diff --git a/misc/cgo/testshared/shared_test.go b/misc/cgo/testshared/shared_test.go
index 41a24efe22..1f426bb90b 100644
--- a/misc/cgo/testshared/shared_test.go
+++ b/misc/cgo/testshared/shared_test.go
@@ -917,3 +917,10 @@ func TestTestInstalledShared(t *testing.T) {
 func TestGeneratedMethod(t *testing.T) {
 	goCmd(t, "install", "-buildmode=shared", "-linkshared", "issue25065")
 }
+
+// Test use of shared library struct with generated hash function.
+// Issue 30768.
+func TestGeneratedHash(t *testing.T) {
+	goCmd(nil, "install", "-buildmode=shared", "-linkshared", "issue30768/issue30768lib")
+	goCmd(nil, "test", "-linkshared", "issue30768")
+}
diff --git a/misc/cgo/testshared/src/issue30768/issue30768lib/lib.go b/misc/cgo/testshared/src/issue30768/issue30768lib/lib.go
new file mode 100644
index 0000000000..9e45ebe683
--- /dev/null
+++ b/misc/cgo/testshared/src/issue30768/issue30768lib/lib.go
@@ -0,0 +1,11 @@
+// Copyright 2019 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 issue30768lib
+
+// S is a struct that requires a generated hash function.
+type S struct {
+	A string
+	B int
+}
diff --git a/misc/cgo/testshared/src/issue30768/x_test.go b/misc/cgo/testshared/src/issue30768/x_test.go
new file mode 100644
index 0000000000..228da6f602
--- /dev/null
+++ b/misc/cgo/testshared/src/issue30768/x_test.go
@@ -0,0 +1,22 @@
+// Copyright 2019 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 issue30768_test
+
+import (
+	"testing"
+
+	"issue30768/issue30768lib"
+)
+
+type s struct {
+	s issue30768lib.S
+}
+
+func Test30768(t *testing.T) {
+	// Calling t.Log will convert S to an empty interface,
+	// which will force a reference to the generated hash function,
+	// defined in the shared library.
+	t.Log(s{})
+}
diff --git a/src/cmd/link/internal/ld/lib.go b/src/cmd/link/internal/ld/lib.go
index 2cb7ae72e4..e64a1e2b53 100644
--- a/src/cmd/link/internal/ld/lib.go
+++ b/src/cmd/link/internal/ld/lib.go
@@ -1802,7 +1802,15 @@ func ldshlibsyms(ctxt *Link, shlib string) {
 		if elf.ST_TYPE(elfsym.Info) == elf.STT_NOTYPE || elf.ST_TYPE(elfsym.Info) == elf.STT_SECTION {
 			continue
 		}
-		lsym := ctxt.Syms.Lookup(elfsym.Name, 0)
+
+		// Symbols whose names start with "type." are compiler
+		// generated, so make functions with that prefix internal.
+		ver := 0
+		if elf.ST_TYPE(elfsym.Info) == elf.STT_FUNC && strings.HasPrefix(elfsym.Name, "type.") {
+			ver = sym.SymVerABIInternal
+		}
+
+		lsym := ctxt.Syms.Lookup(elfsym.Name, ver)
 		// Because loadlib above loads all .a files before loading any shared
 		// libraries, any non-dynimport symbols we find that duplicate symbols
 		// already loaded should be ignored (the symbols from the .a files
@@ -1830,7 +1838,7 @@ func ldshlibsyms(ctxt *Link, shlib string) {
 		// the ABIs are actually different. We might have to
 		// mangle Go function names in the .so to include the
 		// ABI.
-		if elf.ST_TYPE(elfsym.Info) == elf.STT_FUNC {
+		if elf.ST_TYPE(elfsym.Info) == elf.STT_FUNC && ver == 0 {
 			alias := ctxt.Syms.Lookup(elfsym.Name, sym.SymVerABIInternal)
 			if alias.Type != 0 {
 				continue