Create C call graphs from multiple source files using Cflow, producing linked PDF.
Draw call graphs for C source code using
Typeset PDF with a page per source file and clickable cross-file
cflow2dot -i hello_simple.c -f png produces:
Draw the call graph of C source code using cflow and dot. Output to LaTeX, dot, PDF, SVG, PNG, and from dot to all formats supported from it. The LaTeX output is obtained by including the SVG via Inkscape's LaTeX export functionality.
Multi-file sources are converted to multiple SVG files, one for each source. These contain links using the LaTeX package hyperref, so that after compilation one can click on the name of a function call and be taken to its definition, even if that definition is in another page of the PDF, because the function is defined in another source file than the one corresponding to the current PDF page.
Note that if a file containing the definition is missing, then the hyperref link
is omitted, so that no dead links result after compiling with LaTeX.
This might be the case of for example the file with the definitions is
available, but is not passed to
pycflow2dot, e.g., for the purpose of focusing
on a subset of the sources.
For now the LaTeX result has to be manually compiled, though this extra step will be automated in the future. Multi-SVG export will still be available, so that the results can be included in a larger document, e.g., a report.
pycflow2dot is a Python port of the Perl script
pip install pycflow2dot
You also need to install the following non-Python dependencies:
- GNU cflow:
apt install cflowon Debian GNU/Linux
port install cflowwith MacPorts
apt install graphviz
port install graphviz
pycflow2dot is licensed under the GNU GPL v3.
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
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