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
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:/
== Issues ==
* Multiple validation infrastructure issues (gerrit/jenkins/git.linaro.org)
now fixed.
* aarch64-none-elf is now really long to complete (~11hrs) whereas it
was less than 1hr last week.
== Progress ==
* GCC 4.9 2014.09 (3/10)
- Committed last week backports
- More backports under validation
- vca* intrinsics test are faiures analysis ongoing.
* Misc
- Linaro GCC git repo migration: (2/10)
+ Discussed and test the migration with Milo,
we'll be ready to move the coming week.
- Upstream bugzilla: (2/10)
+ Fixed PR 62248 : Configure error with --with-fpu=fp-armv8
- Linaro bugzilla: (1/10)
+ Fixed #562 : New tests failed on linaro 4_9 branch
- Various meetings: (1/10)
- Helped Venkat with backports (1/10)
- launchpad bug migration duty.
== Next ==
* Off on Monday
* Complete backports.
* Back on AArch64 libunwind
* Prepare Connect Hacking session
== Progress ==
* Monday bank holiday (2/10)
* Email, meetings, etc. (1/10)
* Upstream work (1/10, CARD-341)
- Patch review
* Built releases of newlib, binutils and gdb for 2014.09 (2/10)
* LCU14 research and slides (4/10)
== Issues ==
* None
== Plan ==
* Finish LCU slides
* malloc benchmarking
--
Will Newton
Toolchain Working Group, Linaro
== Progress ==
* GCC trunk/4.9 cross-validation (1/10)
- checking results
* bug #306 (bootstrap failure on i686) (3/10)
- fixed an incorrect backport than made GCC build to fail in stage1
- now trying to reproduce the original bug reported
* AArch64 libsanitizer (2/10)
- resumed work, debugged sysroot / chroot problems with cbuild2
thanks to Maxim
* Misc (conf calls, meetings, ...) (4/10)
- usual 1:1 and team calls
- wrote some doc for Wang
== Next ==
* GCC trunk/4.9 cross-validation monitoring
* bug #306 (bootstrap failure on i686)
* AArch64 libsanitizer
* Neon intrinsic tests
== Progress ==
GDB Tracepoints/Fast Tracepoints support on arm [TCWG-480] [4/10]
* FAST tracepoints try out on arm chromebook with trampoline code
borrowed from kernel.
AArch64 gdb record-replay bug fix [TCWG-503][TCWG-498] [2/10]
* Debugging of issues
Miscellaneous [4/10]
* Reading on PreLink for LCU14 Presentation
* Reading on PERF tools for LCU14 Presentation
* LCU14 slides preparation.
* Emails/Patch scrolling/Meetings etc
== Plan ==
GDB Tracepoints/Fast Tracepoints support on arm [TCWG-480]
Some progress on AArch64 gdb record-replay bug fix [TCWG-503] [TCWG-498]
LCU14 slides preparation and study for presentation.
= Progress ==
* Upstream work (2/10, CARD-341)
- Bug investigations
- Applied a couple of patches
* Booting upstream kernel on Chromebook (2/10)
- Kernel booting and running
- No builtin wifi but dongle works ok
- Breakpoint issue fixed but the test still fails for some other
reason, created upstream issue
* Malloc application benchmarking (3/10, TCWG-441)
- Various improvements of the scripts
- Investigate benchmark variability in the presence of frequency scaling
- Is it possible to get repeatable numbers on Intel i{7,5,3}?
* Start looking at LCU session requirements (1/10)
* Annual leave on Friday (2/10)
== Issues ==
* None
== Plan ==
* LCU session slides
--
Will Newton
Toolchain Working Group, Linaro
== Progress ==
* TCWG-180 Debugging - LTO bootstrap failure in Aarch64 with GCC 4.9. (4/10)
Completed. Patch that sets same tune parameters solves the bootstrap
compare errors in Branch. Closed the JIRA cards. There are still LTO
IR streaming issues in trunk which needs to tracked down and fixed at
tree level. and no plans of doing that now.
* TCWG-520 ICE in linaro compiler for ARMv7 target. Bisected the
revision in trunk which fixes that. Backported and tested and fixes
tha bug. (4/10)
* Others (2/10)
* Bug migration from launchpad
* Meetings Christophe, Ryan, Maxim and GCC status meeting
* Misc and internal meeting.
* setup LLVM.
== Plan ==
* Continue Bug fix (TCWG 520).
* Benchmark Core mark with LTO (TCWG-181).
* Upstream patch review.
== MISC ==
* Local Holiday on 29th August
