linaro-toolchain

linaro-toolchain@lists.linaro.org

16 participants
5599 discussions

by Peter Maydell

Progress: * VIRT-49 closed out (cp15 migration patches committed upstream) * virtio: ** virtio-mmio patchset v1 now sent out to qemu-devel * misc: ** fixed some instances of undefined behaviour (mostly shift related) diagnosed by clang -fsanitize=undefined ** worked through upstream review backlog, sent target-arm and arm-devs pullreqs Plans: * VirtualOpenSystems (sponsored by Huawei) have sent a patchset for KVM support in QEMU for ARMv8; need to review this and reconcile it with the Linaro work in progress in this area * mach-virt * preparation for Connect -- PMM

12 years

[ACTIVITY] Week 25

by Zhenqiang Chen

== Issues == * None == Progress == * Investigate conditional compare RTL representation. - Fix new fails when expanding conditional compare to cmp_and/cmp_ior. * Identify the root cause for pr57637. == Plan == * Continue on conditional compare.

12 years

[ACTIVITY] Week 25

by Yvan Roux

== Issues == * None. == Progress == * OE Launchpad bug #1192953 - 4.8 g++ failed to find c++ included headers because of the combined usage of --with-sysroot and --with-g++-include-dir - Investigated the issue with Andrew McDermott - found an existing OE workaround * LRA on ARM and AArch64: - Fixed AArch64 failure - Moved to the new one * Cbuild Babysitting == Plan == * Merge review * LRA

12 years

[ACTIVITY] 17 - 21 June 2013

by Omair Javaid

== Progress == * Started re-writing x86 assembly language gdb test cases for arm. * Debugging watchpoints code to investigate issues on arm. * Upgraded chromebook Ubuntu installation to a faster SD card. * Tried to resolve various travel hurdles. Gathering different kind of documents for future travel, submitted passport for extension etc. == Plan == * Submit more gdb patches to mailing list. * Wind up work on translation of gdb test cases in arm assembly. * Further investigation about watchpoint issues on arm. * Work on filing US and UK visit visas.

12 years

[ACTIVITY] 17-21 June 2013

by Venkataramanan Kumar

== Progress == * AArch64 LTO and PGO support. Tweaked make file to run coremark on V8/openembedded model Experimenting with PGO runs for coremark. * AAarch64 testing Set up Cross build and test in V8 model for GCC testsuites on one of workstation in lab. Completed g++ testsuite with V8 model for gcc trunk. Running gcc tests now. * Installed Ubuntu 13.04 on Chrome book. == Plan == * Complete gcc testsuite with runs with trunk and trunk+gprof GCC patches. * Continue LTO and PGO runs for AArch64 * Linaro connect preparation, check VISA status. ==issues== * libssp support for AArch64 This work is currently in hold. Needed frame layout changes before restarting. * Waiting for some inputs from Rob on Bootstrap issue with GCC on V8 model

12 years

[ACTIVITY] 17-21 June 2013

by Kugan

== Progress == * Generate single call to divmod - Addressed review comments - Proposed a new patch for discussion * spec2k comparison between ARM and x86 - Obtained Profile results for both architectures - Analysing gzip and found some register allocation issues. * VRP based zero/sign extension - Still no review for rtl changes - Pinged again == Plan == * Continue with spec2k comparison between ARM and x86

12 years

[ACTIVITY] June 17-21

by Rob Savoye

== Progress == * Added support to cbuildv2 to handle merges from GCC trunk. * Merged backports of 199694 199705 199733 199734 199739 199810 199814 199533 200019 200020 200061 200062 200096 200148 200152. * Managed to survive making complex travel plans for the next few weeks. * Fixed eembc and denbench benchmarks so they work again. == Plan == * Work on benchmarking & testing database, more graphs, write up presentation. * Fix running spec2000 benchmark, produce some results. * Commit backports to svn as merges approved. * Off on leave Wed till Connect. Will be 100% offline. == Issues == * Backports of 199792, 199959 have major conflicts. Required patches for these to be merged not in backports list. * Turns out benchmarks have not worked for several months, particularly spec2000 still doesn't want to run.

12 years

2013.06 issues with semi-hosting on Foundation Model w/ gcc

by rorycollins＠hushmail.com

Still having the issue of FM/semi-hosting not catching seg-faults using 2013.06. With "aem-ve.specs", a fault seems to call main() repeatedly. With "dimon.specs", FM hangs. Any ideas how to properly compile/deal with faults in semi-hosting mode? thanks, Rory === hello.c === #include <stdio.h> int main(int argc, char *argv[]) { printf("hello.\n"); * ((unsigned int *) 0) = 0; // cause seg-fault return 0; } === compile/run === .../gcc-linaro-aarch64-none-elf-4.8-2013.06_linux/bin/aarch64-none-elf-gcc -specs=aem-ve.specs -march=armv8-a -c hello.c .../gcc-linaro-aarch64-none-elf-4.8-2013.06_linux/bin/aarch64-none-elf-gcc -o hello -specs=aem-ve.specs -march=armv8-a hello.o .../Foundation_v8 --image hello --quiet --semihost-cmd=hello hello. hello. hello. hello. hello. ...

12 years

[ACTIVITY] 17-21 June 2013

by Christophe Lyon

== Progress == * Completed list of backports from trunk to linaro-4.8 for 2013.07 release and sent it to Rob. * Merged backport of address sanitizer in linaro-4.8 branch * Aarch64 frame growing downward: checking what really needs to be changed in GCC. Documentation not very verbose :-) * Various attemps to resurrect my old testsuite patch to be stricter at excluding some unsupported configurations. * Internal support == Next == * Aarch64 frame growing downard. * Disable peeling: make the vectorizer less aggressive * Neon intrinsics/vuzip/veor: resume work * Book hotel/flight for Connect.

12 years

[ACTIVITY] Week 24

by Renato Golin

== Progress == * Release 3.3 - Finally public http://llvm.org/releases/download.html#3.3 http://llvm.org/releases/3.3/docs/ReleaseNotes.html * Pandaboard - We lost two bots this week: - linaro-panda-01: buildslave binary segfaults, needs fresh re-install? - linaro-panda-02: GCC installation is broken, needs fresh install!! - This means we need: - At least two boards for each bot - At least one extra board of each type, off-line to save power/space - A standard Image on a gz file to flash & boot quickly, for each type * Chromebook LNT - Binary search on patch that broke the buildbot, found the culprit - Reduced the problem, bug posted, discussing http://llvm.org/bugs/show_bug.cgi?id=16393 * CBuild - Built Clang+LLVM in CBuild, need benchmarks, sent a patch, waiting for merge * Phoronix results - Adding them to internal (pw protected) website to avoid public confusion - The numbers are meaningless for now and we don't want panic within the general public: http://people.linaro.org/toolchain-benchmarks/llvm/ - Visualization still broken. Works well only locally on Firefox. Why not HTML? Why not PNG? Sigh... * Administrativia / Others - Lots of patches to review - Auto-vectorizer now turned on by default on -O2 and -Os! - Meeting with LLVMLinux folks, good progress, good plans, trying to get more traction in that direction on Connect - Trial of "ARM maintenance" backlog item: http://llvm.org/bugs/show_bug.cgi?id=16387 == Plan == * Fix LNT bug * Implement AEABI divmod/udivmod calls * Try CBuild benchmark again (when patch merged) * Carefully analyse what's the best configuration for the pandas and produce a pre-packed image * NOT put them back before they're stable * But put TWO pandas as self-hosting (and leave Galina's alone) * Check why Phoronix result pages are not working Time allowing... * Have a look at PerfDB * Write a thing or two about the optimization levels in LLVM for the official docs

12 years

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