Move sys::vxworks code to sys::unix

Author: CDirkx

library/std/src/sys/mod.rs

@@ -25,10 +25,7 @@
 mod common;
 
 cfg_if::cfg_if! {
-    if #[cfg(target_os = "vxworks")] {
-        mod vxworks;
-        pub use self::vxworks::*;
-    } else if #[cfg(unix)] {
+    if #[cfg(unix)] {
         mod unix;
         pub use self::unix::*;
     } else if #[cfg(windows)] {

library/std/src/sys/unix/env.rs

@@ -173,3 +173,14 @@ pub mod os {
     pub const EXE_SUFFIX: &str = "";
     pub const EXE_EXTENSION: &str = "";
 }
+
+#[cfg(target_os = "vxworks")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "vxworks";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}

library/std/src/sys/unix/ext/mod.rs

@@ -62,6 +62,8 @@ cfg_if::cfg_if! {
         use crate::os::redox as platform;
         #[cfg(target_os = "solaris")]
         use crate::os::solaris as platform;
+        #[cfg(target_os = "vxworks")]
+        use crate::os::vxworks as platform;
     }
 }
 

library/std/src/sys/unix/mod.rs

@@ -71,6 +71,7 @@ pub fn init() {
         } else if #[cfg(not(any(
             target_os = "emscripten",
             target_os = "fuchsia",
+            target_os = "vxworks",
             // The poll on Darwin doesn't set POLLNVAL for closed fds.
             target_os = "macos",
             target_os = "ios",

library/std/src/sys/unix/process/mod.rs

@@ -4,11 +4,17 @@ pub use crate::ffi::OsString as EnvKey;
 pub use crate::sys_common::process::CommandEnvs;
 
 mod process_common;
-#[cfg(not(target_os = "fuchsia"))]
-#[path = "process_unix.rs"]
-mod process_inner;
-#[cfg(target_os = "fuchsia")]
-#[path = "process_fuchsia.rs"]
-mod process_inner;
-#[cfg(target_os = "fuchsia")]
-mod zircon;
+
+cfg_if::cfg_if! {
+    if #[cfg(target_os = "fuchsia")] {
+        #[path = "process_fuchsia.rs"]
+        mod process_inner;
+        mod zircon;
+    } else if #[cfg(target_os = "vxworks")] {
+        #[path = "process_vxworks.rs"]
+        mod process_inner;
+    } else {
+        #[path = "process_unix.rs"]
+        mod process_inner;
+    }
+}

library/std/src/sys/vxworks/process/process_vxworks.rs renamed to library/std/src/sys/unix/process/process_vxworks.rs

@@ -68,7 +68,7 @@ impl Command {
             let stack_size = thread::min_stack();
 
             // ensure that access to the environment is synchronized
-            let _lock = sys::os::env_lock();
+            let _lock = sys::os::env_read_lock();
 
             let ret = libc::rtpSpawn(
                 self.get_program_cstr().as_ptr(),

library/std/src/sys/unix/rand.rs

@@ -18,7 +18,8 @@ pub fn hashmap_random_keys() -> (u64, u64) {
     not(target_os = "freebsd"),
     not(target_os = "netbsd"),
     not(target_os = "fuchsia"),
-    not(target_os = "redox")
+    not(target_os = "redox"),
+    not(target_os = "vxworks")
 ))]
 mod imp {
     use crate::fs::File;
@@ -237,3 +238,29 @@ mod imp {
         file.read_exact(v).expect("failed to read rand:")
     }
 }
+
+#[cfg(target_os = "vxworks")]
+mod imp {
+    use crate::io;
+    use core::sync::atomic::{AtomicBool, Ordering::Relaxed};
+
+    pub fn fill_bytes(v: &mut [u8]) {
+        static RNG_INIT: AtomicBool = AtomicBool::new(false);
+        while !RNG_INIT.load(Relaxed) {
+            let ret = unsafe { libc::randSecure() };
+            if ret < 0 {
+                panic!("couldn't generate random bytes: {}", io::Error::last_os_error());
+            } else if ret > 0 {
+                RNG_INIT.store(true, Relaxed);
+                break;
+            }
+            unsafe { libc::usleep(10) };
+        }
+        let ret = unsafe {
+            libc::randABytes(v.as_mut_ptr() as *mut libc::c_uchar, v.len() as libc::c_int)
+        };
+        if ret < 0 {
+            panic!("couldn't generate random bytes: {}", io::Error::last_os_error());
+        }
+    }
+}

library/std/src/sys/unix/thread_local_dtor.rs

@@ -92,3 +92,9 @@ pub unsafe fn register_dtor(t: *mut u8, dtor: unsafe extern "C" fn(*mut u8)) {
         }
     }
 }
+
+#[cfg(target_os = "vxworks")]
+pub unsafe fn register_dtor(t: *mut u8, dtor: unsafe extern "C" fn(*mut u8)) {
+    use crate::sys_common::thread_local_dtor::register_dtor_fallback;
+    register_dtor_fallback(t, dtor);
+}