// operating systems.

// dangerousSlice returns a slice which is immediately
// preceded and followed by a faulting page.
func dangerousSlice(t *testing.T) []byte {
	pagesize := syscall.Getpagesize()
	b, err := syscall.Mmap(0, 0, 3*pagesize, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANONYMOUS|syscall.MAP_PRIVATE)
	if err != nil {
		t.Fatalf("mmap failed %s", err)
	}

pkg os, func Getegid() int
pkg os, func Getenv(string) string
pkg os, func Geteuid() int
pkg os, func Getgid() int
pkg os, func Getgroups() ([]int, error)
pkg os, func Getpagesize() int
pkg os, func Getpid() int
pkg os, func Getppid() int
pkg os, func Getuid() int
pkg os, func Getwd() (string, error)
pkg os, func Hostname() (string, error)
pkg os, func IsExist(error) bool

Allocate a pair of T one at the start of a page, another at the // end. Any access beyond or before the page boundary should cause a fault. This is linux specific. func dangerousObjs[T any](t *testing.T) (start *T, end *T) { pagesize := syscall.Getpagesize() b, err := syscall.Mmap(0, 0, 3*pagesize, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANONYMOUS|syscall.MAP_PRIVATE) if err != nil { t.Fatalf("mmap failed %s", err) } err = syscall.Mprotect(b[:pagesize], syscall.PROT_NONE) if err != nil {...

Allocate a pair of T one at the start of a page, another at the // end. Any access beyond or before the page boundary should cause a fault. This is linux specific. func dangerousObjs[T any](t *testing.T) (start *T, end *T) { pagesize := syscall.Getpagesize() b, err := syscall.Mmap(0, 0, 3*pagesize, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANONYMOUS|syscall.MAP_PRIVATE) if err != nil { t.Fatalf("mmap failed %s", err) } err = syscall.Mprotect(b[:pagesize], syscall.PROT_NONE) if err != nil {...