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240 lines
9.8 KiB
C
240 lines
9.8 KiB
C
/*
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* Kernel 16-bit private definitions
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*
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* Copyright 1995 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __WINE_KERNEL16_PRIVATE_H
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#define __WINE_KERNEL16_PRIVATE_H
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#include "wine/winbase16.h"
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#include "winreg.h"
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#include "winternl.h"
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#include "pshpack1.h"
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/* In-memory module structure. See 'Windows Internals' p. 219 */
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typedef struct _NE_MODULE
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{
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WORD ne_magic; /* 00 'NE' signature */
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WORD count; /* 02 Usage count (ne_ver/ne_rev on disk) */
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WORD ne_enttab; /* 04 Near ptr to entry table */
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HMODULE16 next; /* 06 Selector to next module (ne_cbenttab on disk) */
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WORD dgroup_entry; /* 08 Near ptr to segment entry for DGROUP (ne_crc on disk) */
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WORD fileinfo; /* 0a Near ptr to file info (OFSTRUCT) (ne_crc on disk) */
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WORD ne_flags; /* 0c Module flags */
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WORD ne_autodata; /* 0e Logical segment for DGROUP */
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WORD ne_heap; /* 10 Initial heap size */
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WORD ne_stack; /* 12 Initial stack size */
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DWORD ne_csip; /* 14 Initial cs:ip */
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DWORD ne_sssp; /* 18 Initial ss:sp */
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WORD ne_cseg; /* 1c Number of segments in segment table */
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WORD ne_cmod; /* 1e Number of module references */
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WORD ne_cbnrestab; /* 20 Size of non-resident names table */
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WORD ne_segtab; /* 22 Near ptr to segment table */
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WORD ne_rsrctab; /* 24 Near ptr to resource table */
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WORD ne_restab; /* 26 Near ptr to resident names table */
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WORD ne_modtab; /* 28 Near ptr to module reference table */
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WORD ne_imptab; /* 2a Near ptr to imported names table */
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DWORD ne_nrestab; /* 2c File offset of non-resident names table */
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WORD ne_cmovent; /* 30 Number of moveable entries in entry table*/
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WORD ne_align; /* 32 Alignment shift count */
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WORD ne_cres; /* 34 # of resource segments */
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BYTE ne_exetyp; /* 36 Operating system flags */
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BYTE ne_flagsothers; /* 37 Misc. flags */
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HANDLE16 dlls_to_init; /* 38 List of DLLs to initialize (ne_pretthunks on disk) */
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HANDLE16 nrname_handle; /* 3a Handle to non-resident name table (ne_psegrefbytes on disk) */
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WORD ne_swaparea; /* 3c Min. swap area size */
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WORD ne_expver; /* 3e Expected Windows version */
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/* From here, these are extra fields not present in normal Windows */
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HMODULE module32; /* PE module handle for Win32 modules */
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HMODULE owner32; /* PE module containing this one for 16-bit builtins */
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HMODULE16 self; /* Handle for this module */
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WORD self_loading_sel; /* Selector used for self-loading apps. */
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LPVOID rsrc32_map; /* HRSRC 16->32 map (for 32-bit modules) */
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LPCVOID mapping; /* mapping of the binary file */
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SIZE_T mapping_size; /* size of the file mapping */
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} NE_MODULE;
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typedef struct
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{
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BYTE type;
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BYTE flags;
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BYTE segnum;
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WORD offs;
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} ET_ENTRY;
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typedef struct
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{
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WORD first; /* ordinal */
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WORD last; /* ordinal */
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WORD next; /* bundle */
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} ET_BUNDLE;
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/* In-memory segment table */
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typedef struct
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{
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WORD filepos; /* Position in file, in sectors */
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WORD size; /* Segment size on disk */
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WORD flags; /* Segment flags */
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WORD minsize; /* Min. size of segment in memory */
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HANDLE16 hSeg; /* Selector or handle (selector - 1) of segment in memory */
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} SEGTABLEENTRY;
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/* this structure is always located at offset 0 of the DGROUP segment */
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typedef struct
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{
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WORD null; /* Always 0 */
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DWORD old_ss_sp; /* Stack pointer; used by SwitchTaskTo() */
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WORD heap; /* Pointer to the local heap information (if any) */
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WORD atomtable; /* Pointer to the local atom table (if any) */
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WORD stacktop; /* Top of the stack */
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WORD stackmin; /* Lowest stack address used so far */
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WORD stackbottom; /* Bottom of the stack */
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} INSTANCEDATA;
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/* relay entry points */
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typedef struct
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{
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WORD pushw_bp; /* pushw %bp */
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BYTE pushl; /* pushl $target */
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void (*target)();
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WORD call; /* call CALLFROM16 */
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short callfrom16;
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} ENTRYPOINT16;
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typedef struct
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{
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BYTE pushl; /* pushl $relay */
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void *relay;
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BYTE lcall; /* lcall __FLATCS__:glue */
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void *glue;
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WORD flatcs;
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WORD ret[5]; /* return sequence */
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WORD movl; /* movl arg_types[1],arg_types[0](%esi) */
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DWORD arg_types[2]; /* type of each argument */
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} CALLFROM16;
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/* THHOOK Kernel Data Structure */
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typedef struct _THHOOK
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{
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HANDLE16 hGlobalHeap; /* 00 (handle BURGERMASTER) */
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WORD pGlobalHeap; /* 02 (selector BURGERMASTER) */
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HMODULE16 hExeHead; /* 04 hFirstModule */
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HMODULE16 hExeSweep; /* 06 (unused) */
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HANDLE16 TopPDB; /* 08 (handle of KERNEL PDB) */
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HANDLE16 HeadPDB; /* 0A (first PDB in list) */
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HANDLE16 TopSizePDB; /* 0C (unused) */
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HTASK16 HeadTDB; /* 0E hFirstTask */
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HTASK16 CurTDB; /* 10 hCurrentTask */
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HTASK16 LoadTDB; /* 12 (unused) */
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HTASK16 LockTDB; /* 14 hLockedTask */
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} THHOOK;
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extern LONG __wine_call_from_16();
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extern void __wine_call_from_16_regs();
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extern THHOOK *pThhook;
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#include "poppack.h"
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#define NE_SEG_TABLE(pModule) \
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((SEGTABLEENTRY *)((char *)(pModule) + (pModule)->ne_segtab))
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#define NE_MODULE_NAME(pModule) \
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(((OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo))->szPathName)
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#define NE_GET_DATA(pModule,offset,size) \
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((const void *)(((offset)+(size) <= pModule->mapping_size) ? \
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(const char *)pModule->mapping + (offset) : NULL))
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#define NE_READ_DATA(pModule,buffer,offset,size) \
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(((offset)+(size) <= pModule->mapping_size) ? \
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(memcpy( buffer, (const char *)pModule->mapping + (offset), (size) ), TRUE) : FALSE)
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#define CURRENT_STACK16 ((STACK16FRAME*)MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved))
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#define CURRENT_DS (CURRENT_STACK16->ds)
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/* push bytes on the 16-bit stack of a thread; return a segptr to the first pushed byte */
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static inline SEGPTR stack16_push( int size )
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{
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STACK16FRAME *frame = CURRENT_STACK16;
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memmove( (char*)frame - size, frame, sizeof(*frame) );
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NtCurrentTeb()->WOW32Reserved = (char *)NtCurrentTeb()->WOW32Reserved - size;
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return (SEGPTR)((char *)NtCurrentTeb()->WOW32Reserved + sizeof(*frame));
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}
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/* pop bytes from the 16-bit stack of a thread */
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static inline void stack16_pop( int size )
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{
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STACK16FRAME *frame = CURRENT_STACK16;
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memmove( (char*)frame + size, frame, sizeof(*frame) );
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NtCurrentTeb()->WOW32Reserved = (char *)NtCurrentTeb()->WOW32Reserved + size;
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}
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/* ne_module.c */
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extern NE_MODULE *NE_GetPtr( HMODULE16 hModule );
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extern WORD NE_GetOrdinal( HMODULE16 hModule, const char *name );
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extern FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal );
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extern FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop );
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extern BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset );
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extern DWORD NE_StartTask(void);
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/* ne_segment.c */
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extern BOOL NE_LoadSegment( NE_MODULE *pModule, WORD segnum );
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extern BOOL NE_LoadAllSegments( NE_MODULE *pModule );
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extern BOOL NE_CreateSegment( NE_MODULE *pModule, int segnum );
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extern BOOL NE_CreateAllSegments( NE_MODULE *pModule );
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extern HINSTANCE16 NE_GetInstance( NE_MODULE *pModule );
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extern void NE_InitializeDLLs( HMODULE16 hModule );
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extern void NE_DllProcessAttach( HMODULE16 hModule );
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extern void NE_CallUserSignalProc( HMODULE16 hModule, UINT16 code );
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/* selector.c */
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extern WORD SELECTOR_AllocBlock( const void *base, DWORD size, unsigned char flags );
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extern WORD SELECTOR_ReallocBlock( WORD sel, const void *base, DWORD size );
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extern void SELECTOR_FreeBlock( WORD sel );
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#define IS_SELECTOR_32BIT(sel) \
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(wine_ldt_is_system(sel) || (wine_ldt_copy.flags[LOWORD(sel) >> 3] & WINE_LDT_FLAGS_32BIT))
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/* relay16.c */
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extern int relay_call_from_16( void *entry_point, unsigned char *args16, CONTEXT86 *context );
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/* snoop16.c */
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extern void SNOOP16_RegisterDLL(HMODULE16,LPCSTR);
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extern FARPROC16 SNOOP16_GetProcAddress16(HMODULE16,DWORD,FARPROC16);
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extern int SNOOP16_ShowDebugmsgSnoop(const char *dll,int ord,const char *fname);
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/* task.c */
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extern void TASK_CreateMainTask(void);
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extern HTASK16 TASK_SpawnTask( NE_MODULE *pModule, WORD cmdShow,
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LPCSTR cmdline, BYTE len, HANDLE *hThread );
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extern void TASK_ExitTask(void);
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extern HTASK16 TASK_GetTaskFromThread( DWORD thread );
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extern TDB *TASK_GetCurrent(void);
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extern void TASK_InstallTHHook( THHOOK *pNewThook );
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extern BOOL WOWTHUNK_Init(void);
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extern DWORD CallTo16_DataSelector;
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extern DWORD CallTo16_TebSelector;
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extern SEGPTR CALL32_CBClient_RetAddr;
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extern SEGPTR CALL32_CBClientEx_RetAddr;
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#endif /* __WINE_KERNEL16_PRIVATE_H */
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