forked from OSchip/llvm-project
76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
//===-- main.c --------------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include <stdio.h>
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#include <dlfcn.h>
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#include <limits.h>
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#include <string.h>
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#include <unistd.h>
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#include <libgen.h>
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#include <stdlib.h>
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int
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main (int argc, char const *argv[])
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{
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const char *a_name = "@executable_path/liba.dylib";
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const char *c_name = "@executable_path/libc.dylib";
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void *a_dylib_handle = NULL;
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void *c_dylib_handle = NULL;
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int (*a_function) (void);
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a_dylib_handle = dlopen (a_name, RTLD_NOW); // Set break point at this line for test_lldb_process_load_and_unload_commands().
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if (a_dylib_handle == NULL)
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{
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fprintf (stderr, "%s\n", dlerror());
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exit (1);
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}
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a_function = (int (*) ()) dlsym (a_dylib_handle, "a_function");
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if (a_function == NULL)
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{
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fprintf (stderr, "%s\n", dlerror());
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exit (2);
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}
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printf ("First time around, got: %d\n", a_function ());
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dlclose (a_dylib_handle);
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c_dylib_handle = dlopen (c_name, RTLD_NOW);
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if (c_dylib_handle == NULL)
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{
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fprintf (stderr, "%s\n", dlerror());
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exit (3);
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}
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a_function = (int (*) ()) dlsym (c_dylib_handle, "c_function");
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if (a_function == NULL)
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{
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fprintf (stderr, "%s\n", dlerror());
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exit (4);
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}
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a_dylib_handle = dlopen (a_name, RTLD_NOW);
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if (a_dylib_handle == NULL)
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{
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fprintf (stderr, "%s\n", dlerror());
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exit (5);
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}
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a_function = (int (*) ()) dlsym (a_dylib_handle, "a_function");
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if (a_function == NULL)
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{
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fprintf (stderr, "%s\n", dlerror());
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exit (6);
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}
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printf ("Second time around, got: %d\n", a_function ());
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dlclose (a_dylib_handle);
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int d_function(void);
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printf ("d_function returns: %d\n", d_function());
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return 0;
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}
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