topic Re: After transplanting the UDS protocol stack, compilation reports errors. in S32K

After transplanting the UDS protocol stack, compilation reports errors.

代码织梦师 — Mon, 26 Jan 2026 06:15:59 GMT

Hello, I have ported the bootloader routine from NXP to S32K324. After porting and compiling the UDS routine for the APP, the software reports this error. Could you please tell me what the reason might be?The attachment is the LinkFile.

Re: After transplanting the UDS protocol stack, compilation reports errors.

Julián_AragónM — Mon, 26 Jan 2026 21:43:47 GMT

Hi @代码织梦师,

I imagine you are porting the Unified bootloader Demo, correct?

Please check your linker file and verify whether the stack and heap sizes are both correctly set. Also ensure .sram_data + .bss + .noinit fit below the heap/stack block.

There are various threads discussing similar issues, you can also refer to them: Search - NXP Community.

You mentioned you have attached the linker file; however, I cannot see it. Can you try sharing it?

Best regards,
Julián

Re: After transplanting the UDS protocol stack, compilation reports errors.

代码织梦师 — Thu, 29 Jan 2026 05:46:16 GMT

Please check the linkfile

Re: After transplanting the UDS protocol stack, compilation reports errors.

Julián_AragónM — Thu, 05 Feb 2026 18:34:53 GMT

Hi @代码织梦师,

Thank you for sharing the linker file. I do not see anything necessarily wrong.

By chance, are you using C++? __exidx_start & __exidx_end are symbols used by the compiler to form an exception-handling index. It seems you do not have them initialized inside your linker file. You can refer to this community post where a similar question was asked: What is the function of section named ".ARM.exidx" in ld script - NXP Community.

I've also found these posts discussing something similar: stm32 - When is .ARM.exidx is used - Stack Overflow & c++ - gcc objdump - what is section .ARM.exidx.text - Stack Overflow.

That said, please try using the examples provided in the Unified bootloader Demo. The download .zip already provides a project example for S32K324.

Best regards,
Julián