- linaro-toolchain - lists.linaro.org

by Zhenqiang Chen

== Issues == * None. == Progress == * Commit the patch to support S2_<op1>_<Cn>_<Cm>_<op2> system register in AARCH64 GAS. * Identify the issue files in parallel build fail (PR57683) and backport r197467 and r198999 to FSF GCC 4.8. * Verify Linaro crosstool-ng to make sure Fortran is supported in all builds. * Try PGO build for ifcombine heuristics. But got "the control flow of function .. does not match its profile data". * Investigate loop-invariant heuristics and rtx cost to select SYMBOL_REF. But tests did not show performance gain. * Investigate Coremark conditional compare issue in Cortext-M since the BRANCH_COST is 1. == Plan == * Continue on CCMP. * Discuss ifcombine heuristics with upstream. == Planed leaves == * Dec 3 & 5: Annual leaves

11 years, 9 months

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[ACTIVITY] 18-22 Nov 2013

by Kugan

== Progress == - cbuild2 benchmarking - Done the initial frame work (just with one benchmark) and sent out for review - 64bit division for ARMv7-A - Posted the patch and added target hook documentation required == Plan == - Address zero/extension review comments - post 64bit divide patch with the required documentation - investigative bootstrapping issues - still waiting for h/w access

11 years, 9 months

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Re: Heap reclaim question/documentation

by Trevor Woerner

On 21 November 2013 07:12, Karlsson, Magnus <Magnus.Karlsson(a)lsi.com> wrote: > Just wondering if somebody could point me to a good document on how the heap > reclamation algorithm works for memory allocated in a user space program > using the regular malloc/calloc functions. Section 7.1.3, whose sub-sections include: "Implementation of malloc() and free()", "Tools and libraries for malloc debugging", and "Controlling and monitoring the malloc package", of Michael Kerrisk's "The Linux Programming Interface" (http://man7.org/tlpi/index.html) is one of the better reads of which I'm aware. He recommends reading the man pages for malloc_info, malloc_stats, mallopt, and mallinfo (among others) for more information. In the C language, reclamation of allocated memory is usually driven by the application. When you free() some memory, internal structures know the size of what was previously allocated at the given location (i.e. what was given to you by malloc()) and simply release that back into the heap. There are ways to tweak the allocation of memory.

11 years, 9 months

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[Weekly] 18-22 Nov 2013

by Michael Collison

== This week == - This week was mostly spent on coming up to speed on the Linaro backport process - Backport 202872 - Merged changes from trunk to Linaro branch == Next week == - Complete backport of 202872 - Begin work on other assigned backports == Future == No concrete plans yet.

11 years, 9 months

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condition_variable_any missing from libstdc

by Mark Pupilli

---------- Forwarded message ---------- From: Mark Pupilli <mpupilli(a)gmail.com> Date: 17 November 2013 14:07 Subject: condition_variable_any missing from libstdc To: linaro-toolchain(a)lists.linaro.org Hi, I sent this message a week ago but I don't think I was subscribed to the list correctly. Apologies if it is repeated (it doesn't show in the archive). I have a problem with my cross build of (Linaro GCC 4.8-2013.10). I get the following runtime linker errors regarding condition_variable_any: "relocation error: /usr/local/lib/librobolib.so: symbol _ZNSt22condition_variable_anyC1Ev, version GLIBCXX_3.4.11 not defined in file libstdc++.so.6 with link time reference" If I examine my built version of libstdc with readelf I get the following output: $ readelf -s ./src/.libs/libstdc++.so.6 | grep condition 10383: 000c58d8 68 FUNC LOCAL DEFAULT 11 _ZNSt15error_conditionC1E 10818: 000c58d8 68 FUNC LOCAL DEFAULT 11 _ZNSt15error_conditionC2E 10837: 000c5944 40 FUNC LOCAL DEFAULT 11 _ZNKSt15error_condition8c 10942: 000c591c 40 FUNC LOCAL DEFAULT 11 _ZNKSt15error_condition5v Where as with the apt-get installed 4.6 version of the toolchain shows: $ readelf -s /usr/arm-linux-gnueabi/lib/libstdc++.so.6 | grep condition 777: 000523b1 12 FUNC GLOBAL DEFAULT 12 _ZNSt22condition_variable@@GLIBCXX_3.4.11 929: 000522f1 104 FUNC GLOBAL DEFAULT 12 _ZNSt18condition_variable@@GLIBCXX_3.4.11 1037: 000523b1 12 FUNC GLOBAL DEFAULT 12 _ZNSt22condition_variable@@GLIBCXX_3.4.11 1198: 000522f1 104 FUNC GLOBAL DEFAULT 12 _ZNSt18condition_variable@@GLIBCXX_3.4.11 1686: 00052385 14 FUNC GLOBAL DEFAULT 12 _ZNSt18condition_variable@@GLIBCXX_3.4.11 2166: 00052359 12 FUNC GLOBAL DEFAULT 12 _ZNSt18condition_variable@@GLIBCXX_3.4.11 2438: 00052359 12 FUNC GLOBAL DEFAULT 12 _ZNSt18condition_variable@@GLIBCXX_3.4.11 2685: 00052365 16 FUNC GLOBAL DEFAULT 12 _ZNSt18condition_variable@@GLIBCXX_3.4.11 3186: 00052395 26 FUNC GLOBAL DEFAULT 12 _ZNSt22condition_variable@@GLIBCXX_3.4.11 3448: 00052395 26 FUNC GLOBAL DEFAULT 12 _ZNSt22condition_variable@@GLIBCXX_3.4.11 3643: 00052375 14 FUNC GLOBAL DEFAULT 12 _ZNSt18condition_variable@@GLIBCXX_3.4.11 (Which is still missing anything to do with condition_variable_any, but given that my native 4.8 compiler doesn't contain this symbol either and my code builds and runs natively, I assume this is how it should be). Here is my build's version information: $ arm-linux-gnueabi-gcc -v Using built-in specs. COLLECT_GCC=arm-linux-gnueabi-gcc COLLECT_LTO_WRAPPER=/home/mark/arm-linux-gnueabi-4.8.2/libexec/gcc/arm-linux-gnueabi/4.8.2/lto-wrapper Target: arm-linux-gnueabi Configured with: ../gcc-linaro-4.8-2013.10/configure --target=arm-linux-gnueabi --prefix=/home/mark/arm-linux-gnueabi-4.8.2 --with-local-prefix=/home/mark/arm-linux-gnueabi-4.8.2 --disable-nls --enable-shared --enable-multilib --disable-decimal-float --enable-languages=c,c++ --with-mpfr-include=/home/mark/gcc-4.8-arm-linux/gcc-build/../gcc-linaro-4.8-2013.10/mpfr/src --with-mpfr-lib=/home/mark/gcc-4.8-arm-linux/gcc-build/mpfr/src/.libs --enable-clocale=gnu --enable-threads=posix --enable-__cxa_atexit --disable-libstdcxx-pch --with-system-zlib --with-headers=/home/mark/arm-linux-gnueabi-4.8.2/include --with-libs=/home/mark/arm-linux-gnueabi-4.8.2/lib --enable-libstdcxx-threads --enable-libstdcxx-time Thread model: posix gcc version 4.8.2 20131014 (prerelease) (Linaro GCC 4.8-2013.10) I configured libstdc++-v3 respectively as follows: $ ../gcc-linaro-4.8-2013.10/libstdc++-v3/configure --host=arm-linux-gnueabi --prefix=/home/mark/arm-linux-gnueabi-4.8.2/ --enable-multilib --enable-shared --disable-nls --disable-libstdcxx-pch --enable-libstdcxx-threads --enable-libstdcxx-time I assumed the relevant entries to enable C++11 threading and condition variables etc would have been --enable-libstdcxx-threads --enable-libstdcxx-time. I must be missing some other options or have done something else wrong. Any suggestions? thanks, Mark

11 years, 9 months

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[ACTIVITY] Week 47

by Renato Golin

== Progress == * Short week - Two days off due to a messy implant bloating my face - Should be better on Monday * Cambridge LLVM Day, Cambridge University Computer Lab - Presented the status of the auto-vectorizer in LLVM * Releasing candidate 1 of LLVM 3.4 - All tests green, running benchmarks - http://people.linaro.org/~rengolin/llvm/ * Buildbots - Adding Chromebook self-hosting (fixing MCJIT tests) - Adding Chromebook test-suite (fixing ClamAV) - Will turn off the old Chromebook and re-install it for benchmarks - Will add an Odroid XU in pair with the community one to be added next week * Background - Patch reviews, discussions * EEMBC rgbcmy implementation requires extensive changes to the compiler - Will deal with them on the background over the next months - While checking other EEMBC problems == Plan == * Continue the 3.4 release * Look at vectorization pragmas * Look at other EEMBC results

11 years, 9 months

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[ACTIVITY] Week 47

by Will Newton

== Progress == * Committed a couple of gdb patches * Debug malloc to a working state, performance improved * First version of glibc aarch64 ifunc support * Found a couple of bugs in binutils aarch64 ifunc support == Issues == * Missed two days due to illness * Power cut and broadband outage on Wednesday afternoon == Plan == * Respin and submit glibc docs patches * Submit glibc aarch64 ifunc code -- Will Newton Toolchain Working Group, Linaro

11 years, 9 months

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Is there any description about the toolchain release file naming rule?

by YongQin Liu

Hi, All Under this site http://releases.linaro.org/13.09/components/toolchain/binaries/, there are many files released. but do we have any description on the file naming rules? Sorry for my simple question, I just want to know what the files are used for. which one I should select when I need to use toolchain. Like the files below, I can guess that aarch64 means that it will generate files run on aarch64 platform, but I can not guess what's the difference between linux and none, and not know what's the difference between gnu and elf. So if you have any wiki/link about the the naming rules or description about the file, please share me. crosstool-ng-linaro-1.13.1-4.8-2013.09-01.tar.bz2 crosstool-ng-linaro-1.13.1-4.8-2013.09.tar.bz2 gcc-linaro-aarch64-linux-gnu-4.8-2013.09-01_linux.tar.bz2 gcc-linaro-aarch64-linux-gnu-4.8-2013.09-01_linux.tar.xz gcc-linaro-aarch64-linux-gnu-4.8-2013.09-01_runtime.tar.bz2 gcc-linaro-aarch64-linux-gnu-4.8-2013.09-01_src.tar.bz2 gcc-linaro-aarch64-linux-gnu-4.8-2013.09-01_win32.zip gcc-linaro-aarch64-linux-gnu-4.8-2013.09-01_win32.zip.xz gcc-linaro-aarch64-linux-gnu-4.8-2013.09-20130912_win32.exe gcc-linaro-aarch64-linux-gnu-4.8-2013.09_linux.tar.bz2 gcc-linaro-aarch64-linux-gnu-4.8-2013.09_linux.tar.xz gcc-linaro-aarch64-linux-gnu-4.8-2013.09_runtime.tar.bz2 gcc-linaro-aarch64-linux-gnu-4.8-2013.09_src.tar.bz2 gcc-linaro-aarch64-linux-gnu-4.8-2013.09_win32.zip gcc-linaro-aarch64-linux-gnu-4.8-2013.09_win32.zip.xz gcc-linaro-aarch64-none-elf-4.8-2013.09-01_linux.tar.bz2 gcc-linaro-aarch64-none-elf-4.8-2013.09-01_linux.tar.xz gcc-linaro-aarch64-none-elf-4.8-2013.09-01_win32.zip gcc-linaro-aarch64-none-elf-4.8-2013.09-01_win32.zip.xz gcc-linaro-aarch64-none-elf-4.8-2013.09_linux.tar.bz2 gcc-linaro-aarch64-none-elf-4.8-2013.09_linux.tar.xz gcc-linaro-aarch64-none-elf-4.8-2013.09_win32.zip gcc-linaro-aarch64-none-elf-4.8-2013.09_win32.zip.xz gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09-01_linux.tar.bz2 gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09-01_linux.tar.xz gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09-01_runtime.tar.bz2 gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09-01_win32.zip gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09-01_win32.zip.xz gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09_linux.tar.bz2 gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09_linux.tar.xz gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09_runtime.tar.bz2 gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09_src.tar.bz2 gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09_win32.zip gcc-linaro-aarch64_be-linux-gnu-4.8-2013.09_win32.zip.xz gcc-linaro-aarch64_be-none-elf-4.8-2013.09-01_linux.tar.bz2 gcc-linaro-aarch64_be-none-elf-4.8-2013.09-01_linux.tar.xz gcc-linaro-aarch64_be-none-elf-4.8-2013.09-01_win32.zip gcc-linaro-aarch64_be-none-elf-4.8-2013.09-01_win32.zip.xz gcc-linaro-aarch64_be-none-elf-4.8-2013.09_linux.tar.bz2 gcc-linaro-aarch64_be-none-elf-4.8-2013.09_linux.tar.xz gcc-linaro-aarch64_be-none-elf-4.8-2013.09_win32.zip gcc-linaro-aarch64_be-none-elf-4.8-2013.09_win32.zip.xz gcc-linaro-arm-linux-gnueabihf-4.8-2013.09-20130912_win32.exe gcc-linaro-arm-linux-gnueabihf-4.8-2013.09_linux.tar.bz2 gcc-linaro-arm-linux-gnueabihf-4.8-2013.09_linux.tar.xz gcc-linaro-arm-linux-gnueabihf-4.8-2013.09_runtime.tar.bz2 gcc-linaro-arm-linux-gnueabihf-4.8-2013.09_src.tar.bz2 gcc-linaro-arm-linux-gnueabihf-4.8-2013.09_win32.zip gcc-linaro-arm-linux-gnueabihf-4.8-2013.09_win32.zip.xz gcc-linaro-armeb-linux-gnueabihf-4.8-2013.09_linux.tar.bz2 gcc-linaro-armeb-linux-gnueabihf-4.8-2013.09_linux.tar.xz gcc-linaro-armeb-linux-gnueabihf-4.8-2013.09_runtime.tar.bz2 gcc-linaro-armeb-linux-gnueabihf-4.8-2013.09_win32.zip gcc-linaro-armeb-linux-gnueabihf-4.8-2013.09_win32.zip.xz -- Thanks, Yongqin Liu --------------------------------------------------------------- #mailing list linaro-android(a)lists.linaro.org <linaro-dev(a)lists.linaro.org> http://lists.linaro.org/mailman/listinfo/linaro-android linaro-validation(a)lists.linaro.org <linaro-dev(a)lists.linaro.org> http://lists.linaro.org/pipermail/linaro-validation

11 years, 9 months

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CortexM toolchain recommendations

by Trevor Woerner

Hi toolchain gurus, I am about to start some projects working with CortexMx devices and am wondering if anyone has an opinion on which toolchain(s) I should use/investigate? Being a fan of Linaro, my first instinct would be to use cbuild2 to build an arm-none-eabi- toolchain from a 4.8.x tree. But looking around I can't help notice https://launchpad.net/gcc-arm-embedded. Does anyone know if gcc-arm-embedded has things the Linaro toolchain doesn't wrt Cortex M0, M3, and M4 device/instruction support? Best regards, Trevor

11 years, 9 months

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Fwd: [Bug target/59216] [ARM] negdi*extendsidi regression

by Christophe Lyon

-------- Original Message -------- Subject: [Bug target/59216] [ARM] negdi*extendsidi regression Date: Wed, 20 Nov 2013 18:06:14 +0100 From: christophe.lyon at st dot com <gcc-bugzilla(a)gcc.gnu.org> To: Christophe LYON <christophe.lyon(a)st.com> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59216 --- Comment #2 from christophe.lyon at st dot com --- Basically, the working code does: asrs r3, r2, #31 negs r2, r2 sbc.w r3, r3, r3, lsl #1 while the failing one does: negs r2, r2 asrs r3, r2, #31 -- You are receiving this mail because: You reported the bug.

11 years, 9 months

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Testing Android on LAVA

by Renato Golin

Hi LAVA folks, I don't know if you guys know, but Android is moving to LLVM for the next release or so. As such, we'll need to do a lot of testing between now and next release to make sure each component can be compiled (and runs correctly) with LLVM on an incremental basis. We're trying to come up with a way for remotely testing the Linux kernel booting on ARM devices, more specifically an Android stack, and I'm finding it hard to do that with my home equipment. Doing that in LAVA would be ideal, and I know the Android team does it already, but our constraints could be a little different. Basically, there are two fronts: 1. Building Android components with LLVM, using a GCC-compiled kernel booting on an ARM board, in LAVA. This is something we should work internally on how to do it, and it'll be between Android, LAVA and Toolchain groups. 2. Building the Linux kernel with LLVM, and using a GCC-compiled image (like stock CyanogenMod) to test the kernel. We don't have such a kernel (many patches), but the LLVMLinux guys do, and that's where they come in. On the second case, the topic of this email, we'd have to liaise with them to fire jobs at LAVA from their own infrastructure (originally, manually only), and that might need some thinking. But ultimatelly, we want to have those jobs running on LAVA, so that later on we'd be able to have a third layer: Linux+Android built with LLVM with the same system level tests. Since the LLVMLinux guys don't have access to much ARM hardware, and since it's easier for us to scale (or to re-define) hardware requirements, having them running on LAVA makes even more sense. Is this something we can do? Is this being done already? Is this just a question of legal/corporate decision, or is there any technical issues we have to look into? Android folks, It might make more sense if you guys just grab their kernel and build the Android system based on that internally, so that we don't need external access to job submissions in LAVA, but that would mean work from you guys to patch it up, and that might not be in the roadmap for the next months. Is that a feasible route? cheers, --renato

11 years, 9 months

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[ANNOUNCE] Linaro GCC 4.7 and 4.8 2013.11 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 4.7 2013.11 is the twentieth release in the 4.7 series. Based off the latest GCC 4.7.4+svn204656 release, this is the seventh release after entering maintenance. Interesting changes include: * Updates to GCC 4.7.4+svn204656 Linaro GCC 4.8 2013.11 is the eighth release in the 4.8 series. Based off the latest GCC 4.8.2+svn204657 release, it includes performance improvements and bug fixes. Interesting changes include: * Updates to GCC 4.8.2+svn204657 * Fixes for bugs LP #1243656, #1243022 * Backport fix for PR/58423 * AArch64: added support for tiny model GOT access. * Improved Aarch32 A-profile multilibs support (--with-multilib-list option) The source tarballs are available from: http://releases.linaro.org/13.11/components/toolchain/gcc-linaro/4.7 http://releases.linaro.org/13.11/components/toolchain/gcc-linaro/4.8 Downloads are available from the Linaro GCC page on Launchpad: http://www.linaro.org/downloads/ More information on the features and issues are available from the release pages: https://launchpad.net/gcc-linaro/4.7/4.7-2013.11 https://launchpad.net/gcc-linaro/4.8/4.8-2013.11 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

11 years, 9 months

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[Activity] Nov 10-16

by Rob Savoye

= Progress == * Created Cards for the infrastructure Team TODO list. * Finished Cbuildv2 support for building GDB binary tarballs. * Got Arch linux up on Odroid XU board again, seems stable, did a build and test run. * Experimented with lava-tool. * Tried to get GCC trunk building native on aarch64 for libsanitizer patch testing. * Upgraded gmp to 5.1.3 in infrastructure/ to work around a configure bug triggered by crouton native builds on a chromebook. * Setup chromebook slaves in new toolchain build farm. * Started adding support to Cbuildv2 to handle git URLs with a user name, ie.. git(a)staging.git.linaro.org to work around git repo problem. == Plan == * Finish support for user names in URLs. * Continue on remote testing support. * Keep trying gcc trunk on aarch64 native. * Fix git repo. == Issues == * GCC git repo hasn't been auto updating the svn branch of linaro-4.8-branch. It used to work... updating manually is now broken as well. * Somehow qemu snapshots tarballs are overwriting the toolchain directories on snapshots.linaro.org. * I don't think lava-tool is going to be useable for toolchain testing, as it only queues up an executable test case to be run later, whereas GCC expects the test to get run right away.

11 years, 9 months

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[ACTIVITY] 12-15 November 2013

by Christophe Lyon

One day off == Progress == * Prepared 4.7 and 4.8 2013.11 releases. Some delay because of board crashes and disk full issues. * Aarch64: committed 'frame grows downward' patch. This removes a dependency for libsanitizer and libssp. * libsanitizer on Aarch64: blocked by GCC trunk not bootstrapping currently on Aarch64 HW (reported by Rob) * Looked at cross-build failures of trunk after new -fisolate-erroneous-paths. Ramana pointed me to Marcus' glibc patch, and I could switch my builds from eglibc to glibc. * cross-validations: updated list of configurations built&tested after discussion with Richard during Connect. == Next == * Announce 4.7 and 4.8 2013.11 releases * Continue investigating 'extended neg' fix (aka tar regression) * Look for patches to fix AArch64 bootstrap, so that we can test libsanitizer

11 years, 10 months

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[ACTIVITY] Week 46

by Yvan Roux

One day off. == Issues == * Various cbuild issues: - disk full, boards down and benchmarks launched on different boards == Progress == * LRA on AArch32: - Proposed a ARM backend fix for the Fortran issue http://gcc.gnu.org/ml/gcc-patches/2013-11/msg01997.html - Performance analysis ongoing * Merge reviews and backports. == Next == * Continue on LRA

11 years, 10 months

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[ACTIVITY] 11 - 15 November 2013

by Omair Javaid

== Progress == * Wrote ARM and Thumb stub handlers for simd, vfp and coprocessor instruction recording. * Read documentation on VFP and Neon register set to figure out a register recording method. * Follow up on upstream patches. * Investigating a un-handled instruction test suite failure in arm process record. * 9th/10th Muharram Public holiday on Thursday and Friday. == Plan == * Fix failures in arm process record due to un-handled instruction. * Get started on writing handlers for coproc, vfp and simd instructions.

11 years, 10 months

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[ACTIVITY] Week 46

by Zhenqiang Chen

== Issues == * None. == Progress == * One day (Nov. 15) off. * Misc update for Linaro crosstool-ng - Use newlib-linaro-2.0.0-2013.11-1. - Update fortran support related scripts and configs according to Matt's comments. * Propose to support S2_<op1>_<Cn>_<Cm>_<op2> system register in AARCH64 GAS. - Yufeng followed-up it and added full TRACE registers support. * Investigate heuristic to tune ifcombine (TCWG-313) - Got some new fails in regression tests since some optimizations can not get the expected result. - Collect Spec2k INT result. Overall there is no changes. But there are -2 - 1% changes for several cases. - PGO tests are ongoing. == Plans == * Continue on CCMP. * Continue on ifcombine tuning.

11 years, 10 months

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[ACTIVITY] Week 46

by Renato Golin

== Progress == * Preparing presentation on auto-vec for LLVM - For Cambridge LLVM Day next Monday - If accepted, also for FOSDEM 14 * Tracing strided access changes needed in auto-vec (PR17677) - Reading the paper, preparing a reference implementation - Discussing details and preparing the LLVM code to introduce it - After a few attempts, it's clear that the code is not yet ready to cope with the changes - I'll have to work on the surrounding code to re-factor it for more robust integration - As well as triming some other edges (like pragmas) to help implement it * Planning Android builds - Trying to get a reference platform (most likely the new Arndale) - LLVMLinux folks will help streamlining a kernel package for it * Connect reservations, booking flight, etc. - All done! == Plan == * Monday at Cambridge LLVM Day at CUCL * 3.4 Release testing * Looking at vectorization pragmas and general structure of the memory dependency checks

11 years, 10 months

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[ACTIVITY] Week 46

by Will Newton

== Progress == * Fix ld testsuite on mainlne * More malloc debugging and refactoring * glibc patch review * Investigate gdb hardware breakpoint issues == Issues == * Didn't get much done on Friday due to sick baby == Plan == * malloc * Follow up glibc docs patches * Further investigate gdb hardware breakpoint issue -- Will Newton Toolchain Working Group, Linaro

11 years, 10 months

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[ACTIVITY] November 6-8 2013

by Christophe Lyon

Short week: 2 days off after Connect. == Progress == * LP 1243656: reverted commit which causes a regression in GNU tar's tests. * Committed Kugan and Zhenqiang's backports to our branch * Status on backports: ILP32 support missing from binutils is blocking quite a few GCC backports (because of dependencies between commits) * Some problems building trunk since Nov 5th (failures in eglibc) == Next == * Make 2013.11 releases * Continue working on GNU tar problem: find a proper fix. * Commit 'aarch64 frame grows downward' patch if Richard approves it. * Check status of aarch64 lib sanitizer branch if Rob manages to have it build & execute tests * Check Neon intrinsics testsuite status with Rob

11 years, 10 months

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[ACTIVITY] Week 45

by Yvan Roux

2 post-connect days off. == Issues == * None. == Progress == * LRA on AArch32: - Analyzed testsuite results with last upstream LRA patches. - One remaining regression observed on Fortran. Reported it upstream. - Submitted a fix for the Thumb bootstrap issue http://gcc.gnu.org/ml/gcc-patches/2013-11/msg00776.html - Launched benchmarks for performance analysis * Merge reviews. * Misc: - Internal post-connect feedback meeting. == Next == * LRA : - Look at Steven Bosscher fix http://gcc.gnu.org/ml/gcc-patches/2013-11/msg01029.html - Performance analysis * Backports

11 years, 10 months

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[ACTIVITY] Week 45 - Nov 4 - Nov 8

by Ryan Arnold

== Progress == * Monday off for recovery from Connect. * Created git_revisions branch for refactoring * Added verified and correct --help and --usage text. * Error check for spurios '=' after --<switch> * Add toplevel test.sh for testing cbuild2.sh commands * Fix get_URL and checkout to support git revisions. * Improve dryrun to prevent grepping missing files. * Added glibc support to cbuild2. * Cleaned up merged cbuildv2 remote development branches * Started cbuild2 bisect. == Plan == * Merge glibc support upstream == Issues == * None

11 years, 10 months

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[ACTIVITY] 4 - 8 November 2013

by Omair Javaid

== Progress == * Monday and Tuesday off for Jetlag recovery. * Arm process record: - Updated Patches for all fixes and features. - Performed testing in arm native and remote configuration. - Performed regression testing on arm and x86. - Submitted all new patches after updates. * Started gdb.reverse test suite failure investigation and open new Jira issues accordingly. * Started work co-processor instructions decoding for arm process record. == Plan == * Continue work on co-processor instruction decoding for arm process record. * Respond to upstream suggestions on patches sent previously.

11 years, 10 months

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[ACTIVITY] Week 45

by Zhenqiang Chen

== Issues == * Binaries build FAIL in cbuild, but OK in local build. == Progress == * Misc update for Linaro crosstool-ng - Update newlib to 2013.11. - Modify scripts to meet the check of A-profile multilib support. - Add fortran/libfortran support for bare metal build. - Fix multi-lib conflict issue in local patch - A refer A-profile bare metal build is shared at http://cbuild.validation.linaro.org/snapshots/gcc-linaro-arm-none-eabi-4.8-… * Update conditional compare patch according to comments. * Investigate heuristic to tune ifcombine (TCWG-313). == Plan == * Fix the binaries build FAIL issues. * Continue on CCMP. * Continue on ifcombine tuning. == Planed leaves == * Nov. 15 - 16: Team event and HelloGCC in Beijing.

11 years, 10 months

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[ACTIVITY] 4 November - 8 November 2013

by Kugan

== Progress == - Looked into Cbuild2 and current benchmarking scripts - Talked to Rob to understand the requirements and plan for next 2 weeks - Backported gcc testcase fix that causes regression in Linaro 4.8 for armv5te. == Plan == - Taking leave next week. - Start with benchmarking scripts after that

11 years, 10 months

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[ACTIVITY] 4 November - 8 November 2013

by Venkataramanan Kumar

Worked from AMD Austin. == Progress == * TLS based libssp support. Solved segmentation faults in clone and fork tests regressing from the patch I wrote. Ran glibc tests. Two tests still fail, tst-cancel-17.c and tst-memqueue8.c. They both use pthread_cancel and with my patch they time out. Debugging it to find the cause. Informed Maintainer about my status and got some advice to debug. == Plan == * Taking vacation next week. * But will continue send out gcc patch for libssp. * reinstall ubuntu on my laptop

11 years, 10 months

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[Activity] Nov 2-10

by Rob Savoye

== Progress == * Enabled building GDB in all Cbuildv2 builds for --build all. * Added support for Cbuildv2 to to build GDB source tarball. * Got Canadian Crosses building via Cbuildv2, although I have to apply a one line patch, which I was trying to avoid. * Enabled Canadian Cross builds via Jenkins. * Source and binary snapshots builds via Jenkins now getting copied to snapshots.linaro.org. * Got started migrating Christophe's neon intrinsic test cases to GCC testsuite. * Added DejaGnu 'linaro' branch to Cbuildv2 infrastructure so the new baseboard files are available for Jenkins builds. * Applied Christophe's libsanitizer patch on aarch64 APM board and tried to get GCC to compile. Unsuccessful so far. * Installed crouton 'saucy' on new HP Chromebook 11. * Installed Fedora 19 on Samsung Chromebook. * Started adding support to Cbuildv2 for building LLVM and Clang and other components. I wish they all used autotools. :-) * Got Gerrit working for GCC and Cbuildv2. The LAVA team has been very helpful, but the setup docs miss way too many critical details. == Plan == * Figure out how to gpg sign the tarballs cbuildv2 is producing in a secure manner. * Finish adding support for building GDB binary tarballs. * More work on neon intrinsics test cases. * Work with new team member Mike to help him get up to speed on all things Linaro. * Try to get GCC trunk to build on aarch64. * Off to the "Hacker's Conference" out here in Santa Cruz, back home late Monday night. == Issues == * Eglibc defines caddr_t as a typedef, where auto-host for a Canadian Cross defines caddr_t, so stage2 fails to build. * Sucked up all the disk space in the toolchain_cloud instance, so all Jenkins builds are not working. * We'd like to rename Cbuildv2 to something else, suggestions welcome. :-)

11 years, 10 months

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[ACTIVITY] Week 45

by Renato Golin

== Progress == * LLVM Dev. Meeting 2013 * Meetings with Google, Qualcomm and ARM about Android and LLVM * We're creating a task force to move Android to be compiled with Clang by default, kernel, libraries, userland, native apps, Renderscript. * Agreed on some actions for public benchmarking - Hal will move tests to benchmarks by hand - Linaro will create bots on that sub-set == Plan == * Recuperate * Work on the stride vectorizer * Create benchmark bots * Start a TableGen doc seed, so experts can chime in * Prepare something for the CUCL LLVM Day on the 18th

11 years, 10 months

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[ACTIVITY] Week 45

by Will Newton

== Progress == * Monday recovering from Connect travel * Release Linaro newlib 2.0.0 2013.11 * Committed a number of gdb patches to fix bugzilla issues * Submitted patches for glibc memory manual improvements * Read a couple more papers on malloc == Issues == * None == Plan == * Finish off glibc memory manual and aligned_alloc patches * malloc -- Will Newton Toolchain Working Group, Linaro

11 years, 10 months

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[ANNOUNCE] Linaro newlib 2.0.0 2013.11 released

by Will Newton

### About Linaro newlib Linaro newlib is a release of the newlib C library with bug fixes and enhancements for ARM platforms. newlib is a small footprint C library designed for embedded systems. ### Linaro newlib 2.0.0 2013.11 The Linaro Toolchain Working Group is pleased to announce the 2013.11 release of Linaro newlib 2.0.0, the second release in the 2.0.0 series. This release is based on the latest upstream newlib trunk, but with additional features and bug fixes. #### Additional Features * Resync with upstream newlib trunk * Improved support for Cortex-A and AArch64 baremetal systems #### Bug Fixes * None ### Source #### Release Tarball * https://releases.linaro.org/13.11/components/toolchain/newlib-linaro #### Development Tree * git://git.linaro.org/toolchain/newlib.git This release was built from the `linaro_newlib-2_0_0-2013_11_release` tag. ### Feedback and Support Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development. * Linaro Toolchain Development [mailing list](http://lists.linaro.org/mailman/listinfo/linaro-toolchain) * Linaro Toolchain IRC channel on irc.freenode.net at `#linaro-tcwg` * Questions? [ask Linaro](http://ask.linaro.org/). * Interested in commercial support? inquire at [Linaro support](mailto:support@linaro.org) -- Will Newton Toolchain Working Group, Linaro

11 years, 10 months

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[ANNOUNCE] Linaro Toolchain Binaries 2011.10 released

by Bernhard Rosenkränzer

The Linaro Toolchain and Builds and Baselines Working Groups are pleased to announce the 2013.10 release of the Linaro Toolchain Binaries, a pre-built version of Linaro GCC and Linaro GDB that runs on generic Linux or Windows and targets the glibc Linaro Evaluation Build. Uses include: * Cross compiling ARM applications from your laptop * Remote debugging * Build the Linux kernel for your board What's included: * Linaro GCC 4.8 2013.10 * Linaro GDB 7.6.1 2013.10 * A statically linked gdbserver * A system root * Manuals under share/doc/ The system root contains the basic header files and libraries to link your programs against. Interesting changes include: * The sample configurations no longer require the LSB tools * The build now works behind a HTTP proxy The Linux version is supported on Ubuntu 10.04.3 and 12.04, Debian 6.0.2, Fedora 16, openSUSE 12.1, Red Hat Enterprise Linux Workstation 5.7 and later, and should run on any Linux Standard Base 3.0 compatible distribution. Please see the README about running on x86_64 hosts. The Windows version is supported on Windows XP Pro SP3, Windows Vista Business SP2, and Windows 7 Pro SP1. The binaries and build scripts are available from: https://releases.linaro.org/13.10/components/toolchain/binaries/ Need help? Ask a question on https://ask.linaro.org/ Already on Launchpad? Submit a bug at https://bugs.launchpad.net/linaro-toolchain-binaries On IRC? See us on #linaro on Freenode. Other ways that you can contact us or get involved are listed at https://wiki.linaro.org/GettingInvolved.

11 years, 10 months

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[ACTIVITY] Week 44

by Zhenqiang Chen

== Issues == * None == Progress == * Commit the fix for lp:1243022 on trunk. * Backporting r203603, r204247 and r203267 to Linaro gcc 4.8. * Updating CCMP patch according to comments. * Collect spec2K result for CCMP. - Overall there is no regression and no improvement. - 175.vpr is sensitive to branch cost. Smaller branch cost will lead to regression for it even with CCMP. * Investigate bare metal arm-none-eabi A profile multilib build. - Need fix the conflict with current multilib support for arm-linux-gnueabihf - Need scripts and config update to meet the check of --with-multilib-list=aprofile - A reference build is shared at http://cbuild.validation.linaro.org/snapshots/aprofile-baremetal.tar.bz2 == Plan == * Continue on CCMP. * Update Linaro crosstool-ng for bare metal A profile multilib build.

11 years, 10 months

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[ACTIVITY] 21 - 25 October 2013

by Omair Javaid

== Progress == (TCWG-266), (TCWG-270), (TCWG-250), (TCWG-280) and (TCWG-288) * Arm process record: - Created Patches for all fixes and features. - Performed testing in arm native and remote configuration. - Performed regression testing on arm and x86. - Submitted all fixes in three patch series. * Performed GDB testsuite run on arm and x86 to get current status with new patches. There seems to be more test passing on arm than x86 with recent patches. * Prepare for connect and travel to Santa Clara. == Plan == * Linaro Connect US 2013

11 years, 10 months

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[Activity] Oct 20-26

by Rob Savoye

== Progress == * Got Odroid XU board stable by using Arch Linux. None of the Ubuntu derived images worked more than barely. Tried a suggested hack to use cpufreq-set -g performance, which allowed a fresh install of saucy to work. Did new builds and test run. * Got remote toolchain testing working on the newly functioning Odroid board(s) and chromebook. Currently baseboard support is in a DejaGnu branch, http://git.savannah.gnu.org/cgit/dejagnu.git/?h=linaro. I'm adding the global site.exp file to Cbuildv2, so 'make check' executes tests via ssh on remote targets. * Uploaded test results of ARM native builds to cbuild.validation.linaro.org for tcwg-web. (look for version gcc-linaro-4.8-2013.10.24) * Added support to DejaGnu to use a custom port for ssh and scp. * Survived learning to use Concur for expense reports. == Plan == * Attend Connect, do presentation, go to others. * Try to work around problem with importing test results. (need to work with LAVA team for this one, will do at Connect) * Copy tarballs to snapshots.linaro.org. (need to work with LAVA team for this one, will do at Connect) == Issues == * I see to be having random stability issues with the two Odroid boards, although did manage to complete a test run of a the execute tests.

11 years, 10 months

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[ACTIVITY] Week 43 : Oct 21 - Oct 25

by Ryan Arnold

== Progress == * [PATCH][Cbuildv2/symlinks] lib/fetch.sh: Move tar unpacking to before symlink creation. * cbuild2/glibc branch - Uploaded alpha glibc support in cbuild2 (which required pretty signifcant refactoring). * Improving bounds checking of cbuild2 command line arguments == Issues == * None == Plan == * Harden cbuild2 command line support * Finish documentation/usage for cbuild2 * Integrate glibc enablement into cbuild2 master branch

11 years, 10 months

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[ACTIVITY] Week 43

by Will Newton

== Progress == * Ongoing refactoring of malloc to improve performance * Preparation for Connect == Issues == * None == Plan == * Linaro Connect US -- Will Newton Toolchain Working Group, Linaro

11 years, 10 months

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[ACTIVITY] Week 43

by Renato Golin

== Progress == * Getting ready for Connect & LLVM US * Stride Vectorization - Added some logic to detect read/write reduction, possibly not the best solution - Consolidating all discussion into a single document for easy referral - Creating several bugs (PR17673,PR17677,PR17678,PR17679,PR17680,PR17681) * Re-Vectorizing - A bug was passing the vectorizer again on an already vectorized loop (PR17662) - http://llvm-reviews.chandlerc.com/D2011, commit r193349 * Odroid XU - Running more stable now, self-hosting doing well (more than a week on 24/7) * Background - Lots of patch reviews - Lots of discussions about stride vectorization and others == Plan == * Connect US next week * US LLVM Dev Meeting the following * Will be back in 2 weeks

11 years, 10 months

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[ACTIVITY] Week 43

by Zhenqiang Chen

== Issue == * Can not attend LCU'13 due to slow US Visa process. == Progress == * Investigate lp:1243022: - Root cause: REG_INC note is lost in subreg2 pass, so ira gets wrong result in function validate_equiv_mem. - Work out a patch for community review. * Send conditional compare (CCMP) patch for community review. - Benchmark testing is ongoing. * Investigate heuristics to control ifcombine. Basically it will take branch taken probability, frequency, branch-cost and basic block reorder into account. == Plan == * Performance tuning for CCMP.

11 years, 10 months

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[ACTIVITY] Week 42

by Yvan Roux

== Issues == * None. == Progress == * 2013-10 release. - Backports and branch merges reviews. * LRA on AArch32: - Committed patch to enable LRA with the -mlra flag (disabled by default). - Created 2 bugzilla entries for Thumb and address issues. - Thumb issue work still ongoing. * Launchpad bugs: - Cleaned up a couple of them. * Misc: - Internal meetings. == Next == * Short week (2 days off and 1 travelling) * LRA

11 years, 10 months

1
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u-boot build problems VFP vs. soft-float

by Chris Ruehl

Hi, may you think I'm on the wrong list, no not :-) I currently build my u-boot loader using the linaro tool chain 2013.09 and run into a problem with the support for JFFS2 where the linker report VFP usage where u-boot using softfp for build. compiler options: -ffixed-r9 -msoft-float arm-linux-gnueabihf-ld.bfd: error: /opt/armhf/gcc-linaro-arm-linux-gnueabihf-4.8-2013.09_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/libgcc.a(bpabi.o) uses VFP register arguments, u-boot does not when I use make USE_PRIVATE_LIBGCC=yes the problem shows up at an undefined reference fs/jffs2/libjffs2.o: In function `jffs2_1pass_build_lists': /opt/cross_build/uboot.d/u-boot-git/fs/jffs2/jffs2_1pass.c:1441: undefined reference to `__aeabi_uldivmod' arm-linux-gnueabihf-ld.bfd: BFD (crosstool-NG linaro-1.13.1-4.8-2013.09 - Linaro GCC 2013.09) 2.23.2.20130610 Linaro 2013.06 assertion fail /cbuild/slaves/oorts/crosstool-ng/builds/arm-linux-gnueabihf-linux/.build/src/binutils-linaro-2.23.2-2013.06/bfd/elf32-arm.c:7687 may someone have a closer look into it? thanks Chris

11 years, 10 months

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BE kernel / GCC-4.8 (Was run BE in lava)

by Fathi Boudra

Hi, On 4 October 2013 19:01, Maxim Uvarov <maxim.uvarov(a)linaro.org> wrote: > On 10/04/2013 07:40 PM, Victor Kamensky wrote: >> >> Hi Maxim, >> >> readl and writel are stronger version of readl_realxed and >> writel_relaxed: >> >> #define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(); __v; }) >> #define writel(v,c) ({ __iowmb(); writel_relaxed(v,c); }) >> >> They just add __iormb and __iowmb, I think it is very >> dangerous thing to drop those memory barriers. I don't >> think your change is correct and/or it requires way >> better explanation. >> >> I've run into the same crash while working on 3.12-rc3 BE >> issues. In fact I saw this failure on both BE and LE and on >> old versions of BE kernels when I tried to use 4.8 gcc version >> from 13.09 release. When I fall back to 4.7 (i.e 13.04) it >> works fine >> >> I would think it is compiler issue or preexisting issue >> in the code uncovered by compiler change. Personally >> I think it is the first. Since I am chasing another problem >> I did not have time to look more deeply into the issue. >> IMHO it definitely require more digging. In mean time you >> can quickly check your current version and try another one >> if your looks as one described in this email. >> >> Thanks, >> Victor > > Ah, yes, it __raw_write has direct access and writel swaps bits. > > If it's compiler issue then it has to be simple to compare objdump disasm > output for that function. I think I've hit this issue. We use latest Linaro GCC 4.8 in the CI loop to build Arndale BE kernel. Is there a bug reported to TCWG? If not, please create one: https://bugs.launchpad.net/gcc-linaro/+filebug FYI, I'm using Linaro GCC 4.8-2013.09 (pre-built) and latest linaro-linaro (based on 3.12-rc5 with Victor's topic branch). Boot log attached. Cheers, Fathi

11 years, 10 months

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[PATCH] libatomic is now supported on AArch64

by Michael Hudson-Doyle

--- Hi, Can you review this patch for me and help me get it upstream? This is an official request for help from LEG to the TCWG, if that matters :-) 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

11 years, 10 months

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[ACTIVITY] 14-18 October 2013

by Christophe Lyon

== Progress == * Releases 4.7 and 4.8 2013.10 * Tried cbuildv2: difficult because of our company proxy, making some changes necessary to cbuildv2. Tutorial sessions in Connect will be welcome. * Started chasing a regression in armv5 targets, handed over to Kugan. * Noticed regressions in some cases with Charles' testsuite patch. == Next == Short week: Monday/Tuesday off; Friday: travelling to Connect * Look at trunks' new vectorizer cost model. * Prepare Connect

11 years, 10 months

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[ACTIVITY] 14 - 18 October 2013

by Omair Javaid

== Progress == * Short week Hujj and Eid-Al-Adha Public Holidays in Pakistan 15-17 October 2013. (TCWG-280) ARM GDB Process Record Syscall support: * Performed testing with all fixes incorporated and debugged failures in remote configuration. == Plan == (TCWG-266), (TCWG-270), (TCWG-250), (TCWG-280) and (TCWG-288) * Arm process record: Submit all fixes and updates in three patches. * Prepare for connect and travel to Santa Clara.

11 years, 10 months

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[ACTIVITY] 14 October - 18 October 2013

by Venkataramanan Kumar

Very short week was on leave 14th and 16th October (India Holidays). == Progress == * libssp glibc Glibc tests are Segmenting at dl_close_worker, when I set pointer guard. Debuging shows segfaults while expanding THREAD_GSCOPE_WAIT. My assumption is thread pointer points to TCB and after allocating 16 Bytes before that, we can set pointer gaurd at tp -16. But not sure, why it affects the pthread structure header which holds gscope_flag. Also looked at TLS_MULTIPLE_THREADS_IN_TCB, enabling it lead to __libc_multiple_threads undefined errors. == Plan == * Continue libssp support. * PGO for aarch64

11 years, 10 months

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[ACTIVITY] Oct 14-18

by Kugan

== Progress == * 64bit division for targets without 32bit div instructions - Finished the implementation - Benchmarked it - Getting ready to post RFC patch * Connect Slides - Worked on slides for connect * Vector regression in 4.8-2013.09 - Started bisecting to find the issue == Plan == * post RFC patch for 64bit division * Vector regression in 4.8-2013.09 * Connect preparation

11 years, 10 months

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[Activity] Oct 14-20

by Rob Savoye

== Progress == * Improved the format of the emails that get sent to the cbuildv2 list from commits. * Get Odroid U2 running stably, did native build on an external USB disk. Upgraded to saucy. Did full toolchain build and test run. 65 minutes per build. * Got Odroid XU board to boot, then upgraded to saucy, not very stable yet. Unlike the XU, it has a horrible lag when typing to it via ssh. * Updated chromebook to saucy, did native build and test run on external USB drive. The U2 was faster, even with an older USB 2 only drive. 192 minutes for a build. * Worked at verifying Cbuildv2 produced tarballs again since there have been many little tweaks. The few differences between Cbuildv2 produced tarballs and the official Linaro releases is documentation related. For example, Cbuildv2 doesn't build the java docs. * Did slides for Connect presentation. * Sat bagged an 900 foot ice route at over 13,000 feet. 8 mile approach. == Plan == * Try to work around problem with importing test results. (need to work with LAVA team for this one) * Copy tarballs to snapshots.linaro.org. (need to work with LAVA team for this one) * Get remote toolchain testing working on the newly functioning Odroid board(s). * Continued improvements to Cbuildv2. == Issues == * My network and landline was down to upstream repairs for a day and a half, bad timing during release week... :-(

11 years, 10 months

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Re: Sysroot of linaro linux-gnueabi toolchain

by Michael Hope

Hi Bharath. Have a look under contrib/linaro/sysroot - there's a script in there that you can fiddle with to pick a later distro. -- Michael On 16 October 2013 17:52, bhs <bharath.vegito(a)gmail.com> wrote: > Hi Michael, > > I see that linaro's build system is using pre-built sysroot as an input > to build cross-toolchain for ARM. I have a use case were we want > eglibc-2.17(sysroot from raring) along with gcc-4.7.3 crosstoolchain. I > could not any reference to the method in README file. > > How is the precise-sysroot used in building linaro toolchain binaries > created? > Thanks > Bharath > -- > This message was sent from Launchpad by > bhs (https://launchpad.net/~bharath-vegito) > using the "Contact this user" link on your profile page > (https://launchpad.net/~michaelh1). > For more information see > https://help.launchpad.net/YourAccount/ContactingPeople

11 years, 10 months

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[ACTIVITY] Week 40 : Oct 14 - Oct 18 <REDO>

by Ryan Arnold

I accidentally sent without completing my 'Progress' section. == Progress == eglibc -> glibc transition: * Investigated upstream plan to retire eglibc and the implication of losing options groups. Cbuildv2 - Random patches * [PATCH][Cbuildv2/get_source 17/17] lib/common.sh: get_source - Fix for partial match in snapshots with <package>.conf:latest set. * [PATCH][Cbuildv2/get_source 16/17] testsuite/test.sh: Add get_URL test for <repo>.git@revision. * [PATCH][Cbuildv2/get_source 15/17] lib/common.sh: Fix so that get_URL works for <repo>.git@revision. * [PATCH][Cbuildv2/get_source 14/17] testsuite:test_sources.conf|test.sh: reserve nomatch.git for testing. * [PATCH][Cbuildv2/get_source 13/17] testsuite/test.sh: Add tests for user git repos not ending in .git. * [PATCH][Cbuildv2/get_source 12/17] [test_]sources.conf: Unify behind <label>.git identifiers for all git repos. * [PATCH][Cbuildb2/get_source 11/17] New variable ${sources_conf} to replace hardcoded config/sources.conf. * [PATCH][Cbuildv2/get_source 10/17] testsuite/test.sh: Add test for tag matching an svn repo in sources.conf. * [PATCH][Cbuildv2/get_source 09/17] lib/common.sh: echo ${url} in leg that processes direct non .git repositories. * [PATCH][Cbuildv2/get_source 08/17] lib/common.sh: Fix for unknown/unmatched get_source request. * [PATCH][Cbuildv2/get_source 07/17] lib/common.sh: echo ${url} in get_source when finding a successful snapshot match. * [PATCH][Cbuildv2/get_source 06/17] lib/common.sh: find_snapshot should return list of found snapshots even on error. * [PATCH][Cbuildv2/get_source 05/17] lib/common.sh: Invoke find_snapshot as a subshell in get_source. * [PATCH][Cbuildv2/get_source 04/17] lib/common.sh: Suppress extraneous trailing whitespace in get_URL and get_source output. * [PATCH][Cbuildv2/get_source 03/17] testsuite/test.sh: Suppress stderr noise and add new failing get_source tests. * [PATCH][Cbuildv2/get_source 02/17] lib/checkout.sh: checkout should use get_srcdir to reuse code. * [PATCH][Cbuilv2/get_source 01/17] lib/make.sh: Don't continue with build if source isn't found. * [PATCH][Cbuildv2/get_source 00/17] Patchset to exhaustively test get_source code legs and fix corner cases. * [PATCH] cbuild2/lib/common.sh: redirect trace/error/warning, etc. to stderr. * [PATCH] cbuild/lib/configure.sh: Fix stamp-configure* to prevent spurious configure running. * [COMMITTED][PATCH] cbuild/lib/make.sh: Add ${builddir}/install.log from make install output. * [COMMITTED][PATCH] lib/common.sh (list_URL): correct bash keyword "locals" -> "local". * [COMMITTED][PATCH] config/gcc.conf: Add --disable-shared to stage 1 default_configure_flags. * [PATCH][test_fetch_md5sums_fix] testsuite/test.sh: Add second fetch md5sums test and always use wget -q in testsuite. * [PATCH][test_fetch_md5sums_fix] testsuite/test.sh: Always override ${local_snapshots} for tests. == Issues == * None == Plan == Objective before Linaro Connect: * Wiki/README on using cbuildv2 sources.conf and <package>.conf:latest= * git workflow document: collaborative use of git in Linaro * wiki/README on using cbuildv2 local_snapshots for specific/non-remote archives or git repositories. General Cbuildv2: * Audit usage of "local foo=`bar`; if test $?". Change to: "local foo; foo=`bar`; if test $?". - This is a known issue and very nefarious. * Investigate dryrun to use stderr 2>&1? * Port get_URL, get_source, and find_snapshot to unique behind <repo>/<branch>@<revision> return type. * Test local_snapshot overrides

11 years, 11 months

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[ACTIVITY] Week 40 : Oct 14 - Oct 18

by Ryan Arnold

== Progress == eglibc -> glibc transition: * Investigated upstream plan to retire eglibc and the implication of losing options groups. Cbuildv2 * [PATCH][test_fetch_md5sums_fix] testsuite/test.sh: Always override ${local_snapshots} for tests. [PATCH][test_fetch_md5sums_fix] testsuite/test.sh: Add second fetch md5sums test and always use wget -q in testsuite. == Issues == * None == Plan == Objective before Linaro Connect: * Wiki/README on using cbuildv2 sources.conf and <package>.conf:latest= * git workflow document: collaborative use of git in Linaro * wiki/README on using cbuildv2 local_snapshots for specific/non-remote archives or git repositories. General Cbuildv2: * Audit usage of "local foo=`bar`; if test $?". Change to: "local foo; foo=`bar`; if test $?". - This is a known issue and very nefarious. * Investigate dryrun to use stderr 2>&1? * Port get_URL, get_source, and find_snapshot to unique behind <repo>/<branch>@<revision> return type. * Test local_snapshot overrides

11 years, 11 months

1
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[question]multi-arch support for arm and arm64

by Zhou Zhu

Hi, We are working on userspace aarch64 and aarch32 apps and we are trying to run 32/64 mode app simultaneously. Is there any multi-arch support for mixed rootfs (has linkers/libs of both arm and arm64)? -- Thanks, -Zhou

11 years, 11 months

5
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[ACTIVITY] Week 42

by Will Newton

== Progress == * Relased gdb 7.6.1 2013.10 * Respin of qemu VSEL patches * Bug fixing and performance measurement on malloc == Issues == * None == Plan == * Refactor malloc to improve performance * Prepare for Connect -- Will Newton Toolchain Working Group, Linaro

11 years, 11 months

1
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[ACTIVITY] report week 42

by Peter Maydell

Progress: * back from sabbatical! * caught up on admin, email, etc * code review: Christoffer's GIC related patches; VSEL support in 32 bit v8; support for VBAR; integrator bugfixes; others * working on a pullreq for ARM stuff to go into QEMU 1.7 (we're now in softfreeze) Plans: * attend KVM Forum, Connect * review the SuSE aarch64-linux-user patches -- PMM

11 years, 11 months

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[ACTIVITY] Week 42

by Zhenqiang Chen

== Issues == * None == Progress == * Prepare Linaro toolchain binaries 2013.10 release - Update EGLIBC version to 2013.10 and enable-profile for AARCH64. - Generate Linaro prebuilt sysroot for arm-linux-gnueabihf. * Commit patch to Reassociate X == CST1 || X == CST2 if popcount (CST2 - CST1) == 1 into ((X - CST1) & ~(CST2 - CST1)) == 0 * Send ifcombine patch (to generate more conditional compare) for review. * Root cause pr58775. * Test conditional compare changes. - Bootstrap and no make check regression on THUMB mode. - ARM mode test is ongoing. == Plan == * Send out the CCMP patch for review.

11 years, 11 months

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[ACTIVITY] Week 42

by Renato Golin

== Issues == * Short week - school closed on Thursday - holiday Friday - several visits to the dentist - feeling poorly, I think I have shellfish allergy == Progress == * EEMBC - Identified the problem on test not vectorizing - Some ways to fix it: SLP, stride-access, unrolling - Started implementation of GEP-PHI detection for reduction variables * Odroid XU - Bot died after a few hours, not really stable - Trying again, at home, both odroids in parallel, they seem ok * Background - General reviews, etc.

11 years, 11 months

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[ANNOUNCE] Linaro GCC 4.8 and 4.7 2013.10 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 4.7 2013.10 is the nineteenth release in the 4.7 series. Based off the latest GCC 4.7.4+svn203509 release, this is the sixth release after entering maintenance. Interesting changes include: * Updates to GCC 4.7.4+svn203509 * Fix for LP #1229170 Linaro GCC 4.8 2013.10 is the seventh release in the 4.8 series. Based off the latest GCC 4.8.1+svn203510 release, it includes performance improvements and bug fixes. Interesting changes include: * Updates to GCC 4.8.1+svn203510 * Improved AArch64 support (CRC extension, improved intrinsics, gprof support) * Improved Aarch32 support (bug fixes, better code generation, improved multilib) * Backports for bug fixes (PR58578 We are aware that FSF GCC 4.8.2 was released earlier this week. However, this release happened too late in our cycle for us to use it as the basis for Linaro GCC 4.8 2013.10. The only functional difference contained in FSF GCC 4.8.2 that is not in Linaro GCC 4.8 2013.10 is a correction to a x86 test case. The source tarballs are available from: https://launchpad.net/gcc-linaro/+milestone/4.7-2013.10 https://launchpad.net/gcc-linaro/+milestone/4.8-2013.10 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/4.7/4.7-2013.10 https://launchpad.net/gcc-linaro/4.8/4.8-2013.10 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

11 years, 11 months

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[ANNOUNCE] Linaro binutils 2.23.2 2013.10-4 released

by Will Newton

### About Linaro binutils Linaro binutils is a release of the GNU binutils with bug fixes and enhancements for ARM platforms. GNU binutils is a collection of tools including the `ld` linker and `as` assembler. ### Linaro binutils 2.23.2 2013.10-4 The Linaro Toolchain Working Group is pleased to announce the 2013.10-4 release of Linaro binutils 2.23.2, the third release in the 2.23 series. This release is based on the latest GNU binutils 2.23 stable branch, but with additional features and bug fixes. #### Additional Features * AArch64 GC sections support * Support passing -mcpu=cortex-a53 and -mcpu=cortex-a57 to AArch64 gas * Support passing -mcpu=cortex-a53 and -mcpu=cortex-a57 to ARM gas * Support passing -mcpu=cortex-a12 to ARM gas * Support AArch64 CRC instructions * Support ARM CRC instructions #### Bug Fixes * Bug fix for AArch64 GOT layout * Fixed source tarball structure ### Source #### Release Tarball * https://releases.linaro.org/13.10/components/toolchain/binutils-linaro #### Development Tree * git://git.linaro.org/toolchain/binutils.git This release was built from the `linaro_binutils-2_23_2-2013_10-4_release` tag. ### Feedback and Support Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development. * Linaro Toolchain Development [mailing list](http://lists.linaro.org/mailman/listinfo/linaro-toolchain) * Linaro Toolchain IRC channel on irc.freenode.net at `#linaro-tcwg` * Questions? [ask Linaro](http://ask.linaro.org/). * Interested in commercial support? inquire at [Linaro support](mailto:support@linaro.org) -- Will Newton Toolchain Working Group, Linaro

11 years, 11 months

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[ANNOUNCE] Linaro eglibc 2.18 2013.10 released

by Will Newton

### About Linaro eglibc Linaro eglibc is a release of the eglibc C library with bug fixes and enhancements for ARM platforms. eglibc is a variant of the GNU libc designed to work well on embedded systems. ### Linaro eglibc 2.18 2013.10 The Linaro Toolchain Working Group is pleased to announce the 2013.10 release of Linaro eglibc 2.18, the second release in the 2.18 series. This release is based on the latest upstream eglibc 2.18 stable branch, but with additional features and bug fixes. #### Additional Features * AArch64 profiling support * Optimized strlen for ARMv6T2 * Small enhancement to memcpy performance * ARM pointer encryption support #### Bug Fixes * Fix for integer overflows in memalign/pvalloc/valloc ### Source #### Release Tarball * https://releases.linaro.org/13.10/components/toolchain/eglibc-linaro #### Development Tree * git://git.linaro.org/toolchain/eglibc.git This release was built from the `linaro_eglibc-2_18-2013_10_release` tag. ### Feedback and Support Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development. * Linaro Toolchain Development [mailing list](http://lists.linaro.org/mailman/listinfo/linaro-toolchain) * Linaro Toolchain IRC channel on irc.freenode.net at `#linaro-tcwg` * Questions? [ask Linaro](http://ask.linaro.org/). * Interested in commercial support? inquire at [Linaro support](mailto:support@linaro.org) -- Will Newton Toolchain Working Group, Linaro

11 years, 11 months

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[ACTIVITY] 7-11 October 2013

by Christophe Lyon

== Issue == * AArch64 frame grows downward: no feedback yet. == Progress == * Disable-peeling: Vectorizer cost model has been changed upstream, quick look at benchmark results show little difference between before and after the change. Need to analyze further, since I expected the regressions previously identified with my patch to appear here too. * AArch64 bootstrap failure: succesfully bootstrapped in the model. * GCC trunk validation: - improved configurability (default cpu, fpu, mode, testsuite flags are selectable) - requested feedback to build the list of desirable combinations to validate * Backports/release 2013.10 - a few more backports completed - re-trying to backport the ILP32 and refactoring series proves again to be tricky, but helped identify backports which had escaped from the list. - cbuild has disk full again * GCC Neon intrinsics testsuite: -- posted a proposition to add my executable tests to the existing framework. No feedback yet. == Next == * Make 2013.10 releases, both with the historical process and using cbuildv2, in parallel * Disable-peeling/new vectorizer cost model: analyze bench results

11 years, 11 months

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[ACTIVITY] Week 41

by Yvan Roux

== Issues == * None. == Progress == * 2013-10 release. - Backports reviews. * LRA on AArch32: - Performance analysis: Identified some regressions due to load multiple usage. - Thumb issue work ongoing. * Misc: - Internal meetings, trainings. == Next == * LRA

11 years, 11 months

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[Activity] Oct 7-13

by Rob Savoye

== Progress == * Got cbuildv2 google group setup. (https://groups.google.com/a/linaro.org/forum/#!forum/cbuildv2) * Got email notifications working for commits to cbuildv2 repository. * Continued work on release building via Cbuildv2. Source tarballs checked out OK, binaries too. Probably a few tweaks left to cover the minor differences, which are all documentation files. - Rebuild GCC dynamically so the shared libraries for libgcc and libstdc++ can go in the runtime binary tarball. - Build runtime binary tarball. - Added install script to sysroot tarball. - Make overriding the default release tag with a user supplied one work fully. * Got Odroid U2 board working again, did complete native build using cbuildv2. * Reviewed more cbuild2 patches from Ryan. * Got Jenkins building snapshot tarballs. == Plan == * Do slides for Connect presentation. * Work on duplicating the 2013.10 release via cbuildv2. * Get Odroid X2 board to boot, which it currently refuses to do. * Try to work around problem with importing test results. * Copy tarballs to snapshots.linaro.org.

11 years, 11 months

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[ACTIVITY] 8 - 11 October 2013

by Kugan

== Progress == * 4 Day week (October 7th Public Holiday) * 64bit division - Looked at libgcc division implementations - Implemented in C "Align divisor shift dividend method" for procssors without div instrusttion - gcc regression now pass with above * spec2k comparison between ARM and x86 - Continue working on slides for connect - ran benchmarks to gather required results == Plan == * Continue with spec2k comparison between ARM and x86 * Continye with 64bit division

11 years, 11 months

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[ACTIVITY] 7 - 11 October 2013

by Omair Javaid

== Progress == (TCWG-266), (TCWG-270), (TCWG-250), (TCWG-280) and (TCWG-288) * Added arm process record syscall support changes and some bug fixes. * More improvement to gdb.reverse on arm now 2214 tests are passing in native mode (144 failures left) (TCWG-267), (TCWG-268) and (TCWG-269) * No progress this week. * Received US visa from US visa passport collection center. * Booked travel for LCU13. == Plan == * Short week Hujj and Eid-Al-Adha Public Holidays in Pakistan 15-17 October 2013. (TCWG-250) * Update/test arm process record thumb32 support patch incorporating changes suggested by Will in his review. (TCWG-280) * Improve code changes and find ways to avoid hard coded constants imported from Linux Kernel.

11 years, 11 months

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[ACTIVITY] Week 40 & 41

by Zhenqiang Chen

== Issues == * Develop machine was broken. Have to resetup the system. == Progress == * Commit fix for pr58423 * Enhance Linaro crosstool-ng - Fix lp:1232678 - Get EGLIBC version from config files automatically. - Build aarch64 sysroot to support profile (https://launchpad.net/linaro-toolchain-binaries/support/01/). * Update the patch "Reassociate X == CST1 || X == CST2 if popcount (CST2 - CST1) == 1 into ((X - CST1) & ~(CST2 - CST1)) == 0" according to comments. * Continue on CCMP - Send the phiopt patch to handle CCMP for community review. Jeff will follow-up it. - Enhance ifcombine to generate more CCMP. - Handle more than 2 compares in expand. - Add new instruction patterns to generate CCMP for ARM. Test is ongoing. == Plan == * Send ifcombine patch for community review. * Continue on CCMP testing.

11 years, 11 months

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[ACTIVITY] Week 41 : Oct 7 - Oct 11

by Ryan Arnold

== Progress == * CbuildV2 Fixes to add fetch md5sums to testsuite/test.sh: - Subject: [PATCH][test_fetch_md5sums 1/2] lib/fetch.sh: Add missing ${local_snapshots} to md5sum path. - Subject: [PATCH][test_fetch_md5sums 2/2] testsuite/test.sh: Add fetch tests section. * CbuildV2 Fixes to get testsuite/test.sh working in the source directory: - Subject: [PATCH][cbuild2 1/3] testsuite/test.sh: Don't use "warning" function before it is sourced. - Subject: [PATCH][cbuild2 2/3] testsuite/test.sh: Remove redundant sourcing of host.conf. - Subject: [PATCH][cbuild2 3/3] testsuite/test.sh: Re-enable running tests from src dir. CbuildV2 random fixes: - Subject: [PATCH][cbuild2 2/4] cbuild2.sh: correct --disable "boostrap" - Subject: [PATCH][cbuild2 3/4] config/ffmpeg.conf: separate options * CbuildV2 fixes to remove ${dir}/md5sums usage (it is redunant with snapshots/md5sums). - Subject: [PATCH][cbuild2 1/4] Remove unneeded infrastructure/md5sums fragment - Subject: [PATCH][cbuild2 4/4] Remove ${dir} specific md5sums files. * Fixed error where gcc stage 2 configure returns early (erroneously) on success. - [PATCH] Only return early on error following configure * Fixed error in downloading branch named git repos in lib/checkout.sh. - [PATCH] Fix git clone to get repo without branch name as part of the url. == Issues == Contacted its@linaro requesting permission to be able to create personal branches in rsavoye’s cbuild2 git tree. They created a group for cbuildv2. Got work laptop installed (dualboot) with Fedora 19 and ran into some errors with secure boot. == Plan == * Spend some time looking at our options with regard to EGLIBC options groups when forced to move to glibc proper. *

11 years, 11 months

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[ACTIVITY] Week 41

by Will Newton

== Progress == * Backports and release for binutils 2013.10 (x4!) * Backports and release for eglibc 2013.10 * Submitted a couple more glibc memalign patches * Committed aarch64 gdb fix * Bits of malloc work in between == Issues == * None == Plan == * Try and get some uninterrupted time on malloc -- Will Newton Toolchain Working Group, Linaro

11 years, 11 months

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[ACTIVITY] Week 41

by Renato Golin

== Progress == * EEMBC - Updating Linaro image with Clang toolchain changes - Updating compare_all script to rank boards - Investigating differences in performance against GCC * ODroid XU - Setting up server image (Linaro 13.09 + odroid specific changes) - CPU scheduler is a mess, forcing "performance" governor at boot seems to work - No journal in root fs, remounts ro all the time (bad image?) - LLVM builds are slow (as fast as Chromebook), maybe it's the SDCard - Setting it as self-host buildbot in the lab, going well * Background - Massive patch review (Sub-Register Live Range Analysis for NEON/VFP et al) - LLVM Sync and EuroLLVM meetings == Plan == * Continue investigating performance problems in EEMBC * Check Odroid XU internal buildbot for stability

11 years, 11 months

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Error

by Rick

Hi Term, I have try to us "crosstool-ng-linaro-1.13.1-4.8 "to build myself cross tool chain, but some problem happened,just before I have used crosstool-ng offcial version, every thing is fine,I have got my toolchain, my operation system is Ubuntu 12.10, when I change to crosstool-ng-linaro, I am follow these steps. ct-ng list-samples, ct-ng linaro-arm-linux-gnueabihf ct-ng menuconfig I just change Local tarballs directory ,Prefix directory ,and change target os from prebuilt to linux, then,I build it,first time error happened at step "cc_core_pass_1 ",I google it and found out it is about multilib,I need to install gcc-multilib and g++-multilib, then,I continue,this time,error happened at step"cc_core_pass_2 ". related messages in build.log: [ALL ] Supported emulations: armelf_linux armelf armelfb armelfb_linux [ERROR] collect2: error: ld returned 1 exit status [ERROR] make[4]: *** [libgcc_s.so] Error 1 [ALL ] make[4]: Leaving directory `/work/software/cortexa9-linaro-build/.build/arm-linux-gnueabihf/build/build-cc-core-shared/arm-linux-gnueabihf/arm-linux-gnueabi/libgcc' [ERROR] make[3]: *** [multi-do] Error 1 [ALL ] make[3]: Leaving directory `/work/software/cortexa9-linaro-build/.build/arm-linux-gnueabihf/build/build-cc-core-shared/arm-linux-gnueabihf/libgcc' [ERROR] make[2]: *** [all-multi] Error 2 [ALL ] make[2]: Leaving directory `/work/software/cortexa9-linaro-build/.build/arm-linux-gnueabihf/build/build-cc-core-shared/arm-linux-gnueabihf/libgcc' [ERROR] make[1]: *** [all-target-libgcc] Error 2 [ALL ] make[1]: Leaving directory `/work/software/cortexa9-linaro-build/.build/arm-linux-gnueabihf/build/build-cc-core-shared' [ERROR] [ERROR] >> [ERROR] >> Error happened in: main[scripts/crosstool-NG.sh] so,I really don't know how to do now,any help is welcome.Thank you Cheers,Rick

11 years, 11 months

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Does Linaro aarch64 gcc toolchain support Cortex-A53/A57 performance tunning.

by Zenon Xiu

Hi team, In the GCC.pdf of gcc-linaro-aarch64-none-elf-4.8-2013.08, it says that -mcpu supports cortex-a53, but when I tried to build a simple hello bare metal application with -mcpu=cortex-a53 option, gcc reports, Error: unknown cpu `cortex-a53' Error: unrecognized option -mcpu=cortex-a53 Could you please confirm whether Cortex-A53/A57 performance tunning is supported? Thanks. Best Regards. ------------------------------------------------------------------ Zenon Xiu -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782

11 years, 11 months

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[ANNOUNCE] Aarch64 toolchain binaries respin 2013.09-01 released

by Bernhard Rosenkränzer

We have spotted a problem with the GOT layout in binaries generated by the 2013.09 Aarch64 toolchain, causing them to crash on startup. New builds fixing this issue are now available at http://releases.linaro.org/13.09/components/toolchain/binaries The arm-linux-gnueabihf and arm-none-eabi toolchains are not affected by this problem - there is no respin version for those builds. The Linux version is supported on Ubuntu 10.04.3 and 12.04, Debian 6.0.2, Fedora 16, openSUSE 12.1, Red Hat Enterprise Linux Workstation 5.7 and later, and should run on any Linux Standard Base 3.0 compatible distribution. Please see the README about running on x86_64 hosts. The Windows version is supported on Windows XP Pro SP3, Windows Vista Business SP2, and Windows 7 Pro SP1. The binaries and build scripts are available from: http://releases.linaro.org/13.09/components/toolchain/binaries Need help? Ask a question on https://ask.linaro.org/ Already on Launchpad? Submit a bug at https://bugs.launchpad.net/linaro-toolchain-binaries On IRC? See us on #linaro on Freenode. Other ways that you can contact us or get involved are listed at https://wiki.linaro.org/GettingInvolved.

11 years, 11 months

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[ACTIVITY] Week 40

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

11 years, 11 months

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[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

11 years, 11 months

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[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.

11 years, 11 months

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[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

11 years, 11 months

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[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.

11 years, 11 months

1
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[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.

11 years, 11 months

1
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[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.

11 years, 11 months

1
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[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.

11 years, 11 months

1
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[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

11 years, 11 months

1
0
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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

11 years, 11 months

3
3
0 0

[Activity] Sept 23-30

by Rob Savoye

== Progress == * Got Odroid U2 board up and doing builds. Stock hardkernel kernel images are unstable, keeps remounting USB drive read-only under a load. * Got the new support for branches and revisions for any toolchain component working in Cbuildv2. * Attended the 30th anniversary of the GNU project in Boston over the weekend. == Plan == * Continuing with Jenkins/Cbuildv2/Git integration. * Try to work around problem with importing test results. * Compare automated tarballs with the current release tarballs. * Get Odroid U2 working reliably. * Get Odroid X2 working. == Issues == * Upgrading Gnome on my laptop destroyed my desktop to where nothing worked, limiting productivity for a few days.

11 years, 11 months

1
0
0 0

MPFR build issue

by Kugan

Hi, With respect to the MPFR build error, (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58578), is movs appropraite as shown below? When _err1 is negative the condition is evaluating it to be true. /* C Codeoes */ if (_err1 > 0) { /* working code */ .loc 1 67 0 cmp r3, #0 ble .L6 /* not working code*/ .loc 1 67 0 movs r3, r3, asl #1 ble .L6 When I looked at the ARM documents, I found the following Condition flags ------------------- If S is specified, for MOV instructions: 1. update the N and Z flags according to the result 2. can update the C flag during the calculation of Operand2 (see Flexible second operand) 3. do not affect the V flag. And also le Signed less than or equal. (Z==1) || (N!=V) Does this means we cant movs at comparision. http://gcc.gnu.org/ml/gcc-patches/2013-02/msg00861.html added this and I guess it is intentional. Am I missing anything here? Thanks, Kugan

11 years, 11 months

1
0
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[ACTIVITY] 23-27 September 2013

by Christophe Lyon

== Progress == * AArch64 frame grows downward: no feedback yet. * Disable-peeling: trying to tune the vectorizer cost model so that it is less aggressive. * AArch64 bootstrap failure: build it still on-going, so still hoping to reproduce it. * GCC trunk cross-validation: - aarch64 added - looking at how to handle compute farm jobs timeouts nicely * Backports: - launched several merge requests for a few individual patches. == Next == * AArch64 frame grows downward: continue * Disable-peeling: continue * Backports : spend little time on checking the results

11 years, 11 months

1
0
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[Activity] Week 39

by Charles Baylis

Progress . worked on cleaning up arm config in gcc (TCWG-201) . not really convinced I have a way to properly test the result . a bit of bug triage . a bit more on the 4.7 segfault bug (lp1215925) Plans . ping the arm*gnueabihf testsuite patch . finish the config clean up . revisit 4.7 segfault, now I have more suggestions from Matt

11 years, 11 months

1
0
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[ACTIVITY] Week 39

by Yvan Roux

== Issues == * None. == Progress == * Misc: - Installed Saucy on Chromebook. * LRA on AArch64: - Committed RTL analyser patch. - Committed patch which switch on LRA on AArch64. * LRA on AArch32: - Committed patch which fix failing assembly scan test with LRA. - Committed LRA register notes DEAD and UNSUSED handling in LRA. - Bootstrapped GCC with LRA on Chromebook. - Analysis of testsuite results ongoing. == Next == * Continue on LRA.

11 years, 11 months

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[ACTIVITY] 23-27 September 2013

by Venkataramanan Kumar

Short week (Tuesday and Wednesday went to US consulate Chennai for VISA interview and document processing). == Progress == * gprof support for aarch64 Re-based and tested. Asked permission for upstreaming in trunk. Gibc patches are upstreamed. Thanks to Marcus. * Aarch64 Boot strap failure. Tried to reproduce it in V8 model. Build failing in stage 1 for me. * 1-1 Meet with Christophe. == Plan == * Back to libssp support. * Aarch64 boot strap issue. == Issues == * LTO/PGO work stopped now since libssp support priority is more. Misc ------ October 2 India Holiday.

11 years, 11 months

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[ACTIVITY] 23 - 27 September 2013

by Kugan

== Progress == * MPFR and GMP Build error with Latest 4.8 Release - Reproduced MPFR error with a simplified testcase - Found the buggy codesequence and the patch that introduced it. - Looking at solution for this - Reprdouced GMP error with -march=armv7-a and -mthumb - continuing with the invetigation * 64bit division - Looked at current libgcc implementaion and studied the alorithm. * Addressing patch review - Posted second patch for zero/sign extension * spec2k comparison between ARM and x86 - Ran spec2k with various options to validate code analysis == Plan == * Continue with spec2k comparison between ARM and x86 * Continue 64bit division * Fix GMP and MPFR build error

11 years, 11 months

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[ACTIVITY] 23 - 27 September 2013

by Omair Javaid

== Progress == (TCWG-270) * Tested GDB Process Record/Replay and reverse debug feature for arm. * Thumb32 support patch along with a couple of bug fixes made huge improvement in testsuite results. (TCWG-267) and (TCWG-269) * Reviewed all previous submitted patches and wrote response patch updates. * Implemented gdb/testsuite/gdb.dwaf2/dw2-error.exp using dwarf assembler. (TCWG-268) * Submitted patch for failing gdb/testsuite/gdb.dwaf2/dw2-case-insensitive.exp (TCWG-272) * Re-viewed and verified gdb bugs reported on launchpad and created JIRA cards where required. (TCWG-265) * Generated Test data to test instruction decoding in arm specific code of gdb process record/replay. (TCWG-280) * Reviewed previously submitted patches related to gdb process record syscall support for arm targets. * Submitted US Visa application for processing and got appointment for Visa Interview. * Reviewed all open JIRA cards and created new ones for future progress on GDB == Plan == (TCWG-270) * Submitt patch for bug fixes and show testsuite improvement with bug fixes and thumb32 patch. * Do more testing and analyse failures and try to fix them if possible. * Verify issues reported by maintainers in old arm instruction decoding code. (TCWG-267), (TCWG-268) and (TCWG-269) * Update gdb/testsuite/gdb.dwaf2/dw2-error.exp as asked by gdb maintainers. * Ping or Send response to comments. (TCWG-280) * Test syscall support with old patch and make changes if required. * Travel to Islamabad on Tuesday to attend US visa interview early morning Wednesday.

11 years, 11 months

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[ACTIVITY] Week 39

by Zhenqiang Chen

== Issues == * None == Progress == * Update Conditional compare (CCMP) patch according to community comments. * Investigate how to generate CCMP to support more than two compares. - Investigate ifcombine to create more CCMP opportunities. - Enhancing phiopt to handle CCMP case like: if (a == 0 && b > c) return 0 return a; == Plan == * Continue on CCMP to support more than two compares. == Panned leaves == * Oct. 1-7: National Day of China holiday

11 years, 11 months

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[ACTIVITY] Week 39

by Renato Golin

== Progress == * Profiling ImageMagick - Clang 3.4-svn is around 10% less performing than GCC 4.7.3 - Mainly due to recursive octree-style map/reduce of most functions, spending a lot of time before/after branches - Any optimization on that front won't fit the "Incubation" tag * Profiling EEMBC - Found 2 cases where Clang is *a lot* better than GCC 4.7.3 (pruning bmark.c, producing much smaller objects, and vectorizing telecom/autcor, which GCC can't) - Most of the time, GCC is slightly better (~5% faster, ~10% smaller, geomean) - Wrote some scripts to run any two compilers against each other, compare the results and dump the ratios in a TSV file. == Plans == * Update EEMBC Linaro image with Clang toolchain changes * Look for low-hanging fruits in EEMBC * Try comparison with GCC 4.8 and 4.9, too * Find a way to extract Phoronix results in TSV format

11 years, 11 months

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[ACTIVITY] Week 39

by Will Newton

== Progress == * Checked testsuite for glibc and gcc bootstrap on aarch64 native * Released Linaro gdb 7.6.1 2013.09-1 * Submitted glibc pointer guard patch using TLS * Submitted respin of pointer guard patch using a global variable * Submitted binutils aarch64 ifunc patches for a second time * A little bit of time on malloc * Built office furniture! == Issues == * None == Plan == * Finish off pointer guard * Hopefully back to malloc -- Will Newton Toolchain Working Group, Linaro

11 years, 11 months

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[ANNOUNCE] Linaro Toolchain Binaries 2013.09 released

by Bernhard Rosenkränzer

The Linaro Toolchain and Platform Working Groups are pleased to announce the 2013.09 release of the Linaro Toolchain Binaries, a pre-built version of Linaro GCC and Linaro GDB that runs on generic Linux or Windows and targets the glibc Linaro Evaluation Build. This release introduces a set of experimental (pre-alpha) crosscompilers to big-endian ARM architectures. Uses include: * Cross compiling ARM applications from your laptop * Remote debugging * Build the Linux kernel for your board What's included: * Linaro GCC 4.8 2013.09 * Linaro Newlib 2.0 2013.06 * Linaro Binutils 2.23 2013.06 * Linaro Eglibc 2.17-2013.07-2 * Linaro GDB 7.6 2013.05 * A statically linked gdbserver * A system root * Manuals under share/doc/ The system root contains the basic header files and libraries to link your programs against. Interesting changes include: * gcc updated to 4.8-2013.09 * Initial big-endian pre-alpha versions added The Linux version is supported on Ubuntu 10.04.3 and 12.04, Debian 6.0.2, Fedora 16, openSUSE 12.1, Red Hat Enterprise Linux Workstation 5.7 and later, and should run on any Linux Standard Base 3.0 compatible distribution. Please see the README about running on x86_64 hosts. The Windows version is supported on Windows XP Pro SP3, Windows Vista Business SP2, and Windows 7 Pro SP1. The binaries and build scripts are available from: http://releases.linaro.org/13.09/components/toolchain/binaries Need help? Ask a question on https://ask.linaro.org/ Already on Launchpad? Submit a bug at https://bugs.launchpad.net/linaro-toolchain-binaries On IRC? See us on #linaro on Freenode. Other ways that you can contact us or get involved are listed at https://wiki.linaro.org/GettingInvolved.

11 years, 11 months

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[ANNOUNCE] Linaro gdb 7.6.1 2013.09-1 released

by Will Newton

### About Linaro gdb Linaro gdb is a release of the GNU debugger with bug fixes and enhancements for ARM platforms. gdb allows interactive debugging of C and C++ programs natively and remotely. ### Linaro gdb 7.6.1 2013.09-1 The Linaro Toolchain Working Group is pleased to announce the 2013.09-1 release of Linaro gdb 7.6.1, the first release in the 7.6.1 series. This release is based on the latest upstream gdb 7.6 stable branch, but with additional features and bug fixes. #### Additional Features * None #### Bug Fixes * Fixes for debugging on AArch64 with hardware breakpoints. ### Source #### Release Tarball * https://releases.linaro.org/13.09/components/toolchain/gdb-linaro #### Development Tree * git://git.linaro.org/toolchain/gdb.git This release was built from the `linaro_gdb-7_6_1-2013_09-1_release` tag. ### Feedback and Support Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development. * Linaro Toolchain Development [mailing list](http://lists.linaro.org/mailman/listinfo/linaro-toolchain) * Linaro Toolchain IRC channel on irc.freenode.net at `#linaro-tcwg` * Questions? [ask Linaro](http://ask.linaro.org/). * Interested in commercial support? inquire at [Linaro support](mailto:support@linaro.org) -- Will Newton Toolchain Working Group, Linaro

11 years, 11 months

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[Activity] Sept 16-22

by Rob Savoye

== Progress == * Finally got GCC 4.7 automatic updates working from launchpad. * Continuing with Jenkins/Cbuildv2/Git integration. * Added support for using specific commit IDs with Git and Cbuildv2. Also many improvements to how git branches and revisions are handled. * Worked on importing testing results from Jenkins builds, there seems to be a problem finding the .sum files when the build is complete. * Started getting new Odroid boards online running Ubuntu. == Plan == * Work on getting Canadian Cross builds working in Cbuildv2. * Finish getting Odroid boards setup. * Compare automated tarballs with the current release tarballs. * Continuing with Jenkins/Cbuildv2/Git integration. * Try to work around problem with importing test results. == Issues == * Phone and network access has been randomly down for extended periods. I assume it's flood repairs related.

11 years, 11 months

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[ACTIVITY] 16-20 Sept 2013

by Christophe Lyon

== Progress == * GCC trunk cross-validation: - stabilizing reporting (dealing with thread tests giving unstable results when run under qemu, timeouts caused by overload of the compute farm, ....) - adding aarch64 * Backports: - updated list (57 candidates for 4.8-2013.03), discussed prioritization and collaboration with ARM. - sent 1st branch-merge candidate for testing, as a preparation to partially backport a bug fix from Richard. * Aarch64 frame grows downward: - modified test-case shows that code can be better with frame grows downward than upward, depending on variables order and layout. == Next == * Backports - start backporting to prepare 2013.10 release * AArch64 frame grows downward: continue * Disable-peeling: resume work

11 years, 11 months

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[ACTIVITY] Week 38

by Will Newton

== Progress == * Visit to Cambridge (Tue - Thu) and annual leave (Fri). * Applied gas fix for neon vector load/store constraints. * Applied glibc memcpy performance tweak. * Applied gdbserver AArch64 fix to trunk and branch. * Updated gdb release process and built a release candidate. * Started glibc ARM pointer guard work == Issues == * None == Plan == * gdb 2013.09 release * Various small items arising out of meetings last week * Complete glibc ARM pointer guard -- Will Newton Toolchain Working Group, Linaro

11 years, 11 months

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[ACTIVITY] Week 38

by Yvan Roux

== Issues == * None. == Progress == * LRA on AArch64: - Validate Vladimir's patch to support HARD_REGNO_CALL_PART_CLOBBERED macro in LRA. - Reduced and analysed libstdc++ failures : they were due to PCH usage, but the issue was fixed with a rebase on trunk's head. - Testsuite is now clean. - Waiting for my rtl analyser patch to be accepted. * LRA on AArch32: - No more libstdc++ failures, they were PCH related too. - One more issue in ARM mode testsuite, related bad REG_NOTES info after LRA pass. - Reduced failing Thumb testcase. == Next == * Continue on LRA.

11 years, 11 months

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[ACTIVITY] 16 - 20 September 2013

by Omair Javaid

== Progress == * Spent week in Linaro's Cambridge office, had meetings with team mates. * Visited ARM office in Cambridge and met toolchain team there. * Submitted patch for GDB Record and Replay thumb32 support upstream. * Reviewed and reproduced gdb bugs reported on launchpad and changed their status according. * Reviewed previously submitted gdb patches and replied to comments if required. * Reviewed x86 record syscall code in GDB for adding support for recording ARM syscall record. * Updated JIRA cards or added new issues against bugs or features. == Plan == * Progress on record and replay feature by testing instruction set support. * Review all open JIRA cards for GDB * Work on getting previous patches committed or resubmit new ones. * Submit US visa application for LCU13.

11 years, 11 months

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[ACTIVITY] Week 38

by Zhenqiang Chen

== Issues == * None == Progress == * 2 day off on Chinese Mid-Autumn Festival * Update conditional compare (CCMP) patch according to community comments. * Work out a patch to fix PR 58423. * Prepare LCU'13 Visa and hotel. == Plan == * Continue on CCMP. == Panned leaves == * Sept. 24 AM: US Visa. * Oct. 1-7: National Day of China holiday

11 years, 11 months

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[ACTIVITY] 16 -20 September 2013

by Kugan

== Progress == * Addressing patch review - zero/sign extension preparation patch accepted. - Christophe is helping to commit. * spec2k comparison between ARM and x86 - Looked at conditional code generation related code in gcc - looked at ifcvt and code in arm.md and arm.c to understand the heuristics that dictate how much to conditionalize and what is causing some of the problems I am seeing. == Plan == * Continue with spec2k comparison between ARM and x86 * Start looking at 64bit division

11 years, 11 months

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