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
33 #include "wine/exception.h"
35 #include "wine/unicode.h"
36 #include "wine/debug.h"
37 #include "wine/server.h"
38 #include "ntdll_misc.h"
40 WINE_DEFAULT_DEBUG_CHANNEL(module);
41 WINE_DECLARE_DEBUG_CHANNEL(relay);
42 WINE_DECLARE_DEBUG_CHANNEL(snoop);
43 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
45 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
47 static int process_detaching = 0; /* set on process detach to avoid deadlocks with thread detach */
48 static int free_lib_count; /* recursion depth of LdrUnloadDll calls */
50 /* filter for page-fault exceptions */
51 static WINE_EXCEPTION_FILTER(page_fault)
53 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
54 return EXCEPTION_EXECUTE_HANDLER;
55 return EXCEPTION_CONTINUE_SEARCH;
58 static const char * const reason_names[] =
66 static const WCHAR dllW[] = {'.','d','l','l',0};
68 /* internal representation of 32bit modules. per process. */
69 typedef struct _wine_modref
73 struct _wine_modref **deps;
76 /* info about the current builtin dll load */
77 /* used to keep track of things across the register_dll constructor call */
78 struct builtin_load_info
80 const WCHAR *load_path;
85 static struct builtin_load_info *builtin_load_info;
87 static UINT tls_module_count; /* number of modules with TLS directory */
88 static UINT tls_total_size; /* total size of TLS storage */
89 static const IMAGE_TLS_DIRECTORY **tls_dirs; /* array of TLS directories */
91 static UNICODE_STRING system_dir; /* system directory */
93 static CRITICAL_SECTION loader_section;
94 static CRITICAL_SECTION_DEBUG critsect_debug =
96 0, 0, &loader_section,
97 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
98 0, 0, { 0, (DWORD)(__FILE__ ": loader_section") }
100 static CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 };
102 static WINE_MODREF *cached_modref;
103 static WINE_MODREF *current_modref;
105 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm );
106 static FARPROC find_named_export( HMODULE module, IMAGE_EXPORT_DIRECTORY *exports,
107 DWORD exp_size, const char *name, int hint );
109 /* convert PE image VirtualAddress to Real Address */
110 inline static void *get_rva( HMODULE module, DWORD va )
112 return (void *)((char *)module + va);
115 /* check whether the file name contains a path */
116 inline static int contains_path( LPCWSTR name )
118 return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\'));
121 /* convert from straight ASCII to Unicode without depending on the current codepage */
122 inline static void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
124 while (len--) *dst++ = (unsigned char)*src++;
127 /*************************************************************************
130 * Looks for the referenced HMODULE in the current process
131 * The loader_section must be locked while calling this function.
133 static WINE_MODREF *get_modref( HMODULE hmod )
135 PLIST_ENTRY mark, entry;
138 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
140 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
141 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
143 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
144 if (mod->BaseAddress == hmod)
145 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
146 if (mod->BaseAddress > (void*)hmod) break;
152 /**********************************************************************
153 * find_basename_module
155 * Find a module from its base name.
156 * The loader_section must be locked while calling this function
158 static WINE_MODREF *find_basename_module( LPCWSTR name )
160 PLIST_ENTRY mark, entry;
162 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
163 return cached_modref;
165 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
166 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
168 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
169 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
171 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
172 return cached_modref;
179 /**********************************************************************
180 * find_fullname_module
182 * Find a module from its full path name.
183 * The loader_section must be locked while calling this function
185 static WINE_MODREF *find_fullname_module( LPCWSTR name )
187 PLIST_ENTRY mark, entry;
189 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
190 return cached_modref;
192 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
193 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
195 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
196 if (!strcmpiW( name, mod->FullDllName.Buffer ))
198 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
199 return cached_modref;
206 /*************************************************************************
207 * find_forwarded_export
209 * Find the final function pointer for a forwarded function.
210 * The loader_section must be locked while calling this function.
212 static FARPROC find_forwarded_export( HMODULE module, const char *forward )
214 IMAGE_EXPORT_DIRECTORY *exports;
218 char *end = strchr(forward, '.');
221 if (!end) return NULL;
222 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
223 ascii_to_unicode( mod_name, forward, end - forward );
224 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
226 if (!(wm = find_basename_module( mod_name )))
228 ERR("module not found for forward '%s' used by %s\n",
229 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
232 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
233 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
234 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1 );
238 ERR("function not found for forward '%s' used by %s."
239 " If you are using builtin %s, try using the native one instead.\n",
240 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
241 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
247 /*************************************************************************
248 * find_ordinal_export
250 * Find an exported function by ordinal.
251 * The exports base must have been subtracted from the ordinal already.
252 * The loader_section must be locked while calling this function.
254 static FARPROC find_ordinal_export( HMODULE module, IMAGE_EXPORT_DIRECTORY *exports,
255 DWORD exp_size, int ordinal )
258 DWORD *functions = get_rva( module, exports->AddressOfFunctions );
260 if (ordinal >= exports->NumberOfFunctions)
262 TRACE(" ordinal %ld out of range!\n", ordinal + exports->Base );
265 if (!functions[ordinal]) return NULL;
267 proc = get_rva( module, functions[ordinal] );
269 /* if the address falls into the export dir, it's a forward */
270 if (((char *)proc >= (char *)exports) && ((char *)proc < (char *)exports + exp_size))
271 return find_forwarded_export( module, (char *)proc );
275 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal );
277 if (TRACE_ON(relay) && current_modref)
279 proc = RELAY_GetProcAddress( module, exports, exp_size, proc,
280 current_modref->ldr.BaseDllName.Buffer );
286 /*************************************************************************
289 * Find an exported function by name.
290 * The loader_section must be locked while calling this function.
292 static FARPROC find_named_export( HMODULE module, IMAGE_EXPORT_DIRECTORY *exports,
293 DWORD exp_size, const char *name, int hint )
295 WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
296 DWORD *names = get_rva( module, exports->AddressOfNames );
297 int min = 0, max = exports->NumberOfNames - 1;
299 /* first check the hint */
300 if (hint >= 0 && hint <= max)
302 char *ename = get_rva( module, names[hint] );
303 if (!strcmp( ename, name ))
304 return find_ordinal_export( module, exports, exp_size, ordinals[hint] );
307 /* then do a binary search */
310 int res, pos = (min + max) / 2;
311 char *ename = get_rva( module, names[pos] );
312 if (!(res = strcmp( ename, name )))
313 return find_ordinal_export( module, exports, exp_size, ordinals[pos] );
314 if (res > 0) max = pos - 1;
322 /*************************************************************************
325 * Import the dll specified by the given import descriptor.
326 * The loader_section must be locked while calling this function.
328 static WINE_MODREF *import_dll( HMODULE module, IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
333 IMAGE_EXPORT_DIRECTORY *exports;
335 IMAGE_THUNK_DATA *import_list, *thunk_list;
337 char *name = get_rva( module, descr->Name );
338 DWORD len = strlen(name) + 1;
340 if (len * sizeof(WCHAR) <= sizeof(buffer))
342 ascii_to_unicode( buffer, name, len );
343 status = load_dll( load_path, buffer, 0, &wmImp );
345 else /* need to allocate a larger buffer */
347 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) );
348 if (!ptr) return NULL;
349 ascii_to_unicode( ptr, name, len );
350 status = load_dll( load_path, ptr, 0, &wmImp );
351 RtlFreeHeap( GetProcessHeap(), 0, ptr );
356 if (status == STATUS_DLL_NOT_FOUND)
357 ERR("Module (file) %s (which is needed by %s) not found\n",
358 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
360 ERR("Loading module (file) %s (which is needed by %s) failed (error %lx).\n",
361 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
365 imp_mod = wmImp->ldr.BaseAddress;
366 if (!(exports = RtlImageDirectoryEntryToData( imp_mod, TRUE,
367 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
370 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
371 if (descr->u.OriginalFirstThunk)
372 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
374 import_list = thunk_list;
376 while (import_list->u1.Ordinal)
378 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
380 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
382 TRACE("--- Ordinal %s,%d\n", name, ordinal);
383 thunk_list->u1.Function = (PDWORD)find_ordinal_export( imp_mod, exports, exp_size,
384 ordinal - exports->Base );
385 if (!thunk_list->u1.Function)
387 ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
388 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer) );
389 thunk_list->u1.Function = (PDWORD)0xdeadbeef;
392 else /* import by name */
394 IMAGE_IMPORT_BY_NAME *pe_name;
395 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
396 TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
397 thunk_list->u1.Function = (PDWORD)find_named_export( imp_mod, exports, exp_size,
398 pe_name->Name, pe_name->Hint );
399 if (!thunk_list->u1.Function)
401 ERR("No implementation for %s.%s imported from %s, setting to 0xdeadbeef\n",
402 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer) );
403 thunk_list->u1.Function = (PDWORD)0xdeadbeef;
413 /****************************************************************
416 * Fixup all imports of a given module.
417 * The loader_section must be locked while calling this function.
419 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
422 IMAGE_IMPORT_DESCRIPTOR *imports;
426 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
427 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
428 return STATUS_SUCCESS;
430 nb_imports = size / sizeof(*imports);
431 for (i = 0; i < nb_imports; i++)
433 if (!imports[i].Name)
439 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
441 /* Allocate module dependency list */
442 wm->nDeps = nb_imports;
443 wm->deps = RtlAllocateHeap( ntdll_get_process_heap(), 0, nb_imports*sizeof(WINE_MODREF *) );
445 /* load the imported modules. They are automatically
446 * added to the modref list of the process.
448 prev = current_modref;
450 for (i = 0; i < nb_imports; i++)
452 if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path ))) break;
454 current_modref = prev;
455 if (i < nb_imports) return STATUS_DLL_NOT_FOUND;
456 return STATUS_SUCCESS;
460 /*************************************************************************
463 * Allocate a WINE_MODREF structure and add it to the process list
464 * The loader_section must be locked while calling this function.
466 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
470 IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
471 PLIST_ENTRY entry, mark;
472 BOOLEAN linked = FALSE;
475 RtlUnicodeToMultiByteSize( &len, filename, (strlenW(filename) + 1) * sizeof(WCHAR) );
476 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) + len )))
482 wm->ldr.BaseAddress = hModule;
483 wm->ldr.EntryPoint = (nt->OptionalHeader.AddressOfEntryPoint) ?
484 ((char *)hModule + nt->OptionalHeader.AddressOfEntryPoint) : 0;
485 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
487 wm->ldr.LoadCount = 0;
488 wm->ldr.TlsIndex = -1;
489 wm->ldr.SectionHandle = NULL;
490 wm->ldr.CheckSum = 0;
491 wm->ldr.TimeDateStamp = 0;
493 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
494 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
495 else p = wm->ldr.FullDllName.Buffer;
496 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
498 /* this is a bit ugly, but we need to have app module first in LoadOrder
499 * list, But in wine, ntdll is loaded first, so by inserting DLLs at the tail
500 * and app module at the head we insure that order
502 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
504 /* is first loaded module a DLL or an exec ? */
505 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
506 if (mark->Flink == mark ||
507 (CONTAINING_RECORD(mark->Flink, LDR_MODULE, InLoadOrderModuleList)->Flags & LDR_IMAGE_IS_DLL))
509 InsertHeadList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
510 &wm->ldr.InLoadOrderModuleList);
514 else wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
517 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
518 &wm->ldr.InLoadOrderModuleList);
520 /* insert module in MemoryList, sorted in increasing base addresses */
521 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
522 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
524 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
527 entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
528 wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
529 wm->ldr.InMemoryOrderModuleList.Flink = entry;
530 entry->Blink = &wm->ldr.InMemoryOrderModuleList;
532 /* wait until init is called for inserting into this list */
533 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
534 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
539 /*************************************************************************
542 * Allocate the process-wide structure for module TLS storage.
544 static NTSTATUS alloc_process_tls(void)
546 PLIST_ENTRY mark, entry;
548 IMAGE_TLS_DIRECTORY *dir;
551 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
552 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
554 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
555 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
556 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
558 size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
560 tls_total_size += size;
563 if (!tls_module_count) return STATUS_SUCCESS;
565 TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
567 tls_dirs = RtlAllocateHeap( ntdll_get_process_heap(), 0, tls_module_count * sizeof(*tls_dirs) );
568 if (!tls_dirs) return STATUS_NO_MEMORY;
570 for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
572 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
573 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
574 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
577 *dir->AddressOfIndex = i;
579 mod->LoadCount = -1; /* can't unload it */
582 return STATUS_SUCCESS;
586 /*************************************************************************
589 * Allocate the per-thread structure for module TLS storage.
591 static NTSTATUS alloc_thread_tls(void)
597 if (!tls_module_count) return STATUS_SUCCESS;
599 if (!(pointers = RtlAllocateHeap( ntdll_get_process_heap(), 0,
600 tls_module_count * sizeof(*pointers) )))
601 return STATUS_NO_MEMORY;
603 if (!(data = RtlAllocateHeap( ntdll_get_process_heap(), 0, tls_total_size )))
605 RtlFreeHeap( ntdll_get_process_heap(), 0, pointers );
606 return STATUS_NO_MEMORY;
609 for (i = 0; i < tls_module_count; i++)
611 const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
612 ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
614 TRACE( "thread %04lx idx %d: %ld/%ld bytes from %p to %p\n",
615 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill,
616 (void *)dir->StartAddressOfRawData, data );
619 memcpy( data, (void *)dir->StartAddressOfRawData, size );
621 memset( data, 0, dir->SizeOfZeroFill );
622 data += dir->SizeOfZeroFill;
624 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
625 return STATUS_SUCCESS;
629 /*************************************************************************
632 static void call_tls_callbacks( HMODULE module, UINT reason )
634 const IMAGE_TLS_DIRECTORY *dir;
635 const PIMAGE_TLS_CALLBACK *callback;
638 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
639 if (!dir || !dir->AddressOfCallBacks) return;
641 for (callback = dir->AddressOfCallBacks; *callback; callback++)
644 DPRINTF("%04lx:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
645 GetCurrentThreadId(), *callback, module, reason_names[reason] );
646 (*callback)( module, reason, NULL );
648 DPRINTF("%04lx:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
649 GetCurrentThreadId(), *callback, module, reason_names[reason] );
654 /*************************************************************************
657 static BOOL MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
661 DLLENTRYPROC entry = wm->ldr.EntryPoint;
662 void *module = wm->ldr.BaseAddress;
664 /* Skip calls for modules loaded with special load flags */
666 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return TRUE;
667 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
668 if (!entry || !(wm->ldr.Flags & LDR_IMAGE_IS_DLL)) return TRUE;
672 size_t len = max( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
673 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
674 mod_name[len / sizeof(WCHAR)] = 0;
675 DPRINTF("%04lx:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
676 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
677 reason_names[reason], lpReserved );
679 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
680 reason_names[reason], lpReserved );
682 retv = entry( module, reason, lpReserved );
684 /* The state of the module list may have changed due to the call
685 to the dll. We cannot assume that this module has not been
688 DPRINTF("%04lx:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
689 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
690 reason_names[reason], lpReserved, retv );
691 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
697 /*************************************************************************
700 * Send the process attach notification to all DLLs the given module
701 * depends on (recursively). This is somewhat complicated due to the fact that
703 * - we have to respect the module dependencies, i.e. modules implicitly
704 * referenced by another module have to be initialized before the module
705 * itself can be initialized
707 * - the initialization routine of a DLL can itself call LoadLibrary,
708 * thereby introducing a whole new set of dependencies (even involving
709 * the 'old' modules) at any time during the whole process
711 * (Note that this routine can be recursively entered not only directly
712 * from itself, but also via LoadLibrary from one of the called initialization
715 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
716 * the process *detach* notifications to be sent in the correct order.
717 * This must not only take into account module dependencies, but also
718 * 'hidden' dependencies created by modules calling LoadLibrary in their
719 * attach notification routine.
721 * The strategy is rather simple: we move a WINE_MODREF to the head of the
722 * list after the attach notification has returned. This implies that the
723 * detach notifications are called in the reverse of the sequence the attach
724 * notifications *returned*.
726 * The loader_section must be locked while calling this function.
728 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
730 NTSTATUS status = STATUS_SUCCESS;
733 /* prevent infinite recursion in case of cyclical dependencies */
734 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
735 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
738 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
740 /* Tag current MODREF to prevent recursive loop */
741 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
743 /* Recursively attach all DLLs this one depends on */
744 for ( i = 0; i < wm->nDeps; i++ )
746 if (!wm->deps[i]) continue;
747 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
750 /* Call DLL entry point */
751 if (status == STATUS_SUCCESS)
753 WINE_MODREF *prev = current_modref;
755 if (MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved ))
756 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
758 status = STATUS_DLL_INIT_FAILED;
759 current_modref = prev;
762 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
763 &wm->ldr.InInitializationOrderModuleList);
765 /* Remove recursion flag */
766 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
768 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
772 /*************************************************************************
775 * Send DLL process detach notifications. See the comment about calling
776 * sequence at process_attach. Unless the bForceDetach flag
777 * is set, only DLLs with zero refcount are notified.
779 static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
781 PLIST_ENTRY mark, entry;
784 RtlEnterCriticalSection( &loader_section );
785 if (bForceDetach) process_detaching = 1;
786 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
789 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
791 mod = CONTAINING_RECORD(entry, LDR_MODULE,
792 InInitializationOrderModuleList);
793 /* Check whether to detach this DLL */
794 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
796 if ( mod->LoadCount && !bForceDetach )
799 /* Call detach notification */
800 mod->Flags &= ~LDR_PROCESS_ATTACHED;
801 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
802 DLL_PROCESS_DETACH, lpReserved );
804 /* Restart at head of WINE_MODREF list, as entries might have
805 been added and/or removed while performing the call ... */
808 } while (entry != mark);
810 RtlLeaveCriticalSection( &loader_section );
813 /*************************************************************************
814 * MODULE_DllThreadAttach
816 * Send DLL thread attach notifications. These are sent in the
817 * reverse sequence of process detach notification.
820 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
822 PLIST_ENTRY mark, entry;
826 /* don't do any attach calls if process is exiting */
827 if (process_detaching) return STATUS_SUCCESS;
828 /* FIXME: there is still a race here */
830 RtlEnterCriticalSection( &loader_section );
832 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
834 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
835 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
837 mod = CONTAINING_RECORD(entry, LDR_MODULE,
838 InInitializationOrderModuleList);
839 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
841 if ( mod->Flags & LDR_NO_DLL_CALLS )
844 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
845 DLL_THREAD_ATTACH, lpReserved );
849 RtlLeaveCriticalSection( &loader_section );
853 /******************************************************************
854 * LdrDisableThreadCalloutsForDll (NTDLL.@)
857 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
860 NTSTATUS ret = STATUS_SUCCESS;
862 RtlEnterCriticalSection( &loader_section );
864 wm = get_modref( hModule );
865 if (!wm || wm->ldr.TlsIndex != -1)
866 ret = STATUS_DLL_NOT_FOUND;
868 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
870 RtlLeaveCriticalSection( &loader_section );
875 /******************************************************************
876 * LdrFindEntryForAddress (NTDLL.@)
878 * The loader_section must be locked while calling this function
880 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
882 PLIST_ENTRY mark, entry;
885 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
886 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
888 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
889 if ((const void *)mod->BaseAddress <= addr &&
890 (char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
893 return STATUS_SUCCESS;
895 if ((const void *)mod->BaseAddress > addr) break;
897 return STATUS_NO_MORE_ENTRIES;
900 /******************************************************************
901 * LdrLockLoaderLock (NTDLL.@)
903 * Note: flags are not implemented.
904 * Flag 0x01 is used to raise exceptions on errors.
905 * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
907 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
909 if (flags) FIXME( "flags %lx not supported\n", flags );
911 if (result) *result = 1;
912 if (!magic) return STATUS_INVALID_PARAMETER_3;
913 RtlEnterCriticalSection( &loader_section );
914 *magic = GetCurrentThreadId();
915 return STATUS_SUCCESS;
919 /******************************************************************
920 * LdrUnlockLoaderUnlock (NTDLL.@)
922 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
926 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
927 RtlLeaveCriticalSection( &loader_section );
929 return STATUS_SUCCESS;
933 /******************************************************************
934 * LdrGetDllHandle (NTDLL.@)
936 NTSTATUS WINAPI LdrGetDllHandle(ULONG x, ULONG y, const UNICODE_STRING *name, HMODULE *base)
938 NTSTATUS status = STATUS_DLL_NOT_FOUND;
939 WCHAR dllname[MAX_PATH+4], *p;
941 PLIST_ENTRY mark, entry;
944 if (x != 0 || y != 0)
945 FIXME("Unknown behavior, please report\n");
947 /* Append .DLL to name if no extension present */
948 if (!(p = strrchrW( name->Buffer, '.')) || strchrW( p, '/' ) || strchrW( p, '\\'))
950 if (name->Length >= MAX_PATH) return STATUS_NAME_TOO_LONG;
951 strcpyW( dllname, name->Buffer );
952 strcatW( dllname, dllW );
953 RtlInitUnicodeString( &str, dllname );
957 RtlEnterCriticalSection( &loader_section );
961 if (RtlEqualUnicodeString( name, &cached_modref->ldr.FullDllName, TRUE ) ||
962 RtlEqualUnicodeString( name, &cached_modref->ldr.BaseDllName, TRUE ))
964 *base = cached_modref->ldr.BaseAddress;
965 status = STATUS_SUCCESS;
970 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
971 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
973 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
975 if (RtlEqualUnicodeString( name, &mod->FullDllName, TRUE ) ||
976 RtlEqualUnicodeString( name, &mod->BaseDllName, TRUE ))
978 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
979 *base = mod->BaseAddress;
980 status = STATUS_SUCCESS;
985 RtlLeaveCriticalSection( &loader_section );
986 TRACE("%lx %lx %s -> %p\n", x, y, debugstr_us(name), status ? NULL : *base);
991 /******************************************************************
992 * LdrGetProcedureAddress (NTDLL.@)
994 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
995 ULONG ord, PVOID *address)
997 IMAGE_EXPORT_DIRECTORY *exports;
999 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1001 RtlEnterCriticalSection( &loader_section );
1003 if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1004 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1006 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1 )
1007 : find_ordinal_export( module, exports, exp_size, ord - exports->Base );
1011 ret = STATUS_SUCCESS;
1016 /* check if the module itself is invalid to return the proper error */
1017 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1020 RtlLeaveCriticalSection( &loader_section );
1025 /***********************************************************************
1026 * load_builtin_callback
1028 * Load a library in memory; callback function for wine_dll_register
1030 static void load_builtin_callback( void *module, const char *filename )
1032 IMAGE_NT_HEADERS *nt;
1034 WCHAR *fullname, *p;
1038 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1041 if (!(nt = RtlImageNtHeader( module )))
1043 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1044 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1047 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
1049 /* if we already have an executable, ignore this one */
1050 if (!NtCurrentTeb()->Peb->ImageBaseAddress)
1051 NtCurrentTeb()->Peb->ImageBaseAddress = module;
1052 return; /* don't create the modref here, will be done later on */
1055 /* create the MODREF */
1057 if (!(fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1058 system_dir.MaximumLength + (strlen(filename) + 1) * sizeof(WCHAR) )))
1060 ERR( "can't load %s\n", filename );
1061 builtin_load_info->status = STATUS_NO_MEMORY;
1064 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1065 p = fullname + system_dir.Length / sizeof(WCHAR);
1066 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1067 ascii_to_unicode( p, filename, strlen(filename) + 1 );
1069 wm = alloc_module( module, fullname );
1070 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1073 ERR( "can't load %s\n", filename );
1074 builtin_load_info->status = STATUS_NO_MEMORY;
1077 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1081 if (fixup_imports( wm, builtin_load_info->load_path ) != STATUS_SUCCESS)
1083 /* the module has only be inserted in the load & memory order lists */
1084 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1085 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1086 /* FIXME: free the modref */
1087 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1090 builtin_load_info->wm = wm;
1091 TRACE( "loaded %s %p %p\n", filename, wm, module );
1093 /* send the DLL load event */
1095 SERVER_START_REQ( load_dll )
1099 req->size = nt->OptionalHeader.SizeOfImage;
1100 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1101 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1102 req->name = &wm->ldr.FullDllName.Buffer;
1103 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1104 wine_server_call( req );
1108 /* setup relay debugging entry points */
1109 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1113 /******************************************************************************
1114 * load_native_dll (internal)
1116 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1117 DWORD flags, WINE_MODREF** pwm )
1121 OBJECT_ATTRIBUTES attr;
1123 IMAGE_NT_HEADERS *nt;
1128 TRACE( "loading %s\n", debugstr_w(name) );
1130 attr.Length = sizeof(attr);
1131 attr.RootDirectory = 0;
1132 attr.ObjectName = NULL;
1133 attr.Attributes = 0;
1134 attr.SecurityDescriptor = NULL;
1135 attr.SecurityQualityOfService = NULL;
1138 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1139 &attr, &size, 0, SEC_IMAGE, file );
1140 if (status != STATUS_SUCCESS) return status;
1143 status = NtMapViewOfSection( mapping, GetCurrentProcess(),
1144 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
1146 if (status != STATUS_SUCCESS) return status;
1148 /* create the MODREF */
1150 if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
1154 if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
1156 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1158 /* the module has only be inserted in the load & memory order lists */
1159 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1160 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1162 /* FIXME: there are several more dangling references
1163 * left. Including dlls loaded by this dll before the
1164 * failed one. Unrolling is rather difficult with the
1165 * current structure and we can leave them lying
1166 * around with no problems, so we don't care.
1167 * As these might reference our wm, we don't free it.
1172 else wm->ldr.Flags |= LDR_DONT_RESOLVE_REFS;
1174 /* send DLL load event */
1176 nt = RtlImageNtHeader( module );
1178 SERVER_START_REQ( load_dll )
1182 req->size = nt->OptionalHeader.SizeOfImage;
1183 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1184 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1185 req->name = &wm->ldr.FullDllName.Buffer;
1186 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1187 wine_server_call( req );
1191 if (TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1194 return STATUS_SUCCESS;
1198 /***********************************************************************
1201 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, DWORD flags, WINE_MODREF** pwm )
1203 char error[256], dllname[MAX_PATH];
1205 const WCHAR *name, *p;
1208 struct builtin_load_info info, *prev_info;
1210 /* Fix the name in case we have a full path and extension */
1212 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1213 if ((p = strrchrW( name, '/' ))) name = p + 1;
1215 /* we don't want to depend on the current codepage here */
1216 len = strlenW( name ) + 1;
1217 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1218 for (i = 0; i < len; i++)
1220 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1221 dllname[i] = (char)name[i];
1222 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1225 /* load_library will modify info.status. Note also that load_library can be
1226 * called several times, if the .so file we're loading has dependencies.
1227 * info.status will gather all the errors we may get while loading all these
1230 info.load_path = load_path;
1231 info.status = STATUS_SUCCESS;
1233 prev_info = builtin_load_info;
1234 builtin_load_info = &info;
1235 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1236 builtin_load_info = prev_info;
1242 /* The file does not exist -> WARN() */
1243 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1244 return STATUS_DLL_NOT_FOUND;
1246 /* ERR() for all other errors (missing functions, ...) */
1247 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1248 return STATUS_PROCEDURE_NOT_FOUND;
1250 if (info.status != STATUS_SUCCESS) return info.status;
1254 /* The constructor wasn't called, this means the .so is already
1255 * loaded under a different name. We can't support multiple names
1256 * for the same module, so return an error. */
1257 return STATUS_INVALID_IMAGE_FORMAT;
1260 info.wm->ldr.SectionHandle = handle;
1261 if (strcmpiW( info.wm->ldr.BaseDllName.Buffer, name ))
1263 ERR( "loaded .so for %s but got %s instead - probably 16-bit dll\n",
1264 debugstr_w(name), debugstr_w(info.wm->ldr.BaseDllName.Buffer) );
1265 /* wine_dll_unload( handle );*/
1266 return STATUS_INVALID_IMAGE_FORMAT;
1269 return STATUS_SUCCESS;
1273 /***********************************************************************
1276 * Find the file (or already loaded module) for a given dll name.
1278 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
1279 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
1281 WCHAR *file_part, *ext;
1284 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
1286 /* we need to search for it */
1287 /* but first append .dll because RtlDosSearchPath extension handling is broken */
1288 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
1292 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
1293 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
1294 return STATUS_NO_MEMORY;
1295 strcpyW( dllname, libname );
1296 strcatW( dllname, dllW );
1297 len = RtlDosSearchPath_U( load_path, dllname, NULL, *size, filename, &file_part );
1298 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1300 else len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
1306 *size = len + sizeof(WCHAR);
1307 return STATUS_BUFFER_TOO_SMALL;
1309 if ((*pwm = find_fullname_module( filename )) != NULL) return STATUS_SUCCESS;
1311 /* check for already loaded module in a different path */
1312 if (!contains_path( libname ))
1314 if ((*pwm = find_basename_module( file_part )) != NULL) return STATUS_SUCCESS;
1316 *handle = CreateFileW( filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
1317 return STATUS_SUCCESS;
1322 if (!contains_path( libname ))
1324 /* if libname doesn't contain a path at all, we simply return the name as is,
1325 * to be loaded as builtin */
1326 len = strlenW(libname) * sizeof(WCHAR);
1327 if (len >= *size) goto overflow;
1328 strcpyW( filename, libname );
1329 if (!strchrW( filename, '.' ))
1331 len += sizeof(dllW) - sizeof(WCHAR);
1332 if (len >= *size) goto overflow;
1333 strcatW( filename, dllW );
1335 *pwm = find_basename_module( filename );
1336 return STATUS_SUCCESS;
1340 /* absolute path name, or relative path name but not found above */
1342 len = RtlGetFullPathName_U( libname, *size, filename, &file_part );
1343 if (len >= *size) goto overflow;
1344 if (file_part && !strchrW( file_part, '.' ))
1346 len += sizeof(dllW) - sizeof(WCHAR);
1347 if (len >= *size) goto overflow;
1348 strcatW( file_part, dllW );
1350 if ((*pwm = find_fullname_module( filename )) != NULL) return STATUS_SUCCESS;
1351 *handle = CreateFileW( filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
1352 return STATUS_SUCCESS;
1355 *size = len + sizeof(WCHAR);
1356 return STATUS_BUFFER_TOO_SMALL;
1360 /***********************************************************************
1361 * load_dll (internal)
1363 * Load a PE style module according to the load order.
1364 * The loader_section must be locked while calling this function.
1366 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
1369 enum loadorder_type loadorder[LOADORDER_NTYPES];
1373 const char *filetype = "";
1374 WINE_MODREF *main_exe;
1375 HANDLE handle = INVALID_HANDLE_VALUE;
1378 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
1381 size = sizeof(buffer);
1384 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
1385 if (nts == STATUS_SUCCESS) break;
1386 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1387 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
1388 /* grow the buffer and retry */
1389 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
1392 if (*pwm) /* found already loaded module */
1394 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
1396 if (((*pwm)->ldr.Flags & LDR_DONT_RESOLVE_REFS) &&
1397 !(flags & DONT_RESOLVE_DLL_REFERENCES))
1399 (*pwm)->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
1400 fixup_imports( *pwm, load_path );
1402 TRACE("Found loaded module %s for %s at %p, count=%d\n",
1403 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
1404 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
1405 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1406 return STATUS_SUCCESS;
1409 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
1410 MODULE_GetLoadOrderW( loadorder, main_exe->ldr.BaseDllName.Buffer, filename, TRUE);
1412 for (i = 0; i < LOADORDER_NTYPES; i++)
1414 if (loadorder[i] == LOADORDER_INVALID) break;
1416 switch (loadorder[i])
1419 TRACE("Trying native dll %s\n", debugstr_w(filename));
1420 if (handle == INVALID_HANDLE_VALUE) continue; /* it cannot possibly be loaded */
1421 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1422 filetype = "native";
1425 TRACE("Trying built-in %s\n", debugstr_w(filename));
1426 nts = load_builtin_dll( load_path, filename, flags, pwm );
1427 filetype = "builtin";
1430 nts = STATUS_INTERNAL_ERROR;
1434 if (nts == STATUS_SUCCESS)
1436 /* Initialize DLL just loaded */
1437 TRACE("Loaded module %s (%s) at %p\n",
1438 debugstr_w(filename), filetype, (*pwm)->ldr.BaseAddress);
1439 if (!TRACE_ON(module))
1440 TRACE_(loaddll)("Loaded module %s : %s\n", debugstr_w(filename), filetype);
1441 /* Set the ldr.LoadCount here so that an attach failure will */
1442 /* decrement the dependencies through the MODULE_FreeLibrary call. */
1443 (*pwm)->ldr.LoadCount = 1;
1444 if (handle != INVALID_HANDLE_VALUE) NtClose( handle );
1445 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1448 if (nts != STATUS_DLL_NOT_FOUND) break;
1451 WARN("Failed to load module %s; status=%lx\n", debugstr_w(libname), nts);
1452 if (handle != INVALID_HANDLE_VALUE) NtClose( handle );
1453 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1457 /******************************************************************
1458 * LdrLoadDll (NTDLL.@)
1460 NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
1461 const UNICODE_STRING *libname, HMODULE* hModule)
1466 RtlEnterCriticalSection( &loader_section );
1468 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1469 nts = load_dll( path_name, libname->Buffer, flags, &wm );
1471 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
1473 nts = process_attach( wm, NULL );
1474 if (nts != STATUS_SUCCESS)
1476 WARN("Attach failed for module %s\n", debugstr_w(libname->Buffer));
1477 LdrUnloadDll(wm->ldr.BaseAddress);
1481 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
1483 RtlLeaveCriticalSection( &loader_section );
1487 /******************************************************************
1488 * LdrQueryProcessModuleInformation
1491 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
1492 ULONG buf_size, ULONG* req_size)
1494 SYSTEM_MODULE* sm = &smi->Modules[0];
1495 ULONG size = sizeof(ULONG);
1496 NTSTATUS nts = STATUS_SUCCESS;
1499 PLIST_ENTRY mark, entry;
1502 smi->ModulesCount = 0;
1504 RtlEnterCriticalSection( &loader_section );
1505 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1506 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1508 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1509 size += sizeof(*sm);
1510 if (size <= buf_size)
1512 sm->Reserved1 = 0; /* FIXME */
1513 sm->Reserved2 = 0; /* FIXME */
1514 sm->ImageBaseAddress = mod->BaseAddress;
1515 sm->ImageSize = mod->SizeOfImage;
1516 sm->Flags = mod->Flags;
1517 sm->Id = 0; /* FIXME */
1518 sm->Rank = 0; /* FIXME */
1519 sm->Unknown = 0; /* FIXME */
1521 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
1522 str.Buffer = sm->Name;
1523 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
1524 ptr = strrchr(sm->Name, '\\');
1525 sm->NameOffset = (ptr != NULL) ? (ptr - (char*)sm->Name + 1) : 0;
1527 smi->ModulesCount++;
1530 else nts = STATUS_INFO_LENGTH_MISMATCH;
1532 RtlLeaveCriticalSection( &loader_section );
1534 if (req_size) *req_size = size;
1539 /******************************************************************
1540 * LdrShutdownProcess (NTDLL.@)
1543 void WINAPI LdrShutdownProcess(void)
1546 process_detach( TRUE, (LPVOID)1 );
1549 /******************************************************************
1550 * LdrShutdownThread (NTDLL.@)
1553 void WINAPI LdrShutdownThread(void)
1555 PLIST_ENTRY mark, entry;
1560 /* don't do any detach calls if process is exiting */
1561 if (process_detaching) return;
1562 /* FIXME: there is still a race here */
1564 RtlEnterCriticalSection( &loader_section );
1566 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1567 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1569 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1570 InInitializationOrderModuleList);
1571 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1573 if ( mod->Flags & LDR_NO_DLL_CALLS )
1576 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1577 DLL_THREAD_DETACH, NULL );
1580 RtlLeaveCriticalSection( &loader_section );
1583 /***********************************************************************
1584 * MODULE_FlushModrefs
1586 * Remove all unused modrefs and call the internal unloading routines
1587 * for the library type.
1589 * The loader_section must be locked while calling this function.
1591 static void MODULE_FlushModrefs(void)
1593 PLIST_ENTRY mark, entry, prev;
1597 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1598 for (entry = mark->Blink; entry != mark; entry = prev)
1600 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1601 InInitializationOrderModuleList);
1602 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1604 prev = entry->Blink;
1605 if (mod->LoadCount) continue;
1607 RemoveEntryList(&mod->InLoadOrderModuleList);
1608 RemoveEntryList(&mod->InMemoryOrderModuleList);
1609 RemoveEntryList(&mod->InInitializationOrderModuleList);
1611 TRACE(" unloading %s\n", debugstr_w(mod->FullDllName.Buffer));
1612 if (!TRACE_ON(module))
1613 TRACE_(loaddll)("Unloaded module %s : %s\n",
1614 debugstr_w(mod->FullDllName.Buffer),
1615 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
1617 SERVER_START_REQ( unload_dll )
1619 req->base = mod->BaseAddress;
1620 wine_server_call( req );
1624 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
1625 else NtUnmapViewOfSection( GetCurrentProcess(), mod->BaseAddress );
1626 if (cached_modref == wm) cached_modref = NULL;
1627 RtlFreeUnicodeString( &mod->FullDllName );
1628 RtlFreeHeap( ntdll_get_process_heap(), 0, wm->deps );
1629 RtlFreeHeap( ntdll_get_process_heap(), 0, wm );
1633 /***********************************************************************
1634 * MODULE_DecRefCount
1636 * The loader_section must be locked while calling this function.
1638 static void MODULE_DecRefCount( WINE_MODREF *wm )
1642 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
1645 if ( wm->ldr.LoadCount <= 0 )
1648 --wm->ldr.LoadCount;
1649 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
1651 if ( wm->ldr.LoadCount == 0 )
1653 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
1655 for ( i = 0; i < wm->nDeps; i++ )
1657 MODULE_DecRefCount( wm->deps[i] );
1659 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
1663 /******************************************************************
1664 * LdrUnloadDll (NTDLL.@)
1668 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
1670 NTSTATUS retv = STATUS_SUCCESS;
1672 TRACE("(%p)\n", hModule);
1674 RtlEnterCriticalSection( &loader_section );
1676 /* if we're stopping the whole process (and forcing the removal of all
1677 * DLLs) the library will be freed anyway
1679 if (!process_detaching)
1684 if ((wm = get_modref( hModule )) != NULL)
1686 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1688 /* Recursively decrement reference counts */
1689 MODULE_DecRefCount( wm );
1691 /* Call process detach notifications */
1692 if ( free_lib_count <= 1 )
1694 process_detach( FALSE, NULL );
1695 MODULE_FlushModrefs();
1701 retv = STATUS_DLL_NOT_FOUND;
1706 RtlLeaveCriticalSection( &loader_section );
1711 /***********************************************************************
1712 * RtlImageNtHeader (NTDLL.@)
1714 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
1716 IMAGE_NT_HEADERS *ret;
1720 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
1723 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
1725 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
1726 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
1729 __EXCEPT(page_fault)
1738 /******************************************************************
1739 * LdrInitializeThunk (NTDLL.@)
1741 * FIXME: the arguments are not correct, main_file is a Wine invention.
1743 void WINAPI LdrInitializeThunk( HANDLE main_file, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
1748 LPTHREAD_START_ROUTINE entry;
1749 PEB *peb = NtCurrentTeb()->Peb;
1750 UNICODE_STRING *main_exe_name = &peb->ProcessParameters->ImagePathName;
1751 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1753 /* allocate the modref for the main exe */
1754 if (!(wm = alloc_module( peb->ImageBaseAddress, main_exe_name->Buffer )))
1756 status = STATUS_NO_MEMORY;
1759 wm->ldr.LoadCount = -1; /* can't unload main exe */
1760 entry = wm->ldr.EntryPoint;
1762 /* Install signal handlers; this cannot be done before, since we cannot
1763 * send exceptions to the debugger before the create process event that
1764 * is sent by REQ_INIT_PROCESS_DONE.
1765 * We do need the handlers in place by the time the request is over, so
1766 * we set them up here. If we segfault between here and the server call
1767 * something is very wrong... */
1768 if (!SIGNAL_Init()) exit(1);
1770 /* Signal the parent process to continue */
1771 SERVER_START_REQ( init_process_done )
1773 req->module = peb->ImageBaseAddress;
1774 req->module_size = wm->ldr.SizeOfImage;
1776 /* API requires a double indirection */
1777 req->name = &main_exe_name->Buffer;
1778 req->exe_file = main_file;
1779 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1780 wine_server_add_data( req, main_exe_name->Buffer, main_exe_name->Length );
1781 wine_server_call( req );
1782 peb->BeingDebugged = reply->debugged;
1786 if (main_file) NtClose( main_file ); /* we no longer need it */
1787 if (TRACE_ON(relay) || TRACE_ON(snoop)) RELAY_InitDebugLists();
1789 RtlEnterCriticalSection( &loader_section );
1791 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1792 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
1793 if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
1794 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
1795 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS) goto error;
1797 RtlLeaveCriticalSection( &loader_section );
1799 if (TRACE_ON(relay))
1800 DPRINTF( "%04lx:Starting process %s (entryproc=%p)\n", GetCurrentThreadId(),
1801 debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), entry );
1803 NtCurrentTeb()->last_error = 0; /* clear error code */
1804 if (peb->BeingDebugged) DbgBreakPoint();
1805 NtTerminateProcess( GetCurrentProcess(), entry( peb ) );
1808 ERR( "Main exe initialization failed, status %lx\n", status );
1813 /***********************************************************************
1814 * RtlImageDirectoryEntryToData (NTDLL.@)
1816 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
1818 const IMAGE_NT_HEADERS *nt;
1821 if ((ULONG_PTR)module & 1) /* mapped as data file */
1823 module = (HMODULE)((ULONG_PTR)module & ~1);
1826 if (!(nt = RtlImageNtHeader( module ))) return NULL;
1827 if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
1828 if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
1829 *size = nt->OptionalHeader.DataDirectory[dir].Size;
1830 if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
1832 /* not mapped as image, need to find the section containing the virtual address */
1833 return RtlImageRvaToVa( nt, module, addr, NULL );
1837 /***********************************************************************
1838 * RtlImageRvaToSection (NTDLL.@)
1840 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
1841 HMODULE module, DWORD rva )
1844 IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader +
1845 nt->FileHeader.SizeOfOptionalHeader);
1846 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
1848 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
1855 /***********************************************************************
1856 * RtlImageRvaToVa (NTDLL.@)
1858 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
1859 DWORD rva, IMAGE_SECTION_HEADER **section )
1861 IMAGE_SECTION_HEADER *sec;
1863 if (section && *section) /* try this section first */
1866 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
1869 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
1871 if (section) *section = sec;
1872 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
1876 /***********************************************************************
1879 * Initialize loading callbacks and return HMODULE of main exe.
1880 * 'main' is the main exe in case it was already loaded from a PE file.
1882 * FIXME: this should be done differently once kernel is properly separated.
1884 HMODULE BUILTIN32_LoadExeModule( HMODULE main )
1886 static struct builtin_load_info default_info;
1888 if (!MODULE_GetSystemDirectory( &system_dir ))
1889 MESSAGE( "Couldn't get system dir in process init\n");
1890 NtCurrentTeb()->Peb->ImageBaseAddress = main;
1891 default_info.status = STATUS_SUCCESS;
1892 default_info.load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1893 builtin_load_info = &default_info;
1894 wine_dll_set_callback( load_builtin_callback );
1895 if (!NtCurrentTeb()->Peb->ImageBaseAddress)
1896 MESSAGE( "No built-in EXE module loaded! Did you create a .spec file?\n" );
1897 if (default_info.status != STATUS_SUCCESS)
1898 MESSAGE( "Error while processing initial modules\n");
1899 return NtCurrentTeb()->Peb->ImageBaseAddress;