@@ -383,6 +383,31 @@ universal, the list includes them just in case:
":ref:`overview-manual/development-environment:repositories, tags, and branches`"
section in the Yocto Project Overview and Concepts Manual.
+ :term:`Sysroot`
+ When cross-compiling, the target file system may be differently laid
+ out and contain different things compared to the host system. The concept
+ of a *sysroot* is directory which looks like the target filesystem and
+ can be used to cross-compile against.
+
+ In the context of cross-compiling toolchains, a *sysroot*
+ typically contains C library and kernel headers, plus the
+ compiled binaries for the C library. A *multilib toolchain*
+ can contain multiple variants of the C library binaries,
+ each compiled for a target instruction set (such as ``armv5``,
+ ``armv7`` and ``armv8``), and possibly optimized for a specific CPU core.
+
+ In the more specific context of the OpenEmbedded build System and
+ of the Yocto Project, each recipe has two sysroots:
+
+ - A *target sysroot* contains all the **target** libraries and headers
+ needed to build the recipe.
+
+ - A *native sysroot* contains all the **host** files and executables
+ needed to build the recipe.
+
+ See the :term:`SYSROOT_* <SYSROOT_DESTDIR>` variables controlling
+ how sysroots are created and stored.
+
:term:`Task`
A per-recipe unit of execution for BitBake (e.g.
:ref:`ref-tasks-compile`,