1 files changed, 30 insertions, 0 deletions
diff --git a/misc/cgo/test/issue4029.c b/misc/cgo/test/issue4029.c
new file mode 100644
index 0000000..e79c5a7
--- /dev/null
+++ b/misc/cgo/test/issue4029.c
@@ -0,0 +1,30 @@
+// 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 !windows,!static
+// +build !darwin !internal_pie,!arm64
+
+#include <stdint.h>
+#include <dlfcn.h>
+
+// Write our own versions of dlopen/dlsym/dlclose so that we represent
+// the opaque handle as a Go uintptr rather than a Go pointer to avoid
+// garbage collector confusion.  See issue 23663.
+
+uintptr_t dlopen4029(char* name, int flags) {
+	return (uintptr_t)(dlopen(name, flags));
+}
+
+uintptr_t dlsym4029(uintptr_t handle, char* name) {
+	return (uintptr_t)(dlsym((void*)(handle), name));
+}
+
+int dlclose4029(uintptr_t handle) {
+	return dlclose((void*)(handle));
+}
+
+void call4029(void *arg) {
+	void (*fn)(void) = arg;
+	fn();
+}