topic Re: How to make position independent code with S32DS ? in S32 Design Studio

How to make position independent code with S32DS ?

wangtao8899 — Wed, 23 Jan 2019 02:07:17 GMT

My question is How to make position independent code with S32DS? The compliler is arm-none-eabi-gcc.
I tried to add the compilation parameters "-fpie" , But the program that complied with "-fpie"
always jmp to default isr when assign value to global variables.
I also tried to add both compilation parameters "-fpie" and linker parameters "-pie", But
it will cause linker errors as shown below
-------------------------------------------------------------------
section `.interp' will not fit in region `m_flash_config'
section .interp loaded at [00004410,00004420] overlaps section .text loaded at [00004410,0000593b]
region `m_flash_config' overflowed by 1280 bytes
-------------------------------------------------------------------
May be modify the linker script file and add the section ".interp" will solve this problem ?
But will there be other potential problems?

Re: How to make position independent code with S32DS ?

stanish — Wed, 23 Jan 2019 09:52:43 GMT

there have been some issues observed with position independent code/executable compiler switch.

Please see the posts below:

https://community.nxp.com/message/1015654

kinetis with fPIC (position independent code)

Anyway, could you possibly describe more in the detail what is your goal? perhaps there are other ways to achieve it.

Thanks.

Stan

Re: How to make position independent code with S32DS ?

mikedoidge — Tue, 11 Feb 2020 21:50:13 GMT

Hello,

We have posted a new example which demonstrates the implementation of position independent code. Please see https://community.nxp.com/docs/DOC-345595 for details.

Hope it helps,

Mike

Re: How to make position independent code with S32DS ?

mikedoidge — Mon, 14 Jun 2021 19:15:03 GMT

There is a new blog on mcuoneclipse.com which covers this topic in great detail:

Position-Independent Code With GCC for arm Cortex M