Change search
ReferencesLink to record
Permanent link

Direct link
Holistic debugging - enabling instruction set simulation for software quality assurance
Number of Authors: 1
2006 (English)Conference paper (Refereed)
Abstract [en]

We present holistic debugging, a novel method for observing execution of complex and distributed software. It builds on an instruction set simulator, which provides reproducible experiments and non-intrusive probing of state in a distributed system. Instruction set simulators, however, only provide low-level information, so a holistic debugger contains a translation framework that maps this information to higher abstraction level observation tools, such as source code debuggers. We have created Nornir, a proof-of-concept holistic debugger, built on the simulator Simics. For each observed process in the simulated system, Nornir creates an abstraction translation stack, with virtual machine translators that map machine-level storage contents (e.g. physical memory, registers) provided by Simics, to application-level data (e.g. virtual memory contents) by parsing the data structures of operating systems and virtual machines. Nornir includes a modified version of the GNU debugger (GDB), which supports non-intrusive symbolic debugging of distributed applications. Nornir's main interface is a debugger shepherd, a programmable interface that controls multiple debuggers, and allows users to coherently inspect the entire state of heterogeneous, distributed applications. It provides a robust observation platform for construction of new observation tools.

Place, publisher, year, edition, pages
2006, 1. , 8 p.
National Category
Computer and Information Science
URN: urn:nbn:se:ri:diva-13867OAI: diva2:1035150
Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS)
Available from: 2016-10-13 Created: 2016-10-13

Open Access in DiVA

fulltext(140 kB)2 downloads
File information
File name FULLTEXT01.pdfFile size 140 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Computer and Information Science

Search outside of DiVA

GoogleGoogle Scholar
Total: 2 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 15 hits
ReferencesLink to record
Permanent link

Direct link