1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package cgosotest 6 7 // This test verifies that Go can access C variables 8 // in shared object file via cgo. 9 10 /* 11 // intentionally write the same LDFLAGS differently 12 // to test correct handling of LDFLAGS. 13 #cgo windows CFLAGS: -DIMPORT_DLL 14 #cgo linux LDFLAGS: -L. -lcgosotest 15 #cgo dragonfly LDFLAGS: -L. -l cgosotest 16 #cgo freebsd LDFLAGS: -L. -l cgosotest 17 #cgo openbsd LDFLAGS: -L. -l cgosotest 18 #cgo solaris LDFLAGS: -L. -lcgosotest 19 #cgo netbsd LDFLAGS: -L. libcgosotest.so 20 #cgo darwin LDFLAGS: -L. libcgosotest.dylib 21 #cgo windows LDFLAGS: -L. libcgosotest.dll 22 23 #include "cgoso_c.h" 24 25 const char* getVar() { 26 return exported_var; 27 } 28 */ 29 import "C" 30 31 import "fmt" 32 33 func Test() { 34 const want = "Hello world" 35 got := C.GoString(C.getVar()) 36 if got != want { 37 panic(fmt.Sprintf("testExportedVar: got %q, but want %q", got, want)) 38 } 39 got = C.GoString(C.exported_var) 40 if got != want { 41 panic(fmt.Sprintf("testExportedVar: got %q, but want %q", got, want)) 42 } 43 } 44
