Sweden-Number/dlls/dbghelp/memory.c

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2004-04-06 00:21:27 +02:00
/*
* File memory.c - managing memory
*
* Copyright (C) 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 <assert.h>
#include "dbghelp_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
BOOL win32_read_mem(HANDLE hProcess, DWORD addr, void* buf, DWORD len)
{
return ReadProcessMemory(hProcess, (void*)addr, buf, len, NULL);
}
BOOL win32_write_mem(HANDLE hProcess, DWORD addr, void* buf, DWORD len)
{
return WriteProcessMemory(hProcess, (void*)addr, buf, len, NULL);
}
/* standard routines for reading / writing memory. Can be overriden for some
* minidump usage
*/
struct memory_access mem_access = {win32_read_mem, win32_write_mem};
/******************************************************************
* addr_to_linear
*
* converts an address into its linear value
*/
unsigned long WINAPI addr_to_linear(HANDLE hProcess, HANDLE hThread, ADDRESS* 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:%08lx (mode %x)\n",
addr->Segment, addr->Offset, addr->Mode);
return 0;
}