sdk-ng/release-notes.md

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# Notes / Changes in various releases
## Zephyr SDK 0.16.0-beta1
- 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.
* Removed the unused `xtensa-intel_bdw_adsp_zephyr-elf` and
`xtensa-intel_byt_adsp_zephyr-elf` toolchain.
- gcc:
* 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.
- 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`.
## 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++ <cmath>
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 relesae.
- 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
toolchan 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.