Ftrace will allow you to generate a call-graph, which will explain a program's execution flow in detail.
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README.md

Ftrace

Ftrace will allow you to generate a call-graph, which will explain a program's execution flow in detail.

Usage: ./ftrace [options] [command]

-s, --strace	Display the details of the  arguments.

-c, --counter	Display the number of timethat a function was called.

-o [value], --output=value	Write the trace output to thefile filename rather than to stderr.

--dotfile=value	Write the graph to the file.

-t, -time	Prefix each line of the tracewith the time of day.

-a [value], --align=value	Align return values in aspecific column (default column 40).