[Morello]
- LLD finished pre-review refactoring and splitting up into reviewable chunks
- Implemented range-extension and interworking thunks to test
interaction with aligning .text to comply with Cheri Concentrate
- Answered some questions from Linaro tech-leads about Morello
Plans
- Rebase once CUCL merge has been completed and submit for review.
Planned Absences:
Christmas Holiday 16th December - 3rd January inclusive
Progress:
* VIRT-65 [QEMU upstream maintainership]
- code review:
+ Marc-Andre's series trying to get rid of QOM pointer properties
+ various minor bits for rc2
- unsuccessfully tried to work out why one of QEMU's test
cases asserts on BSD hosts only
- some time consumed by office-move
thanks
-- PMM
== Progress ==
* Triaging check-lldb failures on AArch64 [LLVM-512]
- Opened 4 bug reports
- One of them got a lot of attention so I was asked to upload more
logs/try various things
- Still have a couple of test failures to look into
* Morello
- First contact with the team
- Started looking at the internal docs
- Trying to build the existing toolchain
== Plan ==
* Figure out the current state of LLDB for Morello and what needs to be done
* Continue triaging LLDB failures
Dear Linaro,
Dear Linaro I'm using arm cortex A53 (mt6735 [part number]). But I do not know which tool-chain I have to use. I found your website https://www.linaro.org/downloads/ on internet. and my guess is aarch64-linux-gnu. can you please guide me through selecting a proper tool-chain.
Regards,
Saeed Djamali
# Progress #
o Upstream GDB
* More patch reviewing and answering questions.
o GDB:
* GNU-644 - [GDB, AArch64] gdb.base/step-over-syscalls.exp failures
- Managed to track this down all the way to the aarch64
single-stepping infrastructure in the kernel. Created reproduction steps
and sent an e-mail to linux-arm-kernel
- Also noticed a difference in the order in which SIGCHLD's are
delivered between x86_64 and aarch64. This confused GDB, which expects
the ordering it sees on x86_64. Working on a fix.
* Tweaked QEMU setup a little for SVE testing
* GNU-645 - gdbserver is not using SVE register descriptions properly
- Tracked down why gdbserver is not sending SVE register data back
to GDB. Working on a fix.
* GNU-170 - GDB BZ #21221 - gdb hangs while stepping an empty loop
- On hold for now.
# Plan #
o GDB
* GNU-644 - [GDB, AArch64] gdb.base/step-over-syscalls.exp failures
- Continue working on a fix.
* GNU-645 - gdbserver is not using SVE register descriptions properly
- Continue working on a fix.
[VIRT-262 # ARMv8.1-PAN Privileged Access Never]
Started, based on VHE patch set due to mmu_idx reorg therein.
Needs some minor re-work to handle Secure EL1.
[VIRT-273 # ARMv8.2-ATS1E1, AT S1E1R and AT S1E1W instruction variants ]
Started.
[VIRT-327 # Richard's upstream QEMU work ]
Some soft-freeze bug fixing of stuff that I broke this cycle.
Some patch review.
[Kernel]
Posted v7 of the ARMv8.5-RNG patch set. There's some significant
mis-communication going on between me and Mark Rutland; I have no
idea what he wants at this point...
[GCC]
Committed the base asm-flags patch set. Posted a follow-up
to un-break thumb1, and add tests for it.
r~
== This Week ==
* GCC
- PR89007: Posted patch upstream.
- GNU-583: Worked with Kugan, to reproduce LTO failure and verified
his patch fixes it.
- Bug 5479: Investigated with Maxim, most likely a glibc issue.
* Validation:
- Posted abe patch to add --gcc_patch_file option.
== Next Week ==
- Continue ongoing tasks.
Monday off
== Progress ==
* GCC:
- -mpure-code on v6m: answered questions about my patch. Almost OK
* Linker:
- started looking at implementing non-contiguous memory support
* GCC upstream validation:
- reported several issues
* misc:
- infra fixes / troubleshooting / reviews
== Next ==
* GCC: pure-code/v6m, handle feedback
* Binutils: support non-contiguous memory regions in linker
[Morello]
- Dynamic linking implementation complete and tests written based on
GNU ld output.
- Good progress on refactoring the work prior to breaking it down into
reviewable chunks. Have got a good idea of what I'd like the
implementation to look like.
TODO:
- Finish refactoring patches.
- Rebase into reviewable patches.
- Document the design decisions.
- Test on more than just the examples in the toolchain.
- Rebase on top of latest CUCL drop when merge is finished.
[Other]
LLVM-MC upstream review for the Linux Kernel.
