topic Re: NXP S32K14x SDK startup code for C++ in S32 Design Studio

NXP S32K14x SDK startup code for C++

leo_cheng — Mon, 22 Oct 2018 08:59:26 GMT

Hello,

Does anyone know if S32k14x SDK startup code supports C++ with IAR ARM compiler? I ran into a compile error,

Fatal error[Lp049]: there was no reference to __iar_data_init3, but it is needed to call extra init routines

There is a global C++ object in the source code,

CdevSigma SigmaDsp0(&dspdataConfigDsp0a, &dspdataConfigDsp0a, &dspHwConfigDsp0);

if remove it, the error is gone.

And the startup code and link file for IAR are used,

S32SDK_S32K14x_RTM_2.0.0\platform\devices\S32K146\linker\iar\S32K146_128_flash.icf

S32SDK_S32K14x_RTM_2.0.0\platform\devices\S32K146\startup\iar\startup_S32K146.s

S32SDK_S32K14x_RTM_2.0.0\platform\devices\startup.c

Thanks,

Leo

leo_cheng — Fri, 26 Oct 2018 04:05:47 GMT

Got this answer from IAR

1. Add "--skip_dynamic_initialization" option during link process
2. Add c++ dynamic initialization in early part of Main():

#include "iar_dynamic_init.h"

void main()
{
...
__iar_dynamic_initialization();
...
}

raresvasile — Fri, 26 Oct 2018 09:32:44 GMT

Hi,

Unfortunately, S32 SDK for S32K14x does not support C++.

Best regards,

Rares

iniya_anto — Mon, 05 Feb 2024 05:49:48 GMT

How does it resolve?

I want to understand how c++ object initialisation happens after this?