Hi @春峰 汪 Greetings! Apologies for the delayed update on this issue. We have received the below feedback from the product team on this request.
We currently do not have GNU version of Cortex-R8 SMP except AC5. The team further stated that there are no immediate plans to add GNU support.
Since this is currently not supported, we do not have any recommended approach on how to port the existing files. You may try modifying the AC5 assembly files to GNU syntax, if possible.
I understand that this situation may have caused some inconvenience, and I want to express my gratitude for your efforts and patience in handling it.