I've lost track of the benchmark builds so I've started a manual todo list at:
https://wiki.linaro.org/MichaelHope/Sandbox/Todo
It's been messy with the validation lab being down and some builds
being in my home office and some in Cambridge. Let me know if I'm
missing any.
-- Michael
Hi folks,
We really need to push on with getting the loader path for armhf
standardised. The path that was agreed months ago is
/lib/arm-linux-gnueabihf/ld-linux.so.3
but clearly not everybody is using that yet. Dann has just posted an
updated patch for gcc, and we want to get this reviewed / fixed up /
accepted ASAP. Then we may need to backport it to older gcc releases.
This is *important* so that we can help vendors release binaries that
work on any hard-float distribution. For people who have made binaries
that still use the old, broken location /lib/ld-linux.so.3, we can put
symlinks in place *for now* but in the longer term as many distros
switch to multi-arch the symlink is not an acceptable solution.
I'm working on a more complete spec document for armhf to help us with
this kind of thing, but it's not going as smoothly as I'd hoped and I
don't want to wait for that as a blocker on the linker path.
Cheers,
--
Steve McIntyre steve.mcintyre(a)linaro.org
<http://www.linaro.org/> Linaro.org | Open source software for ARM SoCs
Current Milestones:
|| || Planned || Estimate || Actual ||
||cp15-rework || 2012-01-06 || 2012-06-23 || ||
Historical Milestones:
||initial-a15-system-model || 2012-01-27 || 2012-01-27 || 2012-01-17 ||
||qemu-kvm-getting-started || 2012-03-04?|| 2012-03-04 || 2012-02-01 ||
== other ==
* cleaned up and refactored QEMU GIC/NVIC code enough to provide
a solid foundation for the in-kernel irqchip support. Posted
the refactoring bits to qemu-devel. This should be enough to
unblock Marc Z.
* qemu-linaro: LP:978694: added patch from Peter Chubb fixing
beagle bootrom FAT12/FAT16 handling
* finished a trivial bit of cleanup of an omap3 ID register patch
I'd had lying around half-done for a while
* investigating a bug reported by Alex Graf where we get a segfault
gtk-query-immodules-2.0 but only if qemu's 'reserve memory space'
feature is being used: this appears to be an interestingly nasty
case where if the guest does mmap(dll); execute code in dll;
munmap(); mmap(dll 2); execute code in dll 2; and the two mmap()s
happened to pick the same address then we will end up using a
stale cached translation from dll 1 when executing dll 2...
-- PMM
== GCC ==
* Completed testing and benchmarking of patch to use vld1/vstd1
instead of vldm/vstdm for vector moves. Saw no regressions but
only minor benefits.
* Checked in patch to fix LP #959242 (GCC PR tree-optimization/52633)
to FSF mainline and 4.7 branch; backports to Linaro GCC 4.7 and 4.6
pending.
* Checked in mainline patch to enable -fsched-pressure by default
on s390.
* Ongoing work on improving end-of-loop value computation.
* Started investigation of TSVC vectorizer test kernels.
Mit freundlichen Gruessen / Best Regards
Ulrich Weigand
--
Dr. Ulrich Weigand | Phone: +49-7031/16-3727
STSM, GNU compiler and toolchain for Linux on System z and Cell/B.E.
IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Martin Jetter | Geschäftsführung: Dirk
Wittkopp
Sitz der Gesellschaft: Böblingen | Registergericht: Amtsgericht
Stuttgart, HRB 243294
Hi Uli,
While looking into something else I ran into these - I wonder how many
of these GCC manages to vectorize ...
http://www.netlib.org/benchmark/livermorec . These look interesting
from a vectorizer kernels point of view.
The other interesting paper of note was this PACT paper on
vectorization benchmarks comparing icc , xlc and GCC which might
provide some interesting hints / reading.
http://polaris.cs.uiuc.edu/~garzaran/doc/pact11.pdf . The appropriate
benchmarks kernels are linked to below.
http://polaris.cs.uiuc.edu/ ̃maleki1/TSVC.tar.gz.
regards,
Ramana
I've put the agenda for Monday's call at:
https://wiki.linaro.org/WorkingGroups/ToolChain/Meetings/2012-05-07
which is:
* Review action items from last meeting
* Connect sessions:
* GDB for Android
* GCC performance call - Live!
* KVM performance
* Renderscript
* Android benchmarking
* Dalvik improvements
* Hard float switchover status
* multiarch upstreaming
* Next week is release week
* vld1, EEMBC results, and noise
* twolf result variance
* KVM minimum features
* UP/UP, Ubuntu
* [[MichaelHope/Sandbox/KVMUseCase]]
Feel free to edit,
-- Michael
I've done some minor updates to the instructions for working with
gcc-linaro, bzr, and merge requests at:
https://wiki.linaro.org/WorkingGroups/ToolChain/BzrTips
The interesting changes are using:
* bzr commit --fixes=lp:nnnn to link a branch to a bug number
* bzr branch --hardlink to cut down on branch time and disk usage
* bzr-merge-changelog to automatically merge ChangeLog.linaro
-- Michael
Greetings,
I successfully built BusyBox using the 4.5.2 toolchain. When I try to build BusyBox using the same config with the 4.6.3 toolchain I get the following error:
The Linaro 4.5.2 toolchain was installed in my Ubuntu 11.04 distro using aptitude.
The Linaro 4.6.3 toolchain binaries, downloaded via Launchpad, were installed into my own tools directory.
busybox # make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-
scripts/kconfig/conf -s Config.in
can't find file Config.in
make[2]: *** [silentoldconfig] Error 1
make[1]: *** [silentoldconfig] Error 2
make: *** [include/autoconf.h] Error 2
I get the same error if I try 'make oldconfig' or 'make menuconfig'.
Is there a PATH I need to set? Am I missing a package?
Right now my PATH has following 4.6.3 directories set:
linaro-4.6.3/bin
linaro-4.6.3/arm-linux-gnueabi/libc/usr/include
linaro-4.6.3/arm-linux-gnueabi/libc/lib/arm-linux-gnueabi
linaro-4.6.3/arm-linux-gnueabi/libc/usr/include
Thanks,
Dan
