks on tcpandas ongoing. - Benchmarks results analysis ongoing. == Next == * Continue on LRA.

11 years, 9 months

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[ACTIVITY] 28 September -1 October 2013

by Venkataramanan Kumar

== Progress == * libssp Updated review comments given by glibc maintainer and rerun tests. There are some test failures, suspecting issue in using ALIGN_UP/DOWN macro. Debugging them. * gprof support for aarch64 Upstreamed patches to GCC and backported to Linaro 4.8 branch. Closed the cards for gprof work. * 1-1 Meet with Christophe. == Plan == * Continue libssp support. * Restart Aarch64 boot strap in a server machine. * Book hotel ticket for connect. * PGO for aarch64

11 years, 9 months

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[Activity] Sept 30 - Oct 5

by Rob Savoye

== Progress == * Fixed my laptop's desktop by upgrading to saucy & Gnome 3.10. * Continuing with Jenkins/Cbuildv2/Git integration. Since this is an ongoing task, I think I'm going to stop listing it every week. :-) * Fixed more bugs in Cbuildv2 when handling branches and revisions. * Compared source tarballs for binutils and gcc, Linaro releases against Cbuildv2 produced ones. * Added support to Cbuildv2 for building binutils source releases in the same style as src-release. * Worked on aarch64 builds on real hardware to test adding libatomic and go to builds. * Added support to build all documentation, which is used when building tarballs. * Reviewed and applied Cbuildv2 patches from Ryan. == Plan == * Try to work around problem with importing test results. * Continued work on release building via Cbuildv2. * Get Odroid boards working reliably, ordered AC powered USB hubs to work around problem with exterrnal USB drives.

11 years, 9 months

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[ACTIVITY] 30 September - 4 October 2013

by Omair Javaid

== Progress == * Traveled to Islamabad for US Visa Interview, got verbal confirmation of visa. Passport will be back this week. (TCWG-250) * GDB ARM Process Record Thumb32 Support: Submitted a new patch upstream which fixed bugs. (TCWG-270) * Tested arm process record bug fixes in various configurations to get pass rate statistics for the new patch. (TCWG-280) * Reviewing changes required for syscall support for gdb arm process record. == Plan == (TCWG-267), (TCWG-268) and (TCWG-269) * Ping or Send response to comments. (TCWG-280) * Start implementation and complete most part of coding next week. * If Passport comes back with visa stamped: plan/book travel to US, gather connect related information and notify all concerned.

11 years, 9 months

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[ACTIVITY] Sept 29 - Oct 4

by Kugan

== Progress == * Lnaro 4.8 Bugfix - Fixed Bugs LP1232017 and LP1234060 - gmp and mpfr make check now clean * spec2k comparison between ARM and x86 - Looked at register allocation issues - Started working on slides for connect == Plan == * Continue with spec2k comparison between ARM and x86 * Start again with 64bit division == Misc == * October 7th Public Holiday.

11 years, 9 months

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