- linaro-toolchain - lists.linaro.org

[ACTIVITY] 6-10 November 2017

by Christophe Lyon

== Progress == * GCC - FDPIC: rebasing binutils, looking at ACI loop * GCC upstream validation: - iterating on qemu bug report (sanitizer's stoptheworld is not supported by qemu) - restarted upstream validations - not decided yet how to proceed wrt to sanitizers & validation under qemu: - disable sanitizers - switch to umeq instead of qemu - carry local gcc patches to disable lsan * Infrastructure: * misc (conf-calls, meetings, emails, ....) - started looking at hcqc == Next == * GCC/FDPIC * GCC upstream validation

7 years, 7 months

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[FYI] HCQC(HPC compiler quality checker) on GitHub

by Masaki Arai

Hi, I put HCQC(HPC compiler quality checker) on GitHub. URL: https://github.com/Linaro/hcqc Any comments or suggestions are very welcome. I am going to improve README.md overall and to add more test programs. I will also report the analysis results using HCQC on hpc-sig-devel. The attached PDF file was used to explain HCQC at HPC-SIG SC meeting(11/7). I think you can reproduce the results on this slide if you modify the following part of the configuration file: hcqc/config/clang-config.json "COMMAND" : "/usr/bin/clang", "VERSION" : "4.0.1", hcqc/config/gcc-config.json "COMMAND" : "/usr/bin/gcc-7", "VERSION" : "7.1.1", which you need to fix to suit your environment. [image: https://ssl.gstatic.com/ui/v1/icons/mail/images/cleardot.gif] Best regards, -- -------------------------------------- Masaki Arai

7 years, 7 months

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[ANNOUNCE] Linaro Binary Toolchain Release-Candidate GCC 7.2-2017.11-rc1

by Przemyslaw Wirkus

The Linaro Binary Toolchain ============================ The Linaro GCC 7.2-2017.11-rc1 Release-Candidate is now available. *Notice*: GCC 7.1 ABI change for arm*-*-* targets, and note for aarch64*-*-* targets >From GCC 7.1 release notes: On ARM targets (arm*-*-*), a bug introduced in GCC 5 that affects conformance to the procedure call standard (AAPCS) has been fixed. The bug affects some C++ code where class objects are passed by value to functions and could result in incorrect or inconsistent code being generated. This is an ABI change. If the option -Wpsabi is enabled (on by default) the compiler will emit a diagnostic note for code that might be affected. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728 GCC 5 and GCC 6 releases will continue to be affected by the ABI bug, since changing ABI in these releases is not practical. A warning enabled by -Wpsabi option was added to GCC 5 and GCC 6 toolchains to diagnose codebases that might be affected by the ABI bug. Additionally, this same bug was present in AArch64 backend in development versions of GCC 7. There was no releases of GCC with this bug present in AArch64 backend, therefore the release notes does not mention this. However, be advised that any code bases built with development versions of GCC 7 need to be recompiled with released version of GCC 7 to conform to ABI. For an explanation of GCC 7 series changes please see the following website: https://gcc.gnu.org/gcc-7/changes.html For help in porting to GCC 7 please see the following explanation: https://gcc.gnu.org/gcc-7/porting_to.html Download release-candidate packages from: (sources) http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.2-2017.11-rc1/ (binaries) http://snapshots.linaro.org/components/toolchain/binaries/7.2-2017.11-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/ A description of the arm and AArch64 target triples can be found at: https://collaborate.linaro.org/display/TCWGPUB/ARM+and+AArch64+Target+Tripl… 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 7.2-2017.11-rc1 http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.2-2017.11-rc1/ FSF glibc 2.25 (release/2.25) https://lists.gnu.org/archive/html/info-gnu/2017-02/msg00002.html Newlib 2.5 (newlib-2_5_0 tag) https://sourceware.org/ml/newlib/2016/msg01191.html GNU Binutils 2.28 (linaro-local/linaro_binutils-2_28-branch) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=bin… FSF GDB 8.0 (gdb-8.0-branch) https://sourceware.org/ml/gdb-announce/2017/msg00003.html Linaro toolchain package git branches are hosted at: http://git.linaro.org/toolchain NEWS for GCC 7 (as of Linaro GCC 7.2-2017.11-rc1) ================================================== * The Linaro GCC 7.2-2017.09 snapshot added float and integer moves improvement for AArch64 targets. * The Linaro GCC 7.1-2017.07 snapshot added prefetching configuration improvement for AArch64 targets and laid groundwork to enabling prefetching in more cases. * Previous MinGW hosted version of Linaro GCC C preprocessor failed to convert character set used for string, character constants, etc. This is fixed in this release. Linaro bugzilla #3040 : CC1 and cc1plus cannot convert UTF-8. https://bugs.linaro.org/show_bug.cgi?id=3040 * Performance related backports from the following snapshots have been included: Linaro GCC 7.1-2017.05, Linaro GCC 7.1-2017.06, Linaro GCC 7.1-2017.07, Linaro GCC 7.2-2017.08, Linaro GCC 7.2-2017.09 and Linaro GCC 7.2-2017.10. See the following Linaro GCC snapshots: http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.1-2017.05/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.1-2017.06/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.1-2017.07/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.2-2017.08/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.2-2017.09/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.2-2017.10/ 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

7 years, 7 months

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[ANNOUNCE] Linaro Binary Toolchain Release-Candidate GCC 6.4-2017.11-rc1

by Przemyslaw Wirkus

The Linaro Binary Toolchain ============================ The Linaro GCC 6.4-2017.11-rc1 Release-Candidate is now available. The GCC 6 Release series has significant changes from the GCC 5 release series. For an explanation of the changes please see the following website: https://gcc.gnu.org/gcc-6/changes.html For help in porting to GCC 6 please see the following explanation: https://gcc.gnu.org/gcc-6/porting_to.html Download release-candidate packages from: (sources) http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.11-rc1/ (binaries) http://snapshots.linaro.org/components/toolchain/binaries/6.4-2017.11-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/ A description of the arm and AArch64 target triples can be found at: https://collaborate.linaro.org/display/TCWGPUB/ARM+and+AArch64+Target+Tripl… 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 6.4-2017.11-rc1 http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.11-rc1/ Linaro glibc 2.23 (linaro/2.23/master) https://lists.gnu.org/archive/html/info-gnu/2016-02/msg00009.html Linaro newlib 2.4-2016.03 (linaro_2.4-branch) https://sourceware.org/ml/newlib/2016/msg00370.html Linaro binutils 2.27 (linaro-local/linaro_binutils-2_27-branch) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=bin… Linaro GDB 8.0 (gdb-8.0-branch) https://lists.gnu.org/archive/html/info-gnu/2016-10/msg00007.html Linaro toolchain package git branches are hosted at: http://git.linaro.org/toolchain NEWS for GCC 6 (as of Linaro GCC 6.4-2017.11-rc1) ================================================== * Previous MinGW hosted version of Linaro GCC C preprocessor failed to convert character set used for string, character constants, etc. This is fixed in this release. Linaro bugzilla #3040 : CC1 and cc1plus cannot convert UTF-8. https://bugs.linaro.org/show_bug.cgi?id=3040 * The Linaro GCC 6.3-2017.05 snapshot added support for -mpure-code option to ARMv7-M and ARMv8-M targets. This option ensures functions are put into sections that contain only code and no data. * The GDB version was upgraded from GDB 8.0. * Previous versions of the Linaro GCC 6 toolchain, when -static -E/—dynamic-list are passed to the linker, might create executables with dynamic sections which aren’t supported by run-time. This was exhibited in Perf Tools build system and has been fixed upstream and backported into Linaro Binutils 2.27 branch. Linaro bugzilla #2926 : Perf tools compiled statically for AArch64 with Linaro release 6.1 and later ones was not statically linked. https://bugs.linaro.org/show_bug.cgi?id=2926 * The Linaro GCC 6.3-2017.03 snapshot fixed some ILP32 issues (TLS, exception handling, …) and these have been incorporated into this release. * Previous versions of the Linaro GCC 6 toolchain were incorrectly generating floating-point code for soft-float Linux targets (arm-linux-gnueabi, and armeb-linux-gnueabi). This escaped detection until recently because the soft-float targeted toolchains were configured to use general-purpose registers for passing floating-point values (which is what you would expect for soft-float toolchains) and the intra-routine floating-code was not noticed. The issue would only show up on targets that were run on hardware that truly didn't have floating-point hardware where the kernel did not trap and emulate floating-point routines. This has been solved in Linaro GCC 6.3-2017.02-rc2 by configuring the toolchain (using --with-float=soft) to generate code without any floating-point instructions at all (-mfloat-abi=soft). https://review.linaro.org/#/c/16968/2 This change should not break compatibility between existing binaries compiled with these toolchains since the float-point parameter passing ABI is still the same. * A bug/regression in the compiler has been identified whereby the target function that is invoked when calling a "weak" function directly is the "strong" override, whereas when calling the function via a pointer the "weak" implementation is used. This would be noticed as inconsistent function invocation when invoking directly vs. invoking via function pointer. This issue only affected 32-bit arm targets. This regression has been fixed upstream and backported into Linaro GCC 6.3-2017.02-rc2. GCC PR target/78253: [5/6/7 Regression] [ARM] call weak function instead of strong when called through pointer. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78253 Linaro bugzilla #2562: ARM GCC 5.2 call weak function instead of strong when called through pointer https://bugs.linaro.org/show_bug.cgi?id=2562 * MS Windows does not support symlinks and the MS Windows archive extractor does not properly deep copy the symlink target files/directories into the symlinked directory structure when unpacking the toolchain archive. This causes problems with missing dependencies when using the Linaro mingw toolchains, as identified in the following bugs: https://bugs.linaro.org/show_bug.cgi?id=2684 https://bugs.linaro.org/show_bug.cgi?id=2192 https://bugs.linaro.org/show_bug.cgi?id=2762 This has been solved by copying files rather than using symlinks when the mingw targetted toolchain archives are created. https://review.linaro.org/#/c/16415/ * Users of Linaro's toolchain have encountered problems when building projects with Autotools (specifically libtool): https://bugs.linaro.org/show_bug.cgi?id=2764 The Linaro binary toolchain release contained files with a .la suffix as artifacts of the toolchain build process. These .la files are helper files for libtool, but unlike a gcc install tree, they are not position independent and contain full paths. Since these artifacts contain absolute paths they can actually mislead user invocation of libtool into not finding required libraries (because they reference the build tree, not the install location) and hence breaking Autotools builds. These *.la file artifacts have been removed from Linaro toolchain binaries because they are unnecessary for users. * The Linaro GCC 6.3-2017.01 snapshot added further enablement for ARMv8-M and these have been incorporated into this release. * Compiling and statically linking some SPEC2006int tests against tcmalloc have been failing due to a problem with glibc's memory allocator function overrides. This was fixed upstream: https://sourceware.org/bugzilla/show_bug.cgi?id=20432 Backported into Linaro glibc 2.23: commit 058b5a41d56b9a8860dede14d97dd443792d064b Author: Florian Weimer <fweimer(a)redhat.com> Date: Fri Aug 26 22:40:27 2016 +0200 malloc: Simplify static malloc interposition [BZ #20432] * Host binaries for x86_64 linux hosts now have symbols and debug information stripped in order to reduce the size of the toolchain binary archives. This reduces the archive size from 1.5G to 600M for aarch64-linux-gnu target with the gcc-6-branch. * The GDB version was upgraded from GDB 7.11 in the Linaro GCC 6.1-2016.08 release to GDB 7.12 in the Linaro GCC 6.2-2016.11 release. * The Linaro GCC 6.2-2016.10 snapshot added AArch32 support for ARMv8.2 and ARMv8m, as well as some AArch64 fixes for ARMv8.2, and bug fixes merged from FSF GCC 6.2. This is available in the binary toolchain as of Linaro GCC 6.2-2016.11. * Basic tuning support for the Qualcomm qdf24xx was added to the Linaro GCC 6.2-2016.10 snapshot and is available in the binary toolchain as of Linaro GCC 6.2-2016.11. * IFUNC was disabled for baremetal targets, as it was causing test-suite failures, and is presently a Linux only feature. * The gold linker was added to this binary release. * Backported malloc_lock fix into Linaro newlib 2.4. commit 2665915cfc46aa6403bb2efd473c523d3167e0cb Author: Andre Vieira (lists) <Andre.SimoesDiasVieira(a)arm.com> Date: Thu Jun 16 12:23:51 2016 +0100 Re-enable malloc_lock for newlib-nano * Backported rawmemchr patch into Linaro newlib 2.4. commit e7b1ee2ea6aa3ee1da41976407410e6202a098c5 Author: Wilco Dijkstra <Wilco.Dijkstra(a)arm.com> Date: Thu May 12 16:16:58 2016 +0000 Add rawmemchr * Backported strlen fix when using Thumb-2 and -Os -marm into Linaro newlib 2.4. commit 5c02bcc086a96b174e1b9e1445a4a1770070107a Author: Thomas Preud'homme <thomas.preudhomme(a)arm.com> Date: Wed May 11 17:18:48 2016 -0400 Fix strlen using Thumb-2 with -Os -marm * Backported fix for semihosting ARM when heapinfo not provided by debugger into Linaro newlib 2.4. commit 5c9403eaf40951f8a4f55ed65f661b485ff44be7 Author: David Hoover <spm2(a)dangerous.li> Date: Thu Apr 21 07:12:24 2016 +0200 Fixed semihosting for ARM when heapinfo not provided by debugger. * Merged latest FSF glibc release/2.23/master into Linaro glibc 2.23. * Backported __ASSUME_REQUEUE_PI check Linaro glibc 2.23 branch. commit 2d20c3bf918cd94ebd4106693adb3a5c9272baba 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) * Backported removal of __ASSUME_SET_ROBUST_LIST from Linaro glibc 2.23 branch. commit bb8f09d72756186a3d82a1f7b2adcf8bc1fbaed1 Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Mon May 16 19:01:10 2016 -0300 Remove __ASSUME_SET_ROBUST_LIST * Backported removal of __ASSUME_FUTEX_LOCK_PI from Linaro glibc 2.23 branch. commit e48b4e7fed0de06dd7832ead48bea8ebc813a204 Author: Adhemerval Zanella <adhemerval.zanella(a)linaro.org> Date: Mon May 16 10:35:25 2016 -0300 Remove __ASSUME_FUTEX_LOCK_PI * Merged latest FSF binutils-2_27-branch into linaro_binutils-2_27-branch. * The libwinpthread DLL is now copied into the host bin directory to satisfy mingw package dependencies. * Backported GNU Linker fix. commit fbc6c6763e70cb2376e2de990c7fc54c0ee44a59 Author: Nick Clifton <nickc(a)redhat.com> Date: Tue Aug 23 09:45:11 2016 +0100 Fix seg-fault in ARM linker when trying to parse a binary file. * Backported GNU Assembler fix for PR 20364 commit 5fe7ebe5ab43750abf8f490b785d99a1e598e7fd Author: Nick Clifton <nickc(a)redhat.com> Date: Fri Aug 5 10:37:57 2016 +0100 Fix the generation of alignment frags in code sections for AArch64. https://sourceware.org/bugzilla/show_bug.cgi?id=20364 * Performance related backports from the following snapshots have been included: Linaro GCC 6.1-2016.06, Linaro GCC 6.1-2016.07, Linaro GCC 6.1-2016.08, Linaro GCC 6.2-2016.09, Linaro GCC 6.2-2016.10, Linaro GCC 6.2-2016.11, Linaro GCC 6.2-2016.12, Linaro GCC 6.3-2017.01, Linaro GCC 6.3-2017.02, Linaro GCC 6.3-2017.03, Linaro GCC 6.3-2017.04, Linaro GCC 6.3-2017.05, Linaro GCC 6.3-2017.06, Linaro GCC 6.4-2017.07, Linaro GCC 6.4-2017.08, Linaro GCC 6.4-2017.09 and Linaro GCC 6.4-2017.10 . 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/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.1-2016.08/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.2-2016.09/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.2-2016.10/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.2-2016.11/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.2-2016.12/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.01/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.02/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.03/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.04/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.05/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.3-2017.06/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.07/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.08/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.09/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.10/ 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

7 years, 7 months

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Linux kernel compiling with LTO

by Yury Norov

Hi Maxim, all, Alex Matveev and I try to enable LTO optimization for Linux kernel on ARM64. The work is based on patches from Andi Kleen, and is not complete yet. Maxim recommended to work tightly with toolchain group to understand how to fix problems better - on kernel or compiler side. Links: My unfinished branch: https://github.com/norov/linux/tree/lto Andi Kleen tree: https://github.com/andikleen/linux-misc/tree/lto-411-1 Sami Tolvanen's recent work for clang: https://lkml.org/lkml/2017/11/3/606 Question we have for now: There's mrs_s/msr_s macro that doesn't work with LTO - linker complains very loudly that macro is either not declared, or declared multiple times. (To reproduce - try to build my kernel branch w/o last patch). The same (?) problem is observed with clang, and people there considered it as feature, not a bug. https://bugs.llvm.org/show_bug.cgi?id=19749 We have the fix for both clang and gcc, but it looks hacky. Maybe it worth to fix mrs/msr issue on toolchain side? Thanks, Yury

7 years, 7 months

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[ACTIVITY] 30 October - 3 November 2017

by Prathamesh Kulkarni

== This Week == * PR82808 (4/10) - Submitted patch upstream * TCWG-1234 (4/10) - Experimenting with unhoisting approach - Working through ICE's * TCWG-319 (1/10) - Rebased and locally validated patch * Misc (1/10) - Meetings == Next Week == - Continue ongoing tasks

7 years, 7 months

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Linaro GCC CrossCompiler for ARMv8 - Weak Linkage issue

by Veena & Deepak Ramaswamy

All, Using the tool chain that comes with the FVP package that I downloaded last month (Oct 2017), I'm trying to compile the Splash2 benchmark to execute on the latest FVP platform and seeing a compilation issue that goes like this (please see below) To reproduce: 1. download the benchmark from here and follow _all_ the instructions in the homepage: http://www.capsl.udel.edu/splash/Download.html 2. edit the makefile.config under /splash2/codes to use linaro toolchain and choose POSIX_BARRIER for the MACROS section (I've pasted my makefile.config here as well - you will have to modify the toolchain paths to suit your setup) 3. cd to splash2/codes/apps/ocean/contiguous_partitions 4. make (and you will see the problem) Please help. Thanks. ------------------------------------------ /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc jacobcalc.o jacobcalc2.o laplacalc.o linkup.o main.o multi.o slave1.o slave2.o subblock.o -v -O3 -pthread -D_POSIX_C_SOURCE=200112 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wdisabled-optimization -Wpadded -Winline -Wpointer-arith -Wsign-compare -Wendif-labels -lgcc -lc -lm -static -o OCEAN -lm -lc -lgcc -static Using built-in specs. COLLECT_GCC=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc COLLECT_LTO_WRAPPER=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/lto-wrapper Target: aarch64-linux-gnu Configured with: /home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/snapshots/gcc-linaro-6.2-2016.11/configure SHELL=/bin/bash --with-mpc=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu --with-mpfr=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu --with-gmp=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu --with-gnu-as --with-gnu-ld --disable-libstdcxx-pch --disable-libmudflap --with-cloog=no --with-ppl=no --with-isl=no --disable-nls --enable-c99 --enable-gnu-indirect-function --disable-multilib --with-arch=armv8-a --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --enable-multiarch --with-build-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/sysroots/aarch64-linux-gnu --enable-lto --enable-linker-build-id --enable-long-long --enable-shared --with-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu/aarch64-linux-gnu/libc --enable-languages=c,c++,fortran,lto --enable-checking=release --disable-bootstrap --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=aarch64-linux-gnu --prefix=/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/_build/builds/destdir/x86_64-unknown-linux-gnu Thread model: posix gcc version 6.2.1 20161016 (Linaro GCC 6.2-2016.11) COMPILER_PATH=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/bin/ LIBRARY_PATH=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/lib/../lib64/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/lib/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/lib/:/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/ COLLECT_GCC_OPTIONS='-v' '-O3' '-pthread' '-D' '_POSIX_C_SOURCE=200112' '-Wall' '-Wextra' '-Wmissing-prototypes' '-Wmissing-declarations' '-Wredundant-decls' '-Wdisabled-optimization' '-Wpadded' '-Winline' '-Wpointer-arith' '-Wsign-compare' '-Wendif-labels' '-static' '-o' 'OCEAN' '-static' '-march=armv8-a' '-mlittle-endian' '-mabi=lp64' /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/collect2 -plugin /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/liblto_plugin.so -plugin-opt=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/6.2.1/lto-wrapper -plugin-opt=-fresolution=/tmp/ccwD6OY1.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_eh -plugin-opt=-pass-through=-lpthread -plugin-opt=-pass-through=-lc --sysroot=/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc --build-id -Bstatic -X -EL -maarch64linux --fix-cortex-a53-835769 --fix-cortex-a53-843419 -o OCEAN /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/crt1.o /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/crti.o /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/crtbeginT.o -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1 -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/lib/../lib64 -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/../../../../aarch64-linux-gnu/lib -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/lib -L/local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib jacobcalc.o jacobcalc2.o laplacalc.o linkup.o main.o multi.o slave1.o slave2.o subblock.o -lgcc -lc -lm -lm -lc -lgcc --start-group -lgcc -lgcc_eh -lpthread -lc --end-group /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../lib/gcc/aarch64-linux-gnu/6.2.1/crtend.o /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/crtn.o /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/libpthread.a(lowlevellock.o): In function `__lll_lock_wait_private': /home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/snapshots/glibc.git~linaro~2.23~master/nptl/lowlevellock.c:29: multiple definition of `__lll_lock_wait_private' /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/libc.a(libc-lowlevellock.o):/home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/snapshots/glibc.git~linaro~2.23~master/nptl/./lowlevellock.c:29: first defined here collect2: error: ld returned 1 exit status make: *** [OCEAN] Error 1 ----------------------------------------- Makefile.config ----------------------------------------- #CC := /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc CC := /local/mnt/workspace/linaro/tools/gcc/gcc-linaro-6.2.1-2016.11-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc CFLAGS := -v -O3 -pthread -D_POSIX_C_SOURCE=200112 #CFLAGS := -g3 -pthread -D_POSIX_C_SOURCE=200112 CFLAGS := $(CFLAGS) -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wdisabled-optimization CFLAGS := $(CFLAGS) -Wpadded -Winline -Wpointer-arith -Wsign-compare -Wendif-labels CFLAGS := $(CFLAGS) -lgcc -lc -lm -static LDFLAGS := -lm -lc -lgcc -static BASEDIR := /net/dramaswa-linux/local/mnt/workspace/MT/splash2/codes MACROS := $(BASEDIR)/null_macros/c.m4.null.POSIX_BARRIER M4 := m4 -s -Ulen -Uindex x = * $(TARGET): $(OBJS) $(CC) $(OBJS) $(CFLAGS) -o $(TARGET) $(LDFLAGS) clean: rm -rf *.c *.h *.o $(TARGET) .SUFFIXES: .SUFFIXES: .o .c .C .h .H .H.h: $(M4) $(MACROS) $*.H > $*.h .C.c: $(M4) $(MACROS) $*.C > $*.c .c.o: $(CC) -c $(CFLAGS) $*.c .C.o: $(M4) $(MACROS) $*.C > $*.c $(CC) -c $(CFLAGS) $*.c

7 years, 8 months

2
5
0 0

[ACTIVITY] 30 October-3 November 2017

by Christophe Lyon

Short week (off Wed/Thu/Fri) == Progress == * GCC - FDPIC: looking at patch stacks * GCC upstream validation: - got feedback from upstream about qemu and asan interaction since recent merge: need to disable LSAN on arm. - using qemu-2.7 again enables to workaround the timeout issues observed last week - worked on improving timeout handling - restarted validations, but.... - validations on-hold since Nov 1st because of an ST-internal infrastructure problem * Infrastructure: * misc (conf-calls, meetings, emails, ....) == Next == * GCC upstream validation * GCC/ubsan * GCC/FDPIC

7 years, 8 months

1
0
0 0

[ACTIVITY] Week 44

by Yvan Roux

* 3 days off == Progress == o Linaro GCC/Validation o LLVM * Continue ramp-up * Upstream bug 32999: - Reworked the fix and validate it - Ready to be submitted upstream * Start to look at sign-extension elimination status o Misc == Plan == o Release handover (5 release, 6 and 7 RCs) o LLVM tasks (Bug 32999, sign-extension)

7 years, 8 months

1
0
0 0

[ACTIVITY] Oct 27 -- Nov 03

by Yao Qi

# Progress # * TCWG-1040, [6/10] Update my patches to remove the last use of MAX_REGISTER_SIZE. Commit clean up and refactor patches. Find more clean up patches in my tree. Keep upstreaming them. The design and implementation of removing MAX_REGISTER_SIZE becomes more and more clear. * TCWG-1125, [2/10] ARMv8 tagged address support in GDB. v2 patches were posted. No comments yet. * aarch64: PR 19806: watchpoints: false negatives + PR 20207 contiguous ones. Patch review. [1/10] * Think about the TODOs for GDB ILP32 support, write them down, and send it to Maxim. [1/10] # Plan # * TCWG-1040, TCWG-1125. -- Yao Qi

7 years, 8 months

1
0
0 0

aarch64 toolchain support NEON and vfp features

by Joy Deng

Hi , I am a SW engineer that use Linaro-toolchain to build images, Recently, I encounter some issue about enable NEON features on ARMv8 processor platform. I cat cpuinfo, can not find neon and vfp feature enable in list, the image was build with aarch-64 toolchian; While, the image built by armv7l toolchain can list "neon and vfp" in cpuinfo. I want to verify from your side, 1. if the toolchain of aarch64 version already enable" neon and vfp " in default, Because I do not find some build items that related with "neon", 2. If not supported defaultly, can you give some suggestion to enable it. Thanks & B.R. Joy Deng

7 years, 8 months

2
4
0 0

[ACTIVITY] 23 October - 27 October 2017

by Prathamesh Kulkarni

== This Week == * TCWG-1005 (4/10) - Iteration on upstream feedback and validated patch - Committed to trunk in r254140. * Reverse of TCWG-1253 transform (3/10) - Adding reverse transform for div pattern in expand * TCWG-1234 (2/10) - Experimenting with "unhoisting" approach * Misc (1/10) - Meetings == Next Week == - Continue ongoing and backlog tasks from JIRA - Go through IPA mod/ref paper

7 years, 8 months

1
0
0 0

[ACTIVITY] Week 43

by Yvan Roux

* One day off == Progress == o Linaro GCC/Validation * Releases handover - GCC 5.5 source snapshot and RC1 deployed - GCC 6 and 7 RCs under construction o LLVM * Continue ramp-up * Upstream bug 32999: - Validating a fix o Misc * Various meetings and discussions. == Plan == o Continue release handover and LLVM ramp-up

7 years, 8 months

1
0
0 0

[ACTIVITY] 23-27 October 2017

by Christophe Lyon

== Progress == * GCC - FDPIC: started reading docs and looking at patches - Neon intrinsics PR71233: duplicates will be removed from the next doc update * GCC upstream validation: - since ubsan merge with upstream, validation of arm targets is now broken. Switching back to qemu-2.7 seems to avoid qemu deadlocks, but there are still new asan test failures after the merge. - reduced the dejagnu timeout to avoid global 'make check' timeouts, but this caused some testcases to become zombies, in turn causing problems in the ST compute farm. - validation on-hold until next so that I can experiment a bit more with workarounds - reported another qemu bug - reported a couple of regressions/breakages in binutils * Infrastructure: * misc (conf-calls, meetings, emails, ....) == Next == * GCC upstream validation * GCC/ubsan * GCC/FDPIC * Short week (off Wed/Thu/Fri)

7 years, 8 months

1
0
0 0

[ACTIVITY] Oct 23 - 27

by Yao Qi

* TCWG-1040, [4/10] Update my patches to remove the last use of MAX_REGISTER_SIZE. Post the clean up and refactor patches. * TCWG-1125, [4/10] ARMv8 tagged address support in GDB. v2 patches are posted. Take care of breakpoint and watchpoint on tagged address carefully. * ILP32 GDB branch. [1/10] Branch is created! Done. * Misc, meeting, [1/10] # Plan # * Update my patches to remove the last use of MAX_REGISTER_SIZE. * GDB flexible target description conversion. Upstream patches. -- Yao Qi

7 years, 8 months

1
0
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[ANNOUNCE] Linaro Binary Toolchain Release-Candidate GCC 5.5-2017.10-rc1

by Mark Murray

[ANNOUNCE] Linaro Binary Toolchain Release-Candidate GCC 5.5-2017.10-rc1 The Linaro Binary Toolchain ============================ The Linaro GCC 5.5-2017.10-rc1 Release-Candidate 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-candidate packages from: (sources) http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.5-2017.10-rc1/ (binaries) http://snapshots.linaro.org/components/toolchain/binaries/5.5-2017.10-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/ A description of the arm and AArch64 target triples can be found at: https://collaborate.linaro.org/display/TCWGPUB/ARM+and+AArch64+Target+Tripl… 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 5.5-2017.10-rc1 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.5-2017.10-rc1/ Linaro glibc 2.21 (linaro/2.21) https://lists.gnu.org/archive/html/info-gnu/2015-02/msg00001.html Linaro newlib 2.1.0-2014.09 (linaro_newlib-branch) https://sourceware.org/ml/newlib/2013/msg01128.html Linaro binutils 2.25 (linaro_binutils-2_25-branch) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=bin… FSF GDB 7.12 (gdb-7.12-branch) https://lists.gnu.org/archive/html/info-gnu/2016-10/msg00007.html Linaro toolchain package git branches are hosted at: http://git.linaro.org/toolchain NEWS for GCC 5 (as of Linaro GCC 5.5-2017.10-rc1) ================================================== * Include GCC fix for Linaro bugzilla #2575: ICE: declaration and definition of function with __attribute__((target("thumb"))) and inlined assembler, with debug symbols enabled https://bugs.linaro.org/show_bug.cgi?id=2575 * Include GCC fix for Linaro bugzilla #2575: Internal compiler error using -mtune=cortex-a57.cortex-a53. https://bugs.linaro.org/show_bug.cgi?id=2785 * The soft-float targeted toolchains have now been configured to generate code using -mfloat-abi=soft. This makes arm-linux-gnueabi and armeb-linux-gnueabi toolchains use the “soft” FP ABI instead of “softfp”. Historically, TCWG’s toolchains provided both “soft” and “softfp” multilibs, but when switching from crosstool-ng to cbuildv2/abe (which support a single multilib) “softfp” multilib was choosen. Using “-mfloat-abi=soft” is a better choice for a gnueabi toolchain, since it doesn’t require cores to have a floating-point unit. This change should not break compatibility for toolchain users since the ABI will stay the same. The compiler and glibc libraries will not refernce FP instructions. * Include GCC fix for Linaro bugzilla #2562: ARM GCC 5.2 call weak function instead of strong when called through pointer https://bugs.linaro.org/show_bug.cgi?id=2562 * Include GCC fix for Linaro bugzilla #1925: [regression] FAIL: libgomp.fortran/retval1.f90 -O1 execution test https://bugs.linaro.org/show_bug.cgi?id=1925 * Include GCC fix for Linaro bugzilla #2185: aarch64-linux-gnu-g++ internal compiler error: in curr_insn_transform https://bugs.linaro.org/show_bug.cgi?id=2185 * Backported glibc patch to simplify static malloc interposition [BZ #20432] to correct user identified issue. commit 058b5a41d56b9a8860dede14d97dd443792d064b Author: Florian Weimer Date: Fri Aug 26 22:40:27 2016 +0200 malloc: Simplify static malloc interposition [BZ #20432] * Host binaries for x86_64 linux hosts now have symbols and debug information stripped in order to reduce the size of the toolchain binary archives. This reduces the archive size from 1.1G to 580M for aarch64-linux-gnu target with the gcc-5-branch. * Removed .la files from binary toolchain archive as these files break autotools builds. https://bugs.linaro.org/show_bug.cgi?id=2764 * The mingw toolchains are now archived using the rsync -L option in order to avoid problems with Windows extractors and symbolic links. https://review.linaro.org/#/c/16415/ This resolves the following user bugs: https://bugs.linaro.org/show_bug.cgi?id=2684 https://bugs.linaro.org/show_bug.cgi?id=2192 https://bugs.linaro.org/show_bug.cgi?id=2762 * Copy the libwinpthread DLL into the bin directories so it gets into the tmp directory before tar is run. https://review.linaro.org/#/c/13723/ * 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, Linaro GCC 5.3-2016.04, Linaro GCC 5.4-2016.06, Linaro GCC 5.4-2016.10, Linaro GCC 5.4-2016.12, Linaro GCC 5.4-2017.02, GCC 5.4-2017.04 and Linaro GCC 5.5-2017.10 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 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2016.06 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2016.10 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2016.12 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2017.02 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.4-2017.04 http://snapshots.linaro.org/components/toolchain/gcc-linaro/5.5-2017.10 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

7 years, 8 months

1
0
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Does Linaro GCC 5.4 fully support ARMv8.2-A

by Vincent Chen

Hi, We are evaluating LInaro GCC5.4 readiness for ARMv8.2-A extension support but can't find direct answer if all the features has been supported/backported. Can you point me to the answer? Thanks, Vincent ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. -----------------------------------------------------------------------------------

7 years, 8 months

2
6
0 0

[ACTIVITY] Week 42

by Yvan Roux

== Progress == o Linaro GCC/Validation * Releases handover - Monthly snapshots for GCC 6 and 7 deployed - GCC 5 final release handled by Mark * Branch merge done * Tarball and release ready to be deployed * RC1 planned for w43 o LLVM * Continue ramp-up * Working on upstream bug 32999: [ARM] Missed vpadd combine opportunity o Misc * Various meetings and discussions. == Plan == o Continue release handover and LLVM ramp-up

7 years, 8 months

1
0
0 0

[ACTIVITY] 16 - 20 October 2017

by Prathamesh Kulkarni

== This Week == * TCWG-1234 (4/10) - Patch inhibits if-conversion for couple of tests. * TCWG-1253 (3/10) - Fixed regressions with the patch * Took Monday off for recovering from travel (2/10) * Misc (1/10) - Meetings == Next Week == - TCWG-1234, TCWG-1253, TCWG-319

7 years, 8 months

1
0
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[ACTIVITY] Oct. 16 -- Oct 20

by Yao Qi

# Progress # * TCWG-1040, [4/10] Update my patches to remove the last use of MAX_REGISTER_SIZE. Before I send them upstream, I find some bits that I can improve, but finally, many things are changed. Need to get them in shape, and think about the design again. * TCWG-1125, [4/10] ARMv8 tagged address support in GDB. GDB/GDBserver needs to remove the top one byte of virtual address before pass it to kernel. Patch v1 was reviewed, and GDB internal caching needs updated for tagged address, because tagged address and non-tagged address should be mapped to the same cache entry in GDB. * GDB flexible target description conversion [1/10] Finished the conversion for tic6x and nios2. To be posted. * ILP32 GDB branch. [1/10] Got Steve Ellcey's patches, one bfd patch and one gdb patch. No GDBserver patches. Will create branch with them. # Plan # * ILP32 GDB branch. * ARMv8 tagged address support in GDB. * Update my patches to remove the last use of MAX_REGISTER_SIZE. -- Yao Qi

7 years, 8 months

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[ACTIVITY] 16-20 October 2017

by Christophe Lyon

== Progress == * GCC - FDPIC: started reading docs - testsuite cleanup * GCC upstream validation: - reported 2 bugs in qemu-armeb - noise reduction: polishing dejagnu local patches - since ubsan merge with upstream, validation of arm targets is now much longer (typically 1h30 to 6h), leading to timeouts most of the time * Infrastructure: - improved GCC bisect job/scripts - updated ABE to allow overriding cpu/fpu/tune/arch etc... * misc (conf-calls, meetings, emails, ....) == Next == * GCC upstream validation * GCC/ubsan * GCC/FDPIC

7 years, 8 months

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[ANNOUNCE] Linaro GCC 6 and 7 2017.10 source snapshots

by Mark Murray

The Linaro Toolchain Working Group (TCWG) is pleased to announce the 2017.10 snapshot of Linaro GCC 6 and 7 source packages. o The GCC 7 series introduced an ABI change for ARM targets by fixing a bug (present since GCC 5, see link below) that affects conformance to the procedure call standard (AAPCS). The bug affects some C++ code where class objects are passed by value to functions and could result in incorrect or inconsistent code being generated. If the option -Wpsabi is enabled (on by default) the compiler will emit a diagnostic note for code that might be affected by this ABI change. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728 For an explanation of the changes please see the following website: https://gcc.gnu.org/gcc-7/changes.html o Linaro GCC 7 monthly snapshot[1] is based on FSF GCC 7.2+svn253626 and includes performance improvements and bug fixes backported from mainline GCC. The contents of this snapshot will be part of the 2017.11 stable[2] quarterly release. This snapshot tarball is available on: http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.2-2017.10/ Interesting changes in this GCC source package snapshot include: * Updates to GCC 7.2+svn253626 o Linaro GCC 6 monthly snapshot[1] is based on FSF GCC 6.4+svn253668 and includes performance improvements and bug fixes backported from mainline GCC. This snapshot contents will be part of the next maintenance release. This snapshot tarball is available on: http://snapshots.linaro.org/components/toolchain/gcc-linaro/6.4-2017.10/ Interesting changes in this GCC source package snapshot include: * Updates to GCC 6.4+svn253668 o Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development. ** Linaro Toolchain Development "mailing list": http://lists.linaro.org/mailman/listinfo/linaro-toolchain ** Linaro Toolchain IRC channel on irc.freenode.net at @#linaro-tcwg@ * Bug reports should be filed in bugzilla against GCC product: http://bugs.linaro.org/enter_bug.cgi?product=GCC * Interested in commercial support? inquire at "Linaro support": mailto:support@linaro.org [1]. Source package snapshots are defined when the compiler is only put through unit-testing and full validation is not performed. [2]. Stable source package releases are defined as releases where the full Linaro Toolchain validation plan is executed.

7 years, 8 months

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[ACTIVITY] Week 41

by Yvan Roux

== Progress == o Linaro GCC/Validation * Continue releases handover - Branch merges done - Monthly snapshots about to be deployed o LLVM * Jira cards review * Checked/updated cards related to upstream BZ * Continue ramp-up o Misc * Various meetings and discussions. == Plan == o Continue release handover and LLVM ramp-up

7 years, 8 months

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[ACTIVITY] 9 - 13 October 2017

by Prathamesh Kulkarni

== This Week == * TCWG-1234 (5/10) - Posted analysis upstream with a test-case. - Have a workaround that disables hoisting when only single stmt is to be hoisted. - Investigating solution to limit distance between hoisted def. and it's uses. * TCWG-1005 (2/10) - Did changes based on upstream feedback from Honza, validated patch. - Waiting for final approval from Honza before committing. * Sick leave (2/10) * Misc (1/10) - Meetings == Next Week == - TCWG-1234, TCWG-1005

7 years, 8 months

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[ACTIVITY] 9-13 October 2017

by Christophe Lyon

== Progress == * GCC - sent final patch for deprecated IT blocks - updated PR 71233 (missing AdvSIMD intrinsics) * GCC upstream validation: - reported a couple of regressions/new failures, found bugs in qemu (need to report them) - noise reduction: will report randomly killed processes as "untested" making it easier to ignore them - buildbot discussion * Infrastructure: - improved GCC bisect job/scripts * misc (conf-calls, meetings, emails, ....) - Connect feedback (internal) == Next == * GCC upstream validation * GCC/ubsan

7 years, 8 months

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