Auto merge of #2375 - devnexen:android_prctl_vma_flags, r=JohnTitor

android prctl adding special flags

Author: bors

libc-test/semver/android.txt

@@ -1615,6 +1615,8 @@ POSIX_FADV_NORMAL
 POSIX_FADV_RANDOM
 POSIX_FADV_SEQUENTIAL
 POSIX_FADV_WILLNEED
+PR_SET_VMA
+PR_SET_VMA_ANON_NAME
 PRIO_MAX
 PRIO_MIN
 PRIO_PGRP

src/unix/linux_like/android/mod.rs

@@ -2438,6 +2438,10 @@ pub const PF_VSOCK: ::c_int = AF_VSOCK;
 pub const PROP_VALUE_MAX: ::c_int = 92;
 pub const PROP_NAME_MAX: ::c_int = 32;
 
+// sys/prctl.h
+pub const PR_SET_VMA: ::c_int = 0x53564d41;
+pub const PR_SET_VMA_ANON_NAME: ::c_int = 0;
+
 f! {
     pub fn CMSG_NXTHDR(mhdr: *const msghdr,
                        cmsg: *const cmsghdr) -> *mut cmsghdr {