linaro-toolchain September 2014

linaro-toolchain@lists.linaro.org

14 participants
36 discussions

New IRC Channel for Linaro Toolchain Working Group

by Matthew Gretton-Dann

All, During Connect the suggestion was made that each working group should have its own IRC Channel for discussions and topics relating to the group in particular (as opposed to #linaro which is 'generic' Linaro conversations). Therefore I have just set up #linaro-tcwg on Freenode for the Toolchain Working Group. This channel is public and open to anyone who wants to talk with the TCWG group about anything toolchain related. Thanks, Matt -- Matthew Gretton-Dann Toolchain Working Group, Linaro

2 years, 9 months

[ANNOUNCE] Linaro Toolchain Binaries 2013.07 released

by Zhenqiang Chen

The Linaro Toolchain and Platform Working Groups are pleased to announce the 2013.07 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 2013.07-1 * 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: * The sysroot is based on Linaro versions of Eglibc. About details of Linaro Eglibc, please refer https://releases.linaro.org/13.07/components/toolchain/eglibc-linaro. 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://launchpad.net/linaro-toolchain-binaries/trunk/2013.07 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. Know issues: * Some version information in README are incorrect. * gdb can not backtrace into libc. Notes: * To use all of the features of Linaro eglibc, the sysroot in 32-bit toolchain release is updated to Linaro eglibc, which is 2.17. If you get runtime errors about libc version, please get the sysroot from the release tarball (gcc-linaro-arm-linux-gnueabihf-4.8-2013.07-1_linux/arm-linux-gnueabihf/libc/) or download from launchpad https://launchpad.net/linaro-toolchain-binaries/support/01/+download/linaro… If you do not want to use Linaro sysroot, you'd add option to gcc to find your sysroot: --sysroot=<directory> * To run 32-bit application built from arm-linux-gnueabihf toolchain in aarch64 system, you'd copy sysroot and runtime from release package to your root of aarch64 system. i,e. scp -r gcc-linaro-arm-linux-gnueabihf-4.8-2013.07-1_linux/arm-linux-gnueabihf/libc/* AARCH64-SYSTEM:/ scp -r gcc-linaro-arm-linux-gnueabihf-4.8-2013.07-1_runtime/* AARCH64-SYSTEM:/

9 years, 5 months

[PATCH 1/2] lib/make.sh: Add support for installing headers for i686 and x86_64

by Will Newton

--- lib/make.sh | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/lib/make.sh b/lib/make.sh index fb7137c..b917ece 100755 --- a/lib/make.sh +++ b/lib/make.sh @@ -460,8 +460,15 @@ make_install() local srcdir="`get_srcdir $1 ${2:+$2}`" if test `echo ${target} | grep -c aarch64` -gt 0; then dryrun "make ${make_opts} -C ${srcdir} headers_install ARCH=arm64 INSTALL_HDR_PATH=${sysroots}/usr" - else + elif test `echo ${target} | grep -c i.86` -gt 0; then + dryrun "make ${make_opts} -C ${srcdir} headers_install ARCH=i386 INSTALL_HDR_PATH=${sysroots}/usr" + elif test `echo ${target} | grep -c x86_64` -gt 0; then + dryrun "make ${make_opts} -C ${srcdir} headers_install ARCH=x86_64 INSTALL_HDR_PATH=${sysroots}/usr" + elif test `echo ${target} | grep -c arm` -gt 0; then dryrun "make ${make_opts} -C ${srcdir} headers_install ARCH=arm INSTALL_HDR_PATH=${sysroots}/usr" + else + warning "Unknown arch for make headers_install!" + return 1 fi if test $? != "0"; then warning "Make headers_install failed!" -- 1.9.3

9 years, 6 months

[ACTIVITY] 8th - 26th September

by Bernie Ogden

cbuild2 benchmarking - TCWG-360 [9/10] * Knocked off a lot of rough edges * Now working fairly robustly lowlevellock.h comments - CARD-341 [4/10] * Got a bit stuck trying to follow condvar locking * But wasn't really needed to describe the code in question LCA [10/10] LCA recovery day [2/10] Meetings/mail/etc [5/10] =Plan= cbuild2 benchmarking: * Push upstream for others to look at * Sort out storage story for benchmark sources and results * Try to get working on a Juno (in LAVA, therefore on OE) * Look at our Jenkins scripts with a view to figuring out how to hook in * Work through list of bits 'n' pieces to fix - + Don't scrape logs (bad for server) + Don't fail on network timeouts + Extra target control knobs - disable ASLR, set a nasty nice value, maybe hugepages + Set appropriate flags automatically for cross-builds

9 years, 6 months

[ACTIVITY] 22 - 26 September 2014

by Will Newton

== Progress == * Monday off to recover from Connect (2/10) * Catch up on email (1/10) * Upstream work (1/10, CARD-341) - Patch review * Investigate malloc single-thread optimizations (1/10, TCWG-436) - More exploratory work on atomics * Investigate binutils support for full range of AArch64 relocs (1/10) * Annual leave Thursday and Friday (4/10) == Issues == * None == Plan == * More work on atomics * Figure out how to make an LLVM cross compiler with gas/ld -- Will Newton Toolchain Working Group, Linaro

9 years, 6 months

[ACTIVITY] Week 39

by Yvan Roux

2 post-connect days off (4/10) == Issues == * Validation is in an "under construction" state. == Progress == * GCC 4.9 2014.10 (4/10) - Analysed validation issues with our cbuild2 branches. * Misc: (2/10) - Catch up with mails. - Various meetings. - AArch64 Libunwind upstream patch review. == Plan == * Catch up with backports * Audit validation failures

9 years, 6 months

[Weekly] 22-26 SEPT 2014

by Michael Collison

== This week == * TCWG-515 - Neon intrinsic testing part 1 (6/10) - developed reduced test case to demonstrated vclz DejaGnu failure - Created upstream bug (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63365) - Bug triage discovered issue occurs in copy propagation * Linaro Bugzilla 331 - [4.9 Regression] ICE in final_scan_insn, at final.c:2952 (aarch64-linux-gnu) (2/10) - Completed validation testing and sent to gcc-patches for trunk review * Linaro bugzilla 602 - gcc 4.7.3 compiler internal error while building hsail components (1/10) - Bug triage * Misc. (1/10) - 1:1 Meetings == Next week == - Identify solution for upstream bug 63365 - Triage bugzilla 602 - Resolve any blocking issues to patch for bugzilla 331

9 years, 6 months

[ACTIVITY] 22-26 Sept 2014

by Kugan

== Progress == * LR register not used in leaf functions (TCWG-539) (2/10) Posted the patch after regression testing https://gcc.gnu.org/ml/gcc-patches/2014-09/msg01833.html * AArch64 Spec2006 int regression (3/10) - After struggling to boot Juno, found the combination that works - Ran spec2006 int benchmarks to try reproduce - waiting for more information to continue * Launchpad bugs (LP1331112, LP1332640. LP1331126 and LP1320965) (3/10) - Set-up cbuild2 and spec2k on aarch64 board - ran aarch32 and aarch64 in aarch64 board with 09.2014 - Updated the bug entries with the results * Misc (2/10) - Connect recovery (2/10) == Plan == * 29/09/2014 - Public holiday * Get back to zero/sign extension with pass to promote operations

9 years, 6 months

[Activity] 22 - 26

by Venkataramanan Kumar

== Progress == * Connect recovery [6/10] Very short week short week travel back from connect 22nd - 23rd travel. 25th - sick leave. * Backport - Bug 676 - CSE did not optimize the redundant cmp instruction on aarch64 [2/10]. Checked the issue by building latest trunk, linaro branch and by adding the patch on top of linaro branch . Validated the code generated at -O2 and it seemed to be optimal and bug does not occur. Discussed with Christophe and decided to rebackport it along with 211881. It was reverted because of an libjava bug which is fixed in 211881. Used back flip to back port, git review was not automatically working. So manually amended by adding the change log for combined backport of revisions 209643 and 211881. * Misc [2/10] Prepared notes on LCU14 to AMD team. Examined spec benchmark in internal Aarch64 hardware for a support issue. Internal meeting and 1-1 with manager. == Plan == * Coremark benchmark and report for PGO and PGO + LTO * Get profiles on trunk for PGO and PGO + LTO * 29/9/2014 - Personal day off * 2/10/2014 - 3/10/2014- Dusserra Holidays Leave

9 years, 6 months

[ACTIVITY] Week 39

by Charles Baylis

== Progress == * Connect recovery [4/10] * NEON load/stores (TCWG-516 [5/10]) . initial review of my vldN_lane asm()->__builtin patches is promising . the other patches for other loads/stores are wrong. Have been investigating (with upstream) how much bigger the can of worms is. * Misc [1/10] . LCA15 travel . bug investigation (#405) == Plan == * more NEON load/store

9 years, 6 months

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linaro-toolchain September 2014