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/tmp/gdb-8.1/gdb/gdb-dlfcn.h
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1 /* Platform independent shared object routines for GDB.
2
3 Copyright (C) 2011-2018 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. Return NULL if the loading fails for any
36 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 */
gdb_dlopen
gdb_dlhandle_up gdb_dlopen(const char *filename)
Definition: gdb-dlfcn.c:61
gdb_dlsym
void * gdb_dlsym(const gdb_dlhandle_up &handle, const char *symbol)
Definition: gdb-dlfcn.c:93
dlclose_deleter
Definition: gdb-dlfcn.h:25
gdb_dlhandle_up
std::unique_ptr< void, dlclose_deleter > gdb_dlhandle_up
Definition: gdb-dlfcn.h:32
dlclose_deleter::operator()
void operator()(void *handle) const
Definition: gdb-dlfcn.c:103
symbol
Definition: symtab.h:1049
is_dl_available
int is_dl_available(void)
Definition: gdb-dlfcn.c:113