- linaro-toolchain - lists.linaro.org

by Renato Golin

== Progress == * Linux Plumbers (6/10) - Attended conference, Android/Tools/LLVM tracks - Presented 2 talks (GCC+LLVM and LLVM+ARM) * Buildbots (TCWG-76 2/10) - Made the Compiler-RT bot green! Now on to the libc++ one * Background (2/10) - Code review, meetings, discussions, etc. - Internet upgrade, re-wiring the house, building works == Plan == * Add libc++abi buildbot * Follow up on the fpu issues on Clang/asm

11 years, 2 months

1
0
0 0

Prebuilt binary download for gcc-linaro 4.8.4

by Rick Liu

Hi, In release 14.08, Linaro GCC 4.8 2014.08 is based off GCC 4.8.4+svn213802. [http://releases.linaro.org/14.08/components/toolchain/gcc-linaro/4.8] However, in toolchain/binaries, [http://releases.linaro.org/14.08/components/toolchain/binaries] I can't find the download for the prebuilt binaries for gcc-linaro-arm-linux-gnueabihf-4.8. I only found the download for 4.9 version. It seems the last 4.8 version binary existed in 2014.04 release only? [http://releases.linaro.org/14.04/components/toolchain/binaries] Where can I get the prebuilt binary of gcc-linaro-arm-linux-gnueabihf-4.8-2014.08_linux.tar.bz2? Thanks, Rick

11 years, 2 months

1
0
0 0

Re: [PATCH] ARM: Blacklist GCC 4.8.0 to GCC 4.8.2 - PR58854 (fwd)

by Nicolas Pitre

FYI. The whole thread is available here: http://article.gmane.org/gmane.linux.ports.arm.omap/119412 ---------- Forwarded message ---------- Date: Thu, 16 Oct 2014 01:18:01 +0100 From: Russell King - ARM Linux <linux(a)arm.linux.org.uk> To: Peter Hurley <peter(a)hurleysoftware.com> Cc: Nathan Lynch <Nathan_Lynch(a)mentor.com>, David Laight <David.Laight(a)ACULAB.COM>, Otavio Salvador <otavio(a)ossystems.com.br>, Linus Torvalds <torvalds(a)linux-foundation.org>, Nicolas Pitre <nico(a)fluxnic.net>, Linux OMAP Mailing List <linux-omap(a)vger.kernel.org>, linux-arm-kernel(a)lists.infradead.org Message-ID: <20141016001801.GQ12379(a)n2100.arm.linux.org.uk> Subject: Re: [PATCH] ARM: Blacklist GCC 4.8.0 to GCC 4.8.2 - PR58854 On Wed, Oct 15, 2014 at 06:18:30PM -0400, Peter Hurley wrote: > On 10/15/2014 05:56 PM, Russell King wrote: > > I was in two minds whether to include 4.8.3 as Linaro released a buggy > > toolchain which identifies itself as 4.8.3, but I decided that's also > > a distro problem. IMHO Linaro should really think about taking that > > compiler down given the seriousness of this bug and it being > > indistinguishable from the fixed stock version. > > Maybe it's unfair to blame them; Linaro just took a snapshot and > released what was there. > > If gcc is going to retain the "change release number then add all the > new features" model, some kind of prerelease indicator would help > eliminate this kind of problem. And that indicator should be both > a preprocessor define and parseable from the command line :) My comment is not to attribute blame to them, my comment is entirely on a technical level. My reasoning is that the bug is just as prevalent in userspace, though it will occur less often. Any program which uses signal handlers is a candidate for exactly the same kind of corruption, since you can receive that signal between the point that the stack pointer is modified and the function loads the parent context. Of course, there are ways around that: don't use signal handlers, or if you do, use alternate signal stacks. Neither of those can be guaranteed for any program though. So, let me put this another way: a compiler with this bug is _completely_ unsuitable for use for compiling programs for use under the Linux kernel _as well_ as the Linux kernel itself. The difference is that the Linaro compilers come with an expectation that they are usable on ARM... whereas stock versions cover a lot more and so the ARM arch is probably very small number of their users. Hence why I recommend that Linaro takes down their buggy compiler. Their 4.8.3 version should not be used *anywhere*, just the same as the stock 4.8 to 4.8.2 inclusive should also not be used anywhere on ARM either.

11 years, 2 months

2
1
0 0

[ACTIVITY] Week 41

by Charles Baylis

== Progress == Neon vld/vst [4/10] . submitted v2 of vldN_lane patch (respin of patches 1&2 only) . continued ML discussion about patches 3&4. Tried out jenkins/cbuild infrastructure [1/10] . hardest part was getting git.linaro.org/people to hold my test tree . https://wiki.linaro.org/Platform/Systems/GitServer#Creating_new_repositories . if it doesn't work, ask ITS to check you are in the git-users group . still need to find where the results go. bug 403/418 wrong line number on neon error messages [2/10] . experimented with a couple of ways to solve this bug 715 [2/10] . investigated and closed as only affects deprecated old ABI Misc [1/10] == Plan == Benchmark 2014.10 release Continue bug 403/418 work

11 years, 2 months

1
0
0 0

[ACTIVITY] 6 - 10 October 2014

by Will Newton

== Progress == * Further work on malloc single-thread optimizations (2/10, TCWG-436) - Still pending some resolution on direction from upstream * Upstream work (1/10, CARD-341) - Patch review - Applied binutils patch for missing AArch64 relocs * Further work on malloc app benchmark framework (2/10, TCWG-441) - Found a possible way to get memory statistics without hacks, should improve speed and reliability of the benchmark framework * Email, meetings, etc. (1/10) * Thursday and Friday annual leave (4/10) == Issues == * None == Plan == * Get malloc app benchmark framework into shape and committed * Figure out direction for malloc single thread optimization work -- Will Newton Toolchain Working Group, Linaro

11 years, 2 months

1
0
0 0

[ACTIVITY] 6th - 10th October

by Bernie Ogden

cbuild2 benchmarking - TCWG-360 [7/10] * Fixed/worked around some especially resilient bugs ** Mostly relate to running benchmarks through LAVA, which may be less important in the near future * Wrote a doc * Upstreamed some code that works about as I want it to Meetings/mail/etc [3/10] =Plan= cbuild2 benchmarking * Work through TODO list from connect * Tidy up behaviour on shutdown * Storage issues * (Maybe) persuade a LAVA Juno to work for benchmarking or configure spec Hopefully pick up something else

11 years, 2 months

1
0
0 0

[ACTIVITY] Week 41

by Yvan Roux

== Issues == * None. == Progress == * GCC 4.9 2014.10 (6/10) - Completed remaining backports. - Looked at some regression (1 backport reverted) * TCWG 59 : Improve libunwind AArch64 support (1/10) - Reviewed AArch64 patch. * Misc: (3/10) - Various meetings. == Plan == * FSF branch merge and 2014.10 release.

11 years, 2 months

1
0
0 0

[ACTIVITY] 6 October 2014 to 10 October 2014.

by Venkataramanan Kumar

= Progress == * Core mark benchmark and report for PGO and PGO + LTO (4/10) More profiling and collected numbers and reported. JIRA card TCWG-181 updated. Adding LTO gains in x86 and degrades in Aarch64 . * Addressed machine bring up issues, debugged and installed necessary packages for both x86 and Aarch64 (1/10) * PR 62308 - Analyzed RTL dumps. Looks to be similar issue solved in trunk. Git bisected and found the passing revision in trunk. posted my comments. waiting for feedback. (2/10) * Misc [3/10] Internal work, emails, AMD meetings and 1-1 with inline manger. 1-1 with Maxim, christophe and 1-1 with ryan Linaro status call == Plan == * Coremark benchmark and profiling for PGO and PGO + LTO. Investigate LTO degradation causes and report. * Investigate PR 63173 * Setup Cbuildv2 build in internal machine. == Issues == Experiencing Hardware connection issues and kernel instability issues with my local machines.

11 years, 2 months

1
0
0 0

[ACTIVITY] 6-10 October 2014

by Kugan

== Holiday == * Public Holiday (2/10) * Leave (4/10) == Progress == * Zero/sign extension elimination with widening types (4/10) - Started experimented with a pass for widening type. - Verified for one simple test-case. - Bootstrapping is failing and looking into it. == Plan == * Continue with Zero/sign extension pass.

11 years, 2 months

1
0
0 0

[ACTIVITY] Week 41

by Renato Golin

== Progress == * Automation Framework (CARD-1378 1/10) - Planning LAVA server for new TCWG gateway * Buildbots (TCWG-76 7/10) - Fixing Compiler-RT buildbot (from 69 to 4 failures) * Background (2/10) - Code review, meetings, discussions, etc. - Re-testing a change in inst combine that broke bots before - Reviewing CMake builder for Windows builds - Discussing clang-reformat on lld's codebase == Plan == * Continue fixing the Compiler-RT buildbot * Present 2 talks at Linux Plumbers

11 years, 2 months

1
0
0 0

[ACTIVITY] 6-10 October 2014

by Christophe Lyon

== Progress == * GCC trunk/4.9 cross-validation (CARD-647) (2/10) - trunk build for aarch64 reported to fail because libsanitizer requires an update. Pinged libsanitizers maintainers but got no answer so far. - posted testsuite patch to test if -shared is supported - managed to find how to force target-dependent -mword-relocations flags to compile testglue, without needing a testuite patch :-) * Validation (3/10) - compared cbuild2 schroot-test branch using (default) shared libs and forcing static libs Using static libs causes many unresolved and unsupported tests - compared using unix.exp and arm-linux.exp: the latter causes creates instability in the results * Neon intrinsics tests (2/10) - rebased on trunk, applied requested changes - the make-check parallelization support has changed mid-September, took some time to discover that my .exp harness was now incompatible. * Misc (3/10) - calls/meetings == Next == * GCC trunk/4.9 cross-validation - continue investigation of abi_check test * Neon intrinsic tests update, trying to take float16 types into account * cbuild2: - compare results + validation time of stable and schroot-test branches - look at backport-test script + logs

11 years, 2 months

1
0
0 0

[ACTIVITY] 29th September - 3rd October

by Bernie Ogden

cbuild2 benchmarking - TCWG-360 [7/10] * Cleaned up and upstreamed some code that works * Fixed a couple of issues raised by LAVA people ** No longer scraping the logs ** No longer assuming stable IP addresses lowlevellock.h comments - CARD-341 [1/10] * Respun based on Carlos' comments Meetings/mail/etc - [2/10] =Plan= cbuild2 benchmarking * Upstream code-with-fixes * Write a doc * Invite people to start using this thing ** Assuming that the storage questions get resolved * Work through list of tweaks Get up to speed on glibc vector math thread

11 years, 2 months

1
0
0 0

[ACTIVITY] 29 September - 3 October 2014

by Will Newton

== Progress == * Investigate a number of bugs in Linaro toolchain (2/10) - Submitted patches for cbuild build failure with eglibc and i686 - Investigated BZ #675, gdb baud rate issue. Should be fixed by switch to cbuild - AArch64 PIE support seems to be ok? * Submitted a patch to add all missing relocs from AArch64 ABI 1.0 to binutils (1/10) * Email, meetings, etc. (1/10) * More malloc single-thread optimizations (6/10, TCWG-436) - Patches submitted to the list == Issues == * None == Plan == * More atomics work * Tidy up and commit malloc app benchmarks * Out Thursday and Friday for a wedding -- Will Newton Toolchain Working Group, Linaro

11 years, 2 months

1
0
0 0

[ACTIVITY] Week 40

by Yvan Roux

== Issues == * None. == Progress == * GCC 4.9 2014.10 (6/10) - Tracked validation issues, Jenkins/Cbuild2 now fixed and usable. - Backported and validated ~30 revisions. - Commits in svn branch ongoing. * TCWG 59 : Improve libunwind AArch64 support (3/10) - Looked at upstream AArch64 patch review request. - Looked at testsuite failures * Misc: (1/10) - Various meetings. - AArch64 Libunwind upstream patch review. == Plan == * Finish backports commits in our FSF svn branch. * FSF branch merge. * Libunwind.

11 years, 2 months

1
0
0 0

[ACTIVITY] 29 September - 3 October 2014

by Kugan

== Progress == * LR register not used in leaf functions (TCWG-539) (1/10) Reviewed Jiong's changes. * bug #412 (2/10) - Seems to have been fixed but since there is not specific test-case except that it happens with spec2k gcc, need more work to be entirely sure. * AArch64 Spec2006 int regression (1/10) - Looked at bug databases and mailing list archive for more information * armv3 (bug #85 and bug #410) (2/10) - Looked at both the outstanding bug to find more information - proposed using -mno-lra for armv3 after discussion with the team * Misc (2/10) - Public holiday (2/10) - Annual Leave (2/10) == Plan == * zero/sign extension elimination with widening types == Holidays == * 06/10/2014 - Public holiday * 07/10/2014 and 07/10/2014 - Annual leave

11 years, 2 months

1
0
0 0

[Weekly] 29 SEPT - 3 OCT 2014

by Michael Collison

== This week == * TCWG-515 - Neon intrinsic testing part 1 (5/10) - Developed fix for vclz DejaGnu failure - Tested on ARM hardware * Linaro bugzilla 602 - gcc 4.7.3 compiler internal error while building hsail components (1/10) - Unable to reproduce with either Linaro 4.8 or 4.9 * Linaro Bugzilla 540 - Median of three has unneeded register moves (1/10) - Results of Triage indicate generated code has improved though still not optimal - No plans for further improvement * Misc. (1/10) - Completed ARM annual review paperwork * Out sick Friday, October 3rd (2/10) == Next week == - Full validation testing on vclz bug fix - Create patch for vclz bug fix and send to gcc-patches list - Resolve any blocking issues to patch for bugzilla 331

11 years, 2 months

1
0
0 0

[ACTIVITY] 29 September - 3 October 2014

by Venkataramanan Kumar

= Progress == * Core mark benchmark and report for PGO and PGO + LTO (2/10) Collected benchmark scores and report sent internally. Adding PGO benefits coremark. LTO seems to hurt. More runs and profiling next week. Tired few experiments with -funroll-all-loops and seems to benefit. * Misc [2/10] Internal meeting and 1-1 with Ryan and inline manger. Revisited and closed PR61442 Short week leave on 29 Sep, 2 and 3rd Oct (6/10). == Plan == * Coremark benchmark and profiling for PGO and PGO + LTO * Investigate PR 62308 * Setup Cbuildv2 build in internal machine.

11 years, 2 months

1
0
0 0

[Activity] Aug 28 - Oct 5

by Rob Savoye

== Progress == * Fixed test infrastructure bugs (TCWG 1378 - 8/10). - Installed Foundation Model on all Hetzner machines so aarch64 bare metal testing works. - Refactored all board support files to eliminate duplication to reduce maintainance headaches. Fixed ldflags so now getting good results. - Backport job is working good now. - Worked on Gerrit/Jenkins integration, with the goal of having the notifications work *after* the test and validation is done. - More work on optimizing SSH connections by reducing extraneous commands in the test framework. - Recreated stable branch from master now that results are much better. * Meetings and Misc (2/10) * Fixed National Park internal wireless network, getting access to much better bandwidth than the crappy Guest one. :-) == Plan == * Escape Yosemite, hard during a great weather window, and being the only person in my group with a job... * Continue fixing remote testing support, merge "boards" branch into master, then make it stable after more testing.

11 years, 2 months

1
0
0 0

[ACTIVITY] Week 40

by Charles Baylis

== Progress == Closed bug #405 (not a bug) NEON load/store . reworked patches not to do type-punning [9/10] . investigated alternative ways to solve poor code generation with array of vector types Started investigating NEON bugs 403, 418 [1/10] == Plan == NEON load/store - submit new patches, continue upstream discussion Try out validation infrastructure for my own patches

11 years, 2 months

1
0
0 0

[ACTIVITY] 29 September - 3 October 2014

by Christophe Lyon

== Progres == * GCC trunk/4.9 cross-validation (CARD-647) (3/10) - aarch64 address sanitizer tests currently all fail at execution under qemu because they try to reserve 50GB of memory. Tried to push the limits with no success so far. - working on fixing support for testcases generating a shared lib - newly introduced abi_check for aarch64 fails on my side, probable testsuite configuration problem. * Linaro branches - updated backports spreadsheet - reviewed backports prepared by Yvan * Validation (3/10) - manually running builds+validations to compare master and chroot branches, see the diffs between static and dynamic libs in terms of PASS/FAIL, .... * Neon intrinsics tests (1/10) - No need to comply to the GNU coding style since it's imported from and existing testsuite. - only minor changes requested - should help having the 1st subset committed soon * Misc (3/10) - calls/meetings - bugzilla admin etc..

11 years, 2 months

1
0
0 0

[ACTIVITY] Week 40

by Renato Golin

== Progress == * Automation Framework (CARD-1378 5/10) - Broken Chromebooks in the lab - Setting up AMD machine - Setting up Juno boards * Background (5/10) - Code review, meetings, discussions, etc. - Writing LPC presentations - Broken buildbots == Plan == * Spend less time fiddling with hardware... * Fix the Compiler-RT buildbot * FPU parser (PR20787) * .fpu in assembler (PR20757) * -mpfu in driver (PR20700)

11 years, 2 months

1
0
0 0

[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

11 years, 2 months

3
5
0 0

[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

11 years, 2 months

1
0
0 0

[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

11 years, 2 months

1
0
0 0

[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

11 years, 2 months

1
0
0 0

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

linaro-toolchain