~ Progress ~
* AArch64 OpenOCD. TCWG-947, [2/10]
After asking Peter G. about OpenOCD + Hikey, he sent me his working
Hikey+Cable to me.
* SVE GDB patches review. TCWG-1040, [4/10]
Review some patches, and suggest Alan how to split the patch to easily
make some progress.
Think about the needed change to GDB target description.
* Kernel awareness debugging patch review. [2/10]
Manage to write a small test case so that we can somehow test the new
feature in user space in gdb testsuite.
Think about how does Linaro move on about this project.
* Schengen visa application. [2/10]
Visa application centre doesn't accept my documents because my documents
copy are tow-side printed. Has to book another appointment and go to
London again .
~ Plan ~
* TCWG-947, Try opencod with Peter G.'s board.
* TCWG-1040, prototype of new GDB/GDBserver target description.
--
Yao Qi
== Progress ==
* Validation
- more work on use of containers
* GCC
- reported a few failures upstream
- added a few missing poly64_t intrinsics (arm, aarch64)
* misc (conf-calls, meetings, emails, ....)
== Next ==
* ABE & Jenkins jobs patches reviews and bug fixes
== This Week ==
* gimple-fe (4/10)
a) Add support for abs_expr
b) Add support for fma_expr
* TCWG-1010 (4/10)
- Continue working on prototype, dealing with unexpected ICE's :(
* Misc (2/10)
- Reading up on gcc's inliner
- Meetings
== Next Week ==
- TCWG-1010, TCWG-1005, gimple-fe
- Benchmarking LTO using spec2xxx-utils on tx1/tk1
=== This Week ===
LLDB ARM/AArch64 hardware breakpoints [TCWG-717] [9/10]
-- Submitted AArch64 hardware breakpoint patch for review.
-- Updates after upstream comments.
-- Added Arm hardware breakpoint support code.
-- Testing and debugging of Arm code on android arm device.
Miscellaneous Activities [1/10]
-- Meetings, Emails etc.
=== Next Week ===
LLDB ARM/AArch64 hardware breakpoints [TCWG-717]
-- Write breakpoint command based test-cases.
-- Write RSP packets based test-cases.
-- Submit patch for review after edits and upgrades.
GDB Kernel Awareness
-- Background study and understand existing patches
== Progress ==
[TCWG-617] Upstreamed a patch to make copy relocations use synthetic
sections. This allows us to remove the output section relative dynamic
relocation which is important for range extension Thunks
Did some design work for range extension Thunks.
Did some refactoring to merge PLT and IFunc PLT at maintainers request
[BUD17]
Researched my forthcoming Connect presentation and wrote about 3/5 of the slides
== Plan ==
Finish Connect presentation early next week as I'll be on holiday the
week before Connect.
Start implementing range extension Thunks.
== Progress ==
* [ARM GlobalISel] Add support for fp arguments [TCWG-1029] [5/10]
- Committed support for single precision hard float and soft-fp ABIs
- Work in progress on supporting double precision
* Misc [5/10]
- Meetings, mailing lists, code reviews
- Reverted / fixed a few patches that broke the buildbots
- Tested and uploaded binaries for release candidate 2 on AArch64
== Plan ==
* More GlobalISel
Hi All,
I am working on log10/qsort benchmarks on ARM64 (ARMv8) processor,
I want to check if we have experience with these benchmarks.
Actually i am looking for a compiler version which gives best results with
these benchmarks and specific compiler optimization (in my case is see O3
gives best numbers) ?
I have tried GCC-4.9 and GCC-6.2 with log10 benchmark and my observations
are:
1) With gcc 4.9 - 140 us
2) With GCC 6.2 - 150 us
My compilation flags are "-O3 -ftree-vectorize -funroll-all-loops --param
max-inline-insns-auto=550 --param case-values-threshold=30
-falign-functions=32 -ftracer"
So it seems like gcc-6.2 is better, am i missing something, should i use
some better compiler flags?
Thanks
-Bharat
~ Progress ~
* AArch64 OpenOCD. [6/10]
Solder and desolder the JTAG joint on HiKey. Tried different JTAG
options, but still can't get OpenOCD working.
* Patches review. [3/10]
** ILP32 GDB. Help cavium to reduce fails from 500 to 70.
GDB patch is OK, but there are still some regressions on ilp32
vs. lp64 on aarch64. Steve is still investigating on them.
** SVE GDB. Remove MAX_REGISTER_SIZE. Look people tend to agree
the way removing MAX_REGISTER_SIZE. Looking forward to Alan's
patches :)
** Kernel awareness debugging. Reviewed the cover letter of IBM's
patches. Want to share the common kernel debugging part between
IBM and Linaro.
* Schengen visa. [1/10] Fill in more in application form. Document
preparation.
~ Plan ~
* Kernel awareness debugging. Continue reviewing IBM's patches, and
figure out how to share the code.
* Go to London for visa application on Friday.
--
Yao Qi
