RESEARCH POSTER PRESENTATION DESIGN © 2012

www.PosterPresentations.com

• Name: Renuka Deshmukh

• Background:

– Degree: Master of Science, Indiana University, Bloomington

– Interest Areas: Application Development, Data Science, Productivity Tools, CodeJams

• Role@Cisco: Data Analysis and Application Development

• I also like Reading, Hiking, Music and Playing Mobile Games

• Mentors – Rahul Kalra, Shreyas Chandrashekar, Mana Palai, CB Dasgupta

INTRODUCTION

• Extensive and cumbersome debugging process.

• Large turn around time for identifying and fixing issues.

• Difficult to duplicate corner-case scenarios.

• Need to compile code every time

a change is made.

• Adding traces is time consuming.

PROBLEMS ADDRESSED

• CINT – C Interpreter

– An interpreter for C and C++ code.

– Written in C++ and covers most of ANSI C.

– CINT offers a GDB like debugging environment for interpreted programs.

– Reduces the compile and link cycle drastically facilitating rapid development.

– Portability – CINT is portable with a vast number of OS including Linux, Windows, MacOS and Solaris. All standard compilers including gcc, Cygwin-gcc, Borland-gcc, MS Visual C++, etc. are supported by CINT.

WORK FLOW

USE CASES

LEARNING

• Unix/Linux Environment

• C Language

• CINT Interpreter

• Makefile workings

• GCC environment

• Python

• Hackathon

CONCLUSIONS

• Earlier: Identifying, Debugging, Isolating and Fixing a bug takes days.

• Now:CINT provides a simple and easy

to use debugging framework.

• Embedded script can directly call

functions from the pre-compiled

library.

• No need to compile the entire code after

making changes to the CINT script.

• Minimal changes required in code to get

dump of data structures.

• Easy to manipulate data structures and follow code execution path.

• Debugging time will be reduced to hours instead of days.

ACKNOWLEDGEMENTS

I would like to thank my team for helping me with my project. I would especially like to thank my manager Vibin P Thomas, and all my mentors for guiding me all the way to the completion of my project.

ROSG – Router and Optical Switching Group

Renuka Deshmukh

Integrating XR Framework with CINT

• Dump of data structures:- By writing a simple function to return pointer to a data structure in the pre-compiled code, CINT can be used to get a dump of the data structure.

• Runtime debugging of process:- CINT can be used to directly call functions of the pre-compiled library by passing custom values, thus providing the ability of live debugging.

• Change data structure values:- Given pointer to a data structure, CINT can then be used to change values at run-time and study its impact on other values of data structure.

• Execute mini task in process context:- As CINT can directly call functions from the pre-compiled library, it can also be used to execute mini process, thus proving the facility of localizing the issue and working on it.

• No Compilation Required:- Changes to the CINT script does not require compiling the code, enabling in saving considerable time.

Figure 1: Work Process