Does mprotect flush the instruction cache on ARM Linux?

Question

I am writing a JIT on ARM Linux that executes an instruction set that contains self-modifying code. The instruction set does not have any cache flush instructions (similar to x86 in that respect).

If I write out some code to a page and then call mprotect on that page, is that sufficient to invalidate the instruction cache? Or do I also need to use the cacheflush syscall on those pages?

Answer 1

I believe you do not have to explicitly flush the cache.

Which processor is this? ARMv5? ARMv7?