topic Re: How to assign data and function to specific section in S32DS for Arm in S32K

How to assign data and function to specific section in S32DS for Arm

hurongbo — Fri, 23 Jul 2021 06:29:16 GMT

Hello everyone:

I use S32K148 MCU ,and S32DS for Arm IDE V2.2.

I want to assign data and code to specific sections.

At first, I use #pragma section it not work, S32DS ignore it (Unknow pragmas).

Then,I use __attribute__ ((section(".mycode"))), It worked.But only one function was assigned to ".mycode" section below __attribute__ ((section(".mycode"))) instruct.

My code like this：
__attribute__ ((section(".mycode")))

void AAA()
{
}

void BBB()
{
}

After link,Only function AAA in section ".mycode".Function BBB in default ".text" section.

How to assign all function in one module to a section with one instruction like #pragma section in other platform?

Thanks.

Re: How to assign data and function to specific section in S32DS for Arm

davidtosenovjan — Fri, 23 Jul 2021 10:41:16 GMT

Hi, you have actually answered yourself.

There are no pragmas in GCC, you will have to add mentioned attribute before every function.

Re: How to assign data and function to specific section in S32DS for Arm

hurongbo — Mon, 26 Jul 2021 09:52:02 GMT

Thanks a lot.