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 OLE2CONV_Descriptor;
  57 extern const WIN16_DESCRIPTOR OLE2DISP_Descriptor;
  58 extern const WIN16_DESCRIPTOR OLE2NLS_Descriptor;
  59 extern const WIN16_DESCRIPTOR OLE2PROX_Descriptor;
  60 extern const WIN16_DESCRIPTOR OLE2THK_Descriptor;
  61 extern const WIN16_DESCRIPTOR OLE2_Descriptor;
  62 extern const WIN16_DESCRIPTOR OLECLI_Descriptor;
  63 extern const WIN16_DESCRIPTOR OLESVR_Descriptor;
  64 extern const WIN16_DESCRIPTOR SHELL_Descriptor;
  65 extern const WIN16_DESCRIPTOR SOUND_Descriptor;
  66 extern const WIN16_DESCRIPTOR STORAGE_Descriptor;
  67 extern const WIN16_DESCRIPTOR STRESS_Descriptor;
  68 extern const WIN16_DESCRIPTOR SYSTEM_Descriptor;
  69 extern const WIN16_DESCRIPTOR TOOLHELP_Descriptor;
  70 extern const WIN16_DESCRIPTOR TYPELIB_Descriptor;
  71 extern const WIN16_DESCRIPTOR USER_Descriptor;
  72 extern const WIN16_DESCRIPTOR VER_Descriptor;
  73 extern const WIN16_DESCRIPTOR W32SYS_Descriptor;
  74 extern const WIN16_DESCRIPTOR WIN32S16_Descriptor;
  75 extern const WIN16_DESCRIPTOR WIN87EM_Descriptor;
  76 extern const WIN16_DESCRIPTOR WINASPI_Descriptor;
  77 extern const WIN16_DESCRIPTOR WINDEBUG_Descriptor;
  78 extern const WIN16_DESCRIPTOR WING_Descriptor;
  79 extern const WIN16_DESCRIPTOR WINSOCK_Descriptor;
  80 extern const WIN16_DESCRIPTOR WPROCS_Descriptor;
  81
  82 /* Table of all built-in DLLs */
  83
  84 static BUILTIN16_DLL BuiltinDLLs[] =
  85 {
  86     { &KERNEL_Descriptor,   DLL_FLAG_ALWAYS_USED },
  87     { &USER_Descriptor,     DLL_FLAG_ALWAYS_USED },
  88     { &GDI_Descriptor,      DLL_FLAG_ALWAYS_USED },
  89     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
  90     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
  91     { &WINDEBUG_Descriptor, DLL_FLAG_ALWAYS_USED },
  92     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
  93     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
  94     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
  95     { &KEYBOARD_Descriptor, 0 },
  96     { &LZEXPAND_Descriptor, 0 },
  97     { &MMSYSTEM_Descriptor, 0 },
  98     { &MOUSE_Descriptor,    0 },
  99     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 100     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 101     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 102     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 103     { &OLE2THK_Descriptor,  DLL_FLAG_NOT_USED },
 104     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 105     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 106     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 107     { &SHELL_Descriptor,    0 },
 108     { &SOUND_Descriptor,    0 },
 109     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 110     { &STRESS_Descriptor,   0 },
 111     { &TOOLHELP_Descriptor, 0 },
 112     { &TYPELIB_Descriptor,  0 },
 113     { &VER_Descriptor,      0 },
 114     { &W32SYS_Descriptor,   0 },
 115     { &WIN32S16_Descriptor, 0 },
 116     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 117     { &WINASPI_Descriptor,  0 },
 118     { &WING_Descriptor,     0 },
 119     { &WINSOCK_Descriptor,  0 },
 120     /* Last entry */
 121     { NULL, 0 }
 122 };
 123
 124   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 125 #define FIRST_INTERRUPT_ORDINAL 100
 126
 127
 128 /***********************************************************************
 129  *           BUILTIN_DoLoadModule16
 130  *
 131  * Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
 132  * and BUILTIN_Init.
 133  */
 134 static HMODULE16 BUILTIN_DoLoadModule16( const WIN16_DESCRIPTOR *descr )
 135 {
 136     NE_MODULE *pModule;
 137     int minsize;
 138     SEGTABLEENTRY *pSegTable;
 139
 140     HMODULE16 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
 141                                             descr->module_size, 0,
 142                                             FALSE, FALSE, FALSE, NULL );
 143     if (!hModule) return 0;
 144     FarSetOwner( hModule, hModule );
 145
 146     TRACE(module, "Built-in %s: hmodule=%04x\n",
 147                     descr->name, hModule );
 148     pModule = (NE_MODULE *)GlobalLock16( hModule );
 149     pModule->self = hModule;
 150
 151     /* Allocate the code segment */
 152
 153     pSegTable = NE_SEG_TABLE( pModule );
 154     pSegTable->selector = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
 155                                               pSegTable->minsize, hModule,
 156                                               TRUE, TRUE, FALSE, NULL );
 157     if (!pSegTable->selector) return 0;
 158     pSegTable++;
 159
 160     /* Allocate the data segment */
 161
 162     minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 163     minsize += pModule->heap_size;
 164     if (minsize > 0x10000) minsize = 0x10000;
 165     pSegTable->selector = GLOBAL_Alloc( GMEM_FIXED, minsize,
 166                                         hModule, FALSE, FALSE, FALSE );
 167     if (!pSegTable->selector) return 0;
 168     if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->selector ),
 169                                     descr->data_start, pSegTable->minsize);
 170     if (pModule->heap_size)
 171         LocalInit( pSegTable->selector, pSegTable->minsize, minsize );
 172
 173     MODULE_RegisterModule( pModule );
 174     return hModule;
 175 }
 176
 177
 178 /***********************************************************************
 179  *           BUILTIN_Init
 180  *
 181  * Load all built-in modules marked as 'always used'.
 182  */
 183 BOOL32 BUILTIN_Init(void)
 184 {
 185     BUILTIN16_DLL *dll;
 186     NE_MODULE *pModule;
 187     WORD vector;
 188     HMODULE16 hModule;
 189
 190     fnBUILTIN_LoadModule = BUILTIN_LoadModule;
 191
 192     for (dll = BuiltinDLLs; dll->descr; dll++)
 193     {
 194         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 195             if (!BUILTIN_DoLoadModule16( dll->descr )) return FALSE;
 196     }
 197
 198     /* Set the USER and GDI heap selectors */
 199
 200     pModule      = MODULE_GetPtr( GetModuleHandle16( "USER" ));
 201     USER_HeapSel = (NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->selector;
 202     pModule      = MODULE_GetPtr( GetModuleHandle16( "GDI" ));
 203     GDI_HeapSel  = (NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->selector;
 204
 205     /* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
 206
 207     hModule = GetModuleHandle16( "KERNEL" );
 208     MODULE_SetEntryPoint( hModule, 178, GetWinFlags() );
 209
 210     /* Initialize the real-mode selector entry points */
 211
 212     DOSMEM_InitExports( hModule );
 213
 214     /* Set interrupt vectors from entry points in WPROCS.DLL */
 215
 216     hModule = GetModuleHandle16( "WPROCS" );
 217     for (vector = 0; vector < 256; vector++)
 218     {
 219         FARPROC16 proc = MODULE_GetEntryPoint( hModule,
 220                                                FIRST_INTERRUPT_ORDINAL+vector);
 221         assert(proc);
 222         INT_SetHandler( vector, proc );
 223     }
 224
 225     return TRUE;
 226 }
 227
 228
 229 /***********************************************************************
 230  *           BUILTIN_LoadModule
 231  *
 232  * Load a built-in module. If the 'force' parameter is FALSE, we only
 233  * load the module if it has not been disabled via the -dll option.
 234  */
 235 HMODULE32 BUILTIN_LoadModule( LPCSTR name, BOOL32 force )
 236 {
 237     BUILTIN16_DLL *table;
 238     char dllname[16], *p;
 239
 240     /* Fix the name in case we have a full path and extension */
 241
 242     if ((p = strrchr( name, '\\' ))) name = p + 1;
 243     lstrcpyn32A( dllname, name, sizeof(dllname) );
 244     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 245
 246     for (table = BuiltinDLLs; table->descr; table++)
 247         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 248     if (!table->descr) return BUILTIN32_LoadModule( name, force,
 249                                                     PROCESS_Current() );
 250     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return 0;
 251
 252     return BUILTIN_DoLoadModule16( table->descr );
 253 }
 254
 255
 256 /***********************************************************************
 257  *           BUILTIN_GetEntryPoint16
 258  *
 259  * Return the ordinal and name corresponding to a CS:IP address.
 260  * This is used only by relay debugging.
 261  */
 262 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 263 {
 264     static char buffer[80];
 265     WORD ordinal, i, max_offset;
 266     register BYTE *p;
 267     NE_MODULE *pModule;
 268
 269     if (!(pModule = MODULE_GetPtr( FarGetOwner( GlobalHandle16(cs) ))))
 270         return NULL;
 271
 272     /* Search for the ordinal */
 273
 274     p = (BYTE *)pModule + pModule->entry_table;
 275     max_offset = 0;
 276     ordinal = 1;
 277     *pOrd = 0;
 278     while (*p)
 279     {
 280         switch(p[1])
 281         {
 282         case 0:    /* unused */
 283             ordinal += *p;
 284             p += 2;
 285             break;
 286         case 1:    /* code segment */
 287             i = *p;
 288             p += 2;
 289             while (i-- > 0)
 290             {
 291                 p++;
 292                 if ((*(WORD *)p <= ip) && (*(WORD *)p >= max_offset))
 293                 {
 294                     max_offset = *(WORD *)p;
 295                     *pOrd = ordinal;
 296                 }
 297                 p += 2;
 298                 ordinal++;
 299             }
 300             break;
 301         case 0xff: /* moveable (should not happen in built-in modules) */
 302             fprintf( stderr, "Built-in module has moveable entry\n" );
 303             ordinal += *p;
 304             p += 2 + *p * 6;
 305             break;
 306         default:   /* other segment */
 307             ordinal += *p;
 308             p += 2 + *p * 3;
 309             break;
 310         }
 311     }
 312
 313     /* Search for the name in the resident names table */
 314     /* (built-in modules have no non-resident table)   */
 315
 316     p = (BYTE *)pModule + pModule->name_table;
 317     while (*p)
 318     {
 319         p += *p + 1 + sizeof(WORD);
 320         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 321     }
 322
 323     sprintf( buffer, "%.*s.%d: %.*s",
 324              *((BYTE *)pModule + pModule->name_table),
 325              (char *)pModule + pModule->name_table + 1,
 326              *pOrd, *p, (char *)(p + 1) );
 327     return buffer;
 328 }
 329
 330
 331 /**********************************************************************
 332  *          BUILTIN_DefaultIntHandler
 333  *
 334  * Default interrupt handler.
 335  */
 336 void BUILTIN_DefaultIntHandler( CONTEXT *context )
 337 {
 338     WORD ordinal;
 339     STACK16FRAME *frame = CURRENT_STACK16;
 340     BUILTIN_GetEntryPoint16( frame->entry_cs, frame->entry_ip, &ordinal );
 341     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 342 }
 343
 344
 345 /***********************************************************************
 346  *           BUILTIN_ParseDLLOptions
 347  *
 348  * Set runtime DLL usage flags
 349  */
 350 BOOL32 BUILTIN_ParseDLLOptions( const char *str )
 351 {
 352     BUILTIN16_DLL *dll;
 353     const char *p;
 354
 355     while (*str)
 356     {
 357         while (*str && isspace(*str)) str++;
 358         if (!*str) return TRUE;
 359         if ((*str != '+') && (*str != '-')) return FALSE;
 360         str++;
 361         if (!(p = strchr( str, ',' ))) p = str + strlen(str);
 362         while ((p > str) && isspace(p[-1])) p--;
 363         if (p == str) return FALSE;
 364         for (dll = BuiltinDLLs; dll->descr; dll++)
 365         {
 366             if (!lstrncmpi32A( str, dll->descr->name, (int)(p - str) ))
 367             {
 368                 if (dll->descr->name[(int)(p-str)])  /* only partial match */
 369                         continue;
 370                 if (str[-1] == '-')
 371                 {
 372                     if (dll->flags & DLL_FLAG_ALWAYS_USED) return FALSE;
 373                     dll->flags |= DLL_FLAG_NOT_USED;
 374                 }
 375                 else dll->flags &= ~DLL_FLAG_NOT_USED;
 376                 break;
 377             }
 378         }
 379         if (!dll->descr)
 380             if (!BUILTIN32_EnableDLL( str, (int)(p - str), (str[-1] == '+') ))
 381                 return FALSE;
 382         str = p;
 383         while (*str && (isspace(*str) || (*str == ','))) str++;
 384     }
 385     return TRUE;
 386 }
 387
 388
 389 /***********************************************************************
 390  *           BUILTIN_PrintDLLs
 391  *
 392  * Print the list of built-in DLLs that can be disabled.
 393  */
 394 void BUILTIN_PrintDLLs(void)
 395 {
 396     int i;
 397     BUILTIN16_DLL *dll;
 398
 399     fprintf(stderr,"Example: -dll -ole2    Do not use emulated OLE2.DLL\n");
 400     fprintf(stderr,"Available Win16 DLLs:\n");
 401     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 402     {
 403         if (!(dll->flags & DLL_FLAG_ALWAYS_USED))
 404             fprintf( stderr, "%-9s%c", dll->descr->name,
 405                      ((++i) % 8) ? ' ' : '\n' );
 406     }
 407     fprintf(stderr,"\n");
 408     BUILTIN32_PrintDLLs();
 409 }