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__ */
162 /*************************************************************************
165 * Entry point for stub functions.
167 static void stub_entry_point( const char *dll, const char *name, ... )
169 EXCEPTION_RECORD rec;
171 rec.ExceptionCode = EXCEPTION_WINE_STUB;
172 rec.ExceptionFlags = EH_NONCONTINUABLE;
173 rec.ExceptionRecord = NULL;
175 rec.ExceptionAddress = __builtin_return_address(0);
177 rec.ExceptionAddress = *((void **)&dll - 1);
179 rec.NumberParameters = 2;
180 rec.ExceptionInformation[0] = (DWORD)dll;
181 rec.ExceptionInformation[1] = (DWORD)name;
182 for (;;) RtlRaiseException( &rec );
186 #include <pshpack1.h>
189 BYTE popl_eax; /* popl %eax */
190 BYTE pushl1; /* pushl $name */
192 BYTE pushl2; /* pushl $dll */
194 BYTE pushl_eax; /* pushl %eax */
195 BYTE jmp; /* jmp stub_entry_point */
200 /*************************************************************************
203 * Allocate a stub entry point.
205 static void *allocate_stub( const char *dll, const char *name )
207 #define MAX_SIZE 65536
208 static struct stub *stubs;
209 static unsigned int nb_stubs;
212 if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return (void *)0xdeadbeef;
216 ULONG size = MAX_SIZE;
217 if (NtAllocateVirtualMemory( GetCurrentProcess(), (void **)&stubs, 0, &size,
218 MEM_COMMIT, PAGE_EXECUTE_WRITECOPY ) != STATUS_SUCCESS)
219 return (void *)0xdeadbeef;
221 stub = &stubs[nb_stubs++];
222 stub->popl_eax = 0x58; /* popl %eax */
223 stub->pushl1 = 0x68; /* pushl $name */
225 stub->pushl2 = 0x68; /* pushl $dll */
227 stub->pushl_eax = 0x50; /* pushl %eax */
228 stub->jmp = 0xe9; /* jmp stub_entry_point */
229 stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
234 static inline void *allocate_stub( const char *dll, const char *name ) { return (void *)0xdeadbeef; }
235 #endif /* __i386__ */
238 /*************************************************************************
241 * Looks for the referenced HMODULE in the current process
242 * The loader_section must be locked while calling this function.
244 static WINE_MODREF *get_modref( HMODULE hmod )
246 PLIST_ENTRY mark, entry;
249 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
251 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
252 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
254 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
255 if (mod->BaseAddress == hmod)
256 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
257 if (mod->BaseAddress > (void*)hmod) break;
263 /**********************************************************************
264 * find_basename_module
266 * Find a module from its base name.
267 * The loader_section must be locked while calling this function
269 static WINE_MODREF *find_basename_module( LPCWSTR name )
271 PLIST_ENTRY mark, entry;
273 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
274 return cached_modref;
276 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
277 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
279 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
280 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
282 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
283 return cached_modref;
290 /**********************************************************************
291 * find_fullname_module
293 * Find a module from its full path name.
294 * The loader_section must be locked while calling this function
296 static WINE_MODREF *find_fullname_module( LPCWSTR name )
298 PLIST_ENTRY mark, entry;
300 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
301 return cached_modref;
303 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
304 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
306 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
307 if (!strcmpiW( name, mod->FullDllName.Buffer ))
309 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
310 return cached_modref;
317 /*************************************************************************
318 * find_forwarded_export
320 * Find the final function pointer for a forwarded function.
321 * The loader_section must be locked while calling this function.
323 static FARPROC find_forwarded_export( HMODULE module, const char *forward )
325 const IMAGE_EXPORT_DIRECTORY *exports;
329 const char *end = strchr(forward, '.');
332 if (!end) return NULL;
333 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
334 ascii_to_unicode( mod_name, forward, end - forward );
335 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
337 if (!(wm = find_basename_module( mod_name )))
339 ERR("module not found for forward '%s' used by %s\n",
340 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
343 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
344 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
345 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1 );
349 ERR("function not found for forward '%s' used by %s."
350 " If you are using builtin %s, try using the native one instead.\n",
351 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
352 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
358 /*************************************************************************
359 * find_ordinal_export
361 * Find an exported function by ordinal.
362 * The exports base must have been subtracted from the ordinal already.
363 * The loader_section must be locked while calling this function.
365 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
366 DWORD exp_size, int ordinal )
369 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
371 if (ordinal >= exports->NumberOfFunctions)
373 TRACE(" ordinal %ld out of range!\n", ordinal + exports->Base );
376 if (!functions[ordinal]) return NULL;
378 proc = get_rva( module, functions[ordinal] );
380 /* if the address falls into the export dir, it's a forward */
381 if (((const char *)proc >= (const char *)exports) &&
382 ((const char *)proc < (const char *)exports + exp_size))
383 return find_forwarded_export( module, (const char *)proc );
387 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
388 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
392 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
393 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, user );
399 /*************************************************************************
402 * Find an exported function by name.
403 * The loader_section must be locked while calling this function.
405 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
406 DWORD exp_size, const char *name, int hint )
408 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
409 const DWORD *names = get_rva( module, exports->AddressOfNames );
410 int min = 0, max = exports->NumberOfNames - 1;
412 /* first check the hint */
413 if (hint >= 0 && hint <= max)
415 char *ename = get_rva( module, names[hint] );
416 if (!strcmp( ename, name ))
417 return find_ordinal_export( module, exports, exp_size, ordinals[hint] );
420 /* then do a binary search */
423 int res, pos = (min + max) / 2;
424 char *ename = get_rva( module, names[pos] );
425 if (!(res = strcmp( ename, name )))
426 return find_ordinal_export( module, exports, exp_size, ordinals[pos] );
427 if (res > 0) max = pos - 1;
435 /*************************************************************************
438 * Import the dll specified by the given import descriptor.
439 * The loader_section must be locked while calling this function.
441 static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
446 const IMAGE_EXPORT_DIRECTORY *exports;
448 const IMAGE_THUNK_DATA *import_list;
449 IMAGE_THUNK_DATA *thunk_list;
451 const char *name = get_rva( module, descr->Name );
452 DWORD len = strlen(name) + 1;
454 DWORD protect_size = 0;
457 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
458 if (descr->u.OriginalFirstThunk)
459 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
461 import_list = thunk_list;
463 if (len * sizeof(WCHAR) <= sizeof(buffer))
465 ascii_to_unicode( buffer, name, len );
466 status = load_dll( load_path, buffer, 0, &wmImp );
468 else /* need to allocate a larger buffer */
470 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) );
471 if (!ptr) return NULL;
472 ascii_to_unicode( ptr, name, len );
473 status = load_dll( load_path, ptr, 0, &wmImp );
474 RtlFreeHeap( GetProcessHeap(), 0, ptr );
479 if (status == STATUS_DLL_NOT_FOUND)
480 ERR("Library %s (which is needed by %s) not found\n",
481 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
483 ERR("Loading library %s (which is needed by %s) failed (error %lx).\n",
484 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
488 /* unprotect the import address table since it can be located in
489 * readonly section */
490 while (import_list[protect_size].u1.Ordinal) protect_size++;
491 protect_base = thunk_list;
492 protect_size *= sizeof(*thunk_list);
493 NtProtectVirtualMemory( GetCurrentProcess(), &protect_base,
494 &protect_size, PAGE_WRITECOPY, &protect_old );
496 imp_mod = wmImp->ldr.BaseAddress;
497 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
501 /* set all imported function to deadbeef */
502 while (import_list->u1.Ordinal)
504 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
506 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
507 WARN("No implementation for %s.%d", name, ordinal );
508 thunk_list->u1.Function = allocate_stub( name, (const char *)ordinal );
512 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
513 WARN("No implementation for %s.%s", name, pe_name->Name );
514 thunk_list->u1.Function = allocate_stub( name, pe_name->Name );
516 WARN(" imported from %s, allocating stub %p\n",
517 debugstr_w(current_modref->ldr.FullDllName.Buffer),
518 thunk_list->u1.Function );
525 while (import_list->u1.Ordinal)
527 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
529 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
531 thunk_list->u1.Function = (PDWORD)find_ordinal_export( imp_mod, exports, exp_size,
532 ordinal - exports->Base );
533 if (!thunk_list->u1.Function)
535 thunk_list->u1.Function = allocate_stub( name, (const char *)ordinal );
536 WARN("No implementation for %s.%d imported from %s, setting to %p\n",
537 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
538 thunk_list->u1.Function );
540 TRACE("--- Ordinal %s.%d = %p\n", name, ordinal, thunk_list->u1.Function );
542 else /* import by name */
544 IMAGE_IMPORT_BY_NAME *pe_name;
545 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
546 thunk_list->u1.Function = (PDWORD)find_named_export( imp_mod, exports, exp_size,
547 pe_name->Name, pe_name->Hint );
548 if (!thunk_list->u1.Function)
550 thunk_list->u1.Function = allocate_stub( name, pe_name->Name );
551 WARN("No implementation for %s.%s imported from %s, setting to %p\n",
552 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
553 thunk_list->u1.Function );
555 TRACE("--- %s %s.%d = %p\n", pe_name->Name, name, pe_name->Hint, thunk_list->u1.Function);
562 /* restore old protection of the import address table */
563 NtProtectVirtualMemory( GetCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
568 /****************************************************************
571 * Fixup all imports of a given module.
572 * The loader_section must be locked while calling this function.
574 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
577 const IMAGE_IMPORT_DESCRIPTOR *imports;
582 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
583 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
584 return STATUS_SUCCESS;
586 nb_imports = size / sizeof(*imports);
587 for (i = 0; i < nb_imports; i++)
589 if (!imports[i].Name)
595 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
597 /* Allocate module dependency list */
598 wm->nDeps = nb_imports;
599 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
601 /* load the imported modules. They are automatically
602 * added to the modref list of the process.
604 prev = current_modref;
606 status = STATUS_SUCCESS;
607 for (i = 0; i < nb_imports; i++)
609 if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path )))
610 status = STATUS_DLL_NOT_FOUND;
612 current_modref = prev;
617 /*************************************************************************
620 * Allocate a WINE_MODREF structure and add it to the process list
621 * The loader_section must be locked while calling this function.
623 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
627 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
628 PLIST_ENTRY entry, mark;
630 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
635 wm->ldr.BaseAddress = hModule;
636 wm->ldr.EntryPoint = NULL;
637 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
639 wm->ldr.LoadCount = 0;
640 wm->ldr.TlsIndex = -1;
641 wm->ldr.SectionHandle = NULL;
642 wm->ldr.CheckSum = 0;
643 wm->ldr.TimeDateStamp = 0;
645 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
646 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
647 else p = wm->ldr.FullDllName.Buffer;
648 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
650 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
652 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
653 if (nt->OptionalHeader.AddressOfEntryPoint)
654 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
657 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
658 &wm->ldr.InLoadOrderModuleList);
660 /* insert module in MemoryList, sorted in increasing base addresses */
661 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
662 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
664 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
667 entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
668 wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
669 wm->ldr.InMemoryOrderModuleList.Flink = entry;
670 entry->Blink = &wm->ldr.InMemoryOrderModuleList;
672 /* wait until init is called for inserting into this list */
673 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
674 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
679 /*************************************************************************
682 * Allocate the process-wide structure for module TLS storage.
684 static NTSTATUS alloc_process_tls(void)
686 PLIST_ENTRY mark, entry;
688 const IMAGE_TLS_DIRECTORY *dir;
691 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
692 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
694 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
695 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
696 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
698 size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
700 tls_total_size += size;
703 if (!tls_module_count) return STATUS_SUCCESS;
705 TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
707 tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) );
708 if (!tls_dirs) return STATUS_NO_MEMORY;
710 for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
712 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
713 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
714 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
717 *dir->AddressOfIndex = i;
719 mod->LoadCount = -1; /* can't unload it */
722 return STATUS_SUCCESS;
726 /*************************************************************************
729 * Allocate the per-thread structure for module TLS storage.
731 static NTSTATUS alloc_thread_tls(void)
737 if (!tls_module_count) return STATUS_SUCCESS;
739 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0,
740 tls_module_count * sizeof(*pointers) )))
741 return STATUS_NO_MEMORY;
743 if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, tls_total_size )))
745 RtlFreeHeap( GetProcessHeap(), 0, pointers );
746 return STATUS_NO_MEMORY;
749 for (i = 0; i < tls_module_count; i++)
751 const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
752 ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
754 TRACE( "thread %04lx idx %d: %ld/%ld bytes from %p to %p\n",
755 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill,
756 (void *)dir->StartAddressOfRawData, data );
759 memcpy( data, (void *)dir->StartAddressOfRawData, size );
761 memset( data, 0, dir->SizeOfZeroFill );
762 data += dir->SizeOfZeroFill;
764 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
765 return STATUS_SUCCESS;
769 /*************************************************************************
772 static void call_tls_callbacks( HMODULE module, UINT reason )
774 const IMAGE_TLS_DIRECTORY *dir;
775 const PIMAGE_TLS_CALLBACK *callback;
778 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
779 if (!dir || !dir->AddressOfCallBacks) return;
781 for (callback = dir->AddressOfCallBacks; *callback; callback++)
784 DPRINTF("%04lx:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
785 GetCurrentThreadId(), *callback, module, reason_names[reason] );
786 (*callback)( module, reason, NULL );
788 DPRINTF("%04lx:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
789 GetCurrentThreadId(), *callback, module, reason_names[reason] );
794 /*************************************************************************
797 static BOOL MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
801 DLLENTRYPROC entry = wm->ldr.EntryPoint;
802 void *module = wm->ldr.BaseAddress;
804 /* Skip calls for modules loaded with special load flags */
806 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return TRUE;
807 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
808 if (!entry) return TRUE;
812 size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
813 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
814 mod_name[len / sizeof(WCHAR)] = 0;
815 DPRINTF("%04lx:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
816 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
817 reason_names[reason], lpReserved );
819 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
820 reason_names[reason], lpReserved );
822 retv = call_dll_entry_point( entry, module, reason, lpReserved );
824 /* The state of the module list may have changed due to the call
825 to the dll. We cannot assume that this module has not been
828 DPRINTF("%04lx:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
829 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
830 reason_names[reason], lpReserved, retv );
831 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
837 /*************************************************************************
840 * Send the process attach notification to all DLLs the given module
841 * depends on (recursively). This is somewhat complicated due to the fact that
843 * - we have to respect the module dependencies, i.e. modules implicitly
844 * referenced by another module have to be initialized before the module
845 * itself can be initialized
847 * - the initialization routine of a DLL can itself call LoadLibrary,
848 * thereby introducing a whole new set of dependencies (even involving
849 * the 'old' modules) at any time during the whole process
851 * (Note that this routine can be recursively entered not only directly
852 * from itself, but also via LoadLibrary from one of the called initialization
855 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
856 * the process *detach* notifications to be sent in the correct order.
857 * This must not only take into account module dependencies, but also
858 * 'hidden' dependencies created by modules calling LoadLibrary in their
859 * attach notification routine.
861 * The strategy is rather simple: we move a WINE_MODREF to the head of the
862 * list after the attach notification has returned. This implies that the
863 * detach notifications are called in the reverse of the sequence the attach
864 * notifications *returned*.
866 * The loader_section must be locked while calling this function.
868 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
870 NTSTATUS status = STATUS_SUCCESS;
873 /* prevent infinite recursion in case of cyclical dependencies */
874 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
875 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
878 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
880 /* Tag current MODREF to prevent recursive loop */
881 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
883 /* Recursively attach all DLLs this one depends on */
884 for ( i = 0; i < wm->nDeps; i++ )
886 if (!wm->deps[i]) continue;
887 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
890 /* Call DLL entry point */
891 if (status == STATUS_SUCCESS)
893 WINE_MODREF *prev = current_modref;
895 if (MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved ))
896 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
898 status = STATUS_DLL_INIT_FAILED;
899 current_modref = prev;
902 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
903 &wm->ldr.InInitializationOrderModuleList);
905 /* Remove recursion flag */
906 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
908 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
912 /*************************************************************************
915 * Send DLL process detach notifications. See the comment about calling
916 * sequence at process_attach. Unless the bForceDetach flag
917 * is set, only DLLs with zero refcount are notified.
919 static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
921 PLIST_ENTRY mark, entry;
924 RtlEnterCriticalSection( &loader_section );
925 if (bForceDetach) process_detaching = 1;
926 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
929 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
931 mod = CONTAINING_RECORD(entry, LDR_MODULE,
932 InInitializationOrderModuleList);
933 /* Check whether to detach this DLL */
934 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
936 if ( mod->LoadCount && !bForceDetach )
939 /* Call detach notification */
940 mod->Flags &= ~LDR_PROCESS_ATTACHED;
941 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
942 DLL_PROCESS_DETACH, lpReserved );
944 /* Restart at head of WINE_MODREF list, as entries might have
945 been added and/or removed while performing the call ... */
948 } while (entry != mark);
950 RtlLeaveCriticalSection( &loader_section );
953 /*************************************************************************
954 * MODULE_DllThreadAttach
956 * Send DLL thread attach notifications. These are sent in the
957 * reverse sequence of process detach notification.
960 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
962 PLIST_ENTRY mark, entry;
966 /* don't do any attach calls if process is exiting */
967 if (process_detaching) return STATUS_SUCCESS;
968 /* FIXME: there is still a race here */
970 RtlEnterCriticalSection( &loader_section );
972 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
974 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
975 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
977 mod = CONTAINING_RECORD(entry, LDR_MODULE,
978 InInitializationOrderModuleList);
979 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
981 if ( mod->Flags & LDR_NO_DLL_CALLS )
984 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
985 DLL_THREAD_ATTACH, lpReserved );
989 RtlLeaveCriticalSection( &loader_section );
993 /******************************************************************
994 * LdrDisableThreadCalloutsForDll (NTDLL.@)
997 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
1000 NTSTATUS ret = STATUS_SUCCESS;
1002 RtlEnterCriticalSection( &loader_section );
1004 wm = get_modref( hModule );
1005 if (!wm || wm->ldr.TlsIndex != -1)
1006 ret = STATUS_DLL_NOT_FOUND;
1008 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
1010 RtlLeaveCriticalSection( &loader_section );
1015 /******************************************************************
1016 * LdrFindEntryForAddress (NTDLL.@)
1018 * The loader_section must be locked while calling this function
1020 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
1022 PLIST_ENTRY mark, entry;
1025 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
1026 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1028 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
1029 if ((const void *)mod->BaseAddress <= addr &&
1030 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
1033 return STATUS_SUCCESS;
1035 if ((const void *)mod->BaseAddress > addr) break;
1037 return STATUS_NO_MORE_ENTRIES;
1040 /******************************************************************
1041 * LdrLockLoaderLock (NTDLL.@)
1043 * Note: flags are not implemented.
1044 * Flag 0x01 is used to raise exceptions on errors.
1045 * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
1047 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
1049 if (flags) FIXME( "flags %lx not supported\n", flags );
1051 if (result) *result = 1;
1052 if (!magic) return STATUS_INVALID_PARAMETER_3;
1053 RtlEnterCriticalSection( &loader_section );
1054 *magic = GetCurrentThreadId();
1055 return STATUS_SUCCESS;
1059 /******************************************************************
1060 * LdrUnlockLoaderUnlock (NTDLL.@)
1062 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
1066 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
1067 RtlLeaveCriticalSection( &loader_section );
1069 return STATUS_SUCCESS;
1073 /******************************************************************
1074 * LdrGetDllHandle (NTDLL.@)
1076 NTSTATUS WINAPI LdrGetDllHandle(ULONG x, ULONG y, const UNICODE_STRING *name, HMODULE *base)
1078 NTSTATUS status = STATUS_DLL_NOT_FOUND;
1079 WCHAR dllname[MAX_PATH+4], *p;
1081 PLIST_ENTRY mark, entry;
1084 if (x != 0 || y != 0)
1085 FIXME("Unknown behavior, please report\n");
1087 /* Append .DLL to name if no extension present */
1088 if (!(p = strrchrW( name->Buffer, '.')) || strchrW( p, '/' ) || strchrW( p, '\\'))
1090 if (name->Length >= MAX_PATH) return STATUS_NAME_TOO_LONG;
1091 strcpyW( dllname, name->Buffer );
1092 strcatW( dllname, dllW );
1093 RtlInitUnicodeString( &str, dllname );
1097 RtlEnterCriticalSection( &loader_section );
1101 if (RtlEqualUnicodeString( name, &cached_modref->ldr.FullDllName, TRUE ) ||
1102 RtlEqualUnicodeString( name, &cached_modref->ldr.BaseDllName, TRUE ))
1104 *base = cached_modref->ldr.BaseAddress;
1105 status = STATUS_SUCCESS;
1110 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1111 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1113 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1115 if (RtlEqualUnicodeString( name, &mod->FullDllName, TRUE ) ||
1116 RtlEqualUnicodeString( name, &mod->BaseDllName, TRUE ))
1118 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1119 *base = mod->BaseAddress;
1120 status = STATUS_SUCCESS;
1125 RtlLeaveCriticalSection( &loader_section );
1126 TRACE("%lx %lx %s -> %p\n", x, y, debugstr_us(name), status ? NULL : *base);
1131 /******************************************************************
1132 * LdrGetProcedureAddress (NTDLL.@)
1134 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1135 ULONG ord, PVOID *address)
1137 IMAGE_EXPORT_DIRECTORY *exports;
1139 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1141 RtlEnterCriticalSection( &loader_section );
1143 if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1144 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1146 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1 )
1147 : find_ordinal_export( module, exports, exp_size, ord - exports->Base );
1151 ret = STATUS_SUCCESS;
1156 /* check if the module itself is invalid to return the proper error */
1157 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1160 RtlLeaveCriticalSection( &loader_section );
1165 /***********************************************************************
1166 * load_builtin_callback
1168 * Load a library in memory; callback function for wine_dll_register
1170 static void load_builtin_callback( void *module, const char *filename )
1172 static const WCHAR emptyW[1];
1174 IMAGE_NT_HEADERS *nt;
1176 WCHAR *fullname, *p;
1177 const WCHAR *load_path;
1181 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1184 if (!(nt = RtlImageNtHeader( module )))
1186 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1187 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1190 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
1192 /* if we already have an executable, ignore this one */
1193 if (!NtCurrentTeb()->Peb->ImageBaseAddress)
1195 NtCurrentTeb()->Peb->ImageBaseAddress = module;
1196 return; /* don't create the modref here, will be done later on */
1200 /* create the MODREF */
1202 if (!(fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1203 system_dir.MaximumLength + (strlen(filename) + 1) * sizeof(WCHAR) )))
1205 ERR( "can't load %s\n", filename );
1206 builtin_load_info->status = STATUS_NO_MEMORY;
1209 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1210 p = fullname + system_dir.Length / sizeof(WCHAR);
1211 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1212 ascii_to_unicode( p, filename, strlen(filename) + 1 );
1214 wm = alloc_module( module, fullname );
1215 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1218 ERR( "can't load %s\n", filename );
1219 builtin_load_info->status = STATUS_NO_MEMORY;
1222 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1224 NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 0, &nt->OptionalHeader.SizeOfImage,
1225 MEM_SYSTEM | MEM_IMAGE, PAGE_EXECUTE_WRITECOPY );
1229 load_path = builtin_load_info->load_path;
1230 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1231 if (!load_path) load_path = emptyW;
1232 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1234 /* the module has only be inserted in the load & memory order lists */
1235 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1236 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1237 /* FIXME: free the modref */
1238 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1241 builtin_load_info->wm = wm;
1242 TRACE( "loaded %s %p %p\n", filename, wm, module );
1244 /* send the DLL load event */
1246 SERVER_START_REQ( load_dll )
1250 req->size = nt->OptionalHeader.SizeOfImage;
1251 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1252 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1253 req->name = &wm->ldr.FullDllName.Buffer;
1254 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1255 wine_server_call( req );
1259 /* setup relay debugging entry points */
1260 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1264 /******************************************************************************
1265 * load_native_dll (internal)
1267 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1268 DWORD flags, WINE_MODREF** pwm )
1272 OBJECT_ATTRIBUTES attr;
1274 IMAGE_NT_HEADERS *nt;
1279 TRACE( "loading %s\n", debugstr_w(name) );
1281 attr.Length = sizeof(attr);
1282 attr.RootDirectory = 0;
1283 attr.ObjectName = NULL;
1284 attr.Attributes = 0;
1285 attr.SecurityDescriptor = NULL;
1286 attr.SecurityQualityOfService = NULL;
1289 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1290 &attr, &size, 0, SEC_IMAGE, file );
1291 if (status != STATUS_SUCCESS) return status;
1294 status = NtMapViewOfSection( mapping, GetCurrentProcess(),
1295 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
1297 if (status != STATUS_SUCCESS) return status;
1299 /* create the MODREF */
1301 if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
1305 if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
1307 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1309 /* the module has only be inserted in the load & memory order lists */
1310 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1311 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1313 /* FIXME: there are several more dangling references
1314 * left. Including dlls loaded by this dll before the
1315 * failed one. Unrolling is rather difficult with the
1316 * current structure and we can leave them lying
1317 * around with no problems, so we don't care.
1318 * As these might reference our wm, we don't free it.
1323 else wm->ldr.Flags |= LDR_DONT_RESOLVE_REFS;
1325 /* send DLL load event */
1327 nt = RtlImageNtHeader( module );
1329 /* don't keep the file open if the mapping is from removable media */
1330 if (!VIRTUAL_HasMapping( module )) file = 0;
1332 SERVER_START_REQ( load_dll )
1336 req->size = nt->OptionalHeader.SizeOfImage;
1337 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1338 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1339 req->name = &wm->ldr.FullDllName.Buffer;
1340 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1341 wine_server_call( req );
1345 if (TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1348 return STATUS_SUCCESS;
1352 /***********************************************************************
1355 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, DWORD flags, WINE_MODREF** pwm )
1357 char error[256], dllname[MAX_PATH];
1359 const WCHAR *name, *p;
1362 struct builtin_load_info info, *prev_info;
1364 /* Fix the name in case we have a full path and extension */
1366 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1367 if ((p = strrchrW( name, '/' ))) name = p + 1;
1369 /* we don't want to depend on the current codepage here */
1370 len = strlenW( name ) + 1;
1371 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1372 for (i = 0; i < len; i++)
1374 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1375 dllname[i] = (char)name[i];
1376 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1379 /* load_library will modify info.status. Note also that load_library can be
1380 * called several times, if the .so file we're loading has dependencies.
1381 * info.status will gather all the errors we may get while loading all these
1384 info.load_path = load_path;
1385 info.status = STATUS_SUCCESS;
1387 prev_info = builtin_load_info;
1388 builtin_load_info = &info;
1389 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1390 builtin_load_info = prev_info;
1396 /* The file does not exist -> WARN() */
1397 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1398 return STATUS_DLL_NOT_FOUND;
1400 /* ERR() for all other errors (missing functions, ...) */
1401 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1402 return STATUS_PROCEDURE_NOT_FOUND;
1404 if (info.status != STATUS_SUCCESS) return info.status;
1408 /* The constructor wasn't called, this means the .so is already
1409 * loaded under a different name. We can't support multiple names
1410 * for the same module, so return an error. */
1411 return STATUS_INVALID_IMAGE_FORMAT;
1414 info.wm->ldr.SectionHandle = handle;
1415 if (strcmpiW( info.wm->ldr.BaseDllName.Buffer, name ))
1417 ERR( "loaded .so for %s but got %s instead - probably 16-bit dll\n",
1418 debugstr_w(name), debugstr_w(info.wm->ldr.BaseDllName.Buffer) );
1419 /* wine_dll_unload( handle );*/
1420 return STATUS_INVALID_IMAGE_FORMAT;
1423 return STATUS_SUCCESS;
1427 /***********************************************************************
1430 * Find the file (or already loaded module) for a given dll name.
1432 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
1433 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
1435 OBJECT_ATTRIBUTES attr;
1437 UNICODE_STRING nt_name;
1438 WCHAR *file_part, *ext, *dllname;
1441 /* first append .dll if needed */
1444 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
1446 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
1447 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
1448 return STATUS_NO_MEMORY;
1449 strcpyW( dllname, libname );
1450 strcatW( dllname, dllW );
1454 nt_name.Buffer = NULL;
1455 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
1457 /* we need to search for it */
1458 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
1461 if (len >= *size) goto overflow;
1462 if ((*pwm = find_fullname_module( filename )) != NULL) goto found;
1464 /* check for already loaded module in a different path */
1465 if (!contains_path( libname ))
1467 if ((*pwm = find_basename_module( file_part )) != NULL) goto found;
1469 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
1471 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1472 return STATUS_NO_MEMORY;
1474 attr.Length = sizeof(attr);
1475 attr.RootDirectory = 0;
1476 attr.Attributes = OBJ_CASE_INSENSITIVE;
1477 attr.ObjectName = &nt_name;
1478 attr.SecurityDescriptor = NULL;
1479 attr.SecurityQualityOfService = NULL;
1480 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1486 if (!contains_path( libname ))
1488 /* if libname doesn't contain a path at all, we simply return the name as is,
1489 * to be loaded as builtin */
1490 len = strlenW(libname) * sizeof(WCHAR);
1491 if (len >= *size) goto overflow;
1492 strcpyW( filename, libname );
1493 *pwm = find_basename_module( filename );
1498 /* absolute path name, or relative path name but not found above */
1500 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
1502 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1503 return STATUS_NO_MEMORY;
1505 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
1506 if (len >= *size) goto overflow;
1507 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
1508 if (!(*pwm = find_fullname_module( filename )))
1510 attr.Length = sizeof(attr);
1511 attr.RootDirectory = 0;
1512 attr.Attributes = OBJ_CASE_INSENSITIVE;
1513 attr.ObjectName = &nt_name;
1514 attr.SecurityDescriptor = NULL;
1515 attr.SecurityQualityOfService = NULL;
1516 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1519 RtlFreeUnicodeString( &nt_name );
1520 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1521 return STATUS_SUCCESS;
1524 RtlFreeUnicodeString( &nt_name );
1525 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1526 *size = len + sizeof(WCHAR);
1527 return STATUS_BUFFER_TOO_SMALL;
1531 /***********************************************************************
1532 * load_dll (internal)
1534 * Load a PE style module according to the load order.
1535 * The loader_section must be locked while calling this function.
1537 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
1540 enum loadorder_type loadorder[LOADORDER_NTYPES];
1544 const char *filetype = "";
1545 WINE_MODREF *main_exe;
1549 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
1552 size = sizeof(buffer);
1555 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
1556 if (nts == STATUS_SUCCESS) break;
1557 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1558 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
1559 /* grow the buffer and retry */
1560 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
1563 if (*pwm) /* found already loaded module */
1565 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
1567 if (((*pwm)->ldr.Flags & LDR_DONT_RESOLVE_REFS) &&
1568 !(flags & DONT_RESOLVE_DLL_REFERENCES))
1570 (*pwm)->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
1571 fixup_imports( *pwm, load_path );
1573 TRACE("Found loaded module %s for %s at %p, count=%d\n",
1574 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
1575 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
1576 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1577 return STATUS_SUCCESS;
1580 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
1581 MODULE_GetLoadOrderW( loadorder, main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
1583 nts = STATUS_DLL_NOT_FOUND;
1584 for (i = 0; i < LOADORDER_NTYPES; i++)
1586 if (loadorder[i] == LOADORDER_INVALID) break;
1588 switch (loadorder[i])
1591 TRACE("Trying native dll %s\n", debugstr_w(filename));
1592 if (!handle) continue; /* it cannot possibly be loaded */
1593 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1594 filetype = "native";
1597 TRACE("Trying built-in %s\n", debugstr_w(filename));
1598 nts = load_builtin_dll( load_path, filename, flags, pwm );
1599 filetype = "builtin";
1602 nts = STATUS_INTERNAL_ERROR;
1606 if (nts == STATUS_SUCCESS)
1608 /* Initialize DLL just loaded */
1609 TRACE("Loaded module %s (%s) at %p\n",
1610 debugstr_w(filename), filetype, (*pwm)->ldr.BaseAddress);
1611 if (!TRACE_ON(module))
1612 TRACE_(loaddll)("Loaded module %s : %s\n",
1613 debugstr_w((*pwm)->ldr.FullDllName.Buffer), filetype);
1614 /* Set the ldr.LoadCount here so that an attach failure will */
1615 /* decrement the dependencies through the MODULE_FreeLibrary call. */
1616 (*pwm)->ldr.LoadCount = 1;
1617 if (handle) NtClose( handle );
1618 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1621 if (nts != STATUS_DLL_NOT_FOUND) break;
1624 WARN("Failed to load module %s; status=%lx\n", debugstr_w(libname), nts);
1625 if (handle) NtClose( handle );
1626 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1630 /******************************************************************
1631 * LdrLoadDll (NTDLL.@)
1633 NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
1634 const UNICODE_STRING *libname, HMODULE* hModule)
1639 RtlEnterCriticalSection( &loader_section );
1641 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1642 nts = load_dll( path_name, libname->Buffer, flags, &wm );
1644 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
1646 nts = process_attach( wm, NULL );
1647 if (nts != STATUS_SUCCESS)
1649 WARN("Attach failed for module %s\n", debugstr_w(libname->Buffer));
1650 LdrUnloadDll(wm->ldr.BaseAddress);
1654 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
1656 RtlLeaveCriticalSection( &loader_section );
1660 /******************************************************************
1661 * LdrQueryProcessModuleInformation
1664 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
1665 ULONG buf_size, ULONG* req_size)
1667 SYSTEM_MODULE* sm = &smi->Modules[0];
1668 ULONG size = sizeof(ULONG);
1669 NTSTATUS nts = STATUS_SUCCESS;
1672 PLIST_ENTRY mark, entry;
1675 smi->ModulesCount = 0;
1677 RtlEnterCriticalSection( &loader_section );
1678 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1679 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1681 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1682 size += sizeof(*sm);
1683 if (size <= buf_size)
1685 sm->Reserved1 = 0; /* FIXME */
1686 sm->Reserved2 = 0; /* FIXME */
1687 sm->ImageBaseAddress = mod->BaseAddress;
1688 sm->ImageSize = mod->SizeOfImage;
1689 sm->Flags = mod->Flags;
1690 sm->Id = 0; /* FIXME */
1691 sm->Rank = 0; /* FIXME */
1692 sm->Unknown = 0; /* FIXME */
1694 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
1695 str.Buffer = sm->Name;
1696 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
1697 ptr = strrchr(sm->Name, '\\');
1698 sm->NameOffset = (ptr != NULL) ? (ptr - (char*)sm->Name + 1) : 0;
1700 smi->ModulesCount++;
1703 else nts = STATUS_INFO_LENGTH_MISMATCH;
1705 RtlLeaveCriticalSection( &loader_section );
1707 if (req_size) *req_size = size;
1712 /******************************************************************
1713 * LdrShutdownProcess (NTDLL.@)
1716 void WINAPI LdrShutdownProcess(void)
1719 process_detach( TRUE, (LPVOID)1 );
1722 /******************************************************************
1723 * LdrShutdownThread (NTDLL.@)
1726 void WINAPI LdrShutdownThread(void)
1728 PLIST_ENTRY mark, entry;
1733 /* don't do any detach calls if process is exiting */
1734 if (process_detaching) return;
1735 /* FIXME: there is still a race here */
1737 RtlEnterCriticalSection( &loader_section );
1739 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1740 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1742 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1743 InInitializationOrderModuleList);
1744 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1746 if ( mod->Flags & LDR_NO_DLL_CALLS )
1749 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1750 DLL_THREAD_DETACH, NULL );
1753 RtlLeaveCriticalSection( &loader_section );
1756 /***********************************************************************
1757 * MODULE_FlushModrefs
1759 * Remove all unused modrefs and call the internal unloading routines
1760 * for the library type.
1762 * The loader_section must be locked while calling this function.
1764 static void MODULE_FlushModrefs(void)
1766 PLIST_ENTRY mark, entry, prev;
1770 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1771 for (entry = mark->Blink; entry != mark; entry = prev)
1773 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1774 InInitializationOrderModuleList);
1775 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1777 prev = entry->Blink;
1778 if (mod->LoadCount) continue;
1780 RemoveEntryList(&mod->InLoadOrderModuleList);
1781 RemoveEntryList(&mod->InMemoryOrderModuleList);
1782 RemoveEntryList(&mod->InInitializationOrderModuleList);
1784 TRACE(" unloading %s\n", debugstr_w(mod->FullDllName.Buffer));
1785 if (!TRACE_ON(module))
1786 TRACE_(loaddll)("Unloaded module %s : %s\n",
1787 debugstr_w(mod->FullDllName.Buffer),
1788 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
1790 SERVER_START_REQ( unload_dll )
1792 req->base = mod->BaseAddress;
1793 wine_server_call( req );
1797 NtUnmapViewOfSection( GetCurrentProcess(), mod->BaseAddress );
1798 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
1799 if (cached_modref == wm) cached_modref = NULL;
1800 RtlFreeUnicodeString( &mod->FullDllName );
1801 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
1802 RtlFreeHeap( GetProcessHeap(), 0, wm );
1806 /***********************************************************************
1807 * MODULE_DecRefCount
1809 * The loader_section must be locked while calling this function.
1811 static void MODULE_DecRefCount( WINE_MODREF *wm )
1815 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
1818 if ( wm->ldr.LoadCount <= 0 )
1821 --wm->ldr.LoadCount;
1822 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
1824 if ( wm->ldr.LoadCount == 0 )
1826 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
1828 for ( i = 0; i < wm->nDeps; i++ )
1830 MODULE_DecRefCount( wm->deps[i] );
1832 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
1836 /******************************************************************
1837 * LdrUnloadDll (NTDLL.@)
1841 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
1843 NTSTATUS retv = STATUS_SUCCESS;
1845 TRACE("(%p)\n", hModule);
1847 RtlEnterCriticalSection( &loader_section );
1849 /* if we're stopping the whole process (and forcing the removal of all
1850 * DLLs) the library will be freed anyway
1852 if (!process_detaching)
1857 if ((wm = get_modref( hModule )) != NULL)
1859 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1861 /* Recursively decrement reference counts */
1862 MODULE_DecRefCount( wm );
1864 /* Call process detach notifications */
1865 if ( free_lib_count <= 1 )
1867 process_detach( FALSE, NULL );
1868 MODULE_FlushModrefs();
1874 retv = STATUS_DLL_NOT_FOUND;
1879 RtlLeaveCriticalSection( &loader_section );
1884 /***********************************************************************
1885 * RtlImageNtHeader (NTDLL.@)
1887 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
1889 IMAGE_NT_HEADERS *ret;
1893 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
1896 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
1898 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
1899 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
1902 __EXCEPT(page_fault)
1911 /******************************************************************
1912 * LdrInitializeThunk (NTDLL.@)
1914 * FIXME: the arguments are not correct, main_file is a Wine invention.
1916 void WINAPI LdrInitializeThunk( HANDLE main_file, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
1921 PEB *peb = NtCurrentTeb()->Peb;
1922 UNICODE_STRING *main_exe_name = &peb->ProcessParameters->ImagePathName;
1923 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1925 /* allocate the modref for the main exe */
1926 if (!(wm = alloc_module( peb->ImageBaseAddress, main_exe_name->Buffer )))
1928 status = STATUS_NO_MEMORY;
1931 wm->ldr.LoadCount = -1; /* can't unload main exe */
1933 /* the main exe needs to be the first in the load order list */
1934 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
1935 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
1937 /* Install signal handlers; this cannot be done before, since we cannot
1938 * send exceptions to the debugger before the create process event that
1939 * is sent by REQ_INIT_PROCESS_DONE.
1940 * We do need the handlers in place by the time the request is over, so
1941 * we set them up here. If we segfault between here and the server call
1942 * something is very wrong... */
1943 if (!SIGNAL_Init()) exit(1);
1945 /* Signal the parent process to continue */
1946 SERVER_START_REQ( init_process_done )
1948 req->module = peb->ImageBaseAddress;
1949 req->module_size = wm->ldr.SizeOfImage;
1950 req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint;
1951 /* API requires a double indirection */
1952 req->name = &main_exe_name->Buffer;
1953 req->exe_file = main_file;
1954 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1955 wine_server_add_data( req, main_exe_name->Buffer, main_exe_name->Length );
1956 wine_server_call( req );
1960 if (main_file) NtClose( main_file ); /* we no longer need it */
1962 if (TRACE_ON(relay) || TRACE_ON(snoop))
1964 RELAY_InitDebugLists();
1966 if (TRACE_ON(relay)) /* setup relay for already loaded dlls */
1968 LIST_ENTRY *entry, *mark = &peb->LdrData->InLoadOrderModuleList;
1969 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1971 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1972 if (mod->Flags & LDR_WINE_INTERNAL) RELAY_SetupDLL( mod->BaseAddress );
1977 RtlEnterCriticalSection( &loader_section );
1979 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1980 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
1981 if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
1982 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
1983 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS) goto error;
1985 RtlLeaveCriticalSection( &loader_section );
1987 if (nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE) VIRTUAL_UseLargeAddressSpace();
1991 ERR( "Main exe initialization for %s failed, status %lx\n", debugstr_w(main_exe_name->Buffer), status );
1996 /***********************************************************************
1997 * RtlImageDirectoryEntryToData (NTDLL.@)
1999 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
2001 const IMAGE_NT_HEADERS *nt;
2004 if ((ULONG_PTR)module & 1) /* mapped as data file */
2006 module = (HMODULE)((ULONG_PTR)module & ~1);
2009 if (!(nt = RtlImageNtHeader( module ))) return NULL;
2010 if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
2011 if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
2012 *size = nt->OptionalHeader.DataDirectory[dir].Size;
2013 if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
2015 /* not mapped as image, need to find the section containing the virtual address */
2016 return RtlImageRvaToVa( nt, module, addr, NULL );
2020 /***********************************************************************
2021 * RtlImageRvaToSection (NTDLL.@)
2023 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
2024 HMODULE module, DWORD rva )
2027 const IMAGE_SECTION_HEADER *sec;
2029 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
2030 nt->FileHeader.SizeOfOptionalHeader);
2031 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
2033 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2034 return (PIMAGE_SECTION_HEADER)sec;
2040 /***********************************************************************
2041 * RtlImageRvaToVa (NTDLL.@)
2043 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
2044 DWORD rva, IMAGE_SECTION_HEADER **section )
2046 IMAGE_SECTION_HEADER *sec;
2048 if (section && *section) /* try this section first */
2051 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2054 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
2056 if (section) *section = sec;
2057 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
2061 /******************************************************************
2062 * __wine_init_windows_dir (NTDLL.@)
2064 * Windows and system dir initialization once kernel32 has been loaded.
2066 void __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
2068 PLIST_ENTRY mark, entry;
2071 RtlCreateUnicodeString( &system_dir, sysdir );
2073 /* prepend the system dir to the name of the already created modules */
2074 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2075 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2077 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
2079 assert( mod->Flags & LDR_WINE_INTERNAL );
2081 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
2082 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
2083 if (!buffer) continue;
2084 strcpyW( buffer, system_dir.Buffer );
2085 p = buffer + strlenW( buffer );
2086 if (p > buffer && p[-1] != '\\') *p++ = '\\';
2087 strcpyW( p, mod->FullDllName.Buffer );
2088 RtlInitUnicodeString( &mod->FullDllName, buffer );
2089 RtlInitUnicodeString( &mod->BaseDllName, p );
2094 /***********************************************************************
2095 * __wine_process_init
2097 void __wine_process_init( int argc, char *argv[] )
2099 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
2103 ANSI_STRING func_name;
2104 void (* DECLSPEC_NORETURN init_func)();
2105 extern mode_t FILE_umask;
2109 /* retrieve current umask */
2110 FILE_umask = umask(0777);
2111 umask( FILE_umask );
2113 /* setup the load callback and create ntdll modref */
2114 wine_dll_set_callback( load_builtin_callback );
2116 if ((status = load_builtin_dll( NULL, kernel32W, 0, &wm )) != STATUS_SUCCESS)
2118 MESSAGE( "wine: could not load kernel32.dll, status %lx\n", status );
2121 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
2122 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
2123 0, (void **)&init_func )) != STATUS_SUCCESS)
2125 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %lx\n", status );