linaro-toolchain

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5574 discussions

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

13 years, 3 months

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)

13 years, 3 months

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

13 years, 3 months

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

13 years, 3 months

[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

13 years, 3 months

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

13 years, 3 months

[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

13 years, 3 months

[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

13 years, 3 months

[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.

13 years, 3 months

[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

13 years, 3 months

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