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:/
hi,
For building arm64 kernel, I tried all toolchain released from
http://releases.linaro.org/latest/components/toolchain/binaries/
But it complained about some instructions bad:
/home/work/linux/arch/arm64/include/asm/irqflags.h: Assembler
messages:
/home/work/linux/arch/arm64/include/asm/irqflags.h:49: Error: no
such instruction: `msr daifset,'
/home/work/linux/arch/arm64/include/asm/irqflags.h:68: Error: no
such instruction: `mrs %rax,daif//arch_local_save_flags'
/home/work/linux/arch/arm64/include/asm/irqflags.h:49: Error: no
such instruction: `msr daifset,'
/home/work/linux/arch/arm64/include/asm/irqflags.h:68: Error: no
such instruction: `mrs %rax,daif//arch_local_save_flags'
/home/work/linux/arch/arm64/include/asm/irqflags.h:40: Error: no
such instruction: `msr daifclr,'
/home/work/linux/arch/arm64/include/asm/irqflags.h:68: Error: no
such instruction: `mrs %rax,daif//arch_local_save_flags'
/home/work/linux/arch/arm64/include/asm/irqflags.h:40: Error: no
such instruction: `msr daifclr,'
Could anyone tell how to solve it? thanks!
== Progress==
TCWG-435 needless busy-wait in lowlevellock.c (3/10)
* Patches ready, testing a bit slow & fiddly
TCWG-156 cortex-strings memset (3/10)
* Worried about noisy benchmarks
* Learned to use Lava
* Found some helpful internal docs
* Managed to tweak the code slightly
== Misc ==
Meetings/mail/etc 2/10
(Public) holiday 2/10
== Plan ==
Stop worrying and follow the general curve of the noisy benchmarks
(But also try to convince Maxim's spec scripts + lava to generate some
less noisy results)
Another public holiday next Monday
== Progress ==
* GDB reverse debugging on aarch64
-- Complete decoding of aarch64 data processing immediate instructions.
[TCWG-399] [1/10]
-- Complete decoding of aarch64 data processing register instructions.
[TCWG-402] [1/10]
-- Completed decoding of aarch64 exception and system instructions.
[TCWG-400] [2/10]
-- Further progress on decoding of aarch64 load store instructions.
[TCWG-401] [2/10]
-- Started implementation of aarch64 syscall record/replay. [TCWG-409]
[2/10]
* Sick Day Off on Monday [2/10]
== Plan ==
* GDB reverse debugging on aarch64
-- Further progress on decoding of aarch64 load store instructions.
[TCWG-401]
-- Further progress on aarch64 syscall record/replay. [TCWG-409]
* Public Holiday on 1st May.
Short week, Easter Monday + child care (3/10)
== Issues ==
* Toolchain64 disk still full every 2 days
== Progress ==
* Linaro GCC 4.9 2014.04 release (3/10)
- Branch merge with FSF 4.9.1
- Release tarball available on releases.linaro.org
- Announcement will follow
* Launchpad bugs: (2/10)
o LP #1169164 : including signal.h exposes various PSR_MODE #defines
- Discussed and implemented a fix
- Validation on-going
* Misc:
o Cbuildv1 baby-sitting (1/10)
o Various meetings (1/10).
o Resolved cards :
- TCWG-343. Make LRA the default for the ARM backend
- TCWG-422. LP-bug 1296676 : ICE in assign_by_spills building linux
btrfs module
== Next ==
- One day off (Labor day)
- Submit patch for LP #1169164
- TCWG-345. Analyse performance of LRA for ARM
== Progress ==
PGO - AArch64 (TCWG-179) (4/10)
* Completed SPEC2006 runs ( -O3 + PGO) in chroot + qemu-arm64-saucy
with Linaro branch(4.9).
* Perlbench train run failed, issue with qemu.
* DealII train runs failed due to system libstdc++.so.6 not compatible
with GCC 4.9.
Changing the LD_LIBRARY_PATH to point to the libstdc++.so.6 that
gets built along with GCC 4.9 solves the problem.
* CPU2000 runs are completed my maxim so functional testing of PGO for
spec benchmarks completed.
* Wating on Arm64 hardware to benchmark SPEC2000 and SPEC2006 and
compare against the PGO runs for x86.
Misc (2/10)
* Setup arm64-trusty chroot and built GCC 4.9 compiler
* Maxim 1-1 discussions and set up opennx client
* Checked libssp patch upstream status
* Read about gcc debug counters.
* Upgrade laptop to Ubuntu 14.04 LTS
Short week (22nd and 23rd leave (4/10))
== Plan ==
* Bug fixing.
== Issues==
* Waiting on hardware to Benchmark SPEC2006 PGO runs in hardware.
== Issue ==
* None
== Progress ==
* More tests on shrink-wrap changes (TCWG-133, 6/10).
- Cortex-m3 tests exposes a data flow issue: New BB created after
dfinit does not have correct df_lr info.
- Collect Spec2k benchmarks on X86-64 and ARM.
* Linaro 4.9 binaries release (2/10).
- Update Linaro crosstool-ng config and samples to support 4.9.
- Disable parallel build for gcc manual (pdf & html).
- Prebuild binaries for aarch64:
http://cbuild.validation.linaro.org/binaries/4.9-prerelease-2014.04
* Ping aarch64 fcel patch. But still no comments.
* Fix a trunk build fail issue @r209556.
* One day off (2/10).
== Plans ==
* Send the shrink-wrap related patches for review.
* PING the pending patches.
* Investigate move-loop-invariants heuristics.
== Planed leaves ==
* May 1-3: Labour day holiday.
== Progress ==
* Got Jenkins working with matrix builds so we can utilize all LAVA
slaves. (TCWG 1387 - 3/10)
* Write script to take a list of revisions and then build and test
them all and diff the results. (TCWG 448 - 4/10)
* More experimenting with Kugan's benchmarking branch. (1/10)
* Meetings and Misc (2/10)
== Plan ==
* More work on matrix builds. (TCWG 1387)
* More work on regression test analysis and reporting. (TCWG 448)
== Progress ==
* Short week (21st and 25th are public holidays) (4/10)
* TCWG-447 (5/10)
* Implemented and tested fenv target hooks, necessary built-ins and md
patterns
* Posted RFC patches for review for both arm and aarch64
* http://gcc.gnu.org/ml/gcc-patches/2014-04/msg01743.html
* http://gcc.gnu.org/ml/gcc-patches/2014-04/msg01744.html
* TCWG-413 Spec2006 (1/10)
* Finished the set-up
* On hold for now
== Plan ==
* upstream zero/sign extension elimination activities
* start with literal pool merging
