Test for a dynamically linked library

[ust.git] / tests / dlopen / dlopen.c

diff --git a/tests/dlopen/dlopen.c b/tests/dlopen/dlopen.c
new file mode 100644 (file)
index 0000000..9fb0edd
--- /dev/null
+++ b/tests/dlopen/dlopen.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 2010  Oussama El Mfadli, Alexis Hallé
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <ust/marker.h>
+
+int main()
+{
+       int (*fptr)();
+
+       trace_mark(ust, from_main_before_lib, "%s", "Event occured in the main program before"
+                                               " the opening of the library\n");
+       void *lib_handle = dlopen("libdummy.so", RTLD_LAZY);
+
+       if (lib_handle == NULL) {
+               fprintf(stderr, "%s\n", dlerror());
+               return 1;
+       }
+
+       fptr = (int (*)())dlsym(lib_handle, "exported_function");
+
+       if ( fptr == NULL) {
+               fprintf(stderr, "%s\n", dlerror());
+               return 1;
+       }
+
+       (*fptr)();
+       dlclose(lib_handle);
+
+       trace_mark(ust, from_main_after_lib,"%s", "Event occured in the main program after "
+                                               "the library has been closed\n");
+
+       return 0;
+}