syscall: add mlock, munlock, mlockall, munlockall and mprotect to OSX
Fixes #7415
LGTM=bradfitz
R=bradfitz, iant
CC=golang-codereviews
https://golang.org/cl/68980043
diff --git a/src/pkg/syscall/syscall_darwin.go b/src/pkg/syscall/syscall_darwin.go
index bd929ff..75cbbea 100644
--- a/src/pkg/syscall/syscall_darwin.go
+++ b/src/pkg/syscall/syscall_darwin.go
@@ -244,6 +244,11 @@
//sys Mkdir(path string, mode uint32) (err error)
//sys Mkfifo(path string, mode uint32) (err error)
//sys Mknod(path string, mode uint32, dev int) (err error)
+//sys Mlock(b []byte) (err error)
+//sys Mlockall(flags int) (err error)
+//sys Mprotect(b []byte, prot int) (err error)
+//sys Munlock(b []byte) (err error)
+//sys Munlockall() (err error)
//sys Open(path string, mode int, perm uint32) (fd int, err error)
//sys Pathconf(path string, name int) (val int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
