linaro-toolchain March 2013

linaro-toolchain@lists.linaro.org

22 participants
41 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

3 years, 8 months

[ACTIVITY] 25-29 March 2013

by Venkataramanan Kumar

== Progress == - Very short work week. I was on leave last Wednesday and Thursday (27th and 28th). - Posted patch for gc-section tests for TLS and got related relocs. - Discussing with Marcus on patch I wrote for gc section tests on PLT related relocs. == Plan == - Post patch for gc section tests for PLT relocs. - Complete gc section tests for other generic cases. - Understand and evaluate gprof support work for Aarch64

12 years

[ACTIVITY] 25-28 March 2013

by Kugan

== Progress == working on http://cards.linaro.org/browse/TCWG-14 - All but 2 test cases are passing and extension elimination for the simple cases are eliminated - one of the test failure was due to bug with value range propagation pass. Have to investigate this further. - In one instance even though extensions are removed, 1 more instruction is generated (for crc) - Need to investigate it - Got the chromebook and Set up Ubuntu; boot strapping gcc now == Plan == - Start with the benchmarking - investigate the performance and VRP issue - Also start with http://cards.linaro.org/browse/TCWG-13 in parallel

12 years

[ACTIVITY] Week 13

by Yvan Roux

== Issues == * None == Progress == * Libunwind AArch64 support: - Most of the testsuite is now fine - but some fixes still needed before upstream submission. == Plan == * Libunwind AArch64 support: - Fix and submit upstream.

12 years

[ACTIVITY] 25-29 March 2013

by Christophe Lyon

== Progress == * Disable-peeling: - benchmarked locally on snowball. Observed a few regressions in spec2k. To be analyzed and confirmed with the results from cbuild. - patched cbuild to work-around a bzr bug which prevented these jobs from being spawned. * Libsanitizer: sent patch upstream. Discussion about interactions with qemu. * Revert-coalesce: spawned thought-to-be reference jobs for benchmarking. * Neon intrinsics codegen: - First analysis of sample codecs seems to indicate that gcc generates sequences of interdependent instructions where rvct manages to insert some code in between. - To be confirmed by dedicated benchmarking, probably in bare-machine mode. * Neon intrinsics testsuite: - Added support for polynomial variants (*_p8, *_p16) - Identified wrong code generated by gcc-linaro-4.7; did not check with trunk. - Transforming into a dejagnu forms will probably be a lot of work :-( * Internal activities == Next == * Disable-peeling: - analyze bench results from cbuild when available - compare with the results from my snowball * Libsanitizer: - resume investigation about isatty problem when ran under qemu. * Turnoff 64bits ops In Neon: - backport in linaro-4.8 once the process has been clarified. * Revert-coalesce: - check bench results * Neon intrinsics codegen: - perform dedicated benchmarking

12 years

[ACTIVITY] Week 13

by Will Newton

== Progress == * Booked flight for LCE. * Benchmarked and ran tests on new memcpy implementation. * Attempted but failed to get new memcpy tested on big endian (still todo). * Committed new memcpy implementation to cortex strings. * Passed new memcpy to Android team for bionic. * Submitted newlib patch for new memcpy. * Committed binutils ld-elfvsb testsuite fixes, native testsuite now green! * Further investigation of IFUNC in glibc. == Issues == * Pandaboard ES still a bit flakey, Chromebook hopefully on its way to replace it. == Plan == * Iron out issues with native binutils make check in cbuild/LAVA. * Get newlib memcpy patch committed. * Investigate testing memcpy on big endian (qemu user, models?). * IFUNC... -- Will Newton Toolchain Working Group, Linaro

12 years

[ACTIVITY] report week 13

by Peter Maydell

Progress: * qemu maintenance ** https://ci.linaro.org/jenkins/job/qemu-ltp/ now shows graphs of LTP test results for linux-user mode ** rebased qemu-linaro and got it working again (omap3 display code needed rework after upstream changes) ** investigated why Christoffer Dall's kernels weren't booting: turns out to be that vexpress now requires CONFIG_REGULATOR but doesn't force it to be set or set it in the vexpress_defconfig ** rebased/resent/pinged various in-flight patches * VIRT-4 [Guest migration support for KVM] ** VIRT-49: implement cp15 sync with kernel *** located my work on this from last year, refreshed my memory on how far I'd got and what I was planning to do -- PMM

12 years

[ACTIVITY] week 13

by Renato Golin

== Progress == * Re-installed the panda buildbot, using USB drive as bot dir * Reviewing lots of ARM patches (more than usual) * Trying Arndale again, some errors, some passes, cooler might be responsible - Got one internal error, one build error and one pass with Ubuntu kernel + patch - Trying Suse image: - It has a broken serial driver (makes things much harder) - sshd does not start by default (in conjunction with serial bug, it's a killer) - Now running on a precarious mode, hopefully enough for our needs * sqlite3 error due to VMUL.f64 while on x86_64 "long double" is f128 - sqlite3 is the best example on what NEVER to do with floating point values >:| - Sent patch, working around TILE-Gx issues == Issues == * Still a bit ill, productivity reduced * Not having a wired network on my desk wastes a LOT of my time == Plan == * Push the sqlite3 patch though * Continue fixing the 4 remaining broken tests * Continue with Arndale investigation with Christophe and Zhenqiang

12 years

GCC bootstrap on Arndale

by Renato Golin

Hi folks, I'm trying again the bootstrap of GCC on Arndale and it goes pretty well until it has to install libgcc that it just compiled. When I build first time, I get an error while installing libgcc: make[4]: Entering directory `/home/linaro/devel/gcc/build/objs/armv7l-unknown-linux-gnueabihf/libgcc' /bin/bash /home/linaro/devel/gcc/src/libgcc/../mkinstalldirs ../.././gcc (...) /bin/bash /home/linaro/devel/gcc/src/libgcc/../mkinstalldirs ../.././gcc; /usr/bin/install -c -m 644 ./libgcc_s.so.1 ../.././gcc/libgcc_s.so.1; rm -f ../.././gcc/libgcc_s.so; /usr/bin/install -c -m 644 ./libgcc_s.so ../.././gcc/libgcc_s.so Live child 0x01dec548 (install-shared) PID 4405 Reaping losing child 0x01dec548 PID 4405 make[4]: *** [install-shared] Error 1 Though, if I run that command by hand, it works... I then re-ran make and the first point there is an error is on gmp: This program built for arm-unknown-linux-gnueabihf Reading makefiles... Reading makefile `Makefile'... Reaping losing child 0x01866320 PID 4784 make[3]: *** [config.h] Error 1 Removing child 0x01866320 PID 4784 from chain. make[3]: Leaving directory `/home/linaro/devel/gcc/build/objs/gmp' Need a job token; we have children Duplicate the job FD Live child 0x00ae17f8 (all-stage1-libiberty) PID 4755 Live child 0x00be3508 (all-stage1-gmp) PID 4736 Reaping losing child 0x00be3508 PID 4736 make[2]: *** [all-stage1-gmp] Error 2 Removing child 0x00be3508 PID 4736 from chain. Released token for child 0x00be3508 (all-stage1-gmp). make[2]: *** Waiting for unfinished jobs.... Live child 0x00ae17f8 (all-stage1-libiberty) PID 4755 I can't notice anything wrong on gmp (all objects are there), other than a number of symlinks to a missing directory: gmp-mparam.h -> /home/linaro/devel/gcc/src/gmp/mpn/generic/gmp-mparam.h the directory "generic" doesn't exist, and lots of files in "mpn" also point there. Could be a red herring, though. Any ideas? cheers, --renato PS: this doesn't look like an Arndale specific bug, so we might still be able to use them for GCC bootstrapping...

12 years

[PATCH][for-danny] external-linaro-toolchain-versions: OE variables need to be properly expanded

by Denys Dmytriyenko

From: Denys Dmytriyenko <denys(a)ti.com> Otherwise eglibc version is set to UNKNOWN. Similar fix is already in master. Signed-off-by: Denys Dmytriyenko <denys(a)ti.com> --- conf/distro/include/external-linaro-toolchain-versions.inc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/conf/distro/include/external-linaro-toolchain-versions.inc b/conf/distro/include/external-linaro-toolchain-versions.inc index 6b5a6fb..8e2c68c 100644 --- a/conf/distro/include/external-linaro-toolchain-versions.inc +++ b/conf/distro/include/external-linaro-toolchain-versions.inc @@ -43,7 +43,7 @@ def elt_get_libc_version(d): if not syspath: return 'UNKNOWN' - libpath = syspath + '/libc/lib/${ELT_TARGET_SYS}/' + libpath = syspath + bb.data.expand('/libc/lib/${ELT_TARGET_SYS}/', d) if os.path.exists(libpath): for file in os.listdir(libpath): -- 1.8.1.5

12 years

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linaro-toolchain March 2013