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  // +build !windows,!static
       6  // +build !darwin !internal_pie,!arm64
       7  
       8  #include <stdint.h>
       9  #include <dlfcn.h>
      10  
      11  // Write our own versions of dlopen/dlsym/dlclose so that we represent
      12  // the opaque handle as a Go uintptr rather than a Go pointer to avoid
      13  // garbage collector confusion.  See issue 23663.
      14  
      15  uintptr_t dlopen4029(char* name, int flags) {
      16  	return (uintptr_t)(dlopen(name, flags));
      17  }
      18  
      19  uintptr_t dlsym4029(uintptr_t handle, char* name) {
      20  	return (uintptr_t)(dlsym((void*)(handle), name));
      21  }
      22  
      23  int dlclose4029(uintptr_t handle) {
      24  	return dlclose((void*)(handle));
      25  }
      26  
      27  void call4029(void *arg) {
      28  	void (*fn)(void) = arg;
      29  	fn();
      30  }