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"
29 #include "wine/library.h"
32 static void *xmalloc( size_t size )
37 if (!(res = malloc( size )))
39 fprintf( stderr, "wine: virtual memory exhausted\n" );
45 /* separate thread to check for NPTL and TLS features */
46 static void *needs_pthread( void *arg )
50 if (tid != -1 && tid != getpid()) return (void *)1;
51 /* check for TLS glibc */
52 return (void *)(wine_get_gs() != 0);
55 /* return the name of the Wine threading variant to use */
56 static const char *get_threading(void)
61 pthread_create( &id, NULL, needs_pthread, NULL );
62 pthread_join( id, &ret );
63 return ret ? "wine-pthread" : "wine-kthread";
67 /**********************************************************************
70 int main( int argc, char *argv[] )
72 const char *loader = getenv( "WINELOADER" );
73 const char *threads = get_threading();
78 char *new_name, *new_loader;
80 if ((path = strrchr( loader, '/' ))) path++;
83 new_name = xmalloc( (path - loader) + strlen(threads) + 1 );
84 memcpy( new_name, loader, path - loader );
85 strcpy( new_name + (path - loader), threads );
87 /* update WINELOADER with the new name */
88 new_loader = xmalloc( sizeof("WINELOADER=") + strlen(new_name) );
89 strcpy( new_loader, "WINELOADER=" );
90 strcat( new_loader, new_name );
93 execv( argv[0], argv );
97 wine_init_argv0_path( argv[0] );
98 wine_exec_wine_binary( threads, argv, NULL );
100 fprintf( stderr, "wine: could not exec %s\n", argv[0] );