linaro-toolchain

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5603 discussions

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, 8 months

[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, 8 months

[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

[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

[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

[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

[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

[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

[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

[ACTIVITY] Sept 29 - Oct 4

by Ryan Arnold

== Progress == * Finished most new employee onboarding * Setup Chromebook with Linux Ubuntu (crouton) development environment. * glibc [PATCH] Update generic swapon definition to match prototype. * CBuildV2 [PATCH] Fix stamp-configure* name for git repos with specific named branches [PATCH] Only return early on error following configure [PATCH] Remove dryrun wrapper from git-new-workdir invocation. [PATCH] Fix stamp name for git repos with specific named branches. [PATCH] Remove lynx check from configure[.ac]. It's no longer used. Started working on a patch to fix git working directory branch name for named branches. == Plan == * Install Fedora 19 on work laptop that just (Oct 4) arrived and setup working environment. * Finish first-pass fixes on cbuildv2. * Complete patch to fix git working directory branch name. * Start working on a glibc.git conf file to potentially move away from eglibc.git. * Fix cbuildv2 fetch time stamps. They seem to always be downloading tar balls. * Fix stamp output so that it doesn't imply that stamps or older than a file when stamps do not yet exist. == Issue == * Temporary desktop corruption and couldn't Linux 'rescue' from an encrypted drive. Spent part of Tuesday rescuing my work environment off the drive and reinstalling system.

11 years, 9 months

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