Allow the size of bitmaps to be changed after toolbar buttons have
[wine.git] / loader / pe_image.c
blob0b7b68e90eb814c57fa52e19822af03803af5411
1 /*
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
9 * make that:
10 * ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP
12 /* Notes:
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
23 * NE_MODULE.module32.
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.
37 #include "config.h"
39 #include <errno.h>
40 #include <assert.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <unistd.h>
44 #include <sys/types.h>
45 #include <sys/stat.h>
46 #ifdef HAVE_SYS_MMAN_H
47 #include <sys/mman.h>
48 #endif
49 #include "windef.h"
50 #include "winbase.h"
51 #include "wine/winbase16.h"
52 #include "winerror.h"
53 #include "callback.h"
54 #include "file.h"
55 #include "heap.h"
56 #include "neexe.h"
57 #include "process.h"
58 #include "thread.h"
59 #include "pe_image.h"
60 #include "module.h"
61 #include "global.h"
62 #include "task.h"
63 #include "snoop.h"
64 #include "server.h"
65 #include "debugtools.h"
67 DEFAULT_DEBUG_CHANNEL(win32);
68 DECLARE_DEBUG_CHANNEL(delayhlp);
69 DECLARE_DEBUG_CHANNEL(fixup);
70 DECLARE_DEBUG_CHANNEL(module);
71 DECLARE_DEBUG_CHANNEL(relay);
72 DECLARE_DEBUG_CHANNEL(segment);
75 /* convert PE image VirtualAddress to Real Address */
76 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
78 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
80 void dump_exports( HMODULE hModule )
82 char *Module;
83 int i, j;
84 u_short *ordinal;
85 u_long *function,*functions;
86 u_char **name;
87 unsigned int load_addr = hModule;
89 DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
90 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
91 DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
92 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
93 IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
95 Module = (char*)RVA(pe_exports->Name);
96 TRACE("*******EXPORT DATA*******\n");
97 TRACE("Module name is %s, %ld functions, %ld names\n",
98 Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
100 ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
101 functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
102 name=(u_char**) RVA(pe_exports->AddressOfNames);
104 TRACE(" Ord RVA Addr Name\n" );
105 for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
107 if (!*function) continue; /* No such function */
108 if (TRACE_ON(win32))
110 DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
111 /* Check if we have a name for it */
112 for (j = 0; j < pe_exports->NumberOfNames; j++)
113 if (ordinal[j] == i)
115 DPRINTF( " %s", (char*)RVA(name[j]) );
116 break;
118 if ((*function >= rva_start) && (*function <= rva_end))
119 DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
120 DPRINTF("\n");
125 /* Look up the specified function or ordinal in the exportlist:
126 * If it is a string:
127 * - look up the name in the Name list.
128 * - look up the ordinal with that index.
129 * - use the ordinal as offset into the functionlist
130 * If it is a ordinal:
131 * - use ordinal-pe_export->Base as offset into the functionlist
133 FARPROC PE_FindExportedFunction(
134 WINE_MODREF *wm, /* [in] WINE modreference */
135 LPCSTR funcName, /* [in] function name */
136 BOOL snoop )
138 u_short * ordinals;
139 u_long * function;
140 u_char ** name, *ename = NULL;
141 int i, ordinal;
142 PE_MODREF *pem = &(wm->binfmt.pe);
143 IMAGE_EXPORT_DIRECTORY *exports = pem->pe_export;
144 unsigned int load_addr = wm->module;
145 u_long rva_start, rva_end, addr;
146 char * forward;
148 if (HIWORD(funcName))
149 TRACE("(%s)\n",funcName);
150 else
151 TRACE("(%d)\n",(int)funcName);
152 if (!exports) {
153 /* Not a fatal problem, some apps do
154 * GetProcAddress(0,"RegisterPenApp") which triggers this
155 * case.
157 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,pem);
158 return NULL;
160 ordinals= (u_short*) RVA(exports->AddressOfNameOrdinals);
161 function= (u_long*) RVA(exports->AddressOfFunctions);
162 name = (u_char **) RVA(exports->AddressOfNames);
163 forward = NULL;
164 rva_start = PE_HEADER(wm->module)->OptionalHeader
165 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
166 rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
167 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
169 if (HIWORD(funcName))
171 /* first try a binary search */
172 int min = 0, max = exports->NumberOfNames - 1;
173 while (min <= max)
175 int res, pos = (min + max) / 2;
176 ename = RVA(name[pos]);
177 if (!(res = strcmp( ename, funcName )))
179 ordinal = ordinals[pos];
180 goto found;
182 if (res > 0) max = pos - 1;
183 else min = pos + 1;
185 /* now try a linear search in case the names aren't sorted properly */
186 for (i = 0; i < exports->NumberOfNames; i++)
188 ename = RVA(name[i]);
189 if (!strcmp( ename, funcName ))
191 ERR( "%s.%s required a linear search\n", wm->modname, funcName );
192 ordinal = ordinals[i];
193 goto found;
196 return NULL;
198 else /* find by ordinal */
200 ordinal = LOWORD(funcName) - exports->Base;
201 if (snoop && name) /* need to find a name for it */
203 for (i = 0; i < exports->NumberOfNames; i++)
204 if (ordinals[i] == ordinal)
206 ename = RVA(name[i]);
207 break;
212 found:
213 if (ordinal >= exports->NumberOfFunctions)
215 TRACE(" ordinal %ld out of range!\n", ordinal + exports->Base );
216 return NULL;
218 addr = function[ordinal];
219 if (!addr) return NULL;
220 if ((addr < rva_start) || (addr >= rva_end))
222 FARPROC proc = RVA(addr);
223 if (snoop)
225 if (!ename) ename = "@";
226 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
228 return proc;
230 else /* forward entry point */
232 WINE_MODREF *wm;
233 FARPROC proc;
234 char *forward = RVA(addr);
235 char module[256];
236 char *end = strchr(forward, '.');
238 if (!end) return NULL;
239 if (end - forward >= sizeof(module)) return NULL;
240 memcpy( module, forward, end - forward );
241 module[end-forward] = 0;
242 if (!(wm = MODULE_FindModule( module )))
244 ERR("module not found for forward '%s'\n", forward );
245 return NULL;
247 if (!(proc = MODULE_GetProcAddress( wm->module, end + 1, snoop )))
248 ERR("function not found for forward '%s'\n", forward );
249 return proc;
253 DWORD fixup_imports( WINE_MODREF *wm )
255 IMAGE_IMPORT_DESCRIPTOR *pe_imp;
256 PE_MODREF *pem;
257 unsigned int load_addr = wm->module;
258 int i,characteristics_detection=1;
259 char *modname;
261 assert(wm->type==MODULE32_PE);
262 pem = &(wm->binfmt.pe);
263 if (pem->pe_export)
264 modname = (char*) RVA(pem->pe_export->Name);
265 else
266 modname = "<unknown>";
268 /* OK, now dump the import list */
269 TRACE("Dumping imports list\n");
271 /* first, count the number of imported non-internal modules */
272 pe_imp = pem->pe_import;
273 if (!pe_imp) return 0;
275 /* We assume that we have at least one import with !0 characteristics and
276 * detect broken imports with all characteristics 0 (notably Borland) and
277 * switch the detection off for them.
279 for (i = 0; pe_imp->Name ; pe_imp++) {
280 if (!i && !pe_imp->u.Characteristics)
281 characteristics_detection = 0;
282 if (characteristics_detection && !pe_imp->u.Characteristics)
283 break;
284 i++;
286 if (!i) return 0; /* no imports */
288 /* Allocate module dependency list */
289 wm->nDeps = i;
290 wm->deps = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
292 /* load the imported modules. They are automatically
293 * added to the modref list of the process.
296 for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) {
297 WINE_MODREF *wmImp;
298 IMAGE_IMPORT_BY_NAME *pe_name;
299 PIMAGE_THUNK_DATA import_list,thunk_list;
300 char *name = (char *) RVA(pe_imp->Name);
302 if (characteristics_detection && !pe_imp->u.Characteristics)
303 break;
305 wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
306 if (!wmImp) {
307 ERR_(module)("Module (file) %s needed by %s not found\n", name, wm->filename);
308 return 1;
310 wm->deps[i++] = wmImp;
312 /* FIXME: forwarder entries ... */
314 if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
315 TRACE("Microsoft style imports used\n");
316 import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
317 thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
319 while (import_list->u1.Ordinal) {
320 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
321 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
323 TRACE("--- Ordinal %s,%d\n", name, ordinal);
324 thunk_list->u1.Function=MODULE_GetProcAddress(
325 wmImp->module, (LPCSTR)ordinal, TRUE
327 if (!thunk_list->u1.Function) {
328 ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
329 name, ordinal);
330 thunk_list->u1.Function = (FARPROC)0xdeadbeef;
332 } else { /* import by name */
333 pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
334 TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
335 thunk_list->u1.Function=MODULE_GetProcAddress(
336 wmImp->module, pe_name->Name, TRUE
338 if (!thunk_list->u1.Function) {
339 ERR("No implementation for %s.%d(%s), setting to 0xdeadbeef\n",
340 name,pe_name->Hint,pe_name->Name);
341 thunk_list->u1.Function = (FARPROC)0xdeadbeef;
344 import_list++;
345 thunk_list++;
347 } else { /* Borland style */
348 TRACE("Borland style imports used\n");
349 thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
350 while (thunk_list->u1.Ordinal) {
351 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
352 /* not sure about this branch, but it seems to work */
353 int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
355 TRACE("--- Ordinal %s.%d\n",name,ordinal);
356 thunk_list->u1.Function=MODULE_GetProcAddress(
357 wmImp->module, (LPCSTR) ordinal, TRUE
359 if (!thunk_list->u1.Function) {
360 ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
361 name,ordinal);
362 thunk_list->u1.Function = (FARPROC)0xdeadbeef;
364 } else {
365 pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
366 TRACE("--- %s %s.%d\n",
367 pe_name->Name,name,pe_name->Hint);
368 thunk_list->u1.Function=MODULE_GetProcAddress(
369 wmImp->module, pe_name->Name, TRUE
371 if (!thunk_list->u1.Function) {
372 ERR("No implementation for %s.%d, setting to 0xdeadbeef\n",
373 name, pe_name->Hint);
374 thunk_list->u1.Function = (FARPROC)0xdeadbeef;
377 thunk_list++;
381 return 0;
384 static int calc_vma_size( HMODULE hModule )
386 int i,vma_size = 0;
387 IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
389 TRACE("Dump of segment table\n");
390 TRACE(" Name VSz Vaddr SzRaw Fileadr *Reloc *Lineum #Reloc #Linum Char\n");
391 for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
393 TRACE("%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
394 pe_seg->Name,
395 pe_seg->Misc.VirtualSize,
396 pe_seg->VirtualAddress,
397 pe_seg->SizeOfRawData,
398 pe_seg->PointerToRawData,
399 pe_seg->PointerToRelocations,
400 pe_seg->PointerToLinenumbers,
401 pe_seg->NumberOfRelocations,
402 pe_seg->NumberOfLinenumbers,
403 pe_seg->Characteristics);
404 vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
405 vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize);
406 pe_seg++;
408 return vma_size;
411 static void do_relocations( unsigned int load_addr, IMAGE_BASE_RELOCATION *r )
413 int delta = load_addr - PE_HEADER(load_addr)->OptionalHeader.ImageBase;
414 int hdelta = (delta >> 16) & 0xFFFF;
415 int ldelta = delta & 0xFFFF;
417 if(delta == 0)
418 /* Nothing to do */
419 return;
420 while(r->VirtualAddress)
422 char *page = (char*) RVA(r->VirtualAddress);
423 int count = (r->SizeOfBlock - 8)/2;
424 int i;
425 TRACE_(fixup)("%x relocations for page %lx\n",
426 count, r->VirtualAddress);
427 /* patching in reverse order */
428 for(i=0;i<count;i++)
430 int offset = r->TypeOffset[i] & 0xFFF;
431 int type = r->TypeOffset[i] >> 12;
432 TRACE_(fixup)("patching %x type %x\n", offset, type);
433 switch(type)
435 case IMAGE_REL_BASED_ABSOLUTE: break;
436 case IMAGE_REL_BASED_HIGH:
437 *(short*)(page+offset) += hdelta;
438 break;
439 case IMAGE_REL_BASED_LOW:
440 *(short*)(page+offset) += ldelta;
441 break;
442 case IMAGE_REL_BASED_HIGHLOW:
443 *(int*)(page+offset) += delta;
444 /* FIXME: if this is an exported address, fire up enhanced logic */
445 break;
446 case IMAGE_REL_BASED_HIGHADJ:
447 FIXME("Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
448 break;
449 case IMAGE_REL_BASED_MIPS_JMPADDR:
450 FIXME("Is this a MIPS machine ???\n");
451 break;
452 default:
453 FIXME("Unknown fixup type %d.\n", type);
454 break;
457 r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
465 /**********************************************************************
466 * PE_LoadImage
467 * Load one PE format DLL/EXE into memory
469 * Unluckily we can't just mmap the sections where we want them, for
470 * (at least) Linux does only support offsets which are page-aligned.
472 * BUT we have to map the whole image anyway, for Win32 programs sometimes
473 * want to access them. (HMODULE32 point to the start of it)
475 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename )
477 HMODULE hModule;
478 HANDLE mapping;
480 IMAGE_NT_HEADERS *nt;
481 IMAGE_SECTION_HEADER *pe_sec;
482 IMAGE_DATA_DIRECTORY *dir;
483 BY_HANDLE_FILE_INFORMATION bhfi;
484 int i, rawsize, lowest_va, vma_size, file_size = 0;
485 DWORD load_addr = 0, aoep, reloc = 0;
486 struct get_read_fd_request *req = get_req_buffer();
487 int unix_handle = -1;
488 int page_size = VIRTUAL_GetPageSize();
490 /* Retrieve file size */
491 if ( GetFileInformationByHandle( hFile, &bhfi ) )
492 file_size = bhfi.nFileSizeLow; /* FIXME: 64 bit */
494 /* Map the PE file somewhere */
495 mapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
496 0, 0, NULL );
497 if (!mapping)
499 WARN("CreateFileMapping error %ld\n", GetLastError() );
500 return 0;
502 hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
503 CloseHandle( mapping );
504 if (!hModule)
506 WARN("MapViewOfFile error %ld\n", GetLastError() );
507 return 0;
509 if ( *(WORD*)hModule !=IMAGE_DOS_SIGNATURE)
511 WARN("%s image doesn't have DOS signature, but 0x%04x\n", filename,*(WORD*)hModule);
512 SetLastError( ERROR_BAD_EXE_FORMAT );
513 goto error;
516 nt = PE_HEADER( hModule );
518 /* Check signature */
519 if ( nt->Signature != IMAGE_NT_SIGNATURE )
521 WARN("%s image doesn't have PE signature, but 0x%08lx\n", filename, nt->Signature );
522 SetLastError( ERROR_BAD_EXE_FORMAT );
523 goto error;
526 /* Check architecture */
527 if ( nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386 )
529 MESSAGE("Trying to load PE image for unsupported architecture (");
530 switch (nt->FileHeader.Machine)
532 case IMAGE_FILE_MACHINE_UNKNOWN: MESSAGE("Unknown"); break;
533 case IMAGE_FILE_MACHINE_I860: MESSAGE("I860"); break;
534 case IMAGE_FILE_MACHINE_R3000: MESSAGE("R3000"); break;
535 case IMAGE_FILE_MACHINE_R4000: MESSAGE("R4000"); break;
536 case IMAGE_FILE_MACHINE_R10000: MESSAGE("R10000"); break;
537 case IMAGE_FILE_MACHINE_ALPHA: MESSAGE("Alpha"); break;
538 case IMAGE_FILE_MACHINE_POWERPC: MESSAGE("PowerPC"); break;
539 default: MESSAGE("Unknown-%04x", nt->FileHeader.Machine); break;
541 MESSAGE(")\n");
542 SetLastError( ERROR_BAD_EXE_FORMAT );
543 goto error;
546 /* Find out how large this executeable should be */
547 pe_sec = PE_SECTIONS( hModule );
548 rawsize = 0; lowest_va = 0x10000;
549 for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
551 if (lowest_va > pe_sec[i].VirtualAddress)
552 lowest_va = pe_sec[i].VirtualAddress;
553 if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
554 continue;
555 if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize)
556 rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData;
559 /* Check file size */
560 if ( file_size && file_size < rawsize )
562 ERR("PE module is too small (header: %d, filesize: %d), "
563 "probably truncated download?\n",
564 rawsize, file_size );
565 SetLastError( ERROR_BAD_EXE_FORMAT );
566 goto error;
569 /* Check entrypoint address */
570 aoep = nt->OptionalHeader.AddressOfEntryPoint;
571 if (aoep && (aoep < lowest_va))
572 MESSAGE("VIRUS WARNING: '%s' has an invalid entrypoint (0x%08lx) "
573 "below the first virtual address (0x%08x) "
574 "(possibly infected by Tchernobyl/SpaceFiller virus)!\n",
575 filename, aoep, lowest_va );
578 #if 0
579 /* FIXME: Hack! While we don't really support shared sections yet,
580 * this checks for those special cases where the whole DLL
581 * consists only of shared sections and is mapped into the
582 * shared address space > 2GB. In this case, we assume that
583 * the module got mapped at its base address. Thus we simply
584 * check whether the module has actually been mapped there
585 * and use it, if so. This is needed to get Win95 USER32.DLL
586 * to work (until we support shared sections properly).
589 if ( nt->OptionalHeader.ImageBase & 0x80000000 )
591 HMODULE sharedMod = (HMODULE)nt->OptionalHeader.ImageBase;
592 IMAGE_NT_HEADERS *sharedNt = (PIMAGE_NT_HEADERS)
593 ( (LPBYTE)sharedMod + ((LPBYTE)nt - (LPBYTE)hModule) );
595 /* Well, this check is not really comprehensive,
596 but should be good enough for now ... */
597 if ( !IsBadReadPtr( (LPBYTE)sharedMod, sizeof(IMAGE_DOS_HEADER) )
598 && memcmp( (LPBYTE)sharedMod, (LPBYTE)hModule, sizeof(IMAGE_DOS_HEADER) ) == 0
599 && !IsBadReadPtr( sharedNt, sizeof(IMAGE_NT_HEADERS) )
600 && memcmp( sharedNt, nt, sizeof(IMAGE_NT_HEADERS) ) == 0 )
602 UnmapViewOfFile( (LPVOID)hModule );
603 return sharedMod;
606 #endif
608 /* Allocate memory for module */
609 load_addr = nt->OptionalHeader.ImageBase;
610 vma_size = calc_vma_size( hModule );
612 load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
613 MEM_RESERVE | MEM_COMMIT,
614 PAGE_EXECUTE_READWRITE );
615 if (load_addr == 0)
617 /* We need to perform base relocations */
618 WARN("We need to perform base relocations for %s\n", filename);
619 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BASERELOC;
620 if (dir->Size)
621 reloc = dir->VirtualAddress;
622 else
624 FIXME( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
625 filename,
626 (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
627 "stripped during link" : "unknown reason" );
628 SetLastError( ERROR_BAD_EXE_FORMAT );
629 goto error;
632 /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
633 * really make sure that the *new* base address is also > 2GB.
634 * Some DLLs really check the MSB of the module handle :-/
636 if ( nt->OptionalHeader.ImageBase & 0x80000000 )
637 ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
639 load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
640 MEM_RESERVE | MEM_COMMIT,
641 PAGE_EXECUTE_READWRITE );
642 if (!load_addr) {
643 FIXME_(win32)(
644 "FATAL: Couldn't load module %s (out of memory, %d needed)!\n", filename, vma_size);
645 goto error;
649 TRACE("Load addr is %lx (base %lx), range %x\n",
650 load_addr, nt->OptionalHeader.ImageBase, vma_size );
651 TRACE_(segment)("Loading %s at %lx, range %x\n",
652 filename, load_addr, vma_size );
654 #if 0
655 /* Store the NT header at the load addr */
656 *(PIMAGE_DOS_HEADER)load_addr = *(PIMAGE_DOS_HEADER)hModule;
657 *PE_HEADER( load_addr ) = *nt;
658 memcpy( PE_SECTIONS(load_addr), PE_SECTIONS(hModule),
659 sizeof(IMAGE_SECTION_HEADER) * nt->FileHeader.NumberOfSections );
661 /* Copies all stuff up to the first section. Including win32 viruses. */
662 memcpy( load_addr, hModule, lowest_fa );
663 #endif
665 req->handle = hFile;
666 server_call_fd( REQ_GET_READ_FD, -1, &unix_handle );
667 if (unix_handle == -1) goto error;
669 /* Map the header */
670 if (FILE_dommap( unix_handle, (void *)load_addr, 0, nt->OptionalHeader.SizeOfHeaders,
671 0, 0, PROT_EXEC | PROT_WRITE | PROT_READ,
672 MAP_PRIVATE | MAP_FIXED ) != (void*)load_addr)
674 ERR_(win32)( "Critical Error: failed to map PE header to necessary address.\n");
675 goto error;
678 /* Copy sections into module image */
679 pe_sec = PE_SECTIONS( hModule );
680 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, pe_sec++)
682 if (!pe_sec->SizeOfRawData || !pe_sec->PointerToRawData) continue;
683 TRACE("%s: mmaping section %s at %p off %lx size %lx/%lx\n",
684 filename, pe_sec->Name, (void*)RVA(pe_sec->VirtualAddress),
685 pe_sec->PointerToRawData, pe_sec->SizeOfRawData, pe_sec->Misc.VirtualSize );
686 if (FILE_dommap( unix_handle, (void*)RVA(pe_sec->VirtualAddress),
687 0, pe_sec->SizeOfRawData, 0, pe_sec->PointerToRawData,
688 PROT_EXEC | PROT_WRITE | PROT_READ,
689 MAP_PRIVATE | MAP_FIXED ) != (void*)RVA(pe_sec->VirtualAddress))
691 /* We failed to map to the right place (huh?) */
692 ERR_(win32)( "Critical Error: failed to map PE section to necessary address.\n");
693 goto error;
695 if ((pe_sec->SizeOfRawData < pe_sec->Misc.VirtualSize) &&
696 (pe_sec->SizeOfRawData & (page_size-1)))
698 DWORD end = (pe_sec->SizeOfRawData & ~(page_size-1)) + page_size;
699 if (end > pe_sec->Misc.VirtualSize) end = pe_sec->Misc.VirtualSize;
700 TRACE("clearing %p - %p\n",
701 RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData,
702 RVA(pe_sec->VirtualAddress) + end );
703 memset( (char*)RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData, 0,
704 end - pe_sec->SizeOfRawData );
708 /* Perform base relocation, if necessary */
709 if ( reloc )
710 do_relocations( load_addr, (IMAGE_BASE_RELOCATION *)RVA(reloc) );
712 /* We don't need the orignal mapping any more */
713 UnmapViewOfFile( (LPVOID)hModule );
714 return (HMODULE)load_addr;
716 error:
717 if (unix_handle != -1) close( unix_handle );
718 if (load_addr) VirtualFree( (LPVOID)load_addr, 0, MEM_RELEASE );
719 UnmapViewOfFile( (LPVOID)hModule );
720 return 0;
723 /**********************************************************************
724 * PE_CreateModule
726 * Create WINE_MODREF structure for loaded HMODULE32, link it into
727 * process modref_list, and fixup all imports.
729 * Note: hModule must point to a correctly allocated PE image,
730 * with base relocations applied; the 16-bit dummy module
731 * associated to hModule must already exist.
733 * Note: This routine must always be called in the context of the
734 * process that is to own the module to be created.
736 WINE_MODREF *PE_CreateModule( HMODULE hModule,
737 LPCSTR filename, DWORD flags, BOOL builtin )
739 DWORD load_addr = (DWORD)hModule; /* for RVA */
740 IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
741 IMAGE_DATA_DIRECTORY *dir;
742 IMAGE_IMPORT_DESCRIPTOR *pe_import = NULL;
743 IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
744 IMAGE_RESOURCE_DIRECTORY *pe_resource = NULL;
745 WINE_MODREF *wm;
746 int result;
749 /* Retrieve DataDirectory entries */
751 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
752 if (dir->Size)
753 pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
755 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IMPORT;
756 if (dir->Size)
757 pe_import = (PIMAGE_IMPORT_DESCRIPTOR)RVA(dir->VirtualAddress);
759 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE;
760 if (dir->Size)
761 pe_resource = (PIMAGE_RESOURCE_DIRECTORY)RVA(dir->VirtualAddress);
763 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
764 if (dir->Size) FIXME("Exception directory ignored\n" );
766 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
767 if (dir->Size) FIXME("Security directory ignored\n" );
769 /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
770 /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
772 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DEBUG;
773 if (dir->Size) TRACE("Debug directory ignored\n" );
775 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COPYRIGHT;
776 if (dir->Size) FIXME("Copyright string ignored\n" );
778 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
779 if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
781 /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
783 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
784 if (dir->Size) FIXME("Load Configuration directory ignored\n" );
786 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
787 if (dir->Size) TRACE("Bound Import directory ignored\n" );
789 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
790 if (dir->Size) TRACE("Import Address Table directory ignored\n" );
792 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
793 if (dir->Size)
795 TRACE("Delayed import, stub calls LoadLibrary\n" );
797 * Nothing to do here.
800 #ifdef ImgDelayDescr
802 * This code is useful to observe what the heck is going on.
805 ImgDelayDescr *pe_delay = NULL;
806 pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
807 TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
808 TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
809 TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
810 TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
811 TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
812 TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
813 TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
814 TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
816 #endif /* ImgDelayDescr */
819 dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
820 if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
822 dir = nt->OptionalHeader.DataDirectory+15;
823 if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
826 /* Allocate and fill WINE_MODREF */
828 wm = (WINE_MODREF *)HeapAlloc( GetProcessHeap(),
829 HEAP_ZERO_MEMORY, sizeof(*wm) );
830 wm->module = hModule;
832 if ( builtin )
833 wm->flags |= WINE_MODREF_INTERNAL;
834 if ( flags & DONT_RESOLVE_DLL_REFERENCES )
835 wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
836 if ( flags & LOAD_LIBRARY_AS_DATAFILE )
837 wm->flags |= WINE_MODREF_LOAD_AS_DATAFILE;
839 wm->type = MODULE32_PE;
840 wm->binfmt.pe.pe_export = pe_export;
841 wm->binfmt.pe.pe_import = pe_import;
842 wm->binfmt.pe.pe_resource = pe_resource;
843 wm->binfmt.pe.tlsindex = -1;
845 wm->filename = HEAP_strdupA( GetProcessHeap(), 0, filename );
846 wm->modname = strrchr( wm->filename, '\\' );
847 if (!wm->modname) wm->modname = wm->filename;
848 else wm->modname++;
850 result = GetShortPathNameA( wm->filename, NULL, 0 );
851 wm->short_filename = (char *)HeapAlloc( GetProcessHeap(), 0, result+1 );
852 GetShortPathNameA( wm->filename, wm->short_filename, result+1 );
853 wm->short_modname = strrchr( wm->short_filename, '\\' );
854 if (!wm->short_modname) wm->short_modname = wm->short_filename;
855 else wm->short_modname++;
857 /* Link MODREF into process list */
859 EnterCriticalSection( &PROCESS_Current()->crit_section );
861 wm->next = PROCESS_Current()->modref_list;
862 PROCESS_Current()->modref_list = wm;
863 if ( wm->next ) wm->next->prev = wm;
865 if ( !( nt->FileHeader.Characteristics & IMAGE_FILE_DLL )
866 && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) )
869 if ( PROCESS_Current()->exe_modref )
870 FIXME( "Trying to load second .EXE file: %s\n", filename );
871 else
872 PROCESS_Current()->exe_modref = wm;
875 LeaveCriticalSection( &PROCESS_Current()->crit_section );
878 /* Dump Exports */
880 if ( pe_export )
881 dump_exports( hModule );
883 /* Fixup Imports */
885 if ( pe_import
886 && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE )
887 && !( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
888 && fixup_imports( wm ) )
890 /* remove entry from modref chain */
891 EnterCriticalSection( &PROCESS_Current()->crit_section );
893 if ( !wm->prev )
894 PROCESS_Current()->modref_list = wm->next;
895 else
896 wm->prev->next = wm->next;
898 if ( wm->next ) wm->next->prev = wm->prev;
899 wm->next = wm->prev = NULL;
901 LeaveCriticalSection( &PROCESS_Current()->crit_section );
903 /* FIXME: there are several more dangling references
904 * left. Including dlls loaded by this dll before the
905 * failed one. Unrolling is rather difficult with the
906 * current structure and we can leave it them lying
907 * around with no problems, so we don't care.
908 * As these might reference our wm, we don't free it.
910 return NULL;
913 return wm;
916 /******************************************************************************
917 * The PE Library Loader frontend.
918 * FIXME: handle the flags.
920 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
922 struct load_dll_request *req = get_req_buffer();
923 HMODULE hModule32;
924 HMODULE16 hModule16;
925 WINE_MODREF *wm;
926 char filename[256];
927 HANDLE hFile;
929 /* Search for and open PE file */
930 if ( SearchPathA( NULL, name, ".DLL",
931 sizeof(filename), filename, NULL ) == 0 ) return NULL;
933 hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
934 NULL, OPEN_EXISTING, 0, -1 );
935 if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
937 /* Load PE module */
938 hModule32 = PE_LoadImage( hFile, filename );
939 if (!hModule32)
941 CloseHandle( hFile );
942 return NULL;
945 /* Create 16-bit dummy module */
946 if ((hModule16 = MODULE_CreateDummyModule( filename, hModule32 )) < 32)
948 CloseHandle( hFile );
949 SetLastError( (DWORD)hModule16 ); /* This should give the correct error */
950 return NULL;
953 /* Create 32-bit MODREF */
954 if ( !(wm = PE_CreateModule( hModule32, filename, flags, FALSE )) )
956 ERR( "can't load %s\n", filename );
957 FreeLibrary16( hModule16 );
958 CloseHandle( hFile );
959 SetLastError( ERROR_OUTOFMEMORY );
960 return NULL;
963 if (wm->binfmt.pe.pe_export)
964 SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
965 req->handle = hFile;
966 req->base = (void *)hModule32;
967 req->dbg_offset = PE_HEADER(hModule32)->FileHeader.PointerToSymbolTable;
968 req->dbg_size = PE_HEADER(hModule32)->FileHeader.NumberOfSymbols;
969 req->name = &wm->filename;
970 server_call_noerr( REQ_LOAD_DLL );
971 CloseHandle( hFile );
972 return wm;
976 /*****************************************************************************
977 * PE_UnloadLibrary
979 * Unload the library unmapping the image and freeing the modref structure.
981 void PE_UnloadLibrary(WINE_MODREF *wm)
983 TRACE(" unloading %s\n", wm->filename);
984 /* VirtualFree( (LPVOID)wm->module, 0, MEM_RELEASE ); */ /* FIXME */
985 HeapFree( GetProcessHeap(), 0, wm->filename );
986 HeapFree( GetProcessHeap(), 0, wm->short_filename );
987 HeapFree( GetProcessHeap(), 0, wm );
991 /* Called if the library is loaded or freed.
992 * NOTE: if a thread attaches a DLL, the current thread will only do
993 * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
994 * (SDK)
996 BOOL PE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
998 BOOL retv = TRUE;
999 assert( wm->type == MODULE32_PE );
1001 /* Is this a library? And has it got an entrypoint? */
1002 if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
1003 (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
1005 DLLENTRYPROC entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
1006 TRACE_(relay)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
1007 entry, wm->module, type, lpReserved );
1009 retv = entry( wm->module, type, lpReserved );
1012 return retv;
1015 /************************************************************************
1016 * PE_InitTls (internal)
1018 * If included, initialises the thread local storages of modules.
1019 * Pointers in those structs are not RVAs but real pointers which have been
1020 * relocated by do_relocations() already.
1022 static LPVOID
1023 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
1024 if ( ((DWORD)addr>opt->ImageBase) &&
1025 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
1027 /* the address has not been relocated! */
1028 return (LPVOID)(((DWORD)addr)+delta);
1029 else
1030 /* the address has been relocated already */
1031 return addr;
1033 void PE_InitTls( void )
1035 WINE_MODREF *wm;
1036 PE_MODREF *pem;
1037 IMAGE_NT_HEADERS *peh;
1038 DWORD size,datasize;
1039 LPVOID mem;
1040 PIMAGE_TLS_DIRECTORY pdir;
1041 int delta;
1043 for (wm = PROCESS_Current()->modref_list;wm;wm=wm->next) {
1044 if (wm->type!=MODULE32_PE)
1045 continue;
1046 pem = &(wm->binfmt.pe);
1047 peh = PE_HEADER(wm->module);
1048 delta = wm->module - peh->OptionalHeader.ImageBase;
1049 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
1050 continue;
1051 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
1052 DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
1055 if ( pem->tlsindex == -1 ) {
1056 LPDWORD xaddr;
1057 pem->tlsindex = TlsAlloc();
1058 xaddr = _fixup_address(&(peh->OptionalHeader),delta,
1059 pdir->AddressOfIndex
1061 *xaddr=pem->tlsindex;
1063 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
1064 size = datasize + pdir->SizeOfZeroFill;
1065 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
1066 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
1067 if (pdir->AddressOfCallBacks) {
1068 PIMAGE_TLS_CALLBACK *cbs;
1070 cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
1071 if (*cbs)
1072 FIXME("TLS Callbacks aren't going to be called\n");
1075 TlsSetValue( pem->tlsindex, mem );