- linaro-toolchain - lists.linaro.org

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

11 years, 4 months

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[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.

11 years, 4 months

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[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

11 years, 4 months

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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

11 years, 5 months

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[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

11 years, 5 months

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[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

11 years, 5 months

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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 |

11 years, 5 months

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Linaro GNU Compiler (GCC) toolchain : for Renesas RZ (ARM Cortex-A9) + FreeRTOS (Demo Project)

by Steffen Sprung

*Hi LINARO-TEAM,* I would like start a software development on a “Renesas RZ (ARM Cortex-A9) MPU (R7S721010xxx” by using Eclipse IDE (Kepler - 4.3.1). > Global objective = Use free SW development tools I have read, that the “Linaro GCC Toolchain Release Supports Full Range of ARM Cortex-A Processors” and it’s an open source software for the ARM architecture, including the GCC toolchain. > Well – I think that is what I need. So, I have installed the Linaro Toolchain (gcc-arm-none-eabi-4_7-2013q3-20130916-win32.exe) and test the compilation of the “*Hello World ARM C Project*” for the Target Processor “cortex-A9” > So, the compilation is OK. *NOW, I would like prepare a small TEST-Project with FreeRTOS.* FreeRTOSV8.0.0_Release_Candidate_2 > I have found the “Renesas RZ (ARM Cortex-A9) RTOS Demo”: http://www.freertos.org/Renesas_RZ_Cortex-A9-RTOS.html But the two projects are provided to be built with the* IAR Embedded Workbench <http://www.iar.com/ewarm>* or the *ARM DS-5 <http://arm.com/products/tools/software-tools/ds-5/index.php> embedded development tools*. > I have seen that the DS-5 Development Studio is not for free but it use also the Linaro GNU Compiler (GCC) toolchain. So, I have tried to import the “Renesas RZ (ARM Cortex-A9) RTOS Demo” project to Eclipse, *but the import doesn’t work – and I’m not sure that the project uses the Linaro GNU GCC Compiler**.* > I think that Demo project for DS-5 use also special plugins/configuration settings from the Development Studio – so this can’t work ?!… *HELP:* *I’m new in the “Eclipse IDE / Compiler (GCC) toolchain” WORLD … * So, can you help me to give me a good direction - *what I need to do *to make running this small “Blinky-Demo for Renesas RZ (ARM Cortex-A9) with the FreeRTOS” by using the Linaro GCC Toolchain. > Or have you another small Demo project for the Linaro GCC Toolchain which uses the FreeRTOS for the Renesas RZ (ARM Cortex-A9) family? … Or you think that is not easily possible to do that for a Newcomer like me? I hope that you can help me to put me on the right road. Best regards, *Steffen SPRUNGACTIA Automotive* ================= Software Engineer ================= *ACTIA* Automotive 5 Rue Jorge SEMPRUN – BP 74215 31432 TOULOUSE Cedex 4 (FRANCE) Tél.: + 33 (0)5 61 17 68 75 Fax: +33 (0)5 61 55 42 31 Skype: steffen.sprung EMAIL: steffen.sprung(a)actia.fr ACTIA: http://www.actia.com [image: image001] *P* Avant d’imprimer ce mail, demandez-vous si ceci est nécessaire. Before printing this email, assess if it is really needed.

11 years, 5 months

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systemtap test suite compilation failed: runtime/vma.c :133:21: error: pointer targets in initialization differ in signedness

by Naresh Kamboju

Hi, The systemtap test suite compilation failed with below error. ARCH: arm --------------- kernel location: kernel version: 3.13.0-1-linaro-arndale systemtap location: /usr/local/bin/stap systemtap version: version 2.5/0.157, non-git sources gcc location: /usr/bin/gcc gcc version: gcc (Ubuntu/Linaro 4.8.1-10ubuntu8) 4.8.1 **** failed systemtap kernel-devel smoke test: In file included from /usr/local/share/systemtap/runtime/sym.c:16:0, from /usr/local/share/systemtap/runtime/linux/runtime.h:198, from /usr/local/share/systemtap/runtime/runtime.h:24, from /tmp/stapvEzrD5/stap_f7468ebd0051d533d2bae853173fe5a7_892_src.c:24: /usr/local/share/systemtap/runtime/vma.c: In function '_stp_vma_mmap_cb': /usr/local/share/systemtap/runtime/vma.c:133:21: error: pointer targets in initialization differ in signedness [-Werror=pointer-sign] const char *name = (dentry != NULL) ? dentry->d_name.name : NULL; ^ cc1: all warnings being treated as errors make[4]: *** [/tmp/stapvEzrD5/stap_f7468ebd0051d533d2bae853173fe5a7_892_src.o] Error 1 make[3]: *** [_module_/tmp/stapvEzrD5] Error 2 WARNING: kbuild exited with status: 2 Pass 4: compilation failed. [man error::pass4] **** aborting testing. Please let me know if you need more information. Best regards Naresh kamboju

11 years, 5 months

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[ACTIVITY] 27 - 31 January 2014

by Omair Javaid

== Progress == * Fixed remaining issues in rework of hwbreakpoint and watchpoint implementation for arm native targets. Tested and submitted patch. [TCWG-177] [8/10] * Installation and Setting up of new desktop machine. [2/10] == Plan == * Run testsuites to see current status of arm gdb. * Follow up on submitted patches. * Public holiday on Wednesday 5th February.

11 years, 5 months

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[ACTIVITY] 27-31 Januery 2014

by Christophe Lyon

* Libsanitizer for AArch64: (4/10) - seems to be mostly working, but trouble with validation both using the Foundation Model and qemu-aarch64. - Some tests seems to loop forever while unwinding under qemu, but run fine under the Foundation model - Conversely the Foundation Model shows some random errors, and the corresponding tests pass under qemu - Some random timeouts with the Foundation Model, despite using ssh multiplexing - Added a small patch to qemu to hande missing mmap flag. Need to send upstream. - asked Rob to run GCC testsuite with my patch on AArch64 but it's too unstable these days * Cross-validation (2/10) - script now able to validate a GCC patch and compare results with unmodified GCC trunk - added arm-none-eabi target - using qemu-aarch64 for aarch64-none-linux-gnueabi but the validations now time out. Need investigation, but I might have to revert to no execution for this target. - identified a problem with the recent armv7-ve patch * Benchmarks: (1/10) - collecting data for 4.8 tables * Peeling: (1/10) - backported new vectorizer cost model to check it if's OK to include it in our next release * Misc (2/10): conf-calls, meetings, docs (howtos for TCWG) == Next == * libsanitizer on AArch64 * fix cross-validation on aarch64-none-linux-gnu * benchmarks: complete table * backports: chek new vectorizer cost model, monthly branch merge, review Michael's backports of Crypto intrinsics

11 years, 5 months

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[ACTIVITY] Week 5

by Yvan Roux

* 2 days week (university & child care). == 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. (1/10) - Configured and ran benchmarks on Cortex-a15. * Looked at Linaro 4.8 release performance on Cortex-a15. (2/10) * Misc. (1/10) o Booked Hotel and flight for connect == Next == * Back on LRA and lib GMP

11 years, 5 months

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[Activity] 27 Jan - 31 Jan 2014

by Venkataramanan Kumar

== Progress == * Investigate "PGO" for Aarch64 (3/10). Bootstap testing aarch64 with PGO for GCC.Stage 2, feedback profile in progress. Tested a small test case for -fbranch-probabilities, works same as x86_64. Working on checking the "gcda" files generated and profile runs for coremark. * Cbuild2 discussed with rob, ryan on using cbuild2 for developement. (3/10) Thanks Rob for fixing some issues and adding features that I requested. Tested some features added. Captured it as FAQ. * Reinstalled ubuntu OS on my laptop (2/10) Misc (2/10) ------------- AMD internal meetings and did some investigations == Plan == - Continue run EMBCC and coremark benchmarks with -PGO enabled. - Going on marriage vacation from 07-Feb till 06 March == Issues=== Follow up upstream libssp GCC discussions. No response yet after 2 pings :(

11 years, 5 months

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[ACTIVITY] 27 - 31 January 2014

by Kugan

== Progress == * 4 Day week (Monday Public Holiday) (6/10) * Posted patches for bugs assigned https://sourceware.org/ml/binutils/2014-01/msg00332.html http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60034 http://gcc.gnu.org/ml/gcc-patches/2014-02/msg00048.html * TARGET_ATOMIC_ASSIGN_EXPAND_FENV implementation (2/10) Looked at glibc implementations of required functionality == Plan == * Finish TARGET_ATOMIC_ASSIGN_EXPAND_FENV implementation * Follow up on patches if required

11 years, 5 months

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[Activity] Jan 27-Feb 2

by Rob Savoye

== Progress == * Got binary release building working again. (2/10) * Added a node_selector to Jenkins for the new Beagle Board Blacks, and get those working for native builds. (TCWG-379, 1/10) * Fix configuration of 'build-all' project in Jenkins, now fires up cross builds for supported targets, plus native builds on Chromebooks and Beagle Board Blacks. (1/10) make networking route externally. (TCWG-380) * Meetings and Misc. (3/10) * Got TCWG build farm, all nodes offline fixed. * Wrote wiki page on the build farm. * Updated Java to 1.6 on the Beagle Board Blacks in the TCWG build farm. * Added support to specify an alternate prefix for installation. * Got QEMU and Foundation Model running on TCWG x86_64 build slaves so Jenkins can use them for native builds. (TCWG-380 - 2/10) * Got Rasberry PI softfp image running under QEMU, tried to do build. (TCWG-380 - 1/10) == Plan == * Build static gdbserver for target via Cbuildv2. * Add Win32 installer for Canadian cross built binary releases to Cbuildv2. * Get Kugan's benchmark branch running on build farm. * More Jenkins maintainance. == Potential Leave == * Still working out the huge amount of details, but strongly considering going to Mt Everest after Connect. It'd be a long and rough trip, but a once in a lifetime opportunity.

11 years, 5 months

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[Weekly] 26-31 JAN 2014

by Michael Collison

== This week == - Successfully submitted crypto using git-review - Completed merge of ILP backports from trunk to Linaro 4.8 branch: 201164, 201165, 201166, 201167, 201168, 201170 and 201175 - Attended ARM architecture training on Friday == Next week == - Submit ILP backports for review using git review - New backports == Future ==

11 years, 5 months

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[ACTIVITY] 27 - 31 January 2014

by Will Newton

== Progress == * Rework QEMU patch for AArch32 ARMv8 16<->64bit VCVT (2/10, TCWG-51) * Further work on longjmp/setjmp Systemtap probes on ARM (4/10, TCWG-378) * Research and analysis of malloc workloads for benchmarking (4/10, TCWG-160) == Issues == * None == Plan == * Finish testing setjmp/longjmp changes * malloc benchmarking and improvements -- Will Newton Toolchain Working Group, Linaro

11 years, 5 months

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[ACTIVITY] Week 5

by Renato Golin

== Progress == * EHABI - Turning EHABI on by default on non-Darwin ARM - Had to add some relocations to MCJIT - Re-enabled EH tests on test-suite - Check-all, self-hosting and test-suite bots green * Compiler-RT - Enabling RT+San libraries to compile on ARM - Changing Clang to look for the generic libraries (arm, not armv7l) * MCJIT - Remote protocol fixed, all tests passing on self-hosting bot - All tests re-enabled on ARM * Background - More IAS, Compiler RT patch reviews - Buildbot cleaning up before every build (more stable) - Cambridge LLVM Social - Rumours that LLVM can compile the kernel with the integrated assembler on ARM * Time - CARD-862 8/10 - Others 2/10 == Plan == * FOSDEM - Talking about LLVM auto-vectorization this Sunday * EHABI - ARM detected some conflicts with Dwarf stack unwinding, investigate Compiler-RT - Run test-suite, benchmarks, applications with it * IAS - Confirm the rumours about the kernel compiling clean - Pick up some remaining task to implement

11 years, 5 months

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TARGET_ATOMIC_ASSIGN_EXPAND_FENV

by Kugan

I had a look at the missing target hook TARGET_ATOMIC_ASSIGN_EXPAND_FENV to fix the C11 memory model testcase in regressions in trunk. I looked at the x86 implementation of this target hooks and x86 has instructions (FNSTENV,FLDENV,FNSTSW,FNCLEX) for feholdexcept, feclearexcept and feupdateenv. Does ARM has something similar? Any pointers/links I can refer to. Please see the gcc internal documentation for the target hook below. — Target Hook: void TARGET_ATOMIC_ASSIGN_EXPAND_FENV (tree *hold, tree *clear, tree *update) ISO C11 requires atomic compound assignments that may raise floating-point exceptions to raise exceptions corresponding to the arithmetic operation whose result was successfully stored in a compare-and-exchange sequence. This requires code equivalent to calls to feholdexcept, feclearexcept and feupdateenv to be generated at appropriate points in the compare-and-exchange sequence. This hook should set *hold to an expression equivalent to the call to feholdexcept, *clear to an expression equivalent to the call to feclearexcept and *update to an expression equivalent to the call to feupdateenv. The three expressions are NULL_TREE on entry to the hook and may be left as NULL_TREE if no code is required in a particular place. The default implementation leaves all three expressions as NULL_TREE. The __atomic_feraiseexcept function from libatomic may be of use as part of the code generated in *update. Thanks, Kugan

11 years, 5 months

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[ACTIVITY] 20 - 24 January 2014

by Christophe Lyon

== Progress == - releases (3/10) * GCC 4.7 and 4.8 releases done * more cbuild2 feedback - cross-validations (2/10) * followup * adding capability to test a patch over a given revision on several targets/cpu/fpu/runtestflags - libsanitizer on AArch64 (3/10) * most tests are now functional * still some errors in the GCC testsuite, to be analyzed (there are some timeouts, too despite using SSH multiplexing to the Foundation model) - misc (2/10): conf-calls and meetings == Next == - libsanitizer on AArch64: analyze errors, try QEMU == Future == On sick leave starting Feb 11th

11 years, 5 months

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[Activity] 20 Jan - 24 Jan 2014

by Venkataramanan Kumar

== Progress == * Libc probes support for Aarch64 (2/10). Wrote a small patch for setjmp and longjmp LIBC probe. Requested "will newton" to test them . * Investigate "PGO" for Aarch64 (3/10). Bootstap testing GCC with PGO for GCC. Stage 2, feedback profile in progress. Ran coremark on foundation model with PGO. The benchmark builds with profile-generate and runs. "gcda" files are generated and uses them to profile. Profile generated runs does not run cleanly. Cross checking if the generated profile is valid. * Resubmmited libssp machine description support in GCC (2/10). * Cbuild2 discussed with rob, ryan on SYSROOT installation while building (1/10) cross compiler for aarch64. "SYSROOT" is expected to be in /opt/linaro, but cbuild2 does not do this by default. Misc (1/10) ------------- AMD internal meetings and did some investigations == Plan == - Run EMBCC benchmarks with -PGO enabled. - Follow up upstream libssp GCC discussions.

11 years, 5 months

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[ACTIVITY] Week 4

by Yvan Roux

* 4 days week (university). == Issues == * none == Progress == * LRA on AArch32: o TCWG-343 : Make LRA the default for the ARM backend (3/10) - Looking backend places (ARM and AArch64) where reload_in_progress is used to verify if lra_in_progress is needed as well: Tested lot of configurations, testsuite results analysis ongoing. o TCWG-345 : Analyse performance of LRA for ARM. (0/10) - No progress this week. * GMP library AArch64 port review: (4/10) o Analyzing code generated from C generic implementation vs assembly. * Misc. (1/10) o Various meetings. == Next == * Child care (chickenpox) * Still some time spend at university * Continue on LRA and lib GMP

11 years, 5 months

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[ACTIVITY] 20 - 24 January 2014

by Omair Javaid

== Progress == * Implemented per process hwbreakpoint and watchpoint cache for arm native targets. Also added a reference count for per thread hardware breaks. [TCWG-177] [7/10] * Travelled to Islamabad for Macau visa application. [3/10] == Plan == * Continue work on forking/vforking hardware breakpoints support for arm-native. Tweak hardware breakpoint cache and thread breaks reference count to get it in sync with linux-native. [TCWG-177]

11 years, 5 months

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[ACTIVITY] 20 - 24 January 2014

by Kugan

== Misc == - Monday 27/01/2014 - Public holiday == Progress == - LP#1191909: gold and -flto always fails with an internal error on arm-linux-gnueabi* (2/10) - Reproduced it and Looking into the implementation for best fix. -c11-atomic-exec-5.c (4/10) - Issue is due to missing target hook and looking at implementing -LP#1270789: gcc 4.8: "invalid expression as operand" in aarch64 inline asm (2/10) - came-up with the patch. Still in the process of testing it. APM1 disc seems to be corrupt and that is holding this. - Benchmarking (1/10) - added -pgo for coremark - Set-up a Linux desktop (1/10) == Plan == - Continue with trunk daily regression - Fix assigned bugs

11 years, 5 months

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[ACTIVITY] Week 04

by Zhenqiang Chen

== Issues == * None == Progress == * Investigate to duplicate shared compares to get more conditional compares. * Investigate to enable shrink-wrap for TARGET_APCS_FRAME. Still some ICE fails in regression tests. * Help on cbuilv2 eglibc multilib build issues. == Plans == * Tuning ccmp performance * Enable shrink-wrap for TARGET_APCS_FRAME. == Planed leaves == * Jan. 31 - Feb. 10.

11 years, 5 months

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