[TF-M] Inline asm syntax unified and symbol reference in IAR toolchain

Hi Thomas and all,

I noticed there are some

#if !defined(__ICCARM__) ".syntax unified \n" #endif

In source code, looks like ".syntax unified" is not support in IAR, is that true? If it could not be supported in a short term, we can define some wrapper such as:

#ifdef __ICCARM__ #define CLAIM_SYNTAX_UNIFIED "\n" #else #define CLAIM_SYNTAX_UNIFIED ".syntax unified \n" #endif

Another question is about the: #if defined(__ICCARM__) #pragma required = do_schedule #endif

If we claim do_schedule in the constraints, is the above "#pragma required" still needed?

__asm (".... :: "i"(do_schedule));

We can create a patch to test this - using a constraint looks more proper.

Thanks.

/Ken