2 * Kernel 16-bit private definitions
4 * Copyright 1995 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #ifndef __WINE_KERNEL16_PRIVATE_H
22 #define __WINE_KERNEL16_PRIVATE_H
24 #include "wine/winbase16.h"
30 /* In-memory module structure. See 'Windows Internals' p. 219 */
31 typedef struct _NE_MODULE
33 WORD ne_magic
; /* 00 'NE' signature */
34 WORD count
; /* 02 Usage count (ne_ver/ne_rev on disk) */
35 WORD ne_enttab
; /* 04 Near ptr to entry table */
36 HMODULE16 next
; /* 06 Selector to next module (ne_cbenttab on disk) */
37 WORD dgroup_entry
; /* 08 Near ptr to segment entry for DGROUP (ne_crc on disk) */
38 WORD fileinfo
; /* 0a Near ptr to file info (OFSTRUCT) (ne_crc on disk) */
39 WORD ne_flags
; /* 0c Module flags */
40 WORD ne_autodata
; /* 0e Logical segment for DGROUP */
41 WORD ne_heap
; /* 10 Initial heap size */
42 WORD ne_stack
; /* 12 Initial stack size */
43 DWORD ne_csip
; /* 14 Initial cs:ip */
44 DWORD ne_sssp
; /* 18 Initial ss:sp */
45 WORD ne_cseg
; /* 1c Number of segments in segment table */
46 WORD ne_cmod
; /* 1e Number of module references */
47 WORD ne_cbnrestab
; /* 20 Size of non-resident names table */
48 WORD ne_segtab
; /* 22 Near ptr to segment table */
49 WORD ne_rsrctab
; /* 24 Near ptr to resource table */
50 WORD ne_restab
; /* 26 Near ptr to resident names table */
51 WORD ne_modtab
; /* 28 Near ptr to module reference table */
52 WORD ne_imptab
; /* 2a Near ptr to imported names table */
53 DWORD ne_nrestab
; /* 2c File offset of non-resident names table */
54 WORD ne_cmovent
; /* 30 Number of moveable entries in entry table*/
55 WORD ne_align
; /* 32 Alignment shift count */
56 WORD ne_cres
; /* 34 # of resource segments */
57 BYTE ne_exetyp
; /* 36 Operating system flags */
58 BYTE ne_flagsothers
; /* 37 Misc. flags */
59 HANDLE16 dlls_to_init
; /* 38 List of DLLs to initialize (ne_pretthunks on disk) */
60 HANDLE16 nrname_handle
; /* 3a Handle to non-resident name table (ne_psegrefbytes on disk) */
61 WORD ne_swaparea
; /* 3c Min. swap area size */
62 WORD ne_expver
; /* 3e Expected Windows version */
63 /* From here, these are extra fields not present in normal Windows */
64 HMODULE module32
; /* PE module handle for Win32 modules */
65 HMODULE16 self
; /* Handle for this module */
66 WORD self_loading_sel
; /* Selector used for self-loading apps. */
67 LPVOID rsrc32_map
; /* HRSRC 16->32 map (for 32-bit modules) */
68 LPCVOID mapping
; /* mapping of the binary file */
69 SIZE_T mapping_size
; /* size of the file mapping */
82 WORD first
; /* ordinal */
83 WORD last
; /* ordinal */
84 WORD next
; /* bundle */
88 /* In-memory segment table */
91 WORD filepos
; /* Position in file, in sectors */
92 WORD size
; /* Segment size on disk */
93 WORD flags
; /* Segment flags */
94 WORD minsize
; /* Min. size of segment in memory */
95 HANDLE16 hSeg
; /* Selector or handle (selector - 1) of segment in memory */
98 /* this structure is always located at offset 0 of the DGROUP segment */
101 WORD null
; /* Always 0 */
102 DWORD old_ss_sp
; /* Stack pointer; used by SwitchTaskTo() */
103 WORD heap
; /* Pointer to the local heap information (if any) */
104 WORD atomtable
; /* Pointer to the local atom table (if any) */
105 WORD stacktop
; /* Top of the stack */
106 WORD stackmin
; /* Lowest stack address used so far */
107 WORD stackbottom
; /* Bottom of the stack */
110 /* THHOOK Kernel Data Structure */
111 typedef struct _THHOOK
113 HANDLE16 hGlobalHeap
; /* 00 (handle BURGERMASTER) */
114 WORD pGlobalHeap
; /* 02 (selector BURGERMASTER) */
115 HMODULE16 hExeHead
; /* 04 hFirstModule */
116 HMODULE16 hExeSweep
; /* 06 (unused) */
117 HANDLE16 TopPDB
; /* 08 (handle of KERNEL PDB) */
118 HANDLE16 HeadPDB
; /* 0A (first PDB in list) */
119 HANDLE16 TopSizePDB
; /* 0C (unused) */
120 HTASK16 HeadTDB
; /* 0E hFirstTask */
121 HTASK16 CurTDB
; /* 10 hCurrentTask */
122 HTASK16 LoadTDB
; /* 12 (unused) */
123 HTASK16 LockTDB
; /* 14 hLockedTask */
126 extern THHOOK
*pThhook
;
130 #define NE_SEG_TABLE(pModule) \
131 ((SEGTABLEENTRY *)((char *)(pModule) + (pModule)->ne_segtab))
133 #define NE_MODULE_NAME(pModule) \
134 (((OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo))->szPathName)
136 #define NE_GET_DATA(pModule,offset,size) \
137 ((const void *)(((offset)+(size) <= pModule->mapping_size) ? \
138 (const char *)pModule->mapping + (offset) : NULL))
140 #define NE_READ_DATA(pModule,buffer,offset,size) \
141 (((offset)+(size) <= pModule->mapping_size) ? \
142 (memcpy( buffer, (const char *)pModule->mapping + (offset), (size) ), TRUE) : FALSE)
144 #define CURRENT_STACK16 ((STACK16FRAME*)MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved))
145 #define CURRENT_DS (CURRENT_STACK16->ds)
147 /* push bytes on the 16-bit stack of a thread; return a segptr to the first pushed byte */
148 static inline SEGPTR
stack16_push( int size
)
150 STACK16FRAME
*frame
= CURRENT_STACK16
;
151 memmove( (char*)frame
- size
, frame
, sizeof(*frame
) );
152 NtCurrentTeb()->WOW32Reserved
= (char *)NtCurrentTeb()->WOW32Reserved
- size
;
153 return (SEGPTR
)((char *)NtCurrentTeb()->WOW32Reserved
+ sizeof(*frame
));
156 /* pop bytes from the 16-bit stack of a thread */
157 static inline void stack16_pop( int size
)
159 STACK16FRAME
*frame
= CURRENT_STACK16
;
160 memmove( (char*)frame
+ size
, frame
, sizeof(*frame
) );
161 NtCurrentTeb()->WOW32Reserved
= (char *)NtCurrentTeb()->WOW32Reserved
+ size
;
165 extern NE_MODULE
*NE_GetPtr( HMODULE16 hModule
);
166 extern WORD
NE_GetOrdinal( HMODULE16 hModule
, const char *name
);
167 extern FARPROC16 WINAPI
NE_GetEntryPoint( HMODULE16 hModule
, WORD ordinal
);
168 extern FARPROC16
NE_GetEntryPointEx( HMODULE16 hModule
, WORD ordinal
, BOOL16 snoop
);
169 extern BOOL16
NE_SetEntryPoint( HMODULE16 hModule
, WORD ordinal
, WORD offset
);
170 extern DWORD
NE_StartTask(void);
173 extern BOOL
NE_LoadSegment( NE_MODULE
*pModule
, WORD segnum
);
174 extern BOOL
NE_LoadAllSegments( NE_MODULE
*pModule
);
175 extern BOOL
NE_CreateSegment( NE_MODULE
*pModule
, int segnum
);
176 extern BOOL
NE_CreateAllSegments( NE_MODULE
*pModule
);
177 extern HINSTANCE16
NE_GetInstance( NE_MODULE
*pModule
);
178 extern void NE_InitializeDLLs( HMODULE16 hModule
);
179 extern void NE_DllProcessAttach( HMODULE16 hModule
);
180 extern void NE_CallUserSignalProc( HMODULE16 hModule
, UINT16 code
);
183 extern WORD
SELECTOR_AllocBlock( const void *base
, DWORD size
, unsigned char flags
);
184 extern WORD
SELECTOR_ReallocBlock( WORD sel
, const void *base
, DWORD size
);
185 extern void SELECTOR_FreeBlock( WORD sel
);
186 #define IS_SELECTOR_32BIT(sel) \
187 (wine_ldt_is_system(sel) || (wine_ldt_copy.flags[LOWORD(sel) >> 3] & WINE_LDT_FLAGS_32BIT))
190 extern void SNOOP16_RegisterDLL(HMODULE16
,LPCSTR
);
191 extern FARPROC16
SNOOP16_GetProcAddress16(HMODULE16
,DWORD
,FARPROC16
);
192 extern int SNOOP16_ShowDebugmsgSnoop(const char *dll
,int ord
,const char *fname
);
195 extern void TASK_CreateMainTask(void);
196 extern HTASK16
TASK_SpawnTask( NE_MODULE
*pModule
, WORD cmdShow
,
197 LPCSTR cmdline
, BYTE len
, HANDLE
*hThread
);
198 extern void TASK_ExitTask(void);
199 extern HTASK16
TASK_GetTaskFromThread( DWORD thread
);
200 extern TDB
*TASK_GetCurrent(void);
201 extern void TASK_InstallTHHook( THHOOK
*pNewThook
);
203 #endif /* __WINE_KERNEL16_PRIVATE_H */