checktest

var BSS *int

var DATA = struct {
	P *int
	X int
}{&NOPTRDATA, 3}

DATA needs to have both a pointer and an int so that _some_ of it gets initialized at link time, so it is treated as DATA and not BSS. The pointer is deferred to init time.

var NOPTRBSS int

var NOPTRDATA int = 1

var RODATA int32 // set to 2 in asm.s

The linkname here disables asan registration of this global, because asan gets mad about rodata globals.