[ACTIVITY] 22 - 26 May 2017

[Yao Qi]

# Progress #
* GDB 8.0 release. TCWG-1050, [1/10]
Blocked by one MingW build issue. Should be the last one.

* gdb and objdump disassembler unification. [3/10]
Patches are approved. Rebase them, re-test them, and push them in.
Clean up some leftovers.

* GDB target description changes. [5/10]
Finish the design in GDBserver. Finish the prototype of both GDB and
GDBserver. Re-org them to some extent.

* GDB crossbuild w/ docker. [1/0]
Inspired by QEMU build, take a look docker and think about how to use
docker to build/test GDB for different targets.

# Plan #

* Holiday, and back to office on 6th June.
* Post RFC v2 on GDB target description changes.
* Upstream the patches of clean up to gdb and objdump disassembler
unification.

[Diana Picus]

== Progress ==

* Bank holiday on Thursday [2/10]

* [ARM GlobalISel] Add support for struct / array args [TCWG-1033] [5/10]
- The array stuff is ready to commit, but SVN was down this morning
so I'll commit next week

* [GlobalISel] Run precommit for Daniel's patch [TCWG-1142] [2/10]
- Ran precommit both manually and in Jenkins
- Had some trouble with Jenkins and with the patch (it was based on
the wrong revision)
- In the end it was still too slow, so I'll probably get another
patch next week

* Misc [1/10]
- Meetings, mailing lists, buildbots

== Plan ==

* [ARM GlobalISel] Add support for struct / array args [TCWG-1033]
- Finally commit this thing!

* Add "push" capability to helper scripts [TCWG-1141]
- This will be useful for working with Jenkins

[Peter Smith]

Progress

- Long range thunks
Made some more progress on the refactoring needed to merge the
representations for the script and non-script cases. Close to getting
the .ARM.exidx sections converted.
- Some thoughts on https://reviews.llvm.org/D33436 to do with
ARM/Thumb interworking in the assembler.
-- Discovered that gold and lld get the case of a relocation to a
Thumb non STT_FUNC symbol with bit 0 clear wrong. Both linkers attempt
to interwork (they shouldn't as the symbol is not STT_FUNC) but
identify the symbol as ARM due to bit 0 being clear. Luckily these are
corner cases only brought up by hand-written assembler.

- Investigation into https://bugs.llvm.org/show_bug.cgi?id=33136
libc++ failing ~100 tests with std::bad_cast exception when built in
release mode (clean upstream build uses debug).
-- Reduced failing test to std::cout << std::endl; the std::bad_cast
comes from an out of range index into a vector of available locales.
-- Current thought is that this could be a codegen bug as I can only
reproduce in Release (-O3) and not RelWithDebInfo (-O2).

Plans for next week:
- Long range thunks
Make more progress on refactoring. Should get .ARM.exidx patches
upstream, next step to convert long range thunks themselves.
- Work on diagnosing PR33136.