[CMAKE]
[reactos.git] / dll / win32 / dbghelp / memory.c
1 /*
2 * File memory.c - managing memory
3 *
4 * Copyright (C) 2004, Eric Pouech
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22
23 #include <assert.h>
24 #include "dbghelp_private.h"
25 #include "wine/debug.h"
26
27 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
28
29 /******************************************************************
30 * addr_to_linear
31 *
32 * converts an address into its linear value
33 */
34 DWORD WINAPI addr_to_linear(HANDLE hProcess, HANDLE hThread, ADDRESS* addr)
35 {
36 LDT_ENTRY le;
37
38 switch (addr->Mode)
39 {
40 case AddrMode1616:
41 if (GetThreadSelectorEntry(hThread, addr->Segment, &le))
42 return (le.HighWord.Bits.BaseHi << 24) +
43 (le.HighWord.Bits.BaseMid << 16) + le.BaseLow + LOWORD(addr->Offset);
44 break;
45 case AddrMode1632:
46 if (GetThreadSelectorEntry(hThread, addr->Segment, &le))
47 return (le.HighWord.Bits.BaseHi << 24) +
48 (le.HighWord.Bits.BaseMid << 16) + le.BaseLow + addr->Offset;
49 break;
50 case AddrModeReal:
51 return (DWORD)(LOWORD(addr->Segment) << 4) + addr->Offset;
52 case AddrModeFlat:
53 return addr->Offset;
54 default:
55 FIXME("Unsupported (yet) mode (%x)\n", addr->Mode);
56 return 0;
57 }
58 FIXME("Failed to linearize address %04x:%08x (mode %x)\n",
59 addr->Segment, addr->Offset, addr->Mode);
60 return 0;
61 }