libgo: Update to October 24 version of master library.

From-SVN: r204466

1 files changed, 18 insertions, 0 deletions

diff --git a/libgo/go/sync/runtime.go b/libgo/go/sync/runtime.go
index e99599c..3bf47ea 100644
--- a/libgo/go/sync/runtime.go
+++ b/libgo/go/sync/runtime.go
@@ -4,6 +4,8 @@
 
 package sync
 
+import "unsafe"
+
 // defined in package runtime
 
 // Semacquire waits until *s > 0 and then atomically decrements it.
@@ -16,3 +18,19 @@ func runtime_Semacquire(s *uint32)
 // It is intended as a simple wakeup primitive for use by the synchronization
 // library and should not be used directly.
 func runtime_Semrelease(s *uint32)
+
+// Opaque representation of SyncSema in runtime/sema.goc.
+type syncSema [3]uintptr
+
+// Syncsemacquire waits for a pairing Syncsemrelease on the same semaphore s.
+func runtime_Syncsemacquire(s *syncSema)
+
+// Syncsemrelease waits for n pairing Syncsemacquire on the same semaphore s.
+func runtime_Syncsemrelease(s *syncSema, n uint32)
+
+// Ensure that sync and runtime agree on size of syncSema.
+func runtime_Syncsemcheck(size uintptr)
+func init() {
+	var s syncSema
+	runtime_Syncsemcheck(unsafe.Sizeof(s))
+}