News and announcements

Linaro Image Tools 0.4.6 released

Written for Linaro by Fathi Boudra on 2011-05-23

The Linaro Infrastructure team is pleased to announce the
release of Linaro Image Tools 0.4.6.

Linaro Image Tools offer a set of tools for use with Linaro images.

Highlights of this release:
 * Support for ST-Ericsson Snowball board has been added
 * More memory allocated to enable 1080p resolution on Panda board
 * --image_size option can be used without a unit suffix
 * qemu-img is no longer required for linaro-media-create

The source tarball is available from:

  https://launchpad.net/linaro-image-tools/trunk/0.4.6

Hwpacks for the Snowball board will first be made available on
igloocommunity.org and later on linaro.org.

Linaro GDB 7.2 2011.05 released

Written for Linaro by Fathi Boudra on 2011-05-20

The Linaro Toolchain Working Group is pleased to announce the release
of Linaro GDB 7.2.

Linaro GDB 7.2 2011.05-0 is the sixth release in the 7.2 series. Based
off the latest GDB 7.2, it includes a number of ARM-focused bug fixes.

This release fixes:
 * LP: #615972 Neon registers missing in core files
 * LP: #615978 Failure to software single-step into signal handler
 * LP: #615996 gdb.cp/templates.exp failures

The source tarball is available at:
 https://launchpad.net/gdb-linaro/+milestone/7.2-2011.05-0

More information on Linaro GDB is available at:
 https://launchpad.net/gdb-linaro

Linaro GCC 4.5 and 4.6 2011-05 released

Written for Linaro by Fathi Boudra on 2011-05-20

The Linaro Toolchain Working Group is pleased to announce the release
of both Linaro GCC 4.5 and Linaro GCC 4.6.

Linaro GCC 4.5 2011.05 is the tenth release in the 4.5 series. Based
off the latest
GCC 4.5.3+svn173417, it adds new optimisations, much improved support
for strided load/stores, and fixes for many of the issues found in the
last month.

Interesting changes in 4.5 include:
 * Updates to 4.5.3+r173417
 * Performance improvements in NEON strided loads and stores
 * Performance improvements targeted at EEMBC CoreMark
 * Precompiled header support on recent Linux kernels

Fixes:
 * LP: #660156: Heap randomisation causes PCH testsuite failures
 * LP: #784375: vset_lane_u8 intrinsic generates wrong lane number
 * LP: #759409: Profiled bootstrap fails in FSF GCC 4.5
 * LP: #723086: Test regressions in the Fortran test suite

The strided load/store improvements allow both NEON intrinsics and the
vectoriser to efficiently access values that occur at every n'th
address, such as all of the red values in a RGB image or all of the
left channel samples in a interleaved audio array. Previous versions of GCC
would unpack the values onto the stack instead of using the registers
directly.

The CoreMark improvements improve the code generation for the hot
functions in benchmark. This release is now on par with Linaro GCC
4.4 and significantly ahead of other FSF or Linaro 4.5 based
compilers. This fixes the long-standing problems of ARMv5 being
faster than ARMv7 and 4.4 based compilers being faster than 4.5 based
ones.

Linaro GCC 4.6 is the third release in the 4.6 series. Based off the
latest GCC 4.6.0+svn173480, it adds new optimisations, vectoriser
improvements, and continues with the merge of many ARM-focused
changes.

Interesting changes include:
 * Updates to 4.6.0+r173417
 * Brings forward more of the performance improvements from Linaro GCC 4.5
 * Adds support for swing-modulo scheduling
 * Fixes precompiled header support on recent Linux kernels
 * Changes the default NEON vector size to quads
 * Adds auto-detection of the best vector size
 * Adds vectorisation improvements due to better if-conversion

Fixes:
 * LP: #714921: Uses an unreasonable amount of memory to compile QEMU on armel
 * LP: #723086: Test regressions in the Fortran test suite

The source tarball is available from:
 https://launchpad.net/gcc-linaro/+milestone/4.5-2011.05-0
 https://launchpad.net/gcc-linaro/+milestone/4.6-2011.05-0

Downloads are available from the Linaro GCC page on Launchpad:
 https://launchpad.net/gcc-linaro

Mailing list: http://lists.linaro.org/mailman/listinfo/linaro-toolchain

Bugs: https://bugs.launchpad.net/gcc-linaro/

Questions? https://ask.linaro.org/

Interested in commercial support? inquire at support@linaro.org

Linaro 11.05 open for development

Written for Linaro by Jamie Bennett on 2010-11-11

The Linaro 11.05 cycle is open for development.

Linaro Announced

Written for Linaro by Jamie Bennett on 2010-06-03

Welcome to Linaro!

ARM, Freescale, IBM, Samsung, ST-Ericsson, Texas Instruments, Canonical
and the Linux Foundation have been working hard to create a united
effort tasked with fostering innovation in the Linux community. Through
Linaro, these and other partners will provide resources, industry
alignment and a stable, optimized base for distributions and developers
to use with their new and innovative ARM based products. The key to
these goals is to work with, and for the Linux community; providing
effort in the various upstream projects, creating and improving tools
and offering the very best expertise. Starting from today, Linaro will
offer all of these.

To find out more about Linaro please visit:

  http://www.linaro.org

and the wiki at:

  http://wiki.linaro.org

There is no doubt we have a lot of work ahead of us and I invite you all
to participate, discuss and help shape the future of Linaro and Linux on
ARM devices.

Regards,
Jamie,
--
Linaro Release Manager

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