1 //===-- main.c --------------------------------------------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 #include <stdio.h>
10 #include <dlfcn.h>
11 #include <limits.h>
12 #include <string.h>
13 #include <unistd.h>
14 #include <libgen.h>
15 #include <stdlib.h>
16
17 int
main(int argc,char const * argv[])18 main (int argc, char const *argv[])
19 {
20 const char *a_name = "@executable_path/liba.dylib";
21 const char *c_name = "@executable_path/libc.dylib";
22 void *a_dylib_handle = NULL;
23 void *c_dylib_handle = NULL;
24 int (*a_function) (void);
25
26 a_dylib_handle = dlopen (a_name, RTLD_NOW); // Set break point at this line for test_lldb_process_load_and_unload_commands().
27 if (a_dylib_handle == NULL)
28 {
29 fprintf (stderr, "%s\n", dlerror());
30 exit (1);
31 }
32
33 a_function = (int (*) ()) dlsym (a_dylib_handle, "a_function");
34 if (a_function == NULL)
35 {
36 fprintf (stderr, "%s\n", dlerror());
37 exit (2);
38 }
39 printf ("First time around, got: %d\n", a_function ());
40 dlclose (a_dylib_handle);
41
42 c_dylib_handle = dlopen (c_name, RTLD_NOW);
43 if (c_dylib_handle == NULL)
44 {
45 fprintf (stderr, "%s\n", dlerror());
46 exit (3);
47 }
48 a_function = (int (*) ()) dlsym (c_dylib_handle, "c_function");
49 if (a_function == NULL)
50 {
51 fprintf (stderr, "%s\n", dlerror());
52 exit (4);
53 }
54
55 a_dylib_handle = dlopen (a_name, RTLD_NOW);
56 if (a_dylib_handle == NULL)
57 {
58 fprintf (stderr, "%s\n", dlerror());
59 exit (5);
60 }
61
62 a_function = (int (*) ()) dlsym (a_dylib_handle, "a_function");
63 if (a_function == NULL)
64 {
65 fprintf (stderr, "%s\n", dlerror());
66 exit (6);
67 }
68 printf ("Second time around, got: %d\n", a_function ());
69 dlclose (a_dylib_handle);
70
71 int d_function(void);
72 printf ("d_function returns: %d\n", d_function());
73
74 return 0;
75 }
76