2 * glibc threading support
4 * Copyright 2003 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
33 #include "wine/library.h"
36 static void *xmalloc( size_t size
)
41 if (!(res
= malloc( size
)))
43 fprintf( stderr
, "wine: virtual memory exhausted\n" );
49 /* separate thread to check for NPTL and TLS features */
50 static void *needs_pthread( void *arg
)
54 if (tid
!= -1 && tid
!= getpid()) return (void *)1;
55 /* check for TLS glibc */
56 return (void *)(wine_get_gs() != 0);
59 /* return the name of the Wine threading variant to use */
60 static const char *get_threading(void)
65 pthread_create( &id
, NULL
, needs_pthread
, NULL
);
66 pthread_join( id
, &ret
);
67 return ret
? "wine-pthread" : "wine-kthread";
71 /**********************************************************************
74 int main( int argc
, char *argv
[] )
76 const char *loader
= getenv( "WINELOADER" );
77 const char *threads
= get_threading();
82 char *new_name
, *new_loader
;
84 if ((path
= strrchr( loader
, '/' ))) path
++;
87 new_name
= xmalloc( (path
- loader
) + strlen(threads
) + 1 );
88 memcpy( new_name
, loader
, path
- loader
);
89 strcpy( new_name
+ (path
- loader
), threads
);
91 /* update WINELOADER with the new name */
92 new_loader
= xmalloc( sizeof("WINELOADER=") + strlen(new_name
) );
93 strcpy( new_loader
, "WINELOADER=" );
94 strcat( new_loader
, new_name
);
96 wine_exec_wine_binary( new_name
, argv
, NULL
, TRUE
);
100 wine_init_argv0_path( argv
[0] );
101 wine_exec_wine_binary( threads
, argv
, NULL
, TRUE
);
103 fprintf( stderr
, "wine: could not exec %s\n", argv
[0] );