linaro-toolchain April 2019

linaro-toolchain@lists.linaro.org

10 participants
24 discussions

[ACTIVITY] 1-5 April 2019

by Christophe Lyon

== Progress == * FDPIC - Experimenting with stm32f469-disco * GCC upstream validation: - reported a few regressions * GCC - ubsan on bare-metal toolchain: enabling more multilibs triggered an assert in the linker. * Infra - improved reporting of some jobs == Next == FDPIC: - GCC: handle feedback on v4 patches - GDB: update patches - uclibc-ng: look at how to test fdpic mode with openadk - complete board setup Infra: - benchmarking jobs update

5 years, 7 months

[ACTIVITY] 1 - 5 April 2019

by Diana Picus

== Progress == * LLVM 7.1.0 Release for ARM & AArch64 [LLVM-546] - Uploaded RC1 for both ARM & AArch64 * [GlobalISel] Support debug info [LLVM-549] - Added support for DBG_VALUE, seems to be enough for now * [GlobalISel] Map and select G_FCONSTANT [LLVM-552] - In progress * IR SVE Reviews [LLVM-545] - More reading, discussions etc == Plan == * More of the same

5 years, 7 months

[ANNOUNCE] Arm Binary A-profile Toolchain Release GCC 8.3-2019.03

by Przemyslaw Wirkus

The Arm GNU Toolchain for the A-profile Architecture ===================================================== The Arm GNU Toolchain for the A-profile Architecture 8.3-2019.03 Release is now available. Arm is pleased to announce the Arm-built release of the pre-built GNU cross-toolchain for the A-profile cores: GCC 8.2-2019.03. This is the same toolchain that was previously built and distributed by Linaro. For the official initial announcement, see: https://community.arm.com/tools/b/blog/posts/pre-built-gnu8-cross-toolchain… For more information about the GNU Arm toolchain and to download the release packages, see the Arm Developer website at: https://developer.arm.com/tools-and-software/open-source-software/developer… For an explanation of FSF GCC 8 series changes see: https://gcc.gnu.org/gcc-8/changes.html For help in porting to GCC 8 see the following explanation: https://gcc.gnu.org/gcc-8/porting_to.html Download the release packages from: (sources) https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads (binaries) https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads Previous snapshots and release-candidates for GCC 7 and earlier are at: (sources) https://releases.linaro.org/components/toolchain/gcc-linaro/ (binaries) http://snapshots.linaro.org/components/toolchain/binaries/ Previous releases of GCC 7 and earlier are available 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 ================== * Ubuntu 14.04 LTS x86_64 or later, or RHEL 6.9 x86_64: * x86_64 hosted cross compiler for AArch64 ELF bare-metal target (x86_64-aarch64-elf). * x86_64 hosted cross compiler for AArch64 ELF bare-metal, big-endian target (x86_64-aarch64_be-elf). * x86_64 hosted cross compiler for AArch64 GNU/Linux target (x86_64-aarch64-linux-gnu). * x86_64 hosted cross compiler for AArch64 GNU/Linux big-endian target (x86_64-aarch64_be-linux-gnu). * x86_64 hosted cross compiler for AArch32 bare-metal target (x86_64-arm-eabi). * x86_64 hosted cross compiler for AArch32 target with soft float (x86_64-arm-linux-gnueabi). * x86_64 hosted cross compiler for AArch32 target with hard float (x86_64-arm-linux-gnueabihf). * Windows 7 or later, for 32 and 64 bit OS: * i686-mingw32 hosted cross compiler for AArch32 bare-metal target (i686-mingw32-arm-eabi). * i686-mingw32 hosted cross compiler for AArch64 ELF bare-metal target (i686-mingw32-aarch64-elf). Package Versions ================= GCC 8.3 https://gcc.gnu.org/gcc-8/changes.html FSF glibc 2.28 http://lists.gnu.org/archive/html/info-gnu/2018-08/msg00000.html Newlib 3.1.0 https://sourceware.org/ml/newlib/2018/msg00019.html GNU Binutils 2.32 https://lists.gnu.org/archive/html/info-gnu/2019-02/msg00000.html FSF GDB 8.2.1 https://www.gnu.org/software/gdb/download/ANNOUNCEMENT libexpat 2.2.5 https://github.com/libexpat/libexpat/blob/R_2_2_5/expat/Changes Linux Kernel v4.19 https://lkml.org/lkml/2018/10/22/184 libgmp 4.3.2 libisl 0.15 libmpfr 3.1.6 libmpc 0.8.2 libiconv 1.15 Sources provided in release source tar ball. News for GCC 8 (as of GCC 8.2-2019.01) ======================================= * Fix for "gcc-arm-8 releases contain .la files.". https://bugs.linaro.org/show_bug.cgi?id=4249 * Fix for "gcc-arm-8 mingw32 releases contain symlinks". https://bugs.linaro.org/show_bug.cgi?id=4251 * Fix for "gcc-arm-8.2-2019.01 release uses gdb-8.1 instead of gdb-8.2". https://bugs.linaro.org/show_bug.cgi?id=4253 * Fix for "ARM Toolchain use a Linux kernel headers -rc release" https://bugs.linaro.org/show_bug.cgi?id=4297 * Each binary release file now contains manifest.txt file with configuration flags for each toolchain component. * Additional Linaro ABE manifest files to build x86_64 host toolchains. * Experimental multilib support for arm-eabi toolchain (multilib a+rm-profile with newlib-nano enabled). For more details about Spectre V1 mitigation in GCC visit: https://lwn.net/Articles/759423/ Contact Arm ============ For any questions, please use the Arm Communities forums at: https://community.arm.com/tools/ Please report any bugs via the Linaro Bugzilla at: https://bugs.linaro.org/

5 years, 7 months

[ACTIVITY] week ending 31 Mar 2019

by Richard Henderson

[VIRT-263 # ARMv8.1-VHE Virtual Host Extensions ] More progress, but still crashing early. Crashes on first memory access after swapping ttbr1. Debugging kernel on guest and qemu on host simultaneously. So far, all the numbers look right but still boom. [VIRT-339 # ARMv8.5-BTI, Branch Target Identification ] Posted a v4 using the PT_NOTE, but still RFC-ish due to missing abi for new mmap flag. [VIRT-327 # Richard's upstream QEMU work ] Posted v1+v2 of CPUNegativeOffsetState. Posted v1 of a cleanup of target/riscv wrt decodetree. [Other] Upgraded the laptop from fedora 27 (out of support now), to ubuntu 18.04 lts. r~

5 years, 7 months

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linaro-toolchain April 2019