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/*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "dbghelp_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
static DWORD64 WINAPI addr_to_linear(HANDLE hProcess, HANDLE hThread, ADDRESS64* addr)
{
LDT_ENTRY le;
switch (addr->Mode)
{
case AddrMode1616:
if (GetThreadSelectorEntry(hThread, addr->Segment, &le))
return (le.HighWord.Bits.BaseHi << 24) +
(le.HighWord.Bits.BaseMid << 16) + le.BaseLow + LOWORD(addr->Offset);
break;
case AddrMode1632:
if (GetThreadSelectorEntry(hThread, addr->Segment, &le))
return (le.HighWord.Bits.BaseHi << 24) +
(le.HighWord.Bits.BaseMid << 16) + le.BaseLow + addr->Offset;
break;
case AddrModeReal:
return (DWORD)(LOWORD(addr->Segment) << 4) + addr->Offset;
case AddrModeFlat:
return addr->Offset;
default:
FIXME("Unsupported (yet) mode (%x)\n", addr->Mode);
return 0;
}
FIXME("Failed to linearize address %04x:%s (mode %x)\n",
addr->Segment, wine_dbgstr_longlong(addr->Offset), addr->Mode);
return 0;
}
static BOOL CALLBACK read_mem(HANDLE hProcess, DWORD addr, void* buffer,
DWORD size, LPDWORD nread)
{
SIZE_T r;
if (!ReadProcessMemory(hProcess, (void*)(DWORD_PTR)addr, buffer, size, &r)) return FALSE;
if (nread) *nread = r;
return TRUE;
}
static BOOL CALLBACK read_mem64(HANDLE hProcess, DWORD64 addr, void* buffer,
DWORD size, LPDWORD nread)
{
SIZE_T r;
if (!ReadProcessMemory(hProcess, (void*)(DWORD_PTR)addr, buffer, size, &r)) return FALSE;
if (nread) *nread = r;
return TRUE;
}
static inline void addr_32to64(const ADDRESS* addr32, ADDRESS64* addr64)
{
addr64->Offset = (ULONG64)addr32->Offset;
addr64->Segment = addr32->Segment;
addr64->Mode = addr32->Mode;
}
static inline void addr_64to32(const ADDRESS64* addr64, ADDRESS* addr32)
{
addr32->Offset = (ULONG)addr64->Offset;
addr32->Segment = addr64->Segment;
addr32->Mode = addr64->Mode;
}
BOOL sw_read_mem(struct cpu_stack_walk* csw, DWORD64 addr, void* ptr, DWORD sz)
{
DWORD bytes_read = 0;
if (csw->is32)
return csw->u.s32.f_read_mem(csw->hProcess, addr, ptr, sz, &bytes_read);
else
return csw->u.s64.f_read_mem(csw->hProcess, addr, ptr, sz, &bytes_read);
}
DWORD64 sw_xlat_addr(struct cpu_stack_walk* csw, ADDRESS64* addr)
{
if (addr->Mode == AddrModeFlat) return addr->Offset;
if (csw->is32)
{
ADDRESS addr32;
addr_64to32(addr, &addr32);
return csw->u.s32.f_xlat_adr(csw->hProcess, csw->hThread, &addr32);
}
else if (csw->u.s64.f_xlat_adr)
return csw->u.s64.f_xlat_adr(csw->hProcess, csw->hThread, addr);
return addr_to_linear(csw->hProcess, csw->hThread, addr);
}
void* sw_table_access(struct cpu_stack_walk* csw, DWORD64 addr)
{
if (csw->is32)
return csw->u.s32.f_tabl_acs(csw->hProcess, addr);
else
return csw->u.s64.f_tabl_acs(csw->hProcess, addr);
}
DWORD64 sw_module_base(struct cpu_stack_walk* csw, DWORD64 addr)
{
if (csw->is32)
return csw->u.s32.f_modl_bas(csw->hProcess, addr);
else
return csw->u.s64.f_modl_bas(csw->hProcess, addr);
}
/***********************************************************************
* StackWalk (DBGHELP.@)
*/
BOOL WINAPI StackWalk(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
LPSTACKFRAME frame32, PVOID ctx,
PREAD_PROCESS_MEMORY_ROUTINE f_read_mem,
PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
PTRANSLATE_ADDRESS_ROUTINE f_xlat_adr)
{
struct cpu_stack_walk csw;
STACKFRAME64 frame64;
BOOL ret;
struct cpu* cpu;
TRACE("(%d, %p, %p, %p, %p, %p, %p, %p, %p)\n",
MachineType, hProcess, hThread, frame32, ctx,
f_read_mem, FunctionTableAccessRoutine,
GetModuleBaseRoutine, f_xlat_adr);
if (!(cpu = cpu_find(MachineType)))
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
addr_32to64(&frame32->AddrPC, &frame64.AddrPC);
addr_32to64(&frame32->AddrReturn, &frame64.AddrReturn);
addr_32to64(&frame32->AddrFrame, &frame64.AddrFrame);
addr_32to64(&frame32->AddrStack, &frame64.AddrStack);
addr_32to64(&frame32->AddrBStore, &frame64.AddrBStore);
frame64.FuncTableEntry = frame32->FuncTableEntry; /* FIXME */
frame64.Far = frame32->Far;
frame64.Virtual = frame32->Virtual;
frame64.Reserved[0] = frame32->Reserved[0];
frame64.Reserved[1] = frame32->Reserved[1];
frame64.Reserved[2] = frame32->Reserved[2];
/* we don't handle KdHelp */
csw.hProcess = hProcess;
csw.hThread = hThread;
csw.is32 = TRUE;
/* sigh... MS isn't even consistent in the func prototypes */
csw.u.s32.f_read_mem = (f_read_mem) ? f_read_mem : read_mem;
csw.u.s32.f_xlat_adr = f_xlat_adr;
csw.u.s32.f_tabl_acs = (FunctionTableAccessRoutine) ? FunctionTableAccessRoutine : SymFunctionTableAccess;
csw.u.s32.f_modl_bas = (GetModuleBaseRoutine) ? GetModuleBaseRoutine : SymGetModuleBase;
if ((ret = cpu->stack_walk(&csw, &frame64, ctx)))
{
addr_64to32(&frame64.AddrPC, &frame32->AddrPC);
addr_64to32(&frame64.AddrReturn, &frame32->AddrReturn);
addr_64to32(&frame64.AddrFrame, &frame32->AddrFrame);
addr_64to32(&frame64.AddrStack, &frame32->AddrStack);
addr_64to32(&frame64.AddrBStore, &frame32->AddrBStore);
frame32->FuncTableEntry = frame64.FuncTableEntry; /* FIXME */
frame32->Params[0] = frame64.Params[0];
frame32->Params[1] = frame64.Params[1];
frame32->Params[2] = frame64.Params[2];
frame32->Params[3] = frame64.Params[3];
frame32->Far = frame64.Far;
frame32->Virtual = frame64.Virtual;
frame32->Reserved[0] = frame64.Reserved[0];
frame32->Reserved[1] = frame64.Reserved[1];
frame32->Reserved[2] = frame64.Reserved[2];
}
return ret;
}
/***********************************************************************
* StackWalk64 (DBGHELP.@)
*/
BOOL WINAPI StackWalk64(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
LPSTACKFRAME64 frame, PVOID ctx,
PREAD_PROCESS_MEMORY_ROUTINE64 f_read_mem,
PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine,
PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine,
PTRANSLATE_ADDRESS_ROUTINE64 f_xlat_adr)
{
struct cpu_stack_walk csw;
struct cpu* cpu;
TRACE("(%d, %p, %p, %p, %p, %p, %p, %p, %p)\n",
MachineType, hProcess, hThread, frame, ctx,
f_read_mem, FunctionTableAccessRoutine,
GetModuleBaseRoutine, f_xlat_adr);
if (!(cpu = cpu_find(MachineType)))
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
csw.hProcess = hProcess;
csw.hThread = hThread;
csw.is32 = FALSE;
/* sigh... MS isn't even consistent in the func prototypes */
csw.u.s64.f_read_mem = (f_read_mem) ? f_read_mem : read_mem64;
csw.u.s64.f_xlat_adr = (f_xlat_adr) ? f_xlat_adr : addr_to_linear;
csw.u.s64.f_tabl_acs = (FunctionTableAccessRoutine) ? FunctionTableAccessRoutine : SymFunctionTableAccess64;
csw.u.s64.f_modl_bas = (GetModuleBaseRoutine) ? GetModuleBaseRoutine : SymGetModuleBase64;
if (!cpu->stack_walk(&csw, frame, ctx)) return FALSE;
/* we don't handle KdHelp */
return TRUE;
}
/******************************************************************
* 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;
}