938 lines
32 KiB
C
938 lines
32 KiB
C
/*
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* Emulator thunks
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*
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* Copyright 1996, 1997 Alexandre Julliard
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* Copyright 1998 Ulrich Weigand
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*/
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#include "windows.h"
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#include "callback.h"
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#include "resource.h"
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#include "task.h"
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#include "user.h"
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#include "heap.h"
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#include "hook.h"
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#include "module.h"
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#include "process.h"
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#include "stackframe.h"
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#include "selectors.h"
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#include "task.h"
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#include "except.h"
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#include "win.h"
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#include "debug.h"
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#include "flatthunk.h"
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/* List of the 16-bit callback functions. This list is used */
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/* by the build program to generate the file if1632/callto16.S */
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/* ### start build ### */
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extern LONG CALLBACK CallTo16_sreg_(const CONTEXT *context, INT32 offset);
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extern LONG CALLBACK CallTo16_lreg_(const CONTEXT *context, INT32 offset);
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extern WORD CALLBACK CallTo16_word_ (FARPROC16);
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extern LONG CALLBACK CallTo16_long_ (FARPROC16);
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extern WORD CALLBACK CallTo16_word_w (FARPROC16,WORD);
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extern LONG CALLBACK CallTo16_long_l (FARPROC16,LONG);
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extern WORD CALLBACK CallTo16_word_ww (FARPROC16,WORD,WORD);
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extern WORD CALLBACK CallTo16_word_wl (FARPROC16,WORD,LONG);
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extern WORD CALLBACK CallTo16_word_ll (FARPROC16,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_ll (FARPROC16,LONG,LONG);
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extern WORD CALLBACK CallTo16_word_www (FARPROC16,WORD,WORD,WORD);
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extern WORD CALLBACK CallTo16_word_wwl (FARPROC16,WORD,WORD,LONG);
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extern WORD CALLBACK CallTo16_word_wlw (FARPROC16,WORD,LONG,WORD);
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extern LONG CALLBACK CallTo16_long_wwl (FARPROC16,WORD,WORD,LONG);
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extern LONG CALLBACK CallTo16_long_lll (FARPROC16,LONG,LONG,LONG);
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extern WORD CALLBACK CallTo16_word_llwl (FARPROC16,LONG,LONG,WORD,LONG);
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extern WORD CALLBACK CallTo16_word_lwll (FARPROC16,LONG,WORD,LONG,LONG);
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extern WORD CALLBACK CallTo16_word_lwww (FARPROC16,LONG,WORD,WORD,WORD);
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extern WORD CALLBACK CallTo16_word_wwll (FARPROC16,WORD,WORD,LONG,LONG);
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extern WORD CALLBACK CallTo16_word_llll (FARPROC16,LONG,LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_llll (FARPROC16,LONG,LONG,LONG,LONG);
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extern WORD CALLBACK CallTo16_word_wllwl(FARPROC16,WORD,LONG,LONG,WORD,LONG);
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extern LONG CALLBACK CallTo16_long_lwwll(FARPROC16,LONG,WORD,WORD,LONG,LONG);
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extern WORD CALLBACK CallTo16_word_wwlll(FARPROC16,WORD,WORD,LONG,LONG,LONG);
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extern WORD CALLBACK CallTo16_word_wwwww(FARPROC16,WORD,WORD,WORD,WORD,WORD);
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extern WORD CALLBACK CallTo16_word_lwlll(FARPROC16,LONG,WORD,LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_lwlll(FARPROC16,LONG,WORD,LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_lllll(FARPROC16,LONG,LONG,LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_llllll(FARPROC16,LONG,LONG,LONG,LONG,LONG,
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LONG);
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extern LONG CALLBACK CallTo16_long_lllllll(FARPROC16,LONG,LONG,LONG,LONG,LONG,
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LONG,LONG);
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extern WORD CALLBACK CallTo16_word_llwwlll(FARPROC16,LONG,LONG,WORD,WORD,LONG,
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LONG,LONG);
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extern LONG CALLBACK CallTo16_word_lwwlllll(FARPROC16,LONG,WORD,WORD,LONG,LONG,
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LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_llllllll(FARPROC16,LONG,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_lllllllll(FARPROC16,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_llllllllll(FARPROC16,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_lllllllllll(FARPROC16,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,LONG,
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LONG);
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extern LONG CALLBACK CallTo16_long_llllllllllll(FARPROC16,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,LONG,
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LONG,LONG);
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extern LONG CALLBACK CallTo16_long_lwwllwlllllw(FARPROC16,LONG,WORD,WORD,LONG,
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LONG,WORD,LONG,LONG,LONG,LONG,
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LONG,WORD);
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extern LONG CALLBACK CallTo16_long_lllllllllllll(FARPROC16,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG);
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extern LONG CALLBACK CallTo16_long_llllllllllllll(FARPROC16,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,
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LONG);
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extern LONG CALLBACK CallTo16_word_lwwwwlwwwwllll(FARPROC16,LONG,WORD,WORD,
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WORD,WORD,LONG,WORD,WORD,
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WORD,WORD,LONG,LONG,LONG,
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LONG);
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extern LONG CALLBACK CallTo16_long_lllllllllllllll(FARPROC16,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,
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LONG,LONG);
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extern LONG CALLBACK CallTo16_long_llllllllllllllll(FARPROC16,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG,LONG,LONG,
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LONG,LONG,LONG);
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/* ### stop build ### */
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typedef void (*RELAY)();
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#pragma pack(1)
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typedef struct tagTHUNK
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{
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BYTE popl_eax; /* 0x58 popl %eax (return address)*/
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BYTE pushl_func; /* 0x68 pushl $proc */
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FARPROC32 proc WINE_PACKED;
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BYTE pushl_eax; /* 0x50 pushl %eax */
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BYTE jmp; /* 0xe9 jmp relay (relative jump)*/
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RELAY relay WINE_PACKED;
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struct tagTHUNK *next WINE_PACKED;
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} THUNK;
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#pragma pack(4)
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#define DECL_THUNK(name,proc,relay) \
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THUNK name = { 0x58, 0x68, (FARPROC32)(proc), 0x50, 0xe9, \
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(RELAY)((char *)(relay) - (char *)(&(name).next)), NULL }
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static THUNK *firstThunk = NULL;
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static LRESULT WINAPI THUNK_CallWndProc16( WNDPROC16 proc, HWND16 hwnd,
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UINT16 msg, WPARAM16 wParam,
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LPARAM lParam );
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static void WINAPI THUNK_CallTaskReschedule(void);
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static BOOL32 WINAPI THUNK_WOWCallback16Ex( FARPROC16,DWORD,DWORD,
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LPVOID,LPDWORD );
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/* TASK_Reschedule() 16-bit entry point */
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static FARPROC16 TASK_RescheduleProc;
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extern void CallFrom16_p_long_wwwll(void);
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/* Callbacks function table for the emulator */
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static const CALLBACKS_TABLE CALLBACK_EmulatorTable =
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{
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(void *)CallTo16_sreg_, /* CallRegisterShortProc */
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(void *)CallTo16_lreg_, /* CallRegisterLongProc */
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THUNK_CallTaskReschedule, /* CallTaskRescheduleProc */
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CallFrom16_p_long_wwwll, /* CallFrom16WndProc */
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THUNK_CallWndProc16, /* CallWndProc */
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(void *)CallTo16_long_lwwll, /* CallDriverProc */
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(void *)CallTo16_word_wwlll, /* CallDriverCallback */
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(void *)CallTo16_word_wwlll, /* CallTimeFuncProc */
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(void *)CallTo16_word_w, /* CallWindowsExitProc */
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(void *)CallTo16_word_lwww, /* CallWordBreakProc */
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(void *)CallTo16_word_ww, /* CallBootAppProc */
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(void *)CallTo16_word_www, /* CallLoadAppSegProc */
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(void *)CallTo16_word_, /* CallSystemTimerProc */
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(void *)CallTo16_word_www, /* CallResourceHandlerProc */
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(void *)CallTo16_long_l, /* CallWOWCallbackProc */
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THUNK_WOWCallback16Ex, /* CallWOWCallback16Ex */
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(void *)CallTo16_long_l, /* CallASPIPostProc */
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(void *)CallTo16_word_lwll, /* CallDrvControlProc */
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(void *)CallTo16_word_lwlll, /* CallDrvEnableProc */
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(void *)CallTo16_word_llll, /* CallDrvEnumDFontsProc */
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(void *)CallTo16_word_lwll, /* CallDrvEnumObjProc */
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(void *)CallTo16_word_lwwlllll, /* CallDrvOutputProc */
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(void *)CallTo16_long_lwlll, /* CallDrvRealizeProc */
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(void *)CallTo16_word_lwwwwlwwwwllll, /* CallDrvStretchBltProc */
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(void *)CallTo16_long_lwwllwlllllw, /* CallDrvExtTextOutProc */
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(void *)CallTo16_word_llwwlll /* CallDrvGetCharWidth */
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};
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/***********************************************************************
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* THUNK_Init
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*/
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BOOL32 THUNK_Init(void)
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{
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/* Set the window proc calling functions */
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Callbacks = &CALLBACK_EmulatorTable;
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/* Get the 16-bit reschedule function pointer */
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TASK_RescheduleProc = MODULE_GetWndProcEntry16( "TASK_Reschedule" );
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return TRUE;
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}
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/***********************************************************************
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* THUNK_Alloc
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*/
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static THUNK *THUNK_Alloc( FARPROC32 func, RELAY relay )
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{
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THUNK *thunk = HeapAlloc( GetProcessHeap(), 0, sizeof(*thunk) );
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if (thunk)
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{
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thunk->popl_eax = 0x58;
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thunk->pushl_func = 0x68;
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thunk->proc = func;
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thunk->pushl_eax = 0x50;
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thunk->jmp = 0xe9;
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thunk->relay = (RELAY)((char *)relay - (char *)(&thunk->next));
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thunk->next = firstThunk;
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firstThunk = thunk;
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}
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return thunk;
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}
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/***********************************************************************
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* THUNK_Find
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*/
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static THUNK *THUNK_Find( FARPROC32 func )
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{
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THUNK *thunk = firstThunk;
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while (thunk && (thunk->proc != func)) thunk = thunk->next;
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return thunk;
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}
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/***********************************************************************
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* THUNK_Free
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*/
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static void THUNK_Free( THUNK *thunk )
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{
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if (HEAP_IsInsideHeap( GetProcessHeap(), 0, thunk ))
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{
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THUNK **prev = &firstThunk;
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while (*prev && (*prev != thunk)) prev = &(*prev)->next;
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if (*prev)
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{
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*prev = thunk->next;
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HeapFree( GetProcessHeap(), 0, thunk );
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return;
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}
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}
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ERR(thunk, "invalid thunk addr %p\n", thunk );
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}
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/***********************************************************************
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* THUNK_CallWndProc16
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*
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* Call a 16-bit window procedure
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*/
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static LRESULT WINAPI THUNK_CallWndProc16( WNDPROC16 proc, HWND16 hwnd,
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UINT16 msg, WPARAM16 wParam,
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LPARAM lParam )
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{
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CONTEXT context;
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LRESULT ret;
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WORD *args;
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WND *wndPtr = WIN_FindWndPtr( hwnd );
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DWORD offset = 0;
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THDB *thdb = THREAD_Current();
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/* Window procedures want ax = hInstance, ds = es = ss */
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memset(&context, '\0', sizeof(context));
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DS_reg(&context) = SELECTOROF(thdb->cur_stack);
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ES_reg(&context) = DS_reg(&context);
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EAX_reg(&context) = wndPtr ? wndPtr->hInstance : DS_reg(&context);
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CS_reg(&context) = SELECTOROF(proc);
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EIP_reg(&context) = OFFSETOF(proc);
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EBP_reg(&context) = OFFSETOF(thdb->cur_stack)
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+ (WORD)&((STACK16FRAME*)0)->bp;
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if (lParam)
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{
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/* Some programs (eg. the "Undocumented Windows" examples, JWP) only
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work if structures passed in lParam are placed in the stack/data
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segment. Programmers easily make the mistake of converting lParam
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to a near rather than a far pointer, since Windows apparently
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allows this. We copy the structures to the 16 bit stack; this is
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ugly but makes these programs work. */
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switch (msg)
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{
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case WM_CREATE:
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case WM_NCCREATE:
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offset = sizeof(CREATESTRUCT16); break;
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case WM_DRAWITEM:
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offset = sizeof(DRAWITEMSTRUCT16); break;
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case WM_COMPAREITEM:
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offset = sizeof(COMPAREITEMSTRUCT16); break;
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}
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if (offset)
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{
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void *s = PTR_SEG_TO_LIN(lParam);
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lParam = STACK16_PUSH( thdb, offset );
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memcpy( PTR_SEG_TO_LIN(lParam), s, offset );
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}
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}
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args = (WORD *)THREAD_STACK16(thdb) - 5;
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args[0] = LOWORD(lParam);
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args[1] = HIWORD(lParam);
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args[2] = wParam;
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args[3] = msg;
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args[4] = hwnd;
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ret = CallTo16_sreg_( &context, 5 * sizeof(WORD) );
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if (offset) STACK16_POP( thdb, offset );
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return ret;
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}
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/***********************************************************************
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* THUNK_CallTaskReschedule
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*/
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static void WINAPI THUNK_CallTaskReschedule(void)
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{
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CallTo16_word_(TASK_RescheduleProc);
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}
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/***********************************************************************
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* THUNK_EnumObjects16 (GDI.71)
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*/
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INT16 WINAPI THUNK_EnumObjects16( HDC16 hdc, INT16 nObjType,
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GOBJENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_ll );
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return EnumObjects16( hdc, nObjType, (GOBJENUMPROC16)&thunk, lParam );
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}
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/*************************************************************************
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* THUNK_EnumFonts16 (GDI.70)
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*/
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INT16 WINAPI THUNK_EnumFonts16( HDC16 hdc, LPCSTR lpFaceName,
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FONTENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_llwl );
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return EnumFonts16( hdc, lpFaceName, (FONTENUMPROC16)&thunk, lParam );
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}
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/******************************************************************
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* THUNK_EnumMetaFile16 (GDI.175)
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*/
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BOOL16 WINAPI THUNK_EnumMetaFile16( HDC16 hdc, HMETAFILE16 hmf,
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MFENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wllwl );
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return EnumMetaFile16( hdc, hmf, (MFENUMPROC16)&thunk, lParam );
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}
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/*************************************************************************
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* THUNK_EnumFontFamilies16 (GDI.330)
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*/
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INT16 WINAPI THUNK_EnumFontFamilies16( HDC16 hdc, LPCSTR lpszFamily,
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FONTENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_llwl );
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return EnumFontFamilies16(hdc, lpszFamily, (FONTENUMPROC16)&thunk, lParam);
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}
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/*************************************************************************
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* THUNK_EnumFontFamiliesEx16 (GDI.613)
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*/
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INT16 WINAPI THUNK_EnumFontFamiliesEx16( HDC16 hdc, LPLOGFONT16 lpLF,
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FONTENUMPROCEX16 func, LPARAM lParam,
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DWORD reserved )
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{
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DECL_THUNK( thunk, func, CallTo16_word_llwl );
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return EnumFontFamiliesEx16( hdc, lpLF, (FONTENUMPROCEX16)&thunk,
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lParam, reserved );
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}
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/**********************************************************************
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* THUNK_LineDDA16 (GDI.100)
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*/
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void WINAPI THUNK_LineDDA16( INT16 nXStart, INT16 nYStart, INT16 nXEnd,
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INT16 nYEnd, LINEDDAPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wwl );
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LineDDA16( nXStart, nYStart, nXEnd, nYEnd, (LINEDDAPROC16)&thunk, lParam );
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}
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/*******************************************************************
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* THUNK_EnumWindows16 (USER.54)
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*/
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BOOL16 WINAPI THUNK_EnumWindows16( WNDENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wl );
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return EnumWindows16( (WNDENUMPROC16)&thunk, lParam );
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}
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/**********************************************************************
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* THUNK_EnumChildWindows16 (USER.55)
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*/
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BOOL16 WINAPI THUNK_EnumChildWindows16( HWND16 parent, WNDENUMPROC16 func,
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LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wl );
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return EnumChildWindows16( parent, (WNDENUMPROC16)&thunk, lParam );
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}
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/**********************************************************************
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* THUNK_EnumTaskWindows16 (USER.225)
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*/
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BOOL16 WINAPI THUNK_EnumTaskWindows16( HTASK16 hTask, WNDENUMPROC16 func,
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LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wl );
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return EnumTaskWindows16( hTask, (WNDENUMPROC16)&thunk, lParam );
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}
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/***********************************************************************
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* THUNK_EnumProps16 (USER.27)
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*/
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INT16 WINAPI THUNK_EnumProps16( HWND16 hwnd, PROPENUMPROC16 func )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wlw );
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return EnumProps16( hwnd, (PROPENUMPROC16)&thunk );
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}
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/***********************************************************************
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* THUNK_GrayString16 (USER.185)
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*/
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BOOL16 WINAPI THUNK_GrayString16( HDC16 hdc, HBRUSH16 hbr,
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GRAYSTRINGPROC16 func, LPARAM lParam,
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INT16 cch, INT16 x, INT16 y,
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INT16 cx, INT16 cy )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wlw );
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if (!func)
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return GrayString16( hdc, hbr, NULL, lParam, cch, x, y, cx, cy );
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else
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return GrayString16( hdc, hbr, (GRAYSTRINGPROC16)&thunk, lParam, cch,
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x, y, cx, cy );
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}
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/***********************************************************************
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* THUNK_SetWindowsHook16 (USER.121)
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*/
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FARPROC16 WINAPI THUNK_SetWindowsHook16( INT16 id, HOOKPROC16 proc )
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{
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HINSTANCE16 hInst = FarGetOwner( HIWORD(proc) );
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HTASK16 hTask = (id == WH_MSGFILTER) ? GetCurrentTask() : 0;
|
|
THUNK *thunk = THUNK_Alloc( (FARPROC16)proc, (RELAY)CallTo16_long_wwl );
|
|
if (!thunk) return 0;
|
|
return (FARPROC16)SetWindowsHookEx16( id, (HOOKPROC16)thunk, hInst, hTask);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* THUNK_UnhookWindowsHook16 (USER.234)
|
|
*/
|
|
BOOL16 WINAPI THUNK_UnhookWindowsHook16( INT16 id, HOOKPROC16 proc )
|
|
{
|
|
BOOL16 ret;
|
|
THUNK *thunk = THUNK_Find( (FARPROC16)proc );
|
|
if (!thunk) return FALSE;
|
|
ret = UnhookWindowsHook16( id, (HOOKPROC16)thunk );
|
|
THUNK_Free( thunk );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* THUNK_SetWindowsHookEx16 (USER.291)
|
|
*/
|
|
HHOOK WINAPI THUNK_SetWindowsHookEx16( INT16 id, HOOKPROC16 proc,
|
|
HINSTANCE16 hInst, HTASK16 hTask )
|
|
{
|
|
THUNK *thunk = THUNK_Alloc( (FARPROC16)proc, (RELAY)CallTo16_long_wwl );
|
|
if (!thunk) return 0;
|
|
return SetWindowsHookEx16( id, (HOOKPROC16)thunk, hInst, hTask );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* THUNK_UnhookWindowHookEx16 (USER.292)
|
|
*/
|
|
BOOL16 WINAPI THUNK_UnhookWindowsHookEx16( HHOOK hhook )
|
|
{
|
|
THUNK *thunk = (THUNK *)HOOK_GetProc16( hhook );
|
|
BOOL16 ret = UnhookWindowsHookEx16( hhook );
|
|
if (thunk) THUNK_Free( thunk );
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
static FARPROC16 defDCHookProc = NULL;
|
|
|
|
/***********************************************************************
|
|
* THUNK_SetDCHook (GDI.190)
|
|
*/
|
|
BOOL16 WINAPI THUNK_SetDCHook( HDC16 hdc, FARPROC16 proc, DWORD dwHookData )
|
|
{
|
|
THUNK *thunk, *oldThunk;
|
|
|
|
if (!defDCHookProc) /* Get DCHook Win16 entry point */
|
|
defDCHookProc = NE_GetEntryPoint( GetModuleHandle16("USER"), 362 );
|
|
|
|
if (proc != defDCHookProc)
|
|
{
|
|
thunk = THUNK_Alloc( proc, (RELAY)CallTo16_word_wwll );
|
|
if (!thunk) return FALSE;
|
|
}
|
|
else thunk = (THUNK *)DCHook;
|
|
|
|
/* Free the previous thunk */
|
|
GetDCHook( hdc, (FARPROC16 *)&oldThunk );
|
|
if (oldThunk && (oldThunk != (THUNK *)DCHook)) THUNK_Free( oldThunk );
|
|
|
|
return SetDCHook( hdc, (FARPROC16)thunk, dwHookData );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* THUNK_GetDCHook (GDI.191)
|
|
*/
|
|
DWORD WINAPI THUNK_GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
|
|
{
|
|
THUNK *thunk = NULL;
|
|
DWORD ret = GetDCHook( hdc, (FARPROC16 *)&thunk );
|
|
if (thunk)
|
|
{
|
|
if (thunk == (THUNK *)DCHook)
|
|
{
|
|
if (!defDCHookProc) /* Get DCHook Win16 entry point */
|
|
defDCHookProc = NE_GetEntryPoint(GetModuleHandle16("USER"),362);
|
|
*phookProc = defDCHookProc;
|
|
}
|
|
else *phookProc = thunk->proc;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* THUNK_SetTaskSignalProc (KERNEL.38)
|
|
*/
|
|
FARPROC16 WINAPI THUNK_SetTaskSignalProc( HTASK16 hTask, FARPROC16 proc )
|
|
{
|
|
static FARPROC16 defSignalProc16 = NULL;
|
|
|
|
THUNK *thunk = NULL;
|
|
|
|
if( !defSignalProc16 )
|
|
defSignalProc16 = NE_GetEntryPoint(GetModuleHandle16("USER"), 314 );
|
|
|
|
if( proc == defSignalProc16 )
|
|
thunk = (THUNK*)SetTaskSignalProc( hTask, (FARPROC16)&USER_SignalProc );
|
|
else
|
|
{
|
|
thunk = THUNK_Alloc( proc, (RELAY)CallTo16_word_wwwww );
|
|
if( !thunk ) return FALSE;
|
|
thunk = (THUNK*)SetTaskSignalProc( hTask, (FARPROC16)thunk );
|
|
}
|
|
|
|
if( thunk != (THUNK*)USER_SignalProc )
|
|
{
|
|
if( !thunk ) return NULL;
|
|
|
|
proc = thunk->proc;
|
|
THUNK_Free( thunk );
|
|
return proc;
|
|
}
|
|
return defSignalProc16;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* THUNK_CreateThread16 (KERNEL.441)
|
|
*/
|
|
static DWORD CALLBACK THUNK_StartThread16( LPVOID threadArgs )
|
|
{
|
|
FARPROC16 start = ((FARPROC16 *)threadArgs)[0];
|
|
DWORD param = ((DWORD *)threadArgs)[1];
|
|
HeapFree( GetProcessHeap(), 0, threadArgs );
|
|
|
|
return CallTo16_long_l( start, param );
|
|
}
|
|
HANDLE32 WINAPI THUNK_CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
|
|
FARPROC16 start, SEGPTR param,
|
|
DWORD flags, LPDWORD id )
|
|
{
|
|
DWORD *threadArgs = HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD) );
|
|
if (!threadArgs) return INVALID_HANDLE_VALUE32;
|
|
threadArgs[0] = (DWORD)start;
|
|
threadArgs[1] = (DWORD)param;
|
|
|
|
return CreateThread( sa, stack, THUNK_StartThread16, threadArgs, flags, id );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* THUNK_WOWCallback16Ex (WOW32.3)(KERNEL32.55)
|
|
* Generic thunking routine to call 16 bit functions from 32bit code.
|
|
*
|
|
* RETURNS
|
|
* TRUE if the call was done
|
|
*/
|
|
static BOOL32 WINAPI THUNK_WOWCallback16Ex(
|
|
FARPROC16 proc, /* [in] 16bit function to call */
|
|
DWORD dwFlags, /* [in] flags (WCB_*) */
|
|
DWORD cbArgs, /* [in] number of arguments */
|
|
LPVOID xargs, /* [in/out] arguments */
|
|
LPDWORD pdwret /* [out] return value of the 16bit call */
|
|
) {
|
|
LPDWORD args = (LPDWORD)xargs;
|
|
DWORD ret,i;
|
|
|
|
TRACE(relay,"(%p,0x%08lx,%ld,%p,%p)\n",
|
|
proc,dwFlags,cbArgs,xargs,pdwret
|
|
);
|
|
if (dwFlags == WCB16_CDECL) {
|
|
/* swap the arguments */
|
|
args = HeapAlloc(GetProcessHeap(),0,cbArgs*sizeof(DWORD));
|
|
for (i=0;i<cbArgs;i++)
|
|
args[i] = ((DWORD*)xargs)[cbArgs-i-1];
|
|
}
|
|
switch (cbArgs) {
|
|
case 0: ret = CallTo16_long_(proc);break;
|
|
case 1: ret = CallTo16_long_l(proc,args[0]);break;
|
|
case 2: ret = CallTo16_long_ll(proc,args[0],args[1]);break;
|
|
case 3: ret = CallTo16_long_lll(proc,args[0],args[1],args[2]);break;
|
|
case 4: ret = CallTo16_long_llll(proc,args[0],args[1],args[2],args[3]);
|
|
break;
|
|
case 5: ret = CallTo16_long_lllll(proc,args[0],args[1],args[2],args[3],
|
|
args[4]
|
|
);
|
|
break;
|
|
case 6: ret = CallTo16_long_llllll(proc,args[0],args[1],args[2],args[3],
|
|
args[4],args[5]
|
|
);
|
|
break;
|
|
case 7: ret = CallTo16_long_lllllll(proc,args[0],args[1],args[2],args[3],
|
|
args[4],args[5],args[6]
|
|
);
|
|
break;
|
|
case 8: ret = CallTo16_long_llllllll(proc,args[0],args[1],args[2],args[3],
|
|
args[4],args[5],args[6],args[7]
|
|
);
|
|
break;
|
|
case 9: ret = CallTo16_long_lllllllll(proc,args[0],args[1],args[2],args[3],
|
|
args[4],args[5],args[6],args[7],args[8]
|
|
);
|
|
break;
|
|
case 10:ret = CallTo16_long_llllllllll(proc,args[0],args[1],args[2],args[3],
|
|
args[4],args[5],args[6],args[7],args[8],args[9]
|
|
);
|
|
break;
|
|
case 11:ret = CallTo16_long_lllllllllll(proc,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 = CallTo16_long_llllllllllll(proc,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 = CallTo16_long_lllllllllllll(proc,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 = CallTo16_long_llllllllllllll(proc,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 = CallTo16_long_lllllllllllllll(proc,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;
|
|
case 16:ret = CallTo16_long_llllllllllllllll(proc,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],args[15]
|
|
);
|
|
break;
|
|
default:
|
|
ERR(thunk,"%ld arguments not supported.\n",cbArgs);
|
|
if (dwFlags == WCB16_CDECL)
|
|
HeapFree(GetProcessHeap(),0,args);
|
|
return FALSE;
|
|
}
|
|
if (dwFlags == WCB16_CDECL)
|
|
HeapFree(GetProcessHeap(),0,args);
|
|
if (pdwret)
|
|
*pdwret = ret;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* 16->32 Flat Thunk routines:
|
|
*/
|
|
|
|
/***********************************************************************
|
|
* ThunkConnect16 (KERNEL.651)
|
|
* Connects a 32bit and a 16bit thunkbuffer.
|
|
*/
|
|
UINT32 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 */
|
|
) {
|
|
BOOL32 directionSL;
|
|
|
|
if (!lstrncmp32A(TD->magic, "SL01", 4))
|
|
{
|
|
directionSL = TRUE;
|
|
|
|
TRACE(thunk, "SL01 thunk %s (%lx) -> %s (%s), Reason: %ld\n",
|
|
module16, (DWORD)TD, module32, thunkfun32, dwReason);
|
|
}
|
|
else if (!lstrncmp32A(TD->magic, "LS01", 4))
|
|
{
|
|
directionSL = FALSE;
|
|
|
|
TRACE(thunk, "LS01 thunk %s (%lx) <- %s (%s), Reason: %ld\n",
|
|
module16, (DWORD)TD, module32, thunkfun32, dwReason);
|
|
}
|
|
else
|
|
{
|
|
ERR(thunk, "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 = PTR_SEG_TO_LIN(SL16->apiDatabase);
|
|
SL->targetDB = NULL;
|
|
|
|
lstrcpyn32A(SL->pszDll16, module16, 255);
|
|
lstrcpyn32A(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(thunk, "Preloading 32-bit library\n");
|
|
LoadLibrary32A(module32);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* nothing to do */
|
|
}
|
|
break;
|
|
|
|
case DLL_PROCESS_DETACH:
|
|
/* FIXME: cleanup */
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* C16ThkSL (KERNEL.630)
|
|
*/
|
|
|
|
void WINAPI C16ThkSL(CONTEXT *context)
|
|
{
|
|
extern void CallFrom16_t_long_(void);
|
|
LPBYTE stub = PTR_SEG_TO_LIN(EAX_reg(context)), x = stub;
|
|
WORD cs, ds;
|
|
GET_CS(cs);
|
|
GET_DS(ds);
|
|
|
|
/* We produce the following code:
|
|
*
|
|
* mov ax, __FLATDS
|
|
* mov es, ax
|
|
* movzx ecx, cx
|
|
* mov edx, es:[ecx + $EDX]
|
|
* push bp
|
|
* push edx
|
|
* call __FLATCS:CallFrom16_t_long_
|
|
*/
|
|
|
|
*x++ = 0xB8; *((WORD *)x)++ = ds;
|
|
*x++ = 0x8E; *x++ = 0xC0;
|
|
*x++ = 0x66; *x++ = 0x0F; *x++ = 0xB7; *x++ = 0xC9;
|
|
*x++ = 0x67; *x++ = 0x66; *x++ = 0x26; *x++ = 0x8B;
|
|
*x++ = 0x91; *((DWORD *)x)++ = EDX_reg(context);
|
|
|
|
*x++ = 0x55;
|
|
*x++ = 0x66; *x++ = 0x52;
|
|
*x++ = 0x66; *x++ = 0x9A; *((DWORD *)x)++ = (DWORD)CallFrom16_t_long_;
|
|
*((WORD *)x)++ = cs;
|
|
|
|
/* Jump to the stub code just created */
|
|
IP_reg(context) = LOWORD(EAX_reg(context));
|
|
CS_reg(context) = HIWORD(EAX_reg(context));
|
|
|
|
/* Since C16ThkSL got called by a jmp, we need to leave the
|
|
orginal return address on the stack */
|
|
SP_reg(context) -= 4;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* C16ThkSL01 (KERNEL.631)
|
|
*/
|
|
|
|
void WINAPI C16ThkSL01(CONTEXT *context)
|
|
{
|
|
LPBYTE stub = PTR_SEG_TO_LIN(EAX_reg(context)), x = stub;
|
|
|
|
if (stub)
|
|
{
|
|
struct ThunkDataSL16 *SL16 = PTR_SEG_TO_LIN(EDX_reg(context));
|
|
struct ThunkDataSL *td = SL16->fpData;
|
|
|
|
extern void CallFrom16_t_long_(void);
|
|
DWORD procAddress = (DWORD)GetProcAddress16(GetModuleHandle16("KERNEL"), 631);
|
|
WORD cs;
|
|
GET_CS(cs);
|
|
|
|
if (!td)
|
|
{
|
|
ERR(thunk, "ThunkConnect16 was not called!\n");
|
|
return;
|
|
}
|
|
|
|
TRACE(thunk, "Creating stub for ThunkDataSL %08lx\n", (DWORD)td);
|
|
|
|
|
|
/* We produce the following code:
|
|
*
|
|
* xor eax, eax
|
|
* mov edx, $td
|
|
* call C16ThkSL01
|
|
* push bp
|
|
* push edx
|
|
* call __FLATCS:CallFrom16_t_long_
|
|
*/
|
|
|
|
*x++ = 0x66; *x++ = 0x33; *x++ = 0xC0;
|
|
*x++ = 0x66; *x++ = 0xBA; *((DWORD *)x)++ = (DWORD)td;
|
|
*x++ = 0x9A; *((DWORD *)x)++ = procAddress;
|
|
|
|
*x++ = 0x55;
|
|
*x++ = 0x66; *x++ = 0x52;
|
|
*x++ = 0x66; *x++ = 0x9A; *((DWORD *)x)++ = (DWORD)CallFrom16_t_long_;
|
|
*((WORD *)x)++ = cs;
|
|
|
|
/* Jump to the stub code just created */
|
|
IP_reg(context) = LOWORD(EAX_reg(context));
|
|
CS_reg(context) = HIWORD(EAX_reg(context));
|
|
|
|
/* Since C16ThkSL01 got called by a jmp, we need to leave the
|
|
orginal return address on the stack */
|
|
SP_reg(context) -= 4;
|
|
}
|
|
else
|
|
{
|
|
struct ThunkDataSL *td = (struct ThunkDataSL *)EDX_reg(context);
|
|
DWORD targetNr = CX_reg(context) / 4;
|
|
struct SLTargetDB *tdb;
|
|
|
|
TRACE(thunk, "Process %08lx calling target %ld of ThunkDataSL %08lx\n",
|
|
(DWORD)PROCESS_Current(), targetNr, (DWORD)td);
|
|
|
|
for (tdb = td->targetDB; tdb; tdb = tdb->next)
|
|
if (tdb->process == PROCESS_Current())
|
|
break;
|
|
|
|
if (!tdb)
|
|
{
|
|
TRACE(thunk, "Loading 32-bit library %s\n", td->pszDll32);
|
|
LoadLibrary32A(td->pszDll32);
|
|
|
|
for (tdb = td->targetDB; tdb; tdb = tdb->next)
|
|
if (tdb->process == PROCESS_Current())
|
|
break;
|
|
}
|
|
|
|
if (tdb)
|
|
{
|
|
EDX_reg(context) = tdb->targetTable[targetNr];
|
|
|
|
TRACE(thunk, "Call target is %08lx\n", EDX_reg(context));
|
|
}
|
|
else
|
|
{
|
|
WORD *stack = PTR_SEG_OFF_TO_LIN(SS_reg(context), SP_reg(context));
|
|
DX_reg(context) = HIWORD(td->apiDB[targetNr].errorReturnValue);
|
|
AX_reg(context) = LOWORD(td->apiDB[targetNr].errorReturnValue);
|
|
IP_reg(context) = stack[2];
|
|
CS_reg(context) = stack[3];
|
|
SP_reg(context) += td->apiDB[targetNr].nrArgBytes + 4;
|
|
|
|
ERR(thunk, "Process %08lx did not ThunkConnect32 %s to %s\n",
|
|
(DWORD)PROCESS_Current(), td->pszDll32, td->pszDll16);
|
|
}
|
|
}
|
|
}
|
|
|
|
DWORD WINAPI
|
|
WOW16Call(WORD x,WORD y,WORD z) {
|
|
int i;
|
|
DWORD calladdr;
|
|
FIXME(thunk,"(0x%04x,0x%04x,%d),calling (",x,y,z);
|
|
|
|
for (i=0;i<x/2;i++) {
|
|
WORD a = STACK16_POP(THREAD_Current(),2);
|
|
DPRINTF("%04x ",a);
|
|
}
|
|
calladdr = STACK16_POP(THREAD_Current(),4);
|
|
DPRINTF(") calling address was 0x%08lx\n",calladdr);
|
|
return 0;
|
|
}
|