linaro-toolchain October 2013

linaro-toolchain@lists.linaro.org

25 participants
51 discussions

by Will Newton

== Progress == * Committed glibc ARM pointer encryption support. * Committed binutils AArch64 ifunc support. * Committed glibc malloc test patches. * Committed glibc setjmp/longjmp Thumb patches. * Backported glibc aarch64 gprof support. * Submitted qemu AArch32 VSEL patch. * Backported binutils AArch64 GOT layout patches. == Issues == * None == Plan == * Backports for 2013.10 * Follow up qemu patch * malloc -- Will Newton Toolchain Working Group, Linaro

10 years, 6 months

[ACTIVITY] 29 Sept-4 Oct 2013

by Christophe Lyon

== Progress == * AArch64 frame grows downward: no feedback yet. * Disable-peeling: Vectorizer cost model has been changed upstream, the current default now includes the effect of disabling peeling. I have submitted benchmark jobs to check the exact effet; expecting some regressions since the reduced test case I was working on now generates the same code as with my patch. * AArch64 bootstrap failure: build it still on-going, so still hoping to reproduce it. * GCC trunk validation: - good progress on reporting - cross-validating several configurations (currently 18) for each upstream commit is too much for our compute farm to handle. Reduced to patches related to ARM/AArch64, but then we can miss regressions caused by other generic patches. * Backports: - committed a few simple ones. == Next == * AArch64 frame grows downward: continue * Disable-peeling/new vectorizer cost model: analyze bench results * Backports : check which ones can be reasonably done

10 years, 6 months

[ACTIVITY] Week 40

by Yvan Roux

== Issues == * None. == Progress == * 2013-10 release. - Reviewed some backports. * LRA on AArch32: - Testsuite analysis showed one remaining issue in ARM mode (with the movmisalignv8hi_neon_store insn handling). - Ran Benchmarks on Calxedas, some failures due to the same bug. - Benchmarks on tcpandas ongoing. - Benchmarks results analysis ongoing. == Next == * Continue on LRA.

10 years, 6 months

[ACTIVITY] 28 September -1 October 2013

by Venkataramanan Kumar

== Progress == * libssp Updated review comments given by glibc maintainer and rerun tests. There are some test failures, suspecting issue in using ALIGN_UP/DOWN macro. Debugging them. * gprof support for aarch64 Upstreamed patches to GCC and backported to Linaro 4.8 branch. Closed the cards for gprof work. * 1-1 Meet with Christophe. == Plan == * Continue libssp support. * Restart Aarch64 boot strap in a server machine. * Book hotel ticket for connect. * PGO for aarch64

10 years, 6 months

[Activity] Sept 30 - Oct 5

by Rob Savoye

== Progress == * Fixed my laptop's desktop by upgrading to saucy & Gnome 3.10. * Continuing with Jenkins/Cbuildv2/Git integration. Since this is an ongoing task, I think I'm going to stop listing it every week. :-) * Fixed more bugs in Cbuildv2 when handling branches and revisions. * Compared source tarballs for binutils and gcc, Linaro releases against Cbuildv2 produced ones. * Added support to Cbuildv2 for building binutils source releases in the same style as src-release. * Worked on aarch64 builds on real hardware to test adding libatomic and go to builds. * Added support to build all documentation, which is used when building tarballs. * Reviewed and applied Cbuildv2 patches from Ryan. == Plan == * Try to work around problem with importing test results. * Continued work on release building via Cbuildv2. * Get Odroid boards working reliably, ordered AC powered USB hubs to work around problem with exterrnal USB drives.

10 years, 6 months

[ACTIVITY] 30 September - 4 October 2013

by Omair Javaid

== Progress == * Traveled to Islamabad for US Visa Interview, got verbal confirmation of visa. Passport will be back this week. (TCWG-250) * GDB ARM Process Record Thumb32 Support: Submitted a new patch upstream which fixed bugs. (TCWG-270) * Tested arm process record bug fixes in various configurations to get pass rate statistics for the new patch. (TCWG-280) * Reviewing changes required for syscall support for gdb arm process record. == Plan == (TCWG-267), (TCWG-268) and (TCWG-269) * Ping or Send response to comments. (TCWG-280) * Start implementation and complete most part of coding next week. * If Passport comes back with visa stamped: plan/book travel to US, gather connect related information and notify all concerned.

10 years, 6 months

[ACTIVITY] Sept 29 - Oct 4

by Kugan

== Progress == * Lnaro 4.8 Bugfix - Fixed Bugs LP1232017 and LP1234060 - gmp and mpfr make check now clean * spec2k comparison between ARM and x86 - Looked at register allocation issues - Started working on slides for connect == Plan == * Continue with spec2k comparison between ARM and x86 * Start again with 64bit division == Misc == * October 7th Public Holiday.

10 years, 6 months

[ACTIVITY] Sept 29 - Oct 4

by Ryan Arnold

== Progress == * Finished most new employee onboarding * Setup Chromebook with Linux Ubuntu (crouton) development environment. * glibc [PATCH] Update generic swapon definition to match prototype. * CBuildV2 [PATCH] Fix stamp-configure* name for git repos with specific named branches [PATCH] Only return early on error following configure [PATCH] Remove dryrun wrapper from git-new-workdir invocation. [PATCH] Fix stamp name for git repos with specific named branches. [PATCH] Remove lynx check from configure[.ac]. It's no longer used. Started working on a patch to fix git working directory branch name for named branches. == Plan == * Install Fedora 19 on work laptop that just (Oct 4) arrived and setup working environment. * Finish first-pass fixes on cbuildv2. * Complete patch to fix git working directory branch name. * Start working on a glibc.git conf file to potentially move away from eglibc.git. * Fix cbuildv2 fetch time stamps. They seem to always be downloading tar balls. * Fix stamp output so that it doesn't imply that stamps or older than a file when stamps do not yet exist. == Issue == * Temporary desktop corruption and couldn't Linux 'rescue' from an encrypted drive. Spent part of Tuesday rescuing my work environment off the drive and reinstalling system.

10 years, 6 months

[ACTIVITY] Week 40

by Renato Golin

== Progress == * EEMBC - Ran on multiple boards, collected statistical data, wrote some scripts to do it again - Found a few regressions on GCC 4.9, reported internally - Found 4 benchmarks in which LLVM is a lot worse - Looking at RGBCMY which GCC is able to vectorise - LLVM transforms the pointer access into a PHI cycle, which is wrongly interpreted as a reduction variable by the loop vectorizer. * Background - Patch reviews and discussions as usual - TCWG rack has arrived! - Got another Chromebook and an ODroid XU to play with next week == Plan == * Update script to rank the compilers according to EEMBC results on the same machine * Try to teach the loop vectorizer to not treat load/store PHIs as a reduction variable * Set up some temporary buildbots with new hardware

10 years, 7 months

process for enabling gccgo in Linaro GCC binary distributions

by Michael Hudson-Doyle

Hi, With the patch I just sent to this list in place, gccgo builds for aarch64. I don't know how well it _works_ -- "hello world" builds and runs -- but I would like to ask what the process would be to get gccgo included in the binary distributions of GCC that Linaro makes. Cheers, mwh

10 years, 7 months

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linaro-toolchain October 2013