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