QEMU Tooling ([VIRT-252])
=========================
QEMU plugin support ([VIRT-280])
- more work on [v4 branch] but cutting it too fine for 4.1
- reworking the memory tracing to track mmu_idx
- hope to have v4 posted on Monday if I can squash the bugs
- the plugin call isn't getting the full TCGMemopidx (maybe only
TCGmemop?)
- some interest on list from HW manufacturers
[VIRT-280] https://projects.linaro.org/browse/VIRT-280
[v4 branch] https://github.com/stsquad/qemu/tree/plugins/plugins-v4
GSoC Mentoring ([VIRT-348])
- reviewed {Qemu-devel} {PATCH v2 0/4} dumping hot TBs Message-Id:
<20190624055442.2973-1-vandersonmr2(a)gmail.com>
- worked up some [suggestions for HMP interface and refactoring]
- first evaluation period work
[VIRT-348] https://projects.linaro.org/browse/VIRT-384
[suggestions for HMP interface and refactoring]
https://github.com/stsquad/qemu/tree/review/hotblocks-v2-tweaks
Upstream Work ([VIRT-109])
==========================
- posted {PULL 00/19} testing/next (tests/vm, Travis and hyperv build
fix) Message-Id: <20190624134337.10532-1-alex.bennee(a)linaro.org>
- bit late, will wait until pm215 returns
[VIRT-109] https://projects.linaro.org/browse/VIRT-109
Other
=====
- booking flights for Connect
- submitted a talk for KVM Forum (plugins)
Completed Reviews [2/2]
=======================
{Qemu-devel} {PATCH v2 0/4} dumping hot TBs
Message-Id: <20190624055442.2973-1-vandersonmr2(a)gmail.com>
- CLOSING NOTE [2019-06-27 Thu 12:39]
Made a bunch of notes and [tweaks]
[tweaks]
https://github.com/stsquad/qemu/tree/review/hotblocks-v2-tweaks%0A
{PATCH} Makefile: Rename the 'vm-test' target as 'vm-help'
Message-Id: <20190531064341.29730-1-philmd(a)redhat.com>
- CLOSING NOTE [2019-06-27 Thu 12:40]
Queued to my tree
Absences
========
- June 21st
Current Review Queue
====================
* {Qemu-devel} {PATCH 0/4} Introduce the microvm machine type
Message-Id: <20190628115349.60293-1-slp(a)redhat.com>
* {PATCH 0/3} tests/acceptance: Add tests for the Leon3 board
Message-Id: <20190627115331.2373-1-f4bug(a)amsat.org>
* {PATCH 0/5} tests/acceptance: Add bFLT loader linux-user test
Message-Id: <20190625101524.13447-1-philmd(a)redhat.com>
* {PATCH v2 0/9} KVM: arm/arm64: vgic: ITS translation cache
Message-Id: <20190611170336.121706-1-marc.zyngier(a)arm.com>
* {Qemu-devel} {RFC PATCH 0/7} Proof of concept for Meson integration
Message-Id: <1560165301-39026-1-git-send-email-pbonzini(a)redhat.com>
* {PATCH 00/59} KVM: arm64: ARMv8.3 Nested Virtualization support
Message-Id: <20190621093843.220980-1-marc.zyngier(a)arm.com>
--
Alex Bennée
== Progress ==
* GCC:
- FDPIC: No progress, still waiting for feedback
- noinit attribute: no feedback yet
* GNU-583 (Fix Linux kernel built for Thumb-2 with GCC using LTO)
- managed to reproduce similar error messages
* GCC upstream validation:
- reported a few regressions.
* Binutils:
- PR24709 (linker crash and assertion failure with CMSE). CMSE stubs
do not support long branches. Tried two approaches, but didn't find a
solution yet
- resurrected a thread about non-contiguous memory regions support in
the BFD linker
* misc:
- reported regressions in qemu, found with the GCC testsuite
- infra fixes / troubleshooting
== Next ==
GCC:
- handle feedback on FDPIC and noinit patches
- binutils/PR24709
- GNU-583
== Progress ==
* [GlobalISel] Refactor CallLowering [LLVM-568]
- Committed upstream
* [ARM GlobalISel] Add support for integers > 32 bits wide [LLVM-310]
- In progress
* LLVM SPEC2k6 Performance Analysis [LLVM-134]
- Got some results with clang-3.9.1 and clang-8.0.0, trying to work
around a perf annotate issue so I can investigate
== Plan ==
* Continue with these
* Friday off
== Progress ==
* FDPIC
- GCC: No progress, still waiting for feedback
* GCC upstream validation:
- reported a few regressions.
* GCC:
- noinit attribute: no feedback yet
* Binutils:
- started looking at PR24709 (linker crash and assertion failure with CMSE)
* misc:
- ABE: pushed fix to glibc-2.29+ builds, tcwg-backport job now works again
- forwarded GCC/Linaro bug #5314 to upstream; quickly fixed by richi
- looked at a couple of old Jira cards. Not sure how to resume work on
GNU-583 (Fix Linux kernel built for Thumb-2 with GCC using LTO)
== Next ==
GCC:
- handle feedback on FDPIC and noinit patches
- binutils/PR24709
o 4 days week (1 training day)
o LLVM:
* 8.0.1-rc2: ARM and AArch64 binaries built and uploaded.
* Buildbots babysitting: couple of issues reported.
* Machine Outliner:
- Adding testcases before upstream submission.
o Misc
* Various meetings and discussions.
== Progress ==
* Out of office on Friday (bank holiday)
* [GlobalISel] Refactor CallLowering [LLVM-568]
- Patches upstream
* [ARM GlobalISel] Add support for integers > 32 bits wide [LLVM-310]
- Started looking into call lowering for 64-bit types
* LLVM SPEC2k6 Performance Analysis [LLVM-134]
- Trying to reproduce results from Connect, hit a little snag with Jenkins
== Plan ==
* Continue with these
[LLVM-542] Build Zephyr with clang
- Spent quite a bit of time working out why a Clang built zephy hello
world wouldn't boot, tracked down to a missing clobber list in an
inline assembly block
- Wrote some scripts to collect code size information on the samples.
Some initial figures on mostly cortex-m3 put llvm -Oz trunk about 2%
larger than arm-none-eabi-gcc (9.1.1) -Os with frame pointers
disabled. The samples are making very little use of the library
(newlib built with arm-none-eabi-gcc).
- Working out which samples will build with cortex-m0.
- Investigated latest version of bloaty mc bloat face a code size tool
from Google. Has some interesting features including an inline
detection feature that can map a portion of a function's code size to
inlined functions.
Misc:
LLD reviews and mailing list comments.
Planned Absences:
Likely to take some holiday around 13th July
Week ending 23 June is very short.
* Patch review
- target/ppc vsr cleanup
- target/tricore translator loop conversion
- target/arm vfp decodetree cleanup
- cortex-strings strrchr fix
- continuing on the plugin api
* Xilinx meeting
* Fix qemu assert for clyon
- Found two other bugs in the process.
* Debugging my own USHR/SSHR patch vs aa32.
r~
