| 1 | /* Platform independent shared object routines for GDB. |
| 2 | |
| 3 | Copyright (C) 2011-2020 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef GDB_DLFCN_H |
| 21 | #define GDB_DLFCN_H |
| 22 | |
| 23 | /* A deleter that closes an open dynamic library. */ |
| 24 | |
| 25 | struct dlclose_deleter |
| 26 | { |
| 27 | void operator() (void *handle) const; |
| 28 | }; |
| 29 | |
| 30 | /* A unique pointer that points to a dynamic library. */ |
| 31 | |
| 32 | typedef std::unique_ptr<void, dlclose_deleter> gdb_dlhandle_up; |
| 33 | |
| 34 | /* Load the dynamic library file named FILENAME, and return a handle |
| 35 | for that dynamic library. Throw an error if the loading fails for |
| 36 | any reason. */ |
| 37 | |
| 38 | gdb_dlhandle_up gdb_dlopen (const char *filename); |
| 39 | |
| 40 | /* Return the address of the symbol named SYMBOL inside the shared |
| 41 | library whose handle is HANDLE. Return NULL when the symbol could |
| 42 | not be found. */ |
| 43 | |
| 44 | void *gdb_dlsym (const gdb_dlhandle_up &handle, const char *symbol); |
| 45 | |
| 46 | /* Return non-zero if the dynamic library functions are available on |
| 47 | this platform. */ |
| 48 | |
| 49 | int is_dl_available(void); |
| 50 | |
| 51 | #endif /* GDB_DLFCN_H */ |