linaro-toolchain December 2012

linaro-toolchain@lists.linaro.org

20 participants
47 discussions

[ACTIVITY] 10 - 14 December 2012

by Christophe Lyon

== Progress == * gdb-linaro-7.5-2012.12 release - Updated wikis about gdb sources import from upstream and about gdb-linaro release - still some trouble with infrastructure to achieve the release * 64-bits ops in Neon: no news from upstream * disable-peeling: upstream advice is to enable & tune the vectorizer cost model first, but there seems to be an agreement that if unaligned accesses have no penalty, peeling should not be considered. Updated the vectorizer-cost-model blueprint * builtin_bswap16 backport to linaro-4.7: the i686 regression was caused by the build process. Re-spawned the jobs after fixing the remaining arm issue * cbuild: briefly looked at some scripts to better understand the whole system, while tracking a problem in the gdb validation reports == Next == * handle 64-bits bitops in Neon and disable-peeling feedback from upstream if any * finish builtin_bswap16 backport == Future == * on holidays for 2 weeks (Dec 22th-Jan 6th)

11 years, 11 months

[ACTIVITY] 10 - 14 December

by Matthew Gretton-Dann

== Blueprints == Initial Current Actual initial-aarch64-backport 31 Oct 2012 31 Dec 2012 aarch64-baremetal-testing 31 Oct 2012 31 Dec 2012 backport-fma-intrinsic 31 Dec 2012 Brice fused-multiply-add-support 31 Dec 2012 Brice gcc-investigate-lra-for-arm 31 Dec 2012 31 Dec 2012 fix-gcc-multiarch-testing 31 Dec 2012 31 Jan 2013 == Progress == * Admin * Interviewing * Took over from Michael * New Starter prep * Updated card drafts * Discussions about LEG/TCWG interactions * Discussions about KVM * Discussions about Toolchain/Platform interactions == Next Week == * Upload card drafts into Jira. * initial-aarch64-backport and aarch64-baremetal-testing * Complete documentation == Future == * gcc-investigate-lra-for-arm * Analyse benchmarks * Run HOT/COLD partitioning benchmarks * Analyse ARM results * On x86_64 to see what the actual benefit we could get * fix-gcc-multiarch-testing * Come up with strawman proposal for updating testsuite to handle testing with varying command-line options. -- Matthew Gretton-Dann Linaro Toolchain Working Group matthew.gretton-dann(a)linaro.org

11 years, 11 months

[ACTIVITY] report week 50

by Peter Maydell

* qemu-linaro 2012.12 release * arm-devs pullreq sent * wrote a patch for some minor TCG leaks * more virtio patch review * various other upstream arm devs review * discussion re KVM planning, etc * usual collection of meetings and calls KVM blueprint progress tracker (note new url): http://cbuild.validation.linaro.org/helpers/backlog?group_by=topic&colour_b… -- PMM

11 years, 11 months

Clearing out past branches

by Michael Hope

Hi Ramana. You have the following branches remaining on Launchpad: * lp:~ramana/gcc-linaro/47-lower-subreg-experiments * lp:~ramana/gcc-linaro/47-improve-neon-intrinsics * lp:~ramana/gcc-linaro/47-nobble-promote-mode * lp:~ramana/gcc-linaro/47-smin-umin-idiom Which are obsolete, which should be spun out into backlog blueprints, and which should be taken over by someone? -- Michael

11 years, 11 months

[Activity] Week 50

by Zhenqiang Chen

Summary: * Validate RM toolchain * Prepare Linaro Toolchain Binaries 2012.12 release. * Collect performance data for different branch cost. Details: 1. Validate RM toolchain release. 2. Collect denbench and spec2000int performance data for branch cost tuning. 3. Fix README issue (lp:1068402) by dynamically create README.txt: * The hard coded README.txt is removed. * Update build scripts to generate the README.txt, which depends on - README.texi, which is the common template for all TARGETS. - config.texi, which sets the default configuration for the TARGET. Each TARGET has a config.texi. - version.texi, created during build, includes GCC_VERSION, GDB_VERSION and TOOLCHAIN_VERSION. 4. Update Linaro GCC and GDB to 2012.12 in Linaro crosstool-ng, workaround gdb mingw32 link fail issue (due to mbsrtowcs is redefined in gdb/gnulib), finish the smoke test and spawn release builds. Plans: * Investigate how branch cost impacts on code generation. * Release Linaro Toolchain Binaries 2012.12. Best regards! -Zhenqiang

11 years, 11 months

[ANNOUNCE] Linaro GCC 4.7 and 4.6 2012.12 released

by Yvan Roux

The Linaro Toolchain Working Group is pleased to announce the 2012.12 release of both Linaro GCC 4.7 and Linaro GCC 4.6. Linaro GCC 4.7 2012.12 is the ninth release in the 4.7 series. Based off the latest GCC 4.7.2+svn194184 release, it includes ARM-focused performance improvements and bug fixes. Interesting changes include: * Updates to GCC 4.7.2+svn19184 * Better 64 bit shifts in NEON * Also includes arm/aarch64-4.7-branch up to svn revision 194154. Fixes: * LP #1060221 Linaro GCC 4.6 2012.12 is the 22st release in the 4.6 series. Based off the latest GCC 4.6.3+svn194340 release, this is the ninth release after entering maintenance. Interesting changes include: * Updates to 4.6.3+svn194340 The source tarballs are available from: https://launchpad.net/gcc-linaro/+milestone/4.7-2012.12 https://launchpad.net/gcc-linaro/+milestone/4.6-2012.12 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/4.7/4.7-2012.12 https://launchpad.net/gcc-linaro/4.6/4.6-2012.12 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 -- Yvan Roux Linaro Toolchain Working Group yvan.roux(a)linaro.org

11 years, 11 months

[ANNOUNCE] Linaro GDB 7.5 2012.12 released

by Christophe Lyon

The Linaro Toolchain Working Group is pleased to announce the release of Linaro GDB 7.5. Linaro GDB 7.5 2012.12 is the second release in the 7.5 series. ***NOTE*** Linaro GDB 7.5 2012.12 is identical to the FSF GDB 7.5.1 release, except for the change in version number and Linaro branding, since all Linaro GDB features were already accepted upstream and are included in the FSF release as-is. Future releases in the Linaro GDB 7.5 series may include additional ARM-focused bug fixes and enhancements. The source tarball is available at: https://launchpad.net/gdb-linaro/+milestone/7.5-2012.12 More information on Linaro GDB is available at: https://launchpad.net/gdb-linaro Christophe Lyon

11 years, 11 months

[ANNOUNCE] Linaro QEMU 2012.12 released

by Peter Maydell

The Linaro Toolchain Working Group is pleased to announce the release of Linaro QEMU 2012.12. Linaro QEMU 2012.12 is the latest release of qemu-linaro. Based off upstream (trunk) QEMU, it includes a number of ARM-focused bug fixes and enhancements. There are no major changes in this month's release, but it has been updated to be based on upstream's recent 1.3.0 release. The source tarball is available at: https://launchpad.net/qemu-linaro/+milestone/2012.12 More information on Linaro QEMU is available at: https://launchpad.net/qemu-linaro -- PMM

11 years, 11 months

[PATCH] Cortex Strings AArch64 implementations of memcpy, memset, strcmp

by Marcus Shawcroft

This patch adds aarch64 implementations of memcpy, memset and strcmp to cortex strings. /Marcus

11 years, 11 months

FPU error with arm-linux-gnueabihf-gcc 3.7.3

by Zhangfei Gao

We met build error when using arm-linux-gnueabihf-gcc 3.7.3 for Huawei s40v200 kernel, which is 3.0.8, log is below. HAVE issue: gcc-linaro-arm-linux-gnueabihf-4.7-2012.11-20121123_linux.tar.bz2 gcc-linaro-arm-linux-gnueabihf-4.7-2012.10-20121022_linux.tar.bz2 gcc-linaro-arm-linux-gnueabi-2012.03-20120326_linux.tar.bz2, with build flag *--with-float=softfp* NO issue: arm-eabi-gcc 4.4.0, which comes from android package. Any suggestion? Thanks make[1]: `include/generated/mach-types.h' is up to date. CALL scripts/checksyscalls.sh CHK include/generated/compile.h AS arch/arm/mach-godbox/hi_pm_sleep.o arch/arm/mach-godbox/hi_pm_sleep.S: Assembler messages: arch/arm/mach-godbox/hi_pm_sleep.S:456: Error: selected processor does not support requested special purpose register -- `mrs r10,FPEXC' arch/arm/mach-godbox/hi_pm_sleep.S:456: Error: selected processor does not support requested special purpose register -- `msr FPEXC,r2' arch/arm/mach-godbox/hi_pm_sleep.S:456: Error: selected processor does not support requested special purpose register -- `mrs r2,FPSCR' arch/arm/mach-godbox/hi_pm_sleep.S:546: Error: selected processor does not support requested special purpose register -- `msr FPEXC,r2' arch/arm/mach-godbox/hi_pm_sleep.S:546: Error: selected processor does not support requested special purpose register -- `msr FPSCR,r10' arch/arm/mach-godbox/hi_pm_sleep.S:546: Error: selected processor does not support requested special purpose register -- `msr FPEXC,r9' make[1]: *** [arch/arm/mach-godbox/hi_pm_sleep.o] Error 1 make: *** [arch/arm/mach-godbox] Error 2 make: *** Waiting for unfinished jobs....

11 years, 11 months

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linaro-toolchain December 2012