dlls/kernel32/kernel16.c

   1 /*
   2  * 16-bit kernel initialization 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 <stdarg.h>
  22 #include <stdio.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winternl.h"
  27 #include "wownt32.h"
  28
  29 #include "toolhelp.h"
  30 #include "kernel_private.h"
  31 #include "kernel16_private.h"
  32 #include "wine/server.h"
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(module);
  36
  37 /**************************************************************************
  38  *              DllEntryPoint   (KERNEL.669)
  39  */
  40 BOOL WINAPI KERNEL_DllEntryPoint( DWORD reasion, HINSTANCE16 inst, WORD ds,
  41                                   WORD heap, DWORD reserved1, WORD reserved2 )
  42 {
  43     static int done;
  44
  45     /* the entry point can be called multiple times */
  46     if (done) return TRUE;
  47     done = 1;
  48
  49     /* Initialize 16-bit thunking entry points */
  50     if (!WOWTHUNK_Init()) return FALSE;
  51
  52     /* Initialize DOS memory */
  53     if (!DOSMEM_Init()) return FALSE;
  54
  55     /* Initialize special KERNEL entry points */
  56
  57     NE_SetEntryPoint( inst, 178, GetWinFlags16() );
  58
  59     NE_SetEntryPoint( inst, 454, wine_get_cs() );
  60     NE_SetEntryPoint( inst, 455, wine_get_ds() );
  61
  62     NE_SetEntryPoint( inst, 183, DOSMEM_0000H );       /* KERNEL.183: __0000H */
  63     NE_SetEntryPoint( inst, 173, DOSMEM_BiosSysSeg );  /* KERNEL.173: __ROMBIOS */
  64     NE_SetEntryPoint( inst, 193, DOSMEM_BiosDataSeg ); /* KERNEL.193: __0040H */
  65     NE_SetEntryPoint( inst, 194, DOSMEM_BiosSysSeg );  /* KERNEL.194: __F000H */
  66
  67     /* Initialize KERNEL.THHOOK */
  68     TASK_InstallTHHook(MapSL((SEGPTR)GetProcAddress16( inst, (LPCSTR)332 )));
  69
  70     /* Initialize the real-mode selector entry points */
  71 #define SET_ENTRY_POINT( num, addr ) \
  72     NE_SetEntryPoint( inst, (num), GLOBAL_CreateBlock( GMEM_FIXED, \
  73                       DOSMEM_MapDosToLinear(addr), 0x10000, inst, \
  74                       WINE_LDT_FLAGS_DATA ))
  75
  76     SET_ENTRY_POINT( 174, 0xa0000 );  /* KERNEL.174: __A000H */
  77     SET_ENTRY_POINT( 181, 0xb0000 );  /* KERNEL.181: __B000H */
  78     SET_ENTRY_POINT( 182, 0xb8000 );  /* KERNEL.182: __B800H */
  79     SET_ENTRY_POINT( 195, 0xc0000 );  /* KERNEL.195: __C000H */
  80     SET_ENTRY_POINT( 179, 0xd0000 );  /* KERNEL.179: __D000H */
  81     SET_ENTRY_POINT( 190, 0xe0000 );  /* KERNEL.190: __E000H */
  82 #undef SET_ENTRY_POINT
  83
  84     /* Force loading of some dlls */
  85     LoadLibrary16( "system.drv" );
  86
  87     return TRUE;
  88 }
  89
  90 /***********************************************************************
  91  *              EnableDos (KERNEL.41)
  92  *              DisableDos (KERNEL.42)
  93  *              GetLastDiskChange (KERNEL.98)
  94  *              ValidateCodeSegments (KERNEL.100)
  95  *              KbdRst (KERNEL.123)
  96  *              EnableKernel (KERNEL.124)
  97  *              DisableKernel (KERNEL.125)
  98  *              ValidateFreeSpaces (KERNEL.200)
  99  *              K237 (KERNEL.237)
 100  *              BUNNY_351 (KERNEL.351)
 101  *              PIGLET_361 (KERNEL.361)
 102  *
 103  * Entry point for kernel functions that do nothing.
 104  */
 105 LONG WINAPI KERNEL_nop(void)
 106 {
 107     return 0;
 108 }
 109
 110
 111 /* thunk for 16-bit CreateThread */
 112 struct thread_args
 113 {
 114     FARPROC16 proc;
 115     DWORD     param;
 116 };
 117
 118 static DWORD CALLBACK start_thread16( LPVOID threadArgs )
 119 {
 120     struct thread_args args = *(struct thread_args *)threadArgs;
 121     HeapFree( GetProcessHeap(), 0, threadArgs );
 122     return K32WOWCallback16( (DWORD)args.proc, args.param );
 123 }
 124
 125 /***********************************************************************
 126  *           CreateThread16   (KERNEL.441)
 127  */
 128 HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
 129                               FARPROC16 start, SEGPTR param,
 130                               DWORD flags, LPDWORD id )
 131 {
 132     struct thread_args *args = HeapAlloc( GetProcessHeap(), 0, sizeof(*args) );
 133     if (!args) return INVALID_HANDLE_VALUE;
 134     args->proc = start;
 135     args->param = param;
 136     return CreateThread( sa, stack, start_thread16, args, flags, id );
 137 }
 138
 139
 140 /***********************************************************************
 141  *           wait_input_idle
 142  *
 143  * user32.WaitForInputIdle releases the win16 lock, so here is a replacement.
 144  */
 145 static DWORD wait_input_idle( HANDLE process, DWORD timeout )
 146 {
 147     DWORD ret;
 148     HANDLE handles[2];
 149
 150     handles[0] = process;
 151     SERVER_START_REQ( get_process_idle_event )
 152     {
 153         req->handle = wine_server_obj_handle(process);
 154         if (!(ret = wine_server_call_err( req ))) handles[1] = wine_server_ptr_handle( reply->event );
 155     }
 156     SERVER_END_REQ;
 157     if (ret) return WAIT_FAILED;  /* error */
 158     if (!handles[1]) return 0;  /* no event to wait on */
 159
 160     return WaitForMultipleObjects( 2, handles, FALSE, timeout );
 161 }
 162
 163
 164 /**************************************************************************
 165  *           WINOLDAP entry point
 166  */
 167 void WINAPI WINOLDAP_EntryPoint( CONTEXT86 *context )
 168 {
 169     PDB16 *psp;
 170     INT len;
 171     LPSTR cmdline;
 172     PROCESS_INFORMATION info;
 173     STARTUPINFOA startup;
 174     DWORD count, exit_code = 1;
 175
 176     InitTask16( context );
 177
 178     TRACE( "(ds=%x es=%x fs=%x gs=%x, bx=%04x cx=%04x di=%04x si=%x)\n",
 179             context->SegDs, context->SegEs, context->SegFs, context->SegGs,
 180             context->Ebx, context->Ecx, context->Edi, context->Esi );
 181
 182     psp = GlobalLock16( context->SegEs );
 183     len = psp->cmdLine[0];
 184     cmdline = HeapAlloc( GetProcessHeap(), 0, len + 1 );
 185     memcpy( cmdline, psp->cmdLine + 1, len );
 186     cmdline[len] = 0;
 187
 188     memset( &startup, 0, sizeof(startup) );
 189     startup.cb = sizeof(startup);
 190
 191     if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE,
 192                         0, NULL, NULL, &startup, &info ))
 193     {
 194         /* Give 10 seconds to the app to come up */
 195         if (wait_input_idle( info.hProcess, 10000 ) == WAIT_FAILED)
 196             WARN("WaitForInputIdle failed: Error %d\n", GetLastError() );
 197         ReleaseThunkLock( &count );
 198
 199         WaitForSingleObject( info.hProcess, INFINITE );
 200         GetExitCodeProcess( info.hProcess, &exit_code );
 201         CloseHandle( info.hThread );
 202         CloseHandle( info.hProcess );
 203     }
 204     else
 205         ReleaseThunkLock( &count );
 206
 207     HeapFree( GetProcessHeap(), 0, cmdline );
 208     ExitThread( exit_code );
 209 }
 210
 211
 212 /**************************************************************************
 213  *           WINHELP entry point
 214  *
 215  * FIXME: should go into winhlp32.exe, but we don't support 16-bit modules in executables yet.
 216  */
 217 void WINAPI WINHELP_EntryPoint( CONTEXT86 *context )
 218 {
 219     static const WCHAR winhlp32W[] = {'\\','w','i','n','h','l','p','3','2','.','e','x','e',0};
 220     PDB16 *psp;
 221     INT len, total;
 222     WCHAR *cmdline, *p;
 223     PROCESS_INFORMATION info;
 224     STARTUPINFOW startup;
 225     DWORD count, exit_code = 1;
 226
 227     InitTask16( context );
 228
 229     TRACE( "(ds=%x es=%x fs=%x gs=%x, bx=%04x cx=%04x di=%04x si=%x)\n",
 230             context->SegDs, context->SegEs, context->SegFs, context->SegGs,
 231             context->Ebx, context->Ecx, context->Edi, context->Esi );
 232
 233     psp = GlobalLock16( context->SegEs );
 234     len = MultiByteToWideChar( CP_ACP, 0, (char *)psp->cmdLine + 1, psp->cmdLine[0], NULL, 0 );
 235     total = (GetSystemDirectoryW( NULL, 0 ) + len + 1) * sizeof(WCHAR) + sizeof(winhlp32W);
 236     cmdline = HeapAlloc( GetProcessHeap(), 0, total );
 237     GetSystemDirectoryW( cmdline, total );
 238     lstrcatW( cmdline, winhlp32W );
 239     p = cmdline + lstrlenW(cmdline);
 240     if (len)
 241     {
 242         *p++ = ' ';
 243         MultiByteToWideChar( CP_ACP, 0, (char *)psp->cmdLine + 1, psp->cmdLine[0], p, len );
 244         p[len] = 0;
 245     }
 246
 247     memset( &startup, 0, sizeof(startup) );
 248     startup.cb = sizeof(startup);
 249
 250     if (CreateProcessW( NULL, cmdline, NULL, NULL, FALSE, 0, NULL, NULL, &startup, &info ))
 251     {
 252         /* Give 10 seconds to the app to come up */
 253         if (wait_input_idle( info.hProcess, 10000 ) == WAIT_FAILED)
 254             WARN("WaitForInputIdle failed: Error %d\n", GetLastError() );
 255         ReleaseThunkLock( &count );
 256
 257         WaitForSingleObject( info.hProcess, INFINITE );
 258         GetExitCodeProcess( info.hProcess, &exit_code );
 259         CloseHandle( info.hThread );
 260         CloseHandle( info.hProcess );
 261     }
 262     else
 263         ReleaseThunkLock( &count );
 264
 265     HeapFree( GetProcessHeap(), 0, cmdline );
 266     ExitThread( exit_code );
 267 }
 268
 269 /***********************************************************************
 270  *           _DebugOutput                    (KERNEL.328)
 271  */
 272 void WINAPIV _DebugOutput( WORD flags, LPCSTR spec, VA_LIST16 valist )
 273 {
 274     char caller[101];
 275
 276     /* Decode caller address */
 277     if (!GetModuleName16( GetExePtr(CURRENT_STACK16->cs), caller, sizeof(caller) ))
 278         sprintf( caller, "%04X:%04X", CURRENT_STACK16->cs, CURRENT_STACK16->ip );
 279
 280     /* FIXME: cannot use wvsnprintf16 from kernel */
 281     /* wvsnprintf16( temp, sizeof(temp), spec, valist ); */
 282
 283     /* Output */
 284     FIXME("%s %04x %s\n", caller, flags, debugstr_a(spec) );
 285 }