o LLVM
* Machine Outliner on ARM prototype:
- stack fixup support on-going
- test coverage in machine IR
* Buildbots babysitting
o Misc
* Jira gardening
* Various meetings and discussions.
[VIRT-198 # QEMU: SVE Emulation Support ]
Adjusted patch set based on Peter's review and upstreaming.
We talked about a method to initialize cpu config registers.
[Upstream]
Review:
nanomips round 11, now mostly pushed to master.
MPS2 patch set
raspi frame buffer patch set
Partway through a round 6 of the do_syscall split.
r~
Investigated yet another sanitizer related buildbot failure. This time
it looks like latent problems in the compiler-rt/cfi implementation
and tests provoked by the introduction of the Arm LLD bot.
- cfi requires LTO so it requires a bot using LLD or a bot configured
to run gold with the LTO plugin. Raised upstream PR on cfi.
[Linaro Connect]
Made some more progress on a clang-tool example to use for my
presentation on how to build a clang tool. Learned quite a bit more
about ast-matchers and the clang-ast.
[LLD]
Committed support for Armv5 and Armv6 in LLD.
[Miscellaneous]
Quite a heavy patch review week.
Planned absences:
On holiday on Tuesday
Progress:
* VIRT-65 [QEMU upstream maintainership]
+ put some reviewed MPS device patches into master, did a v2 of the
rest and sent them out again; these are now in master
+ ditto with patches for missing AArch32-Hyp features
+ code review:
- rth's patchset fixing float/int-with-scaling conversion
- rth's patchset adding system mode support for SVE
- linux-user: netlink fixes
+ sent out a patchset that wires up the GICv2 virtualization
memory regions and IRQs on the remaining boards that need it;
got this into master
thanks
-- PMM
Note: annual leave tomorrow and Friday, as per my calendar
=== Work done during 3-day week ===
* TCWG-1379 / GCC PR85434 / CVE-2018-12886: rework needed
+ fix 2 more issues with retesting each time
* More knowledge transfer within Arm (writing a script to automate manual
task in GNU Arm Embedded Toolchain release to allow others to do it)
* TCWG-1428 / DSGHACK-25 (Support arithmetic on FileCheck regex variable):
address comments
+ continue to rework patch
* Enable weekly regression testing of LLVM release process jenkins job
* 2 days off annual leave
=== Plan for week 35 ===
* Enable regression testing of Linaro LLVM release process when scripts it
use change
* TCWG-1428 / DSGHACK-25 (Support arithmetic on FileCheck regex variable):
address comments
+ continue to rework patch
* TCWG-1379 / GCC PR85434 / CVE-2018-12886: rework needed
+ submit for external review
* Try to reproduce perf issue mentioned in week #30s weekly report on
latest perf
[VIRT-198 # QEMU: SVE Emulation Support ]
Fixed a double-rounding bug affecting scaled conversion
from integer to float.
[Upstream]
Posted a proposed fix for 128-bit atomic detection.
Posted v4 of linux-user syscall split.
Review of nanomips, round 9.
r~
* One day off
o GNU
* Committed Linaro version string and macros patch in ARM GCC 8 vendor branch
o LLVM
* libcxxabi exception address alignment test failure:
- Committed in trunk and merged into 7.0 branch
* Machine Outliner on ARM prototype:
- LR saving and stack fixup support on-going
* Buildbots babysitting
o Misc
* Jira gardening
* Various meetings and discussions.
Note: I'll be on holidays Thursday and Friday next week.
=== Work done during 3-day week ===
* TCWG-1379 / GCC PR85434 / CVE-2018-12886: rework needed
+ heavy testing
* TCWG-1337 / LLVM PR34170: get backport to LLVM 7 branch
* create design review for -mfpu=auto option in GAS
-> https://confluence.arm.com/display/CTP/Auto+FPU+for+GNU+as
* Knowledge transfer within Arm
* Misc:
+ GCC Linaro sync
* 2 days off taking care of my feverish child
=== Plan for week 34 ===
* Enable regression testing of Linaro release process
* TCWG-1428 (Support arithmetic on FileCheck regex variable): address
comments
+ continue to rework patch
* TCWG-1379 / GCC PR85434 / CVE-2018-12886: rework needed
+ investigate aarch64 glibc regression
* Try to reproduce perf issue mentioned in week #30s weekly report on
latest perf
4 day week, out on holiday Wednesday.
[TCWG Jira]
- Recommendations made on what to do with outstanding epics.
- Will be making the changes on Monday.
[Linaro Connect]
- Research for presentation on libtooling.
- Outline of presentation written and made a start on the first of the examples.
- Will be doing a further presentation in the hack-room on LLVM
profiling and code-size
Involved in more than the usual amount of reviews.
Progress:
* VIRT-65 [QEMU upstream maintainership]
+ got 3.0 release out of the door!
+ code review:
- lots of Cortex-M0 and micro:bit patches
- model of Freescale i.MX6 UltraLite 14x14 EVK Board
- hw/arm: make bitbanded IO optional on ARMv7-M
- imx_spi: Unset XCH when TX FIFO becomes empty
- hw/arm/mps2-tz: Replace init_sysbus_child() with sysbus_init_child_obj()
- imx_serial: Generate interrupt on receive data ready if enabled
- target/arm: Fix crash on conditional instr in it block
- supporting migration of pending-SError state in KVM
+ sent a patchset deleting the now-obsolete MMIO request_ptr APIs
+ some tidyup of JIRA issues
+ trying to add a SPARC box back into our build-and-test set
thanks
-- PMM
