MATLAB: Simulink Projects dependency analysis of mex file doesn’t show all required C source files

legacy code toolmexs-functionsimulinksimulink projects

I created an S-Function using the Legacy Code Tool. My S-Function C file wrapper calls my core C functions located in a different source file. Simulink Projects dependency graph shows that the S-Function C file wrapper is required by the derived mex. However, it doesn't go a level deeper to show that my source files are required by the S-Function C file wrapper. Hence, the impact analysis is incomplete. For example, if I modify my core source file, Simulink Projects is unaware that the mex file needs to be regenerated.

How can I fix this issue?

Best Answer

File an enhancement request with Mathworks. However, I don't think they want to support the Dependency analysis of C/C++ files because of the massive difficulty of resolving dependencies in the C++ language.

Related Solutions

MATLAB: P files cannot be analyzed to find their dependencies. Please add P file dependencies manually

I'd start with a web search: Ask your favorite search engine for "Matlab get dependencies of P file". You will find e.g.:

There is a chance, that getArduinoIDERootDir.p does not call any other functions, which have not been included from somewhere else. So you could simply try it: Ignore the warning and check, if the resulting executable works reliably. If not, the error message might reveal the required subfunctions. Or use one of the above mentioned methods to analyze the dependencies.

[EDITED] You can call clear all at first and after calling the code, which contains the P-file, check the list of loaded functions:

[M,X,C] = inmem('-completenames');

Care for including these files.

MATLAB: Help with creating a MEX file in MATLAB from multiple C++ Source codes

All MEX-functions need to have an entry-point named mexFunction with a specific prototype. I would recommend that you read the section Creating a Source MEX-File to help you get started.

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Related Solutions

MATLAB: P files cannot be analyzed to find their dependencies. Please add P file dependencies manually

MATLAB: Help with creating a MEX file in MATLAB from multiple C++ Source codes

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