- linaro-toolchain - lists.linaro.org

[ACTIVITY] Week 15

by Yvan Roux

o Short post-connect week with EuroLLVM o LLVM * Bots babysitting.

6 years, 9 months

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[ACTIVITY] report week ending 12 Apr

by Peter Maydell

(Previous week was Connect.) Progress: (short week, 3 days) * VIRT-65 [QEMU upstream maintainership] + QEMU release work: flurry of last minute stuff for rc3. I hoped we would not need an rc4, but as usual a release-critical issue was found, so we will be having one. + code review thanks -- PMM

6 years, 10 months

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[ACTIVITY] 8-12 April 2019

by Christophe Lyon

== Progress == * FDPIC - Experimenting with stm32f469-disco. It seems recent gdbserver is now too large to load (issues when trying to map libstdc++.so while attempting to load a simple hello.c) * GCC upstream validation: - little activity this week, close to e/o stage 4 * GCC - ubsan on bare-metal toolchain: experimenting with multlibs * Infra - improved reporting of some jobs, improved error handling == Next == More of the on-going tasks

6 years, 10 months

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[ACTIVITY] Report: end of week 15: 12th of April

by Beata Michalska

Progress: - Rather short one: Slowly getting up to speed with internal setup: accounts, accesses, communication channels, mailing lists etc. BR BM

6 years, 10 months

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[ACTIVITY] 8 April 2019 - 12 April 2019

by Prathamesh Kulkarni

== This Week == * PR88837 (9/10) - Addressing patch reviews from Richard. * Misc (1/10) - Committed patch to add support for bootstrap-lto-lean config to jenkins-scripts. - Meetings == Next Week == - Continue ongoing tasks

6 years, 10 months

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[ACTIVITY] 8 - 12 April 2019

by Diana Picus

== Progress == * LLVM 7.1.0 Release for ARM & AArch64 [LLVM-546] - Final candidate build in progress * [GlobalISel] Map and select G_FCONSTANT [LLVM-552] - Committed upstream * [GlobalISel] Better support for small types [LLVM-553] - In progress == Plan == * LLVM-546, LLVM-553

6 years, 10 months

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[ACTIVITY] Week ending Thursday 11th April 2019

by Peter Smith

[Conferences] Linaro connect and EuroLLVM. Please see trip reports already posted. A bit of a gruelling week of Travel going from Bangkok straight to Brussels, with just a short half a day in between at home in Cambridge. [Activity] - A number of reviews whilst away - Started looking at how to build an embedded toolchain with Linaro's ABE and work out how to fit it into their infrastructure. Planned Absences Holiday 12- 16th, back on Wednesday.

6 years, 10 months

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[ACTIVITY] 1-5 April 2019

by Christophe Lyon

== Progress == * FDPIC - Experimenting with stm32f469-disco * GCC upstream validation: - reported a few regressions * GCC - ubsan on bare-metal toolchain: enabling more multilibs triggered an assert in the linker. * Infra - improved reporting of some 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 update

6 years, 10 months

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[ACTIVITY] 1 - 5 April 2019

by Diana Picus

== Progress == * LLVM 7.1.0 Release for ARM & AArch64 [LLVM-546] - Uploaded RC1 for both ARM & AArch64 * [GlobalISel] Support debug info [LLVM-549] - Added support for DBG_VALUE, seems to be enough for now * [GlobalISel] Map and select G_FCONSTANT [LLVM-552] - In progress * IR SVE Reviews [LLVM-545] - More reading, discussions etc == Plan == * More of the same

6 years, 10 months

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[ANNOUNCE] Arm Binary A-profile Toolchain Release GCC 8.3-2019.03

by Przemyslaw Wirkus

The Arm GNU Toolchain for the A-profile Architecture ===================================================== The Arm GNU Toolchain for the A-profile Architecture 8.3-2019.03 Release is now available. Arm is pleased to announce the Arm-built release of the pre-built GNU cross-toolchain for the A-profile cores: GCC 8.2-2019.03. This is the same toolchain that was previously built and distributed by Linaro. For the official initial announcement, see: https://community.arm.com/tools/b/blog/posts/pre-built-gnu8-cross-toolchain… For more information about the GNU Arm toolchain and to download the release packages, see the Arm Developer website at: https://developer.arm.com/tools-and-software/open-source-software/developer… For an explanation of FSF GCC 8 series changes see: https://gcc.gnu.org/gcc-8/changes.html For help in porting to GCC 8 see the following explanation: https://gcc.gnu.org/gcc-8/porting_to.html Download the release packages from: (sources) https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads (binaries) https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads Previous snapshots and release-candidates for GCC 7 and earlier are at: (sources) https://releases.linaro.org/components/toolchain/gcc-linaro/ (binaries) http://snapshots.linaro.org/components/toolchain/binaries/ Previous releases of GCC 7 and earlier are available at: http://releases.linaro.org/components/toolchain/binaries/ A description of the Arm and AArch64 target triples can be found at: https://collaborate.linaro.org/display/TCWGPUB/ARM+and+AArch64+Target+Tripl… Host Requirements ================== * Ubuntu 14.04 LTS x86_64 or later, or RHEL 6.9 x86_64: * x86_64 hosted cross compiler for AArch64 ELF bare-metal target (x86_64-aarch64-elf). * x86_64 hosted cross compiler for AArch64 ELF bare-metal, big-endian target (x86_64-aarch64_be-elf). * x86_64 hosted cross compiler for AArch64 GNU/Linux target (x86_64-aarch64-linux-gnu). * x86_64 hosted cross compiler for AArch64 GNU/Linux big-endian target (x86_64-aarch64_be-linux-gnu). * x86_64 hosted cross compiler for AArch32 bare-metal target (x86_64-arm-eabi). * x86_64 hosted cross compiler for AArch32 target with soft float (x86_64-arm-linux-gnueabi). * x86_64 hosted cross compiler for AArch32 target with hard float (x86_64-arm-linux-gnueabihf). * Windows 7 or later, for 32 and 64 bit OS: * i686-mingw32 hosted cross compiler for AArch32 bare-metal target (i686-mingw32-arm-eabi). * i686-mingw32 hosted cross compiler for AArch64 ELF bare-metal target (i686-mingw32-aarch64-elf). Package Versions ================= GCC 8.3 https://gcc.gnu.org/gcc-8/changes.html FSF glibc 2.28 http://lists.gnu.org/archive/html/info-gnu/2018-08/msg00000.html Newlib 3.1.0 https://sourceware.org/ml/newlib/2018/msg00019.html GNU Binutils 2.32 https://lists.gnu.org/archive/html/info-gnu/2019-02/msg00000.html FSF GDB 8.2.1 https://www.gnu.org/software/gdb/download/ANNOUNCEMENT libexpat 2.2.5 https://github.com/libexpat/libexpat/blob/R_2_2_5/expat/Changes Linux Kernel v4.19 https://lkml.org/lkml/2018/10/22/184 libgmp 4.3.2 libisl 0.15 libmpfr 3.1.6 libmpc 0.8.2 libiconv 1.15 Sources provided in release source tar ball. News for GCC 8 (as of GCC 8.2-2019.01) ======================================= * Fix for "gcc-arm-8 releases contain .la files.". https://bugs.linaro.org/show_bug.cgi?id=4249 * Fix for "gcc-arm-8 mingw32 releases contain symlinks". https://bugs.linaro.org/show_bug.cgi?id=4251 * Fix for "gcc-arm-8.2-2019.01 release uses gdb-8.1 instead of gdb-8.2". https://bugs.linaro.org/show_bug.cgi?id=4253 * Fix for "ARM Toolchain use a Linux kernel headers -rc release" https://bugs.linaro.org/show_bug.cgi?id=4297 * Each binary release file now contains manifest.txt file with configuration flags for each toolchain component. * Additional Linaro ABE manifest files to build x86_64 host toolchains. * Experimental multilib support for arm-eabi toolchain (multilib a+rm-profile with newlib-nano enabled). For more details about Spectre V1 mitigation in GCC visit: https://lwn.net/Articles/759423/ Contact Arm ============ For any questions, please use the Arm Communities forums at: https://community.arm.com/tools/ Please report any bugs via the Linaro Bugzilla at: https://bugs.linaro.org/

6 years, 10 months

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[ACTIVITY] week ending 31 Mar 2019

by Richard Henderson

[VIRT-263 # ARMv8.1-VHE Virtual Host Extensions ] More progress, but still crashing early. Crashes on first memory access after swapping ttbr1. Debugging kernel on guest and qemu on host simultaneously. So far, all the numbers look right but still boom. [VIRT-339 # ARMv8.5-BTI, Branch Target Identification ] Posted a v4 using the PT_NOTE, but still RFC-ish due to missing abi for new mmap flag. [VIRT-327 # Richard's upstream QEMU work ] Posted v1+v2 of CPUNegativeOffsetState. Posted v1 of a cleanup of target/riscv wrt decodetree. [Other] Upgraded the laptop from fedora 27 (out of support now), to ubuntu 18.04 lts. r~

6 years, 10 months

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[ACTIVITY] Week ending Friday 29th March 2019

by Peter Smith

[Activity] [LLVM-542] Compiling zephyr with clang - Prepared for presentation/discussion with colleagues at Connect next week. - Made the installation process a bit more repeatable - Added support for -Oz [Intel-CET] patches to LLD (similar to BTI) - Code-owner has redesigned the patches and they look a lot better and more likely to go in. Shouldn't be too difficult to build BTI on top of. [LLVM-523] .ARM.exidx redesign - Now committed, and has stuck for at least a day without needing to be reverted. Linaro Connect - Preparations for hack room - Gave dry run of presentation for Doughnuts. Will need to cut out some material to get through in time. Next week: At Linaro Connect Then at EuroLLVM Then most likely on holiday for remainder of that week.

6 years, 10 months

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[ACTIVITY] 25-29 March 2019

by Christophe Lyon

== Progress == * FDPIC - Discovered that my stm32f429-disc1 board is not suitable for recent Linux kernels (too large). Will experiment with stm32f469-disco * GCC upstream validation: - reported a few regressions * misc (conf-calls, meetings, emails, ....) - reviewed infra script patches - fixed small issues after adding QEMU as a toolchain component in ABE - added jobs to monitor Jenkins slaves - fixed issues in benchmarking scripts == 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, 10 months

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[ACTIVITY] 25 - 29 March 2019

by Diana Picus

== Progress == * LLVM 7.1.0 Release for ARM & AArch64 [LLVM-546] - Fixed our infra scripts to work for 7.1.0 (looks like it's the first ever minor release since the new numbering scheme was introduced) - AArch64 is ready and green, ARM still in progress * [Thumb GlobalISel] Bugfixes [LLVM-544] - Committed the patch for alignment issues and 2 other patches for 1-bit value handling - Selfhosted clang now passes check-all * IR SVE Reviews [LLVM-545] - More reading, installed armie etc == Plan == * More of the same

6 years, 10 months

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Cross compiling QEMU for aarch64

by Rohit Khanna

Hi, I am trying to cross-compile QEMU for aarch64 target using the below toolchain http://releases.linaro.org/components/toolchain/binaries/4.9-2016.02/aarch6… ../configure --target-list=aarch64-softmmu --enable-kvm --enable-vhost-net --cross-prefix=~/Downloads/gcc-linaro-4.9-2016.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu- ERROR: pkg-config binary '/home/rokhanna/Downloads/gcc-linaro-4.9-2016.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-pkg-config' not found QEMU - https://github.com/qemu/qemu Any pointers on where I can find pkg-config? Thanks in advance. Thanks Rohit ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. -----------------------------------------------------------------------------------

6 years, 10 months

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Re: Cross compiling QEMU for aarch64

by Rohit Khanna

Thanks Wookey and Richard. I was able to resolve the pkg-config issue after installing it with - apt install pkg-config-aarch64-linux-gnu I modified my configure command to below - ./configure --target-list=aarch64-softmmu --enable-kvm --enable-vhost-net --cross-prefix=aarch64-linux-gnu- Now I am running into dependency issue on glib-2.4 and gthread-2.0. rokhanna@rokhanna-dev ~/dev/qemu.git $ ./configure --target-list=aarch64-softmmu --enable-kvm --enable-vhost-net --cross-prefix=aarch64-linux-gnu- ERROR: glib-2.40 gthread-2.0 is required to compile QEMU Thanks Rohit ________________________________ From: Richard Henderson <richard.henderson(a)linaro.org> Sent: Thursday, March 21, 2019 9:31 PM To: Rohit Khanna; linaro-toolchain(a)lists.linaro.org Cc: Santosh Shukla Subject: Re: Cross compiling QEMU for aarch64 On 3/21/19 4:45 PM, Rohit Khanna wrote: > Hi, > > I am trying to cross-compile QEMU for aarch64 target using the below toolchain http://releases.linaro.org/components/toolchain/binaries/4.9-2016.02/aarch6… > > > ../configure --target-list=aarch64-softmmu --enable-kvm --enable-vhost-net --cross-prefix=~/Downloads/gcc-linaro-4.9-2016.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu- > > ERROR: pkg-config binary '/home/rokhanna/Downloads/gcc-linaro-4.9-2016.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-pkg-config' not found First, "--cross-prefix=aarch64-linux-gnu-". It is a prefix, not a path. You should have "$HOME/Downloads/gcc-linaro-4.9-2016.02-x86_64_aarch64-linux-gnu/bin" in your path in order to use that compiler. Second, pkg-config is not part of a toolchain, but part of an entire OS distribution. If your host is debian or ubuntu, they ship a version configured for aarch64 cross-compilation. Which is helpful because... Third, you're going to need a *lot* of aarch64 libraries in order to build QEMU. This is where OS support for cross-toolchains is key. r~ ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. -----------------------------------------------------------------------------------

6 years, 10 months

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[ACTIVITY] report week ending 28 Mar

by Peter Maydell

Progress: (short week, 3 days) * VIRT-65 [QEMU upstream maintainership] + reviewed a few patchsets that had been lurking in my queue too long + trawled through the QEMU bug system for bugs we'd already fixed and forgotten to close, bugs which need more info from the submitter, and bugs which were very easy to fix + various other release related work * Preparation for Connect next week thanks -- PMM

6 years, 10 months

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[ACTIVITY] Week ending 23rd March 2019

by Peter Smith

Linaro connect preparation: - Finished Linaro Connect presentation on cross compilation with clang -- Hoping to do a dry-run at Doughnuts this week assuming we can resolve a potential clash with the IPG hands-on. - Draft agenda for the hack-room produced. [LLVM-523] ARM.exidx redesign - Got approval, committed and then reverted my exceptions redesign due some build-bot failures. Found another potential problem with --emit-relocs that may be a bit more difficult to fix. [BTI] Continuing to review and make suggestions for Intel CET patch (pre-requisite for BTI due to common use of .note.gnu.property sections) Some more communication with Linux Kernel port to Arm with respect to assembler problems.

6 years, 10 months

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[ACTIVITY] Week 12

by Yvan Roux

o LLVM * Machine outliner: - Debugging issue in LLVM bootstrap. - Preparing BKK19 Hacking session presentation. o Misc * Various meetings and discussions.

6 years, 10 months

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[ACTIVITY] 18 March - 22 March 2019

by Prathamesh Kulkarni

== This Week == * PR88837 (2/10) - Started investigating the bug * Validation (2/10) - tcwg_gnu: Merged into master and added profiledbootstrap. - ABE cleanup patch to remove --enable bootstrap option * TCWG-1508 (1/10) - Investigated merge failure, Uros's suggested patch fixes the issue. * Public Holidays (4/10) * Misc (1/10) - Meetings == Next Week == - Continue ongoing tasks

6 years, 10 months

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[ACTIVITY] week ending 24 Mar 2019

by Richard Henderson

[VIRT-263 # ARMv8.1-VHE Virtual Host Extensions ] Picked up my partial patch set and started on it again. It is improved by having done the pauth/bti/mte work. But still a work in progress. [VIRT-327 # Richard's upstream QEMU work ] Version 3 of tcg/ppc vector instructions. Reviewed target/rx v4. Fixed thread=single expansion of casp after Alex did all the hard work tracking down the kernel failure, and writing me a test case. Looking into the size of the softmmu tlb expansion. Current thinking is to move tlb out of CPUArchState into a new struct that precedes env, so that the tlb is at small negative offsets from env, so that {mask, table} is loadable with LDP/LDRD. r~

6 years, 10 months

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[ACTIVITY] week ending Mar. 24 2019

by Alex Bennée

Upstream Work ([VIRT-109]) ========================== - posted some CI clean-ups for next 4.0-rc - posted {PATCH v1 0/3 for 4.0} reduce timeouts on Travis Message-Id: <20190319124800.7454-1-alex.bennee(a)linaro.org> - posted {PATCH} .travis.yml: reduce number of targets built while disabling things Message-Id: <20190321124857.28132-1-alex.bennee(a)linaro.org> - will send PR on Monday - while testing {Qemu-devel} {PATCH 3/4} memory: introduce memory_global_after_dirty_log_sync Message-Id: <20180209104546.29401-4-pbonzini(a)redhat.com> - discovered regression -cpu max -accel tcg,thread=single with ARM64_LSE_ATOMICS kernel breaks - this is likely due to different code paths for non-MTTCG atomics - however attempts [to reproduce in linux-user] have so far drawn a blank - have notified rth who can hopefully find the problem [VIRT-109] https://projects.linaro.org/browse/VIRT-109 [to reproduce in linux-user] https://github.com/stsquad/qemu/tree/for-4.0/mttcg-and-lse-atomics Other ===== - more work on Connect presentation Absences ======== - Connect BKK19 (1-5th April 2019) - holiday after Connect Current Review Queue ==================== * {Qemu-devel} {multiprocess RFC PATCH 00/37} Initial support of multi-process qemu Message-Id: <20190307072025.8041-1-elena.ufimtseva(a)oracle.com> * {Qemu-devel} {PATCH 0/6} Refine exec Message-Id: <20190321082555.21118-1-richardw.yang(a)linux.intel.com> * {PATCH v5 00/26} KVM: arm64: SVE guest support Message-Id: <1553017938-710-1-git-send-email-Dave.Martin(a)arm.com> * {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> -- Alex Bennée

6 years, 10 months

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[ACTIVITY] report week ending 22 Mar

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] + tagged rc0 for QEMU 4.0.0; various other release-ish work * VIRT-268 [QEMU support for dual-core Cortex-M Musca board] + more progress with FP support: lazy state saving and the vlldm/vlstm insns now implemented. FP support is now feature-complete, though some bugs likely remain to be fixed. * A day or so taken up by move to a new desktop machine (but builds should go faster now!) NB: I'm not working on Wednesday or Friday next week. thanks -- PMM

6 years, 10 months

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[ACtiVITY] 18 - 22 March 2019

by Diana Picus

== Progress == * LLVM 8.0.0 Release for ARM & AArch64 [LLVM-526] - LLVM 8.0.0 is out! * [Thumb GlobalISel] Bugfixes [LLVM-544] - Patch for alignment issues ready to commit next week - With the patch, we can build clang successfully, but it fails some of its tests - Investigated one of the tests, it's failing because we end up representing 'true' as '-1'. Going to prepare a patch for that next week * IR SVE Reviews [LLVM-545] - Reviewed D32530 - Scalable Vector IR Type * Buildbot babysitting - Reported some failures upstream - Complained about non-deterministic libfuzzer tests == Plan == * LLVM-544, LLVM-545

6 years, 10 months

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[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, 10 months

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