== This week ==
* Committed interleaved load/store vectorisation changes upstream.
* Merged the vldN and vstN intrinsic improvements into Linaro 4.5 and 4.6.
(Thanks for the quick reviews here.)
* Backported the interleaved load/store vectorisation changes to Linaro
4.5 and 4.6. This took a while because the patch series touches
turbulent code. Submitted merge requests.
* Merged Sergey Grechanik's NEON reload improvement into Linaro 4.5
and 4.6.
* Got ready for summit.
Richard
Hi,
* finished libunwind support of detection and handling of signal frames on
ARM Linux. RT and non-RT signal frames are handled for both >=2.6.18 and
<2.6.18 kernels. The *test-resume-sig testcases are passing now.
* briefly looked into what needs to be done in order to add 64bit __sync_*
ops
* prepared for LDS
Regards
Ken
RAG:
Red:
Amber:
Green: GSoC QEMU student project approved
Current Milestones:
| Planned | Estimate | Actual |
qemu-linaro 2011-05 | 2011-05-19 | 2011-05-19 | |
Historical Milestones:
finish qemu-cont-integration | 2011-01-25 | 2011-01-25 | handed off |
first qemu-linaro release | 2011-02-08 | 2011-02-08 | 2011-02-08 |
qemu-linaro 2011-03 | 2011-03-08 | 2011-03-08 | 2011-03-08 |
qemu-linaro 2011-04 | 2011-04-21 | 2011-04-21 | 2011-04-21 |
(short week, following holiday)
== merge-correctness-fixes ==
* some minor patches committed: SPARC build issues, Neon UNDEFs,
restore base reg properly for Thumb LDMs that abort midway
* v2 of configure patch to print list of valid targets
* some work on fixing QEMU FPSCR status flags (last remaining item
in this blueprint); submitted a patchset fixing everything except
the various VCVT instructions (which have trickier softfloat bugs)
* submitted patch fixing NaN behaviour in VMLA/VMLS/VNMLA/VNMLS
== other ==
* the Google Summer of Code QEMU project to work on upstreaming
some of the Android emulator has been approved; I will be mentoring
Patrick Jackson, who is the student who will be doing this work
* qemu-linaro 2011-05 is unlikely to have any code changes since 2011-04;
we might release it anyway just because it's the final one of the cycle
Current qemu patch status is tracked here:
https://wiki.linaro.org/PeterMaydell/QemuPatchStatus
Absences:
13-19 May: UDS, Budapest
(maybe but unlikely) 15-16 August: QEMU/KVM strand at LinuxCon NA,
Vancouver [LinuxCon proper follows on 17-19th]
There's already a couple of tools-related questions on here. We should
probably make sure we monitor it regularly.
This isn't to hard, once you're signed up, you can mark certain topics
as 'interesting' and then you'll get email notifications when there's a
post.
Andrew
-------- Original Message --------
Subject: Linaro forums replaced by "Ask Linaro"
Date: Fri, 06 May 2011 15:58:53 +0200
From: Michael Opdenacker <michael.opdenacker(a)linaro.org>
Organization: Linaro
To: everyone <everyone(a)linaro.org>
Greetings,
We are pleased to announce the replacement of our forums by a new "Ask
Linaro" service.
Better than forums, we expect this service to bring more questions and
answers, and incite people to join the Linaro community by sharing their
experience.
We count on your participation.
See http://ask.linaro.org/
Cheers,
Michael.
--
Michael Opdenacker - Community Manager
Linaro, http://linaro.org
Cell: +33 621 604 642
IRC: 'opm' in #linaro on irc.freenode.net
Hi all,
We seem to have had an accident!
This morning I merged one of my patches to lp:gcc-linaro/4.6, and this
afternoon I got an email from Launchpad notifying me that a mystery
revision had been deleted.
It seems that Richard has somehow overwritten my change with his.
Luckily I've spotted it and will fix it now, but it could very easily
have got lost.
I'm not sure what's happened here, but I'm pretty sure bzr does not just
do this silently. I thought you needed to specify --overwrite to do this
on purpose, but perhaps there's a bzr bug here?
Anyway, could everyone please be very careful when they do bzr push to
the release branches.
Thanks
Andrew
Hello,
[1] Regarding the patch 'Support closing_branch_deps'
http://gcc.gnu.org/ml/gcc-patches/2011-03/msg00350.html
Continued discussions with Ayal Zaks (SMS maintainer) regrading this patch.
(http://gcc.gnu.org/ml/gcc-patches/2011-05/msg00250.html)
I'm now working on simplifying the patch for resubmission according the
recommendation.
[2] Regarding the patch 'Avoid considering debug_insn when calculating SCCs'
http://gcc.gnu.org/ml/gcc-patches/2011-04/msg01294.html The problem exposed
while testing patch [3] and it seems that is part of a bigger problem -- SMS
does not support debug_insn properly.
I've asked Alexandre Oliva who inserted the support for debug_insn to haifa
sched and selective sched to help with that.
[3] Regarding the patch 'Support instructions with REG_INC_NOTE'
http://gcc.gnu.org/ml/gcc-patches/2011-04/msg01309.html
The fix for debug_insn (which the patch [2] tries to solve) is needed for
bootstrapping this patch. So I'm putting it on hold for now.
Thanks,
Revital
Hi,
- backported vzip fix to GCC 4.5 and 4.6 (PR 48252)
- merged auto-detection of vector size patch to gcc-linaro 4.6
- started looking into vectorization of ffmpeg
Ira
Hi,
I am trying add usb gadget mass storage to uboot , and got run-time
abortion on usbmsd.c with the default u-boot Os option. I use linaro
2011.03 4.5.3 version, and my trials as following:
1) During debugging , I found the abort exception in
usbmsd_init_strings(). if declaring it with noinline function, like
static void usbmsd_init_strings (void)
__attribute__((noinline));
it works, however, next steps still failed.
2) compling uboot with O0, everyhing is ok.
3) try other toolchain. It works with codesourcery's 2011.03-41
and ubuntu 4.5 version, while failed with 2011.04 4.5 linaro version.
4) I have dumped the obj files, seeming some funcs optimized
,analysing the details is out of my knowledge, :( . please check the
src and objdump files in one compressed file)
toolchain:
ypluo@ypluo-dt:~/work/Current/L38EVB/Main/out/prima2cb$
arm-none-linux-gnueabi-gcc --v
Using built-in specs.
COLLECT_GCC=arm-none-linux-gnueabi-gcc
COLLECT_LTO_WRAPPER=/home/ypluo/work/Current/Tools/toolchain/linaro-201103-csr-build-armv7-vfpv3_x86_32/bin/../libexec/gcc/arm-none-linux-gnueabi/4.5.3/lto-wrapper
Target: arm-none-linux-gnueabi
Configured with:
/media/8ccb10fd-862c-47d2-99fb-144e7188e1fb/home/vmuser/development/toolchain/build-toolchain/gcc-linaro-4.5-2011.03-0/configure
--target=arm-none-linux-gnueabi
--prefix=/media/8ccb10fd-862c-47d2-99fb-144e7188e1fb/home/vmuser/development/toolchain/build-toolchain/tools
--enable-languages=c,c++ --with-arch=armv7-a --with-float=softfp
--with-fpu=vfpv3-d16 --with-mode=thumb --enable-shared
--enable-multiarch --enable-threads=posix --enable-nls
--enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --disable-werror
--with-pkgversion='Ubuntu/Linaro 4.5-2011.3-csr-build'
--enable-poison-system-directories
Thread model: posix
gcc version 4.5.3 20110221 (prerelease) (Ubuntu/Linaro 4.5-2011.3-csr-build)
ypluo@ypluo-dt:~/work/Current/L38EVB/Main/out/prima2cb$
/home/ypluo/mywork/toolchain/arm-2011.03/bin/arm-none-linux-gnueabi-gcc --v
Using built-in specs.
COLLECT_GCC=/home/ypluo/mywork/toolchain/arm-2011.03/bin/arm-none-linux-gnueabi-gcc
COLLECT_LTO_WRAPPER=/mywork/toolchain/arm-2011.03/bin/../libexec/gcc/arm-none-linux-gnueabi/4.5.2/lto-wrapper
Target: arm-none-linux-gnueabi
Configured with:
/scratch/janisjo/arm-linux-lite/src/gcc-4.5-2011.03/configure
--build=i686-pc-linux-gnu --host=i686-pc-linux-gnu
--target=arm-none-linux-gnueabi --enable-threads --disable-libmudflap
--disable-libssp --disable-libstdcxx-pch
--enable-extra-sgxxlite-multilibs --with-arch=armv5te --with-gnu-as
--with-gnu-ld --with-specs='%{save-temps: -fverbose-asm}
%{funwind-tables|fno-unwind-tables|mabi=*|ffreestanding|nostdlib:;:-funwind-tables}
-D__CS_SOURCERYGXX_MAJ__=2011 -D__CS_SOURCERYGXX_MIN__=3
-D__CS_SOURCERYGXX_REV__=41 %{O2:%{!fno-remove-local-statics:
-fremove-local-statics}}
%{O*:%{O|O0|O1|O2|Os:;:%{!fno-remove-local-statics:
-fremove-local-statics}}}' --enable-languages=c,c++ --enable-shared
--enable-lto --enable-symvers=gnu --enable-__cxa_atexit
--with-pkgversion='Sourcery G++ Lite 2011.03-41'
--with-bugurl=https://support.codesourcery.com/GNUToolchain/
--disable-nls --prefix=/opt/codesourcery
--with-sysroot=/opt/codesourcery/arm-none-linux-gnueabi/libc
--with-build-sysroot=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/libc
--with-gmp=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-mpfr=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-mpc=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-ppl=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic
-lm' --with-cloog=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-libelf=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--disable-libgomp --enable-poison-system-directories
--with-build-time-tools=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/bin
--with-build-time-tools=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/bin
Thread model: posix
gcc version 4.5.2 (Sourcery G++ Lite 2011.03-41)
Please let me know if other info needed.
Many thanks.
Yuping
Hi,
I am trying add usb gadget mass storage to uboot , and got
run-time abortion on usbmsd.c with the default u-boot Os option. I
use linaro 2011.03 4.5.3 version, and my trials as following:
1) During debugging , I found the abort exception in
usbmsd_init_strings(). if declaring it with noinline function, like
static void usbmsd_init_strings (void) __attribute__((noinline));
it works, however, next steps still failed.
2) compling uboot with O0, everyhing is ok.
3) try other toolchain. It works with codesourcery's 2011.03-41
and ubuntu 4.5 version, while failed with 2011.04 4.5 linaro version.
4) I have dumped the obj files, seeming some funcs optimized ,
analysing the details is out of my knowledge, :( . please check the
attached three files.
toolchain:
ypluo@ypluo-dt:~/work/Current/L38EVB/Main/out/prima2cb$
arm-none-linux-gnueabi-gcc --v
Using built-in specs.
COLLECT_GCC=arm-none-linux-gnueabi-gcc
COLLECT_LTO_WRAPPER=/home/ypluo/work/Current/Tools/toolchain/linaro-201103-csr-build-armv7-vfpv3_x86_32/bin/../libexec/gcc/arm-none-linux-gnueabi/4.5.3/lto-wrapper
Target: arm-none-linux-gnueabi
Configured with:
/media/8ccb10fd-862c-47d2-99fb-144e7188e1fb/home/vmuser/development/toolchain/build-toolchain/gcc-linaro-4.5-2011.03-0/configure
--target=arm-none-linux-gnueabi
--prefix=/media/8ccb10fd-862c-47d2-99fb-144e7188e1fb/home/vmuser/development/toolchain/build-toolchain/tools
--enable-languages=c,c++ --with-arch=armv7-a --with-float=softfp
--with-fpu=vfpv3-d16 --with-mode=thumb --enable-shared
--enable-multiarch --enable-threads=posix --enable-nls
--enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --disable-werror
--with-pkgversion='Ubuntu/Linaro 4.5-2011.3-csr-build'
--enable-poison-system-directories
Thread model: posix
gcc version 4.5.3 20110221 (prerelease) (Ubuntu/Linaro 4.5-2011.3-csr-build)
ypluo@ypluo-dt:~/work/Current/L38EVB/Main/out/prima2cb$
/home/ypluo/mywork/toolchain/arm-2011.03/bin/arm-none-linux-gnueabi-gcc
--v
Using built-in specs.
COLLECT_GCC=/home/ypluo/mywork/toolchain/arm-2011.03/bin/arm-none-linux-gnueabi-gcc
COLLECT_LTO_WRAPPER=/mywork/toolchain/arm-2011.03/bin/../libexec/gcc/arm-none-linux-gnueabi/4.5.2/lto-wrapper
Target: arm-none-linux-gnueabi
Configured with:
/scratch/janisjo/arm-linux-lite/src/gcc-4.5-2011.03/configure
--build=i686-pc-linux-gnu --host=i686-pc-linux-gnu
--target=arm-none-linux-gnueabi --enable-threads --disable-libmudflap
--disable-libssp --disable-libstdcxx-pch
--enable-extra-sgxxlite-multilibs --with-arch=armv5te --with-gnu-as
--with-gnu-ld --with-specs='%{save-temps: -fverbose-asm}
%{funwind-tables|fno-unwind-tables|mabi=*|ffreestanding|nostdlib:;:-funwind-tables}
-D__CS_SOURCERYGXX_MAJ__=2011 -D__CS_SOURCERYGXX_MIN__=3
-D__CS_SOURCERYGXX_REV__=41 %{O2:%{!fno-remove-local-statics:
-fremove-local-statics}}
%{O*:%{O|O0|O1|O2|Os:;:%{!fno-remove-local-statics:
-fremove-local-statics}}}' --enable-languages=c,c++ --enable-shared
--enable-lto --enable-symvers=gnu --enable-__cxa_atexit
--with-pkgversion='Sourcery G++ Lite 2011.03-41'
--with-bugurl=https://support.codesourcery.com/GNUToolchain/
--disable-nls --prefix=/opt/codesourcery
--with-sysroot=/opt/codesourcery/arm-none-linux-gnueabi/libc
--with-build-sysroot=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/libc
--with-gmp=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-mpfr=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-mpc=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-ppl=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic
-lm' --with-cloog=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--with-libelf=/scratch/janisjo/arm-linux-lite/obj/host-libs-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr
--disable-libgomp --enable-poison-system-directories
--with-build-time-tools=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/bin
--with-build-time-tools=/scratch/janisjo/arm-linux-lite/install/arm-none-linux-gnueabi/bin
Thread model: posix
gcc version 4.5.2 (Sourcery G++ Lite 2011.03-41)
Please let me know if other info needed.
Many thanks.
Yuping
