Enumerate the substorage transforms for any patches that are passed on
[wine/gsoc_dplay.git] / loader / glibc.c
blob0cdf4089e7f2d6021353ca02a017056026938b24
1 /*
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
21 #include "config.h"
22 #include "wine/port.h"
24 #include <stdio.h>
25 #include <stdlib.h>
26 #ifdef HAVE_UNISTD_H
27 # include <unistd.h>
28 #endif
29 #ifdef HAVE_PTHREAD_H
30 # include <pthread.h>
31 #endif
33 #include "wine/library.h"
35 /* malloc wrapper */
36 static void *xmalloc( size_t size )
38 void *res;
40 if (!size) size = 1;
41 if (!(res = malloc( size )))
43 fprintf( stderr, "wine: virtual memory exhausted\n" );
44 exit(1);
46 return res;
49 /* separate thread to check for NPTL and TLS features */
50 static void *needs_pthread( void *arg )
52 pid_t tid = gettid();
53 /* check for NPTL */
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)
62 pthread_t id;
63 void *ret;
65 pthread_create( &id, NULL, needs_pthread, NULL );
66 pthread_join( id, &ret );
67 return ret ? "wine-pthread" : "wine-kthread";
71 /**********************************************************************
72 * main
74 int main( int argc, char *argv[] )
76 const char *loader = getenv( "WINELOADER" );
77 const char *threads = get_threading();
79 if (loader)
81 const char *path;
82 char *new_name, *new_loader;
84 if ((path = strrchr( loader, '/' ))) path++;
85 else path = loader;
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 );
95 putenv( new_loader );
96 wine_exec_wine_binary( new_name, argv, NULL, TRUE );
98 else
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] );
104 exit(1);