1//go:build (freebsd || netbsd || dragonfly) && !tinygo
 2
 3package platform
 4
 5import (
 6	"syscall"
 7	"unsafe"
 8)
 9
10// MprotectRX is like syscall.Mprotect with RX permission, defined locally so that BSD compiles.
11func MprotectRX(b []byte) (err error) {
12	var _p0 unsafe.Pointer
13	if len(b) > 0 {
14		_p0 = unsafe.Pointer(&b[0])
15	}
16	const prot = syscall.PROT_READ | syscall.PROT_EXEC
17	_, _, e1 := syscall.Syscall(syscall.SYS_MPROTECT, uintptr(_p0), uintptr(len(b)), uintptr(prot))
18	if e1 != 0 {
19		err = syscall.Errno(e1)
20	}
21	return
22}