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Add #include directive to the C source files to include variable/function information file, and then compile the files.
That will reduce the size of object codes.

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Specifying -preinclude option is another way to include the information file.
In this case, no modification is required for C source files.

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Variable/function information file can be edited manually.
This enables users to tune the code size by enabling/disabling saddr/callt directives for global variables/functions in the information file and by adding/removing saddr/callt directives for static variables/functions in the C source files.