Level-2 S-Function doesn't compile after exporting code with Embedded Coder - 'mwSize' type unknown

Hi,

I have a non-inlined Level-2 S-Function that I'm trying to integrate in my project. I want to generate the code with Embedded Coder and integrate the resulting C-Code in a broader C Project.

Before adding the S-Function-Block, this worked fine but now, it cannot compile the S-Function .c-File.

I'm getting this compilation error:

aarch64-none-elf-gcc -D_PLATFORM_WRDCU_20 -DRT -DEXT_MODE=0 -DXCP_CUSTOM_PLATFORM -D_3CORE_ -DFW_VERSION=000_Test -D_RELEASE_ -Wall -O2 -IC:/workspace/WS/SW/shared/linux/include/kk-softwatchdog -IC:/workspace/WS/SW/Control/src -IC:/workspace/WS/SW/Control/src/AlmMgt1_SOKZ -IC:/workspace/WS/SW/Control/src/enercon -IC:/workspace/WS/SW/Control/src/lib_eth -IC:/workspace/WS/SW/Control/src/MEPA1_SOKZ -IC:/workspace/WS/SW/Control/src/SL_NG-DTC -IC:/workspace/WS/SW/Control/src/unit_tests -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/CCnv1_SOKZ -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/B2B_GenPowerControl -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/contrGridCur -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/FACTS20_PC_CPU2_FrequenzMess -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/grid_analyzer -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/kalman_ceval -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/NGDTC_CU_CPU_Int -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/PlToPs_unpack -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/PQ_control -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/PsToPl_pack -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/statemachine -IC:/workspace/WS/SW/Control/src/SL_NG-DTC/slprj/sok_zynq/_sharedutils -IC:/workspace/WS/SW/Control/src/enercon/can -IC:/workspace/WS/SW/Control/src/enercon/Fehlerliste -IC:/workspace/WS/SW/Control/src/enercon/HwDriverApp -IC:/workspace/WS/SW/Control/src/enercon/System -IC:/workspace/WS/SW/Control/src/enercon/System/Ethernet -IC:/workspace/WS/SW/Control/src/enercon/System/Firmware -IC:/workspace/WS/SW/Control/src/enercon/System/Serial -IC:/workspace/WS/SW/Control/src/enercon/System/UserInterface -IC:/workspace/WS/SW/Control/simulink_include -IC:/workspace/WS/SW/shared/Common/inc -IC:/workspace/WS/SW/shared/Common/src/lib_axi -IC:/workspace/WS/SW/shared/Common/src/lib_can -IC:/workspace/WS/SW/shared/Common/src/lib_confmon -IC:/workspace/WS/SW/shared/Common/src/lib_icc -IC:/workspace/WS/SW/shared/Common/src/lib_logger -IC:/workspace/WS/SW/shared/Common/src/lib_scheduler -IC:/workspace/WS/SW/shared/Common/src/lib_sh_mem_netif -IC:/workspace/WS/SW/shared/Common/src/lib_utils -IC:/workspace/WS/SW/shared/Common/src/lib_watchdog -IC:/workspace/WS/SW/Control/submodules/ps -IC:/workspace/WS/SW/Control/submodules/ps/debug -IC:/workspace/WS/SW/Control/submodules/ps/eth_lwip -IC:/workspace/WS/SW/Control/submodules/ps/fifo -IC:/workspace/WS/SW/Control/submodules/ps/utility -IC:/workspace/WS/SW/Control/submodules/shared/drivers -IC:/workspace/WS/SW/Control/submodules/shared/drivers/axi_transfer -IC:/workspace/Models/build/Ctrl/MstrCtlCore_SOKZ -IC:/workspace/Models/build/Ctrl/slprj/sok_zynq/MstrCtlCore -IC:/workspace/Models/build/Ctrl/slprj/sok_zynq/_sharedutils -IC:/workspace/Models/build/Ctrl/slprj/matlab_includes -IC:/workspace/Models/build/integration/code/ctrl -c -fmessage-length=0 -MT"src/SL_MstrCtlCore/slprj/matlab_includes/sfunSum.o" -IC:/workspace/Models/build/_workspace/hw_platform/export/hw_platform/sw/hw_platform/APU_control/bspinclude/include -MMD -MP -MF"src/SL_MstrCtlCore/slprj/matlab_includes/sfunSum.d" -MT"src/SL_MstrCtlCore/slprj/matlab_includes/sfunSum.d" -o "src/SL_MstrCtlCore/slprj/matlab_includes/sfunSum.o" "C:/workspace/Models/build/Ctrl/slprj/matlab_includes/sfunSum.c"
In file included from C:/workspace/Models/build/Ctrl/slprj/matlab_includes/simstruc_compcond.h:462,
                 from C:/workspace/Models/build/Ctrl/slprj/matlab_includes/simstruc.h:64,
                 from C:/workspace/Models/build/Ctrl/slprj/matlab_includes/sfunSum.c:35:
C:/workspace/Models/build/Ctrl/slprj/matlab_includes/rt_matrx.h:197:60: error: unknown type name 'mwSize'
  197 | extern mxArray *rt_mxCreateNumericArray(int_T ndims, const mwSize *dims,

I'm compiling with '-DRT'. The missing type is defined in tmwtypes.h. What I'm confused about is that this HelpCenter page states that tmwtypes.h will be included with simstruc.h if used as "Coder Product" - which should be the case here. But in simstruc_types.h it looks as if tmwtypes.h will only be included for MATLAB_MEX_FILE:

#if defined(MATLAB_MEX_FILE) 
    #if !defined(MX_COMPAT_32) && !defined(MX_COMPAT_64) && defined(USE_MEX_CMD) 
        #if defined(tmwtypes_h)
            forceCompilationError tmwtypesbeforesimstrucdetected;
        #else
            #define MX_COMPAT_32
        #endif
    #endif
#include "tmwtypes.h"
#else
#include "rtwtypes.h"
#endif

Ho can I pull in the definition of the type?

Best regards

Matthias

Answer 1

[Mark McBroom]

You are better off inlining the s-function. If you'd prefer to not write the TLC code required for inlining the C function, you can use the C Function block or the legacy_code tool.

https://www.mathworks.com/help/simulink/slref/cfunction.html

https://www.mathworks.com/help/simulink/slref/legacy_code.html