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Producing a Call Graph
The call graph generator takes a set of Fortran source files and produces a
call graph with optional index and called-by tables.
C files and fpp-processed files are not handled.
The call graph generator understands the following compiler options with the
-132, -dcfuns, -double,
-dusty, -encoding, -english,
-f2003, -f2008, -f95,
-fixed, -free, -help,
-indirect, -info, -kind,
-noqueue, -o, -openmp,
-Qpath, -r8, -strict95,
-thread_safe, -u, -u=sharing,
-v, -V, -w and
The “@filename” syntax may also be used, with the same
effect as the “-indirect filename” option.
The call graph is written to the file specified by the -o
option, or to standard output if no -o option is specified.
The following additional options control the output produced.
- Produce a “called-by” table showing, for each routine, the routines that
call it directly or indirectly.
This is produced at the end of the output.
- Indent by N for each level in the graph,
up to the maximum.
The default is -indent=4.
- The maximum indentation is N.
The default is -indent_max=70.
- Produce an alphabetic index listing, for each routine, the line of the call
graph where the routine first appears.
This follows the call graph itself and precedes the called-by table (when the
-calledby option is used).
- Show ENTRY point names in the call graph; without this option, calls to
an ENTRY point are shown as calls to the containing subprogram.
- If a call is via a generic identifier, show the generic identifier in the call
- Show the host scope names for calls to internal and module procedures.
- Show the class of each procedure (e.g. ‘module’, ‘internal’, ...).
- If a called procedure was renamed on a USE statement, show the renaming.