loader/builtin.c

   1 /*
   2  * Built-in modules
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #ifndef WINELIB
   8
   9 #include <ctype.h>
  10 #include <string.h>
  11 #include "windows.h"
  12 #include "gdi.h"
  13 #include "global.h"
  14 #include "module.h"
  15 #include "neexe.h"
  16 #include "user.h"
  17 #include "stddebug.h"
  18 #include "debug.h"
  19
  20
  21 /* Built-in modules descriptors */
  22 /* Don't change these structures! (see tools/build.c) */
  23
  24 typedef struct
  25 {
  26     const BYTE *code_start;        /* 32-bit address of DLL code */
  27     const BYTE *data_start;        /* 32-bit address of DLL data */
  28 } WIN16_DESCRIPTOR;
  29
  30 typedef struct
  31 {
  32     int                 base;       /* Ordinal base */
  33     int                 size;       /* Number of functions */
  34     const void         *code_start; /* Start of DLL code */
  35     const void        **functions;  /* Pointer to functions table */
  36     const char * const *names;      /* Pointer to names table */
  37 } WIN32_DESCRIPTOR;
  38
  39 typedef struct
  40 {
  41     const char *name;              /* DLL name */
  42     void       *module_start;      /* 32-bit address of the module data */
  43     int         module_size;       /* Size of the module data */
  44     union
  45     {
  46         WIN16_DESCRIPTOR win16;    /* Descriptor for Win16 DLL */
  47         WIN32_DESCRIPTOR win32;    /* Descriptor for Win32 DLL */
  48     } u;
  49 } DLL_DESCRIPTOR;
  50
  51 typedef struct
  52 {
  53     const DLL_DESCRIPTOR *descr;   /* DLL descriptor */
  54     int                   flags;   /* flags (see below) */
  55 } BUILTIN_DLL;
  56
  57
  58 /* DLL flags */
  59 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  60 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  61 #define DLL_FLAG_WIN32       0x04  /* DLL is a Win32 DLL */
  62
  63 /* 16-bit DLLs */
  64
  65 extern const DLL_DESCRIPTOR KERNEL_Descriptor;
  66 extern const DLL_DESCRIPTOR USER_Descriptor;
  67 extern const DLL_DESCRIPTOR GDI_Descriptor;
  68 extern const DLL_DESCRIPTOR WIN87EM_Descriptor;
  69 extern const DLL_DESCRIPTOR MMSYSTEM_Descriptor;
  70 extern const DLL_DESCRIPTOR SHELL_Descriptor;
  71 extern const DLL_DESCRIPTOR SOUND_Descriptor;
  72 extern const DLL_DESCRIPTOR KEYBOARD_Descriptor;
  73 extern const DLL_DESCRIPTOR WINSOCK_Descriptor;
  74 extern const DLL_DESCRIPTOR STRESS_Descriptor;
  75 extern const DLL_DESCRIPTOR SYSTEM_Descriptor;
  76 extern const DLL_DESCRIPTOR TOOLHELP_Descriptor;
  77 extern const DLL_DESCRIPTOR MOUSE_Descriptor;
  78 extern const DLL_DESCRIPTOR COMMDLG_Descriptor;
  79 extern const DLL_DESCRIPTOR OLE2_Descriptor;
  80 extern const DLL_DESCRIPTOR OLE2CONV_Descriptor;
  81 extern const DLL_DESCRIPTOR OLE2DISP_Descriptor;
  82 extern const DLL_DESCRIPTOR OLE2NLS_Descriptor;
  83 extern const DLL_DESCRIPTOR OLE2PROX_Descriptor;
  84 extern const DLL_DESCRIPTOR OLECLI_Descriptor;
  85 extern const DLL_DESCRIPTOR OLESVR_Descriptor;
  86 extern const DLL_DESCRIPTOR COMPOBJ_Descriptor;
  87 extern const DLL_DESCRIPTOR STORAGE_Descriptor;
  88 extern const DLL_DESCRIPTOR WPROCS_Descriptor;
  89 extern const DLL_DESCRIPTOR DDEML_Descriptor;
  90 extern const DLL_DESCRIPTOR LZEXPAND_Descriptor;
  91 extern const DLL_DESCRIPTOR VER_Descriptor;
  92 extern const DLL_DESCRIPTOR W32SYS_Descriptor;
  93 extern const DLL_DESCRIPTOR WING_Descriptor;
  94
  95 /* 32-bit DLLs */
  96
  97 extern const DLL_DESCRIPTOR ADVAPI32_Descriptor;
  98 extern const DLL_DESCRIPTOR COMCTL32_Descriptor;
  99 extern const DLL_DESCRIPTOR COMDLG32_Descriptor;
 100 extern const DLL_DESCRIPTOR CRTDLL_Descriptor;
 101 extern const DLL_DESCRIPTOR OLE32_Descriptor;
 102 extern const DLL_DESCRIPTOR GDI32_Descriptor;
 103 extern const DLL_DESCRIPTOR KERNEL32_Descriptor;
 104 extern const DLL_DESCRIPTOR LZ32_Descriptor;
 105 extern const DLL_DESCRIPTOR MPR_Descriptor;
 106 extern const DLL_DESCRIPTOR NTDLL_Descriptor;
 107 extern const DLL_DESCRIPTOR SHELL32_Descriptor;
 108 extern const DLL_DESCRIPTOR USER32_Descriptor;
 109 extern const DLL_DESCRIPTOR VERSION_Descriptor;
 110 extern const DLL_DESCRIPTOR WINMM_Descriptor;
 111 extern const DLL_DESCRIPTOR WINSPOOL_Descriptor;
 112 extern const DLL_DESCRIPTOR WSOCK32_Descriptor;
 113
 114 /* Table of all built-in DLLs */
 115
 116 static BUILTIN_DLL BuiltinDLLs[] =
 117 {
 118     /* Win16 DLLs */
 119     { &KERNEL_Descriptor,   DLL_FLAG_ALWAYS_USED },
 120     { &USER_Descriptor,     DLL_FLAG_ALWAYS_USED },
 121     { &GDI_Descriptor,      DLL_FLAG_ALWAYS_USED },
 122     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 123     { &SHELL_Descriptor,    0 },
 124     { &SOUND_Descriptor,    0 },
 125     { &KEYBOARD_Descriptor, 0 },
 126     { &WINSOCK_Descriptor,  0 },
 127     { &STRESS_Descriptor,   0 },
 128     { &MMSYSTEM_Descriptor, 0 },
 129     { &SYSTEM_Descriptor,   0 },
 130     { &TOOLHELP_Descriptor, 0 },
 131     { &MOUSE_Descriptor,    0 },
 132     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 133     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 134     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 135     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 136     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 137     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 138     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 139     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 140     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 141     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 142     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 143     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 144     { &LZEXPAND_Descriptor, 0 },
 145     { &VER_Descriptor,      0 },
 146     { &W32SYS_Descriptor,   0 },
 147     { &WING_Descriptor,     0 },
 148     /* Win32 DLLs */
 149     { &ADVAPI32_Descriptor, 0 },
 150     { &COMCTL32_Descriptor, DLL_FLAG_NOT_USED },
 151     { &COMDLG32_Descriptor, 0 },
 152     { &CRTDLL_Descriptor,   0 },
 153     { &OLE32_Descriptor,    0 },
 154     { &GDI32_Descriptor,    0 },
 155     { &KERNEL32_Descriptor, DLL_FLAG_ALWAYS_USED },
 156     { &LZ32_Descriptor,     0 },
 157     { &MPR_Descriptor,      0 },
 158     { &NTDLL_Descriptor,    0 },
 159     { &SHELL32_Descriptor,  0 },
 160     { &USER32_Descriptor,   0 },
 161     { &VERSION_Descriptor,  0 },
 162     { &WINMM_Descriptor,    0 },
 163     { &WINSPOOL_Descriptor, 0 },
 164     { &WSOCK32_Descriptor,  0 },
 165     /* Last entry */
 166     { NULL, 0 }
 167 };
 168
 169
 170 /***********************************************************************
 171  *           BUILTIN_Init
 172  *
 173  * Load all built-in modules marked as 'always used'.
 174  */
 175 BOOL16 BUILTIN_Init(void)
 176 {
 177     BUILTIN_DLL *dll;
 178     NE_MODULE *pModule;
 179
 180     for (dll = BuiltinDLLs; dll->descr; dll++)
 181         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 182             if (!BUILTIN_LoadModule(dll->descr->name, TRUE)) return FALSE;
 183
 184     /* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
 185
 186     MODULE_SetEntryPoint( GetModuleHandle( "KERNEL" ), 178, GetWinFlags() );
 187
 188     /* Set the USER and GDI heap selectors */
 189
 190     pModule      = MODULE_GetPtr( GetModuleHandle( "USER" ));
 191     USER_HeapSel = (NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->selector;
 192     pModule      = MODULE_GetPtr( GetModuleHandle( "GDI" ));
 193     GDI_HeapSel  = (NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->selector;
 194
 195     return TRUE;
 196 }
 197
 198
 199 /***********************************************************************
 200  *           BUILTIN_LoadModule
 201  *
 202  * Load a built-in module. If the 'force' parameter is FALSE, we only
 203  * load the module if it has not been disabled via the -dll option.
 204  */
 205 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL16 force )
 206 {
 207     HMODULE16 hModule;
 208     NE_MODULE *pModule;
 209     BUILTIN_DLL *table;
 210     char dllname[16], *p;
 211
 212     /* Fix the name in case we have a full path and extension */
 213
 214     if ((p = strrchr( name, '\\' ))) name = p + 1;
 215     lstrcpyn32A( dllname, name, sizeof(dllname) );
 216     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 217
 218     for (table = BuiltinDLLs; table->descr; table++)
 219         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 220     if (!table->descr) return 0;
 221     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return 0;
 222
 223     hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, table->descr->module_start,
 224                                   table->descr->module_size, 0,
 225                                   FALSE, FALSE, FALSE, NULL );
 226     if (!hModule) return 0;
 227     FarSetOwner( hModule, hModule );
 228
 229     dprintf_module( stddeb, "Built-in %s: hmodule=%04x\n",
 230                     table->descr->name, hModule );
 231     pModule = (NE_MODULE *)GlobalLock16( hModule );
 232     pModule->self = hModule;
 233
 234     if (pModule->flags & NE_FFLAGS_WIN32)
 235     {
 236         pModule->pe_module = (PE_MODULE *)table;
 237         table->flags |= DLL_FLAG_WIN32;
 238     }
 239     else  /* Win16 module */
 240     {
 241         const WIN16_DESCRIPTOR *descr = &table->descr->u.win16;
 242         int minsize;
 243
 244         /* Allocate the code segment */
 245
 246         SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
 247         pSegTable->selector = GLOBAL_CreateBlock(GMEM_FIXED, descr->code_start,
 248                                                  pSegTable->minsize, hModule,
 249                                                  TRUE, TRUE, FALSE, NULL );
 250         if (!pSegTable->selector) return 0;
 251         pSegTable++;
 252
 253         /* Allocate the data segment */
 254
 255         minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 256         minsize += pModule->heap_size;
 257         if (minsize > 0x10000) minsize = 0x10000;
 258         pSegTable->selector = GLOBAL_Alloc( GMEM_FIXED, minsize,
 259                                             hModule, FALSE, FALSE, FALSE );
 260         if (!pSegTable->selector) return 0;
 261         if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->selector ),
 262                                         descr->data_start, pSegTable->minsize);
 263         if (pModule->heap_size)
 264             LocalInit( pSegTable->selector, pSegTable->minsize, minsize );
 265     }
 266
 267     MODULE_RegisterModule( pModule );
 268     return hModule;
 269 }
 270
 271
 272 /***********************************************************************
 273  *           BUILTIN_GetEntryPoint16
 274  *
 275  * Return the ordinal and name corresponding to a CS:IP address.
 276  * This is used only by relay debugging.
 277  */
 278 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 279 {
 280     static char buffer[80];
 281     WORD ordinal, i, max_offset;
 282     register BYTE *p;
 283     NE_MODULE *pModule;
 284
 285     if (!(pModule = MODULE_GetPtr( FarGetOwner( GlobalHandle16(cs) ))))
 286         return NULL;
 287
 288     /* Search for the ordinal */
 289
 290     p = (BYTE *)pModule + pModule->entry_table;
 291     max_offset = 0;
 292     ordinal = 1;
 293     *pOrd = 0;
 294     while (*p)
 295     {
 296         switch(p[1])
 297         {
 298         case 0:    /* unused */
 299             ordinal += *p;
 300             p += 2;
 301             break;
 302         case 1:    /* code segment */
 303             i = *p;
 304             p += 2;
 305             while (i-- > 0)
 306             {
 307                 p++;
 308                 if ((*(WORD *)p <= ip) && (*(WORD *)p >= max_offset))
 309                 {
 310                     max_offset = *(WORD *)p;
 311                     *pOrd = ordinal;
 312                 }
 313                 p += 2;
 314                 ordinal++;
 315             }
 316             break;
 317         case 0xff: /* moveable (should not happen in built-in modules) */
 318             fprintf( stderr, "Built-in module has moveable entry\n" );
 319             ordinal += *p;
 320             p += 2 + *p * 6;
 321             break;
 322         default:   /* other segment */
 323             ordinal += *p;
 324             p += 2 + *p * 3;
 325             break;
 326         }
 327     }
 328
 329     /* Search for the name in the resident names table */
 330     /* (built-in modules have no non-resident table)   */
 331
 332     p = (BYTE *)pModule + pModule->name_table;
 333     while (*p)
 334     {
 335         p += *p + 1 + sizeof(WORD);
 336         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 337     }
 338
 339     sprintf( buffer, "%.*s.%d: %.*s",
 340              *((BYTE *)pModule + pModule->name_table),
 341              (char *)pModule + pModule->name_table + 1,
 342              *pOrd, *p, (char *)(p + 1) );
 343     return buffer;
 344 }
 345
 346
 347 /***********************************************************************
 348  *           BUILTIN_GetEntryPoint32
 349  *
 350  * Return the name of the DLL entry point corresponding
 351  * to a relay entry point address. This is used only by relay debugging.
 352  */
 353 LPCSTR BUILTIN_GetEntryPoint32( void *relay )
 354 {
 355     static char buffer[80];
 356     BUILTIN_DLL *dll;
 357     const void **funcs;
 358     int i;
 359
 360     /* First find the module */
 361
 362     for (dll = BuiltinDLLs; dll->descr; dll++)
 363         if ((dll->flags & DLL_FLAG_WIN32) &&
 364             (dll->descr->u.win32.code_start <= relay) &&
 365             ((void *)dll->descr->u.win32.functions > relay))
 366             break;
 367     if (!dll->descr)
 368     {
 369         sprintf( buffer, "???.???: %08x", (UINT32)relay );
 370         return buffer;
 371     }
 372
 373     /* Now find the function */
 374
 375     relay = (BYTE *)relay - 11;  /* The relay entry point is 11 bytes long */
 376     funcs = dll->descr->u.win32.functions;
 377     for (i = 0; i < dll->descr->u.win32.size;i++) if (*funcs++ == relay) break;
 378     sprintf( buffer, "%s.%d: %s",
 379              dll->descr->name, i, dll->descr->u.win32.names[i] );
 380     return buffer;
 381 }
 382
 383
 384 /***********************************************************************
 385  *           BUILTIN_GetProcAddress32
 386  *
 387  * Implementation of GetProcAddress() for built-in Win32 modules.
 388  * FIXME: this should be unified with the real GetProcAddress32().
 389  */
 390 FARPROC32 BUILTIN_GetProcAddress32( NE_MODULE *pModule, LPCSTR function )
 391 {
 392     BUILTIN_DLL *dll = (BUILTIN_DLL *)pModule->pe_module;
 393     const WIN32_DESCRIPTOR *info = &dll->descr->u.win32;
 394
 395     if (!dll) return NULL;
 396
 397     if (HIWORD(function))  /* Find function by name */
 398     {
 399         int i;
 400
 401         dprintf_module( stddeb, "Looking for function %s in %s\n",
 402                         function, dll->descr->name );
 403         for (i = 0; i < info->size; i++)
 404             if (info->names[i] && !strcmp( function, info->names[i] ))
 405                 return (FARPROC32)info->functions[i];
 406     }
 407     else  /* Find function by ordinal */
 408     {
 409         WORD ordinal = LOWORD(function);
 410         dprintf_module( stddeb, "Looking for ordinal %d in %s\n",
 411                         ordinal, dll->descr->name );
 412         if (ordinal && ordinal < info->size)
 413             return (FARPROC32)info->functions[ordinal - info->base];
 414     }
 415     return NULL;
 416 }
 417
 418
 419 /***********************************************************************
 420  *           BUILTIN_ParseDLLOptions
 421  *
 422  * Set runtime DLL usage flags
 423  */
 424 BOOL16 BUILTIN_ParseDLLOptions( const char *str )
 425 {
 426     BUILTIN_DLL *dll;
 427     const char *p;
 428
 429     while (*str)
 430     {
 431         while (*str && isspace(*str)) str++;
 432         if (!*str) return TRUE;
 433         if ((*str != '+') && (*str != '-')) return FALSE;
 434         str++;
 435         if (!(p = strchr( str, ',' ))) p = str + strlen(str);
 436         while ((p > str) && isspace(p[-1])) p--;
 437         if (p == str) return FALSE;
 438         for (dll = BuiltinDLLs; dll->descr; dll++)
 439         {
 440             if (!lstrncmpi32A( str, dll->descr->name, (int)(p - str) ))
 441             {
 442                 if (str[-1] == '-')
 443                 {
 444                     if (dll->flags & DLL_FLAG_ALWAYS_USED) return FALSE;
 445                     dll->flags |= DLL_FLAG_NOT_USED;
 446                 }
 447                 else dll->flags &= ~DLL_FLAG_NOT_USED;
 448                 break;
 449             }
 450         }
 451         if (!dll->descr) return FALSE;
 452         str = p;
 453         while (*str && (isspace(*str) || (*str == ','))) str++;
 454     }
 455     return TRUE;
 456 }
 457
 458
 459 /***********************************************************************
 460  *           BUILTIN_PrintDLLs
 461  *
 462  * Print the list of built-in DLLs that can be disabled.
 463  */
 464 void BUILTIN_PrintDLLs(void)
 465 {
 466     int i;
 467     BUILTIN_DLL *dll;
 468
 469     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 470     {
 471         if (!(dll->flags & DLL_FLAG_ALWAYS_USED))
 472             fprintf( stderr, "%-9s%c", dll->descr->name,
 473                      ((++i) % 8) ? ' ' : '\n' );
 474     }
 475     fprintf(stderr,"\n");
 476     exit(1);
 477 }
 478
 479 #endif  /* WINELIB */