- linaro-toolchain - lists.linaro.org

by Michael Hope

On Wed, Jan 25, 2012 at 7:02 AM, Ulrich Weigand <Ulrich.Weigand(a)de.ibm.com> wrote: > > Hi Michael, > > GDB 7.4 has finally been released. What do we need to do to get the > 7.4-branch imported into Launchpad? I think last time (for 7.3) you did > that somehow ... Done as: lp:~linaro-toolchain-dev/gdb/7.4 and documented at: https://wiki.linaro.org/MichaelHope/Sandbox/GDBImport -- Michael

14 years, 3 months

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QEMU A15 guest writeup

by Michael Hope

Peter, could you review: https://wiki.linaro.org/WorkingGroups/ToolChain/QEMUARMGuestQ411 please? I'm interesting in anything I've missed or exaggerated. The audience is the TSC or people outside Linaro who are interested in a summary of the changes. -- Michael

14 years, 3 months

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Fwd: [cbuild] qemu-linaro-0~20120118+gitcc8661e armv7l completed

by Michael Hope

Hi Zygmunt. I've enabled the ARM native build on the QEMU auto builders. These are built in the validation lab on the Natty based tcpanda boards and end up on control under ~cbuild/cbuild/build/qemu-$version/qemu-$something.tar.xz. I've uploaded this build to http://people.linaro.org/~michaelh/incoming/qemu-armv7l-natty-cbuild236-tcp…. There's something wrong with embedding of the version number into the name. A quick 'does it run' test passes. Peter, could you check the configure log at: http://builds.linaro.org/toolchain/qemu-linaro-0~20120118+gitcc8661e/logs/a… and see if there's anything missing. The auto builders fire with each commit so there's always something up to date. You can list the builds at: http://ex.seabright.co.nz/helpers/buildlog/qemu and see the raw results at: http://builds.linaro.org/toolchain/qemu-linaro-0~20120118+gitcc8661e/logs/a… (after a lag) -- Michael ---------- Forwarded message ---------- From: Linaro Toolchain Builder <michael.hope+cbuild(a)linaro.org> Date: Thu, Jan 26, 2012 at 11:14 AM Subject: [cbuild] qemu-linaro-0~20120118+gitcc8661e armv7l completed To: "linaro-toolchain-builds(a)lists.launchpad.net" <linaro-toolchain-builds(a)lists.launchpad.net> tcpanda05 finished running job qemu-linaro-0~20120118+gitcc8661e on armv7l-natty-cbuild236-tcpanda05-cortexa9r1. The results are here: http://builds.linaro.org/toolchain/qemu-linaro-0~20120118+gitcc8661e 9 PASS 9 TEST This email is sent from a cbuild (https://launchpad.net/cbuild) based bot which is administered by Michael Hope <michael.hope(a)linaro.org>.

14 years, 3 months

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[ANNOUNCE] Linaro Toolchain Binaries 2012.01 released

by Michael Hope

The Linaro Toolchain Working Group is pleased to announce the release of the Linaro Toolchain Binaries, a pre-built version of Linaro GCC and Linaro GDB that runs on generic Linux or Windows and targets the glibc Linaro Evaluation Build. This is the first release. Releases will be made each month shortly after the corresponding source release. Uses include: * Cross compiling ARM applications from your laptop * Remote debugging * Build the Linux kernel for your board What's included: * Linaro GCC 2012.01 * Linaro GDB 2011.12 * A statically linked gdbserver * A system root * Manuals under share/doc/ The system root contains the basic header files and libraries to link your programs against. The Linux version is supported on Ubuntu 10.04.3 and 11.10, Debian 6.0.2, Fedora 16, openSUSE 12.1, Red Hat Enterprise Linux Workstation 5.7 and later, and should run on any Linux Standard Base 3.0 compatible distribution. Please see the README about running on x86_64 hosts. The Windows version is supported on Windows XP Pro SP3, Windows Vista Business SP2, and Windows 7 Pro SP1. The binaries and build scripts are available from: https://launchpad.net/linaro-toolchain-binaries/trunk/2012.01 Need help? Ask a question on https://ask.linaro.org/ Already on Launchpad? Submit a bug at https://bugs.launchpad.net/linaro-toolchain-binaries On IRC? See us on #linaro on Freenode. Other ways that you can contact us or get involved are listed at https://wiki.linaro.org/GettingInvolved. -- Michael

14 years, 3 months

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Re: -fsched-pressure options

by Michael Hope

On Wed, Jan 25, 2012 at 2:33 AM, Ulrich Weigand <Ulrich.Weigand(a)de.ibm.com> wrote: > > Michael, Åsa, > > as discussed in today's performance call, the 4.6 backport of Richard's > sched-pressure enhancements is available here: > https://code.launchpad.net/~rsandifo/gcc-linaro/alt-sched-pressure-4.6 > > To activate the feature, you need to use the options: > > -fsched-pressure -fsched-pressure-algorithm=model Åsa, I think we're ready to spawn benchmark jobs through the build farm. I've made a front end: http://ex.seabright.co.nz/helpers/scheduler/spawn to make it a little easier to use. To spawn a benchmark run, enter a job called benchmarks-<buildname> such as benchmarks-gcc-linaro-4.6+bzr106857~rsandifo~alt-sched-pressure-4.6 and spawn it into the 'test' queue. See the page for how to change the flags and benchmarks that are run. The results end up at: http://ex.seabright.co.nz/benchmarks/ which needs the password from: https://wiki.linaro.org/Internal/ToolChain I've spawned Ulrich's job into the queue as a test run. Let's see how it goes. If it works, you can spawn the ancestor (benchmarks-gcc-linaro-4.6+bzr106856) and later do a diffbench on the results. -- Michael

14 years, 3 months

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Bug triaging: 739305 "[armhf] libffi variadic support"

by Asa Sandahl

Hi, I am looking at ticket 739305 "[armhf] libffi variadic support" which still has status "New" for Linaro gcc. https://bugs.launchpad.net/ubuntu/+source/libffi/+bug/739305 If I understand correctly, David's patch is included in libffi in Oneiric, but not yet backported to Linaro gcc? What is the correct thing to do with this ticket for Linaro GCC? I was thinking it could be set to "Triaged", waiting for an appropriate time to backport. Regards Åsa

14 years, 3 months

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Linaro GCC mentioned in Phoronix article

by Christian Robottom Reis

Spotted this in a Phoronix article today: Overall it seems that most of the computational tests are performing better with the newer Ubuntu 11.10 and 12.04 user-space packages, which upgrades the GNU Compiler Collection to the 4.6 series over the 4.5 release found in Ubuntu 11.04. The 4.6 compiler upgrade with greater ARMv7 architecture enhancements is likely what can be attributed to most of the performance improvements found in this article. [...] See the results for yourself at: http://www.phoronix.com/scan.php?page=article&item=nvidia_tegra2_ubuntu&num… Good job, -- Christian Robottom Reis, Engineering VP Brazil (GMT-3) | [+55] 16 9112 6430 | [+1] 612 216 4935 Linaro.org: Open Source Software for ARM SoCs

14 years, 3 months

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agenda for tomorrow's call.

by Ramana Radhakrishnan

https://wiki.linaro.org/WorkingGroups/ToolChain/Meetings/2012-01-24 do folks have anything to add to this ? Ramana

14 years, 3 months

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[ACTIVITY] 16th - 20th January

by Andrew Stubbs

* Linaro Continued work on 64-bit multiplies. Cleaned up the patches a lot. Started testing work to check for correctness. Ironed out a few bugs. My turn for patch review week. * Other Spent most of the week in San Diego attending the formerly-known-as CodeSourcery annual meeting, now Mentor Graphics' ESD TOOLS team annual meeting.

14 years, 3 months

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[Activity] Week 3

by Ramana Radhakrishnan

Mostly bug hunting week with some time on Partial partial PRE. ==Progress=== * Fixed PR50313 - backport submitted to Linaro 4.6 branch for testing - Testing on FSF GCC 4.6 branch as well currently. * Followed up on PR48308 fix . No reply yet. * Triaged some of the test failures that we are currently seeing on FSF trunk. Reported a few bugs upstream which I think are now fixed. There are still too many vect failures for my liking ( nearly 30 odd unique) . Some of them are testisms and some of them probably need a bit of knowledge in the vectoriser. So could do with a hand here in case someone has some free time and needs things to look at . * Read up on Partial-partial PRE . Slow progress but getting a handle on the theory now. * Handed over the vld1 / vldm work to Uli - found another case where the compiler could do better while fixing up PR51819. Essentially in loop end code where we have cleanup code involving single elements from the vector, the backend prefers to move this to an integer register and store the value to memory which is just silly - See https://pastebin.linaro.org/385 * Fixed PR51819. Backported fix to Linaro 4.6 branch - The FSF 4.6 branch *doesn't* show this particular problem. === Plans === * Continue with partial-partial PRE . * Finish submitting PGO patch and ABI tests patch * Finish backporting PR50313 fix to the correct repositories. * Follow up on PR48308 and investigate this a bit further. * Start preparing for Connect 2012.q1 Absences. * Feb 6-10 : Linaro Connect Q1.12. * Feb 13- 18 : Holiday.

14 years, 3 months

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KVM tasks draft

by Michael Hope

I've taken the KVM Epic spec: https://wiki.linaro.org/WorkingGroups/ToolChain/Specs/KVMEpic and split this into a list of tasks: https://docs.google.com/spreadsheet/ccc?key=0Ap7fWLePADFVdHA3cTg1R3R2U2pzZ0… Mouse over the little orange triangle to see notes on what an item means.. There's a '1' in the column of each group that a task affects. I haven't put durations down. Some things are already under way outside Linaro. Comments? Feel free to edit directly. -- Michael

14 years, 3 months

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[ACTIVITY] Jan 16 - Jan 20

by Ulrich Weigand

== GDB == * Fixed some final minor issues with remote "info proc". Committed patch set to implement remote "info proc" (LP #804411) and remote core file generation (LP #804406) to mainline. Backported to Linaro GDB 7.3. == GCC == * Created patch to fix optimization failures on x86_64 exposed by Richard's subreg forward-propagation patch. * Set up Richard's loop-microbenchmarks suite and verified that the subreg forward-propagation patch causes no regression anywhere, and shows measurable improvements on some cases in GCC mainline. With the Linaro GCC 4.6 backport, results don't look as good; still investigating the cause. * Started looking into Ramana's vld1 patches. 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, 3 months

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[ACTIVITY] weekly status

by Ken Werner

Hi, * hacked the external toolchain recipe to use the latest version of the binary toolchain this kind of reverts the multiarch changes since oe doesn't support it yet * built the minimal, sato and qt images for armv7-a in three different flavors (-O2, -O3 -fno-tree-vectorize, -O3) using gcc-linaro-arm-linux-gnueabi-2012.01-20120112+bzr2318~linux see: http://people.linaro.org/~kwerner/oe-core/ * encountered that binutils 2.22 (the gas) fails to build with -O3 due to a warning about an unitialized variable I'm not convinced this is a real bug, I'll look at it as time permits workaround: --disable-werror * all nine of them (the images) are booting within qemu using vexpress_defconfig! There is one glitche with the mouse pointer: it doesn't match to the one of the SDL/VNC window as the guest pointer sometime accelerates faster that the host pointer I can hardly imagine this is due to miscompiled code * Extracted size informations about the generated ELF files: https://docs.google.com/spreadsheet/ccc?key=0AmsCLxCMnnISdDNQSEM2ZHIxd3dVNj… Regards, Ken

14 years, 3 months

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[ACTIVITY] report week 03

by Peter Maydell

RAG: Red: Amber: Green: A15 vexpress system model sufficient for KVM guest now done Current Milestones: || || Planned || Estimate || Actual || ||cp15-rework || 2012-01-06 || 2012-02-20 || || ||initial-a15-system-model || 2012-01-27 || 2012-01-27 || 2012-01-17 || ||qemu-kvm-getting-started || 2012-03-04?|| 2012-03-04?|| || (for blueprint definitions: https://wiki.linaro.org/PeterMaydell/QemuKVM) Historical Milestones: ||a15-usermode-support || 2011-11-10 || 2011-11-10 || 2011-10-27 || ||upstream-omap3-cleanup || 2011-11-10 || 2011-12-15 || 2011-12-12 || == cp15-rework == * some (slow) progress on this * made a list of the missing pieces in my current patchset and knocked off a few of the easier ones * fortunately this blueprint isn't really a critical blocker for KVM work any more == initial-a15-system-model == * vexpress-a15 now submitted upstream (in review) and in qemu-linaro * ...so this blueprint is complete * NB: doesn't boot in KVM but this is a trivial kernel-side issue == other == * this category seems to take most of my time :-( * patch review: still Calxeda, Samsung * patch review: softfloat type fixes * identified some bugs in softfloat and arm code that surface if a softfloat type is 64 bits (at the moment it is 32 bits in practice but it is being proposed to widen it) * wrote up the issues to be solved so somebody else can do qemu-linaro releases * got qemu-jeos building for ARM [an attempt at making qemu testing easier by having an automated "build toolchain/kernel/initrd" setup] * retested QEMU fused-multiply-accumulate against an A15 FPGA

14 years, 3 months

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Narrowing down regressions on trunk

by Michael Hope

Hi Åsa. The GCC 4.7 release is coming up and the ARM testsuite shows a lot of regressions: http://ex.seabright.co.nz/helpers/testlog/gcc-4.7~svn183205/logs/armv7l-nat… We've been running three builds a week: http://ex.seabright.co.nz/helpers/buildlog/gcc-4.7~svn and can use the result to track down the range of commits where a fault was introduced or exposed. Could you please look through the results and narrow down where each failure appeared? I've uploaded all of the results to: http://people.linaro.org/~michaelh/incoming/trunks.tar.xz One way is to look at the testsuite-diff.txt in each build as it should show the change in test results between one build and the next but might be incomplete. Another way is to pull the failures out of gcc-testsuite.txt and do a diff against the previous version. The output should be a revision range for each of the current failures. Script it up. Don't do it by hand. I'm not that mean. Ta, -- Michael

14 years, 3 months

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[ACTIVITY] w03

by Asa Sandahl

* Started with bug triaging, looked at four different bugs (including Michael's example). Challenging, but interesting. Got great help from Ramana and Andrew. * -o2/-o3 benchmark runs with gcc-linaro-4.6-2012.01 done. coremark, eembc, denbench, pybench and spec2000. Uploaded all results ~linaro-toolchain-wg/linaro-toolchain-benchmarks/private-runs. Posted results for -o2-neon vs -o3-neon-novect. Working on charts including also -o3-neon and -os. Got a bit too occupied with making the matplotlib charts look pretty. I will try to get all results posted next week. * Started the add-sunspider-as-a-benchmark blueprint in the background. Built the v8-engine stand alone on x86 (just with default options). It has a sample shell included. You can feed it with .js-files. Tried the v8 benchmark, which also comes with the engine. Regards Åsa

14 years, 3 months

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Absence next week (Jan 21-29, 2012)

by Zhenqiang Chen

Hi all, I will be out for vacation during Chinese Spring Festival (Jan 21-29, 2012). For emergency, call me at +86-13817948562. Best regards! -Zhenqiang

14 years, 3 months

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[ACTIVITY] Week 03

by Zhenqiang Chen

Summary: * Enhance crosstool-ng build process. Details: 1. Linaro crosstool-ng patches: * Update and commit the patch to strip debug sections. * rm *-cc.exe symblink for win32. * enable gdb for win32 (lp:918479) * Update README to add flip dependence for build. 2. Verify the following bugs and change status to "Fix Committed" * lp:906729 baremetal libc headers and libraries are in inconsistent places * lP:906077 binaries: baremetal include files are in the wrong place * lP:894527 binaries: remove all symlinks from the Windows build * lp:889984 binaries: should step across helper functions * lp:906662 binaries: pgversion can get out of sync with product 3. Analyzed bugs * lp:915137 Link failure due to absolute paths: Need more information to reproduce. * lp:p18478 wind32 doesn't have pkg-config: Try to build pkg-config for mingw32 host. But failed since it required preinstalled glib2. And configure error if cross building the glib. * lp:894528 binaries: can't run if the patch contains whitespace. Can not reproduce it on cygwin, but still have issue in DOS cmdline 4. Verify the prerelease binary package on windows. And find and workaround a gdb document name issue since filename on windows is case insensitive (lp:909195). 5. Raise the gcc trunk build fail issue to crosstool-ng mail-list. But not confirm "-EL" is the final root cause. Need more investigation. Planned Absence: * Jan 21-29, 2012 Chinese Spring Festival Best regards! -Zhenqiang

14 years, 3 months

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cross compiling eglibc with Linaro toolchain

by shyamalan sivan

Hello experts, I don't know whether this is the place to ask this question.Please forgive if i am wrong. I am trying to cross-compile Eglibc,(which i thought is similar to the glibc) library with Linaro tool chain.My aim is to cross-compile the library and add it with the tool-chain( i assumed that Linaro doesn't ahve the eglibc libraries by itself). . I referred to the link http://www.eglibc.org/archives/patches/msg00078.html (README.cross-compiling of the libc) and did the following. I thought that binutils is not required as the tool chain itself contains the loader, assembler etc.(which are the most important in the binutils).So i skipped that step.(i am not sure whether this is right.please correct me if i am wrong). I did the below steps as in the above link. 1) Copied the Linux Kernel Headers 2) EGLIBC Headers and Preliminary Objects 2.1) configuring the Eglibc headers by the below steps. appan@oplt$ ~/cross_compile_eglibc/ppc/obj/eglibc-headers$ BUILD_CC=gcc CC=/home/appan/cross_compile_eglibc/ppc/tools/bin/arm-linux-gnueabi-gcc CXX=/home/appan/cross_compile_eglibc/ppc/tools/bin/arm-linux-gnueabi-cpp AR=/home/appan/cross_compile_eglibc/ppc/tools/bin/arm-linux-gnueabi-ar RANLIB=/home/appaan/cross_compile_eglibc/ppc/tools/bin/arm-linux-gnueabi-ranlib /home/appan/cross_compile_eglibc/src/libc/configure --prefix=/home/appan/CC_EGLIBC --with-headers=/home/appan/cross_compile_eglibc/ppc/sysroot/usr/include/ --build=i686-pc-linux-gnu --host=arm-unknown-linux-gnu --enable-add-ons --with-tls --with-__thread 2.2) compilation make install-headers install_root=$sysroot install-bootstrap-headers=yes But following is the error i get. > /home/appan/cross_compile_eglibc/ppc/obj/eglibc-headers/Versions.v.iT<http://versions.v.it/> In file included from <stdin>:1:0: ports/sysdeps/arm/nptl/tls.h:48:3: error: #*error "TLS support is required.* " make[1]: *** No rule to make target `headers_install'. Stop. make[1]: Leaving directory `/home/appan/cross_compile_eglibc/src/libc' make: *** [headers_install] Error 2 I tried googling, but i did not get the solution for this.. please provide me with some suggestions and that will be of great help to me... thanks and regards appan

14 years, 3 months

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Automatically save preprocessed source on ICE

by Asa Sandahl

Hi there! I need some help with how to handle this bug: https://bugs.launchpad.net/gcc-linaro/+bug/873977 It looks like an improvement suggestion more than a bug. Regards Åsa *Automatically save preprocessed source on ICE*In order to help with bug reporting, gcc could save the preprocessed source of the unit that caused the ICE, so one can just pick it up and attach it to bug reports instead of trying to reproduce it manually.

14 years, 3 months

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KVM and OpenStack integration

by Michael Hope

Hi Peter. I've had a poke about in qemu-linaro, OpenStack, and libvirt to get a feel for the KVM integration work. My scratch notes are here: https://wiki.linaro.org/MichaelHope/Sandbox/QEMUA15GuestNotes I'm feeling happy about the integration. The parts that I've seen have good separation, are architecture neutral, and have some ARM support. We can prototype using virtual x86 based masters and QEMU TCG based compute instances. I've seen a few bugs and assumptions: OpenStack defaults to virtio, boot=hda, and fixed kernel args; and libvirt can't parse the the qemu-linaro version string. There will be more. I'll feed this into the KVM 1.0 task list and share it. -- Michael

14 years, 3 months

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New conference call number

by Michael Hope

Hi there. Starting next week we'll switch to the Zip conference line. See: https://wiki.linaro.org/Resources/ZipConferenceLine under 1-719-457-1414 for a list of numbers. A selected few are: UK 0 808 101 1146 Germany 0 800 181 9019 Sweden 02 079 7556 Brazil, Sao Paulo Local +55 11 5582 6534 Australia 1 800 105 680 China +400 148 5400 NZ 0800 451 015 The code is 763 804 0680. I've updated the meeting calendar and will update the wiki page once Monday comes around. The moderator code is on the toolchain internal page. Amber, could you update the public event please? Ramana, could you update the performance call for two weeks time? Maybe move it to linaro-events so I can edit it. -- Michael

14 years, 3 months

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Cross-compiling Eglibc library with Linaro toolchain

by Amber Graner

Hi all, In my search for Linaro related news this morning, I saw a tweet from Linuxquestions.org referencing a cross-compiling questions. Here is the link to the post on Linuxquestions.org - http://www.linuxquestions.org/questions/linux-embedded-78/cross-compiling-e… Thanks, I'll answer from the Linaro Tweeter account that it's been past to the Linaro Developers. Cheers, Amber -- Amber Graner User Experience and Community Specialist Linaro.org <http://www.linaro.org/>* **│ *Open source software for ARM SoCs* *** Follow *Linaro: *Facebook <http://www.facebook.com/pages/Linaro> | Twitter<http://twitter.com/#%21/linaroorg> | Blog <http://www.linaro.org/linaro-blog/> *+1.828.582.9469* cell *+1.828.395.1049* office irc: akgraner amber.graner(a)linaro.org (email and Google chat)

14 years, 3 months

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Triage of #914703

by Asa Sandahl

Hi Michael, So, I gave my best shot at: https://bugs.launchpad.net/gcc-linaro/+bug/914703 Kind of similar to the one in your walk-through, but I couldn't actually reproduce on the version reported. Could you please check if this looks OK? Regards Åsa

14 years, 3 months

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Bug triage run-through

by Michael Hope

Hi Åsa. I've triaged a bug and written down my notes on the way. See: https://wiki.linaro.org/MichaelHope/Sandbox/TriageRunThrough This one turned out to be easy but at least you have the basics. Could you triage the bug for real and see what I've missed? I'm unsatisfied with the result on that bug. The fault is in the Ubuntu Natty compiler which we've long since fixed in Linaro GCC. It would be nice if we could point the bug reporter to an updated GCC. Ask Marcin and Matthias what they think. -- Michael

14 years, 3 months

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[ACTIVITY] Week 02

by Zhenqiang Chen

Summary: * Enhance crosstool-ng build process. Details: 1. crosstool-ng patches: * Reproduce the build process by following the README and enhance the document. * Update .config to strip all toolchain executables * Replace harded-coded VERSION by reading config file. * Remove host libiberty.a * Patch on how to strip debug sections is in discussion. 2. Update the crosstool-ng based embedded toolchain build scripts according to the review comments. And replace most of hard-coded config by reading them from .config. 3. Unexpected build fail for gcc 4.7/trunk from crosstool-ng due to unsupported ENDIAN_LDFLAG "-EL", which is used in "LDFLAGS_FOR_TARGET" to build libstdc++. (LDFLAGS_FOR_TARGET seams not used in gcc 4.6). Need more investigation. Plan: * Fix the binary build related bugs. * Ramp-up on gcc. Planned Absence: * Jan 21-29, 2012 Chinese Spring Festival Best regards! -Zhenqiang

14 years, 3 months

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uImage built with pre-built linaro toolchain failed to start

by Lv Terry-R65388

Hi, I use pre-built version of linaro toolchain (got from http://people.linaro.org/~michaelh/incoming/binaries/) to build a uImage. The build succeeded, but the uImage couldn't start. The console hangs at: Using FEC0 device TFTP from server 10.193.100.158; our IP address is 10.193.102.233 Filename 'uImage_linaro'. Load address: 0x70800000 Loading: ################################################################# ################################################################# ################################################################# ####################### done Bytes transferred = 3193292 (30b9cc hex) ## Booting kernel from Legacy Image at 70800000 ... Image Name: Linux-2.6.38-01026-gc9c8ead Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 3193228 Bytes = 3 MB Load Address: 10008000 Entry Point: 10008000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... Uncompressing Linux... done, booting the kernel. Does anyone meet this before? How can I fix it? Thanks~~ Yours Terry

14 years, 3 months

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[ACTIVITY] w02

by Asa Sandahl

* Started with some day-to-day activities in the team. Looking after the proposals and the cbuild scheduler. Will start Created problem log for scheduler problems, there is a link to it from the jobs page. https://wiki.linaro.org/WorkingGroups/ToolChain/SchedulerProblems * Worked on producing graphs for benchmark results using matplotlib. Michael: Would it be ok to put my script in linaro-toolchain-benchmarks/scripts? * Kicked off some benchmarks with gcc-linaro-4.6-2012.01. To start with coremark, eembc, denbench, pybench and spec2000. We will see what's there after the weekend. Variants: os-neon, o2-neon, o3-neon-novect and o3-neon. /Regards Åsa

14 years, 3 months

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[ACTIVITY] Jan 09 - Jan 13

by Ulrich Weigand

== GDB == * Implemented, tested, and posted for discussion yet another version of remote support for "info proc" and core file generation, this time via accessing /proc files via generic file I/O primitives. == GCC == * Tested and merged Revital's fix for LP #879725. * Tested Richard's patch to help code generation for NEON strided loads by enabled forward-propagation of subreg expressions. This caused optimization failures on x86_64; investigated the root cause and engaged in discussion on mailing list on potential fixes. * Helped Ramana look into PR 43808 and PR 50313. 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, 4 months

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[ACTIVITY] 9th - 13th January

by Andrew Stubbs

Continued work on 64-bit shifts. I've tidied up most of the nastiness I had in my first attempt at this work, unified the logic into fewer places, and fixed the one logic error that I knew about. I had a mysterious reload bug that just wouldn't go away, but having stared at it for some time I've decided that what I was doing wasn't the best option in any case, and the new way seems to work. I still have the problem that register-allocation prefers to allocate the values in core-registers, even when it would seem to me to work better in NEON. This maybe because the shift amount must be negated in some cases, and there isn't a neon instruction for that. Continued trying to use LAVA to do builds. Unfortunately this seems to have hit against a lava-test bug. Filed as lp:915915.

14 years, 4 months

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[ACTIVITY] weekly status

by Ken Werner

Hi, * built linaro binary toolchain using Michaels crosstool-ng environment: * disabled multiarch and pkg-config * uses eglibc 2.13 (due to RPC headers) * using Linux kernel version 2.6.32.48 (longterm) * debugged why /sbin/init fails when using the linaro binary toolchain: * the loader and libc of the binary toolchain is build for armv7 * the binaries (init, busybox, ...) are linked against this glibc and using the libdl-2.13.so of the binary toolchain * it causes the boot to fails due to illegal insn caused by the dl * built the minimal image for armv7-a: * use the vexpress_defconfig of linaro 3.1 tree linux-linaro-3.1.git (instead of the OE vesatilebp kernel) * boots fine using the vexpress-a9 QEMU system model * sato image (X and gtk+ apps) for armv7-a: * Tremor (vorbis): inline assembly only supports ARM mode quick workaround: undefine _ARM_ASSEM_ to fall back to C * pulseaudio/libatomics-ops: inline asm that only supports ARM mode quick workaround: use the latest version from upstream * gtk+_2.24.8 fails due to the libstdc++ libtool archive easy fix: delete the *la files (just like most of the distributors) the *la files prevent the the binary toolchain from being "relocatable" * sato image boots and shows the gui but the X resolution is higher and the X cursor behaves strange (probably not a miscompile but a difference of the linaro kernel) Regards, Ken

14 years, 4 months

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[ACTIVITY] report week 02

by Peter Maydell

RAG: Red: Amber: Green: good progress on A15 vexpress system model Current Milestones: || || Planned || Estimate || Actual || ||cp15-rework || 2012-01-06 || 2012-02-20 || || ||initial-a15-system-model || 2012-01-27 || 2012-01-27 || || ||qemu-kvm-getting-started || 2012-03-04?|| 2012-03-04?|| || (for blueprint definitions: https://wiki.linaro.org/PeterMaydell/QemuKVM) Historical Milestones: ||a15-usermode-support || 2011-11-10 || 2011-11-10 || 2011-10-27 || ||upstream-omap3-cleanup || 2011-11-10 || 2011-12-15 || 2011-12-12 || == cp15-rework == * estimate shifted back since it turns out we can do something useful in initial-a15-system-model without this as a prerequisite, so that's a better order to do things in == initial-a15-system-model == * I now have a working vexpress-a15 board model, and enough of the a15 private peripheral region and CPU definition that we can boot a kernel compiled for A15-without-LPAE * patchseries mostly looks ok to upstream but there are some loose ends to fix up involving SMP secondary boot CPU protocol and making sure the right one of the two graphics controllers gets to display things; also it depends on some patches in the Calxeda/Samsung patchseries == other == * patch review: Calxeda now basically ready to commit, another round with Samsung * made qemu-linaro 2012.01 release * usual round of meetings etc

14 years, 4 months

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[ACTIVITY] Week 2

by Ramana Radhakrishnan

==Progress=== * Backported one part of the partial-partial PRE patch . Still looking into it. * Investigate PR48308 - a bug where combine was generating incorrect transformations. * Reopened PR50313 - a bug which I originally thought was a dup of PR48308. * Looked at upstream bugzilla for sometime and triaged a few bugs. * Linaro patch review. === Plans === * Continue looking at partial-partial PRE and try and understand it further. * Look at PR50313 further * Upstream patch review. * Finish submitting PGO patch and ABI tests patch * Look at Andrew's patches for neon shifts - Absences. * Feb 6-10 : Linaro Connect Q1.12. * Feb 13- 18 : Holiday.

14 years, 4 months

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[ACTIVITY] Week 1

by Ramana Radhakrishnan

==Progress=== * Short week - 4 days only after the bank holiday monday. * Investigated PR48308 for a bit. * Caught up with emails after vacation. * Looked at fate an automatic tester for libav to validate my fixed to fp conversions . Need to finish that off. * 1 more bug with output_move_double ICE looked at briefly. Appears to be memory corruption but valgrinding didn't find the issue. Prioritizing PR48308 above this. === Plans === * Look at PR48308 a bit more seriously. * Finish my long standing patches. Absences. * Feb 6-10 : Linaro Connect Q1.12. * Feb 13- 18 : Holiday.

14 years, 4 months

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Microkernel based virtualisation

by Michael Hope

Amber noticed this on her Twitter feed: a L4 microkernel based para-virtualisation that runs on the A9: http://l4dev.org/ They're currently running the 11.12 LEB on a Versatile Express. The project overview: http://l4dev.org/codezero_overview talks about their 'hyperswitch' method to reduce the para-virtualisation overhead and reduce the number of changes to the Linux kernel. -- Michael

14 years, 4 months

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Release done, branch is open

by Michael Hope

The GCC release tested up just fine. The branch is now open for commits. The next release is Thursday the 9th of February. Note that this is in the middle of Connect. -- Michael

14 years, 4 months

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Linaro GCC 4.6 and 4.5 2012.01 released

by Michael Hope

The Linaro Toolchain Working Group is pleased to announce the 2012.01 release of Linaro GCC 4.6 and Linaro GCC 4.5. No changes were made in Linaro GDB this month and, as such, no release has been made. Linaro GCC 4.6 2012.01 is the eleventh release in the 4.6 series. Based off the latest GCC 4.6.2+svn182894 release, it contains a few bug fixes from over the Christmas break. Interesting changes include: * Updates to 4.6.2+svn182894 Fixes: * PR51301 ICE in vectorised widening multiplies * LP: #897583 Code generation bug with -O2 (-foptimize-sibling-calls) * LP: #736661 armel FTBFS due to compiler ICE Linaro GCC 4.5 2012.01 is the seventeenth release in the 4.5 series. Interesting changes include: * Updates to 4.5.3+svn182893 Fixes: * LP: #736661 armel FTBFS due to compiler ICE The source tarballs are available from: https://launchpad.net/gcc-linaro/+milestone/4.6-2012.01 https://launchpad.net/gcc-linaro/+milestone/4.5-2012.01 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 page: https://launchpad.net/gcc-linaro/4.6/4.6-2012.01 https://launchpad.net/gcc-linaro/4.5/4.5-2012.01 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 -- Michael

14 years, 4 months

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Linaro QEMU 2012.01 released

by Peter Maydell

The Linaro Toolchain Working Group is pleased to announce the release of Linaro QEMU 2012.01. Linaro QEMU 2012.01 is the latest monthly release of qemu-linaro. Based off upstream (trunk) QEMU, it includes a number of ARM-focused bug fixes and enhancements. New in this month's release: - Several bug fixes which reinstate support for running on ARM hosts - Support for previously missing *xattr syscalls in usermode emulation - A (dummy) model of the L2x0/PL310 L2 cache contrnoller (thanks to Rob Herring and Mark Langsdorf of Calxeda) Known issues: - Graphics do not work for OMAP3 based models (beagle, overo) with 11.10 Linaro images. The source tarball is available at: https://launchpad.net/qemu-linaro/+milestone/2012.01 More information on Linaro QEMU is available at: https://launchpad.net/qemu-linaro

14 years, 4 months

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[PATCH 1/1] hw: Add IGEPv2 board support

by Javier Martinez Canillas

Add ISEE IGEPv2 board definition (an OMAP3730 based board). Signed-off-by: Javier Martinez Canillas <javier(a)dowhile0.org> --- Makefile.target | 2 +- hw/igep.c | 123 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 124 insertions(+), 1 deletions(-) create mode 100644 hw/igep.c diff --git a/Makefile.target b/Makefile.target index 409748f..2923dd7 100644 --- a/Makefile.target +++ b/Makefile.target @@ -349,7 +349,7 @@ obj-arm-y += omap1.o omap_lcdc.o omap_dma.o omap_clk.o omap_mmc.o omap_i2c.o \ obj-arm-y += omap2.o omap_dss.o soc_dma.o omap_gptimer.o omap_synctimer.o \ omap_gpmc.o omap_sdrc.o omap_spi.o omap_tap.o omap_l4.o obj-arm-y += omap3.o omap_usb.o omap3_boot.o omap3_mmc.o dsi.o -obj-arm-y += twl4030.o beagle.o overo.o +obj-arm-y += twl4030.o beagle.o overo.o igep.o obj-arm-y += omap_sx1.o palm.o tsc210x.o obj-arm-y += nseries.o blizzard.o onenand.o vga.o cbus.o tusb6010.o usb-musb.o obj-arm-y += mst_fpga.o mainstone.o diff --git a/hw/igep.c b/hw/igep.c new file mode 100644 index 0000000..5254ddf --- /dev/null +++ b/hw/igep.c @@ -0,0 +1,123 @@ +/* + * ISEE IGEPv2 board emulation. + * + * Copyright (c) 2012 ISEE 2007, SL + * Written by Javier Martinez Canillas (based on Gumstix Overo emulation code) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "qemu-common.h" +#include "sysemu.h" +#include "omap.h" +#include "arm-misc.h" +#include "boards.h" +#include "i2c.h" +#include "net.h" +#include "devices.h" +#include "flash.h" +#include "sysbus.h" +#include "blockdev.h" +#include "exec-memory.h" + +#define IGEP_NAND_CS 0 +#define IGEP_NET_CS 5 + +struct igep_s { + struct omap_mpu_state_s *cpu; + + DeviceState *nand; + void *twl4030; + DeviceState *eth; + DeviceState *ddc; +}; + +static void igep_init(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, + const char *kernel_cmdline, + const char *initrd_filename, + const char *cpu_model) +{ + MemoryRegion *sysmem = get_system_memory(); + struct igep_s *s = (struct igep_s *) g_malloc0(sizeof(*s)); + DriveInfo *dmtd = drive_get(IF_MTD, 0, 0); + DriveInfo *dsd = drive_get(IF_SD, 0, 0); + + if (ram_size > 1024 * 1024 * 1024) { + fprintf(stderr, "igep: maximum permitted RAM size 1024MB\n"); + exit(1); + } + + if (!dmtd && !dsd) { + hw_error("%s: SD or NAND image required", __func__); + } + s->cpu = omap3_mpu_init(sysmem, omap3630, ram_size, + NULL, NULL, serial_hds[0], NULL); + + s->nand = qdev_create(NULL, "onenand"); + qdev_prop_set_uint16(s->nand, "manufacturer_id", NAND_MFR_STMICRO); + qdev_prop_set_uint16(s->nand, "device_id", 0x40); + qdev_prop_set_uint16(s->nand, "version_id", 0x121); + qdev_prop_set_int32(s->nand, "shift", 1); + if (dmtd && dmtd->bdrv) { + qdev_prop_set_drive_nofail(s->nand, "drive", dmtd->bdrv); + } + qdev_init_nofail(s->nand); + omap_gpmc_attach(s->cpu->gpmc, IGEP_NAND_CS, + sysbus_mmio_get_region(sysbus_from_qdev(s->nand), 0)); + + if (dsd) { + omap3_mmc_attach(s->cpu->omap3_mmc[0], dsd->bdrv, 0, 0); + } + + /* FAB revs >= 2516: 4030 interrupt is GPIO 0 (earlier ones were 112) */ + s->twl4030 = twl4030_init(omap_i2c_bus(s->cpu->i2c, 0), + qdev_get_gpio_in(s->cpu->gpio, 0), + NULL, NULL); + + /* Wire up an I2C slave which returns EDID monitor information; + * newer Linux kernels won't turn on the display unless they + * detect a monitor over DDC. + */ + s->ddc = i2c_create_slave(omap_i2c_bus(s->cpu->i2c, 2), "i2c-ddc", 0x50); + + omap_lcd_panel_attach(s->cpu->dss); + + /* Strictly this should be a LAN9221 */ + if (nd_table[0].vlan) { + /* The ethernet chip hangs off the GPMC */ + NICInfo *nd = &nd_table[0]; + qemu_check_nic_model(nd, "lan9118"); + s->eth = qdev_create(NULL, "lan9118"); + qdev_set_nic_properties(s->eth, nd); + qdev_init_nofail(s->eth); + omap_gpmc_attach(s->cpu->gpmc, IGEP_NET_CS, + sysbus_mmio_get_region(sysbus_from_qdev(s->eth), 0)); + sysbus_connect_irq(sysbus_from_qdev(s->eth), 0, + qdev_get_gpio_in(s->cpu->gpio, 176)); + } +} + +QEMUMachine igep_machine = { + .name = "igep", + .desc = "ISEE IGEPv2 board (OMAP3730)", + .init = igep_init, +}; + +static void igep_machine_init(void) +{ + qemu_register_machine(&igep_machine); +} + +machine_init(igep_machine_init); -- 1.7.4.1

14 years, 4 months

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First proposals

by Michael Hope

Hi Åsa. Well, the first proposals have arrived. I've cc'ed this to linaro-toolchain so we have a record. First, visit: http://ex.seabright.co.nz/helpers/proposals and see there are new merge requests from Ulrich with new results. Next, login: http://ex.seabright.co.nz/helpers/login Your login is your Launchpad OpenID login "https://launchpad.net/~asa-sandahl" After logging in, go back to the proposals page. See that the fwprop-subreg merge request has a i686 and x86_64 result. The i686 one is fine so click 'Record' and follow your nose. The x86_64 is interesting - the fault might be real. Click 'Record'. Note the subject line has 'regressed' in it. Ulrich will have to investigate. The lp-879725 results look fine so record both of those. Scanning down the page shows that everything else is recorded so you're done! The tool is a bit slow so don't be surprised if an operation takes ~10 s. The tool is backed by a cache so you won't see the results for ~2 hours. -- Michael

14 years, 4 months

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Next week

by Andrew Stubbs

Hi Michael, I can't remember if I told you before, but I shall be away at the CodeSourcery (Ok, Mentor Graphics's ESD TOOLS) annual meeting most of next week. I ought to be back at work on Friday. In the meantime I shall be reading email, but not spending much time on Linaro work. I can probably still get the GCC release process done, but if you'd prefer Ramana did it this month then that's fine with me. Andrew

14 years, 4 months

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Spinning the build

by Michael Hope

Hi Andrew. The current tip looks good. Could you please run the release process, spin the build, and fire it into the auto builders? Ta, -- Michael

14 years, 4 months

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Backporting A15 changes

by Michael Hope

Hi there. Linaro is about what's next and, as part of this, we should backport any reasonable Cortex-A15 changes to our 4.6 branch. Richard and Matthew, could you let us know directly when new patches from ARM land upstream? We're already doing this but I thought I'd say it out loud. -- Michael

14 years, 4 months

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Building Linaro GCC from source

by Javier Martinez Canillas

Hello, I'm trying to build the Linaro GCC from source on an x86_64 Fedora 16 box. I'm using as a guide a wiki entry I found in linaro.org site [1] that explains how to build a native version of the compiler. But instead of a native version I want to be able to cross-compile ARM binaries for my target machine. This is what I tried: [javier@munra src]$ wget -c http://launchpadlibrarian.net/86993387/gcc-linaro-4.6-2011.12.tar.bz2 [javier@munra src]$ tar xaf gcc-linaro-4.6-2011.12.tar.bz2 [javier@munra src]$ mkdir build && cd build [javier@munra build]$ ../gcc-linaro-4.6-2011.12/configure --target=arm-linux --disable-bootstrap --enable-languages=c --prefix=/home/javier/tools [javier@munra build]$ make -j4 && make install But got this error: make[2]: Leaving directory `/home/javier/src/build/gcc' Checking multilib configuration for libgcc... mkdir -p -- arm-linux/libgcc Configuring in arm-linux/libgcc configure: creating cache ./config.cache checking for --enable-version-specific-runtime-libs... no checking for a BSD-compatible install... /usr/bin/install -c checking for gawk... gawk checking build system type... x86_64-unknown-linux-gnu checking host system type... arm-unknown-linux-gnu checking for arm-linux-ar... arm-linux-ar checking for arm-linux-lipo... arm-linux-lipo checking for arm-linux-nm... /home/javier/src/build/./gcc/nm checking for arm-linux-ranlib... arm-linux-ranlib checking for arm-linux-strip... arm-linux-strip checking whether ln -s works... yes checking for arm-linux-gcc... /home/javier/src/build/./gcc/xgcc -B/home/javier/src/build/./gcc/ -B/home/javier/tools/arm-linux/bin/ -B/home/javier/tools/arm-linux/lib/ -isystem /home/javier/tools/arm-linux/include -isystem /home/javier/tools/arm-linux/sys-include checking for suffix of object files... configure: error: in `/home/javier/src/build/arm-linux/libgcc': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details. make[1]: *** [configure-target-libgcc] Error 1 make[1]: Leaving directory `/home/javier/src/build' make: *** [all] Error 2 Before trying to compile I've installed the libgmp, libmpfr and arm cross tool-chain [2] Fedora packages so I guess all gcc dependencies are met (binutils, glibc, etc). Could someone be so kind to point me out what am I doing wrong? I'm sending as an attachment the config.log generated file. Please let me know if you need any more information about my setup and environment. [1]: https://wiki.linaro.org/WorkingGroups/ToolChain/Using/GCCNative [2]: http://fedoraproject.org/wiki/Architectures/ARM/CrossToolchain Thanks a lot and best regards, Javier

14 years, 4 months

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A high level try at KVM for ARM

by Michael Hope

I've taken a stab at the medium term requirements for KVM on ARM: https://wiki.linaro.org/WorkingGroups/ToolChain/Specs/KVMEpic I haven't looked outside Linaro so apologies if this overlaps with other people's plans. Peter, this is high level and hopefully matches what's in your head. I want to use this to do a project plan, see if it can be done in 6-9 calendar months, and see if we need more people. Are there any implementation details that we should call out, similar to calling out virtio and UEFI? Rusty, this should tell you more about where we're going. Mounir, you, Peter, and I should turn this into a basic project plan. -- Michael

14 years, 4 months

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agenda for tomorrow's performance call.

by Ramana Radhakrishnan

Hi, Does anyone have anything they'd like to bring up in tomorrow's performance call. ? I don't have any topics other than following on action items from last time's call - which was comparing movw/ movt with constant pools . https://wiki.linaro.org/WorkingGroups/ToolChain/Meetings/2012-01-10 Please add to it as you deem fit. cheers Ramana

14 years, 4 months

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[ACTIVITY] 2nd - 6th January

by Andrew Stubbs

* Linaro Continued work on getting GCC to build on LAVA. I've ironed out a few more bugs from my test scripts, but it's slow going because a test runs takes a long time to run, and there are very few useful error messages when something goes wrong. Wrote, posted, and committed a patch to fix the "120" testsuite bug I encountered last month. Basically the GCC testsuite's "headmerge-1" testcase would have failed from now until September because a sloppy regex happening to match "120" in the toolchain version string's snapshot date. I've also backported it to upstream 4.6 and posted a merge request for Linaro 4.6. Continued running benchmarks for the generic tuning project. Continued looking at optimizing 64-bit shifts. No real progress this week though. * Other Monday: Public holiday. Tuesday: Vacation. Caught up on a mountain of email.

14 years, 4 months

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[ACTIVITY] Jan 04 - Jan 06

by Zhenqiang Chen

Summary: * Read armV7-A/R reference manual and analyze bugs. Details: * Read armV7-A/R reference manual and share the instruction set part with local team. * Analyze bugs: LP: #889985 "binaries: can't step out of helper functions" and LP: #889984 "binaries: should step across helper functions" Plan: * Ramp-up on gcc. Planed leave: * Jan 21 - 29: Chinese new year holiday. Best regards! -Zhenqiang

14 years, 4 months

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Jobs/tasks inside the group

by Michael Hope

Hi there. I want each administrative task inside our group to have an owner and a fill-in. I've started a list at: https://wiki.linaro.org/WorkingGroups/ToolChain/Jobs I took the chance to hand off some of my jobs as well so you might see your name somewhere new (but hopefully not surprising). I'll discuss this at tonight's meeting and in the 1-on-1s. Reply away if you'd like more detail or have a task to add. -- Michael

14 years, 4 months

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[ACTIVITY] report week 01

by Peter Maydell

[short week, three days] RAG: Red: Amber: Green: Current Milestones: || || Planned || Estimate || Actual || ||cp15-rework || 2012-01-06 || 2012-01-17 || || ||initial-a15-system-model || 2012-01-27 || 2012-01-27 || || ||qemu-kvm-getting-started || 2012-03-04?|| 2012-03-04?|| || (for blueprint definitions: https://wiki.linaro.org/PeterMaydell/QemuKVM) Historical Milestones: ||a15-usermode-support || 2011-11-10 || 2011-11-10 || 2011-10-27 || ||upstream-omap3-cleanup || 2011-11-10 || 2011-12-15 || 2011-12-12 || == other == * catchup on email, etc * patch review: patches for Calxeda's Highbank SoC model * put together pull requests for target-arm and arm-devs patchqueues * rebased qemu-linaro, added patches for things we want to fix in 2011.01, rolled a tarball, tested it and sent to Michael H for testing

14 years, 4 months

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