| 1 | /* Copyright (C) 2010 Oussama El Mfadli, Alexis Hallé |
| 2 | * |
| 3 | * This library is free software; you can redistribute it and/or |
| 4 | * modify it under the terms of the GNU Lesser General Public |
| 5 | * License as published by the Free Software Foundation; either |
| 6 | * version 2.1 of the License, or (at your option) any later version. |
| 7 | * |
| 8 | * This library is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 | * Lesser General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU Lesser General Public |
| 14 | * License along with this library; if not, write to the Free Software |
| 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 16 | */ |
| 17 | |
| 18 | /* The aim of this test is to verify whether ust behaves correctly when |
| 19 | * tracing a marker that is in a dlopen()'d library. It also checks the |
| 20 | * library can be unloaded. |
| 21 | */ |
| 22 | |
| 23 | #include <dlfcn.h> |
| 24 | #include <stdio.h> |
| 25 | #include <ust/marker.h> |
| 26 | |
| 27 | int main() |
| 28 | { |
| 29 | int (*fptr)(); |
| 30 | |
| 31 | trace_mark(from_main_before_lib, "%s", "Event occured in the main program before" |
| 32 | " the opening of the library\n"); |
| 33 | void *lib_handle = dlopen("libdummy.so", RTLD_LAZY); |
| 34 | |
| 35 | if (lib_handle == NULL) { |
| 36 | fprintf(stderr, "%s\n", dlerror()); |
| 37 | return 1; |
| 38 | } |
| 39 | |
| 40 | fptr = (int (*)())dlsym(lib_handle, "exported_function"); |
| 41 | |
| 42 | if ( fptr == NULL) { |
| 43 | fprintf(stderr, "%s\n", dlerror()); |
| 44 | return 1; |
| 45 | } |
| 46 | |
| 47 | (*fptr)(); |
| 48 | dlclose(lib_handle); |
| 49 | |
| 50 | trace_mark(from_main_after_lib,"%s", "Event occured in the main program after " |
| 51 | "the library has been closed\n"); |
| 52 | |
| 53 | return 0; |
| 54 | } |