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        **functions; /* Pointer to functions table */
  35     const char * const *names;     /* Pointer to names table */
  36 } WIN32_DESCRIPTOR;
  37
  38 typedef struct
  39 {
  40     const char *name;              /* DLL name */
  41     void       *module_start;      /* 32-bit address of the module data */
  42     int         module_size;       /* Size of the module data */
  43     union
  44     {
  45         WIN16_DESCRIPTOR win16;    /* Descriptor for Win16 DLL */
  46         WIN32_DESCRIPTOR win32;    /* Descriptor for Win32 DLL */
  47     } u;
  48 } DLL_DESCRIPTOR;
  49
  50 typedef struct
  51 {
  52     const DLL_DESCRIPTOR *descr;   /* DLL descriptor */
  53     int                   flags;   /* flags (see below) */
  54 } BUILTIN_DLL;
  55
  56
  57 /* DLL flags */
  58 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  59 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  60 #define DLL_FLAG_WIN32       0x04  /* DLL is a Win32 DLL */
  61
  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 NTDLL_Descriptor;
 104 extern const DLL_DESCRIPTOR SHELL32_Descriptor;
 105 extern const DLL_DESCRIPTOR USER32_Descriptor;
 106 extern const DLL_DESCRIPTOR WINSPOOL_Descriptor;
 107 extern const DLL_DESCRIPTOR WSOCK32_Descriptor;
 108
 109 /* Table of all built-in DLLs */
 110
 111 static BUILTIN_DLL BuiltinDLLs[] =
 112 {
 113     /* Win16 DLLs */
 114     { &KERNEL_Descriptor,   DLL_FLAG_ALWAYS_USED },
 115     { &USER_Descriptor,     DLL_FLAG_ALWAYS_USED },
 116     { &GDI_Descriptor,      DLL_FLAG_ALWAYS_USED },
 117     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 118     { &SHELL_Descriptor,    0 },
 119     { &SOUND_Descriptor,    0 },
 120     { &KEYBOARD_Descriptor, 0 },
 121     { &WINSOCK_Descriptor,  0 },
 122     { &STRESS_Descriptor,   0 },
 123     { &MMSYSTEM_Descriptor, 0 },
 124     { &SYSTEM_Descriptor,   0 },
 125     { &TOOLHELP_Descriptor, 0 },
 126     { &MOUSE_Descriptor,    0 },
 127     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 128     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 129     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 130     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 131     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 132     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 133     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 134     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 135     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 136     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 137     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 138     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 139     { &LZEXPAND_Descriptor, 0 },
 140     { &VER_Descriptor,      0 },
 141     { &W32SYS_Descriptor,   0 },
 142     /* Win32 DLLs */
 143     { &ADVAPI32_Descriptor, 0 },
 144     { &COMCTL32_Descriptor, 0 },
 145     { &COMDLG32_Descriptor, 0 },
 146     { &CRTDLL_Descriptor, 0 },
 147     { &OLE32_Descriptor,    0 },
 148     { &GDI32_Descriptor,    0 },
 149     { &KERNEL32_Descriptor, DLL_FLAG_ALWAYS_USED },
 150     { &NTDLL_Descriptor,    0 },
 151     { &SHELL32_Descriptor,  0 },
 152     { &USER32_Descriptor,   0 },
 153     { &WINSPOOL_Descriptor, 0 },
 154     { &WSOCK32_Descriptor,  0 },
 155     /* Last entry */
 156     { NULL, 0 }
 157 };
 158
 159
 160 /***********************************************************************
 161  *           BUILTIN_Init
 162  *
 163  * Load all built-in modules marked as 'always used'.
 164  */
 165 BOOL BUILTIN_Init(void)
 166 {
 167     BUILTIN_DLL *dll;
 168     NE_MODULE *pModule;
 169
 170     for (dll = BuiltinDLLs; dll->descr; dll++)
 171         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 172             if (!BUILTIN_LoadModule(dll->descr->name, TRUE)) return FALSE;
 173
 174     /* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
 175
 176     MODULE_SetEntryPoint( GetModuleHandle( "KERNEL" ), 178, GetWinFlags() );
 177
 178     /* Set the USER and GDI heap selectors */
 179
 180     pModule      = MODULE_GetPtr( GetModuleHandle( "USER" ));
 181     USER_HeapSel = (NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->selector;
 182     pModule      = MODULE_GetPtr( GetModuleHandle( "GDI" ));
 183     GDI_HeapSel  = (NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->selector;
 184
 185     return TRUE;
 186 }
 187
 188
 189 /***********************************************************************
 190  *           BUILTIN_LoadModule
 191  *
 192  * Load a built-in module. If the 'force' parameter is FALSE, we only
 193  * load the module if it has not been disabled via the -dll option.
 194  */
 195 HMODULE BUILTIN_LoadModule( LPCSTR name, BOOL force )
 196 {
 197     HMODULE hModule;
 198     NE_MODULE *pModule;
 199     BUILTIN_DLL *table;
 200     char dllname[16], *p;
 201
 202     /* Fix the name in case we have a full path and extension */
 203
 204     if ((p = strrchr( name, '\\' ))) name = p + 1;
 205     lstrcpyn( dllname, name, sizeof(dllname) );
 206     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 207
 208     for (table = BuiltinDLLs; table->descr; table++)
 209         if (!lstrcmpi( table->descr->name, dllname )) break;
 210     if (!table->descr) return 0;
 211     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return 0;
 212
 213     hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, table->descr->module_start,
 214                                   table->descr->module_size, 0,
 215                                   FALSE, FALSE, FALSE, NULL );
 216     if (!hModule) return 0;
 217     FarSetOwner( hModule, hModule );
 218
 219     dprintf_module( stddeb, "Built-in %s: hmodule=%04x\n",
 220                     table->descr->name, hModule );
 221     pModule = (NE_MODULE *)GlobalLock16( hModule );
 222     pModule->self = hModule;
 223
 224     if (pModule->flags & NE_FFLAGS_WIN32)
 225     {
 226         pModule->pe_module = (PE_MODULE *)table;
 227     }
 228     else  /* Win16 module */
 229     {
 230         const WIN16_DESCRIPTOR *descr = &table->descr->u.win16;
 231         int minsize;
 232
 233         /* Allocate the code segment */
 234
 235         SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
 236         pSegTable->selector = GLOBAL_CreateBlock(GMEM_FIXED, descr->code_start,
 237                                                  pSegTable->minsize, hModule,
 238                                                  TRUE, TRUE, FALSE, NULL );
 239         if (!pSegTable->selector) return 0;
 240         pSegTable++;
 241
 242         /* Allocate the data segment */
 243
 244         minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 245         minsize += pModule->heap_size;
 246         if (minsize > 0x10000) minsize = 0x10000;
 247         pSegTable->selector = GLOBAL_Alloc( GMEM_FIXED, minsize,
 248                                             hModule, FALSE, FALSE, FALSE );
 249         if (!pSegTable->selector) return 0;
 250         if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->selector ),
 251                                         descr->data_start, pSegTable->minsize);
 252         if (pModule->heap_size)
 253             LocalInit( pSegTable->selector, pSegTable->minsize, minsize );
 254     }
 255
 256     MODULE_RegisterModule( pModule );
 257     return hModule;
 258 }
 259
 260
 261 /***********************************************************************
 262  *           BUILTIN_GetEntryPoint
 263  *
 264  * Return the built-in module, ordinal and name corresponding
 265  * to a CS:IP address. This is used only by relay debugging.
 266  */
 267 NE_MODULE *BUILTIN_GetEntryPoint( WORD cs, WORD ip, WORD *pOrd, char **ppName )
 268 {
 269     WORD ordinal, i, max_offset;
 270     register BYTE *p;
 271     NE_MODULE *pModule;
 272
 273     if (!(pModule = MODULE_GetPtr( FarGetOwner( GlobalHandle16(cs) ))))
 274         return NULL;
 275
 276     /* Search for the ordinal */
 277
 278     p = (BYTE *)pModule + pModule->entry_table;
 279     max_offset = 0;
 280     ordinal = 1;
 281     *pOrd = 0;
 282     while (*p)
 283     {
 284         switch(p[1])
 285         {
 286         case 0:    /* unused */
 287             ordinal += *p;
 288             p += 2;
 289             break;
 290         case 1:    /* code segment */
 291             i = *p;
 292             p += 2;
 293             while (i-- > 0)
 294             {
 295                 p++;
 296                 if ((*(WORD *)p <= ip) && (*(WORD *)p >= max_offset))
 297                 {
 298                     max_offset = *(WORD *)p;
 299                     *pOrd = ordinal;
 300                 }
 301                 p += 2;
 302                 ordinal++;
 303             }
 304             break;
 305         case 0xff: /* moveable (should not happen in built-in modules) */
 306             fprintf( stderr, "Built-in module has moveable entry\n" );
 307             ordinal += *p;
 308             p += 2 + *p * 6;
 309             break;
 310         default:   /* other segment */
 311             ordinal += *p;
 312             p += 2 + *p * 3;
 313             break;
 314         }
 315     }
 316
 317     /* Search for the name in the resident names table */
 318     /* (built-in modules have no non-resident table)   */
 319
 320     p = (BYTE *)pModule + pModule->name_table;
 321     *ppName = "???";
 322     while (*p)
 323     {
 324         p += *p + 1 + sizeof(WORD);
 325         if (*(WORD *)(p + *p + 1) == *pOrd)
 326         {
 327             *ppName = (char *)p;
 328             break;
 329         }
 330     }
 331
 332     return pModule;
 333 }
 334
 335
 336 /***********************************************************************
 337  *           BUILTIN_GetProcAddress32
 338  *
 339  * Implementation of GetProcAddress() for built-in Win32 modules.
 340  * FIXME: this should be unified with the real GetProcAddress32().
 341  */
 342 DWORD BUILTIN_GetProcAddress32( NE_MODULE *pModule, char *function )
 343 {
 344     BUILTIN_DLL *dll = (BUILTIN_DLL *)pModule->pe_module;
 345     const WIN32_DESCRIPTOR *info = &dll->descr->u.win32;
 346
 347     if (!dll) return 0;
 348
 349     if (HIWORD(function))  /* Find function by name */
 350     {
 351         int i;
 352
 353         dprintf_module( stddeb, "Looking for function %s in %s\n",
 354                         function, dll->descr->name );
 355         for (i = 0; i < info->size; i++)
 356             if (info->names[i] && !strcmp( function, info->names[i] ))
 357                 return (DWORD)info->functions[i];
 358     }
 359     else  /* Find function by ordinal */
 360     {
 361         WORD ordinal = LOWORD(function);
 362         dprintf_module( stddeb, "Looking for ordinal %d in %s\n",
 363                         ordinal, dll->descr->name );
 364         if (ordinal && ordinal < info->size)
 365             return (DWORD)info->functions[ordinal - info->base];
 366     }
 367     return 0;
 368 }
 369
 370
 371 /***********************************************************************
 372  *           BUILTIN_ParseDLLOptions
 373  *
 374  * Set runtime DLL usage flags
 375  */
 376 BOOL BUILTIN_ParseDLLOptions( const char *str )
 377 {
 378     BUILTIN_DLL *dll;
 379     const char *p;
 380
 381     while (*str)
 382     {
 383         while (*str && isspace(*str)) str++;
 384         if (!*str) return TRUE;
 385         if ((*str != '+') && (*str != '-')) return FALSE;
 386         str++;
 387         if (!(p = strchr( str, ',' ))) p = str + strlen(str);
 388         while ((p > str) && isspace(p[-1])) p--;
 389         if (p == str) return FALSE;
 390         for (dll = BuiltinDLLs; dll->descr; dll++)
 391         {
 392             if (!lstrncmpi( str, dll->descr->name, (int)(p - str) ))
 393             {
 394                 if (str[-1] == '-')
 395                 {
 396                     if (dll->flags & DLL_FLAG_ALWAYS_USED) return FALSE;
 397                     dll->flags |= DLL_FLAG_NOT_USED;
 398                 }
 399                 else dll->flags &= ~DLL_FLAG_NOT_USED;
 400                 break;
 401             }
 402         }
 403         if (!dll->descr) return FALSE;
 404         str = p;
 405         while (*str && (isspace(*str) || (*str == ','))) str++;
 406     }
 407     return TRUE;
 408 }
 409
 410
 411 /***********************************************************************
 412  *           BUILTIN_PrintDLLs
 413  *
 414  * Print the list of built-in DLLs that can be disabled.
 415  */
 416 void BUILTIN_PrintDLLs(void)
 417 {
 418     int i;
 419     BUILTIN_DLL *dll;
 420
 421     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 422     {
 423         if (!(dll->flags & DLL_FLAG_ALWAYS_USED))
 424             fprintf( stderr, "%-9s%c", dll->descr->name,
 425                      ((++i) % 8) ? ' ' : '\n' );
 426     }
 427     fprintf(stderr,"\n");
 428     exit(1);
 429 }
 430
 431 #endif  /* WINELIB */