2 * Win32 builtin functions
4 * Copyright 1997 Alexandre Julliard
14 #include "builtin32.h"
22 #include "debugtools.h"
24 DEFAULT_DEBUG_CHANNEL(module
);
25 DECLARE_DEBUG_CHANNEL(relay
);
29 BYTE call
; /* 0xe8 call callfrom32 (relative) */
30 DWORD callfrom32 WINE_PACKED
; /* RELAY_CallFrom32 relative addr */
31 BYTE ret
; /* 0xc2 ret $n or 0xc3 ret */
32 WORD args
; /* nb of args to remove from the stack */
38 const DWORD nresources
;
39 const DWORD restabsize
;
40 const IMAGE_RESOURCE_DATA_ENTRY
*entries
;
45 static const BUILTIN32_DESCRIPTOR
*builtin_dlls
[MAX_DLLS
];
46 static HMODULE dll_modules
[MAX_DLLS
];
49 extern void RELAY_CallFrom32();
50 extern void RELAY_CallFrom32Regs();
53 /***********************************************************************
54 * BUILTIN32_WarnSecondInstance
56 * Emit a warning when we are creating a second instance for a DLL
57 * that is known to not support this.
59 static void BUILTIN32_WarnSecondInstance( const char *name
)
61 static const char * const warning_list
[] =
62 { "comctl32", "comdlg32", "crtdll", "imagehlp", "msacm32", "shell32", NULL
};
64 const char * const *ptr
= warning_list
;
68 if (!strcasecmp( *ptr
, name
))
70 ERR( "Attempt to instantiate built-in dll '%s' twice "
71 "in the same address space. Expect trouble!\n", name
);
78 /***********************************************************************
79 * BUILTIN32_DoLoadImage
81 * Load a built-in Win32 module. Helper function for BUILTIN32_LoadImage.
83 static HMODULE
BUILTIN32_DoLoadImage( const BUILTIN32_DESCRIPTOR
*descr
)
86 IMAGE_DATA_DIRECTORY
*dir
;
87 IMAGE_DOS_HEADER
*dos
;
89 IMAGE_SECTION_HEADER
*sec
;
90 IMAGE_EXPORT_DIRECTORY
*exp
;
91 IMAGE_IMPORT_DESCRIPTOR
*imp
;
92 const BUILTIN32_RESOURCE
*rsrc
= descr
->rsrc
;
96 DEBUG_ENTRY_POINT
*debug
;
97 INT i
, size
, nb_sections
;
100 /* Allocate the module */
102 nb_sections
= 2; /* exports + code */
103 if (descr
->nb_imports
) nb_sections
++;
104 size
= (sizeof(IMAGE_DOS_HEADER
)
105 + sizeof(IMAGE_NT_HEADERS
)
106 + nb_sections
* sizeof(IMAGE_SECTION_HEADER
)
107 + (descr
->nb_imports
+1) * sizeof(IMAGE_IMPORT_DESCRIPTOR
)
108 + sizeof(IMAGE_EXPORT_DIRECTORY
)
109 + descr
->nb_funcs
* sizeof(LPVOID
)
110 + descr
->nb_names
* sizeof(LPSTR
)
113 if (WARN_ON(relay
) || TRACE_ON(relay
))
114 size
+= descr
->nb_funcs
* sizeof(DEBUG_ENTRY_POINT
);
116 if (rsrc
) size
+= rsrc
->restabsize
;
117 addr
= VirtualAlloc( NULL
, size
, MEM_COMMIT
, PAGE_EXECUTE_READWRITE
);
119 dos
= (IMAGE_DOS_HEADER
*)addr
;
120 nt
= (IMAGE_NT_HEADERS
*)(dos
+ 1);
121 sec
= (IMAGE_SECTION_HEADER
*)(nt
+ 1);
122 imp
= (IMAGE_IMPORT_DESCRIPTOR
*)(sec
+ nb_sections
);
123 exp
= (IMAGE_EXPORT_DIRECTORY
*)(imp
+ descr
->nb_imports
+ 1);
124 funcs
= (LPVOID
*)(exp
+ 1);
125 names
= (LPSTR
*)(funcs
+ descr
->nb_funcs
);
126 pfwd
= (LPSTR
)(names
+ descr
->nb_names
);
127 rtab
= pfwd
+ descr
->fwd_size
;
128 debug
= (DEBUG_ENTRY_POINT
*)(rtab
+ (rsrc
? rsrc
->restabsize
: 0));
130 /* Build the DOS and NT headers */
132 dos
->e_magic
= IMAGE_DOS_SIGNATURE
;
133 dos
->e_lfanew
= sizeof(*dos
);
135 nt
->Signature
= IMAGE_NT_SIGNATURE
;
136 nt
->FileHeader
.Machine
= IMAGE_FILE_MACHINE_I386
;
137 nt
->FileHeader
.NumberOfSections
= nb_sections
;
138 nt
->FileHeader
.SizeOfOptionalHeader
= sizeof(nt
->OptionalHeader
);
139 nt
->FileHeader
.Characteristics
= descr
->characteristics
;
141 nt
->OptionalHeader
.Magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
142 nt
->OptionalHeader
.SizeOfCode
= 0x1000;
143 nt
->OptionalHeader
.SizeOfInitializedData
= 0;
144 nt
->OptionalHeader
.SizeOfUninitializedData
= 0;
145 nt
->OptionalHeader
.ImageBase
= (DWORD
)addr
;
146 nt
->OptionalHeader
.SectionAlignment
= 0x1000;
147 nt
->OptionalHeader
.FileAlignment
= 0x1000;
148 nt
->OptionalHeader
.MajorOperatingSystemVersion
= 1;
149 nt
->OptionalHeader
.MinorOperatingSystemVersion
= 0;
150 nt
->OptionalHeader
.MajorSubsystemVersion
= 4;
151 nt
->OptionalHeader
.MinorSubsystemVersion
= 0;
152 nt
->OptionalHeader
.SizeOfImage
= size
;
153 nt
->OptionalHeader
.SizeOfHeaders
= (BYTE
*)exp
- addr
;
154 nt
->OptionalHeader
.NumberOfRvaAndSizes
= IMAGE_NUMBEROF_DIRECTORY_ENTRIES
;
155 if (descr
->dllentrypoint
)
156 nt
->OptionalHeader
.AddressOfEntryPoint
= (DWORD
)descr
->dllentrypoint
- (DWORD
)addr
;
158 /* Build the code section */
160 strcpy( sec
->Name
, ".code" );
161 sec
->SizeOfRawData
= 0;
163 if (WARN_ON(relay
) || TRACE_ON(relay
))
164 sec
->SizeOfRawData
+= descr
->nb_funcs
* sizeof(DEBUG_ENTRY_POINT
);
166 sec
->Misc
.VirtualSize
= sec
->SizeOfRawData
;
167 sec
->VirtualAddress
= (BYTE
*)debug
- addr
;
168 sec
->PointerToRawData
= (BYTE
*)debug
- addr
;
169 sec
->Characteristics
= (IMAGE_SCN_CNT_INITIALIZED_DATA
|
170 IMAGE_SCN_MEM_EXECUTE
| IMAGE_SCN_MEM_READ
);
173 /* Build the import directory */
175 if (descr
->nb_imports
)
177 dir
= &nt
->OptionalHeader
.DataDirectory
[IMAGE_FILE_IMPORT_DIRECTORY
];
178 dir
->VirtualAddress
= (BYTE
*)imp
- addr
;
179 dir
->Size
= sizeof(*imp
) * (descr
->nb_imports
+ 1);
181 /* Build the imports section */
182 strcpy( sec
->Name
, ".idata" );
183 sec
->Misc
.VirtualSize
= dir
->Size
;
184 sec
->VirtualAddress
= (BYTE
*)imp
- addr
;
185 sec
->SizeOfRawData
= dir
->Size
;
186 sec
->PointerToRawData
= (BYTE
*)imp
- addr
;
187 sec
->Characteristics
= (IMAGE_SCN_CNT_INITIALIZED_DATA
|
188 IMAGE_SCN_MEM_EXECUTE
| IMAGE_SCN_MEM_READ
|
189 IMAGE_SCN_MEM_WRITE
);
192 /* Build the imports */
193 for (i
= 0; i
< descr
->nb_imports
; i
++)
195 imp
[i
].u
.Characteristics
= 0;
196 imp
[i
].ForwarderChain
= -1;
197 imp
[i
].Name
= (BYTE
*)descr
->imports
[i
] - addr
;
198 /* hack: make first thunk point to some zero value */
199 imp
[i
].FirstThunk
= (PIMAGE_THUNK_DATA
)((BYTE
*)&imp
[i
].u
.Characteristics
- addr
);
203 /* Build the export directory */
205 dir
= &nt
->OptionalHeader
.DataDirectory
[IMAGE_FILE_EXPORT_DIRECTORY
];
206 dir
->VirtualAddress
= (BYTE
*)exp
- addr
;
207 dir
->Size
= sizeof(*exp
)
208 + descr
->nb_funcs
* sizeof(LPVOID
)
209 + descr
->nb_names
* sizeof(LPSTR
)
212 /* Build the exports section */
214 strcpy( sec
->Name
, ".edata" );
215 sec
->Misc
.VirtualSize
= dir
->Size
;
216 sec
->VirtualAddress
= (BYTE
*)exp
- addr
;
217 sec
->SizeOfRawData
= dir
->Size
;
218 sec
->PointerToRawData
= (BYTE
*)exp
- addr
;
219 sec
->Characteristics
= (IMAGE_SCN_CNT_INITIALIZED_DATA
|
220 IMAGE_SCN_MEM_EXECUTE
| IMAGE_SCN_MEM_READ
|
221 IMAGE_SCN_MEM_WRITE
);
224 /* Build the resource directory */
228 IMAGE_RESOURCE_DATA_ENTRY
*rdep
;
231 * The resource directory has to be copied because it contains
232 * RVAs. These would be invalid if the dll is instantiated twice.
234 memcpy(rtab
, rsrc
->restab
, rsrc
->restabsize
);
236 dir
= &nt
->OptionalHeader
.DataDirectory
[IMAGE_FILE_RESOURCE_DIRECTORY
];
237 dir
->VirtualAddress
= (BYTE
*)rtab
- addr
;
238 dir
->Size
= rsrc
->restabsize
;
239 rdep
= (IMAGE_RESOURCE_DATA_ENTRY
*)((DWORD
)rtab
+ (DWORD
)rsrc
->entries
- (DWORD
)rsrc
->restab
);
240 for(i
= 0; i
< rsrc
->nresources
; i
++)
242 rdep
[i
].OffsetToData
+= (DWORD
)rsrc
->restab
- (DWORD
)addr
;
246 /* Build the exports section data */
248 exp
->Name
= ((BYTE
*)descr
->name
) - addr
; /*??*/
249 exp
->Base
= descr
->base
;
250 exp
->NumberOfFunctions
= descr
->nb_funcs
;
251 exp
->NumberOfNames
= descr
->nb_names
;
252 exp
->AddressOfFunctions
= (LPDWORD
*)((BYTE
*)funcs
- addr
);
253 exp
->AddressOfNames
= (LPDWORD
*)((BYTE
*)names
- addr
);
254 exp
->AddressOfNameOrdinals
= (LPWORD
*)((BYTE
*)descr
->ordinals
- addr
);
256 /* Build the funcs table */
258 for (i
= 0; i
< descr
->nb_funcs
; i
++, funcs
++, debug
++)
260 BYTE args
= descr
->args
[i
];
263 if (!descr
->functions
[i
]) continue;
265 if (args
== 0xfd) /* forward func */
267 strcpy( pfwd
, (LPSTR
)descr
->functions
[i
] );
268 *funcs
= (LPVOID
)((BYTE
*)pfwd
- addr
);
269 pfwd
+= strlen(pfwd
) + 1;
271 else *funcs
= (LPVOID
)((BYTE
*)descr
->functions
[i
] - addr
);
274 if (!(WARN_ON(relay
) || TRACE_ON(relay
))) continue;
275 for (j
=0;j
<descr
->nb_names
;j
++)
276 if (descr
->ordinals
[j
] == i
)
278 if (j
<descr
->nb_names
) {
279 if (descr
->names
[j
]) {
281 sprintf(buffer
,"%s.%d: %s",descr
->name
,i
,descr
->names
[j
]);
282 if (!RELAY_ShowDebugmsgRelay(buffer
))
288 case 0xfd: /* forward */
289 case 0xff: /* stub or extern */
291 default: /* normal function (stdcall or cdecl or register) */
292 if (TRACE_ON(relay
)) {
293 debug
->call
= 0xe8; /* lcall relative */
294 if (args
& 0x40) /* register func */
295 debug
->callfrom32
= (DWORD
)RELAY_CallFrom32Regs
-
298 debug
->callfrom32
= (DWORD
)RELAY_CallFrom32
-
301 debug
->call
= 0xe9; /* ljmp relative */
302 debug
->callfrom32
= (DWORD
)descr
->functions
[i
] -
305 debug
->ret
= (args
& 0x80) ? 0xc3 : 0xc2; /*ret/ret $n*/
306 debug
->args
= (args
& 0x3f) * sizeof(int);
307 *funcs
= (LPVOID
)((BYTE
*)debug
- addr
);
310 #endif /* __i386__ */
313 /* Build the names table */
315 for (i
= 0; i
< exp
->NumberOfNames
; i
++, names
++)
317 *names
= (LPSTR
)((BYTE
*)descr
->names
[i
] - addr
);
319 return (HMODULE
)addr
;
322 /***********************************************************************
323 * BUILTIN32_LoadLibraryExA
325 * Partly copied from the original PE_ version.
328 WINE_MODREF
*BUILTIN32_LoadLibraryExA(LPCSTR path
, DWORD flags
)
330 struct load_dll_request
*req
= get_req_buffer();
334 char dllname
[MAX_PATH
], *p
;
337 /* Fix the name in case we have a full path and extension */
338 if ((p
= strrchr( path
, '\\' ))) path
= p
+ 1;
339 lstrcpynA( dllname
, path
, sizeof(dllname
) );
341 p
= strrchr( dllname
, '.' );
342 if (!p
) strcat( dllname
, ".dll" );
344 /* Search built-in descriptor */
345 for (i
= 0; i
< nb_dlls
; i
++)
346 if (!lstrcmpiA( builtin_dlls
[i
]->filename
, dllname
)) break;
350 SetLastError( ERROR_FILE_NOT_FOUND
);
354 /* Load built-in module */
357 if (!(dll_modules
[i
] = BUILTIN32_DoLoadImage( builtin_dlls
[i
] ))) return NULL
;
359 else BUILTIN32_WarnSecondInstance( builtin_dlls
[i
]->name
);
361 /* Create 16-bit dummy module */
362 if ((hModule16
= MODULE_CreateDummyModule( dllname
, 0 )) < 32)
364 SetLastError( (DWORD
)hModule16
);
365 return NULL
; /* FIXME: Should unload the builtin module */
368 pModule
= (NE_MODULE
*)GlobalLock16( hModule16
);
369 pModule
->flags
= NE_FFLAGS_LIBMODULE
| NE_FFLAGS_SINGLEDATA
| NE_FFLAGS_WIN32
| NE_FFLAGS_BUILTIN
;
370 pModule
->module32
= dll_modules
[i
];
372 /* Create 32-bit MODREF */
373 if ( !(wm
= PE_CreateModule( pModule
->module32
, dllname
, flags
, TRUE
)) )
375 ERR( "can't load %s\n", path
);
376 FreeLibrary16( hModule16
); /* FIXME: Should unload the builtin module */
377 SetLastError( ERROR_OUTOFMEMORY
);
381 if (wm
->binfmt
.pe
.pe_export
)
382 SNOOP_RegisterDLL(wm
->module
,wm
->modname
,wm
->binfmt
.pe
.pe_export
->NumberOfFunctions
);
385 req
->base
= (void *)pModule
->module32
;
388 req
->name
= &wm
->modname
;
389 server_call_noerr( REQ_LOAD_DLL
);
393 /***********************************************************************
394 * BUILTIN32_LoadExeModule
396 HMODULE16
BUILTIN32_LoadExeModule( void )
402 /* Search built-in EXE descriptor */
403 for ( i
= 0; i
< nb_dlls
; i
++ )
404 if ( !(builtin_dlls
[i
]->characteristics
& IMAGE_FILE_DLL
) )
408 MESSAGE( "More than one built-in EXE module loaded!\n" );
417 MESSAGE( "No built-in EXE module loaded! Did you create a .spec file?\n" );
421 /* Load built-in module */
422 if ( !dll_modules
[exe
] )
423 if ( !(dll_modules
[exe
] = BUILTIN32_DoLoadImage( builtin_dlls
[exe
] )) )
426 /* Create 16-bit dummy module */
427 hModule16
= MODULE_CreateDummyModule( builtin_dlls
[exe
]->filename
, 0 );
428 if ( hModule16
< 32 ) return 0;
429 pModule
= (NE_MODULE
*)GlobalLock16( hModule16
);
430 pModule
->flags
= NE_FFLAGS_SINGLEDATA
| NE_FFLAGS_WIN32
| NE_FFLAGS_BUILTIN
;
431 pModule
->module32
= dll_modules
[exe
];
437 /***********************************************************************
438 * BUILTIN32_UnloadLibrary
440 * Unload the built-in library and free the modref.
442 void BUILTIN32_UnloadLibrary(WINE_MODREF
*wm
)
444 /* FIXME: do something here */
448 /***********************************************************************
449 * BUILTIN32_GetEntryPoint
451 * Return the name of the DLL entry point corresponding
452 * to a relay entry point address. This is used only by relay debugging.
454 * This function _must_ return the real entry point to call
455 * after the debug info is printed.
457 ENTRYPOINT32
BUILTIN32_GetEntryPoint( char *buffer
, void *relay
,
458 unsigned int *typemask
)
460 const BUILTIN32_DESCRIPTOR
*descr
= NULL
;
463 /* First find the module */
465 for (i
= 0; i
< nb_dlls
; i
++)
468 IMAGE_SECTION_HEADER
*sec
= PE_SECTIONS(dll_modules
[i
]);
469 DEBUG_ENTRY_POINT
*debug
=
470 (DEBUG_ENTRY_POINT
*)((DWORD
)dll_modules
[i
] + sec
[0].VirtualAddress
);
471 DEBUG_ENTRY_POINT
*func
= (DEBUG_ENTRY_POINT
*)relay
;
472 descr
= builtin_dlls
[i
];
473 if (debug
<= func
&& func
< debug
+ descr
->nb_funcs
)
475 ordinal
= func
- debug
;
480 if (!descr
) return NULL
;
482 /* Now find the function */
484 for (i
= 0; i
< descr
->nb_names
; i
++)
485 if (descr
->ordinals
[i
] == ordinal
) break;
487 sprintf( buffer
, "%s.%d: %s", descr
->name
, ordinal
+ descr
->base
,
488 (i
< descr
->nb_names
) ? descr
->names
[i
] : "@" );
489 *typemask
= descr
->argtypes
[ordinal
];
490 return descr
->functions
[ordinal
];
493 /***********************************************************************
494 * BUILTIN32_SwitchRelayDebug
496 * FIXME: enhance to do it module relative.
498 void BUILTIN32_SwitchRelayDebug(BOOL onoff
)
500 const BUILTIN32_DESCRIPTOR
*descr
;
501 IMAGE_SECTION_HEADER
*sec
;
502 DEBUG_ENTRY_POINT
*debug
;
506 if (!(TRACE_ON(relay
) || WARN_ON(relay
)))
508 for (j
= 0; j
< nb_dlls
; j
++)
510 if (!dll_modules
[j
]) continue;
511 sec
= PE_SECTIONS(dll_modules
[j
]);
512 debug
= (DEBUG_ENTRY_POINT
*)((DWORD
)dll_modules
[j
] + sec
[1].VirtualAddress
);
513 descr
= builtin_dlls
[j
];
514 for (i
= 0; i
< descr
->nb_funcs
; i
++,debug
++) {
515 if (!descr
->functions
[i
]) continue;
516 if ((descr
->args
[i
]==0xff) || (descr
->args
[i
]==0xfe))
519 debug
->call
= 0xe8; /* lcall relative */
520 debug
->callfrom32
= (DWORD
)RELAY_CallFrom32
-
523 debug
->call
= 0xe9; /* ljmp relative */
524 debug
->callfrom32
= (DWORD
)descr
->functions
[i
] -
529 #endif /* __i386__ */
533 /***********************************************************************
534 * BUILTIN32_RegisterDLL
536 * Register a built-in DLL descriptor.
538 void BUILTIN32_RegisterDLL( const BUILTIN32_DESCRIPTOR
*descr
)
540 assert( nb_dlls
< MAX_DLLS
);
541 builtin_dlls
[nb_dlls
++] = descr
;
544 /***********************************************************************
545 * BUILTIN32_Unimplemented
547 * This function is called for unimplemented 32-bit entry points (declared
548 * as 'stub' in the spec file).
550 void BUILTIN32_Unimplemented( const BUILTIN32_DESCRIPTOR
*descr
, int ordinal
)
552 const char *func_name
= "???";
555 __RESTORE_ES
; /* Just in case */
557 for (i
= 0; i
< descr
->nb_names
; i
++)
558 if (descr
->ordinals
[i
] + descr
->base
== ordinal
) break;
559 if (i
< descr
->nb_names
) func_name
= descr
->names
[i
];
561 MESSAGE( "No handler for Win32 routine %s.%d: %s",
562 descr
->name
, ordinal
, func_name
);
564 MESSAGE( " (called from %p)", __builtin_return_address(1) );