- linaro-toolchain - lists.linaro.org

by Renato Golin

== Progress == * Kernel (CARD-1246 2/8) - Fixed edge cases for named registers - http://llvm.org/PR19841 - http://llvm.org/PR19837 * Background (6/8) - Code review, meetings, discussions, etc. - TCWG Rack re-org - Trying to set up native Chromebooks - Trying to set up APM - Trying to add Compiler-RT to our buildbots == Plan == * Continue rack re-org * Continue RT support on current bots * Try libc++ bot * Have a look at sanitizer bot

11 years, 3 months

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[ACTIVITY] 26 - 30 May 2014

by Will Newton

== Progress == * Bank Holiday Monday (2/10) * Got a postgresql malloc benchmark running (4/10, TCWG-441) * Started refactoring malloc microbenchmark based on review (2/10, TCWG-160) * Patch review and testing (2/10) == Issues == * None == Plan == * Holiday Tuesday and Wednesday * Finish refactoring malloc microbenchmark * Work on results plotting code for benchmarks -- Will Newton Toolchain Working Group, Linaro

11 years, 3 months

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Prebuilt Linaro 2014.04 arm-linux-gnueabihf: cannot find /lib/ld-linux-armhf.so.3

by Denys Dmytriyenko

Hi, I've been having this issue with latest binary Linaro 2014.04 toolchain from http://releases.linaro.org/14.04/components/toolchain/binaries/gcc-linaro-a… It comes with own sysroot, but linker fails to locate /lib/ld-linux-armhf.so.3 $ make arm-linux-gnueabihf-gcc -I/tmp/include/libnl3/ -DCONFIG_LIBNL32 -c -o nvs.o nvs.c arm-linux-gnueabihf-gcc -I/tmp/include/libnl3/ -DCONFIG_LIBNL32 -c -o misc_cmds.o misc_cmds.c arm-linux-gnueabihf-gcc -I/tmp/include/libnl3/ -DCONFIG_LIBNL32 -c -o calibrator.o calibrator.c arm-linux-gnueabihf-gcc -I/tmp/include/libnl3/ -DCONFIG_LIBNL32 -c -o plt.o plt.c arm-linux-gnueabihf-gcc -I/tmp/include/libnl3/ -DCONFIG_LIBNL32 -c -o wl18xx_plt.o wl18xx_plt.c arm-linux-gnueabihf-gcc -I/tmp/include/libnl3/ -DCONFIG_LIBNL32 -c -o ini.o ini.c arm-linux-gnueabihf-gcc -L/tmp/lib/ nvs.o misc_cmds.o calibrator.o plt.o wl18xx_plt.o ini.o -lm -lnl-3 -lnl-genl-3 -o calibrator /opt/linaro-2014.04/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find /lib/ld-linux-armhf.so.3 collect2: error: ld returned 1 exit status Makefile:26: recipe for target 'all' failed make: *** [all] Error 1 And when I pass my own sysroot, it works fine. Is it supposed to work as a standalone toolchain with its own bundled sysroot? Thanks. -- Denys

11 years, 3 months

2
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x86_64 libsanitizer test case bug

by Rob Savoye

I've been digging through test logs, and for gcc 4.9.1 native x86_64 tests, all the libsanitizer test cases fail to link due to unresolved symbols from libpthread and libdl. Does anybody know more about this bug, or care to fix it ? :-) It still exists in gcc trunk. - rob -

11 years, 3 months

2
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[Weekly] 19-23 May 2014

by Michael Collison

== This week == - Completed GCC Launchpad bug dispositions [CARD-300][2/10] - Backported PR61202 - gcc generated invalid sqdmulh instruction [TCWG-485](2/10) - Triaged and investigated Launchpad bug 1295738- Unable to find a register to spill in class 'LO_REGS' [Card 300](3/10) - Triaged and investigated Launchpad bug 1248752 - ARM assembly instruction compile error [Card-300](3/10) == Next week == - Resolve Launhpad bugs 1295738 and 1248752 - Triage and investigate other bugs as time warrants == Future == No Plans. == Planned holidays == No Plan

11 years, 3 months

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[Activity] May 19-25

by Rob Savoye

== Progress == * Worked on building binary tarballs from Jenkins. (TCWG 383 - 4/10) * Continuing work on regression test analysis and reporting. (TCWG 448 - 3/10) - now copying the check.log from make check to toolchain so tcwgweb.sh can scan it for build errors in the test cases. - Got the delimiter for concurrent Jenkins builds changed, now glibc build problems are gone. - Track down and try to fix testsuite build issues. * Meetings and Misc. (3/10) - Worked on making remote testing go faster. Setting ControlPersist seems to help. - Much debugging of Jenkins related issues. == Plan == * Continuing work on validating test results and fixing testsuite build issues. (TCWG 448) * Probably more work on binary tarballs. (TCWG 383) * More tracking down and fixing Jenkins related issues. == Issues == * For some reason libgloss isn't getting built for *-elf via Jenkins/Cbuildv2.

11 years, 3 months

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Parallel cross-testing of GCC

by Maxim Kuvyrkov

Hi, I have tried out a prototype of using binfmt_misc, and it does not appear to be a worthwhile solution at this point. Bottom line: with a nice fast multi-core x86 server and a pool of ARM boards we can test GCC in ~20min. Testing setup: - Core i3 2-core host - Chromebook 2-core target, SSD disk - WiFi network - GCC mainline built from sources with same flags both natively and cross: C, C++, Fortran. General observations about testing ARM toolchains: - When testing natively target is busy 100%: around 50% of time is spent compiling testcases, 40-45% in dejagnu/expect, 5-10% on actual test execution. Target is the bottleneck. -- 21633.22user 4400.13system 4:13:11elapsed - With testing cross using standard rsh_prog=ssh, rcp_prog=scp, target is busy 40% of the time: 30% on ssh, 10% on actual test execution. Host is the bottleneck. -- - When testing cross (using method below) target is busy only 15-20% of the time: 10% on ssh and 10% on actual test execution. Host is the bottleneck. -- 9490.16user 2882.54system 1:10:57elapsed I've got a prototype implementation of parallelized cross-testing of GCC that I'm happy with using rsh_prog and rcp_prog dejagnu wrappers: General observations on dejagnu cross-testing process: - All communication with the target is done by Dejagnu via rsh_prog and rcp_prog hooks. These are normally defined to ssh and scp respectively. - Dejagnu copies every testcase to /tmp/ on the target with scp. - Dejagnu executes every testcase via ssh off target's /tmp/. In total there is 1 scp and 3 ssh invocations per testcase. The idea of below scripts is to assume shared filesystem between host and a pool of target boards, and skip copying executables to target's local filesystem. Since there is no longer local state (local state == contents of /tmp) on the target boards, testcases can be executed on any of the boards in the pool. This happens transparently to dejagnu: dejagnu issues "rsh_prog chromebook-pool ./test" and then rsh_prog converts this to "ssh chromebook-XX ./test", where XX chosen at random. Script implementation notes: - For some unholy reason there is no way of correctly parse command line from dejagnu and give it to bash. The reason why myssh script ssh'es onto host itself is because that's the only way I've found to reliably execute the command. Hey! The command line was intended for ssh anyway! - Myssh script translates hostname of foobar-pool-01-03-08 into foobar01, foobar03 or foobar08 chosen at random. If there is no "-pool-" mentioned in hostname, then it is used verbatim. -- Maxim Kuvyrkov www.linaro.org

11 years, 3 months

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[ACTIVITY] 19 - 23 May 2014

by Omair Javaid

== Progress == * GDB arm v8 record/replay -- Completed implementation of system call recording [TCWG-409] [4/10] -- Support for recording A64 Loads and stores [TCWG-409] [2/10] -- Bug Fixing to reduce failures in gdb.reverse testsuite [TCWG-484] [2/10] * Miscellaneous -- Day off on Friday [2/10] == Plan == * GDB arm v8 record/replay -- Submission of patches upstream. -- Bug fixing to reduce failures. -- Advance SIMD load/store instruction recording support.

11 years, 3 months

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[ACTIVITY] Week 21

by Zhenqiang Chen

== Issue == * None. == Progress == * Investigate PR61220, 61225 and 61278, which are triggered by my previous commits. Patches are in review. (9/10) * Investigate codes generated by shrink-wrapping interrupt routes. It seams no dwarf info issue. * Misc update for Linaro crosstool-ng to make the build work in case someone wants to use it. - Down grade gdb to 7.6. - Disable multilib for 4.9. - Move local patches at binutils/linaro-2.24.0-2014.03 to binutils/linaro-2.24.0-2014.05. == Plans == * Push pending patches. == Planed leaves == * June. 2.

11 years, 3 months

2
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ld can't deal with LTO bytecode in static libraries

by Bernhard Rosenkränzer

Hi, I've run into some compile errors after updating to 4.9 -- usually getting undefined references to symbols defined in helper static libraries. It turns out this is triggered by gcc -flto now creating slim object files by default (-ffat-lto-objects "fixes" it) - but I think it is actually an ld bug that should be fixed at some point. ld (regardless of whether I use -fuse-linker-plugin, -fuse-ld=gold or -fuse-ld=bfd) doesn't seem to see LTO bytecode in object files that are inside an ar wrapper. It deals with the library just fine if I use "ar x" to extract its object files and link to them individually as opposed to the .a file. I've attached a small test case to demonstrate ("make broken" shows the error, "make works" shows the workaround). Is there any reason why ld should behave the way it does, or is this a bug that needs fixing? ttyl bero

11 years, 3 months

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[ACTIVITY] 19- 23 May 2014

by Venkataramanan Kumar

== Progress == * Reload - IRA bug fix (3/10) Not able to reproduce in trunk, r210538 masks the bug again :( Discussed with maxim on extending the macro ,Likely spilled class for thumb2. Decided that it will lead to performance regressions. Conservative fix is to allow the pattern for ARM target alone. Verfying the fix by on armhf schroot * Testing GCC Linaro compiler on Hardware (4/10) Completed GCC Linaro compiler 4.8 and 4.9 correctness tests on hardware. Completed running SPEC 2006 for -O3. Completed running SPEC2006 for -O3 -ftlo and -mcpu=cortex-a57. Triggered PGO runs on hardware. Looked at bootstrap failure with BOOT_CFLAGS="-mcpu=cortex-a57". Changed from system assembler to Linaro assembler solved it as system assembler is old. * Misc (3/10) - Completed installing ubuntu, set up chroot and migrate to toolchain 64 environment. (2/10) - 1-1 meetings (Ryan, Christophe and Maxim) (1/10) - AMD internal support work and meetings == Plan == * Continue bug fixing. * LTO bootstrap failure * Testing GCC Linaro compiler on hardware. * UK VISA processing.

11 years, 3 months

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[ACTIVITY] 19 - 23 May 2014

by Kugan

== Progress == * Zero/sign extension elimination (TCWG-15) (9/10) - Initiated discussion and started working on alternate approach to handle this. - Gone through couple of prototype to understand approach. - Finshed first implrmentation; Needs cleanup and some failiures in regression needs fixing. * benchmarking (TCWG-468) (1/10) - Changes to Maxim's script is complete; Doing final testing before committing. * SAH1 performance (TCWG-413) - Committed a clean-up patch upstream. - Posted spill_class patch. * FENV for C11 TCWG-447 - Committed AArch64 part. == Plan == * Benchmarking. * Upstream zero/sign extension elimination activities. * sha1 performance.

11 years, 3 months

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[ACTIVITY] Week 21

by Yvan Roux

== Issues == * None == Progress == * CARD-1162 : Linaro GCC 4.9 and CARD-1355 : stabilization and optimization effort for ARMv8-a (8/10) - Looked at Jenkins build/failures/reportin - Review the backporting process and scripted it - 40 backports are in review and need validation * LP #1169164 : including signal.h exposes various PSR_MODE #defines - Committed upstream. * Misc: o Various meetings (2/10) o LCU'14: Register and booked flights == Next == * Child care today * Improve the backport script and document it's usage * Continue backports * Continue feedback and help with the validation

11 years, 3 months

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[ACTIVITY] 19-23 May 2014

by Christophe Lyon

== Progress == * GCC trunk cross-validation (4/10) - build broken last week-end, because of a new optimization that broke glibc build. - glibc fixed by Joseph mid-week, updated - to help diagnose build failures earlier, I have setup a reduced version of the validation framework, which only performs a build of binutils+glibc+gcc, at every commit on gcc trunk for 16 arm+aarch64 configurations. [ yes, another buildbot of sorts ] - restarted builds+validations to last known successful status (i.e. before last week-end) - builds are catching up * Neon intrinsics tests (3/10) - continuing conversion (about 40 files done, out of ~140) * Misc (meetings, conf-calls, ...) (3/10) * Backports for 4.9: - started reviewing candidate backports == Next == * GCC trunk cross-build/cross-validation: - monitor and report regressions * Neon intrinsics tests: - continue conversion - prepare a cleaner branch for upstream submission * Backports: - more reviews - process improvements

11 years, 3 months

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[ACTIVITY] Week 21

by Renato Golin

== Progress == * Kernel (CARD-1246 4/10) - Named registers committed in Clang - GCC seems to break on local named regs, too. - Trying to change the kernel code to use only globals for non-GPRs - Adding support for pointer types, and structure fields in GNRVs * Benchmarks (CARD-716 0/10) - Re-enabling perf reports for LNT bot (ARM fixed reporting) * Background (6/10) - Code review, meetings, discussions, etc. - Removing *all* buildbots' batteries after failure - Testing D01 box, not stable yet for toolchain testing - Moving development to git.linaro.org (for backup) - Planning TCWG rack migration - Drafting an LLVM white paper == Plan == * Continue with named register extra work (http://llvm.org/PR19837) * Start TCWG rack migration * Discussions about LLVM white paper

11 years, 3 months

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[ACTIVITY] 19 - 23 May 2014

by Will Newton

== Progress == * Investigate and fix building glibc for ARM with -mtls-dialect=gnu2 (3/10) * Investigate ld TLS behaviour for Huawei (1/10) * Refactor scripts to enable benchmarking postgresql malloc performance (2/10, TCWG-441) * Patch review and testing (1/10) * Diagnose and fix glibc testsuite failures on aarch64 (2/10) * Meetings, admin (1/10) == Issues == * None == Plan == * More malloc application benchmarking -- Will Newton Toolchain Working Group, Linaro

11 years, 3 months

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[ACTIVITY] Week 21

by Bernie Ogden

== Progress== lowlevellock performance bugs - TCWG-435 [5/10] * Tried various methods to build/test glibc for aarch64 * Eventually succeeded (tests passed) cbuild benchmarking - TCWG-360 [3/10] * cbuildized spec2xxx scripts working as far as 'run' Meetings/mail/etc [2/10] == Plan == Holiday for one week After that: * Clean up cbuildized spec2xxx scripts, cbuildize them some more & discuss with Rob * Send lowlevellock patch upstream * If time, put together some more experimental memset implementations

11 years, 3 months

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Using binfmt_misc for cross testing

by Maxim Kuvyrkov

I have been thinking how to simplify cross-testing our toolchain for both automated and development/debugging builds, and among various options the most universal I came up with is ARM hardware + ssh + binfmt_misc + sshfs. I wonder if anyone has already tried this or can suggest alternatives which are as universal. Given: - host x86_64 development machine - cross-compiler - target hardware with fast network to the host - host and target have ssh - testsuite (gcc/glibc/gdb/etc) Here is how it is going to work 1. On host we create a simple wrapper script that will pass through its arguments as command to execute on target via ssh: === #!/bin/sh ssh -p 22NN $TARGET_BOARD "$@" === 2. We register this script in binfmt_misc to be used as interpreter for target binaries. Value of $TARGET_BOARD will be picked up from the environment and can be set to different boards for different testsuite runs. 3. The target board needs to be prepared for a particular testsuite run: -- Runtime libraries need to be either copied or mounted via sshfs from the host. It is an open question how best to install several sets of libraries (for parallel runs) so that each set appears to be main system libraries. My current thinking is a separate ssh server inside chroot per each test run. -- Test directory needs to be sshfs mounted on target from host so that the target could see test executables. -- Preparation/finalization of the board can either be done explicitly before/after testing. Or it can be done on demand by the aforementioned script: the script checks whether a multiplexed ssh socket exists, and, if not, it prepares the board and starts a multiplexed ssh connection. 4. Testing is fired up as if it is normal "native" testing. Whenever kernel is given an ARM binary to execute -- it passes it off to wrapper, which passes it off to the target board via ssh. The board sees same filesystem as host and happily executes binaries against toolchain runtime libraries. Comments or rotten tomatoes? Thank you, -- Maxim Kuvyrkov www.linaro.org

11 years, 3 months

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[Activity] May 12-18

by Rob Savoye

= Progress == * Worked on the LLVM branch of Cbuildv2 (TCWG - 1/10). * More work on regression test analysis and reporting. (TCWG 448 - 5/10) * Meetings and Misc (4/10) - Produced lots of test results via Jenkins, need to verify they're not having remote target problems. == Plan == * Verify test runs aren't having problems with remote targets. * Start training the Jenkins Failure Analysis plugin. * Install lava-tool and get it working on all the tcwgbuild* machines. * Continuing work on regression test analysis and reporting. (TCWG 448 - 5/10)

11 years, 4 months

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[Weekly] 12-16 MAY 2014

by Michael Collison

== This week == - Investigated infinite loop bug [TCWG-290][3/10] - Worked on GCC Launchpad bug dispositions (75% complete) [CARD-300][7/10] == Next week == - Complete spreadsheet for GCC Launchpad bug dispositions - Work on unresolved bugs == Future == No Plans. == Planned holidays == No Plans

11 years, 4 months

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[ACTIVITY] May 12-16

by Charles Baylis

== Progress: == Holiday [2/10] Rewrite of division optimisation changes following review - TCWG293 [8/10] == Plan == Mostly on holiday this week. I may be working sporadically

11 years, 4 months

1
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[ACTIVITY] Week 20

by Yvan Roux

== Issues == * None == Progress == * CARD-1162 : Linaro GCC 4.9 (7/10) - Released GCC 4.9 2014.05 - Iterate with rob on jenkins issues, regression reporting, etc... * LP #1169164 : including signal.h exposes various PSR_MODE #defines - submitted patch upstream * Misc: o Cbuildv1 and tcwg-web baby-sitting (2/10) o Various meetings (1/10) == Next == * Continue on release/backport process * fix tcwg-web broken pages

11 years, 4 months

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[ACTIVITY] 12-16 May 2014

by Christophe Lyon

Back full time == Progress == * resumed 1:1 calls with Zhenqiang, Venkat, Charles. * GCC trunk cross-validation (2/10): - monitored results - a few improvements/cleanups * Neon-intrinsics tests (5/10) - continuing conversion - needs to add support AArch64 Neon overflow flag * Misc (meetings, conf-call, ..) (3/10) * Successfully tried OpenNX setup put in place by Maxim (on office computer, despite firewall and no root access) == Next == * GCC trunk cross-validation: - monitor and report results - use this system to pre-validate a patch from Kugan - share scripts with Kugan * Neon intrinsics tests: - continue conversion - hopefully push a preliminary version upstream

11 years, 4 months

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[ACTIVITY] Week 20

by Bernie Ogden

== Progress== lowlevellock performance bugs - TCWG-435 [3/10] * Trying to build/test aarch64 on a foundation model cbuild benchmarking - TCWG-360 [4/10] * Integrating Maxim's spec scripts into Kugan's benchmarking branch * Began modifying the branch to use existing cbuild functions where possible Meetings/mail/etc [3/10] == Plan == Holiday next week (w/c 26th May) This week: * Try testing glibc on system qemu rather than foundation model * Carry on with cbuild benchmarking * If time, put together some more experimental memset implementations

11 years, 4 months

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[ACTIVITY] 12 - 16 May 2014

by Omair Javaid

== Progress == * GDB arm v8 record/replay -- Bug fixing: Improve gdb.reverse testsuite results on armv8 [TCWG-451] [2/10] -- core files issue submitted bfd patch upstream [TCWG-451] -- Support for recording Data processing - Advanced SIMD and Cryptographic [TCWG-405] [TCWG-407] [3/10] -- Support for recording A64 Data processing - Floating point instructions [TCWG-404] [TCWG-406] [2/10] * Miscellaneous -- UK visa application submission [3/10] == Plan == * Continue work on issues related to GDB arm v8 record/replay

11 years, 4 months

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[ANNOUNCE] Linaro GCC 4.9 2014.05 released

by Yvan Roux

The Linaro Toolchain Working Group (TCWG) is pleased to announce the 2014.05 stable release of the Linaro GCC 4.9 source package. Linaro GCC 4.9 2014.05 is the second Linaro GCC source package release in the 4.9 series. It is based on FSF GCC 4.9.1+svn210052 and includes performance improvements and bug fixes. With the imminent release of ARMv8 hardware and the recent release of the GCC 4.9 compiler the Linaro TCWG will be focusing on stabilization and performance of the compiler as the FSF GCC compiler approaches version 4.9.1. The Linaro TCWG will provide monthly stable[1] source package releases until FSF GCC 4.9.1 is released. At that point Linaro GCC 4.9 will merge in FSF GCC 4.9.1 and, release Linaro GCC 4.9.1, and then return to a schedule of stable quarterly releases and monthly engineering[2] releases. Interesting changes in this GCC source package release include: * Updates to GCC 4.9.1+svn210052 * Backport of the Ada AArch64 support 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@ * Bug reports should be filed in Launchpad against "Linaro GCC project": http://bugs.launchpad.net/gcc-linaro/+filebug. * Questions? "ask Linaro": http://ask.linaro.org/. * Interested in commercial support? inquire at "Linaro support":mailto: support(a)linaro.org [1] Stable source package releases are defined as releases where the full Linaro Toolchain validation plan is executed. [2] Engineering source package releases are defined as releases where the compiler is only put through unit-testing and full validation is not performed.

11 years, 4 months

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[ACTIVITY] 12 - 16 May 2014

by Venkataramanan Kumar

== Progress == * Reload - IRA bug fix (5/10) - In thumb2 mode, we get a pattern "*ior_scc_scc" for the third argument expression by the combiner pass. - Expression Class:foo(x,0,((y==x)||(z==x))) x gets register r1 and second r2 . - The class object this pointer is passed in r0. r7 is used for stack pointer. - The pattern "*ior_scc_scc" demands more LO_REGISTERS. It needs 5 LO_registers for destination and 4 source operands. But we are left with r3,r4,r5,r6 only. - Such situation is handled for Thumb1 only using TARGET_CLASS_LIKELY_SPILLED_P. Thumb2 should accept HI registers also. - Changing the pattern to accept general registers for destination operation is also not helping. - Need to explore secondary reload macros. * Misc - AMD meetings and internal tasks (2/10) - 1-1 meetings (Ryan, Christophe and Maxim) (1/10) * Testing: Installed packages and ran GCC Linaro compiler 4.8 correctness tests on hardware. Completed running SPEC 2006 for -O3 -mcpu=cortex-a57 flag (2/10). == Plan == * Continue bug fixing. * LTO bootstrap failure * Testing GCC Linaro compiler on hardware. * New laptop install ubuntu, set up chroot and migrate to toolchain 64 environment. * UK VISA processing.

11 years, 4 months

1
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[ACTIVITY] 12 - 16 May 2014

by Kugan

== Progress == * TCWG-413 (8/10) sha1 performance - Looked at IRA dumps and aarch64 target hooks. - GCC now uses FP registers as register class and this results in lots of fmovs for the test-case. - Discussed in list and tried spill_class hook for aarch64. This helps sha1. - Regression tested the change. - Ran Spec2000 with the changes and 168.wupwise, 187.facerec are failing. - Investigation continues. * TCWG-468 (1/10) - Continuing with benchmarking. * Set-up NX and started using it (1/10) == Plan == * Benchmarking. * Upstream zero/sign extension elimination activities. * sha1 performance.

11 years, 4 months

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[ACTIVITY] Week 20

by Zhenqiang Chen

== Issue == * None. == Progress == * Commit three patches to enhance shrink-wrap for loop. But community reports an ICE in dwarf info with the patches. (TCWG-133, 5/10) * Update/test shrink-wrap for apcs patch according to comments (TCWG-482, 2/10) * Loop-invariant heuristic tuning (TCWG-763, 2/10). * Investigate Linaro crosstool-ng gdb build fail for 2014.05 config. But have not find an easy way to fix lsbcc build fail. (1/10). == Plans == * Fix the ICE triggered by shrink-wrap changes. * gdb build fail issue if Linaro still use crosstool-ng for release * Continue loop-invariant heuristic tuning == Planned leaves == * June 2.

11 years, 4 months

1
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[ACTIVITY] May 12-18

by Maxim Kuvyrkov

== Week of May 12th == - Rolled out TCWG development environment. (TCWG-483, 4/10) -- https://collaborate.linaro.org/display/TCWG/TCWG+Development+Environment -- Demo'ed it both inside and outside TCWG. -- Finished up configuration of environment and setup backups. - STREAM performance regression (TCWG-388, 2/10) -- Prepared first batch of patches for upstream submission - Various discussions, including ... (4/10) -- register allocation and reload with Venkat -- register allocation with Kugan -- benchmarking with Kugan -- Maxim Kuvyrkov www.linaro.org

11 years, 4 months

1
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[ACTIVITY] May 5-11

by Maxim Kuvyrkov

== Week of May 5th == - Worked on standardized development environment (TCWG-483, 8/10) -- Deployed it on toolchain64.lava and maximk.linaro.org. -- Demoed and got early feedback from several people. - Various discussions, including ... (2/10) -- GCC debugging and var-tracking pass with Michael. -- Maxim Kuvyrkov www.linaro.org

11 years, 4 months

1
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[ACTIVITY] Week 20

by Renato Golin

== Progress == * Kernel (CARD-1246 5/10) - Named register support in Clang * http://reviews.llvm.org/D3797 * Toolchain (CARD-862 3/10) - Testing libc++abi on ARM, now that it has EHABI - Setting up Chromebook library buildbot (FAILED) - One of the bots had a battery failure, needs to be replaced - Which means we won't have the lib bot soon :( * Background (2/10) - Code review, meetings, discussions, etc. == Plan == * Follow up named register patch upstream * Help LLVMLinux with moving current code to conform to global named regs * Help LLVMLinux with LAVA bots * Replace the failing buildbot * Set up a temporary (local) library buildbot on the spare Chromebook * Try other hardware to replace all Chromebooks

11 years, 4 months

1
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[ACTIVITY] 12 - 16 May 2014

by Will Newton

== Progress == * Various patch review and followup (2/10) * Helping diagnose an aarch64 linker crash in buildroot (1/10) * Failed attempt to update kernel on Chromebook (1/10) * Analyze and benchmark cortex-strings to find the oustanding work (1/10) * Get docker setup with cgroups to measure memory usage (4/10, TCWG-441) * Trying to get NX working on Fedora 20 (1/10) == Issues == * None == Plan == * Get postgresql and hopefully others working with new benchmark setup * Figure out how to make NX work -- Will Newton Toolchain Working Group, Linaro

11 years, 4 months

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[RFC][AArch64] Remove CORE_REGS form reg_class

by Kugan

Hi All, AAarch64 back-end defines GENERAL_REGS and CORE_REGS with the same set of register. Is there any reason why we need this? target hooks like aarch64_register_move_cost doesn’t handle CORE_REGS. In addition, IRA cost calculation also has logics like make common class biggest of best and alternate; this might get confused with this. Attached RFC patch removes it. regression tested for aarch64-none-linux-gnu on qemu-aarch64 with now new regression. Is this OK ? Thanks, Kugan gcc/ 2014-05-14 Kugan Vivekanandarajah <kuganv(a)linaro.org> * config/aarch64/aarch64.c (aarch64_regno_regclass) : Change CORE_REGS to GENERAL_REGS. (aarch64_secondary_reload) : LikeWise. (aarch64_class_max_nregs) : Remove CORE_REGS. * config/aarch64/aarch64.h (enum reg_class) : Remove CORE_REGS. (REG_CLASS_NAMES) : Likewise. (REG_CLASS_CONTENTS) : LikeWise. (INDEX_REG_CLASS) : Change CORE_REGS to GENERAL_REGS.

11 years, 4 months

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[ACTIVITY] 5 - 9 May 2014

by Venkataramanan Kumar

== Progress == * Reload - IRA bug fix (5/10) - Expression foo(a,0,((b==a)||(c==a))) a gets register r1 and second a gets register r6, but third a not able to reuse r6 or r1 and spill failure. - Debugging the IRA dumps and reload dumps - Getting Maxim help * TCWG-180 (3/10) - GCC bootstrap fails with compare errors. - comparing the dis assembly. * Misc (2/10) - AMD meetings - 1-1 meetings - looked at 1 x86 related bug == Plan == * Continue bug fixing. * LTO bootstrap failure

11 years, 4 months

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[ACTIVITY] Week 19

by Yvan Roux

Short week, 2 days off (4/10) == Issues == * None == Progress == * CARD-1162 : Linaro GCC 4.9 (6/10) - Prepared FSF 4.9 branch merge in Linaro one. - Backported Zhenqiang upstream patches. - Iterate with rob on various jenkins issues - Looked at gerrit for the backport reviews * Misc: o Cbuildv1 baby-sitting == Next == * Continue on Linaro GCC 4.9 release.

11 years, 4 months

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[ACTIVITY] 5 - 9 May 2014

by Kugan

== Progress == * TCWG-413 (5/10) - Rebuild FSF 4.8, Linaro 4.8 and Linaro 4.9 releases for aarch64 with crosstool-ng (Kept all the dependencies same and used different gcc). - Lost all the config for running benchmark on the test-machine and set it up again. - Re-ran spec2k benchmarking and results. * TCWG-468 (5/10) - Looked in detail IRA dumps and cost models. - Also looked at IRA and LRA code to get better understanding of the algorithms. - Costs dumped seems odd and looking further. == Plan == * Benchmarking. * Upstream zero/sign extension elimination activities. * sha1 performance.

11 years, 4 months

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[ACTIVITY] 5 - 9 May 2014

by Omair Javaid

== Progress == * GDB arm v8 record/replay: core files issue [TCWG-451] [6/10] -- Add bfd support for missing aarch64 core file handlers. -- Added regset caching functions for aarch64 linux gdb. * GDB arm v8 record/replay: Support for recording A64 Data processing - Floating point instructions [TCWG-404] [3/10] * Miscellaneous [1/10] -- Meetings -- Browse through Linaro training resources. -- UK visa documents preparation. == Plan == * Continue work to support GDB arm v8 record/replay -- Support for recording A64 Data processing - Floating point instructions [TCWG-404] -- Support for recording syscalls, signals etc [TCWG-409] * UK visa application submission.

11 years, 4 months

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[Weekly] 05-09 MAY 2014

by Michael Collison

== This week == - Investigated infinite loop bug [TCWG-290][3/10] Misc (7/10) - Attended ARM Big Picture conference (May 5th - 7th) - Worked on GCC Launchpad bug dispositions as a prelude to bugzilla transition == Next week == - Resolve infinite loop bug - complete spreadsheet for GCC Launchpad bug dispositions == Future == No Plans. == Planned holidays == No Plans

11 years, 4 months

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[Activity] May 5-11

by Rob Savoye

= Progress == * Continue improving LAVA support in DejaGnu. (TCWG 455 - 1/10) * More work on regression test analysis and reporting. (TCWG 448 - 4/10) - Did builds of 4.8, 4.9, and master to establish baseline test results. - Worked on test analysis script. - Jenkins matrix builds & test runs are working, and copying results to toolchain64. * Meetings and Misc (5/10) - Fixing various Cbuildv2 bugs found by yroux dealing with git. - Fixed bug where the GDB build was polluting the destdir with binutils. - Installed OpenNX chroot on toolchain64 with maxim. - Fixed disk on toolchain64 with maxim to access all 4TB. Use GPT... - Added more config triplets to Jenkins, so now it builds everything we support. == Plan == * Install lava-tool and get it working on all the tcwgbuild* machines. * Continue improving LAVA support in DejaGnu. (TCWG 455) * More work on regression test analysis and reporting. (TCWG 448) - Do diffs of new builds test runs from the baseline, not the previous build. * Try to look at the LLVM branch of Cbuildv2, do some testing of it. == Issues == * Jenkins needs to be able to see LAVA slaves as online, but not booted.. * The skiing is good, but the avalanche danger is high, so limits accessibility. * We need a backup plan for toolchain64. * Google groups have problems, so had to setup test results list on one of my servers instead. (ask me if you want to be on the list) The new beta release of GNU Mailman looks very nice. * The chromebooks in our build farm can't build GCC native. - rob -

11 years, 4 months

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[ACTIVITY] Week 19

by Zhenqiang Chen

== Issue == * None. == Progress == * Identify a build environment issue for linux64 gdb binaries "Symbol format `elf32-littlearm' unknown". * Send out shrink-wrap related patches from community review (TCWG-133, 2/10) * Move-loop-invariant heuristic tuning (TCWG-469, 8/10). - Update heuristic according to benchmark testing. == Plan == * Update shrink-wrap patches according to comments. * Continue on move-loop-invariants heuristic tune. == Planned leaves == * June 2.

11 years, 4 months

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[ACTIVITY] Week 19

by Bernie Ogden

== Progress== Holiday [2/10] Fixing performance bugs in lowlevellock - TCWG-435 [4/10] * Initial patch for lowlevellock.h largely done, awaiting an aarch64 test run * About 1/2 of the lowlevellock.h's remain post-patch, need to ask some questions about them cortex-strings memset - TCWG-156 [1/10] * Fixed an alternative implementation, a little more benchmarking investigation cbuild benchmarking branch [1/10] * Hunting for correct benchmark source, added a little more error checking Meetings/mail/etc [2/10] == Plan == More of the same - * Post lowlevellock.h patch and ask some questions * Finish exploring memset alternatives and work out how to benchmark them * Carry on with cbuild benchmarking branch Holiday 26th - 30th May

11 years, 4 months

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[ACTIVITY] Week 19

by Renato Golin

== Progress == * Kernel (CARD-1246 3/10) - Committed Named Register LLVM change - Working on the Clang part - Helping LLVMLinux to set up bots/LAVA tests * Tests/CBuild2 (CARD-716 2/10) - Submitted CBuild2 LLVM patch, waiting for review - Implemented sqrt to pacify GCC on sphereflake * Background (3/10) - Code review, meetings, discussions, etc. * Bank Holiday Monday (2/10) == Plan == * Continue named registers on Clang * Continue LLVMLinux hardware test bot * Run some benchmarks on AArch64 * Check CBuild2 progress, try builds live

11 years, 4 months

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[ACTIVITY] 5 - 9 May 2014

by Will Newton

== Progress == * Bank Holiday Monday (2/10) * glibc patch review and followup (1/10) * Started investigating malloc intensive applications (3/10, TCWG-440) * Investigate a couple of linker issues (1/10) * Figure out how to benchmark postgresql (3/10, TCWG-441) == Issues == * None == Plan == * Develop a good general way to measure memory usage of complex applications -- Will Newton Toolchain Working Group, Linaro

11 years, 4 months

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[ACTIVITY] 21-25 April

by Charles Baylis

== Progress == Bank holiday [2/10] Investigated using D01 board [1/10] Retested and pinged division patch - TCWG-293 [2/10] Added post-index addressing to NEON memory access for ARM -TCWG-430 [5/10] * wrote patch * makes useful improvement to libvpx performance

11 years, 4 months

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[ACTIVITY] 28 April - 2 May

by Charles Baylis

== Progress == Holiday [3/10] Post-indexed addressing for NEON on Aarch64 - TCWG-430 [3/10] * needs much more work than for ARM Revisited apparent NEON scheduling problem in libvpx - TCWG-429 [2/10] * it transpires that this was an incorrect analysis * the assembler code didn't conform to the ABI * upstream has now fixed this Received review for division patch - TCWG-293 [2/10] * needs a rewrite

11 years, 4 months

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[ACTIVITY] Week 18

by Bernie Ogden

(Resending to correct address) == Progress== TCWG-435 needless busy-wait in lowlevellock.c (0/10) * Patches for lowlevellock.c sent to list * Patch for lowlevellock.h still to do TCWG-156 cortex-strings memset (5/10) * Dug through a bunch of docs and fiddled with the source Looking at the cbuild benchmarking branch (2/10) * Some back and forth around getting access to lava lab * Poked around the code, made some small improvements == Misc == Meetings/mail/etc 3/10 == Plan == (Public) holiday on Monday Put together lowlevellock.h patch Do something more substantial with cbuild Finish fiddling with the memset source

11 years, 4 months

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[ACTIVITY] April 28-4

by Maxim Kuvyrkov

== Week of April 28th == - Made a prototype rootfs for benchmarking (CARD-1413, 2/10) -- Got a tutorial from Fathi on how to build openembedded rootfs. -- Wrote up notes at https://collaborate.linaro.org/display/TCWG/How+to+build+openembedded+rootf… - More benchmarking setup (TCWG-413, 2/10) - Various discussions (3/10) -- 1-on-1 with Venkat (NX setup and GCC reload problem) -- 1-on-1 with Kugan (benchmarking handover) -- 1-on-1 with Michael (var-tracking investigation) -- 1-on-1 with Rob (command-line access to LAVA and job submission) - Made NX/schroot rootfs (3/10) -- This can be deployed on Linaro [build] servers and provide standardized development environment for toolchain work. -- More details to follow. - Misc -- Reported a kernel oops related to networking on vexpress64. - Tyler Baker of the LAVA team deserve a special mention for answering all the questions about LAVA from the toolchain group! -- Maxim Kuvyrkov www.linaro.org

11 years, 4 months

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[ACTIVITY] April 21-27

by Maxim Kuvyrkov

== Week of April 21st == - Setup SPEC benchmarking runs in LAVA environment (TCWG-413, 5/10). -- Built SPEC cpu2000/cpu2006 tools for armv7a/armv8 -- Added SPEC CPU2006 support to spec2xxx-utils. - Various discussions (1/10) - Short week due to public holidays (4/10) -- Maxim Kuvyrkov www.linaro.org

11 years, 4 months

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[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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

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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, 4 months

1
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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, 4 months

1
0
0 0

[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, 4 months

1
0
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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, 4 months

1
0
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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, 4 months

1
0
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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, 4 months

1
0
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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, 4 months

2
2
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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, 4 months

1
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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, 4 months

1
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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, 4 months

1
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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, 4 months

1
0
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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, 4 months

1
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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, 4 months

1
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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, 4 months

1
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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, 4 months

1
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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, 4 months

1
0
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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, 4 months

1
0
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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, 5 months

1
0
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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, 5 months

3
3
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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, 5 months

1
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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, 5 months

1
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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, 5 months

2
1
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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, 5 months

1
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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, 5 months

1
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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, 5 months

1
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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, 5 months

1
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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, 5 months

1
0
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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, 5 months

1
0
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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, 5 months

1
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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, 5 months

1
0
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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, 5 months

4
15
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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, 5 months

2
3
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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, 5 months

1
0
0 0

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, 5 months

2
1
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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, 5 months

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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, 5 months

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[ACTIVITY] Week 14

by Zhenqiang Chen

== Issue == * None == Progress == * Half day sick leave. * Create a 64-bit raspbian toolchain for customer. * Recreate roots tarballs needed for cbuildv1 cross validation. * Backport r208511 to linaro 4.8 to fix lp:1273511 and lp:1268893 in 2014.04 release. * Enhancing shrink-wrap. Get unexpected bootstrap fail on X86-64. (8/10, TCWG-133) == Plan == * Continue on shrink-wrap enhancement.

11 years, 5 months

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