libgo: Update to go1.6rc1.

    
    Reviewed-on: https://go-review.googlesource.com/19200

From-SVN: r233110

1 files changed, 18 insertions, 0 deletions

diff --git a/libgo/go/runtime/os_linux_mips64x.go b/libgo/go/runtime/os_linux_mips64x.go
new file mode 100644
index 0000000..4d2e9e8
--- /dev/null
+++ b/libgo/go/runtime/os_linux_mips64x.go
@@ -0,0 +1,18 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build mips64 mips64le
+// +build linux
+
+package runtime
+
+var randomNumber uint32
+
+//go:nosplit
+func cputicks() int64 {
+	// Currently cputicks() is used in blocking profiler and to seed fastrand1().
+	// nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
+	// randomNumber provides better seeding of fastrand1.
+	return nanotime() + int64(randomNumber)
+}