2004-04-06 00:21:27 +02:00
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/*
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* Stack walking
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*
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* Copyright 1995 Alexandre Julliard
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* Copyright 1996 Eric Youngdale
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* Copyright 1999 Ove K<EFBFBD>ven
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* Copyright 2004 Eric Pouech
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "dbghelp_private.h"
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#include "winreg.h"
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#include "ntstatus.h"
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#include "winternl.h"
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2005-05-16 16:20:16 +02:00
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#include "wine/winbase16.h"
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2004-04-06 00:21:27 +02:00
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
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enum st_mode {stm_start, stm_32bit, stm_16bit, stm_done};
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static const char* wine_dbgstr_addr(const ADDRESS* addr)
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{
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if (!addr) return "(null)";
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switch (addr->Mode)
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{
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case AddrModeFlat:
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return wine_dbg_sprintf("flat<%08lx>", addr->Offset);
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case AddrMode1616:
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return wine_dbg_sprintf("1616<%04x:%04lx>", addr->Segment, addr->Offset);
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case AddrMode1632:
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return wine_dbg_sprintf("1632<%04x:%08lx>", addr->Segment, addr->Offset);
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case AddrModeReal:
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return wine_dbg_sprintf("real<%04x:%04lx>", addr->Segment, addr->Offset);
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default:
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return "unknown";
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}
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}
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2005-05-23 13:43:44 +02:00
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static BOOL CALLBACK read_mem(HANDLE hProcess, DWORD addr, void* buffer,
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DWORD size, LPDWORD nread)
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{
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return ReadProcessMemory(hProcess, (void*)addr, buffer, size, nread);
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}
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2004-04-06 00:21:27 +02:00
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/* indexes in Reserved array */
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#define __CurrentMode 0
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#define __CurrentSwitch 1
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#define __NextSwitch 2
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#define curr_mode (frame->Reserved[__CurrentMode])
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#define curr_switch (frame->Reserved[__CurrentSwitch])
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#define next_switch (frame->Reserved[__NextSwitch])
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/***********************************************************************
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* StackWalk (DBGHELP.@)
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*/
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BOOL WINAPI StackWalk(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
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2004-04-30 06:15:41 +02:00
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LPSTACKFRAME frame, LPVOID ctx,
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2004-04-06 00:21:27 +02:00
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PREAD_PROCESS_MEMORY_ROUTINE f_read_mem,
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PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
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PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
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PTRANSLATE_ADDRESS_ROUTINE f_xlat_adr)
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{
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STACK32FRAME frame32;
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STACK16FRAME frame16;
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char ch;
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ADDRESS tmp;
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DWORD p;
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WORD val;
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BOOL do_switch;
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TRACE("(%ld, %p, %p, %p, %p, %p, %p, %p, %p)\n",
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2004-04-30 06:15:41 +02:00
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MachineType, hProcess, hThread, frame, ctx,
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2004-04-06 00:21:27 +02:00
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f_read_mem, FunctionTableAccessRoutine,
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GetModuleBaseRoutine, f_xlat_adr);
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if (MachineType != IMAGE_FILE_MACHINE_I386)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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/* sanity check */
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if (curr_mode >= stm_done) return FALSE;
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2005-05-23 13:43:44 +02:00
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/* sigh... MS isn't even consistent in the func prototypes */
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if (!f_read_mem) f_read_mem = read_mem;
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2004-04-06 00:21:27 +02:00
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if (!f_xlat_adr) f_xlat_adr = addr_to_linear;
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TRACE("Enter: PC=%s Frame=%s Return=%s Stack=%s Mode=%s cSwitch=%08lx nSwitch=%08lx\n",
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wine_dbgstr_addr(&frame->AddrPC),
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wine_dbgstr_addr(&frame->AddrFrame),
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wine_dbgstr_addr(&frame->AddrReturn),
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wine_dbgstr_addr(&frame->AddrStack),
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curr_mode == stm_start ? "start" : (curr_mode == stm_16bit ? "16bit" : "32bit"),
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curr_switch, next_switch);
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if (curr_mode == stm_start)
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{
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THREAD_BASIC_INFORMATION info;
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2004-09-23 06:27:46 +02:00
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if ((frame->AddrPC.Mode == AddrModeFlat) &&
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(frame->AddrFrame.Mode != AddrModeFlat))
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{
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WARN("Bad AddrPC.Mode / AddrFrame.Mode combination\n");
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goto done_err;
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}
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2004-04-06 00:21:27 +02:00
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/* Init done */
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curr_mode = (frame->AddrPC.Mode == AddrModeFlat) ?
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stm_32bit : stm_16bit;
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2005-05-23 13:43:44 +02:00
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/* cur_switch holds address of WOW32Reserved field in TEB in debuggee
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2004-04-06 00:21:27 +02:00
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* address space
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*/
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if (NtQueryInformationThread(hThread, ThreadBasicInformation, &info,
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2005-05-23 13:43:44 +02:00
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sizeof(info), NULL) == STATUS_SUCCESS)
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2004-04-06 00:21:27 +02:00
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{
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2005-05-23 13:43:44 +02:00
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curr_switch = (unsigned long)info.TebBaseAddress + FIELD_OFFSET(TEB, WOW32Reserved);
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if (!f_read_mem(hProcess, curr_switch, &next_switch,
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sizeof(next_switch), NULL))
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2004-04-06 00:21:27 +02:00
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{
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2005-05-23 13:43:44 +02:00
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WARN("Can't read TEB:WOW32Reserved\n");
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2004-04-06 00:21:27 +02:00
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goto done_err;
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}
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2005-05-23 13:43:44 +02:00
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if (curr_mode == stm_16bit)
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2004-04-06 00:21:27 +02:00
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{
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2005-05-23 13:43:44 +02:00
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if (!f_read_mem(hProcess, next_switch, &frame32,
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sizeof(frame32), NULL))
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{
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WARN("Bad stack frame 0x%08lx\n", next_switch);
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goto done_err;
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}
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curr_switch = (DWORD)frame32.frame16;
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tmp.Mode = AddrMode1616;
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tmp.Segment = SELECTOROF(curr_switch);
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tmp.Offset = OFFSETOF(curr_switch);
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if (!f_read_mem(hProcess, f_xlat_adr(hProcess, hThread, &tmp),
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&ch, sizeof(ch), NULL))
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curr_switch = 0xFFFFFFFF;
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2004-04-06 00:21:27 +02:00
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}
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2005-05-23 13:43:44 +02:00
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else
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{
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tmp.Mode = AddrMode1616;
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tmp.Segment = SELECTOROF(next_switch);
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tmp.Offset = OFFSETOF(next_switch);
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p = f_xlat_adr(hProcess, hThread, &tmp);
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if (!f_read_mem(hProcess, p, &frame16, sizeof(frame16), NULL))
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{
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WARN("Bad stack frame 0x%08lx\n", p);
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goto done_err;
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}
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curr_switch = (DWORD)frame16.frame32;
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2004-04-06 00:21:27 +02:00
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2005-05-23 13:43:44 +02:00
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if (!f_read_mem(hProcess, curr_switch, &ch, sizeof(ch), NULL))
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curr_switch = 0xFFFFFFFF;
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}
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2004-04-06 00:21:27 +02:00
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}
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2005-05-23 13:43:44 +02:00
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else
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/* FIXME: this will allow to work when we're not attached to a live target,
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* but the 16 <=> 32 switch facility won't be available.
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*/
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curr_switch = 0;
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frame->AddrReturn.Mode = frame->AddrStack.Mode = (curr_mode == stm_16bit) ? AddrMode1616 : AddrModeFlat;
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2004-04-30 06:15:41 +02:00
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/* don't set up AddrStack on first call. Either the caller has set it up, or
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* we will get it in the next frame
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*/
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2004-04-06 00:21:27 +02:00
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}
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else
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{
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if (frame->AddrFrame.Offset == 0) goto done_err;
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if (frame->AddrFrame.Mode == AddrModeFlat)
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{
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assert(curr_mode == stm_32bit);
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do_switch = curr_switch && frame->AddrFrame.Offset >= curr_switch;
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}
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else
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{
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assert(curr_mode == stm_16bit);
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2005-05-23 13:43:44 +02:00
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do_switch = curr_switch &&
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2004-04-06 00:21:27 +02:00
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frame->AddrFrame.Segment == SELECTOROF(curr_switch) &&
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frame->AddrFrame.Offset >= OFFSETOF(curr_switch);
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}
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if (do_switch)
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{
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if (curr_mode == stm_16bit)
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{
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2005-05-23 13:43:44 +02:00
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if (!f_read_mem(hProcess, next_switch, &frame32,
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2004-04-06 00:21:27 +02:00
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sizeof(frame32), NULL))
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{
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WARN("Bad stack frame 0x%08lx\n", next_switch);
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goto done_err;
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}
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frame->AddrPC.Mode = AddrModeFlat;
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frame->AddrPC.Segment = 0;
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frame->AddrPC.Offset = frame32.retaddr;
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frame->AddrFrame.Mode = AddrModeFlat;
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frame->AddrFrame.Segment = 0;
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frame->AddrFrame.Offset = frame32.ebp;
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frame->AddrStack.Mode = AddrModeFlat;
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frame->AddrStack.Segment = 0;
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frame->AddrReturn.Mode = AddrModeFlat;
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frame->AddrReturn.Segment = 0;
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next_switch = curr_switch;
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tmp.Mode = AddrMode1616;
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tmp.Segment = SELECTOROF(next_switch);
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tmp.Offset = OFFSETOF(next_switch);
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p = f_xlat_adr(hProcess, hThread, &tmp);
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2005-05-23 13:43:44 +02:00
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if (!f_read_mem(hProcess, p, &frame16, sizeof(frame16), NULL))
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2004-04-06 00:21:27 +02:00
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{
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WARN("Bad stack frame 0x%08lx\n", p);
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goto done_err;
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}
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curr_switch = (DWORD)frame16.frame32;
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curr_mode = stm_32bit;
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2005-05-23 13:43:44 +02:00
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if (!f_read_mem(hProcess, curr_switch, &ch, sizeof(ch), NULL))
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curr_switch = 0;
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2004-04-06 00:21:27 +02:00
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}
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else
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{
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tmp.Mode = AddrMode1616;
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tmp.Segment = SELECTOROF(next_switch);
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tmp.Offset = OFFSETOF(next_switch);
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p = f_xlat_adr(hProcess, hThread, &tmp);
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|
2005-05-23 13:43:44 +02:00
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if (!f_read_mem(hProcess, p, &frame16, sizeof(frame16), NULL))
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2004-04-06 00:21:27 +02:00
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{
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WARN("Bad stack frame 0x%08lx\n", p);
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goto done_err;
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}
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TRACE("Got a 16 bit stack switch:"
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"\n\tframe32: %08lx"
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"\n\tedx:%08lx ecx:%08lx ebp:%08lx"
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"\n\tds:%04x es:%04x fs:%04x gs:%04x"
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"\n\tcall_from_ip:%08lx module_cs:%04lx relay=%08lx"
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"\n\tentry_ip:%04x entry_point:%08lx"
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"\n\tbp:%04x ip:%04x cs:%04x\n",
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(unsigned long)frame16.frame32,
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frame16.edx, frame16.ecx, frame16.ebp,
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frame16.ds, frame16.es, frame16.fs, frame16.gs,
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frame16.callfrom_ip, frame16.module_cs, frame16.relay,
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frame16.entry_ip, frame16.entry_point,
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frame16.bp, frame16.ip, frame16.cs);
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frame->AddrPC.Mode = AddrMode1616;
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frame->AddrPC.Segment = frame16.cs;
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frame->AddrPC.Offset = frame16.ip;
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frame->AddrFrame.Mode = AddrMode1616;
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frame->AddrFrame.Segment = SELECTOROF(next_switch);
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frame->AddrFrame.Offset = frame16.bp;
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frame->AddrStack.Mode = AddrMode1616;
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frame->AddrStack.Segment = SELECTOROF(next_switch);
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frame->AddrReturn.Mode = AddrMode1616;
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frame->AddrReturn.Segment = frame16.cs;
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next_switch = curr_switch;
|
2005-05-23 13:43:44 +02:00
|
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|
if (!f_read_mem(hProcess, next_switch, &frame32, sizeof(frame32), NULL))
|
2004-04-06 00:21:27 +02:00
|
|
|
|
{
|
|
|
|
|
WARN("Bad stack frame 0x%08lx\n", next_switch);
|
|
|
|
|
goto done_err;
|
|
|
|
|
}
|
|
|
|
|
curr_switch = (DWORD)frame32.frame16;
|
|
|
|
|
tmp.Mode = AddrMode1616;
|
|
|
|
|
tmp.Segment = SELECTOROF(curr_switch);
|
|
|
|
|
tmp.Offset = OFFSETOF(curr_switch);
|
|
|
|
|
|
2005-05-23 13:43:44 +02:00
|
|
|
|
if (!f_read_mem(hProcess, f_xlat_adr(hProcess, hThread, &tmp),
|
2004-04-06 00:21:27 +02:00
|
|
|
|
&ch, sizeof(ch), NULL))
|
2005-05-23 13:43:44 +02:00
|
|
|
|
curr_switch = 0;
|
2004-04-06 00:21:27 +02:00
|
|
|
|
curr_mode = stm_16bit;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
frame->AddrPC = frame->AddrReturn;
|
|
|
|
|
if (curr_mode == stm_16bit)
|
|
|
|
|
{
|
|
|
|
|
frame->AddrStack.Offset = frame->AddrFrame.Offset + 2 * sizeof(WORD);
|
|
|
|
|
/* "pop up" previous BP value */
|
|
|
|
|
if (!f_read_mem(hProcess,
|
2005-05-23 13:43:44 +02:00
|
|
|
|
f_xlat_adr(hProcess, hThread, &frame->AddrFrame),
|
2004-04-06 00:21:27 +02:00
|
|
|
|
&val, sizeof(WORD), NULL))
|
|
|
|
|
goto done_err;
|
|
|
|
|
frame->AddrFrame.Offset = val;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
frame->AddrStack.Offset = frame->AddrFrame.Offset + 2 * sizeof(DWORD);
|
|
|
|
|
/* "pop up" previous EBP value */
|
2005-05-23 13:43:44 +02:00
|
|
|
|
if (!f_read_mem(hProcess, frame->AddrFrame.Offset,
|
2004-04-06 00:21:27 +02:00
|
|
|
|
&frame->AddrFrame.Offset, sizeof(DWORD), NULL))
|
|
|
|
|
goto done_err;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (curr_mode == stm_16bit)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
p = f_xlat_adr(hProcess, hThread, &frame->AddrFrame);
|
2005-05-23 13:43:44 +02:00
|
|
|
|
if (!f_read_mem(hProcess, p + sizeof(WORD), &val, sizeof(WORD), NULL))
|
2004-04-06 00:21:27 +02:00
|
|
|
|
goto done_err;
|
|
|
|
|
frame->AddrReturn.Offset = val;
|
|
|
|
|
/* get potential cs if a far call was used */
|
2005-05-23 13:43:44 +02:00
|
|
|
|
if (!f_read_mem(hProcess, p + 2 * sizeof(WORD),
|
2004-04-06 00:21:27 +02:00
|
|
|
|
&val, sizeof(WORD), NULL))
|
|
|
|
|
goto done_err;
|
|
|
|
|
if (frame->AddrFrame.Offset & 1)
|
|
|
|
|
frame->AddrReturn.Segment = val; /* far call assumed */
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* not explicitly marked as far call,
|
|
|
|
|
* but check whether it could be anyway
|
|
|
|
|
*/
|
|
|
|
|
if ((val & 7) == 7 && val != frame->AddrReturn.Segment)
|
|
|
|
|
{
|
|
|
|
|
LDT_ENTRY le;
|
|
|
|
|
|
|
|
|
|
if (GetThreadSelectorEntry(hThread, val, &le) &&
|
|
|
|
|
(le.HighWord.Bits.Type & 0x08)) /* code segment */
|
|
|
|
|
{
|
|
|
|
|
/* it is very uncommon to push a code segment cs as
|
|
|
|
|
* a parameter, so this should work in most cases
|
|
|
|
|
*/
|
|
|
|
|
frame->AddrReturn.Segment = val;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
frame->AddrFrame.Offset &= ~1;
|
2004-04-20 06:03:42 +02:00
|
|
|
|
/* we "pop" parameters as 16 bit entities... of course, this won't
|
2004-04-06 00:21:27 +02:00
|
|
|
|
* work if the parameter is in fact bigger than 16bit, but
|
|
|
|
|
* there's no way to know that here
|
|
|
|
|
*/
|
|
|
|
|
for (i = 0; i < sizeof(frame->Params) / sizeof(frame->Params[0]); i++)
|
|
|
|
|
{
|
2005-05-23 13:43:44 +02:00
|
|
|
|
f_read_mem(hProcess, p + (2 + i) * sizeof(WORD),
|
2004-04-06 00:21:27 +02:00
|
|
|
|
&val, sizeof(val), NULL);
|
|
|
|
|
frame->Params[i] = val;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (!f_read_mem(hProcess,
|
2005-05-23 13:43:44 +02:00
|
|
|
|
frame->AddrFrame.Offset + sizeof(DWORD),
|
2004-04-06 00:21:27 +02:00
|
|
|
|
&frame->AddrReturn.Offset, sizeof(DWORD), NULL))
|
2005-05-23 13:43:44 +02:00
|
|
|
|
{
|
|
|
|
|
WARN("Cannot read new frame offset %08lx\n", frame->AddrFrame.Offset + sizeof(DWORD));
|
2004-04-06 00:21:27 +02:00
|
|
|
|
goto done_err;
|
2005-05-23 13:43:44 +02:00
|
|
|
|
}
|
2004-04-06 00:21:27 +02:00
|
|
|
|
f_read_mem(hProcess,
|
2005-05-23 13:43:44 +02:00
|
|
|
|
frame->AddrFrame.Offset + 2 * sizeof(DWORD),
|
2004-04-06 00:21:27 +02:00
|
|
|
|
frame->Params, sizeof(frame->Params), NULL);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
frame->Far = FALSE;
|
|
|
|
|
frame->Virtual = FALSE;
|
|
|
|
|
|
|
|
|
|
TRACE("Leave: PC=%s Frame=%s Return=%s Stack=%s Mode=%s cSwitch=%08lx nSwitch=%08lx\n",
|
|
|
|
|
wine_dbgstr_addr(&frame->AddrPC),
|
|
|
|
|
wine_dbgstr_addr(&frame->AddrFrame),
|
|
|
|
|
wine_dbgstr_addr(&frame->AddrReturn),
|
|
|
|
|
wine_dbgstr_addr(&frame->AddrStack),
|
|
|
|
|
curr_mode == stm_start ? "start" : (curr_mode == stm_16bit ? "16bit" : "32bit"),
|
|
|
|
|
curr_switch, next_switch);
|
|
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
|
done_err:
|
|
|
|
|
curr_mode = stm_done;
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
2005-11-28 10:40:02 +01:00
|
|
|
|
|
|
|
|
|
/******************************************************************
|
|
|
|
|
* SymRegisterFunctionEntryCallback (DBGHELP.@)
|
|
|
|
|
*
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
BOOL WINAPI SymRegisterFunctionEntryCallback(HANDLE hProc,
|
|
|
|
|
PSYMBOL_FUNCENTRY_CALLBACK cb, PVOID user)
|
|
|
|
|
{
|
|
|
|
|
FIXME("(%p %p %p): stub!\n", hProc, cb, user);
|
|
|
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/******************************************************************
|
|
|
|
|
* SymRegisterFunctionEntryCallback64 (DBGHELP.@)
|
|
|
|
|
*
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
BOOL WINAPI SymRegisterFunctionEntryCallback64(HANDLE hProc,
|
|
|
|
|
PSYMBOL_FUNCENTRY_CALLBACK64 cb,
|
|
|
|
|
ULONG64 user)
|
|
|
|
|
{
|
|
|
|
|
FIXME("(%p %p %s): stub!\n", hProc, cb, wine_dbgstr_longlong(user));
|
|
|
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
|