linaro-toolchain

linaro-toolchain@lists.linaro.org

12 participants
5687 discussions

by Yvan Roux

== Issues == * none == Progress == * LRA on AArch32: o TCWG-343 : Make LRA the default for the ARM backend (0/10) - No progress this week. o TCWG-345 : Analyse performance of LRA for ARM. (3/10) - Continue analysis on Cortex-a15. * LRA on AArch64: (2/10) o Start to look at PR 59222 (ICE with ILP32). * Branch merge and backports reviews. (2/10) * Continued Linaro 4.8 release performance on Cortex-a15. (2/10) * Various meetings. (1/10) * Misc: o start to prepare AArch64 toolchain status for Connect session. == Next == * Continue the on-going tasks * 4.8 2014.02 Engineering release

12 years, 1 month

[ACTIVITY] 3-7 February 2014

by Christophe Lyon

== Progress == * Libsanitzer for AArch64: (3/10) - QEMU patch to handle missing mmap flag accepted. - Charles was able to build GCC + run the sanitizer tests on board - cleanup patch, ready to be sent to the LLVM list for approval * Cross-validation: (1/10) - extending timeout to 5h for aarch64-linux seems to be sufficient when using qemu-aarch64 * 2014.02 release preparation: (4/10) - branch merge - backported new vectorizer cost model (cheap, dynamic, unlimited), and ran some benchmarks. - asked Kugan to check the few improvements observed when using -fvect-cost-model=unlimited - reviewed Crypto intrinsics backport from Michael Collison. Discussed the use of gerrit+jenkins with him and Rob. - Charles ran the validation of the Crypto intrinsics backport on AArch64 hardware - I cross-validated it using binutils-linaro-2.24-2013.12, to make sure we release components capable enough to interoperate. - upgrading binutils in cbuildv1/tcwg-web would help, until we can switch to jenkins+cbuildv2+gerrit * Misc (2/10): conf-calls, meetings == Next == * libsanitizer on AArch64: post patch to LLVM list * crypto intrinsics: commit patch for 2014.02 release

12 years, 1 month

[ACTIVITY] 3 - 7 Feburary 2014

by Omair Javaid

== Progress == * Short week: Public holiday on Wednesday 5th Feburary 2014. [2/10] * Ran gdb testsuites for arm and x86 (native + remote) with all in progress patches applied. [1/10] * Investigated and triaged arm only failures. [2/10] * Investigated gdb.dwarf2/implptr-64bit.exp failure and submitted patch to disable it for 32-bit targets.[2/10] * Installation and configuration of new desktop machine. [1/10] * Investigation of stack unwinding failures on arm. [1/10] * Investigation of work required to implement record and replay on aarch64. [1/10] == Plan == * Setup gdb for aarch64 and try to run a demo application. * Investigate remaining arm only failures in gdb for arm and work towards closeout of CARD-321. * Travel to Islamabad to receive passport back from Chinese embassy for Macau visa.

12 years, 1 month

[ACTIVITY] February 3-9

by Maxim Kuvyrkov

== Week of February 3rd == - Various administrative bits and account setup. (6/10) - Worked my way through to getting access to LAVA board lab. Tried to reproduce performance regression on STREAM benchmark. (2/10) - Public holiday. (2/10) == Week of February 10th == - Continue account setup. Get work environment up. - Get to know the team. - Continue investigation of STREAM benchmark. -- Maxim Kuvyrkov www.linaro.org

12 years, 1 month

[ACTIVITY] Week 05 & 06

by Zhenqiang Chen

== Issues == * None == Progress == * Jan. 31 - Feb. 6: Chinese Spring Festival holidays . * Test codes to duplicate shared compares to get more conditional compares. But still get unexpected bootstrap fail on Chrome book. * Test codes to enable shrink-wrap for TARGET_APCS_FRAME. * Update patch for PR 59837. * Create a reference linaro-arm-linux-gnueabihf-raspbian build . == Plans == * Tuning ccmp performance * Enable shrink-wrap for TARGET_APCS_FRAME.

12 years, 1 month

[ACTIVITY] 3 -7 February 2014

by Kugan

== Progress == - Started implementing TARGET_ATOMIC_ASSIGN_EXPAND_FENV (5/10) - Regression testing with the implementation; found some issues and discussed with Matt - Working on fixing them - Patch for Vectorizer generates unaligned access when -mno-unaligned-access committed upstream (2/10) - This also triggered some regression with ARMv5 and looking into them (2/10) - Set-up qemu aarch64 for gcc testing (1/10) == Plan == - Check ARMv5 regression for unaligned access - Look into vectorizer cost model/benchmarking

12 years, 1 month

Yocto Build of Toolchain with package tool rpm doesn't like the "dash" in the Release

by Gary Hannon

This is an attempt to build TI mcsdk 3.0.3.15 with bitbake tisdk-server-rootfs-image It fails trying to make rpms for the linaro toolchain. | DEBUG: Python function write_specfile finished | DEBUG: Executing shell function BUILDSPEC | error: line 4: invalid tag value("^[A-Za-z0-9+._]+$") Release: Release: r2-arago3 | error: Package has no %description: external-linaro-toolchain-2.15.armv7ahf_vfp_neon | Building target platforms: armv7ahf_vfp_neon-oe-linux-gnueabi | DEBUG: Python function do_package_rpm finished | DEBUG: Python function do_package_write_rpm finished | ERROR: Function failed: BUILDSPEC (see /home2/ghannon/keyDSP/build/mcsdk/build/arago-tmp-external-linaro-toolch ain/work/armv7ahf-vfp-neon-oe-linux-gnueabi/external-linaro-toolchain-20 13.03-r2-arago3/temp/log.do_package_write_rpm.8491 for further information) ERROR: Task 40 (/home2/ghannon/keyDSP/build/mcsdk/sources/meta-linaro/recipes-devtools/ external-linaro-toolchain/external-linaro-toolchain.bb, do_package_write_rpm) failed with exit code '1' If I change Release: r2-arago3 to not have a - in the spec file then I can build the rpms manually with the same command. Is there a place where I can change that globally? Gary Hannon Sr. Software Engineer CSP Inc. 43 Manning Road Billerica, MA 01821 978-663-7598 x1509 ghannon(a)cspi.com

12 years, 1 month

[ACTIVITY] Week 6

by Renato Golin

== Progress == * IAS - Having a go at .dn/.qn aliases - Some Dwarf 2/3 discussions, kernel build flags, etc * EHABI - Tables being generated even when no EH in C - Will need some tinkering in Clang and LLVM - Huge discussion about EHABI, Dwarf unwinding and exception tables - Starting the refactory of EHABI to cope with the differences * Compiler-RT - Finding the best way to use compiler-RT with Clang (not an easy task!) * Background - Usual patch reviews & discussions - Mapping AArch64 features implemented for Connect session - Playing with the Calxedas for some benchmarks * Time - CARD-862 8/10 - Others 2/10 == Plan == * Continue with EHABI refactoring * Implement --rtlib in Clang for compiler-rt usage * Continue .dn/.qn implementation

12 years, 1 month

[ACTIVITY] 3 -7 February 2014

by Will Newton

== Progress == * 3 day week * Further work on longjmp/setjmp Systemtap probes on ARM (1/10, TCWG-378) * Research and analysis of malloc workloads for benchmarking (5/10, TCWG-160) == Issues == * None == Plan == * More work on an application level malloc benchmark framework * Resurrect glibc benchmark graphing script * newlib release * gdb 7.7 release (build an rc to troubleshoot releasing from git) -- Will Newton Toolchain Working Group, Linaro

12 years, 1 month

kernel support for cortex A8 hardware watchpoints

by Marc Kleine-Budde

Hello Ulrich, I'm on a freescale mx53 (single core, cortex a8) and trying to find a nasty problem in our $CUSTOMER's application. Working hardware watch point support in gdb should solve the problem, or at least brings us a big step forward. I stumbled over your about three years old thread[1] about the cortex a8 memory mapped debug registers problem. Do I understand correctly, that you had a8 watch point running on at least one board? Have you got any code and or pointers to get watch point support running? regards, Marc Kleine-Budde [1] http://lists.linaro.org/pipermail/linaro-toolchain/2011-February/000820.html -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |

12 years, 1 month

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