Add more from the std

crates/std/src/sys/sync/mutex/mod.rs

@@ -0,0 +1,47 @@
+cfg_select! {
+    any(
+        all(target_os = "windows", not(target_vendor = "win7")),
+        target_os = "linux",
+        target_os = "android",
+        target_os = "freebsd",
+        target_os = "openbsd",
+        target_os = "motor",
+        target_os = "dragonfly",
+        all(target_family = "wasm", target_feature = "atomics"),
+        target_os = "hermit",
+    ) => {
+        mod futex;
+        pub use futex::Mutex;
+    }
+    target_os = "fuchsia" => {
+        mod fuchsia;
+        pub use fuchsia::Mutex;
+    }
+    any(
+        target_family = "unix",
+        target_os = "teeos",
+    ) => {
+        mod pthread;
+        pub use pthread::Mutex;
+    }
+    all(target_os = "windows", target_vendor = "win7") => {
+        mod windows7;
+        pub use windows7::{Mutex, raw};
+    }
+    all(target_vendor = "fortanix", target_env = "sgx") => {
+        mod sgx;
+        pub use sgx::Mutex;
+    }
+    target_os = "solid_asp3" => {
+        mod itron;
+        pub use itron::Mutex;
+    }
+    target_os = "xous" => {
+        mod xous;
+        pub use xous::Mutex;
+    }
+    _ => {
+        mod no_threads;
+        pub use no_threads::Mutex;
+    }
+}