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Document the ldap_add* functions.
[wine/testsucceed.git] / dlls / ntdll / loader.c
blob6deaad5c92ec66060598308ad88e5bd1c2769ad8
1 /*
2 * Loader functions
3 *
4 * Copyright 1995, 2003 Alexandre Julliard
5 * Copyright 2002 Dmitry Timoshkov for CodeWeavers
6 *
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.
11 *
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.
16 *
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
20 */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <assert.h>
26 #include <stdarg.h>
27
28 #define NONAMELESSUNION
29 #define NONAMELESSSTRUCT
30
31 #include "windef.h"
32 #include "winnt.h"
33 #include "winternl.h"
34
35 #include "module.h"
36 #include "wine/exception.h"
37 #include "excpt.h"
38 #include "wine/library.h"
39 #include "wine/unicode.h"
40 #include "wine/debug.h"
41 #include "wine/server.h"
42 #include "ntdll_misc.h"
43
44 WINE_DEFAULT_DEBUG_CHANNEL(module);
45 WINE_DECLARE_DEBUG_CHANNEL(relay);
46 WINE_DECLARE_DEBUG_CHANNEL(snoop);
47 WINE_DECLARE_DEBUG_CHANNEL(loaddll);
48 WINE_DECLARE_DEBUG_CHANNEL(imports);
49
50 typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
51
52 static int process_detaching = 0; /* set on process detach to avoid deadlocks with thread detach */
53 static int free_lib_count; /* recursion depth of LdrUnloadDll calls */
54
55 /* filter for page-fault exceptions */
56 static WINE_EXCEPTION_FILTER(page_fault)
57 {
58 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
59 return EXCEPTION_EXECUTE_HANDLER;
60 return EXCEPTION_CONTINUE_SEARCH;
61 }
62
63 static const char * const reason_names[] =
64 {
65 "PROCESS_DETACH",
66 "PROCESS_ATTACH",
67 "THREAD_ATTACH",
68 "THREAD_DETACH"
69 };
70
71 static const WCHAR dllW[] = {'.','d','l','l',0};
72
73 /* internal representation of 32bit modules. per process. */
74 typedef struct _wine_modref
75 {
76 LDR_MODULE ldr;
77 int nDeps;
78 struct _wine_modref **deps;
79 } WINE_MODREF;
80
81 /* info about the current builtin dll load */
82 /* used to keep track of things across the register_dll constructor call */
83 struct builtin_load_info
84 {
85 const WCHAR *load_path;
86 NTSTATUS status;
87 WINE_MODREF *wm;
88 };
89
90 static struct builtin_load_info default_load_info;
91 static struct builtin_load_info *builtin_load_info = &default_load_info;
92
93 static UINT tls_module_count; /* number of modules with TLS directory */
94 static UINT tls_total_size; /* total size of TLS storage */
95 static const IMAGE_TLS_DIRECTORY **tls_dirs; /* array of TLS directories */
96
97 UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
98
99 static RTL_CRITICAL_SECTION loader_section;
100 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
101 {
102 0, 0, &loader_section,
103 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
104 0, 0, { (DWORD_PTR)(__FILE__ ": loader_section") }
105 };
106 static RTL_CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 };
107
108 static WINE_MODREF *cached_modref;
109 static WINE_MODREF *current_modref;
110 static WINE_MODREF *last_failed_modref;
111
112 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm );
113 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
114 DWORD exp_size, const char *name, int hint );
115
116 /* convert PE image VirtualAddress to Real Address */
117 inline static void *get_rva( HMODULE module, DWORD va )
118 {
119 return (void *)((char *)module + va);
120 }
121
122 /* check whether the file name contains a path */
123 inline static int contains_path( LPCWSTR name )
124 {
125 return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\'));
126 }
127
128 /* convert from straight ASCII to Unicode without depending on the current codepage */
129 inline static void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
130 {
131 while (len--) *dst++ = (unsigned char)*src++;
132 }
133
134
135 /*************************************************************************
136 * call_dll_entry_point
137 *
138 * Some brain-damaged dlls (ir32_32.dll for instance) modify ebx in
139 * their entry point, so we need a small asm wrapper.
140 */
141 #ifdef __i386__
142 extern BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved );
143 __ASM_GLOBAL_FUNC(call_dll_entry_point,
144 "pushl %ebp\n\t"
145 "movl %esp,%ebp\n\t"
146 "pushl %ebx\n\t"
147 "subl $8,%esp\n\t"
148 "pushl 20(%ebp)\n\t"
149 "pushl 16(%ebp)\n\t"
150 "pushl 12(%ebp)\n\t"
151 "movl 8(%ebp),%eax\n\t"
152 "call *%eax\n\t"
153 "leal -4(%ebp),%esp\n\t"
154 "popl %ebx\n\t"
155 "popl %ebp\n\t"
156 "ret" );
157 #else /* __i386__ */
158 static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module,
159 UINT reason, void *reserved )
160 {
161 return proc( module, reason, reserved );
162 }
163 #endif /* __i386__ */
164
165
166 #ifdef __i386__
167 /*************************************************************************
168 * stub_entry_point
169 *
170 * Entry point for stub functions.
171 */
172 static void stub_entry_point( const char *dll, const char *name, ... )
173 {
174 EXCEPTION_RECORD rec;
175
176 rec.ExceptionCode = EXCEPTION_WINE_STUB;
177 rec.ExceptionFlags = EH_NONCONTINUABLE;
178 rec.ExceptionRecord = NULL;
179 #ifdef __GNUC__
180 rec.ExceptionAddress = __builtin_return_address(0);
181 #else
182 rec.ExceptionAddress = *((void **)&dll - 1);
183 #endif
184 rec.NumberParameters = 2;
185 rec.ExceptionInformation[0] = (ULONG_PTR)dll;
186 rec.ExceptionInformation[1] = (ULONG_PTR)name;
187 for (;;) RtlRaiseException( &rec );
188 }
189
190
191 #include "pshpack1.h"
192 struct stub
193 {
194 BYTE popl_eax; /* popl %eax */
195 BYTE pushl1; /* pushl $name */
196 const char *name;
197 BYTE pushl2; /* pushl $dll */
198 const char *dll;
199 BYTE pushl_eax; /* pushl %eax */
200 BYTE jmp; /* jmp stub_entry_point */
201 DWORD entry;
202 };
203 #include "poppack.h"
204
205 /*************************************************************************
206 * allocate_stub
207 *
208 * Allocate a stub entry point.
209 */
210 static ULONG_PTR allocate_stub( const char *dll, const char *name )
211 {
212 #define MAX_SIZE 65536
213 static struct stub *stubs;
214 static unsigned int nb_stubs;
215 struct stub *stub;
216
217 if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return 0xdeadbeef;
218
219 if (!stubs)
220 {
221 ULONG size = MAX_SIZE;
222 if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&stubs, 0, &size,
223 MEM_COMMIT, PAGE_EXECUTE_WRITECOPY ) != STATUS_SUCCESS)
224 return 0xdeadbeef;
225 }
226 stub = &stubs[nb_stubs++];
227 stub->popl_eax = 0x58; /* popl %eax */
228 stub->pushl1 = 0x68; /* pushl $name */
229 stub->name = name;
230 stub->pushl2 = 0x68; /* pushl $dll */
231 stub->dll = dll;
232 stub->pushl_eax = 0x50; /* pushl %eax */
233 stub->jmp = 0xe9; /* jmp stub_entry_point */
234 stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
235 return (ULONG_PTR)stub;
236 }
237
238 #else /* __i386__ */
239 static inline ULONG_PTR allocate_stub( const char *dll, const char *name ) { return 0xdeadbeef; }
240 #endif /* __i386__ */
241
242
243 /*************************************************************************
244 * get_modref
245 *
246 * Looks for the referenced HMODULE in the current process
247 * The loader_section must be locked while calling this function.
248 */
249 static WINE_MODREF *get_modref( HMODULE hmod )
250 {
251 PLIST_ENTRY mark, entry;
252 PLDR_MODULE mod;
253
254 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
255
256 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
257 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
258 {
259 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
260 if (mod->BaseAddress == hmod)
261 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
262 if (mod->BaseAddress > (void*)hmod) break;
263 }
264 return NULL;
265 }
266
267
268 /**********************************************************************
269 * find_basename_module
270 *
271 * Find a module from its base name.
272 * The loader_section must be locked while calling this function
273 */
274 static WINE_MODREF *find_basename_module( LPCWSTR name )
275 {
276 PLIST_ENTRY mark, entry;
277
278 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
279 return cached_modref;
280
281 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
282 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
283 {
284 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
285 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
286 {
287 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
288 return cached_modref;
289 }
290 }
291 return NULL;
292 }
293
294
295 /**********************************************************************
296 * find_fullname_module
297 *
298 * Find a module from its full path name.
299 * The loader_section must be locked while calling this function
300 */
301 static WINE_MODREF *find_fullname_module( LPCWSTR name )
302 {
303 PLIST_ENTRY mark, entry;
304
305 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
306 return cached_modref;
307
308 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
309 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
310 {
311 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
312 if (!strcmpiW( name, mod->FullDllName.Buffer ))
313 {
314 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
315 return cached_modref;
316 }
317 }
318 return NULL;
319 }
320
321
322 /*************************************************************************
323 * find_forwarded_export
324 *
325 * Find the final function pointer for a forwarded function.
326 * The loader_section must be locked while calling this function.
327 */
328 static FARPROC find_forwarded_export( HMODULE module, const char *forward )
329 {
330 const IMAGE_EXPORT_DIRECTORY *exports;
331 DWORD exp_size;
332 WINE_MODREF *wm;
333 WCHAR mod_name[32];
334 const char *end = strchr(forward, '.');
335 FARPROC proc = NULL;
336
337 if (!end) return NULL;
338 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
339 ascii_to_unicode( mod_name, forward, end - forward );
340 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
341
342 if (!(wm = find_basename_module( mod_name )))
343 {
344 ERR("module not found for forward '%s' used by %s\n",
345 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
346 return NULL;
347 }
348 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
349 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
350 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1 );
351
352 if (!proc)
353 {
354 ERR("function not found for forward '%s' used by %s."
355 " If you are using builtin %s, try using the native one instead.\n",
356 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
357 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
358 }
359 return proc;
360 }
361
362
363 /*************************************************************************
364 * find_ordinal_export
365 *
366 * Find an exported function by ordinal.
367 * The exports base must have been subtracted from the ordinal already.
368 * The loader_section must be locked while calling this function.
369 */
370 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
371 DWORD exp_size, int ordinal )
372 {
373 FARPROC proc;
374 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
375
376 if (ordinal >= exports->NumberOfFunctions)
377 {
378 TRACE(" ordinal %ld out of range!\n", ordinal + exports->Base );
379 return NULL;
380 }
381 if (!functions[ordinal]) return NULL;
382
383 proc = get_rva( module, functions[ordinal] );
384
385 /* if the address falls into the export dir, it's a forward */
386 if (((const char *)proc >= (const char *)exports) &&
387 ((const char *)proc < (const char *)exports + exp_size))
388 return find_forwarded_export( module, (const char *)proc );
389
390 if (TRACE_ON(snoop))
391 {
392 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
393 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
394 }
395 if (TRACE_ON(relay))
396 {
397 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
398 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, user );
399 }
400 return proc;
401 }
402
403
404 /*************************************************************************
405 * find_named_export
406 *
407 * Find an exported function by name.
408 * The loader_section must be locked while calling this function.
409 */
410 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
411 DWORD exp_size, const char *name, int hint )
412 {
413 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
414 const DWORD *names = get_rva( module, exports->AddressOfNames );
415 int min = 0, max = exports->NumberOfNames - 1;
416
417 /* first check the hint */
418 if (hint >= 0 && hint <= max)
419 {
420 char *ename = get_rva( module, names[hint] );
421 if (!strcmp( ename, name ))
422 return find_ordinal_export( module, exports, exp_size, ordinals[hint] );
423 }
424
425 /* then do a binary search */
426 while (min <= max)
427 {
428 int res, pos = (min + max) / 2;
429 char *ename = get_rva( module, names[pos] );
430 if (!(res = strcmp( ename, name )))
431 return find_ordinal_export( module, exports, exp_size, ordinals[pos] );
432 if (res > 0) max = pos - 1;
433 else min = pos + 1;
434 }
435 return NULL;
436
437 }
438
439
440 /*************************************************************************
441 * import_dll
442 *
443 * Import the dll specified by the given import descriptor.
444 * The loader_section must be locked while calling this function.
445 */
446 static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
447 {
448 NTSTATUS status;
449 WINE_MODREF *wmImp;
450 HMODULE imp_mod;
451 const IMAGE_EXPORT_DIRECTORY *exports;
452 DWORD exp_size;
453 const IMAGE_THUNK_DATA *import_list;
454 IMAGE_THUNK_DATA *thunk_list;
455 WCHAR buffer[32];
456 const char *name = get_rva( module, descr->Name );
457 DWORD len = strlen(name) + 1;
458 PVOID protect_base;
459 SIZE_T protect_size = 0;
460 DWORD protect_old;
461
462 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
463 if (descr->u.OriginalFirstThunk)
464 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
465 else
466 import_list = thunk_list;
467
468 if (len * sizeof(WCHAR) <= sizeof(buffer))
469 {
470 ascii_to_unicode( buffer, name, len );
471 status = load_dll( load_path, buffer, 0, &wmImp );
472 }
473 else /* need to allocate a larger buffer */
474 {
475 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) );
476 if (!ptr) return NULL;
477 ascii_to_unicode( ptr, name, len );
478 status = load_dll( load_path, ptr, 0, &wmImp );
479 RtlFreeHeap( GetProcessHeap(), 0, ptr );
480 }
481
482 if (status)
483 {
484 if (status == STATUS_DLL_NOT_FOUND)
485 ERR("Library %s (which is needed by %s) not found\n",
486 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
487 else
488 ERR("Loading library %s (which is needed by %s) failed (error %lx).\n",
489 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
490 return NULL;
491 }
492
493 /* unprotect the import address table since it can be located in
494 * readonly section */
495 while (import_list[protect_size].u1.Ordinal) protect_size++;
496 protect_base = thunk_list;
497 protect_size *= sizeof(*thunk_list);
498 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base,
499 &protect_size, PAGE_WRITECOPY, &protect_old );
500
501 imp_mod = wmImp->ldr.BaseAddress;
502 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
503
504 if (!exports)
505 {
506 /* set all imported function to deadbeef */
507 while (import_list->u1.Ordinal)
508 {
509 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
510 {
511 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
512 WARN("No implementation for %s.%d", name, ordinal );
513 thunk_list->u1.Function = allocate_stub( name, (const char *)ordinal );
514 }
515 else
516 {
517 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
518 WARN("No implementation for %s.%s", name, pe_name->Name );
519 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
520 }
521 WARN(" imported from %s, allocating stub %p\n",
522 debugstr_w(current_modref->ldr.FullDllName.Buffer),
523 (void *)thunk_list->u1.Function );
524 import_list++;
525 thunk_list++;
526 }
527 goto done;
528 }
529
530 while (import_list->u1.Ordinal)
531 {
532 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
533 {
534 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
535
536 thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size,
537 ordinal - exports->Base );
538 if (!thunk_list->u1.Function)
539 {
540 thunk_list->u1.Function = allocate_stub( name, (const char *)ordinal );
541 WARN("No implementation for %s.%d imported from %s, setting to %p\n",
542 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
543 (void *)thunk_list->u1.Function );
544 }
545 TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function );
546 }
547 else /* import by name */
548 {
549 IMAGE_IMPORT_BY_NAME *pe_name;
550 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
551 thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size,
552 (const char*)pe_name->Name, pe_name->Hint );
553 if (!thunk_list->u1.Function)
554 {
555 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
556 WARN("No implementation for %s.%s imported from %s, setting to %p\n",
557 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
558 (void *)thunk_list->u1.Function );
559 }
560 TRACE_(imports)("--- %s %s.%d = %p\n",
561 pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function);
562 }
563 import_list++;
564 thunk_list++;
565 }
566
567 done:
568 /* restore old protection of the import address table */
569 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
570 return wmImp;
571 }
572
573
574 /****************************************************************
575 * fixup_imports
576 *
577 * Fixup all imports of a given module.
578 * The loader_section must be locked while calling this function.
579 */
580 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
581 {
582 int i, nb_imports;
583 const IMAGE_IMPORT_DESCRIPTOR *imports;
584 WINE_MODREF *prev;
585 DWORD size;
586 NTSTATUS status;
587
588 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
589 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
590 return STATUS_SUCCESS;
591
592 nb_imports = 0;
593 while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++;
594
595 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
596
597 /* Allocate module dependency list */
598 wm->nDeps = nb_imports;
599 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
600
601 /* load the imported modules. They are automatically
602 * added to the modref list of the process.
603 */
604 prev = current_modref;
605 current_modref = wm;
606 status = STATUS_SUCCESS;
607 for (i = 0; i < nb_imports; i++)
608 {
609 if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path )))
610 status = STATUS_DLL_NOT_FOUND;
611 }
612 current_modref = prev;
613 return status;
614 }
615
616
617 /*************************************************************************
618 * alloc_module
619 *
620 * Allocate a WINE_MODREF structure and add it to the process list
621 * The loader_section must be locked while calling this function.
622 */
623 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
624 {
625 WINE_MODREF *wm;
626 const WCHAR *p;
627 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
628 PLIST_ENTRY entry, mark;
629
630 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
631
632 wm->nDeps = 0;
633 wm->deps = NULL;
634
635 wm->ldr.BaseAddress = hModule;
636 wm->ldr.EntryPoint = NULL;
637 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
638 wm->ldr.Flags = 0;
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;
644
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 );
649
650 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
651 {
652 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
653 if (nt->OptionalHeader.AddressOfEntryPoint)
654 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
655 }
656
657 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
658 &wm->ldr.InLoadOrderModuleList);
659
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)
663 {
664 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
665 break;
666 }
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;
671
672 /* wait until init is called for inserting into this list */
673 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
674 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
675 return wm;
676 }
677
678
679 /*************************************************************************
680 * alloc_process_tls
681 *
682 * Allocate the process-wide structure for module TLS storage.
683 */
684 static NTSTATUS alloc_process_tls(void)
685 {
686 PLIST_ENTRY mark, entry;
687 PLDR_MODULE mod;
688 const IMAGE_TLS_DIRECTORY *dir;
689 ULONG size, i;
690
691 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
692 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
693 {
694 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
695 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
696 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
697 continue;
698 size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
699 if (!size) continue;
700 tls_total_size += size;
701 tls_module_count++;
702 }
703 if (!tls_module_count) return STATUS_SUCCESS;
704
705 TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
706
707 tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) );
708 if (!tls_dirs) return STATUS_NO_MEMORY;
709
710 for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
711 {
712 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
713 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
714 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
715 continue;
716 tls_dirs[i] = dir;
717 *(DWORD *)dir->AddressOfIndex = i;
718 mod->TlsIndex = i;
719 mod->LoadCount = -1; /* can't unload it */
720 i++;
721 }
722 return STATUS_SUCCESS;
723 }
724
725
726 /*************************************************************************
727 * alloc_thread_tls
728 *
729 * Allocate the per-thread structure for module TLS storage.
730 */
731 static NTSTATUS alloc_thread_tls(void)
732 {
733 void **pointers;
734 char *data;
735 UINT i;
736
737 if (!tls_module_count) return STATUS_SUCCESS;
738
739 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0,
740 tls_module_count * sizeof(*pointers) )))
741 return STATUS_NO_MEMORY;
742
743 if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, tls_total_size )))
744 {
745 RtlFreeHeap( GetProcessHeap(), 0, pointers );
746 return STATUS_NO_MEMORY;
747 }
748
749 for (i = 0; i < tls_module_count; i++)
750 {
751 const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
752 ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
753
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 );
757
758 pointers[i] = data;
759 memcpy( data, (void *)dir->StartAddressOfRawData, size );
760 data += size;
761 memset( data, 0, dir->SizeOfZeroFill );
762 data += dir->SizeOfZeroFill;
763 }
764 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
765 return STATUS_SUCCESS;
766 }
767
768
769 /*************************************************************************
770 * call_tls_callbacks
771 */
772 static void call_tls_callbacks( HMODULE module, UINT reason )
773 {
774 const IMAGE_TLS_DIRECTORY *dir;
775 const PIMAGE_TLS_CALLBACK *callback;
776 ULONG dirsize;
777
778 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
779 if (!dir || !dir->AddressOfCallBacks) return;
780
781 for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
782 {
783 if (TRACE_ON(relay))
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 );
787 if (TRACE_ON(relay))
788 DPRINTF("%04lx:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
789 GetCurrentThreadId(), *callback, module, reason_names[reason] );
790 }
791 }
792
793
794 /*************************************************************************
795 * MODULE_InitDLL
796 */
797 static BOOL MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
798 {
799 WCHAR mod_name[32];
800 BOOL retv = TRUE;
801 DLLENTRYPROC entry = wm->ldr.EntryPoint;
802 void *module = wm->ldr.BaseAddress;
803
804 /* Skip calls for modules loaded with special load flags */
805
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;
809
810 if (TRACE_ON(relay))
811 {
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 );
818 }
819 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
820 reason_names[reason], lpReserved );
821
822 retv = call_dll_entry_point( entry, module, reason, lpReserved );
823
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
826 deleted. */
827 if (TRACE_ON(relay))
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 );
832
833 return retv;
834 }
835
836
837 /*************************************************************************
838 * process_attach
839 *
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
842 *
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
846 *
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
850 *
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
853 * routines.)
854 *
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.
860 *
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*.
865 *
866 * The loader_section must be locked while calling this function.
867 */
868 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
869 {
870 NTSTATUS status = STATUS_SUCCESS;
871 int i;
872
873 if (process_detaching) return status;
874
875 /* prevent infinite recursion in case of cyclical dependencies */
876 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
877 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
878 return status;
879
880 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
881
882 /* Tag current MODREF to prevent recursive loop */
883 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
884
885 /* Recursively attach all DLLs this one depends on */
886 for ( i = 0; i < wm->nDeps; i++ )
887 {
888 if (!wm->deps[i]) continue;
889 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
890 }
891
892 /* Call DLL entry point */
893 if (status == STATUS_SUCCESS)
894 {
895 WINE_MODREF *prev = current_modref;
896 current_modref = wm;
897 if (MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved ))
898 {
899 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
900 }
901 else
902 {
903 /* point to the name so LdrInitializeThunk can print it */
904 last_failed_modref = wm;
905 WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
906 status = STATUS_DLL_INIT_FAILED;
907 }
908 current_modref = prev;
909 }
910
911 if (!wm->ldr.InInitializationOrderModuleList.Flink)
912 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
913 &wm->ldr.InInitializationOrderModuleList);
914
915 /* Remove recursion flag */
916 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
917
918 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
919 return status;
920 }
921
922
923 /**********************************************************************
924 * attach_implicitly_loaded_dlls
925 *
926 * Attach to the (builtin) dlls that have been implicitly loaded because
927 * of a dependency at the Unix level, but not imported at the Win32 level.
928 */
929 static void attach_implicitly_loaded_dlls( LPVOID reserved )
930 {
931 for (;;)
932 {
933 PLIST_ENTRY mark, entry;
934
935 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
936 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
937 {
938 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
939
940 if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue;
941 TRACE( "found implicitly loaded %s, attaching to it\n",
942 debugstr_w(mod->BaseDllName.Buffer));
943 process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved );
944 break; /* restart the search from the start */
945 }
946 if (entry == mark) break; /* nothing found */
947 }
948 }
949
950
951 /*************************************************************************
952 * process_detach
953 *
954 * Send DLL process detach notifications. See the comment about calling
955 * sequence at process_attach. Unless the bForceDetach flag
956 * is set, only DLLs with zero refcount are notified.
957 */
958 static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
959 {
960 PLIST_ENTRY mark, entry;
961 PLDR_MODULE mod;
962
963 RtlEnterCriticalSection( &loader_section );
964 if (bForceDetach) process_detaching = 1;
965 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
966 do
967 {
968 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
969 {
970 mod = CONTAINING_RECORD(entry, LDR_MODULE,
971 InInitializationOrderModuleList);
972 /* Check whether to detach this DLL */
973 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
974 continue;
975 if ( mod->LoadCount && !bForceDetach )
976 continue;
977
978 /* Call detach notification */
979 mod->Flags &= ~LDR_PROCESS_ATTACHED;
980 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
981 DLL_PROCESS_DETACH, lpReserved );
982
983 /* Restart at head of WINE_MODREF list, as entries might have
984 been added and/or removed while performing the call ... */
985 break;
986 }
987 } while (entry != mark);
988
989 RtlLeaveCriticalSection( &loader_section );
990 }
991
992 /*************************************************************************
993 * MODULE_DllThreadAttach
994 *
995 * Send DLL thread attach notifications. These are sent in the
996 * reverse sequence of process detach notification.
997 *
998 */
999 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
1000 {
1001 PLIST_ENTRY mark, entry;
1002 PLDR_MODULE mod;
1003 NTSTATUS status;
1004
1005 /* don't do any attach calls if process is exiting */
1006 if (process_detaching) return STATUS_SUCCESS;
1007 /* FIXME: there is still a race here */
1008
1009 RtlEnterCriticalSection( &loader_section );
1010
1011 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
1012
1013 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1014 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1015 {
1016 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1017 InInitializationOrderModuleList);
1018 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1019 continue;
1020 if ( mod->Flags & LDR_NO_DLL_CALLS )
1021 continue;
1022
1023 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1024 DLL_THREAD_ATTACH, lpReserved );
1025 }
1026
1027 done:
1028 RtlLeaveCriticalSection( &loader_section );
1029 return status;
1030 }
1031
1032 /******************************************************************
1033 * LdrDisableThreadCalloutsForDll (NTDLL.@)
1034 *
1035 */
1036 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
1037 {
1038 WINE_MODREF *wm;
1039 NTSTATUS ret = STATUS_SUCCESS;
1040
1041 RtlEnterCriticalSection( &loader_section );
1042
1043 wm = get_modref( hModule );
1044 if (!wm || wm->ldr.TlsIndex != -1)
1045 ret = STATUS_DLL_NOT_FOUND;
1046 else
1047 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
1048
1049 RtlLeaveCriticalSection( &loader_section );
1050
1051 return ret;
1052 }
1053
1054 /******************************************************************
1055 * LdrFindEntryForAddress (NTDLL.@)
1056 *
1057 * The loader_section must be locked while calling this function
1058 */
1059 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
1060 {
1061 PLIST_ENTRY mark, entry;
1062 PLDR_MODULE mod;
1063
1064 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
1065 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1066 {
1067 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
1068 if ((const void *)mod->BaseAddress <= addr &&
1069 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
1070 {
1071 *pmod = mod;
1072 return STATUS_SUCCESS;
1073 }
1074 if ((const void *)mod->BaseAddress > addr) break;
1075 }
1076 return STATUS_NO_MORE_ENTRIES;
1077 }
1078
1079 /******************************************************************
1080 * LdrLockLoaderLock (NTDLL.@)
1081 *
1082 * Note: flags are not implemented.
1083 * Flag 0x01 is used to raise exceptions on errors.
1084 * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
1085 */
1086 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
1087 {
1088 if (flags) FIXME( "flags %lx not supported\n", flags );
1089
1090 if (result) *result = 1;
1091 if (!magic) return STATUS_INVALID_PARAMETER_3;
1092 RtlEnterCriticalSection( &loader_section );
1093 *magic = GetCurrentThreadId();
1094 return STATUS_SUCCESS;
1095 }
1096
1097
1098 /******************************************************************
1099 * LdrUnlockLoaderUnlock (NTDLL.@)
1100 */
1101 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
1102 {
1103 if (magic)
1104 {
1105 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
1106 RtlLeaveCriticalSection( &loader_section );
1107 }
1108 return STATUS_SUCCESS;
1109 }
1110
1111
1112 /******************************************************************
1113 * LdrGetDllHandle (NTDLL.@)
1114 */
1115 NTSTATUS WINAPI LdrGetDllHandle(ULONG x, ULONG y, const UNICODE_STRING *name, HMODULE *base)
1116 {
1117 NTSTATUS status = STATUS_DLL_NOT_FOUND;
1118 WCHAR dllname[MAX_PATH+4], *p;
1119 UNICODE_STRING str;
1120 PLIST_ENTRY mark, entry;
1121 PLDR_MODULE mod;
1122
1123 if (x != 0 || y != 0)
1124 FIXME("Unknown behavior, please report\n");
1125
1126 /* Append .DLL to name if no extension present */
1127 if (!(p = strrchrW( name->Buffer, '.')) || strchrW( p, '/' ) || strchrW( p, '\\'))
1128 {
1129 if (name->Length >= MAX_PATH) return STATUS_NAME_TOO_LONG;
1130 strcpyW( dllname, name->Buffer );
1131 strcatW( dllname, dllW );
1132 RtlInitUnicodeString( &str, dllname );
1133 name = &str;
1134 }
1135
1136 RtlEnterCriticalSection( &loader_section );
1137
1138 if (cached_modref)
1139 {
1140 if (RtlEqualUnicodeString( name, &cached_modref->ldr.FullDllName, TRUE ) ||
1141 RtlEqualUnicodeString( name, &cached_modref->ldr.BaseDllName, TRUE ))
1142 {
1143 *base = cached_modref->ldr.BaseAddress;
1144 status = STATUS_SUCCESS;
1145 goto done;
1146 }
1147 }
1148
1149 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1150 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1151 {
1152 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1153
1154 if (RtlEqualUnicodeString( name, &mod->FullDllName, TRUE ) ||
1155 RtlEqualUnicodeString( name, &mod->BaseDllName, TRUE ))
1156 {
1157 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1158 *base = mod->BaseAddress;
1159 status = STATUS_SUCCESS;
1160 break;
1161 }
1162 }
1163 done:
1164 RtlLeaveCriticalSection( &loader_section );
1165 TRACE("%lx %lx %s -> %p\n", x, y, debugstr_us(name), status ? NULL : *base);
1166 return status;
1167 }
1168
1169
1170 /******************************************************************
1171 * LdrGetProcedureAddress (NTDLL.@)
1172 */
1173 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1174 ULONG ord, PVOID *address)
1175 {
1176 IMAGE_EXPORT_DIRECTORY *exports;
1177 DWORD exp_size;
1178 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1179
1180 RtlEnterCriticalSection( &loader_section );
1181
1182 if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1183 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1184 {
1185 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1 )
1186 : find_ordinal_export( module, exports, exp_size, ord - exports->Base );
1187 if (proc)
1188 {
1189 *address = proc;
1190 ret = STATUS_SUCCESS;
1191 }
1192 }
1193 else
1194 {
1195 /* check if the module itself is invalid to return the proper error */
1196 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1197 }
1198
1199 RtlLeaveCriticalSection( &loader_section );
1200 return ret;
1201 }
1202
1203
1204 /***********************************************************************
1205 * load_builtin_callback
1206 *
1207 * Load a library in memory; callback function for wine_dll_register
1208 */
1209 static void load_builtin_callback( void *module, const char *filename )
1210 {
1211 static const WCHAR emptyW[1];
1212 void *addr;
1213 IMAGE_NT_HEADERS *nt;
1214 WINE_MODREF *wm;
1215 WCHAR *fullname, *p;
1216 const WCHAR *load_path;
1217
1218 if (!module)
1219 {
1220 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1221 return;
1222 }
1223 if (!(nt = RtlImageNtHeader( module )))
1224 {
1225 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1226 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1227 return;
1228 }
1229 addr = module;
1230 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &nt->OptionalHeader.SizeOfImage,
1231 MEM_SYSTEM | MEM_IMAGE, PAGE_EXECUTE_WRITECOPY );
1232 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
1233 {
1234 /* if we already have an executable, ignore this one */
1235 if (!NtCurrentTeb()->Peb->ImageBaseAddress)
1236 {
1237 NtCurrentTeb()->Peb->ImageBaseAddress = module;
1238 return; /* don't create the modref here, will be done later on */
1239 }
1240 }
1241
1242 /* create the MODREF */
1243
1244 if (!(fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1245 system_dir.MaximumLength + (strlen(filename) + 1) * sizeof(WCHAR) )))
1246 {
1247 ERR( "can't load %s\n", filename );
1248 builtin_load_info->status = STATUS_NO_MEMORY;
1249 return;
1250 }
1251 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1252 p = fullname + system_dir.Length / sizeof(WCHAR);
1253 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1254 ascii_to_unicode( p, filename, strlen(filename) + 1 );
1255
1256 wm = alloc_module( module, fullname );
1257 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1258 if (!wm)
1259 {
1260 ERR( "can't load %s\n", filename );
1261 builtin_load_info->status = STATUS_NO_MEMORY;
1262 return;
1263 }
1264 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1265
1266 /* fixup imports */
1267
1268 load_path = builtin_load_info->load_path;
1269 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1270 if (!load_path) load_path = emptyW;
1271 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1272 {
1273 /* the module has only be inserted in the load & memory order lists */
1274 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1275 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1276 /* FIXME: free the modref */
1277 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1278 return;
1279 }
1280 builtin_load_info->wm = wm;
1281 TRACE( "loaded %s %p %p\n", filename, wm, module );
1282
1283 /* send the DLL load event */
1284
1285 SERVER_START_REQ( load_dll )
1286 {
1287 req->handle = 0;
1288 req->base = module;
1289 req->size = nt->OptionalHeader.SizeOfImage;
1290 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1291 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1292 req->name = &wm->ldr.FullDllName.Buffer;
1293 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1294 wine_server_call( req );
1295 }
1296 SERVER_END_REQ;
1297
1298 /* setup relay debugging entry points */
1299 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1300 }
1301
1302
1303 /******************************************************************************
1304 * load_native_dll (internal)
1305 */
1306 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1307 DWORD flags, WINE_MODREF** pwm )
1308 {
1309 void *module;
1310 HANDLE mapping;
1311 OBJECT_ATTRIBUTES attr;
1312 LARGE_INTEGER size;
1313 IMAGE_NT_HEADERS *nt;
1314 SIZE_T len = 0;
1315 WINE_MODREF *wm;
1316 NTSTATUS status;
1317
1318 TRACE( "loading %s\n", debugstr_w(name) );
1319
1320 attr.Length = sizeof(attr);
1321 attr.RootDirectory = 0;
1322 attr.ObjectName = NULL;
1323 attr.Attributes = 0;
1324 attr.SecurityDescriptor = NULL;
1325 attr.SecurityQualityOfService = NULL;
1326 size.QuadPart = 0;
1327
1328 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1329 &attr, &size, 0, SEC_IMAGE, file );
1330 if (status != STATUS_SUCCESS) return status;
1331
1332 module = NULL;
1333 status = NtMapViewOfSection( mapping, NtCurrentProcess(),
1334 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
1335 NtClose( mapping );
1336 if (status != STATUS_SUCCESS) return status;
1337
1338 /* create the MODREF */
1339
1340 if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
1341
1342 /* fixup imports */
1343
1344 if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
1345 {
1346 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1347 {
1348 /* the module has only be inserted in the load & memory order lists */
1349 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1350 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1351
1352 /* FIXME: there are several more dangling references
1353 * left. Including dlls loaded by this dll before the
1354 * failed one. Unrolling is rather difficult with the
1355 * current structure and we can leave them lying
1356 * around with no problems, so we don't care.
1357 * As these might reference our wm, we don't free it.
1358 */
1359 return status;
1360 }
1361 }
1362 else wm->ldr.Flags |= LDR_DONT_RESOLVE_REFS;
1363
1364 /* send DLL load event */
1365
1366 nt = RtlImageNtHeader( module );
1367
1368 /* don't keep the file open if the mapping is from removable media */
1369 if (!VIRTUAL_HasMapping( module )) file = 0;
1370
1371 SERVER_START_REQ( load_dll )
1372 {
1373 req->handle = file;
1374 req->base = module;
1375 req->size = nt->OptionalHeader.SizeOfImage;
1376 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1377 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1378 req->name = &wm->ldr.FullDllName.Buffer;
1379 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1380 wine_server_call( req );
1381 }
1382 SERVER_END_REQ;
1383
1384 if (TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1385
1386 TRACE_(loaddll)( " Loaded module %s : native\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
1387
1388 *pwm = wm;
1389 return STATUS_SUCCESS;
1390 }
1391
1392
1393 /***********************************************************************
1394 * load_builtin_dll
1395 */
1396 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, DWORD flags, WINE_MODREF** pwm )
1397 {
1398 char error[256], dllname[MAX_PATH];
1399 int file_exists;
1400 const WCHAR *name, *p;
1401 DWORD len, i;
1402 void *handle;
1403 struct builtin_load_info info, *prev_info;
1404
1405 /* Fix the name in case we have a full path and extension */
1406 name = path;
1407 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1408 if ((p = strrchrW( name, '/' ))) name = p + 1;
1409
1410 /* we don't want to depend on the current codepage here */
1411 len = strlenW( name ) + 1;
1412 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1413 for (i = 0; i < len; i++)
1414 {
1415 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1416 dllname[i] = (char)name[i];
1417 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1418 }
1419
1420 /* load_library will modify info.status. Note also that load_library can be
1421 * called several times, if the .so file we're loading has dependencies.
1422 * info.status will gather all the errors we may get while loading all these
1423 * libraries
1424 */
1425 info.load_path = load_path;
1426 info.status = STATUS_SUCCESS;
1427 info.wm = NULL;
1428 prev_info = builtin_load_info;
1429 builtin_load_info = &info;
1430 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1431 builtin_load_info = prev_info;
1432
1433 if (!handle)
1434 {
1435 if (!file_exists)
1436 {
1437 /* The file does not exist -> WARN() */
1438 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1439 return STATUS_DLL_NOT_FOUND;
1440 }
1441 /* ERR() for all other errors (missing functions, ...) */
1442 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1443 return STATUS_PROCEDURE_NOT_FOUND;
1444 }
1445 if (info.status != STATUS_SUCCESS) return info.status;
1446
1447 if (!info.wm)
1448 {
1449 /* The constructor wasn't called, this means the .so is already
1450 * loaded under a different name. We can't support multiple names
1451 * for the same module, so return an error. */
1452 return STATUS_INVALID_IMAGE_FORMAT;
1453 }
1454
1455 TRACE_(loaddll)( "Loaded module %s : builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer) );
1456
1457 info.wm->ldr.SectionHandle = handle;
1458 if (strcmpiW( info.wm->ldr.BaseDllName.Buffer, name ))
1459 {
1460 ERR( "loaded .so for %s but got %s instead - probably 16-bit dll\n",
1461 debugstr_w(name), debugstr_w(info.wm->ldr.BaseDllName.Buffer) );
1462 /* wine_dll_unload( handle );*/
1463 return STATUS_INVALID_IMAGE_FORMAT;
1464 }
1465 *pwm = info.wm;
1466 return STATUS_SUCCESS;
1467 }
1468
1469
1470 /***********************************************************************
1471 * find_dll_file
1472 *
1473 * Find the file (or already loaded module) for a given dll name.
1474 */
1475 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
1476 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
1477 {
1478 OBJECT_ATTRIBUTES attr;
1479 IO_STATUS_BLOCK io;
1480 UNICODE_STRING nt_name;
1481 WCHAR *file_part, *ext, *dllname;
1482 ULONG len;
1483
1484 /* first append .dll if needed */
1485
1486 dllname = NULL;
1487 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
1488 {
1489 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
1490 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
1491 return STATUS_NO_MEMORY;
1492 strcpyW( dllname, libname );
1493 strcatW( dllname, dllW );
1494 libname = dllname;
1495 }
1496
1497 nt_name.Buffer = NULL;
1498 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
1499 {
1500 /* we need to search for it */
1501 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
1502 if (len)
1503 {
1504 if (len >= *size) goto overflow;
1505 if ((*pwm = find_fullname_module( filename )) != NULL) goto found;
1506
1507 /* check for already loaded module in a different path */
1508 if (!contains_path( libname ))
1509 {
1510 if ((*pwm = find_basename_module( file_part )) != NULL) goto found;
1511 }
1512 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
1513 {
1514 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1515 return STATUS_NO_MEMORY;
1516 }
1517 attr.Length = sizeof(attr);
1518 attr.RootDirectory = 0;
1519 attr.Attributes = OBJ_CASE_INSENSITIVE;
1520 attr.ObjectName = &nt_name;
1521 attr.SecurityDescriptor = NULL;
1522 attr.SecurityQualityOfService = NULL;
1523 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1524 goto found;
1525 }
1526
1527 /* not found */
1528
1529 if (!contains_path( libname ))
1530 {
1531 /* if libname doesn't contain a path at all, we simply return the name as is,
1532 * to be loaded as builtin */
1533 len = strlenW(libname) * sizeof(WCHAR);
1534 if (len >= *size) goto overflow;
1535 strcpyW( filename, libname );
1536 *pwm = find_basename_module( filename );
1537 goto found;
1538 }
1539 }
1540
1541 /* absolute path name, or relative path name but not found above */
1542
1543 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
1544 {
1545 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1546 return STATUS_NO_MEMORY;
1547 }
1548 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
1549 if (len >= *size) goto overflow;
1550 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
1551 if (!(*pwm = find_fullname_module( filename )))
1552 {
1553 attr.Length = sizeof(attr);
1554 attr.RootDirectory = 0;
1555 attr.Attributes = OBJ_CASE_INSENSITIVE;
1556 attr.ObjectName = &nt_name;
1557 attr.SecurityDescriptor = NULL;
1558 attr.SecurityQualityOfService = NULL;
1559 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1560 }
1561 found:
1562 RtlFreeUnicodeString( &nt_name );
1563 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1564 return STATUS_SUCCESS;
1565
1566 overflow:
1567 RtlFreeUnicodeString( &nt_name );
1568 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1569 *size = len + sizeof(WCHAR);
1570 return STATUS_BUFFER_TOO_SMALL;
1571 }
1572
1573
1574 /***********************************************************************
1575 * load_dll (internal)
1576 *
1577 * Load a PE style module according to the load order.
1578 * The loader_section must be locked while calling this function.
1579 */
1580 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
1581 {
1582 int i;
1583 enum loadorder_type loadorder[LOADORDER_NTYPES];
1584 WCHAR buffer[32];
1585 WCHAR *filename;
1586 ULONG size;
1587 const char *filetype = "";
1588 WINE_MODREF *main_exe;
1589 HANDLE handle = 0;
1590 NTSTATUS nts;
1591
1592 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
1593
1594 filename = buffer;
1595 size = sizeof(buffer);
1596 for (;;)
1597 {
1598 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
1599 if (nts == STATUS_SUCCESS) break;
1600 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1601 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
1602 /* grow the buffer and retry */
1603 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
1604 }
1605
1606 if (*pwm) /* found already loaded module */
1607 {
1608 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
1609
1610 if (((*pwm)->ldr.Flags & LDR_DONT_RESOLVE_REFS) &&
1611 !(flags & DONT_RESOLVE_DLL_REFERENCES))
1612 {
1613 (*pwm)->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
1614 fixup_imports( *pwm, load_path );
1615 }
1616 TRACE("Found loaded module %s for %s at %p, count=%d\n",
1617 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
1618 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
1619 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1620 return STATUS_SUCCESS;
1621 }
1622
1623 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
1624 MODULE_GetLoadOrderW( loadorder, main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
1625
1626 nts = STATUS_DLL_NOT_FOUND;
1627 for (i = 0; i < LOADORDER_NTYPES; i++)
1628 {
1629 if (loadorder[i] == LOADORDER_INVALID) break;
1630
1631 switch (loadorder[i])
1632 {
1633 case LOADORDER_DLL:
1634 TRACE("Trying native dll %s\n", debugstr_w(filename));
1635 if (!handle) continue; /* it cannot possibly be loaded */
1636 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1637 filetype = "native";
1638 break;
1639 case LOADORDER_BI:
1640 TRACE("Trying built-in %s\n", debugstr_w(filename));
1641 nts = load_builtin_dll( load_path, filename, flags, pwm );
1642 filetype = "builtin";
1643 break;
1644 default:
1645 nts = STATUS_INTERNAL_ERROR;
1646 break;
1647 }
1648
1649 if (nts == STATUS_SUCCESS)
1650 {
1651 /* Initialize DLL just loaded */
1652 TRACE("Loaded module %s (%s) at %p\n",
1653 debugstr_w(filename), filetype, (*pwm)->ldr.BaseAddress);
1654 /* Set the ldr.LoadCount here so that an attach failure will */
1655 /* decrement the dependencies through the MODULE_FreeLibrary call. */
1656 (*pwm)->ldr.LoadCount = 1;
1657 if (handle) NtClose( handle );
1658 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1659 return nts;
1660 }
1661 if (nts != STATUS_DLL_NOT_FOUND) break;
1662 }
1663
1664 WARN("Failed to load module %s; status=%lx\n", debugstr_w(libname), nts);
1665 if (handle) NtClose( handle );
1666 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1667 return nts;
1668 }
1669
1670 /******************************************************************
1671 * LdrLoadDll (NTDLL.@)
1672 */
1673 NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
1674 const UNICODE_STRING *libname, HMODULE* hModule)
1675 {
1676 WINE_MODREF *wm;
1677 NTSTATUS nts;
1678
1679 RtlEnterCriticalSection( &loader_section );
1680
1681 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1682 nts = load_dll( path_name, libname->Buffer, flags, &wm );
1683
1684 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
1685 {
1686 nts = process_attach( wm, NULL );
1687 if (nts != STATUS_SUCCESS)
1688 {
1689 LdrUnloadDll(wm->ldr.BaseAddress);
1690 wm = NULL;
1691 }
1692 }
1693 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
1694
1695 RtlLeaveCriticalSection( &loader_section );
1696 return nts;
1697 }
1698
1699 /******************************************************************
1700 * LdrQueryProcessModuleInformation
1701 *
1702 */
1703 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
1704 ULONG buf_size, ULONG* req_size)
1705 {
1706 SYSTEM_MODULE* sm = &smi->Modules[0];
1707 ULONG size = sizeof(ULONG);
1708 NTSTATUS nts = STATUS_SUCCESS;
1709 ANSI_STRING str;
1710 char* ptr;
1711 PLIST_ENTRY mark, entry;
1712 PLDR_MODULE mod;
1713
1714 smi->ModulesCount = 0;
1715
1716 RtlEnterCriticalSection( &loader_section );
1717 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1718 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1719 {
1720 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1721 size += sizeof(*sm);
1722 if (size <= buf_size)
1723 {
1724 sm->Reserved1 = 0; /* FIXME */
1725 sm->Reserved2 = 0; /* FIXME */
1726 sm->ImageBaseAddress = mod->BaseAddress;
1727 sm->ImageSize = mod->SizeOfImage;
1728 sm->Flags = mod->Flags;
1729 sm->Id = 0; /* FIXME */
1730 sm->Rank = 0; /* FIXME */
1731 sm->Unknown = 0; /* FIXME */
1732 str.Length = 0;
1733 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
1734 str.Buffer = (char*)sm->Name;
1735 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
1736 ptr = strrchr(str.Buffer, '\\');
1737 sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0;
1738
1739 smi->ModulesCount++;
1740 sm++;
1741 }
1742 else nts = STATUS_INFO_LENGTH_MISMATCH;
1743 }
1744 RtlLeaveCriticalSection( &loader_section );
1745
1746 if (req_size) *req_size = size;
1747
1748 return nts;
1749 }
1750
1751 /******************************************************************
1752 * LdrShutdownProcess (NTDLL.@)
1753 *
1754 */
1755 void WINAPI LdrShutdownProcess(void)
1756 {
1757 TRACE("()\n");
1758 process_detach( TRUE, (LPVOID)1 );
1759 }
1760
1761 /******************************************************************
1762 * LdrShutdownThread (NTDLL.@)
1763 *
1764 */
1765 void WINAPI LdrShutdownThread(void)
1766 {
1767 PLIST_ENTRY mark, entry;
1768 PLDR_MODULE mod;
1769
1770 TRACE("()\n");
1771
1772 /* don't do any detach calls if process is exiting */
1773 if (process_detaching) return;
1774 /* FIXME: there is still a race here */
1775
1776 RtlEnterCriticalSection( &loader_section );
1777
1778 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1779 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1780 {
1781 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1782 InInitializationOrderModuleList);
1783 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1784 continue;
1785 if ( mod->Flags & LDR_NO_DLL_CALLS )
1786 continue;
1787
1788 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1789 DLL_THREAD_DETACH, NULL );
1790 }
1791
1792 RtlLeaveCriticalSection( &loader_section );
1793 }
1794
1795 /***********************************************************************
1796 * MODULE_FlushModrefs
1797 *
1798 * Remove all unused modrefs and call the internal unloading routines
1799 * for the library type.
1800 *
1801 * The loader_section must be locked while calling this function.
1802 */
1803 static void MODULE_FlushModrefs(void)
1804 {
1805 PLIST_ENTRY mark, entry, prev;
1806 PLDR_MODULE mod;
1807 WINE_MODREF*wm;
1808
1809 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1810 for (entry = mark->Blink; entry != mark; entry = prev)
1811 {
1812 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1813 InInitializationOrderModuleList);
1814 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1815
1816 prev = entry->Blink;
1817 if (mod->LoadCount) continue;
1818
1819 RemoveEntryList(&mod->InLoadOrderModuleList);
1820 RemoveEntryList(&mod->InMemoryOrderModuleList);
1821 RemoveEntryList(&mod->InInitializationOrderModuleList);
1822
1823 TRACE(" unloading %s\n", debugstr_w(mod->FullDllName.Buffer));
1824 if (!TRACE_ON(module))
1825 TRACE_(loaddll)("Unloaded module %s : %s\n",
1826 debugstr_w(mod->FullDllName.Buffer),
1827 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
1828
1829 SERVER_START_REQ( unload_dll )
1830 {
1831 req->base = mod->BaseAddress;
1832 wine_server_call( req );
1833 }
1834 SERVER_END_REQ;
1835
1836 NtUnmapViewOfSection( NtCurrentProcess(), mod->BaseAddress );
1837 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
1838 if (cached_modref == wm) cached_modref = NULL;
1839 RtlFreeUnicodeString( &mod->FullDllName );
1840 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
1841 RtlFreeHeap( GetProcessHeap(), 0, wm );
1842 }
1843 }
1844
1845 /***********************************************************************
1846 * MODULE_DecRefCount
1847 *
1848 * The loader_section must be locked while calling this function.
1849 */
1850 static void MODULE_DecRefCount( WINE_MODREF *wm )
1851 {
1852 int i;
1853
1854 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
1855 return;
1856
1857 if ( wm->ldr.LoadCount <= 0 )
1858 return;
1859
1860 --wm->ldr.LoadCount;
1861 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
1862
1863 if ( wm->ldr.LoadCount == 0 )
1864 {
1865 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
1866
1867 for ( i = 0; i < wm->nDeps; i++ )
1868 if ( wm->deps[i] )
1869 MODULE_DecRefCount( wm->deps[i] );
1870
1871 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
1872 }
1873 }
1874
1875 /******************************************************************
1876 * LdrUnloadDll (NTDLL.@)
1877 *
1878 *
1879 */
1880 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
1881 {
1882 NTSTATUS retv = STATUS_SUCCESS;
1883
1884 TRACE("(%p)\n", hModule);
1885
1886 RtlEnterCriticalSection( &loader_section );
1887
1888 /* if we're stopping the whole process (and forcing the removal of all
1889 * DLLs) the library will be freed anyway
1890 */
1891 if (!process_detaching)
1892 {
1893 WINE_MODREF *wm;
1894
1895 free_lib_count++;
1896 if ((wm = get_modref( hModule )) != NULL)
1897 {
1898 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1899
1900 /* Recursively decrement reference counts */
1901 MODULE_DecRefCount( wm );
1902
1903 /* Call process detach notifications */
1904 if ( free_lib_count <= 1 )
1905 {
1906 process_detach( FALSE, NULL );
1907 MODULE_FlushModrefs();
1908 }
1909
1910 TRACE("END\n");
1911 }
1912 else
1913 retv = STATUS_DLL_NOT_FOUND;
1914
1915 free_lib_count--;
1916 }
1917
1918 RtlLeaveCriticalSection( &loader_section );
1919
1920 return retv;
1921 }
1922
1923 /***********************************************************************
1924 * RtlImageNtHeader (NTDLL.@)
1925 */
1926 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
1927 {
1928 IMAGE_NT_HEADERS *ret;
1929
1930 __TRY
1931 {
1932 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
1933
1934 ret = NULL;
1935 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
1936 {
1937 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
1938 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
1939 }
1940 }
1941 __EXCEPT(page_fault)
1942 {
1943 return NULL;
1944 }
1945 __ENDTRY
1946 return ret;
1947 }
1948
1949
1950 /******************************************************************
1951 * LdrInitializeThunk (NTDLL.@)
1952 *
1953 * FIXME: the arguments are not correct, main_file is a Wine invention.
1954 */
1955 void WINAPI LdrInitializeThunk( HANDLE main_file, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
1956 {
1957 NTSTATUS status;
1958 WINE_MODREF *wm;
1959 LPCWSTR load_path;
1960 PEB *peb = NtCurrentTeb()->Peb;
1961 UNICODE_STRING *main_exe_name = &peb->ProcessParameters->ImagePathName;
1962 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1963
1964 version_init( main_exe_name->Buffer );
1965
1966 /* allocate the modref for the main exe */
1967 if (!(wm = alloc_module( peb->ImageBaseAddress, main_exe_name->Buffer )))
1968 {
1969 status = STATUS_NO_MEMORY;
1970 goto error;
1971 }
1972 wm->ldr.LoadCount = -1; /* can't unload main exe */
1973
1974 /* the main exe needs to be the first in the load order list */
1975 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
1976 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
1977
1978 /* Install signal handlers; this cannot be done before, since we cannot
1979 * send exceptions to the debugger before the create process event that
1980 * is sent by REQ_INIT_PROCESS_DONE.
1981 * We do need the handlers in place by the time the request is over, so
1982 * we set them up here. If we segfault between here and the server call
1983 * something is very wrong... */
1984 if (!SIGNAL_Init()) exit(1);
1985
1986 /* Signal the parent process to continue */
1987 SERVER_START_REQ( init_process_done )
1988 {
1989 req->module = peb->ImageBaseAddress;
1990 req->module_size = wm->ldr.SizeOfImage;
1991 req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint;
1992 /* API requires a double indirection */
1993 req->name = &main_exe_name->Buffer;
1994 req->exe_file = main_file;
1995 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1996 wine_server_add_data( req, main_exe_name->Buffer, main_exe_name->Length );
1997 wine_server_call( req );
1998 }
1999 SERVER_END_REQ;
2000
2001 if (main_file) NtClose( main_file ); /* we no longer need it */
2002
2003 RtlEnterCriticalSection( &loader_section );
2004
2005 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2006 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
2007 if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
2008 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
2009 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS)
2010 {
2011 if (last_failed_modref)
2012 ERR( "%s failed to initialize, aborting\n", debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
2013 goto error;
2014 }
2015 attach_implicitly_loaded_dlls( (LPVOID)1 );
2016
2017 RtlLeaveCriticalSection( &loader_section );
2018
2019 if (nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE) VIRTUAL_UseLargeAddressSpace();
2020 return;
2021
2022 error:
2023 ERR( "Main exe initialization for %s failed, status %lx\n", debugstr_w(main_exe_name->Buffer), status );
2024 exit(1);
2025 }
2026
2027
2028 /***********************************************************************
2029 * RtlImageDirectoryEntryToData (NTDLL.@)
2030 */
2031 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
2032 {
2033 const IMAGE_NT_HEADERS *nt;
2034 DWORD addr;
2035
2036 if ((ULONG_PTR)module & 1) /* mapped as data file */
2037 {
2038 module = (HMODULE)((ULONG_PTR)module & ~1);
2039 image = FALSE;
2040 }
2041 if (!(nt = RtlImageNtHeader( module ))) return NULL;
2042 if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
2043 if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
2044 *size = nt->OptionalHeader.DataDirectory[dir].Size;
2045 if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
2046
2047 /* not mapped as image, need to find the section containing the virtual address */
2048 return RtlImageRvaToVa( nt, module, addr, NULL );
2049 }
2050
2051
2052 /***********************************************************************
2053 * RtlImageRvaToSection (NTDLL.@)
2054 */
2055 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
2056 HMODULE module, DWORD rva )
2057 {
2058 int i;
2059 const IMAGE_SECTION_HEADER *sec;
2060
2061 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
2062 nt->FileHeader.SizeOfOptionalHeader);
2063 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
2064 {
2065 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2066 return (PIMAGE_SECTION_HEADER)sec;
2067 }
2068 return NULL;
2069 }
2070
2071
2072 /***********************************************************************
2073 * RtlImageRvaToVa (NTDLL.@)
2074 */
2075 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
2076 DWORD rva, IMAGE_SECTION_HEADER **section )
2077 {
2078 IMAGE_SECTION_HEADER *sec;
2079
2080 if (section && *section) /* try this section first */
2081 {
2082 sec = *section;
2083 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2084 goto found;
2085 }
2086 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
2087 found:
2088 if (section) *section = sec;
2089 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
2090 }
2091
2092
2093 /***********************************************************************
2094 * NtLoadDriver (NTDLL.@)
2095 * ZwLoadDriver (NTDLL.@)
2096 */
2097 NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
2098 {
2099 FIXME("(%p), stub!\n",DriverServiceName);
2100 return STATUS_NOT_IMPLEMENTED;
2101 }
2102
2103
2104 /***********************************************************************
2105 * NtUnloadDriver (NTDLL.@)
2106 * ZwUnloadDriver (NTDLL.@)
2107 */
2108 NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName )
2109 {
2110 FIXME("(%p), stub!\n",DriverServiceName);
2111 return STATUS_NOT_IMPLEMENTED;
2112 }
2113
2114
2115 /******************************************************************
2116 * DllMain (NTDLL.@)
2117 */
2118 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
2119 {
2120 if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
2121 return TRUE;
2122 }
2123
2124
2125 /******************************************************************
2126 * __wine_init_windows_dir (NTDLL.@)
2127 *
2128 * Windows and system dir initialization once kernel32 has been loaded.
2129 */
2130 void __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
2131 {
2132 PLIST_ENTRY mark, entry;
2133 LPWSTR buffer, p;
2134
2135 RtlCreateUnicodeString( &system_dir, sysdir );
2136
2137 /* prepend the system dir to the name of the already created modules */
2138 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2139 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2140 {
2141 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
2142
2143 assert( mod->Flags & LDR_WINE_INTERNAL );
2144
2145 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
2146 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
2147 if (!buffer) continue;
2148 strcpyW( buffer, system_dir.Buffer );
2149 p = buffer + strlenW( buffer );
2150 if (p > buffer && p[-1] != '\\') *p++ = '\\';
2151 strcpyW( p, mod->FullDllName.Buffer );
2152 RtlInitUnicodeString( &mod->FullDllName, buffer );
2153 RtlInitUnicodeString( &mod->BaseDllName, p );
2154 }
2155 }
2156
2157
2158 /***********************************************************************
2159 * __wine_process_init
2160 */
2161 void __wine_process_init( int argc, char *argv[] )
2162 {
2163 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
2164
2165 WINE_MODREF *wm;
2166 NTSTATUS status;
2167 ANSI_STRING func_name;
2168 void (* DECLSPEC_NORETURN init_func)();
2169 extern mode_t FILE_umask;
2170
2171 thread_init();
2172
2173 /* retrieve current umask */
2174 FILE_umask = umask(0777);
2175 umask( FILE_umask );
2176
2177 /* setup the load callback and create ntdll modref */
2178 wine_dll_set_callback( load_builtin_callback );
2179
2180 if ((status = load_builtin_dll( NULL, kernel32W, 0, &wm )) != STATUS_SUCCESS)
2181 {
2182 MESSAGE( "wine: could not load kernel32.dll, status %lx\n", status );
2183 exit(1);
2184 }
2185 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
2186 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
2187 0, (void **)&init_func )) != STATUS_SUCCESS)
2188 {
2189 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %lx\n", status );
2190 exit(1);
2191 }
2192 init_func();
2193 }
Quick hack tree for wine patches julliard doesn't want to commit