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| //===-- main.c --------------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <stdio.h>
#include <dlfcn.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <libgen.h>
#include <stdlib.h>
int
main (int argc, char const *argv[])
{
#if defined (__APPLE__)
const char *a_name = "@executable_path/libloadunload_a.dylib";
const char *c_name = "@executable_path/libloadunload_c.dylib";
#else
const char *a_name = "libloadunload_a.so";
const char *c_name = "libloadunload_c.so";
#endif
void *a_dylib_handle = NULL;
void *c_dylib_handle = NULL;
int (*a_function) (void);
a_dylib_handle = dlopen (a_name, RTLD_NOW); // Set break point at this line for test_lldb_process_load_and_unload_commands().
if (a_dylib_handle == NULL)
{
fprintf (stderr, "%s\n", dlerror());
exit (1);
}
a_function = (int (*) ()) dlsym (a_dylib_handle, "a_function");
if (a_function == NULL)
{
fprintf (stderr, "%s\n", dlerror());
exit (2);
}
printf ("First time around, got: %d\n", a_function ());
dlclose (a_dylib_handle);
c_dylib_handle = dlopen (c_name, RTLD_NOW);
if (c_dylib_handle == NULL)
{
fprintf (stderr, "%s\n", dlerror());
exit (3);
}
a_function = (int (*) ()) dlsym (c_dylib_handle, "c_function");
if (a_function == NULL)
{
fprintf (stderr, "%s\n", dlerror());
exit (4);
}
a_dylib_handle = dlopen (a_name, RTLD_NOW);
if (a_dylib_handle == NULL)
{
fprintf (stderr, "%s\n", dlerror());
exit (5);
}
a_function = (int (*) ()) dlsym (a_dylib_handle, "a_function");
if (a_function == NULL)
{
fprintf (stderr, "%s\n", dlerror());
exit (6);
}
printf ("Second time around, got: %d\n", a_function ());
dlclose (a_dylib_handle);
int d_function(void);
printf ("d_function returns: %d\n", d_function());
return 0;
}
|