990 lines
31 KiB
C
990 lines
31 KiB
C
/*
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* Win32 WOW Generic Thunk API
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*
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* Copyright 1999 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 <assert.h>
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#include <stdarg.h>
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#include "wine/winbase16.h"
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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 "wownt32.h"
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#include "excpt.h"
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#include "winreg.h"
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#include "winternl.h"
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#include "miscemu.h"
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#include "module.h"
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#include "stackframe.h"
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#include "kernel_private.h"
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#include "wine/exception.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(thunk);
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WINE_DECLARE_DEBUG_CHANNEL(relay);
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WINE_DECLARE_DEBUG_CHANNEL(snoop);
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/*
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* These are the 16-bit side WOW routines. They reside in wownt16.h
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* in the SDK; since we don't support Win16 source code anyway, I've
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* placed them here for compilation with Wine ...
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*/
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DWORD WINAPI GetVDMPointer32W16(SEGPTR,UINT16);
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DWORD WINAPI LoadLibraryEx32W16(LPCSTR,DWORD,DWORD);
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DWORD WINAPI GetProcAddress32W16(DWORD,LPCSTR);
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DWORD WINAPI FreeLibrary32W16(DWORD);
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#define CPEX_DEST_STDCALL 0x00000000L
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#define CPEX_DEST_CDECL 0x80000000L
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/* thunk for 16-bit CreateThread */
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struct thread_args
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{
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FARPROC16 proc;
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DWORD param;
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};
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static DWORD CALLBACK start_thread16( LPVOID threadArgs )
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{
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struct thread_args args = *(struct thread_args *)threadArgs;
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HeapFree( GetProcessHeap(), 0, threadArgs );
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return K32WOWCallback16( (DWORD)args.proc, args.param );
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}
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#ifdef __i386__
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/* symbols exported from relay16.s */
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extern DWORD WINAPI wine_call_to_16( FARPROC16 target, DWORD cbArgs, PEXCEPTION_HANDLER handler );
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extern void WINAPI wine_call_to_16_regs( CONTEXT86 *context, DWORD cbArgs, PEXCEPTION_HANDLER handler );
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extern void Call16_Ret_Start();
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extern void Call16_Ret_End();
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extern void CallTo16_Ret();
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extern void CALL32_CBClient_Ret();
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extern void CALL32_CBClientEx_Ret();
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extern void DPMI_PendingEventCheck();
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extern void DPMI_PendingEventCheck_Cleanup();
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extern void DPMI_PendingEventCheck_Return();
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extern DWORD CallTo16_DataSelector;
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extern SEGPTR CALL32_CBClient_RetAddr;
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extern SEGPTR CALL32_CBClientEx_RetAddr;
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extern BYTE Call16_Start;
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extern BYTE Call16_End;
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extern void RELAY16_InitDebugLists(void);
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static LONG CALLBACK vectored_handler( EXCEPTION_POINTERS *ptrs );
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static SEGPTR call16_ret_addr; /* segptr to CallTo16_Ret routine */
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static WORD dpmi_checker_selector;
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static DWORD dpmi_checker_offset_call;
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static DWORD dpmi_checker_offset_cleanup;
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static DWORD dpmi_checker_offset_return;
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/***********************************************************************
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* WOWTHUNK_Init
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*/
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BOOL WOWTHUNK_Init(void)
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{
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/* allocate the code selector for CallTo16 routines */
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WORD codesel = SELECTOR_AllocBlock( (void *)Call16_Ret_Start,
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(char *)Call16_Ret_End - (char *)Call16_Ret_Start,
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WINE_LDT_FLAGS_CODE | WINE_LDT_FLAGS_32BIT );
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if (!codesel) return FALSE;
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/* Patch the return addresses for CallTo16 routines */
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CallTo16_DataSelector = wine_get_ds();
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call16_ret_addr = MAKESEGPTR( codesel, (char*)CallTo16_Ret - (char*)Call16_Ret_Start );
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CALL32_CBClient_RetAddr =
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MAKESEGPTR( codesel, (char*)CALL32_CBClient_Ret - (char*)Call16_Ret_Start );
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CALL32_CBClientEx_RetAddr =
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MAKESEGPTR( codesel, (char*)CALL32_CBClientEx_Ret - (char*)Call16_Ret_Start );
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/* Prepare selector and offsets for DPMI event checking. */
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dpmi_checker_selector = codesel;
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dpmi_checker_offset_call =
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(char*)DPMI_PendingEventCheck - (char*)Call16_Ret_Start;
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dpmi_checker_offset_cleanup =
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(char*)DPMI_PendingEventCheck_Cleanup - (char*)Call16_Ret_Start;
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dpmi_checker_offset_return =
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(char*)DPMI_PendingEventCheck_Return - (char*)Call16_Ret_Start;
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if (TRACE_ON(relay) || TRACE_ON(snoop)) RELAY16_InitDebugLists();
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/* setup emulation of protected instructions from 32-bit code (only for Win9x versions) */
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if (GetVersion() & 0x80000000) RtlAddVectoredExceptionHandler( TRUE, vectored_handler );
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return TRUE;
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}
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/*************************************************************
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* fix_selector
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*
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* Fix a selector load that caused an exception if it's in the
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* 16-bit relay code.
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*/
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static BOOL fix_selector( CONTEXT *context )
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{
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WORD *stack;
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BYTE *instr = (BYTE *)context->Eip;
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if (instr < &Call16_Start || instr >= &Call16_End) return FALSE;
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/* skip prefixes */
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while (*instr == 0x66 || *instr == 0x67) instr++;
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switch(instr[0])
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{
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case 0x07: /* pop es */
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case 0x17: /* pop ss */
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case 0x1f: /* pop ds */
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break;
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case 0x0f: /* extended instruction */
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switch(instr[1])
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{
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case 0xa1: /* pop fs */
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case 0xa9: /* pop gs */
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break;
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default:
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return FALSE;
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}
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break;
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default:
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return FALSE;
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}
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stack = wine_ldt_get_ptr( context->SegSs, context->Esp );
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TRACE( "fixing up selector %x for pop instruction\n", *stack );
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*stack = 0;
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return TRUE;
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}
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/*************************************************************
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* insert_event_check
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*
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* Make resuming the context check for pending DPMI events
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* before the original context is restored. This is required
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* because DPMI events are asynchronous, they are blocked while
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* Wine 32-bit code is being executed and we want to prevent
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* a race when returning back to 16-bit or 32-bit DPMI context.
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*/
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static void insert_event_check( CONTEXT *context )
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{
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char *stack = wine_ldt_get_ptr( context->SegSs, context->Esp );
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/* don't do event check while in system code */
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if (wine_ldt_is_system(context->SegCs))
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return;
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if(context->SegCs == dpmi_checker_selector &&
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context->Eip >= dpmi_checker_offset_call &&
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context->Eip <= dpmi_checker_offset_cleanup)
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{
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/*
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* Nested call. Stack will be preserved.
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*/
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}
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else if(context->SegCs == dpmi_checker_selector &&
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context->Eip == dpmi_checker_offset_return)
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{
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/*
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* Nested call. We have just finished popping the fs
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* register, lets put it back into stack.
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*/
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stack -= sizeof(WORD);
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*(WORD*)stack = context->SegFs;
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context->Esp -= 2;
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}
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else
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{
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/*
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* Call is not nested.
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* Push modified registers into stack.
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* These will be popped by the assembler stub.
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*/
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stack -= sizeof(DWORD);
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*(DWORD*)stack = context->EFlags;
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stack -= sizeof(DWORD);
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*(DWORD*)stack = context->SegCs;
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stack -= sizeof(DWORD);
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*(DWORD*)stack = context->Eip;
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stack -= sizeof(WORD);
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*(WORD*)stack = context->SegFs;
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context->Esp -= 14;
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}
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/*
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* Modify the context so that we jump into assembler stub.
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* TEB access is made easier by providing the stub
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* with the correct fs register value.
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*/
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context->SegCs = dpmi_checker_selector;
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context->Eip = dpmi_checker_offset_call;
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context->SegFs = wine_get_fs();
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}
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/*************************************************************
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* call16_handler
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*
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* Handler for exceptions occurring in 16-bit code.
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*/
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static DWORD call16_handler( EXCEPTION_RECORD *record, EXCEPTION_REGISTRATION_RECORD *frame,
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CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **pdispatcher )
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{
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if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND))
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{
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/* unwinding: restore the stack pointer in the TEB, and leave the Win16 mutex */
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STACK32FRAME *frame32 = (STACK32FRAME *)((char *)frame - offsetof(STACK32FRAME,frame));
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NtCurrentTeb()->cur_stack = frame32->frame16;
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_LeaveWin16Lock();
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}
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else if (record->ExceptionCode == EXCEPTION_ACCESS_VIOLATION ||
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record->ExceptionCode == EXCEPTION_PRIV_INSTRUCTION)
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{
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if (wine_ldt_is_system(context->SegCs))
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{
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if (fix_selector( context )) return ExceptionContinueExecution;
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}
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else
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{
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SEGPTR gpHandler;
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DWORD ret = INSTR_EmulateInstruction( record, context );
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/*
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* Insert check for pending DPMI events. Note that this
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* check must be inserted after instructions have been
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* emulated because the instruction emulation requires
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* original CS:IP and the emulation may change TEB.dpmi_vif.
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*/
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if(NtCurrentTeb()->dpmi_vif)
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insert_event_check( context );
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if (ret != ExceptionContinueSearch) return ret;
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/* check for Win16 __GP handler */
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if ((gpHandler = HasGPHandler16( MAKESEGPTR( context->SegCs, context->Eip ) )))
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{
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WORD *stack = wine_ldt_get_ptr( context->SegSs, context->Esp );
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*--stack = context->SegCs;
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*--stack = context->Eip;
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if (!IS_SELECTOR_32BIT(context->SegSs))
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context->Esp = MAKELONG( LOWORD(context->Esp - 2*sizeof(WORD)),
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HIWORD(context->Esp) );
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else
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context->Esp -= 2*sizeof(WORD);
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context->SegCs = SELECTOROF( gpHandler );
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context->Eip = OFFSETOF( gpHandler );
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return ExceptionContinueExecution;
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}
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}
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}
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else if (record->ExceptionCode == EXCEPTION_VM86_STI)
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{
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insert_event_check( context );
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}
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return ExceptionContinueSearch;
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}
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/*************************************************************
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* vm86_handler
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*
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* Handler for exceptions occurring in vm86 code.
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*/
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static DWORD vm86_handler( EXCEPTION_RECORD *record, EXCEPTION_REGISTRATION_RECORD *frame,
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CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **pdispatcher )
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{
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if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND))
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return ExceptionContinueSearch;
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if (record->ExceptionCode == EXCEPTION_ACCESS_VIOLATION ||
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record->ExceptionCode == EXCEPTION_PRIV_INSTRUCTION)
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{
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return INSTR_EmulateInstruction( record, context );
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}
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return ExceptionContinueSearch;
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}
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/***********************************************************************
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* vectored_handler
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*
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* Vectored exception handler used to emulate protected instructions
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* from 32-bit code.
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*/
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static LONG CALLBACK vectored_handler( EXCEPTION_POINTERS *ptrs )
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{
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EXCEPTION_RECORD *record = ptrs->ExceptionRecord;
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CONTEXT *context = ptrs->ContextRecord;
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if (wine_ldt_is_system(context->SegCs) &&
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(record->ExceptionCode == EXCEPTION_ACCESS_VIOLATION ||
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record->ExceptionCode == EXCEPTION_PRIV_INSTRUCTION))
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{
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if (INSTR_EmulateInstruction( record, context ) == ExceptionContinueExecution)
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return EXCEPTION_CONTINUE_EXECUTION;
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}
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return EXCEPTION_CONTINUE_SEARCH;
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}
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#else /* __i386__ */
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BOOL WOWTHUNK_Init(void)
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{
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return TRUE;
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}
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#endif /* __i386__ */
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/*
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* 32-bit WOW routines (in WOW32, but actually forwarded to KERNEL32)
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*/
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/**********************************************************************
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* K32WOWGetDescriptor (KERNEL32.70)
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*/
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BOOL WINAPI K32WOWGetDescriptor( SEGPTR segptr, LPLDT_ENTRY ldtent )
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{
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return GetThreadSelectorEntry( GetCurrentThread(),
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segptr >> 16, ldtent );
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}
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/**********************************************************************
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* K32WOWGetVDMPointer (KERNEL32.56)
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*/
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LPVOID WINAPI K32WOWGetVDMPointer( DWORD vp, DWORD dwBytes, BOOL fProtectedMode )
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{
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/* FIXME: add size check too */
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if ( fProtectedMode )
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return MapSL( vp );
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else
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return DOSMEM_MapRealToLinear( vp );
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}
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/**********************************************************************
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* K32WOWGetVDMPointerFix (KERNEL32.68)
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*/
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LPVOID WINAPI K32WOWGetVDMPointerFix( DWORD vp, DWORD dwBytes, BOOL fProtectedMode )
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{
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/*
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* Hmmm. According to the docu, we should call:
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*
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* GlobalFix16( SELECTOROF(vp) );
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*
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* But this is unnecessary under Wine, as we never move global
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* memory segments in linear memory anyway.
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*
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* (I'm not so sure what we are *supposed* to do if
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* fProtectedMode is TRUE, anyway ...)
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*/
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return K32WOWGetVDMPointer( vp, dwBytes, fProtectedMode );
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}
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/**********************************************************************
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* K32WOWGetVDMPointerUnfix (KERNEL32.69)
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*/
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VOID WINAPI K32WOWGetVDMPointerUnfix( DWORD vp )
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{
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/*
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* See above why we don't call:
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*
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* GlobalUnfix16( SELECTOROF(vp) );
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*
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*/
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}
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/**********************************************************************
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* K32WOWGlobalAlloc16 (KERNEL32.59)
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*/
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WORD WINAPI K32WOWGlobalAlloc16( WORD wFlags, DWORD cb )
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{
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return (WORD)GlobalAlloc16( wFlags, cb );
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}
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/**********************************************************************
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* K32WOWGlobalFree16 (KERNEL32.62)
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*/
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WORD WINAPI K32WOWGlobalFree16( WORD hMem )
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{
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return (WORD)GlobalFree16( (HGLOBAL16)hMem );
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}
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/**********************************************************************
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* K32WOWGlobalUnlock16 (KERNEL32.61)
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*/
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BOOL WINAPI K32WOWGlobalUnlock16( WORD hMem )
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{
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return (BOOL)GlobalUnlock16( (HGLOBAL16)hMem );
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}
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/**********************************************************************
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* K32WOWGlobalAllocLock16 (KERNEL32.63)
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*/
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DWORD WINAPI K32WOWGlobalAllocLock16( WORD wFlags, DWORD cb, WORD *phMem )
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{
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WORD hMem = K32WOWGlobalAlloc16( wFlags, cb );
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if (phMem) *phMem = hMem;
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return K32WOWGlobalLock16( hMem );
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}
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/**********************************************************************
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* K32WOWGlobalLockSize16 (KERNEL32.65)
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*/
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DWORD WINAPI K32WOWGlobalLockSize16( WORD hMem, PDWORD pcb )
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{
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if ( pcb )
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*pcb = GlobalSize16( (HGLOBAL16)hMem );
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return K32WOWGlobalLock16( hMem );
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}
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/**********************************************************************
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* K32WOWGlobalUnlockFree16 (KERNEL32.64)
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*/
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WORD WINAPI K32WOWGlobalUnlockFree16( DWORD vpMem )
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{
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if ( !K32WOWGlobalUnlock16( HIWORD(vpMem) ) )
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return FALSE;
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return K32WOWGlobalFree16( HIWORD(vpMem) );
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}
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/**********************************************************************
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* K32WOWYield16 (KERNEL32.66)
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*/
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VOID WINAPI K32WOWYield16( void )
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{
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/*
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* This does the right thing for both Win16 and Win32 tasks.
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* More or less, at least :-/
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*/
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Yield16();
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}
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/**********************************************************************
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* K32WOWDirectedYield16 (KERNEL32.67)
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*/
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VOID WINAPI K32WOWDirectedYield16( WORD htask16 )
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{
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/*
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* Argh. Our scheduler doesn't like DirectedYield by Win32
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* tasks at all. So we do hope that this routine is indeed
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* only ever called by Win16 tasks that have thunked up ...
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*/
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DirectedYield16( (HTASK16)htask16 );
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}
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/***********************************************************************
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* K32WOWHandle32 (KERNEL32.57)
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*/
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HANDLE WINAPI K32WOWHandle32( WORD handle, WOW_HANDLE_TYPE type )
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{
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switch ( type )
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{
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case WOW_TYPE_HWND:
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case WOW_TYPE_HMENU:
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case WOW_TYPE_HDWP:
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case WOW_TYPE_HDROP:
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case WOW_TYPE_HDC:
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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 ((TDB *)GlobalLock16(handle))->teb->ClientId.UniqueThread;
|
|
|
|
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 TASK_GetTaskFromThread( (DWORD)handle );
|
|
|
|
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 )
|
|
{
|
|
#ifdef __i386__
|
|
/*
|
|
* 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 ...
|
|
*/
|
|
char *stack = (char *)CURRENT_STACK16 - cbArgs;
|
|
|
|
memcpy( stack, pArgs, cbArgs );
|
|
|
|
if (dwFlags & (WCB16_REGS|WCB16_REGS_LONG))
|
|
{
|
|
CONTEXT *context = (CONTEXT *)pdwRetCode;
|
|
|
|
if (TRACE_ON(relay))
|
|
{
|
|
DWORD count = cbArgs / sizeof(WORD);
|
|
WORD * wstack = (WORD *)stack;
|
|
|
|
DPRINTF("%04lx:CallTo16(func=%04lx:%04x,ds=%04lx",
|
|
GetCurrentThreadId(),
|
|
context->SegCs, LOWORD(context->Eip), context->SegDs );
|
|
while (count) DPRINTF( ",%04x", wstack[--count] );
|
|
DPRINTF(") ss:sp=%04x:%04x",
|
|
SELECTOROF(NtCurrentTeb()->cur_stack), OFFSETOF(NtCurrentTeb()->cur_stack) );
|
|
DPRINTF(" ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x bp=%04x es=%04x fs=%04x\n",
|
|
(WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
|
|
(WORD)context->Edx, (WORD)context->Esi, (WORD)context->Edi,
|
|
(WORD)context->Ebp, (WORD)context->SegEs, (WORD)context->SegFs );
|
|
SYSLEVEL_CheckNotLevel( 2 );
|
|
}
|
|
|
|
if (context->EFlags & 0x00020000) /* v86 mode */
|
|
{
|
|
EXCEPTION_REGISTRATION_RECORD frame;
|
|
frame.Handler = vm86_handler;
|
|
__wine_push_frame( &frame );
|
|
__wine_enter_vm86( context );
|
|
__wine_pop_frame( &frame );
|
|
}
|
|
else
|
|
{
|
|
/* push return address */
|
|
if (dwFlags & WCB16_REGS_LONG)
|
|
{
|
|
stack -= sizeof(DWORD);
|
|
*((DWORD *)stack) = HIWORD(call16_ret_addr);
|
|
stack -= sizeof(DWORD);
|
|
*((DWORD *)stack) = LOWORD(call16_ret_addr);
|
|
cbArgs += 2 * sizeof(DWORD);
|
|
}
|
|
else
|
|
{
|
|
stack -= sizeof(SEGPTR);
|
|
*((SEGPTR *)stack) = call16_ret_addr;
|
|
cbArgs += sizeof(SEGPTR);
|
|
}
|
|
|
|
/*
|
|
* Start call by checking for pending events.
|
|
* Note that wine_call_to_16_regs overwrites context stack
|
|
* pointer so we may modify it here without a problem.
|
|
*/
|
|
if (NtCurrentTeb()->dpmi_vif)
|
|
{
|
|
context->SegSs = wine_get_ds();
|
|
context->Esp = (DWORD)stack;
|
|
insert_event_check( context );
|
|
cbArgs += (DWORD)stack - context->Esp;
|
|
}
|
|
|
|
_EnterWin16Lock();
|
|
wine_call_to_16_regs( context, cbArgs, call16_handler );
|
|
_LeaveWin16Lock();
|
|
}
|
|
|
|
if (TRACE_ON(relay))
|
|
{
|
|
DPRINTF("%04lx:RetFrom16() ss:sp=%04x:%04x ",
|
|
GetCurrentThreadId(), SELECTOROF(NtCurrentTeb()->cur_stack),
|
|
OFFSETOF(NtCurrentTeb()->cur_stack));
|
|
DPRINTF(" ax=%04x bx=%04x cx=%04x dx=%04x bp=%04x sp=%04x\n",
|
|
(WORD)context->Eax, (WORD)context->Ebx, (WORD)context->Ecx,
|
|
(WORD)context->Edx, (WORD)context->Ebp, (WORD)context->Esp );
|
|
SYSLEVEL_CheckNotLevel( 2 );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DWORD ret;
|
|
|
|
if (TRACE_ON(relay))
|
|
{
|
|
DWORD count = cbArgs / sizeof(WORD);
|
|
WORD * wstack = (WORD *)stack;
|
|
|
|
DPRINTF("%04lx:CallTo16(func=%04x:%04x,ds=%04x",
|
|
GetCurrentThreadId(), HIWORD(vpfn16), LOWORD(vpfn16),
|
|
SELECTOROF(NtCurrentTeb()->cur_stack) );
|
|
while (count) DPRINTF( ",%04x", wstack[--count] );
|
|
DPRINTF(") ss:sp=%04x:%04x\n",
|
|
SELECTOROF(NtCurrentTeb()->cur_stack), OFFSETOF(NtCurrentTeb()->cur_stack) );
|
|
SYSLEVEL_CheckNotLevel( 2 );
|
|
}
|
|
|
|
/* push return address */
|
|
stack -= sizeof(SEGPTR);
|
|
*((SEGPTR *)stack) = call16_ret_addr;
|
|
cbArgs += sizeof(SEGPTR);
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
_EnterWin16Lock();
|
|
ret = wine_call_to_16( (FARPROC16)vpfn16, cbArgs, call16_handler );
|
|
if (pdwRetCode) *pdwRetCode = ret;
|
|
_LeaveWin16Lock();
|
|
|
|
if (TRACE_ON(relay))
|
|
{
|
|
DPRINTF("%04lx:RetFrom16() ss:sp=%04x:%04x retval=%08lx\n",
|
|
GetCurrentThreadId(), SELECTOROF(NtCurrentTeb()->cur_stack),
|
|
OFFSETOF(NtCurrentTeb()->cur_stack), ret);
|
|
SYSLEVEL_CheckNotLevel( 2 );
|
|
}
|
|
}
|
|
#else
|
|
assert(0); /* cannot call to 16-bit on non-Intel architectures */
|
|
#endif /* __i386__ */
|
|
|
|
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;
|
|
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;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* WOW_CallProc32W
|
|
*/
|
|
static DWORD WOW_CallProc32W16( FARPROC proc32, DWORD nrofargs, DWORD *args )
|
|
{
|
|
DWORD ret;
|
|
DWORD mutex_count;
|
|
|
|
ReleaseThunkLock( &mutex_count );
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
|
|
RestoreThunkLock( mutex_count );
|
|
|
|
TRACE("returns %08lx\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("(%ld,%ld,%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("%08lx(%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("%ld,", 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("(%ld,%ld,%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("%08lx(%p),",ptr,MapSL(ptr));
|
|
}
|
|
else
|
|
{
|
|
DWORD arg = VA_ARG16( valist, DWORD );
|
|
args[i] = arg;
|
|
TRACE("%ld,", 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);
|
|
DPRINTF("%04x ",a);
|
|
}
|
|
calladdr = VA_ARG16(args,DWORD);
|
|
stack16_pop( 3*sizeof(WORD) + 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 );
|
|
}
|