== Progress ==
* Upstream GCC (8/10)
- vector cost (TCWG-779)
- benchmarking complete and analysed
- Committed after full testing (bootstrap and regression testing)
- Started working on widening pass based on review comments (TCWG-555)
- Completed re-factoring with the new ideas
- ran into many ICEs with the patch and making progress
* Misc (2/10)
- Looked at http://ctuning.org/wiki/index.php?title=CTools:MilepostGCC
again
- gcc-patches, gcc-bugs list
- Meetings
== Plan ==
- Continue with gcc stage1 activities
== Progress ==
* Releases (CARD-1431 1/10)
- Final ARM/AArch64 3.6.1
* Automation Framework (CARD-1378 1/10)
- More meetings with Lab about infrastructure
* Maintenance (CARD-1833 5/10)
- Working on FIXMEs to TargetParser
* Buildbots (CARD-1823 1/10)
- Bisecting self-hosting failure on thumbv7a
* Background (2/10)
- Code review, meetings, discussions, etc.
- More stride vectorizer reviews (D9368)
- Setting up boards for developers
== Plan ==
* Finish the parser FIXMEs, get on with ASM warnings
* Check some Android bugs and see if I can reduce their numbers
* Probably a bit more infrastructure discussions
# Issues #
* Don't have arm board to run native gdb testsuite (my pandaboard is
too slow to run native tests). Get a chromebook, but takes a lot
of time installing ubuntu on it. Network still doesn't work, don't
know how much time are still needed to fix networking issues.
# Progress #
* Linaro GDB
** TCWG-517, GDB AAarch64 record/replay. [3/10]
These bits are finally posted upstream. The review looks good.
** TCWG-805, aarch64 native debugging multi-arch support. [4/10]
*** Switch to PTRACE_GETREGSET and PTRACE_SETREGSET. Patches are done,
but takes much time to set up GDB native testing env, as linaro
tcwglab is still unreachable.
Install ubuntun 14.02 on chrombook. Done, but network driver
doesn't work.
** Give my input on GDB kernel awareness.
** Tweak pandaboard for native gdb testing. Done.
** AArch64 debugging on different ELs, a meeting is scheduled
in the sprint but I ask more details before that meeting.
* FSF GDB [1/10]
** Review a patch about arm abi detection for ELFOSABI_GNU. Approve it.
** Review a patch about compile feature in GDB.
* Misc [2/10]
** Go to London for France Visa application on Monday and get visa on
Thu.
# Plan #
* TCWG-517, GDB AAarch64 record/replay.
Address review comments and push them in.
* TCWG-805, aarch64 native debugging multi-arch support.
Set up chromebook and test my patches on it.
--
Yao
Holiday Thursday afternoon and Friday [3/10]
Benchmark automation - TCWG-360 [4/10]
* CPU2006 patches cleaned up, submitted
* A few other small fixes
Misc [3/10]
* ~1/10 getting a Juno running
=Plan=
Holiday next week, then:
Pick a direction on streaming vs listeners, write down the reasoning
Follow up (close out?) results storage and restricted targets
Write more tests, refactoring where appropriate
Investigate running benchmarks through ci.linaro.org
If time, and it looks sane, wrap a LAVA job around benchmark scripts
== Progress ==
LLDB development
-- Submitted and committed AArch64 hardware watchpoint/breakpoint
support [2/10] [TCWG-771]
-- Submitted Arm hardware watchpoint/breakpoint support [1/10] [TCWG-770]
-- Debugged arm watchpoints on Nexus 7 Android device. [2/10] [TCWG-651]
Miscellaneous [5/10]
-- Submitted AArch64 gdb record-replay patches
-- Travel to Islamabad for interview at French Embassy
-- Meetings, emails, discussions etc.
== Plan ==
LLDB development
-- Fix issues with hardware watchpoints and try to run tests on Nexus 7
-- Update and resubmit Arm hardware watchpoint patch.
== This week ==
* TCWG-619 (2/10)
- Disabling seccomp-bpf, works with LTO build for chromium for
multiple partitions (-flto-partitions={balanced, 1to1})
- disabling fPIC does not prevent the error - "branch out of range"
for single or no partition (--param lto-partitions=1 / -flto-partitions=none )
- The docs say there is option to disable PLT (-fno-plt),
https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
but using it results in unrecognized command line option.
* PR49551 (2/10)
- Found out why r221297 prevents the ICE:
merge_decl() calls make_decl_rtl() upon condtion DECL_RTL_SET_P (olddecl),
which causes the ICE. Before r221297, in merge_decls() DECL_RTL_SET_P
(olddecl) was true which resulted in call to make_decl_rtl() causing
ICE. After r221297, DECL_RTL_SET_P (olddecl) is 0, which doesn't
result in call to make_decl_rtl() so no ICE is produced. However,
DECL_COMMON is still incorrectly set in merge_decls() because it
copies newdecl into olddecl.
- Will post upstream for review after final testing on x86 and ARM.
* Misc (6/10)
- Exams
Short week (2 days off)
== Progress ==
o Upstream GCC (3/6)
* Flags for Cortex-a53 erratum #84341 workaround:
- Backported into FSF 4.9 and 5 branches
* Some cleanup to avoid format-security warnings
* TCWG-786 (LRA and PIC): Look for potential improvements
- nothing found so far.
o Linaro GCC release (2/6)
* Reviewed FSF branch merge into 4.8 branch
* Look at differences between our actual source tarball, and
the ones that can be created by ABE.
o Misc (1/6)
* Various meetings
== Plan ==
- Continue ongoing tasks
Benchmark automation - TCWG-360 [7/10]
* Convinced benchmark scripts to run entirely within LAVA
* Did a couple of benchmark runs for Kugan
* Cleaned up my CPU2000 patches and committed to central repository
Misc [3/10]
=Plan=
Clean up, commit CPU2006 patches
Pick a direction on streaming vs listeners, write down the reasoning
Follow up (close out?) results storage and restricted targets
Write more tests, refactoring where appropriate
If time, and it looks sane, wrap a LAVA job around benchmark scripts
== Progress ==
* Upstream GCC (5/10)
- committed delaying constant splitting in arm after full testing
(TCWG-486)
- Spec benchmarking is still an issue (TCWG-779)
- Bernie agreed to kindly help benchmark it
- taking time due to long lava queue
- Started working on widening pass based on review comments (TCWG-555)
- Wilco from ARM provided some test-cases and looking into it as well
* GCC bootstrap/build issues (4/10)
- Looked at bare-metal
- aarch-elf-none issue
- gcc bootstrap issue with ARM
- middle-end error
- Thanks to all, all now fixed in mainline.
* Misc (1/10)
- gcc-patches, gcc-bugs list
- Meetings
== Plan ==
- Continue with gcc stage1 activities
- Look at register allocation
# Progress #
* TCWG-517, GDB AAarch64 record/replay. Ongoing. [3/10]
Takes over from Omair, complete test cases and update patches.
Rewrite the test case using gcc inline assembly.
Happen to see that AAarch64 doesn't have CPSR register but
GDB thinks it has. This should be fixed separately later.
* Think about GDB version in next linaro toolchain release. [3/10]
The next linaro release is on July/Aug and the next GDB FSF release
7.10 will be on mid of June. I prefer to picking up 7.10, but need
Ryan or Maxim to make a decision.
* Exchange emails with Peter to push GDB kernel awareness work forward,
and think about how do that in next step. [1/10]
* Misc [3/10]
** Print and photocopy documents needed for France visa application.
# Plan #
* Go to France Embassy in London on Monday.
* GDB AAarch64 record/replay test and upstream submission.
--
Yao
Hi,
I tried on abe 'stable' branch and with below configuration build was
successful.
../abe/configure --with-fileserver=148.251.136.42 --with-remote-snapshots=
http://148.251.136.42/snapshots-ref
../abe/abe.sh --target aarch64-linux-gnu --build all
(Additionally I had to increase the wget_timeout=100)
But on master branch, with below commands (as suggested in above mail)
following error were observed.
../abe/configure --with-fileserver=148.251.136.42
--with-remote-snapshots=/snapshots-ref
../abe/abe.sh --target aarch64-linux-gnu --build all
ERROR (#144): fetch_http (md5sums doesn't exist and you disabled updating.)
Looks like following commit is causing problem on the abe master branch.
On removing it, build successfully downloaded the packages from
148.251.136.42.
commit 5a5ab3582851d52d903846d34c79850f5d7ebda5
don't try to fetch anything is updates are disabled.
Thanks
Virendra
On 6 May 2015 at 17:30, <linaro-toolchain-request(a)lists.linaro.org> wrote:
> Send linaro-toolchain mailing list submissions to
> linaro-toolchain(a)lists.linaro.org
>
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> or, via email, send a message with subject or body 'help' to
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>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of linaro-toolchain digest..."
>
>
> Today's Topics:
>
> 1. Re: 502 connecting to abe.tcwglab.linaro.org (Tim Entinger)
> 2. Re: 502 connecting to abe.tcwglab.linaro.org (Victor Chong)
> 3. [ANNOUNCE] Linaro GCC 4.9 2015.04 snapshot re-spin (Yvan Roux)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 5 May 2015 12:44:44 +0000 (UTC)
> From: Tim Entinger <timothy.entinger(a)jci.com>
> To: linaro-toolchain(a)lists.linaro.org
> Subject: Re: 502 connecting to abe.tcwglab.linaro.org
> Message-ID: <loom.20150505T143929-367(a)post.gmane.org>
> Content-Type: text/plain; charset=us-ascii
>
> Rob Savoye <rob.savoye@...> writes:
>
> >
> > On 04/21/2015 04:23 PM, Christopher Covington wrote:
> > > abe$ ./abe.sh --target aarch64-linux-gnu
> > > NOTE: Downloading md5sums to abe/snapshots
> > > RUN: /usr/bin/wget --timeout=10 --tries=2 --directory-
> prefix=abe/snapshots/ http://abe.tcwglab.linaro.org/snapshots/md5sums
> >
> > We're having a major security related issue, so the entire TCWG lab
> > got taken offline yesterday till this is fixed and more secured. No
> idea
> > what the ETA is for all of that. ABE will work regardless other than
> > some warning messages about not being able to download the md5sums
> file,
> > or anything under 'infrastructure'. Most of what ABE needs is at
> > git.linaro.org, and that's still online. The only files ABE downloads
> > from abe.tcwglab.linaro.org are source tarballs, which don't change
> very
> > often. As long as you have them already downloaded, you can build a
> > toolchain still. I work offline pretty frequently, so have tried to
> make
> > ABE work without the upstream access to anything.
> >
> > Try adding '--disable update' to your command line for abe.sh, and
> > it'll stop trying.
> >
> > - rob -
> >
> > _______________________________________________
> > linaro-toolchain mailing list
> > linaro-toolchain <at> lists.linaro.org
> > https://lists.linaro.org/mailman/listinfo/linaro-toolchain
> >
>
>
> Is there any update for when the TCWG lab will be back online? I was
> trying to use ABE for the first time and got the 503 Service Unavailable
> message. Is there a way to specify different locations for the source
> tarballs in the meantime? I'm hoping to work around the issue if a
> timeline is still unknown.
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 5 May 2015 23:12:28 +0900
> From: Victor Chong <victor.chong(a)linaro.org>
> To: Tim Entinger <timothy.entinger(a)jci.com>
> Cc: Linaro Toolchain Mailman List <linaro-toolchain(a)lists.linaro.org>
> Subject: Re: 502 connecting to abe.tcwglab.linaro.org
> Message-ID:
> <CAHqM-QhhZw9hw33Mzf8iFtSDEdiX3NnLUMqvLt=v9JKHZgfa=
> Q(a)mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi Tim,
>
> On Tue, May 5, 2015 at 9:44 PM, Tim Entinger <timothy.entinger(a)jci.com>
> wrote:
>
> > Rob Savoye <rob.savoye@...> writes:
> >
> > >
> > > On 04/21/2015 04:23 PM, Christopher Covington wrote:
> > > > abe$ ./abe.sh --target aarch64-linux-gnu
> > > > NOTE: Downloading md5sums to abe/snapshots
> > > > RUN: /usr/bin/wget --timeout=10 --tries=2 --directory-
> > prefix=abe/snapshots/ http://abe.tcwglab.linaro.org/snapshots/md5sums
> > >
> > > We're having a major security related issue, so the entire TCWG lab
> > > got taken offline yesterday till this is fixed and more secured. No
> > idea
> > > what the ETA is for all of that. ABE will work regardless other than
> > > some warning messages about not being able to download the md5sums
> > file,
> > > or anything under 'infrastructure'. Most of what ABE needs is at
> > > git.linaro.org, and that's still online. The only files ABE downloads
> > > from abe.tcwglab.linaro.org are source tarballs, which don't change
> > very
> > > often. As long as you have them already downloaded, you can build a
> > > toolchain still. I work offline pretty frequently, so have tried to
> > make
> > > ABE work without the upstream access to anything.
> > >
> > > Try adding '--disable update' to your command line for abe.sh, and
> > > it'll stop trying.
> > >
> > > - rob -
> > >
> > > _______________________________________________
> > > linaro-toolchain mailing list
> > > linaro-toolchain <at> lists.linaro.org
> > > https://lists.linaro.org/mailman/listinfo/linaro-toolchain
> > >
> >
> >
> > Is there any update for when the TCWG lab will be back online? I was
> > trying to use ABE for the first time and got the 503 Service Unavailable
> > message. Is there a way to specify different locations for the source
> > tarballs in the meantime? I'm hoping to work around the issue if a
> > timeline is still unknown.
> >
>
> We've setup an alternate server for the source tarballs for now. Configure
> master with '--with-fileserver=148.251.136.42
> --with-remote-snapshots=/snapshots-ref' to use it.
>
>
> >
> > _______________________________________________
> > linaro-toolchain mailing list
> > linaro-toolchain(a)lists.linaro.org
> > https://lists.linaro.org/mailman/listinfo/linaro-toolchain
> >
>
Hi Guys,
I have two questions:
(1) I have download gcc-4.9 tool chain from
http://releases.linaro.org/14.08/components/toolchain/binaries.
The kernel for the release
(http://releases.linaro.org/14.08/components/kernel/linux-linaro) is
3.16. So can we assume the kernel headers found in the tool chain
installation from the link above belongs to linux version 3.16?
(2) Also, I ubuntu wiki indicates that starting with Ubuntu 12.04 they
are using linaro gcc packages for arm64
(https://wiki.ubuntu.com/ToolChain). Is there an easy way to find what
linaro-release (for tool chain) will be compatible with Ubuntu 14.10
aarch64 image?
Thanks,
Aravind
--
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
Short week (off Thu/Fri - 4/10)
== Progress ==
* GCC trunk (1/10)
- investigated bare-metal broken builds for aarch64 and arm
(--with-mode=thumb)
Setting LDFLAGS_FOR_TARGETS=-specs=rdimon.specs fixes the
libstdc++ build problem for aarch64. Not sure if that's expected.
* Neon intrinsics tests (2/10)
- submitted a new set of tests for review
* 4.8-2015.04
- branch merge committed after validation
* Validation (1/10)
- looking at tests instabilities
* Misc (2/10)
- meetings, conf-calls, emails, ....
== Next ==
* Neon intrinsics tests
* GCC trunk/bare metal
* Validation
== Progress ==
LLDB development
-- Finished most of work for ARM watchpoints and hardware breakpoints
[3/10] [TCWG-770]
-- Added hardware breakpoint handlers for AArch64 [1/10] [TCWG-771]
-- Debugging for ARM watchpoints not hitting the hardware watchpoint
Set/Clear handlers. [3/10] [TCWG-770]
-- Setting up development environment on Google Nexus 7 Android device. [1/10]
Miscellaneous [2/10]
-- Meetings, emails, discussions etc.
-- Submission of French visa application
== Plan ==
LLDB development
-- Submit ARM and AArch64 hardware breakpoint and watchpoints code for review
-- Fix issues with hardware watchpoints and try to run tests on Nexus 7
-- Figure out debugging using gdb on Nexus 7
Miscellaneous
-- Travel to Islamabad for visa interview, out of office on
wednesday 13th May 2015.
-- Half day out of office on Monday 11th and Tuesday 12th May due to
power outage in the area.
Short week: Friday off
== Progres ==
* Linaro-GCC 4.8-2015.04
- have to redo the fsf-4.8 branch merge
- results stability issue, probably caused by a race condition in
the testsuite similar to one already fixed by Maxim
* Validation
- a few updates to our jobs on ci.linaro.org
* Neon intrinsics tests
- resumed port of existing testsuite to GCC
* Misc
- meetings, conf-calls, emails, ....
== Next ==
Short week (Thu/Fri off)
* Linaro-GCC-4.8-2015.04
* Neon intrinsics tests
Friday off (WWII Memorial Day)
== Issue ==
* none
== Progress ==
o Upstream GCC (4/8)
* [TCWG-762] - GCC Maintenance
- PR64208 (iWMMXT LRA bug):
Committed in trunk.
- PR65924 (ICE on arm-none-eabi):
Fixed and committed at rev. 22572
* Flags for Cortex-a53 erratum #84341 workaround:
- Committed in trunk
- To be backported into FSF 5.1 and 4.9 branches
o 2015.04 re-spin (2/8)
* Snapshot tarball deployed
o Misc (2/8)
* Various meetings
* Reviewed and validated a libunwind ARM patch
* Played a bit with docker AArch64 image (based on UMEQ)
https://registry.hub.docker.com/u/mickaelguene/arm64-debian/
== Plan ==
- Short week (off Thu, and Fri)
- Continue upstream pending work
(Public) Holiday [2/10]
Benchmark automation - TCWG-360 [6/10]
* More unit tests
* Refactoring - test writing is an effective spotlight
* Experimented with LAVA log streaming as a 'listener' replacement
** Reduces complexity, for (possibly insignificant) costs in
generality and scalability
* Gave some thought to results storage, benchmarking of restricted targets
Misc [2/10]
=Plan=
Pick a direction on streaming vs listeners, write down the reasoning
Follow up (close out?) results storages and restricted targets
Write more tests, refactoring where appropriate
Holiday [2/10]
Benchmark automation - TCWG-360 [5/10]
* Finished rolling backbench patches into review
* Submitted some test suite patches to reduce the number of untested cases
* Began writing tests for benchmarking in general
Misc [3/10]
== Progress ==
* Upstream GCC (4/10)
- TCWG-779 Vector rtx costs for AArch64 ACKed to commit.
- Asked to do fresh regression and benchmarking
- re-based to latest trunk
- Trunk is broken and narrowed down the failure to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66066
- Fixed and regression testing finished. Setting up benchmarking for
spec2k before committing.
* IRA (5/10)
- Looked at https://bugs.linaro.org/show_bug.cgi?id=540 (TCWG-773
Median of three has unneeded register moves)
- https://bugs.linaro.org/show_bug.cgi?id=1532
* Misc (1/10)
- gcc-patches, gcc-bugs list
- Meetings
== Plan ==
- Continue with gcc stage1 activities
- Look at register allocation
== This week ==
* PR49551 (2/10)
- Created new patch: http://pastebin.com/PsLTgvp7
- merge_decls() calls memcpy to copy newdecl into olddecl thus
overriding DECL_COMMON in olddecl which is the source of the bug.
If newdecl has common/nocommon attribute set, honor it,
else DECL_COMMON would be set if both olddecl and newdecl have DECL_COMMON set.
- Bootstrapped on x86, tested on x86, arm
- Not yet figured out why r221297 masks this bug.
* TCWG-619 (4/10)
- managed to build chromium LTO on ARM, requires disabling components
enabled by variable 'chromium_code'. Size of chrome executable reduces
by 8 mb.
- the bug: "error out of range" appears only during LTO build of
components enabled by chromium_code. Results in very few instances of
the same error message when LTO build for chromium_code components.
- Disabling LTO in sandbox.gyp and passing -flto results in following error:
/tmp/ccYJJbUK.ltrans25.ltrans.o:<artificial>:vtable for
blink::WebDocument [clone .lto_priv.89343]: warning: relocation refers
to discarded section
/home/prathamesh.kulkarni/fsf-toolchain/lib/gcc/x86_64-unknown-linux-gnu/6.0.0/../../../../x86_64-unknown-linux-gnu/bin/ld.gold:
error: hidden symbol '_ZN5blink11WebDocumentD1Ev' is not defined
locally
Also present for x86.
The workaround is to pass -flto --param lto-partitions=1 as mentioned
in PR57703.
- gold ICE with v8 LTO build for ARM not reproducible with master branch.
- Trying to use Martin Liska's scripts for gathering build stats:
https://github.com/marxin/script-misc/blob/master/system_top.pyhttps://github.com/marxin/script-misc/blob/master/vmstat_parser.py
* Misc (4/10)
- Exams preparation
- Visa application
== Next Week ==
- PR49551: figure out why r221297 masks the bug, write test-cases and
submit patch upstream
- chromium/v8 build stats
- exams
