An approach to improving the structure of error-handling code in the linux kernel

Suman Saha, Julia Lawall, Gilles Muller

16 Citations (Scopus)

Abstract

The C language does not provide any abstractions for exception handling or other forms of error handling, leaving programmers to devise their own conventions for detecting and handling errors. The Linux coding style guidelines suggest placing error handling code at the end of each function, where it can be reached by gotos whenever an error is detected. This coding style has the advantage of putting all of the error-handling code in one place, which eases understanding and maintenance, and reduces code duplication. Nevertheless, this coding style is not always applied. In this paper, we propose an automatic program transformation that transforms error-handling code into this style. We have applied our transformation to the Linux 2.6.34 kernel source code, on which it reorganizes the error handling code of over 1800 functions, in about 25 minutes.
Original languageEnglish
Title of host publicationProceedings of the 2011 SIGPLAN/SIGBED conference on Languages, compilers and tools for embedded systems
Number of pages10
PublisherAssociation for Computing Machinery
Publication date2011
Pages41-50
ISBN (Print)978-1-4503-0555-6
DOIs
Publication statusPublished - 2011
Event2011 SIGPLAN/SIGBED Conference on Languages, Compilers and Tools for Embedded Systems - Chicago, United States
Duration: 11 Apr 201114 Feb 2012

Conference

Conference2011 SIGPLAN/SIGBED Conference on Languages, Compilers and Tools for Embedded Systems
Country/TerritoryUnited States
CityChicago
Period11/04/201114/02/2012

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