4 * Copyright 1994 Eric Youndale & Erik Bos
5 * Copyright 1995 Martin von Löwis
6 * Copyright 1996-98 Marcus Meissner
8 * based on Eric Youndale's pe-test and:
10 * ftp.microsoft.com:/pub/developer/MSDN/CD8/PEFILE.ZIP
12 * ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP
14 * Modified for use with MPlayer, detailed CVS changelog at
15 * http://www.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/
17 * File now distributed as part of VLC media player with no modifications.
19 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version.
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
34 * Before you start changing something in this file be aware of the following:
36 * - There are several functions called recursively. In a very subtle and
37 * obscure way. DLLs can reference each other recursively etc.
38 * - If you want to enhance, speed up or clean up something in here, think
39 * twice WHY it is implemented in that strange way. There is usually a reason.
40 * Though sometimes it might just be lazyness ;)
41 * - In PE_MapImage, right before fixup_imports() all external and internal
42 * state MUST be correct since this function can be called with the SAME image
43 * AGAIN. (Thats recursion for you.) That means MODREF.module and
45 * - Sometimes, we can't use Linux mmap() to mmap() the images directly.
47 * The problem is, that there is not direct 1:1 mapping from a diskimage and
48 * a memoryimage. The headers at the start are mapped linear, but the sections
49 * are not. Older x86 pe binaries are 512 byte aligned in file and 4096 byte
50 * aligned in memory. Linux likes them 4096 byte aligned in memory (due to
51 * x86 pagesize, this cannot be fixed without a rather large kernel rewrite)
52 * and 'blocksize' file-aligned (offsets). Since we have 512/1024/2048 (CDROM)
53 * and other byte blocksizes, we can't always do this. We *can* do this for
54 * newer pe binaries produced by MSVC 5 and later, since they are also aligned
55 * to 4096 byte boundaries on disk.
65 #include <sys/types.h>
68 #ifdef HAVE_SYS_MMAN_H
71 #include "wine/windef.h"
72 #include "wine/winbase.h"
73 #include "wine/winerror.h"
74 #include "wine/heap.h"
75 #include "wine/pe_image.h"
76 #include "wine/module.h"
77 #include "wine/debugtools.h"
81 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
83 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
85 extern void* LookupExternal(const char* library
, int ordinal
);
86 extern void* LookupExternalByName(const char* library
, const char* name
);
88 static void dump_exports( HMODULE hModule
)
93 u_long
*function
,*functions
;
95 unsigned int load_addr
= hModule
;
97 DWORD rva_start
= PE_HEADER(hModule
)->OptionalHeader
98 .DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].VirtualAddress
;
99 DWORD rva_end
= rva_start
+ PE_HEADER(hModule
)->OptionalHeader
100 .DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].Size
;
101 IMAGE_EXPORT_DIRECTORY
*pe_exports
= (IMAGE_EXPORT_DIRECTORY
*)RVA(rva_start
);
103 Module
= (char*)RVA(pe_exports
->Name
);
104 TRACE("*******EXPORT DATA*******\n");
105 TRACE("Module name is %s, %ld functions, %ld names\n",
106 Module
, pe_exports
->NumberOfFunctions
, pe_exports
->NumberOfNames
);
108 ordinal
=(u_short
*) RVA(pe_exports
->AddressOfNameOrdinals
);
109 functions
=function
=(u_long
*) RVA(pe_exports
->AddressOfFunctions
);
110 name
=(u_char
**) RVA(pe_exports
->AddressOfNames
);
112 TRACE(" Ord RVA Addr Name\n" );
113 for (i
=0;i
<pe_exports
->NumberOfFunctions
;i
++, function
++)
115 if (!*function
) continue;
118 DPRINTF( "%4ld %08lx %p", i
+ pe_exports
->Base
, *function
, RVA(*function
) );
120 for (j
= 0; j
< pe_exports
->NumberOfNames
; j
++)
123 DPRINTF( " %s", (char*)RVA(name
[j
]) );
126 if ((*function
>= rva_start
) && (*function
<= rva_end
))
127 DPRINTF(" (forwarded -> %s)", (char *)RVA(*function
));
133 /* Look up the specified function or ordinal in the exportlist:
135 * - look up the name in the Name list.
136 * - look up the ordinal with that index.
137 * - use the ordinal as offset into the functionlist
138 * If it is a ordinal:
139 * - use ordinal-pe_export->Base as offset into the functionlist
141 FARPROC
PE_FindExportedFunction(
149 const char *ename
= NULL
;
151 PE_MODREF
*pem
= &(wm
->binfmt
.pe
);
152 IMAGE_EXPORT_DIRECTORY
*exports
= pem
->pe_export
;
153 unsigned int load_addr
= wm
->module
;
154 u_long rva_start
, rva_end
, addr
;
157 if (HIWORD(funcName
))
158 TRACE("(%s)\n",funcName
);
160 TRACE("(%d)\n",(int)funcName
);
162 /* Not a fatal problem, some apps do
163 * GetProcAddress(0,"RegisterPenApp") which triggers this
166 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm
->module
,wm
->modname
,pem
);
169 ordinals
= (u_short
*) RVA(exports
->AddressOfNameOrdinals
);
170 function
= (u_long
*) RVA(exports
->AddressOfFunctions
);
171 name
= (u_char
**) RVA(exports
->AddressOfNames
);
173 rva_start
= PE_HEADER(wm
->module
)->OptionalHeader
174 .DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].VirtualAddress
;
175 rva_end
= rva_start
+ PE_HEADER(wm
->module
)->OptionalHeader
176 .DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].Size
;
178 if (HIWORD(funcName
))
181 int min
= 0, max
= exports
->NumberOfNames
- 1;
184 int res
, pos
= (min
+ max
) / 2;
185 ename
= (const char*) RVA(name
[pos
]);
186 if (!(res
= strcmp( ename
, funcName
)))
188 ordinal
= ordinals
[pos
];
191 if (res
> 0) max
= pos
- 1;
195 for (i
= 0; i
< exports
->NumberOfNames
; i
++)
197 ename
= (const char*) RVA(name
[i
]);
198 if (!strcmp( ename
, funcName
))
200 ERR( "%s.%s required a linear search\n", wm
->modname
, funcName
);
201 ordinal
= ordinals
[i
];
209 ordinal
= LOWORD(funcName
) - exports
->Base
;
212 for (i
= 0; i
< exports
->NumberOfNames
; i
++)
213 if (ordinals
[i
] == ordinal
)
215 ename
= RVA(name
[i
]);
222 if (ordinal
>= exports
->NumberOfFunctions
)
224 TRACE(" ordinal %ld out of range!\n", ordinal
+ exports
->Base
);
227 addr
= function
[ordinal
];
228 if (!addr
) return NULL
;
229 if ((addr
< rva_start
) || (addr
>= rva_end
))
231 FARPROC proc
= RVA(addr
);
234 if (!ename
) ename
= "@";
235 // proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
236 TRACE("SNOOP_GetProcAddress n/a\n");
244 char *forward
= RVA(addr
);
246 char *end
= strchr(forward
, '.');
248 if (!end
) return NULL
;
249 if (end
- forward
>= sizeof(module
)) return NULL
;
250 memcpy( module
, forward
, end
- forward
);
251 module
[end
-forward
] = 0;
252 if (!(wm
= MODULE_FindModule( module
)))
254 ERR("module not found for forward '%s'\n", forward
);
257 return MODULE_GetProcAddress( wm
->module
, end
+ 1, snoop
);
261 static DWORD
fixup_imports( WINE_MODREF
*wm
)
263 IMAGE_IMPORT_DESCRIPTOR
*pe_imp
;
265 unsigned int load_addr
= wm
->module
;
266 int i
,characteristics_detection
=1;
269 assert(wm
->type
==MODULE32_PE
);
270 pem
= &(wm
->binfmt
.pe
);
272 modname
= (char*) RVA(pem
->pe_export
->Name
);
274 modname
= "<unknown>";
277 TRACE("Dumping imports list\n");
280 pe_imp
= pem
->pe_import
;
281 if (!pe_imp
) return 0;
283 /* We assume that we have at least one import with !0 characteristics and
284 * detect broken imports with all characteristsics 0 (notably Borland) and
285 * switch the detection off for them.
287 for (i
= 0; pe_imp
->Name
; pe_imp
++) {
288 if (!i
&& !pe_imp
->u
.Characteristics
)
289 characteristics_detection
= 0;
290 if (characteristics_detection
&& !pe_imp
->u
.Characteristics
)
298 wm
->deps
= HeapAlloc( GetProcessHeap(), 0, i
*sizeof(WINE_MODREF
*) );
300 /* load the imported modules. They are automatically
301 * added to the modref list of the process.
304 for (i
= 0, pe_imp
= pem
->pe_import
; pe_imp
->Name
; pe_imp
++) {
305 IMAGE_IMPORT_BY_NAME
*pe_name
;
306 PIMAGE_THUNK_DATA import_list
,thunk_list
;
307 char *name
= (char *) RVA(pe_imp
->Name
);
309 if (characteristics_detection
&& !pe_imp
->u
.Characteristics
)
312 //#warning FIXME: here we should fill imports
313 TRACE("Loading imports for %s.dll\n", name
);
315 if (pe_imp
->u
.OriginalFirstThunk
!= 0) {
316 TRACE("Microsoft style imports used\n");
317 import_list
=(PIMAGE_THUNK_DATA
) RVA(pe_imp
->u
.OriginalFirstThunk
);
318 thunk_list
= (PIMAGE_THUNK_DATA
) RVA(pe_imp
->FirstThunk
);
320 while (import_list
->u1
.Ordinal
) {
321 if (IMAGE_SNAP_BY_ORDINAL(import_list
->u1
.Ordinal
)) {
322 int ordinal
= IMAGE_ORDINAL(import_list
->u1
.Ordinal
);
324 // TRACE("--- Ordinal %s,%d\n", name, ordinal);
326 thunk_list
->u1
.Function
=LookupExternal(name
, ordinal
);
328 pe_name
= (PIMAGE_IMPORT_BY_NAME
)RVA(import_list
->u1
.AddressOfData
);
329 // TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
330 thunk_list
->u1
.Function
=LookupExternalByName(name
, pe_name
->Name
);
336 TRACE("Borland style imports used\n");
337 thunk_list
= (PIMAGE_THUNK_DATA
) RVA(pe_imp
->FirstThunk
);
338 while (thunk_list
->u1
.Ordinal
) {
339 if (IMAGE_SNAP_BY_ORDINAL(thunk_list
->u1
.Ordinal
)) {
341 int ordinal
= IMAGE_ORDINAL(thunk_list
->u1
.Ordinal
);
343 TRACE("--- Ordinal %s.%d\n",name
,ordinal
);
344 thunk_list
->u1
.Function
=LookupExternal(
347 pe_name
=(PIMAGE_IMPORT_BY_NAME
) RVA(thunk_list
->u1
.AddressOfData
);
348 TRACE("--- %s %s.%d\n",
349 pe_name
->Name
,name
,pe_name
->Hint
);
350 thunk_list
->u1
.Function
=LookupExternalByName(
351 name
, pe_name
->Name
);
360 static int calc_vma_size( HMODULE hModule
)
363 IMAGE_SECTION_HEADER
*pe_seg
= PE_SECTIONS(hModule
);
365 TRACE("Dump of segment table\n");
366 TRACE(" Name VSz Vaddr SzRaw Fileadr *Reloc *Lineum #Reloc #Linum Char\n");
367 for (i
= 0; i
< PE_HEADER(hModule
)->FileHeader
.NumberOfSections
; i
++)
369 TRACE("%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
371 pe_seg
->Misc
.VirtualSize
,
372 pe_seg
->VirtualAddress
,
373 pe_seg
->SizeOfRawData
,
374 pe_seg
->PointerToRawData
,
375 pe_seg
->PointerToRelocations
,
376 pe_seg
->PointerToLinenumbers
,
377 pe_seg
->NumberOfRelocations
,
378 pe_seg
->NumberOfLinenumbers
,
379 pe_seg
->Characteristics
);
380 vma_size
=max(vma_size
, pe_seg
->VirtualAddress
+pe_seg
->SizeOfRawData
);
381 vma_size
=max(vma_size
, pe_seg
->VirtualAddress
+pe_seg
->Misc
.VirtualSize
);
387 static void do_relocations( unsigned int load_addr
, IMAGE_BASE_RELOCATION
*r
)
389 int delta
= load_addr
- PE_HEADER(load_addr
)->OptionalHeader
.ImageBase
;
390 int hdelta
= (delta
>> 16) & 0xFFFF;
391 int ldelta
= delta
& 0xFFFF;
396 while(r
->VirtualAddress
)
398 char *page
= (char*) RVA(r
->VirtualAddress
);
399 int count
= (r
->SizeOfBlock
- 8)/2;
401 TRACE_(fixup
)("%x relocations for page %lx\n",
402 count
, r
->VirtualAddress
);
406 int offset
= r
->TypeOffset
[i
] & 0xFFF;
407 int type
= r
->TypeOffset
[i
] >> 12;
408 // TRACE_(fixup)("patching %x type %x\n", offset, type);
411 case IMAGE_REL_BASED_ABSOLUTE
: break;
412 case IMAGE_REL_BASED_HIGH
:
413 *(short*)(page
+offset
) += hdelta
;
415 case IMAGE_REL_BASED_LOW
:
416 *(short*)(page
+offset
) += ldelta
;
418 case IMAGE_REL_BASED_HIGHLOW
:
419 *(int*)(page
+offset
) += delta
;
422 case IMAGE_REL_BASED_HIGHADJ
:
423 FIXME("Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
425 case IMAGE_REL_BASED_MIPS_JMPADDR
:
426 FIXME("Is this a MIPS machine ???\n");
429 FIXME("Unknown fixup type\n");
433 r
= (IMAGE_BASE_RELOCATION
*)((char*)r
+ r
->SizeOfBlock
);
441 /**********************************************************************
443 * Load one PE format DLL/EXE into memory
445 * Unluckily we can't just mmap the sections where we want them, for
446 * (at least) Linux does only support offsets which are page-aligned.
448 * BUT we have to map the whole image anyway, for Win32 programs sometimes
449 * want to access them. (HMODULE32 point to the start of it)
451 HMODULE
PE_LoadImage( int handle
, LPCSTR filename
, WORD
*version
)
457 IMAGE_NT_HEADERS
*nt
;
458 IMAGE_SECTION_HEADER
*pe_sec
;
459 IMAGE_DATA_DIRECTORY
*dir
;
460 int i
, rawsize
, lowest_va
, vma_size
, file_size
= 0;
461 DWORD load_addr
= 0, aoep
, reloc
= 0;
462 // struct get_read_fd_request *req = get_req_buffer();
463 int unix_handle
= handle
;
464 int page_size
= getpagesize();
467 // if ( GetFileInformationByHandle( hFile, &bhfi ) )
468 // file_size = bhfi.nFileSizeLow;
469 file_size
=lseek(handle
, 0, SEEK_END
);
470 lseek(handle
, 0, SEEK_SET
);
472 //#warning fix CreateFileMappingA
473 mapping
= CreateFileMappingA( handle
, NULL
, PAGE_READONLY
| SEC_COMMIT
,
477 WARN("CreateFileMapping error %ld\n", GetLastError() );
480 // hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
481 hModule
=(HMODULE
)mapping
;
482 // CloseHandle( mapping );
485 WARN("MapViewOfFile error %ld\n", GetLastError() );
488 if ( *(WORD
*)hModule
!=IMAGE_DOS_SIGNATURE
)
490 WARN("%s image doesn't have DOS signature, but 0x%04x\n", filename
,*(WORD
*)hModule
);
494 nt
= PE_HEADER( hModule
);
497 if ( nt
->Signature
!= IMAGE_NT_SIGNATURE
)
499 WARN("%s image doesn't have PE signature, but 0x%08lx\n", filename
, nt
->Signature
);
504 if ( nt
->FileHeader
.Machine
!= IMAGE_FILE_MACHINE_I386
)
506 MESSAGE("Trying to load PE image for unsupported architecture (");
507 switch (nt
->FileHeader
.Machine
)
509 case IMAGE_FILE_MACHINE_UNKNOWN
: MESSAGE("Unknown"); break;
510 case IMAGE_FILE_MACHINE_I860
: MESSAGE("I860"); break;
511 case IMAGE_FILE_MACHINE_R3000
: MESSAGE("R3000"); break;
512 case IMAGE_FILE_MACHINE_R4000
: MESSAGE("R4000"); break;
513 case IMAGE_FILE_MACHINE_R10000
: MESSAGE("R10000"); break;
514 case IMAGE_FILE_MACHINE_ALPHA
: MESSAGE("Alpha"); break;
515 case IMAGE_FILE_MACHINE_POWERPC
: MESSAGE("PowerPC"); break;
516 default: MESSAGE("Unknown-%04x", nt
->FileHeader
.Machine
); break;
523 pe_sec
= PE_SECTIONS( hModule
);
524 rawsize
= 0; lowest_va
= 0x10000;
525 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++)
527 if (lowest_va
> pe_sec
[i
].VirtualAddress
)
528 lowest_va
= pe_sec
[i
].VirtualAddress
;
529 if (pe_sec
[i
].Characteristics
& IMAGE_SCN_CNT_UNINITIALIZED_DATA
)
531 if (pe_sec
[i
].PointerToRawData
+pe_sec
[i
].SizeOfRawData
> rawsize
)
532 rawsize
= pe_sec
[i
].PointerToRawData
+pe_sec
[i
].SizeOfRawData
;
536 if ( file_size
&& file_size
< rawsize
)
538 ERR("PE module is too small (header: %d, filesize: %d), "
539 "probably truncated download?\n",
540 rawsize
, file_size
);
545 aoep
= nt
->OptionalHeader
.AddressOfEntryPoint
;
546 if (aoep
&& (aoep
< lowest_va
))
547 FIXME("VIRUS WARNING: '%s' has an invalid entrypoint (0x%08lx) "
548 "below the first virtual address (0x%08x) "
549 "(possibly infected by Tchernobyl/SpaceFiller virus)!\n",
550 filename
, aoep
, lowest_va
);
553 /* FIXME: Hack! While we don't really support shared sections yet,
554 * this checks for those special cases where the whole DLL
555 * consists only of shared sections and is mapped into the
556 * shared address space > 2GB. In this case, we assume that
557 * the module got mapped at its base address. Thus we simply
558 * check whether the module has actually been mapped there
559 * and use it, if so. This is needed to get Win95 USER32.DLL
560 * to work (until we support shared sections properly).
563 if ( nt
->OptionalHeader
.ImageBase
& 0x80000000 )
565 HMODULE sharedMod
= (HMODULE
)nt
->OptionalHeader
.ImageBase
;
566 IMAGE_NT_HEADERS
*sharedNt
= (PIMAGE_NT_HEADERS
)
567 ( (LPBYTE
)sharedMod
+ ((LPBYTE
)nt
- (LPBYTE
)hModule
) );
569 /* Well, this check is not really comprehensive,
570 but should be good enough for now ... */
571 if ( !IsBadReadPtr( (LPBYTE
)sharedMod
, sizeof(IMAGE_DOS_HEADER
) )
572 && memcmp( (LPBYTE
)sharedMod
, (LPBYTE
)hModule
, sizeof(IMAGE_DOS_HEADER
) ) == 0
573 && !IsBadReadPtr( sharedNt
, sizeof(IMAGE_NT_HEADERS
) )
574 && memcmp( sharedNt
, nt
, sizeof(IMAGE_NT_HEADERS
) ) == 0 )
576 UnmapViewOfFile( (LPVOID
)hModule
);
583 load_addr
= nt
->OptionalHeader
.ImageBase
;
584 vma_size
= calc_vma_size( hModule
);
586 load_addr
= (DWORD
)VirtualAlloc( (void*)load_addr
, vma_size
,
587 MEM_RESERVE
| MEM_COMMIT
,
588 PAGE_EXECUTE_READWRITE
);
592 FIXME("We need to perform base relocations for %s\n", filename
);
593 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_BASERELOC
;
595 reloc
= dir
->VirtualAddress
;
598 FIXME( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
600 (nt
->FileHeader
.Characteristics
&IMAGE_FILE_RELOCS_STRIPPED
)?
601 "stripped during link" : "unknown reason" );
605 /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
606 * really make sure that the *new* base address is also > 2GB.
607 * Some DLLs really check the MSB of the module handle :-/
609 if ( nt
->OptionalHeader
.ImageBase
& 0x80000000 )
610 ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
612 load_addr
= (DWORD
)VirtualAlloc( NULL
, vma_size
,
613 MEM_RESERVE
| MEM_COMMIT
,
614 PAGE_EXECUTE_READWRITE
);
617 "FATAL: Couldn't load module %s (out of memory, %d needed)!\n", filename
, vma_size
);
622 TRACE("Load addr is %lx (base %lx), range %x\n",
623 load_addr
, nt
->OptionalHeader
.ImageBase
, vma_size
);
624 TRACE_(segment
)("Loading %s at %lx, range %x\n",
625 filename
, load_addr
, vma_size
);
629 *(PIMAGE_DOS_HEADER
)load_addr
= *(PIMAGE_DOS_HEADER
)hModule
;
630 *PE_HEADER( load_addr
) = *nt
;
631 memcpy( PE_SECTIONS(load_addr
), PE_SECTIONS(hModule
),
632 sizeof(IMAGE_SECTION_HEADER
) * nt
->FileHeader
.NumberOfSections
);
635 memcpy( load_addr
, hModule
, lowest_fa
);
638 if ((void*)FILE_dommap( handle
, (void *)load_addr
, 0, nt
->OptionalHeader
.SizeOfHeaders
,
639 0, 0, PROT_EXEC
| PROT_WRITE
| PROT_READ
,
640 MAP_PRIVATE
| MAP_FIXED
) != (void*)load_addr
)
642 ERR_(win32
)( "Critical Error: failed to map PE header to necessary address.\n");
647 pe_sec
= PE_SECTIONS( hModule
);
648 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++, pe_sec
++)
650 if (!pe_sec
->SizeOfRawData
|| !pe_sec
->PointerToRawData
) continue;
651 TRACE("%s: mmaping section %s at %p off %lx size %lx/%lx\n",
652 filename
, pe_sec
->Name
, (void*)RVA(pe_sec
->VirtualAddress
),
653 pe_sec
->PointerToRawData
, pe_sec
->SizeOfRawData
, pe_sec
->Misc
.VirtualSize
);
654 if ((void*)FILE_dommap( unix_handle
, (void*)RVA(pe_sec
->VirtualAddress
),
655 0, pe_sec
->SizeOfRawData
, 0, pe_sec
->PointerToRawData
,
656 PROT_EXEC
| PROT_WRITE
| PROT_READ
,
657 MAP_PRIVATE
| MAP_FIXED
) != (void*)RVA(pe_sec
->VirtualAddress
))
660 ERR_(win32
)( "Critical Error: failed to map PE section to necessary address.\n");
663 if ((pe_sec
->SizeOfRawData
< pe_sec
->Misc
.VirtualSize
) &&
664 (pe_sec
->SizeOfRawData
& (page_size
-1)))
666 DWORD end
= (pe_sec
->SizeOfRawData
& ~(page_size
-1)) + page_size
;
667 if (end
> pe_sec
->Misc
.VirtualSize
) end
= pe_sec
->Misc
.VirtualSize
;
668 TRACE("clearing %p - %p\n",
669 RVA(pe_sec
->VirtualAddress
) + pe_sec
->SizeOfRawData
,
670 RVA(pe_sec
->VirtualAddress
) + end
);
671 memset( (char*)RVA(pe_sec
->VirtualAddress
) + pe_sec
->SizeOfRawData
, 0,
672 end
- pe_sec
->SizeOfRawData
);
678 do_relocations( load_addr
, (IMAGE_BASE_RELOCATION
*)RVA(reloc
) );
681 *version
= ( (nt
->OptionalHeader
.MajorSubsystemVersion
& 0xff) << 8 )
682 | (nt
->OptionalHeader
.MinorSubsystemVersion
& 0xff);
685 UnmapViewOfFile( (LPVOID
)hModule
);
686 return (HMODULE
)load_addr
;
689 if (unix_handle
!= -1) close( unix_handle
);
691 VirtualFree( (LPVOID
)load_addr
, 0, MEM_RELEASE
);
692 UnmapViewOfFile( (LPVOID
)hModule
);
696 /**********************************************************************
699 * Create WINE_MODREF structure for loaded HMODULE32, link it into
700 * process modref_list, and fixup all imports.
702 * Note: hModule must point to a correctly allocated PE image,
703 * with base relocations applied; the 16-bit dummy module
704 * associated to hModule must already exist.
706 * Note: This routine must always be called in the context of the
707 * process that is to own the module to be created.
709 WINE_MODREF
*PE_CreateModule( HMODULE hModule
,
710 LPCSTR filename
, DWORD flags
, WIN_BOOL builtin
)
712 DWORD load_addr
= (DWORD
)hModule
;
713 IMAGE_NT_HEADERS
*nt
= PE_HEADER(hModule
);
714 IMAGE_DATA_DIRECTORY
*dir
;
715 IMAGE_IMPORT_DESCRIPTOR
*pe_import
= NULL
;
716 IMAGE_EXPORT_DIRECTORY
*pe_export
= NULL
;
717 IMAGE_RESOURCE_DIRECTORY
*pe_resource
= NULL
;
720 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_EXPORT
;
722 pe_export
= (PIMAGE_EXPORT_DIRECTORY
)RVA(dir
->VirtualAddress
);
724 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_IMPORT
;
726 pe_import
= (PIMAGE_IMPORT_DESCRIPTOR
)RVA(dir
->VirtualAddress
);
728 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_RESOURCE
;
730 pe_resource
= (PIMAGE_RESOURCE_DIRECTORY
)RVA(dir
->VirtualAddress
);
732 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_EXCEPTION
;
733 if (dir
->Size
) FIXME("Exception directory ignored\n" );
735 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_SECURITY
;
736 if (dir
->Size
) FIXME("Security directory ignored\n" );
741 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_DEBUG
;
742 if (dir
->Size
) TRACE("Debug directory ignored\n" );
744 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_COPYRIGHT
;
745 if (dir
->Size
) FIXME("Copyright string ignored\n" );
747 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_GLOBALPTR
;
748 if (dir
->Size
) FIXME("Global Pointer (MIPS) ignored\n" );
752 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
;
753 if (dir
->Size
) FIXME("Load Configuration directory ignored\n" );
755 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT
;
756 if (dir
->Size
) TRACE("Bound Import directory ignored\n" );
758 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_IAT
;
759 if (dir
->Size
) TRACE("Import Address Table directory ignored\n" );
761 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT
;
764 TRACE("Delayed import, stub calls LoadLibrary\n" );
766 * Nothing to do here.
771 * This code is useful to observe what the heck is going on.
774 ImgDelayDescr
*pe_delay
= NULL
;
775 pe_delay
= (PImgDelayDescr
)RVA(dir
->VirtualAddress
);
776 TRACE_(delayhlp
)("pe_delay->grAttrs = %08x\n", pe_delay
->grAttrs
);
777 TRACE_(delayhlp
)("pe_delay->szName = %s\n", pe_delay
->szName
);
778 TRACE_(delayhlp
)("pe_delay->phmod = %08x\n", pe_delay
->phmod
);
779 TRACE_(delayhlp
)("pe_delay->pIAT = %08x\n", pe_delay
->pIAT
);
780 TRACE_(delayhlp
)("pe_delay->pINT = %08x\n", pe_delay
->pINT
);
781 TRACE_(delayhlp
)("pe_delay->pBoundIAT = %08x\n", pe_delay
->pBoundIAT
);
782 TRACE_(delayhlp
)("pe_delay->pUnloadIAT = %08x\n", pe_delay
->pUnloadIAT
);
783 TRACE_(delayhlp
)("pe_delay->dwTimeStamp = %08x\n", pe_delay
->dwTimeStamp
);
788 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
;
789 if (dir
->Size
) FIXME("Unknown directory 14 ignored\n" );
791 dir
= nt
->OptionalHeader
.DataDirectory
+15;
792 if (dir
->Size
) FIXME("Unknown directory 15 ignored\n" );
797 wm
= (WINE_MODREF
*)HeapAlloc( GetProcessHeap(),
798 HEAP_ZERO_MEMORY
, sizeof(*wm
) );
799 wm
->module
= hModule
;
802 wm
->flags
|= WINE_MODREF_INTERNAL
;
803 if ( flags
& DONT_RESOLVE_DLL_REFERENCES
)
804 wm
->flags
|= WINE_MODREF_DONT_RESOLVE_REFS
;
805 if ( flags
& LOAD_LIBRARY_AS_DATAFILE
)
806 wm
->flags
|= WINE_MODREF_LOAD_AS_DATAFILE
;
808 wm
->type
= MODULE32_PE
;
809 wm
->binfmt
.pe
.pe_export
= pe_export
;
810 wm
->binfmt
.pe
.pe_import
= pe_import
;
811 wm
->binfmt
.pe
.pe_resource
= pe_resource
;
812 wm
->binfmt
.pe
.tlsindex
= -1;
814 wm
->filename
= malloc(strlen(filename
)+1);
815 strcpy(wm
->filename
, filename
);
816 wm
->modname
= strrchr( wm
->filename
, '\\' );
817 if (!wm
->modname
) wm
->modname
= wm
->filename
;
821 dump_exports( hModule
);
826 && !( wm
->flags
& WINE_MODREF_LOAD_AS_DATAFILE
)
827 && !( wm
->flags
& WINE_MODREF_DONT_RESOLVE_REFS
)
828 && fixup_imports( wm
) )
830 /* remove entry from modref chain */
839 /******************************************************************************
840 * The PE Library Loader frontend.
841 * FIXME: handle the flags.
843 WINE_MODREF
*PE_LoadLibraryExA (LPCSTR name
, DWORD flags
)
852 strncpy(filename
, name
, sizeof(filename
));
853 hFile
=open(filename
, O_RDONLY
);
858 hModule32
= PE_LoadImage( hFile
, filename
, &version
);
861 SetLastError( ERROR_OUTOFMEMORY
);
865 if ( !(wm
= PE_CreateModule( hModule32
, filename
, flags
, FALSE
)) )
867 ERR( "can't load %s\n", filename
);
868 SetLastError( ERROR_OUTOFMEMORY
);
872 //printf("^^^^^^^^^^^^^^^^Alloc VM1 %p\n", wm);
877 /*****************************************************************************
880 * Unload the library unmapping the image and freeing the modref structure.
882 void PE_UnloadLibrary(WINE_MODREF
*wm
)
884 TRACE(" unloading %s\n", wm
->filename
);
887 free(wm
->short_filename
);
888 HeapFree( GetProcessHeap(), 0, wm
->deps
);
889 VirtualFree( (LPVOID
)wm
->module
, 0, MEM_RELEASE
);
890 HeapFree( GetProcessHeap(), 0, wm
);
891 //printf("^^^^^^^^^^^^^^^^Free VM1 %p\n", wm);
894 /*****************************************************************************
895 * Load the PE main .EXE. All other loading is done by PE_LoadLibraryExA
896 * FIXME: this function should use PE_LoadLibraryExA, but currently can't
897 * due to the PROCESS_Create stuff.
902 * This is a dirty hack.
903 * The win32 DLLs contain an alloca routine, that first probes the soon
904 * to be allocated new memory *below* the current stack pointer in 4KByte
905 * increments. After the mem probing below the current %esp, the stack
906 * pointer is finally decremented to make room for the "alloca"ed memory.
907 * Maybe the probing code is intended to extend the stack on a windows box.
908 * Anyway, the linux kernel does *not* extend the stack by simply accessing
909 * memory below %esp; it segfaults.
910 * The extend_stack_for_dll_alloca() routine just preallocates a big chunk
911 * of memory on the stack, for use by the DLLs alloca routine.
912 * Added the noinline attribute as e.g. gcc 3.2.2 inlines this function
913 * in a way that breaks it.
915 static void __attribute__((noinline
)) extend_stack_for_dll_alloca(void)
917 #if !defined(__FreeBSD__) && !defined(__DragonFly__)
918 volatile int* mem
=alloca(0x20000);
923 /* Called if the library is loaded or freed.
924 * NOTE: if a thread attaches a DLL, the current thread will only do
925 * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
928 WIN_BOOL
PE_InitDLL( WINE_MODREF
*wm
, DWORD type
, LPVOID lpReserved
)
930 WIN_BOOL retv
= TRUE
;
931 assert( wm
->type
== MODULE32_PE
);
934 if ((PE_HEADER(wm
->module
)->FileHeader
.Characteristics
& IMAGE_FILE_DLL
) &&
935 (PE_HEADER(wm
->module
)->OptionalHeader
.AddressOfEntryPoint
)
938 entry
= (void*)PE_FindExportedFunction(wm
, "DllMain", 0);
940 entry
= (void*)RVA_PTR( wm
->module
,OptionalHeader
.AddressOfEntryPoint
);
942 TRACE_(relay
)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
943 entry
, wm
->module
, type
, lpReserved
);
946 TRACE("Entering DllMain(");
949 case DLL_PROCESS_DETACH
:
950 TRACE("DLL_PROCESS_DETACH) ");
952 case DLL_PROCESS_ATTACH
:
953 TRACE("DLL_PROCESS_ATTACH) ");
955 case DLL_THREAD_DETACH
:
956 TRACE("DLL_THREAD_DETACH) ");
958 case DLL_THREAD_ATTACH
:
959 TRACE("DLL_THREAD_ATTACH) ");
962 TRACE("for %s\n", wm
->filename
);
963 extend_stack_for_dll_alloca();
964 retv
= entry( wm
->module
, type
, lpReserved
);
971 _fixup_address(PIMAGE_OPTIONAL_HEADER opt
,int delta
,LPVOID addr
) {
972 if ( ((DWORD
)addr
>opt
->ImageBase
) &&
973 ((DWORD
)addr
<opt
->ImageBase
+opt
->SizeOfImage
)
976 return (LPVOID
)(((DWORD
)addr
)+delta
);