Hi,

Even the ongoing HAL design abstracts all platform-specific operations, there are still some operations that need to be performed directly in TF-M, such as architecture-related operations.

These operations are common for all platforms, such as:

generic assembler code for AAPCS based context management.
assign attributes to specific functions.

These operations rely on compiler and architecture much instead of the platform. So, define a CORE-specific compiler configuration header file would be a straight requirement. With these unified headers, writing the architecture-specific code would be much safer because it won't involve hardcode compiler related changes. The minimal set of mandatory architecture registers is also planned to be defined.

Here send out a mail to collect for the feedbacks - is it worthy of doing this to decouple the architecture from the platform, or we can just re-use the platform provided headers?

Any comments are welcome:)

Best Regards,

Summer