mirror of
https://github.com/reactos/wine.git
synced 2024-11-29 14:40:56 +00:00
389 lines
14 KiB
C
389 lines
14 KiB
C
/*
|
|
* Stack walking
|
|
*
|
|
* Copyright 1995 Alexandre Julliard
|
|
* Copyright 1996 Eric Youngdale
|
|
* Copyright 1999 Ove Kåven
|
|
* Copyright 2004 Eric Pouech
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include "dbghelp_private.h"
|
|
#include "winreg.h"
|
|
#include "ntstatus.h"
|
|
#include "thread.h" /* FIXME: must be included before winternl.h */
|
|
#include "winternl.h"
|
|
#include "wine/debug.h"
|
|
#include "stackframe.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
|
|
|
|
enum st_mode {stm_start, stm_32bit, stm_16bit, stm_done};
|
|
|
|
static const char* wine_dbgstr_addr(const ADDRESS* addr)
|
|
{
|
|
if (!addr) return "(null)";
|
|
switch (addr->Mode)
|
|
{
|
|
case AddrModeFlat:
|
|
return wine_dbg_sprintf("flat<%08lx>", addr->Offset);
|
|
case AddrMode1616:
|
|
return wine_dbg_sprintf("1616<%04x:%04lx>", addr->Segment, addr->Offset);
|
|
case AddrMode1632:
|
|
return wine_dbg_sprintf("1632<%04x:%08lx>", addr->Segment, addr->Offset);
|
|
case AddrModeReal:
|
|
return wine_dbg_sprintf("real<%04x:%04lx>", addr->Segment, addr->Offset);
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
|
|
/* indexes in Reserved array */
|
|
#define __CurrentMode 0
|
|
#define __CurrentSwitch 1
|
|
#define __NextSwitch 2
|
|
|
|
#define curr_mode (frame->Reserved[__CurrentMode])
|
|
#define curr_switch (frame->Reserved[__CurrentSwitch])
|
|
#define next_switch (frame->Reserved[__NextSwitch])
|
|
|
|
/***********************************************************************
|
|
* StackWalk (DBGHELP.@)
|
|
*/
|
|
BOOL WINAPI StackWalk(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
|
|
LPSTACKFRAME frame, LPVOID ctx,
|
|
PREAD_PROCESS_MEMORY_ROUTINE f_read_mem,
|
|
PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
|
|
PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
|
|
PTRANSLATE_ADDRESS_ROUTINE f_xlat_adr)
|
|
{
|
|
STACK32FRAME frame32;
|
|
STACK16FRAME frame16;
|
|
char ch;
|
|
ADDRESS tmp;
|
|
DWORD p;
|
|
WORD val;
|
|
BOOL do_switch;
|
|
|
|
TRACE("(%ld, %p, %p, %p, %p, %p, %p, %p, %p)\n",
|
|
MachineType, hProcess, hThread, frame, ctx,
|
|
f_read_mem, FunctionTableAccessRoutine,
|
|
GetModuleBaseRoutine, f_xlat_adr);
|
|
|
|
if (MachineType != IMAGE_FILE_MACHINE_I386)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
|
|
/* sanity check */
|
|
if (curr_mode >= stm_done) return FALSE;
|
|
|
|
if (!f_read_mem) f_read_mem = ReadProcessMemory;
|
|
if (!f_xlat_adr) f_xlat_adr = addr_to_linear;
|
|
|
|
TRACE("Enter: 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);
|
|
|
|
if (curr_mode == stm_start)
|
|
{
|
|
THREAD_BASIC_INFORMATION info;
|
|
|
|
if ((frame->AddrPC.Mode == AddrModeFlat) &&
|
|
(frame->AddrFrame.Mode != AddrModeFlat))
|
|
{
|
|
WARN("Bad AddrPC.Mode / AddrFrame.Mode combination\n");
|
|
goto done_err;
|
|
}
|
|
|
|
/* Init done */
|
|
curr_mode = (frame->AddrPC.Mode == AddrModeFlat) ?
|
|
stm_32bit : stm_16bit;
|
|
|
|
/* cur_switch holds address of curr_stack's field in TEB in debuggee
|
|
* address space
|
|
*/
|
|
if (NtQueryInformationThread(hThread, ThreadBasicInformation, &info,
|
|
sizeof(info), NULL) != STATUS_SUCCESS)
|
|
goto done_err;
|
|
curr_switch = (unsigned long)info.TebBaseAddress + FIELD_OFFSET(TEB, cur_stack);
|
|
if (!f_read_mem(hProcess, (void*)curr_switch, &next_switch,
|
|
sizeof(next_switch), NULL))
|
|
{
|
|
WARN("Can't read TEB:cur_stack\n");
|
|
goto done_err;
|
|
}
|
|
if (curr_mode == stm_16bit)
|
|
{
|
|
if (!f_read_mem(hProcess, (void*)next_switch, &frame32,
|
|
sizeof(frame32), NULL))
|
|
{
|
|
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);
|
|
if (!f_read_mem(hProcess, (void*)f_xlat_adr(hProcess, hThread, &tmp),
|
|
&ch, sizeof(ch), NULL))
|
|
curr_switch = 0xFFFFFFFF;
|
|
frame->AddrReturn.Mode = frame->AddrStack.Mode = AddrMode1616;
|
|
}
|
|
else
|
|
{
|
|
tmp.Mode = AddrMode1616;
|
|
tmp.Segment = SELECTOROF(next_switch);
|
|
tmp.Offset = OFFSETOF(next_switch);
|
|
p = f_xlat_adr(hProcess, hThread, &tmp);
|
|
if (!f_read_mem(hProcess, (void*)p, &frame16, sizeof(frame16), NULL))
|
|
{
|
|
WARN("Bad stack frame 0x%08lx\n", p);
|
|
goto done_err;
|
|
}
|
|
curr_switch = (DWORD)frame16.frame32;
|
|
|
|
if (!f_read_mem(hProcess, (void*)curr_switch, &ch, sizeof(ch), NULL))
|
|
curr_switch = 0xFFFFFFFF;
|
|
frame->AddrReturn.Mode = frame->AddrStack.Mode = AddrModeFlat;
|
|
}
|
|
/* don't set up AddrStack on first call. Either the caller has set it up, or
|
|
* we will get it in the next frame
|
|
*/
|
|
}
|
|
else
|
|
{
|
|
if (frame->AddrFrame.Offset == 0) goto done_err;
|
|
if (frame->AddrFrame.Mode == AddrModeFlat)
|
|
{
|
|
assert(curr_mode == stm_32bit);
|
|
do_switch = curr_switch && frame->AddrFrame.Offset >= curr_switch;
|
|
}
|
|
else
|
|
{
|
|
assert(curr_mode == stm_16bit);
|
|
do_switch = OFFSETOF(curr_switch) &&
|
|
frame->AddrFrame.Segment == SELECTOROF(curr_switch) &&
|
|
frame->AddrFrame.Offset >= OFFSETOF(curr_switch);
|
|
}
|
|
|
|
if (do_switch)
|
|
{
|
|
if (curr_mode == stm_16bit)
|
|
{
|
|
if (!f_read_mem(hProcess, (void*)next_switch, &frame32,
|
|
sizeof(frame32), NULL))
|
|
{
|
|
WARN("Bad stack frame 0x%08lx\n", next_switch);
|
|
goto done_err;
|
|
}
|
|
|
|
frame->AddrPC.Mode = AddrModeFlat;
|
|
frame->AddrPC.Segment = 0;
|
|
frame->AddrPC.Offset = frame32.retaddr;
|
|
frame->AddrFrame.Mode = AddrModeFlat;
|
|
frame->AddrFrame.Segment = 0;
|
|
frame->AddrFrame.Offset = frame32.ebp;
|
|
|
|
frame->AddrStack.Mode = AddrModeFlat;
|
|
frame->AddrStack.Segment = 0;
|
|
frame->AddrReturn.Mode = AddrModeFlat;
|
|
frame->AddrReturn.Segment = 0;
|
|
|
|
next_switch = curr_switch;
|
|
tmp.Mode = AddrMode1616;
|
|
tmp.Segment = SELECTOROF(next_switch);
|
|
tmp.Offset = OFFSETOF(next_switch);
|
|
p = f_xlat_adr(hProcess, hThread, &tmp);
|
|
|
|
if (!f_read_mem(hProcess, (void*)p, &frame16, sizeof(frame16), NULL))
|
|
{
|
|
WARN("Bad stack frame 0x%08lx\n", p);
|
|
goto done_err;
|
|
}
|
|
curr_switch = (DWORD)frame16.frame32;
|
|
curr_mode = stm_32bit;
|
|
if (!f_read_mem(hProcess, (void*)curr_switch, &ch, sizeof(ch), NULL))
|
|
curr_switch = 0xFFFFFFFF;
|
|
}
|
|
else
|
|
{
|
|
tmp.Mode = AddrMode1616;
|
|
tmp.Segment = SELECTOROF(next_switch);
|
|
tmp.Offset = OFFSETOF(next_switch);
|
|
p = f_xlat_adr(hProcess, hThread, &tmp);
|
|
|
|
if (!f_read_mem(hProcess, (void*)p, &frame16, sizeof(frame16), NULL))
|
|
{
|
|
WARN("Bad stack frame 0x%08lx\n", p);
|
|
goto done_err;
|
|
}
|
|
|
|
TRACE("Got a 16 bit stack switch:"
|
|
"\n\tframe32: %08lx"
|
|
"\n\tedx:%08lx ecx:%08lx ebp:%08lx"
|
|
"\n\tds:%04x es:%04x fs:%04x gs:%04x"
|
|
"\n\tcall_from_ip:%08lx module_cs:%04lx relay=%08lx"
|
|
"\n\tentry_ip:%04x entry_point:%08lx"
|
|
"\n\tbp:%04x ip:%04x cs:%04x\n",
|
|
(unsigned long)frame16.frame32,
|
|
frame16.edx, frame16.ecx, frame16.ebp,
|
|
frame16.ds, frame16.es, frame16.fs, frame16.gs,
|
|
frame16.callfrom_ip, frame16.module_cs, frame16.relay,
|
|
frame16.entry_ip, frame16.entry_point,
|
|
frame16.bp, frame16.ip, frame16.cs);
|
|
|
|
|
|
frame->AddrPC.Mode = AddrMode1616;
|
|
frame->AddrPC.Segment = frame16.cs;
|
|
frame->AddrPC.Offset = frame16.ip;
|
|
|
|
frame->AddrFrame.Mode = AddrMode1616;
|
|
frame->AddrFrame.Segment = SELECTOROF(next_switch);
|
|
frame->AddrFrame.Offset = frame16.bp;
|
|
|
|
frame->AddrStack.Mode = AddrMode1616;
|
|
frame->AddrStack.Segment = SELECTOROF(next_switch);
|
|
|
|
frame->AddrReturn.Mode = AddrMode1616;
|
|
frame->AddrReturn.Segment = frame16.cs;
|
|
|
|
next_switch = curr_switch;
|
|
if (!f_read_mem(hProcess, (void*)next_switch, &frame32, sizeof(frame32),
|
|
NULL))
|
|
{
|
|
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);
|
|
|
|
if (!f_read_mem(hProcess, (void*)f_xlat_adr(hProcess, hThread, &tmp),
|
|
&ch, sizeof(ch), NULL))
|
|
curr_switch = 0xFFFFFFFF;
|
|
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,
|
|
(void*)f_xlat_adr(hProcess, hThread, &frame->AddrFrame),
|
|
&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 */
|
|
if (!f_read_mem(hProcess, (void*)frame->AddrFrame.Offset,
|
|
&frame->AddrFrame.Offset, sizeof(DWORD), NULL))
|
|
goto done_err;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (curr_mode == stm_16bit)
|
|
{
|
|
int i;
|
|
|
|
p = f_xlat_adr(hProcess, hThread, &frame->AddrFrame);
|
|
if (!f_read_mem(hProcess, (void*)(p + sizeof(WORD)), &val, sizeof(WORD), NULL))
|
|
goto done_err;
|
|
frame->AddrReturn.Offset = val;
|
|
/* get potential cs if a far call was used */
|
|
if (!f_read_mem(hProcess, (void*)(p + 2 * sizeof(WORD)),
|
|
&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;
|
|
/* we "pop" parameters as 16 bit entities... of course, this won't
|
|
* 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++)
|
|
{
|
|
f_read_mem(hProcess, (void*)(p + (2 + i) * sizeof(WORD)),
|
|
&val, sizeof(val), NULL);
|
|
frame->Params[i] = val;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!f_read_mem(hProcess,
|
|
(void*)(frame->AddrFrame.Offset + sizeof(DWORD)),
|
|
&frame->AddrReturn.Offset, sizeof(DWORD), NULL))
|
|
goto done_err;
|
|
f_read_mem(hProcess,
|
|
(void*)(frame->AddrFrame.Offset + 2 * sizeof(DWORD)),
|
|
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;
|
|
}
|