linaro-toolchain

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5677 discussions

[ACTIVITY] 9 - 13 September 2013

by Omair Javaid

== Progress == * GDB Record and Replay (TCWG-197) Debugged code for an exception coming up in gdb code after applying Thumb32 patch. * Travel to UK on Wednesday night stopped in UAE for Thursday and Friday. * Holiday on Thursday and Friday. == Plan == * Working from Linaro Cambridge from Monday till Friday * GDB Record and Replay (TCWG-197) Fix issues Submit patch upstream. * Meetings with team mates in Cambridge and visit to ARM.

12 years, 5 months

[ACTIVITY] Week 37

by Yvan Roux

== Progress == * 4.8 2013.09 backports: - Finished ongoing reviews. * LRA: - Fixed and refactored rtl analyser patch, waiting fro upstream green light - Reduced AArch64 testcase, and find the root cause of the issue: Only 64 bits of callee saved registered v8-v15 are preserved, larger values has to be handle by the caller, which not the case with LRA. Working on the issue with LRA maintainer. * LCU'13 - Hotel and flight booked == Next == * Continue on LRA

12 years, 5 months

[ACTIVITY] Week 37

by Zhenqiang Chen

== Issues == * None == Progress == * Prepare Linaro toolchain binary 2013.09 release - Create linaro-prebuilt-sysroot-2013.09. - Update local patches and all Linaro samples to use eglibc-linaro-2.18-2013.09. * Update Conditional compare (CCMP) according to community comments. Current method is: - In fold-const, if HAVE_conditional_compare, set LOGICAL_OP_NON_SHORT_CIRCUIT to true. - Identify CCMP during expanding. A CCMP candidate is a BIT_AND_EXPR or BIT_IOR_EXPR, whose operators are compares. - Add a new op in optab to expand the CCMP to RTL, e.g. and_scc_scc/ior_scc_scc in ARM. - Testing is ongoing. == Plan == * Send out the updated conditional compare patches for review. == Panned leaves == * Sept. 19-21: Mid-Autumn Festival * Oct. 1-7: National Day of China holiday

12 years, 5 months

[Activity] Sept 9-15

by Rob Savoye

== Progress == * Set up a GCC git mirror on git.linaro.org. now at ssh://LOGIN@git.linaro.org/srv/git.linaro.org/git/toolchain/gcc.git. The two Linaro branches most people are interested in are now 'linaro-4.7-branch' (updated every 30 minutes from launchpad), and 'linaro-4.8-branch' updated every 10 minutes from subversion. * Tweaked Cbuildv2 & Jenkins to work with GIT repositories and branches as well as source tarballs. * Jenkins now "bootstraps" a cross compiler by building the native GCC, and then using that to compile the cross GCC. * Got aarch64-none-elf building with newlib via Cbuildv2. * Source and binary tarball release support in Cbuildv2 now works. I've had to change the naming convention to handle daily automated builds, and added the commit ID of HEAD for git based builds. * Almost got Canadian crosses building via Cbuildv2. * Continued work on Jenkins/Cbuildv2 integration. * Cbuildv2 now works on Fedora as well as Ubuntu. * Survived major 100+ year flood. Got to watch a dam overflow, kindof cool, all the roads in and out of this area have been closed for days, most of the bridges are gone. Been busy all weekend evacuating people, car accidents, normal disaster area stuff. I worked Katrina relief, never thought I'd see a flood in the mountains. == Plan == * Continuing with Jenkins/Cbuildv2/Git integration. * Get testing results from Jenkins builds imported via Junit conversion. * Compare automated tarballs with the current release tarballs. * Get Jenkins to upload binary & source tarballs to snapshots.linaro.org. * Add support for using specific commit IDs with Git and Cbuildv2. * Finish getting Canadian Cross builds working in Cbuildv2. * Odroids should arrive (when the roads open...) Monday, install Ubuntu and do some tests to see if it's a good platform. == Issues == * Flooding...

12 years, 5 months

[ACTIVITY] Week 37

by Kugan

== Progress == * Addressing patch review - Woking on vrp based zero/sign extension elimination based on feedback - Reworked the patch based and posted the first patch - Speck2k benchmarking in progress for second patch and will post once finished. * spec2k comparison between ARM and x86 - More benchmarks analysed. - Started with the report. Plan to send in next couple of days. - Created more reduced test cases. == Plan == * Continue with spec2k comparison between ARM and x86 * Start divmod work

12 years, 5 months

[ACTIVITY] Week 37

by Will Newton

== Progress == * Committed glibc realloc test * Committed glibc malloc integer overflow patches and requested CVE number * More work on glibc malloc benchmarking * Investigated AArch64 gdb issue and submitted a patch * Investigated gas NEON issue and submitted a patch == Issues == * None == Plan == * Visit Linaro in Cambridge from Tuesday to Thursday (see you there!) * Submit glibc malloc benchmark * Get benchmark numbers for tweaked memcpy * Start glibc pointer guard work -- Will Newton Toolchain Working Group, Linaro

12 years, 5 months

[ACTIVITY] Week 37

by Renato Golin

== Progress == * Patches - Committed lzma fix for cross-compilation - Split ARMv7 fixes in three patches, committed - Reviewed many ARM patches * ImageMagick benchmark - Using IM's convert to test compiler performance - LLVM seems pretty good on x86_64, par on A15 and behind on A9 when compared to gcc 4.7 - http://people.linaro.org/~rengolin/llvm/scripts/ * Profiling - Found a serious bug in LLVM when emitting profile information - mcount segfaults on prelude, luckily only on x86. :D * Phoronix - Found out that our problems with Phoronix were not unique - Might need a bit more of work to get the build scripts changed - And A bit more to get the data out of the reports == Plan == * Profile IM's convert on A9 (after finding out why it's not generating gmon.out) * Hoping to find low-hanging SLP-vectorizer fruits... fingers crossed! * Try something on Jenkins, hopefully it'll be easy to get Phoronix and ImageMagick running on it

12 years, 5 months

[ACTIVITY] report week 37

by Peter Maydell

Progress: * "aarch64 preparation" patchset now in upstream QEMU master. For clarity: this doesn't enable anything by itself, but it's an important foundation for the work being done by people including Linaro, SuSE and Virtual Open Systems, and getting it upstream is both helpful for that work and an indication of progress. * posted a new version of mach-virt patchset (with a PL011 UART) * various planning meetings/calls * put together a "testing" quality branch that integrates the "-cpu host", "mach-virt" and OVS work on KVM v8 control: git://git.linaro.org/people/pmaydell/qemu-arm.git aarch64-kvm -- PMM

12 years, 5 months

[ANNOUNCE] Linaro GCC 4.8 and 4.7 2013.09 released

by Christophe Lyon

The Linaro Toolchain Working Group is pleased to announce the release of both Linaro GCC 4.8 and Linaro GCC 4.7. Linaro GCC 4.8 2013.09 is the sixth release in the 4.8 series. Based off the latest GCC 4.8.1+svn202157 release, it includes performance improvements and bug fixes. Interesting changes include: * Updates to GCC 4.8.1+svn202157 * Improved AArch64 support (instructions, intrinsics). * Backports for bug fixes (PR56315,PR46975,PR57708,PR56979,PR57431,PR58041). Linaro GCC 4.7 2013.09 is the eighteenth release in the 4.7. Based off the latest GCC 4.7.4+svn202210 release, this is the fifth release after entering maintenance. Interesting changes include: * Updates to GCC 4.7.4+svn202210 The source tarballs are available from: https://launchpad.net/gcc-linaro/+milestone/4.8-2013.09 https://launchpad.net/gcc-linaro/+milestone/4.7-2013.09 Downloads are available from the Linaro GCC page on Launchpad: https://launchpad.net/gcc-linaro More information on the features and issues are available from the release pages: https://launchpad.net/gcc-linaro/4.8/4.8-2013.09 https://launchpad.net/gcc-linaro/4.7/4.7-2013.09 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

12 years, 5 months

help testing/upstreaming: [PATCH] libatomic is now supported on AArch64

by Michael Hudson-Doyle

--- Hi all, The reason for my most recent question on the list was that I was investigating if gccgo targeting aarch64 would work. It turns out that it's really close (to building and working for trivial programs, at least): it depends on libatomic which explicitly does not support AArch64, but when you try to build it, it appears to work fine. Hence this patch. Would it be possible for someone to: a) test this for me, or b) explain to me how to test it myself, and/or c) send this upstream, or d) offer advice on how to get it upstream myself? I'd sort of prefer the "explain to me" versions as I also want to run the gccgo/libgo tests :) If someone knows why libatomic unsupports aarch64, that'd be even better (maybe it's just that the sync intrinsics it uses weren't supported by gcc on aarch64 at the time?). Cheers, mwh libatomic/configure.tgt | 5 ----- 1 file changed, 5 deletions(-) diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt index b9e5d6c..7eaab38 100644 --- a/libatomic/configure.tgt +++ b/libatomic/configure.tgt @@ -95,11 +95,6 @@ fi # Other system configury case "${target}" in - aarch64*) - # This is currently not supported in AArch64. - UNSUPPORTED=1 - ;; - arm*-*-linux*) # OS support for atomic primitives. config_path="${config_path} linux/arm posix" -- 1.8.1.2

12 years, 5 months

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