Auto merge of #2359 - devnexen:dfbsd_ucontext_fixes, r=JohnTitor

dragonflybsd complete ucontext debug code.

Author: bors

libc-test/build.rs

@@ -1199,11 +1199,11 @@ fn test_dragonflybsd(target: &str) {
         "termios.h",
         "time.h",
         "ucontext.h",
-        "ufs/ufs/quota.h",
         "unistd.h",
         "util.h",
         "utime.h",
         "utmpx.h",
+        "vfs/ufs/quota.h",
         "wchar.h",
         "iconv.h",
     }

src/unix/bsd/freebsdlike/dragonfly/mod.rs

@@ -584,8 +584,9 @@ cfg_if! {
                 self.mc_ss == other.mc_ss &&
                 self.mc_len == other.mc_len &&
                 self.mc_fpformat == other.mc_fpformat &&
-                self.mc_ownedfp == other.mc_ownedfp
-                // FIXME: self.mc_fpregs == other.mc_fpregs
+                self.mc_ownedfp == other.mc_ownedfp &&
+                self.mc_fpregs.iter().zip(other.mc_fpregs.iter()).
+                all(|(a, b)| a == b)
             }
         }
         impl Eq for mcontext_t {}
@@ -621,10 +622,46 @@ cfg_if! {
                     .field("mc_len", &self.mc_len)
                     .field("mc_fpformat", &self.mc_fpformat)
                     .field("mc_ownedfp", &self.mc_ownedfp)
-                    // FIXME: .field("mc_fpregs", &self.mc_fpregs)
+                    .field("mc_fpregs", &self.mc_fpregs)
                     .finish()
             }
         }
+        impl ::hash::Hash for mcontext_t {
+            fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
+                self.mc_onstack.hash(state);
+                self.mc_rdi.hash(state);
+                self.mc_rsi.hash(state);
+                self.mc_rdx.hash(state);
+                self.mc_rcx.hash(state);
+                self.mc_r8.hash(state);
+                self.mc_r9.hash(state);
+                self.mc_rax.hash(state);
+                self.mc_rbx.hash(state);
+                self.mc_rbp.hash(state);
+                self.mc_r10.hash(state);
+                self.mc_r11.hash(state);
+                self.mc_r10.hash(state);
+                self.mc_r11.hash(state);
+                self.mc_r12.hash(state);
+                self.mc_r13.hash(state);
+                self.mc_r14.hash(state);
+                self.mc_r15.hash(state);
+                self.mc_xflags.hash(state);
+                self.mc_trapno.hash(state);
+                self.mc_addr.hash(state);
+                self.mc_flags.hash(state);
+                self.mc_err.hash(state);
+                self.mc_rip.hash(state);
+                self.mc_cs.hash(state);
+                self.mc_rflags.hash(state);
+                self.mc_rsp.hash(state);
+                self.mc_ss.hash(state);
+                self.mc_len.hash(state);
+                self.mc_fpformat.hash(state);
+                self.mc_ownedfp.hash(state);
+                self.mc_fpregs.hash(state);
+            }
+        }
         impl PartialEq for ucontext_t {
             fn eq(&self, other: &ucontext_t) -> bool {
                 self.uc_sigmask == other.uc_sigmask
@@ -648,6 +685,16 @@ cfg_if! {
                     .finish()
             }
         }
+        impl ::hash::Hash for ucontext_t {
+            fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
+                self.uc_sigmask.hash(state);
+                self.uc_mcontext.hash(state);
+                self.uc_link.hash(state);
+                self.uc_stack.hash(state);
+                self.uc_cofunc.hash(state);
+                self.uc_arg.hash(state);
+            }
+        }
     }
 }