- linaro-toolchain - lists.linaro.org

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - sent pullreq with some of the pending rST doc conversion work - finished the work on converting the json QAPI doc comments from texinfo to rst, and sent out a patchset for this - code review: - Cornelia's patches rstifying some s390 docs - rth's 'Reduce aa64_va_parameter overhead' patch - a patchset fixing some minor memory leaks in timer devices - rth's PAN/ATS1E1/UAO patchset - sent out an arm pullreq I seem to be currently keeping on top of the code-review queue with about an afternoon a week spent on review, which is pleasing. thanks -- PMM

5 years, 10 months

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[ACTIVITY] week ending 0202-2020

by Richard Henderson

[VIRT-263 # ARMv8.1-VHE Virtual Host Extensions ] Posted v5 & v6. { [VIRT-262 # ARMv8.1-PAN Privileged Access Never] [VIRT-273 # ARMv8.2-ATS1E1 ] [VIRT-276 # ARMv8.2-UAO ] Posted v2. } [VIRT-327 # Richard's upstream QEMU work ] Addressed a performance regression, of sorts, for ppc32, caused by one of my cputlb reorgs. r~

5 years, 10 months

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[ACTIVITY] week ending Feb. 2 2020

by Alex Bennée

Upstream Work ([VIRT-109]) ========================== - posted [PATCH v2 00/12] testing/next (with build fixes!) Message-Id: <20200130113223.31046-10-alex.bennee(a)linaro.org> - even more furtling and messing around trying to get CI gree - very annoying docker failure I've been unable to replicate - possibly a broken parallel docker build - see [current state] - posted [PATCH] target/arm: fix TCG leak for fcvt half->double Message-Id: <20200131153439.26027-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> [current state] <https://github.com/stsquad/qemu/tree/testing/next> Misc ==== - sorting out travel for BUD20 - reading up on VirtIO for various LBI calls Completed Reviews [0/0] ======================= [PATCH 0/8] tests/vm: Add support for aarch64 VMs Message-Id: <20200124165335.422-1-robert.foley(a)linaro.org> [PATCH v2 0/4] migration: Replace gemu_log with qemu_log Message-Id: <20200117192808.129398-1-jkz(a)google.com> - CLOSING NOTE [2020-02-01 Sat 20:38] Looks ok Added: <2020-01-21 Tue> Absences ======== - 23rd-27th March BUD20 Current Review Queue ==================== * [PATCH v5 00/41] target/arm: Implement ARMv8.1-VHE Message-Id: <20200129235614.29829-1-richard.henderson(a)linaro.org> Added: <2020-01-30 Thu> * [PATCH v2 0/7] configure: Improve PIE and other linkage Message-Id: <20191218223441.23852-1-richard.henderson(a)linaro.org> Added: <2020-01-06 Mon> * {RFC PATCH v3 000/132} Proof of concept for Meson integration Message-Id: <1576155176-2464-1-git-send-email-pbonzini(a)redhat.com> Added: <2019-12-12 Thu> * {PATCH 0/2} tests/acceptance: Add boot vmlinux test Message-Id: <20191206140012.15517-1-wainersm(a)redhat.com> Added: <2019-12-06 Fri> -- Alex Bennée

5 years, 10 months

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[ACTIVITY] report week ending 31 Jan

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - more work on rST doc conversion. I've started in on converting the documentation that we auto-generate from doc comments in json files (this covers QEMU's QMP protocol and a similar protocol for the guest-agent). I now have something that is basically the right shape and correctly handles 'Command' and 'Object' (with 'Enum' and Alternate' and some other corner cases still to do). Might be able to send a patchset out next week with luck. This is I think the last major obstacle to the rST conversion -- once it's done the rest is just simple-but-tedious conversion of the remaining document files. - code review: + aspeed 'misc fixes and extensions' patchset + "Stop wrongly programming GICR_PENDBASER.PTZ bit" bugfix patch + KVM 'adjust virtual time when VM starts/stops' patchset + last few unreviewed patches in RTH's VHE patchset respin -- PMM

5 years, 10 months

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[ACTIVITY] 27-31 January 2020

by Christophe Lyon

== Progress == * BFD Linker: - GNU-629: non-contiguous memory support: fixed bugs found when running the testsuite with the new option activated. Adding warnings to help understand potential placement changes. * GCC: * GCC-9: continued work for validation of -mpure-code on v6m: the patch applies cleanly in the branch, but there are unexpected failures compared to trunk. Debugging. * GCC upstream validation: - reported a couple of failures/regressions * misc: - infra fixes / troubleshooting / reviews == Next == * Binutils: GNU-629: support non-contiguous memory regions in linker * GCC-9: continue work for validation of -mpure-code on v6m

5 years, 10 months

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[ACTIVITY] 27 - 31 January 2020

by Diana Picus

== Progress == * Updating lldb for the latest Morello architecture changes * Started running the tests for llvm 10.0.0-rc1 == Plan == * Check up on the release * More Morello

5 years, 10 months

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[ACTIVITY] Week ending 31st January 2020

by Peter Smith

[LLD] Fixed interworking problem causing Thumb2 kernel not to Some diagnosis of LLD problem when .ctor and .init_array initialisers are used. [LLVM-MC] Upstream reviews for some methods to avoid llvm-mc making symbols inter-positionable that the code generator has assumed are not. [Morello] reviews. [Other] Clean up my Jira tickets so that they can be passed on or closed. This is my last week as a Linaro assignee, will be going back to the Arm as of next week. I've really enjoyed my time here, thank you for having me.

5 years, 10 months

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[ACTIVITY] week ending 24th January 2020

by Peter Smith

Buildbots, busy week that took up most of spare time - deploying timezone fix to containers - a couple of weekend patches that broke Arm and AArch64 bisected and followed up. - difficult to track down stage-2 failure that was difficult to work out whether there was a bug in clang, or a code-gen failure in the backend, also made it harder to bisect. Turned out that it had caused more easy to bisect failures in other projects and by the time I'd found the patch it had been fixed. [ClangBuiltLinux] LLD's simplified interworking looks to be insufficient for the linux kernel thumb-2 build. Got agreement with upstream on how to proceed. Have a patch ready to send upstream. A small amount of upstream review and bisecting some Linaro CI build failure for the -fpatchable-functions feature in Clang-10. Looks to have been resolved.

5 years, 10 months

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[ACTIVITY] week ending 26 Jan 2020

by Richard Henderson

[VIRT-327 # Richard's upstream QEMU work ] * tcg patch queue flush, including some VHE prereqs. * target/hppa patch queue flushing. * combined the two in-flight avr patch sets, hoping to move that project to completion. * patch review. * target/s390x local variable "leak" fix, to satisfy a static analyzer. [VIRT-263 # ARMv8.1-VHE Virtual Host Extensions ] * started rebasing, and addressing the collected comments from v4 in December. r~

5 years, 10 months

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[ACTIVITY] week ending Jan. 26 2020

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= Upstream Work ([VIRT-109]) ========================== - posted [PATCH v1 0/3] current testing/next queue Message-Id: <20200122102223.20036-1-alex.bennee(a)linaro.org> - a bunch of reviews - investigation of documentation and CI failures - posted [PATCH v1 00/13] docker multiarch awareness Message-Id: <20200124204026.2107-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Misc ==== - looking at travel options for BUD20 Completed Reviews [8/8] ======================= [PATCH v2 0/5] linux-user: Implement x86_64 vsyscalls Message-Id: <20200116194341.402-1-richard.henderson(a)linaro.org> [PATCH 0/9] cputlb: Various cleanups Message-Id: <20200109024907.2730-1-richard.henderson(a)linaro.org> [PATCH] linux-user: Reserve space for brk Message-Id: <20200117230245.5040-1-richard.henderson(a)linaro.org> [PATCH] qapi: Fix code generation with Python 3.5 Message-Id: <20200116202558.31473-1-armbru(a)redhat.com> [PATCH 0/2] tests/tcg/multiarch: Add tests for implemented real Message-Id: <1579536554-30701-1-git-send-email-Filip.Bozuta(a)rt-rk.com> - CLOSING NOTE [2020-01-24 Fri 19:58] Needs to be less verbose Added: <2020-01-20 Mon> [PATCH rc2 00/25] target/avr merger Message-Id: <20200124005131.16276-1-f4bug(a)amsat.org> [PATCH 0/3] convert qemu-nbd, qemu-block-drivers to rST Message-Id: <20200116141511.16849-1-peter.maydell(a)linaro.org> [PATCH v2 0/6] buildsys: Build faster (mostly tools and linux-user) Message-Id: <20200118140619.26333-1-philmd(a)redhat.com> Absences ======== - 23rd-27th March BUD20 Current Review Queue ==================== * [PATCH 3/8] tests/vm: change wait_ssh to optionally wait for root. Message-Id: <20200124165335.422-4-robert.foley(a)linaro.org> Added: <2020-01-24 Fri> * [PATCH v2 0/4] migration: Replace gemu_log with qemu_log Message-Id: <20200117192808.129398-1-jkz(a)google.com> Added: <2020-01-21 Tue> * [PATCH v2 0/7] configure: Improve PIE and other linkage Message-Id: <20191218223441.23852-1-richard.henderson(a)linaro.org> Added: <2020-01-06 Mon> * {RFC PATCH v3 000/132} Proof of concept for Meson integration Message-Id: <1576155176-2464-1-git-send-email-pbonzini(a)redhat.com> Added: <2019-12-12 Thu> -- Alex Bennée

5 years, 10 months

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[ACTIVITY] 20-24 January 2020

by Christophe Lyon

== Progress == * BFD Linker: - GNU-629: non-contiguous memory support: debugging * GCC: * GCC-9: continued work for validation of -mpure-code on v6m: local newlib/crt0 patches, patched simulator. Running various validation configurations * GCC upstream validation: - reported a couple of failures/regressions * misc: - infra fixes / troubleshooting / reviews == Next == * Binutils: GNU-629: support non-contiguous memory regions in linker * GCC-9: continue work for validation of -mpure-code on v6m

5 years, 10 months

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[ACTIVITY] report week ending 24 Jan

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - code review: + RTH's bug fix for the PAuth ComputePAC operation + patchset adding DMA support for Exynos4210 UARTs - small patchset documenting the right way to conditionally run expensive computations that are only needed for trace event output, and updating a handful of places that used an older (worse) method - more QEMU documentation conversion to rST; in particular wrote a Sphinx 'hxtool' extension to handle pulling out fragments of documentation from QEMU's '.hx' files which define and document command line options thanks -- PMM

5 years, 10 months

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adding branch tracing and reverse debugging in GDB using Coresight etm traces

by zied guermazi

hiI am progressing in the implementation of the proposal "GDB process record and replay with ARM Coresight" https://lists.linaro.org/pipermail/coresight/2019-July/003021.html so far I was able to use perf events to configure the drivers for etm and collect the traces. the code was tested successfully on an STM32MP157A discovery kit (arm v7). and I can collect the traces from the perf mmapped aux area. For parsing them I needed to gather information about the cpu and etm registers. those are available in the events of type PERF_RECORD_AUXTRACE_INFO in the priv section. priv is a kind of "opaque" data structure where the layout is depending on the perf pmu drivers. the implementation of perf tool gives a good example to follow. I needed also to make a wrapper around opencsd library and again perf was offering a good example to follow. those are good reasons to think about factoring out the functionality of parsing etm traces on linux system in a dedicated library that can be reused by other software, a kind of libcoresightperf.is there any plan or ongoing activities for such a library? Kind RegardsZied Guermazi

5 years, 10 months

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[ACTIVITY] 20 - 24 January 2020

by Diana Picus

== Progress == * More EuroLLVM submissions reviews * More investigations into Morello bare metal debugging * Started looking into updating lldb for the latest Morello architecture changes * Asked Adhemerval to look into PR44157 == Plan == * More Morello * Keep an eye out for 10.0.0 - rc1

5 years, 10 months

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[ACTIVITY] 20 - 24 Jan 2020

by Prathamesh Kulkarni

== This Week == * GCC development - PR47785: Addressed Richard's suggestions and posted patch upstream. - PR92867: Addressed Joseph's suggestions and posted patch upstream. * GCC bugzilla: - PR93397: Investigated issue. * Misc - Meetings == Next Week == - Continue ongoing tasks

5 years, 10 months

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[ACTIVITY] week ending 19 Jan 2020

by Richard Henderson

[VIRT-327 # Richard's upstream QEMU work ] * Implement x86_64-linux-user vsyscall page, which should keep Peter's pre-merge testing working. * Another tcg queue pull without the bits that depend on the vsyscall implementation above. * Posted v2 of some fixes to -accel option processing. * Posted v2 of some fixes to target/arm syn data syndrome bits. * Wrote some test cases for a target/arm pauth sbox fix. * Investigated a fix for memory layout of -static-pie binaries. * Random patch review. r~

5 years, 10 months

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[ACTIVITY] week ending Jan. 19 2020

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= Extend gdbstub for SVE ([VIRT-281]) - posted [PATCH v5 00/22] gdbstub refactor and SVE support (+check-tcg tweaks) Message-Id: <20200114150953.27659-3-alex.bennee(a)linaro.org> [VIRT-281] <https://projects.linaro.org/browse/VIRT-281> Upstream Work ([VIRT-109]) ========================== - played with [for-5.0 PATCH 00/11] Support for reverse debugging with GDB Message-Id: <157709434917.12933.4351155074716553976.stgit@pasha-Precision-3630-Tower> - still broken but could be build stability - while reviewing vsyscall patches ran into qemu-x86_64, buster /sbin/ldconfig and setup_arg_pages (a mind dump) Message-Id: <874kwukmxr.fsf(a)linaro.org> - posted [qemu-web PATCH] documentation: update links to readthedocs Message-Id: <20200113103550.1133-1-alex.bennee(a)linaro.org> - we successfully recovered the qemu project name for rtd [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Completed Reviews [3/3] ======================= [for-5.0 PATCH 00/11] Support for reverse debugging with GDB Message-Id: <157709434917.12933.4351155074716553976.stgit@pasha-Precision-3630-Tower> - CLOSING NOTE [2020-01-13 Mon 18:00] Introduces some regressions into check-block that need to be fixed first. Added: <2020-01-06 Mon> [PATCH 0/4] migration: Replace gemu_log with qemu_log Message-Id: <20200114030138.260347-1-jkz(a)google.com> [PATCH 0/3] linux-user: Implement x86_64 vsyscalls Message-Id: <20200114210921.11216-4-richard.henderson(a)linaro.org> Current Review Queue ==================== * [PATCH v2 0/7] configure: Improve PIE and other linkage Message-Id: <20191218223441.23852-1-richard.henderson(a)linaro.org> Added: <2020-01-06 Mon> * {RFC PATCH v3 000/132} Proof of concept for Meson integration Message-Id: <1576155176-2464-1-git-send-email-pbonzini(a)redhat.com> Added: <2019-12-12 Thu> * {PATCH 0/2} tests/acceptance: Add boot vmlinux test Message-Id: <20191206140012.15517-1-wainersm(a)redhat.com> Added: <2019-12-06 Fri> * {RFC PATCH 00/10} hw/avr: Introduce the Arduino board Message-Id: <20191128015030.27543-1-f4bug(a)amsat.org> Added: <2019-11-28 Thu> -- Alex Bennée

5 years, 11 months

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[ACTIVITY] 13-17 January 2020

by Christophe Lyon

== Progress == * BFD Linker: - GNU-629: non-contiguous memory support: found problems in the testsuite when the flag is activated by default * GCC: - trying to find a way to add run more validation of -mpure-code on v6m, to support a request to backport to gcc-9: need to patch newlib's crt0.S which has some offending sequences * GCC upstream validation: - updated scripts to cope with the new git repo and release branches names * misc: - infra fixes / troubleshooting / reviews - fixed problems with automatic bisection of gcc regressions == Next == * Binutils: GNU-629: support non-contiguous memory regions in linker * GCC-9: continue work for validation of -mpure-code on v6m

5 years, 11 months

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[ACTIVITY] for week ending 17th January 2020

by Peter Smith

Morello - Upstream LLD INPUT_SECTION_FLAGS that I implemented downstream. Quite a few review comments to work through but I think I'm close to getting something accepted. This will hopefully come in useful for LLD with embedded systems. - Wrote down some definitions for the new relocations. LLD - landed fix for clang-built-linux-812 linux allyesconfig problem. - Quite a few upstream LLD and MC reviews Other Some research for the clang built linux conference.

5 years, 11 months

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[ACTIVITY] 13 - 17 January 2019

by Diana Picus

== Progress == * Out of office for 2 days * Reviewed EuroLLVM submissions * A bit more investigation into Morello bare metal debugging == Plan == * PR44157 * Morello bare metal debugging

5 years, 11 months

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missing sound libraries in version 6.3.1

by Markus Bollinger

Hello Linaro team, I want to use your cross compiler version 6.3.1, but I miss the library asound and its header (alsa/asoundlib.h) What do I need to do to fix this ? Best regards, Markus Bollinger

5 years, 11 months

2
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[ACTIVITY] Week 02

by Yvan Roux

* Part time at University o LLVM: * Machine Outliner: - New version submitted upstream o Misc * Various meetings and discussions.

5 years, 11 months

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Fwd: about QEMU support for SVE2 POC

by Diana Picus

Hi Ana, I don't know anything about the POC myself, but I'm forwarding this so our QEMU folks can answer. Cheers, Diana ---------- Forwarded message --------- From: Ana Pazos <apazos(a)quicinc.com> Date: Fri, 10 Jan 2020 at 19:08 Subject: about QEMU support for SVE2 POC To: diana.picus(a)linaro.org <diana.picus(a)linaro.org> Cc: Ana Pazos <apazos(a)quicinc.com> Hello Diana, We at Qualcomm are trying to find out the POC for QEMU support for SVE2. We have been using QEMU with SVE support, and need to find out when SVE2 support will be added to QEMU. I assume Linaro is involved in this task. Do you know the POC? Thanks for the help! Ana.

5 years, 11 months

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[ACTIVITY] 6-10 January 2020

by Christophe Lyon

== Progress == * BFD Linker: - GNU-629: non-contiguous memory support: sent updated versions with testcases and doc. * GCC: - trying to find a way to add run more validation of -mpure-code on v6m, to support a request to backport to gcc-9 - proposal to implement LLVM's -arm-assume-misaligned-load-store rejected by the community * GCC upstream validation: - reported/checked a few issues * misc: - infra fixes / troubleshooting / reviews - investigating problems with automatic bisection of gcc regressions - fixed a long-standing bug in proot == Next == * Binutils: GNU-629: support non-contiguous memory regions in linker

5 years, 11 months

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[ACTIVITY] week ending Jan. 12 2020

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= Extend gdbstub for SVE ([VIRT-281]) - respun [probably final iteration of gdbstub for SVE] [VIRT-281] <https://projects.linaro.org/browse/VIRT-281> [probably final iteration of gdbstub for SVE] <https://github.com/stsquad/qemu/tree/gdbstub/sve-registers-v5> Upstream Work ([VIRT-109]) ========================== - posted [PATCH v1 0/6] current testing/next (python and other fixes) Message-Id: <20200107135311.5215-1-alex.bennee(a)linaro.org> - posted [PATCH v3 0/6] semihosting read console support Message-Id: <20200108150252.6216-1-alex.bennee(a)linaro.org> - posted [PULL v2 00/14] testing fixes and semihosting console support Message-Id: <20200109141858.14376-1-alex.bennee(a)linaro.org> - posted [PATCH v1 0/2] fix for bug 1859021 Message-Id: <20200110161626.31943-1-alex.bennee(a)linaro.org> - started looking at [for-5.0 PATCH 00/11] Support for reverse debugging with GDB Message-Id: <157709434917.12933.4351155074716553976.stgit@pasha-Precision-3630-Tower> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Completed Reviews [4/4] ======================= [PATCH] freebsd: use python37 Message-Id: <20200106123746.18201-1-kraxel(a)redhat.com> - CLOSING NOTE [2020-01-07 Tue 11:13] Queued to my tree Added: <2020-01-07 Tue> [Qemu-devel] [PATCH v3] RISC-V: Select FPU gdb xml file based on the supported extensions Message-Id: <20190821162831.27811-1-georg.kotheimer(a)kernkonzept.com> - CLOSING NOTE [2020-01-07 Tue 11:27] Looks mostly ok modulo ensuring endianess is correct. Added: <2020-01-06 Mon> [PATCH v2 7/7] configure: Support -static-pie if requested Message-Id: <20191218223441.23852-6-richard.henderson(a)linaro.org> [PATCH 0/4] vl: Fixes for cleanups to -accel Message-Id: <20200109021710.1219-1-richard.henderson(a)linaro.org> Absences ======== - 6th Jan (4 day week) Current Review Queue ==================== * [PATCH v2 0/7] configure: Improve PIE and other linkage Message-Id: <20191218223441.23852-1-richard.henderson(a)linaro.org> Added: <2020-01-06 Mon> * [for-5.0 PATCH 00/11] Support for reverse debugging with GDB Message-Id: <157709434917.12933.4351155074716553976.stgit@pasha-Precision-3630-Tower> Added: <2020-01-06 Mon> * {RFC PATCH v3 000/132} Proof of concept for Meson integration Message-Id: <1576155176-2464-1-git-send-email-pbonzini(a)redhat.com> Added: <2019-12-12 Thu> * {PATCH 0/2} tests/acceptance: Add boot vmlinux test Message-Id: <20191206140012.15517-1-wainersm(a)redhat.com> Added: <2019-12-06 Fri> -- Alex Bennée

5 years, 11 months

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[ACTIVITY] week ending 12 Jan 2020

by Richard Henderson

[VIRT-327 # Richard's upstream QEMU work ] * TCG patch queue flush, including phase 1 increase for number of mmu_idx, on which VHE is dependent. * Random patch review. * Capstone update. * cputlb cleanup in prep for modeling ASIDs. r~

5 years, 11 months

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[ACTIVITY] Week ending 10th January 2020

by Peter Smith

Morello: - Implemented INPUT_SECTION_FLAGS in LLD for the Morello toolchain, now in review. Took most of spare engineering time this week. Will attempt to upstream once committed in Morello - Fixed pr44451 upstream, it was already fixed on Morello toolchain. LLD: - Made an attempt to fix the LLD linux kernel allyesconfig + cortex-a53 erratum problem. Was not successful as kernel linker script is just about as awkward as possible for this problem. I have a good idea of what to try next. Will aim to fix early next week. - Quite a few upstream reviews, some pending from last year.

5 years, 11 months

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[ACTIVITY] report week ending 10 Jan

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - caught up on the backlog of email that accumulated over the Christmas break - investigated an intermittent failure of a test case on our BSD hosts which had reached a failure rate that was seriously impeding the flow of pull requests. Tracked it down to glib's g_source_ref/unref not being thread-safe unless the GSource is attached to a GMainContext; QEMU gets this right for its own use but a set of mock functions used for a few testcases were not doing so, resulting in occasional races where the GSource would get destroyed while it was still in use. - code review: + Beata's "inject DABT for load/store insns KVM couldn't emulate" patch + a minor cubieboard cleanup patchset + i.MX RNGC device emulation patch - annual review season, some time spent on that thanks -- PMM

5 years, 11 months

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[ACTIVITY] 6 - 10 January 2019

by Diana Picus

== Progress == * Out of office until Tuesday * LLVM 9.0.1 - Uploaded final binaries - Still looking into PR44157 (CFI tests failing on armv7) * Morello LLDB - Trying to get bare metal debugging to work * More ARM Code of Conduct courses etc == Plan == * More Morello and PR44157

5 years, 11 months

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[ACTIVITY] 2-3 January 2020

by Christophe Lyon

Short "week" == Progress == * BFD Linker: - GNU-629: non-contiguous memory support: Cleaning up, adding testcases. * GCC upstream validation: - reported/checked a few issues * misc: - infra fixes / troubleshooting / reviews == Next == * Binutils: GNU-629: support non-contiguous memory regions in linker

5 years, 11 months

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[ACTIVITY] week ending 22 Dec 2019

by Richard Henderson

* Patch set cleaning up PIE/non-PIE linking - Add new support for static pie. * Another revision removing MMU_MODE_SUFFIX. * Random patch review. * Planning for Linux on ARM summit in Cambridge in February. r~

5 years, 11 months

1
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Bot failure caused by f72d001e099871fd5943679a8377f2fcc675f860

by Michael Trent

To whom, I’m seeing a failure on this bot: -- Command Output (stderr): -- /home/buildslave/buildslave/clang-cmake-armv7-quick/stage1/bin/llvm-objdump: error: '/home/buildslave/buildslave/clang-cmake-armv7-quick/llvm/llvm/test/tools/llvm-objdump/Inputs/macho-stabs-x86_64': can't find target: : error: unable to get target for 'x86_64---macho', see --version and --triple. This is just a binary file verifier. Is it the case this bot doesn’t have a mach-o disassembler? And if so, is there a way to disable this test on this bot? Thanks! MDT

5 years, 12 months

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[ACTIVITY] week ending Dec. 22 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= Extend gdbstub for SVE ([VIRT-281]) - posted [PATCH v4 00/21] gdbstub refactor and SVE support (+check-tcg tweaks) Message-Id: <20191220120438.16114-1-alex.bennee(a)linaro.org> [VIRT-281] <https://projects.linaro.org/browse/VIRT-281> GSoC Mentoring Afermath ([VIRT-348]) - started working on re-base of [TCG code quality tracking] - bit of a re-factor rethink required [TCG code quality tracking] <https://github.com/stsquad/qemu/tree/tcg/tbstats-and-perf-v10> Upstream Work ([VIRT-109]) ========================== - posted [PULL 00/25] testing and logging updates Message-Id: <20191219104934.866-1-alex.bennee(a)linaro.org> - posted [PATCH v1 0/4] semihosting read console support Message-Id: <20191218180029.6744-1-alex.bennee(a)linaro.org> - posted [PATCH v2 0/5] semihosting read console support Message-Id: <20191220132246.6759-1-alex.bennee(a)linaro.org> [VIRT-109] <https://projects.linaro.org/browse/VIRT-109> Completed Reviews [4/4] ======================= {PATCH} Semihost SYS_READC implementation (v6) Message-Id: <20191104204230.12249-1-keithp(a)keithp.com> - CLOSING NOTE [2019-12-18 Wed 19:39] Found some issues with deadlocks, fixed and sent my own series including this patch. Added: <2019-12-06 Fri> [PATCH] docker: gtester is no longer used Message-Id: <1576632611-55032-1-git-send-email-pbonzini(a)redhat.com> - CLOSING NOTE [2019-12-20 Fri 12:20] Queued to my tree Added: <2019-12-18 Wed> {Qemu-devel} {RFC PATCH} Implement qemu_thread_yield for posix, use it in mttcg to handle EXCP_YIELD Message-Id: <20190717054655.14104-1-npiggin(a)gmail.com> - CLOSING NOTE [2019-12-20 Fri 13:11] Replied. [PATCH v2 00/28] cputlb: Remove support for MMU_MODE*_SUFFIX Message-Id: <20191216221158.29572-1-richard.henderson(a)linaro.org> Absences ======== - Christmas and New Year holidays Current Review Queue ==================== * [RFC PATCH 00/13] hw/timer/allwinner: Make it reusable Message-Id: <20191219185127.24388-1-f4bug(a)amsat.org> Added: <2019-12-19 Thu> * [PATCH v2 00/14] chardev: Use QEMUChrEvent enum in IOEventHandler typedef Message-Id: <20191218172009.8868-1-philmd(a)redhat.com> Added: <2019-12-18 Wed> * [RFC PATCH v3 000/132] Proof of concept for Meson integration Message-Id: <1576155176-2464-1-git-send-email-pbonzini(a)redhat.com> Added: <2019-12-12 Thu> * {PATCH 0/2} tests/acceptance: Add boot vmlinux test Message-Id: <20191206140012.15517-1-wainersm(a)redhat.com> Added: <2019-12-06 Fri> -- Alex Bennée

5 years, 12 months

1
0
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[ACTIVITY] report week ending 20 Dec

by Peter Maydell

Progress (covers two weeks; lost half of last week to the cold that's been going around the office here): * VIRT-65 [QEMU upstream maintainership] - code review + RTH's ARMv8.2-UAO patchset + RTH's ARMv8.1-PAN patchset + had a look at Huawei SDEI patchset; there are some things I don't like about the approach but I don't currently have any better ideas :-( Sent an email to the list to see if others have any suggestions. + Andrew Jones' patchset to pause the virtual timer when VM is paused + Some smmuv3 emulation fixes from Amazon + Support for emulating generic timers that run at platform-dependent frequency (rather than insisting they always run at 62.5MHz) - release work + herded a handful of key bugfixes into rc5; got rc5 and then the final release out of the door + got new s390 box into the set of machines we test QEMU on (IBM want to turn off the old one at the end of the year) + a couple of arm pull requests now 5.0 is open for new contributions thanks -- PMM

5 years, 12 months

1
0
0 0

[ACTIVITY] 16 - 20 December 2019

by Diana Picus

== Progress == * LLVM 9.0.1 - Had trouble with our TK1 machine - Trying to build rc3 on one of the buildbots - AArch64 rc3 looks fine * Morello - Got lldb-server working on android and it seems to behave fine - Working on getting the lldb test-suite to work in remote mode with the morello android simulator - Running into all sorts of issues with it == Plan == * More of the same * Out of office: 25-26 December, 1-7 January

5 years, 12 months

1
0
0 0

PE/COFF arm64 bdf/binutils targets

by Dimitri John Ledkov

One cannot use objcopy --target=efi-app-aarch64 because it appears that PE/COFF targets are not enabled for aarch64. Making UEFI & Windows on Snapdragon work harder. Given that Windows 10 is fully supported on aarch64, I assume it does have PE/COFF. Can someone please fix bfd to provide PE targets on aarch64? -- Regards, Dimitri.

5 years, 12 months

1
0
0 0

[ACTIVITY] 16-20 Dec 2019

by Christophe Lyon

== Progress == * GCC: - -mpure-code on v6m: committed. - investigated potential problem with -mno-unaligned-access. It was a wrong-user-code case, but maybe it would be desirable to implement an option like llvm's -arm-assume-misaligned-load-store * BFD Linker: - GNU-629: non-contiguous memory support: Now able to detect cases where input sections change size during the linker iterations and when linker-created stubs would cause overflows. * GCC upstream validation: - reported/checked a few issues * misc: - infra fixes / troubleshooting / reviews == Next == * Binutils: GNU-629: support non-contiguous memory regions in linker * Holidays: Dec 23rd-Jan 2nd

5 years, 12 months

1
0
0 0

clang-cmake-armv7-selfhost build failure

by John McCall

There’s been an ongoing failure on the clang-cmake-armv8-selfhost builder for the last day or so; see e.g.: http://lab.llvm.org:8011/builders/clang-cmake-armv7-selfhost/builds/2827/ This list is recorded as the contact information for that builder. It is apparently crashing in a tblgen backend that I just added: ``` Stack dump: 0. Program arguments: /home/buildslave/buildslave/clang-cmake-armv7-selfhost/stage1/bin/clang-tblgen -gen-clang-type-writer -I /home/buildslave/buildslave/clang-cmake-armv7-selfhost/llvm/clang/include -I /home/buildslave/buildslave/clang-cmake-armv7-selfhost/llvm/clang/include/clang/AST -I /home/buildslave/buildslave/clang-cmake-armv7-selfhost/llvm/llvm/include /home/buildslave/buildslave/clang-cmake-armv7-selfhost/llvm/clang/include/clang/AST/TypeProperties.td --write-if-changed -o /home/buildslave/buildslave/clang-cmake-armv7-selfhost/stage1/tools/clang/include/clang/AST/AbstractTypeWriter.inc Segmentation fault (core dumped) ``` I would like to fix this, but I have no ability to reproduce it, and the crash information in the log is quite minimal. Is there a way I can get a shell on a system that can reproduce this, or at the very least get a line number for where exactly it is crashing? John.

5 years, 12 months

2
7
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[ANNOUNCE] Arm provided GNU 9.2-2019.12 A-profile cross-toolchain release

by Ashok Bhat

The Arm GNU Toolchain for the A-profile Architecture ===================================================== We are pleased to announce the Arm release of the pre-built GNU cross-toolchain for the A-profile cores: GCC 9.2-2019.12. Further information about the GNU Arm toolchain and the release packages is available at Arm Developer site https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads Features ======== * Based on GCC 9.2 (See https://gcc.gnu.org/gcc-9/changes.html for details). Supported targets ================= * On Windows(x86_64): - AArch64 (bare-metal and Linux) - AArch32 (bare-metal and Linux hard-float) * On Linux(x86_64): - AArch64 (bare-metal, Linux and Linux big-endian) - AArch32 (bare-metal and Linux hard-float) * On Linux(AArch64) - AArch64 (bare-metal) - AArch32 (bare-metal and Linux hard-float) Changes since Arm release GCC 8.3-2019.03 ========================================= * Additional AArch64 hosted cross-toolchains for AArch64 (bare-metal) and AArch32 (bare-metal and Linux hard-float) * Additional Windows hosted cross-toolchains for AArch64 (Linux) and AArch32 (Linux hard-float) * Retired Linux(x86_64) toolchain for AArch64 (big-endian bare-metal) and AArch32 (Linux soft-float) * Changed toolchain naming convention to match standard target triplet naming convention, with vendor name being none. For example, arm-eabi is now arm-none-eabi. * Fixed the Windows toolchain convention to correctly include mingw-w64 instead of mingw32 Host Requirements ================== * x86-64 Linux: Ubuntu 16.04 LTS or later, or RHEL 7 or later * AArch64 Linux: Ubuntu 18.04 LTS or later, or RHEL 8 * x86 Windows: Windows 10 Package Versions ================= * GCC 9.2.1 * glibc 2.30 * binutils 2.33.1 * GDB 8.3.0 * libexpat 2.2.5 * Linux Kernel v4.20.13 * libgmp 4.3.2 * libisl 0.15 * libmpfr 3.1.6 * libmpc 1.0.3 * libiconv 1.15 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/ IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.

5 years, 12 months

1
1
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[ACTIVITY] Week 50

by Yvan Roux

* One day off o LLVM: * Couple of failures with the bots * Machine Outliner: - Completed testcases - Validation before re-submission o Misc * Various meetings and discussions.

6 years

1
0
0 0

[ACTIVITY] week ending 15 Dec 2019

by Richard Henderson

[VIRT-327 # Richard's upstream QEMU work ] Following up on the feedback from last week on VHE and PAN, posted a patch set eliminating MMU_MODE*_SUFFIX, and the current limit of NB_MMU_IDX <= 12 that went with that. Some patch review. r~

6 years

1
0
0 0

[ACTIVITY] week ending Dec. 15 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= Extend gdbstub for SVE ([VIRT-281]) - posted [PATCH v3 00/20] gdbstub refactor and SVE support (+check-tcg tweaks) Message-Id: <20191211170520.7747-1-alex.bennee(a)linaro.org> GSoC Mentoring Afermath ([VIRT-348]) - started working on re-base of [TCG code quality tracking] - bit of a re-factor rethink required [TCG code quality tracking] <https://github.com/stsquad/qemu/tree/tcg/tbstats-and-perf-v10> Upstream Work ([VIRT-109]) ========================== - posted [PATCH] target/arm: ensure we use current exception state after SCR update Message-Id: <20191209143723.6368-1-alex.bennee(a)linaro.org> - posted [PATCH v2] target/arm: ensure we use current exception state after SCR update Message-Id: <20191212114734.6962-1-alex.bennee(a)linaro.org> - did and initial tyre kicking of rth's mmu_idx clean-up patches Completed Reviews [3/3] ======================= [PATCH] target/arm: Display helpful message when hflags mismatch Message-Id: <20191209134552.27733-1-philmd(a)redhat.com> [PATCH v2 0/2] gdbstub: allow sending packet of arbitrary length Message-Id: <20191211160514.58373-1-damien.hedde(a)greensocs.com> [PATCH 0/2] tests/acceptance: Add boot vmlinux test Message-Id: <20191206140012.15517-3-wainersm(a)redhat.com> Absences ======== - Christmas and New Year holidays Current Review Queue ==================== * {PATCH} Semihost SYS_READC implementation (v6) Message-Id: <20191104204230.12249-1-keithp(a)keithp.com> Added: <2019-12-06 Fri> * [RFC PATCH v3 000/132] Proof of concept for Meson integration Message-Id: <1576155176-2464-1-git-send-email-pbonzini(a)redhat.com> Added: <2019-12-12 Thu> * {PATCH 0/2} tests/acceptance: Add boot vmlinux test Message-Id: <20191206140012.15517-1-wainersm(a)redhat.com> Added: <2019-12-06 Fri> * {RFC PATCH 00/10} hw/avr: Introduce the Arduino board Message-Id: <20191128015030.27543-1-f4bug(a)amsat.org> Added: <2019-11-28 Thu> -- Alex Bennée

6 years

1
0
0 0

[ACTIVITY] 9-13 Dec 2019

by Christophe Lyon

== Progress == * GCC: - -mpure-code on v6m: waiting for approval, pinged again. * BFD Linker: - GNU-629: non-contiguous memory support: Looking at how to handle the case where input sections change size during the linker iterations. * GCC upstream validation: - reported/checked a few issues * misc: - infra fixes / troubleshooting / reviews == Next == * GCC: pure-code/v6m, handle feedback * Binutils: GNU-629: support non-contiguous memory regions in linker == Future == Holidays: Dec 23rd-Jan 2nd

6 years

1
0
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[ACTIVITY] Week ending 13th December 2019

by Peter Smith

Morello: - Updated clang driver to use lld with --image-base rather than a linker script. - LLD changes merged. - Fixed up a few problems spotted by CI and a test on the examples. - Thoughts on code sequences for an experimental descriptor based ABI. LLD: - Committed changes to fix branch patch and thunks interaction in instrumented Chromium build - Discussion about deploying BTI in large programs like Chromium with pre-compiled objects and lots of assembler files. Planned absences On holiday for the rest of the decade. First day back in the office 6th January

6 years

1
0
0 0

[ACTIVITY] week ending Dec. 8 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= Extend gdbstub for SVE ([VIRT-281]) - worked on [v3 rebase] - added a new test case and discovered a bug in upstream gdbserver - raised [GNU-647] to track it [v3 rebase] https://github.com/stsquad/qemu/tree/sve-registers-v3 [GNU-647] https://projects.linaro.org/browse/GNU-647 QEMU ARMv8.1 VHE ([VIRT_263]) ============================= - bunch of review and testing of rth's v4 series [VIRT_263] https://projects.linaro.org/browse/VIRT-263 Upstream Work ([VIRT-109]) ========================== - posted {PATCH v2 0/6} linux-user mmap debug cleanup Message-Id: <20191206110354.GA775461(a)stefanha-x1.localdomain> Completed Reviews [8/8] ======================= {PATCH 0/3} iotests: Check for the possibility to create large files Message-Id: <20191202101631.10003-1-thuth(a)redhat.com> - CLOSING NOTE [2019-12-03 Tue 10:14] Preparatory for the multiarch Travis tests. Added: <2019-12-02 Mon> {PATCH v2 0/2} Run tcg tests with tci on Travis Message-Id: <20191128153525.2646-1-thuth(a)redhat.com> - CLOSING NOTE [2019-12-03 Tue 10:21] will take v3 with --disable-kvm and sparc tweaks Added: <2019-11-28 Thu> {PATCH 0/2} flush CPU TB cache in breakpoint_invalidate Message-Id: <20191127220602.10827-1-jcmvbkbc(a)gmail.com> - CLOSING NOTE [2019-12-03 Tue 11:20] Needs a slightly neater solution than always flushing everything. Added: <2019-11-28 Thu> {PATCH 0/1} tests/vm: Allow to set path to qemu-img Message-Id: <20191114134246.12073-1-wainersm(a)redhat.com> - CLOSING NOTE [2019-12-03 Tue 11:37] Queued to my tree Added: <2019-11-14 Thu> {PATCH 0/4} docker: Update Travis-CI image to run acceptance tests Message-Id: <20190818231827.27573-1-philmd(a)redhat.com> - CLOSING NOTE [2019-12-03 Tue 16:03] Will wait for next iteration. {PATCH 0/4} python/qemu: New accel module and improvements Message-Id: <20191115180829.10275-1-wainersm(a)redhat.com> - CLOSING NOTE [2019-12-03 Tue 17:00] All looks good. I assume will be merged with another series that uses the new features. Added: <2019-11-28 Thu> {PATCH v7 0/8} Acceptance test: Add "boot_linux" acceptance test Message-Id: <20191104151323.9883-1-crosa(a)redhat.com> - CLOSING NOTE [2019-12-03 Tue 19:20] Broken for me with load_module failure Added: <2019-11-04 Mon> {PATCH v4 00/40} target/arm: Implement ARMv8.1-VHE Message-Id: <20191203022937.1474-1-richard.henderson(a)linaro.org> - CLOSING NOTE [2019-12-06 Fri 18:35] Reviewed about half the patch set, will do the remainder on v5 once Peter's comments are addressed. Added: <2019-12-03 Tue> Current Review Queue ==================== * {PATCH} Semihost SYS_READC implementation (v6) Message-Id: <20191104204230.12249-1-keithp(a)keithp.com> Added: <2019-12-06 Fri> * {PATCH 0/2} tests/acceptance: Add boot vmlinux test Message-Id: <20191206140012.15517-1-wainersm(a)redhat.com> Added: <2019-12-06 Fri> * {RFC PATCH 00/10} hw/avr: Introduce the Arduino board Message-Id: <20191128015030.27543-1-f4bug(a)amsat.org> Added: <2019-11-28 Thu> * {RFC 0/3} tests/vhost-user-fs-test: add vhost-user-fs test case Message-Id: <20191025100152.6638-1-stefanha(a)redhat.com> Added: <2019-10-25 Fri> -- Alex Bennée

6 years

1
0
0 0

[ACTIVITY] 3x3 for week ending 6th December 2019

by Peter Smith

Morello: - Static linking patches committed to merge branch. - Dynamic linking patches up for review. - Agreed definition of what LLD for stage-1 looks like. - Discussions on what linker and ABI work is likely to be needed for stage-2. Linaro: Some LLD thunk/patch generation problems https://bugs.llvm.org/show_bug.cgi?id=44071 for a gigantic build of Chromium > 260 Mb .text section on AArch64. Diagnosed problems but will need to fix next week. Some support for ClangBuiltLinux with respect to some integrated assembler compatibility with GNU as. Buildbot duty. Pretty quiet, attempted to reproduce some timeouts seen on the LNT generate cmake. 3 minutes on an lightly loaded machine, exceeding 20 minutes in some cases on the heavily loaded buildbot host. Seems to have resolved itself with the latest container update. - Some changes to BTI for the Android team. All committed upstream. -- Adding PT_GNU_PROPERTY support. -- Increasing alignment of .note.gnu.property section to 8. Holiday - On holiday from Monday 16th to 3rd January inclusive. Back in office January 6th.

6 years

1
0
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[ACTIVITY] report week ending 6 Dec

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] - code review (have had a go at cutting down the backlog; down to six patchsets in my queue...): + reviewed the 'clock framework API' patchset; this is looking good, the only major question to sort out is what the right internal representation for the clock frq/period is + Paolo's series to add kernel-doc support to our Sphinx setup (which is a mashup of something I hacked together ages ago and more recent work from him) + RAS memory error support for KVM guests (mostly reviewing the easy bits and noting that others have provided code review comments on the rest) + reviewed RTH's MemTag emulation series + reviewed the bits of RTH's VHE series that Alex hadn't got to + tested an arm/acpi patchset from Huawei from March which had unfortunately fallen through the cracks. It failed 'make check' so they'll need to fix and resubmit :-( - release work: + we needed an rc4 + and it looks like we'll need an rc5 for one last important bugfix; I'm hoping we can do an rc and then actual release a few days later, though thanks -- PMM

6 years

1
0
0 0

[ACTIVITY] 2-6 Dec 2019

by Christophe Lyon

== Progress == * GCC: - -mpure-code on v6m: waiting for approval, pinged again. * BFD Linker: - GNU-629: non-contiguous memory support: received some feedback. Looking at how to handle the case where input sections change size during the linker iterations. * GCC upstream validation: - reported/checked a few issues * misc: - infra fixes / troubleshooting / reviews == Next == * GCC: pure-code/v6m, handle feedback * Binutils: GNU-629: support non-contiguous memory regions in linker

6 years

1
0
0 0

[ACTIVITY] 2 - 6 December 2019

by Diana Picus

== Progress == * LLVM 9.0.1 - Trying to bisect the arm failures * Triaging check-lldb failures on AArch64 [LLVM-512] - Finished with the unexpected failures - There are still some unexpected passes, but Omair has agreed to look into them * Morello - Managed to build android and lldb-server, currently trying to see if I can get them to work together

6 years

1
0
0 0

coresight drivers access from syscall interface

by zied guermazi

hi,I started implementing GDB process record and replay with ARM CoreSight as described in the rfc published early this year. Current implementation of coresight tracing in Perf is based on the sysfs interface, by accessing /sys/bus/event_source/devices/cs_etm ... file. GDB implementation of bts and ipt is based on the syscall "sys_perf_event_open".it would be nice to use the similar mechanism for realizing similar functionalities. therefore I would like to know if linux kernel (with coresight deivers) is exposing coresight drivers through the syscall sys_perf_event_open and if this is the case how shall I configure the perf_event_attr to use it. thanks Zied Guermazi

6 years

2
1
0 0

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linaro-toolchain