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