libgo: update to Go1.10beta1

    
    Update the Go library to the 1.10beta1 release.
    
    Requires a few changes to the compiler for modifications to the map
    runtime code, and to handle some nowritebarrier cases in the runtime.
    
    Reviewed-on: https://go-review.googlesource.com/86455

gotools/:
	* Makefile.am (go_cmd_vet_files): New variable.
	(go_cmd_buildid_files, go_cmd_test2json_files): New variables.
	(s-zdefaultcc): Change from constants to functions.
	(noinst_PROGRAMS): Add vet, buildid, and test2json.
	(cgo$(EXEEXT)): Link against $(LIBGOTOOL).
	(vet$(EXEEXT)): New target.
	(buildid$(EXEEXT)): New target.
	(test2json$(EXEEXT)): New target.
	(install-exec-local): Install all $(noinst_PROGRAMS).
	(uninstall-local): Uninstasll all $(noinst_PROGRAMS).
	(check-go-tool): Depend on $(noinst_PROGRAMS).  Copy down
	objabi.go.
	(check-runtime): Depend on $(noinst_PROGRAMS).
	(check-cgo-test, check-carchive-test): Likewise.
	(check-vet): New target.
	(check): Depend on check-vet.  Look at cmd_vet-testlog.
	(.PHONY): Add check-vet.
	* Makefile.in: Rebuild.

From-SVN: r256365

1 files changed, 8 insertions, 1 deletions

diff --git a/libgo/go/syscall/syscall.go b/libgo/go/syscall/syscall.go
index 8415383..8e785dd 100644
--- a/libgo/go/syscall/syscall.go
+++ b/libgo/go/syscall/syscall.go
@@ -86,22 +86,29 @@ var dummy *byte
 
 const sizeofPtr uintptr = uintptr(unsafe.Sizeof(dummy))
 
+// Unix returns ts as the number of seconds and nanoseconds elapsed since the
+// Unix epoch.
 func (ts *Timespec) Unix() (sec int64, nsec int64) {
 	return int64(ts.Sec), int64(ts.Nsec)
 }
 
+// Unix returns tv as the number of seconds and nanoseconds elapsed since the
+// Unix epoch.
 func (tv *Timeval) Unix() (sec int64, nsec int64) {
 	return int64(tv.Sec), int64(tv.Usec) * 1000
 }
 
+// Nano returns ts as the number of nanoseconds elapsed since the Unix epoch.
 func (ts *Timespec) Nano() int64 {
 	return int64(ts.Sec)*1e9 + int64(ts.Nsec)
 }
 
+// Nano returns tv as the number of nanoseconds elapsed since the Unix epoch.
 func (tv *Timeval) Nano() int64 {
 	return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
 }
 
-// Getpagesize is provided by the runtime.
+// Getpagesize and Exit are provided by the runtime.
 
 func Getpagesize() int
+func Exit(code int)