- linaro-toolchain - lists.linaro.org

by Peter Maydell

(short week, 3 days) Progress: * VIRT-65 [QEMU upstream maintainership] - getting rc3 out of the door, including sorting out some last minute bug fixes. As usual, we hope not to need an rc4 but I expect we will. - code review; a two-day blitz has got my to-review queue down to a slightly more manageable size... + rth's series refactoring SVE load/store implementation + Guenter's i.MX watchdog support series + brief pass over raspi USB host controller emulation series + patch adding /secure-chosen/kaslr-seed to the virt dtb + the Greensocs/Xilinx clock framework patchset [including doing an editing pass on the docs] thanks -- PMM

6 years, 5 months

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How to use 'runtime-linaro-...' and 'sysroot-linaro-...' archives ?

by Константин Аладышев

Hello! I know, this is probably a very stupid question, but I couldn't find an answer for it. On the page https://releases.linaro.org/components/toolchain/binaries/latest-5/arm-linu… there are 3 major download components: gcc/sysroot/runtime. I download 'gcc', add 'gcc-linaro-.../bin' to my PATH and cross compile my apps. On my target system, I need 'libc', and it is present in the 'sysroot-linaro-...'. Do I need to copy all of the contents of 'sysroot-linaro-...' folder to my target? 'linaro-sysroot' folder is kinda big. 'libc.so' library is 13MB. If there is a way to decrease its size, if I want to use Linaro compiled programs on an embedded target? And what is a purpose of 'runtime-linaro-..." component?

6 years, 5 months

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How to use 'runtime-linaro-...' and 'sysroot-linaro-...' archives ?

by Konstantin Aladyshev

Hello! I know, this is probably a very stupid question, but I couldn't find an answer for it. On the page https://releases.linaro.org/components/toolchain/binaries/latest-5/arm-linu… there are 3 major download components: gcc/sysroot/runtime. I download 'gcc', add 'gcc-linaro-.../bin' to my PATH and cross compile my apps. On my target system, I need 'libc', and it is present in the 'sysroot-linaro-...'. Do I need to copy all of the contents of 'sysroot-linaro-...' folder to my target? 'linaro-sysroot' folder is kinda big. 'libc.so' library is 13MB. If there is a way to decrease its size, if I want to use Linaro compiled programs on an embedded target? And what is a purpose of 'runtime-linaro-..." component?

6 years, 5 months

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[ACTIVITY] 6 - 10 April 2020

by Prathamesh Kulkarni

== This Week == * LLVM-611 (tune heuristic to lower blx): Working on feedback. * GNU-659: Doing benchmarking experiments * Public holiday - One day off == Next Week == - Continue with LLVM-611 and GNU-659

6 years, 5 months

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[ACTIVITY] 6-10 April 2020

by Christophe Lyon

== Progress == * GCC upstream validation: - reported a couple of failures/regressions * GCC: - comparing testsuite results for cortex-m3 and cortex-m33 with cortex-a9 to check what cortex-M problem there are. Updated cmse-15.c test. Analyzing / bisecting other failures. - Sent fixes to MVE tests to avoid failures on arm-linux-gnueabi toolchains - Updated a few bugzilla entries about cortex-m issues * misc: - infra fixes / troubleshooting / reviews == Next == * FDPIC GDB * GCC/cortex-M

6 years, 5 months

1
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Disk full on linaro-tk1-06 (buildbot failure in LLVM on clang-cmake-armv7-full)

by Ilya Leoshkevich

Hi, clang-cmake-armv7-full fails with "No space left on device", e.g.: http://lab.llvm.org:8011/builders/clang-cmake-armv7-full/builds/9808/steps/… > The Buildbot has detected a new failure on builder clang-cmake-armv7- full while building llvm. > Full details are available at: > http://lab.llvm.org:8011/builders/clang-cmake-armv7-full/builds/9808 > > Buildbot URL: http://lab.llvm.org:8011/ > > Buildslave for this Build: linaro-tk1-06 > > Build Reason: scheduler > Build Source Stamp: [branch master] 3bc439bdff8bb5518098bd9ef52c56ac071276bc > Blamelist: Ilya Leoshkevich <iii(a)linux.ibm.com> > > BUILD FAILED: failed Checkout test-suite > > sincerely, > -The Buildbot Could someone please take a look? Best regards, Ilya

6 years, 5 months

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[ACTIVITY] week ending Apr. 12 2020

by Alex Bennée

VirtIO Related Work ([VIRT-366]) ================================ [VIRT-366] <https://projects.linaro.org/browse/VIRT-366> slides with virtio architectures for Victor an overview blogpost for Ebba - started drafting a blog post Upstream Work ([VIRT-109]) ========================== - posted [PULL for 5.0-rc2 00/13] various fixes Message-Id: <20200407155118.20139-1-alex.bennee(a)linaro.org> - a bit of launchpad triage for release - posted [PATCH for 5.0-rc3 v1 00/11] more random fixes Message-Id: <20200409211529.5269-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Other ===== - updated [my QEMU developer guide] for team workshop [my QEMU developer guide] <https://people.linaro.org/~alex.bennee/org/presentations/qemu-developer-gui…> Absences ======== - Easter Weekend (bank holidays) Current Review Queue ==================== * [RFC][PATCH v2 0/3] IVSHMEM version 2 device for QEMU Message-Id: <cover.1578407802.git.jan.kiszka(a)siemens.com> Added: <2020-04-09 Thu> * [PATCH v6 00/36] Initial support for multi-process qemu Message-Id: <cover.1586165555.git.elena.ufimtseva(a)oracle.com> Added: <2020-04-06 Mon> * [PATCH v4 00/10] tests/vm: Add support for aarch64 VMs Message-Id: <20200312142728.12285-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> * [PATCH v8 00/74] per-CPU locks Message-Id: <20200326193156.4322-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> -- Alex Bennée

6 years, 5 months

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[ACTIVITY] report week ending 9 Apr

by Peter Maydell

(short week, 4 days) Progress: * VIRT-364 [QEMU support for ARMv8.1-M extensions] - Still working through the Neon decoder refactoring. Finished loads-and-stores and am now on the 2000-line function that handles data-processing insns... thanks -- PMM

6 years, 5 months

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Failing libcxx-libcxxabi-libunwind bots

by Louis Dionne

Hi, It looks like several bots assigned to you started failing after e6a39f00e8d0 was committed: http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-armv8-linux-no… http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-armv8-linux http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-aarch64-linux http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-aarch64-linux-… They all fail on the test libcxx/test/libcxx/modules/stds_include.sh.cpp with the following error: <...>/libcxx/test/libcxx/modules/stds_include.sh.cpp:28:2: fatal error: file '<...>/libcxx/include/type_traits' has been modified since the module file '<TMP>/ModuleCache/1E92AHT/std-1V9DLRO.pcm' was built #include <vector> ^ <...>/libcxx/test/libcxx/modules/stds_include.sh.cpp:28:2: note: please rebuild precompiled header '<TMP>/ModuleCache/1E92AHT/std-1V9DLRO.pcm' 1 error generated. Our other bots are not failing, so I very strongly suspect this is not because of the change itself, but rather some weirdness in your bot configuration. For that reason, I will *not* revert the change (that would likely not improve the situation anyway). Can you please collaborate with us to understand and fix the issue? Thanks, Louis

6 years, 5 months

2
5
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Broken libcxx-libcxxabi-libunwind bots due to Filesystem tests

by Louis Dionne

Hi, It looks like the following bots assigned to you started failing recently: http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-armv7-linux http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-armv7-linux-no… The failing tests are all filesystem tests: FAIL: libc++::assign.pass.cpp FAIL: libc++::path.pass.cpp FAIL: libc++::replace_filename.pass.cpp FAIL: libc++::refresh.pass.cpp FAIL: libc++::file_size.pass.cpp FAIL: libc++::file_type_obs.pass.cpp FAIL: libc++::hard_link_count.pass.cpp FAIL: libc++::last_write_time.pass.cpp FAIL: libc++::ctor.pass.cpp FAIL: libc++::ctor.pass.cpp FAIL: libc++::increment.pass.cpp FAIL: libc++::exists.pass.cpp FAIL: libc++::is_block_file.pass.cpp FAIL: libc++::is_character_file.pass.cpp FAIL: libc++::is_directory.pass.cpp FAIL: libc++::is_empty.pass.cpp FAIL: libc++::is_fifo.pass.cpp FAIL: libc++::is_other.pass.cpp FAIL: libc++::is_regular_file.pass.cpp FAIL: libc++::is_socket.pass.cpp Having seen some of these issues before, I strongly suspect this is due to the fact that your builder is running as root. Libc++'s filesystem tests are known to fail when run as root, because some of them need to check for failure to access some files for which there's no permission. This doesn't seem to work when run as root. Can you work with us to resolve this issue? Thanks, Louis

6 years, 5 months

3
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[ACTIVITY] 30 March - 3 April 2020

by Christophe Lyon

== Progress == * GCC upstream validation: - reported a couple of failures/regressions * GCC: - comparing testsuite results for cortex-m3 and cortex-m33 with cortex-a9 to check what cortex-M problem there are. Spent a long time isolating a regression in CMSE tests. Filed PR94445 which was then quickly fixed by upstream in ICF optimization. * misc: - infra fixes / troubleshooting / reviews == Next == * FDPIC GDB * GCC/cortex-M

6 years, 5 months

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[ACTIVITY] week ending 5 Apr 2020

by Richard Henderson

[VIRT-349 # QEMU SVE2 Support ] Met with Qualcomm on Friday to discuss sharing the development work, and help start bringing their new-hire, Stephen Long, up to speed on qemu. Gave Stephen generic qemu development pointers, and a simple set of SVE2 instruction on which to wet his feet. [VIRT-327 # Richard's upstream QEMU work ] Better constant propagation and allocation for TCG. Worked on probe_guest_base as a follow-up to some of the work Alex was doing wrt init_guest_space. Misc patch review for 5.0. [GCC] Posted v3 of aarch64 cmpti patch set. r~

6 years, 5 months

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[ACTIVITY] 30 March - 3 April 2020

by Prathamesh Kulkarni

== This Week == * LLVM - LLVM-611 (Tune heuristic for blx): Posted upstream. - LLVM-612 (Redundant reg moves for 8-bit immediates): WIP patch * Public Holiday - one day off == Next Week == - Continue with LLVM tasks - Start looking at GNU-659

6 years, 5 months

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[ACTIVITY] week ending Apr. 5 2020

by Alex Bennée

VirtIO Related Work ([VIRT-366]) ================================ - minor planning work - need a few slides with virtio architectures for Victor - a overview blogpost for Ebba [VIRT-366] <https://projects.linaro.org/browse/VIRT-366> Upstream Work ([VIRT-109]) ========================== - GSoC feedback on proposals - we have 3 students putting forward proposals for TCG cache plugin - posted [PATCH] hw/core: properly terminate loading .hex on EOF record Message-Id: <20200401193849.14017-1-alex.bennee(a)linaro.org> - posted [PATCH] target/arm: don't expose "ieee_half" via gdbstub Message-Id: <20200402143913.24005-1-alex.bennee(a)linaro.org> - posted [PATCH for 5.0 v2 00/10] A selection of sanitiser fixes Message-Id: <20200401094759.5835-1-alex.bennee(a)linaro.org> - the linux-user guest map is better targeted at next week - posted [PATCH v3 for 5.0-rc2 00/12] a selection of random fixes Message-Id: <20200403191150.863-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Completed Reviews [1/1] ======================= [PATCH for-5.0 v3 0/7] configure: Improve PIE and other linkage Message-Id: <20200327220353.27233-1-richard.henderson(a)linaro.org> Absences ======== - Splitting time between work and home-schooling Current Review Queue ==================== * [PATCH v4 00/10] tests/vm: Add support for aarch64 VMs Message-Id: <20200312142728.12285-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> * [PATCH v8 00/74] per-CPU locks Message-Id: <20200326193156.4322-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> * [virtio-dev] [RFC PATCH] virtio-iommu: Add PAGE_SIZE_MASK property Message-Id: <20200323133831.2110014-1-jean-philippe(a)linaro.org> Added: <2020-03-27 Fri> * [virtio-dev] [PATCH v2 00/10] virtio-mem: paravirtualized memory Message-Id: <20200311171422.10484-1-david(a)redhat.com> Added: <2020-03-27 Fri> -- Alex Bennée

6 years, 5 months

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[ACTIVITY] report week ending 3 Apr

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - More freeze related wrangling... * VIRT-241 [QEMU ISA Support for A-profile] - pushed the ARMv8.2-TTS2UXN patchset out to the mailing list - found and fixed a bug in our PAN support where we were making PSTATE.PAN forbid execute access, not just data access * VIRT-364 [QEMU support for ARMv8.1-M extensions] - Started on some preliminary refactoring that we'll need so we can more conveniently modify the decoder for v8.1M: converting the A32/T32 Neon decoder to use decodetree. I've done the "post-v8.0 extensions" instructions, and started on the loads-and-stores. thanks -- PMM

6 years, 5 months

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TX2 + C++17 problems

by Jussi Lind

Hi, We are having some serious problems after we upgraded from C++14 to C++17 on an Jetson TX2 ARM device. Our system tests started to behave differently and fail. It seems that when our application uses a library (also developed by us) some data gets corrupted when delivered to a class constructor. For example, the .second of and std::pair<float> appears to be the .first and the .second is garbage. This is deterministic, but different tests are failing depending on the combination: library C++17/C++14 <-> application C++14/C++17. This is on Ubuntu 18.04 and gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04). Nothing like this happens on Intel. So: ARM, C++14: OK Intel, C++14: OK ARM, C++17: FAIL Intel, C++17: OK Any ideas what could cause this? I know this is a bit vague, but this a commercial, closed-source application so I cannot yet give any other information. BR, Jussi Lind

6 years, 5 months

3
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[ACTIVITY] week ending 29 Mar 2020

by Richard Henderson

[VIRT-349 # QEMU SVE2 Support ] Posted the first incremental patch set for review, as requested by Qualcomm. [VIRT-327 # Richard's upstream QEMU work ] Patch review, much of it 5.0 related, but also v6 of the riscv vector patch set. Revise the PIE and linkage patch set. r~

6 years, 6 months

1
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[ACTIVITY] 23-27 March 2020

by Christophe Lyon

== Progress == * GCC upstream validation: - reported a couple of failures/regressions * GCC: - comparing testsuite results for cortex-m3 and cortex-m33 with cortex-a9 to check what cortex-M problem there are. Fixed a few testcases. Managed to use qemu-system-arm to run cortex-m33 code with CMSE features. (Thanks to Peter Maydell for the help!) * misc: - infra fixes / troubleshooting / reviews == Next == * FDPIC GDB * GCC/cortex-M

6 years, 6 months

1
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[ACTIVITY] report week ending 27 Mar

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - Softfreeze this week, so a lot of pull request handling, and one last small arm pullreq to put together and send out - Our Coverity Scan setup was broken (the person who usually does the builds updated his machine to a newer Fedora which broke the tool). I pulled up an old patchset I had from a year ago which scripts things so you can do a build-and-upload automatically via Docker so that we're not dependent on one person for this. This took longer than I expected as there were a bunch of things that needed fixing both in the scripting and in bits of the codebase that the tools warned about. Patch series sent. - When we did get a Coverity run through, it reported 112 new issues; spent some time going through and triaging them (lots of false positives but also lots of real bugs) and submitting patches for some of them. * VIRT-364 [QEMU support for ARMv8.1-M extensions] - sketched out the work required and created some 'story' level cards to go under the epic. Still open questions: + should we model Cortex-M55 or a more generic 'max' CPU? + what board model do we want to use? + does LITE have any guest code using v8.1M features for testing? Random notes: * my new desk chair and standing desk arrived this week (the latter still needs assembling...) so I am gradually improving the rough edges of my WFH setup. thanks -- PMM

6 years, 6 months

1
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[ACTIVITY] week ending Mar. 29 2020

by Alex Bennée

VirtIO Related Work ([VIRT-366]) ================================ - posted [RFC PATCH 0/8] some tweaks to the document build process Message-Id: <20200327103803.10460-1-alex.bennee(a)linaro.org> [VIRT-366] <https://projects.linaro.org/browse/VIRT-366> Upstream Work ([VIRT-109]) ========================== - posted [PATCH v1 for 5.0 00/11] testing/next Message-Id: <20200323161514.23952-1-alex.bennee(a)linaro.org> - posted [PULL for 5.0-rc1 00/11] testing updates (+ one mttcg change) Message-Id: <20200325151543.32478-1-alex.bennee(a)linaro.org> - needed [PATCH] qemu/atomic.h: add #ifdef guards for stdatomic.h Message-Id: <20200326170121.13045-1-alex.bennee(a)linaro.org> - posted [PATCH for 5.0 v1 0/7] A selection of sanitiser fixes Message-Id: <20200327094945.23768-2-alex.bennee(a)linaro.org> - posted [PULL v2 for 5.0 00/12] testing updates (+ one mttcg change) Message-Id: <20200327181320.23329-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Completed Reviews [3/3] ======================= [PATCH-for-5.0 v2 0/4] tests/docker: Fixes for 5.0 Message-Id: <20200322120104.21267-1-philmd(a)redhat.com> - CLOSING NOTE [2020-03-23 Mon 10:00] Simple enough Added: <2020-03-22 Sun> [PATCH] qemu-user: fix build with LLVM lld 10 Message-Id: <20200327140839.GB28583@Air-de-Roger> [virtio-dev] [PATCH v3] Add virtio SCMI device specification Message-Id: <87blonas8y.fsf(a)linaro.org> Absences ======== - Splitting time between work and home-schooling Current Review Queue ==================== * [PATCH v4 00/10] tests/vm: Add support for aarch64 VMs Message-Id: <20200312142728.12285-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> * [PATCH v8 00/74] per-CPU locks Message-Id: <20200326193156.4322-1-robert.foley(a)linaro.org> Added: <2020-03-27 Fri> * [virtio-dev] [RFC PATCH] virtio-iommu: Add PAGE_SIZE_MASK property Message-Id: <20200323133831.2110014-1-jean-philippe(a)linaro.org> Added: <2020-03-27 Fri> * [virtio-dev] [PATCH v2 00/10] virtio-mem: paravirtualized memory Message-Id: <20200311171422.10484-1-david(a)redhat.com> Added: <2020-03-27 Fri> -- Alex Bennée

6 years, 6 months

1
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[ACTIVITY] 23 - 27 March 2020

by Diana Picus

== Progress == * Out of office 1 day * More Morello - Patch set for the 'disassemble' command in review - Working on the final part of the capability formatting == Plan == * More Morello

6 years, 6 months

1
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[ACTIVITY] week ending 22 Mar 2020

by Richard Henderson

Progress: [VIRT-349 # QEMU SVE2 Support ] 10 of N insn groups implemented. Annoyingly, there doesn't seem to be a summary of new insns, so confirming that all of the insns have been implemented. [VIRT-327 # Richard's upstream QEMU work ] Patch review. Mostly Phil's arm --disable-tcg set. Cleanup for some of the new Coverity reports. Flush tcg patch queue. [GCC] Two revisions improving TImode comparisons for aarch64 (PR94174). https://gcc.gnu.org/pipermail/gcc-patches/2020-March/542447.html [Kernel] Follow-up on a discussion a few weeks ago re __range_ok. The gcc cmpti patch set is in support of that, but I also found a much better solution for constant sized checks. http://lists.infradead.org/pipermail/linux-arm-kernel/2020-March/719754.html r~

6 years, 6 months

1
0
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[ACTIVITY] week ending Mar. 22 2020

by Alex Bennée

VirtIO Related Work ([VIRT-366]) ================================ - Whole bunch of scoping work on tasks for this cycle - Briefed the TSC Strategic Meeting on work plan - Feedback on Friday call seemed positive, hopefully will get the votes [VIRT-366] <https://projects.linaro.org/browse/VIRT-366> QEMU Tooling ([VIRT-252]) ========================= Extend gdbstub for SVE ([VIRT-281]) - posted [PATCH v1 00/28 for 5.0] testing and gdbstub Message-Id: <20200316172155.971-1-alex.bennee(a)linaro.org> - now merged and parent cards closed out including <https://projects.linaro.org/browse/VIRT-26> Upstream Work ([VIRT-109]) ========================== - posted [PATCH v1 0/5] testing updates (docker and acceptance CI tweaks) Message-Id: <20200309202318.3481-1-alex.bennee(a)linaro.org> - spent a fair time fighting with check-acceptance tests weirdness - fielded questions from potential students for GSoC cache modelling project - more time tracking down "check-acceptance" issues - posted [RFC PATCH for 5.0] configure: disable MTTCG for MIPS guests Message-Id: <20200320114522.16273-1-alex.bennee(a)linaro.org> Completed Reviews [2/2] ======================= [PATCH v10 0/3] Acceptance test: Add "boot_linux" acceptance test Message-Id: <20200317141654.29355-3-crosa(a)redhat.com> [PATCH 0/5] QEMU Gating CI Message-Id: <20200312193616.438922-5-crosa(a)redhat.com> Absences ======== - Splitting time between work and home-schooling Current Review Queue ==================== * [PATCH 0/2] thread: add lock guard macros Message-Id: <20200311123624.277221-1-stefanha(a)redhat.com> Added: <2020-03-11 Wed> * [PATCH v8 0/9] qemu-binfmt-conf.sh Message-Id: <20200307170251.GA7@dd5f6ec33fb0> Added: <2020-03-08 Sun> * [RFC][PATCH 0/3] IVSHMEM version 2 device for QEMU Message-Id: <cover.1573477032.git.jan.kiszka(a)siemens.com> Added: <2020-02-14 Fri> * [RFC 0/9] Add an interVM memory sharing device Message-Id: <1580815851-28887-1-git-send-email-i.kotrasinsk(a)partner.samsung.com> Added: <2020-02-05 Wed> -- Alex Bennée

6 years, 6 months

1
0
0 0

[ACTIVITY] 16-20 March 2020

by Christophe Lyon

== Progress == * BFD Linker: - GNU-629: non-contiguous memory support: minor follow-ups * GCC upstream validation: - reported a couple of failures/regressions - PR90378 working on reproducing a non-functional code problem with spec2006 on arm with LTO and -Os. Looks like a stack corruption issue * GCC: - comparing testsuite results for cortex-m3 and cortex-m33 with cortex-a9 to check what cortex-M problem there are. * misc: - infra fixes / troubleshooting / reviews == Next == * spec2006 / LTO / Os / aarch32 * FDPIC GDB * GCC/cortex-M

6 years, 6 months

1
0
0 0

[ACTIVITY] report week ending Mar 20

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - Softfreeze this week, so a lot of pull request handling, and one last small arm pullreq to put together and send out - Our Coverity Scan setup was broken (the person who usually does the builds updated his machine to a newer Fedora which broke the tool). I pulled up an old patchset I had from a year ago which scripts things so you can do a build-and-upload automatically via Docker so that we're not dependent on one person for this. This took longer than I expected as there were a bunch of things that needed fixing both in the scripting and in bits of the codebase that the tools warned about. Patch series sent. - When we did get a Coverity run through, it reported 112 new issues; spent some time going through and triaging them (lots of false positives but also lots of real bugs) thanks -- PMM

6 years, 6 months

1
0
0 0

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linaro-toolchain