[[!meta copyright="Copyright © 2010 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] [[!meta title="DSL"]] A *DSL* is a *domain-specific language* ([[!wikipedia Domain-specific_language desc="Wikipedia article"]]). Compared to general-purpose programming languages, these are a candidate for [[open_issues/formal_verification]]. DSLs are frequently used as [[IDL]]s for implementing [[RPC]] systems, but can also used for other portions of the [[kernel]], such as [[capability]] systems. This is exemplified for [[microkernel/Barrelfish]] in {{$microkernel/barrelfish#fof_plos09}}, for example.