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
12 * Modified for use with MPlayer, detailed CVS changelog at
13 * http://www.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/
18 * Before you start changing something in this file be aware of the following:
20 * - There are several functions called recursively. In a very subtle and
21 * obscure way. DLLs can reference each other recursively etc.
22 * - If you want to enhance, speed up or clean up something in here, think
23 * twice WHY it is implemented in that strange way. There is usually a reason.
24 * Though sometimes it might just be lazyness ;)
25 * - In PE_MapImage, right before fixup_imports() all external and internal
26 * state MUST be correct since this function can be called with the SAME image
27 * AGAIN. (Thats recursion for you.) That means MODREF.module and
29 * - Sometimes, we can't use Linux mmap() to mmap() the images directly.
31 * The problem is, that there is not direct 1:1 mapping from a diskimage and
32 * a memoryimage. The headers at the start are mapped linear, but the sections
33 * are not. Older x86 pe binaries are 512 byte aligned in file and 4096 byte
34 * aligned in memory. Linux likes them 4096 byte aligned in memory (due to
35 * x86 pagesize, this cannot be fixed without a rather large kernel rewrite)
36 * and 'blocksize' file-aligned (offsets). Since we have 512/1024/2048 (CDROM)
37 * and other byte blocksizes, we can't always do this. We *can* do this for
38 * newer pe binaries produced by MSVC 5 and later, since they are also aligned
39 * to 4096 byte boundaries on disk.
49 #include <sys/types.h>
52 #ifdef HAVE_SYS_MMAN_H
55 #include "wine/windef.h"
56 #include "wine/winbase.h"
57 #include "wine/winerror.h"
58 #include "wine/heap.h"
59 #include "wine/pe_image.h"
60 #include "wine/module.h"
61 #include "wine/debugtools.h"
65 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
67 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
69 extern void* LookupExternal(const char* library, int ordinal);
70 extern void* LookupExternalByName(const char* library, const char* name);
72 static void dump_exports( HMODULE hModule )
77 u_long *function,*functions;
79 unsigned int load_addr = hModule;
81 DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
82 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
83 DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
84 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
85 IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
87 Module = (char*)RVA(pe_exports->Name);
88 TRACE("*******EXPORT DATA*******\n");
89 TRACE("Module name is %s, %ld functions, %ld names\n",
90 Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
92 ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
93 functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
94 name=(u_char**) RVA(pe_exports->AddressOfNames);
96 TRACE(" Ord RVA Addr Name\n" );
97 for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
99 if (!*function) continue;
102 DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
104 for (j = 0; j < pe_exports->NumberOfNames; j++)
107 DPRINTF( " %s", (char*)RVA(name[j]) );
110 if ((*function >= rva_start) && (*function <= rva_end))
111 DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
117 /* Look up the specified function or ordinal in the exportlist:
119 * - look up the name in the Name list.
120 * - look up the ordinal with that index.
121 * - use the ordinal as offset into the functionlist
122 * If it is a ordinal:
123 * - use ordinal-pe_export->Base as offset into the functionlist
125 FARPROC PE_FindExportedFunction(
133 const char *ename = NULL;
135 PE_MODREF *pem = &(wm->binfmt.pe);
136 IMAGE_EXPORT_DIRECTORY *exports = pem->pe_export;
137 unsigned int load_addr = wm->module;
138 u_long rva_start, rva_end, addr;
141 if (HIWORD(funcName))
142 TRACE("(%s)\n",funcName);
144 TRACE("(%d)\n",(int)funcName);
146 /* Not a fatal problem, some apps do
147 * GetProcAddress(0,"RegisterPenApp") which triggers this
150 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,pem);
153 ordinals= (u_short*) RVA(exports->AddressOfNameOrdinals);
154 function= (u_long*) RVA(exports->AddressOfFunctions);
155 name = (u_char **) RVA(exports->AddressOfNames);
157 rva_start = PE_HEADER(wm->module)->OptionalHeader
158 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
159 rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
160 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
162 if (HIWORD(funcName))
165 int min = 0, max = exports->NumberOfNames - 1;
168 int res, pos = (min + max) / 2;
169 ename = (const char*) RVA(name[pos]);
170 if (!(res = strcmp( ename, funcName )))
172 ordinal = ordinals[pos];
175 if (res > 0) max = pos - 1;
179 for (i = 0; i < exports->NumberOfNames; i++)
181 ename = (const char*) RVA(name[i]);
182 if (!strcmp( ename, funcName ))
184 ERR( "%s.%s required a linear search\n", wm->modname, funcName );
185 ordinal = ordinals[i];
193 ordinal = LOWORD(funcName) - exports->Base;
196 for (i = 0; i < exports->NumberOfNames; i++)
197 if (ordinals[i] == ordinal)
199 ename = RVA(name[i]);
206 if (ordinal >= exports->NumberOfFunctions)
208 TRACE(" ordinal %ld out of range!\n", ordinal + exports->Base );
211 addr = function[ordinal];
212 if (!addr) return NULL;
213 if ((addr < rva_start) || (addr >= rva_end))
215 FARPROC proc = RVA(addr);
218 if (!ename) ename = "@";
219 // proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
220 TRACE("SNOOP_GetProcAddress n/a\n");
228 char *forward = RVA(addr);
230 char *end = strchr(forward, '.');
232 if (!end) return NULL;
233 if (end - forward >= sizeof(module)) return NULL;
234 memcpy( module, forward, end - forward );
235 module[end-forward] = 0;
236 if (!(wm = MODULE_FindModule( module )))
238 ERR("module not found for forward '%s'\n", forward );
241 return MODULE_GetProcAddress( wm->module, end + 1, snoop );
245 static DWORD fixup_imports( WINE_MODREF *wm )
247 IMAGE_IMPORT_DESCRIPTOR *pe_imp;
249 unsigned int load_addr = wm->module;
250 int i,characteristics_detection=1;
253 assert(wm->type==MODULE32_PE);
254 pem = &(wm->binfmt.pe);
256 modname = (char*) RVA(pem->pe_export->Name);
258 modname = "<unknown>";
261 TRACE("Dumping imports list\n");
264 pe_imp = pem->pe_import;
265 if (!pe_imp) return 0;
267 /* We assume that we have at least one import with !0 characteristics and
268 * detect broken imports with all characteristsics 0 (notably Borland) and
269 * switch the detection off for them.
271 for (i = 0; pe_imp->Name ; pe_imp++) {
272 if (!i && !pe_imp->u.Characteristics)
273 characteristics_detection = 0;
274 if (characteristics_detection && !pe_imp->u.Characteristics)
282 wm->deps = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
284 /* load the imported modules. They are automatically
285 * added to the modref list of the process.
288 for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) {
290 IMAGE_IMPORT_BY_NAME *pe_name;
291 PIMAGE_THUNK_DATA import_list,thunk_list;
292 char *name = (char *) RVA(pe_imp->Name);
294 if (characteristics_detection && !pe_imp->u.Characteristics)
297 //#warning FIXME: here we should fill imports
298 TRACE("Loading imports for %s.dll\n", name);
300 if (pe_imp->u.OriginalFirstThunk != 0) {
301 TRACE("Microsoft style imports used\n");
302 import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
303 thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
305 while (import_list->u1.Ordinal) {
306 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
307 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
309 // TRACE("--- Ordinal %s,%d\n", name, ordinal);
311 thunk_list->u1.Function=LookupExternal(name, ordinal);
313 pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
314 // TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
315 thunk_list->u1.Function=LookupExternalByName(name, pe_name->Name);
321 TRACE("Borland style imports used\n");
322 thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
323 while (thunk_list->u1.Ordinal) {
324 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
326 int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
328 TRACE("--- Ordinal %s.%d\n",name,ordinal);
329 thunk_list->u1.Function=LookupExternal(
332 pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
333 TRACE("--- %s %s.%d\n",
334 pe_name->Name,name,pe_name->Hint);
335 thunk_list->u1.Function=LookupExternalByName(
336 name, pe_name->Name);
345 static int calc_vma_size( HMODULE hModule )
348 IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
350 TRACE("Dump of segment table\n");
351 TRACE(" Name VSz Vaddr SzRaw Fileadr *Reloc *Lineum #Reloc #Linum Char\n");
352 for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
354 TRACE("%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
356 pe_seg->Misc.VirtualSize,
357 pe_seg->VirtualAddress,
358 pe_seg->SizeOfRawData,
359 pe_seg->PointerToRawData,
360 pe_seg->PointerToRelocations,
361 pe_seg->PointerToLinenumbers,
362 pe_seg->NumberOfRelocations,
363 pe_seg->NumberOfLinenumbers,
364 pe_seg->Characteristics);
365 vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
366 vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize);
372 static void do_relocations( unsigned int load_addr, IMAGE_BASE_RELOCATION *r )
374 int delta = load_addr - PE_HEADER(load_addr)->OptionalHeader.ImageBase;
375 int hdelta = (delta >> 16) & 0xFFFF;
376 int ldelta = delta & 0xFFFF;
381 while(r->VirtualAddress)
383 char *page = (char*) RVA(r->VirtualAddress);
384 int count = (r->SizeOfBlock - 8)/2;
386 TRACE_(fixup)("%x relocations for page %lx\n",
387 count, r->VirtualAddress);
391 int offset = r->TypeOffset[i] & 0xFFF;
392 int type = r->TypeOffset[i] >> 12;
393 // TRACE_(fixup)("patching %x type %x\n", offset, type);
396 case IMAGE_REL_BASED_ABSOLUTE: break;
397 case IMAGE_REL_BASED_HIGH:
398 *(short*)(page+offset) += hdelta;
400 case IMAGE_REL_BASED_LOW:
401 *(short*)(page+offset) += ldelta;
403 case IMAGE_REL_BASED_HIGHLOW:
404 *(int*)(page+offset) += delta;
407 case IMAGE_REL_BASED_HIGHADJ:
408 FIXME("Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
410 case IMAGE_REL_BASED_MIPS_JMPADDR:
411 FIXME("Is this a MIPS machine ???\n");
414 FIXME("Unknown fixup type\n");
418 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
426 /**********************************************************************
428 * Load one PE format DLL/EXE into memory
430 * Unluckily we can't just mmap the sections where we want them, for
431 * (at least) Linux does only support offsets which are page-aligned.
433 * BUT we have to map the whole image anyway, for Win32 programs sometimes
434 * want to access them. (HMODULE32 point to the start of it)
436 HMODULE PE_LoadImage( int handle, LPCSTR filename, WORD *version )
441 IMAGE_NT_HEADERS *nt;
442 IMAGE_SECTION_HEADER *pe_sec;
443 IMAGE_DATA_DIRECTORY *dir;
444 BY_HANDLE_FILE_INFORMATION bhfi;
445 int i, rawsize, lowest_va, vma_size, file_size = 0;
446 DWORD load_addr = 0, aoep, reloc = 0;
447 // struct get_read_fd_request *req = get_req_buffer();
448 int unix_handle = handle;
449 int page_size = getpagesize();
452 // if ( GetFileInformationByHandle( hFile, &bhfi ) )
453 // file_size = bhfi.nFileSizeLow;
454 file_size=lseek(handle, 0, SEEK_END);
455 lseek(handle, 0, SEEK_SET);
457 //#warning fix CreateFileMappingA
458 mapping = CreateFileMappingA( handle, NULL, PAGE_READONLY | SEC_COMMIT,
462 WARN("CreateFileMapping error %ld\n", GetLastError() );
465 // hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
466 hModule=(HMODULE)mapping;
467 // CloseHandle( mapping );
470 WARN("MapViewOfFile error %ld\n", GetLastError() );
473 if ( *(WORD*)hModule !=IMAGE_DOS_SIGNATURE)
475 WARN("%s image doesn't have DOS signature, but 0x%04x\n", filename,*(WORD*)hModule);
479 nt = PE_HEADER( hModule );
482 if ( nt->Signature != IMAGE_NT_SIGNATURE )
484 WARN("%s image doesn't have PE signature, but 0x%08lx\n", filename, nt->Signature );
489 if ( nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386 )
491 MESSAGE("Trying to load PE image for unsupported architecture (");
492 switch (nt->FileHeader.Machine)
494 case IMAGE_FILE_MACHINE_UNKNOWN: MESSAGE("Unknown"); break;
495 case IMAGE_FILE_MACHINE_I860: MESSAGE("I860"); break;
496 case IMAGE_FILE_MACHINE_R3000: MESSAGE("R3000"); break;
497 case IMAGE_FILE_MACHINE_R4000: MESSAGE("R4000"); break;
498 case IMAGE_FILE_MACHINE_R10000: MESSAGE("R10000"); break;
499 case IMAGE_FILE_MACHINE_ALPHA: MESSAGE("Alpha"); break;
500 case IMAGE_FILE_MACHINE_POWERPC: MESSAGE("PowerPC"); break;
501 default: MESSAGE("Unknown-%04x", nt->FileHeader.Machine); break;
508 pe_sec = PE_SECTIONS( hModule );
509 rawsize = 0; lowest_va = 0x10000;
510 for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
512 if (lowest_va > pe_sec[i].VirtualAddress)
513 lowest_va = pe_sec[i].VirtualAddress;
514 if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
516 if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize)
517 rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData;
521 if ( file_size && file_size < rawsize )
523 ERR("PE module is too small (header: %d, filesize: %d), "
524 "probably truncated download?\n",
525 rawsize, file_size );
530 aoep = nt->OptionalHeader.AddressOfEntryPoint;
531 if (aoep && (aoep < lowest_va))
532 FIXME("VIRUS WARNING: '%s' has an invalid entrypoint (0x%08lx) "
533 "below the first virtual address (0x%08x) "
534 "(possibly infected by Tchernobyl/SpaceFiller virus)!\n",
535 filename, aoep, lowest_va );
538 /* FIXME: Hack! While we don't really support shared sections yet,
539 * this checks for those special cases where the whole DLL
540 * consists only of shared sections and is mapped into the
541 * shared address space > 2GB. In this case, we assume that
542 * the module got mapped at its base address. Thus we simply
543 * check whether the module has actually been mapped there
544 * and use it, if so. This is needed to get Win95 USER32.DLL
545 * to work (until we support shared sections properly).
548 if ( nt->OptionalHeader.ImageBase & 0x80000000 )
550 HMODULE sharedMod = (HMODULE)nt->OptionalHeader.ImageBase;
551 IMAGE_NT_HEADERS *sharedNt = (PIMAGE_NT_HEADERS)
552 ( (LPBYTE)sharedMod + ((LPBYTE)nt - (LPBYTE)hModule) );
554 /* Well, this check is not really comprehensive,
555 but should be good enough for now ... */
556 if ( !IsBadReadPtr( (LPBYTE)sharedMod, sizeof(IMAGE_DOS_HEADER) )
557 && memcmp( (LPBYTE)sharedMod, (LPBYTE)hModule, sizeof(IMAGE_DOS_HEADER) ) == 0
558 && !IsBadReadPtr( sharedNt, sizeof(IMAGE_NT_HEADERS) )
559 && memcmp( sharedNt, nt, sizeof(IMAGE_NT_HEADERS) ) == 0 )
561 UnmapViewOfFile( (LPVOID)hModule );
568 load_addr = nt->OptionalHeader.ImageBase;
569 vma_size = calc_vma_size( hModule );
571 load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
572 MEM_RESERVE | MEM_COMMIT,
573 PAGE_EXECUTE_READWRITE );
577 FIXME("We need to perform base relocations for %s\n", filename);
578 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BASERELOC;
580 reloc = dir->VirtualAddress;
583 FIXME( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
585 (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
586 "stripped during link" : "unknown reason" );
590 /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
591 * really make sure that the *new* base address is also > 2GB.
592 * Some DLLs really check the MSB of the module handle :-/
594 if ( nt->OptionalHeader.ImageBase & 0x80000000 )
595 ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
597 load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
598 MEM_RESERVE | MEM_COMMIT,
599 PAGE_EXECUTE_READWRITE );
602 "FATAL: Couldn't load module %s (out of memory, %d needed)!\n", filename, vma_size);
607 TRACE("Load addr is %lx (base %lx), range %x\n",
608 load_addr, nt->OptionalHeader.ImageBase, vma_size );
609 TRACE_(segment)("Loading %s at %lx, range %x\n",
610 filename, load_addr, vma_size );
614 *(PIMAGE_DOS_HEADER)load_addr = *(PIMAGE_DOS_HEADER)hModule;
615 *PE_HEADER( load_addr ) = *nt;
616 memcpy( PE_SECTIONS(load_addr), PE_SECTIONS(hModule),
617 sizeof(IMAGE_SECTION_HEADER) * nt->FileHeader.NumberOfSections );
620 memcpy( load_addr, hModule, lowest_fa );
623 if ((void*)FILE_dommap( handle, (void *)load_addr, 0, nt->OptionalHeader.SizeOfHeaders,
624 0, 0, PROT_EXEC | PROT_WRITE | PROT_READ,
625 MAP_PRIVATE | MAP_FIXED ) != (void*)load_addr)
627 ERR_(win32)( "Critical Error: failed to map PE header to necessary address.\n");
632 pe_sec = PE_SECTIONS( hModule );
633 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, pe_sec++)
635 if (!pe_sec->SizeOfRawData || !pe_sec->PointerToRawData) continue;
636 TRACE("%s: mmaping section %s at %p off %lx size %lx/%lx\n",
637 filename, pe_sec->Name, (void*)RVA(pe_sec->VirtualAddress),
638 pe_sec->PointerToRawData, pe_sec->SizeOfRawData, pe_sec->Misc.VirtualSize );
639 if ((void*)FILE_dommap( unix_handle, (void*)RVA(pe_sec->VirtualAddress),
640 0, pe_sec->SizeOfRawData, 0, pe_sec->PointerToRawData,
641 PROT_EXEC | PROT_WRITE | PROT_READ,
642 MAP_PRIVATE | MAP_FIXED ) != (void*)RVA(pe_sec->VirtualAddress))
645 ERR_(win32)( "Critical Error: failed to map PE section to necessary address.\n");
648 if ((pe_sec->SizeOfRawData < pe_sec->Misc.VirtualSize) &&
649 (pe_sec->SizeOfRawData & (page_size-1)))
651 DWORD end = (pe_sec->SizeOfRawData & ~(page_size-1)) + page_size;
652 if (end > pe_sec->Misc.VirtualSize) end = pe_sec->Misc.VirtualSize;
653 TRACE("clearing %p - %p\n",
654 RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData,
655 RVA(pe_sec->VirtualAddress) + end );
656 memset( (char*)RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData, 0,
657 end - pe_sec->SizeOfRawData );
663 do_relocations( load_addr, (IMAGE_BASE_RELOCATION *)RVA(reloc) );
666 *version = ( (nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 )
667 | (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
670 UnmapViewOfFile( (LPVOID)hModule );
671 return (HMODULE)load_addr;
674 if (unix_handle != -1) close( unix_handle );
676 VirtualFree( (LPVOID)load_addr, 0, MEM_RELEASE );
677 UnmapViewOfFile( (LPVOID)hModule );
681 /**********************************************************************
684 * Create WINE_MODREF structure for loaded HMODULE32, link it into
685 * process modref_list, and fixup all imports.
687 * Note: hModule must point to a correctly allocated PE image,
688 * with base relocations applied; the 16-bit dummy module
689 * associated to hModule must already exist.
691 * Note: This routine must always be called in the context of the
692 * process that is to own the module to be created.
694 WINE_MODREF *PE_CreateModule( HMODULE hModule,
695 LPCSTR filename, DWORD flags, WIN_BOOL builtin )
697 DWORD load_addr = (DWORD)hModule;
698 IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
699 IMAGE_DATA_DIRECTORY *dir;
700 IMAGE_IMPORT_DESCRIPTOR *pe_import = NULL;
701 IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
702 IMAGE_RESOURCE_DIRECTORY *pe_resource = NULL;
709 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
711 pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
713 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IMPORT;
715 pe_import = (PIMAGE_IMPORT_DESCRIPTOR)RVA(dir->VirtualAddress);
717 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE;
719 pe_resource = (PIMAGE_RESOURCE_DIRECTORY)RVA(dir->VirtualAddress);
721 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
722 if (dir->Size) FIXME("Exception directory ignored\n" );
724 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
725 if (dir->Size) FIXME("Security directory ignored\n" );
730 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DEBUG;
731 if (dir->Size) TRACE("Debug directory ignored\n" );
733 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COPYRIGHT;
734 if (dir->Size) FIXME("Copyright string ignored\n" );
736 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
737 if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
741 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
742 if (dir->Size) FIXME("Load Configuration directory ignored\n" );
744 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
745 if (dir->Size) TRACE("Bound Import directory ignored\n" );
747 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
748 if (dir->Size) TRACE("Import Address Table directory ignored\n" );
750 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
753 TRACE("Delayed import, stub calls LoadLibrary\n" );
755 * Nothing to do here.
760 * This code is useful to observe what the heck is going on.
763 ImgDelayDescr *pe_delay = NULL;
764 pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
765 TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
766 TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
767 TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
768 TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
769 TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
770 TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
771 TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
772 TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
777 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
778 if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
780 dir = nt->OptionalHeader.DataDirectory+15;
781 if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
786 wm = (WINE_MODREF *)HeapAlloc( GetProcessHeap(),
787 HEAP_ZERO_MEMORY, sizeof(*wm) );
788 wm->module = hModule;
791 wm->flags |= WINE_MODREF_INTERNAL;
792 if ( flags & DONT_RESOLVE_DLL_REFERENCES )
793 wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
794 if ( flags & LOAD_LIBRARY_AS_DATAFILE )
795 wm->flags |= WINE_MODREF_LOAD_AS_DATAFILE;
797 wm->type = MODULE32_PE;
798 wm->binfmt.pe.pe_export = pe_export;
799 wm->binfmt.pe.pe_import = pe_import;
800 wm->binfmt.pe.pe_resource = pe_resource;
801 wm->binfmt.pe.tlsindex = -1;
803 wm->filename = malloc(strlen(filename)+1);
804 strcpy(wm->filename, filename );
805 wm->modname = strrchr( wm->filename, '\\' );
806 if (!wm->modname) wm->modname = wm->filename;
810 dump_exports( hModule );
815 && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE )
816 && !( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
817 && fixup_imports( wm ) )
819 /* remove entry from modref chain */
828 /******************************************************************************
829 * The PE Library Loader frontend.
830 * FIXME: handle the flags.
832 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
841 strncpy(filename, name, sizeof(filename));
842 hFile=open(filename, O_RDONLY);
847 hModule32 = PE_LoadImage( hFile, filename, &version );
850 SetLastError( ERROR_OUTOFMEMORY );
854 if ( !(wm = PE_CreateModule( hModule32, filename, flags, FALSE )) )
856 ERR( "can't load %s\n", filename );
857 SetLastError( ERROR_OUTOFMEMORY );
861 //printf("^^^^^^^^^^^^^^^^Alloc VM1 %p\n", wm);
866 /*****************************************************************************
869 * Unload the library unmapping the image and freeing the modref structure.
871 void PE_UnloadLibrary(WINE_MODREF *wm)
873 TRACE(" unloading %s\n", wm->filename);
877 if (wm->short_filename)
878 free(wm->short_filename);
879 HeapFree( GetProcessHeap(), 0, wm->deps );
880 VirtualFree( (LPVOID)wm->module, 0, MEM_RELEASE );
881 HeapFree( GetProcessHeap(), 0, wm );
882 //printf("^^^^^^^^^^^^^^^^Free VM1 %p\n", wm);
885 /*****************************************************************************
886 * Load the PE main .EXE. All other loading is done by PE_LoadLibraryExA
887 * FIXME: this function should use PE_LoadLibraryExA, but currently can't
888 * due to the PROCESS_Create stuff.
893 * This is a dirty hack.
894 * The win32 DLLs contain an alloca routine, that first probes the soon
895 * to be allocated new memory *below* the current stack pointer in 4KByte
896 * increments. After the mem probing below the current %esp, the stack
897 * pointer is finally decremented to make room for the "alloca"ed memory.
898 * Maybe the probing code is intended to extend the stack on a windows box.
899 * Anyway, the linux kernel does *not* extend the stack by simply accessing
900 * memory below %esp; it segfaults.
901 * The extend_stack_for_dll_alloca() routine just preallocates a big chunk
902 * of memory on the stack, for use by the DLLs alloca routine.
903 * Added the noinline attribute as e.g. gcc 3.2.2 inlines this function
904 * in a way that breaks it.
906 static void __attribute__((noinline)) extend_stack_for_dll_alloca(void)
908 #if !defined(__FreeBSD__) && !defined(__DragonFly__)
909 volatile int* mem=alloca(0x20000);
914 /* Called if the library is loaded or freed.
915 * NOTE: if a thread attaches a DLL, the current thread will only do
916 * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
919 WIN_BOOL PE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
921 WIN_BOOL retv = TRUE;
922 assert( wm->type == MODULE32_PE );
925 if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
926 (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
929 entry = (void*)PE_FindExportedFunction(wm, "DllMain", 0);
931 entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
933 TRACE_(relay)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
934 entry, wm->module, type, lpReserved );
937 TRACE("Entering DllMain(");
940 case DLL_PROCESS_DETACH:
941 TRACE("DLL_PROCESS_DETACH) ");
943 case DLL_PROCESS_ATTACH:
944 TRACE("DLL_PROCESS_ATTACH) ");
946 case DLL_THREAD_DETACH:
947 TRACE("DLL_THREAD_DETACH) ");
949 case DLL_THREAD_ATTACH:
950 TRACE("DLL_THREAD_ATTACH) ");
953 TRACE("for %s\n", wm->filename);
954 extend_stack_for_dll_alloca();
955 retv = entry( wm->module, type, lpReserved );
962 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
963 if ( ((DWORD)addr>opt->ImageBase) &&
964 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
967 return (LPVOID)(((DWORD)addr)+delta);