C++ Program using Function Pointer not running in Microblaze

[dpk]

Hello,

I am writing a simple program with templates and function pointer in Vitis 2019.2 to run on the Microblaze. I instantiated a Microblaze and BRAM in the hardware.

 

The program is compiling without any errors but result is not stored on the memory. I ran the same program on my local desktop and it is running as expected.

 

Can someone please help me on how to debug this issue?

 

I have posted the program below.

 

Thanks for your time and consideration.

 

 

#include "xil_io.h"

#include "xparameters.h"

#include <functional>

 

int AddFunc(int a, int b, int c){

     int ans = a + b + c;

     return ans;

}

template <typename T, typename... ArgTypes>

class FuncExec{

     const std::function<T(ArgTypes...)> f_;

     T value;

public:

FuncExec(const std::function<T(ArgTypes...)> f) : f_(f) {}

void FuncInput(ArgTypes... args){

     value = f_(args...);

     Xil_Out64(XPAR_AXI_BRAM_CTRL_1_S_AXI_BASEADDR + sizeof(double) + sizeof(double), value);

}

};

 

int main() {

FuncExec <int, int, int, int> func1(AddFunc);

func1.FuncInput(3, 3, 3);

return 0;

}

Edited November 19, 2021 by dpk

[thinkthinkthink]

Yeah... about that... I've also tried a bunch of things but couldn't get c++ code to run on microblaze either. Not even a simple cout would work. Even on zynq processors that have ARM cores you have to be careful with c++.

Edited November 19, 2021 by thinkthinkthink