2531 lines
79 KiB
C
2531 lines
79 KiB
C
/*
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* KERNEL32 thunks and other undocumented stuff
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*
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* Copyright 1996, 1997 Alexandre Julliard
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* Copyright 1997, 1998 Marcus Meissner
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* Copyright 1998 Ulrich Weigand
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <string.h>
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#include <sys/types.h>
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#include <stdarg.h>
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "winternl.h"
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#include "wownt32.h"
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#include "wine/winbase16.h"
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#include "wine/debug.h"
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#include "wine/library.h"
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#include "kernel16_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(thunk);
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struct ThunkDataCommon
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{
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char magic[4]; /* 00 */
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DWORD checksum; /* 04 */
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};
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struct ThunkDataLS16
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{
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struct ThunkDataCommon common; /* 00 */
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SEGPTR targetTable; /* 08 */
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DWORD firstTime; /* 0C */
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};
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struct ThunkDataLS32
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{
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struct ThunkDataCommon common; /* 00 */
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DWORD * targetTable; /* 08 */
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char lateBinding[4]; /* 0C */
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DWORD flags; /* 10 */
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DWORD reserved1; /* 14 */
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DWORD reserved2; /* 18 */
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DWORD offsetQTThunk; /* 1C */
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DWORD offsetFTProlog; /* 20 */
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};
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struct ThunkDataSL16
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{
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struct ThunkDataCommon common; /* 00 */
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DWORD flags1; /* 08 */
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DWORD reserved1; /* 0C */
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struct ThunkDataSL * fpData; /* 10 */
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SEGPTR spData; /* 14 */
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DWORD reserved2; /* 18 */
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char lateBinding[4]; /* 1C */
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DWORD flags2; /* 20 */
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DWORD reserved3; /* 20 */
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SEGPTR apiDatabase; /* 28 */
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};
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struct ThunkDataSL32
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{
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struct ThunkDataCommon common; /* 00 */
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DWORD reserved1; /* 08 */
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struct ThunkDataSL * data; /* 0C */
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char lateBinding[4]; /* 10 */
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DWORD flags; /* 14 */
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DWORD reserved2; /* 18 */
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DWORD reserved3; /* 1C */
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DWORD offsetTargetTable; /* 20 */
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};
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struct ThunkDataSL
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{
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#if 0
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This structure differs from the Win95 original,
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but this should not matter since it is strictly internal to
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the thunk handling routines in KRNL386 / KERNEL32.
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For reference, here is the Win95 layout:
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struct ThunkDataCommon common; /* 00 */
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DWORD flags1; /* 08 */
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SEGPTR apiDatabase; /* 0C */
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WORD exePtr; /* 10 */
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WORD segMBA; /* 12 */
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DWORD lenMBATotal; /* 14 */
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DWORD lenMBAUsed; /* 18 */
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DWORD flags2; /* 1C */
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char pszDll16[256]; /* 20 */
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char pszDll32[256]; /*120 */
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We do it differently since all our thunk handling is done
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by 32-bit code. Therefore we do not need to provide
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easy access to this data, especially the process target
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table database, for 16-bit code.
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#endif
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struct ThunkDataCommon common;
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DWORD flags1;
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struct SLApiDB * apiDB;
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struct SLTargetDB * targetDB;
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DWORD flags2;
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char pszDll16[256];
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char pszDll32[256];
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};
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struct SLTargetDB
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{
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struct SLTargetDB * next;
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DWORD process;
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DWORD * targetTable;
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};
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struct SLApiDB
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{
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DWORD nrArgBytes;
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DWORD errorReturnValue;
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};
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SEGPTR CALL32_CBClient_RetAddr = 0;
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SEGPTR CALL32_CBClientEx_RetAddr = 0;
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extern int call_entry_point( void *func, int nb_args, const DWORD *args );
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extern void __wine_call_from_16_thunk(void);
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extern void FT_Prolog(void);
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extern void FT_PrologPrime(void);
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extern void QT_Thunk(void);
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extern void QT_ThunkPrime(void);
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/***********************************************************************
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* *
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* Win95 internal thunks *
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* *
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***********************************************************************/
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/***********************************************************************
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* LogApiThk (KERNEL.423)
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*/
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void WINAPI LogApiThk( LPSTR func )
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{
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TRACE( "%s\n", debugstr_a(func) );
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}
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/***********************************************************************
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* LogApiThkLSF (KERNEL32.42)
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*
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* NOTE: needs to preserve all registers!
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*/
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__ASM_STDCALL_FUNC( LogApiThkLSF, 4, "ret $4" )
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/***********************************************************************
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* LogApiThkSL (KERNEL32.44)
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*
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* NOTE: needs to preserve all registers!
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*/
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__ASM_STDCALL_FUNC( LogApiThkSL, 4, "ret $4" )
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/***********************************************************************
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* LogCBThkSL (KERNEL32.47)
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*
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* NOTE: needs to preserve all registers!
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*/
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__ASM_STDCALL_FUNC( LogCBThkSL, 4, "ret $4" )
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/***********************************************************************
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* Generates a FT_Prolog call.
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*
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* 0FB6D1 movzbl edx,cl
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* 8B1495xxxxxxxx mov edx,[4*edx + targetTable]
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* 68xxxxxxxx push FT_Prolog
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* C3 lret
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*/
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static void _write_ftprolog(LPBYTE relayCode ,DWORD *targetTable) {
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LPBYTE x;
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x = relayCode;
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*x++ = 0x0f;*x++=0xb6;*x++=0xd1; /* movzbl edx,cl */
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*x++ = 0x8B;*x++=0x14;*x++=0x95;*(DWORD**)x= targetTable;
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x+=4; /* mov edx, [4*edx + targetTable] */
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*x++ = 0x68; *(void **)x = FT_Prolog;
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x+=4; /* push FT_Prolog */
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*x++ = 0xC3; /* lret */
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/* fill rest with 0xCC / int 3 */
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}
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/***********************************************************************
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* _write_qtthunk (internal)
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* Generates a QT_Thunk style call.
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*
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* 33C9 xor ecx, ecx
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* 8A4DFC mov cl , [ebp-04]
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* 8B148Dxxxxxxxx mov edx, [4*ecx + targetTable]
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* B8yyyyyyyy mov eax, QT_Thunk
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* FFE0 jmp eax
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*/
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static void _write_qtthunk(
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LPBYTE relayCode, /* [in] start of QT_Thunk stub */
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DWORD *targetTable /* [in] start of thunk (for index lookup) */
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) {
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LPBYTE x;
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x = relayCode;
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*x++ = 0x33;*x++=0xC9; /* xor ecx,ecx */
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*x++ = 0x8A;*x++=0x4D;*x++=0xFC; /* movb cl,[ebp-04] */
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*x++ = 0x8B;*x++=0x14;*x++=0x8D;*(DWORD**)x= targetTable;
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x+=4; /* mov edx, [4*ecx + targetTable */
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*x++ = 0xB8; *(void **)x = QT_Thunk;
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x+=4; /* mov eax , QT_Thunk */
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*x++ = 0xFF; *x++ = 0xE0; /* jmp eax */
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/* should fill the rest of the 32 bytes with 0xCC */
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}
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/***********************************************************************
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* _loadthunk
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*/
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static LPVOID _loadthunk(LPCSTR module, LPCSTR func, LPCSTR module32,
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struct ThunkDataCommon *TD32, DWORD checksum)
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{
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struct ThunkDataCommon *TD16;
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HMODULE16 hmod;
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int ordinal;
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static BOOL done;
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if (!done)
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{
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LoadLibrary16( "gdi.exe" );
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LoadLibrary16( "user.exe" );
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done = TRUE;
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}
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if ((hmod = LoadLibrary16(module)) <= 32)
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{
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ERR("(%s, %s, %s): Unable to load '%s', error %d\n",
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module, func, module32, module, hmod);
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return 0;
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}
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if ( !(ordinal = NE_GetOrdinal(hmod, func))
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|| !(TD16 = MapSL((SEGPTR)NE_GetEntryPointEx(hmod, ordinal, FALSE))))
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{
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ERR("Unable to find thunk data '%s' in %s, required by %s (conflicting/incorrect DLL versions !?).\n",
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func, module, module32);
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return 0;
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}
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if (TD32 && memcmp(TD16->magic, TD32->magic, 4))
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{
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ERR("(%s, %s, %s): Bad magic %c%c%c%c (should be %c%c%c%c)\n",
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module, func, module32,
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TD16->magic[0], TD16->magic[1], TD16->magic[2], TD16->magic[3],
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TD32->magic[0], TD32->magic[1], TD32->magic[2], TD32->magic[3]);
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return 0;
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}
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if (TD32 && TD16->checksum != TD32->checksum)
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{
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ERR("(%s, %s, %s): Wrong checksum %08x (should be %08x)\n",
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module, func, module32, TD16->checksum, TD32->checksum);
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return 0;
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}
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if (!TD32 && checksum && checksum != *(LPDWORD)TD16)
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{
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ERR("(%s, %s, %s): Wrong checksum %08x (should be %08x)\n",
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module, func, module32, *(LPDWORD)TD16, checksum);
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return 0;
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}
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return TD16;
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}
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/***********************************************************************
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* GetThunkStuff (KERNEL32.53)
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*/
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LPVOID WINAPI GetThunkStuff(LPCSTR module, LPCSTR func)
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{
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return _loadthunk(module, func, "<kernel>", NULL, 0L);
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}
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/***********************************************************************
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* GetThunkBuff (KERNEL32.52)
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* Returns a pointer to ThkBuf in the 16bit library SYSTHUNK.DLL.
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*/
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LPVOID WINAPI GetThunkBuff(void)
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{
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return GetThunkStuff("SYSTHUNK.DLL", "ThkBuf");
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}
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/***********************************************************************
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* ThunkConnect32 (KERNEL32.@)
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* Connects a 32bit and a 16bit thunkbuffer.
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*/
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UINT WINAPI ThunkConnect32(
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struct ThunkDataCommon *TD, /* [in/out] thunkbuffer */
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LPSTR thunkfun16, /* [in] win16 thunkfunction */
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LPSTR module16, /* [in] name of win16 dll */
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LPSTR module32, /* [in] name of win32 dll */
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HMODULE hmod32, /* [in] hmodule of win32 dll */
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DWORD dwReason /* [in] initialisation argument */
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) {
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BOOL directionSL;
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if (!strncmp(TD->magic, "SL01", 4))
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{
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directionSL = TRUE;
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TRACE("SL01 thunk %s (%p) <- %s (%s), Reason: %d\n",
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module32, TD, module16, thunkfun16, dwReason);
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}
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else if (!strncmp(TD->magic, "LS01", 4))
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{
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directionSL = FALSE;
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TRACE("LS01 thunk %s (%p) -> %s (%s), Reason: %d\n",
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module32, TD, module16, thunkfun16, dwReason);
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}
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else
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{
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ERR("Invalid magic %c%c%c%c\n",
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TD->magic[0], TD->magic[1], TD->magic[2], TD->magic[3]);
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return 0;
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}
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switch (dwReason)
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{
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case DLL_PROCESS_ATTACH:
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{
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struct ThunkDataCommon *TD16;
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if (!(TD16 = _loadthunk(module16, thunkfun16, module32, TD, 0L)))
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return 0;
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if (directionSL)
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{
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struct ThunkDataSL32 *SL32 = (struct ThunkDataSL32 *)TD;
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struct ThunkDataSL16 *SL16 = (struct ThunkDataSL16 *)TD16;
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struct SLTargetDB *tdb;
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if (SL16->fpData == NULL)
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{
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ERR("ThunkConnect16 was not called!\n");
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return 0;
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}
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SL32->data = SL16->fpData;
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tdb = HeapAlloc(GetProcessHeap(), 0, sizeof(*tdb));
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tdb->process = GetCurrentProcessId();
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tdb->targetTable = (DWORD *)(thunkfun16 + SL32->offsetTargetTable);
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tdb->next = SL32->data->targetDB; /* FIXME: not thread-safe! */
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SL32->data->targetDB = tdb;
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TRACE("Process %08x allocated TargetDB entry for ThunkDataSL %p\n",
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GetCurrentProcessId(), SL32->data);
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}
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else
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{
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struct ThunkDataLS32 *LS32 = (struct ThunkDataLS32 *)TD;
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struct ThunkDataLS16 *LS16 = (struct ThunkDataLS16 *)TD16;
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LS32->targetTable = MapSL(LS16->targetTable);
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/* write QT_Thunk and FT_Prolog stubs */
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_write_qtthunk ((LPBYTE)TD + LS32->offsetQTThunk, LS32->targetTable);
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_write_ftprolog((LPBYTE)TD + LS32->offsetFTProlog, LS32->targetTable);
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}
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break;
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}
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case DLL_PROCESS_DETACH:
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/* FIXME: cleanup */
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break;
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}
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return 1;
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}
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/**********************************************************************
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* QT_Thunk (KERNEL32.@)
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*
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* The target address is in EDX.
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* The 16bit arguments start at ESP.
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* The number of 16bit argument bytes is EBP-ESP-0x40 (64 Byte thunksetup).
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* So the stack layout is 16bit argument bytes and then the 64 byte
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* scratch buffer.
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* The scratch buffer is used as work space by Windows' QT_Thunk
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* function.
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* As the programs unfortunately don't always provide a fixed size
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* scratch buffer (danger, stack corruption ahead !!), we simply resort
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* to copying over the whole EBP-ESP range to the 16bit stack
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* (as there's no way to safely figure out the param count
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* due to this misbehaviour of some programs).
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* [ok]
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*
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* See DDJ article 9614c for a very good description of QT_Thunk (also
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* available online !).
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*
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* FIXME: DDJ talks of certain register usage rules; I'm not sure
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* whether we cover this 100%.
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*/
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void WINAPI __regs_QT_Thunk( CONTEXT *context )
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{
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CONTEXT context16;
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DWORD argsize;
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context16 = *context;
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context16.SegFs = wine_get_fs();
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context16.SegGs = wine_get_gs();
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context16.SegCs = HIWORD(context->Edx);
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context16.Eip = LOWORD(context->Edx);
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/* point EBP to the STACK16FRAME on the stack
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* for the call_to_16 to set up the register content on calling */
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context16.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
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/*
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* used to be (problematic):
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* argsize = context->Ebp - context->Esp - 0x40;
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* due to some programs abusing the API, we better assume the full
|
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* EBP - ESP range for copying instead: */
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argsize = context->Ebp - context->Esp;
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/* ok, too much is insane; let's limit param count a bit again */
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if (argsize > 64)
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argsize = 64; /* 32 WORDs */
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WOWCallback16Ex( 0, WCB16_REGS, argsize, (void *)context->Esp, (DWORD *)&context16 );
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context->Eax = context16.Eax;
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context->Edx = context16.Edx;
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context->Ecx = context16.Ecx;
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/* make sure to update the Win32 ESP, too, in order to throw away
|
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* the number of parameters that the Win16 function
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* accepted (that it popped from the corresponding Win16 stack) */
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context->Esp += LOWORD(context16.Esp) -
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( OFFSETOF(NtCurrentTeb()->WOW32Reserved) - argsize );
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}
|
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DEFINE_REGS_ENTRYPOINT( QT_Thunk )
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|
|
|
|
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/**********************************************************************
|
|
* FT_Prolog (KERNEL32.@)
|
|
*
|
|
* The set of FT_... thunk routines is used instead of QT_Thunk,
|
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* if structures have to be converted from 32-bit to 16-bit
|
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* (change of member alignment, conversion of members).
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|
*
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* The thunk function (as created by the thunk compiler) calls
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* FT_Prolog at the beginning, to set up a stack frame and
|
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* allocate a 64 byte buffer on the stack.
|
|
* The input parameters (target address and some flags) are
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* saved for later use by FT_Thunk.
|
|
*
|
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* Input: EDX 16-bit target address (SEGPTR)
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* CX bits 0..7 target number (in target table)
|
|
* bits 8..9 some flags (unclear???)
|
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* bits 10..15 number of DWORD arguments
|
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*
|
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* Output: A new stackframe is created, and a 64 byte buffer
|
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* allocated on the stack. The layout of the stack
|
|
* on return is as follows:
|
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*
|
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* (ebp+4) return address to caller of thunk function
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* (ebp) old EBP
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* (ebp-4) saved EBX register of caller
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* (ebp-8) saved ESI register of caller
|
|
* (ebp-12) saved EDI register of caller
|
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* (ebp-16) saved ECX register, containing flags
|
|
* (ebp-20) bitmap containing parameters that are to be converted
|
|
* by FT_Thunk; it is initialized to 0 by FT_Prolog and
|
|
* filled in by the thunk code before calling FT_Thunk
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|
* (ebp-24)
|
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* ... (unclear)
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* (ebp-44)
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* (ebp-48) saved EAX register of caller (unclear, never restored???)
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|
* (ebp-52) saved EDX register, containing 16-bit thunk target
|
|
* (ebp-56)
|
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* ... (unclear)
|
|
* (ebp-64)
|
|
*
|
|
* ESP is EBP-64 after return.
|
|
*
|
|
*/
|
|
void WINAPI __regs_FT_Prolog( CONTEXT *context )
|
|
{
|
|
/* Build stack frame */
|
|
stack32_push(context, context->Ebp);
|
|
context->Ebp = context->Esp;
|
|
|
|
/* Allocate 64-byte Thunk Buffer */
|
|
context->Esp -= 64;
|
|
memset((char *)context->Esp, '\0', 64);
|
|
|
|
/* Store Flags (ECX) and Target Address (EDX) */
|
|
/* Save other registers to be restored later */
|
|
*(DWORD *)(context->Ebp - 4) = context->Ebx;
|
|
*(DWORD *)(context->Ebp - 8) = context->Esi;
|
|
*(DWORD *)(context->Ebp - 12) = context->Edi;
|
|
*(DWORD *)(context->Ebp - 16) = context->Ecx;
|
|
|
|
*(DWORD *)(context->Ebp - 48) = context->Eax;
|
|
*(DWORD *)(context->Ebp - 52) = context->Edx;
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( FT_Prolog )
|
|
|
|
/**********************************************************************
|
|
* FT_Thunk (KERNEL32.@)
|
|
*
|
|
* This routine performs the actual call to 16-bit code,
|
|
* similar to QT_Thunk. The differences are:
|
|
* - The call target is taken from the buffer created by FT_Prolog
|
|
* - Those arguments requested by the thunk code (by setting the
|
|
* corresponding bit in the bitmap at EBP-20) are converted
|
|
* from 32-bit pointers to segmented pointers (those pointers
|
|
* are guaranteed to point to structures copied to the stack
|
|
* by the thunk code, so we always use the 16-bit stack selector
|
|
* for those addresses).
|
|
*
|
|
* The bit #i of EBP-20 corresponds here to the DWORD starting at
|
|
* ESP+4 + 2*i.
|
|
*
|
|
* FIXME: It is unclear what happens if there are more than 32 WORDs
|
|
* of arguments, so that the single DWORD bitmap is no longer
|
|
* sufficient ...
|
|
*/
|
|
void WINAPI __regs_FT_Thunk( CONTEXT *context )
|
|
{
|
|
DWORD mapESPrelative = *(DWORD *)(context->Ebp - 20);
|
|
DWORD callTarget = *(DWORD *)(context->Ebp - 52);
|
|
|
|
CONTEXT context16;
|
|
DWORD i, argsize;
|
|
DWORD newstack[32];
|
|
LPBYTE oldstack;
|
|
|
|
context16 = *context;
|
|
|
|
context16.SegFs = wine_get_fs();
|
|
context16.SegGs = wine_get_gs();
|
|
context16.SegCs = HIWORD(callTarget);
|
|
context16.Eip = LOWORD(callTarget);
|
|
context16.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
|
|
|
|
argsize = context->Ebp-context->Esp-0x40;
|
|
if (argsize > sizeof(newstack)) argsize = sizeof(newstack);
|
|
oldstack = (LPBYTE)context->Esp;
|
|
|
|
memcpy( newstack, oldstack, argsize );
|
|
|
|
for (i = 0; i < 32; i++) /* NOTE: What about > 32 arguments? */
|
|
if (mapESPrelative & (1 << i))
|
|
{
|
|
SEGPTR *arg = (SEGPTR *)newstack[i];
|
|
*arg = MAKESEGPTR(SELECTOROF(NtCurrentTeb()->WOW32Reserved),
|
|
OFFSETOF(NtCurrentTeb()->WOW32Reserved) - argsize
|
|
+ (*(LPBYTE *)arg - oldstack));
|
|
}
|
|
|
|
WOWCallback16Ex( 0, WCB16_REGS, argsize, newstack, (DWORD *)&context16 );
|
|
context->Eax = context16.Eax;
|
|
context->Edx = context16.Edx;
|
|
context->Ecx = context16.Ecx;
|
|
|
|
context->Esp += LOWORD(context16.Esp) -
|
|
( OFFSETOF(NtCurrentTeb()->WOW32Reserved) - argsize );
|
|
|
|
/* Copy modified buffers back to 32-bit stack */
|
|
memcpy( oldstack, newstack, argsize );
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( FT_Thunk )
|
|
|
|
/***********************************************************************
|
|
* FT_Exit0 (KERNEL32.@)
|
|
* FT_Exit4 (KERNEL32.@)
|
|
* FT_Exit8 (KERNEL32.@)
|
|
* FT_Exit12 (KERNEL32.@)
|
|
* FT_Exit16 (KERNEL32.@)
|
|
* FT_Exit20 (KERNEL32.@)
|
|
* FT_Exit24 (KERNEL32.@)
|
|
* FT_Exit28 (KERNEL32.@)
|
|
* FT_Exit32 (KERNEL32.@)
|
|
* FT_Exit36 (KERNEL32.@)
|
|
* FT_Exit40 (KERNEL32.@)
|
|
* FT_Exit44 (KERNEL32.@)
|
|
* FT_Exit48 (KERNEL32.@)
|
|
* FT_Exit52 (KERNEL32.@)
|
|
* FT_Exit56 (KERNEL32.@)
|
|
*
|
|
* One of the FT_ExitNN functions is called at the end of the thunk code.
|
|
* It removes the stack frame created by FT_Prolog, moves the function
|
|
* return from EBX to EAX (yes, FT_Thunk did use EAX for the return
|
|
* value, but the thunk code has moved it from EAX to EBX in the
|
|
* meantime ... :-), restores the caller's EBX, ESI, and EDI registers,
|
|
* and perform a return to the CALLER of the thunk code (while removing
|
|
* the given number of arguments from the caller's stack).
|
|
*/
|
|
#define FT_EXIT_RESTORE_REGS \
|
|
"movl %ebx,%eax\n\t" \
|
|
"movl -4(%ebp),%ebx\n\t" \
|
|
"movl -8(%ebp),%esi\n\t" \
|
|
"movl -12(%ebp),%edi\n\t" \
|
|
"leave\n\t"
|
|
|
|
#define DEFINE_FT_Exit(n) \
|
|
__ASM_STDCALL_FUNC( FT_Exit ## n, 0, FT_EXIT_RESTORE_REGS "ret $" #n )
|
|
|
|
DEFINE_FT_Exit(0)
|
|
DEFINE_FT_Exit(4)
|
|
DEFINE_FT_Exit(8)
|
|
DEFINE_FT_Exit(12)
|
|
DEFINE_FT_Exit(16)
|
|
DEFINE_FT_Exit(20)
|
|
DEFINE_FT_Exit(24)
|
|
DEFINE_FT_Exit(28)
|
|
DEFINE_FT_Exit(32)
|
|
DEFINE_FT_Exit(36)
|
|
DEFINE_FT_Exit(40)
|
|
DEFINE_FT_Exit(44)
|
|
DEFINE_FT_Exit(48)
|
|
DEFINE_FT_Exit(52)
|
|
DEFINE_FT_Exit(56)
|
|
|
|
|
|
/***********************************************************************
|
|
* ThunkInitLS (KERNEL32.43)
|
|
* A thunkbuffer link routine
|
|
* The thunkbuf looks like:
|
|
*
|
|
* 00: DWORD length ? don't know exactly
|
|
* 04: SEGPTR ptr ? where does it point to?
|
|
* The pointer ptr is written into the first DWORD of 'thunk'.
|
|
* (probably correctly implemented)
|
|
* [ok probably]
|
|
* RETURNS
|
|
* segmented pointer to thunk?
|
|
*/
|
|
DWORD WINAPI ThunkInitLS(
|
|
LPDWORD thunk, /* [in] win32 thunk */
|
|
LPCSTR thkbuf, /* [in] thkbuffer name in win16 dll */
|
|
DWORD len, /* [in] thkbuffer length */
|
|
LPCSTR dll16, /* [in] name of win16 dll */
|
|
LPCSTR dll32 /* [in] name of win32 dll (FIXME: not used?) */
|
|
) {
|
|
LPDWORD addr;
|
|
|
|
if (!(addr = _loadthunk( dll16, thkbuf, dll32, NULL, len )))
|
|
return 0;
|
|
|
|
if (!addr[1])
|
|
return 0;
|
|
*thunk = addr[1];
|
|
|
|
return addr[1];
|
|
}
|
|
|
|
/***********************************************************************
|
|
* Common32ThkLS (KERNEL32.45)
|
|
*
|
|
* This is another 32->16 thunk, independent of the QT_Thunk/FT_Thunk
|
|
* style thunks. The basic difference is that the parameter conversion
|
|
* is done completely on the *16-bit* side here. Thus we do not call
|
|
* the 16-bit target directly, but call a common entry point instead.
|
|
* This entry function then calls the target according to the target
|
|
* number passed in the DI register.
|
|
*
|
|
* Input: EAX SEGPTR to the common 16-bit entry point
|
|
* CX offset in thunk table (target number * 4)
|
|
* DX error return value if execution fails (unclear???)
|
|
* EDX.HI number of DWORD parameters
|
|
*
|
|
* (Note that we need to move the thunk table offset from CX to DI !)
|
|
*
|
|
* The called 16-bit stub expects its stack to look like this:
|
|
* ...
|
|
* (esp+40) 32-bit arguments
|
|
* ...
|
|
* (esp+8) 32 byte of stack space available as buffer
|
|
* (esp) 8 byte return address for use with 0x66 lret
|
|
*
|
|
* The called 16-bit stub uses a 0x66 lret to return to 32-bit code,
|
|
* and uses the EAX register to return a DWORD return value.
|
|
* Thus we need to use a special assembly glue routine
|
|
* (CallRegisterLongProc instead of CallRegisterShortProc).
|
|
*
|
|
* Finally, we return to the caller, popping the arguments off
|
|
* the stack. The number of arguments to be popped is returned
|
|
* in the BL register by the called 16-bit routine.
|
|
*
|
|
*/
|
|
void WINAPI __regs_Common32ThkLS( CONTEXT *context )
|
|
{
|
|
CONTEXT context16;
|
|
DWORD argsize;
|
|
|
|
context16 = *context;
|
|
|
|
context16.SegFs = wine_get_fs();
|
|
context16.SegGs = wine_get_gs();
|
|
context16.Edi = LOWORD(context->Ecx);
|
|
context16.SegCs = HIWORD(context->Eax);
|
|
context16.Eip = LOWORD(context->Eax);
|
|
context16.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
|
|
|
|
argsize = HIWORD(context->Edx) * 4;
|
|
|
|
/* FIXME: hack for stupid USER32 CallbackGlueLS routine */
|
|
if (context->Edx == context->Eip)
|
|
argsize = 6 * 4;
|
|
|
|
/* Note: the first 32 bytes we copy are just garbage from the 32-bit stack, in order to reserve
|
|
* the space. It is safe to do that since the register function prefix has reserved
|
|
* a lot more space than that below context->Esp.
|
|
*/
|
|
WOWCallback16Ex( 0, WCB16_REGS, argsize + 32, (LPBYTE)context->Esp - 32, (DWORD *)&context16 );
|
|
context->Eax = context16.Eax;
|
|
|
|
/* Clean up caller's stack frame */
|
|
context->Esp += LOBYTE(context16.Ebx);
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( Common32ThkLS )
|
|
|
|
/***********************************************************************
|
|
* OT_32ThkLSF (KERNEL32.40)
|
|
*
|
|
* YET Another 32->16 thunk. The difference to Common32ThkLS is that
|
|
* argument processing is done on both the 32-bit and the 16-bit side:
|
|
* The 32-bit side prepares arguments, copying them onto the stack.
|
|
*
|
|
* When this routine is called, the first word on the stack is the
|
|
* number of argument bytes prepared by the 32-bit code, and EDX
|
|
* contains the 16-bit target address.
|
|
*
|
|
* The called 16-bit routine is another relaycode, doing further
|
|
* argument processing and then calling the real 16-bit target
|
|
* whose address is stored at [bp-04].
|
|
*
|
|
* The call proceeds using a normal CallRegisterShortProc.
|
|
* After return from the 16-bit relaycode, the arguments need
|
|
* to be copied *back* to the 32-bit stack, since the 32-bit
|
|
* relaycode processes output parameters.
|
|
*
|
|
* Note that we copy twice the number of arguments, since some of the
|
|
* 16-bit relaycodes in SYSTHUNK.DLL directly access the original
|
|
* arguments of the caller!
|
|
*
|
|
* (Note that this function seems only to be used for
|
|
* OLECLI32 -> OLECLI and OLESVR32 -> OLESVR thunking.)
|
|
*/
|
|
void WINAPI __regs_OT_32ThkLSF( CONTEXT *context )
|
|
{
|
|
CONTEXT context16;
|
|
DWORD argsize;
|
|
|
|
context16 = *context;
|
|
|
|
context16.SegFs = wine_get_fs();
|
|
context16.SegGs = wine_get_gs();
|
|
context16.SegCs = HIWORD(context->Edx);
|
|
context16.Eip = LOWORD(context->Edx);
|
|
context16.Ebp = OFFSETOF(NtCurrentTeb()->WOW32Reserved) + FIELD_OFFSET(STACK16FRAME,bp);
|
|
|
|
argsize = 2 * *(WORD *)context->Esp + 2;
|
|
|
|
WOWCallback16Ex( 0, WCB16_REGS, argsize, (void *)context->Esp, (DWORD *)&context16 );
|
|
context->Eax = context16.Eax;
|
|
context->Edx = context16.Edx;
|
|
|
|
/* Copy modified buffers back to 32-bit stack */
|
|
memcpy( (LPBYTE)context->Esp,
|
|
(LPBYTE)CURRENT_STACK16 - argsize, argsize );
|
|
|
|
context->Esp += LOWORD(context16.Esp) -
|
|
( OFFSETOF(NtCurrentTeb()->WOW32Reserved) - argsize );
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( OT_32ThkLSF )
|
|
|
|
/***********************************************************************
|
|
* ThunkInitLSF (KERNEL32.41)
|
|
* A thunk setup routine.
|
|
* Expects a pointer to a preinitialized thunkbuffer in the first argument
|
|
* looking like:
|
|
*| 00..03: unknown (pointer, check _41, _43, _46)
|
|
*| 04: EB1E jmp +0x20
|
|
*|
|
|
*| 06..23: unknown (space for replacement code, check .90)
|
|
*|
|
|
*| 24:>E800000000 call offset 29
|
|
*| 29:>58 pop eax ( target of call )
|
|
*| 2A: 2D25000000 sub eax,0x00000025 ( now points to offset 4 )
|
|
*| 2F: BAxxxxxxxx mov edx,xxxxxxxx
|
|
*| 34: 68yyyyyyyy push KERNEL32.90
|
|
*| 39: C3 ret
|
|
*|
|
|
*| 3A: EB1E jmp +0x20
|
|
*| 3E ... 59: unknown (space for replacement code?)
|
|
*| 5A: E8xxxxxxxx call <32bitoffset xxxxxxxx>
|
|
*| 5F: 5A pop edx
|
|
*| 60: 81EA25xxxxxx sub edx, 0x25xxxxxx
|
|
*| 66: 52 push edx
|
|
*| 67: 68xxxxxxxx push xxxxxxxx
|
|
*| 6C: 68yyyyyyyy push KERNEL32.89
|
|
*| 71: C3 ret
|
|
*| 72: end?
|
|
* This function checks if the code is there, and replaces the yyyyyyyy entries
|
|
* by the functionpointers.
|
|
* The thunkbuf looks like:
|
|
*
|
|
*| 00: DWORD length ? don't know exactly
|
|
*| 04: SEGPTR ptr ? where does it point to?
|
|
* The segpointer ptr is written into the first DWORD of 'thunk'.
|
|
* [ok probably]
|
|
* RETURNS
|
|
* unclear, pointer to win16 thkbuffer?
|
|
*/
|
|
LPVOID WINAPI ThunkInitLSF(
|
|
LPBYTE thunk, /* [in] win32 thunk */
|
|
LPCSTR thkbuf, /* [in] thkbuffer name in win16 dll */
|
|
DWORD len, /* [in] length of thkbuffer */
|
|
LPCSTR dll16, /* [in] name of win16 dll */
|
|
LPCSTR dll32 /* [in] name of win32 dll */
|
|
) {
|
|
LPDWORD addr,addr2;
|
|
|
|
/* FIXME: add checks for valid code ... */
|
|
/* write pointers to kernel32.89 and kernel32.90 (+ordinal base of 1) */
|
|
*(void **)(thunk+0x35) = QT_ThunkPrime;
|
|
*(void **)(thunk+0x6D) = FT_PrologPrime;
|
|
|
|
if (!(addr = _loadthunk( dll16, thkbuf, dll32, NULL, len )))
|
|
return 0;
|
|
|
|
addr2 = MapSL(addr[1]);
|
|
if (HIWORD(addr2))
|
|
*(DWORD*)thunk = (DWORD)addr2;
|
|
|
|
return addr2;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* FT_PrologPrime (KERNEL32.89)
|
|
*
|
|
* This function is called from the relay code installed by
|
|
* ThunkInitLSF. It replaces the location from where it was
|
|
* called by a standard FT_Prolog call stub (which is 'primed'
|
|
* by inserting the correct target table pointer).
|
|
* Finally, it calls that stub.
|
|
*
|
|
* Input: ECX target number + flags (passed through to FT_Prolog)
|
|
* (ESP) offset of location where target table pointer
|
|
* is stored, relative to the start of the relay code
|
|
* (ESP+4) pointer to start of relay code
|
|
* (this is where the FT_Prolog call stub gets written to)
|
|
*
|
|
* Note: The two DWORD arguments get popped off the stack.
|
|
*
|
|
*/
|
|
void WINAPI __regs_FT_PrologPrime( CONTEXT *context )
|
|
{
|
|
DWORD targetTableOffset;
|
|
LPBYTE relayCode;
|
|
|
|
/* Compensate for the fact that the Wine register relay code thought
|
|
we were being called, although we were in fact jumped to */
|
|
context->Esp -= 4;
|
|
|
|
/* Write FT_Prolog call stub */
|
|
targetTableOffset = stack32_pop(context);
|
|
relayCode = (LPBYTE)stack32_pop(context);
|
|
_write_ftprolog( relayCode, *(DWORD **)(relayCode+targetTableOffset) );
|
|
|
|
/* Jump to the call stub just created */
|
|
context->Eip = (DWORD)relayCode;
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( FT_PrologPrime )
|
|
|
|
/***********************************************************************
|
|
* QT_ThunkPrime (KERNEL32.90)
|
|
*
|
|
* This function corresponds to FT_PrologPrime, but installs a
|
|
* call stub for QT_Thunk instead.
|
|
*
|
|
* Input: (EBP-4) target number (passed through to QT_Thunk)
|
|
* EDX target table pointer location offset
|
|
* EAX start of relay code
|
|
*
|
|
*/
|
|
void WINAPI __regs_QT_ThunkPrime( CONTEXT *context )
|
|
{
|
|
DWORD targetTableOffset;
|
|
LPBYTE relayCode;
|
|
|
|
/* Compensate for the fact that the Wine register relay code thought
|
|
we were being called, although we were in fact jumped to */
|
|
context->Esp -= 4;
|
|
|
|
/* Write QT_Thunk call stub */
|
|
targetTableOffset = context->Edx;
|
|
relayCode = (LPBYTE)context->Eax;
|
|
_write_qtthunk( relayCode, *(DWORD **)(relayCode+targetTableOffset) );
|
|
|
|
/* Jump to the call stub just created */
|
|
context->Eip = (DWORD)relayCode;
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( QT_ThunkPrime )
|
|
|
|
/***********************************************************************
|
|
* ThunkInitSL (KERNEL32.46)
|
|
* Another thunkbuf link routine.
|
|
* The start of the thunkbuf looks like this:
|
|
* 00: DWORD length
|
|
* 04: SEGPTR address for thunkbuffer pointer
|
|
* [ok probably]
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
VOID WINAPI ThunkInitSL(
|
|
LPBYTE thunk, /* [in] start of thunkbuffer */
|
|
LPCSTR thkbuf, /* [in] name/ordinal of thunkbuffer in win16 dll */
|
|
DWORD len, /* [in] length of thunkbuffer */
|
|
LPCSTR dll16, /* [in] name of win16 dll containing the thkbuf */
|
|
LPCSTR dll32 /* [in] win32 dll. FIXME: strange, unused */
|
|
) {
|
|
LPDWORD addr;
|
|
|
|
if (!(addr = _loadthunk( dll16, thkbuf, dll32, NULL, len )))
|
|
return;
|
|
|
|
*(DWORD*)MapSL(addr[1]) = (DWORD)thunk;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* SSInit (KERNEL.700)
|
|
* RETURNS
|
|
* TRUE for success.
|
|
*/
|
|
BOOL WINAPI SSInit16(void)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* SSOnBigStack (KERNEL32.87)
|
|
* Check if thunking is initialized (ss selector set up etc.)
|
|
* We do that differently, so just return TRUE.
|
|
* [ok]
|
|
* RETURNS
|
|
* TRUE for success.
|
|
*/
|
|
BOOL WINAPI SSOnBigStack(void)
|
|
{
|
|
TRACE("Yes, thunking is initialized\n");
|
|
return TRUE;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* SSConfirmSmallStack (KERNEL.704)
|
|
*
|
|
* Abort if not on small stack.
|
|
*
|
|
* This must be a register routine as it has to preserve *all* registers.
|
|
*/
|
|
void WINAPI SSConfirmSmallStack( CONTEXT *context )
|
|
{
|
|
/* We are always on the small stack while in 16-bit code ... */
|
|
}
|
|
|
|
/**********************************************************************
|
|
* SSCall (KERNEL32.88)
|
|
* One of the real thunking functions. This one seems to be for 32<->32
|
|
* thunks. It should probably be capable of crossing processboundaries.
|
|
*
|
|
* And YES, I've seen nr=48 (somewhere in the Win95 32<->16 OLE coupling)
|
|
* [ok]
|
|
*
|
|
* RETURNS
|
|
* Thunked function result.
|
|
*/
|
|
DWORD WINAPIV SSCall(
|
|
DWORD nr, /* [in] number of argument bytes */
|
|
DWORD flags, /* [in] FIXME: flags ? */
|
|
FARPROC fun, /* [in] function to call */
|
|
... /* [in/out] arguments */
|
|
) {
|
|
DWORD i,ret;
|
|
DWORD *args = ((DWORD *)&fun) + 1;
|
|
|
|
TRACE("(%d,0x%08x,%p,[",nr,flags,fun);
|
|
for (i = 0; i < nr/4; i++) TRACE("0x%08x,",args[i]);
|
|
TRACE("])\n");
|
|
ret = call_entry_point( fun, nr / sizeof(DWORD), args );
|
|
TRACE(" returning %d ...\n",ret);
|
|
return ret;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* W32S_BackTo32 (KERNEL32.51)
|
|
*/
|
|
void WINAPI __regs_W32S_BackTo32( CONTEXT *context )
|
|
{
|
|
LPDWORD stack = (LPDWORD)context->Esp;
|
|
FARPROC proc = (FARPROC)context->Eip;
|
|
|
|
context->Eax = call_entry_point( proc, 10, stack + 1 );
|
|
context->Eip = stack32_pop(context);
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( W32S_BackTo32 )
|
|
|
|
/**********************************************************************
|
|
* AllocSLCallback (KERNEL32.@)
|
|
*
|
|
* Allocate a 16->32 callback.
|
|
*
|
|
* NOTES
|
|
* Win95 uses some structchains for callbacks. It allocates them
|
|
* in blocks of 100 entries, size 32 bytes each, layout:
|
|
* blockstart:
|
|
*| 0: PTR nextblockstart
|
|
*| 4: entry *first;
|
|
*| 8: WORD sel ( start points to blockstart)
|
|
*| A: WORD unknown
|
|
* 100xentry:
|
|
*| 00..17: Code
|
|
*| 18: PDB *owning_process;
|
|
*| 1C: PTR blockstart
|
|
*
|
|
* We ignore this for now. (Just a note for further developers)
|
|
* FIXME: use this method, so we don't waste selectors...
|
|
*
|
|
* Following code is then generated by AllocSLCallback. The code is 16 bit, so
|
|
* the 0x66 prefix switches from word->long registers.
|
|
*
|
|
*| 665A pop edx
|
|
*| 6668x arg2 x pushl <arg2>
|
|
*| 6652 push edx
|
|
*| EAx arg1 x jmpf <arg1>
|
|
*
|
|
* returns the startaddress of this thunk.
|
|
*
|
|
* Note, that they look very similar to the ones allocates by THUNK_Alloc.
|
|
* RETURNS
|
|
* A segmented pointer to the start of the thunk
|
|
*/
|
|
DWORD WINAPI
|
|
AllocSLCallback(
|
|
DWORD finalizer, /* [in] Finalizer function */
|
|
DWORD callback /* [in] Callback function */
|
|
) {
|
|
LPBYTE x,thunk = HeapAlloc( GetProcessHeap(), 0, 32 );
|
|
WORD sel;
|
|
|
|
x=thunk;
|
|
*x++=0x66;*x++=0x5a; /* popl edx */
|
|
*x++=0x66;*x++=0x68;*(DWORD*)x=finalizer;x+=4; /* pushl finalizer */
|
|
*x++=0x66;*x++=0x52; /* pushl edx */
|
|
*x++=0xea;*(DWORD*)x=callback;x+=4; /* jmpf callback */
|
|
|
|
*(DWORD*)(thunk+18) = GetCurrentProcessId();
|
|
|
|
sel = SELECTOR_AllocBlock( thunk, 32, WINE_LDT_FLAGS_CODE );
|
|
return (sel<<16)|0;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* FreeSLCallback (KERNEL32.@)
|
|
* Frees the specified 16->32 callback
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
void WINAPI
|
|
FreeSLCallback(
|
|
DWORD x /* [in] 16 bit callback (segmented pointer?) */
|
|
) {
|
|
FIXME("(0x%08x): stub\n",x);
|
|
}
|
|
|
|
/**********************************************************************
|
|
* AllocMappedBuffer (KERNEL32.38)
|
|
*
|
|
* This is an undocumented KERNEL32 function that
|
|
* SMapLS's a GlobalAlloc'ed buffer.
|
|
*
|
|
* RETURNS
|
|
* EDI register: pointer to buffer
|
|
*
|
|
* NOTES
|
|
* The buffer is preceded by 8 bytes:
|
|
* ...
|
|
* edi+0 buffer
|
|
* edi-4 SEGPTR to buffer
|
|
* edi-8 some magic Win95 needs for SUnMapLS
|
|
* (we use it for the memory handle)
|
|
*
|
|
* The SEGPTR is used by the caller!
|
|
*/
|
|
void WINAPI __regs_AllocMappedBuffer(
|
|
CONTEXT *context /* [in] EDI register: size of buffer to allocate */
|
|
) {
|
|
HGLOBAL handle = GlobalAlloc(0, context->Edi + 8);
|
|
DWORD *buffer = GlobalLock(handle);
|
|
DWORD ptr = 0;
|
|
|
|
if (buffer)
|
|
if (!(ptr = MapLS(buffer + 2)))
|
|
{
|
|
GlobalUnlock(handle);
|
|
GlobalFree(handle);
|
|
}
|
|
|
|
if (!ptr)
|
|
context->Eax = context->Edi = 0;
|
|
else
|
|
{
|
|
buffer[0] = (DWORD)handle;
|
|
buffer[1] = ptr;
|
|
|
|
context->Eax = ptr;
|
|
context->Edi = (DWORD)(buffer + 2);
|
|
}
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( AllocMappedBuffer )
|
|
|
|
/**********************************************************************
|
|
* FreeMappedBuffer (KERNEL32.39)
|
|
*
|
|
* Free a buffer allocated by AllocMappedBuffer
|
|
*
|
|
* RETURNS
|
|
* Nothing.
|
|
*/
|
|
void WINAPI __regs_FreeMappedBuffer(
|
|
CONTEXT *context /* [in] EDI register: pointer to buffer */
|
|
) {
|
|
if (context->Edi)
|
|
{
|
|
DWORD *buffer = (DWORD *)context->Edi - 2;
|
|
|
|
UnMapLS(buffer[1]);
|
|
|
|
GlobalUnlock((HGLOBAL)buffer[0]);
|
|
GlobalFree((HGLOBAL)buffer[0]);
|
|
}
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( FreeMappedBuffer )
|
|
|
|
/**********************************************************************
|
|
* GetTEBSelectorFS (KERNEL.475)
|
|
* Set the 16-bit %fs to the 32-bit %fs (current TEB selector)
|
|
*/
|
|
void WINAPI GetTEBSelectorFS16(void)
|
|
{
|
|
CURRENT_STACK16->fs = wine_get_fs();
|
|
}
|
|
|
|
/**********************************************************************
|
|
* IsPeFormat (KERNEL.431)
|
|
*
|
|
* Determine if a file is a PE format executable.
|
|
*
|
|
* RETURNS
|
|
* TRUE, if it is.
|
|
* FALSE if the file could not be opened or is not a PE file.
|
|
*
|
|
* NOTES
|
|
* If fn is given as NULL then the function expects hf16 to be valid.
|
|
*/
|
|
BOOL16 WINAPI IsPeFormat16(
|
|
LPSTR fn, /* [in] Filename to the executable */
|
|
HFILE16 hf16) /* [in] An open file handle */
|
|
{
|
|
BOOL ret = FALSE;
|
|
IMAGE_DOS_HEADER mzh;
|
|
OFSTRUCT ofs;
|
|
DWORD xmagic;
|
|
|
|
if (fn) hf16 = OpenFile16(fn,&ofs,OF_READ);
|
|
if (hf16 == HFILE_ERROR16) return FALSE;
|
|
_llseek16(hf16,0,SEEK_SET);
|
|
if (sizeof(mzh)!=_lread16(hf16,&mzh,sizeof(mzh))) goto done;
|
|
if (mzh.e_magic!=IMAGE_DOS_SIGNATURE) goto done;
|
|
_llseek16(hf16,mzh.e_lfanew,SEEK_SET);
|
|
if (sizeof(DWORD)!=_lread16(hf16,&xmagic,sizeof(DWORD))) goto done;
|
|
ret = (xmagic == IMAGE_NT_SIGNATURE);
|
|
done:
|
|
_lclose16(hf16);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* K32Thk1632Prolog (KERNEL32.@)
|
|
*/
|
|
void WINAPI __regs_K32Thk1632Prolog( CONTEXT *context )
|
|
{
|
|
LPBYTE code = (LPBYTE)context->Eip - 5;
|
|
|
|
/* Arrrgh! SYSTHUNK.DLL just has to re-implement another method
|
|
of 16->32 thunks instead of using one of the standard methods!
|
|
This means that SYSTHUNK.DLL itself switches to a 32-bit stack,
|
|
and does a far call to the 32-bit code segment of OLECLI32/OLESVR32.
|
|
Unfortunately, our CallTo/CallFrom mechanism is therefore completely
|
|
bypassed, which means it will crash the next time the 32-bit OLE
|
|
code thunks down again to 16-bit (this *will* happen!).
|
|
|
|
The following hack tries to recognize this situation.
|
|
This is possible since the called stubs in OLECLI32/OLESVR32 all
|
|
look exactly the same:
|
|
00 E8xxxxxxxx call K32Thk1632Prolog
|
|
05 FF55FC call [ebp-04]
|
|
08 E8xxxxxxxx call K32Thk1632Epilog
|
|
0D 66CB retf
|
|
|
|
If we recognize this situation, we try to simulate the actions
|
|
of our CallTo/CallFrom mechanism by copying the 16-bit stack
|
|
to our 32-bit stack, creating a proper STACK16FRAME and
|
|
updating cur_stack. */
|
|
|
|
if ( code[5] == 0xFF && code[6] == 0x55 && code[7] == 0xFC
|
|
&& code[13] == 0x66 && code[14] == 0xCB)
|
|
{
|
|
DWORD argSize = context->Ebp - context->Esp;
|
|
char *stack16 = (char *)context->Esp - 4;
|
|
STACK16FRAME *frame16 = (STACK16FRAME *)stack16 - 1;
|
|
STACK32FRAME *frame32 = NtCurrentTeb()->WOW32Reserved;
|
|
char *stack32 = (char *)frame32 - argSize;
|
|
WORD stackSel = SELECTOROF(frame32->frame16);
|
|
DWORD stackBase = GetSelectorBase(stackSel);
|
|
|
|
TRACE("before SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %p\n",
|
|
context->Ebp, context->Esp, NtCurrentTeb()->WOW32Reserved);
|
|
|
|
memset(frame16, '\0', sizeof(STACK16FRAME));
|
|
frame16->frame32 = frame32;
|
|
frame16->ebp = context->Ebp;
|
|
|
|
memcpy(stack32, stack16, argSize);
|
|
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR(stackSel, (DWORD)frame16 - stackBase);
|
|
|
|
context->Esp = (DWORD)stack32 + 4;
|
|
context->Ebp = context->Esp + argSize;
|
|
|
|
TRACE("after SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %p\n",
|
|
context->Ebp, context->Esp, NtCurrentTeb()->WOW32Reserved);
|
|
}
|
|
|
|
/* entry_point is never used again once the entry point has
|
|
been called. Thus we re-use it to hold the Win16Lock count */
|
|
ReleaseThunkLock(&CURRENT_STACK16->entry_point);
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( K32Thk1632Prolog )
|
|
|
|
/***********************************************************************
|
|
* K32Thk1632Epilog (KERNEL32.@)
|
|
*/
|
|
void WINAPI __regs_K32Thk1632Epilog( CONTEXT *context )
|
|
{
|
|
LPBYTE code = (LPBYTE)context->Eip - 13;
|
|
|
|
RestoreThunkLock(CURRENT_STACK16->entry_point);
|
|
|
|
/* We undo the SYSTHUNK hack if necessary. See K32Thk1632Prolog. */
|
|
|
|
if ( code[5] == 0xFF && code[6] == 0x55 && code[7] == 0xFC
|
|
&& code[13] == 0x66 && code[14] == 0xCB)
|
|
{
|
|
STACK16FRAME *frame16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
|
|
char *stack16 = (char *)(frame16 + 1);
|
|
DWORD argSize = frame16->ebp - (DWORD)stack16;
|
|
char *stack32 = (char *)frame16->frame32 - argSize;
|
|
|
|
DWORD nArgsPopped = context->Esp - (DWORD)stack32;
|
|
|
|
TRACE("before SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %p\n",
|
|
context->Ebp, context->Esp, NtCurrentTeb()->WOW32Reserved);
|
|
|
|
NtCurrentTeb()->WOW32Reserved = frame16->frame32;
|
|
|
|
context->Esp = (DWORD)stack16 + nArgsPopped;
|
|
context->Ebp = frame16->ebp;
|
|
|
|
TRACE("after SYSTHUNK hack: EBP: %08x ESP: %08x cur_stack: %p\n",
|
|
context->Ebp, context->Esp, NtCurrentTeb()->WOW32Reserved);
|
|
}
|
|
}
|
|
DEFINE_REGS_ENTRYPOINT( K32Thk1632Epilog )
|
|
|
|
/*********************************************************************
|
|
* PK16FNF [KERNEL32.91]
|
|
*
|
|
* This routine fills in the supplied 13-byte (8.3 plus terminator)
|
|
* string buffer with the 8.3 filename of a recently loaded 16-bit
|
|
* module. It is unknown exactly what modules trigger this
|
|
* mechanism or what purpose this serves. Win98 Explorer (and
|
|
* probably also Win95 with IE 4 shell integration) calls this
|
|
* several times during initialization.
|
|
*
|
|
* FIXME: find out what this really does and make it work.
|
|
*/
|
|
void WINAPI PK16FNF(LPSTR strPtr)
|
|
{
|
|
FIXME("(%p): stub\n", strPtr);
|
|
|
|
/* fill in a fake filename that'll be easy to recognize */
|
|
strcpy(strPtr, "WINESTUB.FIX");
|
|
}
|
|
|
|
/***********************************************************************
|
|
* 16->32 Flat Thunk routines:
|
|
*/
|
|
|
|
/***********************************************************************
|
|
* ThunkConnect16 (KERNEL.651)
|
|
* Connects a 32bit and a 16bit thunkbuffer.
|
|
*/
|
|
UINT WINAPI ThunkConnect16(
|
|
LPSTR module16, /* [in] name of win16 dll */
|
|
LPSTR module32, /* [in] name of win32 dll */
|
|
HINSTANCE16 hInst16, /* [in] hInst of win16 dll */
|
|
DWORD dwReason, /* [in] initialisation argument */
|
|
struct ThunkDataCommon *TD, /* [in/out] thunkbuffer */
|
|
LPSTR thunkfun32, /* [in] win32 thunkfunction */
|
|
WORD cs /* [in] CS of win16 dll */
|
|
) {
|
|
BOOL directionSL;
|
|
|
|
if (!strncmp(TD->magic, "SL01", 4))
|
|
{
|
|
directionSL = TRUE;
|
|
|
|
TRACE("SL01 thunk %s (%p) -> %s (%s), Reason: %d\n",
|
|
module16, TD, module32, thunkfun32, dwReason);
|
|
}
|
|
else if (!strncmp(TD->magic, "LS01", 4))
|
|
{
|
|
directionSL = FALSE;
|
|
|
|
TRACE("LS01 thunk %s (%p) <- %s (%s), Reason: %d\n",
|
|
module16, TD, module32, thunkfun32, dwReason);
|
|
}
|
|
else
|
|
{
|
|
ERR("Invalid magic %c%c%c%c\n",
|
|
TD->magic[0], TD->magic[1], TD->magic[2], TD->magic[3]);
|
|
return 0;
|
|
}
|
|
|
|
switch (dwReason)
|
|
{
|
|
case DLL_PROCESS_ATTACH:
|
|
if (directionSL)
|
|
{
|
|
struct ThunkDataSL16 *SL16 = (struct ThunkDataSL16 *)TD;
|
|
struct ThunkDataSL *SL = SL16->fpData;
|
|
|
|
if (SL == NULL)
|
|
{
|
|
SL = HeapAlloc(GetProcessHeap(), 0, sizeof(*SL));
|
|
|
|
SL->common = SL16->common;
|
|
SL->flags1 = SL16->flags1;
|
|
SL->flags2 = SL16->flags2;
|
|
|
|
SL->apiDB = MapSL(SL16->apiDatabase);
|
|
SL->targetDB = NULL;
|
|
|
|
lstrcpynA(SL->pszDll16, module16, 255);
|
|
lstrcpynA(SL->pszDll32, module32, 255);
|
|
|
|
/* We should create a SEGPTR to the ThunkDataSL,
|
|
but since the contents are not in the original format,
|
|
any access to this by 16-bit code would crash anyway. */
|
|
SL16->spData = 0;
|
|
SL16->fpData = SL;
|
|
}
|
|
|
|
|
|
if (SL->flags2 & 0x80000000)
|
|
{
|
|
TRACE("Preloading 32-bit library\n");
|
|
LoadLibraryA(module32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* nothing to do */
|
|
}
|
|
break;
|
|
|
|
case DLL_PROCESS_DETACH:
|
|
/* FIXME: cleanup */
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* C16ThkSL (KERNEL.630)
|
|
*/
|
|
|
|
void WINAPI C16ThkSL(CONTEXT *context)
|
|
{
|
|
LPBYTE stub = MapSL(context->Eax), x = stub;
|
|
WORD cs = wine_get_cs();
|
|
WORD ds = wine_get_ds();
|
|
|
|
/* We produce the following code:
|
|
*
|
|
* mov ax, __FLATDS
|
|
* mov es, ax
|
|
* movzx ecx, cx
|
|
* mov edx, es:[ecx + $EDX]
|
|
* push bp
|
|
* push edx
|
|
* push dx
|
|
* push edx
|
|
* call __FLATCS:__wine_call_from_16_thunk
|
|
*/
|
|
|
|
*x++ = 0xB8; *(WORD *)x = ds; x += sizeof(WORD);
|
|
*x++ = 0x8E; *x++ = 0xC0;
|
|
*x++ = 0x66; *x++ = 0x0F; *x++ = 0xB7; *x++ = 0xC9;
|
|
*x++ = 0x67; *x++ = 0x66; *x++ = 0x26; *x++ = 0x8B;
|
|
*x++ = 0x91; *(DWORD *)x = context->Edx; x += sizeof(DWORD);
|
|
|
|
*x++ = 0x55;
|
|
*x++ = 0x66; *x++ = 0x52;
|
|
*x++ = 0x52;
|
|
*x++ = 0x66; *x++ = 0x52;
|
|
*x++ = 0x66; *x++ = 0x9A;
|
|
*(void **)x = __wine_call_from_16_thunk; x += sizeof(void *);
|
|
*(WORD *)x = cs; x += sizeof(WORD);
|
|
|
|
/* Jump to the stub code just created */
|
|
context->Eip = LOWORD(context->Eax);
|
|
context->SegCs = HIWORD(context->Eax);
|
|
|
|
/* Since C16ThkSL got called by a jmp, we need to leave the
|
|
original return address on the stack */
|
|
context->Esp -= 4;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* C16ThkSL01 (KERNEL.631)
|
|
*/
|
|
|
|
void WINAPI C16ThkSL01(CONTEXT *context)
|
|
{
|
|
LPBYTE stub = MapSL(context->Eax), x = stub;
|
|
|
|
if (stub)
|
|
{
|
|
struct ThunkDataSL16 *SL16 = MapSL(context->Edx);
|
|
struct ThunkDataSL *td = SL16->fpData;
|
|
|
|
DWORD procAddress = (DWORD)GetProcAddress16(GetModuleHandle16("KERNEL"), (LPCSTR)631);
|
|
WORD cs = wine_get_cs();
|
|
|
|
if (!td)
|
|
{
|
|
ERR("ThunkConnect16 was not called!\n");
|
|
return;
|
|
}
|
|
|
|
TRACE("Creating stub for ThunkDataSL %p\n", td);
|
|
|
|
|
|
/* We produce the following code:
|
|
*
|
|
* xor eax, eax
|
|
* mov edx, $td
|
|
* call C16ThkSL01
|
|
* push bp
|
|
* push edx
|
|
* push dx
|
|
* push edx
|
|
* call __FLATCS:__wine_call_from_16_thunk
|
|
*/
|
|
|
|
*x++ = 0x66; *x++ = 0x33; *x++ = 0xC0;
|
|
*x++ = 0x66; *x++ = 0xBA; *(void **)x = td; x += sizeof(void *);
|
|
*x++ = 0x9A; *(DWORD *)x = procAddress; x += sizeof(DWORD);
|
|
|
|
*x++ = 0x55;
|
|
*x++ = 0x66; *x++ = 0x52;
|
|
*x++ = 0x52;
|
|
*x++ = 0x66; *x++ = 0x52;
|
|
*x++ = 0x66; *x++ = 0x9A;
|
|
*(void **)x = __wine_call_from_16_thunk; x += sizeof(void *);
|
|
*(WORD *)x = cs; x += sizeof(WORD);
|
|
|
|
/* Jump to the stub code just created */
|
|
context->Eip = LOWORD(context->Eax);
|
|
context->SegCs = HIWORD(context->Eax);
|
|
|
|
/* Since C16ThkSL01 got called by a jmp, we need to leave the
|
|
original return address on the stack */
|
|
context->Esp -= 4;
|
|
}
|
|
else
|
|
{
|
|
struct ThunkDataSL *td = (struct ThunkDataSL *)context->Edx;
|
|
DWORD targetNr = LOWORD(context->Ecx) / 4;
|
|
struct SLTargetDB *tdb;
|
|
|
|
TRACE("Process %08x calling target %d of ThunkDataSL %p\n",
|
|
GetCurrentProcessId(), targetNr, td);
|
|
|
|
for (tdb = td->targetDB; tdb; tdb = tdb->next)
|
|
if (tdb->process == GetCurrentProcessId())
|
|
break;
|
|
|
|
if (!tdb)
|
|
{
|
|
TRACE("Loading 32-bit library %s\n", td->pszDll32);
|
|
LoadLibraryA(td->pszDll32);
|
|
|
|
for (tdb = td->targetDB; tdb; tdb = tdb->next)
|
|
if (tdb->process == GetCurrentProcessId())
|
|
break;
|
|
}
|
|
|
|
if (tdb)
|
|
{
|
|
context->Edx = tdb->targetTable[targetNr];
|
|
|
|
TRACE("Call target is %08x\n", context->Edx);
|
|
}
|
|
else
|
|
{
|
|
WORD *stack = MapSL( MAKESEGPTR(context->SegSs, LOWORD(context->Esp)) );
|
|
context->Edx = (context->Edx & ~0xffff) | HIWORD(td->apiDB[targetNr].errorReturnValue);
|
|
context->Eax = (context->Eax & ~0xffff) | LOWORD(td->apiDB[targetNr].errorReturnValue);
|
|
context->Eip = stack[2];
|
|
context->SegCs = stack[3];
|
|
context->Esp += td->apiDB[targetNr].nrArgBytes + 4;
|
|
|
|
ERR("Process %08x did not ThunkConnect32 %s to %s\n",
|
|
GetCurrentProcessId(), td->pszDll32, td->pszDll16);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* 16<->32 Thunklet/Callback API:
|
|
*/
|
|
|
|
#include "pshpack1.h"
|
|
typedef struct _THUNKLET
|
|
{
|
|
BYTE prefix_target;
|
|
BYTE pushl_target;
|
|
DWORD target;
|
|
|
|
BYTE prefix_relay;
|
|
BYTE pushl_relay;
|
|
DWORD relay;
|
|
|
|
BYTE jmp_glue;
|
|
DWORD glue;
|
|
|
|
BYTE type;
|
|
HINSTANCE16 owner;
|
|
struct _THUNKLET *next;
|
|
} THUNKLET;
|
|
#include "poppack.h"
|
|
|
|
#define THUNKLET_TYPE_LS 1
|
|
#define THUNKLET_TYPE_SL 2
|
|
|
|
static HANDLE ThunkletHeap = 0;
|
|
static WORD ThunkletCodeSel;
|
|
static THUNKLET *ThunkletAnchor = NULL;
|
|
|
|
static FARPROC ThunkletSysthunkGlueLS = 0;
|
|
static SEGPTR ThunkletSysthunkGlueSL = 0;
|
|
|
|
static FARPROC ThunkletCallbackGlueLS = 0;
|
|
static SEGPTR ThunkletCallbackGlueSL = 0;
|
|
|
|
|
|
/* map a thunk allocated on ThunkletHeap to a 16-bit pointer */
|
|
static inline SEGPTR get_segptr( void *thunk )
|
|
{
|
|
if (!thunk) return 0;
|
|
return MAKESEGPTR( ThunkletCodeSel, (char *)thunk - (char *)ThunkletHeap );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* THUNK_Init
|
|
*/
|
|
static BOOL THUNK_Init(void)
|
|
{
|
|
LPBYTE thunk;
|
|
|
|
ThunkletHeap = HeapCreate( HEAP_CREATE_ENABLE_EXECUTE, 0x10000, 0x10000 );
|
|
if (!ThunkletHeap) return FALSE;
|
|
|
|
ThunkletCodeSel = SELECTOR_AllocBlock( ThunkletHeap, 0x10000, WINE_LDT_FLAGS_CODE );
|
|
|
|
thunk = HeapAlloc( ThunkletHeap, 0, 5 );
|
|
if (!thunk) return FALSE;
|
|
|
|
ThunkletSysthunkGlueLS = (FARPROC)thunk;
|
|
*thunk++ = 0x58; /* popl eax */
|
|
*thunk++ = 0xC3; /* ret */
|
|
|
|
ThunkletSysthunkGlueSL = get_segptr( thunk );
|
|
*thunk++ = 0x66; *thunk++ = 0x58; /* popl eax */
|
|
*thunk++ = 0xCB; /* lret */
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SetThunkletCallbackGlue (KERNEL.560)
|
|
*/
|
|
void WINAPI SetThunkletCallbackGlue16( FARPROC glueLS, SEGPTR glueSL )
|
|
{
|
|
ThunkletCallbackGlueLS = glueLS;
|
|
ThunkletCallbackGlueSL = glueSL;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* THUNK_FindThunklet
|
|
*/
|
|
static THUNKLET *THUNK_FindThunklet( DWORD target, DWORD relay,
|
|
DWORD glue, BYTE type )
|
|
{
|
|
THUNKLET *thunk;
|
|
|
|
for (thunk = ThunkletAnchor; thunk; thunk = thunk->next)
|
|
if ( thunk->type == type
|
|
&& thunk->target == target
|
|
&& thunk->relay == relay
|
|
&& ( type == THUNKLET_TYPE_LS ?
|
|
( thunk->glue == glue - (DWORD)&thunk->type )
|
|
: ( thunk->glue == glue ) ) )
|
|
return thunk;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* THUNK_AllocLSThunklet
|
|
*/
|
|
static FARPROC THUNK_AllocLSThunklet( SEGPTR target, DWORD relay,
|
|
FARPROC glue, HTASK16 owner )
|
|
{
|
|
THUNKLET *thunk = THUNK_FindThunklet( (DWORD)target, relay, (DWORD)glue,
|
|
THUNKLET_TYPE_LS );
|
|
if (!thunk)
|
|
{
|
|
TDB *pTask = GlobalLock16( owner );
|
|
|
|
if (!ThunkletHeap) THUNK_Init();
|
|
if ( !(thunk = HeapAlloc( ThunkletHeap, 0, sizeof(THUNKLET) )) )
|
|
return 0;
|
|
|
|
thunk->prefix_target = thunk->prefix_relay = 0x90;
|
|
thunk->pushl_target = thunk->pushl_relay = 0x68;
|
|
thunk->jmp_glue = 0xE9;
|
|
|
|
thunk->target = (DWORD)target;
|
|
thunk->relay = relay;
|
|
thunk->glue = (DWORD)glue - (DWORD)&thunk->type;
|
|
|
|
thunk->type = THUNKLET_TYPE_LS;
|
|
thunk->owner = pTask? pTask->hInstance : 0;
|
|
|
|
thunk->next = ThunkletAnchor;
|
|
ThunkletAnchor = thunk;
|
|
}
|
|
|
|
return (FARPROC)thunk;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* THUNK_AllocSLThunklet
|
|
*/
|
|
static SEGPTR THUNK_AllocSLThunklet( FARPROC target, DWORD relay,
|
|
SEGPTR glue, HTASK16 owner )
|
|
{
|
|
THUNKLET *thunk = THUNK_FindThunklet( (DWORD)target, relay, (DWORD)glue,
|
|
THUNKLET_TYPE_SL );
|
|
if (!thunk)
|
|
{
|
|
TDB *pTask = GlobalLock16( owner );
|
|
|
|
if (!ThunkletHeap) THUNK_Init();
|
|
if ( !(thunk = HeapAlloc( ThunkletHeap, 0, sizeof(THUNKLET) )) )
|
|
return 0;
|
|
|
|
thunk->prefix_target = thunk->prefix_relay = 0x66;
|
|
thunk->pushl_target = thunk->pushl_relay = 0x68;
|
|
thunk->jmp_glue = 0xEA;
|
|
|
|
thunk->target = (DWORD)target;
|
|
thunk->relay = relay;
|
|
thunk->glue = (DWORD)glue;
|
|
|
|
thunk->type = THUNKLET_TYPE_SL;
|
|
thunk->owner = pTask? pTask->hInstance : 0;
|
|
|
|
thunk->next = ThunkletAnchor;
|
|
ThunkletAnchor = thunk;
|
|
}
|
|
|
|
return get_segptr( thunk );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* IsLSThunklet
|
|
*/
|
|
static BOOL16 IsLSThunklet( THUNKLET *thunk )
|
|
{
|
|
return thunk->prefix_target == 0x90 && thunk->pushl_target == 0x68
|
|
&& thunk->prefix_relay == 0x90 && thunk->pushl_relay == 0x68
|
|
&& thunk->jmp_glue == 0xE9 && thunk->type == THUNKLET_TYPE_LS;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* IsSLThunklet (KERNEL.612)
|
|
*/
|
|
BOOL16 WINAPI IsSLThunklet16( THUNKLET *thunk )
|
|
{
|
|
return thunk->prefix_target == 0x66 && thunk->pushl_target == 0x68
|
|
&& thunk->prefix_relay == 0x66 && thunk->pushl_relay == 0x68
|
|
&& thunk->jmp_glue == 0xEA && thunk->type == THUNKLET_TYPE_SL;
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
* AllocLSThunkletSysthunk (KERNEL.607)
|
|
*/
|
|
FARPROC WINAPI AllocLSThunkletSysthunk16( SEGPTR target,
|
|
FARPROC relay, DWORD dummy )
|
|
{
|
|
if (!ThunkletSysthunkGlueLS) THUNK_Init();
|
|
return THUNK_AllocLSThunklet( (SEGPTR)relay, (DWORD)target,
|
|
ThunkletSysthunkGlueLS, GetCurrentTask() );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* AllocSLThunkletSysthunk (KERNEL.608)
|
|
*/
|
|
SEGPTR WINAPI AllocSLThunkletSysthunk16( FARPROC target,
|
|
SEGPTR relay, DWORD dummy )
|
|
{
|
|
if (!ThunkletSysthunkGlueSL) THUNK_Init();
|
|
return THUNK_AllocSLThunklet( (FARPROC)relay, (DWORD)target,
|
|
ThunkletSysthunkGlueSL, GetCurrentTask() );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* AllocLSThunkletCallbackEx (KERNEL.567)
|
|
*/
|
|
FARPROC WINAPI AllocLSThunkletCallbackEx16( SEGPTR target,
|
|
DWORD relay, HTASK16 task )
|
|
{
|
|
THUNKLET *thunk = MapSL( target );
|
|
if ( !thunk ) return NULL;
|
|
|
|
if ( IsSLThunklet16( thunk ) && thunk->relay == relay
|
|
&& thunk->glue == (DWORD)ThunkletCallbackGlueSL )
|
|
return (FARPROC)thunk->target;
|
|
|
|
return THUNK_AllocLSThunklet( target, relay,
|
|
ThunkletCallbackGlueLS, task );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* AllocSLThunkletCallbackEx (KERNEL.568)
|
|
*/
|
|
SEGPTR WINAPI AllocSLThunkletCallbackEx16( FARPROC target,
|
|
DWORD relay, HTASK16 task )
|
|
{
|
|
THUNKLET *thunk = (THUNKLET *)target;
|
|
if ( !thunk ) return 0;
|
|
|
|
if ( IsLSThunklet( thunk ) && thunk->relay == relay
|
|
&& thunk->glue == (DWORD)ThunkletCallbackGlueLS - (DWORD)&thunk->type )
|
|
return (SEGPTR)thunk->target;
|
|
|
|
return THUNK_AllocSLThunklet( target, relay,
|
|
ThunkletCallbackGlueSL, task );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* AllocLSThunkletCallback (KERNEL.561)
|
|
* AllocLSThunkletCallback_dup (KERNEL.606)
|
|
*/
|
|
FARPROC WINAPI AllocLSThunkletCallback16( SEGPTR target, DWORD relay )
|
|
{
|
|
return AllocLSThunkletCallbackEx16( target, relay, GetCurrentTask() );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* AllocSLThunkletCallback (KERNEL.562)
|
|
* AllocSLThunkletCallback_dup (KERNEL.605)
|
|
*/
|
|
SEGPTR WINAPI AllocSLThunkletCallback16( FARPROC target, DWORD relay )
|
|
{
|
|
return AllocSLThunkletCallbackEx16( target, relay, GetCurrentTask() );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* FindLSThunkletCallback (KERNEL.563)
|
|
* FindLSThunkletCallback_dup (KERNEL.609)
|
|
*/
|
|
FARPROC WINAPI FindLSThunkletCallback( SEGPTR target, DWORD relay )
|
|
{
|
|
THUNKLET *thunk = MapSL( target );
|
|
if ( thunk && IsSLThunklet16( thunk ) && thunk->relay == relay
|
|
&& thunk->glue == (DWORD)ThunkletCallbackGlueSL )
|
|
return (FARPROC)thunk->target;
|
|
|
|
thunk = THUNK_FindThunklet( (DWORD)target, relay,
|
|
(DWORD)ThunkletCallbackGlueLS,
|
|
THUNKLET_TYPE_LS );
|
|
return (FARPROC)thunk;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* FindSLThunkletCallback (KERNEL.564)
|
|
* FindSLThunkletCallback_dup (KERNEL.610)
|
|
*/
|
|
SEGPTR WINAPI FindSLThunkletCallback( FARPROC target, DWORD relay )
|
|
{
|
|
THUNKLET *thunk = (THUNKLET *)target;
|
|
if ( thunk && IsLSThunklet( thunk ) && thunk->relay == relay
|
|
&& thunk->glue == (DWORD)ThunkletCallbackGlueLS - (DWORD)&thunk->type )
|
|
return (SEGPTR)thunk->target;
|
|
|
|
thunk = THUNK_FindThunklet( (DWORD)target, relay,
|
|
(DWORD)ThunkletCallbackGlueSL,
|
|
THUNKLET_TYPE_SL );
|
|
return get_segptr( thunk );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* FreeThunklet (KERNEL.611)
|
|
*/
|
|
BOOL16 WINAPI FreeThunklet16( DWORD unused1, DWORD unused2 )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* Callback Client API
|
|
*/
|
|
|
|
#define N_CBC_FIXED 20
|
|
#define N_CBC_VARIABLE 10
|
|
#define N_CBC_TOTAL (N_CBC_FIXED + N_CBC_VARIABLE)
|
|
|
|
static SEGPTR CBClientRelay16[ N_CBC_TOTAL ];
|
|
static FARPROC *CBClientRelay32[ N_CBC_TOTAL ];
|
|
|
|
/***********************************************************************
|
|
* RegisterCBClient (KERNEL.619)
|
|
*/
|
|
INT16 WINAPI RegisterCBClient16( INT16 wCBCId,
|
|
SEGPTR relay16, FARPROC *relay32 )
|
|
{
|
|
/* Search for free Callback ID */
|
|
if ( wCBCId == -1 )
|
|
for ( wCBCId = N_CBC_FIXED; wCBCId < N_CBC_TOTAL; wCBCId++ )
|
|
if ( !CBClientRelay16[ wCBCId ] )
|
|
break;
|
|
|
|
/* Register Callback ID */
|
|
if ( wCBCId > 0 && wCBCId < N_CBC_TOTAL )
|
|
{
|
|
CBClientRelay16[ wCBCId ] = relay16;
|
|
CBClientRelay32[ wCBCId ] = relay32;
|
|
}
|
|
else
|
|
wCBCId = 0;
|
|
|
|
return wCBCId;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* UnRegisterCBClient (KERNEL.622)
|
|
*/
|
|
INT16 WINAPI UnRegisterCBClient16( INT16 wCBCId,
|
|
SEGPTR relay16, FARPROC *relay32 )
|
|
{
|
|
if ( wCBCId >= N_CBC_FIXED && wCBCId < N_CBC_TOTAL
|
|
&& CBClientRelay16[ wCBCId ] == relay16
|
|
&& CBClientRelay32[ wCBCId ] == relay32 )
|
|
{
|
|
CBClientRelay16[ wCBCId ] = 0;
|
|
CBClientRelay32[ wCBCId ] = 0;
|
|
}
|
|
else
|
|
wCBCId = 0;
|
|
|
|
return wCBCId;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* InitCBClient (KERNEL.623)
|
|
*/
|
|
void WINAPI InitCBClient16( FARPROC glueLS )
|
|
{
|
|
HMODULE16 kernel = GetModuleHandle16( "KERNEL" );
|
|
SEGPTR glueSL = (SEGPTR)GetProcAddress16( kernel, (LPCSTR)604 );
|
|
|
|
SetThunkletCallbackGlue16( glueLS, glueSL );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* CBClientGlueSL (KERNEL.604)
|
|
*/
|
|
void WINAPI CBClientGlueSL( CONTEXT *context )
|
|
{
|
|
/* Create stack frame */
|
|
SEGPTR stackSeg = stack16_push( 12 );
|
|
LPWORD stackLin = MapSL( stackSeg );
|
|
SEGPTR glue, *glueTab;
|
|
|
|
stackLin[3] = (WORD)context->Ebp;
|
|
stackLin[2] = (WORD)context->Esi;
|
|
stackLin[1] = (WORD)context->Edi;
|
|
stackLin[0] = (WORD)context->SegDs;
|
|
|
|
context->Ebp = OFFSETOF( stackSeg ) + 6;
|
|
context->Esp = OFFSETOF( stackSeg ) - 4;
|
|
context->SegGs = 0;
|
|
|
|
/* Jump to 16-bit relay code */
|
|
glueTab = MapSL( CBClientRelay16[ stackLin[5] ] );
|
|
glue = glueTab[ stackLin[4] ];
|
|
context->SegCs = SELECTOROF( glue );
|
|
context->Eip = OFFSETOF ( glue );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* CBClientThunkSL (KERNEL.620)
|
|
*/
|
|
extern DWORD CALL32_CBClient( FARPROC proc, LPWORD args, WORD *stackLin, DWORD *esi );
|
|
void WINAPI CBClientThunkSL( CONTEXT *context )
|
|
{
|
|
/* Call 32-bit relay code */
|
|
|
|
LPWORD args = MapSL( MAKESEGPTR( context->SegSs, LOWORD(context->Ebp) ) );
|
|
FARPROC proc = CBClientRelay32[ args[2] ][ args[1] ];
|
|
|
|
/* fill temporary area for the asm code (see comments in winebuild) */
|
|
SEGPTR stack = stack16_push( 12 );
|
|
LPWORD stackLin = MapSL(stack);
|
|
/* stackLin[0] and stackLin[1] reserved for the 32-bit stack ptr */
|
|
stackLin[2] = wine_get_ss();
|
|
stackLin[3] = 0;
|
|
stackLin[4] = OFFSETOF(stack) + 12;
|
|
stackLin[5] = SELECTOROF(stack);
|
|
stackLin[6] = OFFSETOF(CALL32_CBClientEx_RetAddr); /* overwrite return address */
|
|
stackLin[7] = SELECTOROF(CALL32_CBClientEx_RetAddr);
|
|
context->Eax = CALL32_CBClient( proc, args, stackLin + 4, &context->Esi );
|
|
stack16_pop( 12 );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* CBClientThunkSLEx (KERNEL.621)
|
|
*/
|
|
extern DWORD CALL32_CBClientEx( FARPROC proc, LPWORD args, WORD *stackLin, DWORD *esi, INT *nArgs );
|
|
void WINAPI CBClientThunkSLEx( CONTEXT *context )
|
|
{
|
|
/* Call 32-bit relay code */
|
|
|
|
LPWORD args = MapSL( MAKESEGPTR( context->SegSs, LOWORD(context->Ebp) ) );
|
|
FARPROC proc = CBClientRelay32[ args[2] ][ args[1] ];
|
|
INT nArgs;
|
|
LPWORD stackLin;
|
|
|
|
/* fill temporary area for the asm code (see comments in winebuild) */
|
|
SEGPTR stack = stack16_push( 24 );
|
|
stackLin = MapSL(stack);
|
|
stackLin[0] = OFFSETOF(stack) + 4;
|
|
stackLin[1] = SELECTOROF(stack);
|
|
stackLin[2] = wine_get_ds();
|
|
stackLin[5] = OFFSETOF(stack) + 24;
|
|
/* stackLin[6] and stackLin[7] reserved for the 32-bit stack ptr */
|
|
stackLin[8] = wine_get_ss();
|
|
stackLin[9] = 0;
|
|
stackLin[10] = OFFSETOF(CALL32_CBClientEx_RetAddr);
|
|
stackLin[11] = SELECTOROF(CALL32_CBClientEx_RetAddr);
|
|
|
|
context->Eax = CALL32_CBClientEx( proc, args, stackLin, &context->Esi, &nArgs );
|
|
stack16_pop( 24 );
|
|
|
|
/* Restore registers saved by CBClientGlueSL */
|
|
stackLin = (LPWORD)((LPBYTE)CURRENT_STACK16 + sizeof(STACK16FRAME) - 4);
|
|
context->Ebp = (context->Ebp & ~0xffff) | stackLin[3];
|
|
context->Esi = (context->Esi & ~0xffff) | stackLin[2];
|
|
context->Edi = (context->Edi & ~0xffff) | stackLin[1];
|
|
context->SegDs = stackLin[0];
|
|
context->Esp += 16+nArgs;
|
|
|
|
/* Return to caller of CBClient thunklet */
|
|
context->SegCs = stackLin[9];
|
|
context->Eip = stackLin[8];
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* Get16DLLAddress (KERNEL32.@)
|
|
*
|
|
* This function is used by a Win32s DLL if it wants to call a Win16 function.
|
|
* A 16:16 segmented pointer to the function is returned.
|
|
* Written without any docu.
|
|
*/
|
|
SEGPTR WINAPI Get16DLLAddress(HMODULE16 handle, LPSTR func_name)
|
|
{
|
|
static WORD code_sel32;
|
|
FARPROC16 proc_16;
|
|
LPBYTE thunk;
|
|
|
|
if (!code_sel32)
|
|
{
|
|
if (!ThunkletHeap) THUNK_Init();
|
|
code_sel32 = SELECTOR_AllocBlock( ThunkletHeap, 0x10000,
|
|
WINE_LDT_FLAGS_CODE | WINE_LDT_FLAGS_32BIT );
|
|
if (!code_sel32) return 0;
|
|
}
|
|
if (!(thunk = HeapAlloc( ThunkletHeap, 0, 32 ))) return 0;
|
|
|
|
if (!handle) handle = GetModuleHandle16("WIN32S16");
|
|
proc_16 = GetProcAddress16(handle, func_name);
|
|
|
|
/* movl proc_16, $edx */
|
|
*thunk++ = 0xba;
|
|
*(FARPROC16 *)thunk = proc_16;
|
|
thunk += sizeof(FARPROC16);
|
|
|
|
/* jmpl QT_Thunk */
|
|
*thunk++ = 0xea;
|
|
*(void **)thunk = QT_Thunk;
|
|
thunk += sizeof(FARPROC16);
|
|
*(WORD *)thunk = wine_get_cs();
|
|
|
|
return MAKESEGPTR( code_sel32, (char *)thunk - (char *)ThunkletHeap );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetWin16DOSEnv (KERNEL32.34)
|
|
* Returns some internal value.... probably the default environment database?
|
|
*/
|
|
DWORD WINAPI GetWin16DOSEnv(void)
|
|
{
|
|
FIXME("stub, returning 0\n");
|
|
return 0;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* GetPK16SysVar (KERNEL32.92)
|
|
*/
|
|
LPVOID WINAPI GetPK16SysVar(void)
|
|
{
|
|
static BYTE PK16SysVar[128];
|
|
|
|
FIXME("()\n");
|
|
return PK16SysVar;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* CommonUnimpStub (KERNEL32.17)
|
|
*/
|
|
int WINAPI DECLSPEC_HIDDEN __regs_CommonUnimpStub( const char *name, int type )
|
|
{
|
|
FIXME("generic stub %s\n", debugstr_a(name));
|
|
|
|
switch (type)
|
|
{
|
|
case 15: return -1;
|
|
case 14: return ERROR_CALL_NOT_IMPLEMENTED;
|
|
case 13: return ERROR_NOT_SUPPORTED;
|
|
case 1: return 1;
|
|
default: return 0;
|
|
}
|
|
}
|
|
__ASM_STDCALL_FUNC( CommonUnimpStub, 0,
|
|
"pushl %ecx\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
|
|
"shrl $4,%ecx\n\t"
|
|
"andl $0xf,%ecx\n\t"
|
|
"pushl %ecx\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
|
|
"pushl %eax\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
|
|
"call " __ASM_NAME("__regs_CommonUnimpStub") __ASM_STDCALL(8) "\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset -8\n\t")
|
|
"popl %ecx\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset -4\n\t")
|
|
"andl $0xf,%ecx\n\t"
|
|
"movl (%esp),%edx\n\t"
|
|
"leal (%esp,%ecx,4),%esp\n\t"
|
|
"movl %edx,(%esp)\n\t"
|
|
"ret" )
|
|
|
|
/**********************************************************************
|
|
* HouseCleanLogicallyDeadHandles (KERNEL32.33)
|
|
*/
|
|
void WINAPI HouseCleanLogicallyDeadHandles(void)
|
|
{
|
|
/* Whatever this is supposed to do, our handles probably
|
|
don't need it :-) */
|
|
}
|
|
|
|
/**********************************************************************
|
|
* @ (KERNEL32.100)
|
|
*/
|
|
BOOL WINAPI _KERNEL32_100(HANDLE threadid,DWORD exitcode,DWORD x)
|
|
{
|
|
FIXME("(%p,%d,0x%08x): stub\n",threadid,exitcode,x);
|
|
return TRUE;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* @ (KERNEL32.99)
|
|
*
|
|
* Checks whether the clock has to be switched from daylight
|
|
* savings time to standard time or vice versa.
|
|
*
|
|
*/
|
|
DWORD WINAPI _KERNEL32_99(DWORD x)
|
|
{
|
|
FIXME("(0x%08x): stub\n",x);
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* Helper for k32 family functions
|
|
*/
|
|
static void *user32_proc_address(const char *proc_name)
|
|
{
|
|
static HMODULE hUser32;
|
|
|
|
if(!hUser32) hUser32 = LoadLibraryA("user32.dll");
|
|
return GetProcAddress(hUser32, proc_name);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* k32CharToOemBuffA (KERNEL32.11)
|
|
*/
|
|
BOOL WINAPI k32CharToOemBuffA(LPCSTR s, LPSTR d, DWORD len)
|
|
{
|
|
WCHAR *bufW;
|
|
|
|
if ((bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
|
|
{
|
|
MultiByteToWideChar( CP_ACP, 0, s, len, bufW, len );
|
|
WideCharToMultiByte( CP_OEMCP, 0, bufW, len, d, len, NULL, NULL );
|
|
HeapFree( GetProcessHeap(), 0, bufW );
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* k32CharToOemA (KERNEL32.10)
|
|
*/
|
|
BOOL WINAPI k32CharToOemA(LPCSTR s, LPSTR d)
|
|
{
|
|
if (!s || !d) return TRUE;
|
|
return k32CharToOemBuffA( s, d, strlen(s) + 1 );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* k32OemToCharBuffA (KERNEL32.13)
|
|
*/
|
|
BOOL WINAPI k32OemToCharBuffA(LPCSTR s, LPSTR d, DWORD len)
|
|
{
|
|
WCHAR *bufW;
|
|
|
|
if ((bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
|
|
{
|
|
MultiByteToWideChar( CP_OEMCP, 0, s, len, bufW, len );
|
|
WideCharToMultiByte( CP_ACP, 0, bufW, len, d, len, NULL, NULL );
|
|
HeapFree( GetProcessHeap(), 0, bufW );
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* k32OemToCharA (KERNEL32.12)
|
|
*/
|
|
BOOL WINAPI k32OemToCharA(LPCSTR s, LPSTR d)
|
|
{
|
|
return k32OemToCharBuffA( s, d, strlen(s) + 1 );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* k32LoadStringA (KERNEL32.14)
|
|
*/
|
|
INT WINAPI k32LoadStringA(HINSTANCE instance, UINT resource_id,
|
|
LPSTR buffer, INT buflen)
|
|
{
|
|
static INT (WINAPI *pLoadStringA)(HINSTANCE, UINT, LPSTR, INT);
|
|
|
|
if(!pLoadStringA) pLoadStringA = user32_proc_address("LoadStringA");
|
|
return pLoadStringA(instance, resource_id, buffer, buflen);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* k32wvsprintfA (KERNEL32.16)
|
|
*/
|
|
INT WINAPI k32wvsprintfA(LPSTR buffer, LPCSTR spec, __ms_va_list args)
|
|
{
|
|
static INT (WINAPI *pwvsprintfA)(LPSTR, LPCSTR, __ms_va_list);
|
|
|
|
if(!pwvsprintfA) pwvsprintfA = user32_proc_address("wvsprintfA");
|
|
return (*pwvsprintfA)(buffer, spec, args);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* k32wsprintfA (KERNEL32.15)
|
|
*/
|
|
INT WINAPIV k32wsprintfA(LPSTR buffer, LPCSTR spec, ...)
|
|
{
|
|
__ms_va_list args;
|
|
INT res;
|
|
|
|
__ms_va_start(args, spec);
|
|
res = k32wvsprintfA(buffer, spec, args);
|
|
__ms_va_end(args);
|
|
return res;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* Catch (KERNEL.55)
|
|
*
|
|
* Real prototype is:
|
|
* INT16 WINAPI Catch( LPCATCHBUF lpbuf );
|
|
*/
|
|
void WINAPI Catch16( LPCATCHBUF lpbuf, CONTEXT *context )
|
|
{
|
|
/* Note: we don't save the current ss, as the catch buffer is */
|
|
/* only 9 words long. Hopefully no one will have the silly */
|
|
/* idea to change the current stack before calling Throw()... */
|
|
|
|
/* Windows uses:
|
|
* lpbuf[0] = ip
|
|
* lpbuf[1] = cs
|
|
* lpbuf[2] = sp
|
|
* lpbuf[3] = bp
|
|
* lpbuf[4] = si
|
|
* lpbuf[5] = di
|
|
* lpbuf[6] = ds
|
|
* lpbuf[7] = unused
|
|
* lpbuf[8] = ss
|
|
*/
|
|
|
|
lpbuf[0] = LOWORD(context->Eip);
|
|
lpbuf[1] = context->SegCs;
|
|
/* Windows pushes 4 more words before saving sp */
|
|
lpbuf[2] = LOWORD(context->Esp) - 4 * sizeof(WORD);
|
|
lpbuf[3] = LOWORD(context->Ebp);
|
|
lpbuf[4] = LOWORD(context->Esi);
|
|
lpbuf[5] = LOWORD(context->Edi);
|
|
lpbuf[6] = context->SegDs;
|
|
lpbuf[7] = 0;
|
|
lpbuf[8] = context->SegSs;
|
|
context->Eax &= ~0xffff; /* Return 0 */
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* Throw (KERNEL.56)
|
|
*
|
|
* Real prototype is:
|
|
* INT16 WINAPI Throw( LPCATCHBUF lpbuf, INT16 retval );
|
|
*/
|
|
void WINAPI Throw16( LPCATCHBUF lpbuf, INT16 retval, CONTEXT *context )
|
|
{
|
|
STACK16FRAME *pFrame;
|
|
STACK32FRAME *frame32;
|
|
|
|
context->Eax = (context->Eax & ~0xffff) | (WORD)retval;
|
|
|
|
/* Find the frame32 corresponding to the frame16 we are jumping to */
|
|
pFrame = CURRENT_STACK16;
|
|
frame32 = pFrame->frame32;
|
|
while (frame32 && frame32->frame16)
|
|
{
|
|
if (OFFSETOF(frame32->frame16) < OFFSETOF(NtCurrentTeb()->WOW32Reserved))
|
|
break; /* Something strange is going on */
|
|
if (OFFSETOF(frame32->frame16) > lpbuf[2])
|
|
{
|
|
/* We found the right frame */
|
|
pFrame->frame32 = frame32;
|
|
break;
|
|
}
|
|
frame32 = ((STACK16FRAME *)MapSL(frame32->frame16))->frame32;
|
|
}
|
|
RtlUnwind( &pFrame->frame32->frame, NULL, NULL, 0 );
|
|
|
|
context->Eip = lpbuf[0];
|
|
context->SegCs = lpbuf[1];
|
|
context->Esp = lpbuf[2] + 4 * sizeof(WORD) - sizeof(WORD) /*extra arg*/;
|
|
context->Ebp = lpbuf[3];
|
|
context->Esi = lpbuf[4];
|
|
context->Edi = lpbuf[5];
|
|
context->SegDs = lpbuf[6];
|
|
|
|
if (lpbuf[8] != context->SegSs)
|
|
ERR("Switching stack segment with Throw() not supported; expect crash now\n" );
|
|
}
|
|
|
|
|
|
/*
|
|
* 16-bit WOW routines (in KERNEL)
|
|
*/
|
|
|
|
/**********************************************************************
|
|
* GetVDMPointer32W (KERNEL.516)
|
|
*/
|
|
DWORD WINAPI GetVDMPointer32W16( SEGPTR vp, UINT16 fMode )
|
|
{
|
|
GlobalPageLock16(GlobalHandle16(SELECTOROF(vp)));
|
|
return (DWORD)K32WOWGetVDMPointer( vp, 0, (DWORD)fMode );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* LoadLibraryEx32W (KERNEL.513)
|
|
*/
|
|
DWORD WINAPI LoadLibraryEx32W16( LPCSTR lpszLibFile, DWORD hFile, DWORD dwFlags )
|
|
{
|
|
HMODULE hModule;
|
|
DWORD mutex_count;
|
|
OFSTRUCT ofs;
|
|
const char *p;
|
|
|
|
if (!lpszLibFile)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return 0;
|
|
}
|
|
|
|
/* if the file cannot be found, call LoadLibraryExA anyway, since it might be
|
|
a builtin module. This case is handled in MODULE_LoadLibraryExA */
|
|
|
|
if ((p = strrchr( lpszLibFile, '.' )) && !strchr( p, '\\' )) /* got an extension */
|
|
{
|
|
if (OpenFile16( lpszLibFile, &ofs, OF_EXIST ) != HFILE_ERROR16)
|
|
lpszLibFile = ofs.szPathName;
|
|
}
|
|
else
|
|
{
|
|
char buffer[MAX_PATH+4];
|
|
strcpy( buffer, lpszLibFile );
|
|
strcat( buffer, ".dll" );
|
|
if (OpenFile16( buffer, &ofs, OF_EXIST ) != HFILE_ERROR16)
|
|
lpszLibFile = ofs.szPathName;
|
|
}
|
|
|
|
ReleaseThunkLock( &mutex_count );
|
|
hModule = LoadLibraryExA( lpszLibFile, (HANDLE)hFile, dwFlags );
|
|
RestoreThunkLock( mutex_count );
|
|
|
|
return (DWORD)hModule;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* GetProcAddress32W (KERNEL.515)
|
|
*/
|
|
DWORD WINAPI GetProcAddress32W16( DWORD hModule, LPCSTR lpszProc )
|
|
{
|
|
return (DWORD)GetProcAddress( (HMODULE)hModule, lpszProc );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* FreeLibrary32W (KERNEL.514)
|
|
*/
|
|
DWORD WINAPI FreeLibrary32W16( DWORD hLibModule )
|
|
{
|
|
BOOL retv;
|
|
DWORD mutex_count;
|
|
|
|
ReleaseThunkLock( &mutex_count );
|
|
retv = FreeLibrary( (HMODULE)hLibModule );
|
|
RestoreThunkLock( mutex_count );
|
|
return (DWORD)retv;
|
|
}
|
|
|
|
|
|
#define CPEX_DEST_STDCALL 0x00000000
|
|
#define CPEX_DEST_CDECL 0x80000000
|
|
|
|
/**********************************************************************
|
|
* WOW_CallProc32W
|
|
*/
|
|
static DWORD WOW_CallProc32W16( FARPROC proc32, DWORD nrofargs, DWORD *args )
|
|
{
|
|
DWORD ret;
|
|
DWORD mutex_count;
|
|
|
|
ReleaseThunkLock( &mutex_count );
|
|
if (!proc32) ret = 0;
|
|
else ret = call_entry_point( proc32, nrofargs & ~CPEX_DEST_CDECL, args );
|
|
RestoreThunkLock( mutex_count );
|
|
|
|
TRACE("returns %08x\n",ret);
|
|
return ret;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* CallProc32W (KERNEL.517)
|
|
*/
|
|
DWORD WINAPIV CallProc32W16( DWORD nrofargs, DWORD argconvmask, FARPROC proc32, VA_LIST16 valist )
|
|
{
|
|
DWORD args[32];
|
|
unsigned int i;
|
|
|
|
TRACE("(%d,%d,%p args[",nrofargs,argconvmask,proc32);
|
|
|
|
for (i=0;i<nrofargs;i++)
|
|
{
|
|
if (argconvmask & (1<<i))
|
|
{
|
|
SEGPTR ptr = VA_ARG16( valist, SEGPTR );
|
|
/* pascal convention, have to reverse the arguments order */
|
|
args[nrofargs - i - 1] = (DWORD)MapSL(ptr);
|
|
TRACE("%08x(%p),",ptr,MapSL(ptr));
|
|
}
|
|
else
|
|
{
|
|
DWORD arg = VA_ARG16( valist, DWORD );
|
|
/* pascal convention, have to reverse the arguments order */
|
|
args[nrofargs - i - 1] = arg;
|
|
TRACE("%d,", arg);
|
|
}
|
|
}
|
|
TRACE("])\n");
|
|
|
|
/* POP nrofargs DWORD arguments and 3 DWORD parameters */
|
|
stack16_pop( (3 + nrofargs) * sizeof(DWORD) );
|
|
|
|
return WOW_CallProc32W16( proc32, nrofargs, args );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* _CallProcEx32W (KERNEL.518)
|
|
*/
|
|
DWORD WINAPIV CallProcEx32W16( DWORD nrofargs, DWORD argconvmask, FARPROC proc32, VA_LIST16 valist )
|
|
{
|
|
DWORD args[32];
|
|
unsigned int i;
|
|
|
|
TRACE("(%d,%d,%p args[",nrofargs,argconvmask,proc32);
|
|
|
|
for (i=0;i<nrofargs;i++)
|
|
{
|
|
if (argconvmask & (1<<i))
|
|
{
|
|
SEGPTR ptr = VA_ARG16( valist, SEGPTR );
|
|
args[i] = (DWORD)MapSL(ptr);
|
|
TRACE("%08x(%p),",ptr,MapSL(ptr));
|
|
}
|
|
else
|
|
{
|
|
DWORD arg = VA_ARG16( valist, DWORD );
|
|
args[i] = arg;
|
|
TRACE("%d,", arg);
|
|
}
|
|
}
|
|
TRACE("])\n");
|
|
return WOW_CallProc32W16( proc32, nrofargs, args );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* WOW16Call (KERNEL.500)
|
|
*
|
|
* FIXME!!!
|
|
*
|
|
*/
|
|
DWORD WINAPIV WOW16Call(WORD x, WORD y, WORD z, VA_LIST16 args)
|
|
{
|
|
int i;
|
|
DWORD calladdr;
|
|
FIXME("(0x%04x,0x%04x,%d),calling (",x,y,z);
|
|
|
|
for (i=0;i<x/2;i++) {
|
|
WORD a = VA_ARG16(args,WORD);
|
|
FIXME("%04x ",a);
|
|
}
|
|
calladdr = VA_ARG16(args,DWORD);
|
|
stack16_pop( 3*sizeof(WORD) + x + sizeof(DWORD) );
|
|
FIXME(") calling address was 0x%08x\n",calladdr);
|
|
return 0;
|
|
}
|