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 //go:build !windows && !static && !(darwin && internal)
6 
7 #include <stdint.h>
8 #include <dlfcn.h>
9 
10 // Write our own versions of dlopen/dlsym/dlclose so that we represent
11 // the opaque handle as a Go uintptr rather than a Go pointer to avoid
12 // garbage collector confusion.  See issue 23663.
13 
dlopen4029(char * name,int flags)14 uintptr_t dlopen4029(char* name, int flags) {
15 	return (uintptr_t)(dlopen(name, flags));
16 }
17 
dlsym4029(uintptr_t handle,char * name)18 uintptr_t dlsym4029(uintptr_t handle, char* name) {
19 	return (uintptr_t)(dlsym((void*)(handle), name));
20 }
21 
dlclose4029(uintptr_t handle)22 int dlclose4029(uintptr_t handle) {
23 	return dlclose((void*)(handle));
24 }
25 
call4029(void * arg)26 void call4029(void *arg) {
27 	void (*fn)(void) = arg;
28 	fn();
29 }
30