[flygoat]

I'm planning to do something low-level, just wonder that how stable is IRIX's syscall ABI?
Is there any major syscall breakage between versions?

Knowing that *BSDs are breaking syscall ABI all the time, while Linux won't break syscall ABI, what's the position for IRIX?
I saw IRIX5 is used in ELF to identify ABI even for IRIX6.5 binaries, does it mean IRIX's syscall ABI is stable since IRIX5?

Perhaps the easiest way to figure that out is diff includeds under sys/ between versions. Just want to know if anybody have relevant information.