Skip to main content Accessibility help
×
Hostname: page-component-7c8c6479df-995ml Total loading time: 0 Render date: 2024-03-28T09:05:15.328Z Has data issue: false hasContentIssue false

9 - Tools for building and verifying real-time applications

Published online by Cambridge University Press:  01 June 2011

John W. McCormick
Affiliation:
University of Northern Iowa
Frank Singhoff
Affiliation:
Université de Bretagne Occidentale
Jérôme Hugues
Affiliation:
Institute for Space and Aeronautics Engineering (ISAE), Toulouse
Get access

Summary

In the previous chapters, we introduced both Ada concurrency features (tasks, protected objects, and rendezvous) and advanced features to support real-time constructs (notion of priority, protocols to bound priority inversion, and task dispatching policies). Our Ada applications do not run alone. They execute within a run-time configuration. A run-time configuration consists of the processor that executes our application and the environment in which that application operates. This environment includes memory systems, input/output devices, and operating systems.

An important early design goal of Ada was to provide a compilation system that can create from one Ada program different executables that run in an equivalent way within a wide variety of run-time configurations. With little or no modifications to the Ada code, the same program should run on a variety of platforms — from small embedded platforms, such as those based on 8-bit micro-controllers and PDAs, to single processor microcomputers, multi-core processors, and multiprocessor systems. The run-time configuration may include no operating system; may include an RTOS (real-time operating system) like VxWorksTM, LynxOSTM, ORK+, MaRTE OS, and RTEMS; or may include a complete general purpose operating system such as Linux, WindowsTM, and Mac OSTM.

In this chapter, we detail how Ada concurrency constructs are supported by the Ada run-time environment. We first introduce a generic architecture for mapping Ada constructs onto an operating system. Then, we examine three different run-times for the open-source Ada compiler GNAT.

Type
Chapter
Information
Publisher: Cambridge University Press
Print publication year: 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save book to Kindle

To save this book to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Available formats
×