Posted by hkswan on 2018-08-04 23:12

The flaw described here applies to both the libraries as well as CubeMx generation under C++.

1. CubeMX and the libraries are currently aligned with “C” compilation and linking (eg no name mangling).
2. For the existing libraries and generated code to WORK in both “C” and “C++” ALL of the libraries and the generated code’s include files requires that the function prototypes in the header files MUST be bracketed by the following construction to insure that the linkers will blend “C” and “C++” properly.

1. ifdef __cplusplus

extern “C” {

1. endif

// “C” compliant function prototypes

1. ifdef __cplusplus

}

1. endif // __cplusplus

This is an imperative and requires updating of cubeMX AND all libraries. With this construct added, all of the libraries and generated code will work as they do now when the remainder of the application is compiled under C++ in order to use class, inheritance and template functionality.

This will help significantly when making C++ classes portable across many embedded systems.