[EXT_SITMPUSW-317] C++ code not working as expected on M4F Created: 26/Mar/26  Updated: 26/Mar/26  Resolved: 26/Mar/26

Status: Fixed
Project: Sitara MPU & SPMCU SDKs
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Medium
Reporter: TI User Assignee: TI User
Resolution: Fixed Votes: 0
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Internal ID: SITSW-6383
Found In Release: 10.01.00
Fix In Release: 12.00.00
Affected Platform/Device: am243x-evm
am243x-lp
am64xx-evm
am64xx-sk

 Description   

The below C++ code is not working in an expected way on M4FSS.

The same code works fine on R5FSS.

Please refer below code

#include <stdio.h>
#include <string.h>
#include <kernel/dpl/DebugP.h>
#include "ti_drivers_config.h"
#include "ti_drivers_open_close.h"
#include "ti_board_open_close.h"
typedef unsigned int uint;

/// Sample class that sets a string
class Foo{
    public:    Foo(void);
    static const uint uStrLen = 20U;    
    char mystr[uStrLen + 1U];
}; // class Foo

Foo::Foo(void){
    strncpy(mystr, "Testing\r\n", uStrLen);
    mystr[uStrLen] = '\0';
}
/// Declare static class instanceFoo foo;
void hello_world_main(void *args){
    /* Open drivers to open the UART driver for console */
    Drivers_open();
    Board_driversOpen();
    // Foo f;
    DebugP_log("Hello World!\r\n");
    DebugP_log("%s",foo.mystr);
    // DebugP_log("%s",f.mystr);
    Board_driversClose();
    Drivers_close();
}

E2E - https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1461822/mcu-plus-sdk-am243x-unable-to-debug-on-m4-hello-world-project 


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