4 * Copyright 1995, 2003 Alexandre Julliard
5 * Copyright 2002 Dmitry Timoshkov for CodeWeavers
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include "wine/port.h"
35 #include "wine/exception.h"
37 #include "wine/unicode.h"
38 #include "wine/debug.h"
39 #include "wine/server.h"
40 #include "ntdll_misc.h"
42 WINE_DEFAULT_DEBUG_CHANNEL(module);
43 WINE_DECLARE_DEBUG_CHANNEL(relay);
44 WINE_DECLARE_DEBUG_CHANNEL(snoop);
45 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
47 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
49 static int process_detaching = 0; /* set on process detach to avoid deadlocks with thread detach */
50 static int free_lib_count; /* recursion depth of LdrUnloadDll calls */
52 /* filter for page-fault exceptions */
53 static WINE_EXCEPTION_FILTER(page_fault)
55 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
56 return EXCEPTION_EXECUTE_HANDLER;
57 return EXCEPTION_CONTINUE_SEARCH;
60 static const char * const reason_names[] =
68 static const WCHAR dllW[] = {'.','d','l','l',0};
70 /* internal representation of 32bit modules. per process. */
71 typedef struct _wine_modref
75 struct _wine_modref **deps;
78 /* info about the current builtin dll load */
79 /* used to keep track of things across the register_dll constructor call */
80 struct builtin_load_info
82 const WCHAR *load_path;
87 static struct builtin_load_info default_load_info;
88 static struct builtin_load_info *builtin_load_info = &default_load_info;
90 static UINT tls_module_count; /* number of modules with TLS directory */
91 static UINT tls_total_size; /* total size of TLS storage */
92 static const IMAGE_TLS_DIRECTORY **tls_dirs; /* array of TLS directories */
94 UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
96 static CRITICAL_SECTION loader_section;
97 static CRITICAL_SECTION_DEBUG critsect_debug =
99 0, 0, &loader_section,
100 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
101 0, 0, { 0, (DWORD)(__FILE__ ": loader_section") }
103 static CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 };
105 static WINE_MODREF *cached_modref;
106 static WINE_MODREF *current_modref;
108 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm );
109 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
110 DWORD exp_size, const char *name, int hint );
112 /* convert PE image VirtualAddress to Real Address */
113 inline static void *get_rva( HMODULE module, DWORD va )
115 return (void *)((char *)module + va);
118 /* check whether the file name contains a path */
119 inline static int contains_path( LPCWSTR name )
121 return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\'));
124 /* convert from straight ASCII to Unicode without depending on the current codepage */
125 inline static void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
127 while (len--) *dst++ = (unsigned char)*src++;
131 /*************************************************************************
132 * call_dll_entry_point
134 * Some brain-damaged dlls (ir32_32.dll for instance) modify ebx in
135 * their entry point, so we need a small asm wrapper.
138 extern BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved );
139 __ASM_GLOBAL_FUNC(call_dll_entry_point,
146 "movl 8(%ebp),%eax\n\t"
148 "leal -4(%ebp),%esp\n\t"
153 static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module,
154 UINT reason, void *reserved )
156 return proc( module, reason, reserved );
158 #endif /* __i386__ */
161 /*************************************************************************
164 * Looks for the referenced HMODULE in the current process
165 * The loader_section must be locked while calling this function.
167 static WINE_MODREF *get_modref( HMODULE hmod )
169 PLIST_ENTRY mark, entry;
172 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
174 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
175 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
177 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
178 if (mod->BaseAddress == hmod)
179 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
180 if (mod->BaseAddress > (void*)hmod) break;
186 /**********************************************************************
187 * find_basename_module
189 * Find a module from its base name.
190 * The loader_section must be locked while calling this function
192 static WINE_MODREF *find_basename_module( LPCWSTR name )
194 PLIST_ENTRY mark, entry;
196 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
197 return cached_modref;
199 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
200 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
202 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
203 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
205 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
206 return cached_modref;
213 /**********************************************************************
214 * find_fullname_module
216 * Find a module from its full path name.
217 * The loader_section must be locked while calling this function
219 static WINE_MODREF *find_fullname_module( LPCWSTR name )
221 PLIST_ENTRY mark, entry;
223 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
224 return cached_modref;
226 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
227 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
229 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
230 if (!strcmpiW( name, mod->FullDllName.Buffer ))
232 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
233 return cached_modref;
240 /*************************************************************************
241 * find_forwarded_export
243 * Find the final function pointer for a forwarded function.
244 * The loader_section must be locked while calling this function.
246 static FARPROC find_forwarded_export( HMODULE module, const char *forward )
248 const IMAGE_EXPORT_DIRECTORY *exports;
252 const char *end = strchr(forward, '.');
255 if (!end) return NULL;
256 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
257 ascii_to_unicode( mod_name, forward, end - forward );
258 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
260 if (!(wm = find_basename_module( mod_name )))
262 ERR("module not found for forward '%s' used by %s\n",
263 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
266 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
267 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
268 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1 );
272 ERR("function not found for forward '%s' used by %s."
273 " If you are using builtin %s, try using the native one instead.\n",
274 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
275 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
281 /*************************************************************************
282 * find_ordinal_export
284 * Find an exported function by ordinal.
285 * The exports base must have been subtracted from the ordinal already.
286 * The loader_section must be locked while calling this function.
288 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
289 DWORD exp_size, int ordinal )
292 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
294 if (ordinal >= exports->NumberOfFunctions)
296 TRACE(" ordinal %ld out of range!\n", ordinal + exports->Base );
299 if (!functions[ordinal]) return NULL;
301 proc = get_rva( module, functions[ordinal] );
303 /* if the address falls into the export dir, it's a forward */
304 if (((const char *)proc >= (const char *)exports) &&
305 ((const char *)proc < (const char *)exports + exp_size))
306 return find_forwarded_export( module, (const char *)proc );
310 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
311 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
315 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
316 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, user );
322 /*************************************************************************
325 * Find an exported function by name.
326 * The loader_section must be locked while calling this function.
328 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
329 DWORD exp_size, const char *name, int hint )
331 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
332 const DWORD *names = get_rva( module, exports->AddressOfNames );
333 int min = 0, max = exports->NumberOfNames - 1;
335 /* first check the hint */
336 if (hint >= 0 && hint <= max)
338 char *ename = get_rva( module, names[hint] );
339 if (!strcmp( ename, name ))
340 return find_ordinal_export( module, exports, exp_size, ordinals[hint] );
343 /* then do a binary search */
346 int res, pos = (min + max) / 2;
347 char *ename = get_rva( module, names[pos] );
348 if (!(res = strcmp( ename, name )))
349 return find_ordinal_export( module, exports, exp_size, ordinals[pos] );
350 if (res > 0) max = pos - 1;
358 /*************************************************************************
361 * Import the dll specified by the given import descriptor.
362 * The loader_section must be locked while calling this function.
364 static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
369 const IMAGE_EXPORT_DIRECTORY *exports;
371 const IMAGE_THUNK_DATA *import_list;
372 IMAGE_THUNK_DATA *thunk_list;
374 const char *name = get_rva( module, descr->Name );
375 DWORD len = strlen(name) + 1;
377 DWORD protect_size = 0;
380 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
381 if (descr->u.OriginalFirstThunk)
382 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
384 import_list = thunk_list;
386 if (len * sizeof(WCHAR) <= sizeof(buffer))
388 ascii_to_unicode( buffer, name, len );
389 status = load_dll( load_path, buffer, 0, &wmImp );
391 else /* need to allocate a larger buffer */
393 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) );
394 if (!ptr) return NULL;
395 ascii_to_unicode( ptr, name, len );
396 status = load_dll( load_path, ptr, 0, &wmImp );
397 RtlFreeHeap( GetProcessHeap(), 0, ptr );
402 if (status == STATUS_DLL_NOT_FOUND)
403 ERR("Library %s (which is needed by %s) not found\n",
404 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
406 ERR("Loading library %s (which is needed by %s) failed (error %lx).\n",
407 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
411 /* unprotect the import address table since it can be located in
412 * readonly section */
413 while (import_list[protect_size].u1.Ordinal) protect_size++;
414 protect_base = thunk_list;
415 protect_size *= sizeof(*thunk_list);
416 NtProtectVirtualMemory( GetCurrentProcess(), &protect_base,
417 &protect_size, PAGE_WRITECOPY, &protect_old );
419 imp_mod = wmImp->ldr.BaseAddress;
420 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
424 /* set all imported function to deadbeef */
425 while (import_list->u1.Ordinal)
427 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
429 ERR("No implementation for %s.%ld", name, IMAGE_ORDINAL(import_list->u1.Ordinal));
433 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
434 ERR("No implementation for %s.%s", name, pe_name->Name );
436 ERR(" imported from %s, setting to 0xdeadbeef\n",
437 debugstr_w(current_modref->ldr.FullDllName.Buffer) );
438 thunk_list->u1.Function = (PDWORD)0xdeadbeef;
446 while (import_list->u1.Ordinal)
448 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
450 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
452 thunk_list->u1.Function = (PDWORD)find_ordinal_export( imp_mod, exports, exp_size,
453 ordinal - exports->Base );
454 if (!thunk_list->u1.Function)
456 ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
457 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer) );
458 thunk_list->u1.Function = (PDWORD)0xdeadbeef;
460 TRACE("--- Ordinal %s.%d = %p\n", name, ordinal, thunk_list->u1.Function );
462 else /* import by name */
464 IMAGE_IMPORT_BY_NAME *pe_name;
465 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
466 thunk_list->u1.Function = (PDWORD)find_named_export( imp_mod, exports, exp_size,
467 pe_name->Name, pe_name->Hint );
468 if (!thunk_list->u1.Function)
470 ERR("No implementation for %s.%s imported from %s, setting to 0xdeadbeef\n",
471 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer) );
472 thunk_list->u1.Function = (PDWORD)0xdeadbeef;
474 TRACE("--- %s %s.%d = %p\n", pe_name->Name, name, pe_name->Hint, thunk_list->u1.Function);
481 /* restore old protection of the import address table */
482 NtProtectVirtualMemory( GetCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
487 /****************************************************************
490 * Fixup all imports of a given module.
491 * The loader_section must be locked while calling this function.
493 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
496 const IMAGE_IMPORT_DESCRIPTOR *imports;
501 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
502 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
503 return STATUS_SUCCESS;
505 nb_imports = size / sizeof(*imports);
506 for (i = 0; i < nb_imports; i++)
508 if (!imports[i].Name)
514 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
516 /* Allocate module dependency list */
517 wm->nDeps = nb_imports;
518 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
520 /* load the imported modules. They are automatically
521 * added to the modref list of the process.
523 prev = current_modref;
525 status = STATUS_SUCCESS;
526 for (i = 0; i < nb_imports; i++)
528 if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path )))
529 status = STATUS_DLL_NOT_FOUND;
531 current_modref = prev;
536 /*************************************************************************
539 * Allocate a WINE_MODREF structure and add it to the process list
540 * The loader_section must be locked while calling this function.
542 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
546 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
547 PLIST_ENTRY entry, mark;
549 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
554 wm->ldr.BaseAddress = hModule;
555 wm->ldr.EntryPoint = NULL;
556 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
558 wm->ldr.LoadCount = 0;
559 wm->ldr.TlsIndex = -1;
560 wm->ldr.SectionHandle = NULL;
561 wm->ldr.CheckSum = 0;
562 wm->ldr.TimeDateStamp = 0;
564 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
565 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
566 else p = wm->ldr.FullDllName.Buffer;
567 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
569 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
571 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
572 if (nt->OptionalHeader.AddressOfEntryPoint)
573 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
576 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
577 &wm->ldr.InLoadOrderModuleList);
579 /* insert module in MemoryList, sorted in increasing base addresses */
580 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
581 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
583 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
586 entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
587 wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
588 wm->ldr.InMemoryOrderModuleList.Flink = entry;
589 entry->Blink = &wm->ldr.InMemoryOrderModuleList;
591 /* wait until init is called for inserting into this list */
592 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
593 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
598 /*************************************************************************
601 * Allocate the process-wide structure for module TLS storage.
603 static NTSTATUS alloc_process_tls(void)
605 PLIST_ENTRY mark, entry;
607 const IMAGE_TLS_DIRECTORY *dir;
610 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
611 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
613 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
614 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
615 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
617 size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
619 tls_total_size += size;
622 if (!tls_module_count) return STATUS_SUCCESS;
624 TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
626 tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) );
627 if (!tls_dirs) return STATUS_NO_MEMORY;
629 for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
631 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
632 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
633 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
636 *dir->AddressOfIndex = i;
638 mod->LoadCount = -1; /* can't unload it */
641 return STATUS_SUCCESS;
645 /*************************************************************************
648 * Allocate the per-thread structure for module TLS storage.
650 static NTSTATUS alloc_thread_tls(void)
656 if (!tls_module_count) return STATUS_SUCCESS;
658 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0,
659 tls_module_count * sizeof(*pointers) )))
660 return STATUS_NO_MEMORY;
662 if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, tls_total_size )))
664 RtlFreeHeap( GetProcessHeap(), 0, pointers );
665 return STATUS_NO_MEMORY;
668 for (i = 0; i < tls_module_count; i++)
670 const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
671 ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
673 TRACE( "thread %04lx idx %d: %ld/%ld bytes from %p to %p\n",
674 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill,
675 (void *)dir->StartAddressOfRawData, data );
678 memcpy( data, (void *)dir->StartAddressOfRawData, size );
680 memset( data, 0, dir->SizeOfZeroFill );
681 data += dir->SizeOfZeroFill;
683 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
684 return STATUS_SUCCESS;
688 /*************************************************************************
691 static void call_tls_callbacks( HMODULE module, UINT reason )
693 const IMAGE_TLS_DIRECTORY *dir;
694 const PIMAGE_TLS_CALLBACK *callback;
697 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
698 if (!dir || !dir->AddressOfCallBacks) return;
700 for (callback = dir->AddressOfCallBacks; *callback; callback++)
703 DPRINTF("%04lx:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
704 GetCurrentThreadId(), *callback, module, reason_names[reason] );
705 (*callback)( module, reason, NULL );
707 DPRINTF("%04lx:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
708 GetCurrentThreadId(), *callback, module, reason_names[reason] );
713 /*************************************************************************
716 static BOOL MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
720 DLLENTRYPROC entry = wm->ldr.EntryPoint;
721 void *module = wm->ldr.BaseAddress;
723 /* Skip calls for modules loaded with special load flags */
725 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return TRUE;
726 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
727 if (!entry) return TRUE;
731 size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
732 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
733 mod_name[len / sizeof(WCHAR)] = 0;
734 DPRINTF("%04lx:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
735 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
736 reason_names[reason], lpReserved );
738 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
739 reason_names[reason], lpReserved );
741 retv = call_dll_entry_point( entry, module, reason, lpReserved );
743 /* The state of the module list may have changed due to the call
744 to the dll. We cannot assume that this module has not been
747 DPRINTF("%04lx:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
748 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
749 reason_names[reason], lpReserved, retv );
750 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
756 /*************************************************************************
759 * Send the process attach notification to all DLLs the given module
760 * depends on (recursively). This is somewhat complicated due to the fact that
762 * - we have to respect the module dependencies, i.e. modules implicitly
763 * referenced by another module have to be initialized before the module
764 * itself can be initialized
766 * - the initialization routine of a DLL can itself call LoadLibrary,
767 * thereby introducing a whole new set of dependencies (even involving
768 * the 'old' modules) at any time during the whole process
770 * (Note that this routine can be recursively entered not only directly
771 * from itself, but also via LoadLibrary from one of the called initialization
774 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
775 * the process *detach* notifications to be sent in the correct order.
776 * This must not only take into account module dependencies, but also
777 * 'hidden' dependencies created by modules calling LoadLibrary in their
778 * attach notification routine.
780 * The strategy is rather simple: we move a WINE_MODREF to the head of the
781 * list after the attach notification has returned. This implies that the
782 * detach notifications are called in the reverse of the sequence the attach
783 * notifications *returned*.
785 * The loader_section must be locked while calling this function.
787 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
789 NTSTATUS status = STATUS_SUCCESS;
792 /* prevent infinite recursion in case of cyclical dependencies */
793 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
794 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
797 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
799 /* Tag current MODREF to prevent recursive loop */
800 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
802 /* Recursively attach all DLLs this one depends on */
803 for ( i = 0; i < wm->nDeps; i++ )
805 if (!wm->deps[i]) continue;
806 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
809 /* Call DLL entry point */
810 if (status == STATUS_SUCCESS)
812 WINE_MODREF *prev = current_modref;
814 if (MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved ))
815 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
817 status = STATUS_DLL_INIT_FAILED;
818 current_modref = prev;
821 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
822 &wm->ldr.InInitializationOrderModuleList);
824 /* Remove recursion flag */
825 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
827 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
831 /*************************************************************************
834 * Send DLL process detach notifications. See the comment about calling
835 * sequence at process_attach. Unless the bForceDetach flag
836 * is set, only DLLs with zero refcount are notified.
838 static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
840 PLIST_ENTRY mark, entry;
843 RtlEnterCriticalSection( &loader_section );
844 if (bForceDetach) process_detaching = 1;
845 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
848 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
850 mod = CONTAINING_RECORD(entry, LDR_MODULE,
851 InInitializationOrderModuleList);
852 /* Check whether to detach this DLL */
853 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
855 if ( mod->LoadCount && !bForceDetach )
858 /* Call detach notification */
859 mod->Flags &= ~LDR_PROCESS_ATTACHED;
860 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
861 DLL_PROCESS_DETACH, lpReserved );
863 /* Restart at head of WINE_MODREF list, as entries might have
864 been added and/or removed while performing the call ... */
867 } while (entry != mark);
869 RtlLeaveCriticalSection( &loader_section );
872 /*************************************************************************
873 * MODULE_DllThreadAttach
875 * Send DLL thread attach notifications. These are sent in the
876 * reverse sequence of process detach notification.
879 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
881 PLIST_ENTRY mark, entry;
885 /* don't do any attach calls if process is exiting */
886 if (process_detaching) return STATUS_SUCCESS;
887 /* FIXME: there is still a race here */
889 RtlEnterCriticalSection( &loader_section );
891 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
893 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
894 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
896 mod = CONTAINING_RECORD(entry, LDR_MODULE,
897 InInitializationOrderModuleList);
898 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
900 if ( mod->Flags & LDR_NO_DLL_CALLS )
903 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
904 DLL_THREAD_ATTACH, lpReserved );
908 RtlLeaveCriticalSection( &loader_section );
912 /******************************************************************
913 * LdrDisableThreadCalloutsForDll (NTDLL.@)
916 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
919 NTSTATUS ret = STATUS_SUCCESS;
921 RtlEnterCriticalSection( &loader_section );
923 wm = get_modref( hModule );
924 if (!wm || wm->ldr.TlsIndex != -1)
925 ret = STATUS_DLL_NOT_FOUND;
927 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
929 RtlLeaveCriticalSection( &loader_section );
934 /******************************************************************
935 * LdrFindEntryForAddress (NTDLL.@)
937 * The loader_section must be locked while calling this function
939 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
941 PLIST_ENTRY mark, entry;
944 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
945 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
947 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
948 if ((const void *)mod->BaseAddress <= addr &&
949 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
952 return STATUS_SUCCESS;
954 if ((const void *)mod->BaseAddress > addr) break;
956 return STATUS_NO_MORE_ENTRIES;
959 /******************************************************************
960 * LdrLockLoaderLock (NTDLL.@)
962 * Note: flags are not implemented.
963 * Flag 0x01 is used to raise exceptions on errors.
964 * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
966 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
968 if (flags) FIXME( "flags %lx not supported\n", flags );
970 if (result) *result = 1;
971 if (!magic) return STATUS_INVALID_PARAMETER_3;
972 RtlEnterCriticalSection( &loader_section );
973 *magic = GetCurrentThreadId();
974 return STATUS_SUCCESS;
978 /******************************************************************
979 * LdrUnlockLoaderUnlock (NTDLL.@)
981 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
985 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
986 RtlLeaveCriticalSection( &loader_section );
988 return STATUS_SUCCESS;
992 /******************************************************************
993 * LdrGetDllHandle (NTDLL.@)
995 NTSTATUS WINAPI LdrGetDllHandle(ULONG x, ULONG y, const UNICODE_STRING *name, HMODULE *base)
997 NTSTATUS status = STATUS_DLL_NOT_FOUND;
998 WCHAR dllname[MAX_PATH+4], *p;
1000 PLIST_ENTRY mark, entry;
1003 if (x != 0 || y != 0)
1004 FIXME("Unknown behavior, please report\n");
1006 /* Append .DLL to name if no extension present */
1007 if (!(p = strrchrW( name->Buffer, '.')) || strchrW( p, '/' ) || strchrW( p, '\\'))
1009 if (name->Length >= MAX_PATH) return STATUS_NAME_TOO_LONG;
1010 strcpyW( dllname, name->Buffer );
1011 strcatW( dllname, dllW );
1012 RtlInitUnicodeString( &str, dllname );
1016 RtlEnterCriticalSection( &loader_section );
1020 if (RtlEqualUnicodeString( name, &cached_modref->ldr.FullDllName, TRUE ) ||
1021 RtlEqualUnicodeString( name, &cached_modref->ldr.BaseDllName, TRUE ))
1023 *base = cached_modref->ldr.BaseAddress;
1024 status = STATUS_SUCCESS;
1029 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1030 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1032 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1034 if (RtlEqualUnicodeString( name, &mod->FullDllName, TRUE ) ||
1035 RtlEqualUnicodeString( name, &mod->BaseDllName, TRUE ))
1037 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1038 *base = mod->BaseAddress;
1039 status = STATUS_SUCCESS;
1044 RtlLeaveCriticalSection( &loader_section );
1045 TRACE("%lx %lx %s -> %p\n", x, y, debugstr_us(name), status ? NULL : *base);
1050 /******************************************************************
1051 * LdrGetProcedureAddress (NTDLL.@)
1053 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1054 ULONG ord, PVOID *address)
1056 IMAGE_EXPORT_DIRECTORY *exports;
1058 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1060 RtlEnterCriticalSection( &loader_section );
1062 if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1063 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1065 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1 )
1066 : find_ordinal_export( module, exports, exp_size, ord - exports->Base );
1070 ret = STATUS_SUCCESS;
1075 /* check if the module itself is invalid to return the proper error */
1076 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1079 RtlLeaveCriticalSection( &loader_section );
1084 /***********************************************************************
1085 * load_builtin_callback
1087 * Load a library in memory; callback function for wine_dll_register
1089 static void load_builtin_callback( void *module, const char *filename )
1091 static const WCHAR emptyW[1];
1093 IMAGE_NT_HEADERS *nt;
1095 WCHAR *fullname, *p;
1096 const WCHAR *load_path;
1100 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1103 if (!(nt = RtlImageNtHeader( module )))
1105 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1106 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1109 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
1111 /* if we already have an executable, ignore this one */
1112 if (!NtCurrentTeb()->Peb->ImageBaseAddress)
1114 NtCurrentTeb()->Peb->ImageBaseAddress = module;
1115 return; /* don't create the modref here, will be done later on */
1119 /* create the MODREF */
1121 if (!(fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1122 system_dir.MaximumLength + (strlen(filename) + 1) * sizeof(WCHAR) )))
1124 ERR( "can't load %s\n", filename );
1125 builtin_load_info->status = STATUS_NO_MEMORY;
1128 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1129 p = fullname + system_dir.Length / sizeof(WCHAR);
1130 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1131 ascii_to_unicode( p, filename, strlen(filename) + 1 );
1133 wm = alloc_module( module, fullname );
1134 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1137 ERR( "can't load %s\n", filename );
1138 builtin_load_info->status = STATUS_NO_MEMORY;
1141 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1143 NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 0, &nt->OptionalHeader.SizeOfImage,
1144 MEM_SYSTEM | MEM_IMAGE, PAGE_EXECUTE_WRITECOPY );
1148 load_path = builtin_load_info->load_path;
1149 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1150 if (!load_path) load_path = emptyW;
1151 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1153 /* the module has only be inserted in the load & memory order lists */
1154 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1155 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1156 /* FIXME: free the modref */
1157 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1160 builtin_load_info->wm = wm;
1161 TRACE( "loaded %s %p %p\n", filename, wm, module );
1163 /* send the DLL load event */
1165 SERVER_START_REQ( load_dll )
1169 req->size = nt->OptionalHeader.SizeOfImage;
1170 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1171 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1172 req->name = &wm->ldr.FullDllName.Buffer;
1173 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1174 wine_server_call( req );
1178 /* setup relay debugging entry points */
1179 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1183 /******************************************************************************
1184 * load_native_dll (internal)
1186 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1187 DWORD flags, WINE_MODREF** pwm )
1191 OBJECT_ATTRIBUTES attr;
1193 IMAGE_NT_HEADERS *nt;
1198 TRACE( "loading %s\n", debugstr_w(name) );
1200 attr.Length = sizeof(attr);
1201 attr.RootDirectory = 0;
1202 attr.ObjectName = NULL;
1203 attr.Attributes = 0;
1204 attr.SecurityDescriptor = NULL;
1205 attr.SecurityQualityOfService = NULL;
1208 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1209 &attr, &size, 0, SEC_IMAGE, file );
1210 if (status != STATUS_SUCCESS) return status;
1213 status = NtMapViewOfSection( mapping, GetCurrentProcess(),
1214 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
1216 if (status != STATUS_SUCCESS) return status;
1218 /* create the MODREF */
1220 if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
1224 if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
1226 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1228 /* the module has only be inserted in the load & memory order lists */
1229 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1230 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1232 /* FIXME: there are several more dangling references
1233 * left. Including dlls loaded by this dll before the
1234 * failed one. Unrolling is rather difficult with the
1235 * current structure and we can leave them lying
1236 * around with no problems, so we don't care.
1237 * As these might reference our wm, we don't free it.
1242 else wm->ldr.Flags |= LDR_DONT_RESOLVE_REFS;
1244 /* send DLL load event */
1246 nt = RtlImageNtHeader( module );
1248 /* don't keep the file open if the mapping is from removable media */
1249 if (!VIRTUAL_HasMapping( module )) file = 0;
1251 SERVER_START_REQ( load_dll )
1255 req->size = nt->OptionalHeader.SizeOfImage;
1256 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1257 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1258 req->name = &wm->ldr.FullDllName.Buffer;
1259 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1260 wine_server_call( req );
1264 if (TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1267 return STATUS_SUCCESS;
1271 /***********************************************************************
1274 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, DWORD flags, WINE_MODREF** pwm )
1276 char error[256], dllname[MAX_PATH];
1278 const WCHAR *name, *p;
1281 struct builtin_load_info info, *prev_info;
1283 /* Fix the name in case we have a full path and extension */
1285 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1286 if ((p = strrchrW( name, '/' ))) name = p + 1;
1288 /* we don't want to depend on the current codepage here */
1289 len = strlenW( name ) + 1;
1290 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1291 for (i = 0; i < len; i++)
1293 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1294 dllname[i] = (char)name[i];
1295 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1298 /* load_library will modify info.status. Note also that load_library can be
1299 * called several times, if the .so file we're loading has dependencies.
1300 * info.status will gather all the errors we may get while loading all these
1303 info.load_path = load_path;
1304 info.status = STATUS_SUCCESS;
1306 prev_info = builtin_load_info;
1307 builtin_load_info = &info;
1308 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1309 builtin_load_info = prev_info;
1315 /* The file does not exist -> WARN() */
1316 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1317 return STATUS_DLL_NOT_FOUND;
1319 /* ERR() for all other errors (missing functions, ...) */
1320 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1321 return STATUS_PROCEDURE_NOT_FOUND;
1323 if (info.status != STATUS_SUCCESS) return info.status;
1327 /* The constructor wasn't called, this means the .so is already
1328 * loaded under a different name. We can't support multiple names
1329 * for the same module, so return an error. */
1330 return STATUS_INVALID_IMAGE_FORMAT;
1333 info.wm->ldr.SectionHandle = handle;
1334 if (strcmpiW( info.wm->ldr.BaseDllName.Buffer, name ))
1336 ERR( "loaded .so for %s but got %s instead - probably 16-bit dll\n",
1337 debugstr_w(name), debugstr_w(info.wm->ldr.BaseDllName.Buffer) );
1338 /* wine_dll_unload( handle );*/
1339 return STATUS_INVALID_IMAGE_FORMAT;
1342 return STATUS_SUCCESS;
1346 /***********************************************************************
1349 * Find the file (or already loaded module) for a given dll name.
1351 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
1352 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
1354 OBJECT_ATTRIBUTES attr;
1356 UNICODE_STRING nt_name;
1357 WCHAR *file_part, *ext, *dllname;
1360 /* first append .dll if needed */
1363 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
1365 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
1366 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
1367 return STATUS_NO_MEMORY;
1368 strcpyW( dllname, libname );
1369 strcatW( dllname, dllW );
1373 nt_name.Buffer = NULL;
1374 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
1376 /* we need to search for it */
1377 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
1380 if (len >= *size) goto overflow;
1381 if ((*pwm = find_fullname_module( filename )) != NULL) goto found;
1383 /* check for already loaded module in a different path */
1384 if (!contains_path( libname ))
1386 if ((*pwm = find_basename_module( file_part )) != NULL) goto found;
1388 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
1390 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1391 return STATUS_NO_MEMORY;
1393 attr.Length = sizeof(attr);
1394 attr.RootDirectory = 0;
1395 attr.Attributes = OBJ_CASE_INSENSITIVE;
1396 attr.ObjectName = &nt_name;
1397 attr.SecurityDescriptor = NULL;
1398 attr.SecurityQualityOfService = NULL;
1399 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1405 if (!contains_path( libname ))
1407 /* if libname doesn't contain a path at all, we simply return the name as is,
1408 * to be loaded as builtin */
1409 len = strlenW(libname) * sizeof(WCHAR);
1410 if (len >= *size) goto overflow;
1411 strcpyW( filename, libname );
1412 *pwm = find_basename_module( filename );
1417 /* absolute path name, or relative path name but not found above */
1419 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
1421 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1422 return STATUS_NO_MEMORY;
1424 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
1425 if (len >= *size) goto overflow;
1426 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
1427 if (!(*pwm = find_fullname_module( filename )))
1429 attr.Length = sizeof(attr);
1430 attr.RootDirectory = 0;
1431 attr.Attributes = OBJ_CASE_INSENSITIVE;
1432 attr.ObjectName = &nt_name;
1433 attr.SecurityDescriptor = NULL;
1434 attr.SecurityQualityOfService = NULL;
1435 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1438 RtlFreeUnicodeString( &nt_name );
1439 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1440 return STATUS_SUCCESS;
1443 RtlFreeUnicodeString( &nt_name );
1444 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1445 *size = len + sizeof(WCHAR);
1446 return STATUS_BUFFER_TOO_SMALL;
1450 /***********************************************************************
1451 * load_dll (internal)
1453 * Load a PE style module according to the load order.
1454 * The loader_section must be locked while calling this function.
1456 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
1459 enum loadorder_type loadorder[LOADORDER_NTYPES];
1463 const char *filetype = "";
1464 WINE_MODREF *main_exe;
1468 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
1471 size = sizeof(buffer);
1474 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
1475 if (nts == STATUS_SUCCESS) break;
1476 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1477 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
1478 /* grow the buffer and retry */
1479 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
1482 if (*pwm) /* found already loaded module */
1484 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
1486 if (((*pwm)->ldr.Flags & LDR_DONT_RESOLVE_REFS) &&
1487 !(flags & DONT_RESOLVE_DLL_REFERENCES))
1489 (*pwm)->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
1490 fixup_imports( *pwm, load_path );
1492 TRACE("Found loaded module %s for %s at %p, count=%d\n",
1493 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
1494 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
1495 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1496 return STATUS_SUCCESS;
1499 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
1500 MODULE_GetLoadOrderW( loadorder, main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
1502 nts = STATUS_DLL_NOT_FOUND;
1503 for (i = 0; i < LOADORDER_NTYPES; i++)
1505 if (loadorder[i] == LOADORDER_INVALID) break;
1507 switch (loadorder[i])
1510 TRACE("Trying native dll %s\n", debugstr_w(filename));
1511 if (!handle) continue; /* it cannot possibly be loaded */
1512 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1513 filetype = "native";
1516 TRACE("Trying built-in %s\n", debugstr_w(filename));
1517 nts = load_builtin_dll( load_path, filename, flags, pwm );
1518 filetype = "builtin";
1521 nts = STATUS_INTERNAL_ERROR;
1525 if (nts == STATUS_SUCCESS)
1527 /* Initialize DLL just loaded */
1528 TRACE("Loaded module %s (%s) at %p\n",
1529 debugstr_w(filename), filetype, (*pwm)->ldr.BaseAddress);
1530 if (!TRACE_ON(module))
1531 TRACE_(loaddll)("Loaded module %s : %s\n",
1532 debugstr_w((*pwm)->ldr.FullDllName.Buffer), filetype);
1533 /* Set the ldr.LoadCount here so that an attach failure will */
1534 /* decrement the dependencies through the MODULE_FreeLibrary call. */
1535 (*pwm)->ldr.LoadCount = 1;
1536 if (handle) NtClose( handle );
1537 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1540 if (nts != STATUS_DLL_NOT_FOUND) break;
1543 WARN("Failed to load module %s; status=%lx\n", debugstr_w(libname), nts);
1544 if (handle) NtClose( handle );
1545 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1549 /******************************************************************
1550 * LdrLoadDll (NTDLL.@)
1552 NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
1553 const UNICODE_STRING *libname, HMODULE* hModule)
1558 RtlEnterCriticalSection( &loader_section );
1560 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1561 nts = load_dll( path_name, libname->Buffer, flags, &wm );
1563 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
1565 nts = process_attach( wm, NULL );
1566 if (nts != STATUS_SUCCESS)
1568 WARN("Attach failed for module %s\n", debugstr_w(libname->Buffer));
1569 LdrUnloadDll(wm->ldr.BaseAddress);
1573 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
1575 RtlLeaveCriticalSection( &loader_section );
1579 /******************************************************************
1580 * LdrQueryProcessModuleInformation
1583 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
1584 ULONG buf_size, ULONG* req_size)
1586 SYSTEM_MODULE* sm = &smi->Modules[0];
1587 ULONG size = sizeof(ULONG);
1588 NTSTATUS nts = STATUS_SUCCESS;
1591 PLIST_ENTRY mark, entry;
1594 smi->ModulesCount = 0;
1596 RtlEnterCriticalSection( &loader_section );
1597 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1598 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1600 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1601 size += sizeof(*sm);
1602 if (size <= buf_size)
1604 sm->Reserved1 = 0; /* FIXME */
1605 sm->Reserved2 = 0; /* FIXME */
1606 sm->ImageBaseAddress = mod->BaseAddress;
1607 sm->ImageSize = mod->SizeOfImage;
1608 sm->Flags = mod->Flags;
1609 sm->Id = 0; /* FIXME */
1610 sm->Rank = 0; /* FIXME */
1611 sm->Unknown = 0; /* FIXME */
1613 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
1614 str.Buffer = sm->Name;
1615 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
1616 ptr = strrchr(sm->Name, '\\');
1617 sm->NameOffset = (ptr != NULL) ? (ptr - (char*)sm->Name + 1) : 0;
1619 smi->ModulesCount++;
1622 else nts = STATUS_INFO_LENGTH_MISMATCH;
1624 RtlLeaveCriticalSection( &loader_section );
1626 if (req_size) *req_size = size;
1631 /******************************************************************
1632 * LdrShutdownProcess (NTDLL.@)
1635 void WINAPI LdrShutdownProcess(void)
1638 process_detach( TRUE, (LPVOID)1 );
1641 /******************************************************************
1642 * LdrShutdownThread (NTDLL.@)
1645 void WINAPI LdrShutdownThread(void)
1647 PLIST_ENTRY mark, entry;
1652 /* don't do any detach calls if process is exiting */
1653 if (process_detaching) return;
1654 /* FIXME: there is still a race here */
1656 RtlEnterCriticalSection( &loader_section );
1658 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1659 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1661 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1662 InInitializationOrderModuleList);
1663 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1665 if ( mod->Flags & LDR_NO_DLL_CALLS )
1668 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1669 DLL_THREAD_DETACH, NULL );
1672 RtlLeaveCriticalSection( &loader_section );
1675 /***********************************************************************
1676 * MODULE_FlushModrefs
1678 * Remove all unused modrefs and call the internal unloading routines
1679 * for the library type.
1681 * The loader_section must be locked while calling this function.
1683 static void MODULE_FlushModrefs(void)
1685 PLIST_ENTRY mark, entry, prev;
1689 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1690 for (entry = mark->Blink; entry != mark; entry = prev)
1692 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1693 InInitializationOrderModuleList);
1694 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1696 prev = entry->Blink;
1697 if (mod->LoadCount) continue;
1699 RemoveEntryList(&mod->InLoadOrderModuleList);
1700 RemoveEntryList(&mod->InMemoryOrderModuleList);
1701 RemoveEntryList(&mod->InInitializationOrderModuleList);
1703 TRACE(" unloading %s\n", debugstr_w(mod->FullDllName.Buffer));
1704 if (!TRACE_ON(module))
1705 TRACE_(loaddll)("Unloaded module %s : %s\n",
1706 debugstr_w(mod->FullDllName.Buffer),
1707 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
1709 SERVER_START_REQ( unload_dll )
1711 req->base = mod->BaseAddress;
1712 wine_server_call( req );
1716 NtUnmapViewOfSection( GetCurrentProcess(), mod->BaseAddress );
1717 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
1718 if (cached_modref == wm) cached_modref = NULL;
1719 RtlFreeUnicodeString( &mod->FullDllName );
1720 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
1721 RtlFreeHeap( GetProcessHeap(), 0, wm );
1725 /***********************************************************************
1726 * MODULE_DecRefCount
1728 * The loader_section must be locked while calling this function.
1730 static void MODULE_DecRefCount( WINE_MODREF *wm )
1734 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
1737 if ( wm->ldr.LoadCount <= 0 )
1740 --wm->ldr.LoadCount;
1741 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
1743 if ( wm->ldr.LoadCount == 0 )
1745 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
1747 for ( i = 0; i < wm->nDeps; i++ )
1749 MODULE_DecRefCount( wm->deps[i] );
1751 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
1755 /******************************************************************
1756 * LdrUnloadDll (NTDLL.@)
1760 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
1762 NTSTATUS retv = STATUS_SUCCESS;
1764 TRACE("(%p)\n", hModule);
1766 RtlEnterCriticalSection( &loader_section );
1768 /* if we're stopping the whole process (and forcing the removal of all
1769 * DLLs) the library will be freed anyway
1771 if (!process_detaching)
1776 if ((wm = get_modref( hModule )) != NULL)
1778 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1780 /* Recursively decrement reference counts */
1781 MODULE_DecRefCount( wm );
1783 /* Call process detach notifications */
1784 if ( free_lib_count <= 1 )
1786 process_detach( FALSE, NULL );
1787 MODULE_FlushModrefs();
1793 retv = STATUS_DLL_NOT_FOUND;
1798 RtlLeaveCriticalSection( &loader_section );
1803 /***********************************************************************
1804 * RtlImageNtHeader (NTDLL.@)
1806 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
1808 IMAGE_NT_HEADERS *ret;
1812 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
1815 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
1817 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
1818 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
1821 __EXCEPT(page_fault)
1830 /******************************************************************
1831 * LdrInitializeThunk (NTDLL.@)
1833 * FIXME: the arguments are not correct, main_file is a Wine invention.
1835 void WINAPI LdrInitializeThunk( HANDLE main_file, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
1840 PEB *peb = NtCurrentTeb()->Peb;
1841 UNICODE_STRING *main_exe_name = &peb->ProcessParameters->ImagePathName;
1842 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1844 /* allocate the modref for the main exe */
1845 if (!(wm = alloc_module( peb->ImageBaseAddress, main_exe_name->Buffer )))
1847 status = STATUS_NO_MEMORY;
1850 wm->ldr.LoadCount = -1; /* can't unload main exe */
1852 /* the main exe needs to be the first in the load order list */
1853 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
1854 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
1856 /* Install signal handlers; this cannot be done before, since we cannot
1857 * send exceptions to the debugger before the create process event that
1858 * is sent by REQ_INIT_PROCESS_DONE.
1859 * We do need the handlers in place by the time the request is over, so
1860 * we set them up here. If we segfault between here and the server call
1861 * something is very wrong... */
1862 if (!SIGNAL_Init()) exit(1);
1864 /* Signal the parent process to continue */
1865 SERVER_START_REQ( init_process_done )
1867 req->module = peb->ImageBaseAddress;
1868 req->module_size = wm->ldr.SizeOfImage;
1869 req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint;
1870 /* API requires a double indirection */
1871 req->name = &main_exe_name->Buffer;
1872 req->exe_file = main_file;
1873 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1874 wine_server_add_data( req, main_exe_name->Buffer, main_exe_name->Length );
1875 wine_server_call( req );
1879 if (main_file) NtClose( main_file ); /* we no longer need it */
1881 if (TRACE_ON(relay) || TRACE_ON(snoop))
1883 RELAY_InitDebugLists();
1885 if (TRACE_ON(relay)) /* setup relay for already loaded dlls */
1887 LIST_ENTRY *entry, *mark = &peb->LdrData->InLoadOrderModuleList;
1888 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1890 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1891 if (mod->Flags & LDR_WINE_INTERNAL) RELAY_SetupDLL( mod->BaseAddress );
1896 RtlEnterCriticalSection( &loader_section );
1898 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1899 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
1900 if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
1901 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
1902 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS) goto error;
1904 RtlLeaveCriticalSection( &loader_section );
1906 if (nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE) VIRTUAL_UseLargeAddressSpace();
1910 ERR( "Main exe initialization for %s failed, status %lx\n", debugstr_w(main_exe_name->Buffer), status );
1915 /***********************************************************************
1916 * RtlImageDirectoryEntryToData (NTDLL.@)
1918 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
1920 const IMAGE_NT_HEADERS *nt;
1923 if ((ULONG_PTR)module & 1) /* mapped as data file */
1925 module = (HMODULE)((ULONG_PTR)module & ~1);
1928 if (!(nt = RtlImageNtHeader( module ))) return NULL;
1929 if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
1930 if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
1931 *size = nt->OptionalHeader.DataDirectory[dir].Size;
1932 if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
1934 /* not mapped as image, need to find the section containing the virtual address */
1935 return RtlImageRvaToVa( nt, module, addr, NULL );
1939 /***********************************************************************
1940 * RtlImageRvaToSection (NTDLL.@)
1942 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
1943 HMODULE module, DWORD rva )
1946 const IMAGE_SECTION_HEADER *sec;
1948 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
1949 nt->FileHeader.SizeOfOptionalHeader);
1950 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
1952 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
1953 return (PIMAGE_SECTION_HEADER)sec;
1959 /***********************************************************************
1960 * RtlImageRvaToVa (NTDLL.@)
1962 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
1963 DWORD rva, IMAGE_SECTION_HEADER **section )
1965 IMAGE_SECTION_HEADER *sec;
1967 if (section && *section) /* try this section first */
1970 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
1973 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
1975 if (section) *section = sec;
1976 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
1980 /******************************************************************
1981 * __wine_init_windows_dir (NTDLL.@)
1983 * Windows and system dir initialization once kernel32 has been loaded.
1985 void __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
1987 PLIST_ENTRY mark, entry;
1990 RtlCreateUnicodeString( &system_dir, sysdir );
1992 /* prepend the system dir to the name of the already created modules */
1993 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1994 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1996 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
1998 assert( mod->Flags & LDR_WINE_INTERNAL );
2000 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
2001 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
2002 if (!buffer) continue;
2003 strcpyW( buffer, system_dir.Buffer );
2004 p = buffer + strlenW( buffer );
2005 if (p > buffer && p[-1] != '\\') *p++ = '\\';
2006 strcpyW( p, mod->FullDllName.Buffer );
2007 RtlInitUnicodeString( &mod->FullDllName, buffer );
2008 RtlInitUnicodeString( &mod->BaseDllName, p );
2013 /***********************************************************************
2014 * __wine_process_init
2016 void __wine_process_init( int argc, char *argv[] )
2018 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
2022 ANSI_STRING func_name;
2023 void (* DECLSPEC_NORETURN init_func)();
2024 extern mode_t FILE_umask;
2028 /* retrieve current umask */
2029 FILE_umask = umask(0777);
2030 umask( FILE_umask );
2032 /* setup the load callback and create ntdll modref */
2033 wine_dll_set_callback( load_builtin_callback );
2035 if ((status = load_builtin_dll( NULL, kernel32W, 0, &wm )) != STATUS_SUCCESS)
2037 MESSAGE( "wine: could not load kernel32.dll, status %lx\n", status );
2040 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
2041 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
2042 0, (void **)&init_func )) != STATUS_SUCCESS)
2044 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %lx\n", status );