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Notes / Changes in various releases

Zephyr SDK 0.16.5/0.16.5-1

The 0.16.5-1 release is identical to 0.16.5 except that it also includes the AArch64 Linux host binaries.

  • general:

    • Added NXP RT600 ADSP toolchain (xtensa-nxp_rt600_adsp_zephyr-elf).

  • binutils:

    • Added ELF program header rewrite segment first section address check workaround for the ELF files that contain a section whose LMA is not equal to VMA. This fixes occasional "error in private header data" error observed when running objcopy with --change-section-lma option.

  • openocd:

    • Added STM32WBA5xx device support.

  • picolibc:

    • Updated to Picolibc 1.8.6 release.

Zephyr SDK 0.16.4

  • general:

    • Added NXP ADSP 8ULP toolchain (xtensa-nxp_imx8ulp_adsp_zephyr-elf).

  • picolibc:

    • Updated to Picolibc 1.8.5 release.
    • Disabled assert_verbose option to reduce binary size.

Zephyr SDK 0.16.3

  • general:

    • Added MediaTek MT8195 toolchain (xtensa-mt8195_adsp_zephyr-elf).
    • Added NXP ADSP RT500 toolchain (nxp_adsp_rt500)
    • Added Qemu DC233C toolchain (qemu_xtensa_dc233c)
    • arc_qemu: Update to 2023.07.28 release

  • picolibc:

    • Updated to Picolibc 1.8.2 release.

Zephyr SDK 0.16.1

  • general:

    • Added Intel ACE15 MTPM toolchain (xtensa-intel_ace15_mtpm_zephyr-elf).
    • Added Intel TGL ADSP toolchain (xtensa-intel_tgl_adsp_zephyr-elf).
    • Removed Intel APL ADSP toolchain (xtensa-intel_apl_adsp_zephyr-elf).
    • Removed Intel S1000 toolchain (xtensa-intel_s1000_zephyr-elf).

  • cmake:

    • Fixed the Zephyr SDK CMake package registration failure when the setup script is run by a non-root user and the SDK is located in a directory that is not writable by the user.

  • binutils:

    • Fixed ARM MVE VCVTNE instruction misinterpretation bug.

  • openocd:

    • Disabled ARC_SEC core debugging support to work around the GDB connection timeout issue (refer to the GitHub issue #631).

  • newlib:

    • Enabled newlib-nano for all targets except Xtensa. Note that newlib-nano is disabled for the Xtensa targets because of a memset bug causing crashes (refer to the GitHub issue #660).

  • picolibc:

    • Updated to Picolibc 1.8.1 release.

Zephyr SDK 0.16.0

  • general:

    • Changed the distribution bundle archive format from tar.gz to tar.xz for Linux and macOS and from zip to 7z for Windows in order to reduce the download size.
    • Added Microblaze little endian toolchain (microblazeel-zephyr-elf).
    • Added Espressif ESP32-S3 toolchain (xtensa-espressif_esp32s3_zephyr-elf).
    • Removed the unused xtensa-intel_bdw_adsp_zephyr-elf and xtensa-intel_byt_adsp_zephyr-elf toolchain.

  • gdb:

    • Fixed GDB shell key input issues on tmux.

  • gcc:

    • Updated to GCC 12.2 release.
    • Added Picolibc and the libstdc++ compiled for it as part of the toolchain in order to allow using the C++ standard library alongside the Picolibc.
    • Fixed ARM MVE vcmpq vector-scalar internal compiler error (GCC PR107987).

  • qemu:

    • Added KVM (Kernel-based Virtual Machine) mode support for the AArch64 and x86-64 targets. This allows running the KVM-enabled Zephyr boards such as qemu_kvm_arm64.

  • picolibc:

    • Updated to Picolibc 1.8 release.

Zephyr SDK 0.15.2

  • general:

    • Fixed "ERROR: Unsupported host operating system" when running the distribution bundle setup script on the Linux distros that report the OSTYPE of linux instead of linux-gnu (e.g. Alpine, SUSE).
    • Changed the glibc version for the host tool binaries from 2.32 to 2.27 (default in Ubuntu 18.04) in order to improve compatibility with the older Linux distros.

  • gcc:

    • Fixed the missing C99 math function declarations in the libstdc++ header for the AArch64, RISC-V and x86-64 targets.
    • Disabled the compiler level support for the thread-local storage on the targets without the Zephyr-side thread-local storage support to prevent users from arbitrarily enabling it.
    • Updated the AArch64 toolchain libraries to build with the -moverride=tune=no_ldp_stp_qregs flag that disables the GCC optimisation that generates the ldp and stp instructions with the Advanced SIMD register operands for consecutive 32-byte copy operations, which can be expensive because it activates the Advanced SIMD context for a thread and can incur a massive context switching overhead due to its large size.
    • Updated the ARC toolchain libraries to build with the -mtp-regno=26 flag to ensure that the toolchain library functions do not overwrite the thread- local storage pointer register when the thread-local storage support is enabled.

Zephyr SDK 0.15.1

  • general:

    • Updated the Zephyr SDK CMake package to declare Thread Local Storage (TLS) support.

  • gcc:

    • Changed RV64I multi-libs to use the medany code model.
    • Changed the default RISC-V library to build with Zicsr and Zifencei extensions.
    • Added RISC-V rv32ifac multi-lib.
    • Added ARC hs4x_rel31 CPU variant support.
    • Disabled GOT indirection usage for weak symbol references on AArch64.

  • openocd:

    • Fixed debugger connection failure on various STM32 platforms.

Zephyr SDK 0.15.0

  • general:

    • Added ARCv3 support to the toolchains.

  • binutils:

    • Updated to Binutils 2.38 release.

  • gcc:

    • Updated to GCC 12.1 release.
    • Added multi-libs for the RISC-V base instruction sets (rv32i, rv32e, rv64i) to increase the ISA extension configuration coverage.
    • Added multi-libs for the RISC-V bit manipulation (Bitmanip) extensions.
    • Fixed incorrect ARC enter pattern instruction offset.

  • gdb:

    • Updated to GDB 12.1 release.
    • Added separate GDB executable, gdb-py, supporting Python scripting and made the default GDB executable, gdb, build without Python scripting support such that it does not depend on a specific version of libpython.
    • Removed Python incapable GDB executable, gdb-no-py, which is no longer needed because it is equivalent to the default GDB executable.
    • Disabled unneeded "mini debuginfo" support for the macOS GDB in order to remove liblzma dependency.
    • Added GDB build for ARC64 architecture.

  • newlib:

    • Disabled C99 format specifier support for the newlib "nano" variant in order to reduce its footprint. This feature will be kept disabled until the picolibc gains wider adoption.
    • Added ARCv3 support.

  • qemu:

    • Updated to QEMU 7.0 release.
    • Updated ARC QEMU to 2022.08.04 release.

  • openocd:

    • Updated OpenOCD to the commit 480d4e17727864f75dc60e22cb1a42e022cb1db3 (the latest version as of 11 June 2022).

Zephyr SDK 0.14.2

  • general:

    • Fixed minimal distribution bundle toolchain download failure on M1 Macs.

  • gcc:

    • Fixed incorrect newlib-nano include path specified by the nano.specs file.

  • newlib:

    • Enabled C99 format specifier support for the newlib-nano, which only had format specifier support up to that of the C89 standard.

  • qemu:

    • Updated ARC QEMU to 2022.04.26 release.

  • openocd:

    • Fixed Cyclone V SoC JTAG device order.

Zephyr SDK 0.14.1

  • general:

    • Introduced minimal distribution bundle that supports selective download and installation of the target toolchains.
    • Added ESP32 and ESP32-S2 Xtensa toolchains.

  • qemu:

    • Updated to QEMU 6.2 release.
    • Added I2C device emulation support for ARM targets.
    • Separated QEMU for ARC architecture from the upstream QEMU.

Zephyr SDK 0.14.0

  • general:
    • Added multi-platform toolchain support (Linux, macOS and Windows).
    • Replaced self-extracting archive (SFX) distribution format with conventional archive with a setup script that can be manually run after extraction.
    • Changed Xtensa target triplet names to include the target SoC name (e.g. xtensa-sample_controller_zephyr-elf).

Zephyr SDK 0.13.2

  • gcc:

    • Added multilibs for the RISC-V RV32E targets.
    • Disabled MIPS GP register optimisation, which is not supported by the Zephyr MIPS architecture port.

  • newlib:

    • Enabled C99 format specifier support for newlib full variant.

  • qemu:

    • Added MIPS little endian emulation
    • Update xilinx qemu to 5.1.0
    • Added Xilinx MicroBlaze little endian emulation

  • openocd:

    • Fixed missing DBG clock on STM32G0/L0.
    • Fixed image verification for ARC.

Zephyr SDK 0.13.1

  • gdb:

    • Fix ELF file format support issue on MacOS

  • newlib:

    • Fixed Xtensa malloc failure issue reported in zephyrproject-rtos/zephyr#38258.

  • gcc:

    • Pull in patches for Arm-GCC-CVE-2021-35465

  • qemu:

    • Allow setup of ARC's "virt" board memory size

Zephyr SDK 0.13.0

  • general:

    • Added support for ARC64. NOTE: GDB isn't currently supported for ARC64.
    • CI/go.sh changes to make building MacOS and CI building easier.
    • Various fixes for building/packaging on MacOS
    • Added GitHub CI workflow to build MacOS x86_64 packages

  • qemu:

    • Updated to QEMU 6.0.0
    • Added arc64 support. NOTE: this update ARC support replaces the machine (-M simhs) with (-M virt). This change will require updates to boards/arc/qemu_arc/board.cmake in Zephyr to match.
    • Pull in fix from upstream for TFM: target/arm: Use correct SP in M-profile exception
    • Pull in fixes from upstream for: hw/arm: Fix modelling of SSE-300 TCMs and SRAM

  • gcc:

    • Update to gcc 10.3 release
    • Added support for ARC64
    • Removed libgcc transactional memory clone registry support
    • Fixed incorrect build specs for libstdc++ nano variant. The libstdc++ nano variant, which is used with newlib-nano, is now built with -fno-exceptions to reduce compiled binary size.

  • binutils:

    • Updated to add support for ARC64

  • newlib:

    • Updated to add support for ARC64
    • Added multithreading support
    • Fix nano.spec file to pull in nano libraries.
    • Set -mthumb-interwork for nano newlib builds to workaround at crosstool issue.

  • crosstool-ng:

    • sync with upstream. Upstream now supports newlib-nano so we drop our Zephyr specific updates. This also pulls in gcc-10.3 and initial support for ARC64.
    • Fix stripping of newlib-nano libs

  • yocto:

    • Update to yocto 3.2.3 baseline. This is in prep to support building qemu-6.0.0

  • openocd:

    • Update to upstream 20210630 snapshot

Zephyr SDK 0.12.4

  • cmake:
    • Update for future arm/arm64 split

Zephyr SDK 0.12.3

  • gcc:
    • Backport patches from releases/gcc-10 branch for ARM. Mainly to pickup fixes for Cortex-M55/ARM-v8.1m support

Zephyr SDK 0.12.2

  • binutils:
    • Enable x86_64-pep target for EFI binary support

Zephyr SDK 0.12.1

  • General:
    • Re-enable MIPS toolchain target
    • Fix version number in cmake/zephyr/Kconfig

Zephyr SDK 0.12.0

  • General:

    • Updated to using buildkite for CI
    • Updated yocto 3.1.1
    • Build aarch64 (arm64) linux host toolchains.
    • Moved to using a zephyr fork of crosstool-ng
    • Update bossa to 1.9.1+ + SAM4L support
    • cmake: Set HOST_TOOLS_HOME based on OS_PLATFORM
    • tweaks to installer script

  • QEMU:

    • Updated to QEMU 5.1.0
    • Added icount support for ARC
    • Backport RISC-V PMP fixes from upstream qemu

  • OpenOCD:

    • Updated to 20201109 snapshot [e44539d66c8929679321704768125df9ba7d5f67]

  • newlib:

    • Updated to version 3.3
    • Updated xtensa to version 3.3 (in sync with all arch's)
    • Change default builds to be built with -O2

  • binutils:

    • updated to version 2.35.1

  • gcc:

    • Updated to version 10.2.0
    • Fix bug in libgcc builds w/regards to ARM cmse support

  • gdb:

    • Updated to version 9.2

  • xtensa:

    • remove HAL from SDK build

Zephyr SDK 0.11.4

  • General:

    • Fixed issue with cmake files not being installed in arch specific toolchain packages

  • newlib:

    • Fix setting of -DMISSING_SYSCALL_NAMES consistent on all builds
    • Set march=pentium for 32-bit x86 build

Zephyr SDK 0.11.3

  • General:

    • Added cmake package support to make it easier to find toolchain
    • Add a -[no]rc argument to install script to allow skipping update query for .zephyrrc

  • QEMU:

    • Add support for ARC
    • xilinx_qemu: Fix WFI instruction for icount mode
    • SPARC: fix issue with timer in QEMU machine AT697
    • Add support for changing CPU type in sifive_e machine.

  • GDB:

    • Added a gdb build that doesn't support python (TARGET-gdb-no-py)

      NOTE: The name of the gdb executable will change in the next major release. To maintain compatibility with previous 0.11.x we left the TARGET-gdb as the version that supports python. In 0.12.x we will change it such that TARGET-gdb will NOT support python and thus work everywhere and TARGET-gdb-py will be the version that supports python.

    • Changed python support to build against python3.8. This is an attempt to have the python support work on a larger number of distributions.

      NOTE: This may require install a python3.8 package on your system if python3.8 is not available. On fedora systems that can be accomplished by:

      sudo dnf install python38

      On ubuntu systems that can be accomplished by:

      sudo apt get install python3.8-dev

  • OpenOCD:

    • Pull in a fix for ARC SMP support

  • GCC:

    • Fix build issue with CRC32 intrinsics included from arm_acle.h on ARM compiler.

Zephyr SDK 0.11.2

  • Fixed issue with setjmp/longjmp not existing on x86 32-bit build

  • Fixed python support on GDB: NOTE: Since python support is enabled in GDB the host system needs python3.6 installed. Otherwise you might get an error like:

    arm-zephyr-eabi-gdb: error while loading shared libraries: libpython3.6m.so.1.0: cannot open shared object file: No such file or directory

    On newer fedora systems this can show up and be fixed by:

    sudo dnf install python36

  • Added support for Intel BDW and BDW Audio DSP xtensa toolchains.

  • Added support for NXP IMX8 and IMX8M Audio DSP xtensa toolchains.

  • Updated xtensa targets to GDB 8.3.1

  • Removed HAL from xtensa builds as HAL module should now be used.