4 files changed, 81 insertions, 0 deletions
diff --git a/misc/cgo/testsovar/testdata/cgoso.go b/misc/cgo/testsovar/testdata/cgoso.go
new file mode 100644
index 0000000..d9deb55
--- /dev/null
+++ b/misc/cgo/testsovar/testdata/cgoso.go
@@ -0,0 +1,44 @@
+// 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.
+
+package cgosotest
+
+// This test verifies that Go can access C variables
+// in shared object file via cgo.
+
+/*
+// intentionally write the same LDFLAGS differently
+// to test correct handling of LDFLAGS.
+#cgo windows CFLAGS: -DIMPORT_DLL
+#cgo linux LDFLAGS: -L. -lcgosotest
+#cgo dragonfly LDFLAGS: -L. -l cgosotest
+#cgo freebsd LDFLAGS: -L. -l cgosotest
+#cgo openbsd LDFLAGS: -L. -l cgosotest
+#cgo solaris LDFLAGS: -L. -lcgosotest
+#cgo netbsd LDFLAGS: -L. libcgosotest.so
+#cgo darwin LDFLAGS: -L. libcgosotest.dylib
+#cgo windows LDFLAGS: -L. libcgosotest.a
+#cgo aix LDFLAGS: -L. -l cgosotest
+
+#include "cgoso_c.h"
+
+const char* getVar() {
+	    return exported_var;
+}
+*/
+import "C"
+
+import "fmt"
+
+func Test() {
+	const want = "Hello world"
+	got := C.GoString(C.getVar())
+	if got != want {
+		panic(fmt.Sprintf("testExportedVar: got %q, but want %q", got, want))
+	}
+	got = C.GoString(C.exported_var)
+	if got != want {
+		panic(fmt.Sprintf("testExportedVar: got %q, but want %q", got, want))
+	}
+}
diff --git a/misc/cgo/testsovar/testdata/cgoso_c.c b/misc/cgo/testsovar/testdata/cgoso_c.c
new file mode 100644
index 0000000..a448c01
--- /dev/null
+++ b/misc/cgo/testsovar/testdata/cgoso_c.c
@@ -0,0 +1,7 @@
+// 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 ignore
+
+const char *exported_var = "Hello world";
diff --git a/misc/cgo/testsovar/testdata/cgoso_c.h b/misc/cgo/testsovar/testdata/cgoso_c.h
new file mode 100644
index 0000000..640db7b
--- /dev/null
+++ b/misc/cgo/testsovar/testdata/cgoso_c.h
@@ -0,0 +1,17 @@
+// 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 ignore
+
+#ifdef WIN32
+#if defined(EXPORT_DLL)
+#    define VAR __declspec(dllexport)
+#elif defined(IMPORT_DLL)
+#    define VAR __declspec(dllimport)
+#endif
+#else
+#    define VAR extern
+#endif
+
+VAR const char *exported_var;
diff --git a/misc/cgo/testsovar/testdata/main.go b/misc/cgo/testsovar/testdata/main.go
new file mode 100644
index 0000000..87b52ce
--- /dev/null
+++ b/misc/cgo/testsovar/testdata/main.go
@@ -0,0 +1,13 @@
+// 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 ignore
+
+package main
+
+import "cgosotest"
+
+func main() {
+	cgosotest.Test()
+}