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