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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/**********************************************************************
** Copyright (C) 2000-2002 Trolltech AS. All rights reserved.
**
** This file is part of the Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include "qlibrary_p.h"
#ifndef QT_NO_COMPONENT
/*
The platform dependent implementations of
- loadLibrary
- freeLibrary
- resolveSymbol
It's not too hard to guess what the functions do.
*/
#if defined(Q_OS_HPUX)
// for HP-UX < 11.x and 32 bit
#include <dl.h>
bool QLibraryPrivate::loadLibrary()
{
if ( pHnd )
return TRUE;
QString filename = library->library();
pHnd = (void*)shl_load( filename.latin1(), BIND_DEFERRED | BIND_NONFATAL | DYNAMIC_PATH, 0 );
#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
if ( !pHnd )
qDebug( "Failed to load library %s!", filename.latin1() );
#endif
return pHnd != 0;
}
bool QLibraryPrivate::freeLibrary()
{
if ( !pHnd )
return TRUE;
if ( !shl_unload( (shl_t)pHnd ) ) {
pHnd = 0;
return TRUE;
}
return FALSE;
}
void* QLibraryPrivate::resolveSymbol( const char* symbol )
{
if ( !pHnd )
return 0;
void* address = 0;
if ( shl_findsym( (shl_t*)&pHnd, symbol, TYPE_UNDEFINED, address ) < 0 ) {
#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
qDebug( "Couldn't resolve symbol \"%s\"", symbol );
#endif
return 0;
}
return address;
}
#elif defined(_NULL_LIB_)
bool QLibraryPrivate::loadLibrary()
{
//qDebug("QLibraryPrivate::loadLibrary\n");
return FALSE;
}
bool QLibraryPrivate::freeLibrary()
{
//qDebug("QLibraryPrivate::freeLibrary\n");
return FALSE;
}
void* QLibraryPrivate::resolveSymbol( const char* symbol )
{
//qDebug("QLibraryPrivate::resolveSymbol\n");
return FALSE;
}
#elif defined(Q_OS_MACX)
#define ENUM_DYLD_BOOL
enum DYLD_BOOL {
DYLD_FALSE,
DYLD_TRUE
};
#include <mach-o/dyld.h>
typedef struct {
NSObjectFileImage img;
NSModule mod;
} DyldLibDesc;
bool QLibraryPrivate::loadLibrary()
{
// qDebug("QLibraryPrivate::loadLibrary\n");
// return FALSE;
if ( pHnd )
return TRUE;
QString filename = library->library();
NSObjectFileImage img = 0;
NSModule mod = 0;
NSObjectFileImageReturnCode ret = NSCreateObjectFileImageFromFile( filename.latin1() , &img );
if ( ret != NSObjectFileImageSuccess ) {
qWarning( "Error in NSCreateObjectFileImageFromFile(): %d; Filename: %s", ret, filename.latin1() );
if (ret == NSObjectFileImageAccess) {
qWarning ("(NSObjectFileImageAccess)" );
}
} else {
mod = NSLinkModule(img, filename.latin1(), NSLINKMODULE_OPTION_BINDNOW |
NSLINKMODULE_OPTION_PRIVATE |
NSLINKMODULE_OPTION_RETURN_ON_ERROR);
if (mod == 0) {
qWarning( "Error in NSLinkModule()" );
NSDestroyObjectFileImage(img);
}
}
DyldLibDesc* desc = 0;
if (img != 0 && mod != 0) {
desc = new DyldLibDesc;
desc->img = img;
desc->mod = mod;
}
pHnd = desc;
return pHnd != 0;
}
bool QLibraryPrivate::freeLibrary()
{
//qDebug("QLibraryPrivate::freeLibrary\n");
//return FALSE;
if ( !pHnd )
return TRUE;
DyldLibDesc* desc = (DyldLibDesc*) pHnd;
NSModule mod = desc->mod;
NSObjectFileImage img = desc->img;
bool success = NSUnLinkModule(mod, NSUNLINKMODULE_OPTION_NONE);
if ( success ) {
NSDestroyObjectFileImage(img);
delete desc;
pHnd = 0;
}
#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
else {
qWarning( "Error in NSUnLinkModule()" );
}
#endif
return pHnd == 0;
}
void* QLibraryPrivate::resolveSymbol( const char* symbol )
{
//qDebug("QLibraryPrivate::resolveSymbol\n");
//return FALSE;
if ( !pHnd )
return 0;
DyldLibDesc* desc = (DyldLibDesc*) pHnd;
NSSymbol sym = NSLookupSymbolInModule(desc->mod, symbol);
void* address = 0;
if (sym != 0) {
address = NSAddressOfSymbol(sym);
}
#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
if ( address == 0 )
qWarning( "Cannot find symbol: %s", symbol );
#endif
return address;
}
#else
// Something else, assuming POSIX
#include <dlfcn.h>
bool QLibraryPrivate::loadLibrary()
{
if ( pHnd )
return TRUE;
QString filename = library->library();
pHnd = dlopen( filename.latin1() , RTLD_LAZY );
// #if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
if ( !pHnd )
qWarning( "%s", dlerror() );
// #endif
return pHnd != 0;
}
bool QLibraryPrivate::freeLibrary()
{
if ( !pHnd )
return TRUE;
int ec = dlclose( pHnd );
if ( !ec )
pHnd = 0;
#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
else {
const char* error = dlerror();
if ( error )
qWarning( "%s", error );
}
#endif
return pHnd == 0;
}
void* QLibraryPrivate::resolveSymbol( const char* f )
{
if ( !pHnd )
return 0;
void* address = dlsym( pHnd, f );
#if defined(QT_DEBUG) || defined(QT_DEBUG_COMPONENT)
const char* error = dlerror();
if ( error )
qWarning( "%s", error );
#endif
return address;
}
#endif // POSIX
#endif // QT_NO_COMPONENT
|
