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 "builtin32.h"
  14 #include "global.h"
  15 #include "heap.h"
  16 #include "module.h"
  17 #include "miscemu.h"
  18 #include "neexe.h"
  19 #include "stackframe.h"
  20 #include "user.h"
  21 #include "process.h"
  22 #include "snoop.h"
  23 #include "task.h"
  24 #include "debug.h"
  25
  26 DEFAULT_DEBUG_CHANNEL(module)
  27
  28 /* Built-in modules descriptors */
  29 /* Don't change these structures! (see tools/build.c) */
  30
  31 typedef struct
  32 {
  33     const char *name;              /* DLL name */
  34     void       *module_start;      /* 32-bit address of the module data */
  35     int         module_size;       /* Size of the module data */
  36     const BYTE *code_start;        /* 32-bit address of DLL code */
  37     const BYTE *data_start;        /* 32-bit address of DLL data */
  38 } WIN16_DESCRIPTOR;
  39
  40 typedef struct
  41 {
  42     const WIN16_DESCRIPTOR *descr;     /* DLL descriptor */
  43     int                     flags;     /* flags (see below) */
  44 } BUILTIN16_DLL;
  45
  46 /* DLL flags */
  47 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  48 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  49
  50 /* 16-bit DLLs */
  51
  52 extern const WIN16_DESCRIPTOR AVIFILE_Descriptor;
  53 extern const WIN16_DESCRIPTOR COMM_Descriptor;
  54 extern const WIN16_DESCRIPTOR COMMDLG_Descriptor;
  55 extern const WIN16_DESCRIPTOR COMPOBJ_Descriptor;
  56 extern const WIN16_DESCRIPTOR DDEML_Descriptor;
  57 extern const WIN16_DESCRIPTOR DISPDIB_Descriptor;
  58 extern const WIN16_DESCRIPTOR DISPLAY_Descriptor;
  59 extern const WIN16_DESCRIPTOR GDI_Descriptor;
  60 extern const WIN16_DESCRIPTOR KERNEL_Descriptor;
  61 extern const WIN16_DESCRIPTOR KEYBOARD_Descriptor;
  62 extern const WIN16_DESCRIPTOR LZEXPAND_Descriptor;
  63 extern const WIN16_DESCRIPTOR MMSYSTEM_Descriptor;
  64 extern const WIN16_DESCRIPTOR MOUSE_Descriptor;
  65 extern const WIN16_DESCRIPTOR MSACM_Descriptor;
  66 extern const WIN16_DESCRIPTOR MSVIDEO_Descriptor;
  67 extern const WIN16_DESCRIPTOR OLE2CONV_Descriptor;
  68 extern const WIN16_DESCRIPTOR OLE2DISP_Descriptor;
  69 extern const WIN16_DESCRIPTOR OLE2NLS_Descriptor;
  70 extern const WIN16_DESCRIPTOR OLE2PROX_Descriptor;
  71 extern const WIN16_DESCRIPTOR OLE2THK_Descriptor;
  72 extern const WIN16_DESCRIPTOR OLE2_Descriptor;
  73 extern const WIN16_DESCRIPTOR OLECLI_Descriptor;
  74 extern const WIN16_DESCRIPTOR OLESVR_Descriptor;
  75 extern const WIN16_DESCRIPTOR RASAPI16_Descriptor;
  76 extern const WIN16_DESCRIPTOR SHELL_Descriptor;
  77 extern const WIN16_DESCRIPTOR SOUND_Descriptor;
  78 extern const WIN16_DESCRIPTOR STORAGE_Descriptor;
  79 extern const WIN16_DESCRIPTOR STRESS_Descriptor;
  80 extern const WIN16_DESCRIPTOR SYSTEM_Descriptor;
  81 extern const WIN16_DESCRIPTOR TOOLHELP_Descriptor;
  82 extern const WIN16_DESCRIPTOR TYPELIB_Descriptor;
  83 extern const WIN16_DESCRIPTOR USER_Descriptor;
  84 extern const WIN16_DESCRIPTOR VER_Descriptor;
  85 extern const WIN16_DESCRIPTOR W32SYS_Descriptor;
  86 extern const WIN16_DESCRIPTOR WIN32S16_Descriptor;
  87 extern const WIN16_DESCRIPTOR WIN87EM_Descriptor;
  88 extern const WIN16_DESCRIPTOR WINASPI_Descriptor;
  89 extern const WIN16_DESCRIPTOR WINDEBUG_Descriptor;
  90 extern const WIN16_DESCRIPTOR WINEPS_Descriptor;
  91 extern const WIN16_DESCRIPTOR WING_Descriptor;
  92 extern const WIN16_DESCRIPTOR WINSOCK_Descriptor;
  93 extern const WIN16_DESCRIPTOR WPROCS_Descriptor;
  94
  95 /* Table of all built-in DLLs */
  96
  97 static BUILTIN16_DLL BuiltinDLLs[] =
  98 {
  99     { &KERNEL_Descriptor,   0 },
 100     { &USER_Descriptor,     0 },
 101     { &GDI_Descriptor,      0 },
 102     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
 103     { &DISPLAY_Descriptor,  DLL_FLAG_ALWAYS_USED },
 104     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 105     { &WINDEBUG_Descriptor, DLL_FLAG_NOT_USED },
 106     { &AVIFILE_Descriptor,  DLL_FLAG_NOT_USED },
 107     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 108     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 109     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 110     { &DISPDIB_Descriptor,  0 },
 111     { &KEYBOARD_Descriptor, 0 },
 112     { &COMM_Descriptor,     0 },
 113     { &LZEXPAND_Descriptor, 0 },
 114     { &MMSYSTEM_Descriptor, 0 },
 115     { &MOUSE_Descriptor,    0 },
 116     { &MSACM_Descriptor,    0 },
 117     { &MSVIDEO_Descriptor,  0 },
 118     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 119     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 120     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 121     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 122     { &OLE2THK_Descriptor,  DLL_FLAG_NOT_USED },
 123     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 124     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 125     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 126     { &RASAPI16_Descriptor, 0 },
 127     { &SHELL_Descriptor,    0 },
 128     { &SOUND_Descriptor,    0 },
 129     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 130     { &STRESS_Descriptor,   0 },
 131     { &TOOLHELP_Descriptor, 0 },
 132     { &TYPELIB_Descriptor,  DLL_FLAG_NOT_USED },
 133     { &VER_Descriptor,      0 },
 134     { &W32SYS_Descriptor,   DLL_FLAG_NOT_USED },
 135     { &WIN32S16_Descriptor, DLL_FLAG_NOT_USED },
 136     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 137     { &WINASPI_Descriptor,  0 },
 138     { &WINEPS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 139     { &WING_Descriptor,     0 },
 140     { &WINSOCK_Descriptor,  0 },
 141     /* Last entry */
 142     { NULL, 0 }
 143 };
 144
 145   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 146 #define FIRST_INTERRUPT_ORDINAL 100
 147
 148
 149 /***********************************************************************
 150  *           BUILTIN_DoLoadModule16
 151  *
 152  * Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
 153  * and BUILTIN_Init.
 154  */
 155 static HMODULE16 BUILTIN_DoLoadModule16( const WIN16_DESCRIPTOR *descr )
 156 {
 157     NE_MODULE *pModule;
 158     int minsize;
 159     SEGTABLEENTRY *pSegTable;
 160
 161     HMODULE16 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
 162                                             descr->module_size, 0,
 163                                             FALSE, FALSE, FALSE, NULL );
 164     if (!hModule) return 0;
 165     FarSetOwner16( hModule, hModule );
 166
 167     TRACE(module, "Built-in %s: hmodule=%04x\n",
 168                     descr->name, hModule );
 169     pModule = (NE_MODULE *)GlobalLock16( hModule );
 170     pModule->self = hModule;
 171
 172     /* Allocate the code segment */
 173
 174     pSegTable = NE_SEG_TABLE( pModule );
 175     pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
 176                                               pSegTable->minsize, hModule,
 177                                               TRUE, TRUE, FALSE, NULL );
 178     if (!pSegTable->hSeg) return 0;
 179     pSegTable++;
 180
 181     /* Allocate the data segment */
 182
 183     minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 184     minsize += pModule->heap_size;
 185     if (minsize > 0x10000) minsize = 0x10000;
 186     pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
 187                                         hModule, FALSE, FALSE, FALSE );
 188     if (!pSegTable->hSeg) return 0;
 189     if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
 190                                     descr->data_start, pSegTable->minsize);
 191     if (pModule->heap_size)
 192         LocalInit16( GlobalHandleToSel16(pSegTable->hSeg),
 193                 pSegTable->minsize, minsize );
 194
 195     NE_RegisterModule( pModule );
 196     return hModule;
 197 }
 198
 199
 200 /***********************************************************************
 201  *           BUILTIN_Init
 202  *
 203  * Load all built-in modules marked as 'always used'.
 204  */
 205 BOOL BUILTIN_Init(void)
 206 {
 207     BUILTIN16_DLL *dll;
 208     WORD vector;
 209     HMODULE16 hModule;
 210
 211     fnBUILTIN_LoadModule = BUILTIN_LoadModule;
 212
 213     for (dll = BuiltinDLLs; dll->descr; dll++)
 214     {
 215         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 216             if (!BUILTIN_DoLoadModule16( dll->descr )) return FALSE;
 217     }
 218
 219     /* Set interrupt vectors from entry points in WPROCS.DLL */
 220
 221     hModule = GetModuleHandle16( "WPROCS" );
 222     for (vector = 0; vector < 256; vector++)
 223     {
 224         FARPROC16 proc = NE_GetEntryPoint( hModule,
 225                                            FIRST_INTERRUPT_ORDINAL + vector );
 226         assert(proc);
 227         INT_SetPMHandler( vector, proc );
 228     }
 229
 230     SNOOP16_Init();
 231
 232     return TRUE;
 233 }
 234
 235
 236 /***********************************************************************
 237  *           BUILTIN_LoadModule
 238  *
 239  * Load a built-in module. If the 'force' parameter is FALSE, we only
 240  * load the module if it has not been disabled via the -dll option.
 241  */
 242 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL force )
 243 {
 244     BUILTIN16_DLL *table;
 245     char dllname[16], *p;
 246
 247     /* Fix the name in case we have a full path and extension */
 248
 249     if ((p = strrchr( name, '\\' ))) name = p + 1;
 250     lstrcpynA( dllname, name, sizeof(dllname) );
 251     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 252
 253     for (table = BuiltinDLLs; table->descr; table++)
 254         if (!lstrcmpiA( table->descr->name, dllname )) break;
 255     if (!table->descr) return (HMODULE16)2;
 256     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return (HMODULE16)2;
 257
 258     return BUILTIN_DoLoadModule16( table->descr );
 259 }
 260
 261
 262 /***********************************************************************
 263  *           BUILTIN_GetEntryPoint16
 264  *
 265  * Return the ordinal and name corresponding to a CS:IP address.
 266  * This is used only by relay debugging.
 267  */
 268 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 269 {
 270     static char buffer[80];
 271     WORD i, max_offset;
 272     register BYTE *p;
 273     NE_MODULE *pModule;
 274     ET_BUNDLE *bundle;
 275     ET_ENTRY *entry;
 276
 277     if (!(pModule = NE_GetPtr( FarGetOwner16( GlobalHandle16(cs) ))))
 278         return NULL;
 279
 280     max_offset = 0;
 281     *pOrd = 0;
 282     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
 283     do
 284     {
 285         entry = (ET_ENTRY *)((BYTE *)bundle+6);
 286         for (i = bundle->first + 1; i <= bundle->last; i++)
 287         {
 288             if ((entry->offs <= ip)
 289             && (entry->segnum == 1) /* code segment ? */
 290             && (entry->offs >= max_offset))
 291             {
 292                 max_offset = entry->offs;
 293                 *pOrd = i;
 294             }
 295             entry++;
 296         }
 297     } while ( (bundle->next)
 298            && (bundle = (ET_BUNDLE *)((BYTE *)pModule+bundle->next)));
 299
 300     /* Search for the name in the resident names table */
 301     /* (built-in modules have no non-resident table)   */
 302
 303     p = (BYTE *)pModule + pModule->name_table;
 304     while (*p)
 305     {
 306         p += *p + 1 + sizeof(WORD);
 307         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 308     }
 309
 310     sprintf( buffer, "%.*s.%d: %.*s",
 311              *((BYTE *)pModule + pModule->name_table),
 312              (char *)pModule + pModule->name_table + 1,
 313              *pOrd, *p, (char *)(p + 1) );
 314     return buffer;
 315 }
 316
 317
 318 /**********************************************************************
 319  *          BUILTIN_DefaultIntHandler
 320  *
 321  * Default interrupt handler.
 322  */
 323 void BUILTIN_DefaultIntHandler( CONTEXT *context )
 324 {
 325     WORD ordinal;
 326     STACK16FRAME *frame = CURRENT_STACK16;
 327     BUILTIN_GetEntryPoint16( frame->entry_cs, frame->entry_ip, &ordinal );
 328     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 329 }
 330