?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Dbghelp describes the types of function arguments with a specific
[wine/wine64.git] / dlls / ntdll / loader.c
blobee951dd848ca77a36f8f19186e2092ed1a665d01
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 "pushl 20(%ebp)\n\t"
148 "pushl 16(%ebp)\n\t"
149 "pushl 12(%ebp)\n\t"
150 "movl 8(%ebp),%eax\n\t"
151 "call *%eax\n\t"
152 "leal -4(%ebp),%esp\n\t"
153 "popl %ebx\n\t"
154 "popl %ebp\n\t"
155 "ret" );
156 #else /* __i386__ */
157 static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module,
158 UINT reason, void *reserved )
159 {
160 return proc( module, reason, reserved );
161 }
162 #endif /* __i386__ */
163
164
165 #ifdef __i386__
166 /*************************************************************************
167 * stub_entry_point
168 *
169 * Entry point for stub functions.
170 */
171 static void stub_entry_point( const char *dll, const char *name, ... )
172 {
173 EXCEPTION_RECORD rec;
174
175 rec.ExceptionCode = EXCEPTION_WINE_STUB;
176 rec.ExceptionFlags = EH_NONCONTINUABLE;
177 rec.ExceptionRecord = NULL;
178 #ifdef __GNUC__
179 rec.ExceptionAddress = __builtin_return_address(0);
180 #else
181 rec.ExceptionAddress = *((void **)&dll - 1);
182 #endif
183 rec.NumberParameters = 2;
184 rec.ExceptionInformation[0] = (ULONG_PTR)dll;
185 rec.ExceptionInformation[1] = (ULONG_PTR)name;
186 for (;;) RtlRaiseException( &rec );
187 }
188
189
190 #include "pshpack1.h"
191 struct stub
192 {
193 BYTE popl_eax; /* popl %eax */
194 BYTE pushl1; /* pushl $name */
195 const char *name;
196 BYTE pushl2; /* pushl $dll */
197 const char *dll;
198 BYTE pushl_eax; /* pushl %eax */
199 BYTE jmp; /* jmp stub_entry_point */
200 DWORD entry;
201 };
202 #include "poppack.h"
203
204 /*************************************************************************
205 * allocate_stub
206 *
207 * Allocate a stub entry point.
208 */
209 static ULONG_PTR allocate_stub( const char *dll, const char *name )
210 {
211 #define MAX_SIZE 65536
212 static struct stub *stubs;
213 static unsigned int nb_stubs;
214 struct stub *stub;
215
216 if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return 0xdeadbeef;
217
218 if (!stubs)
219 {
220 ULONG size = MAX_SIZE;
221 if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&stubs, 0, &size,
222 MEM_COMMIT, PAGE_EXECUTE_WRITECOPY ) != STATUS_SUCCESS)
223 return 0xdeadbeef;
224 }
225 stub = &stubs[nb_stubs++];
226 stub->popl_eax = 0x58; /* popl %eax */
227 stub->pushl1 = 0x68; /* pushl $name */
228 stub->name = name;
229 stub->pushl2 = 0x68; /* pushl $dll */
230 stub->dll = dll;
231 stub->pushl_eax = 0x50; /* pushl %eax */
232 stub->jmp = 0xe9; /* jmp stub_entry_point */
233 stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
234 return (ULONG_PTR)stub;
235 }
236
237 #else /* __i386__ */
238 static inline ULONG_PTR allocate_stub( const char *dll, const char *name ) { return 0xdeadbeef; }
239 #endif /* __i386__ */
240
241
242 /*************************************************************************
243 * get_modref
244 *
245 * Looks for the referenced HMODULE in the current process
246 * The loader_section must be locked while calling this function.
247 */
248 static WINE_MODREF *get_modref( HMODULE hmod )
249 {
250 PLIST_ENTRY mark, entry;
251 PLDR_MODULE mod;
252
253 if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
254
255 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
256 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
257 {
258 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
259 if (mod->BaseAddress == hmod)
260 return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
261 if (mod->BaseAddress > (void*)hmod) break;
262 }
263 return NULL;
264 }
265
266
267 /**********************************************************************
268 * find_basename_module
269 *
270 * Find a module from its base name.
271 * The loader_section must be locked while calling this function
272 */
273 static WINE_MODREF *find_basename_module( LPCWSTR name )
274 {
275 PLIST_ENTRY mark, entry;
276
277 if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
278 return cached_modref;
279
280 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
281 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
282 {
283 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
284 if (!strcmpiW( name, mod->BaseDllName.Buffer ))
285 {
286 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
287 return cached_modref;
288 }
289 }
290 return NULL;
291 }
292
293
294 /**********************************************************************
295 * find_fullname_module
296 *
297 * Find a module from its full path name.
298 * The loader_section must be locked while calling this function
299 */
300 static WINE_MODREF *find_fullname_module( LPCWSTR name )
301 {
302 PLIST_ENTRY mark, entry;
303
304 if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
305 return cached_modref;
306
307 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
308 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
309 {
310 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
311 if (!strcmpiW( name, mod->FullDllName.Buffer ))
312 {
313 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
314 return cached_modref;
315 }
316 }
317 return NULL;
318 }
319
320
321 /*************************************************************************
322 * find_forwarded_export
323 *
324 * Find the final function pointer for a forwarded function.
325 * The loader_section must be locked while calling this function.
326 */
327 static FARPROC find_forwarded_export( HMODULE module, const char *forward )
328 {
329 const IMAGE_EXPORT_DIRECTORY *exports;
330 DWORD exp_size;
331 WINE_MODREF *wm;
332 WCHAR mod_name[32];
333 const char *end = strchr(forward, '.');
334 FARPROC proc = NULL;
335
336 if (!end) return NULL;
337 if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
338 ascii_to_unicode( mod_name, forward, end - forward );
339 memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
340
341 if (!(wm = find_basename_module( mod_name )))
342 {
343 ERR("module not found for forward '%s' used by %s\n",
344 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
345 return NULL;
346 }
347 if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
348 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
349 proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1 );
350
351 if (!proc)
352 {
353 ERR("function not found for forward '%s' used by %s."
354 " If you are using builtin %s, try using the native one instead.\n",
355 forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
356 debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
357 }
358 return proc;
359 }
360
361
362 /*************************************************************************
363 * find_ordinal_export
364 *
365 * Find an exported function by ordinal.
366 * The exports base must have been subtracted from the ordinal already.
367 * The loader_section must be locked while calling this function.
368 */
369 static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
370 DWORD exp_size, int ordinal )
371 {
372 FARPROC proc;
373 const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
374
375 if (ordinal >= exports->NumberOfFunctions)
376 {
377 TRACE(" ordinal %ld out of range!\n", ordinal + exports->Base );
378 return NULL;
379 }
380 if (!functions[ordinal]) return NULL;
381
382 proc = get_rva( module, functions[ordinal] );
383
384 /* if the address falls into the export dir, it's a forward */
385 if (((const char *)proc >= (const char *)exports) &&
386 ((const char *)proc < (const char *)exports + exp_size))
387 return find_forwarded_export( module, (const char *)proc );
388
389 if (TRACE_ON(snoop))
390 {
391 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
392 proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
393 }
394 if (TRACE_ON(relay))
395 {
396 const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
397 proc = RELAY_GetProcAddress( module, exports, exp_size, proc, user );
398 }
399 return proc;
400 }
401
402
403 /*************************************************************************
404 * find_named_export
405 *
406 * Find an exported function by name.
407 * The loader_section must be locked while calling this function.
408 */
409 static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
410 DWORD exp_size, const char *name, int hint )
411 {
412 const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
413 const DWORD *names = get_rva( module, exports->AddressOfNames );
414 int min = 0, max = exports->NumberOfNames - 1;
415
416 /* first check the hint */
417 if (hint >= 0 && hint <= max)
418 {
419 char *ename = get_rva( module, names[hint] );
420 if (!strcmp( ename, name ))
421 return find_ordinal_export( module, exports, exp_size, ordinals[hint] );
422 }
423
424 /* then do a binary search */
425 while (min <= max)
426 {
427 int res, pos = (min + max) / 2;
428 char *ename = get_rva( module, names[pos] );
429 if (!(res = strcmp( ename, name )))
430 return find_ordinal_export( module, exports, exp_size, ordinals[pos] );
431 if (res > 0) max = pos - 1;
432 else min = pos + 1;
433 }
434 return NULL;
435
436 }
437
438
439 /*************************************************************************
440 * import_dll
441 *
442 * Import the dll specified by the given import descriptor.
443 * The loader_section must be locked while calling this function.
444 */
445 static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
446 {
447 NTSTATUS status;
448 WINE_MODREF *wmImp;
449 HMODULE imp_mod;
450 const IMAGE_EXPORT_DIRECTORY *exports;
451 DWORD exp_size;
452 const IMAGE_THUNK_DATA *import_list;
453 IMAGE_THUNK_DATA *thunk_list;
454 WCHAR buffer[32];
455 const char *name = get_rva( module, descr->Name );
456 DWORD len = strlen(name) + 1;
457 PVOID protect_base;
458 SIZE_T protect_size = 0;
459 DWORD protect_old;
460
461 thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
462 if (descr->u.OriginalFirstThunk)
463 import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
464 else
465 import_list = thunk_list;
466
467 if (len * sizeof(WCHAR) <= sizeof(buffer))
468 {
469 ascii_to_unicode( buffer, name, len );
470 status = load_dll( load_path, buffer, 0, &wmImp );
471 }
472 else /* need to allocate a larger buffer */
473 {
474 WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) );
475 if (!ptr) return NULL;
476 ascii_to_unicode( ptr, name, len );
477 status = load_dll( load_path, ptr, 0, &wmImp );
478 RtlFreeHeap( GetProcessHeap(), 0, ptr );
479 }
480
481 if (status)
482 {
483 if (status == STATUS_DLL_NOT_FOUND)
484 ERR("Library %s (which is needed by %s) not found\n",
485 name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
486 else
487 ERR("Loading library %s (which is needed by %s) failed (error %lx).\n",
488 name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
489 return NULL;
490 }
491
492 /* unprotect the import address table since it can be located in
493 * readonly section */
494 while (import_list[protect_size].u1.Ordinal) protect_size++;
495 protect_base = thunk_list;
496 protect_size *= sizeof(*thunk_list);
497 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base,
498 &protect_size, PAGE_WRITECOPY, &protect_old );
499
500 imp_mod = wmImp->ldr.BaseAddress;
501 exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
502
503 if (!exports)
504 {
505 /* set all imported function to deadbeef */
506 while (import_list->u1.Ordinal)
507 {
508 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
509 {
510 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
511 WARN("No implementation for %s.%d", name, ordinal );
512 thunk_list->u1.Function = allocate_stub( name, (const char *)ordinal );
513 }
514 else
515 {
516 IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
517 WARN("No implementation for %s.%s", name, pe_name->Name );
518 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
519 }
520 WARN(" imported from %s, allocating stub %p\n",
521 debugstr_w(current_modref->ldr.FullDllName.Buffer),
522 (void *)thunk_list->u1.Function );
523 import_list++;
524 thunk_list++;
525 }
526 goto done;
527 }
528
529 while (import_list->u1.Ordinal)
530 {
531 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
532 {
533 int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
534
535 thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size,
536 ordinal - exports->Base );
537 if (!thunk_list->u1.Function)
538 {
539 thunk_list->u1.Function = allocate_stub( name, (const char *)ordinal );
540 WARN("No implementation for %s.%d imported from %s, setting to %p\n",
541 name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
542 (void *)thunk_list->u1.Function );
543 }
544 TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function );
545 }
546 else /* import by name */
547 {
548 IMAGE_IMPORT_BY_NAME *pe_name;
549 pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
550 thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size,
551 (const char*)pe_name->Name, pe_name->Hint );
552 if (!thunk_list->u1.Function)
553 {
554 thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
555 WARN("No implementation for %s.%s imported from %s, setting to %p\n",
556 name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
557 (void *)thunk_list->u1.Function );
558 }
559 TRACE_(imports)("--- %s %s.%d = %p\n",
560 pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function);
561 }
562 import_list++;
563 thunk_list++;
564 }
565
566 done:
567 /* restore old protection of the import address table */
568 NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
569 return wmImp;
570 }
571
572
573 /****************************************************************
574 * fixup_imports
575 *
576 * Fixup all imports of a given module.
577 * The loader_section must be locked while calling this function.
578 */
579 static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
580 {
581 int i, nb_imports;
582 const IMAGE_IMPORT_DESCRIPTOR *imports;
583 WINE_MODREF *prev;
584 DWORD size;
585 NTSTATUS status;
586
587 if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
588 IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
589 return STATUS_SUCCESS;
590
591 nb_imports = 0;
592 while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++;
593
594 if (!nb_imports) return STATUS_SUCCESS; /* no imports */
595
596 /* Allocate module dependency list */
597 wm->nDeps = nb_imports;
598 wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
599
600 /* load the imported modules. They are automatically
601 * added to the modref list of the process.
602 */
603 prev = current_modref;
604 current_modref = wm;
605 status = STATUS_SUCCESS;
606 for (i = 0; i < nb_imports; i++)
607 {
608 if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path )))
609 status = STATUS_DLL_NOT_FOUND;
610 }
611 current_modref = prev;
612 return status;
613 }
614
615
616 /*************************************************************************
617 * alloc_module
618 *
619 * Allocate a WINE_MODREF structure and add it to the process list
620 * The loader_section must be locked while calling this function.
621 */
622 static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
623 {
624 WINE_MODREF *wm;
625 const WCHAR *p;
626 const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
627 PLIST_ENTRY entry, mark;
628
629 if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
630
631 wm->nDeps = 0;
632 wm->deps = NULL;
633
634 wm->ldr.BaseAddress = hModule;
635 wm->ldr.EntryPoint = NULL;
636 wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
637 wm->ldr.Flags = 0;
638 wm->ldr.LoadCount = 0;
639 wm->ldr.TlsIndex = -1;
640 wm->ldr.SectionHandle = NULL;
641 wm->ldr.CheckSum = 0;
642 wm->ldr.TimeDateStamp = 0;
643
644 RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
645 if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
646 else p = wm->ldr.FullDllName.Buffer;
647 RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
648
649 if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
650 {
651 wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
652 if (nt->OptionalHeader.AddressOfEntryPoint)
653 wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
654 }
655
656 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
657 &wm->ldr.InLoadOrderModuleList);
658
659 /* insert module in MemoryList, sorted in increasing base addresses */
660 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
661 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
662 {
663 if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
664 break;
665 }
666 entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
667 wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
668 wm->ldr.InMemoryOrderModuleList.Flink = entry;
669 entry->Blink = &wm->ldr.InMemoryOrderModuleList;
670
671 /* wait until init is called for inserting into this list */
672 wm->ldr.InInitializationOrderModuleList.Flink = NULL;
673 wm->ldr.InInitializationOrderModuleList.Blink = NULL;
674 return wm;
675 }
676
677
678 /*************************************************************************
679 * alloc_process_tls
680 *
681 * Allocate the process-wide structure for module TLS storage.
682 */
683 static NTSTATUS alloc_process_tls(void)
684 {
685 PLIST_ENTRY mark, entry;
686 PLDR_MODULE mod;
687 const IMAGE_TLS_DIRECTORY *dir;
688 ULONG size, i;
689
690 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
691 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
692 {
693 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
694 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
695 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
696 continue;
697 size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
698 if (!size) continue;
699 tls_total_size += size;
700 tls_module_count++;
701 }
702 if (!tls_module_count) return STATUS_SUCCESS;
703
704 TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
705
706 tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) );
707 if (!tls_dirs) return STATUS_NO_MEMORY;
708
709 for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
710 {
711 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
712 if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
713 IMAGE_DIRECTORY_ENTRY_TLS, &size )))
714 continue;
715 tls_dirs[i] = dir;
716 *(DWORD *)dir->AddressOfIndex = i;
717 mod->TlsIndex = i;
718 mod->LoadCount = -1; /* can't unload it */
719 i++;
720 }
721 return STATUS_SUCCESS;
722 }
723
724
725 /*************************************************************************
726 * alloc_thread_tls
727 *
728 * Allocate the per-thread structure for module TLS storage.
729 */
730 static NTSTATUS alloc_thread_tls(void)
731 {
732 void **pointers;
733 char *data;
734 UINT i;
735
736 if (!tls_module_count) return STATUS_SUCCESS;
737
738 if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0,
739 tls_module_count * sizeof(*pointers) )))
740 return STATUS_NO_MEMORY;
741
742 if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, tls_total_size )))
743 {
744 RtlFreeHeap( GetProcessHeap(), 0, pointers );
745 return STATUS_NO_MEMORY;
746 }
747
748 for (i = 0; i < tls_module_count; i++)
749 {
750 const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
751 ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
752
753 TRACE( "thread %04lx idx %d: %ld/%ld bytes from %p to %p\n",
754 GetCurrentThreadId(), i, size, dir->SizeOfZeroFill,
755 (void *)dir->StartAddressOfRawData, data );
756
757 pointers[i] = data;
758 memcpy( data, (void *)dir->StartAddressOfRawData, size );
759 data += size;
760 memset( data, 0, dir->SizeOfZeroFill );
761 data += dir->SizeOfZeroFill;
762 }
763 NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
764 return STATUS_SUCCESS;
765 }
766
767
768 /*************************************************************************
769 * call_tls_callbacks
770 */
771 static void call_tls_callbacks( HMODULE module, UINT reason )
772 {
773 const IMAGE_TLS_DIRECTORY *dir;
774 const PIMAGE_TLS_CALLBACK *callback;
775 ULONG dirsize;
776
777 dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
778 if (!dir || !dir->AddressOfCallBacks) return;
779
780 for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
781 {
782 if (TRACE_ON(relay))
783 DPRINTF("%04lx:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
784 GetCurrentThreadId(), *callback, module, reason_names[reason] );
785 (*callback)( module, reason, NULL );
786 if (TRACE_ON(relay))
787 DPRINTF("%04lx:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
788 GetCurrentThreadId(), *callback, module, reason_names[reason] );
789 }
790 }
791
792
793 /*************************************************************************
794 * MODULE_InitDLL
795 */
796 static BOOL MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
797 {
798 WCHAR mod_name[32];
799 BOOL retv = TRUE;
800 DLLENTRYPROC entry = wm->ldr.EntryPoint;
801 void *module = wm->ldr.BaseAddress;
802
803 /* Skip calls for modules loaded with special load flags */
804
805 if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return TRUE;
806 if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
807 if (!entry) return TRUE;
808
809 if (TRACE_ON(relay))
810 {
811 size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
812 memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
813 mod_name[len / sizeof(WCHAR)] = 0;
814 DPRINTF("%04lx:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
815 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
816 reason_names[reason], lpReserved );
817 }
818 else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
819 reason_names[reason], lpReserved );
820
821 retv = call_dll_entry_point( entry, module, reason, lpReserved );
822
823 /* The state of the module list may have changed due to the call
824 to the dll. We cannot assume that this module has not been
825 deleted. */
826 if (TRACE_ON(relay))
827 DPRINTF("%04lx:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
828 GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
829 reason_names[reason], lpReserved, retv );
830 else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
831
832 return retv;
833 }
834
835
836 /*************************************************************************
837 * process_attach
838 *
839 * Send the process attach notification to all DLLs the given module
840 * depends on (recursively). This is somewhat complicated due to the fact that
841 *
842 * - we have to respect the module dependencies, i.e. modules implicitly
843 * referenced by another module have to be initialized before the module
844 * itself can be initialized
845 *
846 * - the initialization routine of a DLL can itself call LoadLibrary,
847 * thereby introducing a whole new set of dependencies (even involving
848 * the 'old' modules) at any time during the whole process
849 *
850 * (Note that this routine can be recursively entered not only directly
851 * from itself, but also via LoadLibrary from one of the called initialization
852 * routines.)
853 *
854 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
855 * the process *detach* notifications to be sent in the correct order.
856 * This must not only take into account module dependencies, but also
857 * 'hidden' dependencies created by modules calling LoadLibrary in their
858 * attach notification routine.
859 *
860 * The strategy is rather simple: we move a WINE_MODREF to the head of the
861 * list after the attach notification has returned. This implies that the
862 * detach notifications are called in the reverse of the sequence the attach
863 * notifications *returned*.
864 *
865 * The loader_section must be locked while calling this function.
866 */
867 static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
868 {
869 NTSTATUS status = STATUS_SUCCESS;
870 int i;
871
872 if (process_detaching) return status;
873
874 /* prevent infinite recursion in case of cyclical dependencies */
875 if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
876 || ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
877 return status;
878
879 TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
880
881 /* Tag current MODREF to prevent recursive loop */
882 wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
883
884 /* Recursively attach all DLLs this one depends on */
885 for ( i = 0; i < wm->nDeps; i++ )
886 {
887 if (!wm->deps[i]) continue;
888 if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
889 }
890
891 /* Call DLL entry point */
892 if (status == STATUS_SUCCESS)
893 {
894 WINE_MODREF *prev = current_modref;
895 current_modref = wm;
896 if (MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved ))
897 {
898 wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
899 }
900 else
901 {
902 /* point to the name so LdrInitializeThunk can print it */
903 last_failed_modref = wm;
904 WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
905 status = STATUS_DLL_INIT_FAILED;
906 }
907 current_modref = prev;
908 }
909
910 if (!wm->ldr.InInitializationOrderModuleList.Flink)
911 InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
912 &wm->ldr.InInitializationOrderModuleList);
913
914 /* Remove recursion flag */
915 wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
916
917 TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
918 return status;
919 }
920
921
922 /**********************************************************************
923 * attach_implicitly_loaded_dlls
924 *
925 * Attach to the (builtin) dlls that have been implicitly loaded because
926 * of a dependency at the Unix level, but not imported at the Win32 level.
927 */
928 static void attach_implicitly_loaded_dlls( LPVOID reserved )
929 {
930 for (;;)
931 {
932 PLIST_ENTRY mark, entry;
933
934 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
935 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
936 {
937 LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
938
939 if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue;
940 TRACE( "found implicitly loaded %s, attaching to it\n",
941 debugstr_w(mod->BaseDllName.Buffer));
942 process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved );
943 break; /* restart the search from the start */
944 }
945 if (entry == mark) break; /* nothing found */
946 }
947 }
948
949
950 /*************************************************************************
951 * process_detach
952 *
953 * Send DLL process detach notifications. See the comment about calling
954 * sequence at process_attach. Unless the bForceDetach flag
955 * is set, only DLLs with zero refcount are notified.
956 */
957 static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
958 {
959 PLIST_ENTRY mark, entry;
960 PLDR_MODULE mod;
961
962 RtlEnterCriticalSection( &loader_section );
963 if (bForceDetach) process_detaching = 1;
964 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
965 do
966 {
967 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
968 {
969 mod = CONTAINING_RECORD(entry, LDR_MODULE,
970 InInitializationOrderModuleList);
971 /* Check whether to detach this DLL */
972 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
973 continue;
974 if ( mod->LoadCount && !bForceDetach )
975 continue;
976
977 /* Call detach notification */
978 mod->Flags &= ~LDR_PROCESS_ATTACHED;
979 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
980 DLL_PROCESS_DETACH, lpReserved );
981
982 /* Restart at head of WINE_MODREF list, as entries might have
983 been added and/or removed while performing the call ... */
984 break;
985 }
986 } while (entry != mark);
987
988 RtlLeaveCriticalSection( &loader_section );
989 }
990
991 /*************************************************************************
992 * MODULE_DllThreadAttach
993 *
994 * Send DLL thread attach notifications. These are sent in the
995 * reverse sequence of process detach notification.
996 *
997 */
998 NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
999 {
1000 PLIST_ENTRY mark, entry;
1001 PLDR_MODULE mod;
1002 NTSTATUS status;
1003
1004 /* don't do any attach calls if process is exiting */
1005 if (process_detaching) return STATUS_SUCCESS;
1006 /* FIXME: there is still a race here */
1007
1008 RtlEnterCriticalSection( &loader_section );
1009
1010 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
1011
1012 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1013 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1014 {
1015 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1016 InInitializationOrderModuleList);
1017 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1018 continue;
1019 if ( mod->Flags & LDR_NO_DLL_CALLS )
1020 continue;
1021
1022 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1023 DLL_THREAD_ATTACH, lpReserved );
1024 }
1025
1026 done:
1027 RtlLeaveCriticalSection( &loader_section );
1028 return status;
1029 }
1030
1031 /******************************************************************
1032 * LdrDisableThreadCalloutsForDll (NTDLL.@)
1033 *
1034 */
1035 NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
1036 {
1037 WINE_MODREF *wm;
1038 NTSTATUS ret = STATUS_SUCCESS;
1039
1040 RtlEnterCriticalSection( &loader_section );
1041
1042 wm = get_modref( hModule );
1043 if (!wm || wm->ldr.TlsIndex != -1)
1044 ret = STATUS_DLL_NOT_FOUND;
1045 else
1046 wm->ldr.Flags |= LDR_NO_DLL_CALLS;
1047
1048 RtlLeaveCriticalSection( &loader_section );
1049
1050 return ret;
1051 }
1052
1053 /******************************************************************
1054 * LdrFindEntryForAddress (NTDLL.@)
1055 *
1056 * The loader_section must be locked while calling this function
1057 */
1058 NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
1059 {
1060 PLIST_ENTRY mark, entry;
1061 PLDR_MODULE mod;
1062
1063 mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
1064 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1065 {
1066 mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
1067 if ((const void *)mod->BaseAddress <= addr &&
1068 (const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
1069 {
1070 *pmod = mod;
1071 return STATUS_SUCCESS;
1072 }
1073 if ((const void *)mod->BaseAddress > addr) break;
1074 }
1075 return STATUS_NO_MORE_ENTRIES;
1076 }
1077
1078 /******************************************************************
1079 * LdrLockLoaderLock (NTDLL.@)
1080 *
1081 * Note: flags are not implemented.
1082 * Flag 0x01 is used to raise exceptions on errors.
1083 * Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
1084 */
1085 NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
1086 {
1087 if (flags) FIXME( "flags %lx not supported\n", flags );
1088
1089 if (result) *result = 1;
1090 if (!magic) return STATUS_INVALID_PARAMETER_3;
1091 RtlEnterCriticalSection( &loader_section );
1092 *magic = GetCurrentThreadId();
1093 return STATUS_SUCCESS;
1094 }
1095
1096
1097 /******************************************************************
1098 * LdrUnlockLoaderUnlock (NTDLL.@)
1099 */
1100 NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
1101 {
1102 if (magic)
1103 {
1104 if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
1105 RtlLeaveCriticalSection( &loader_section );
1106 }
1107 return STATUS_SUCCESS;
1108 }
1109
1110
1111 /******************************************************************
1112 * LdrGetDllHandle (NTDLL.@)
1113 */
1114 NTSTATUS WINAPI LdrGetDllHandle(ULONG x, ULONG y, const UNICODE_STRING *name, HMODULE *base)
1115 {
1116 NTSTATUS status = STATUS_DLL_NOT_FOUND;
1117 WCHAR dllname[MAX_PATH+4], *p;
1118 UNICODE_STRING str;
1119 PLIST_ENTRY mark, entry;
1120 PLDR_MODULE mod;
1121
1122 if (x != 0 || y != 0)
1123 FIXME("Unknown behavior, please report\n");
1124
1125 /* Append .DLL to name if no extension present */
1126 if (!(p = strrchrW( name->Buffer, '.')) || strchrW( p, '/' ) || strchrW( p, '\\'))
1127 {
1128 if (name->Length >= MAX_PATH) return STATUS_NAME_TOO_LONG;
1129 strcpyW( dllname, name->Buffer );
1130 strcatW( dllname, dllW );
1131 RtlInitUnicodeString( &str, dllname );
1132 name = &str;
1133 }
1134
1135 RtlEnterCriticalSection( &loader_section );
1136
1137 if (cached_modref)
1138 {
1139 if (RtlEqualUnicodeString( name, &cached_modref->ldr.FullDllName, TRUE ) ||
1140 RtlEqualUnicodeString( name, &cached_modref->ldr.BaseDllName, TRUE ))
1141 {
1142 *base = cached_modref->ldr.BaseAddress;
1143 status = STATUS_SUCCESS;
1144 goto done;
1145 }
1146 }
1147
1148 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1149 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1150 {
1151 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1152
1153 if (RtlEqualUnicodeString( name, &mod->FullDllName, TRUE ) ||
1154 RtlEqualUnicodeString( name, &mod->BaseDllName, TRUE ))
1155 {
1156 cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1157 *base = mod->BaseAddress;
1158 status = STATUS_SUCCESS;
1159 break;
1160 }
1161 }
1162 done:
1163 RtlLeaveCriticalSection( &loader_section );
1164 TRACE("%lx %lx %s -> %p\n", x, y, debugstr_us(name), status ? NULL : *base);
1165 return status;
1166 }
1167
1168
1169 /******************************************************************
1170 * LdrGetProcedureAddress (NTDLL.@)
1171 */
1172 NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
1173 ULONG ord, PVOID *address)
1174 {
1175 IMAGE_EXPORT_DIRECTORY *exports;
1176 DWORD exp_size;
1177 NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
1178
1179 RtlEnterCriticalSection( &loader_section );
1180
1181 if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
1182 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
1183 {
1184 void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1 )
1185 : find_ordinal_export( module, exports, exp_size, ord - exports->Base );
1186 if (proc)
1187 {
1188 *address = proc;
1189 ret = STATUS_SUCCESS;
1190 }
1191 }
1192 else
1193 {
1194 /* check if the module itself is invalid to return the proper error */
1195 if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
1196 }
1197
1198 RtlLeaveCriticalSection( &loader_section );
1199 return ret;
1200 }
1201
1202
1203 /***********************************************************************
1204 * load_builtin_callback
1205 *
1206 * Load a library in memory; callback function for wine_dll_register
1207 */
1208 static void load_builtin_callback( void *module, const char *filename )
1209 {
1210 static const WCHAR emptyW[1];
1211 void *addr;
1212 IMAGE_NT_HEADERS *nt;
1213 WINE_MODREF *wm;
1214 WCHAR *fullname, *p;
1215 const WCHAR *load_path;
1216
1217 if (!module)
1218 {
1219 ERR("could not map image for %s\n", filename ? filename : "main exe" );
1220 return;
1221 }
1222 if (!(nt = RtlImageNtHeader( module )))
1223 {
1224 ERR( "bad module for %s\n", filename ? filename : "main exe" );
1225 builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
1226 return;
1227 }
1228 addr = module;
1229 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &nt->OptionalHeader.SizeOfImage,
1230 MEM_SYSTEM | MEM_IMAGE, PAGE_EXECUTE_WRITECOPY );
1231 if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
1232 {
1233 /* if we already have an executable, ignore this one */
1234 if (!NtCurrentTeb()->Peb->ImageBaseAddress)
1235 {
1236 NtCurrentTeb()->Peb->ImageBaseAddress = module;
1237 return; /* don't create the modref here, will be done later on */
1238 }
1239 }
1240
1241 /* create the MODREF */
1242
1243 if (!(fullname = RtlAllocateHeap( GetProcessHeap(), 0,
1244 system_dir.MaximumLength + (strlen(filename) + 1) * sizeof(WCHAR) )))
1245 {
1246 ERR( "can't load %s\n", filename );
1247 builtin_load_info->status = STATUS_NO_MEMORY;
1248 return;
1249 }
1250 memcpy( fullname, system_dir.Buffer, system_dir.Length );
1251 p = fullname + system_dir.Length / sizeof(WCHAR);
1252 if (p > fullname && p[-1] != '\\') *p++ = '\\';
1253 ascii_to_unicode( p, filename, strlen(filename) + 1 );
1254
1255 wm = alloc_module( module, fullname );
1256 RtlFreeHeap( GetProcessHeap(), 0, fullname );
1257 if (!wm)
1258 {
1259 ERR( "can't load %s\n", filename );
1260 builtin_load_info->status = STATUS_NO_MEMORY;
1261 return;
1262 }
1263 wm->ldr.Flags |= LDR_WINE_INTERNAL;
1264
1265 /* fixup imports */
1266
1267 load_path = builtin_load_info->load_path;
1268 if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1269 if (!load_path) load_path = emptyW;
1270 if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
1271 {
1272 /* the module has only be inserted in the load & memory order lists */
1273 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1274 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1275 /* FIXME: free the modref */
1276 builtin_load_info->status = STATUS_DLL_NOT_FOUND;
1277 return;
1278 }
1279 builtin_load_info->wm = wm;
1280 TRACE( "loaded %s %p %p\n", filename, wm, module );
1281
1282 /* send the DLL load event */
1283
1284 SERVER_START_REQ( load_dll )
1285 {
1286 req->handle = 0;
1287 req->base = module;
1288 req->size = nt->OptionalHeader.SizeOfImage;
1289 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1290 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1291 req->name = &wm->ldr.FullDllName.Buffer;
1292 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1293 wine_server_call( req );
1294 }
1295 SERVER_END_REQ;
1296
1297 /* setup relay debugging entry points */
1298 if (TRACE_ON(relay)) RELAY_SetupDLL( module );
1299 }
1300
1301
1302 /******************************************************************************
1303 * load_native_dll (internal)
1304 */
1305 static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
1306 DWORD flags, WINE_MODREF** pwm )
1307 {
1308 void *module;
1309 HANDLE mapping;
1310 OBJECT_ATTRIBUTES attr;
1311 LARGE_INTEGER size;
1312 IMAGE_NT_HEADERS *nt;
1313 SIZE_T len = 0;
1314 WINE_MODREF *wm;
1315 NTSTATUS status;
1316
1317 TRACE( "loading %s\n", debugstr_w(name) );
1318
1319 attr.Length = sizeof(attr);
1320 attr.RootDirectory = 0;
1321 attr.ObjectName = NULL;
1322 attr.Attributes = 0;
1323 attr.SecurityDescriptor = NULL;
1324 attr.SecurityQualityOfService = NULL;
1325 size.QuadPart = 0;
1326
1327 status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
1328 &attr, &size, 0, SEC_IMAGE, file );
1329 if (status != STATUS_SUCCESS) return status;
1330
1331 module = NULL;
1332 status = NtMapViewOfSection( mapping, NtCurrentProcess(),
1333 &module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
1334 NtClose( mapping );
1335 if (status != STATUS_SUCCESS) return status;
1336
1337 /* create the MODREF */
1338
1339 if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
1340
1341 /* fixup imports */
1342
1343 if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
1344 {
1345 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
1346 {
1347 /* the module has only be inserted in the load & memory order lists */
1348 RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
1349 RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
1350
1351 /* FIXME: there are several more dangling references
1352 * left. Including dlls loaded by this dll before the
1353 * failed one. Unrolling is rather difficult with the
1354 * current structure and we can leave them lying
1355 * around with no problems, so we don't care.
1356 * As these might reference our wm, we don't free it.
1357 */
1358 return status;
1359 }
1360 }
1361 else wm->ldr.Flags |= LDR_DONT_RESOLVE_REFS;
1362
1363 /* send DLL load event */
1364
1365 nt = RtlImageNtHeader( module );
1366
1367 /* don't keep the file open if the mapping is from removable media */
1368 if (!VIRTUAL_HasMapping( module )) file = 0;
1369
1370 SERVER_START_REQ( load_dll )
1371 {
1372 req->handle = file;
1373 req->base = module;
1374 req->size = nt->OptionalHeader.SizeOfImage;
1375 req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
1376 req->dbg_size = nt->FileHeader.NumberOfSymbols;
1377 req->name = &wm->ldr.FullDllName.Buffer;
1378 wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
1379 wine_server_call( req );
1380 }
1381 SERVER_END_REQ;
1382
1383 if (TRACE_ON(snoop)) SNOOP_SetupDLL( module );
1384
1385 TRACE_(loaddll)( " Loaded module %s : native\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
1386
1387 *pwm = wm;
1388 return STATUS_SUCCESS;
1389 }
1390
1391
1392 /***********************************************************************
1393 * load_builtin_dll
1394 */
1395 static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, DWORD flags, WINE_MODREF** pwm )
1396 {
1397 char error[256], dllname[MAX_PATH];
1398 int file_exists;
1399 const WCHAR *name, *p;
1400 DWORD len, i;
1401 void *handle;
1402 struct builtin_load_info info, *prev_info;
1403
1404 /* Fix the name in case we have a full path and extension */
1405 name = path;
1406 if ((p = strrchrW( name, '\\' ))) name = p + 1;
1407 if ((p = strrchrW( name, '/' ))) name = p + 1;
1408
1409 /* we don't want to depend on the current codepage here */
1410 len = strlenW( name ) + 1;
1411 if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
1412 for (i = 0; i < len; i++)
1413 {
1414 if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
1415 dllname[i] = (char)name[i];
1416 if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
1417 }
1418
1419 /* load_library will modify info.status. Note also that load_library can be
1420 * called several times, if the .so file we're loading has dependencies.
1421 * info.status will gather all the errors we may get while loading all these
1422 * libraries
1423 */
1424 info.load_path = load_path;
1425 info.status = STATUS_SUCCESS;
1426 info.wm = NULL;
1427 prev_info = builtin_load_info;
1428 builtin_load_info = &info;
1429 handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
1430 builtin_load_info = prev_info;
1431
1432 if (!handle)
1433 {
1434 if (!file_exists)
1435 {
1436 /* The file does not exist -> WARN() */
1437 WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
1438 return STATUS_DLL_NOT_FOUND;
1439 }
1440 /* ERR() for all other errors (missing functions, ...) */
1441 ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
1442 return STATUS_PROCEDURE_NOT_FOUND;
1443 }
1444 if (info.status != STATUS_SUCCESS) return info.status;
1445
1446 if (!info.wm)
1447 {
1448 /* The constructor wasn't called, this means the .so is already
1449 * loaded under a different name. We can't support multiple names
1450 * for the same module, so return an error. */
1451 return STATUS_INVALID_IMAGE_FORMAT;
1452 }
1453
1454 TRACE_(loaddll)( "Loaded module %s : builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer) );
1455
1456 info.wm->ldr.SectionHandle = handle;
1457 if (strcmpiW( info.wm->ldr.BaseDllName.Buffer, name ))
1458 {
1459 ERR( "loaded .so for %s but got %s instead - probably 16-bit dll\n",
1460 debugstr_w(name), debugstr_w(info.wm->ldr.BaseDllName.Buffer) );
1461 /* wine_dll_unload( handle );*/
1462 return STATUS_INVALID_IMAGE_FORMAT;
1463 }
1464 *pwm = info.wm;
1465 return STATUS_SUCCESS;
1466 }
1467
1468
1469 /***********************************************************************
1470 * find_dll_file
1471 *
1472 * Find the file (or already loaded module) for a given dll name.
1473 */
1474 static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
1475 WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
1476 {
1477 OBJECT_ATTRIBUTES attr;
1478 IO_STATUS_BLOCK io;
1479 UNICODE_STRING nt_name;
1480 WCHAR *file_part, *ext, *dllname;
1481 ULONG len;
1482
1483 /* first append .dll if needed */
1484
1485 dllname = NULL;
1486 if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
1487 {
1488 if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
1489 (strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
1490 return STATUS_NO_MEMORY;
1491 strcpyW( dllname, libname );
1492 strcatW( dllname, dllW );
1493 libname = dllname;
1494 }
1495
1496 nt_name.Buffer = NULL;
1497 if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
1498 {
1499 /* we need to search for it */
1500 len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
1501 if (len)
1502 {
1503 if (len >= *size) goto overflow;
1504 if ((*pwm = find_fullname_module( filename )) != NULL) goto found;
1505
1506 /* check for already loaded module in a different path */
1507 if (!contains_path( libname ))
1508 {
1509 if ((*pwm = find_basename_module( file_part )) != NULL) goto found;
1510 }
1511 if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
1512 {
1513 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1514 return STATUS_NO_MEMORY;
1515 }
1516 attr.Length = sizeof(attr);
1517 attr.RootDirectory = 0;
1518 attr.Attributes = OBJ_CASE_INSENSITIVE;
1519 attr.ObjectName = &nt_name;
1520 attr.SecurityDescriptor = NULL;
1521 attr.SecurityQualityOfService = NULL;
1522 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1523 goto found;
1524 }
1525
1526 /* not found */
1527
1528 if (!contains_path( libname ))
1529 {
1530 /* if libname doesn't contain a path at all, we simply return the name as is,
1531 * to be loaded as builtin */
1532 len = strlenW(libname) * sizeof(WCHAR);
1533 if (len >= *size) goto overflow;
1534 strcpyW( filename, libname );
1535 *pwm = find_basename_module( filename );
1536 goto found;
1537 }
1538 }
1539
1540 /* absolute path name, or relative path name but not found above */
1541
1542 if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
1543 {
1544 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1545 return STATUS_NO_MEMORY;
1546 }
1547 len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
1548 if (len >= *size) goto overflow;
1549 memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
1550 if (!(*pwm = find_fullname_module( filename )))
1551 {
1552 attr.Length = sizeof(attr);
1553 attr.RootDirectory = 0;
1554 attr.Attributes = OBJ_CASE_INSENSITIVE;
1555 attr.ObjectName = &nt_name;
1556 attr.SecurityDescriptor = NULL;
1557 attr.SecurityQualityOfService = NULL;
1558 if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
1559 }
1560 found:
1561 RtlFreeUnicodeString( &nt_name );
1562 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1563 return STATUS_SUCCESS;
1564
1565 overflow:
1566 RtlFreeUnicodeString( &nt_name );
1567 RtlFreeHeap( GetProcessHeap(), 0, dllname );
1568 *size = len + sizeof(WCHAR);
1569 return STATUS_BUFFER_TOO_SMALL;
1570 }
1571
1572
1573 /***********************************************************************
1574 * load_dll (internal)
1575 *
1576 * Load a PE style module according to the load order.
1577 * The loader_section must be locked while calling this function.
1578 */
1579 static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
1580 {
1581 int i;
1582 enum loadorder_type loadorder[LOADORDER_NTYPES];
1583 WCHAR buffer[32];
1584 WCHAR *filename;
1585 ULONG size;
1586 const char *filetype = "";
1587 WINE_MODREF *main_exe;
1588 HANDLE handle = 0;
1589 NTSTATUS nts;
1590
1591 TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
1592
1593 filename = buffer;
1594 size = sizeof(buffer);
1595 for (;;)
1596 {
1597 nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
1598 if (nts == STATUS_SUCCESS) break;
1599 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1600 if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
1601 /* grow the buffer and retry */
1602 if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
1603 }
1604
1605 if (*pwm) /* found already loaded module */
1606 {
1607 if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
1608
1609 if (((*pwm)->ldr.Flags & LDR_DONT_RESOLVE_REFS) &&
1610 !(flags & DONT_RESOLVE_DLL_REFERENCES))
1611 {
1612 (*pwm)->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
1613 fixup_imports( *pwm, load_path );
1614 }
1615 TRACE("Found loaded module %s for %s at %p, count=%d\n",
1616 debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
1617 (*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
1618 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1619 return STATUS_SUCCESS;
1620 }
1621
1622 main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
1623 MODULE_GetLoadOrderW( loadorder, main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
1624
1625 nts = STATUS_DLL_NOT_FOUND;
1626 for (i = 0; i < LOADORDER_NTYPES; i++)
1627 {
1628 if (loadorder[i] == LOADORDER_INVALID) break;
1629
1630 switch (loadorder[i])
1631 {
1632 case LOADORDER_DLL:
1633 TRACE("Trying native dll %s\n", debugstr_w(filename));
1634 if (!handle) continue; /* it cannot possibly be loaded */
1635 nts = load_native_dll( load_path, filename, handle, flags, pwm );
1636 filetype = "native";
1637 break;
1638 case LOADORDER_BI:
1639 TRACE("Trying built-in %s\n", debugstr_w(filename));
1640 nts = load_builtin_dll( load_path, filename, flags, pwm );
1641 filetype = "builtin";
1642 break;
1643 default:
1644 nts = STATUS_INTERNAL_ERROR;
1645 break;
1646 }
1647
1648 if (nts == STATUS_SUCCESS)
1649 {
1650 /* Initialize DLL just loaded */
1651 TRACE("Loaded module %s (%s) at %p\n",
1652 debugstr_w(filename), filetype, (*pwm)->ldr.BaseAddress);
1653 /* Set the ldr.LoadCount here so that an attach failure will */
1654 /* decrement the dependencies through the MODULE_FreeLibrary call. */
1655 (*pwm)->ldr.LoadCount = 1;
1656 if (handle) NtClose( handle );
1657 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1658 return nts;
1659 }
1660 if (nts != STATUS_DLL_NOT_FOUND) break;
1661 }
1662
1663 WARN("Failed to load module %s; status=%lx\n", debugstr_w(libname), nts);
1664 if (handle) NtClose( handle );
1665 if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
1666 return nts;
1667 }
1668
1669 /******************************************************************
1670 * LdrLoadDll (NTDLL.@)
1671 */
1672 NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
1673 const UNICODE_STRING *libname, HMODULE* hModule)
1674 {
1675 WINE_MODREF *wm;
1676 NTSTATUS nts;
1677
1678 RtlEnterCriticalSection( &loader_section );
1679
1680 if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
1681 nts = load_dll( path_name, libname->Buffer, flags, &wm );
1682
1683 if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
1684 {
1685 nts = process_attach( wm, NULL );
1686 if (nts != STATUS_SUCCESS)
1687 {
1688 LdrUnloadDll(wm->ldr.BaseAddress);
1689 wm = NULL;
1690 }
1691 }
1692 *hModule = (wm) ? wm->ldr.BaseAddress : NULL;
1693
1694 RtlLeaveCriticalSection( &loader_section );
1695 return nts;
1696 }
1697
1698 /******************************************************************
1699 * LdrQueryProcessModuleInformation
1700 *
1701 */
1702 NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
1703 ULONG buf_size, ULONG* req_size)
1704 {
1705 SYSTEM_MODULE* sm = &smi->Modules[0];
1706 ULONG size = sizeof(ULONG);
1707 NTSTATUS nts = STATUS_SUCCESS;
1708 ANSI_STRING str;
1709 char* ptr;
1710 PLIST_ENTRY mark, entry;
1711 PLDR_MODULE mod;
1712
1713 smi->ModulesCount = 0;
1714
1715 RtlEnterCriticalSection( &loader_section );
1716 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
1717 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
1718 {
1719 mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
1720 size += sizeof(*sm);
1721 if (size <= buf_size)
1722 {
1723 sm->Reserved1 = 0; /* FIXME */
1724 sm->Reserved2 = 0; /* FIXME */
1725 sm->ImageBaseAddress = mod->BaseAddress;
1726 sm->ImageSize = mod->SizeOfImage;
1727 sm->Flags = mod->Flags;
1728 sm->Id = 0; /* FIXME */
1729 sm->Rank = 0; /* FIXME */
1730 sm->Unknown = 0; /* FIXME */
1731 str.Length = 0;
1732 str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
1733 str.Buffer = (char*)sm->Name;
1734 RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
1735 ptr = strrchr(str.Buffer, '\\');
1736 sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0;
1737
1738 smi->ModulesCount++;
1739 sm++;
1740 }
1741 else nts = STATUS_INFO_LENGTH_MISMATCH;
1742 }
1743 RtlLeaveCriticalSection( &loader_section );
1744
1745 if (req_size) *req_size = size;
1746
1747 return nts;
1748 }
1749
1750 /******************************************************************
1751 * LdrShutdownProcess (NTDLL.@)
1752 *
1753 */
1754 void WINAPI LdrShutdownProcess(void)
1755 {
1756 TRACE("()\n");
1757 process_detach( TRUE, (LPVOID)1 );
1758 }
1759
1760 /******************************************************************
1761 * LdrShutdownThread (NTDLL.@)
1762 *
1763 */
1764 void WINAPI LdrShutdownThread(void)
1765 {
1766 PLIST_ENTRY mark, entry;
1767 PLDR_MODULE mod;
1768
1769 TRACE("()\n");
1770
1771 /* don't do any detach calls if process is exiting */
1772 if (process_detaching) return;
1773 /* FIXME: there is still a race here */
1774
1775 RtlEnterCriticalSection( &loader_section );
1776
1777 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1778 for (entry = mark->Blink; entry != mark; entry = entry->Blink)
1779 {
1780 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1781 InInitializationOrderModuleList);
1782 if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
1783 continue;
1784 if ( mod->Flags & LDR_NO_DLL_CALLS )
1785 continue;
1786
1787 MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
1788 DLL_THREAD_DETACH, NULL );
1789 }
1790
1791 RtlLeaveCriticalSection( &loader_section );
1792 }
1793
1794 /***********************************************************************
1795 * MODULE_FlushModrefs
1796 *
1797 * Remove all unused modrefs and call the internal unloading routines
1798 * for the library type.
1799 *
1800 * The loader_section must be locked while calling this function.
1801 */
1802 static void MODULE_FlushModrefs(void)
1803 {
1804 PLIST_ENTRY mark, entry, prev;
1805 PLDR_MODULE mod;
1806 WINE_MODREF*wm;
1807
1808 mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
1809 for (entry = mark->Blink; entry != mark; entry = prev)
1810 {
1811 mod = CONTAINING_RECORD(entry, LDR_MODULE,
1812 InInitializationOrderModuleList);
1813 wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
1814
1815 prev = entry->Blink;
1816 if (mod->LoadCount) continue;
1817
1818 RemoveEntryList(&mod->InLoadOrderModuleList);
1819 RemoveEntryList(&mod->InMemoryOrderModuleList);
1820 RemoveEntryList(&mod->InInitializationOrderModuleList);
1821
1822 TRACE(" unloading %s\n", debugstr_w(mod->FullDllName.Buffer));
1823 if (!TRACE_ON(module))
1824 TRACE_(loaddll)("Unloaded module %s : %s\n",
1825 debugstr_w(mod->FullDllName.Buffer),
1826 (wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
1827
1828 SERVER_START_REQ( unload_dll )
1829 {
1830 req->base = mod->BaseAddress;
1831 wine_server_call( req );
1832 }
1833 SERVER_END_REQ;
1834
1835 NtUnmapViewOfSection( NtCurrentProcess(), mod->BaseAddress );
1836 if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
1837 if (cached_modref == wm) cached_modref = NULL;
1838 RtlFreeUnicodeString( &mod->FullDllName );
1839 RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
1840 RtlFreeHeap( GetProcessHeap(), 0, wm );
1841 }
1842 }
1843
1844 /***********************************************************************
1845 * MODULE_DecRefCount
1846 *
1847 * The loader_section must be locked while calling this function.
1848 */
1849 static void MODULE_DecRefCount( WINE_MODREF *wm )
1850 {
1851 int i;
1852
1853 if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
1854 return;
1855
1856 if ( wm->ldr.LoadCount <= 0 )
1857 return;
1858
1859 --wm->ldr.LoadCount;
1860 TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
1861
1862 if ( wm->ldr.LoadCount == 0 )
1863 {
1864 wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
1865
1866 for ( i = 0; i < wm->nDeps; i++ )
1867 if ( wm->deps[i] )
1868 MODULE_DecRefCount( wm->deps[i] );
1869
1870 wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
1871 }
1872 }
1873
1874 /******************************************************************
1875 * LdrUnloadDll (NTDLL.@)
1876 *
1877 *
1878 */
1879 NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
1880 {
1881 NTSTATUS retv = STATUS_SUCCESS;
1882
1883 TRACE("(%p)\n", hModule);
1884
1885 RtlEnterCriticalSection( &loader_section );
1886
1887 /* if we're stopping the whole process (and forcing the removal of all
1888 * DLLs) the library will be freed anyway
1889 */
1890 if (!process_detaching)
1891 {
1892 WINE_MODREF *wm;
1893
1894 free_lib_count++;
1895 if ((wm = get_modref( hModule )) != NULL)
1896 {
1897 TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
1898
1899 /* Recursively decrement reference counts */
1900 MODULE_DecRefCount( wm );
1901
1902 /* Call process detach notifications */
1903 if ( free_lib_count <= 1 )
1904 {
1905 process_detach( FALSE, NULL );
1906 MODULE_FlushModrefs();
1907 }
1908
1909 TRACE("END\n");
1910 }
1911 else
1912 retv = STATUS_DLL_NOT_FOUND;
1913
1914 free_lib_count--;
1915 }
1916
1917 RtlLeaveCriticalSection( &loader_section );
1918
1919 return retv;
1920 }
1921
1922 /***********************************************************************
1923 * RtlImageNtHeader (NTDLL.@)
1924 */
1925 PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
1926 {
1927 IMAGE_NT_HEADERS *ret;
1928
1929 __TRY
1930 {
1931 IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
1932
1933 ret = NULL;
1934 if (dos->e_magic == IMAGE_DOS_SIGNATURE)
1935 {
1936 ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
1937 if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
1938 }
1939 }
1940 __EXCEPT(page_fault)
1941 {
1942 return NULL;
1943 }
1944 __ENDTRY
1945 return ret;
1946 }
1947
1948
1949 /******************************************************************
1950 * LdrInitializeThunk (NTDLL.@)
1951 *
1952 * FIXME: the arguments are not correct, main_file is a Wine invention.
1953 */
1954 void WINAPI LdrInitializeThunk( HANDLE main_file, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
1955 {
1956 NTSTATUS status;
1957 WINE_MODREF *wm;
1958 LPCWSTR load_path;
1959 PEB *peb = NtCurrentTeb()->Peb;
1960 UNICODE_STRING *main_exe_name = &peb->ProcessParameters->ImagePathName;
1961 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
1962
1963 version_init( main_exe_name->Buffer );
1964
1965 /* allocate the modref for the main exe */
1966 if (!(wm = alloc_module( peb->ImageBaseAddress, main_exe_name->Buffer )))
1967 {
1968 status = STATUS_NO_MEMORY;
1969 goto error;
1970 }
1971 wm->ldr.LoadCount = -1; /* can't unload main exe */
1972
1973 /* the main exe needs to be the first in the load order list */
1974 RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
1975 InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
1976
1977 /* Install signal handlers; this cannot be done before, since we cannot
1978 * send exceptions to the debugger before the create process event that
1979 * is sent by REQ_INIT_PROCESS_DONE.
1980 * We do need the handlers in place by the time the request is over, so
1981 * we set them up here. If we segfault between here and the server call
1982 * something is very wrong... */
1983 if (!SIGNAL_Init()) exit(1);
1984
1985 /* Signal the parent process to continue */
1986 SERVER_START_REQ( init_process_done )
1987 {
1988 req->module = peb->ImageBaseAddress;
1989 req->module_size = wm->ldr.SizeOfImage;
1990 req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint;
1991 /* API requires a double indirection */
1992 req->name = &main_exe_name->Buffer;
1993 req->exe_file = main_file;
1994 req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI);
1995 wine_server_add_data( req, main_exe_name->Buffer, main_exe_name->Length );
1996 wine_server_call( req );
1997 }
1998 SERVER_END_REQ;
1999
2000 if (main_file) NtClose( main_file ); /* we no longer need it */
2001
2002 RtlEnterCriticalSection( &loader_section );
2003
2004 load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
2005 if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
2006 if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
2007 if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
2008 if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS)
2009 {
2010 if (last_failed_modref)
2011 ERR( "%s failed to initialize, aborting\n", debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
2012 goto error;
2013 }
2014 attach_implicitly_loaded_dlls( (LPVOID)1 );
2015
2016 RtlLeaveCriticalSection( &loader_section );
2017
2018 if (nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE) VIRTUAL_UseLargeAddressSpace();
2019 return;
2020
2021 error:
2022 ERR( "Main exe initialization for %s failed, status %lx\n", debugstr_w(main_exe_name->Buffer), status );
2023 exit(1);
2024 }
2025
2026
2027 /***********************************************************************
2028 * RtlImageDirectoryEntryToData (NTDLL.@)
2029 */
2030 PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
2031 {
2032 const IMAGE_NT_HEADERS *nt;
2033 DWORD addr;
2034
2035 if ((ULONG_PTR)module & 1) /* mapped as data file */
2036 {
2037 module = (HMODULE)((ULONG_PTR)module & ~1);
2038 image = FALSE;
2039 }
2040 if (!(nt = RtlImageNtHeader( module ))) return NULL;
2041 if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
2042 if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
2043 *size = nt->OptionalHeader.DataDirectory[dir].Size;
2044 if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
2045
2046 /* not mapped as image, need to find the section containing the virtual address */
2047 return RtlImageRvaToVa( nt, module, addr, NULL );
2048 }
2049
2050
2051 /***********************************************************************
2052 * RtlImageRvaToSection (NTDLL.@)
2053 */
2054 PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
2055 HMODULE module, DWORD rva )
2056 {
2057 int i;
2058 const IMAGE_SECTION_HEADER *sec;
2059
2060 sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
2061 nt->FileHeader.SizeOfOptionalHeader);
2062 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
2063 {
2064 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2065 return (PIMAGE_SECTION_HEADER)sec;
2066 }
2067 return NULL;
2068 }
2069
2070
2071 /***********************************************************************
2072 * RtlImageRvaToVa (NTDLL.@)
2073 */
2074 PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
2075 DWORD rva, IMAGE_SECTION_HEADER **section )
2076 {
2077 IMAGE_SECTION_HEADER *sec;
2078
2079 if (section && *section) /* try this section first */
2080 {
2081 sec = *section;
2082 if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
2083 goto found;
2084 }
2085 if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
2086 found:
2087 if (section) *section = sec;
2088 return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
2089 }
2090
2091
2092 /***********************************************************************
2093 * NtLoadDriver (NTDLL.@)
2094 * ZwLoadDriver (NTDLL.@)
2095 */
2096 NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
2097 {
2098 FIXME("(%p), stub!\n",DriverServiceName);
2099 return STATUS_NOT_IMPLEMENTED;
2100 }
2101
2102
2103 /***********************************************************************
2104 * NtUnloadDriver (NTDLL.@)
2105 * ZwUnloadDriver (NTDLL.@)
2106 */
2107 NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName )
2108 {
2109 FIXME("(%p), stub!\n",DriverServiceName);
2110 return STATUS_NOT_IMPLEMENTED;
2111 }
2112
2113
2114 /******************************************************************
2115 * DllMain (NTDLL.@)
2116 */
2117 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
2118 {
2119 if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
2120 return TRUE;
2121 }
2122
2123
2124 /******************************************************************
2125 * __wine_init_windows_dir (NTDLL.@)
2126 *
2127 * Windows and system dir initialization once kernel32 has been loaded.
2128 */
2129 void __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
2130 {
2131 PLIST_ENTRY mark, entry;
2132 LPWSTR buffer, p;
2133
2134 RtlCreateUnicodeString( &system_dir, sysdir );
2135
2136 /* prepend the system dir to the name of the already created modules */
2137 mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
2138 for (entry = mark->Flink; entry != mark; entry = entry->Flink)
2139 {
2140 LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
2141
2142 assert( mod->Flags & LDR_WINE_INTERNAL );
2143
2144 buffer = RtlAllocateHeap( GetProcessHeap(), 0,
2145 system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
2146 if (!buffer) continue;
2147 strcpyW( buffer, system_dir.Buffer );
2148 p = buffer + strlenW( buffer );
2149 if (p > buffer && p[-1] != '\\') *p++ = '\\';
2150 strcpyW( p, mod->FullDllName.Buffer );
2151 RtlInitUnicodeString( &mod->FullDllName, buffer );
2152 RtlInitUnicodeString( &mod->BaseDllName, p );
2153 }
2154 }
2155
2156
2157 /***********************************************************************
2158 * __wine_process_init
2159 */
2160 void __wine_process_init( int argc, char *argv[] )
2161 {
2162 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
2163
2164 WINE_MODREF *wm;
2165 NTSTATUS status;
2166 ANSI_STRING func_name;
2167 void (* DECLSPEC_NORETURN init_func)();
2168 extern mode_t FILE_umask;
2169
2170 thread_init();
2171
2172 /* retrieve current umask */
2173 FILE_umask = umask(0777);
2174 umask( FILE_umask );
2175
2176 /* setup the load callback and create ntdll modref */
2177 wine_dll_set_callback( load_builtin_callback );
2178
2179 if ((status = load_builtin_dll( NULL, kernel32W, 0, &wm )) != STATUS_SUCCESS)
2180 {
2181 MESSAGE( "wine: could not load kernel32.dll, status %lx\n", status );
2182 exit(1);
2183 }
2184 RtlInitAnsiString( &func_name, "__wine_kernel_init" );
2185 if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
2186 0, (void **)&init_func )) != STATUS_SUCCESS)
2187 {
2188 MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %lx\n", status );
2189 exit(1);
2190 }
2191 init_func();
2192 }