Move preadv2/pwritev2 to linux_like/linux and android

emscripten does not support preadv2 and pwritev2

Author: Elie-Kh

src/unix/linux_like/android/mod.rs

@@ -3747,6 +3747,20 @@ extern "C" {
         newpath: *const c_char,
         flags: c_uint,
     ) -> c_int;
+    pub fn preadv2(
+        fd: c_int,
+        iov: *const crate::iovec,
+        iovcnt: c_int,
+        offset: off_t,
+        flags: c_int,
+    ) -> ssize_t;
+    pub fn pwritev2(
+        fd: c_int,
+        iov: *const crate::iovec,
+        iovcnt: c_int,
+        offset: off_t,
+        flags: c_int,
+    ) -> ssize_t;
 }
 
 cfg_if! {

src/unix/linux_like/linux/mod.rs

@@ -4360,6 +4360,22 @@ extern "C" {
         flags: c_int,
     ) -> c_int;
     pub fn open_by_handle_at(mount_fd: c_int, handle: *mut file_handle, flags: c_int) -> c_int;
+    #[cfg_attr(gnu_file_offset_bits64, link_name = "preadv64v2")]
+    pub fn preadv2(
+        fd: c_int,
+        iov: *const crate::iovec,
+        iovcnt: c_int,
+        offset: off_t,
+        flags: c_int,
+    ) -> ssize_t;
+    #[cfg_attr(gnu_file_offset_bits64, link_name = "pwritev64v2")]
+    pub fn pwritev2(
+        fd: c_int,
+        iov: *const crate::iovec,
+        iovcnt: c_int,
+        offset: off_t,
+        flags: c_int,
+    ) -> ssize_t;
 }
 
 // LFS64 extensions

src/unix/linux_like/mod.rs

@@ -2093,22 +2093,6 @@ extern "C" {
         buflen: size_t,
         result: *mut *mut passwd,
     ) -> c_int;
-    #[cfg_attr(gnu_file_offset_bits64, link_name = "preadv64v2")]
-    pub fn preadv2(
-        fd: c_int,
-        iov: *const crate::iovec,
-        iovcnt: c_int,
-        offset: off_t,
-        flags: c_int,
-    ) -> ssize_t;
-    #[cfg_attr(gnu_file_offset_bits64, link_name = "pwritev64v2")]
-    pub fn pwritev2(
-        fd: c_int,
-        iov: *const crate::iovec,
-        iovcnt: c_int,
-        offset: off_t,
-        flags: c_int,
-    ) -> ssize_t;
 }
 
 // LFS64 extensions