The Linaro Toolchain Working Group is pleased to announce the release
of Linaro QEMU 2011.04-1.
Linaro QEMU 2011.04-1 is the third release of qemu-linaro. Based
off upstream (trunk) qemu, it includes a number of ARM-focused
bug fixes and enhancements.
Interesting changes include:
- Compiling for an ARM host in Thumb mode now works
- As usual, various minor correctness fixes and other upstream changes
Known issues:
- The beagle and beaglexm models do not support USB, so there is no
keyboard, mouse or networking (#708703)
The only change over the shortlived 2011.04-0 is to fix a compilation
failure with gcc 4.5.
The source tarball is available at:
https://launchpad.net/qemu-linaro/+milestone/2011.04-1
Binary builds of this qemu-linaro release are being prepared and
will be available shortly for users of Ubuntu. Packages will be in
the linaro-maintainers tools ppa:
https://launchpad.net/~linaro-maintainers/+archive/tools/
More information on Linaro QEMU is available at:
https://launchpad.net/qemu-linaro
The Linaro Toolchain Working Group is pleased to announce the release
of Linaro GDB 7.2.
Linaro GDB 7.2 2011.04 is the fifth 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: #684218 Failure to backtrace out of glibc system call stubs
* LP: #667309 failed to single step over bad thumb->arm boundary
* Fix accessing "fpscr" register
The source tarball is available at:
https://launchpad.net/gdb-linaro/+milestone/7.2-2011.04-0
More information on Linaro GDB is available at:
https://launchpad.net/gdb-linaro
-- Michael
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 2011.04 is the ninth release in the 4.5 series. Based
off the latest
GCC 4.5.2+svn171921, it adds new optimisations, support for Android,
and fixes for many of the issues found in the last month.
Linaro GCC 4.6 2011.04 is the second release in the 4.6 series. Based off the
latest GCC 4.6.0+svn171921, it is the first supported release of the
new series and includes a significant number of mainstreamed patches
from 4.5.
Interesting changes in 4.6 include:
* Updates to 4.6.0+r171921
* Adds conditional store sinking to the vectoriser
* Brings in a significant number of the Linaro GCC 4.5 patches that
are in mainline
Interesting changes in 4.5 include:
* Updates to 4.5.2+r172013
* Disables the shrink wrap optimisation by default
* Adds support for swing-modulo scheduling (SMS) on ARM
* Adds support for Android and the Bionic C library
* Optimises -fvar-tracking, greatly reducing memory used when
compiling large files (seen in QEMU)
Fixes:
* 'volatile' being ignored on volatile struct members
* A potential register clobber in arm_negdi2
* An error in libgcc that prevented it being built with -Os
* Multiple shrink wrap bugs (LP: #731665, 721023, 736081, 758082,
730860, 736439, 721023)
* LP: #730440 incorrect immediate for movt (seen in Firebird)
* LP: #728315 extension elimination pass mishandles subregs of
promoted variables (seen on MIPS)
* LP: #675347 volatile int causes inline assembly build failure (seen
in Qt)
SMS is an optimisation that works on innermost loops and reorders the
instructions by overlapping different locations. An example is that
the values for the next loop may be loaded during the current loop,
making the values already ready when the next loop starts.
SMS is disabled by default. To try it, add the options '-fmodulo-sched
-fmodulo-sched-allow-regmoves'.
The source tarball is available from:
https://launchpad.net/gcc-linaro/+milestone/4.5-2011.04-0https://launchpad.net/gcc-linaro/+milestone/4.6-2011.04-0
Downloads are available from the Linaro GCC page on Launchpad:
https://launchpad.net/gcc-linaro
-- Michael
