- linaro-toolchain - lists.linaro.org

[Weekly] 19-23 October 2015

by Michael Collison

== This week == * TCWG-317 - Exploit wide add operations when appropriate for Aarch32 (5/10) - Continued to debug big endian/lto failure of four torture tests - Differences in lto vs. non-lto executables showed no significant differences * TCWG-369 - Exploit wide add operations when appropriate for Aarch64 (4/10) - Resolved three of six test suite failures * Misc (1/10) - Conference calls == Next week == - TCWG-317 - Resolve lto big endian failures by debugging test cases with qemu - TCWG-369 - Resolve remaining test suite failures -- Michael Collison Linaro Toolchain Working Group michael.collison(a)linaro.org

9 years, 8 months

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linux ipv4 forward performance issue

by Liu Ting

Hello all, When upgrading meta-linaro/meta-linaro-toolchain from daisy to fido, we faced drastic performance downgrade (-34.06%) on linux ipv4 forwarding. The board is ls1021atwr (ARM Cortex-A7 MPCore compliant with ARMv7-A architecture). We did some investigation, and suspected that it is caused by the toolchain upgrade. Did someone meet similar issue? The detailed toolchain info: https://git.linaro.org/openembedded/meta-linaro.git/shortlog/refs/heads/fido gcc-linaro-4.9.3-2015.03, glibc-linaro-2.20-2014.11, binutils-linaro-2.25-2015.01 https://git.linaro.org/openembedded/meta-linaro.git/shortlog/refs/heads/dai… gcc-linaro-4.8.3-2014.04, eglibc-linaro-2.19-r2014.04, binutils-linaro-2.24-r2014.03 thanks. -Ting

9 years, 8 months

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[ACTIVITY] Week 41 - 42

by Yvan Roux

o Week 42 off (10/10) == Progress == o Linaro GCC (9/10) * Completed backports and reviews * Delivered GCC 5 2015.10 snapshot * Completed TCWG 389 (deploy snapshot job) o Misc (1/10) * Various meetings == Plan == o Back to work

9 years, 8 months

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[ACTIVITY] 19th - 23rd October

by Bernie Ogden

Mustang benchmarking bringup - (no ticket) [2/10] Controlled Debian build - TCWG-360 [1/10] * Constructed filesystem, works OK as chroot * Next step is to boot it Investigate Workload Automation framework - TCWG-361 [1/10] * Seems to basically work * SPEC support dubious Misc * LAVA uinstance background (TCWG-396, < 1/10) * Noise control experiments (TCWG-358, < 1/10) * ARM management duties [2/10]

9 years, 8 months

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[ACTIVITY] 19 - 23 October 2015

by Prathamesh Kulkarni

== This Week == * TCWG-72 (4/10) - wrote new pass to generate "divmod" internal fn. - investigating segfault during expansion of divmod. * TCWG-319 (2/10) - Benchmarking setup - Running INT benchmarks for a53, a57. * TCWG-310 (1/10) - Looked at how peeling occurs - Email discussions * Public Holiday (2/10) * Misc (1/10) - Meetings == Next week == - Submit patch for TCWG-72 upstream - TCWG-319 benchmarking - Convert ASM_FORMAT_PRIVATE_NAME macro to hook. - Continue with TCWG-310

9 years, 8 months

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[ACTIVITY]

by Renato Golin

== Progress == * Maintenance (5/10) - Investigating some LivermoreLoops that don't vectorise - Reducing cases to single specific causes * Background (5/10) - Code review, meetings, discussions, general support, etc. - More code of conduct stuff, license change to Apache 2 - Following up on sanitizers VMA discussion

9 years, 8 months

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[ACTIVITY] 19 - 23 October 2015

by Yao Qi

* Two days (Tue and Thu) off. [4/10] # Progress # * TCWG-180, patch is committed by Andrew Stubs. [1/10] I review and approve it. * Review patch set "all-stop on top of non-stop for remote". [3/10] Test them on aarch64 and arm. Triage and fix one regression. Review is still on going. * Review patch set "ARM gdbserver software breakpoint". [2/10] Review and approve them. They are preparatory to ARM tracepoint. # Plan # * Patch review. * TCWG-387, Move GDB using libopcodes to decode instructions. -- Yao

9 years, 8 months

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[ANNOUNCE] Linaro Binary Toolchain Release GCC 5.1 2015.08

by Ryan Arnold

The Linaro Toolchain Working Group is pleased to announce the availability of the Linaro Stable Binary Toolchain GCC 5.1-2015.08 Archives. http://releases.linaro.org/components/toolchain/binaries/5.1-2015.08/ These archives provide cross-toolchain executables (compiler, debugger, linker, etc.) and shared libraries (libstdc++, libc, etc.) that target ARM or Aarch64 GNU/Linux and bare-metal environments. The cross-toolchain binaries execute on a Linux or MS Windows (under mingw32) host operating-system. For bugs related to this release please email linaro-toolchain(a)lists.linaro.org or file a bug at https://bugs.linaro.org/enter_bug.cgi?product=Linux%20Binary%20toolchain NEWS * 2015.08 * The Linaro GCC 5.1 2015.08 binary toolchain release is based on the Linaro GCC-5.1-2015.08 source archive release <http://releases.linaro.org/components/toolchain/gcc-linaro/5.1-2015.08/>. The major changes contained in 2015.08 over 2015.05 are described in the sections below on 2015.08-rc1 and 2015.08-rc2 . * 2015.08-rc2 * The Linaro 2015.08-rc2 release-candidate binary toolchain is based on the Linaro GCC-5.1-2015.08-rc1 release-candidate source archive. The only changes between 2015.08-rc1 and 2015.08-rc2 were the following changes in how the binary toolchains were built. The compiler itself was not changed. * x86_64 hosted, armv8l-linux-gnueabihf targetted cross toolchains are now correctly configured. This was broken in 2015.08-rc1. The cross-compiler targetting armv8l-linux-gnueabihf is now correctly configured with --with-arch=armv8-a --with-fpu=neon-fp-armv8 --with-float=hard --disable-multilib --enable-multiarch. * Glibc’s slibdir and libdir were once again modified to address Linaro Bugzilla 1717 – Linaro-4.9-2015.05 moved system libs from /libc/lib/ to /libc/usr/lib/ which breaks things. The following are now the correct locations: libdir=lib/ (linker-scripts and static archives) slibdir=usr/lib/ (shared objects) rtlddir=lib/ (dynamic linker) * 2015.08-rc1 * x86_64 hosted, armv8l-linux-gnueabihf targetted cross toolchain now provided. Delivering on REQ-477 – Enable x86_64 to Aarch32 (32-bit ARMv8-A) cross binary toolchain product release and CARD-1637 – Enable Aarch32 (32-bit ARMv8-A) cross binary toolchain product releases , armv8l-linux-gnueabihf targetted toolchains are now available as part of this release-candidate. * Python support in GDB for both Linux and Mingw32 (32-bit windows). Delivered as requested in the linaro-toolchain mailing list post title – windows binary builds with gdb-python enabled?. * Added missing expat support to GDB. This addresses the following linaro-toolchain mailing list post – "Missing expat support in GDB 7.8 multi-lib enablement for arm bare-metal targets." * A fix for multilib enablement in baremetal toolchains (as described in ABE Review 6862). * Library Paths are now congruent with older Linaro Toolchain path layouts. This addresses Linaro Bugzilla 1717 – Linaro-4.9-2015.05 moved system libs from /libc/lib/ to /libc/usr/lib/ which breaks things. libdir=lib/ (shared objects) slibdir=usr/lib/ (static libraries) rtlddir=lib/ (dynamic linker) -- Ryan S. Arnold Linaro Toolchain Working Group - Engineering Manager www.linaro.org

9 years, 8 months

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Question about the Linaro toolchain version

by Luo Zhenhua

Hi, The default gcc version of Yocto 2.0(Jethro) is 5.2.0, the gcc version in meta-linaro is gcc-4.9.4, may I know if gcc-linaro-4.9.4 will be used for Yocto 2.0 release? when will the linaro gcc be upgraded to gcc-5.x? BTW, can someone please help point out where the Linaro toolchain roadmap can be got? Best Regards, Zhenhua

9 years, 8 months

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[ACTIVITY] 12 - 16 October 2015

by Omair Javaid

== Progress == LLDB development -- Verify LLDB watchpoints on Android Arm and AArch64 targets. [TCWG-405] [4/10] - Ran LLDB testsuite on Nexus5, Nexus 7, Nexus S and Nexus 9 devices. - Started into failing watchpoint tests on all devices. -- Investigate and fix LLDB watchpoints tests that are failing on Android Nexus 9 AArch64 target. [TCWG-405] [5/10] - Debugging of ptrace watchpoint installation code. - Prepared a fix and tested on Nexus 9. Miscellaneous [1/10] -- Meetings, emails, discussions etc. == Plan == Further progress on investigating LLDB watchpoint issues on Android Nexus devices. Local testbots setup using new Android Nexus and Arm linux devices.

9 years, 8 months

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[ACTIVITY]

by Renato Golin

== Progress == * Libraries (3/10) - Back investigating libc++ issues in AArch64 buildbot - http://buildmaster.tcwglab.linaro.org/builders/clang-cmake-aarch64-prototype - Trying to solve the rt/unw/c++ library entanglement in the driver * Buildbots (1/10) - Trying to perf an application on APM, but it crashed while - Rebooted it for now, but on the list to migrate to a newer kernel * Background (6/10) - Code review, meetings, discussions, general support, etc. - Laptop playing stupid again, lost a day trying to fix things - New LLVM "code of conduct" sparked a huge discussion

9 years, 8 months

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[ACTIVITY] 12th - 16th October

by Bernie Ogden

Investigate effectiveness of noise-control measures - TCWG-358 [4/10] * Recovered from a couple more crashes, existing logging sheds no light * Explored the existing data a bit, need more to draw any conclusions Controlled image builds - TCWG-360 [2/10] * Looked into controlled, repeatable debian builds, B&B-style * Got the general shape of it, checking my understanding with Fathi LAVA microinstance - TCWG-396 [1/10] * Sent doc for review, revised it a bit Misc [3/10] * Exported benchmark/results handling rules to a place other Linaro-ans can read them * Updated example LAVA jobs to use tcwg tag (for load balancing purposes) * Meetings, mail, etc =Plan= Generate more noise data, watching out for crashes Produce a candidate Debian image, document how I did it If time, learn about Workload Automation

9 years, 8 months

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[Weekly] 12 - 16 October 2015

by Michael Collison

== This week == * TCWG-317 - Exploit wide add operations when appropriate for Aarch32 (6/10) - Debugging failures on -flto/big endian combination - Wrote code for big endian lane support; failures still exist - Debugging lto to see if optimization is causing failures * TCWG-77 - Transform end of loop conditions to min_expr (1/10) - patch approved, checked in upstream * Misc (1/10) - Conference calls * US Holiday, Monday October 12th (2/10) == Next week == - TCWG-317 - Debug to determine if lto is causing failures

9 years, 8 months

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[ACTIVITY] 12th - 16th October

by Kugan

== Progress == - Run spec2006 with DS5/Streamline Performance Analyzer (3/10) - Setup DS5 - Setting up client for chromebook which requires kernel rebuild - Widening pass (TCWG-547) - 5/10 * iterated based on review comments * re-wrote GIMPLE_DEBUG handling - Misc (2/10) * gcc/bug list == Plan == * perf with spec2000 * continue with widening pass based on feedback

9 years, 8 months

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[ACTIVITY] 12th - 16th October

by Yao Qi

# Progress # * TCWG-162, Aarch64 non-stop debugging (or displaced stepping). [1/10] Patches are committed. * TCWG-335, HW breakpoint on 2-byte aligned address, [3/10] patch is tested against most recent kernel. Everything works. Patch is committed. * TCWG-166, Review ARM software breakpoint in GDBserver patches. [1/10] Almost done. * Review various upstream patches. [2/10]. * Misc, [3/10] ** Meeting, ** Write up some slides about recent GDB development, and present them in ARM. # Plan # * TCWG-387, Move GDB using libopcodes to decode instructions. * More upstream patches review. * Two days off on Tue and Thu. Maybe off on Friday too. -- Yao

9 years, 8 months

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[ANNOUNCE] Linaro GCC 5 2015.10 snapshot

by Yvan Roux

The Linaro Toolchain Working Group (TCWG) is pleased to announce the 2015.10 snapshot of the Linaro GCC 5 source package. This monthly snapshot[1] is based on FSF GCC 5.2+svn228499 and includes performance improvements and bug fixes backported from mainline GCC. This snapshot contents will be part of the 2015.11 stable [1] quarterly release. This snapshot tarball is available on: http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.2-2015.10/ Interesting changes in this GCC source package snapshot include: * Updates to GCC 5.2+svn228499 * Backport of [Bugfix] [AArch32] Fix PR target/29693 * Backport of [Bugfix] [AArch32] PR 52144 Fix ARM/thumb attribute target * Backport of [Bugfix] [AArch32] PR 52144 Fix ARM/thumb attribute target * Backport of [Bugfix] [AArch32] PR/63870 Add a __builtin_lane_check * Backport of [Bugfix] [AArch32] PR/63870 Add qualifier to check lane bounds in expand * Backport of [Bugfix] [AArch32] PR 66541, 52144 Fix ARM/thumb pragma target * Backport of [Bugfix] [AArch32] PR middle-end 64744/48470/43404 * Backport of [Bugfix] [AArch32] PR target/52144 attribute target (thumb,arm) [2.2/6] * Backport of [Bugfix] [AArch32] PR target/52144 target attributes Clean up arm_option_params_internals macro settings for attribute/pragma targets * Backport of [Bugfix] [AArch32] PR target/65768 * Backport of [Bugfix] [AArch64] PR63870 Neon error messages for vldN_lane/vstN_lane * Backport of [Bugfix] Fix PR66168 * Backport of [Bugfix] Fix PR67280 and Linaro BZ #1765 * Backport of [Bugfix] PR c/49551 * Backport of [Bugfix] PR middle-end/64130 * Backport of [Bugfix] PR middle-end/66726 * Backport of [Bugfix] PR target/65768 Check cost of constants before propagating * Backport of [Bugfix] PR tree-optimization/67043 * Backport of [AArch32] 1-ARM/Thumb target attributes * Backport of [AArch32] 2-ARM/Thumb target attributes * Backport of [AArch32] 3-ARM/Thumb target attributes * Backport of [AArch32] Add ARM/thumb attribute target * Backport of [AArch32] Add ARM/thumb pragma target * Backport of [AArch32] Add TARGET_OPTION_PRINT * Backport of [AArch32] attribute target (thumb,arm) [2.1/6] * Backport of [AArch32] Correct spelling of references to ARMv6KZ * Backport of [AArch32] Fix ChangeLog * Backport of [AArch32] fix date * Backport of [AArch32] Fix static interworking call * Backport of [AArch32] Fix thinko in use of TARGET_UNIFIED_ASM * Backport of [AArch32] Fuseable is not a word -> s/fuseable/fusible/g * Backport of [AArch32] Rename LOGICAL_OP_NON_SC to LOGICAL_OP_NON_SHORT_CIRCUIT * Backport of [AArch32] Restrict MAX_CONDITIONAL_EXECUTE when -mrestrict-it is in place * Backport of [AArch32] Use dmb ish instead of dmb sy for ARM * Backport of [AArch64] 1/3 ARMv8.1 Use atomic compare-and-swap instructions when available * Backport of [AArch64] [1/4] Define candidates for instruction fusion in a .def file * Backport of [AArch64] 1/5 Use atomic instructions for swap and fetch-update operations * Backport of [AArch64] 2/3 ARMv8.1 Use the atomic compare-and-swap instructions when available * Backport of [AArch64] [2/4] Control the FMA steering pass in tuning structures rather than as core property * Backport of [AArch64] 2/5 Make BIC, other logical instructions, available * Backport of [AArch64] 3/3 ARMv8.1 Use the atomic compare-and-swap instructions when available * Backport of [AArch64] [3/4] De-const-ify struct tune_params * Backport of [AArch64] 3/5 Add atomic load-operate instructions * Backport of [AArch64] [4/4] Add -moverride tuning command, and wire it up for control of fusion and fma-steering * Backport of [AArch64] 4/5 Use atomic load-operate instructions for fetch-update patterns * Backport of [AArch64] 5/5 Use atomic load-operate instructions for update-fetch patterns * Backport of [AArch64] Add ACLE predefined marcos: __ARM_ALIGN_MAX_PWR and __ARM_ALIGN_MAX_STACK_PWR * Backport of [AArch64] Add support for ARMv8.1 command line options * Backport of [AArch64] Always register fma_steering pass but gate it on the target option instead * Backport of [AArch64] [armv8.1] Expand +rdma documentation, small changes to march and mcpu text * Backport of [AArch64] --with-arch in config.gcc support "." * Backport of [AArch64] Change %ld to %wd for HOST_WIDE_INT parameter * Backport of [AArch64] Fix another ICE with -mgeneral-regs-only * Backport of [AArch64] Fix ICES with -mgeneral-regs-only / -march=...+nofp * Backport of [AArch64] fix regrename pass to ensure renamings produce valid insns * Backport of [AArch64] Fix type of *<LOGICAL:optab>_one_cmpl_<SHIFT:optab><mode>3 pattern * Backport of [AArch64] Fuseable is not a word -> s/fuseable/fusible/g * Backport of [AArch64] Improve spill code - swap order in shl pattern * Backport of [AArch64] Improve spill code - swap order in shr patterns * Backport of [AArch64] movi type attribute confusion * Backport of [AArch64] Removed unused SLOWMUL target flags * Backport of [AArch64] typo fix in attribute for vst2_lane * Backport of [AArch64] Use conditional negate for abs * Backport of [Testsuite] [AArch32] Add -mfloat-abi=softfp to some xscale tests * Backport of [Testsuite] [AArch32] Disable attr_thumb.c test when Thumb mode is not supported * Backport of [Testsuite] [AArch32] Do not override -mcpu in no-volatile-in-it.c * Backport of [Testsuite] [AArch32] Fix gcc.target/arm/attr_thumb.c * Backport of [Testsuite] [AArch32] Fix gcc.target/arm/thumb_ifcvt.c * Backport of [Testsuite] [AArch32] gcc.target/arm/pr65647.c should not add -mfloat-abi=soft * Backport of [Testsuite] [AArch32] target attribute cleanup directives * Backport of [Testsuite] [AArch64] Testsuite check for sqrt_insn * Backport of [Testsuite] [AArch64] vld1-vst1_1.c: Add missing float32x4_t case * Backport of [Testsuite] AdvSIMD intrinsics tests cleanup: remove useless expected values * Backport of [Testsuite] Don't specify "dg-do run" explicitly for vect test cases * Backport of [Testsuite] gcc.target/arm/neon-reload-class.c: Remove movw and movt * Backport of [Testsuite] g++.dg/ext/pr57735.C should not run if the testsuite is explicitly passing -mfloat-abi=hard * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] New AdvSIMD test * Backport of [Testsuite] Skip tests for inappropriate multilibs * Backport of [Misc] [1] Allow REG_EQUAL for ZERO_EXTRACT * Backport of [Misc] Set REG_EQUAL * Backport of [Misc] [2] Allow REG_EQUAL for ZERO_EXTRACT * Backport of [Misc] Fix ChangeLog * Backport of [Misc] fix segfault in verify_flow_info() with -dx option * Backport of [Misc] fix typo * Backport of [Misc] Fix typo: Rename insn_reservation cortex_53_advsimd to cortex_a53_advsimd * Backport of [Misc] Fuseable is not a word -> s/fuseable/fusible/g * Backport of [Misc] [ifcvt Fix typo in comment * Backport of [Misc] [match-and-simplify] fix incorrect code-gen in 'for' pattern * Backport of [Misc] [match-and-simplify] reject expanding operator-list to implicit 'for' * Backport of [Misc] [match-and-simplify] report error for invalid operator-lists * Backport of [Misc] [simplify-rtx][2/2] Simplify - (y ? -x : x) -> (!y ? -x : x) * Backport of [Misc] The comparison in a compare exchange should not take place in VOIDmode * Backport of [Misc] Use cinc mnemonic for *csinc2<mode>_insn * Backport of [Misc] warn for empty struct -Wc++-compat * Backport of [Misc] [Driver] Wrong C++ paths when configuring with "--with-sysroot=/" * Backport of [Misc] [combine][1/2] Try to simplify before substituting * Backport of [Doc] [AArch64] Clarify feature modifiers {no,}{fp,simd,crypto} * Backport of [Doc] [AArch64] Fix position of -moverride documentation * Backport of [Doc] move (Variable Attributes, Type Attributes) up 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 bugzilla against GCC product: http://bugs.linaro.org/enter_bug.cgi?product=GCC * Interested in commercial support? inquire at "Linaro support": mailto:support@linaro.org [1]. Stable source package releases are defined as releases where the full Linaro Toolchain validation plan is executed. [2]. Source package snapshots are defined when the compiler is only put through unit-testing and full validation is not performed.

9 years, 8 months

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[ACTIVITY] Week 40 #2

by Yvan Roux

== Progress == o Linaro GCC (9/10) * Backports and Reviews - FSF branch merge - AArch64 armv8-1 support backported - Attribute target almost done * Long discussion on infra and stability o Misc (1/10) * Various meetings == Plan == o Complete backports o 2015.10 Snapshot

9 years, 8 months

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[ACTIVITY] 4th - 9th October

by Bernie Ogden

LAVA uinstance for benchmarking - TCWG-396 [3/10] * Long meeting with Renato + LAVA/lab people * Much thinking about the security side * Wrote up rough draft of what I understand the design to be Investigate effectiveness of noise control measures - TCWG-358 [3/10] * Set up new host node * Dealt with one host node crash, one target crash ** Noticed that target was writing logs to tmpfs, changed that so I can investigate next crash * Both sides stayed up through the weekend, hurrah * Some work on data-massaging scripts Misc [4/10] Heavier than usual week mail-wise, plus performance review prep =Plan= Clean up uinstance design, circulate to make sure we're all on same page Look at data from experiments so far Investigate B&B's Debian-building tools

9 years, 8 months

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[ACTIVITY] 5 - 9 October 2015

by Kugan

== Progress == - 1 day off public holiday (2/10) - Upstream patch follow-ups (2/10) * https://gcc.gnu.org/ml/gcc-patches/2015-07/msg02196.html Trying to reproduce 1.cc failure found with Christophe's testing * https://gcc.gnu.org/ml/gcc-patches/2015-10/msg00129.html Committed it and verified this will not happen with linaro-5 branch - Widening pass (TCWG-547) - 4/10 * iterated based on review comments - Misc (2/10) * gcc/bug list * setup vpn to lab == Plan == * perf with spec2000 * continue with widening pass based on feedback

9 years, 8 months

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[ACTIVITY]

by Renato Golin

== Progress == * Maintenance (1/10) - Removed redundant DefaultCPU in ARMTargetInfo * Buildbots (4/10) - Looong discussions upstream about stability of buildbots - Trial with IFC6410 marginally successfull, still not good enough, aborting - Moved benchmark buildbot to silent (avoid unnecessary spam) - Writing up some docs on current infra and plan * Infrastructure (3/10) - Long internal discussions about stability of TCWG validation - Agreeing on a LAVA micro-instance in TCWG for benchmarks * Background (2/10) - Code review, meetings, discussions, general support, etc. - Checking status of OpenMP on AArch64 (~10 failures out of ~240 tests) == Plan == More stuff...

9 years, 9 months

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[ACTIVITY] 5-9 October 2015

by Christophe Lyon

== Progress == * Infrastructure/validation (3/10) - prototyping a new Jenkins to job properly allocate testers. This raises more questions.... * Backports (1/10) - a few reviews * GCC (3/10) - sent updated patch for vtbX34 AdvSIMD intrinsics - discussed a few regressions * Misc (conf calls, meetings, emails, ...) (3/10) == Next == * Backports reviews * Infrastructure * GCC devs

9 years, 9 months

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[ACTIVITY] 5th October -- 9th October

by Yao Qi

# Progress # * TCWG-162, Aarch64 non-stop debugging (or displaced stepping). [4/10] After testing, patches are posted upstream. * In order to review one c++ debugging patch, learn some C++ abi, vtable and VTT, etc. Understand gcc dump by -fdump-class-hierarchy. [3/10] * Fix GDB cxx build breakage caused by my patch. [1/10] * Ask the effect of -fstack-check=specific to AArch64 prologue. GDB needs update. [1/10] * Misc, email, meeting. [1/10]. # Plan # * TCWG-162, commit patches if no objections. * TCWG-387, use libopcodes to decode instructions in GDB. -- Yao

9 years, 9 months

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ILP32 is a parity feature to x86_64 (x32)

by Pinski, Andrew

9 years, 9 months

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Fw: [Bug target/67877] New: Split stack needs to be support for AARCH64

by Pinski, Andrew

FYI. This is a parity feature with both PowerPC64 and x86_64. Needed to support GCCgo. Note full gold support is needed too. ---------- Forwarded message ---------- From: pinskia at gcc dot gnu.org <gcc-bugzilla(a)gcc.gnu.org> Date: Tue, Oct 6, 2015 at 3:30 PM Subject: [Bug target/67877] New: Split stack needs to be support for AARCH64 To: gcc-bugs(a)gcc.gnu.org https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67877 Bug ID: 67877 Summary: Split stack needs to be support for AARCH64 Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: pinskia at gcc dot gnu.org Target Milestone: --- Target: aarch64-linux-gnu* To support gccgo better split stack should be implemented.

9 years, 9 months

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[ACTIVITY] 28th August - 2nd October

by Bernie Ogden

Connect recovery - [2/10] Investigate effectiveness of noise-control measures - TCWG-358 [3/10] * Host node crashed, tried to recover it, failed, started building a new one Jenkins automation - TCWG-348 [3/10] * Everything in place up to first interaction with LAVA kvm * Considered LAVA team's micro-instance proposal Misc [2/10] =Plan= Discuss micro-instance proposal Work on whatever comes out of discussion Finish building new host node, get experiments running again

9 years, 9 months

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