diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ca848701..cb5a15ac 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -60,9 +60,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # TODO: add the following targets, currently broken.
-        # "x86_64-unknown-redox"
-        target: ["aarch64-apple-ios", "aarch64-linux-android", "x86_64-apple-darwin", "x86_64-unknown-fuchsia", "x86_64-pc-windows-msvc", "x86_64-pc-solaris", "x86_64-unknown-illumos", "x86_64-unknown-linux-gnu", "x86_64-unknown-netbsd"]
+        target: ["aarch64-apple-ios", "aarch64-linux-android", "x86_64-apple-darwin", "x86_64-unknown-fuchsia", "x86_64-pc-windows-msvc", "x86_64-pc-solaris", "x86_64-unknown-illumos", "x86_64-unknown-linux-gnu", "x86_64-unknown-netbsd", "x86_64-unknown-redox"]
     steps:
     - uses: actions/checkout@master
     - name: Install Rust
@@ -72,21 +70,18 @@ jobs:
       run: rustup target add ${{ matrix.target }}
     - name: Run check
       run: cargo hack check --feature-powerset --all-targets --examples --bins --tests --target ${{ matrix.target }}
-
-  # Redox needs a nightly compiler for libc:
-  # https://github.com/rust-lang/libc/issues/2012
-  Check_Redox:
+  CheckTier3:
     name: Check
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        target: ["x86_64-unknown-redox"]
+        target: ["armv7-sony-vita-newlibeabihf"]
     steps:
-    - uses: actions/checkout@master
-    - name: Install Rust nightly
-      run: rustup update nightly && rustup default nightly
+    - uses: actions/checkout@v3
+    - uses: dtolnay/rust-toolchain@nightly
+      with:
+        components: "rust-src"
     - uses: taiki-e/install-action@cargo-hack
-    - name: Install Target
-      run: rustup target add ${{ matrix.target }}
     - name: Run check
-      run: cargo hack check --feature-powerset --all-targets --examples --bins --tests --target ${{ matrix.target }}
+      run: cargo hack check -Z build-std=std,panic_abort --feature-powerset --all-targets --examples --bins --tests --target ${{ matrix.target }}
diff --git a/Cargo.toml b/Cargo.toml
index 78c8d5f1..97108f64 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 features = ["all"]
 
 [target."cfg(unix)".dependencies]
-libc = "0.2.139"
+libc = "0.2.149"
 
 [target."cfg(windows)".dependencies]
 winapi = { version = "0.3.9", features = ["handleapi", "ws2ipdef", "ws2tcpip"] }
diff --git a/src/lib.rs b/src/lib.rs
index 0abc1e9d..aa932a2c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -331,7 +331,7 @@ impl<'a> DerefMut for MaybeUninitSlice<'a> {
 /// See [`Socket::set_tcp_keepalive`].
 #[derive(Debug, Clone)]
 pub struct TcpKeepalive {
-    #[cfg_attr(target_os = "openbsd", allow(dead_code))]
+    #[cfg_attr(any(target_os = "openbsd", target_os = "vita"), allow(dead_code))]
     time: Option<Duration>,
     #[cfg(not(any(
         target_os = "openbsd",
@@ -339,6 +339,7 @@ pub struct TcpKeepalive {
         target_os = "solaris",
         target_os = "nto",
         target_os = "espidf",
+        target_os = "vita",
     )))]
     interval: Option<Duration>,
     #[cfg(not(any(
@@ -348,6 +349,7 @@ pub struct TcpKeepalive {
         target_os = "windows",
         target_os = "nto",
         target_os = "espidf",
+        target_os = "vita",
     )))]
     retries: Option<u32>,
 }
@@ -363,6 +365,7 @@ impl TcpKeepalive {
                 target_os = "solaris",
                 target_os = "nto",
                 target_os = "espidf",
+                target_os = "vita",
             )))]
             interval: None,
             #[cfg(not(any(
@@ -372,6 +375,7 @@ impl TcpKeepalive {
                 target_os = "windows",
                 target_os = "nto",
                 target_os = "espidf",
+                target_os = "vita",
             )))]
             retries: None,
         }
diff --git a/src/sockaddr.rs b/src/sockaddr.rs
index 2ddb2626..e7210187 100644
--- a/src/sockaddr.rs
+++ b/src/sockaddr.rs
@@ -237,8 +237,11 @@ impl From<SocketAddrV4> for SockAddr {
                 target_os = "openbsd",
                 target_os = "nto",
                 target_os = "espidf",
+                target_os = "vita",
             ))]
             sin_len: 0,
+            #[cfg(target_os = "vita")]
+            sin_vport: addr.port().to_be(),
         };
         let mut storage = MaybeUninit::<sockaddr_storage>::zeroed();
         // Safety: A `sockaddr_in` is memory compatible with a `sockaddr_storage`
@@ -278,8 +281,11 @@ impl From<SocketAddrV6> for SockAddr {
                 target_os = "openbsd",
                 target_os = "nto",
                 target_os = "espidf",
+                target_os = "vita",
             ))]
             sin6_len: 0,
+            #[cfg(target_os = "vita")]
+            sin6_vport: addr.port().to_be(),
             #[cfg(any(target_os = "solaris", target_os = "illumos"))]
             __sin6_src_id: 0,
         };
diff --git a/src/socket.rs b/src/socket.rs
index c4f262a4..90649d9d 100644
--- a/src/socket.rs
+++ b/src/socket.rs
@@ -730,6 +730,7 @@ fn set_common_flags(socket: Socket) -> io::Result<Socket> {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "espidf",
+            target_os = "vita",
         ))
     ))]
     socket._set_cloexec(true)?;
@@ -1174,6 +1175,7 @@ impl Socket {
         target_os = "solaris",
         target_os = "nto",
         target_os = "espidf",
+        target_os = "vita",
     )))]
     pub fn join_multicast_v4_n(
         &self,
@@ -1205,6 +1207,7 @@ impl Socket {
         target_os = "solaris",
         target_os = "nto",
         target_os = "espidf",
+        target_os = "vita",
     )))]
     pub fn leave_multicast_v4_n(
         &self,
@@ -1238,6 +1241,7 @@ impl Socket {
         target_os = "fuchsia",
         target_os = "nto",
         target_os = "espidf",
+        target_os = "vita",
     )))]
     pub fn join_ssm_v4(
         &self,
@@ -1274,6 +1278,7 @@ impl Socket {
         target_os = "fuchsia",
         target_os = "nto",
         target_os = "espidf",
+        target_os = "vita",
     )))]
     pub fn leave_ssm_v4(
         &self,
@@ -1451,6 +1456,7 @@ impl Socket {
         target_os = "windows",
         target_os = "nto",
         target_os = "espidf",
+        target_os = "vita",
     )))]
     pub fn set_recv_tos(&self, recv_tos: bool) -> io::Result<()> {
         let recv_tos = if recv_tos { 1 } else { 0 };
@@ -1481,6 +1487,7 @@ impl Socket {
         target_os = "windows",
         target_os = "nto",
         target_os = "espidf",
+        target_os = "vita",
     )))]
     pub fn recv_tos(&self) -> io::Result<bool> {
         unsafe {
@@ -1697,14 +1704,24 @@ impl Socket {
         doc,
         all(
             feature = "all",
-            not(any(windows, target_os = "haiku", target_os = "openbsd"))
+            not(any(
+                windows,
+                target_os = "haiku",
+                target_os = "openbsd",
+                target_os = "vita"
+            ))
         )
     ))]
     #[cfg_attr(
         docsrs,
         doc(cfg(all(
             feature = "all",
-            not(any(windows, target_os = "haiku", target_os = "openbsd"))
+            not(any(
+                windows,
+                target_os = "haiku",
+                target_os = "openbsd",
+                target_os = "vita"
+            ))
         )))
     )]
     pub fn keepalive_time(&self) -> io::Result<Duration> {
diff --git a/src/sys/unix.rs b/src/sys/unix.rs
index e9cfddf6..ec7c3e2e 100644
--- a/src/sys/unix.rs
+++ b/src/sys/unix.rs
@@ -92,6 +92,7 @@ pub(crate) use libc::IP_HDRINCL;
     target_os = "haiku",
     target_os = "nto",
     target_os = "espidf",
+    target_os = "vita",
 )))]
 pub(crate) use libc::IP_RECVTOS;
 #[cfg(not(any(
@@ -121,6 +122,7 @@ pub(crate) use libc::{
     target_os = "fuchsia",
     target_os = "nto",
     target_os = "espidf",
+    target_os = "vita",
 )))]
 pub(crate) use libc::{
     ip_mreq_source as IpMreqSource, IP_ADD_SOURCE_MEMBERSHIP, IP_DROP_SOURCE_MEMBERSHIP,
@@ -175,6 +177,7 @@ use libc::TCP_KEEPALIVE as KEEPALIVE_TIME;
     target_os = "haiku",
     target_os = "openbsd",
     target_os = "nto",
+    target_os = "vita",
 )))]
 use libc::TCP_KEEPIDLE as KEEPALIVE_TIME;
 
@@ -237,6 +240,7 @@ type IovLen = usize;
     target_os = "nto",
     target_vendor = "apple",
     target_os = "espidf",
+    target_os = "vita",
 ))]
 type IovLen = c_int;
 
@@ -713,6 +717,7 @@ pub(crate) fn try_clone(fd: Socket) -> io::Result<Socket> {
     syscall!(fcntl(fd, libc::F_DUPFD_CLOEXEC, 0))
 }
 
+#[cfg(not(target_os = "vita"))]
 pub(crate) fn set_nonblocking(fd: Socket, nonblocking: bool) -> io::Result<()> {
     if nonblocking {
         fcntl_add(fd, libc::F_GETFL, libc::F_SETFL, libc::O_NONBLOCK)
@@ -721,6 +726,18 @@ pub(crate) fn set_nonblocking(fd: Socket, nonblocking: bool) -> io::Result<()> {
     }
 }
 
+#[cfg(target_os = "vita")]
+pub(crate) fn set_nonblocking(fd: Socket, nonblocking: bool) -> io::Result<()> {
+    unsafe {
+        setsockopt(
+            fd,
+            libc::SOL_SOCKET,
+            libc::SO_NONBLOCK,
+            nonblocking as libc::c_int,
+        )
+    }
+}
+
 pub(crate) fn shutdown(fd: Socket, how: Shutdown) -> io::Result<()> {
     let how = match how {
         Shutdown::Write => libc::SHUT_WR,
@@ -923,7 +940,7 @@ fn into_timeval(duration: Option<Duration>) -> libc::timeval {
 }
 
 #[cfg(feature = "all")]
-#[cfg(not(any(target_os = "haiku", target_os = "openbsd")))]
+#[cfg(not(any(target_os = "haiku", target_os = "openbsd", target_os = "vita")))]
 pub(crate) fn keepalive_time(fd: Socket) -> io::Result<Duration> {
     unsafe {
         getsockopt::<c_int>(fd, IPPROTO_TCP, KEEPALIVE_TIME)
@@ -933,7 +950,12 @@ pub(crate) fn keepalive_time(fd: Socket) -> io::Result<Duration> {
 
 #[allow(unused_variables)]
 pub(crate) fn set_tcp_keepalive(fd: Socket, keepalive: &TcpKeepalive) -> io::Result<()> {
-    #[cfg(not(any(target_os = "haiku", target_os = "openbsd", target_os = "nto")))]
+    #[cfg(not(any(
+        target_os = "haiku",
+        target_os = "openbsd",
+        target_os = "nto",
+        target_os = "vita"
+    )))]
     if let Some(time) = keepalive.time {
         let secs = into_secs(time);
         unsafe { setsockopt(fd, libc::IPPROTO_TCP, KEEPALIVE_TIME, secs)? }
@@ -969,12 +991,18 @@ pub(crate) fn set_tcp_keepalive(fd: Socket, keepalive: &TcpKeepalive) -> io::Res
     Ok(())
 }
 
-#[cfg(not(any(target_os = "haiku", target_os = "openbsd", target_os = "nto")))]
+#[cfg(not(any(
+    target_os = "haiku",
+    target_os = "openbsd",
+    target_os = "nto",
+    target_os = "vita"
+)))]
 fn into_secs(duration: Duration) -> c_int {
     min(duration.as_secs(), c_int::max_value() as u64) as c_int
 }
 
 /// Add `flag` to the current set flags of `F_GETFD`.
+#[cfg(not(target_os = "vita"))]
 fn fcntl_add(fd: Socket, get_cmd: c_int, set_cmd: c_int, flag: c_int) -> io::Result<()> {
     let previous = syscall!(fcntl(fd, get_cmd))?;
     let new = previous | flag;
@@ -987,6 +1015,7 @@ fn fcntl_add(fd: Socket, get_cmd: c_int, set_cmd: c_int, flag: c_int) -> io::Res
 }
 
 /// Remove `flag` to the current set flags of `F_GETFD`.
+#[cfg(not(target_os = "vita"))]
 fn fcntl_remove(fd: Socket, get_cmd: c_int, set_cmd: c_int, flag: c_int) -> io::Result<()> {
     let previous = syscall!(fcntl(fd, get_cmd))?;
     let new = previous & !flag;
@@ -1066,6 +1095,7 @@ pub(crate) fn from_in6_addr(addr: in6_addr) -> Ipv6Addr {
     target_os = "solaris",
     target_os = "nto",
     target_os = "espidf",
+    target_os = "vita",
 )))]
 pub(crate) fn to_mreqn(
     multiaddr: &Ipv4Addr,
@@ -1152,12 +1182,13 @@ impl crate::Socket {
     /// # Notes
     ///
     /// On supported platforms you can use [`Type::cloexec`].
-    #[cfg(feature = "all")]
-    #[cfg_attr(docsrs, doc(cfg(all(feature = "all", unix))))]
+    #[cfg(all(feature = "all", not(target_os = "vita")))]
+    #[cfg_attr(docsrs, doc(cfg(all(feature = "all", unix, not(target_os = "vita")))))]
     pub fn set_cloexec(&self, close_on_exec: bool) -> io::Result<()> {
         self._set_cloexec(close_on_exec)
     }
 
+    #[cfg(not(target_os = "vita"))]
     pub(crate) fn _set_cloexec(&self, close_on_exec: bool) -> io::Result<()> {
         if close_on_exec {
             fcntl_add(
diff --git a/tests/socket.rs b/tests/socket.rs
index 3b6e3f2d..3f409cdd 100644
--- a/tests/socket.rs
+++ b/tests/socket.rs
@@ -10,14 +10,16 @@
 ))]
 use std::fs::File;
 use std::io;
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 use std::io::IoSlice;
 #[cfg(all(unix, feature = "all"))]
 use std::io::Read;
 use std::io::Write;
-use std::mem::{self, MaybeUninit};
+#[cfg(not(target_os = "vita"))]
+use std::mem::MaybeUninit;
+use std::mem::{self};
 use std::net::{Ipv4Addr, SocketAddr, SocketAddrV4, TcpStream};
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 use std::net::{Ipv6Addr, SocketAddrV6};
 #[cfg(all(
     feature = "all",
@@ -34,9 +36,10 @@ use std::os::unix::io::AsRawFd;
 #[cfg(windows)]
 use std::os::windows::io::AsRawSocket;
 use std::str;
+#[cfg(not(target_os = "vita"))]
 use std::thread;
 use std::time::Duration;
-#[cfg(all(unix, feature = "all"))]
+#[cfg(all(unix, feature = "all", not(target_os = "vita")))]
 use std::{env, fs};
 
 #[cfg(windows)]
@@ -46,9 +49,11 @@ use winapi::um::handleapi::GetHandleInformation;
 #[cfg(windows)]
 use winapi::um::winbase::HANDLE_FLAG_INHERIT;
 
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 use socket2::MaybeUninitSlice;
-use socket2::{Domain, Protocol, SockAddr, Socket, TcpKeepalive, Type};
+#[cfg(not(target_os = "vita"))]
+use socket2::TcpKeepalive;
+use socket2::{Domain, Protocol, SockAddr, Socket, Type};
 
 #[test]
 fn domain_for_address() {
@@ -175,12 +180,19 @@ fn set_nonblocking() {
 }
 
 fn assert_common_flags(socket: &Socket, expected: bool) {
-    #[cfg(unix)]
+    #[cfg(all(unix, not(target_os = "vita")))]
     assert_close_on_exec(socket, expected);
     #[cfg(target_vendor = "apple")]
     assert_flag_no_sigpipe(socket, expected);
     #[cfg(windows)]
     assert_flag_no_inherit(socket, expected);
+
+    // Vita does not have process API, so neither SO_NOSIGPIPE nor FD_CLOEXEC are supported on this platform
+    #[cfg(target_os = "vita")]
+    {
+        let _ = socket;
+        let _ = expected;
+    }
 }
 
 #[test]
@@ -239,8 +251,29 @@ pub fn assert_nonblocking<S>(socket: &S, want: bool)
 where
     S: AsRawFd,
 {
-    let flags = unsafe { libc::fcntl(socket.as_raw_fd(), libc::F_GETFL) };
-    assert_eq!(flags & libc::O_NONBLOCK != 0, want, "non-blocking option");
+    #[cfg(not(target_os = "vita"))]
+    {
+        let flags = unsafe { libc::fcntl(socket.as_raw_fd(), libc::F_GETFL) };
+        assert_eq!(flags & libc::O_NONBLOCK != 0, want, "non-blocking option");
+    }
+
+    #[cfg(target_os = "vita")]
+    {
+        let mut optval: libc::c_int = 0;
+        let mut optlen = std::mem::size_of::<libc::c_int>() as libc::socklen_t;
+
+        let res = unsafe {
+            libc::getsockopt(
+                socket.as_raw_fd(),
+                libc::SOL_SOCKET,
+                libc::SO_NONBLOCK,
+                &mut optval as *mut libc::c_int as _,
+                &mut optlen,
+            )
+        };
+        assert_eq!(res, 0, "unable to get non-blocing option");
+        assert_eq!(optval > 0, want, "non-blocking option");
+    }
 }
 
 #[cfg(windows)]
@@ -249,7 +282,7 @@ pub fn assert_nonblocking<S>(_: &S, _: bool) {
     // No way to get this information...
 }
 
-#[cfg(all(unix, feature = "all"))]
+#[cfg(all(unix, feature = "all", not(target_os = "vita")))]
 #[test]
 fn set_cloexec() {
     let socket = Socket::new(Domain::IPV4, Type::STREAM, None).unwrap();
@@ -372,6 +405,7 @@ where
     assert_eq!(flags, want as _, "non-blocking option");
 }
 
+#[cfg_attr(target_os = "vita", allow(dead_code))]
 const DATA: &[u8] = b"hello world";
 
 #[test]
@@ -388,6 +422,7 @@ fn connect_timeout_unrouteable() {
 }
 
 #[test]
+#[cfg(not(target_os = "vita"))] // Loopback has special behavior on vita
 fn connect_timeout_unbound() {
     // Bind and drop a socket to track down a "probably unassigned" port.
     let socket = Socket::new(Domain::IPV4, Type::STREAM, None).unwrap();
@@ -434,7 +469,7 @@ fn pair() {
 }
 
 #[test]
-#[cfg(all(feature = "all", unix))]
+#[cfg(all(feature = "all", unix, not(target_os = "vita")))]
 fn unix() {
     let mut path = env::temp_dir();
     path.push("socket2");
@@ -483,6 +518,7 @@ fn vsock() {
 }
 
 #[test]
+#[cfg(not(target_os = "vita"))] // Vita does not support OOB
 fn out_of_band() {
     let listener = Socket::new(Domain::IPV4, Type::STREAM, None).unwrap();
     listener.bind(&any_ipv4()).unwrap();
@@ -513,7 +549,7 @@ fn out_of_band() {
 }
 
 #[test]
-#[cfg(not(target_os = "redox"))] // cfg of `udp_pair_unconnected()`
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 fn udp_peek_sender() {
     let (socket_a, socket_b) = udp_pair_unconnected();
 
@@ -528,7 +564,7 @@ fn udp_peek_sender() {
 }
 
 #[test]
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 fn send_recv_vectored() {
     let (socket_a, socket_b) = udp_pair_connected();
 
@@ -575,7 +611,7 @@ fn send_recv_vectored() {
 }
 
 #[test]
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 fn send_from_recv_to_vectored() {
     let (socket_a, socket_b) = udp_pair_unconnected();
     let addr_a = socket_a.local_addr().unwrap();
@@ -624,7 +660,7 @@ fn send_from_recv_to_vectored() {
 }
 
 #[test]
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 fn recv_vectored_truncated() {
     let (socket_a, socket_b) = udp_pair_connected();
 
@@ -644,7 +680,7 @@ fn recv_vectored_truncated() {
 }
 
 #[test]
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 fn recv_from_vectored_truncated() {
     let (socket_a, socket_b) = udp_pair_unconnected();
     let addr_a = socket_a.local_addr().unwrap();
@@ -670,7 +706,7 @@ fn recv_from_vectored_truncated() {
 }
 
 /// Create a pair of non-connected UDP sockets suitable for unit tests.
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 fn udp_pair_unconnected() -> (Socket, Socket) {
     // Use ephemeral ports assigned by the OS.
     let unspecified_addr = SocketAddrV6::new(Ipv6Addr::LOCALHOST, 0, 0, 0);
@@ -698,7 +734,7 @@ fn udp_pair_unconnected() -> (Socket, Socket) {
 }
 
 /// Create a pair of connected UDP sockets suitable for unit tests.
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "vita")))]
 fn udp_pair_connected() -> (Socket, Socket) {
     let (socket_a, socket_b) = udp_pair_unconnected();
 
@@ -711,6 +747,7 @@ fn udp_pair_connected() -> (Socket, Socket) {
 }
 
 #[test]
+#[cfg(not(target_os = "vita"))]
 fn tcp_keepalive() {
     let socket = Socket::new(Domain::IPV4, Type::STREAM, None).unwrap();
     let params = TcpKeepalive::new().with_time(Duration::from_secs(200));
@@ -1022,11 +1059,18 @@ fn r#type() {
     let socket = Socket::new(Domain::IPV4, Type::STREAM, None).unwrap();
     assert_eq!(socket.r#type().unwrap(), Type::STREAM);
 
-    let socket = Socket::new(Domain::IPV6, Type::DGRAM, None).unwrap();
-    assert_eq!(socket.r#type().unwrap(), Type::DGRAM);
+    #[cfg(not(target_os = "vita"))]
+    {
+        let socket = Socket::new(Domain::IPV6, Type::DGRAM, None).unwrap();
+        assert_eq!(socket.r#type().unwrap(), Type::DGRAM);
+    }
 
     // macos doesn't support seqpacket
-    #[cfg(all(unix, not(target_vendor = "apple"), feature = "all"))]
+    #[cfg(all(
+        unix,
+        not(any(target_vendor = "apple", target_os = "vita")),
+        feature = "all"
+    ))]
     {
         let socket = Socket::new(Domain::UNIX, Type::SEQPACKET, None).unwrap();
         assert_eq!(socket.r#type().unwrap(), Type::SEQPACKET);
@@ -1059,6 +1103,7 @@ fn any_ipv4() -> SockAddr {
 
 /// Assume the `buf`fer to be initialised.
 // TODO: replace with `MaybeUninit::slice_assume_init_ref` once stable.
+#[cfg(not(target_os = "vita"))] // Loopback has special behavior on vita
 unsafe fn assume_init(buf: &[MaybeUninit<u8>]) -> &[u8] {
     &*(buf as *const [MaybeUninit<u8>] as *const [u8])
 }
@@ -1074,6 +1119,7 @@ macro_rules! test {
         $( #[$attr] )*
         fn $get_fn() {
             test!(__ Domain::IPV4, $get_fn, $set_fn($arg), $expected);
+            #[cfg(not(target_os = "vita"))]
             test!(__ Domain::IPV6, $get_fn, $set_fn($arg), $expected);
         }
     };
@@ -1197,18 +1243,22 @@ test!(IPv4 tos, set_tos(96));
     target_os = "redox",
     target_os = "solaris",
     target_os = "windows",
+    target_os = "vita",
 )))]
 test!(IPv4 recv_tos, set_recv_tos(true));
 
 #[cfg(not(windows))] // TODO: returns `WSAENOPROTOOPT` (10042) on Windows.
 test!(IPv4 broadcast, set_broadcast(true));
 
+#[cfg(not(target_os = "vita"))]
 test!(IPv6 unicast_hops_v6, set_unicast_hops_v6(20));
+
 #[cfg(not(any(
     windows,
     target_os = "dragonfly",
     target_os = "freebsd",
-    target_os = "openbsd"
+    target_os = "openbsd",
+    target_os = "vita"
 )))]
 test!(IPv6 only_v6, set_only_v6(true));
 // IPv6 socket are already IPv6 only on FreeBSD and Windows.
@@ -1232,6 +1282,7 @@ test!(
     target_os = "openbsd",
     target_os = "redox",
     target_os = "solaris",
+    target_os = "vita",
 )))]
 fn join_leave_multicast_v4_n() {
     let socket = Socket::new(Domain::IPV4, Type::DGRAM, None).unwrap();
@@ -1261,6 +1312,7 @@ fn join_leave_multicast_v4_n() {
     target_os = "openbsd",
     target_os = "redox",
     target_os = "fuchsia",
+    target_os = "vita",
 )))]
 fn join_leave_ssm_v4() {
     let socket = Socket::new(Domain::IPV4, Type::DGRAM, None).unwrap();