The Linaro Toolchain Working Group is pleased to announce the
release of both Linaro GCC 4.7 and Linaro GCC 4.8.
As announced at Linaro Connect USA 2013 Linaro GCC is moving to a
pattern of quarterly stable releases, with engineering releases in the
intervening months. This is the first stable release, and contains no
known regressions compared to the 2013.12 release.
The next release of GCC 4.7 will be the 2014.04 stable release. There
will be no engineering releases of GCC 4.7 in 2013.02 or 2013.03.
The next stable release of GCC 4.8 will be the 2014.04 release. Next
month's release - 2013.02 - will be an engineering build.
Linaro GCC 4.7 2014.01 is the twenty second release in the 4.7
series. Based off the latest GCC 4.7.4+svn206380 release, this is the
ninth release after entering maintenance.
Interesting changes include:
* Updates to GCC 4.7.4+svn206380
Linaro GCC 4.8 2014.01 is the tenth release in the 4.8 series. Based
off the latest GCC 4.8.3+svn206350 release, it includes performance
improvements and bug fixes.
Interesting changes include:
* Updates to GCC 4.8.3+svn206350
* Enhanced multilib support
The source tarballs are available from:
http://releases.linaro.org/14.01/components/toolchain/gcc-linaro/4.7http://releases.linaro.org/14.01/components/toolchain/gcc-linaro/4.8
Downloads are available from the Linaro Releases website:
http://www.linaro.org/downloads/
More information on the features and issues are available from the
release pages:
https://launchpad.net/gcc-linaro/4.7/4.7-2014.01https://launchpad.net/gcc-linaro/4.8/4.8-2014.01
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
== Progress ==
* Got got Beagle Board blacks up, installed all necessary
dependencies to build toolchains. (TCWG-379 - 1/10)
* Installed QEMU and Foundation model on all TCWG x86_64 build
slaves. (TCWG-380 - 1/10)
* Minor bug fixes for Cbuildv2 produced source tarballs to be
hopefully now 100% match with what we usually release. (2/10)
* More major bug fixes and some refactoring for Cbuildv2 produced
binary tarballs to match with what we usually release. (3/10)
* Meetings. (1/10)
== Plan ==
* Build static gdbserver for target via Cbuildv2.
* More work on binary tarball building.
* Add Win32 installer for Canadian cross built binary
releases to Cbuildv2. (TCWG-381)
* Once Jenkins has a node_selector for the new Beagle Board Blacks,
get those working for native builds. (TCWG-379)
* Get QEMU and Foundation Model running on TCWG x86_64 build slaves
so Jenkins can use them for native builds. (TCWG-380)
== Issues ==
* I got invited to Mt Everest last week... :-)
* 4 days week (still some times spent at university).
== Issues ==
* none
== Progress ==
* LRA on AArch32:
o TCWG-343 : Make LRA the default for the ARM backend (3/10)
- Most of the issues fixed or about to be fixed by Vladimir :
* iWMMXT issue and Thumb1 udivmoddi4 : fixed.
* Thumb1 code size issue : partial patch proposed.
- Looking backend places (ARM and AArch64) where reload_in_progress
is used to verify if lra_in_progress is needed as well.
Validation ongoing.
o TCWG-345 : Analyse performance of LRA for ARM. (0/10)
- No progress this week.
* Loop specialisation patch review: (1/10)
o Sent feedback to Samsung.
* 2014.01 release: (1/10)
o Branch merge review
* [Bug 1258013] Re: Cannot build arm64 kernel with CONFIG_DEBUG_INFO=y (1/10)
o Issue due to a wrong .align directive in an assembly source file which is
already fixed upstream.
* GMP library sAArch64 port review: (1/10)
o Started to review Anil work.
* Misc. (1/10)
o Various meetings.
== Next ==
* Still some time spend at university
* Continue on LRA and lib GMP.
- 2014.01 releases: (2/10)
* 4.7 ready, 4.8 needed a short daily to include our multilib patch
to support our binary releases.
* retried cbuildv2 and sent feedback. Should be mostly OK by now.
- cross-validations: (2/10)
* followup-up, bugzilla
* thinking about short term Neon intrinsics testsuite use without dejagnu
- libsanitizer (2/10)
* resumed work for aarch64
- misc (2/10): conf-call and meetings
- internal support (2/10)
* issue:
boards used for benchmarking have been off for several weeks. Pending
jobs disappeared from the list, but I got no log.
== Progress ==
* Implement fork over HW breaks support for arm native targets.
[TCWG-177] [6/10]
* ARM Process Record:
- All patches accepted and upstream.
- Spent time making changes to VFP, SIMD etc patch. [2/10]
- Configuration and Git ssh setup for gdb commit rights . [1/10]
* Submitted a new fix and worked with community for the fix. [1/10]
== Plan ==
* Continue to work on fork over HW breaks support for arm native
targets. [TCWG-177]
* Patch updates and submission to all in progress upstream submissions.
* Travel to Islamabad for Macau visa application.
== Progress ==
* Libc probes support for Aarch64.
Testing the patch for "libc" probes support to "__longjump".
Native compiling in openemebedded.
Obtained a Linaro open embedded image with system tap enabled.
Getting Assembler Error during "malloc" module linking in "glibc"
configured with --enable-systemtap.
In libc_mallopt invalid "asm", invalid expression as operand for
LIBC_PROBE call.
Cross compiling.
Tried copying header files from system tap source to SYSROOT for cross
compiling glibc. The cross compiled GCC does not recognize the header
files.
* Investigate "PGO" for Aarch64.
Started bootstap testing GCC with PGO for GCC.
Stage 1 completed. stage profile in progress.
== Plan ==
- Run EMBCC benchmark with -PGO enabled.
- Work on "glibc" probe.
== Issues ==
Waiting for feedback on "libssp" machine descriptions changes.
Misc
------
14-Jan-2014 Local holiday.
== Issues ==
* None.
== Progress ==
* Test Linaro cbuildv2.
- Write a reference script to support windows installer in cbuildv2.
- Do some basic validation work against the binaries built from cbuildv2.
* Reproduce and work out a patch for "ICE when building
linux-linaro-tracking" (lp:1268893, PR59837) .
* Test to merge Linaro local armv4t multilib patch to Linaro 4.8.
* Investigate CCMP chance by taking a Bool_ var as var != 0.
== Plans ==
* cbuildv2 validation
* Tuning ccmp performance
== Planed leaves ==
* Jan. 31 - Feb. 9.
== This week ==
- Completed merge of crypto backports 206128, 206130, 206131, 206132 and
206149 from trunk to Linaro 4.8 branch
- Out sick Friday
== Next week ==
- Build and test crypto backports
- Begin merging aarch64 crypto backport to Linaro 4.8 branch
== Future ==
== Progress ==
* Cbuildv2 fix for *_release() functions which were changing out of
the build directory but then not changing back to the builddir, which
caused problems with paths relative to the builddir. (1/10)
* TCWG-340 Enable Glibc remote testsuite integration - (7/10)
- Working with upstream community on scoping and designing remote
testsuite integration.
- Setting up arm chroot environment on chromebook with documentation
on how to make this reproduceable.
* TCWG-352 AArch64 clone is missing some CFI markup - (2/10)
- Setup aarch64 environment for testing and built static clone tests
to test the patch.
== Plan ==
* Start implementing (code) for glibc remote testsuite integration.
== Issues ==
None
