- linaro-toolchain - lists.linaro.org

[Weekly] 28 APR - 02 MAY 2014

by Michael Collison

== This week == - Investigated infinite loop bug [TCWG-290][6/10] - Narrowed bug down to data flow analysis of micro operation in variable tacking pass - Created bugzilla report - Still debugging to determine cause of infinite loop == Next week == - Attend ARM Big Picture conference, May 5th-7th - Resolve infinite loop bug == Future ==

11 years

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[Activity] April 28 - May 4

by Rob Savoye

== Progress == * More work on regression test analysis and reporting. (TCWG 448 - 2/10) * Started adding LAVA support to DejaGnu. (TCWG 455 - 4/10) * Meetings and Misc (4/10) - Fixed various bit-rot bugs in the cbuildv2 testsuite. - Figured out how to add SSH keys to our launchpad account. == Plan == * Continue improving LAVA support in DejaGnu. (TCWG 455) * More work on regression test analysis and reporting. (TCWG 448)

11 years, 1 month

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[ACTIVITY] 28th April - 2nd May 2014

by Venkataramanan Kumar

== Progress == Bug fix PR60617 (3/10) Triage the bug, looks like trunk r209897 fixes the issue. LTO- AArch64 (TCWG-180) (2/10) * Went though LTO documentation on GCC wiki. * Cross compiling SPEC2006 benchmarks with LTO. * Attend internal AMD meeting/Work(2/10). Misc (1/10) * Maxim 1-1 discussions and set up opennx client * Ryan 1-1 discussions Worker's Day leave (2/10)) == Plan == * LTO enablement on Aarch64 * Bug fixing

11 years, 1 month

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[ACTIVITY] 28th April - 2nd May 2014

by Omair Javaid

== Progress == * GDB reverse debugging on aarch64 -- Further progress on decoding of aarch64 load store instructions. [TCWG-401] [1/10] * Investigated and progressed towards fix for GDB unable to read core files [TCWG-451] [6/10] * Public Holiday on 1st May [2/10] * Miscellaneous [1/10] -- Meetings -- UK visa documents attestation -- LCU14 registration and travel booking == Plan == * GDB unable to read core files [TCWG-451] -- Fix aarch64 linux regset functions -- Add support for writing aarch64 regset in aarch64 core file. * Miscellaneous -- UK visa application -- LCU14 finalize bookings.

11 years, 1 month

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[ACTIVITY] 28 April - 2 May 2014

by Kugan

== Progress == * TCWG-447 (5/10) * Re-spin few versions of the patches and posted after testing based on reviews. * http://gcc.gnu.org/ml/gcc-patches/2014-04/msg01743.html * http://gcc.gnu.org/ml/gcc-patches/2014-04/msg01744.html * TCWG-413 Spec2006 (5/10) * Updated the scripts to deploy libraries and to run cross spec benchmarking with them. * Experimented with open embedded image generation for benchmarking- still finding some issues even with a trusty chroot. * Started benchmarking and variance analysis. == Plan == * Benchmarking. * Upstream zero/sign extension elimination activities. * Start with literal pool merging.

11 years, 1 month

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[ACTIVITY] 28-30 April, 2014

by Christophe Lyon

Very short week (3 half days) == Progress == * GCC trunk cross-validation (2/10): - monitored results, and reported some regressions/new fails - moved away from Jenkins - as commit rate has decreased, there is no backlog in validations * Neon-intrinsics test (1/10): - Continuing conversion for inclusion in the GCC testsuite. - Preparing an additional Makefile, simpler than the current one, to help using the testsuite for various GCC variants until conversion is complete. == Next == * Continue to closely monitor GCC trunk validations * Neon intrinsics tests * Off Thursday/Friday

11 years, 1 month

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[ACTIVITY] Week 18

by Yvan Roux

Short week, Labor day (2/10) == Issues == * None == Progress == * Launchpad bugs: (4/10) o LP #1307197 : gcc-4.9 miscompiles linux kernel zlib for armv3 - This an LRA issue for architectures < armv4 withi movhi - Investigation ongoing o LP #1169164 : including signal.h exposes various PSR_MODE #defines - The proposed patch fix the issue - Still need some validation before upstream submission * Test new backport workflow and Cbuild2 (2/10) - Some troubles to access the build farm. * Misc: o Cbuildv1 baby-sitting (1/10) o Various meetings (1/10). == Next == - Two days off - FSF branch merge + backports

11 years, 1 month

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[ACTIVITY] Week 18

by Zhenqiang Chen

== Issues == * None == Progress == * May 1-2: Laybor day holiday * Commit fcsel support patch for aarch64 @r209889. * Tuning move-loop-invariants heuristics for -fira-loop-pressure: - Record register pressure for each invariant other than a max for all. - Take register pressure into account when selecting the best candidate. == Plan == * Tuning move-loop-invariants heuristics * Ping pending patches. == Planned leaves == * June 2. * -fno-sched-interblock * loop-inv

11 years, 1 month

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Re: Problem building arm toolchain for x86_64 host system

by Reinier Millo Sánchez

> Hello, > I have a problem building gcc-linaro-arm-linux-gnueabihf > toolchain for my x86_64 system. I download crosstool-ng (v1.13) and > toolchain source code (4.8-2014.03) from > http://releases.linaro.org/14.03/components/toolchain/binaries. I use > the example configuration linaro-arm-linux-gnueabihf (obtained from > ct-ng list-samples) and modify some entries using menuconfig option, > like the local tarballs directory (pointing to downloaded toolchains > source code directory) and the prefix directory (custom directory output). > > This is the problem during the execution of "ct-ng build" command: > > ================================================================= > > [INFO ] Installing final compiler > > [EXTRA] Configuring final compiler > > [EXTRA] Building final compiler > > [EXTRA] AFMOYA: EMPIEZA A EJECUTARSE make jobsflags all > > [EXTRA] -j5 > > [EXTRA] /home/afmoya/Descargas/build/.build/arm-linux-gnueabihf/build/build-cc > > [ERROR] configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES. > > [ERROR] make[2]: *** [configure-zlib] Error 1 > > [ERROR] make[1]: *** [all] Error 2 > > [ERROR] > > [ERROR] >> > > [ERROR] >> Error happened in: main[scripts/crosstool-NG.sh] > > [ERROR] >> > > [ERROR] >> For more info on this error, look at the file: 'build.log' > > [ERROR] >> There is a list of known issues, some with workarounds, in: > > [ERROR] >> '/opt/cross-linaro/share/doc/ct-ng-linaro-1.13.1-4.8-2014.03/B - Known issues.txt' > > [ERROR] > > [ERROR] Build failed in step 'Extracting and patching toolchain components' > > [ERROR] > > [ERROR] (elapsed: 11:18.57) > > make: *** [build] Error 2 > > > Highlighted in green some entries added for me in attemp to understand > the execution secuence. > > The error is triggered in the "configure-zlib" target of > "${CT_TOP_DIR}/.build/arm-linux-gnueabihf/build/build-cc/Makefile". The > "configure.log" of the > "${CT_TOP_DIR}/.build/arm-linux-gnueabihf/build/build-cc/zlib/" > directory shows some errors (I don't know if the are significants): > > LINE 83: Thread model: posix > > LINE 84: gcc version 4.7.2 (Debian 4.7.2-5) > > LINE 85: configure:3234: $? = 0 > > LINE 86: configure:3223: x86_64-build_unknown-linux-gnu-gcc -V >&5 > > LINE 87: gcc: error: unrecognized command line option '-V' > > LINE 88: gcc: fatal error: no input files > > LINE 89: compilation terminated. > > LINE 90: configure:3234: $? = 4 > > LINE 91: configure:3223: x86_64-build_unknown-linux-gnu-gcc -qversion >&5 > > LINE 92: gcc: error: unrecognized command line option '-qversion' > > LINE 93: gcc: fatal error: no input files > > LINE 94: compilation terminated. > > ... > > LINE 188: configure:6661: x86_64-build_unknown-linux-gnu-gcc -E conftest.c > > LINE 189: conftest.c:11:28: fatal error: ac_nonexistent.h: No such file or directory > > LINE 190: compilation terminated. > > ... > > LINE 207: configure:6720: x86_64-build_unknown-linux-gnu-gcc -E conftest.c > > LINE 208: conftest.c:11:28: fatal error: ac_nonexistent.h: No such file or directory > > LINE 209: compilation terminated. > > ... > > LINE 318: configure:10852: x86_64-build_unknown-linux-gnu-gcc -E conftest.c > > LINE 319: conftest.c:23:28: fatal error: ac_nonexistent.h: No such file or directory > > LINE 320: compilation terminated. > > Some idea of what's the problem? > > This is my system info: > Linux afmoya-pc 3.2.0-4-amd64 #1 SMP Debian 3.2.57-3 x86_64 GNU/Linux > > and some tools version installed in my system: > gcc (Debian 4.7.2-5) 4.7.2 > GNU Make 3.81 > GNU Awk 4.0.1 > ... > > Best regards: > Alexis Fajardo Moya. I have removed the "zlib" folder from "gcc-linaro-4.8-2014.03.tar.xz" tarball, the compiler is also using zlib-1.2.5 statically linked, and thats permit compile the Linaro toolchain. Best regards Lic. Reinier Millo Sánchez Centro de Estudios de Informática Universidad Central "Marta Abreu" de Las Villas ----- "...hay locuras que son la locura personales locuras de dos... hay locuras sin nombre sin fecha sin cura que no vale la pena curar... que una de ellas será mi morir." Lic. Reinier Millo Sánchez Centro de Estudios de Informática Universidad Central "Marta Abreu" de Las Villas

11 years, 1 month

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Problem building arm toolchain for x86_64 host system

by Alexis Fajardo Moya

Hello, I have a problem building gcc-linaro-arm-linux-gnueabihf toolchain for my x86_64 system. I download crosstool-ng (v1.13) and toolchain source code (4.8-2014.03) from http://releases.linaro.org/14.03/components/toolchain/binaries. I use the example configuration linaro-arm-linux-gnueabihf (obtained from ct-ng list-samples) and modify some entries using menuconfig option, like the local tarballs directory (pointing to downloaded toolchains source code directory) and the prefix directory (custom directory output). This is the problem during the execution of "ct-ng build" command: ================================================================= [INFO ] Installing final compiler [EXTRA] Configuring final compiler [EXTRA] Building final compiler [EXTRA] AFMOYA: EMPIEZA A EJECUTARSE make jobsflags all [EXTRA] -j5 [EXTRA] /home/afmoya/Descargas/build/.build/arm-linux-gnueabihf/build/build-cc [ERROR] configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES. [ERROR] make[2]: *** [configure-zlib] Error 1 [ERROR] make[1]: *** [all] Error 2 [ERROR] [ERROR] >> [ERROR] >> Error happened in: main[scripts/crosstool-NG.sh] [ERROR] >> [ERROR] >> For more info on this error, look at the file: 'build.log' [ERROR] >> There is a list of known issues, some with workarounds, in: [ERROR] >> '/opt/cross-linaro/share/doc/ct-ng-linaro-1.13.1-4.8-2014.03/B - Known issues.txt' [ERROR] [ERROR] Build failed in step 'Extracting and patching toolchain components' [ERROR] [ERROR] (elapsed: 11:18.57) make: *** [build] Error 2 Highlighted in green some entries added for me in attemp to understand the execution secuence. The error is triggered in the "configure-zlib" target of "${CT_TOP_DIR}/.build/arm-linux-gnueabihf/build/build-cc/Makefile". The "configure.log" of the "${CT_TOP_DIR}/.build/arm-linux-gnueabihf/build/build-cc/zlib/" directory shows some errors (I don't know if the are significants): LINE 83: Thread model: posix LINE 84: gcc version 4.7.2 (Debian 4.7.2-5) LINE 85: configure:3234: $? = 0 LINE 86: configure:3223: x86_64-build_unknown-linux-gnu-gcc -V >&5 LINE 87: gcc: error: unrecognized command line option '-V' LINE 88: gcc: fatal error: no input files LINE 89: compilation terminated. LINE 90: configure:3234: $? = 4 LINE 91: configure:3223: x86_64-build_unknown-linux-gnu-gcc -qversion >&5 LINE 92: gcc: error: unrecognized command line option '-qversion' LINE 93: gcc: fatal error: no input files LINE 94: compilation terminated. ... LINE 188: configure:6661: x86_64-build_unknown-linux-gnu-gcc -E conftest.c LINE 189: conftest.c:11:28: fatal error: ac_nonexistent.h: No such file or directory LINE 190: compilation terminated. ... LINE 207: configure:6720: x86_64-build_unknown-linux-gnu-gcc -E conftest.c LINE 208: conftest.c:11:28: fatal error: ac_nonexistent.h: No such file or directory LINE 209: compilation terminated. ... LINE 318: configure:10852: x86_64-build_unknown-linux-gnu-gcc -E conftest.c LINE 319: conftest.c:23:28: fatal error: ac_nonexistent.h: No such file or directory LINE 320: compilation terminated. Some idea of what's the problem? This is my system info: Linux afmoya-pc 3.2.0-4-amd64 #1 SMP Debian 3.2.57-3 x86_64 GNU/Linux and some tools version installed in my system: gcc (Debian 4.7.2-5) 4.7.2 GNU Make 3.81 GNU Awk 4.0.1 ... Best regards: Alexis Fajardo Moya.

11 years, 1 month

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[ACTIVITY] 28 April - 2 May 2014

by Will Newton

== Progress == * Prototype scripting for macro-benchmarks for malloc (4/10, TCWG-441) * glibc single thread optimization work (3/10, TCWG-436) * Built releases of eglibc, gdb and binutils (2/10) * glibc patch review and followup (1/10) * Misc admin (expenses, LCU travel) == Issues == * None == Plan == * Various bits of patch followup * More malloc macro-benchmark work * See how single thread optimization discussion goes * glibc benchmark graphing? -- Will Newton Toolchain Working Group, Linaro

11 years, 1 month

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[ACTIVITY] Week 18

by Renato Golin

== Progress == * Named Register (CARD-1246 2/10) - Changing type of intrinsics, rebasing patch * Build & Benchmark (CARD-716 6/10) - Adding Clang+LLVM builds to CBuild2 - Re-setting APM's testing environment after replacement * Background (2/10) - Code review, etc. - EuroLLVM 2014 outcome analysis, plans for 2015 == Plan == * Get Clang+LLVM in CBuild2 * Get Named registers in, then try Clang's parser * Try SPEC on APM

11 years, 1 month

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failed on building arm64 kernel

by Zhi-zhou Zhang

hi, For building arm64 kernel, I tried all toolchain released from http://releases.linaro.org/latest/components/toolchain/binaries/ But it complained about some instructions bad: /home/work/linux/arch/arm64/include/asm/irqflags.h: Assembler messages: /home/work/linux/arch/arm64/include/asm/irqflags.h:49: Error: no such instruction: `msr daifset,' /home/work/linux/arch/arm64/include/asm/irqflags.h:68: Error: no such instruction: `mrs %rax,daif//arch_local_save_flags' /home/work/linux/arch/arm64/include/asm/irqflags.h:49: Error: no such instruction: `msr daifset,' /home/work/linux/arch/arm64/include/asm/irqflags.h:68: Error: no such instruction: `mrs %rax,daif//arch_local_save_flags' /home/work/linux/arch/arm64/include/asm/irqflags.h:40: Error: no such instruction: `msr daifclr,' /home/work/linux/arch/arm64/include/asm/irqflags.h:68: Error: no such instruction: `mrs %rax,daif//arch_local_save_flags' /home/work/linux/arch/arm64/include/asm/irqflags.h:40: Error: no such instruction: `msr daifclr,' Could anyone tell how to solve it? thanks!

11 years, 1 month

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[ACTIVITY] Week 17

by Bernie Ogden

== Progress== TCWG-435 needless busy-wait in lowlevellock.c (3/10) * Patches ready, testing a bit slow & fiddly TCWG-156 cortex-strings memset (3/10) * Worried about noisy benchmarks * Learned to use Lava * Found some helpful internal docs * Managed to tweak the code slightly == Misc == Meetings/mail/etc 2/10 (Public) holiday 2/10 == Plan == Stop worrying and follow the general curve of the noisy benchmarks (But also try to convince Maxim's spec scripts + lava to generate some less noisy results) Another public holiday next Monday

11 years, 1 month

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[ACTIVITY] 21 - 25 April 2014

by Omair Javaid

== Progress == * GDB reverse debugging on aarch64 -- Complete decoding of aarch64 data processing immediate instructions. [TCWG-399] [1/10] -- Complete decoding of aarch64 data processing register instructions. [TCWG-402] [1/10] -- Completed decoding of aarch64 exception and system instructions. [TCWG-400] [2/10] -- Further progress on decoding of aarch64 load store instructions. [TCWG-401] [2/10] -- Started implementation of aarch64 syscall record/replay. [TCWG-409] [2/10] * Sick Day Off on Monday [2/10] == Plan == * GDB reverse debugging on aarch64 -- Further progress on decoding of aarch64 load store instructions. [TCWG-401] -- Further progress on aarch64 syscall record/replay. [TCWG-409] * Public Holiday on 1st May.

11 years, 1 month

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[ACTIVITY] Week 17

by Yvan Roux

Short week, Easter Monday + child care (3/10) == Issues == * Toolchain64 disk still full every 2 days == Progress == * Linaro GCC 4.9 2014.04 release (3/10) - Branch merge with FSF 4.9.1 - Release tarball available on releases.linaro.org - Announcement will follow * Launchpad bugs: (2/10) o LP #1169164 : including signal.h exposes various PSR_MODE #defines - Discussed and implemented a fix - Validation on-going * Misc: o Cbuildv1 baby-sitting (1/10) o Various meetings (1/10). o Resolved cards : - TCWG-343. Make LRA the default for the ARM backend - TCWG-422. LP-bug 1296676 : ICE in assign_by_spills building linux btrfs module == Next == - One day off (Labor day) - Submit patch for LP #1169164 - TCWG-345. Analyse performance of LRA for ARM

11 years, 1 month

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[ACTIVITY] April 21-25 2014

by Venkataramanan Kumar

== Progress == PGO - AArch64 (TCWG-179) (4/10) * Completed SPEC2006 runs ( -O3 + PGO) in chroot + qemu-arm64-saucy with Linaro branch(4.9). * Perlbench train run failed, issue with qemu. * DealII train runs failed due to system libstdc++.so.6 not compatible with GCC 4.9. Changing the LD_LIBRARY_PATH to point to the libstdc++.so.6 that gets built along with GCC 4.9 solves the problem. * CPU2000 runs are completed my maxim so functional testing of PGO for spec benchmarks completed. * Wating on Arm64 hardware to benchmark SPEC2000 and SPEC2006 and compare against the PGO runs for x86. Misc (2/10) * Setup arm64-trusty chroot and built GCC 4.9 compiler * Maxim 1-1 discussions and set up opennx client * Checked libssp patch upstream status * Read about gcc debug counters. * Upgrade laptop to Ubuntu 14.04 LTS Short week (22nd and 23rd leave (4/10)) == Plan == * Bug fixing. == Issues== * Waiting on hardware to Benchmark SPEC2006 PGO runs in hardware.

11 years, 1 month

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[ACTIVITY] Week 17

by Zhenqiang Chen

== Issue == * None == Progress == * More tests on shrink-wrap changes (TCWG-133, 6/10). - Cortex-m3 tests exposes a data flow issue: New BB created after dfinit does not have correct df_lr info. - Collect Spec2k benchmarks on X86-64 and ARM. * Linaro 4.9 binaries release (2/10). - Update Linaro crosstool-ng config and samples to support 4.9. - Disable parallel build for gcc manual (pdf & html). - Prebuild binaries for aarch64: http://cbuild.validation.linaro.org/binaries/4.9-prerelease-2014.04 * Ping aarch64 fcel patch. But still no comments. * Fix a trunk build fail issue @r209556. * One day off (2/10). == Plans == * Send the shrink-wrap related patches for review. * PING the pending patches. * Investigate move-loop-invariants heuristics. == Planed leaves == * May 1-3: Labour day holiday.

11 years, 1 month

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[Activity] April 21-27

by Rob Savoye

== Progress == * Got Jenkins working with matrix builds so we can utilize all LAVA slaves. (TCWG 1387 - 3/10) * Write script to take a list of revisions and then build and test them all and diff the results. (TCWG 448 - 4/10) * More experimenting with Kugan's benchmarking branch. (1/10) * Meetings and Misc (2/10) == Plan == * More work on matrix builds. (TCWG 1387) * More work on regression test analysis and reporting. (TCWG 448)

11 years, 1 month

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[ACTIVITY] 21-25 April 2014

by Kugan

== Progress == * Short week (21st and 25th are public holidays) (4/10) * TCWG-447 (5/10) * Implemented and tested fenv target hooks, necessary built-ins and md patterns * Posted RFC patches for review for both arm and aarch64 * http://gcc.gnu.org/ml/gcc-patches/2014-04/msg01743.html * http://gcc.gnu.org/ml/gcc-patches/2014-04/msg01744.html * TCWG-413 Spec2006 (1/10) * Finished the set-up * On hold for now == Plan == * upstream zero/sign extension elimination activities * start with literal pool merging

11 years, 1 month

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[ACTIVITY] Week 17

by Renato Golin

== Progress == * Holidays (3 days) - Clearing emails/tasks backlog - Some post-trip illness * AArch64 vs. ARM64 - Comparing performance of both back-ends * Named Register - Re-implementing after code review - http://reviews.llvm.org/D3261 * Time - CARD-1246 4/10 - Others 6/10 == Plan == * Finish named register in LLVM, check Clang * Continue testing and benchmarking ARM64 back-end * Have a try at CBuildv2

11 years, 1 month

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[ACTIVITY] 21-25 April 2014

by Christophe Lyon

== Progress == * Back to work part-time (50%) for the next 3 weeks * Easter Monday (1/5) * (No Jira card - 2/5) Analyzed at GCC trunk validations and reported some regressions. The current commit rate is very high since stage1, and our compute farm isn't fast enough. Should be OK after the week-end. Modified my scripts so that I move these validations out of Jenkins. * (No Jira card - 2/5) Continued converting Neon intrinsics tests for inclusion in GCC testsuite. To make the review easier, I now believe that it would be better that I convert most of the testsuite first, and rework the patches order. * Meetings and conf calls(1/5) == Next == * Continue to closely monitor GCC trunk validations * Neon intrinsics tests * Off Thursday/Friday next week

11 years, 1 month

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[ACTIVITY] 21 - 25 April 2014

by Will Newton

== Progress == * Easter Monday (2/10) * Patch review, committing patches, bugs, support, etc. (1/10) * Convert cortex-strings to git, integrate new strcmp, submit patches for glibc (3/10, TCWG-153) * Upgrade laptop to Fedora 20, chromebook to Trusy (2/10) * Investigate methods of running macro-benchmarks for malloc (1/10, TCWG-441) * Investigate glibc single-thread optimization (1/10, TCWG-436) == Issues == * None == Plan == * Further work on glibc single-thread optimization * More malloc macro-benchmark stuff -- Will Newton Toolchain Working Group, Linaro

11 years, 1 month

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[ACTIVITY] 7-11 April & 14-18 April

by Charles Baylis

=== Previous === libvpx NEON intrinsics investigation [TCWG-429 14/10] . if interested, you can read the report in card 429: https://cards.linaro.org/browse/TCWG-429?focusedCommentId=22247 tested division optimisation patches against current trunk and pinged on list [2/10] good friday bank holiday [2/10] === Next === Resume looking at NEON scheduling TCWG-135, which ties into libvpx Upgrade laptop to Ubuntu 14.04 LTS

11 years, 1 month

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[ACTIVITY] 14 - 18 April 2014

by Omair Javaid

== Progress == * GDB reverse debugging on aarch64 -- Scored through a64 instruction set details. [1/10] -- Completed testing and implementation of all basic structures. [TCWG-398] [1/10] -- Started decoding aarch64 load store instructions for recording. [TCWG-401] [2/10] -- Completed decoding of aarch64 branch instructions. [TCWG-400] [2/10] -- Scored through a32 instruction set and researched on a32 recording. [2/10] * Miscellaneous [2/10] -- UK visa application process -- Tools cauldron and TCWG sprint bookings etc. -- Meetings == Plan == * GDB reverse debugging on aarch64 -- Complete decoding of aarch64 load store instructions. [TCWG-401] -- Completed decoding of aarch64 exception and system instructions. [TCWG-400]

11 years, 1 month

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[ACTIVITY] April 14-18 2014

by Venkataramanan Kumar

== Progress == PGO - AArch64 (TCWG-179) (4/10) * Completed SPEC runs -O3 -mcpu=cortex-a57 in chroot + qemu arm64-saucy with Linaro release source (4.8) march 2014. * Built Linaro 4.9 GCC branch based tool chain under chroot + qemu arm64-saucy * Created a PGO config file for aarch64 as a peak configure and use --tune=peak SPEC gave warning that FDO cannot be used as base flags and will ignore the flags. Also setting basepeak = yes gave issues and ran base runs and setting it to no does both base and peak runs * Started SPEC2006 runs for PGO under chroot + qemu arm64-saucy * Perlbench train run failed in qemu. * Other benchmarks are progressing. GLIBC Systemtap (2/10) * Ran glibc make check under qemu. Seen some illegal instructions and ntpl tests hung in qemu aarch64. Will has completed these tests in hardware. Misc (2/10) * Tested cbuildv2 to build gcc natively under qemu-arm64-chroot-ubuntu-saucy. git gave issues not able to clone and hangs when downloading binutils and gdb repos. * 17th was Public Holiday (2/10) == Plan == * Go through the results for SPEC2006 PGO runs. * Start functional PGO runs for SPEC2000 * Bug fixing.

11 years, 1 month

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[ACTIVITY] Week 16

by Yvan Roux

== Issues == * Toolchain64 disk full == Progress == * Linaro GCC 4.9 2014.04 (3/10) - Created FSF Linaro 4.9 branch - Testing FSF 4.9.0 RC * Launchpad bugs: (3/10) o LP #1169164 : including signal.h exposes various PSR_MODE #defines - Two possible ways to fix the issue (to be discussed with maintainers) * Misc: o Cbuildv1 baby-sitting (1/10) o Various meetings (1/10). == Next == - Easter Monday off - Continue on LP #1169164 - Linaro GCC 4.9 release (when FSF release will be made)

11 years, 1 month

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[ACTIVITY] April 14-20

by Maxim Kuvyrkov

== Week of April 14th == - Benchmarked autoprefetcher patches. (TCWG-388, 2/10) - Continued working on spec2xxx-utils scripts. These are now gaining support for AArch64 and SPEC2006. (TCWG-238, 4/10) - Various discussions. (2/10) - Short week due to Good Friday / Easter. (2/10) == Week of April 21st == - Take Tyler B.'s LAVA test definition for SPEC benchmarking and adjust spec2xxx-utils scripts to match LAVA environment. - Investigate regressions on gap, eon and wupwise from autoprefetcher patches. -- SPEC2000's gap in particular is sensitive to 1st scheduling pass with register pressure, and, apparently has a 5% performance improvement potential (at -O2 Cortex-A15). - Various discussions. - Even shorter week due to Easter Monday and ANZAC Day on Friday. (4/10) -- Maxim Kuvyrkov www.linaro.org

11 years, 1 month

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[ACTIVITY] 14 - 18 April 2014

by Kugan

== Progress == * TCWG-238 (4/10) - Created scripts and spectools for spec2006 to work with cbuild2 * TCWG-413 Spec2006 (4/10) - Worked out Spec2006 config and src.alt for v1.1 src we have to work correctly - Got it to work natively with Maxim's scripts - Did a trail run in apm openembedded; Needs ccrypt, tar with xz compression support and system binutils with -mabi=ilp64 support * 18th is Public Holiday (2/10) == Plan == Benchmarking and FENV support

11 years, 1 month

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[Activity] April 14-20

by Rob Savoye

== Progress == * Attempted to get qemu-aarch64 working, fails on saucy, works on precise. Did native build, hung during 'make check'. Setup qemu-aarch64 chroot on all TCWG x86_64 build farm machines. (4/10) * Tracked down problem that's kept TCWG Jenkins from working. (1/10) * Tried Kugan's benchmarking branch of cbuildv2. (1/10) * More work on Neon intrinsics tests. (TCWG-322 - 1/10) * Meetings and Misc (3/10) - Worked on benchmarking doc with Ryan. == Plan == * Get Jenkins working with matrix builds so we can utilize all LAVA slaves. * More experimenting with Kugan's benchmarking branch.

11 years, 1 month

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[ACTIVITY] Week 16

by Zhenqiang Chen

== Issue == * None. == Progress == * multilib can not work with multiarch anymore, so change Linaro crosstool-ng to make 2014.04 release (2/10). - For 4.8 release, we will revert the change and keep it align with previous releases. * Linaro 4.9 toolchain binaries pre-releases (Cross & native) for aarch64 (2/10): http://cbuild.validation.linaro.org/binaries/4.9-prerelease-2014.04. * Try to set up native spec2006 tests on Chromebook. But got "out of memory" when building the tools (1/10). * Clean up and test for shrink-wrap enhancement (TCWG-133: 2/10) * Rebase the aarch64 fcsel patch and testing. (1/10) * ARM internal work (2/10) == Plans == * Send the shrink-wrap related patches for review. * PING the pending patches. == Planed leaves == * April 21: Team event. * May 1-3: Labour day holiday.

11 years, 1 month

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[Weekly] 14 - 18 APR 2014

by Michael Collison

== This week == - Resolved Launchpad bug 1305042 as user error and provided proper asm coding [TCWG-290] [2/10] - Investigated infinite loop bug [TCWG-290][6/10] - Determined the infinite loop is occurring in function vt_find_locations in the variable tracking pass - Still debugging to determine cause of infinite loop - Absent due to illness on April 14th == Next week == Vacation == Future ==

11 years, 1 month

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arm-linux-gnueabihf-gcc: out of dynamic memory in yy_create_buffer()

by Jeremy Hahn

Getting the following cross compiling for RPi on Debian Wheezy x64 using the gcc-linaro-arm-linux-gnueabihf-raspbian toolchain within Eclipse Kepler. Compilation works fine using native Debian x64 GCC and native GCC compiler on the RPi. out of dynamic memory in yy_create_buffer() collect2: error: ld returned 2 exit status make: * [cwebsocket] Error 1 I'm stumped. Can't find much info on the issue. Any ideas?

11 years, 1 month

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[ACTIVITY] 14 - 18 April 2014

by Will Newton

== Progress == * One bank holiday, half day childcare (3/10) * Submit two iterations of malloc microbenchmark for glibc (4/10, TCWG-160) * Submitted a patch for aarch64 ld bug with SystemTap notes (1/10) * Investigated strcmp implementations for ARM (1/10, TCWG-153) * Patch review, bugs, support, etc. (1/10) == Issues == * None == Plan == * malloc benchmarking/implementation work -- Will Newton Toolchain Working Group, Linaro

11 years, 1 month

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[ACTIVITY] Week 16

by Bernie Ogden

== Progress == TCWG-156 cortex-strings memset (3/10) * Got a full set of benchmarks (for my 2 targets) * Cleaned up code * Sped up small memsets (for A9, A15 results pending) glibc performance bug in lowlevellock.c (1/10 - I'll make a card next week) * Learned to build and test glibc * Understood the bug and worked out how to fix Misc * Meetings/mail (1/10) * Infrastructure/workflow fiddling (1/10) * 2 days holiday == Plan == More TCWG-156 Finish off glibc performance bug Public holidays Friday & Monday

11 years, 1 month

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[ACTIVITY] April 7-13

by Maxim Kuvyrkov

== Week of April 7th == - Made a how-to wiki page/script on how to use QEMU and schroot for system emulation (TCWG-179, 2/10). -- This allows you to get armhf or armel or aarch64 Ubuntu or Debian system within minutes, e.g., for PGO or LTO bootstraps of GCC. -- https://collaborate.linaro.org/display/TCWG/ARM+ubuntu+chroot+with+QEMU+use… -- I can move this page into public wiki if get enough interest from non-Linaro people. - Fixed various bugs in instruction scheduling patch set (TCWG-388, 5/10). - Scripted running SPEC2000 for reproducible benchmarking (TCWG-238, 3/10). -- The scripts are now at http://git.linaro.org/toolchain/spec2xxx-utils.git -- Scripts support both local (native) and remote (cross) benchmarking. == Week of April 14th == - Document spec2xxx-utils scripts and see how they fare in LAVA environment. Add support for SPEC2006. (TCWG-238) - Post autoprefetcher patch set upstream (TCWG-388) -- Maxim Kuvyrkov www.linaro.org

11 years, 1 month

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[ACTIVITY] March 31-6

by Maxim Kuvyrkov

== Week of March 31st == - Investigated and scripted how to reproducibly run benchmarks (TCWG-238, 7/10) -- Stop all services on target board -- Use local disk -- Stop networking -- Bind benchmark to a specific CPU. Bind all other processes to a different CPU. -- Disable frequency scaling. - Various discussions (3/10) -- Maxim Kuvyrkov www.linaro.org

11 years, 1 month

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[Activity] 7 - 11 Apr 2014

by Venkataramanan Kumar

PGO - AArch64 (TCWG-179) (4/10) * Installed QEMU user static for aarch64 and use them from chroot environment in ubuntiu 13.10 * Tried installing chroot + qemu arm64-saucy in another ubuntu 12.04 machine. Issue with binfmts. looks to be corrupted. * Bootstrap GCC with PGO with --enable-languages=c,c++,fortran completed under arm64-chroot. * Built GCC and binutils in native mode under chroot + qemu arm64-saucy . * SPEC runs -O3 -mcpu=cortex-a57 in chroot + qemu arm64-saucy with linaro release source (4.8). Calculix did not finish under chroot + qemu arm64-saucy GLIBC Systemtap (4/10) * Built systemtap under chroot + qemu arm64-saucy. Built glibc with the patch and used --enable-systemtap. * Able to see setjmp probe in gdb, but longjmp probes not loading. Tried debugging in gdb. gdb debugging support not available yet under qemu. * Discussed with Will newton on my observation. Bug fix (1/10) * Not much progress continued looking at reload dumps. Misc (1/10) * Tested cbuildv2 to build gcc natively under qemu-arm64-chroot-ubuntu-saucy. cbuildv2 reports configure error for gcc and g++multilibs. But they are not needed for native builds. Sent note to Rob for fixing it. * Attend 1-1 with Ryan * Attend 1-1 with Maxim discuss PGO work. == Plan == PGO runs for SPEC2006 on chroot + qemu arm64-saucy Upstream /testing for systemtap probes in glibc Reload bug fix. Leave: 17-Apr local state election.

11 years, 1 month

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[ACTIVITY] 7 - 11 April 2014

by Omair Javaid

== Progress == * GDB reverse debugging on aarch64 [6/10] [TCWG-398] -- Setup development tree and debug environment. -- Verified generic reverse debugging implementation aarch64. -- Implemented main function stubs to catch instruction for decoding and recording. * Work on gdb testing utility [TCWG-96] [1/10] -- Some tweaks to scripts and wiki updates. * Experimented gdb testing/debugging with Aarch64 QEMU + Chroot [3/10] == Plan == * GDB reverse debugging on aarch64 [TCWG-398] -- Implement main instruction decoding handler and write function stubs for different types of instructions. -- Dig deeper into aarch32 for handling it through armv7 implementation if possible.

11 years, 1 month

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[ACTIVITY] Week 15

by Bernie Ogden

== Progress == TCWG-156 cortex-strings memset (5/10) * Fixed a couple of bugs in the no-VFP case * Ran benchmarks, discarded broken benchmarks, ran more benchmarks * Explored benchmarking scripts * Took a hard look at the memset tests * Experimented with ARM-internal cortex-strings benchmark (not useful right now) Misc * Meetings (1/10) * Kicked an A15 target until it worked (1/10) * 1/2 day holiday == Plan == More TCWG-156 Maxim's glibc starter issue Holiday Tuesday Public Holidays Friday & next Monday

11 years, 1 month

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[ACTIVITY] Week 15

by Yvan Roux

1 day off (Child care) == Issues == * Toolchain64 disk full == Progress == * Released Linaro GCC 4.7 and 4.8 2014.04 (5/10) * Launchpad bugs: (1/10) o LP #1169164 : including signal.h exposes various PSR_MODE #defines - rebased and rework patch * Misc: o Cbuildv1 baby-sitting (1/10) o Various meetings (1/10). == Next == - Continue on LP #1169164 - Linaro GCC 4.9 release

11 years, 1 month

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[ACTIVITY] Week 15

by Zhenqiang Chen

== Issue == * None == Progress == * 2 day off. * Investigate lp:1304267 and close it as invalid. * Investigate shrink-wrap bootstrap issues [4/10, TCWG-133] - Re-implement the copy propagate part by referring cprop_hardreg pass. - Other tests are ongoing. * Document cross-native build on wiki: https://wiki.linaro.org/WorkingGroups/ToolChain/cross-native == Plans == * Send the shrink-wrap related patches for review. * PING the pending patches. == Planed leaves == * April 21: Team event. * May 1-3: Labour day holiday.

11 years, 1 month

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[ACTIVITY] 7 - 11 April 2014

by Kugan

== Progress == * TCWG-413 Spec2006 (6/10) - Setup chroot for aarch64 - Created rootfs with 4.8/trunk and spec2006 - booted created rootfs on foundation model with ubuntu kernel * TCWG-291 CRC (3/10) - posted vrp patch upstream - with that seeing expected performance improvement - analysing crc complete and up-streaming activities pending * LP1301335 and PR59695 back-porting (1/10) == Plan == Benchmarking and FENV support

11 years, 1 month

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[ACTIVITY] 7 - 11 April 2014

by Will Newton

== Progress == * glibc patch review (2/10) * Helping out with aarch64 glibc setjmp/longjmp Systemtap probes testing (1/10) * More work on malloc microbenchmark and glibc infrastructure (5/10, TCWG-160) * Investigating glibc dynamic loader code (1/10) * Updating Chromebook Ubuntu install (1/10) == Issues == * None == Plan == * More glibc and malloc microbenchmark work * malloc macro benchmark planning -- Will Newton Toolchain Working Group, Linaro

11 years, 1 month

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issue in Compiling GCC for ARMv7-a | Cortex-A9 | Hard Float | vpfv3-d16

by Anwej Alam

Dear Sir, Thanks for you page. it is really very helpful to us. We are facing a problem during compiling GCC for our ARMv7-a Cortex-a9. We are using following option: 1. ../gcc-linaro*/configure --disable-bootstrap --enable-languages=c,c++ --with-mode=thumb --with-arch=armv7-a --with-tune=cortex-a9 --with-float=hard --with-fpu=vpfv3-d16 --prefix=$home/gcc/gcc-linaro 2. make -j`getconf _NPROCESSORS_ONLN` after 2 step we are getting following error: checking whether putc_unlocked is declared... yes checking whether getrlimit is declared... yes checking whether setrlimit is declared... yes checking whether getrusage is declared... yes checking whether ldgetname is declared... no checking whether times is declared... yes checking whether sigaltstack is declared... yes checking whether madvise is declared... yes checking for struct tms... yes checking for clock_t... yes checking for F_SETLKW... yes checking if mkdir takes one argument... no Unknown CPU given in --with-arch=armv7-a. make[1]: *** [configure-gcc] Error 1 make[1]: Leaving directory `/home/anwej/src/build' make: *** [all] Error 2 Please suggest the solution. where is the problem and what will be our next steps. Thanks in advance. -best regards Anwej Alam Ph: +91.995.833.3456

11 years, 1 month

4
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infinite loop with native arm gcc

by Riku Voipio

Hi, The preprocessed file: http://people.linaro.org/~rikuvoipio/qmltextgenerator.ii.gz With compile command line: g++ -save-temps -c -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC -o x.o qmltextgenerator.ii Will take apparently forever (north of 1600min) on a debian native gcc. -O compiles instantly. Some bisecting for gcc optimization flags later, disabling strict aliasing allows instant build as well: g++ -save-temps -c -g -O2 -fno-strict-aliasing -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC -o x.o qmltextgenerator.ii Happens with: gcc version 4.8.2 (Debian 4.8.2-19) and gcc version 4.9.0 20140405 (experimental) [trunk revision 209146] (Debian 20140405-1) Linaro binary cross-compilers are compile the file fine with -O2. do we do native gcc testing, or should it be just submitted upstream bugzilla? Riku

11 years, 1 month

2
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[ANNOUNCE] Linaro GCC 4.8 and 4.7 2014.04 released

by Yvan Roux

The Linaro Toolchain Working Group is pleased to announce the 2014.04 release of both Linaro GCC 4.8 and Linaro GCC 4.7. As announced at Linaro Connect USA 2013 Linaro GCC moved to a pattern of quarterly stable releases, with engineering releases in the intervening months. This is the second stable release, and contains no known regressions compared to the 2014.01 release. The next stable release of GCC 4.8 will be the 2014.08 release. There will be no engineering releases of GCC 4.8 until this release, as it enters in maintenance. No more releases of GCC 4.7 are planned. Next month's release - 2014.05 - will be based off GCC 4.9 and be an engineering build. Linaro GCC 4.8 2014.04 is the thirteenth and last development release in the 4.8 series before entering maintenance. Based off the latest GCC 4.8.3+svn208968 release, it includes performance improvements and bug fixes. Interesting changes include: * Updates to GCC 4.8.3+svn208968 * Cortex-a53 support * A fix for LP #1292489: Buggy vectorization of dot products * A fix for LP #1268893: ICE when building kernel raid6 neon code * A fix for LP #1273511: ICE APCS Frame & optimize-sibling-calls Linaro GCC 4.7 2014.04 is the twenty third release in the 4.7 series. Based off the latest GCC 4.7.4+svn209005 release, this is the tenth release after entering maintenance and the final one. Interesting changes include: * Updates to GCC 4.7.4+svn209005 * A fix for LP #1129013: Internal compiler error in push_reload during bootstrap stage 2 * A fix for LP #1292489: Buggy vectorization of dot products * A fix for LP #1301335: Compiler segmentation fault while cross-compiling QT5 Webkit The source tarball is available from: http://releases.linaro.org/14.04/components/toolchain/gcc-linaro/4.8 http://releases.linaro.org/14.04/components/toolchain/gcc-linaro/4.7 Downloads are available from the Linaro Releases website: http://www.linaro.org/downloads/ More information on the features and issues are available from the release page: https://launchpad.net/gcc-linaro/4.8/4.8-2014.04 https://launchpad.net/gcc-linaro/4.7/4.7-2014.04 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, 1 month

1
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objdump missing source lines

by John Syne

I compiled my code with debug symbols on an BeagleBoneBlack using Debian gcc-4.7. If I use objdump -S on my object file, I see both source lines and disassembly. On my Ubuntu 13.10 host, using gcc-linaro-arm-linux-gnueabihf-4.7-2013.04-20130415_linux, I do arm-linux-gnueabihf-objdump -S on the same object file, I see disassembly lines, but the source lines are not displayed. I¹m attempting to debug my code with a Lauterbach JTAG debugger, but no source code is available which makes debugging very difficult. Is there some compatibility issue here or am I doing something wrong? Regards, John

11 years, 1 month

2
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[ACTIVITY] 31 March - 4 April 2014

by Omair Javaid

== Progress == * Work on gdb testing utility [TCWG-96] [8/10] -- Support to run native and native-gdbserver test via ssh on remote machines like arm-linux. -- Bug fix and test gdb testing utility by running it various configurations. -- Update wiki page with testing utility and how to use it. * Chromebook ubuntu re-install and fix network lag issue [2/10] == Plan == * GDB reverse debugging on aarch64 -- Start implementation of reverse debugging infrastructure [TCWG-398] -- Add support for running aarch64 gdb test suite in gdb testing utility.

11 years, 1 month

1
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[Weekly] 31 MAR - 04 APR 2014

by Michael Collison

== This week == a53 support [CARD-300][3/10] - aarch64-none-elf target using cpu=cortex-a53 passed validation on foundation model - Resolved code review issues (formatting and unnecessary patches) Backport 202663 - vectorizer bug passed validation and merge review for 4.7 and 4.8 [CARD-300][3/10] GCC Bugzilla bug 60657 [TCWG-290][2/10] - began fix by adding new conditions to pattern causing crash - bug was fixed upstream by Jeffrey Law on April 4th == Next week == - Transition from backports to bug fixing - Create Wiki page for Aarch64 bug contingency bug fixes, feature and performance improvements for partners == Future == One week of vacation either the third or fourth week of April.

11 years, 1 month

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