- linaro-toolchain - lists.linaro.org

[ACTIVITY] 18-22 March 2019

by Christophe Lyon

== Progress == * FDPIC - Setting up new stm32f429-disc1 board. Still not working with recent kernel * GCC upstream validation: - reported a few regressions * GCC: - (GNU-99) ubsan / bare-metal. No progress. * misc (conf-calls, meetings, emails, ....) - reviewing infra script patches - added qemu as a toolchain component supported by ABE. - merged tcwg_bmk branch into master == Next == FDPIC: - GCC: handle feedback on v4 patches - GDB: update patches - uclibc-ng: look at how to test fdpic mode with openadk - complete board setup Infra: - benchmarking jobs update

6 years, 5 months

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[ACTIVITY] Week ending 15th March 2019

by Peter Smith

[LLVM-542] Compiling zephyr with clang - Shared patches with Zephyr team lead, who has integrated them into a private branch and has locally fixed some of the incompatibilities/warnings - Went through the Zephyr samples to get build instructions for the ones compatible with Arm dev-boards. [Intel-CET] patches to LLD (similar to BTI) - Reviewed patches and made suggestion for an alternative design. Will need to re-review the follow up this week. [LLVM-523] .ARM.exidx redesign - Responded to review comments, will need to ping again this week. Linaro Connect - Preparations for hack room - Started on Presentation on cross compilation, need to finish slides this week.

6 years, 5 months

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[ACTIVITY] week ending 17 Mar 2019

by Richard Henderson

[VIRT-343 # ARMv8.5-RNG, Random Number Generator ] Three versions posted, with good review on the crypto side. Generalized our existing infrastructure to use crypto quality numbers by default, and decent deterministic numbers when given the -seed command-line argument. Converted our existing hw random number devices; implemented the AA64 registers; filled in the PPC64 stubs; implemented the X86 tcg insns. [VIRT-327 # Richard's upstream QEMU work ] Reviewed and revised some target/hppa patches from Sven. Final pull request for hppa for 4.0. Final pull request for decodetree. Revised the tcg extract2 patch set; delay this for 4.1. r~

6 years, 5 months

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[ACTIVITY] 11 March - 15 March 2019

by Prathamesh Kulkarni

== This Week == * PR88839 (8/10) - Addressing suggestions by Richard. - Patch works for all cases except for VNx2DI/VNx2DF modes. I have a workaround for those two cases but investigating for a better approach. * Validation (1/10) - Submitted patches to merge tcwg_gnu branch into master for jenkins-scripts/ * Misc (1/10) - Meetings == Next Week == - Continue ongoing tasks

6 years, 5 months

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[ACTIVITY] week ending Mar. 17 2019

by Alex Bennée

Upstream Work ([VIRT-109]) ========================== - posted {PATCH} scripts/qemugdb: re-license timers.py to GPLv2 or later Message-Id: <20190311165538.6623-1-alex.bennee(a)linaro.org> - started discussion on the state of QEMU CI Message-Id: <6D897F0B-D7A6-4A16-93E0-3F68FF53B0BE(a)euphon.net> - looked at GitLab's runners as an CI scaling option - looks like [arm64 support has somewhat stalled] - spammed Peter with PRs for Tuesday's softfreeze - posted {PULL 00/26} final testing updates for 4.0 Message-Id: <20190312170931.25013-1-alex.bennee(a)linaro.org> - including {PATCH v2 0/7} testing/next for softfreeze Message-Id: <20190312105547.4755-1-alex.bennee(a)linaro.org> - and {PATCH v4 00/21} final tcg tests for 4.0 Message-Id: <20190312155947.14918-1-alex.bennee(a)linaro.org> - posted {PULL 0/5} gitdm updates for 4.0 Message-Id: <20190312193458.9171-1-alex.bennee(a)linaro.org> [VIRT-109] https://projects.linaro.org/browse/VIRT-109 [arm64 support has somewhat stalled] https://gitlab.com/gitlab-org/gitlab-runner/merge_requests/725 Other ===== - more work on Connect presentation Completed Reviews [1/1] ======================= {Qemu-devel} {PATCH} ci: store Patchew configuration in the tree Message-Id: <20190315091941.23669-1-pbonzini(a)redhat.com> Absences ======== - Connect BKK19 (1-5th April 2019) - holiday after Connect Current Review Queue ==================== * {PATCH v4 00/19} Acceptance Tests: target architecture support Message-Id: <20190312121150.8638-1-crosa(a)redhat.com> * {PATCH 0/5} travis-ci: Build EDK2 roms Message-Id: <20190311003052.13778-1-philmd(a)redhat.com> * {RFC v2 00/38} Plugin support Message-Id: <20181209193749.12277-1-cota(a)braap.org> * {PATCH+RFC 0/6} target/arm: Define cortex-a{73,75,76} Message-Id: <20190223023957.18865-1-richard.henderson(a)linaro.org> * {Qemu-devel} {PATCH 0/9} tcg: Add tcg_gen_extract2_{i32,i64} Message-Id: <20190307144126.31847-1-richard.henderson(a)linaro.org> * {Qemu-devel} {RFC PATCH 0/6} pc: Support firmware configuration with -blockdev Message-Id: <20190225183757.27378-1-armbru(a)redhat.com> -- Alex Bennée

6 years, 5 months

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[ACTIVITY] report week ending 15 Mar

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] + lots of code review and other work for softfreeze + tracked down the bug that caused regressions running UEFI in a KVM guest with commit 823e1b3818f9b1, and sent out a fix thanks -- PMM

6 years, 5 months

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[ACTIVITY] 11-15 March 2019

by Christophe Lyon

== Progress == * FDPIC - Setting up new stm32f429-disc1 board. Boots OK with buildroot's default 4.11 kernel. Boot seems to fail starting with 4.13 (recent kernel needed to have FDPIC support) * GCC upstream validation: - reported a few regressions * GCC: - (GNU-99) ubsan / bare-metal. No progress. * misc (conf-calls, meetings, emails, ....) - reviewing infra script patches - adding qemu as a toolchain component supported by ABE. A bit convoluted because of manifest handling. == Next == FDPIC: - GCC: handle feedback on v4 patches - GDB: update patches - uclibc-ng: look at how to test fdpic mode with openadk - complete board setup Infra: - benchmarking jobs - add QEMU to list of components built by ABE

6 years, 5 months

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[ACTIVITY] 11 - 15 March 2019

by Diana Picus

== Progress == * Out of office 1 day (Thursday) * [Thumb GlobalISel] Bugfixes [LLVM-544] - The test-suite compiles and executes without failures (with fallback to DAG ISel) - We get some bus errors in the selfhost, which are due to unaligned 64-bit stores. Apparently when alignment checks were introduced in the legalizer, they were only used for types < 32 bits. Currently testing a patch to fix this oversight. * LLVM 8.0.0 Release for ARM & AArch64 [LLVM-526] - rc5 looks good on AArch64, ARM is still in progress (waited for LSS-570) == Plan == * Wrap up LLVM-544 * Upload rc5 when ARM is ready

6 years, 5 months

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[ACTIVITY] week ending 10 Mar 2019

by Richard Henderson

[VIRT-344 # ARMv8.5-MemTag, Memory Tagging Extension ] Posted v4, with system mode only. [VIRT-298 # ARMv8.4-CondM, Condition flag manipulation ] [VIRT-329 # ARMv8.5-CondM, Condition flag manipulation ] [VIRT-337 # ARMv8.0-SB, Speculation Barrier ] [VIRT-338 # ARMv8.0-PredInv, Prediction Invalidation ] [VIRT-330 # ARMv8.5-FRINT, Floating-point to integer ] All upstream. [VIRT-327 # Richard's upstream QEMU work ] Reviewed s390x vector patch set 3. Reviewed renesas rx patch set 3. Posted some patches and thoughts for https://bugs.linaro.org/show_bug.cgi?id=4274 Implemented extract2 as a tcg opcode. Minor hppa bug fixes. Lots more work on decodetree and A32+T32+T16 conversion. r~

6 years, 5 months

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[ACTIVITY] week ending 10 March 2019

by Peter Smith

- Intel CET review (Related to BTI support in LLD), raised issue of multiple PT_NOTE sections one per alignment https://reviews.llvm.org/D59120 , commented on command line options. - LLVM-523 redesigned the LLD handling of ARM exidx sections to centralise more of the Arm specific implementation details in one place. Hope to post upstream to get some movement on the review to add missing .ARM.exidx sections for chrome OS team. - LLVM-542 Managed to build most of the Zephyr examples for clang, shared patches to do so with zephyr tech lead. - Some research for some ABI topics. - Some thoughts for Linaro connect activities, started team calendar. Next week: - Start on my connect presentation

6 years, 5 months

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[ACTIVITY] Week 10

by Yvan Roux

o LLVM * Machine outliner: - Stack alignment and refactoring. - Start to prepare BKK19 talk * Bots babysitting * Built 8.0.0-rc4 binaries for x86 and ARM, got issues to start the job on D05 o Misc * Completed BKK19 and EuroLLVM trips. * Various meetings and discussions.

6 years, 5 months

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[ACTIVITY] 4-6 March 2019

by Christophe Lyon

== Progress == * FDPIC - (GNU-411) GDB: debugging problems with FDPIC support. Working on setup of an stm32 board. * GCC upstream validation: - reported a few regressions * GCC: - (GNU-99) ubsan / bare-metal. No progress. * misc (conf-calls, meetings, emails, ....) - reviewing infra script patches - debugging new benchmarking round-robin jobs == Next == FDPIC: - GCC: handle feedback on v4 patches - GDB: update patches - uclibc-ng: look at how to test fdpic mode with openadk - complete board setup Infra: - benchmarking jobs - add QEMU to list of components built by ABE Reply Forward

6 years, 5 months

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[ACTIVITY] week ending Mar. 10 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= QEMU plugin support ([VIRT-280]) - have an ostensibly working [working softmmu demacro branch] - wrote a test case for i386 but ran into issues with x86_64 Message-Id: <87va0vgad2.fsf(a)zen.linaroharston> - started looking at doing test case in Open Firmware (tests/prom-env-test.c) - discovered gprof reports break for out-of-tree builds [VIRT-280] https://projects.linaro.org/browse/VIRT-280 [working softmmu demacro branch] https://github.com/stsquad/qemu/tree/testing/enable-system-tcg-tests-v3-wit… Upstream Work ([VIRT-109]) ========================== - reviewed {PATCH} target/mips: Fix minor bug in FPU Message-Id: <1551978650-23207-1-git-send-email-mateja.marjanovic(a)rt-rk.com> - added 2p to a number of bike-shedding threads around build system - started pulling together [next testing branch] for softfreeze - annoying bug in ppc64 breaks gitlab CI mirror - tracked down [some historical QEMU performance regressions] - posted {RFC PATCH} docs/booting.rst: start documenting the boot process Message-Id: <20190308211557.22589-1-alex.bennee(a)linaro.org> [VIRT-109] https://projects.linaro.org/browse/VIRT-109 [next testing branch] https://github.com/stsquad/qemu/tree/testing/next [some historical QEMU performance regressions] https://diasp.eu/posts/ec86de10240e01376f734061862b8e7b Other ===== - handling feedback/questions for [GSoC/Outreachy project] [GSoC/Outreachy project] https://wiki.qemu.org/Internships/ProjectIdeas/TCGCodeQuality Completed Reviews [4/4] ======================= {PATCH v2 00/11} pflash: Fixes and cleanups Message-Id: <20190226193408.23862-5-armbru(a)redhat.com> - CLOSING NOTE [2019-03-01 Fri 16:59] Looks like a good cleanup {PATCH v3 00/14} pflash: Fixes and cleanups Message-Id: <20190307130323.9353-1-armbru(a)redhat.com> - CLOSING NOTE [2019-03-08 Fri 17:07] Looks good {PATCH v3 00/12} Enable build and install of our rST docs Message-Id: <20190305172139.32662-1-peter.maydell(a)linaro.org> - CLOSING NOTE [2019-03-08 Fri 17:08] Now merged, but broke Travis CI {Qemu-devel} {PATCH v6 00/51} Support Kconfig in QEMU Message-Id: <1549562254-41157-1-git-send-email-pbonzini(a)redhat.com> - CLOSING NOTE [2019-03-08 Fri 17:08] Now merged Absences ======== - Connect BKK19 (1-5th April 2019) - holiday after Connect Current Review Queue ==================== * {RFC v2 00/38} Plugin support Message-Id: <20181209193749.12277-1-cota(a)braap.org> * {PATCH+RFC 0/6} target/arm: Define cortex-a{73,75,76} Message-Id: <20190223023957.18865-1-richard.henderson(a)linaro.org> * {Qemu-devel} {PATCH 0/9} tcg: Add tcg_gen_extract2_{i32,i64} Message-Id: <20190307144126.31847-1-richard.henderson(a)linaro.org> * {Qemu-devel} {RFC PATCH 0/6} pc: Support firmware configuration with -blockdev Message-Id: <20190225183757.27378-1-armbru(a)redhat.com> * {Qemu-devel} {PATCH 00/23} tests/tcg/xtensa: conditionalize xtensa tests Message-Id: <20190219061111.10231-1-jcmvbkbc(a)gmail.com> * {PATCH 00/10} Rework debug exception handling code Message-Id: <20190301132809.24653-7-will.deacon(a)arm.com> -- Alex Bennée

6 years, 5 months

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[ACTIVITY] report week ending 8 Mar

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] + code review - add watchdog device to stellaris boards - bcm2836 "local timer" device - RTH's rolled-up patchset for SB, PredInv, CondM, FRINT extensions - Eric's patchset to allow the 'virt' board to have more than 255GB of RAM - a patchset to add a "generic nommu" board for NiosII + assembled a target-arm pull request for softfreeze + fixed some minor issues with the "build sphinx docs" patches, and got them into master (and then fixed some more minor issues...) * VIRT-268 [QEMU support for dual-core Cortex-M Musca board] + progress on M-profile floating point: - finished first draft of changes to exception handling code - this is now on hold as we are into softfreeze for QEMU 4.0 and other work for that release will take priority for the next few weeks thanks -- PMM

6 years, 5 months

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[ACTIVITY] 4 March - 8 March 2018

by Prathamesh Kulkarni

== This Week == * PR88839 - Poor implementation of blend like permutes (4/10) - Addressing suggestions by Richard on patch * GCC vectorizer (2/10) - Background reading * Validation (1/10) - Added more bootstrap configs for tcwg_gnu job - Committed patch to abe to enable bootstrap implicitly when buildconfig is set. - Started tracking for tcwg_gnu ci job (init_configuration == false). * Public holiday (2/10) * Misc (1/10) - Meetings == Next Week == - Continue ongoing tasks

6 years, 5 months

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[ACTIVITY] Week 09

by Yvan Roux

o LLVM * Back to machine outliner after vacation - Rebased on upstream master branch - Working on stack alignment and refactoring. o Misc * Preparing BKK19 and EuroLLVM trips. * Various meetings and discussions.

6 years, 5 months

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[ACTIVITY] 25 February - 1 March 2019

by Kugan Vivekanandarajah

* PR88838 - I have a patch which solves this. * adds iv in Pmode but compare_type in 32bit - It exposes a latent bug in fwprop in regression testing - Looking into it == Plan == * Complete above PRs * Look at GDB BZ #21221 - gdb hangs while stepping an empty loop

6 years, 5 months

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[ACTIVITY] week ending 3 Mar 2019

by Richard Henderson

Progress: [VIRT-274 # ARMv8.2-FHM, Floating-point multiplication variant ] Now upstream. [VIRT-298 # ARMv8.4-CondM, Condition flag manipulation ] [VIRT-329 # ARMv8.5-CondM, Condition flag manipulation ] [VIRT-337 # ARMv8.0-SB, Speculation Barrier ] [VIRT-338 # ARMv8.0-PredInv, Prediction Invalidation ] [VIRT-330 # ARMv8.5-FRINT, Floating-point to integer ] Posted an omnibus of SB+PredInv+CondM+FRINT that I have labeled "v3", as 3 > any individual revision previously used. [VIRT-327 # Richard's upstream QEMU work ] Reviewed s390x vector patch set v2. Implemented pattern groups in decodetree. Prototyped A32 conversion to decodetree; started a second revision that incorporates T32. Started looking at https://bugs.linaro.org/show_bug.cgi?id=4274 I can swizzle things around by changing the group name from "cp_regs" to the predefined "system", but somehow those regs are *also* registered with "general". Which means the undesired behaviour by which "info regs" prints all of the system registers still exists. r~

6 years, 5 months

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[ACTIVITY] report week ending 1 Mar

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] + upstream code review and pull request handling + respin of patchset to enable building our Sphinx RST documentation * VIRT-268 [QEMU support for dual-core Cortex-M Musca board] + progress on M-profile floating point: - have written code to handle the smaller parts of the feature (insn decode, registers, etc) - started on changes to exception handling - lazy save/restore still to do after that * a lot of admin/meeting stuff this week * softfreeze now less than two weeks away, need to focus on what needs to be done before then... thanks -- PMM

6 years, 5 months

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[ACTIVITY] week ending March 1st 2019

by Peter Smith

[LLVM-494] LLD is now turned on for clang linux kernel defconfig builds [LLVM-542] Worked out how to get Zephyr (Linaro's choice of IoT embedded OS) compiling with clang. Looks like it is going to be difficult to get linking with clang/lld so I've used the gcc/ld.bfd for now. Linux kernel sent a draft patch to try and alleviate some object ordering problems that arise when linking the linux kernel with LTO. [Misc] Intel patch to add CET to LLD https://reviews.llvm.org/D58102 I mention this as this is related to BTI and CFI and .note.gnu.property sections. There has been some pushback to the use of .note.gnu.property sections, and in Intel's case their 2 level PLT scheme although it seems like as this has been mitigated by the presence of this option in gcc for some time. I have noticed that we tend to do design of a feature in one community (LLVM, GNU) and then attempt to win over the other one with leverage that the other community supports it. We may need to cast our early feedback net a bit wider to mitigate the chance that one of the communities blocks one of our features. There was an interesting RFC on a linker feature for improving code-size for mobile phones http://lists.llvm.org/pipermail/llvm-dev/2019-February/130583.html in essence an application is developed with loadable features implemented in DSOs loaded by dlopen. The entry points of the DSO are recorded, then all the input objects are given to the static linker which then performs LTO and creates stripped down DSOs that must be loaded at a specific offset from the application (shrinking them but losing the shared part of DSO).

6 years, 5 months

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[ACTIVITY] week ending Mar. 3 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= QEMU plugin support ([VIRT-280]) - posted {PATCH v3 0/3} softmmu demacro Message-Id: <20190215143115.28777-1-alex.bennee(a)linaro.org> - looks like there is still a bug on x86 TCG Message-Id: <20190219182528.GA19925@flamenco> - started v4 re-base, but realised we need better testing so - posted {PATCH v2 00/16} Enabling tcg/tests for cris and system mode xtensa & arm Message-Id: <c3a65d4b-8720-2957-1394-032823a78760(a)redhat.com> - started writing an i386 test case (x86 exercises more of the softmmu edge cases) - started reviewing v3 of plugin patches [VIRT-280] https://projects.linaro.org/browse/VIRT-280 Upstream Work ([VIRT-109]) ========================== - posted {PATCH v5} hw/block: better reporting on pflash backing file mismatch Message-Id: <20190227111347.15063-1-alex.bennee(a)linaro.org> - tested the possible ahci/migrate fix Message-Id: <20190227121052.GD2602@work-vm> for hang identified last week - posted {PULL 0/7} softfloat updates, mostly for s390x Message-Id: <20190226141201.16999-1-alex.bennee(a)linaro.org> - posted {PATCH v1 0/6} current state of gitdm/next Message-Id: <20190226164656.mhasc4xxfjf34hns@function> - and follow-up {PATCH v2 0/5} gitdm/next updates Message-Id: <20190301100310.22345-4-alex.bennee(a)linaro.org> - added some stats to VIRT-26/VIRT-326 for possible KPI use [VIRT-109] https://projects.linaro.org/browse/VIRT-109 Other ===== - more drafting of Connect talk Completed Reviews [1/1] ======================= {PATCH v2 00/11} pflash: Fixes and cleanups Message-Id: <20190226193408.23862-5-armbru(a)redhat.com> - CLOSING NOTE [2019-03-01 Fri 16:59] Looks like a good cleanup Absences ======== - Connect BKK19 (1-5th April 2019) - holiday after Connect Current Review Queue ==================== * {RFC v2 00/38} Plugin support Message-Id: <20181209193749.12277-1-cota(a)braap.org> * {Qemu-devel} {PATCH 00/23} tests/tcg/xtensa: conditionalize xtensa tests Message-Id: <20190219061111.10231-1-jcmvbkbc(a)gmail.com> * {PATCH 00/10} Rework debug exception handling code Message-Id: <20190301132809.24653-7-will.deacon(a)arm.com> * {PATCH v2 00/11} Enable build and install of our rST docs Message-Id: <20190228145624.24885-1-peter.maydell(a)linaro.org> * {PATCH+RFC 0/6} target/arm: Define cortex-a{73,75,76} Message-Id: <20190223023957.18865-1-richard.henderson(a)linaro.org> * {PATCH v3 00/20} Acceptance Tests: target architecture support Message-Id: <20190221005753.27955-1-crosa(a)redhat.com> -- Alex Bennée

6 years, 5 months

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[ACTIVITY] 25 February - 1 March 2019

by Diana Picus

== Progress == * [Thumb GlobalISel] Support global variables [LLVM-540] - Committed upstream * [Thumb GlobalISel] Support G_CTLZ [LLVM-543] - Committed upstream - We now have the same level of support for Thumb2 and ARM mode * LLVM 8.0.0 Release for ARM & AArch64 [LLVM-526] - Tested and uploaded rc3 == Plan == * Out of office between 4 - 8 March (i.e. next week) * GlobalISel bugfixing and cleanup (both ARM and Thumb2)

6 years, 5 months

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[ACTIVITY] 18-22 February 2019

by Kugan Vivekanandarajah

== Progress == * PR88836 - I have a patch (for backend and CSE) which now passes bootstrap and regression except for one testcase failure (which looks like a pattern issue). Looking into it. * Look at GDB BZ #21221 - gdb hangs while stepping an empty loop - Not convinced that it is a gcc issue. Looking into the dwarf specification. * PR88838 - Looking at it. - Also familiarising with auto-vectorisation of SVE == Plan == * Complete above PRs * Look at GDB BZ #21221 - gdb hangs while stepping an empty loop

6 years, 6 months

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[ACTIVITY] week ending 24 Feb 2019

by Richard Henderson

[VIRT-242 # ARMv8.3-JSCVT ] Merged to master. [VIRT-274 # ARMv8.2-FHM, Floating-point multiplication variant ] Posted v5. [VIRT-298 # ARMv8.4-CondM, Condition flag manipulation ] [VIRT-329 # ARMv8.5-CondM, Condition flag manipulation ] Started v4 and v5 extensions concurrently. Posted v1. [VIRT-337 # ARMv8.0-SB, Speculation Barrier ] Posted v1. [VIRT-338 # ARMv8.0-PredInv, Prediction Invalidation ] Posted v1. [VIRT-330 # ARMv8.5-FRINT, Floating-point to integer ] Posted v1. [VIRT-327 # Richard's upstream QEMU work ] Reviewed cpu-lock patch set. Ready to merge, I think. Fixed a bug with the env->hflags patch set wrt aa32. Looking at a reported TB chaining bug affecting HPPA. Started adding cortex-a{73,75,76}, but ran into issues. r~

6 years, 6 months

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[ACTIVITY] week ending Feb. 24 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= QEMU plugin support ([VIRT-280]) - posted {PATCH v3 0/3} softmmu demacro Message-Id: <20190215143115.28777-1-alex.bennee(a)linaro.org> - looks like there is still a bug on x86 TCG Message-Id: <20190219182528.GA19925@flamenco> - awaiting v3 of plugin patches :todo [VIRT-280] https://projects.linaro.org/browse/VIRT-280 Upstream Work ([VIRT-109]) ========================== - prepared {PATCH v1 0/8} testing/next Message-Id: <20190220172811.10588-1-alex.bennee(a)linaro.org> - spent time trying to replicate some CI failures - reproduced one, patched around {PATCH} tests/cdrom-test: only include isapc cdrom test when g_test_slow() Message-Id: <20190221134101.13903-1-alex.bennee(a)linaro.org> - finally reproduced (i386|x86_64)/ahci/migrate/sanity under gprof - handed over a core dump to migration people to fix - finally posted {PULL 0/9} various Travis and Docker fixes, add gitlab CI Message-Id: <20190222095421.28938-1-alex.bennee(a)linaro.org> - posted {PATCH v2} hw/block: report when pflash backing file isn't aligned Message-Id: <20190215122808.22301-1-alex.bennee(a)linaro.org> - further discussion has lead to further patches - also filled [Debian bug] - posted {PATCH v3} hw/block: better reporting on pflash backing file mismatch Message-Id: <20190221184857.22434-1-alex.bennee(a)linaro.org> - posted {PATCH v1 0/6} fpu/next, mostly bits s390x tcg will need Message-Id: <20190222204500.24434-1-alex.bennee(a)linaro.org> [VIRT-109] https://projects.linaro.org/browse/VIRT-109 [Debian bug] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922979 Other ===== - started drafting structure for Connect talk Completed Reviews [5/5] ======================= {PATCH 0/4} target/arm: Reduce overhead of cpu_get_tb_cpu_state Message-Id: <20190214040652.4811-1-richard.henderson(a)linaro.org> - CLOSING NOTE [2019-02-20 Wed 10:33] Found a bug with EL2 transitions {PATCH v2 0/3} target/arm: Reduce overhead of cpu_get_tb_cpu_state Message-Id: <20190219233421.388-1-richard.henderson(a)linaro.org> - CLOSING NOTE [2019-02-20 Wed 10:34] Looking good, nice performance boost. {PATCH 00/10} pflash: Fixes and cleanups Message-Id: <20190218125615.18970-1-armbru(a)redhat.com> - CLOSING NOTE [2019-02-22 Fri 15:24] Much needed de-weeding {Qemu-devel} {PATCH} hw/arm/armsse: Make 0x5... alias region work for per-CPU devices Message-Id: <20190215180500.6906-1-peter.maydell(a)linaro.org> - CLOSING NOTE [2019-02-22 Fri 15:29] Didn't manage to fully test through, building trusted firmware is hard {PATCH v3 0/3} target/arm: Reduce overhead of cpu_get_tb_cpu_state Message-Id: <20190222024106.9167-1-richard.henderson(a)linaro.org> - CLOSING NOTE [2019-02-22 Fri 15:26] Re-tested on armhf Absences ======== - Connect BKK19 (1-5th April 2019) - holiday after Connect Current Review Queue ==================== * {PATCH v3 00/20} Acceptance Tests: target architecture support Message-Id: <20190221005753.27955-1-crosa(a)redhat.com> * {RFC v2 00/38} Plugin support Message-Id: <20181209193749.12277-1-cota(a)braap.org> * {PATCH v5 00/26} KVM: arm64: SVE guest support Message-Id: <1550519559-15915-1-git-send-email-Dave.Martin(a)arm.com> * {Qemu-devel} {PATCH v6 00/51} Support Kconfig in QEMU Message-Id: <1549562254-41157-1-git-send-email-pbonzini(a)redhat.com> * {PATCH 0/6} Initial support for CVADP Message-Id: <1549459868-45992-1-git-send-email-andrew.murray(a)arm.com> * {Qemu-devel} {PATCH v6 00/49} linux-user: Split do_syscall Message-Id: <20190118213122.22865-1-richard.henderson(a)linaro.org> -- Alex Bennée

6 years, 6 months

1
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[ACTIVITY] Week ending Friday 22nd February 2019

by Peter Smith

[LLVM-158] Monitor and maintain buildbots - Some work to track down a faulty msan test on AArch64 that was intermittently failing. - Spent some time trying to reproduce an intermittent failure in libfuzzer. [LLVM-523] Synthesise EXIDX_CANTUNWIND entries for sections without tables. - Not getting much response from upstream beyond a vague suggestion to rewrite the whole of .ARM.exidx handling as a single custom section. I may have to go down this path to get the feature accepted, even if it is to show that it is a bad idea. [LLVM-496] LLD in linux kernel - Submitted patch to ignore -p (--no-pipeline-knowledge) which is used by the AArch32 linux kernel. - Submitted patch to integrate LLD in TCWG kernel regression test. - Learned, the hard way, about how the linux kernel build system works and how to pass extra flags. Reviews: Spent an awful long time looking at how clang passes options to GNU as to try and match the existing clang defaults. I'm not sure I've seen anything much more confusing than tracing through target features from clang to llvm and back again.

6 years, 6 months

1
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todo fdpic stm32

by Christophe Lyon

re-essayer de flash le kernel sur la board (mais est-ce possible vu qu'il semble plus gros que la flash?) $ openocd -f /usr/share/openocd/scripts/board/stm32f429discovery.cfg -f flash-kernel.cfg [...] Info : device id = 0x20016419 Info : flash size = 2048kbytes Info : Dual Bank 2048 kiB STM32F42x/43x/469/479 found Warn : no flash bank found for address 0 wrote 0 bytes from file /home/lyon/src/kernel/linux/arch/arm/boot/xipImage in 0.007352s (0.000 KiB/s) ** Programming Finished ** demander de l'aide aux gens de ST? re-essayer avec un openocd plus recent

6 years, 6 months

1
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[ACTIVITY] 18-22 February 2019

by Christophe Lyon

== Progress == * FDPIC - (GNU-411) GDB: debugging problems with FDPIC support. Trying to setup a stm32 board to avoid problems with unsupported configurations mix between kernel and qemu. * GCC upstream validation: - reported a few regressions * GCC: - (GNU-99) ubsan / bare-metal. No progress. * misc (conf-calls, meetings, emails, ....) - reviewing infra script patches - debugging new benchmarking round-robin jobs == Next == Holidays, back on March 4th == Next-next == FDPIC: - GCC: handle feedback on v4 patches - GDB: update patches - uclibc-ng: look at how to test fdpic mode with openadk - complete board setup Infra: - benchmarking jobs

6 years, 6 months

1
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[ACTIVITY] report week ending 22 Feb

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] + patch review: RTH's JSConv/FHM patchset + sent another arm pull request * VIRT-268 [QEMU support for dual-core Cortex-M Musca board] + Implemented and wired up the SSE-200 Message Handling Units + Implemented the mechanism by which a guest can power up CPU 1 + Sent out patches for these; this can run the Zephyr MHU/dualcore testcase + Started looking at implementing floating point support for M profile thanks -- PMM

6 years, 6 months

1
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[ACTIVITY] 18 - 22 February 2019

by Diana Picus

== Progress == * [Thumb GlobalISel] Support control flow [LLVM-530] - Committed upstream * [Thumb GlobalISel] Support accessing the stack [LLVM-527] - Committed upstream * [Thumb GlobalISel] Support floating point [LLVM-531] - Committed upstream * LLVM 8.0.0 Release for ARM & AArch64 [LLVM-526] - Investigated the release blocker from rc1, turned out to be an issue with the filesystem used in the container on the APMs - Changed the release job to run on the D05 instead, where we use a different container [LLVM-539] - Testing still in progress == Plan == * [Thumb GlobalISel] Support global variables [LLVM-540] * Out of office between 4 - 8 March

6 years, 6 months

1
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[ACTIVITY] 11-15 February 2019

by Kugan Vivekanandarajah

== Progress == * PR88834: * Have a patch for ivopt and backend that generates the required addressing mode and code. Still need cleanup and some improvements. * PR88836 Made the required changes to the backend. CSE is still not happening. Looked at CSE in detail and made few changes but still need more work. The issues are: - Parallel rtx with one setting a register and other using it will be immediately invalidated as the invalidation happens after processing both. - If CSE is such that one instruction is with one constant operand and other with constant in a register, it will not be detected - VEC_DUPLICATE is not handled. - Not sure any other pass like GCSE is a better option == Plan == * Complete above PRs * Look at GDB BZ #21221 - gdb hangs while stepping an empty loop

6 years, 6 months

1
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[ACTIVITY] week ending 17 Feb 2019

by Richard Henderson

[VIRT-68 # QEMU should implement tagged pointer support ] Closed. We merged these patches on Feb 5. [VIRT-242 # ARMv8.3-JSCVT ] Sent v4. [VIRT-274 # ARMv8.2-FHM, Floating-point multiplication variant ] Sent v2. [VIRT-344 # ARMv8.5-MemTag, Memory Tagging Extension ] Sent v3 vs 00eac6. [VIRT-327 # Richard's upstream QEMU work ] Reviewed s390 floating point extension feature. Fixed AT_PLATFORM for arm-linux-user and aarch64_be-linux-user. Implemented missing float_round_to_odd functionality. r~

6 years, 6 months

1
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[ACTIVITY] week ending Feb. 17 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= [VIRT-280] https://projects.linaro.org/browse/VIRT-280 QEMU plugin support ([VIRT-280]) - posted {PATCH v3 0/3} softmmu demacro Message-Id: <20190215143115.28777-1-alex.bennee(a)linaro.org> - awaiting v3 of plugin patches :todo Upstream Work ([VIRT-109]) ========================== - posted {PULL 00/18} testing updates: travis/cirrus/vm-test/binfmt Message-Id: <20190211130507.8710-1-alex.bennee(a)linaro.org> - posted {PATCH v2 0/6} HWCAP_CPUID registers for aarch64 Message-Id: <20190205190224.2198-1-alex.bennee(a)linaro.org> - fixes pulled into target-arm.next - test case held back due to compiler version needed, need to respin - posted {PATCH v2} hw/block: report when pflash backing file isn't aligned Message-Id: <20190215122808.22301-1-alex.bennee(a)linaro.org> - prompted further discussion on best solution as -pflash fails in ways -bios doesn't [VIRT-109] https://projects.linaro.org/browse/VIRT-109 Other ===== - Spent time building cross-tools for Debian/ARM64 - sent {PATCH} binutils: enable s390x/ppc64el on arm64 hosts Message-Id: <20190212140851.22478-1-alex.bennee(a)linaro.org> - Discussion on [Debian #921458] (buster apt source qemu) - upstream consensus seems to be it is acceptable - apt-get build-dep --arch-only qemu [Debian #921458] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=921458 Completed Reviews [1/1] ======================= {RFC} arm: Allow system registers for KVM guests to be changed by QEMU code Message-Id: <20181206151401.13455-1-peter.maydell(a)linaro.org> - CLOSING NOTE [2019-02-13 Wed 16:30] Looks fine, although we still need to keep squashing single-step while debug is on Absences ======== - 15-18th Feb (long w/e) - Connect BKK19 (1-5th April 2019) - holiday after Connect Current Review Queue ==================== * {PATCH 0/4} target/arm: Reduce overhead of cpu_get_tb_cpu_state Message-Id: <20190214040652.4811-1-richard.henderson(a)linaro.org> * {RFC v2 00/38} Plugin support Message-Id: <20181209193749.12277-1-cota(a)braap.org> * {Qemu-devel} {PATCH v6 00/49} linux-user: Split do_syscall Message-Id: <20190118213122.22865-1-richard.henderson(a)linaro.org> * {PATCH 0/5} target/mips: Add MSA ASE tests Message-Id: <1550001205-7883-1-git-send-email-aleksandar.markovic(a)rt-rk.com> * {Qemu-arm} {PATCH 00/25} Kconfig dependencies for ARM machines Message-Id: <1549694366-1284-1-git-send-email-thuth(a)redhat.com> * {RFC QEMU v2 0/2} arm/virt: Account for guest pause time Message-Id: <1543352837-21529-1-git-send-email-bijan.mottahedeh(a)oracle.com> -- Alex Bennée

6 years, 6 months

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[ACTIVITY] 11-15 February 2019

by Christophe Lyon

== Progress == * FDPIC - (GNU-411) GDB: debugging problems with FDPIC support. * GCC upstream validation: - reported a few regressions * GCC: - (GNU-99) ubsan / bare-metal. No progress. * misc (conf-calls, meetings, emails, ....) - reviewing infra script patches - debugging new benchmarking round-robin jobs == Next == FDPIC: - GCC: handle feedback on v4 patches - GDB: update patches - uclibc-ng: look at how to test fdpic mode with openadk Infra: - benchmarking jobs

6 years, 6 months

1
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[ACTIVITY] report week ending 15 Feb

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] + usual code review/maintainer work + Coverity Scan is back up; triaged the issues that it found + updated OSX "handle Mojave" patchset to actually wire up events correctly; sent v2 * VIRT-268 [QEMU support for dual-core Cortex-M Musca board] + Finished, tested and sent out the initial Musca board model patches for review + Fixed a handful of random bugs identified in the course of doing this and testing it with various guests + Investigated why tip-of-trunk ARM-TFM stopped working on the mps2-an521 model; turned out to be a QEMU bug which I have sent out a patch for thanks -- PMM

6 years, 6 months

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[ACTIVITY] 11 - 15 February 2019

by Diana Picus

== Progress == * [Thumb GlobalISel] Support G_SELECT [LLVM-529] - Committed upstream * [Thumb GlobalISel] Support control flow [LLVM-530] - Committed support for branches - Support for PHI in progress * LLVM 8.0.0 Release for ARM & AArch64 [LLVM-526] - rc2 uploaded, no changes from rc1 on our side * Use new version of GCC on buildbots [LLVM-515] - Restarted the buildbots, they are running GCC 7 now * Buildbot babysitting [LLVM-158] - Reproduced a couple of failures, ran a pre-commit for one of them == Plan == * Continue LLVM-526 and LLVM-530

6 years, 6 months

1
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[ACTIVITY] 11 February - 15 February 2019

by Prathamesh Kulkarni

== This Week == * SVE ACLE (4/10) - Committed svlsl patch to branch * SVE (3/10) - Studying GCC's vectorizer - Started looking at PR88839 * Validation (2/10) - GNU-156: Working on tcwg_gnu CI job. * Misc (1/10) - Meetings - Filed PR89332 in GCC bugzilla. == Next Week == - Continue ongoing tasks

6 years, 6 months

1
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[ACTIVITY] Week 06

by Yvan Roux

o Still part time at university. o LLVM * Still working on machine outliner RFC comments. o Misc * Various meetings and discussions.

6 years, 6 months

1
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[ACTIVITY] week ending 10 Feb 2019

by Richard Henderson

[VIRT-242 # ARMv8.3-JSCVT ] Posted v1 & v2. [VIRT-339 # ARMv8.5-BTI, Branch Target Identification ] Posted v3. [VIRT-327 # Richard's upstream QEMU work ] Posted v3 of arm tcg vector improvements. Now uses ssadd & usadd tcg opcodes from AdvSIMD and not just SVE. This would have made it easier to find a bug in my previous tcg backend patches. Found the last two bugs in a conversion of target/hppa to decodetree, and posted the patch set. Sent pull request for some other queued hppa patches. Fix a minor RISU bug wrt SVE. [LoAAS] Travel to/from Cambridge for 2 days of Linux on ARM Summit. r~

6 years, 6 months

1
1
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[ACTIVITY] 4-8 February 2019

by Christophe Lyon

== Progress == * FDPIC - (GNU-411) GDB: debugging problems with FDPIC support. * GCC upstream validation: - reported a few regressions, helping test patches - dealing with some random results, still * GCC: - (GNU-99) rebased ubsan / bare-metal patches. No progress. * misc (conf-calls, meetings, emails, ....) - reviewing/submitted infra script patches - debugging new benchmarking round-robin jobs == Next == FDPIC: - GCC: handle feedback on v4 patches - GDB: update patches - uclibc-ng: look at how to test fdpic mode with openadk Infra: - benchmarking jobs

6 years, 6 months

1
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[ACTIVITY] week ending Feb. 10 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= QEMU plugin support ([VIRT-280]) - re-based [ldst demacro to v3] - recollect stats to see if slowdown still there :todo - awaiting v3 of plugin patches [VIRT-280] https://projects.linaro.org/browse/VIRT-280 [ldst demacro to v3] https://github.com/stsquad/qemu/tree/ldst/demacrofy-v3 Upstream Work ([VIRT-109]) ========================== - need to finish the re-work of [system test and misc arch] tests :todo - will be useful for test cases for plugins - also more test cases queued up for system tests - debugged an occasional failure in pauth-1 test case - expected given PAuth architecture, test needs tightening up - posted {PATCH v1 0/4} HWCAP_CPUID registers for aarch64 Message-Id: <20190128173940.25813-1-alex.bennee(a)linaro.org> - posted {PATCH v2 0/6} HWCAP_CPUID registers for aarch64 Message-Id: <20190205190224.2198-1-alex.bennee(a)linaro.org> - posted {PATCH v2 00/16} current testing/next queue (with build fixes) Message-Id: <20190207183744.5054-1-alex.bennee(a)linaro.org> - this fixes regression of check-tcg but also - discovered the Debian Buster's QEMU arm64 packaging is broken - spent time trying to able to join #debian's IRC channels (aws hosts banned!) - tried to revive the cross-tools packaging I'd started with Wookey last Connect [VIRT-109] https://projects.linaro.org/browse/VIRT-109 [the linux-user multiarch but it is not ready yet] https://github.com/stsquad/qemu/tree/testing/next-with-linux-user [system test and misc arch] https://github.com/stsquad/qemu/tree/testing/enable-system-tcg-tests-v2 Other ===== - Connect talk has been accepted, Friday 8.30 slot Completed Reviews [1/1] ======================= {Qemu-arm} {PATCH v6 00/73} per-CPU locks Message-Id: <20190130004811.27372-1-cota(a)braap.org> - CLOSING NOTE [2019-02-08 Fri 17:19] Looks good, improves MTTCG scalability to 10-12 core now ;-) Absences ======== - 15-18th Feb (long w/e) - Connect BKK19 (1-5th April 2019) - holiday after Connect Current Review Queue ==================== * {RFC} arm: Allow system registers for KVM guests to be changed by QEMU code Message-Id: <20181206151401.13455-1-peter.maydell(a)linaro.org> * {RFC v2 00/38} Plugin support Message-Id: <20181209193749.12277-1-cota(a)braap.org> * {RFC QEMU v2 0/2} arm/virt: Account for guest pause time Message-Id: <1543352837-21529-1-git-send-email-bijan.mottahedeh(a)oracle.com> * {PATCH v12 00/25} Fixing record/replay and adding reverse debugging Message-Id: <154935478086.7509.4349987292919289245.stgit@pasha-VirtualBox> * {PATCH v2 00/18} OpenBSD: Enable qtesting Message-Id: <20190129175403.18017-1-philmd(a)redhat.com> * {PATCH v11 00/25} Fixing record/replay and adding reverse debugging Message-Id: <20190131131520.23264.75724.stgit@pasha-VirtualBox> -- Alex Bennée

6 years, 6 months

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[ACTIVITY] report week ending 8 Feb

by Peter Smith

Fosdem: - Presented on LLD performance at LLVM devroom https://fosdem.org/2019/schedule/track/llvm/ - Other interesting presentations from the devroom include: -- Compiling the Linux kernel with LLVM tools -- Lessons in TableGen LLVM-523 LLD should synthesise .cantunwind .ARM.exidx sections for sections without them - Implementation and regression tests done. Will do a bit more testing and post upstream on Monday. LLVM-521 Taking the address of an ifunc in LLD - Spent some time reviewing upstream patch that should fix the remaining LLD ifunc address equivalence problems for all Targets.

6 years, 6 months

1
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[ACTIVITY] report week ending 8 Feb

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] + reviewed RTH's patchsets for BTI and MemTag support * VIRT-268 [QEMU support for dual-core Cortex-M Musca board] + Implemented a first pass at a Musca board model, which has the PPC and MPC infrastructure, plus RAM, and ROM for the flash; need to add at least the UARTs and do some testing * misc + sorting out travel arrangements, visa, etc for Connect + kicked off a discussion on whether there are aspects of QEMU's role as the userspace component of a KVM VM that Linaro should be putting more effort/attention into thanks -- PMM

6 years, 6 months

1
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[ACTIVITY] 4 - 8 February 2019

by Diana Picus

== Progress == * Out of office on Monday * [Thumb GlobalISel] Support G_GEP [LLVM-532] - Committed upstream * [Thumb GlobalISel] Support G_ICMP [LLVM-528] - Committed upstream * [Thumb GlobalISel] Support G_SELECT [LLVM-529] - Almost ready to commit * LLVM 8.0.0 Release for ARM & AArch64 [LLVM-526] - rc2 in progress * Minor changes to Jenkins jobs [LLVM-533] - TCWG Regression Detection job: launch LLVM 7.0.0 release on xenial containers (as opposed to 6.0.0 on trusty) - Release job: forced parallelism to 3 on the TK1s, to reduce some of the swapping; also posted a patch upstream to allow us to use ninja, so we can limit only the number of link jobs (like we do on the buildbots) == Plan == * Continue LLVM-526 and LLVM-529 * Use new version of GCC on buildbots [LLVM-515] - Restart the buildbots so they begin using GCC 7

6 years, 6 months

1
0
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[ACTIVITY] 4 February - 8 February 2019

by Prathamesh Kulkarni

== This Week == * SVE ACLE (4/10) - svlsl * Getting familiar with GCC's vectorizer (4/10) * Validation (1/10) - Upstream monitoring job * Misc (1/10) - Meetings == Next Week == - Continue ongoing tasks

6 years, 6 months

1
0
0 0

[BUG REPORT] The bare-metal toolchains for aarch64 cannot link objects successfully

by Junling Zheng

Hi, I found that the bare-metal toolchains for aarch64 from Linaro could not seem to link objects to generate executable files successfully. ==================== Toolchain: https://releases.linaro.org/components/toolchain/binaries/7.3-2018.05/aarch… ==================== Testcase: > cat test.c #include <stdio.h> int main(int argc, char* argv[]) { printf("Hello World!\n"); return 0; } > aarch64-elf-gcc -o test test.c .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/crt0.o: In function `_start': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/libgloss/aarch64/crt0.S:148: undefined reference to `initialise_monitor_handles' .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-exit.o): In function `exit': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/stdlib/exit.c:70: undefined reference to `_exit' .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-sbrkr.o): In function `_sbrk_r': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/sbrkr.c:58: undefined reference to `_sbrk' .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-writer.o): In function `_write_r': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/writer.c:58: undefined reference to `_write' .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-closer.o): In function `_close_r': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/closer.c:53: undefined reference to `_close' .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-lseekr.o): In function `_lseek_r': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/lseekr.c:58: undefined reference to `_lseek' .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-readr.o): In function `_read_r': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/readr.c:58: undefined reference to `_read' .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-fstatr.o): In function `_fstat_r': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/fstatr.c:62: undefined reference to `_fstat' .../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-isattyr.o): In function `_isatty_r': /home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/isattyr.c:58: undefined reference to `_isatty' collect2: error: ld returned 1 exit status In addition, there was the same bug in 7.4.1-2019.02 version, but not in arm-eabi or armeb-eabi. Is there anyone fixing this? Thanks, Junling

6 years, 6 months

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[ACTIVITY] 28 January 2019 - February 1 2019

by Prathamesh Kulkarni

== This Week == * SVE ACLE (6/10) - svlsl * Validation (2/10) - Upstream monitoring job based on round-robin - LLVM Buildbot babysitting * PR88839: Poor implementation of blend like permutes (1/10) * Misc (1/10) - Meetings == Next Week == - Continue ongoing tasks

6 years, 6 months

1
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[ACTIVITY] Week 05

by Yvan Roux

o Still part time at university. o LLVM * Working on machine outliner RFC comments. o Misc * Various meetings and discussions.

6 years, 6 months

1
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[ACTIVITY] 28 January-1 February 2019

by Kugan Vivekanandarajah

== Progress == * Short week - Annual Leave 2 days - Public Holiday 1 day (Australia day) *SVE ACLE - Revised remaining ACLE patches - svbic revised and reviewed * Auto Vectorizer - Looking at auto vectorisation SVE == Plan == * SVE ACLE * Look at PR88834

6 years, 6 months

1
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[ACTIVITY] week ending 3 Feb 2019

by Richard Henderson

[VIRT-294 # ARMv8.3-PAuth, Pointer Authentication ] Fixed HCR/SCR enablement of API/APK. Posted v2 of the prctl. [VIRT-339 # ARMv8.5-BTI, Branch Target Identification ] Posted v2. [VIRT-327 # Richard's upstream QEMU work ] Implemented variable-length decoding in scripts/decodetree.py. Lots of fiddling about with the RX ISA to understand what was actually needed within decodetree. Pull request for vector extensions and dynamic tlb sizing. Finished MPS review. r~

6 years, 6 months

1
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