libgo: update to Go 1.8 release candidate 1

    
    Compiler changes:
      * Change map assignment to use mapassign and assign value directly.
      * Change string iteration to use decoderune, faster for ASCII strings.
      * Change makeslice to take int, and use makeslice64 for larger values.
      * Add new noverflow field to hmap struct used for maps.
    
    Unresolved problems, to be fixed later:
      * Commented out test in go/types/sizes_test.go that doesn't compile.
      * Commented out reflect.TestStructOf test for padding after zero-sized field.
    
    Reviewed-on: https://go-review.googlesource.com/35231

gotools/:
	Updates for Go 1.8rc1.
	* Makefile.am (go_cmd_go_files): Add bug.go.
	(s-zdefaultcc): Write defaultPkgConfig.
	* Makefile.in: Rebuild.

From-SVN: r244456

1 files changed, 7 insertions, 2 deletions

diff --git a/libgo/go/runtime/export_mmap_test.go b/libgo/go/runtime/export_mmap_test.go
index 7bde44dc430..6e05bb9fbb7 100644
--- a/libgo/go/runtime/export_mmap_test.go
+++ b/libgo/go/runtime/export_mmap_test.go
@@ -2,14 +2,19 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build ignore
-
 // Export guts for testing.
 
 package runtime
 
 var Mmap = mmap
+var Munmap = munmap
+var Errno = errno
 
 const ENOMEM = _ENOMEM
 const MAP_ANON = _MAP_ANON
 const MAP_PRIVATE = _MAP_PRIVATE
+const MAP_FIXED = _MAP_FIXED
+
+func GetPhysPageSize() uintptr {
+	return physPageSize
+}