>In after a short discussion was by IBM employee Alexander Egorenkov a series of patches that add support for . Several recent device generations are supported: z13 (2015), z14 (2017), and z15 (2019). When asked about using Buildroot inside IBM, there was that the image is used to build test environments, in particular .
Buildroot is a system for building complete Linux environments from source, designed with embedded systems in mind. The strengths of Buildroot include optimization for creating a compact image (a typical image takes several megabytes), support for about 20 different processor architectures, ease of cross-compilation (three commands are often enough to build an image - git clone/make nconfig/make).
The system contains more than two thousand ready-made packages, new applications are easily added using standard build systems (make/autotools/cmake).
The standard library can be uclibc, musl or glibc.
IBM Z is a mainframe series formerly known as the IBM eServer zSeries, the successor to the IBM System / 390 (the first model was released in 1990). Today, such a mainframe is hundreds of high-frequency (4-5 GHz) processor cores, tens of terabytes of RAM.
Source: opennet.ru