- linaro-toolchain - lists.linaro.org

by Yvan Roux

o one day off (2/10) == Progress == o Linaro GCC/Validation (3/10) - Continuing Backports. - Prepared branch merges - AArch64 builders stable again after Jenkins upgrade. - Investigated GDB build failure with Glibc trunk, Adhemerval patch accepted upstream. - start to merge Bkk16-buildfarm job into main buildfarm one. o Upstream GCC (1/10) - Guality fix: more investigation . o Misc (4/10) * Various meetings and discussions. * Another Internal support. == Plan == o Continue on backports, and FSF branch merge, etc

9 years

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gcc-linaro-6.1-2016.07...Big Endian and Little Endian aarch64 Options

by stimits＠comcast.net

Hi, I was able to get linaro-6.1-2016.07 compiled for both aarch64 and armhf. I also have some prebuilt 5.2 and 5.3 binaries, plus a few other 4.8 and 4.9 compilers from quite some time back. I've used these for building a Linux 3.10 kernel, and the newer linaro-6.1 fails during kernel compile. The issue seems to be the assembler does not recognize option "-EL" (all of the ARM systems I'm building for are little endian, I've not seen a big endian system). I am wondering if support for options "-EB" and "-EL" are part of the configure options? There is the generic "help" listing the "--enable-FEATURE=ARG", but I do not see a comprehensive list of features this might deal with. I'm hoping that big/little endian for armhf and aarch64 can be enabled with this. Otherwise I'm hoping to find more information on what I might need to do or change for compatibility with the "-EL" option. For reference, I have similar templates for 32-bit and 64-bit configuration (different triplet and build root). Here's one: export SRC='/home/build/linaro/gcc-linaro-snapshot-6.1-2016.07'export BUILD='/home/build/linaro/32bit'export TRIPLET=arm-linux-gnueabihfexport CLONE=/usr/local/sysroot/${TRIPLET}export VENDOR_ID=gcc-linaro-6.1-2016.07export LINUX_ARCH=armhf cd $BUILD${SRC}/configure --prefix=/usr/local/${TRIPLET}/${VENDOR_ID} --target=${TRIPLET} \ --with-build-sysroot=${CLONE} \ --enable-languages=c \ --with-sysroot=/ Thanks!

9 years

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gcc-linaro-snapshot-6.1-2016.07 Sysroot/Host Requirements Question

by stimits＠comcast.net

Hi, In a previous thread some sysroot issues were resolved, and I am able to build cross-compilers under gcc-linaro-snapshot-6.1-2016.07 for languages c, c++, and objc. My sysroot consisted of a loopback mounted dd copy of an Ubuntu 14.04 file system for aarch64. That particular file system runs on a quad core Cortex-A57, and is fully capable of compiling many different types of software (the file system is set up for development). The successful configuration was like this (configuration and compile was from an independent directory not in the source tree): export SRC='/home/build/linaro/gcc-linaro-snapshot-6.1-2016.07'export TRIPLET=aarch64-linux-gnuexport CLONE=/usr/local/sysroot/${TRIPLET}export VENDOR_ID=gcc-linaro-6.1-2016.07export LINUX_ARCH=arm64 ${SRC}/configure --prefix=/usr/local/${TRIPLET}/${VENDOR_ID} --target=${TRIPLET} \ --with-build-sysroot=${CLONE} \ --enable-languages=c,c++,objc \ --with-sysroot=/ Now I also need armhf (I must support both 32-bit and 64-bit), so I'm trying to figure out host and sysroot differences (I have been unable to get armhf to compile). The configuration is basically this variation of the above, plus some sysroot additional support: export SRC='/home/build/linaro/gcc-linaro-snapshot-6.1-2016.07'export TRIPLET=arm-linux-gnueabihfexport CLONE=/usr/local/sysroot/${TRIPLET}export VENDOR_ID=gcc-linaro-6.1-2016.07export LINUX_ARCH=armhf ${SRC}/configure --prefix=/usr/local/${TRIPLET}/${VENDOR_ID} --target=${TRIPLET} \ --with-build-sysroot=${CLONE} \ --enable-languages=c \ --with-sysroot=/ Note that for testing purposes I tried to compile only languages of c, c++, and objc, each one at a time instead of together. Errors do not differ in any way for picking of any of those three languages. I also have a complete Ubuntu 14.04 file system for armhf which is fully equipped for building of each of those languages, and is perhaps in some ways more complete as a development environment than the previously successful aarch64 file system (the sysroot runs on a quad core Cortex-A15). I tried this purely armhf file system as the sysroot to rule out incorrect multiarch support, and the error did not change. I am guessing the issue is not the sysroot, but I wanted to verify this since there may be other requirements for armhf instead of aarch64. I am at a loss though to explain why the host would be at issue since it appears all prerequisites were met and I had success with aarch64. The details of the error seem to always occur in libcc1 build. I see this in the libcc1/config.log as the failure regardless of sysroot or supported language, and only while building for armhf: configure:14569: checking for -rdynamicconfigure:14579: result: yesconfigure:14589: checking for library containing dlopenconfigure:14620: gcc -o conftest -g -O2 conftest.c >&5/tmp/ccyhVkpp.o: In function `main':/home/build/linaro/objdir/libcc1/conftest.c:38: undefined reference to `dlopen'collect2: error: ld returned 1 exit statusconfigure:14620: $? = 1configure: failed program was:| /* confdefs.h */| #define PACKAGE_NAME "libcc1"| #define PACKAGE_TARNAME "libcc1"| #define PACKAGE_VERSION "version-unused"| #define PACKAGE_STRING "libcc1 version-unused"| #define PACKAGE_BUGREPORT ""| #define PACKAGE_URL ""| #define STDC_HEADERS 1| #define HAVE_SYS_TYPES_H 1| #define HAVE_SYS_STAT_H 1| #define HAVE_STDLIB_H 1| #define HAVE_STRING_H 1| #define HAVE_MEMORY_H 1| #define HAVE_STRINGS_H 1| #define HAVE_INTTYPES_H 1| #define HAVE_STDINT_H 1| #define HAVE_UNISTD_H 1| #define __EXTENSIONS__ 1| #define _ALL_SOURCE 1| #define _GNU_SOURCE 1| #define _POSIX_PTHREAD_SEMANTICS 1| #define _TANDEM_SOURCE 1| #define HAVE_DLFCN_H 1| #define LT_OBJDIR ".libs/"| #define HAVE_DECL_BASENAME 1| /* end confdefs.h. */ Are there different host requirements when building armhf versus aarch64 which might explain why dlopen is not found? FYI, both development and other support for dlopen exists already on the system, so the failure to find dlopen is not for lack of host support (related dlopen files all seem to be present on all tested sysroots as well, both as armhf and aarch64). Is this a sysroot issue, a host issue, or a configure issue? Thanks!

9 years

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[ACTIVITY] Week 32

by Yvan Roux

== Progress == o Linaro GCC/Validation (3/10) - Backports: tracking missing dependencies. - Looked at our AArch64 builder issues, reproduced the problem. o Upstream GCC (3/10) - Found a fix for guality tests failures, analyzing all the test case which can be impacted. o Misc (4/10) * Various meetings and discussions. * Internal support on GCC == Plan == o Continue on backports, and FSF branch merge o Finalize and submit on-going patches

9 years

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stdc-predef.h failed during gcc-linaro-snapshot-6.1-2016.07 compile

by stimits＠comcast.net

Hi, I've been trying to build the c and c++ cross-compiler for triplet aarch64-linux-gnu (--target=aarch64-linux-gnu --enable-languages=c,c++) on snapshot for 6.1-2016.07, and cannot get past this: cc1: error: no include path in which to search for stdc-predef.h From what I can tell this may already be a known bug inherited from back in the days of Linaro 4.8. I tried various ways around this, such as trying to create an empty stdc-predef.h in various locations, but always ended up either not fixing the issue or breaking something else even sooner. Is there a simple way around this on the configure command line? If not, is there some recommended edit for this? Thanks!

9 years

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[ANNOUNCE] Linaro Binary Toolchain Release-Candidate GCC 6.1-2016.08-rc1

by Ryan Arnold

The Linaro Binary Toolchain ============================ The Linaro GCC 6.1-2016.08-rc1 Release-Candidate is now available. Download release-candidate packages from: http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.1-2016.08-rc1/ http://snapshots.linaro.org/components/toolchain/binaries/6.1-2016.08-rc1/ Previous snapshots and release-candidates are at: http://snapshots.linaro.org/components/toolchain/binaries/ Previous releases are at: http://releases.linaro.org/components/toolchain/binaries/ Host Requirements ================== Linaro officially supports the current and previous Ubuntu LTS releases (as of the time of this release). This does not mean that the toolchain will not work on other/older Linux distributions. See the following for the life-time of Ubuntu LTS releases. https://wiki.ubuntu.com/Releases The host system upon which the cross-compiler will run requires a minimum of glibc 2.14, because of API changes to glibc's memcpy API. https://bugs.linaro.org/show_bug.cgi?id=1869 Package Versions ================= Linaro GCC 6.1-2016.08-rc1 FSF glibc 2.23 (linaro/2.23) Linaro newlib 2.4.0-2016.03 (linaro-2.4-branch) Linaro binutils 2.26 (linaro_binutils-2_26-branch) FSF GDB 7.11 (binutils-gdb.git~gdb-7.11-branch) Linaro toolchain package git branches are hosted at: http://git.linaro.org/?a=project_list&s=toolchain%2F&btnS=Search NEWS for Linaro GCC 6.1-2016.08-rc1 ==================================== * Performance related backports from Linaro GCC 6.1-2016.06, and Linaro GCC 6.1-2016.07 have been included. See the following Linaro GCC snapshots: http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.1-2016.06/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.1-2016.07/ Contact Linaro =============== File bugs at http://bugs.linaro.org For Linaro member support see http://support.linaro.org For Linaro community support email linaro-toolchain(a)lists.linaro.org -- Ryan S. Arnold | Linaro Toolchain Engineering Manager ryan.arnold(a)linaro.org | ryanarn on #linaro-tcwg @ freenode.irc.net

9 years

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[ACTIVITY] 8 - 12 August 2016

by Diana Picus

== Progress == * Refactor SelectionDAGBuilder::visitInlineAsm [TCWG-643] [1/10] - Incorporated some review feedback and committed the patch upstream * [AArch64] Support for label arithmetic in the assembler [TCWG-710] [4/10] - Most of the support seems to be there, but the error checking is too aggressive and it rejects cases that could in fact be handled by the assembler - Trying to figure out exactly what the assembler can currently handle and how to relax the error checking accordingly * [AArch64] Keep merging consecutive stores in store sequences [TCWG-704] [2/10] - Fixing this might slow down the compiler more than the optimization is worth - Got some debug dumps on the test-suite to see how often sequences of consecutive stores show up * Misc [3/10] - Booked trip to Cambridge / Hebden Bridge - Buildbot babysitting (2 nasty selfhost failures), code reviews, LLVM Cauldron == Plan == * [AArch64] Support for label arithmetic in the assembler [TCWG-710] * [AArch64] Keep merging consecutive stores in store sequences [TCWG-704]

9 years

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[ACTIVITY] 8-12 August 2016

by Yao Qi

# Progress # * TCWG-685, GDB 7.12 release. [4/10] Triaged all aarch64 native test results. Two patches fixing heap overflow are posted. The new C++11 ABI tag makes troubles to some gdb.cp tests. Rebuild armhf toolchain for GDB arm native test. glibc failed to build due to "gperf" is not found. * AArch64 OpenOCD investigation. Done. [2/10] Write a report. In general, there was a patch for AArch64 OpenOCD, but some issues should be addressed before it can be merged to mainline. * Interview in US Embassy, and file expense. [2/10] * Misc, meetings, [2/10] # Plan # * TCWG-685, GDB 7.12 release. Build recent native armhf toolchain, and test gdb 7.12 with it. Bug fixes if needed. * Off on Wed and Thu. -- Yao Qi

9 years, 1 month

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[ACTIVITY] 8-12 August 2016

by Prathamesh Kulkarni

== This Week == * LTO (6/10) a) TCWG-666 (5/10) - Patch iterations based on suggestions from Honza and Martin - Honza approved patch, however I see some failures during bootstrap+test, submitted patch to address those. b) TCWG-548 (1/10) - Benchmarking SPEC2006 on my chromebook cancelled midway due to issues with chromebook. - Setting up hacking session on juno-01 with help from Maxim - Analyzing SPEC2k results. * TCWG-72 (1/10) - Submitted patch upstream to set NULL for sdivmod_optab entry in optabs.def * Bugs (2/10) - Committed fix for fallouts caused by previous patches - TCWG-700: Patch iterations based on upstream discussion * Misc (1/10) - Meetings == Next Week == - Holidays

9 years, 1 month

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Impact of binutils .align assembler directive parsing bug

by Dan Handley

Hi I have a question about the impact of a binutils bug to do with parsing the .align assembler directive, which may appear soon in a Linaro GCC release. The bug was first discovered by Jérôme Forissier when building ARM Trusted Firmware with a non-Linaro toolchain: https://lists.linaro.org/pipermail/linaro-toolchain/2016-June/005768.html As Jim Wilson helpfully noted later in that thread: > This patch isn't present in the binutils-2.25 that tcwg is using. The patch is present in binutils-2.26. The bug is now fixed in binutils mainline: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=7ea12e5… But this was too late to be in the binutils-2_27 tag (3rd August) I'm concerned that this bug may appear in the upcoming Linaro GCC 6 stable release, which may have a significant lifetime. Can anyone comment on the binutils version to be used in the Linaro GCC 6 release? If a binutils version containing the bug is used, is it possible for this to be patched with the fix? I need to know whether we need to provide an interim solution in ARM Trusted Firmware. Regards Dan. IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.

9 years, 1 month

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A stable version of gcc-linaro-xxx-arm-linux-gnueabi ...

by darklight wu

Hello linaro experts! I'm using the stable version(gcc-linaro-4.9-2014.11) recommended on https://wiki.linaro.org/WorkingGroups/ToolChain. I downloaded the binary fromhttps://releases.linaro.org/14.11/components/toolchain/binaries/arm-lin…. But I found there is no libstdc++.so.6. Is that library missing in that version? What I need is just a tested stable version for an industry iot project and the stability is the most important thing. And due to app back-compatibility, I can not use hardware-float feature. So any recommendation for a tested stable version of _gcc-linaro-xxx-arm-linux-gnueabi_ toolchain? Thanks! dlw

9 years, 1 month

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[ACTIVITY] Week 31

by Yvan Roux

o One day off (2/10) == Progress == o Upstream GCC (3/10) - AArch64 and ARM backend cleanup w/r to reload remaining hooks rebasing and validation on-going - Investigate guality test failures o Misc (5/10) * Various meetings and discussions. * Catch up with mail/irc/upstream dev after holidays == Plan == o Continue on-going tasks

9 years, 1 month

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[ACTIVITY] 8 - 12 August 2016

by Prathamesh Kulkarni

== This Week == * LTO (5/10) a) TCWG-666 (4/10) - RFC Patch submitted upstream - Committed r239212 to make extend_mask, extend bits based on sign. - Addressed patch reviews b) TCWG-548 (1/10) - Resolved issue with chromebook - Benchmarking with SPEC2k doesn't show much perf improvement. * Bugs (3/10) - Fixed regressions caused by my commits for PR70920 and PR71078 - PR57371: Submitted patch upstream * Misc (2/10) - UK visa application and appointment == Next Week == - Continue with TCWG-666, TCWG-72, TCWG-548

9 years, 1 month

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[ACTIVITY] 01-05 Aug 2016

by Yao Qi

# Progress # * TCWG-685, GDB 7.12 release. [5/10] Release branch is created. Finished the test and triage for aarch64 native. Tests are good. Two patches are committed. Running regression tests for cross for arm and aarch64. Upgrade the native compiler to gcc mainline, and run aarch64 tests with the new compiler. * OpenOCD for aarch64. [3/10] Investigate OpenOCD support for aarch64. There was an openocd patch for aarch64 posted in Feb 2015, but never merged. * Misc, [2/10] # Plan # * TCWG-685. * Finish OpenOCD investigation. * US visa interview on Wed. -- Yao

9 years, 1 month

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[ACTIVITY] 1 - 5 August 2016

by Diana Picus

== Progress == * LLVM 3.9.0 Release for AArch64 [TCWG-696] [3/10] - Ran the tests on one of our APM boards - Fixed an issue with some tests that are only supposed to be run for the x86 target but were accidentally running for other targets too - Wrote up some release notes for AArch64 * Enable MLx Expansion pass for non-Cortex-A9 targets [TCWG-674] [3/10] - Did a few runs of the test-suite on one of our chromebooks (Cortex-A15) - The pass is expanding > 2000 MLx instructions in the test-suite, so it looks like we can use it for evaluation * [AArch64] Keep merging consecutive stores in store sequences [TCWG-704] [2/10] - When merging stores, we always start looking from the end of the store sequence, and if the last store cannot be merged we stop; we should instead keep looking through the rest of the sequence to see if we can merge any of the previous stores - Working on a fix * Refactor SelectionDAGBuilder::visitInlineAsm [TCWG-643] [2/10] - Made it shorter by about 100 LOC; it could still use some cleanup, but I've sent the patch upstream to get an initial round of feedback == Plan == * LLVM 3.9.0 Release for AArch64 [TCWG-696] - Wait for the next release candidate * [AArch64] Keep merging consecutive stores in store sequences [TCWG-704]

9 years, 1 month

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[ACTIVITY] 1-5 August 2016

by Christophe Lyon

== Progress == * Validation - reviews in Jenkins jobs/ABE - checked that the new xenial builder works as expected * GCC - PR 67591 (ARM v8 Thumb IT blocks deprecated) * misc (conf-calls, meetings, emails, ....) - catching up after holidays - Cauldron and Connect: booked flights and hotels == Next == On holidays until Aug 22nd

9 years, 1 month

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[ACTIVITY] 25 - 29 July 2016

by Prathamesh Kulkarni

== This Week == * LTO (4/10) a) TCWG-666 (3/10) - No idea where data corruption happens in ltrans with my patch, tree value in ipa_bits gets corrupted for some reason. - Started over with widest_int representing value and mask - WIP new prototype patch: http://people.linaro.org/~prathamesh.kulkarni/ipa-bits-0_1.diff b) TCWG-548 (1/10) - Benchmarking fails on my chromebook, input/output error, no idea why. * TCWG-72 (2/10) - Rebased patch on trunk, bootstrapped on x86_64, cross tested on arm*-*-* - Addressed comments from Ramana - Strange issue with armv8l-unknown-linux-gnu which has hardware div but produced call to __aeabi_idiv, maybe I screwed sth during the build. Building from scratch doesn't reproduce the issue and patch does not regress armv8l-unknown-linux-gnueabihf. * Misc (4/10) - PR70920: Fix committed upstream. - PR71078: Fix committed upstream. - Committed r238874 to restrict pr70929-4.c for lp64 targets to avoid fallout caused by the test-case on ilp32 targets. - Submitted RFC patch to warn for dead calls, rejected due to potentially false positives. - WIP patch to fold strlen (s) eq/ne 0 to *s eq/ne 0 == Next Week == - Continue with TCWG-72, TCWG-548 and TCWG-666

9 years, 1 month

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vreinterpretq_*_p128 for converting from polynomials?

by Jeffrey Walton

Hi Everyone, I'm having trouble finding vreinterpretq_u64_p128 (and friends) to help convert a polynomial. I can't find it in arm_neon.h or arm_acle.h: $ grep p128 /usr/lib/gcc/aarch64-linux-gnu/4.9/include/arm_acle.h $ grep p128 /usr/lib/gcc/aarch64-linux-gnu/4.9/include/arm_neon.h $ grep p64 /usr/lib/gcc/aarch64-linux-gnu/4.9/include/arm_acle.h $ grep p64 /usr/lib/gcc/aarch64-linux-gnu/4.9/include/arm_neon.h vmull_p64 (poly64_t a, poly64_t b) vmull_high_p64 (poly64x2_t a, poly64x2_t b) $ An RPI-3 with ARMv8/Aarch32 and GCC 4.9.2 has it in arm_neon.h: $ cat /usr/lib/gcc/arm-linux-gnueabihf/4.9.2/include/arm_neon.h | grep -A 4 vreinterpretq_u64_p128 vreinterpretq_u64_p128 (poly128_t __a) { return (uint64x2_t)__builtin_neon_vreinterpretv2diti ((__builtin_neon_ti) __a); } Is there another file that should be included for it? Or is there something else I should be doing when I want to convert from a polynomial to a type like uint64x2_t? Thanks in advance. Jeff

9 years, 1 month

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Compile error when building an Aarch32 program on Aarch64?

by Jeffrey Walton

Hi Everyone, I have a HiKey running Linaro. I'm trying to build out a test case which tests Aarch32 on Aarch64. When I attempt to build an Aarch32 binary I experience the compile error below. The GCC folks helped me with the Aarch32 CFLAGS, so I believe they are correct. $ gcc -march=armv8-a+crc -mtune=cortex-a53 -mfpu=crypto-neon-fp-armv8 -mfloat-abi=hard test.cc -o test.exe gcc: error: unrecognized command line option ‘-mfpu=crypto-neon-fp-armv8’ gcc: error: unrecognized command line option ‘-mfloat-abi=hard’ Trying an -m32: $ gcc -march=armv8-a+crc -mtune=cortex-a53 -mfpu=crypto-neon-fp-armv8 -mfloat-abi=hard -m32 test.cc -o test.exe gcc: error: unrecognized command line option ‘-mfpu=crypto-neon-fp-armv8’ gcc: error: unrecognized command line option ‘-mfloat-abi=hard’ gcc: error: unrecognized command line option ‘-m32’ And without the -mtune: $ gcc -march=armv8-a+crc -mfpu=crypto-neon-fp-armv8 -mfloat-abi=hard test.cc -o test.exe gcc: error: unrecognized command line option ‘-mfpu=crypto-neon-fp-armv8’ gcc: error: unrecognized command line option ‘-mfloat-abi=hard’ I'm obviously suffering a disconnect. I may have more problems after the build when attempting to run the program, but I'll cross that bridge when I encounter it. How does one build an Aarch32 program on Aarch64? Thanks in advance.

9 years, 1 month

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[ACTIVITY] 25-29 July 2016

by Diana Picus

== Progress == * PR24234 - [AArch64] error in backend: fixup value out of range [TCWG-681] [5/10] - Wrong instruction size computed for TLS accesses - Accepted upstream, will commit first thing next week * [AArch64] Register all AArch64 passes [TCWG-687] [3/10] - Cleanup that should enable us to run AArch64 passes in llc (incidentally, this was useful for testing TCWG-681) - Accepted upstream, will commit first thing next week * Enable MLx Expansion pass for non-Cortex-A9 targets [TCWG-674] [2/10] - Started playing with a code snippet so I can understand the pass better == Plan == * Enable MLx Expansion pass for non-Cortex-A9 targets [TCWG-674] - Brush up the code snippet and do some runs on a Cortex-A15 to see how it behaves there * Pick up another AArch64 bug from TCWG-678

9 years, 1 month

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[ACTIVITY] 25-29 July 2016

by Yao Qi

* Off on Tue and Wed [4/10] # Progress # * TCWG-655, workaround ARM linux kernel ptrace bug on setting VFP registers. Pedro isn't happy about the workaround, and inclined to upgrade kernel. * TCWG-685, GDB 7.12 release. [4/10] Fix a bug on threads are disappeared when gdb detach. GDB gets odd task state (disk sleep) from /proc/<pid>/status, and takes some time understanding what does "disk sleep" mean for a thread to be exited. Patch is being tested. * US visa. [1/10] Get the visa photo, finish the DS-160 form, and make an interview appointment. * Misc, [1/10] # Plan # * TCWG-685, GDB 7.12 release. More testing on aarch32. * TCWG-655. -- Yao

9 years, 1 month

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[ANNOUNCE] Linaro Binary Toolchain Release GCC 5.3-2016.05

by Ryan Arnold

The Linaro Binary Toolchain ============================ The Linaro GCC 5.3-2016.05 Release is now available. Notice: All Linaro GCC 5 series toolchain users should migrate to the latest version of the Linaro GCC 5 toolchain in order to mitigate potential security exposure to CVE-2015-7547. See the NEWS section below for details. Download release packages from: http://releases.linaro.org/components/toolchain/gcc-linaro/5.3-2016.05/ http://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/ Previous snapshots and release-candidates are at: http://snapshots.linaro.org/components/toolchain/binaries/ Previous releases are at: http://releases.linaro.org/components/toolchain/binaries/ Host Requirements ================== Linaro officially supports the current and previous Ubuntu LTS releases (as of the time of this release). This does not mean that the toolchain will not work on other/older Linux distributions. See the following for the life-time of Ubuntu LTS releases. https://wiki.ubuntu.com/Releases The host system upon which the cross-compiler will run requires a minimum of glibc 2.14, because of API changes to glibc's memcpy API. https://bugs.linaro.org/show_bug.cgi?id=1869 Package Versions ================= Linaro GCC 5.3-2016.05 Linaro glibc 2.21 (linaro/2.21) Linaro newlib 2.1.0-2014.09 (linaro_newlib-branch) Linaro binutils 2.25 (linaro_binutils-2_25-branch) FSF GDB 7.10 (gdb-7.10-branch) Linaro toolchain package git branches are hosted at: http://git.linaro.org/?a=project_list&s=toolchain%2F&btnS=Search NEWS for Linaro GCC 5.3-2016.05 ================================ * Increment binutils release date to 2016_02 to reflect the most recent commit: commit ef90a4718f535cbe6345b4e7168baea7b1972abf Author: Matthew Wahab <matthew.wahab(a)arm.com> Date: Tue Jan 12 16:35:30 2016 +0000 [ARM] Support ARMv8.2 RAS extension. * Baremetal sysroot names now contain 'newlib' rather than 'glibc'. * Manifests now contain relative paths rather than absolute paths. * Now generating proper manifest files. * Fixed pi requeue support in glibc 2.21 while allowing the existing 2.21 minimum kernel default setting. This was checked into the linaro/2.21/master branch. commit a68cafa11c500d8a49a3014c43c5152859d037ae Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Tue May 17 10:16:39 2016 -0300 Add runtime check for __ASSUME_REQUEUE_PI (BZ# 18463) commit 6e5cb616b5b442ce8b2664ad673c0acf42a490ac Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Mon May 16 19:01:10 2016 -0300 Remove __ASSUME_SET_ROBUST_LIST commit 9ac61c0047295696cbcdbc26bdc174c7bd25a3c8 Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Mon May 16 10:35:25 2016 -0300 Remove __ASSUME_FUTEX_LOCK_PI * Backported support into GCC for Cortex-A32, Cortex-A35, and Cortex-R8. * Applied fix for CVE-2015-7547 - A stack-based buffer overflow in glibc's getaddrinfo() was corrected in glibc 2.23 and backported into glibc 2.21. https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html * ARMv8.1 Instruction Support - ARMv8.1 instructions support was checked into GCC and binutils. It has been backported into Linaro GCC 5.3 and Linaro binutils 2.25. * Backported -Bsymbolic-functions into Linaro binutils 2.25. * Performance related backports from Linaro GCC 5.2-2015.11, Linaro GCC 5.2-2015.12, and Linaro GCC 5.3-2016.01-1, Linaro GCC 5.3-2016.02, Linaro GCC 5.3-2016.03, and Linaro GCC 5.3-2016.04 have been included. See the following Linaro GCC snapshots: http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.2-2015.11/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2015.12/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.01-1/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.02 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.03 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.3-2016.04 Contact Linaro =============== File bugs at http://bugs.linaro.org For Linaro member support see http://support.linaro.org For Linaro community support email linaro-toolchain(a)lists.linaro.org -- Ryan S. Arnold | Linaro Toolchain Engineering Manager ryan.arnold(a)linaro.org | ryanarn on #linaro-tcwg @ freenode.irc.net T: +1-612-424-1861 <+16124241861>

9 years, 1 month

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[ACTIVITY] 18-22 July 2016

by kugan

== Progress == * IPA VRP and Early VRP - Posted patch series and revised based on review - Few patches are accepted; others are waiting for re-review * Tree VRP - Converted to use allocpool * Committed upstream tree-reassoc patch for missed optimization due to factoring out CONVERT_EXPR in phiopt. == Plan == - Follow upon remaining upstream patches - IPA VRP

9 years, 1 month

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[ACTIVITY] 18 - 22 July 2016

by Prathamesh Kulkarni

== This Week == * TCWG-666 (2/10) - Working through bootstrap and regtest failures * TCWG-548 (1/10) - Running benchmarks on chromebook (cortex-a15) * Bugs (5/10) - PR71947: Richard committed fix in vrp which solves this at -O2. - PR70920: Patch passes bootstrap+test. - Wrote patch to make ipa-pure-const pass warn for unused return values - PR71315: Verified works on trunk, exposed another bug in tree-ssa-strlen * Misc (2/10) - Recovery from sprint == Next Week == - Continue with TCWG-666 and TCWG-548 - Bugs

9 years, 1 month

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[ACTIVITY] 18-22 July 2016

by Yao Qi

# Progress # * TCWG-518, ARM range stepping patches. [2/10] The last one is approved, and all patches are committed! Need to enable range stepping and collect the performance data. Range stepping should speed up remote debugging. * TCWG-655, Workaround ARM linux kernel ptrace bug on setting VFP registers. No response from upstreams. * TCWG-333, Thumb mode function pointer assignment in GDB. [3/10] Try a different approach, still causes regressions. I'll ask upstream how to do it. * TCWG-547, Change software_single_step interface to return a vector of address. [4/10]. Patches are done, but need to figure out how to hook them together. * TCWG-685, GDB 7.12 release. [1/10] The release will be in Sep, and hopefully it can be done before the Linaro Connect. Discuss on how/when to pick up 7.12 in Linaro toolchain release. I am inclined to upgrade GDB in linaro release from 7.11 to 7.12 in fall or winter. # Plan # * Off on Tue and Wed. * GDB 7.12 release testing for ARM and AArch64. * US visa application. -- Yao

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