2 * Copyright 1994 Eric Youndale & Erik Bos
3 * Copyright 1995 Martin von Löwis
4 * Copyright 1996-98 Marcus Meissner
6 * based on Eric Youndale's pe-test and:
8 * ftp.microsoft.com:/pub/developer/MSDN/CD8/PEFILE.ZIP
10 * ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP
13 * Before you start changing something in this file be aware of the following:
15 * - There are several functions called recursively. In a very subtle and
16 * obscure way. DLLs can reference each other recursively etc.
17 * - If you want to enhance, speed up or clean up something in here, think
18 * twice WHY it is implemented in that strange way. There is usually a reason.
19 * Though sometimes it might just be lazyness ;)
20 * - In PE_MapImage, right before fixup_imports() all external and internal
21 * state MUST be correct since this function can be called with the SAME image
22 * AGAIN. (Thats recursion for you.) That means MODREF.module and
24 * - Sometimes, we can't use Linux mmap() to mmap() the images directly.
26 * The problem is, that there is not direct 1:1 mapping from a diskimage and
27 * a memoryimage. The headers at the start are mapped linear, but the sections
28 * are not. Older x86 pe binaries are 512 byte aligned in file and 4096 byte
29 * aligned in memory. Linux likes them 4096 byte aligned in memory (due to
30 * x86 pagesize, this cannot be fixed without a rather large kernel rewrite)
31 * and 'blocksize' file-aligned (offsets). Since we have 512/1024/2048 (CDROM)
32 * and other byte blocksizes, we can't always do this. We *can* do this for
33 * newer pe binaries produced by MSVC 5 and later, since they are also aligned
34 * to 4096 byte boundaries on disk.
44 #include <sys/types.h>
47 #ifdef HAVE_SYS_MMAN_H
50 #include "wine/windef.h"
51 #include "wine/winbase.h"
52 #include "wine/winerror.h"
53 #include "wine/heap.h"
54 #include "wine/pe_image.h"
55 #include "wine/module.h"
56 #include "wine/debugtools.h"
60 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
62 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
64 extern void* LookupExternal(const char* library
, int ordinal
);
65 extern void* LookupExternalByName(const char* library
, const char* name
);
67 static void dump_exports( HMODULE hModule
)
72 u_long
*function
,*functions
;
74 unsigned int load_addr
= hModule
;
76 DWORD rva_start
= PE_HEADER(hModule
)->OptionalHeader
77 .DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].VirtualAddress
;
78 DWORD rva_end
= rva_start
+ PE_HEADER(hModule
)->OptionalHeader
79 .DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].Size
;
80 IMAGE_EXPORT_DIRECTORY
*pe_exports
= (IMAGE_EXPORT_DIRECTORY
*)RVA(rva_start
);
82 Module
= (char*)RVA(pe_exports
->Name
);
83 TRACE("*******EXPORT DATA*******\n");
84 TRACE("Module name is %s, %ld functions, %ld names\n",
85 Module
, pe_exports
->NumberOfFunctions
, pe_exports
->NumberOfNames
);
87 ordinal
=(u_short
*) RVA(pe_exports
->AddressOfNameOrdinals
);
88 functions
=function
=(u_long
*) RVA(pe_exports
->AddressOfFunctions
);
89 name
=(u_char
**) RVA(pe_exports
->AddressOfNames
);
91 TRACE(" Ord RVA Addr Name\n" );
92 for (i
=0;i
<pe_exports
->NumberOfFunctions
;i
++, function
++)
94 if (!*function
) continue;
97 DPRINTF( "%4ld %08lx %p", i
+ pe_exports
->Base
, *function
, RVA(*function
) );
99 for (j
= 0; j
< pe_exports
->NumberOfNames
; j
++)
102 DPRINTF( " %s", (char*)RVA(name
[j
]) );
105 if ((*function
>= rva_start
) && (*function
<= rva_end
))
106 DPRINTF(" (forwarded -> %s)", (char *)RVA(*function
));
112 /* Look up the specified function or ordinal in the exportlist:
114 * - look up the name in the Name list.
115 * - look up the ordinal with that index.
116 * - use the ordinal as offset into the functionlist
117 * If it is a ordinal:
118 * - use ordinal-pe_export->Base as offset into the functionlist
120 FARPROC
PE_FindExportedFunction(
128 const char *ename
= NULL
;
130 PE_MODREF
*pem
= &(wm
->binfmt
.pe
);
131 IMAGE_EXPORT_DIRECTORY
*exports
= pem
->pe_export
;
132 unsigned int load_addr
= wm
->module
;
133 u_long rva_start
, rva_end
, addr
;
136 if (HIWORD(funcName
))
137 TRACE("(%s)\n",funcName
);
139 TRACE("(%d)\n",(int)funcName
);
141 /* Not a fatal problem, some apps do
142 * GetProcAddress(0,"RegisterPenApp") which triggers this
145 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm
->module
,wm
->modname
,pem
);
148 ordinals
= (u_short
*) RVA(exports
->AddressOfNameOrdinals
);
149 function
= (u_long
*) RVA(exports
->AddressOfFunctions
);
150 name
= (u_char
**) RVA(exports
->AddressOfNames
);
152 rva_start
= PE_HEADER(wm
->module
)->OptionalHeader
153 .DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].VirtualAddress
;
154 rva_end
= rva_start
+ PE_HEADER(wm
->module
)->OptionalHeader
155 .DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].Size
;
157 if (HIWORD(funcName
))
160 int min
= 0, max
= exports
->NumberOfNames
- 1;
163 int res
, pos
= (min
+ max
) / 2;
164 ename
= (const char*) RVA(name
[pos
]);
165 if (!(res
= strcmp( ename
, funcName
)))
167 ordinal
= ordinals
[pos
];
170 if (res
> 0) max
= pos
- 1;
174 for (i
= 0; i
< exports
->NumberOfNames
; i
++)
176 ename
= (const char*) RVA(name
[i
]);
177 if (!strcmp( ename
, funcName
))
179 ERR( "%s.%s required a linear search\n", wm
->modname
, funcName
);
180 ordinal
= ordinals
[i
];
188 ordinal
= LOWORD(funcName
) - exports
->Base
;
191 for (i
= 0; i
< exports
->NumberOfNames
; i
++)
192 if (ordinals
[i
] == ordinal
)
194 ename
= RVA(name
[i
]);
201 if (ordinal
>= exports
->NumberOfFunctions
)
203 TRACE(" ordinal %ld out of range!\n", ordinal
+ exports
->Base
);
206 addr
= function
[ordinal
];
207 if (!addr
) return NULL
;
208 if ((addr
< rva_start
) || (addr
>= rva_end
))
210 FARPROC proc
= RVA(addr
);
213 if (!ename
) ename
= "@";
214 // proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
215 TRACE("SNOOP_GetProcAddress n/a\n");
223 char *forward
= RVA(addr
);
225 char *end
= strchr(forward
, '.');
227 if (!end
) return NULL
;
228 if (end
- forward
>= sizeof(module
)) return NULL
;
229 memcpy( module
, forward
, end
- forward
);
230 module
[end
-forward
] = 0;
231 if (!(wm
= MODULE_FindModule( module
)))
233 ERR("module not found for forward '%s'\n", forward
);
236 return MODULE_GetProcAddress( wm
->module
, end
+ 1, snoop
);
240 static DWORD
fixup_imports( WINE_MODREF
*wm
)
242 IMAGE_IMPORT_DESCRIPTOR
*pe_imp
;
244 unsigned int load_addr
= wm
->module
;
245 int i
,characteristics_detection
=1;
248 assert(wm
->type
==MODULE32_PE
);
249 pem
= &(wm
->binfmt
.pe
);
251 modname
= (char*) RVA(pem
->pe_export
->Name
);
253 modname
= "<unknown>";
256 TRACE("Dumping imports list\n");
259 pe_imp
= pem
->pe_import
;
260 if (!pe_imp
) return 0;
262 /* We assume that we have at least one import with !0 characteristics and
263 * detect broken imports with all characteristsics 0 (notably Borland) and
264 * switch the detection off for them.
266 for (i
= 0; pe_imp
->Name
; pe_imp
++) {
267 if (!i
&& !pe_imp
->u
.Characteristics
)
268 characteristics_detection
= 0;
269 if (characteristics_detection
&& !pe_imp
->u
.Characteristics
)
277 wm
->deps
= HeapAlloc( GetProcessHeap(), 0, i
*sizeof(WINE_MODREF
*) );
279 /* load the imported modules. They are automatically
280 * added to the modref list of the process.
283 for (i
= 0, pe_imp
= pem
->pe_import
; pe_imp
->Name
; pe_imp
++) {
285 IMAGE_IMPORT_BY_NAME
*pe_name
;
286 PIMAGE_THUNK_DATA import_list
,thunk_list
;
287 char *name
= (char *) RVA(pe_imp
->Name
);
289 if (characteristics_detection
&& !pe_imp
->u
.Characteristics
)
292 //#warning FIXME: here we should fill imports
293 TRACE("Loading imports for %s.dll\n", name
);
295 if (pe_imp
->u
.OriginalFirstThunk
!= 0) {
296 TRACE("Microsoft style imports used\n");
297 import_list
=(PIMAGE_THUNK_DATA
) RVA(pe_imp
->u
.OriginalFirstThunk
);
298 thunk_list
= (PIMAGE_THUNK_DATA
) RVA(pe_imp
->FirstThunk
);
300 while (import_list
->u1
.Ordinal
) {
301 if (IMAGE_SNAP_BY_ORDINAL(import_list
->u1
.Ordinal
)) {
302 int ordinal
= IMAGE_ORDINAL(import_list
->u1
.Ordinal
);
304 // TRACE("--- Ordinal %s,%d\n", name, ordinal);
306 thunk_list
->u1
.Function
=LookupExternal(name
, ordinal
);
308 pe_name
= (PIMAGE_IMPORT_BY_NAME
)RVA(import_list
->u1
.AddressOfData
);
309 // TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
310 thunk_list
->u1
.Function
=LookupExternalByName(name
, pe_name
->Name
);
316 TRACE("Borland style imports used\n");
317 thunk_list
= (PIMAGE_THUNK_DATA
) RVA(pe_imp
->FirstThunk
);
318 while (thunk_list
->u1
.Ordinal
) {
319 if (IMAGE_SNAP_BY_ORDINAL(thunk_list
->u1
.Ordinal
)) {
321 int ordinal
= IMAGE_ORDINAL(thunk_list
->u1
.Ordinal
);
323 TRACE("--- Ordinal %s.%d\n",name
,ordinal
);
324 thunk_list
->u1
.Function
=LookupExternal(
327 pe_name
=(PIMAGE_IMPORT_BY_NAME
) RVA(thunk_list
->u1
.AddressOfData
);
328 TRACE("--- %s %s.%d\n",
329 pe_name
->Name
,name
,pe_name
->Hint
);
330 thunk_list
->u1
.Function
=LookupExternalByName(
331 name
, pe_name
->Name
);
340 static int calc_vma_size( HMODULE hModule
)
343 IMAGE_SECTION_HEADER
*pe_seg
= PE_SECTIONS(hModule
);
345 TRACE("Dump of segment table\n");
346 TRACE(" Name VSz Vaddr SzRaw Fileadr *Reloc *Lineum #Reloc #Linum Char\n");
347 for (i
= 0; i
< PE_HEADER(hModule
)->FileHeader
.NumberOfSections
; i
++)
349 TRACE("%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
351 pe_seg
->Misc
.VirtualSize
,
352 pe_seg
->VirtualAddress
,
353 pe_seg
->SizeOfRawData
,
354 pe_seg
->PointerToRawData
,
355 pe_seg
->PointerToRelocations
,
356 pe_seg
->PointerToLinenumbers
,
357 pe_seg
->NumberOfRelocations
,
358 pe_seg
->NumberOfLinenumbers
,
359 pe_seg
->Characteristics
);
360 vma_size
=max(vma_size
, pe_seg
->VirtualAddress
+pe_seg
->SizeOfRawData
);
361 vma_size
=max(vma_size
, pe_seg
->VirtualAddress
+pe_seg
->Misc
.VirtualSize
);
367 static void do_relocations( unsigned int load_addr
, IMAGE_BASE_RELOCATION
*r
)
369 int delta
= load_addr
- PE_HEADER(load_addr
)->OptionalHeader
.ImageBase
;
370 int hdelta
= (delta
>> 16) & 0xFFFF;
371 int ldelta
= delta
& 0xFFFF;
376 while(r
->VirtualAddress
)
378 char *page
= (char*) RVA(r
->VirtualAddress
);
379 int count
= (r
->SizeOfBlock
- 8)/2;
381 TRACE_(fixup
)("%x relocations for page %lx\n",
382 count
, r
->VirtualAddress
);
386 int offset
= r
->TypeOffset
[i
] & 0xFFF;
387 int type
= r
->TypeOffset
[i
] >> 12;
388 // TRACE_(fixup)("patching %x type %x\n", offset, type);
391 case IMAGE_REL_BASED_ABSOLUTE
: break;
392 case IMAGE_REL_BASED_HIGH
:
393 *(short*)(page
+offset
) += hdelta
;
395 case IMAGE_REL_BASED_LOW
:
396 *(short*)(page
+offset
) += ldelta
;
398 case IMAGE_REL_BASED_HIGHLOW
:
399 *(int*)(page
+offset
) += delta
;
402 case IMAGE_REL_BASED_HIGHADJ
:
403 FIXME("Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
405 case IMAGE_REL_BASED_MIPS_JMPADDR
:
406 FIXME("Is this a MIPS machine ???\n");
409 FIXME("Unknown fixup type\n");
413 r
= (IMAGE_BASE_RELOCATION
*)((char*)r
+ r
->SizeOfBlock
);
421 /**********************************************************************
423 * Load one PE format DLL/EXE into memory
425 * Unluckily we can't just mmap the sections where we want them, for
426 * (at least) Linux does only support offsets which are page-aligned.
428 * BUT we have to map the whole image anyway, for Win32 programs sometimes
429 * want to access them. (HMODULE32 point to the start of it)
431 HMODULE
PE_LoadImage( int handle
, LPCSTR filename
, WORD
*version
)
436 IMAGE_NT_HEADERS
*nt
;
437 IMAGE_SECTION_HEADER
*pe_sec
;
438 IMAGE_DATA_DIRECTORY
*dir
;
439 BY_HANDLE_FILE_INFORMATION bhfi
;
440 int i
, rawsize
, lowest_va
, vma_size
, file_size
= 0;
441 DWORD load_addr
= 0, aoep
, reloc
= 0;
442 // struct get_read_fd_request *req = get_req_buffer();
443 int unix_handle
= handle
;
444 int page_size
= getpagesize();
447 // if ( GetFileInformationByHandle( hFile, &bhfi ) )
448 // file_size = bhfi.nFileSizeLow;
449 file_size
=lseek(handle
, 0, SEEK_END
);
450 lseek(handle
, 0, SEEK_SET
);
452 //#warning fix CreateFileMappingA
453 mapping
= CreateFileMappingA( handle
, NULL
, PAGE_READONLY
| SEC_COMMIT
,
457 WARN("CreateFileMapping error %ld\n", GetLastError() );
460 // hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
461 hModule
=(HMODULE
)mapping
;
462 // CloseHandle( mapping );
465 WARN("MapViewOfFile error %ld\n", GetLastError() );
468 if ( *(WORD
*)hModule
!=IMAGE_DOS_SIGNATURE
)
470 WARN("%s image doesn't have DOS signature, but 0x%04x\n", filename
,*(WORD
*)hModule
);
474 nt
= PE_HEADER( hModule
);
477 if ( nt
->Signature
!= IMAGE_NT_SIGNATURE
)
479 WARN("%s image doesn't have PE signature, but 0x%08lx\n", filename
, nt
->Signature
);
484 if ( nt
->FileHeader
.Machine
!= IMAGE_FILE_MACHINE_I386
)
486 MESSAGE("Trying to load PE image for unsupported architecture (");
487 switch (nt
->FileHeader
.Machine
)
489 case IMAGE_FILE_MACHINE_UNKNOWN
: MESSAGE("Unknown"); break;
490 case IMAGE_FILE_MACHINE_I860
: MESSAGE("I860"); break;
491 case IMAGE_FILE_MACHINE_R3000
: MESSAGE("R3000"); break;
492 case IMAGE_FILE_MACHINE_R4000
: MESSAGE("R4000"); break;
493 case IMAGE_FILE_MACHINE_R10000
: MESSAGE("R10000"); break;
494 case IMAGE_FILE_MACHINE_ALPHA
: MESSAGE("Alpha"); break;
495 case IMAGE_FILE_MACHINE_POWERPC
: MESSAGE("PowerPC"); break;
496 default: MESSAGE("Unknown-%04x", nt
->FileHeader
.Machine
); break;
503 pe_sec
= PE_SECTIONS( hModule
);
504 rawsize
= 0; lowest_va
= 0x10000;
505 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++)
507 if (lowest_va
> pe_sec
[i
].VirtualAddress
)
508 lowest_va
= pe_sec
[i
].VirtualAddress
;
509 if (pe_sec
[i
].Characteristics
& IMAGE_SCN_CNT_UNINITIALIZED_DATA
)
511 if (pe_sec
[i
].PointerToRawData
+pe_sec
[i
].SizeOfRawData
> rawsize
)
512 rawsize
= pe_sec
[i
].PointerToRawData
+pe_sec
[i
].SizeOfRawData
;
516 if ( file_size
&& file_size
< rawsize
)
518 ERR("PE module is too small (header: %d, filesize: %d), "
519 "probably truncated download?\n",
520 rawsize
, file_size
);
525 aoep
= nt
->OptionalHeader
.AddressOfEntryPoint
;
526 if (aoep
&& (aoep
< lowest_va
))
527 FIXME("VIRUS WARNING: '%s' has an invalid entrypoint (0x%08lx) "
528 "below the first virtual address (0x%08x) "
529 "(possibly infected by Tchernobyl/SpaceFiller virus)!\n",
530 filename
, aoep
, lowest_va
);
533 /* FIXME: Hack! While we don't really support shared sections yet,
534 * this checks for those special cases where the whole DLL
535 * consists only of shared sections and is mapped into the
536 * shared address space > 2GB. In this case, we assume that
537 * the module got mapped at its base address. Thus we simply
538 * check whether the module has actually been mapped there
539 * and use it, if so. This is needed to get Win95 USER32.DLL
540 * to work (until we support shared sections properly).
543 if ( nt
->OptionalHeader
.ImageBase
& 0x80000000 )
545 HMODULE sharedMod
= (HMODULE
)nt
->OptionalHeader
.ImageBase
;
546 IMAGE_NT_HEADERS
*sharedNt
= (PIMAGE_NT_HEADERS
)
547 ( (LPBYTE
)sharedMod
+ ((LPBYTE
)nt
- (LPBYTE
)hModule
) );
549 /* Well, this check is not really comprehensive,
550 but should be good enough for now ... */
551 if ( !IsBadReadPtr( (LPBYTE
)sharedMod
, sizeof(IMAGE_DOS_HEADER
) )
552 && memcmp( (LPBYTE
)sharedMod
, (LPBYTE
)hModule
, sizeof(IMAGE_DOS_HEADER
) ) == 0
553 && !IsBadReadPtr( sharedNt
, sizeof(IMAGE_NT_HEADERS
) )
554 && memcmp( sharedNt
, nt
, sizeof(IMAGE_NT_HEADERS
) ) == 0 )
556 UnmapViewOfFile( (LPVOID
)hModule
);
563 load_addr
= nt
->OptionalHeader
.ImageBase
;
564 vma_size
= calc_vma_size( hModule
);
566 load_addr
= (DWORD
)VirtualAlloc( (void*)load_addr
, vma_size
,
567 MEM_RESERVE
| MEM_COMMIT
,
568 PAGE_EXECUTE_READWRITE
);
572 FIXME("We need to perform base relocations for %s\n", filename
);
573 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_BASERELOC
;
575 reloc
= dir
->VirtualAddress
;
578 FIXME( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
580 (nt
->FileHeader
.Characteristics
&IMAGE_FILE_RELOCS_STRIPPED
)?
581 "stripped during link" : "unknown reason" );
585 /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
586 * really make sure that the *new* base address is also > 2GB.
587 * Some DLLs really check the MSB of the module handle :-/
589 if ( nt
->OptionalHeader
.ImageBase
& 0x80000000 )
590 ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
592 load_addr
= (DWORD
)VirtualAlloc( NULL
, vma_size
,
593 MEM_RESERVE
| MEM_COMMIT
,
594 PAGE_EXECUTE_READWRITE
);
597 "FATAL: Couldn't load module %s (out of memory, %d needed)!\n", filename
, vma_size
);
602 TRACE("Load addr is %lx (base %lx), range %x\n",
603 load_addr
, nt
->OptionalHeader
.ImageBase
, vma_size
);
604 TRACE_(segment
)("Loading %s at %lx, range %x\n",
605 filename
, load_addr
, vma_size
);
609 *(PIMAGE_DOS_HEADER
)load_addr
= *(PIMAGE_DOS_HEADER
)hModule
;
610 *PE_HEADER( load_addr
) = *nt
;
611 memcpy( PE_SECTIONS(load_addr
), PE_SECTIONS(hModule
),
612 sizeof(IMAGE_SECTION_HEADER
) * nt
->FileHeader
.NumberOfSections
);
615 memcpy( load_addr
, hModule
, lowest_fa
);
618 if ((void*)FILE_dommap( handle
, (void *)load_addr
, 0, nt
->OptionalHeader
.SizeOfHeaders
,
619 0, 0, PROT_EXEC
| PROT_WRITE
| PROT_READ
,
620 MAP_PRIVATE
| MAP_FIXED
) != (void*)load_addr
)
622 ERR_(win32
)( "Critical Error: failed to map PE header to necessary address.\n");
627 pe_sec
= PE_SECTIONS( hModule
);
628 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++, pe_sec
++)
630 if (!pe_sec
->SizeOfRawData
|| !pe_sec
->PointerToRawData
) continue;
631 TRACE("%s: mmaping section %s at %p off %lx size %lx/%lx\n",
632 filename
, pe_sec
->Name
, (void*)RVA(pe_sec
->VirtualAddress
),
633 pe_sec
->PointerToRawData
, pe_sec
->SizeOfRawData
, pe_sec
->Misc
.VirtualSize
);
634 if ((void*)FILE_dommap( unix_handle
, (void*)RVA(pe_sec
->VirtualAddress
),
635 0, pe_sec
->SizeOfRawData
, 0, pe_sec
->PointerToRawData
,
636 PROT_EXEC
| PROT_WRITE
| PROT_READ
,
637 MAP_PRIVATE
| MAP_FIXED
) != (void*)RVA(pe_sec
->VirtualAddress
))
640 ERR_(win32
)( "Critical Error: failed to map PE section to necessary address.\n");
643 if ((pe_sec
->SizeOfRawData
< pe_sec
->Misc
.VirtualSize
) &&
644 (pe_sec
->SizeOfRawData
& (page_size
-1)))
646 DWORD end
= (pe_sec
->SizeOfRawData
& ~(page_size
-1)) + page_size
;
647 if (end
> pe_sec
->Misc
.VirtualSize
) end
= pe_sec
->Misc
.VirtualSize
;
648 TRACE("clearing %p - %p\n",
649 RVA(pe_sec
->VirtualAddress
) + pe_sec
->SizeOfRawData
,
650 RVA(pe_sec
->VirtualAddress
) + end
);
651 memset( (char*)RVA(pe_sec
->VirtualAddress
) + pe_sec
->SizeOfRawData
, 0,
652 end
- pe_sec
->SizeOfRawData
);
658 do_relocations( load_addr
, (IMAGE_BASE_RELOCATION
*)RVA(reloc
) );
661 *version
= ( (nt
->OptionalHeader
.MajorSubsystemVersion
& 0xff) << 8 )
662 | (nt
->OptionalHeader
.MinorSubsystemVersion
& 0xff);
665 UnmapViewOfFile( (LPVOID
)hModule
);
666 return (HMODULE
)load_addr
;
669 if (unix_handle
!= -1) close( unix_handle
);
671 VirtualFree( (LPVOID
)load_addr
, 0, MEM_RELEASE
);
672 UnmapViewOfFile( (LPVOID
)hModule
);
676 /**********************************************************************
679 * Create WINE_MODREF structure for loaded HMODULE32, link it into
680 * process modref_list, and fixup all imports.
682 * Note: hModule must point to a correctly allocated PE image,
683 * with base relocations applied; the 16-bit dummy module
684 * associated to hModule must already exist.
686 * Note: This routine must always be called in the context of the
687 * process that is to own the module to be created.
689 WINE_MODREF
*PE_CreateModule( HMODULE hModule
,
690 LPCSTR filename
, DWORD flags
, WIN_BOOL builtin
)
692 DWORD load_addr
= (DWORD
)hModule
;
693 IMAGE_NT_HEADERS
*nt
= PE_HEADER(hModule
);
694 IMAGE_DATA_DIRECTORY
*dir
;
695 IMAGE_IMPORT_DESCRIPTOR
*pe_import
= NULL
;
696 IMAGE_EXPORT_DIRECTORY
*pe_export
= NULL
;
697 IMAGE_RESOURCE_DIRECTORY
*pe_resource
= NULL
;
704 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_EXPORT
;
706 pe_export
= (PIMAGE_EXPORT_DIRECTORY
)RVA(dir
->VirtualAddress
);
708 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_IMPORT
;
710 pe_import
= (PIMAGE_IMPORT_DESCRIPTOR
)RVA(dir
->VirtualAddress
);
712 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_RESOURCE
;
714 pe_resource
= (PIMAGE_RESOURCE_DIRECTORY
)RVA(dir
->VirtualAddress
);
716 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_EXCEPTION
;
717 if (dir
->Size
) FIXME("Exception directory ignored\n" );
719 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_SECURITY
;
720 if (dir
->Size
) FIXME("Security directory ignored\n" );
725 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_DEBUG
;
726 if (dir
->Size
) TRACE("Debug directory ignored\n" );
728 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_COPYRIGHT
;
729 if (dir
->Size
) FIXME("Copyright string ignored\n" );
731 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_GLOBALPTR
;
732 if (dir
->Size
) FIXME("Global Pointer (MIPS) ignored\n" );
736 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
;
737 if (dir
->Size
) FIXME("Load Configuration directory ignored\n" );
739 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT
;
740 if (dir
->Size
) TRACE("Bound Import directory ignored\n" );
742 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_IAT
;
743 if (dir
->Size
) TRACE("Import Address Table directory ignored\n" );
745 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT
;
748 TRACE("Delayed import, stub calls LoadLibrary\n" );
750 * Nothing to do here.
755 * This code is useful to observe what the heck is going on.
758 ImgDelayDescr
*pe_delay
= NULL
;
759 pe_delay
= (PImgDelayDescr
)RVA(dir
->VirtualAddress
);
760 TRACE_(delayhlp
)("pe_delay->grAttrs = %08x\n", pe_delay
->grAttrs
);
761 TRACE_(delayhlp
)("pe_delay->szName = %s\n", pe_delay
->szName
);
762 TRACE_(delayhlp
)("pe_delay->phmod = %08x\n", pe_delay
->phmod
);
763 TRACE_(delayhlp
)("pe_delay->pIAT = %08x\n", pe_delay
->pIAT
);
764 TRACE_(delayhlp
)("pe_delay->pINT = %08x\n", pe_delay
->pINT
);
765 TRACE_(delayhlp
)("pe_delay->pBoundIAT = %08x\n", pe_delay
->pBoundIAT
);
766 TRACE_(delayhlp
)("pe_delay->pUnloadIAT = %08x\n", pe_delay
->pUnloadIAT
);
767 TRACE_(delayhlp
)("pe_delay->dwTimeStamp = %08x\n", pe_delay
->dwTimeStamp
);
772 dir
= nt
->OptionalHeader
.DataDirectory
+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
;
773 if (dir
->Size
) FIXME("Unknown directory 14 ignored\n" );
775 dir
= nt
->OptionalHeader
.DataDirectory
+15;
776 if (dir
->Size
) FIXME("Unknown directory 15 ignored\n" );
781 wm
= (WINE_MODREF
*)HeapAlloc( GetProcessHeap(),
782 HEAP_ZERO_MEMORY
, sizeof(*wm
) );
783 wm
->module
= hModule
;
786 wm
->flags
|= WINE_MODREF_INTERNAL
;
787 if ( flags
& DONT_RESOLVE_DLL_REFERENCES
)
788 wm
->flags
|= WINE_MODREF_DONT_RESOLVE_REFS
;
789 if ( flags
& LOAD_LIBRARY_AS_DATAFILE
)
790 wm
->flags
|= WINE_MODREF_LOAD_AS_DATAFILE
;
792 wm
->type
= MODULE32_PE
;
793 wm
->binfmt
.pe
.pe_export
= pe_export
;
794 wm
->binfmt
.pe
.pe_import
= pe_import
;
795 wm
->binfmt
.pe
.pe_resource
= pe_resource
;
796 wm
->binfmt
.pe
.tlsindex
= -1;
798 wm
->filename
= malloc(strlen(filename
)+1);
799 strcpy(wm
->filename
, filename
);
800 wm
->modname
= strrchr( wm
->filename
, '\\' );
801 if (!wm
->modname
) wm
->modname
= wm
->filename
;
805 dump_exports( hModule
);
810 && !( wm
->flags
& WINE_MODREF_LOAD_AS_DATAFILE
)
811 && !( wm
->flags
& WINE_MODREF_DONT_RESOLVE_REFS
)
812 && fixup_imports( wm
) )
814 /* remove entry from modref chain */
823 /******************************************************************************
824 * The PE Library Loader frontend.
825 * FIXME: handle the flags.
827 WINE_MODREF
*PE_LoadLibraryExA (LPCSTR name
, DWORD flags
)
836 strncpy(filename
, name
, sizeof(filename
));
837 hFile
=open(filename
, O_RDONLY
);
842 hModule32
= PE_LoadImage( hFile
, filename
, &version
);
845 SetLastError( ERROR_OUTOFMEMORY
);
849 if ( !(wm
= PE_CreateModule( hModule32
, filename
, flags
, FALSE
)) )
851 ERR( "can't load %s\n", filename
);
852 SetLastError( ERROR_OUTOFMEMORY
);
856 //printf("^^^^^^^^^^^^^^^^Alloc VM1 %p\n", wm);
861 /*****************************************************************************
864 * Unload the library unmapping the image and freeing the modref structure.
866 void PE_UnloadLibrary(WINE_MODREF
*wm
)
868 TRACE(" unloading %s\n", wm
->filename
);
872 if (wm
->short_filename
)
873 free(wm
->short_filename
);
874 HeapFree( GetProcessHeap(), 0, wm
->deps
);
875 VirtualFree( (LPVOID
)wm
->module
, 0, MEM_RELEASE
);
876 HeapFree( GetProcessHeap(), 0, wm
);
877 //printf("^^^^^^^^^^^^^^^^Free VM1 %p\n", wm);
880 /*****************************************************************************
881 * Load the PE main .EXE. All other loading is done by PE_LoadLibraryExA
882 * FIXME: this function should use PE_LoadLibraryExA, but currently can't
883 * due to the PROCESS_Create stuff.
888 * This is a dirty hack.
889 * The win32 DLLs contain an alloca routine, that first probes the soon
890 * to be allocated new memory *below* the current stack pointer in 4KByte
891 * increments. After the mem probing below the current %esp, the stack
892 * pointer is finally decremented to make room for the "alloca"ed memory.
893 * Maybe the probing code is intended to extend the stack on a windows box.
894 * Anyway, the linux kernel does *not* extend the stack by simply accessing
895 * memory below %esp; it segfaults.
896 * The extend_stack_for_dll_alloca() routine just preallocates a big chunk
897 * of memory on the stack, for use by the DLLs alloca routine.
899 static void extend_stack_for_dll_alloca(void)
902 void* mem
=alloca(0x20000);
907 /* Called if the library is loaded or freed.
908 * NOTE: if a thread attaches a DLL, the current thread will only do
909 * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
912 WIN_BOOL
PE_InitDLL( WINE_MODREF
*wm
, DWORD type
, LPVOID lpReserved
)
914 WIN_BOOL retv
= TRUE
;
915 assert( wm
->type
== MODULE32_PE
);
918 if ((PE_HEADER(wm
->module
)->FileHeader
.Characteristics
& IMAGE_FILE_DLL
) &&
919 (PE_HEADER(wm
->module
)->OptionalHeader
.AddressOfEntryPoint
)
922 entry
= (void*)PE_FindExportedFunction(wm
, "DllMain", 0);
924 entry
= (void*)RVA_PTR( wm
->module
,OptionalHeader
.AddressOfEntryPoint
);
926 TRACE_(relay
)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
927 entry
, wm
->module
, type
, lpReserved
);
930 TRACE("Entering DllMain(");
933 case DLL_PROCESS_DETACH
:
934 TRACE("DLL_PROCESS_DETACH) ");
936 case DLL_PROCESS_ATTACH
:
937 TRACE("DLL_PROCESS_ATTACH) ");
939 case DLL_THREAD_DETACH
:
940 TRACE("DLL_THREAD_DETACH) ");
942 case DLL_THREAD_ATTACH
:
943 TRACE("DLL_THREAD_ATTACH) ");
946 TRACE("for %s\n", wm
->filename
);
947 extend_stack_for_dll_alloca();
948 retv
= entry( wm
->module
, type
, lpReserved
);
955 _fixup_address(PIMAGE_OPTIONAL_HEADER opt
,int delta
,LPVOID addr
) {
956 if ( ((DWORD
)addr
>opt
->ImageBase
) &&
957 ((DWORD
)addr
<opt
->ImageBase
+opt
->SizeOfImage
)
960 return (LPVOID
)(((DWORD
)addr
)+delta
);