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Performance improvements hacking time at Connect Q4.11

by Ramana Radhakrishnan

Hi Folks, I've been trying to capture what we want to do in terms of hacking time and some of the performance related backlog that we have in the system. I have done so here. https://wiki.linaro.org/RamanaRadhakrishnan/Sandbox/Q411ConnectGCCPerfPlan I'm on vacation tomorrow but should be picking email for sometime during the day. Thoughts about what else we could be doing in this area or if there's a better way we could use our hacking time. cheers Ramana ---

14 years, 6 months

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Building gcc-linaro 4.6 2011.10 on ubuntu 11.10 32bit for cortex-a9

by Bruno Niklaus

hi@all i try to build the linaro-gcc on a ubuntu host 11.10 32 bit for a cortex a9. but it doenst build to the end. this is the first time ever i try to build a toolchain on my own, so excuse me if its just a beginner-mistake. somebody has any idea? configured like this *./configure --target=arm-linux-gnueabi --disable-bootstrap --enable-languages=c,c++ --with-mode=thumb --with-arch=armv7-a --with-tune=cortex-a9 --with-fpu=neon --with-float=softfp --prefix=/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10* * * no errors when configuring, but it fails during building with this error: *checking for suffix of object files... configure: error: in `/home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/arm-linux-gnueabi/libgcc': * *configure: error: cannot compute suffix of object files: cannot compile* *See `config.log' for more details.* *make[1]: *** [configure-target-libgcc] Fehler 1* *make[1]: Verlasse Verzeichnis '/home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src'* *make: *** [all] Fehler 2* when i check the ./arm-linux-gnueabi/libgcc/config.log the errors which return 1 are: *configure:3028: /home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/xgcc -B/home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/ -B/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/bin/ -B/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/lib/ -isystem /home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/include -isystem /home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/sys-include -V >&5* *xgcc: error: unrecognized option '-V'* *xgcc: fatal error: no input files* *compilation terminated.* *configure:3039: $? = 1* *configure:3028: /home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/xgcc -B/home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/ -B/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/bin/ -B/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/lib/ -isystem /home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/include -isystem /home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/sys-include -qversion >&5* *xgcc: error: unrecognized option '-qversion'* *xgcc: fatal error: no input files* *compilation terminated.* *configure:3039: $? = 1* *configure:3055: /home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/xgcc -B/home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/ -B/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/bin/ -B/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/lib/ -isystem /home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/include -isystem /home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/sys-include -o conftest -g -O2 conftest.c >&5* */home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/as: line 87: exec: -m: invalid option* *exec: usage: exec [-cl] [-a name] [command [arguments ...]] [redirection ...]* *configure:3058: $? = 1* *configure:3246: checking for suffix of object files* *configure:3268: /home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/xgcc -B/home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/ -B/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/bin/ -B/home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/lib/ -isystem /home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/include -isystem /home/user/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10/arm-linux-gnueabi/sys-include -c -g -O2 conftest.c >&5* */home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/host-i686-pc-linux-gnu/gcc/as: line 87: exec: -m: invalid option* *exec: usage: exec [-cl] [-a name] [command [arguments ...]] [redirection ...]* *configure:3272: $? = 1* *configure: failed program was:* *| /* confdefs.h */* *| #define PACKAGE_NAME "GNU C Runtime Library"* *| #define PACKAGE_TARNAME "libgcc"* *| #define PACKAGE_VERSION "1.0"* *| #define PACKAGE_STRING "GNU C Runtime Library 1.0"* *| #define PACKAGE_BUGREPORT ""* *| #define PACKAGE_URL "http://www.gnu.org/software/libgcc/"* *| /* end confdefs.h. */* *| * *| int* *| main ()* *| {* *| * *| ;* *| return 0;* *| }* *configure:3286: error: in `/home/bruno/pandaboard/linaro/gcc-linaro-4.6-2011.10_src/arm-linux-gnueabi/libgcc': * *configure:3289: error: cannot compute suffix of object files: cannot compile* *See `config.log' for more details.*

14 years, 6 months

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ARM eglibc: adding ucontext?

by Peter Maydell

At the moment ARM eglibc doesn't support the functions declared in ucontext.h: getcontext(), setcontext(), swapcontext() and makecontext(). Instead you get implementations which always fail and set errno to ENOSYS. QEMU uses these functions to implement coroutines. Although there is a fallback implementation in terms of threads, there are reasons why using the fallback is suboptimal: * its performance is worse * it will be less tested, because x86_64 and i386 both implement the ucontext functions and so QEMU on those hosts will be using different code paths * I'm not aware of a good way at configure time to detect whether getcontext() et al will always fail without actually running a test binary, which won't work in a cross-compile setup. (If eglibc just didn't provide the functions at all this would be much simpler...) We're going to care about performance and reliability of QEMU on ARM hosts as we start to support KVM on Cortex-A15, so it would be good if we could add ucontext function support to eglibc as part of that effort. Opinions? Have I missed some good reason why there isn't an ARM implementation of these functions? (I'm aware that the ucontext functions have been removed from the latest version of the POSIX spec; however AFAIK there's no equivalent functionality that replaces them so I think they're still worth having implementations of for parity with other architectures.) -- PMM

14 years, 6 months

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[Activity] Week ending 21st Oct 2011

by Ramana Radhakrishnan

==Progress=== * Some upstream patch review. * Spent time looking at LP 836588 which is a case where CSE removes a particular label access in one case but doesn't remove it from the list of things in the constant pool which is quite bizarre. Will probably need some help with looking into this one. * Sent out vcvt.f32 and vcvt.f64 patches . * Connect preparation - laptop cleanup and getting it finally onto an x86_64 distribution. * Looked at some of the vec_perm / vec_rev cases in Neon with Ira. * Spent some time looking at some of Andrew's issues with generic-v7a tuning especially the cases where it was doing better and gave some suggestions. === Plans === * Prepare for Connect. * Prepare by looking at some of the large differences between various comparative benchmarks. * Some research into PGO related stuff. * Try to upstream some more of my patches in the backlog before the end of the week. * Finish off some internal paperwork. * I'm off on 26th - Wednesday. Absences. * 26th Oct - Day off. * 31st Oct - 4th Nov - Linaro Connect Q4.11 * 08 Nov - 11 Nov - Tentatively booked * Dec 19 - 31st Dec - Tentatively booked

14 years, 6 months

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[ACTIVITY] 17th - 21st October

by Andrew Stubbs

Continued looking at my constant reuse optimization. I've identified a couple of hundred optimization opportunities in the whole of gcc itself, which is fewer than I had hoped. There are almost no opportunities when compiling for size as constants are always loaded from a constant pool in that case (I'm not sure why that's the case, given that this isn't any more space efficient than movw+movt, unless it can share the constant in more than one place). Backported my -mtune=native patch to Linaro GCC. Backported my generic tuning patch to Linaro GCC. Backported my pr50717 patch to Linaro, and pushed to Launchpad for testing. Analysed my benchmark results I made to aid generic tuning. Disappointingly the A8/A9 tuning is not as beneficial as one would like. In fact, the existing generic tuning patch (which was supposed to be a framework only) is actually quite competitive and gives better performance in some cases. Set more benchmarks running, this time with NEON enabled. That's about 36 hour's worth on A9, and more like 90 hours on my A8 (obviously, there's some difference in the clock speeds there). Discovered that my native tuning code won't compile with a C++ compiler (GCC Bugzilla PR50809). Tested and committed a fix upstream.

14 years, 6 months

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[ACTIVITY] weekly status

by Revital Eres

Hello, Continue the implementation of estimating register pressure in SMS. Discussed with Richard some issue raised while implementing. Revital

14 years, 6 months

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[ACTIVITY] Oct 17 - Oct 21

by Ulrich Weigand

== GDB == * Worked on support for cross-platform core file generation. Posted initial set of patches for comments. * Created "Toolchain support for kernel debugging" blueprint. 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

14 years, 6 months

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[ACTIVITY] weekly status

by Ken Werner

Hi, I made some progress on transforming the hacks I did to get libunwind working on Android into proper patches that can go upstream. Things learned: * bionic employs OpenBSD header files that therefore lack some GNU and ARM specific defines (only small fix needed - plan is to change libunwind to work with non-patched bionic too) * Android basically provides all the functionality that is required for libunwind-ptrace - but... * no one seems to build libunwind with remote unwind functionality (including libunwind-ptrace) only * most of the issues can be avoided by changing libunwind to be more portable Regards Ken

14 years, 6 months

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[ACTIVITY] w42

by Asa Sandahl

* Still having trouble with using multistrap/pdebuild-cross for cross-compiling Firefox - it looks like only x86 packages get downloaded, not armel. I have asked Wookey for advice, and he will try to reproduce the build. * Falling back to native compiling until the cross-compiling set up has been sorted out. I will now take a look at how to pass different compiler options to the Mozilla build system and how to build different parts of the program. Best Regards Åsa

14 years, 6 months

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[ACTIVITY] report week 42

by Peter Maydell

(short week: 4 days) RAG: Red: Amber: Green: blog started :-) http://translatedcode.wordpress.com/ Current Milestones: || || Planned || Estimate || Actual || ||a15-usermode-support || 2011-11-10 || 2011-11-10 || || ||upstream-omap3-cleanup || 2011-11-10 || 2011-11-10 || || Historical Milestones: ||qemu-linaro-2011-07 || 2011-07-21 || 2011-07-21 || 2011-07-21 || ||qemu-linaro 2011-08 || 2011-08-18 || 2011-08-18 || 2011-08-18 || ||qemu-linaro 2011-09 || 2011-09-15 || 2011-09-15 || 2011-09-15 || ||add-omap3-networking || 2011-10-13 || 2011-10-13 || 2011-10-13 || ||a15-systemmode-planning || 2011-10-13 || 2011-10-13 || 2011-09-22 || == other == * upstream patch review, putting together pull requests * more time spent on qemu on ARM host apparent memory corruption bug (no luck yet :-(); found a Valgrind bug in the process, though (KDE:284472). This ate up way too much of this week. * A15 KVM planning work * meetings etc * moved over to patches.linaro for QEMU patch tracking -- PMM

14 years, 6 months

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[ACTIVITY] October 16-19

by Ira Rosen

Hi, * widening shifts - finally committed upstream * SLP loads with different offsets and operand swaps - committed upstream * SLP with multiple types - merged to gcc-linaro-4.6 * vectorizer stuff: patch review, test fixes, discussions, bug fix * Ramana and I discussed what can be done with VEC_PERM_EXPR for NEON, and created https://blueprints.launchpad.net/gcc-linaro/+spec/support-vec-perm for this issue. Ira

14 years, 7 months

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64 bit operations

by Michael Hope

Following on from last night's performance call, I had a look at how 64 bit integer operations are mapped to NEON instructions. The summary is: * add - fine * subtract - fine * bitwise and - fine * bitwise or - fine * bitwise xor - fine * multiply - can't as the instruction tops out at 32 bits. Might be able to compose using VMLAL * div, mod - no instruction * negate - instruction tops out at 32 bits, but could be turned into vmov #0, vsub * left shift constant - missing * right shift constant - missing * right arithmetic shift constant - missing * left shift register - missing * right shift register - tricky, as you do this as a left shift -register * not - no instruction, but could be done through a vceq, #0? * bitwise not - missing I also noticed that the replicated constants aren't being used. A pre-increment is load constant pool; vadd but could be done as a vmov, #-1; vsub. The same with pre-decrement - it could be done as a vmov, #-1; vadd. This seems worth blueprinting. -- Michael

14 years, 7 months

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agenda for today's call.

by Ramana Radhakrishnan

https://wiki.linaro.org/WorkingGroups/ToolChain/Meetings/2011-10-18 I don't have much for this week personally given I've had 2 very short weeks. Ramana

14 years, 7 months

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limits-fndefn.c and timeouts

by Michael Hope

limits-fndefn.c takes an impressively long time to run. On an idle machine, -O3 -g -c takes 17:31 and -O2 -g -c takes The test already has a dg-timeout-factor of 4 giving a total timeout of 20 minutes. Removing the -g brings this down to 30 s. Keeping the -g and adding -fno-var-tracking brings this down to 45 s. We could bump the multiplier up to 8 but it's getting a bit ridiculous. Any thoughts? -- Michael

14 years, 7 months

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[ACTIVITY] Weekly status

by Richard Sandiford

== Last week and today == * Backported fix for returning std::pair<bool, bool>. Unfortunately this showed up a regression on 4.5. I couldn't reproduce it cross, and the testcase itself looks innocuous, so I'm wondering whether the patch might trigger a miscompilation of cc1plus. * Committed SMS register-scheduling patches upstream and backported to Linaro 4.6. * Most of the week spent on -fsched-pressure. Still trying a few variations in order to get the right balance. (My local haifa-sched.c now has about 20 new toggles.) Still feel like I'm making progress, rather than hitting the point of diminishing returns. Hope Connect goes well. See everyone in a few weeks' time. Richard

14 years, 7 months

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[ACTIVITY] 10th - 14th October

by Andrew Stubbs

Completed the 4.5 and 4.6 FSF to Linaro merges. Spun the Linaro GCC release tarballs, uploaded them to the test farm, and set off the test builds. Continued looking at the constant reuse optimization. This time I've build GCC itself with the new pass to see how many optimization opportunities there are. This shook out a lot more small bugs, which was useful. Backported my negative-shifts patch to Linaro 4.6, pushed it to Launchpad for testing, and then committed it to 4.6 once in was approved. Experimented with running SPEC2K on A8 and A9 boards in order to establish a baseline for the generic tuning tweaks. A short test doesn't give much clue as to what can be achieved, and a long test takes way too long. The problem is also complicated by the benchmarks where the A8 tuning works better on A9 than A9 tuning does. :S Received a bug report (GCC bugzilla 50717) for my widening multiplies patches. Analysed the problem, developed a patch, and posted it to gcc-patches.

14 years, 7 months

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[Activity] Week ending 14th October 2011

by Ramana Radhakrishnan

<Short week with 2 days gone on an internal training course> ==Progress=== * Some patch review. * Spent time looking at LP 836588. * Tried some different approaches for the vcvt.f64.s32 case and it looks like the simple solution is the best one unfortunately :( * 2 days off at internal training course. === Plans === * continue looking into LP 836588 * Patch review week/ * Work on getting vcvt.f* case done and finish some of the backlog. Absences. * 31st Oct - 4th Nov - Linaro Summit Orlando - Travel booked - * 08 Nov - 11 Nov - Tentatively booked * Dec 19 - 31st Dec - Tentatively booked

14 years, 7 months

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Screwy panda timing?

by David Gilbert

I've just tried rerunning some benchmarks on my panda, which I reinstalled recently and am getting some odd behaviour: The kernel is 3.0.0-1404-linaro-lt-omap For example: simple_strlen: ,102400, loops of ,62, bytes=6.054688 MB, transferred in ,20324707.000000 ns, giving, 297.897898 MB/s simple_strlen: ,102400, loops of ,32, bytes=3.125000 MB, transferred in ,7904053.000000 ns, giving, 395.366782 MB/s simple_strlen: ,102400, loops of ,16, bytes=1.562500 MB, transferred in ,7354736.000000 ns, giving, 212.448142 MB/s simple_strlen: ,102400, loops of ,8, bytes=0.781250 MB, transferred in ,91553.000000 ns, giving, 8533.308575 MB/s simple_strlen: ,102400, loops of ,4, bytes=0.390625 MB, transferred in ,1495361.000000 ns, giving, 261.224547 MB/s simple_strlen: ,102400, loops of ,2, bytes=0.195312 MB, transferred in ,1983643.000000 ns, giving, 98.461518 MB/s Note the 8 byte one apparently 40 times faster, and for true oddness: smarter_strlen_ldrd: ,102400, loops of ,62, bytes=6.054688 MB, transferred in ,3936768.000000 ns, giving, 1537.984331 MB/s smarter_strlen_ldrd: ,102400, loops of ,32, bytes=3.125000 MB, transferred in ,0.000000 ns, giving, inf MB/s smarter_strlen_ldrd: ,102400, loops of ,16, bytes=1.562500 MB, transferred in ,4180909.000000 ns, giving, 373.722557 MB/s Now, while I like infinite transfer rates, I suspect they're wrong. Anyone else seeing this? Dave

14 years, 7 months

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[ACTIVITY] weekly status

by Revital Eres

Implementing estimating register pressure in SMS. Experimenting with the implementation on libav microbench. Discussed with Richard some issue raised while implementing.

14 years, 7 months

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[ACTIVITY] Oct 10 - Oct 14

by Ulrich Weigand

== GDB == * Created and published Linaro GDB 7.3-2011.10 release. * Fixed LP #871901 (Linaro GDB crashes on 3.x kernels) in mainline and Linaro GDB 7.3. * Backported mainline fix for LP #829595 (Separate debuginfo misidentified with "remote:" access) to Linaro GDB 7.3. * Completed blueprint "GDB as a cross-debugger". * Worked on support for cross-platform core file generation. == GCC == * Patch review week. 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

14 years, 7 months

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[ACTIVITY] 2011-10-14

by David Gilbert

== 64 bit atomics == * Thanks to Ramana for OKing my gcc patches; and Richard for committing them - I've backported these to the gcc-linaro branch and pushed it - hopefully those will pass OK! == String routines == * Sent my memchr patch to upstream newlib, received comments, tweeked, and resent * Sent strlen patch to upstream newlib * Spent some time getting confused by timing issues on our Panda; it got reinstalled with 11.09 a few weeks ago and is now showing some odd behaviours. In particular I'm seeing some tests show completion in 0ns (and my code isn't -that- fast!), and others where the times vary wildly - it's almost as if a timer interrupt is delayed or missing; my same test binary works fine on one of Michael's Ursa's running an older install. == QEMU == * Tested Peters QEMU image for release == Other == * Spent an afternoon reading through the System trace docs On holiday next week; I'll poll email occasionally. Dave

14 years, 7 months

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[ACTIVITY] weekly status

by Ken Werner

Hi, * working through my inbox after being away * a former patch of mine accidentally broke remote unwinding on IA64 * maintainer made a quick fix that made things worse for ARM * posted a patch that aims to fix things up for all archs * identified and submitted libunwind-android patches that could go upstream * sent patch that lets another testcase pass on ARM Linux * tried to help people on the mailing list with various issues Regards Ken

14 years, 7 months

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[ACTIVITY] report week 40

by Peter Maydell

RAG: Red: Amber: Green: Current Milestones: || || Planned || Estimate || Actual || ||add-omap3-networking || 2011-10-13 || 2011-10-13 || 2011-10-13 || ||a15-systemmode-planning || 2011-10-13 || 2011-10-13 || 2011-09-22 || ||a15-usermode-support || 2011-11-10 || 2011-11-10 || || ||upstream-omap3-cleanup || 2011-11-10 || 2011-11-10 || || Historical Milestones: ||qemu-linaro 2011-04 || 2011-04-21 || 2011-04-21 || 2011-04-21 || ||qemu-linaro 2011-05 || 2011-05-19 || 2011-05-19 || n/a || ||close out 1105 blueprints || 2011-05-28 || 2011-05-28 || 2011-05-19 || ||complete 1111 planning || 2011-05-28 || 2011-05-28 || 2011-05-27 || ||qemu-linaro-2011-06 || 2011-06-16 || 2011-06-16 || 2011-06-16 || ||qemu-linaro-2011-07 || 2011-07-21 || 2011-07-21 || 2011-07-21 || ||qemu-linaro 2011-08 || 2011-08-18 || 2011-08-18 || 2011-08-18 || ||qemu-linaro 2011-09 || 2011-09-15 || 2011-09-15 || 2011-09-15 || == add-omap3-networking == * patches pushed into qemu-linaro and final testing done == a15-usermode-support == * this is now in qemu-linaro 2011.10; only remaining thing is for the patches to be taken upstream (no major review issues) == linaro-qemu-11.11 == * qemu-linaro 2011.10 released == other == * completed a desk move * some sw/hw archaeology to answer a question about the FIFO size of the PL041 on ARM devboards as part of reviewing audio support patch * trying to track down a really weird problem where qemu on ARM host dies with apparent memory corruption

14 years, 7 months

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[ACTIVITY] w41

by Asa Sandahl

* Working on using pdebuildcross/multistrap when cross compiling Firefox. With multistrap all dependencies should be sorted out automatically. The current status is that pdebuild-cross for armel is set up and the compilation of the Firefox package starts. Does not come all the way though, because some dependencies (for X11) are not in place after all. Will continue investigation. Best Regards Åsa

14 years, 7 months

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upstream planning using Linaro process

by Mounir Bsaibes

A lot of concerns were raised about how to plan for upstreaming work using Linaro process while there is no guarantees for acceptance. Deepak has setup a session to address this issue and come up with a reasonable solution to the problem. In preparation, I have put together this google doc and shared it with all in Linaro. https://docs.google.com/a/linaro.org/document/d/1Inj3Esvk4Lbqe5PN7NHnK1WKRa… Please take a look at this document ahead of the session, if you have a proposal for a solution (or any other feedback) please let us know, so we can add it to the discussion. We are hoping a lot of engineers would provide feedback and attend the session so we can come up with a conclusion. To subscribe to the session please follow: https://blueprints.launchpad.net/linaro/+spec/linaro-general-upstream-proce… Thanks & regards, Mounir -- Mounir Bsaibes Project Manager Follow Linaro.org: facebook.com/pages/Linaro/155974581091106 http://twitter.com/#!/linaroorg http://www.linaro.org/linaro-blog <http://www.linaro.org/linaro-blog>

14 years, 7 months

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