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[wine/multimedia.git] / dlls / dbghelp / stack.c
blob6405d66cdeb5d398ed8a2f865c4182359d949b95
1 /*
2 * Stack walking
4 * Copyright 1995 Alexandre Julliard
5 * Copyright 1996 Eric Youngdale
6 * Copyright 1999 Ove Kåven
7 * Copyright 2004 Eric Pouech
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 #include "config.h"
25 #include <stdlib.h>
26 #include <stdio.h>
27 #include <string.h>
28 #include <assert.h>
30 #include "ntstatus.h"
31 #define WIN32_NO_STATUS
32 #include "dbghelp_private.h"
33 #include "winreg.h"
34 #include "winternl.h"
35 #include "wine/winbase16.h"
36 #include "wine/debug.h"
38 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
40 enum st_mode {stm_start, stm_32bit, stm_16bit, stm_done};
42 static const char* wine_dbgstr_addr(const ADDRESS* addr)
44 if (!addr) return "(null)";
45 switch (addr->Mode)
47 case AddrModeFlat:
48 return wine_dbg_sprintf("flat<%08lx>", addr->Offset);
49 case AddrMode1616:
50 return wine_dbg_sprintf("1616<%04x:%04lx>", addr->Segment, addr->Offset);
51 case AddrMode1632:
52 return wine_dbg_sprintf("1632<%04x:%08lx>", addr->Segment, addr->Offset);
53 case AddrModeReal:
54 return wine_dbg_sprintf("real<%04x:%04lx>", addr->Segment, addr->Offset);
55 default:
56 return "unknown";
60 static BOOL CALLBACK read_mem(HANDLE hProcess, DWORD addr, void* buffer,
61 DWORD size, LPDWORD nread)
63 return ReadProcessMemory(hProcess, (void*)addr, buffer, size, nread);
66 static BOOL CALLBACK read_mem64(HANDLE hProcess, DWORD64 addr, void* buffer,
67 DWORD size, LPDWORD nread)
69 return ReadProcessMemory(hProcess, (void*)(DWORD_PTR)addr, buffer, size, nread);
72 /* indexes in Reserved array */
73 #define __CurrentMode 0
74 #define __CurrentSwitch 1
75 #define __NextSwitch 2
77 #define curr_mode (frame->Reserved[__CurrentMode])
78 #define curr_switch (frame->Reserved[__CurrentSwitch])
79 #define next_switch (frame->Reserved[__NextSwitch])
81 struct stack_walk_callback
83 HANDLE hProcess;
84 HANDLE hThread;
85 BOOL is32;
86 union
88 struct
90 PREAD_PROCESS_MEMORY_ROUTINE f_read_mem;
91 PTRANSLATE_ADDRESS_ROUTINE f_xlat_adr;
92 PFUNCTION_TABLE_ACCESS_ROUTINE f_tabl_acs;
93 PGET_MODULE_BASE_ROUTINE f_modl_bas;
94 } s32;
95 struct
97 PREAD_PROCESS_MEMORY_ROUTINE64 f_read_mem;
98 PTRANSLATE_ADDRESS_ROUTINE64 f_xlat_adr;
99 PFUNCTION_TABLE_ACCESS_ROUTINE64 f_tabl_acs;
100 PGET_MODULE_BASE_ROUTINE64 f_modl_bas;
101 } s64;
102 } u;
105 static inline void addr_32to64(const ADDRESS* addr32, ADDRESS64* addr64)
107 addr64->Offset = (ULONG64)addr32->Offset;
108 addr64->Segment = addr32->Segment;
109 addr64->Mode = addr32->Mode;
112 static inline void addr_64to32(const ADDRESS64* addr64, ADDRESS* addr32)
114 addr32->Offset = (ULONG)addr64->Offset;
115 addr32->Segment = addr64->Segment;
116 addr32->Mode = addr64->Mode;
119 static inline BOOL sw_read_mem(struct stack_walk_callback* cb, DWORD addr, void* ptr, DWORD sz)
121 if (cb->is32)
122 return cb->u.s32.f_read_mem(cb->hProcess, addr, ptr, sz, NULL);
123 else
124 return cb->u.s64.f_read_mem(cb->hProcess, addr, ptr, sz, NULL);
127 static inline DWORD sw_xlat_addr(struct stack_walk_callback* cb, ADDRESS* addr)
129 if (addr->Mode == AddrModeFlat) return addr->Offset;
130 if (cb->is32) return cb->u.s32.f_xlat_adr(cb->hProcess, cb->hThread, addr);
131 if (cb->u.s64.f_xlat_adr)
133 ADDRESS64 addr64;
135 addr_32to64(addr, &addr64);
136 return cb->u.s64.f_xlat_adr(cb->hProcess, cb->hThread, &addr64);
138 return addr_to_linear(cb->hProcess, cb->hThread, addr);
141 static inline void* sw_tabl_acs(struct stack_walk_callback* cb, DWORD addr)
143 if (cb->is32)
144 return cb->u.s32.f_tabl_acs(cb->hProcess, addr);
145 else
146 return cb->u.s64.f_tabl_acs(cb->hProcess, addr);
149 static inline DWORD sw_modl_bas(struct stack_walk_callback* cb, DWORD addr)
151 if (cb->is32)
152 return cb->u.s32.f_modl_bas(cb->hProcess, addr);
153 else
154 return cb->u.s64.f_modl_bas(cb->hProcess, addr);
157 static BOOL stack_walk(struct stack_walk_callback* cb, LPSTACKFRAME frame)
159 STACK32FRAME frame32;
160 STACK16FRAME frame16;
161 char ch;
162 ADDRESS tmp;
163 DWORD p;
164 WORD val;
165 BOOL do_switch;
167 /* sanity check */
168 if (curr_mode >= stm_done) return FALSE;
170 TRACE("Enter: PC=%s Frame=%s Return=%s Stack=%s Mode=%s cSwitch=%08lx nSwitch=%08lx\n",
171 wine_dbgstr_addr(&frame->AddrPC),
172 wine_dbgstr_addr(&frame->AddrFrame),
173 wine_dbgstr_addr(&frame->AddrReturn),
174 wine_dbgstr_addr(&frame->AddrStack),
175 curr_mode == stm_start ? "start" : (curr_mode == stm_16bit ? "16bit" : "32bit"),
176 curr_switch, next_switch);
178 if (curr_mode == stm_start)
180 THREAD_BASIC_INFORMATION info;
182 if ((frame->AddrPC.Mode == AddrModeFlat) &&
183 (frame->AddrFrame.Mode != AddrModeFlat))
185 WARN("Bad AddrPC.Mode / AddrFrame.Mode combination\n");
186 goto done_err;
189 /* Init done */
190 curr_mode = (frame->AddrPC.Mode == AddrModeFlat) ?
191 stm_32bit : stm_16bit;
193 /* cur_switch holds address of WOW32Reserved field in TEB in debuggee
194 * address space
196 if (NtQueryInformationThread(cb->hThread, ThreadBasicInformation, &info,
197 sizeof(info), NULL) == STATUS_SUCCESS)
199 curr_switch = (unsigned long)info.TebBaseAddress + FIELD_OFFSET(TEB, WOW32Reserved);
200 if (!sw_read_mem(cb, curr_switch, &next_switch, sizeof(next_switch)))
202 WARN("Can't read TEB:WOW32Reserved\n");
203 goto done_err;
205 if (curr_mode == stm_16bit)
207 if (!sw_read_mem(cb, next_switch, &frame32, sizeof(frame32)))
209 WARN("Bad stack frame 0x%08lx\n", next_switch);
210 goto done_err;
212 curr_switch = (DWORD)frame32.frame16;
213 tmp.Mode = AddrMode1616;
214 tmp.Segment = SELECTOROF(curr_switch);
215 tmp.Offset = OFFSETOF(curr_switch);
216 if (!sw_read_mem(cb, sw_xlat_addr(cb, &tmp), &ch, sizeof(ch)))
217 curr_switch = 0xFFFFFFFF;
219 else
221 tmp.Mode = AddrMode1616;
222 tmp.Segment = SELECTOROF(next_switch);
223 tmp.Offset = OFFSETOF(next_switch);
224 p = sw_xlat_addr(cb, &tmp);
225 if (!sw_read_mem(cb, p, &frame16, sizeof(frame16)))
227 WARN("Bad stack frame 0x%08lx\n", p);
228 goto done_err;
230 curr_switch = (DWORD)frame16.frame32;
232 if (!sw_read_mem(cb, curr_switch, &ch, sizeof(ch)))
233 curr_switch = 0xFFFFFFFF;
236 else
237 /* FIXME: this will allow to work when we're not attached to a live target,
238 * but the 16 <=> 32 switch facility won't be available.
240 curr_switch = 0;
241 frame->AddrReturn.Mode = frame->AddrStack.Mode = (curr_mode == stm_16bit) ? AddrMode1616 : AddrModeFlat;
242 /* don't set up AddrStack on first call. Either the caller has set it up, or
243 * we will get it in the next frame
245 memset(&frame->AddrBStore, 0, sizeof(frame->AddrBStore));
247 else
249 if (frame->AddrFrame.Offset == 0) goto done_err;
250 if (frame->AddrFrame.Mode == AddrModeFlat)
252 assert(curr_mode == stm_32bit);
253 do_switch = curr_switch && frame->AddrFrame.Offset >= curr_switch;
255 else
257 assert(curr_mode == stm_16bit);
258 do_switch = curr_switch &&
259 frame->AddrFrame.Segment == SELECTOROF(curr_switch) &&
260 frame->AddrFrame.Offset >= OFFSETOF(curr_switch);
263 if (do_switch)
265 if (curr_mode == stm_16bit)
267 if (!sw_read_mem(cb, next_switch, &frame32, sizeof(frame32)))
269 WARN("Bad stack frame 0x%08lx\n", next_switch);
270 goto done_err;
273 frame->AddrPC.Mode = AddrModeFlat;
274 frame->AddrPC.Segment = 0;
275 frame->AddrPC.Offset = frame32.retaddr;
276 frame->AddrFrame.Mode = AddrModeFlat;
277 frame->AddrFrame.Segment = 0;
278 frame->AddrFrame.Offset = frame32.ebp;
280 frame->AddrStack.Mode = AddrModeFlat;
281 frame->AddrStack.Segment = 0;
282 frame->AddrReturn.Mode = AddrModeFlat;
283 frame->AddrReturn.Segment = 0;
285 next_switch = curr_switch;
286 tmp.Mode = AddrMode1616;
287 tmp.Segment = SELECTOROF(next_switch);
288 tmp.Offset = OFFSETOF(next_switch);
289 p = sw_xlat_addr(cb, &tmp);
291 if (!sw_read_mem(cb, p, &frame16, sizeof(frame16)))
293 WARN("Bad stack frame 0x%08lx\n", p);
294 goto done_err;
296 curr_switch = (DWORD)frame16.frame32;
297 curr_mode = stm_32bit;
298 if (!sw_read_mem(cb, curr_switch, &ch, sizeof(ch)))
299 curr_switch = 0;
301 else
303 tmp.Mode = AddrMode1616;
304 tmp.Segment = SELECTOROF(next_switch);
305 tmp.Offset = OFFSETOF(next_switch);
306 p = sw_xlat_addr(cb, &tmp);
308 if (!sw_read_mem(cb, p, &frame16, sizeof(frame16)))
310 WARN("Bad stack frame 0x%08lx\n", p);
311 goto done_err;
314 TRACE("Got a 16 bit stack switch:"
315 "\n\tframe32: %08lx"
316 "\n\tedx:%08lx ecx:%08lx ebp:%08lx"
317 "\n\tds:%04x es:%04x fs:%04x gs:%04x"
318 "\n\tcall_from_ip:%08lx module_cs:%04lx relay=%08lx"
319 "\n\tentry_ip:%04x entry_point:%08lx"
320 "\n\tbp:%04x ip:%04x cs:%04x\n",
321 (unsigned long)frame16.frame32,
322 frame16.edx, frame16.ecx, frame16.ebp,
323 frame16.ds, frame16.es, frame16.fs, frame16.gs,
324 frame16.callfrom_ip, frame16.module_cs, frame16.relay,
325 frame16.entry_ip, frame16.entry_point,
326 frame16.bp, frame16.ip, frame16.cs);
329 frame->AddrPC.Mode = AddrMode1616;
330 frame->AddrPC.Segment = frame16.cs;
331 frame->AddrPC.Offset = frame16.ip;
333 frame->AddrFrame.Mode = AddrMode1616;
334 frame->AddrFrame.Segment = SELECTOROF(next_switch);
335 frame->AddrFrame.Offset = frame16.bp;
337 frame->AddrStack.Mode = AddrMode1616;
338 frame->AddrStack.Segment = SELECTOROF(next_switch);
340 frame->AddrReturn.Mode = AddrMode1616;
341 frame->AddrReturn.Segment = frame16.cs;
343 next_switch = curr_switch;
344 if (!sw_read_mem(cb, next_switch, &frame32, sizeof(frame32)))
346 WARN("Bad stack frame 0x%08lx\n", next_switch);
347 goto done_err;
349 curr_switch = (DWORD)frame32.frame16;
350 tmp.Mode = AddrMode1616;
351 tmp.Segment = SELECTOROF(curr_switch);
352 tmp.Offset = OFFSETOF(curr_switch);
354 if (!sw_read_mem(cb, sw_xlat_addr(cb, &tmp), &ch, sizeof(ch)))
355 curr_switch = 0;
356 curr_mode = stm_16bit;
359 else
361 frame->AddrPC = frame->AddrReturn;
362 if (curr_mode == stm_16bit)
364 frame->AddrStack.Offset = frame->AddrFrame.Offset + 2 * sizeof(WORD);
365 /* "pop up" previous BP value */
366 if (!sw_read_mem(cb, sw_xlat_addr(cb, &frame->AddrFrame),
367 &val, sizeof(WORD)))
368 goto done_err;
369 frame->AddrFrame.Offset = val;
371 else
373 frame->AddrStack.Offset = frame->AddrFrame.Offset + 2 * sizeof(DWORD);
374 /* "pop up" previous EBP value */
375 if (!sw_read_mem(cb, frame->AddrFrame.Offset,
376 &frame->AddrFrame.Offset, sizeof(DWORD)))
377 goto done_err;
382 if (curr_mode == stm_16bit)
384 int i;
386 p = sw_xlat_addr(cb, &frame->AddrFrame);
387 if (!sw_read_mem(cb, p + sizeof(WORD), &val, sizeof(WORD)))
388 goto done_err;
389 frame->AddrReturn.Offset = val;
390 /* get potential cs if a far call was used */
391 if (!sw_read_mem(cb, p + 2 * sizeof(WORD), &val, sizeof(WORD)))
392 goto done_err;
393 if (frame->AddrFrame.Offset & 1)
394 frame->AddrReturn.Segment = val; /* far call assumed */
395 else
397 /* not explicitly marked as far call,
398 * but check whether it could be anyway
400 if ((val & 7) == 7 && val != frame->AddrReturn.Segment)
402 LDT_ENTRY le;
404 if (GetThreadSelectorEntry(cb->hThread, val, &le) &&
405 (le.HighWord.Bits.Type & 0x08)) /* code segment */
407 /* it is very uncommon to push a code segment cs as
408 * a parameter, so this should work in most cases
410 frame->AddrReturn.Segment = val;
414 frame->AddrFrame.Offset &= ~1;
415 /* we "pop" parameters as 16 bit entities... of course, this won't
416 * work if the parameter is in fact bigger than 16bit, but
417 * there's no way to know that here
419 for (i = 0; i < sizeof(frame->Params) / sizeof(frame->Params[0]); i++)
421 sw_read_mem(cb, p + (2 + i) * sizeof(WORD), &val, sizeof(val));
422 frame->Params[i] = val;
425 else
427 if (!sw_read_mem(cb, frame->AddrFrame.Offset + sizeof(DWORD),
428 &frame->AddrReturn.Offset, sizeof(DWORD)))
430 WARN("Cannot read new frame offset %08lx\n", frame->AddrFrame.Offset + sizeof(DWORD));
431 goto done_err;
433 sw_read_mem(cb, frame->AddrFrame.Offset + 2 * sizeof(DWORD),
434 frame->Params, sizeof(frame->Params));
437 frame->Far = TRUE;
438 frame->Virtual = TRUE;
439 p = sw_xlat_addr(cb, &frame->AddrPC);
440 if (p && sw_modl_bas(cb, p))
441 frame->FuncTableEntry = sw_tabl_acs(cb, p);
442 else
443 frame->FuncTableEntry = NULL;
445 TRACE("Leave: PC=%s Frame=%s Return=%s Stack=%s Mode=%s cSwitch=%08lx nSwitch=%08lx FuncTable=%p\n",
446 wine_dbgstr_addr(&frame->AddrPC),
447 wine_dbgstr_addr(&frame->AddrFrame),
448 wine_dbgstr_addr(&frame->AddrReturn),
449 wine_dbgstr_addr(&frame->AddrStack),
450 curr_mode == stm_start ? "start" : (curr_mode == stm_16bit ? "16bit" : "32bit"),
451 curr_switch, next_switch, frame->FuncTableEntry);
453 return TRUE;
454 done_err:
455 curr_mode = stm_done;
456 return FALSE;
459 /***********************************************************************
460 * StackWalk (DBGHELP.@)
462 BOOL WINAPI StackWalk(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
463 LPSTACKFRAME frame, LPVOID ctx,
464 PREAD_PROCESS_MEMORY_ROUTINE f_read_mem,
465 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
466 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
467 PTRANSLATE_ADDRESS_ROUTINE f_xlat_adr)
469 struct stack_walk_callback swcb;
471 TRACE("(%ld, %p, %p, %p, %p, %p, %p, %p, %p)\n",
472 MachineType, hProcess, hThread, frame, ctx,
473 f_read_mem, FunctionTableAccessRoutine,
474 GetModuleBaseRoutine, f_xlat_adr);
476 if (MachineType != IMAGE_FILE_MACHINE_I386)
478 SetLastError(ERROR_INVALID_PARAMETER);
479 return FALSE;
482 swcb.hProcess = hProcess;
483 swcb.hThread = hThread;
484 swcb.is32 = TRUE;
485 /* sigh... MS isn't even consistent in the func prototypes */
486 swcb.u.s32.f_read_mem = (f_read_mem) ? f_read_mem : read_mem;
487 swcb.u.s32.f_xlat_adr = (f_xlat_adr) ? f_xlat_adr : addr_to_linear;
488 swcb.u.s32.f_tabl_acs = (FunctionTableAccessRoutine) ? FunctionTableAccessRoutine : SymFunctionTableAccess;
489 swcb.u.s32.f_modl_bas = (GetModuleBaseRoutine) ? GetModuleBaseRoutine : SymGetModuleBase;
491 return stack_walk(&swcb, frame);
495 /***********************************************************************
496 * StackWalk64 (DBGHELP.@)
498 BOOL WINAPI StackWalk64(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
499 LPSTACKFRAME64 frame64, LPVOID ctx,
500 PREAD_PROCESS_MEMORY_ROUTINE64 f_read_mem,
501 PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine,
502 PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine,
503 PTRANSLATE_ADDRESS_ROUTINE64 f_xlat_adr)
505 struct stack_walk_callback swcb;
506 STACKFRAME frame32;
507 BOOL ret;
509 TRACE("(%ld, %p, %p, %p, %p, %p, %p, %p, %p)\n",
510 MachineType, hProcess, hThread, frame64, ctx,
511 f_read_mem, FunctionTableAccessRoutine,
512 GetModuleBaseRoutine, f_xlat_adr);
514 if (MachineType != IMAGE_FILE_MACHINE_I386)
516 SetLastError(ERROR_INVALID_PARAMETER);
517 return FALSE;
520 addr_64to32(&frame64->AddrPC, &frame32.AddrPC);
521 addr_64to32(&frame64->AddrReturn, &frame32.AddrReturn);
522 addr_64to32(&frame64->AddrFrame, &frame32.AddrFrame);
523 addr_64to32(&frame64->AddrStack, &frame32.AddrStack);
524 addr_64to32(&frame64->AddrBStore, &frame32.AddrBStore);
525 frame32.FuncTableEntry = frame64->FuncTableEntry; /* FIXME */
526 frame32.Far = frame64->Far;
527 frame32.Virtual = frame64->Virtual;
528 frame32.Reserved[0] = (ULONG)frame64->Reserved[0];
529 frame32.Reserved[1] = (ULONG)frame64->Reserved[1];
530 frame32.Reserved[2] = (ULONG)frame64->Reserved[2];
531 /* we don't handle KdHelp */
533 swcb.hProcess = hProcess;
534 swcb.hThread = hThread;
535 swcb.is32 = FALSE;
536 /* sigh... MS isn't even consistent in the func prototypes */
537 swcb.u.s64.f_read_mem = (f_read_mem) ? f_read_mem : read_mem64;
538 swcb.u.s64.f_xlat_adr = f_xlat_adr;
539 swcb.u.s64.f_tabl_acs = (FunctionTableAccessRoutine) ? FunctionTableAccessRoutine : SymFunctionTableAccess64;
540 swcb.u.s64.f_modl_bas = (GetModuleBaseRoutine) ? GetModuleBaseRoutine : SymGetModuleBase64;
542 ret = stack_walk(&swcb, &frame32);
544 addr_32to64(&frame32.AddrPC, &frame64->AddrPC);
545 addr_32to64(&frame32.AddrReturn, &frame64->AddrReturn);
546 addr_32to64(&frame32.AddrFrame, &frame64->AddrFrame);
547 addr_32to64(&frame32.AddrStack, &frame64->AddrStack);
548 addr_32to64(&frame32.AddrBStore, &frame64->AddrBStore);
549 frame64->FuncTableEntry = frame32.FuncTableEntry; /* FIXME */
550 frame64->Params[0] = (ULONG)frame32.Params[0];
551 frame64->Params[1] = (ULONG)frame32.Params[1];
552 frame64->Params[2] = (ULONG)frame32.Params[2];
553 frame64->Params[3] = (ULONG)frame32.Params[3];
554 frame64->Far = frame32.Far;
555 frame64->Virtual = frame32.Virtual;
556 frame64->Reserved[0] = (ULONG)frame32.Reserved[0];
557 frame64->Reserved[1] = (ULONG)frame32.Reserved[1];
558 frame64->Reserved[2] = (ULONG)frame32.Reserved[2];
559 /* we don't handle KdHelp */
560 frame64->KdHelp.Thread = 0xC000FADE;
561 frame64->KdHelp.ThCallbackStack = 0x10;
562 frame64->KdHelp.ThCallbackBStore = 0;
563 frame64->KdHelp.NextCallback = 0;
564 frame64->KdHelp.FramePointer = 0;
565 frame64->KdHelp.KiCallUserMode = 0xD000DAFE;
566 frame64->KdHelp.KeUserCallbackDispatcher = 0xE000F000;
567 frame64->KdHelp.SystemRangeStart = 0xC0000000;
568 frame64->KdHelp.Reserved[0] /* KiUserExceptionDispatcher */ = 0xE0005000;
570 return ret;
573 /******************************************************************
574 * SymRegisterFunctionEntryCallback (DBGHELP.@)
578 BOOL WINAPI SymRegisterFunctionEntryCallback(HANDLE hProc,
579 PSYMBOL_FUNCENTRY_CALLBACK cb, PVOID user)
581 FIXME("(%p %p %p): stub!\n", hProc, cb, user);
582 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
583 return FALSE;
586 /******************************************************************
587 * SymRegisterFunctionEntryCallback64 (DBGHELP.@)
591 BOOL WINAPI SymRegisterFunctionEntryCallback64(HANDLE hProc,
592 PSYMBOL_FUNCENTRY_CALLBACK64 cb,
593 ULONG64 user)
595 FIXME("(%p %p %s): stub!\n", hProc, cb, wine_dbgstr_longlong(user));
596 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
597 return FALSE;