1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/* Platform independent shared object routines for GDB.
Copyright (C) 2011-2015 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdb-dlfcn.h"
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#elif __MINGW32__
#include <windows.h>
#else
/* Unsupported configuration. */
#define NO_SHARED_LIB
#endif
#ifdef NO_SHARED_LIB
void *
gdb_dlopen (const char *filename)
{
gdb_assert_not_reached ("gdb_dlopen should not be called on this platform.");
}
void *
gdb_dlsym (void *handle, const char *symbol)
{
gdb_assert_not_reached ("gdb_dlsym should not be called on this platform.");
}
struct cleanup *
make_cleanup_dlclose (void *handle)
{
gdb_assert_not_reached ("make_cleanup_dlclose should not be called on this "
"platform.");
}
int
gdb_dlclose (void *handle)
{
gdb_assert_not_reached ("gdb_dlclose should not be called on this platform.");
}
int
is_dl_available (void)
{
return 0;
}
#else /* NO_SHARED_LIB */
void *
gdb_dlopen (const char *filename)
{
void *result;
#ifdef HAVE_DLFCN_H
result = dlopen (filename, RTLD_NOW);
#elif __MINGW32__
result = (void *) LoadLibrary (filename);
#endif
if (result != NULL)
return result;
#ifdef HAVE_DLFCN_H
error (_("Could not load %s: %s"), filename, dlerror());
#else
{
LPVOID buffer;
DWORD dw;
dw = GetLastError();
FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &buffer,
0, NULL);
error (_("Could not load %s: %s"), filename, (char *) buffer);
}
#endif
}
void *
gdb_dlsym (void *handle, const char *symbol)
{
#ifdef HAVE_DLFCN_H
return dlsym (handle, symbol);
#elif __MINGW32__
return (void *) GetProcAddress (handle, symbol);
#endif
}
int
gdb_dlclose (void *handle)
{
#ifdef HAVE_DLFCN_H
return dlclose (handle);
#elif __MINGW32__
return !((int) FreeLibrary (handle));
#endif
}
static void
do_dlclose_cleanup (void *handle)
{
gdb_dlclose (handle);
}
struct cleanup *
make_cleanup_dlclose (void *handle)
{
return make_cleanup (do_dlclose_cleanup, handle);
}
int
is_dl_available (void)
{
return 1;
}
#endif /* NO_SHARED_LIB */
|
