Auto merge of #21959 - dhuseby:bitrig-support, r=brson

This patch adds the necessary pieces to support rust on Bitrig https://bitrig.org

src/test/run-pass/dupe-first-attr.rc

@@ -26,6 +26,9 @@ mod hello;
 #[cfg(target_os = "dragonfly")]
 mod hello;
 
+#[cfg(target_os = "bitrig")]
+mod hello;
+
 #[cfg(target_os = "android")]
 mod hello;
 

src/test/run-pass/intrinsic-alignment.rs

@@ -42,6 +42,18 @@ mod m {
     }
 }
 
+#[cfg(target_os = "bitrig")]
+mod m {
+    #[main]
+    #[cfg(target_arch = "x86_64")]
+    pub fn main() {
+        unsafe {
+            assert_eq!(::rusti::pref_align_of::<u64>(), 8u);
+            assert_eq!(::rusti::min_align_of::<u64>(), 8u);
+        }
+    }
+}
+
 #[cfg(target_os = "windows")]
 mod m {
     #[main]

src/test/run-pass/lang-item-public.rs

@@ -37,7 +37,7 @@ extern {}
 #[link(name = "c")]
 extern {}
 
-#[cfg(target_os = "openbsd")]
+#[cfg(any(target_os = "bitrig", target_os = "openbsd"))]
 #[link(name = "c")]
 extern {}
 

src/test/run-pass/out-of-stack-new-thread-no-split.rs

@@ -12,6 +12,7 @@
 //ignore-freebsd
 //ignore-ios
 //ignore-dragonfly
+//ignore-bitrig
 
 #![feature(asm)]
 

src/test/run-pass/out-of-stack-no-split.rs

@@ -13,6 +13,7 @@
 //ignore-freebsd
 //ignore-ios
 //ignore-dragonfly
+//ignore-bitrig
 
 #![feature(asm)]
 

src/test/run-pass/rec-align-u64.rs

@@ -55,6 +55,15 @@ mod m {
     }
 }
 
+#[cfg(target_os = "bitrig")]
+mod m {
+    #[cfg(target_arch = "x86_64")]
+    pub mod m {
+        pub fn align() -> uint { 8u }
+        pub fn size() -> uint { 16u }
+    }
+}
+
 #[cfg(target_os = "windows")]
 mod m {
     #[cfg(target_arch = "x86")]

src/test/run-pass/x86stdcall.rs

@@ -34,6 +34,7 @@ pub fn main() {
           target_os = "linux",
           target_os = "freebsd",
           target_os = "dragonfly",
+          target_os = "bitrig",
           target_os = "openbsd",
           target_os = "android"))]
 pub fn main() { }