The Linaro Toolchain Working Group is pleased to announce the 2012.12
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.
Uses include:
* Cross compiling ARM applications from your laptop
* Remote debugging
* Build the Linux kernel for your board
What's included:
* Linaro GCC 4.7 2012.12
* Linaro GDB 7.5 2012.12
* 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.
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:
https://launchpad.net/linaro-toolchain-binaries/trunk/2012.12
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.
== Progress ==
* Release week:
- Made 2012.12 release of gcc-linaro 4.6 and 4.7.
- took lot of time (infrastructure, right acess, Lava lab migration)
* GCC atomic builtins:
- my load acquire patch was applied up-stream (trunk and 4.7).
- some cleaning in optabs.c (patch applied up-stream too).
== Next ==
* Resume Boehm GC AArch64 support.
* Review roster.
== Progress ==
* gdb-linaro-7.5-2012.12 release
- Updated wikis about gdb sources import from upstream and about
gdb-linaro release
- still some trouble with infrastructure to achieve the release
* 64-bits ops in Neon: no news from upstream
* disable-peeling: upstream advice is to enable & tune the vectorizer
cost model first, but there seems to be an agreement that if unaligned
accesses have no penalty, peeling should not be considered. Updated
the vectorizer-cost-model blueprint
* builtin_bswap16 backport to linaro-4.7: the i686 regression was
caused by the build process. Re-spawned the jobs after fixing the
remaining arm issue
* cbuild: briefly looked at some scripts to better understand the
whole system, while tracking a problem in the gdb validation reports
== Next ==
* handle 64-bits bitops in Neon and disable-peeling feedback from
upstream if any
* finish builtin_bswap16 backport
== Future ==
* on holidays for 2 weeks (Dec 22th-Jan 6th)
== Blueprints ==
Initial Current Actual
initial-aarch64-backport 31 Oct 2012 31 Dec 2012
aarch64-baremetal-testing 31 Oct 2012 31 Dec 2012
backport-fma-intrinsic 31 Dec 2012 Brice
fused-multiply-add-support 31 Dec 2012 Brice
gcc-investigate-lra-for-arm 31 Dec 2012 31 Dec 2012
fix-gcc-multiarch-testing 31 Dec 2012 31 Jan 2013
== Progress ==
* Admin
* Interviewing
* Took over from Michael
* New Starter prep
* Updated card drafts
* Discussions about LEG/TCWG interactions
* Discussions about KVM
* Discussions about Toolchain/Platform interactions
== Next Week ==
* Upload card drafts into Jira.
* initial-aarch64-backport and aarch64-baremetal-testing
* Complete documentation
== Future ==
* gcc-investigate-lra-for-arm
* Analyse benchmarks
* Run HOT/COLD partitioning benchmarks
* Analyse ARM results
* On x86_64 to see what the actual benefit we could get
* fix-gcc-multiarch-testing
* Come up with strawman proposal for updating testsuite to handle
testing with varying command-line options.
--
Matthew Gretton-Dann
Linaro Toolchain Working Group
matthew.gretton-dann(a)linaro.org
* qemu-linaro 2012.12 release
* arm-devs pullreq sent
* wrote a patch for some minor TCG leaks
* more virtio patch review
* various other upstream arm devs review
* discussion re KVM planning, etc
* usual collection of meetings and calls
KVM blueprint progress tracker (note new url):
http://cbuild.validation.linaro.org/helpers/backlog?group_by=topic&colour_b…
-- PMM
Hi Ramana. You have the following branches remaining on Launchpad:
* lp:~ramana/gcc-linaro/47-lower-subreg-experiments
* lp:~ramana/gcc-linaro/47-improve-neon-intrinsics
* lp:~ramana/gcc-linaro/47-nobble-promote-mode
* lp:~ramana/gcc-linaro/47-smin-umin-idiom
Which are obsolete, which should be spun out into backlog blueprints,
and which should be taken over by someone?
-- Michael
Summary:
* Validate RM toolchain
* Prepare Linaro Toolchain Binaries 2012.12 release.
* Collect performance data for different branch cost.
Details:
1. Validate RM toolchain release.
2. Collect denbench and spec2000int performance data for branch cost tuning.
3. Fix README issue (lp:1068402) by dynamically create README.txt:
* The hard coded README.txt is removed.
* Update build scripts to generate the README.txt, which depends on
- README.texi, which is the common template for all TARGETS.
- config.texi, which sets the default configuration for the
TARGET. Each TARGET has a config.texi.
- version.texi, created during build, includes GCC_VERSION,
GDB_VERSION and TOOLCHAIN_VERSION.
4. Update Linaro GCC and GDB to 2012.12 in Linaro crosstool-ng,
workaround gdb mingw32 link fail issue (due to mbsrtowcs is redefined
in gdb/gnulib), finish the smoke test and spawn release builds.
Plans:
* Investigate how branch cost impacts on code generation.
* Release Linaro Toolchain Binaries 2012.12.
Best regards!
-Zhenqiang
The Linaro Toolchain Working Group is pleased to announce the release
of Linaro GDB 7.5.
Linaro GDB 7.5 2012.12 is the second release in the 7.5 series.
***NOTE*** Linaro GDB 7.5 2012.12 is identical to the FSF GDB 7.5.1 release,
except for the change in version number and Linaro branding, since all
Linaro GDB features were already accepted upstream and are included in
the FSF release as-is. Future releases in the Linaro GDB 7.5 series may
include additional ARM-focused bug fixes and enhancements.
The source tarball is available at:
https://launchpad.net/gdb-linaro/+milestone/7.5-2012.12
More information on Linaro GDB is available at:
https://launchpad.net/gdb-linaro
Christophe Lyon
The Linaro Toolchain Working Group is pleased to announce the release of
Linaro QEMU 2012.12.
Linaro QEMU 2012.12 is the latest release of qemu-linaro. Based off
upstream (trunk) QEMU, it includes a number of ARM-focused bug fixes
and enhancements.
There are no major changes in this month's release, but it has
been updated to be based on upstream's recent 1.3.0 release.
The source tarball is available at:
https://launchpad.net/qemu-linaro/+milestone/2012.12
More information on Linaro QEMU is available at:
https://launchpad.net/qemu-linaro
-- PMM
