Somewhat related: Here's Go code to circumvent Go's memory safety without importing unsafe. This is from BUGFIX 66 ("Hack This Site"):
func racer() {
var (
ptr1 *uintptr
ptr2 *byte
race any
done = make(chan struct{})
)
put := func(x any) {
for {
select {
case <-done:
return
default:
race = x
}
}
}
go put(ptr1)
go put(&ptr2)
for {
var ok bool
ptr1, ok = race.(*uintptr)
if ok && ptr1 != nil {
close(done)
break
}
}
get := func(addr uintptr) byte {
*ptr1 = addr
return *ptr2
}
set := func(addr uintptr, to byte) {
*ptr1 = addr
*ptr2 = to
}
if get(0xdeadbeef) == 111 {
set(0xbaaaaaad, 222)
}
}
