xil_interface.c build error during SIL simulation of custom interface Simulink Model

Hi,

I have a Simulink model that generates code with the following Code interfaces settings:

• Code interface packaging: Reusable function
• Pass root-level I/O as: Individual arguments

I have also customized the prototype of the model step function to look like this:

arg_d = testmodel_step(*self, cntrl_t arg_x, cntrl_t arg_y)

where arg_x and arg_y are arguments passed by value. These arguments are of type cntrl_t, which as a custom struct type imported from an external header file.

I am able to simulate the model in normal mode and build the generated code without problems. However, when I try to run a SIL simulation of my model as a SIL model block with Top model interface within a test harness model I get this error:

C:/Repos/testmodel/testmodel_ert_rtw/sil/xil_interface.c:327:7: error: invalid type argument of unary '*' (have 'cntrl_t {aka struct <anonymous>}')
       *(arg_x), *(arg_y));
       ^~~~~~~~~~~~~~~~~~~~
C:/Repos/testmodel/testmodel_ert_rtw/sil/xil_interface.c:327:29: error: invalid type argument of unary '*' (have 'cntrl_t {aka struct <anonymous>}')
       *(arg_x), *(arg_y));
                 ^~~~~~~~~~~~~~~~

My toolchain is MinGW64 gmake (64-bit Windows).

Why does the code generator for the SIL interface try to dereference the step function arguments if they are not pointers?

I checked the xil_interface.c file and the interface data are actually declared correctly as variables and not pointers.

Do I need to configure my model code generation in a special way to fix this error?

Thank you,

Nicolas.

[Binh Huynh Thanh]

I am fighting with same issue. Any one can help us

@MathWorks Support Team

[Maddi]

hello, do yo fix the error?

[azeddine]

hi, i have the same error can u give the solution