== Progress ==
* Profiling ImageMagick
- Clang 3.4-svn is around 10% less performing than GCC 4.7.3
- Mainly due to recursive octree-style map/reduce of most functions,
spending a lot of time
before/after branches
- Any optimization on that front won't fit the "Incubation" tag
* Profiling EEMBC
- Found 2 cases where Clang is *a lot* better than GCC 4.7.3 (pruning
bmark.c, producing much
smaller objects, and vectorizing telecom/autcor, which GCC can't)
- Most of the time, GCC is slightly better (~5% faster, ~10% smaller,
geomean)
- Wrote some scripts to run any two compilers against each other, compare
the results and
dump the ratios in a TSV file.
== Plans ==
* Update EEMBC Linaro image with Clang toolchain changes
* Look for low-hanging fruits in EEMBC
* Try comparison with GCC 4.8 and 4.9, too
* Find a way to extract Phoronix results in TSV format
== Progress ==
* Checked testsuite for glibc and gcc bootstrap on aarch64 native
* Released Linaro gdb 7.6.1 2013.09-1
* Submitted glibc pointer guard patch using TLS
* Submitted respin of pointer guard patch using a global variable
* Submitted binutils aarch64 ifunc patches for a second time
* A little bit of time on malloc
* Built office furniture!
== Issues ==
* None
== Plan ==
* Finish off pointer guard
* Hopefully back to malloc
--
Will Newton
Toolchain Working Group, Linaro
The Linaro Toolchain and Platform Working Groups are pleased to announce
the 2013.09 release of the Linaro Toolchain Binaries, a pre-built version
of Linaro GCC and Linaro GDB that runs on generic Linux or Windows and
targets the glibc Linaro Evaluation Build.
This release introduces a set of experimental (pre-alpha) crosscompilers to
big-endian ARM architectures.
Uses include:
* Cross compiling ARM applications from your laptop
* Remote debugging
* Build the Linux kernel for your board
What's included:
* Linaro GCC 4.8 2013.09
* Linaro Newlib 2.0 2013.06
* Linaro Binutils 2.23 2013.06
* Linaro Eglibc 2.17-2013.07-2
* Linaro GDB 7.6 2013.05
* A statically linked gdbserver
* A system root
* Manuals under share/doc/
The system root contains the basic header files and libraries to link your
programs against.
Interesting changes include:
* gcc updated to 4.8-2013.09
* Initial big-endian pre-alpha versions added
The Linux version is supported on Ubuntu 10.04.3 and 12.04, Debian 6.0.2,
Fedora 16, openSUSE 12.1, Red Hat Enterprise Linux Workstation 5.7 and
later, and should run on any Linux Standard Base 3.0 compatible
distribution. Please see the README about running on x86_64 hosts.
The Windows version is supported on Windows XP Pro SP3, Windows Vista
Business SP2, and Windows 7 Pro SP1.
The binaries and build scripts are available from:
http://releases.linaro.org/13.09/components/toolchain/binaries
Need help? Ask a question on https://ask.linaro.org/
Already on Launchpad? Submit a bug at
https://bugs.launchpad.net/linaro-toolchain-binaries
On IRC? See us on #linaro on Freenode.
Other ways that you can contact us or get involved are listed at
https://wiki.linaro.org/GettingInvolved.
### About Linaro gdb
Linaro gdb is a release of the GNU debugger with bug fixes and
enhancements for ARM platforms. gdb allows interactive debugging of
C and C++ programs natively and remotely.
### Linaro gdb 7.6.1 2013.09-1
The Linaro Toolchain Working Group is pleased to announce the 2013.09-1
release of Linaro gdb 7.6.1, the first release in the 7.6.1 series.
This release is based on the latest upstream gdb 7.6 stable branch,
but with additional features and bug fixes.
#### Additional Features
* None
#### Bug Fixes
* Fixes for debugging on AArch64 with hardware breakpoints.
### Source
#### Release Tarball
* https://releases.linaro.org/13.09/components/toolchain/gdb-linaro
#### Development Tree
* git://git.linaro.org/toolchain/gdb.git
This release was built from the `linaro_gdb-7_6_1-2013_09-1_release` tag.
### Feedback and Support
Subscribe to the important Linaro mailing lists and join our IRC channels to
stay on top of Linaro development.
* Linaro Toolchain Development [mailing
list](http://lists.linaro.org/mailman/listinfo/linaro-toolchain)
* Linaro Toolchain IRC channel on irc.freenode.net at `#linaro-tcwg`
* Questions? [ask Linaro](http://ask.linaro.org/).
* Interested in commercial support? inquire at [Linaro
support](mailto:support@linaro.org)
--
Will Newton
Toolchain Working Group, Linaro
== Progress ==
* Finally got GCC 4.7 automatic updates working from launchpad.
* Continuing with Jenkins/Cbuildv2/Git integration.
* Added support for using specific commit IDs with Git and
Cbuildv2. Also many improvements to how git branches and
revisions are handled.
* Worked on importing testing results from Jenkins builds, there
seems to be a problem finding the .sum files when the build is
complete.
* Started getting new Odroid boards online running Ubuntu.
== Plan ==
* Work on getting Canadian Cross builds working in Cbuildv2.
* Finish getting Odroid boards setup.
* Compare automated tarballs with the current release tarballs.
* Continuing with Jenkins/Cbuildv2/Git integration.
* Try to work around problem with importing test results.
== Issues ==
* Phone and network access has been randomly down for extended
periods. I assume it's flood repairs related.
== Progress ==
* GCC trunk cross-validation:
- stabilizing reporting (dealing with thread tests giving unstable
results when run under qemu, timeouts caused by overload of the
compute farm, ....)
- adding aarch64
* Backports:
- updated list (57 candidates for 4.8-2013.03), discussed
prioritization and collaboration with ARM.
- sent 1st branch-merge candidate for testing, as a preparation to
partially backport a bug fix from Richard.
* Aarch64 frame grows downward:
- modified test-case shows that code can be better with frame grows
downward than upward, depending on variables order and layout.
== Next ==
* Backports
- start backporting to prepare 2013.10 release
* AArch64 frame grows downward: continue
* Disable-peeling: resume work
== Progress ==
* Visit to Cambridge (Tue - Thu) and annual leave (Fri).
* Applied gas fix for neon vector load/store constraints.
* Applied glibc memcpy performance tweak.
* Applied gdbserver AArch64 fix to trunk and branch.
* Updated gdb release process and built a release candidate.
* Started glibc ARM pointer guard work
== Issues ==
* None
== Plan ==
* gdb 2013.09 release
* Various small items arising out of meetings last week
* Complete glibc ARM pointer guard
--
Will Newton
Toolchain Working Group, Linaro
== Issues ==
* None.
== Progress ==
* LRA on AArch64:
- Validate Vladimir's patch to support
HARD_REGNO_CALL_PART_CLOBBERED macro in LRA.
- Reduced and analysed libstdc++ failures : they were due to PCH
usage, but the issue was fixed with a rebase on trunk's head.
- Testsuite is now clean.
- Waiting for my rtl analyser patch to be accepted.
* LRA on AArch32:
- No more libstdc++ failures, they were PCH related too.
- One more issue in ARM mode testsuite, related bad REG_NOTES info
after LRA pass.
- Reduced failing Thumb testcase.
== Next ==
* Continue on LRA.
== Progress ==
* Spent week in Linaro's Cambridge office, had meetings with team mates.
* Visited ARM office in Cambridge and met toolchain team there.
* Submitted patch for GDB Record and Replay thumb32 support upstream.
* Reviewed and reproduced gdb bugs reported on launchpad and changed
their status according.
* Reviewed previously submitted gdb patches and replied to comments if required.
* Reviewed x86 record syscall code in GDB for adding support for
recording ARM syscall record.
* Updated JIRA cards or added new issues against bugs or features.
== Plan ==
* Progress on record and replay feature by testing instruction set support.
* Review all open JIRA cards for GDB
* Work on getting previous patches committed or resubmit new ones.
* Submit US visa application for LCU13.
== Issues ==
* None
== Progress ==
* 2 day off on Chinese Mid-Autumn Festival
* Update conditional compare (CCMP) patch according to community comments.
* Work out a patch to fix PR 58423.
* Prepare LCU'13 Visa and hotel.
== Plan ==
* Continue on CCMP.
== Panned leaves ==
* Sept. 24 AM: US Visa.
* Oct. 1-7: National Day of China holiday
