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 "debugtools.h"
  25 #include "toolhelp.h"
  26
  27 DEFAULT_DEBUG_CHANNEL(module)
  28
  29 /* Built-in modules descriptors */
  30 /* Don't change these structures! (see tools/build.c) */
  31
  32 typedef struct
  33 {
  34     const char *name;              /* DLL name */
  35     void       *module_start;      /* 32-bit address of the module data */
  36     int         module_size;       /* Size of the module data */
  37     const BYTE *code_start;        /* 32-bit address of DLL code */
  38     const BYTE *data_start;        /* 32-bit address of DLL data */
  39 } WIN16_DESCRIPTOR;
  40
  41 typedef struct
  42 {
  43     const WIN16_DESCRIPTOR *descr;     /* DLL descriptor */
  44     int                     flags;     /* flags (see below) */
  45 } BUILTIN16_DLL;
  46
  47 /* DLL flags */
  48 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  49 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  50
  51 /* 16-bit DLLs */
  52
  53 extern const WIN16_DESCRIPTOR AVIFILE_Descriptor;
  54 extern const WIN16_DESCRIPTOR COMM_Descriptor;
  55 extern const WIN16_DESCRIPTOR COMMDLG_Descriptor;
  56 extern const WIN16_DESCRIPTOR COMPOBJ_Descriptor;
  57 extern const WIN16_DESCRIPTOR DDEML_Descriptor;
  58 extern const WIN16_DESCRIPTOR DISPDIB_Descriptor;
  59 extern const WIN16_DESCRIPTOR DISPLAY_Descriptor;
  60 extern const WIN16_DESCRIPTOR GDI_Descriptor;
  61 extern const WIN16_DESCRIPTOR KERNEL_Descriptor;
  62 extern const WIN16_DESCRIPTOR KEYBOARD_Descriptor;
  63 extern const WIN16_DESCRIPTOR LZEXPAND_Descriptor;
  64 extern const WIN16_DESCRIPTOR MMSYSTEM_Descriptor;
  65 extern const WIN16_DESCRIPTOR MOUSE_Descriptor;
  66 extern const WIN16_DESCRIPTOR MSACM_Descriptor;
  67 extern const WIN16_DESCRIPTOR MSVIDEO_Descriptor;
  68 extern const WIN16_DESCRIPTOR OLE2CONV_Descriptor;
  69 extern const WIN16_DESCRIPTOR OLE2DISP_Descriptor;
  70 extern const WIN16_DESCRIPTOR OLE2NLS_Descriptor;
  71 extern const WIN16_DESCRIPTOR OLE2PROX_Descriptor;
  72 extern const WIN16_DESCRIPTOR OLE2THK_Descriptor;
  73 extern const WIN16_DESCRIPTOR OLE2_Descriptor;
  74 extern const WIN16_DESCRIPTOR OLECLI_Descriptor;
  75 extern const WIN16_DESCRIPTOR OLESVR_Descriptor;
  76 extern const WIN16_DESCRIPTOR RASAPI16_Descriptor;
  77 extern const WIN16_DESCRIPTOR SHELL_Descriptor;
  78 extern const WIN16_DESCRIPTOR SOUND_Descriptor;
  79 extern const WIN16_DESCRIPTOR STORAGE_Descriptor;
  80 extern const WIN16_DESCRIPTOR STRESS_Descriptor;
  81 extern const WIN16_DESCRIPTOR SYSTEM_Descriptor;
  82 extern const WIN16_DESCRIPTOR TOOLHELP_Descriptor;
  83 extern const WIN16_DESCRIPTOR TYPELIB_Descriptor;
  84 extern const WIN16_DESCRIPTOR USER_Descriptor;
  85 extern const WIN16_DESCRIPTOR VER_Descriptor;
  86 extern const WIN16_DESCRIPTOR W32SYS_Descriptor;
  87 extern const WIN16_DESCRIPTOR WIN32S16_Descriptor;
  88 extern const WIN16_DESCRIPTOR WIN87EM_Descriptor;
  89 extern const WIN16_DESCRIPTOR WINASPI_Descriptor;
  90 extern const WIN16_DESCRIPTOR WINDEBUG_Descriptor;
  91 extern const WIN16_DESCRIPTOR WINEPS_Descriptor;
  92 extern const WIN16_DESCRIPTOR WING_Descriptor;
  93 extern const WIN16_DESCRIPTOR WINSOCK_Descriptor;
  94 extern const WIN16_DESCRIPTOR WPROCS_Descriptor;
  95
  96 /* Table of all built-in DLLs */
  97
  98 static BUILTIN16_DLL BuiltinDLLs[] =
  99 {
 100     { &KERNEL_Descriptor,   0 },
 101     { &USER_Descriptor,     0 },
 102     { &GDI_Descriptor,      0 },
 103     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
 104     { &DISPLAY_Descriptor,  DLL_FLAG_ALWAYS_USED },
 105     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 106     { &WINDEBUG_Descriptor, DLL_FLAG_NOT_USED },
 107     { &AVIFILE_Descriptor,  DLL_FLAG_NOT_USED },
 108     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 109     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 110     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 111     { &DISPDIB_Descriptor,  0 },
 112     { &KEYBOARD_Descriptor, 0 },
 113     { &COMM_Descriptor,     0 },
 114     { &LZEXPAND_Descriptor, 0 },
 115     { &MMSYSTEM_Descriptor, 0 },
 116     { &MOUSE_Descriptor,    0 },
 117     { &MSACM_Descriptor,    0 },
 118     { &MSVIDEO_Descriptor,  0 },
 119     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 120     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 121     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 122     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 123     { &OLE2THK_Descriptor,  DLL_FLAG_NOT_USED },
 124     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 125     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 126     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 127     { &RASAPI16_Descriptor, 0 },
 128     { &SHELL_Descriptor,    0 },
 129     { &SOUND_Descriptor,    0 },
 130     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 131     { &STRESS_Descriptor,   0 },
 132     { &TOOLHELP_Descriptor, 0 },
 133     { &TYPELIB_Descriptor,  DLL_FLAG_NOT_USED },
 134     { &VER_Descriptor,      0 },
 135     { &W32SYS_Descriptor,   DLL_FLAG_NOT_USED },
 136     { &WIN32S16_Descriptor, DLL_FLAG_NOT_USED },
 137     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 138     { &WINASPI_Descriptor,  0 },
 139     { &WINEPS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 140     { &WING_Descriptor,     0 },
 141     { &WINSOCK_Descriptor,  0 },
 142     /* Last entry */
 143     { NULL, 0 }
 144 };
 145
 146   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 147 #define FIRST_INTERRUPT_ORDINAL 100
 148
 149
 150 /***********************************************************************
 151  *           BUILTIN_DoLoadModule16
 152  *
 153  * Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
 154  * and BUILTIN_Init.
 155  */
 156 static HMODULE16 BUILTIN_DoLoadModule16( const WIN16_DESCRIPTOR *descr )
 157 {
 158     NE_MODULE *pModule;
 159     int minsize;
 160     SEGTABLEENTRY *pSegTable;
 161
 162     HMODULE16 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
 163                                             descr->module_size, 0,
 164                                             FALSE, FALSE, FALSE, NULL );
 165     if (!hModule) return 0;
 166     FarSetOwner16( hModule, hModule );
 167
 168     TRACE("Built-in %s: hmodule=%04x\n",
 169                     descr->name, hModule );
 170     pModule = (NE_MODULE *)GlobalLock16( hModule );
 171     pModule->self = hModule;
 172
 173     /* Allocate the code segment */
 174
 175     pSegTable = NE_SEG_TABLE( pModule );
 176     pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
 177                                               pSegTable->minsize, hModule,
 178                                               TRUE, TRUE, FALSE, NULL );
 179     if (!pSegTable->hSeg) return 0;
 180     pSegTable++;
 181
 182     /* Allocate the data segment */
 183
 184     minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 185     minsize += pModule->heap_size;
 186     if (minsize > 0x10000) minsize = 0x10000;
 187     pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
 188                                         hModule, FALSE, FALSE, FALSE );
 189     if (!pSegTable->hSeg) return 0;
 190     if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
 191                                     descr->data_start, pSegTable->minsize);
 192     if (pModule->heap_size)
 193         LocalInit16( GlobalHandleToSel16(pSegTable->hSeg),
 194                 pSegTable->minsize, minsize );
 195
 196     NE_RegisterModule( pModule );
 197     return hModule;
 198 }
 199
 200
 201 /***********************************************************************
 202  *           BUILTIN_Init
 203  *
 204  * Load all built-in modules marked as 'always used'.
 205  */
 206 BOOL BUILTIN_Init(void)
 207 {
 208     BUILTIN16_DLL *dll;
 209     WORD vector;
 210     HMODULE16 hModule;
 211
 212     fnBUILTIN_LoadModule = BUILTIN_LoadModule;
 213
 214     for (dll = BuiltinDLLs; dll->descr; dll++)
 215     {
 216         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 217             if (!BUILTIN_DoLoadModule16( dll->descr )) return FALSE;
 218     }
 219
 220     /* Set interrupt vectors from entry points in WPROCS.DLL */
 221
 222     hModule = GetModuleHandle16( "WPROCS" );
 223     for (vector = 0; vector < 256; vector++)
 224     {
 225         FARPROC16 proc = NE_GetEntryPoint( hModule,
 226                                            FIRST_INTERRUPT_ORDINAL + vector );
 227         assert(proc);
 228         INT_SetPMHandler( vector, proc );
 229     }
 230
 231     SNOOP16_Init();
 232
 233     return TRUE;
 234 }
 235
 236
 237 /***********************************************************************
 238  *           BUILTIN_LoadModule
 239  *
 240  * Load a built-in module. If the 'force' parameter is FALSE, we only
 241  * load the module if it has not been disabled via the -dll option.
 242  */
 243 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL force )
 244 {
 245     BUILTIN16_DLL *table;
 246     char dllname[16], *p;
 247
 248     /* Fix the name in case we have a full path and extension */
 249
 250     if ((p = strrchr( name, '\\' ))) name = p + 1;
 251     lstrcpynA( dllname, name, sizeof(dllname) );
 252     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 253
 254     for (table = BuiltinDLLs; table->descr; table++)
 255         if (!lstrcmpiA( table->descr->name, dllname )) break;
 256     if (!table->descr) return (HMODULE16)2;
 257     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return (HMODULE16)2;
 258
 259     return BUILTIN_DoLoadModule16( table->descr );
 260 }
 261
 262
 263 /***********************************************************************
 264  *           BUILTIN_GetEntryPoint16
 265  *
 266  * Return the ordinal and name corresponding to a CS:IP address.
 267  * This is used only by relay debugging.
 268  */
 269 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 270 {
 271     static char buffer[80];
 272     WORD i, max_offset;
 273     register BYTE *p;
 274     NE_MODULE *pModule;
 275     ET_BUNDLE *bundle;
 276     ET_ENTRY *entry;
 277
 278     if (!(pModule = NE_GetPtr( FarGetOwner16( GlobalHandle16(cs) ))))
 279         return NULL;
 280
 281     max_offset = 0;
 282     *pOrd = 0;
 283     bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
 284     do
 285     {
 286         entry = (ET_ENTRY *)((BYTE *)bundle+6);
 287         for (i = bundle->first + 1; i <= bundle->last; i++)
 288         {
 289             if ((entry->offs <= ip)
 290             && (entry->segnum == 1) /* code segment ? */
 291             && (entry->offs >= max_offset))
 292             {
 293                 max_offset = entry->offs;
 294                 *pOrd = i;
 295             }
 296             entry++;
 297         }
 298     } while ( (bundle->next)
 299            && (bundle = (ET_BUNDLE *)((BYTE *)pModule+bundle->next)));
 300
 301     /* Search for the name in the resident names table */
 302     /* (built-in modules have no non-resident table)   */
 303
 304     p = (BYTE *)pModule + pModule->name_table;
 305     while (*p)
 306     {
 307         p += *p + 1 + sizeof(WORD);
 308         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 309     }
 310
 311     sprintf( buffer, "%.*s.%d: %.*s",
 312              *((BYTE *)pModule + pModule->name_table),
 313              (char *)pModule + pModule->name_table + 1,
 314              *pOrd, *p, (char *)(p + 1) );
 315     return buffer;
 316 }
 317
 318
 319 /**********************************************************************
 320  *          BUILTIN_DefaultIntHandler
 321  *
 322  * Default interrupt handler.
 323  */
 324 void BUILTIN_DefaultIntHandler( CONTEXT86 *context )
 325 {
 326     WORD ordinal;
 327     STACK16FRAME *frame = CURRENT_STACK16;
 328     BUILTIN_GetEntryPoint16( frame->entry_cs, frame->entry_ip, &ordinal );
 329     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 330 }
 331