Auto merge of #2356 - devnexen:fbsd_ucontext_aarch64, r=Amanieu

freebsd arm64 ucontext addition.

Author: bors

src/unix/bsd/freebsdlike/freebsd/aarch64.rs

@@ -17,5 +17,130 @@ cfg_if! {
     }
 }
 
+s_no_extra_traits! {
+    pub struct gpregs {
+        pub gp_x: [::register_t; 30],
+        pub gp_lr: ::register_t,
+        pub gp_sp: ::register_t,
+        pub gp_elr: ::register_t,
+        pub gp_spsr: u32,
+        pub gp_pad: ::c_int,
+    }
+
+    pub struct fpregs {
+        pub fp_q: u128,
+        pub fp_sr: u32,
+        pub fp_cr: u32,
+        pub fp_flags: ::c_int,
+        pub fp_pad: ::c_int,
+    }
+
+    pub struct mcontext_t {
+        pub mc_gpregs: gpregs,
+        pub mc_fpregs: fpregs,
+        pub mc_flags: ::c_int,
+        pub mc_pad: ::c_int,
+        pub mc_spare: [u64; 8],
+    }
+}
+
+cfg_if! {
+    if #[cfg(feature = "extra_traits")] {
+        impl PartialEq for gpregs {
+            fn eq(&self, other: &gpregs) -> bool {
+                self.gp_x.iter().zip(other.gp_x.iter()).all(|(a, b)| a == b) &&
+                self.gp_lr == other.gp_lr &&
+                self.gp_sp == other.gp_sp &&
+                self.gp_elr == other.gp_elr &&
+                self.gp_spsr == other.gp_spsr &&
+                self.gp_pad == other.gp_pad
+            }
+        }
+        impl Eq for gpregs {}
+        impl ::fmt::Debug for gpregs {
+            fn fmt(&self, f: &mut ::fmt::Formatter) -> ::fmt::Result {
+                f.debug_struct("gpregs")
+                    .field("gp_x", &self.gp_x)
+                    .field("gp_lr", &self.gp_lr)
+                    .field("gp_sp", &self.gp_sp)
+                    .field("gp_elr", &self.gp_elr)
+                    .field("gp_spsr", &self.gp_spsr)
+                    .field("gp_pad", &self.gp_pad)
+                    .finish()
+            }
+        }
+        impl ::hash::Hash for gpregs {
+            fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
+                self.gp_x.hash(state);
+                self.gp_lr.hash(state);
+                self.gp_sp.hash(state);
+                self.gp_elr.hash(state);
+                self.gp_spsr.hash(state);
+                self.gp_pad.hash(state);
+            }
+        }
+        impl PartialEq for fpregs {
+            fn eq(&self, other: &fpregs) -> bool {
+                self.fp_q == other.fp_q &&
+                self.fp_sr == other.fp_sr &&
+                self.fp_cr == other.fp_cr &&
+                self.fp_flags == other.fp_flags &&
+                self.fp_pad == other.fp_pad
+            }
+        }
+        impl Eq for fpregs {}
+        impl ::fmt::Debug for fpregs {
+            fn fmt(&self, f: &mut ::fmt::Formatter) -> ::fmt::Result {
+                f.debug_struct("fpregs")
+                    .field("fp_q", &self.fp_q)
+                    .field("fp_sr", &self.fp_sr)
+                    .field("fp_cr", &self.fp_cr)
+                    .field("fp_flags", &self.fp_flags)
+                    .field("fp_pad", &self.fp_pad)
+                    .finish()
+            }
+        }
+        impl ::hash::Hash for fpregs {
+            fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
+                self.fp_q.hash(state);
+                self.fp_sr.hash(state);
+                self.fp_cr.hash(state);
+                self.fp_flags.hash(state);
+                self.fp_pad.hash(state);
+            }
+        }
+        impl PartialEq for mcontext_t {
+            fn eq(&self, other: &mcontext_t) -> bool {
+                self.mc_gpregs == other.mc_gpregs &&
+                self.mc_fpregs == other.mc_fpregs &&
+                self.mc_flags == other.mc_flags &&
+                self.mc_pad == other.mc_pad &&
+                self.mc_spare.iter().zip(other.mc_spare.iter()).all(|(a, b)| a == b)
+            }
+        }
+        impl Eq for mcontext_t {}
+        impl ::fmt::Debug for mcontext_t {
+            fn fmt(&self, f: &mut ::fmt::Formatter) -> ::fmt::Result {
+                f.debug_struct("mcontext_t")
+                    .field("mc_gpregs", &self.mc_gpregs)
+                    .field("mc_fpregs", &self.mc_fpregs)
+                    .field("mc_flags", &self.mc_flags)
+                    .field("mc_pad", &self.mc_pad)
+                    .field("mc_spare", &self.mc_spare)
+                    .finish()
+            }
+        }
+        impl ::hash::Hash for mcontext_t {
+            fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
+                self.mc_gpregs.hash(state);
+                self.mc_fpregs.hash(state);
+                self.mc_flags.hash(state);
+                self.mc_pad.hash(state);
+                self.mc_spare.hash(state);
+            }
+        }
+    }
+}
+
 pub const MAP_32BIT: ::c_int = 0x00080000;
 pub const MINSIGSTKSZ: ::size_t = 4096; // 1024 * 4