const syscall.PROT_READ

2 uses

	syscall (current package)
		zerrors_darwin_arm64.go#L770: 	PROT_READ                         = 0x1

	go.etcd.io/bbolt
		bolt_unix.go#L52: 	b, err := syscall.Mmap(int(db.file.Fd()), 0, sz, syscall.PROT_READ, syscall.MAP_SHARED|db.MmapFlags)