Hi,
We are working on userspace aarch64 and aarch32 apps and we are trying
to run 32/64 mode app simultaneously.
Is there any multi-arch support for mixed rootfs (has linkers/libs of
both arm and arm64)?
--
Thanks,
-Zhou
Progress:
* back from sabbatical!
* caught up on admin, email, etc
* code review: Christoffer's GIC related patches; VSEL support in 32 bit v8;
support for VBAR; integrator bugfixes; others
* working on a pullreq for ARM stuff to go into QEMU 1.7
(we're now in softfreeze)
Plans:
* attend KVM Forum, Connect
* review the SuSE aarch64-linux-user patches
-- PMM
== Issues ==
* None
== Progress ==
* Prepare Linaro toolchain binaries 2013.10 release
- Update EGLIBC version to 2013.10 and enable-profile for AARCH64.
- Generate Linaro prebuilt sysroot for arm-linux-gnueabihf.
* Commit patch to Reassociate X == CST1 || X == CST2 if popcount (CST2
- CST1) == 1 into ((X - CST1) & ~(CST2 - CST1)) == 0
* Send ifcombine patch (to generate more conditional compare) for review.
* Root cause pr58775.
* Test conditional compare changes.
- Bootstrap and no make check regression on THUMB mode.
- ARM mode test is ongoing.
== Plan ==
* Send out the CCMP patch for review.
== Issues ==
* Short week
- school closed on Thursday
- holiday Friday
- several visits to the dentist
- feeling poorly, I think I have shellfish allergy
== Progress ==
* EEMBC
- Identified the problem on test not vectorizing
- Some ways to fix it: SLP, stride-access, unrolling
- Started implementation of GEP-PHI detection for reduction variables
* Odroid XU
- Bot died after a few hours, not really stable
- Trying again, at home, both odroids in parallel, they seem ok
* Background
- General reviews, etc.
The Linaro Toolchain Working Group is pleased to announce the
release of both Linaro GCC 4.8 and Linaro GCC 4.7.
Linaro GCC 4.7 2013.10 is the nineteenth release in the 4.7
series. Based off the latest GCC 4.7.4+svn203509 release, this is the
sixth release after entering maintenance.
Interesting changes include:
* Updates to GCC 4.7.4+svn203509
* Fix for LP #1229170
Linaro GCC 4.8 2013.10 is the seventh release in the 4.8 series. Based
off the latest GCC 4.8.1+svn203510 release, it includes performance
improvements and bug fixes.
Interesting changes include:
* Updates to GCC 4.8.1+svn203510
* Improved AArch64 support (CRC extension, improved intrinsics, gprof
support)
* Improved Aarch32 support (bug fixes, better code generation,
improved multilib)
* Backports for bug fixes (PR58578
We are aware that FSF GCC 4.8.2 was released earlier this week.
However, this release happened too late in our cycle for us to use it
as the basis for Linaro GCC 4.8 2013.10. The only functional
difference contained in FSF GCC 4.8.2 that is not in Linaro GCC 4.8
2013.10 is a correction to a x86 test case.
The source tarballs are available from:
https://launchpad.net/gcc-linaro/+milestone/4.7-2013.10https://launchpad.net/gcc-linaro/+milestone/4.8-2013.10
Downloads are available from the Linaro GCC page on Launchpad:
https://launchpad.net/gcc-linaro
More information on the features and issues are available from the
release pages:
https://launchpad.net/gcc-linaro/4.7/4.7-2013.10https://launchpad.net/gcc-linaro/4.8/4.8-2013.10
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(a)linaro.org
### About Linaro binutils
Linaro binutils is a release of the GNU binutils with bug fixes and
enhancements for ARM platforms. GNU binutils is a collection of tools
including the `ld` linker and `as` assembler.
### Linaro binutils 2.23.2 2013.10-4
The Linaro Toolchain Working Group is pleased to announce the 2013.10-4
release of Linaro binutils 2.23.2, the third release in the 2.23 series.
This release is based on the latest GNU binutils 2.23 stable branch, but
with additional features and bug fixes.
#### Additional Features
* AArch64 GC sections support
* Support passing -mcpu=cortex-a53 and -mcpu=cortex-a57 to AArch64 gas
* Support passing -mcpu=cortex-a53 and -mcpu=cortex-a57 to ARM gas
* Support passing -mcpu=cortex-a12 to ARM gas
* Support AArch64 CRC instructions
* Support ARM CRC instructions
#### Bug Fixes
* Bug fix for AArch64 GOT layout
* Fixed source tarball structure
### Source
#### Release Tarball
* https://releases.linaro.org/13.10/components/toolchain/binutils-linaro
#### Development Tree
* git://git.linaro.org/toolchain/binutils.git
This release was built from the `linaro_binutils-2_23_2-2013_10-4_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
### About Linaro eglibc
Linaro eglibc is a release of the eglibc C library with bug fixes and
enhancements for ARM platforms. eglibc is a variant of the GNU libc
designed to work well on embedded systems.
### Linaro eglibc 2.18 2013.10
The Linaro Toolchain Working Group is pleased to announce the 2013.10
release of Linaro eglibc 2.18, the second release in the 2.18 series.
This release is based on the latest upstream eglibc 2.18 stable branch,
but with additional features and bug fixes.
#### Additional Features
* AArch64 profiling support
* Optimized strlen for ARMv6T2
* Small enhancement to memcpy performance
* ARM pointer encryption support
#### Bug Fixes
* Fix for integer overflows in memalign/pvalloc/valloc
### Source
#### Release Tarball
* https://releases.linaro.org/13.10/components/toolchain/eglibc-linaro
#### Development Tree
* git://git.linaro.org/toolchain/eglibc.git
This release was built from the `linaro_eglibc-2_18-2013_10_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
== Issue ==
* AArch64 frame grows downward: no feedback yet.
== Progress ==
* Disable-peeling: Vectorizer cost model has been changed upstream,
quick look at benchmark results show little difference between before
and after the change. Need to analyze further, since I expected the
regressions previously identified with my patch to appear here too.
* AArch64 bootstrap failure: succesfully bootstrapped in the model.
* GCC trunk validation:
- improved configurability (default cpu, fpu, mode, testsuite flags
are selectable)
- requested feedback to build the list of desirable combinations to validate
* Backports/release 2013.10
- a few more backports completed
- re-trying to backport the ILP32 and refactoring series proves
again to be tricky, but helped identify backports which had escaped
from the list.
- cbuild has disk full again
* GCC Neon intrinsics testsuite:
-- posted a proposition to add my executable tests to the existing
framework. No feedback yet.
== Next ==
* Make 2013.10 releases, both with the historical process and using
cbuildv2, in parallel
* Disable-peeling/new vectorizer cost model: analyze bench results
