linaro-toolchain

linaro-toolchain@lists.linaro.org

10 participants
5485 discussions

[ACTIVITY] 21 - 25 January 2019

by Kugan Vivekanandarajah

== Progress == * SVE ACLE - Revised and reviewed svbic main briant svbic_z for bool * Fixing uninit warning suppression from tree-ch pass - Implemented a patch to handle this and regression test is fine. Will post for review once stage 1 opens * tree-reassoc improvements - Looking at possible data structures to best represent == Plan == * Continue with SVE ACLE * Continue with tree-reassoc

5 years, 10 months

[ACTIVITY] week ending 27 Jan 2019

by Richard Henderson

[VIRT-294 # ARMv8.3-PAuth, Pointer Authentication ] Finished up the linux-user emulation, and posted. Reviewed a patch set from Huawei also touching PAuth. [VIRT-327 # Richard's upstream QEMU work ] Reviewed riscv decodetree v4 patchset. Partial review of new target/rx patchset. It is confusing enough to make me want to tackle the variable-length decodetree problem. Reviewed softtlb resize v7 patchset; ported that to the remaining tcg backends. Part way through reviewing Peter's MPS2 patch set. r~

5 years, 10 months

[ACTIVITY] week ending Jan. 27 2019

by Alex Bennée

QEMU Tooling ([VIRT-252]) ========================= QEMU plugin support ([VIRT-280]) - started reviewing {RFC v2 00/38} Plugin support Message-Id: <20181209193749.12277-1-cota(a)braap.org> - some bitrot when applied to current tree :/ [VIRT-280] https://projects.linaro.org/browse/VIRT-280 Upstream Work ([VIRT-109]) ========================== - respin {PATCH v3 0/5} support reading some CPUID/CNT registers from user-space Message-Id: <20180625160009.17437-1-alex.bennee(a)linaro.org> - re-based [v3 branch] - I think the id reg stuff is now addressed by rth's fixes - still need to address other review comments - posted {RFC PATCH 0/3} vmbuild tweaks for BSD targets Message-Id: <20190121171543.32422-1-alex.bennee(a)linaro.org> - posted {PATCH v3 00/11} current fpu/next queue (tests & build fix) Message-Id: <20190122215016.18697-12-alex.bennee(a)linaro.org> - finally solved the weird endianess issue - merged in {PULL v2 00/11} check-softfloat, fp-bench and clang compile fixes Message-Id: <20190123114220.16972-1-alex.bennee(a)linaro.org> - posted {PATCH v1 00/14} testing/next (binfmt_misc, vm-build and BSD CI) Message-Id: <20190125140017.6092-1-alex.bennee(a)linaro.org> - also did some work on [the linux-user multiarch but it is not ready yet] - need to finish the re-work of [system test and misc arch] tests :todo - will be useful for test cases for plugins - also more test cases queued up for system tests [VIRT-109] https://projects.linaro.org/browse/VIRT-109 [v3 branch] https://github.com/stsquad/qemu/tree/misc/cnt-and-misc-reg-fixes-v3 [the linux-user multiarch but it is not ready yet] https://github.com/stsquad/qemu/tree/testing/next-with-linux-user [system test and misc arch] https://github.com/stsquad/qemu/tree/testing/enable-system-tcg-tests-v2 Completed Reviews [2/2] ======================= {PATCH 00/18} Acceptance Tests: target architecture support Message-Id: <20190117185628.21862-1-crosa(a)redhat.com> - CLOSING NOTE [2019-01-25 Fri 19:33] Still a few edge cases to work out {PATCH 0/2} contrib: gitdm: Some updates Message-Id: <1547807155-4526-1-git-send-email-aleksandar.markovic(a)rt-rk.com> - CLOSING NOTE [2019-01-25 Fri 19:33] Queued to my tree Absences ======== - Connect BKK19 (1-5th April 2019) - holiday after Connect Current Review Queue ==================== * {RFC v2 00/38} Plugin support Message-Id: <20181209193749.12277-1-cota(a)braap.org> * {RFC} arm: Allow system registers for KVM guests to be changed by QEMU code Message-Id: <20181206151401.13455-1-peter.maydell(a)linaro.org> * {Qemu-devel} {PATCH v3 0/4} tcg: support heterogenous CPU clusters Message-Id: <20190121152218.9592-1-peter.maydell(a)linaro.org> * {Qemu-devel} {PATCH RFC 00/11} Add Renesas RX archtecture Message-Id: <20190121131602.55003-1-ysato(a)users.sourceforge.jp> * {Qemu-devel} {PATCH 00/11} target/arm: Implement ARMv8.5-BTI Message-Id: <20190110121736.23448-1-richard.henderson(a)linaro.org> * {PATCH v5 00/73} per-CPU locks Message-Id: <20181213050453.9677-1-cota(a)braap.org> -- Alex Bennée

5 years, 10 months

[ACTIVITY] report week ending 25 Jan

by Peter Smith

Majority of the week spent preparing for Fosdem talk on LLD: - Built Chrome for Arm and AArch64 to investigate link time performance on non-X86 platforms -- Both gold and bfd take a considerable amount of time to produce stubs/veneers/errata fixes -- AArch64 link time is comparable to X86 - LLD gets more usage out of multithreading than gold - Studied Gold and BFD structure to compare to LLD - About half of slides written. Some minor involvement with some investigations for ClangBuiltLinux.

5 years, 10 months

[ACTIVITY] report week ending 25 Jan

by Peter Maydell

Progress: * VIRT-65 [QEMU upstream maintainership] + code review: - 'SBSA reference' model (now quite close to being in shape to go in) - RTH's BTI patchset - RTH's patchset adding TBI support to user-mode emulation + sent patches fixing the last lot of clang -Waddress-of-packed-member warnings + had another look at the prototype work I did to use Sphinx for QEMU's documentation -- updated the patchset and started looking at how to tie it into our makefiles. + sent patches fixing a handful of underdecodings in our A64 decoder, where we should have UNDEFed but did not * VIRT-268 [QEMU support for dual-core Cortex-M Musca board] + sent out v1 of the patchset implementing the SSE-200 and MPS2 AN521 model + read through the Musca-B1 docs to confirm what we can easily put into an initial implementation of a model thanks -- PMM

5 years, 10 months

[ACTIVITY] 21 - 25 January 2019

by Diana Picus

== Progress == * Out of office on Monday * [Thumb GlobalISel] Support G_SHL, G_ASHR, G_LSHR [LLVM-517] - Committed upstream * [Thumb GlobalISel] Support G_SDIV and G_UDIV [LLVM-516] - Most of the work done, ready to commit next week * LLVM 8.0 Release for ARM & AArch64 [LLVM-526] - Started a few jobs, but ran into some trouble with our containers - Will look more into it next week * Use new version of GCC on buildbots [LLVM-515] - Got it to work and committed patch; we have 2 silent bots running with GCC-7 - Will keep monitoring the bots and if they seem stable we can merge to tcwg-llvmprod next week == Plan == * Test LLVM 8.0.0 RC1 * Commit LLVM-516 * More GlobalISel * Out of office on Friday

5 years, 10 months

[ANNOUNCE] Linaro Binary Toolchain Release GCC 7.4-2019.02

by Mark Murray

The Linaro Binary Toolchain ============================ The Linaro GCC 7.4-2019.02 Release 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 packages from: (sources) http://releases.linaro.org/components/toolchain/gcc-linaro/7.4-2019.02/ (binaries) http://releases.linaro.org/components/toolchain/binaries/7.4-2019.02/ 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 7.4-2019.02 http://releases.linaro.org/components/toolchain/gcc-linaro/7.4-2019.02/ 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 (users/linaro/binutils-2_28-branch) https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob_plain;f=bin… FSF GDB 8.2 (gdb-8.2-branch) https://lists.gnu.org/archive/html/info-gnu/2018-09/msg00001.html Linaro toolchain package git branches are hosted at: http://git.linaro.org/toolchain NEWS for GCC 7 (as of Linaro GCC 7.4-2019.02) ============================================== * Runtest and gdbserver are no longer installed in the toolchain bin/ directory. Binary releases no longer include runtest at all, and gdbserver is a target tool; it is now shipped in the sysroot under usr/bin/. LDTS case #2211: gdbserver and runtest in GCC binary release are in the wrong place or have the wrong name * Gdbserver is no longer linked statically, because this is currently unsupported. Linaro bugzilla #3344: gdbserver broken in Linaro 2017.02 https://bugs.linaro.org/show_bug.cgi?id=3344 * The Linaro GCC 7.4-2019.01 snapshot added a fix for Linaro bug 4007: "Internal compiler error with -mcpu=thunderx2t99". * 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, Linaro GCC 7.2-2017.10, Linaro GCC 7.2-2018.04 and Linaro GCC 7.4-2019.01. 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/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.2-2018.04/ http://snapshots.linaro.org/components/toolchain/gcc-linaro/7.4-2019.01/ 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

5 years, 10 months

Any 4.8.5 cross compile toolchain?

by xinliang

Hi Martin and Linaro-toolchain team, We want to use 4.8.5 cross compile toolchain to build ko. But we can't find such version on the release site[1]. Is there a 4.8.5 cross compile toolchain? [1] https://releases.linaro.org/components/toolchain/gcc-linaro/ Best, Xinliang

5 years, 10 months

[ACTIVITY] Week 03

by Yvan Roux

o Still part time at university. o LLVM * Preparing machine outliner upstream submission as an RFC.

5 years, 10 months

[ACTIVITY] 14-18 January 2019

by Kugan Vivekanandarajah

== Progress == * SVE ACLE - Committed patches for * svabs, svneg, svnot and svsqrt series * svdiv series * svmulh series * svand, svorr, and sveor series * svdot series - Working on svbic and svbic_b variants * Others - Looking into tree-reassoc improvements for next stage1 - Looked into kernel plugin issue for arm == Plan == * Continue with SVE ACLE * Continue with tree-reassoc

5 years, 10 months

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