Visualize call tree of a C function

把戏 tags:
c
dot
foss
visualization published: true comments: true

Requirement

You want to visualize a call hierarchy of a C function.

Solution

Utilities you need are listed below:

GNU cflow
cflow2vcg
graphviz

Take 'rdbSaveBackground' (redis/rdb.c) for example:
[cc lang="bash"]
cflow --format=posix --omit-arguments --level-indent='0=\t' --level-indent='1=\t' --level-indent=start='\t' -m 'rdbSaveBackground' ~/osprojects/redis/src/rdb.c | cflow2dot | dot -Tjpg -o rdb.jpg
[/cc]

Output:

Source: unix diary

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