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
|
/*
* Emulator initialisation code
*
* Copyright 2000 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <pthread.h>
#include "wine/library.h"
#include "main.h"
#ifdef __APPLE__
__asm__(".zerofill WINE_DOS, WINE_DOS, ___wine_dos, 0x40000000");
__asm__(".zerofill WINE_SHAREDHEAP, WINE_SHAREDHEAP, ___wine_shared_heap, 0x03000000");
extern char __wine_dos[0x40000000], __wine_shared_heap[0x03000000];
static const struct wine_preload_info wine_main_preload_info[] =
{
{ __wine_dos, sizeof(__wine_dos) }, /* DOS area + PE exe */
{ __wine_shared_heap, sizeof(__wine_shared_heap) }, /* shared user data + shared heap */
{ 0, 0 } /* end of list */
};
static inline void reserve_area( void *addr, size_t size )
{
wine_anon_mmap( addr, size, PROT_NONE, MAP_FIXED | MAP_NORESERVE );
wine_mmap_add_reserved_area( addr, size );
}
#else /* __APPLE__ */
/* the preloader will set this variable */
const struct wine_preload_info *wine_main_preload_info = NULL;
static inline void reserve_area( void *addr, size_t size )
{
wine_mmap_add_reserved_area( addr, size );
}
#endif /* __APPLE__ */
/***********************************************************************
* check_command_line
*
* Check if command line is one that needs to be handled specially.
*/
static void check_command_line( int argc, char *argv[] )
{
static const char usage[] =
"Usage: wine PROGRAM [ARGUMENTS...] Run the specified program\n"
" wine --help Display this help and exit\n"
" wine --version Output version information and exit";
if (argc <= 1)
{
fprintf( stderr, "%s\n", usage );
exit(1);
}
if (!strcmp( argv[1], "--help" ))
{
printf( "%s\n", usage );
exit(0);
}
if (!strcmp( argv[1], "--version" ))
{
printf( "%s\n", wine_get_build_id() );
exit(0);
}
}
#if defined(__linux__) && defined(__i386__)
/* separate thread to check for NPTL and TLS features */
static void *needs_pthread( void *arg )
{
pid_t tid = gettid();
/* check for NPTL */
if (tid != -1 && tid != getpid()) return (void *)1;
/* check for TLS glibc */
if (wine_get_gs() != 0) return (void *)1;
/* check for exported epoll_create to detect new glibc versions without TLS */
if (wine_dlsym( RTLD_DEFAULT, "epoll_create", NULL, 0 ))
fprintf( stderr,
"wine: glibc >= 2.3 without NPTL or TLS is not a supported combination.\n"
" Please upgrade to a glibc with NPTL support.\n" );
else
fprintf( stderr,
"wine: Your C library is too old. You need at least glibc 2.3 with NPTL support.\n" );
return 0;
}
/* check if we support the glibc threading model */
static void check_threading(void)
{
pthread_t id;
void *ret;
pthread_create( &id, NULL, needs_pthread, NULL );
pthread_join( id, &ret );
if (!ret) exit(1);
}
static void check_vmsplit( void *stack )
{
if (stack < (void *)0x80000000)
{
/* if the stack is below 0x80000000, assume we can safely try a munmap there */
if (munmap( (void *)0x80000000, 1 ) == -1 && errno == EINVAL)
fprintf( stderr,
"Warning: memory above 0x80000000 doesn't seem to be accessible.\n"
"Wine requires a 3G/1G user/kernel memory split to work properly.\n" );
}
}
static void set_max_limit( int limit )
{
struct rlimit rlimit;
if (!getrlimit( limit, &rlimit ))
{
rlimit.rlim_cur = rlimit.rlim_max;
setrlimit( limit, &rlimit );
}
}
static int pre_exec(void)
{
int temp;
check_threading();
check_vmsplit( &temp );
set_max_limit( RLIMIT_AS );
return 1;
}
#elif defined(__FreeBSD__) && defined(__i386__)
static int pre_exec(void)
{
struct rlimit rl;
rl.rlim_cur = 0x02000000;
rl.rlim_max = 0x02000000;
setrlimit( RLIMIT_DATA, &rl );
return 1;
}
#else
static int pre_exec(void)
{
return 0; /* no exec needed */
}
#endif
/**********************************************************************
* main
*/
int main( int argc, char *argv[] )
{
char error[1024];
int i;
if (!getenv( "WINELOADERNOEXEC" )) /* first time around */
{
static char noexec[] = "WINELOADERNOEXEC=1";
putenv( noexec );
check_command_line( argc, argv );
if (pre_exec())
{
wine_init_argv0_path( argv[0] );
wine_exec_wine_binary( NULL, argv, getenv( "WINELOADER" ));
fprintf( stderr, "wine: could not exec the wine loader\n" );
exit(1);
}
}
if (wine_main_preload_info)
{
for (i = 0; wine_main_preload_info[i].size; i++)
reserve_area( wine_main_preload_info[i].addr, wine_main_preload_info[i].size );
}
wine_init( argc, argv, error, sizeof(error) );
fprintf( stderr, "wine: failed to initialize: %s\n", error );
exit(1);
}
|