loader/main.c

   1 /*
   2  * Emulator initialisation code
   3  *
   4  * Copyright 2000 Alexandre Julliard
   5  *
   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.
  10  *
  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.
  15  *
  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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #ifdef HAVE_SYS_MMAN_H
  27 #include <sys/mman.h>
  28 #endif
  29
  30 #include "wine/library.h"
  31 #include "main.h"
  32
  33 #ifdef __APPLE__
  34
  35 asm(".zerofill WINE_DOS, WINE_DOS, ___wine_dos, 0x60000000");
  36 asm(".zerofill WINE_SHARED_HEAP, WINE_SHARED_HEAP, ___wine_shared_heap, 0x03000000");
  37 extern char __wine_dos[0x60000000], __wine_shared_heap[0x03000000];
  38
  39 static const struct wine_preload_info wine_main_preload_info[] =
  40 {
  41     { __wine_dos,         sizeof(__wine_dos) },          /* DOS area + PE exe */
  42     { __wine_shared_heap, sizeof(__wine_shared_heap) },  /* shared user data + shared heap */
  43     { 0, 0 }  /* end of list */
  44 };
  45
  46 static inline void reserve_area( void *addr, size_t size )
  47 {
  48     wine_anon_mmap( addr, size, PROT_NONE, MAP_FIXED | MAP_NORESERVE );
  49     wine_mmap_add_reserved_area( addr, size );
  50 }
  51
  52 #else  /* __APPLE__ */
  53
  54 /* the preloader will set this variable */
  55 const struct wine_preload_info *wine_main_preload_info = NULL;
  56
  57 static inline void reserve_area( void *addr, size_t size )
  58 {
  59     wine_mmap_add_reserved_area( addr, size );
  60 }
  61
  62 #endif  /* __APPLE__ */
  63
  64 /***********************************************************************
  65  *           check_command_line
  66  *
  67  * Check if command line is one that needs to be handled specially.
  68  */
  69 static void check_command_line( int argc, char *argv[] )
  70 {
  71     static const char usage[] =
  72         "Usage: wine PROGRAM [ARGUMENTS...]   Run the specified program\n"
  73         "       wine --help                   Display this help and exit\n"
  74         "       wine --version                Output version information and exit";
  75
  76     if (argc <= 1)
  77     {
  78         fprintf( stderr, "%s\n", usage );
  79         exit(1);
  80     }
  81     if (!strcmp( argv[1], "--help" ))
  82     {
  83         printf( "%s\n", usage );
  84         exit(0);
  85     }
  86     if (!strcmp( argv[1], "--version" ))
  87     {
  88         printf( "%s\n", wine_get_build_id() );
  89         exit(0);
  90     }
  91 }
  92
  93
  94 /**********************************************************************
  95  *           main
  96  */
  97 int main( int argc, char *argv[] )
  98 {
  99     char error[1024];
 100     int i;
 101
 102     check_command_line( argc, argv );
 103     if (wine_main_preload_info)
 104     {
 105         for (i = 0; wine_main_preload_info[i].size; i++)
 106             reserve_area( wine_main_preload_info[i].addr, wine_main_preload_info[i].size );
 107     }
 108
 109     init_pthread_functions();
 110     wine_init( argc, argv, error, sizeof(error) );
 111     fprintf( stderr, "wine: failed to initialize: %s\n", error );
 112     exit(1);
 113 }