code review 174320043: test: s390[x] specific variants of nilptr.go.

test/nilptr_s390_common.go

Index: test/nilptr_s390_common.go 
=================================================================== 
new file mode 100644 
--- /dev/null 
+++ b/test/nilptr_s390_common.go 
@@ -0,0 +1,23 @@ 
+// skip 
+ 
+// Copyright 2014 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. 
+ 
+// Shared s390 and s390x specific test configuration 
+ 
+package main 
+ 
+import "unsafe" 
+ 
+func sanityCheck() { 
+	// The test only tests what we intend to test if dummy 
+	// starts near minBssOffset uintptr. Otherwise there 
+	// might not be anything mapped at the address that might 
+	// be accidentally dereferenced below. 
+	if uintptr(unsafe.Pointer(&dummy)) > inMemSize + minBssOffset { 
+	panic("dummy too far out") 
+	} else if uintptr(unsafe.Pointer(&dummy)) < minBssOffset { 
+	panic("dummy too close") 
+	} 
+}