linaro-toolchain May 2016

linaro-toolchain@lists.linaro.org

13 participants
37 discussions

New IRC Channel for Linaro Toolchain Working Group

by Matthew Gretton-Dann

All, During Connect the suggestion was made that each working group should have its own IRC Channel for discussions and topics relating to the group in particular (as opposed to #linaro which is 'generic' Linaro conversations). Therefore I have just set up #linaro-tcwg on Freenode for the Toolchain Working Group. This channel is public and open to anyone who wants to talk with the TCWG group about anything toolchain related. Thanks, Matt -- Matthew Gretton-Dann Toolchain Working Group, Linaro

3 years, 10 months

[ACTIVITY] 23 - 27 May 2016

by Yao Qi

* Off on Friday [2/10] # Progress # * TCWG-518, V1 got reviewed, and working on V2. Two existing bugs in GDBserver are found, and fixed. Testing them... [4/10] * Upstream patches review, all of them are about GDB python. [2/10] * Respond to Jim Wilson's question on AIX GDB build failure caused by his binutils patch for AArch64. Confirm that GDB build fail after his patch. [1/10] * Misc, [1/10] # Plan # * Bank holiday on Monday, * TCWG-518, get V2 ready for review, * Ping TCWG-561 and TCWG-547, -- Yao

9 years

[ACTIVITY] 23 - 27 May 2016

by Omair Javaid

=== This Week === Resolved TCWG-231 (LLDB bring up and bug fixing on HiKey 96Board) [TCWG-231] [1/10] -- Ran tests on AArch64 LLDB tests on HiKey and compared with Nexus 9 test results. -- Less than 1% difference in test results and good pass rate found. LLDB ARM: Bug fixes, integration and testing on various ARM platforms [TCWG-228] [2/10] -- Progressed towards resolution. -- Prepared close out setting up RaspberryPi2, RaspberryPi3, Hikey and Chromebook as testers. -- Compiled armhf test results. LLDB Chromebook Test Stability [TCWG-563] [2/10] -- Some further investigation on llvm-chrome-06 test failures. -- Marked and committed some xfails and reported relevant bugs if not already logged. Support for watchpoint un-alligned watchpoint addresses on LLDB AArch64 [TCWG-367] [1/10] -- Debugging of watchpoint handling code and tried out instruction decding. LLDB buildbot updates and maintenance [TCWG-241] [2/10] -- Improved tester script to initiate lldb-server inside a chroot. -- Monitored buildslave stability and Miscellaneous [2/10] -- Meetings, emails, discussions etc. -- Migrated laptop to Ubuntu 16.04 === Next Week === LLDB Chromebook Test Stability [TCWG-563] -- Final words on watchpoint issue on llvm-chrome-06 -- Submit updated makefile.rulez for LLDB tests. -- Report remaining bugs and commit xfails upstream. Support for watchpoint un-alligned watchpoint addresses on LLDB AArch64 [TCWG-367] -- Implement instruction decoding for watchpoint hit detection. A look into kernel code used by Nexus android devices failing watchpoint support [TCWG-622] Miscellaneous -- Out of office on Tuesday 31st 2016 for visa documents preparation.

9 years

[ACTIVITY] Week 21

by Yvan Roux

* ! day off (2/10) == Progress == o Extended validation (2/10) - Benchmarking comparison script on-going - Reproduced armhf schroot slowness on AArch64 Debian Jessie No issues when using Ubuntu (Trusty and Xenial). o Upstream GCC (4/10) - Started ARMv8.1 libatomic support (environment setup, code understanding, ifunc support analysis) o Misc (2/10) * Various meetings and discussions. == Plan == o Continue libatomic work

9 years

[ACTIVITY] 23 - 27 May 2016

by Prathamesh Kulkarni

== This Week == * TCWG-72 (6/10) - Patch iterations based on Richard's suggestions - Reworked most of convert_to_divmod() - Fixing regressions with the patch and added test-cases. - ICE with -m32 on x86_64 for DImode division/mod: https://gcc.gnu.org/ml/gcc-patches/2016-05/msg02302.html * LTO (2/10) a) TCWG-548 (1/10) - Benchmarking jobs submitted twice and failed. b) TCWG-535 (1/10) - Figured out why ICE happens with my patch. * TCWG-319 (1/10) - Validated patch and posted upstream. * Misc (1/10) - Meetings == Next Week == - TCWG-72: Try to workaround issue with -m32 - TCWG-548: start relooking at section anchors. - TCWG-535: Post patch upstream.

9 years

[ACTIVITY] 23-27 May 2016

by kugan

== Progress == PR71252 - ICE in rewrite_expr_tree - Tried various options to fix this and settled on an implementation - Patches sent for upstream review - tested with cpu2006 too - One patch approved PR66726 - Convert expr - Newlib test case is failing due to mi compiled lib - Trying to reduce test case == Plan == Follow upon remaining upstream patches IPA VRP

9 years

[ACTIVITY] 23-27 May 2016

by Peter Smith

== Progress == * LLD Port: - Got hello world running. -- Needed a horrible hack to make lld output PLT and GOT entries for unresolved weak references with default visibility. - Wrote up in Jira the major areas of work that would be needed for a useful port. - Started putting in changes cleanly and writing tests for them. - Currently hitting a few problems with llvm-mc. I can't generate the relocations I need to test the linker. The hello world test case used mainly GCC library objects. -- Most serious is not emitting R_ARM_BASE_PREL for .word _GLOBAL_OFFSET_TABLE - (label+8) == Plan == * On holiday Monday and Tuesday * LLVM MC See how easy it would be to add missing features to llvm-mc as it would allow me to write more tests. * LLD Complete the test cases for the code I've added. Take stock of where the lld port is and decide where to go from there. Options are: - Send an RFC upstream with what I have. It is not sufficient to run hello world but should be relatively uncontroversial. - Cleanly implement the emit the unresolved weak references in the PLT and GOT so hello world will work out of the box on ARM. - Keep going until I've got Thumb2 support so I don't have to use ARM only static libraries to make hello world working. There is obviously a trade off between having a useful linker and the patch size getting out of hand.

9 years

[ACTIVITY] 23-27 May 2016

by Diana Picus

== Progress== * Remove exit-on-error flag from CodeGen tests [TCWG-604] [5/10] - This is a follow-up of TCWG-592: when changing the diag handler, some of the tests started to fail, so we had to add an exit-on-error flag to preserve the old behaviour until we can fix the tests. - Last week's patch fixing the MIR tests (PR27770) - still in upstream review - Last week's patch fixing an AMDGPU test (PR27762) - committed upstream - Last week's patch fixing a BPF test (PR27766) - committed upstream - Submitted another patch fixing a BPF test (PR27767) - committed upstream - Submitted another patch fixing two other BPF tests (PR27768/9) - in upstream review - Investigating one of the AMDGPU tests (PR27761) * Use git worktree in llvm helper scripts [TCWG-587] [4/10] - Started a RFC and a wiki page about the new workflow [1] - People seem to be in favour of it, but there are still some TODOs left before we can merge * Misc [1/10] - Meetings, buildbots == Plan == * Remove exit-on-error flag from CodeGen tests [TCWG-604] - Submit a patch for the AMDGPU test (PR27761) - More investigations on the ARM test (PR27765) * Use git worktree in llvm helper scripts [TCWG-587] - Finish the final touches and have a proper review [1] https://collaborate.linaro.org/display/LLVM/Git+Worktree+Proposal

9 years

[ACTIVITY] 23-27 May 2016

by Christophe Lyon

== Progress == * Validation - cleanup - Fixed regressions in abe (gcc_update, make install, gdb timestamps) - updated abe stable branch (now matches master) - various Jenkins jobs updates, prepared support for gcc-6 based toolchains - compared results of armv8l vs arm toolchains: few, expected differences due to different default tuning * GCC - regressions reports on trunk * Misc (conf-calls, meetings, emails, ....) == Next == * Validation - actually update the Backport job - prepare switch to docker for buildfarm job - cleanup * Backports * GCC - trunk monitoring - more on AdvSIMD intrinsics

9 years

Re: toolchain fetch issues

by Gujulan Elango, Hari Prasath (H.)

Sorry for hitting the wrong mailing list. OK I will check with HTTP instead of HTTPS. Thanks for your time & help. On May 25, 2016 11:02 PM, Jim Wilson <jim.wilson(a)linaro.org> wrote: On Wed, May 25, 2016 at 8:09 AM, Gujulan Elango, Hari Prasath (H.) <hgujulan(a)visteon.com> wrote: > I enabled the -v option of wget and I am able to see the download starts and > fails randomly after progressing to some extent i.e. 10% or 27%. The > connection is reset by peer and wget exits. I tried increasing the timeout > option of wget as well. This is some kind of networking or web server problem. We only know how to fix compiler problems here on the linaro-toolchain list. I did confirm that I can download the file OK, both via wget and via chrome.. I noticed that the https support on releases.linaro.org is not working, and I had to use http instead, but it isn't clear if that is related to your problem. Jim

9 years

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linaro-toolchain May 2016