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 "winbase.h"
  11 #include "wine/winbase16.h"
  12 #include "wine/winestring.h"
  13 #include "builtin16.h"
  14 #include "builtin32.h"
  15 #include "global.h"
  16 #include "heap.h"
  17 #include "module.h"
  18 #include "miscemu.h"
  19 #include "neexe.h"
  20 #include "stackframe.h"
  21 #include "user.h"
  22 #include "process.h"
  23 #include "task.h"
  24 #include "debugtools.h"
  25 #include "toolhelp.h"
  26
  27 DEFAULT_DEBUG_CHANNEL(module)
  28
  29 typedef struct
  30 {
  31     const WIN16_DESCRIPTOR *descr;     /* DLL descriptor */
  32     int                     flags;     /* flags (see below) */
  33 } BUILTIN16_DLL;
  34
  35 /* DLL flags */
  36 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  37 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  38
  39 /* 16-bit DLLs */
  40
  41 extern const WIN16_DESCRIPTOR AVIFILE_Descriptor;
  42 extern const WIN16_DESCRIPTOR COMM_Descriptor;
  43 extern const WIN16_DESCRIPTOR COMMDLG_Descriptor;
  44 extern const WIN16_DESCRIPTOR COMPOBJ_Descriptor;
  45 extern const WIN16_DESCRIPTOR DDEML_Descriptor;
  46 extern const WIN16_DESCRIPTOR DISPDIB_Descriptor;
  47 extern const WIN16_DESCRIPTOR DISPLAY_Descriptor;
  48 extern const WIN16_DESCRIPTOR GDI_Descriptor;
  49 extern const WIN16_DESCRIPTOR KERNEL_Descriptor;
  50 extern const WIN16_DESCRIPTOR KEYBOARD_Descriptor;
  51 extern const WIN16_DESCRIPTOR LZEXPAND_Descriptor;
  52 extern const WIN16_DESCRIPTOR MMSYSTEM_Descriptor;
  53 extern const WIN16_DESCRIPTOR MOUSE_Descriptor;
  54 extern const WIN16_DESCRIPTOR MSACM_Descriptor;
  55 extern const WIN16_DESCRIPTOR MSVIDEO_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 RASAPI16_Descriptor;
  65 extern const WIN16_DESCRIPTOR SHELL_Descriptor;
  66 extern const WIN16_DESCRIPTOR SOUND_Descriptor;
  67 extern const WIN16_DESCRIPTOR STORAGE_Descriptor;
  68 extern const WIN16_DESCRIPTOR STRESS_Descriptor;
  69 extern const WIN16_DESCRIPTOR SYSTEM_Descriptor;
  70 extern const WIN16_DESCRIPTOR TOOLHELP_Descriptor;
  71 extern const WIN16_DESCRIPTOR TYPELIB_Descriptor;
  72 extern const WIN16_DESCRIPTOR USER_Descriptor;
  73 extern const WIN16_DESCRIPTOR VER_Descriptor;
  74 extern const WIN16_DESCRIPTOR W32SYS_Descriptor;
  75 extern const WIN16_DESCRIPTOR WIN32S16_Descriptor;
  76 extern const WIN16_DESCRIPTOR WIN87EM_Descriptor;
  77 extern const WIN16_DESCRIPTOR WINASPI_Descriptor;
  78 extern const WIN16_DESCRIPTOR WINDEBUG_Descriptor;
  79 extern const WIN16_DESCRIPTOR WINEPS_Descriptor;
  80 extern const WIN16_DESCRIPTOR WING_Descriptor;
  81 extern const WIN16_DESCRIPTOR WINSOCK_Descriptor;
  82 extern const WIN16_DESCRIPTOR WPROCS_Descriptor;
  83
  84 /* Table of all built-in DLLs */
  85
  86 static BUILTIN16_DLL BuiltinDLLs[] =
  87 {
  88     { &KERNEL_Descriptor,   0 },
  89     { &USER_Descriptor,     0 },
  90     { &GDI_Descriptor,      0 },
  91     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
  92     { &DISPLAY_Descriptor,  DLL_FLAG_ALWAYS_USED },
  93     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
  94     { &WINDEBUG_Descriptor, DLL_FLAG_NOT_USED },
  95     { &AVIFILE_Descriptor,  DLL_FLAG_NOT_USED },
  96     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
  97     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
  98     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
  99     { &DISPDIB_Descriptor,  0 },
 100     { &KEYBOARD_Descriptor, 0 },
 101     { &COMM_Descriptor,     0 },
 102     { &LZEXPAND_Descriptor, 0 },
 103     { &MMSYSTEM_Descriptor, 0 },
 104     { &MOUSE_Descriptor,    0 },
 105     { &MSACM_Descriptor,    0 },
 106     { &MSVIDEO_Descriptor,  0 },
 107     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 108     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 109     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 110     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 111     { &OLE2THK_Descriptor,  DLL_FLAG_NOT_USED },
 112     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 113     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 114     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 115     { &RASAPI16_Descriptor, 0 },
 116     { &SHELL_Descriptor,    0 },
 117     { &SOUND_Descriptor,    0 },
 118     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 119     { &STRESS_Descriptor,   0 },
 120     { &TOOLHELP_Descriptor, 0 },
 121     { &TYPELIB_Descriptor,  DLL_FLAG_NOT_USED },
 122     { &VER_Descriptor,      0 },
 123     { &W32SYS_Descriptor,   DLL_FLAG_NOT_USED },
 124     { &WIN32S16_Descriptor, DLL_FLAG_NOT_USED },
 125     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 126     { &WINASPI_Descriptor,  0 },
 127     { &WINEPS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 128     { &WING_Descriptor,     0 },
 129     { &WINSOCK_Descriptor,  0 },
 130     /* Last entry */
 131     { NULL, 0 }
 132 };
 133
 134   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 135 #define FIRST_INTERRUPT_ORDINAL 100
 136
 137
 138 /***********************************************************************
 139  *           BUILTIN_DoLoadModule16
 140  *
 141  * Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
 142  * and BUILTIN_Init.
 143  */
 144 static HMODULE16 BUILTIN_DoLoadModule16( const WIN16_DESCRIPTOR *descr )
 145 {
 146     NE_MODULE *pModule;
 147     int minsize;
 148     SEGTABLEENTRY *pSegTable;
 149
 150     HMODULE16 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
 151                                             descr->module_size, 0,
 152                                             FALSE, FALSE, FALSE, NULL );
 153     if (!hModule) return 0;
 154     FarSetOwner16( hModule, hModule );
 155
 156     TRACE("Built-in %s: hmodule=%04x\n",
 157                     descr->name, hModule );
 158     pModule = (NE_MODULE *)GlobalLock16( hModule );
 159     pModule->self = hModule;
 160
 161     /* Allocate the code segment */
 162
 163     pSegTable = NE_SEG_TABLE( pModule );
 164     pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
 165                                               pSegTable->minsize, hModule,
 166                                               TRUE, TRUE, FALSE, NULL );
 167     if (!pSegTable->hSeg) return 0;
 168     pSegTable++;
 169
 170     /* Allocate the data segment */
 171
 172     minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 173     minsize += pModule->heap_size;
 174     if (minsize > 0x10000) minsize = 0x10000;
 175     pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
 176                                         hModule, FALSE, FALSE, FALSE );
 177     if (!pSegTable->hSeg) return 0;
 178     if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
 179                                     descr->data_start, pSegTable->minsize);
 180     if (pModule->heap_size)
 181         LocalInit16( GlobalHandleToSel16(pSegTable->hSeg),
 182                 pSegTable->minsize, minsize );
 183
 184     NE_RegisterModule( pModule );
 185     return hModule;
 186 }
 187
 188
 189 /***********************************************************************
 190  *           BUILTIN_Init
 191  *
 192  * Load all built-in modules marked as 'always used'.
 193  */
 194 BOOL BUILTIN_Init(void)
 195 {
 196     BUILTIN16_DLL *dll;
 197     WORD vector;
 198     HMODULE16 hModule;
 199
 200     for (dll = BuiltinDLLs; dll->descr; dll++)
 201     {
 202         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 203             if (!BUILTIN_DoLoadModule16( dll->descr )) return FALSE;
 204     }
 205
 206     /* Set interrupt vectors from entry points in WPROCS.DLL */
 207
 208     hModule = GetModuleHandle16( "WPROCS" );
 209     for (vector = 0; vector < 256; vector++)
 210     {
 211         FARPROC16 proc = NE_GetEntryPoint( hModule,
 212                                            FIRST_INTERRUPT_ORDINAL + vector );
 213         assert(proc);
 214         INT_SetPMHandler( vector, proc );
 215     }
 216
 217     return TRUE;
 218 }
 219
 220
 221 /***********************************************************************
 222  *           BUILTIN_LoadModule
 223  *
 224  * Load a built-in module. If the 'force' parameter is FALSE, we only
 225  * load the module if it has not been disabled via the -dll option.
 226  */
 227 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL force )
 228 {
 229     BUILTIN16_DLL *table;
 230     char dllname[16], *p;
 231
 232     /* Fix the name in case we have a full path and extension */
 233
 234     if ((p = strrchr( name, '\\' ))) name = p + 1;
 235     lstrcpynA( dllname, name, sizeof(dllname) );
 236     p = strrchr( dllname, '.' );
 237
 238     if (!p) strcat( dllname, ".dll" );
 239
 240     for (table = BuiltinDLLs; table->descr; table++)
 241     {
 242        NE_MODULE *pModule = (NE_MODULE *)table->descr->module_start;
 243        OFSTRUCT *pOfs = (OFSTRUCT *)((LPBYTE)pModule + pModule->fileinfo);
 244        if (!lstrcmpiA( pOfs->szPathName, dllname )) break;
 245     }
 246
 247     if (!table->descr) return (HMODULE16)2;
 248
 249     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return (HMODULE16)2;
 250
 251     return BUILTIN_DoLoadModule16( table->descr );
 252 }
 253
 254
 255 /***********************************************************************
 256  *           BUILTIN_GetEntryPoint16
 257  *
 258  * Return the ordinal, name, and type info corresponding to a CS:IP address.
 259  * This is used only by relay debugging.
 260  */
 261 LPCSTR BUILTIN_GetEntryPoint16( STACK16FRAME *frame, LPSTR name, WORD *pOrd )
 262 {
 263     WORD i, max_offset;
 264     register BYTE *p;
 265     NE_MODULE *pModule;
 266     ET_BUNDLE *bundle;
 267     ET_ENTRY *entry;
 268
 269     if (!(pModule = NE_GetPtr( FarGetOwner16( GlobalHandle16( frame->module_cs ) ))))
 270         return NULL;
 271
 272     max_offset = 0;
 273     *pOrd = 0;
 274     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
 275     do
 276     {
 277         entry = (ET_ENTRY *)((BYTE *)bundle+6);
 278         for (i = bundle->first + 1; i <= bundle->last; i++)
 279         {
 280             if ((entry->offs < frame->entry_ip)
 281             && (entry->segnum == 1) /* code segment ? */
 282             && (entry->offs >= max_offset))
 283             {
 284                 max_offset = entry->offs;
 285                 *pOrd = i;
 286             }
 287             entry++;
 288         }
 289     } while ( (bundle->next)
 290            && (bundle = (ET_BUNDLE *)((BYTE *)pModule+bundle->next)));
 291
 292     /* Search for the name in the resident names table */
 293     /* (built-in modules have no non-resident table)   */
 294
 295     p = (BYTE *)pModule + pModule->name_table;
 296     while (*p)
 297     {
 298         p += *p + 1 + sizeof(WORD);
 299         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 300     }
 301
 302     sprintf( name, "%.*s.%d: %.*s",
 303              *((BYTE *)pModule + pModule->name_table),
 304              (char *)pModule + pModule->name_table + 1,
 305              *pOrd, *p, (char *)(p + 1) );
 306
 307     /* Retrieve type info string */
 308     return *(LPCSTR *)((LPBYTE)PTR_SEG_OFF_TO_LIN( frame->module_cs, frame->callfrom_ip ) + 4);
 309 }
 310
 311
 312 /**********************************************************************
 313  *          BUILTIN_DefaultIntHandler
 314  *
 315  * Default interrupt handler.
 316  */
 317 void WINAPI BUILTIN_DefaultIntHandler( CONTEXT86 *context )
 318 {
 319     WORD ordinal;
 320     char name[80];
 321     BUILTIN_GetEntryPoint16( CURRENT_STACK16, name, &ordinal );
 322     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 323 }
 324