Release Notes Libgen Update (Linux) for GNU ARM Embedded Toolchains v1.2020.02 ======================================================== Libgen Update for GNU ARM Embedded Toolchains is a tool used to build newlib specific libraries. Instead of a "prebuild" version of a library (a library built with a set configuration when the toolchain is created), the Libgen Update allows an user to have his own "projectbuild" library building configuration, using a custom set of options. The tool verifies the \arm-none-eabi\include\_newlib_version.h file, for the #define _NEWLIB_VERSION macro. Based on that macro, the right version of the newlib sources are deployed from the installer. This release is supporting the following GCC Launchpad ARM toolchain versions: Toolchains using newlib 2.4.0 ----------------------------- 5-2016-q1-update 5-2016-q2-update 5-2016-q3-update 6-2016-q4-major Toolchains using newlib 2.5.0 ----------------------------- 6-2016-q1-update 6-2017-q1-update 6-2017-q2-update 7-2017-q4-major Toolchains using newlib 3.0.0 ----------------------------- 7-2018-q2-update 8-2018-q4-major Toolchains using newlib 3.1.0 ----------------------------- 8-2019-q3-update 9-2019-q4-major Toolchains using newlib 3.3.0 ----------------------------- 10-2020-q2-preview 9-2020-q2-update 10-2020-q4-major CHANGES IN v1.2020.02 --------------------- This section describes the enhancements made and the issues fixed in this release. LIBGEN ------ 1. [Feature] - ARM Toolchains built with newlib 3.3.0 are now supported KNOWN ISSUES ------------ 1. The Launchpad 8 2018-q4-major toolchain showcases some issues with the objcopy utility. Until the issues are fixed, please use this toolchain instead: https://github.com/gnu-mcu-eclipse/arm-none-eabi-gcc/releases/tag/v8.2.1-1.2. Further details about this issue may be found here: https://bugs.launchpad.net/gcc-arm-embedded/+bug/1810274 2. The Optlib library is considered deprecated. We recommend using only newlib as the default building library. TOOLS INFORMATION ----------------- For free technical support, please register at https://gcc-renesas.com For your feedback and suggestions, please visit: https://gcc-renesas.com