o LLVM
* Buildbots babysitting
* LLVM Kernel CI babysitting
* Machine Outliner on ARM prototype still on-going
o Misc
* More Jira gardening
* Various meetings and discussions.
Upstream Work ([VIRT-109])
==========================
- reviewed {Qemu-devel} {RFC PATCH v2 0/7} QEMU binary instrumentation
prototype Message-Id:
<152819515565.30857.16834004920507717324.stgit@pasha-ThinkPad-T60>
- reviewed {PATCH 0/6} qht improvements for 3.1 Message-Id:
<20180817232923.28899-1-cota(a)braap.org>
- investigating CI failure in master:
- The [Travis builds have been broken for a while]
- meanwhile it looks like [atomic_8 issues have broken 32 bit
builds]
[VIRT-109] https://projects.linaro.org/browse/VIRT-109
[Travis builds have been broken for a while]
https://travis-ci.org/qemu/qemu/builds
[atomic_8 issues have broken 32 bit builds]
https://app.shippable.com/github/qemu/qemu/dashboard
Other Tasks
===========
- Continued working on "My Other Machine is Virtual" talk for YVR18
- finished main talk, iterating and practising now
- also made a few [fixes and enhacements for tlb tracking]
- Administrava
- caught up with expense claims for SynQuacer
- organising for KVM Forum 2018
[fixes and enhacements for tlb tracking]
https://github.com/stsquad/qemu/tree/misc/dfilter-and-trace-tweaks-v2
Completed Reviews [2/2]
=======================
{Qemu-devel} {RFC PATCH v2 0/7} QEMU binary instrumentation prototype
Message-Id: <152819515565.30857.16834004920507717324.stgit@pasha-ThinkPad-T60>
- CLOSING NOTE [2018-09-07 Fri 15:40]
Some interesting ideas but I think the interface needs to be a bit
richer and expose the tcg code generation to the plugins.
{PATCH 0/6} qht improvements for 3.1
Message-Id: <20180817232923.28899-1-cota(a)braap.org>
- CLOSING NOTE [2018-09-07 Fri 16:35]
Good improvements to test coverage, one minor tweak needed
{PATCH 0/6} target/arm: More sve-ish fixes
Message-Id: <20180810193129.1556-1-richard.henderson(a)linaro.org>
- CLOSING NOTE [2018-09-07 Fri 16:36]
Already in target-arm.next
{Qemu-devel} {PATCH 0/3} synchronization profiler
Message-Id: <20180813171132.21939-3-cota(a)braap.org>
- CLOSING NOTE [2018-09-07 Fri 17:41]
Already merged
Absences
========
- Holiday (16th-28th August 2018)
- YVR18 Connect (17th-21st September 2018)
- KVM Forum 2018 (24th-26th October 2018)
Current Review Queue
====================
* {Qemu-arm} {PATCH 00/15} gdbstub: support for the multiprocess extension
Message-Id: <20180901124639.19735-1-luc.michel(a)greensocs.com>
* {PATCH 0/6} i386 + x86_64 mttcg
Message-Id: <20180903171831.15446-1-cota(a)braap.org>
* {Qemu-devel} {PATCH v4 0/5} Acceptance/functional tests
Message-Id: <20180530184156.15634-1-crosa(a)redhat.com>
* {Qemu-arm} {PATCH 00/10} target/arm: Some pieces of support for 32-bit Hyp mode
Message-Id: <20180814124254.5229-1-peter.maydell(a)linaro.org>
* {PATCH 00/20} target/arm: sve system mode patches
Message-Id: <20180809042206.15726-1-richard.henderson(a)linaro.org>
* {PATCH v4 00/14} fp-test + hardfloat
Message-Id: <1528768140-17894-1-git-send-email-cota(a)braap.org>
--
Alex Bennée
[Linaro Connect]
- Wrote my presentation for the official track (on using Clang
libtooling and ASTMatchers)
- Started working on hackroom presentation on profile guided
optimisation in LLVM.
In both cases writing a presentation on something you don't know much
about forces you do a lot of learning.
Plans for next week:
- Finish hackroom presentation.
Spare time will be spent on reviews and llvm/clang bugs
=== Work done during this 3-day week ===
* TCWG-1428 (Support arithmetic on FileCheck regex variable):
+ continue to rework patch, feature complete and most testcase pass
+ sent another external email to hammer a few details
* Arm new starter welcome and related faff
* GNU Tools Cauldron + travel from Thursday to Sunday
=== Plan for week 37 ===
* TCWG-1428 (Support arithmetic on FileCheck regex variable):
+ fix last bugs, start testing and cleanup
* Try to reproduce perf issue mentioned in week #30's weekly report on
latest perf
* One day off
o LLVM
* Machine Outliner on ARM prototype:
- fixup and testcases work still on-going
- first benchmark results
* Buildbots babysitting
o Misc
* More Jira gardening
* Various meetings and discussions.
Other Tasks
===========
- Continued working on "My Other Machine is Virtual" talk for YVR18
- got working heatmaps for coverage
- writing up TCG memory tracing
Absences
========
- Holiday (16th-28th August 2018)
- YVR18 Connect (17th-21st September 2018)
- KVM Forum 2018 (24th-26th October 2018)
Current Review Queue
====================
* {PATCH 0/6} qht improvements for 3.1
Message-Id: <20180817232923.28899-1-cota(a)braap.org>
* {Qemu-devel} {PATCH 0/3} synchronization profiler
Message-Id: <20180813171132.21939-3-cota(a)braap.org>
* {PATCH 0/6} target/arm: More sve-ish fixes
Message-Id: <20180810193129.1556-1-richard.henderson(a)linaro.org>
* {Qemu-arm} {PATCH 00/10} target/arm: Some pieces of support for 32-bit Hyp mode
Message-Id: <20180814124254.5229-1-peter.maydell(a)linaro.org>
* {PATCH 00/20} target/arm: sve system mode patches
Message-Id: <20180809042206.15726-1-richard.henderson(a)linaro.org>
* {PATCH v4 00/14} fp-test + hardfloat
Message-Id: <1528768140-17894-1-git-send-email-cota(a)braap.org>
--
Alex Bennée
* very short week: off Monday/Tuesday
== Progress ==
* FDPIC
- uClibc-ng: patches committed upstream
- GCC: handling feedback on v2 patches
* GCC upstream validation:
- trunk build broken for a while on RHEL6 (gcc-4.4.7)
- fixed upstream just before I reported the problem
- my scripts now use gcc-5.4.0
* misc (conf-calls, meetings, emails, ....)
- book hotel/plane for GNU Cauldron and Connect
== Next ==
FDPIC:
- GCC: handle v2 patches feedback
- uclibc-ng: look at how to test fdpic mode with openadk
- Connect: prepare hacking room presentation
- GNU Cauldron 2018
=== Work done during this week ===
* TCWG-1379 / GCC PR85434 / CVE-2018-12886: rework needed
+ finished testing and submitted for external review
* TCWG-1428 (Support arithmetic on FileCheck regex variable): address comments
+ continue to rework patch
* Regression testing of LLVM release process:
+ Add support to build from a branch (incl. trunk)
+ Make weekly regression testing from trunk
+ start enabling regression testing of Linaro LLVM release process
when scripts it use change
* Prepare for becoming a line manager next week
=== Plan for week 36 ===
* Welcome new starter
* Finish enabling regression testing of Linaro LLVM release process
when scripts it use change
* DSGHACK-25 (Support arithmetic on FileCheck regex variable): address comments
+ continue to rework patch
* Try to reproduce perf issue mentioned in week #30s weekly report on
latest perf
[VIRT-249 # SVE system mode emulation ]
Fixed a bug in last week's reorg, reported by Laurent.
Fixed a bug in our risu scripts for generating sve memory ops;
I was able to replicate Laurent's failure in risu, finally, and
then fix it. Still need to clean up the risu patch for submission.
[Upstream]
Reviewed mips mxu tcg patch set.
Reviewed s390 afp tcg patch set.
r~
== This Week ==
* TCWG-1234: Hoisting and register pressure (4/10)
- Came up with another heuristic to avoid spill
- Verified it does not regress other test-cases (testsuite + private benchmarks)
* TCWG-319: Use vrecpe / vrecps to implement division (1/10)
- Rebased patch and validated it
- Seems like the issue of bad data alignment is also now seen with
armhf. Investigating
it further.
* PR83661 (2/10)
- Finished with patch prototype
* Public Holiday (2/10)
* Misc (1/10)
- Committed a typo fix in r263819
- Meetings
== Next Week ==
- Continue ongoing tasks
