libgo: update to go1.9

    
    Reviewed-on: https://go-review.googlesource.com/63753

From-SVN: r252767

1 files changed, 4 insertions, 9 deletions

diff --git a/libgo/go/syscall/syscall.go b/libgo/go/syscall/syscall.go
index 91dfa9a..8415383 100644
--- a/libgo/go/syscall/syscall.go
+++ b/libgo/go/syscall/syscall.go
@@ -22,7 +22,10 @@
 // Go repository should be migrated to use the corresponding
 // package in the golang.org/x/sys repository. That is also where updates
 // required by new systems or versions should be applied.
-// See https://golang.org/s/go1.4-syscall for more information.
+// Signal, Errno and SysProcAttr are not yet available in
+// golang.org/x/sys and must still be referenced from the
+// syscall package. See https://golang.org/s/go1.4-syscall
+// for more information.
 //
 package syscall
 
@@ -102,11 +105,3 @@ func (tv *Timeval) Nano() int64 {
 // Getpagesize is provided by the runtime.
 
 func Getpagesize() int
-
-// use is a no-op, but the compiler cannot see that it is.
-// Calling use(p) ensures that p is kept live until that point.
-// This was needed until Go 1.6 to call syscall.Syscall correctly.
-// As of Go 1.6 the compiler handles that case automatically.
-// The uses and definition of use can be removed early in the Go 1.7 cycle.
-//go:noescape
-func use(p unsafe.Pointer)