Glow

What is Glow?

Glow is a simple tool that allows the extraction of symbols dependencies from C/C++ programs compiled using the GNU C/C++ toolchain. It has been inspired by the article "Visualize function calls with Graphviz" by M. Tim Jones.

Glow is not a production quality tool! It is mostly for my own purposes. If you want to use it you should check this site from time to time, as I may post important bug-fixes.

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Requirements

To use glow you will need:

GCC toolchain (it has to be GCC as we make use of GCC specific features)
addr2line (this tool is part of binutils)
Graphviz (if you want to postprocess call graphs generated by glow)
poster (if you want to make a deeper postprocessing)

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Download

The latest version of Glow (if published) can be obtained from here. This bundle provides a comprehensive README file that explains how to install and use Glow.

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Examples

Given below are call graphs of Glow generated by Glow. The first figure shows graph of the Glow compiled without optimisation (-O option). The next one shows the same code but compiled with -O3 option. The last graph shows Glow graph filtered using this file.

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