Hello,
# TCWG Infrastructure
- Reviewed a bunch of Gerrit requests for our CI scripts.
- Finished job definition to run fast_check_{gcc,gdb} jobs triggered by
new Gerrit review requests for jenkins-scripts, benchmark scripts and
ABE. Sent Gerrit review request and now working on 2nd version.
- Rebased our DejaGNU debug patches to upstream dejagnu-1.6.3, tested
result and sent Gerrit review request for it.
# TCWG CI — GDB
- Confirmed regression found by CI job¹ and mentioned by Maxim. Found
out that it was fixed upstream already².
--
Thiago
¹ https://ci.linaro.org/job/tcwg_gnu_native_check_gdb--master-aarch64-bisect/…
² https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=5a6ad5c775a58367…
Progress (another short week, May is full of bank holidays :-)):
* UM-2 [QEMU upstream maintainership]
- usual background level of code review etc
- investigated a bug reported by Mozilla where people running x86 Firefox
on QEMU on Arm hardware were seeing crashes; narrowed down the cause
(aided by Mozilla kindly providing a minimal repro test case),
and Paolo produced a fix.
* QEMU-530 [QEMU ARM v9.4 Baseline CPU for TCG]
- Started looking at what is required for FEAT_MOPS (the
memcpy/memset/memmove insns), what they do and how QEMU ought
to implement them.
- The new insns are in the load/store part of the A64 instruction
space. To make this easier to do, we should really convert at
least the integer parts of the A64 decoder to decodetree (a
refactoring we've been putting off for a long time). Started on
the conversion: sent out a first 20-patch patchset that converts
the dp-immediate and branch insns.
-- PMM
Progress (combines two weeks):
* UM-2 [QEMU upstream maintainership]
- investigated various failures of avocado tests on s390x host.
These are at least four different unrelated endianness bugs in
different device, board or CPU models. Sent out a set of patches
fixing at most of these.
- TCWG / Arm syncup meeting
- Linaro Connect
- caught up on code review and sent a target-arm pull request
- sent patch fixing a bug where our PNG screenshots have the pixel
colour channels in the wrong order
- while I had a conversation from Connect fresh in my mind, went
back and re-looked at the page-table-walk bug with handling the
NSW/SW bits that I sent patches for a couple of weeks ago. Re-did
the code to consistently handle these bits in the right place and
sent out another version of the patchset
- reviewed a very large patchset from RTH that changes how
TCG handles atomic accesses so we can implement FEAT_LSE2
- investigated a bug report about a regression with AArch32 EL1
under an AArch64 EL2; wrote patch
-- PMM
Hello,
# TCWG Infrastructure
- Reviewed a bunch of Gerrit requests for our CI scripts.
- Learning Jenkins job builder syntax and working on a job definition to
run fast_check_{gcc,gdb} jobs on Gerrit review requests for
jenkins-scripts and ABE.
- Changed CI scripts to save ABE and component testsuite logs when the ABE
build or check step fails. This should help debug a case where a GDB CI
job failed due to (probably) a corruption of the gdb.sum testsuite
result file.
# Misc
- Some preparations for the trip to Linaro Connect.
--
Thiago
Progress:
* UM-2 [QEMU upstream maintainership]
- sent out v3 of the 'deprecate singlestep option' patchset
- sorted out the draft QEMU Summit invite list and invitation text
- spent some time trying to understand how the imx SoCs arrange
their ethernet controllers and PHYs so I can review a patchset
- sent patch fixing minor configure nit where it wasn't honouring
--cross-prefix for the ObjC compiler
- got the 8.0 release out of the door and handed over merge handling
to rth
- sent some patchsets updating a few old .txt files to reStructuredText
- still thinking about our page-table-walk code -- I'm not convinced
it's doing the right thing with NSW/SW bits, even after last
week's patchset...
-- PMM
Hello,
# TCWG Infrastructure
- Fixed problem in ABE with MinGW build of GDB's master branch.
- Fixed problem in upstream GDB with MinGW build of GDB's master branch.
- Analysed backlog of failed check_gdb jobs.
- A couple of "misbisected" commits, including one pointing to a glibc commit.
- One detected regression also noticed by Christophe, and fixed by the community.
- One Arm failure that passes on QEMU TCG.
- Reviewed a number of Gerrit requests about improving ABE and CI scripts.
--
Thiago
Progress:
* UM-2 [QEMU upstream maintainership]
* trying to get a release out of the door -- due among other things
to the Easter holiday weekend, rc4 is a bit late and has rather
more changes than I would prefer
* more triaging of Coverity issues
* sent a few trivial bug fix patches
* started reviewing and queueing arm patches for 8.1
* investigated a FEAT_SEL2 bug that showed up with some proposed
changes to TF-A/Hafnium. The architecture and QEMU's code
are pretty hairy in this area but I think I have identified
the correct fix...
-- PMM
Hello,
[GNU-796] Stabilize GDB testsuite results in the CI
- Submitted to GDB mailing list and committed patches fixing the
gdb.asm/asm-source.exp regression found by the check_gdb job. Turned out
to be a small bug in the stabs debug format support.
- Committed Gerrit review request disabling Python on MinGW cross builds.
[GNU-767] Support changing SVE vector length in remote debugging
- Investigating a follow-up question Simon asked during review of the
patch series fixing a corner case when reading auxv from multi-threaded
inferiors.
--
Thiago
