if1632/builtin.c

   1 /*
   2  * Built-in modules
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include "windows.h"
  11 #include "builtin32.h"
  12 #include "gdi.h"
  13 #include "global.h"
  14 #include "heap.h"
  15 #include "module.h"
  16 #include "miscemu.h"
  17 #include "neexe.h"
  18 #include "stackframe.h"
  19 #include "user.h"
  20 #include "process.h"
  21 #include "snoop.h"
  22 #include "task.h"
  23 #include "debug.h"
  24
  25 /* Built-in modules descriptors */
  26 /* Don't change these structures! (see tools/build.c) */
  27
  28 typedef struct
  29 {
  30     const char *name;              /* DLL name */
  31     void       *module_start;      /* 32-bit address of the module data */
  32     int         module_size;       /* Size of the module data */
  33     const BYTE *code_start;        /* 32-bit address of DLL code */
  34     const BYTE *data_start;        /* 32-bit address of DLL data */
  35 } WIN16_DESCRIPTOR;
  36
  37 typedef struct
  38 {
  39     const WIN16_DESCRIPTOR *descr;     /* DLL descriptor */
  40     int                     flags;     /* flags (see below) */
  41 } BUILTIN16_DLL;
  42
  43 /* DLL flags */
  44 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  45 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  46
  47 /* 16-bit DLLs */
  48
  49 extern const WIN16_DESCRIPTOR AVIFILE_Descriptor;
  50 extern const WIN16_DESCRIPTOR COMMDLG_Descriptor;
  51 extern const WIN16_DESCRIPTOR COMPOBJ_Descriptor;
  52 extern const WIN16_DESCRIPTOR DDEML_Descriptor;
  53 extern const WIN16_DESCRIPTOR DISPLAY_Descriptor;
  54 extern const WIN16_DESCRIPTOR GDI_Descriptor;
  55 extern const WIN16_DESCRIPTOR KERNEL_Descriptor;
  56 extern const WIN16_DESCRIPTOR KEYBOARD_Descriptor;
  57 extern const WIN16_DESCRIPTOR LZEXPAND_Descriptor;
  58 extern const WIN16_DESCRIPTOR MMSYSTEM_Descriptor;
  59 extern const WIN16_DESCRIPTOR MOUSE_Descriptor;
  60 extern const WIN16_DESCRIPTOR MSVIDEO_Descriptor;
  61 extern const WIN16_DESCRIPTOR OLE2CONV_Descriptor;
  62 extern const WIN16_DESCRIPTOR OLE2DISP_Descriptor;
  63 extern const WIN16_DESCRIPTOR OLE2NLS_Descriptor;
  64 extern const WIN16_DESCRIPTOR OLE2PROX_Descriptor;
  65 extern const WIN16_DESCRIPTOR OLE2THK_Descriptor;
  66 extern const WIN16_DESCRIPTOR OLE2_Descriptor;
  67 extern const WIN16_DESCRIPTOR OLECLI_Descriptor;
  68 extern const WIN16_DESCRIPTOR OLESVR_Descriptor;
  69 extern const WIN16_DESCRIPTOR RASAPI16_Descriptor;
  70 extern const WIN16_DESCRIPTOR SHELL_Descriptor;
  71 extern const WIN16_DESCRIPTOR SOUND_Descriptor;
  72 extern const WIN16_DESCRIPTOR STORAGE_Descriptor;
  73 extern const WIN16_DESCRIPTOR STRESS_Descriptor;
  74 extern const WIN16_DESCRIPTOR SYSTEM_Descriptor;
  75 extern const WIN16_DESCRIPTOR TOOLHELP_Descriptor;
  76 extern const WIN16_DESCRIPTOR TYPELIB_Descriptor;
  77 extern const WIN16_DESCRIPTOR USER_Descriptor;
  78 extern const WIN16_DESCRIPTOR VER_Descriptor;
  79 extern const WIN16_DESCRIPTOR W32SYS_Descriptor;
  80 extern const WIN16_DESCRIPTOR WIN32S16_Descriptor;
  81 extern const WIN16_DESCRIPTOR WIN87EM_Descriptor;
  82 extern const WIN16_DESCRIPTOR WINASPI_Descriptor;
  83 extern const WIN16_DESCRIPTOR WINDEBUG_Descriptor;
  84 extern const WIN16_DESCRIPTOR WINEPS_Descriptor;
  85 extern const WIN16_DESCRIPTOR WING_Descriptor;
  86 extern const WIN16_DESCRIPTOR WINSOCK_Descriptor;
  87 extern const WIN16_DESCRIPTOR WPROCS_Descriptor;
  88
  89 /* Table of all built-in DLLs */
  90
  91 static BUILTIN16_DLL BuiltinDLLs[] =
  92 {
  93     { &KERNEL_Descriptor,   DLL_FLAG_ALWAYS_USED },
  94     { &USER_Descriptor,     DLL_FLAG_ALWAYS_USED },
  95     { &GDI_Descriptor,      DLL_FLAG_ALWAYS_USED },
  96     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
  97     { &DISPLAY_Descriptor,  DLL_FLAG_ALWAYS_USED },
  98     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
  99     { &WINDEBUG_Descriptor, DLL_FLAG_NOT_USED },
 100     { &AVIFILE_Descriptor,  DLL_FLAG_NOT_USED },
 101     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 102     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 103     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 104     { &KEYBOARD_Descriptor, 0 },
 105     { &LZEXPAND_Descriptor, 0 },
 106     { &MMSYSTEM_Descriptor, 0 },
 107     { &MOUSE_Descriptor,    0 },
 108     { &MSVIDEO_Descriptor,  0 },
 109     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 110     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 111     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 112     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 113     { &OLE2THK_Descriptor,  DLL_FLAG_NOT_USED },
 114     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 115     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 116     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 117     { &RASAPI16_Descriptor, 0 },
 118     { &SHELL_Descriptor,    0 },
 119     { &SOUND_Descriptor,    0 },
 120     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 121     { &STRESS_Descriptor,   0 },
 122     { &TOOLHELP_Descriptor, 0 },
 123     { &TYPELIB_Descriptor,  DLL_FLAG_NOT_USED },
 124     { &VER_Descriptor,      0 },
 125     { &W32SYS_Descriptor,   DLL_FLAG_NOT_USED },
 126     { &WIN32S16_Descriptor, DLL_FLAG_NOT_USED },
 127     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 128     { &WINASPI_Descriptor,  0 },
 129     { &WINEPS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 130     { &WING_Descriptor,     0 },
 131     { &WINSOCK_Descriptor,  0 },
 132     /* Last entry */
 133     { NULL, 0 }
 134 };
 135
 136   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 137 #define FIRST_INTERRUPT_ORDINAL 100
 138
 139
 140 /***********************************************************************
 141  *           BUILTIN_DoLoadModule16
 142  *
 143  * Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
 144  * and BUILTIN_Init.
 145  */
 146 static HMODULE16 BUILTIN_DoLoadModule16( const WIN16_DESCRIPTOR *descr )
 147 {
 148     NE_MODULE *pModule;
 149     int minsize;
 150     SEGTABLEENTRY *pSegTable;
 151
 152     HMODULE16 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
 153                                             descr->module_size, 0,
 154                                             FALSE, FALSE, FALSE, NULL );
 155     if (!hModule) return 0;
 156     FarSetOwner( hModule, hModule );
 157
 158     TRACE(module, "Built-in %s: hmodule=%04x\n",
 159                     descr->name, hModule );
 160     pModule = (NE_MODULE *)GlobalLock16( hModule );
 161     pModule->self = hModule;
 162
 163     /* Allocate the code segment */
 164
 165     pSegTable = NE_SEG_TABLE( pModule );
 166     pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
 167                                               pSegTable->minsize, hModule,
 168                                               TRUE, TRUE, FALSE, NULL );
 169     if (!pSegTable->hSeg) return 0;
 170     pSegTable++;
 171
 172     /* Allocate the data segment */
 173
 174     minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 175     minsize += pModule->heap_size;
 176     if (minsize > 0x10000) minsize = 0x10000;
 177     pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
 178                                         hModule, FALSE, FALSE, FALSE );
 179     if (!pSegTable->hSeg) return 0;
 180     if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
 181                                     descr->data_start, pSegTable->minsize);
 182     if (pModule->heap_size)
 183         LocalInit( GlobalHandleToSel(pSegTable->hSeg),
 184                 pSegTable->minsize, minsize );
 185
 186     NE_RegisterModule( pModule );
 187     return hModule;
 188 }
 189
 190
 191 /***********************************************************************
 192  *           BUILTIN_Init
 193  *
 194  * Load all built-in modules marked as 'always used'.
 195  */
 196 BOOL32 BUILTIN_Init(void)
 197 {
 198     BUILTIN16_DLL *dll;
 199     NE_MODULE *pModule;
 200     WORD vector;
 201     HMODULE16 hModule;
 202     WORD cs, ds;
 203
 204     fnBUILTIN_LoadModule = BUILTIN_LoadModule;
 205
 206     for (dll = BuiltinDLLs; dll->descr; dll++)
 207     {
 208         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 209             if (!BUILTIN_DoLoadModule16( dll->descr )) return FALSE;
 210     }
 211
 212     /* Set the USER and GDI heap selectors */
 213
 214     pModule      = NE_GetPtr( GetModuleHandle16( "USER" ));
 215     USER_HeapSel = pModule ? GlobalHandleToSel((NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->hSeg) : 0;
 216     pModule      = NE_GetPtr( GetModuleHandle16( "GDI" ));
 217     GDI_HeapSel  = pModule ? GlobalHandleToSel((NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->hSeg) : 0;
 218
 219     /* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
 220
 221     hModule = GetModuleHandle16( "KERNEL" );
 222     NE_SetEntryPoint( hModule, 178, GetWinFlags() );
 223
 224     /* Initialize KERNEL.454/455 (__FLATCS/__FLATDS) */
 225
 226     GET_CS(cs); GET_DS(ds);
 227     NE_SetEntryPoint( hModule, 454, cs );
 228     NE_SetEntryPoint( hModule, 455, ds );
 229
 230     /* Initialize KERNEL.THHOOK */
 231
 232     TASK_InstallTHHook((THHOOK *)PTR_SEG_TO_LIN(
 233                                   (SEGPTR)NE_GetEntryPoint( hModule, 332 )));
 234
 235     /* Initialize the real-mode selector entry points */
 236
 237 #define SET_ENTRY_POINT( num, addr ) \
 238     NE_SetEntryPoint( hModule, (num), GLOBAL_CreateBlock( GMEM_FIXED, \
 239                       DOSMEM_MapDosToLinear(addr), 0x10000, hModule, \
 240                       FALSE, FALSE, FALSE, NULL ))
 241
 242     SET_ENTRY_POINT( 183, 0x00000 );  /* KERNEL.183: __0000H */
 243     SET_ENTRY_POINT( 174, 0xa0000 );  /* KERNEL.174: __A000H */
 244     SET_ENTRY_POINT( 181, 0xb0000 );  /* KERNEL.181: __B000H */
 245     SET_ENTRY_POINT( 182, 0xb8000 );  /* KERNEL.182: __B800H */
 246     SET_ENTRY_POINT( 195, 0xc0000 );  /* KERNEL.195: __C000H */
 247     SET_ENTRY_POINT( 179, 0xd0000 );  /* KERNEL.179: __D000H */
 248     SET_ENTRY_POINT( 190, 0xe0000 );  /* KERNEL.190: __E000H */
 249     SET_ENTRY_POINT( 173, 0xf0000 );  /* KERNEL.173: __ROMBIOS */
 250     SET_ENTRY_POINT( 194, 0xf0000 );  /* KERNEL.194: __F000H */
 251     NE_SetEntryPoint( hModule, 193, DOSMEM_BiosSeg ); /* KERNEL.193: __0040H */
 252 #undef SET_ENTRY_POINT
 253
 254     /* Set interrupt vectors from entry points in WPROCS.DLL */
 255
 256     hModule = GetModuleHandle16( "WPROCS" );
 257     for (vector = 0; vector < 256; vector++)
 258     {
 259         FARPROC16 proc = NE_GetEntryPoint( hModule,
 260                                            FIRST_INTERRUPT_ORDINAL + vector );
 261         assert(proc);
 262         INT_SetPMHandler( vector, proc );
 263     }
 264
 265     SNOOP16_Init();
 266
 267     return TRUE;
 268 }
 269
 270
 271 /***********************************************************************
 272  *           BUILTIN_LoadModule
 273  *
 274  * Load a built-in module. If the 'force' parameter is FALSE, we only
 275  * load the module if it has not been disabled via the -dll option.
 276  */
 277 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL32 force )
 278 {
 279     BUILTIN16_DLL *table;
 280     char dllname[16], *p;
 281
 282     /* Fix the name in case we have a full path and extension */
 283
 284     if ((p = strrchr( name, '\\' ))) name = p + 1;
 285     lstrcpyn32A( dllname, name, sizeof(dllname) );
 286     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 287
 288     for (table = BuiltinDLLs; table->descr; table++)
 289         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 290     if (!table->descr) return 0;
 291     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return 0;
 292
 293     return BUILTIN_DoLoadModule16( table->descr );
 294 }
 295
 296
 297 /***********************************************************************
 298  *           BUILTIN_GetEntryPoint16
 299  *
 300  * Return the ordinal and name corresponding to a CS:IP address.
 301  * This is used only by relay debugging.
 302  */
 303 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 304 {
 305     static char buffer[80];
 306     WORD ordinal, i, max_offset;
 307     register BYTE *p;
 308     NE_MODULE *pModule;
 309
 310     if (!(pModule = NE_GetPtr( FarGetOwner( GlobalHandle16(cs) ))))
 311         return NULL;
 312
 313     /* Search for the ordinal */
 314
 315     p = (BYTE *)pModule + pModule->entry_table;
 316     max_offset = 0;
 317     ordinal = 1;
 318     *pOrd = 0;
 319     while (*p)
 320     {
 321         switch(p[1])
 322         {
 323         case 0:    /* unused */
 324             ordinal += *p;
 325             p += 2;
 326             break;
 327         case 1:    /* code segment */
 328             i = *p;
 329             p += 2;
 330             while (i-- > 0)
 331             {
 332                 p++;
 333                 if ((*(WORD *)p <= ip) && (*(WORD *)p >= max_offset))
 334                 {
 335                     max_offset = *(WORD *)p;
 336                     *pOrd = ordinal;
 337                 }
 338                 p += 2;
 339                 ordinal++;
 340             }
 341             break;
 342         case 0xff: /* moveable (should not happen in built-in modules) */
 343             TRACE( relay, "Built-in module has moveable entry\n" );
 344             ordinal += *p;
 345             p += 2 + *p * 6;
 346             break;
 347         default:   /* other segment */
 348             ordinal += *p;
 349             p += 2 + *p * 3;
 350             break;
 351         }
 352     }
 353
 354     /* Search for the name in the resident names table */
 355     /* (built-in modules have no non-resident table)   */
 356
 357     p = (BYTE *)pModule + pModule->name_table;
 358     while (*p)
 359     {
 360         p += *p + 1 + sizeof(WORD);
 361         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 362     }
 363
 364     sprintf( buffer, "%.*s.%d: %.*s",
 365              *((BYTE *)pModule + pModule->name_table),
 366              (char *)pModule + pModule->name_table + 1,
 367              *pOrd, *p, (char *)(p + 1) );
 368     return buffer;
 369 }
 370
 371
 372 /**********************************************************************
 373  *          BUILTIN_DefaultIntHandler
 374  *
 375  * Default interrupt handler.
 376  */
 377 void BUILTIN_DefaultIntHandler( CONTEXT *context )
 378 {
 379     WORD ordinal;
 380     STACK16FRAME *frame = CURRENT_STACK16;
 381     BUILTIN_GetEntryPoint16( frame->entry_cs, frame->entry_ip, &ordinal );
 382     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 383 }
 384
 385
 386 /***********************************************************************
 387  *           BUILTIN_ParseDLLOptions
 388  *
 389  * Set runtime DLL usage flags
 390  */
 391 BOOL32 BUILTIN_ParseDLLOptions( const char *str )
 392 {
 393     BUILTIN16_DLL *dll;
 394     const char *p;
 395
 396     while (*str)
 397     {
 398         while (*str && isspace(*str)) str++;
 399         if (!*str) return TRUE;
 400         if ((*str != '+') && (*str != '-')) return FALSE;
 401         str++;
 402         if (!(p = strchr( str, ',' ))) p = str + strlen(str);
 403         while ((p > str) && isspace(p[-1])) p--;
 404         if (p == str) return FALSE;
 405         for (dll = BuiltinDLLs; dll->descr; dll++)
 406         {
 407             if (!lstrncmpi32A( str, dll->descr->name, (int)(p - str) ))
 408             {
 409                 if (dll->descr->name[(int)(p-str)])  /* only partial match */
 410                         continue;
 411                 if (str[-1] == '-')
 412                 {
 413                     if (dll->flags & DLL_FLAG_ALWAYS_USED) return FALSE;
 414                     dll->flags |= DLL_FLAG_NOT_USED;
 415                 }
 416                 else dll->flags &= ~DLL_FLAG_NOT_USED;
 417                 break;
 418             }
 419         }
 420         if (!dll->descr)
 421             if (!BUILTIN32_EnableDLL( str, (int)(p - str), (str[-1] == '+') ))
 422                 return FALSE;
 423         str = p;
 424         while (*str && (isspace(*str) || (*str == ','))) str++;
 425     }
 426     return TRUE;
 427 }
 428
 429
 430 /***********************************************************************
 431  *           BUILTIN_PrintDLLs
 432  *
 433  * Print the list of built-in DLLs that can be disabled.
 434  */
 435 void BUILTIN_PrintDLLs(void)
 436 {
 437     int i;
 438     BUILTIN16_DLL *dll;
 439
 440     MSG("Example: -dll -ole2    Do not use emulated OLE2.DLL\n");
 441     MSG("Available Win16 DLLs:\n");
 442     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 443     {
 444         if (!(dll->flags & DLL_FLAG_ALWAYS_USED))
 445             MSG("%-9s%c", dll->descr->name,
 446                      ((++i) % 8) ? ' ' : '\n' );
 447     }
 448     MSG("\n");
 449     BUILTIN32_PrintDLLs();
 450 }