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