netbsd/riscv64.rs: make changes so that this builds again.

src/unix/bsd/netbsdlike/netbsd/riscv64.rs

@@ -1,38 +1,58 @@
+use core::clone::Clone;
+use core::cmp::{
+    Eq,
+    PartialEq,
+};
+use core::fmt::Debug;
+use core::marker::Copy;
+
 use crate::prelude::*;
 use crate::PT_FIRSTMACH;
 
 pub type __greg_t = u64;
 pub type __cpu_simple_lock_nv_t = c_int;
 pub type __gregset = [__greg_t; _NGREG];
-pub type __fregset = [__fpreg; _NFREG];
+pub type __fpregset = [__fpreg; _NFREG];
 
 s! {
     pub struct mcontext_t {
         pub __gregs: __gregset,
-        pub __fregs: __fregset,
+        pub __fpregs: __fpregset,
         __spare: [crate::__greg_t; 7],
     }
 }
 
-s_no_extra_traits! {
-    pub union __fpreg {
-        pub u_u64: u64,
-        pub u_d: c_double,
-    }
+pub union __fpreg {
+    pub u_u64: u64,
+    pub u_d: c_double,
 }
 
-cfg_if! {
-    if #[cfg(feature = "extra_traits")] {
-        impl PartialEq for __fpreg {
-            fn eq(&self, other: &Self) -> bool {
-                unsafe { self.u_u64 == other.u_u64 }
-            }
+impl core::cmp::PartialEq for __fpreg {
+    fn eq(&self, other: &__fpreg) -> bool {
+        unsafe { self.u_u64 == other.u_u64 || self.u_d == other.u_d }
+    }
+}
+impl core::cmp::Eq for __fpreg {}
+impl core::marker::Copy for __fpreg {}
+impl core::clone::Clone for __fpreg {
+    fn clone(&self) -> __fpreg {
+        *self
+    }
+}
+impl hash::Hash for __fpreg {
+    fn hash<H: hash::Hasher>(&self, state: &mut H) {
+        unsafe {
+            self.u_u64.hash(state);
         }
-        impl Eq for __fpreg {}
-        impl hash::Hash for __fpreg {
-            fn hash<H: hash::Hasher>(&self, state: &mut H) {
-                unsafe { self.u_u64.hash(state) };
-            }
+    }
+}
+impl core::fmt::Debug for __fpreg {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        unsafe {
+            f.debug_struct("__fpreg")
+                .field("u_u64", &self.u_u64)
+                .field("u_d", &self.u_d)
+                .finish()
         }
     }
 }