NDLI: Capability wrangling made easy: debugging on a microkernel with valgrind

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Capability wrangling made easy: debugging on a microkernel with valgrind

Content Provider	ACM Digital Library
Author	Roitzsch, Michael Härtig, Hermann Pohle, Aaron Döbel, Björn
Abstract	Not all operating systems are created equal. Contrasting traditional monolithic kernels, there is a class of systems called microkernels more prevalent in embedded systems like cellphones, chip cards or real-time controllers. These kernels offer an abstraction very different from the classical POSIX interface. The resulting unfamiliarity for programmers complicates development and debugging. Valgrind is a well-known debugging tool that virtualizes execution to perform dynamic binary analysis. However, it assumes to run on a POSIX-like kernel and closely interacts with the system to control execution. In this paper we analyze how to adapt Valgrind to a non-POSIX environment and describe our port to the Fiasco.OC microkernel. Additionally, we analyze bug classes that are indigenous to capability systems and show how Valgrind's flexibility can be leveraged to create custom debugging tools detecting these errors.
Starting Page	3
Ending Page	12
Page Count	10
File Format	PDF
ISBN	9781605589107
DOI	10.1145/1735997.1736001
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-03-17
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Capability Microkernel L4 Valgrind
Content Type	Text
Resource Type	Article

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