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wine/dlls/kernel/wowthunk.c

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/*
* Win32 WOW Generic Thunk API
*
* Copyright 1999 Ulrich Weigand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include "wine/winbase16.h"
#include "winbase.h"
#include "winerror.h"
#include "wownt32.h"
#include "winternl.h"
#include "file.h"
#include "task.h"
#include "miscemu.h"
#include "stackframe.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(thunk);
/*
* These are the 16-bit side WOW routines. They reside in wownt16.h
* in the SDK; since we don't support Win16 source code anyway, I've
* placed them here for compilation with Wine ...
*/
DWORD WINAPI GetVDMPointer32W16(SEGPTR,UINT16);
DWORD WINAPI LoadLibraryEx32W16(LPCSTR,DWORD,DWORD);
DWORD WINAPI GetProcAddress32W16(DWORD,LPCSTR);
DWORD WINAPI FreeLibrary32W16(DWORD);
#define CPEX_DEST_STDCALL 0x00000000L
#define CPEX_DEST_CDECL 0x80000000L
DWORD WINAPI CallProcExW16(VOID);
DWORD WINAPI CallProcEx32W16(VOID);
/* thunk for 16-bit CreateThread */
struct thread_args
{
FARPROC16 proc;
DWORD param;
};
static DWORD CALLBACK start_thread16( LPVOID threadArgs )
{
struct thread_args args = *(struct thread_args *)threadArgs;
HeapFree( GetProcessHeap(), 0, threadArgs );
return K32WOWCallback16( (DWORD)args.proc, args.param );
}
/*
* 32-bit WOW routines (in WOW32, but actually forwarded to KERNEL32)
*/
/**********************************************************************
* K32WOWGetDescriptor (KERNEL32.70)
*/
BOOL WINAPI K32WOWGetDescriptor( SEGPTR segptr, LPLDT_ENTRY ldtent )
{
return GetThreadSelectorEntry( GetCurrentThread(),
segptr >> 16, ldtent );
}
/**********************************************************************
* K32WOWGetVDMPointer (KERNEL32.56)
*/
LPVOID WINAPI K32WOWGetVDMPointer( DWORD vp, DWORD dwBytes, BOOL fProtectedMode )
{
/* FIXME: add size check too */
if ( fProtectedMode )
return MapSL( vp );
else
return DOSMEM_MapRealToLinear( vp );
}
/**********************************************************************
* K32WOWGetVDMPointerFix (KERNEL32.68)
*/
LPVOID WINAPI K32WOWGetVDMPointerFix( DWORD vp, DWORD dwBytes, BOOL fProtectedMode )
{
/*
* Hmmm. According to the docu, we should call:
*
* GlobalFix16( SELECTOROF(vp) );
*
* But this is unnecessary under Wine, as we never move global
* memory segments in linear memory anyway.
*
* (I'm not so sure what we are *supposed* to do if
* fProtectedMode is TRUE, anyway ...)
*/
return K32WOWGetVDMPointer( vp, dwBytes, fProtectedMode );
}
/**********************************************************************
* K32WOWGetVDMPointerUnfix (KERNEL32.69)
*/
VOID WINAPI K32WOWGetVDMPointerUnfix( DWORD vp )
{
/*
* See above why we don't call:
*
* GlobalUnfix16( SELECTOROF(vp) );
*
*/
}
/**********************************************************************
* K32WOWGlobalAlloc16 (KERNEL32.59)
*/
WORD WINAPI K32WOWGlobalAlloc16( WORD wFlags, DWORD cb )
{
return (WORD)GlobalAlloc16( wFlags, cb );
}
/**********************************************************************
* K32WOWGlobalFree16 (KERNEL32.62)
*/
WORD WINAPI K32WOWGlobalFree16( WORD hMem )
{
return (WORD)GlobalFree16( (HGLOBAL16)hMem );
}
/**********************************************************************
* K32WOWGlobalUnlock16 (KERNEL32.61)
*/
BOOL WINAPI K32WOWGlobalUnlock16( WORD hMem )
{
return (BOOL)GlobalUnlock16( (HGLOBAL16)hMem );
}
/**********************************************************************
* K32WOWGlobalAllocLock16 (KERNEL32.63)
*/
DWORD WINAPI K32WOWGlobalAllocLock16( WORD wFlags, DWORD cb, WORD *phMem )
{
WORD hMem = K32WOWGlobalAlloc16( wFlags, cb );
if (phMem) *phMem = hMem;
return K32WOWGlobalLock16( hMem );
}
/**********************************************************************
* K32WOWGlobalLockSize16 (KERNEL32.65)
*/
DWORD WINAPI K32WOWGlobalLockSize16( WORD hMem, PDWORD pcb )
{
if ( pcb )
*pcb = GlobalSize16( (HGLOBAL16)hMem );
return K32WOWGlobalLock16( hMem );
}
/**********************************************************************
* K32WOWGlobalUnlockFree16 (KERNEL32.64)
*/
WORD WINAPI K32WOWGlobalUnlockFree16( DWORD vpMem )
{
if ( !K32WOWGlobalUnlock16( HIWORD(vpMem) ) )
return FALSE;
return K32WOWGlobalFree16( HIWORD(vpMem) );
}
/**********************************************************************
* K32WOWYield16 (KERNEL32.66)
*/
VOID WINAPI K32WOWYield16( void )
{
/*
* This does the right thing for both Win16 and Win32 tasks.
* More or less, at least :-/
*/
Yield16();
}
/**********************************************************************
* K32WOWDirectedYield16 (KERNEL32.67)
*/
VOID WINAPI K32WOWDirectedYield16( WORD htask16 )
{
/*
* Argh. Our scheduler doesn't like DirectedYield by Win32
* tasks at all. So we do hope that this routine is indeed
* only ever called by Win16 tasks that have thunked up ...
*/
DirectedYield16( (HTASK16)htask16 );
}
/***********************************************************************
* K32WOWHandle32 (KERNEL32.57)
*/
HANDLE WINAPI K32WOWHandle32( WORD handle, WOW_HANDLE_TYPE type )
{
switch ( type )
{
case WOW_TYPE_HWND:
case WOW_TYPE_HMENU:
case WOW_TYPE_HDWP:
case WOW_TYPE_HDROP:
case WOW_TYPE_HDC:
case WOW_TYPE_HFONT:
case WOW_TYPE_HRGN:
case WOW_TYPE_HBITMAP:
case WOW_TYPE_HBRUSH:
case WOW_TYPE_HPALETTE:
case WOW_TYPE_HPEN:
case WOW_TYPE_HACCEL:
return (HANDLE)(ULONG_PTR)handle;
case WOW_TYPE_HMETAFILE:
FIXME( "conversion of metafile handles not supported yet\n" );
return (HANDLE)(ULONG_PTR)handle;
case WOW_TYPE_HTASK:
return (HANDLE)TASK_GetPtr(handle)->teb->tid;
case WOW_TYPE_FULLHWND:
FIXME( "conversion of full window handles not supported yet\n" );
return (HANDLE)(ULONG_PTR)handle;
default:
ERR( "handle 0x%04x of unknown type %d\n", handle, type );
return (HANDLE)(ULONG_PTR)handle;
}
}
/***********************************************************************
* K32WOWHandle16 (KERNEL32.58)
*/
WORD WINAPI K32WOWHandle16( HANDLE handle, WOW_HANDLE_TYPE type )
{
switch ( type )
{
case WOW_TYPE_HWND:
case WOW_TYPE_HMENU:
case WOW_TYPE_HDWP:
case WOW_TYPE_HDROP:
case WOW_TYPE_HDC:
case WOW_TYPE_HFONT:
case WOW_TYPE_HRGN:
case WOW_TYPE_HBITMAP:
case WOW_TYPE_HBRUSH:
case WOW_TYPE_HPALETTE:
case WOW_TYPE_HPEN:
case WOW_TYPE_HACCEL:
case WOW_TYPE_FULLHWND:
if ( HIWORD(handle ) )
ERR( "handle %p of type %d has non-zero HIWORD\n", handle, type );
return LOWORD(handle);
case WOW_TYPE_HMETAFILE:
FIXME( "conversion of metafile handles not supported yet\n" );
return LOWORD(handle);
case WOW_TYPE_HTASK:
return THREAD_IdToTEB((DWORD)handle)->htask16;
default:
ERR( "handle %p of unknown type %d\n", handle, type );
return LOWORD(handle);
}
}
/**********************************************************************
* K32WOWCallback16Ex (KERNEL32.55)
*/
BOOL WINAPI K32WOWCallback16Ex( DWORD vpfn16, DWORD dwFlags,
DWORD cbArgs, LPVOID pArgs, LPDWORD pdwRetCode )
{
DWORD ret;
/*
* Arguments must be prepared in the correct order by the caller
* (both for PASCAL and CDECL calling convention), so we simply
* copy them to the 16-bit stack ...
*/
memcpy( (LPBYTE)CURRENT_STACK16 - cbArgs, (LPBYTE)pArgs, cbArgs );
/*
* Actually, we should take care whether the called routine cleans up
* its stack or not. Fortunately, our wine_call_to_16 core doesn't rely on
* the callee to do so; after the routine has returned, the 16-bit
* stack pointer is always reset to the position it had before.
*/
ret = wine_call_to_16( (FARPROC16)vpfn16, cbArgs );
if ( pdwRetCode )
*pdwRetCode = ret;
return TRUE; /* success */
}
/**********************************************************************
* K32WOWCallback16 (KERNEL32.54)
*/
DWORD WINAPI K32WOWCallback16( DWORD vpfn16, DWORD dwParam )
{
DWORD ret;
if ( !K32WOWCallback16Ex( vpfn16, WCB16_PASCAL,
sizeof(DWORD), &dwParam, &ret ) )
ret = 0L;
return ret;
}
/*
* 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;
DOS_FULL_NAME full_name;
DWORD mutex_count;
UNICODE_STRING libfileW;
LPCWSTR filenameW;
static const WCHAR dllW[] = {'.','D','L','L',0};
if (!lpszLibFile)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!RtlCreateUnicodeStringFromAsciiz(&libfileW, lpszLibFile))
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return 0;
}
/* if the file can not be found, call LoadLibraryExA anyway, since it might be
a buildin module. This case is handled in MODULE_LoadLibraryExA */
filenameW = libfileW.Buffer;
if ( DIR_SearchPath( NULL, filenameW, dllW, &full_name, FALSE ) )
filenameW = full_name.short_name;
ReleaseThunkLock( &mutex_count );
hModule = LoadLibraryExW( filenameW, (HANDLE)hFile, dwFlags );
RestoreThunkLock( mutex_count );
RtlFreeUnicodeString(&libfileW);
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;
}
/**********************************************************************
* WOW_CallProc32W
*/
static DWORD WOW_CallProc32W16( BOOL Ex )
{
DWORD nrofargs, argconvmask;
FARPROC proc32;
DWORD *args, ret;
DWORD mutex_count;
VA_LIST16 valist;
unsigned int i;
int aix;
ReleaseThunkLock( &mutex_count );
VA_START16( valist );
nrofargs = VA_ARG16( valist, DWORD );
argconvmask = VA_ARG16( valist, DWORD );
proc32 = VA_ARG16( valist, FARPROC );
TRACE("(%ld,%ld,%p, Ex%d args[",nrofargs,argconvmask,proc32,Ex);
args = (DWORD*)HeapAlloc( GetProcessHeap(), 0, sizeof(DWORD)*nrofargs );
if(args == NULL) proc32 = NULL; /* maybe we should WARN here? */
/* CallProcEx doesn't need its args reversed */
for (i=0;i<nrofargs;i++) {
if (Ex) {
aix = i;
} else {
aix = nrofargs - i - 1;
}
if (argconvmask & (1<<i))
{
SEGPTR ptr = VA_ARG16( valist, SEGPTR );
if (args) args[aix] = (DWORD)MapSL(ptr);
if (TRACE_ON(thunk)) DPRINTF("%08lx(%p),",ptr,MapSL(ptr));
}
else
{
DWORD arg = VA_ARG16( valist, DWORD );
if (args) args[aix] = arg;
if (TRACE_ON(thunk)) DPRINTF("%ld,", arg);
}
}
if (TRACE_ON(thunk)) DPRINTF("])\n");
VA_END16( valist );
/*
* FIXME: If ( nrofargs & CPEX_DEST_CDECL ) != 0, we should call a
* 32-bit CDECL routine ...
*/
if (!proc32) ret = 0;
else switch (nrofargs)
{
case 0: ret = proc32();
break;
case 1: ret = proc32(args[0]);
break;
case 2: ret = proc32(args[0],args[1]);
break;
case 3: ret = proc32(args[0],args[1],args[2]);
break;
case 4: ret = proc32(args[0],args[1],args[2],args[3]);
break;
case 5: ret = proc32(args[0],args[1],args[2],args[3],args[4]);
break;
case 6: ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5]);
break;
case 7: ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6]);
break;
case 8: ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7]);
break;
case 9: ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8]);
break;
case 10:ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],args[9]);
break;
case 11:ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],args[9],args[10]);
break;
case 12:ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],args[9],args[10],args[11]);
break;
case 13:ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],args[9],args[10],args[11],args[12]);
break;
case 14:ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],args[9],args[10],args[11],args[12],args[13]);
break;
case 15:ret = proc32(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8],args[9],args[10],args[11],args[12],args[13],args[14]);
break;
default:
/* FIXME: should go up to 32 arguments */
ERR("Unsupported number of arguments %ld, please report.\n",nrofargs);
ret = 0;
break;
}
/* POP nrofargs DWORD arguments and 3 DWORD parameters */
if (!Ex) stack16_pop( (3 + nrofargs) * sizeof(DWORD) );
TRACE("returns %08lx\n",ret);
HeapFree( GetProcessHeap(), 0, args );
RestoreThunkLock( mutex_count );
return ret;
}
/**********************************************************************
* CallProc32W (KERNEL.517)
*
* DWORD PASCAL CallProc32W( DWORD p1, ... , DWORD lpProcAddress,
* DWORD fAddressConvert, DWORD cParams );
*/
DWORD WINAPI CallProc32W16( void )
{
return WOW_CallProc32W16( FALSE );
}
/**********************************************************************
* _CallProcEx32W (KERNEL.518)
*
* DWORD CallProcEx32W( DWORD cParams, DWORD fAddressConvert,
* DWORD lpProcAddress, DWORD p1, ... );
*/
DWORD WINAPI CallProcEx32W16( void )
{
return WOW_CallProc32W16( TRUE );
}
/**********************************************************************
* WOW16Call (KERNEL.500)
*
* FIXME!!!
*
*/
DWORD WINAPI WOW16Call(WORD x,WORD y,WORD z)
{
int i;
DWORD calladdr;
VA_LIST16 args;
FIXME("(0x%04x,0x%04x,%d),calling (",x,y,z);
VA_START16(args);
for (i=0;i<x/2;i++) {
WORD a = VA_ARG16(args,WORD);
DPRINTF("%04x ",a);
}
calladdr = VA_ARG16(args,DWORD);
VA_END16(args);
stack16_pop( x + sizeof(DWORD) );
DPRINTF(") calling address was 0x%08lx\n",calladdr);
return 0;
}
/***********************************************************************
* CreateThread16 (KERNEL.441)
*/
HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
FARPROC16 start, SEGPTR param,
DWORD flags, LPDWORD id )
{
struct thread_args *args = HeapAlloc( GetProcessHeap(), 0, sizeof(*args) );
if (!args) return INVALID_HANDLE_VALUE;
args->proc = start;
args->param = param;
return CreateThread( sa, stack, start_thread16, args, flags, id );
}
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