Sweden-Number/dlls/krnl386.exe16/kernel16_private.h

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/*
* Kernel 16-bit private definitions
*
* Copyright 1995 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __WINE_KERNEL16_PRIVATE_H
#define __WINE_KERNEL16_PRIVATE_H
#include "wine/winbase16.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/asm.h"
#include "pshpack1.h"
/* In-memory module structure. See 'Windows Internals' p. 219 */
typedef struct _NE_MODULE
{
WORD ne_magic; /* 00 'NE' signature */
WORD count; /* 02 Usage count (ne_ver/ne_rev on disk) */
WORD ne_enttab; /* 04 Near ptr to entry table */
HMODULE16 next; /* 06 Selector to next module (ne_cbenttab on disk) */
WORD dgroup_entry; /* 08 Near ptr to segment entry for DGROUP (ne_crc on disk) */
WORD fileinfo; /* 0a Near ptr to file info (OFSTRUCT) (ne_crc on disk) */
WORD ne_flags; /* 0c Module flags */
WORD ne_autodata; /* 0e Logical segment for DGROUP */
WORD ne_heap; /* 10 Initial heap size */
WORD ne_stack; /* 12 Initial stack size */
DWORD ne_csip; /* 14 Initial cs:ip */
DWORD ne_sssp; /* 18 Initial ss:sp */
WORD ne_cseg; /* 1c Number of segments in segment table */
WORD ne_cmod; /* 1e Number of module references */
WORD ne_cbnrestab; /* 20 Size of non-resident names table */
WORD ne_segtab; /* 22 Near ptr to segment table */
WORD ne_rsrctab; /* 24 Near ptr to resource table */
WORD ne_restab; /* 26 Near ptr to resident names table */
WORD ne_modtab; /* 28 Near ptr to module reference table */
WORD ne_imptab; /* 2a Near ptr to imported names table */
DWORD ne_nrestab; /* 2c File offset of non-resident names table */
WORD ne_cmovent; /* 30 Number of moveable entries in entry table*/
WORD ne_align; /* 32 Alignment shift count */
WORD ne_cres; /* 34 # of resource segments */
BYTE ne_exetyp; /* 36 Operating system flags */
BYTE ne_flagsothers; /* 37 Misc. flags */
HANDLE16 dlls_to_init; /* 38 List of DLLs to initialize (ne_pretthunks on disk) */
HANDLE16 nrname_handle; /* 3a Handle to non-resident name table (ne_psegrefbytes on disk) */
WORD ne_swaparea; /* 3c Min. swap area size */
WORD ne_expver; /* 3e Expected Windows version */
/* From here, these are extra fields not present in normal Windows */
HMODULE module32; /* PE module handle for Win32 modules */
HMODULE owner32; /* PE module containing this one for 16-bit builtins */
HMODULE16 self; /* Handle for this module */
WORD self_loading_sel; /* Selector used for self-loading apps. */
LPVOID rsrc32_map; /* HRSRC 16->32 map (for 32-bit modules) */
LPCVOID mapping; /* mapping of the binary file */
SIZE_T mapping_size; /* size of the file mapping */
} NE_MODULE;
typedef struct
{
BYTE type;
BYTE flags;
BYTE segnum;
WORD offs;
} ET_ENTRY;
typedef struct
{
WORD first; /* ordinal */
WORD last; /* ordinal */
WORD next; /* bundle */
} ET_BUNDLE;
/* In-memory segment table */
typedef struct
{
WORD filepos; /* Position in file, in sectors */
WORD size; /* Segment size on disk */
WORD flags; /* Segment flags */
WORD minsize; /* Min. size of segment in memory */
HANDLE16 hSeg; /* Selector or handle (selector - 1) of segment in memory */
} SEGTABLEENTRY;
/* this structure is always located at offset 0 of the DGROUP segment */
typedef struct
{
WORD null; /* Always 0 */
WORD old_sp; /* Stack pointer; used by SwitchTaskTo() */
WORD old_ss;
WORD heap; /* Pointer to the local heap information (if any) */
WORD atomtable; /* Pointer to the local atom table (if any) */
WORD stacktop; /* Top of the stack */
WORD stackmin; /* Lowest stack address used so far */
WORD stackbottom; /* Bottom of the stack */
} INSTANCEDATA;
/* relay entry points */
typedef struct
{
WORD pushw_bp; /* pushw %bp */
BYTE pushl; /* pushl $target */
void *target;
WORD call; /* call CALLFROM16 */
short callfrom16;
} ENTRYPOINT16;
typedef struct
{
BYTE pushl; /* pushl $relay */
void *relay;
BYTE lcall; /* lcall __FLATCS__:glue */
void *glue;
WORD flatcs;
WORD ret[5]; /* return sequence */
WORD movl; /* movl arg_types[1],arg_types[0](%esi) */
DWORD arg_types[2]; /* type of each argument */
} CALLFROM16;
/* THHOOK Kernel Data Structure */
typedef struct _THHOOK
{
HANDLE16 hGlobalHeap; /* 00 (handle BURGERMASTER) */
WORD pGlobalHeap; /* 02 (selector BURGERMASTER) */
HMODULE16 hExeHead; /* 04 hFirstModule */
HMODULE16 hExeSweep; /* 06 (unused) */
HANDLE16 TopPDB; /* 08 (handle of KERNEL PDB) */
HANDLE16 HeadPDB; /* 0A (first PDB in list) */
HANDLE16 TopSizePDB; /* 0C (unused) */
HTASK16 HeadTDB; /* 0E hFirstTask */
HTASK16 CurTDB; /* 10 hCurrentTask */
HTASK16 LoadTDB; /* 12 (unused) */
HTASK16 LockTDB; /* 14 hLockedTask */
} THHOOK;
extern LONG __wine_call_from_16(void);
extern void __wine_call_from_16_regs(void);
extern THHOOK *pThhook DECLSPEC_HIDDEN;
#include "poppack.h"
#define NE_SEG_TABLE(pModule) \
((SEGTABLEENTRY *)((char *)(pModule) + (pModule)->ne_segtab))
#define NE_MODULE_NAME(pModule) \
(((OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo))->szPathName)
#define NE_GET_DATA(pModule,offset,size) \
((const void *)(((offset)+(size) <= pModule->mapping_size) ? \
(const char *)pModule->mapping + (offset) : NULL))
#define NE_READ_DATA(pModule,buffer,offset,size) \
(((offset)+(size) <= pModule->mapping_size) ? \
(memcpy( buffer, (const char *)pModule->mapping + (offset), (size) ), TRUE) : FALSE)
/* push bytes on the 16-bit stack of a thread; return a segptr to the first pushed byte */
static inline SEGPTR stack16_push( int size )
{
STACK16FRAME *frame = CURRENT_STACK16;
memmove( (char*)frame - size, frame, sizeof(*frame) );
CURRENT_SP -= size;
return MAKESEGPTR( CURRENT_SS, CURRENT_SP + sizeof(*frame) );
}
/* pop bytes from the 16-bit stack of a thread */
static inline void stack16_pop( int size )
{
STACK16FRAME *frame = CURRENT_STACK16;
memmove( (char*)frame + size, frame, sizeof(*frame) );
CURRENT_SP += size;
}
/* dosmem.c */
extern BOOL DOSMEM_Init(void) DECLSPEC_HIDDEN;
extern BOOL DOSMEM_InitDosMemory(void) DECLSPEC_HIDDEN;
extern LPVOID DOSMEM_MapRealToLinear(DWORD) DECLSPEC_HIDDEN; /* real-mode to linear */
extern LPVOID DOSMEM_MapDosToLinear(UINT) DECLSPEC_HIDDEN; /* linear DOS to Wine */
extern UINT DOSMEM_MapLinearToDos(LPVOID) DECLSPEC_HIDDEN; /* linear Wine to DOS */
extern BOOL DOSMEM_MapDosLayout(void) DECLSPEC_HIDDEN;
extern LPVOID DOSMEM_AllocBlock(UINT size, WORD* p) DECLSPEC_HIDDEN;
extern BOOL DOSMEM_FreeBlock(void* ptr) DECLSPEC_HIDDEN;
extern UINT DOSMEM_ResizeBlock(void* ptr, UINT size, BOOL exact) DECLSPEC_HIDDEN;
extern UINT DOSMEM_Available(void) DECLSPEC_HIDDEN;
/* global16.c */
extern HGLOBAL16 GLOBAL_CreateBlock( UINT16 flags, void *ptr, DWORD size,
HGLOBAL16 hOwner, unsigned char selflags ) DECLSPEC_HIDDEN;
extern BOOL16 GLOBAL_FreeBlock( HGLOBAL16 handle ) DECLSPEC_HIDDEN;
extern BOOL16 GLOBAL_MoveBlock( HGLOBAL16 handle, void *ptr, DWORD size ) DECLSPEC_HIDDEN;
extern HGLOBAL16 GLOBAL_Alloc( WORD flags, DWORD size, HGLOBAL16 hOwner, unsigned char selflags ) DECLSPEC_HIDDEN;
/* instr.c */
extern DWORD __wine_emulate_instruction( EXCEPTION_RECORD *rec, CONTEXT *context ) DECLSPEC_HIDDEN;
extern LONG CALLBACK INSTR_vectored_handler( EXCEPTION_POINTERS *ptrs ) DECLSPEC_HIDDEN;
/* ne_module.c */
extern NE_MODULE *NE_GetPtr( HMODULE16 hModule ) DECLSPEC_HIDDEN;
extern WORD NE_GetOrdinal( HMODULE16 hModule, const char *name ) DECLSPEC_HIDDEN;
extern FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal ) DECLSPEC_HIDDEN;
extern FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop ) DECLSPEC_HIDDEN;
extern BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset ) DECLSPEC_HIDDEN;
extern DWORD NE_StartTask(void) DECLSPEC_HIDDEN;
/* ne_segment.c */
extern BOOL NE_LoadSegment( NE_MODULE *pModule, WORD segnum ) DECLSPEC_HIDDEN;
extern BOOL NE_LoadAllSegments( NE_MODULE *pModule ) DECLSPEC_HIDDEN;
extern BOOL NE_CreateSegment( NE_MODULE *pModule, int segnum ) DECLSPEC_HIDDEN;
extern BOOL NE_CreateAllSegments( NE_MODULE *pModule ) DECLSPEC_HIDDEN;
extern HINSTANCE16 NE_GetInstance( NE_MODULE *pModule ) DECLSPEC_HIDDEN;
extern void NE_InitializeDLLs( HMODULE16 hModule ) DECLSPEC_HIDDEN;
extern void NE_DllProcessAttach( HMODULE16 hModule ) DECLSPEC_HIDDEN;
extern void NE_CallUserSignalProc( HMODULE16 hModule, UINT16 code ) DECLSPEC_HIDDEN;
/* selector.c */
#define LDT_SIZE 8192
struct ldt_copy
{
void *base[LDT_SIZE];
unsigned int limit[LDT_SIZE];
unsigned char flags[LDT_SIZE];
};
extern const struct ldt_copy *ldt_copy DECLSPEC_HIDDEN;
#define LDT_FLAGS_DATA 0x13 /* Data segment */
#define LDT_FLAGS_CODE 0x1b /* Code segment */
#define LDT_FLAGS_32BIT 0x40 /* Segment is 32-bit (code or stack) */
static inline void *ldt_get_base( WORD sel ) { return ldt_copy->base[sel >> 3]; }
static inline unsigned int ldt_get_limit( WORD sel ) { return ldt_copy->limit[sel >> 3]; }
static inline unsigned char ldt_get_flags( WORD sel ) { return ldt_copy->flags[sel >> 3]; }
extern void init_selectors(void) DECLSPEC_HIDDEN;
extern BOOL ldt_is_system( WORD sel ) DECLSPEC_HIDDEN;
extern BOOL ldt_is_valid( WORD sel ) DECLSPEC_HIDDEN;
extern void *ldt_get_ptr( WORD sel, DWORD offset ) DECLSPEC_HIDDEN;
extern BOOL ldt_get_entry( WORD sel, LDT_ENTRY *entry ) DECLSPEC_HIDDEN;
extern void ldt_set_entry( WORD sel, LDT_ENTRY entry ) DECLSPEC_HIDDEN;
extern WORD SELECTOR_AllocBlock( const void *base, DWORD size, unsigned char flags ) DECLSPEC_HIDDEN;
extern WORD SELECTOR_ReallocBlock( WORD sel, const void *base, DWORD size ) DECLSPEC_HIDDEN;
extern void SELECTOR_FreeBlock( WORD sel ) DECLSPEC_HIDDEN;
#define IS_SELECTOR_32BIT(sel) \
(ldt_is_system(sel) || (ldt_copy->flags[LOWORD(sel) >> 3] & LDT_FLAGS_32BIT))
static inline WORD get_cs(void) { WORD res; __asm__( "movw %%cs,%0" : "=r" (res) ); return res; }
static inline WORD get_ds(void) { WORD res; __asm__( "movw %%ds,%0" : "=r" (res) ); return res; }
static inline WORD get_fs(void) { WORD res; __asm__( "movw %%fs,%0" : "=r" (res) ); return res; }
static inline WORD get_gs(void) { WORD res; __asm__( "movw %%gs,%0" : "=r" (res) ); return res; }
/* relay16.c */
extern int relay_call_from_16( void *entry_point, unsigned char *args16, CONTEXT *context ) DECLSPEC_HIDDEN;
extern void RELAY16_InitDebugLists(void) DECLSPEC_HIDDEN;
/* snoop16.c */
extern void SNOOP16_RegisterDLL(HMODULE16,LPCSTR) DECLSPEC_HIDDEN;
extern FARPROC16 SNOOP16_GetProcAddress16(HMODULE16,DWORD,FARPROC16) DECLSPEC_HIDDEN;
extern BOOL SNOOP16_ShowDebugmsgSnoop(const char *dll,int ord,const char *fname) DECLSPEC_HIDDEN;
/* syslevel.c */
extern VOID SYSLEVEL_CheckNotLevel( INT level ) DECLSPEC_HIDDEN;
/* task.c */
extern void TASK_CreateMainTask(void) DECLSPEC_HIDDEN;
extern HTASK16 TASK_SpawnTask( NE_MODULE *pModule, WORD cmdShow,
LPCSTR cmdline, BYTE len, HANDLE *hThread ) DECLSPEC_HIDDEN;
extern void TASK_ExitTask(void) DECLSPEC_HIDDEN;
extern HTASK16 TASK_GetTaskFromThread( DWORD thread ) DECLSPEC_HIDDEN;
extern TDB *TASK_GetCurrent(void) DECLSPEC_HIDDEN;
extern void TASK_InstallTHHook( THHOOK *pNewThook ) DECLSPEC_HIDDEN;
extern BOOL WOWTHUNK_Init(void) DECLSPEC_HIDDEN;
extern WORD DOSMEM_0000H DECLSPEC_HIDDEN;
extern WORD DOSMEM_BiosDataSeg DECLSPEC_HIDDEN;
extern WORD DOSMEM_BiosSysSeg DECLSPEC_HIDDEN;
extern DWORD CallTo16_DataSelector DECLSPEC_HIDDEN;
extern DWORD CallTo16_TebSelector DECLSPEC_HIDDEN;
extern SEGPTR CALL32_CBClient_RetAddr DECLSPEC_HIDDEN;
extern SEGPTR CALL32_CBClientEx_RetAddr DECLSPEC_HIDDEN;
struct tagSYSLEVEL;
struct kernel_thread_data
{
SEGPTR stack; /* 16-bit stack pointer */
WORD stack_sel; /* 16-bit stack selector */
WORD htask16; /* Win16 task handle */
DWORD sys_count[4]; /* syslevel mutex entry counters */
struct tagSYSLEVEL *sys_mutex[4]; /* syslevel mutex pointers */
};
C_ASSERT( sizeof(struct kernel_thread_data) <= sizeof(((TEB *)0)->SystemReserved1) );
static inline struct kernel_thread_data *kernel_get_thread_data(void)
{
return (struct kernel_thread_data *)NtCurrentTeb()->SystemReserved1;
}
/* Push a DWORD on the 32-bit stack */
static inline void stack32_push( CONTEXT *context, DWORD val )
{
context->Esp -= sizeof(DWORD);
*(DWORD *)context->Esp = val;
}
/* Pop a DWORD from the 32-bit stack */
static inline DWORD stack32_pop( CONTEXT *context )
{
DWORD ret = *(DWORD *)context->Esp;
context->Esp += sizeof(DWORD);
return ret;
}
#define DEFINE_REGS_ENTRYPOINT(name) \
__ASM_STDCALL_FUNC( name, 0, \
"pushl %ebp\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t") \
__ASM_CFI(".cfi_rel_offset %ebp,0\n\t") \
"movl %esp,%ebp\n\t" \
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t") \
"leal -(0x2cc+4)(%esp),%esp\n\t" /* sizeof(CONTEXT) + space for %eax */ \
"movl %eax,-4(%ebp)\n\t" \
"pushl %esp\n\t" /* context */ \
"call " __ASM_STDCALL("RtlCaptureContext",4) "\n\t" \
"movl -4(%ebp),%eax\n\t" \
"movl %eax,0xb0(%esp)\n\t" /* context->Eax */ \
"pushl %esp\n\t" /* context */ \
"call " __ASM_STDCALL("__regs_" #name,4) "\n\t" \
"pushl %esp\n\t" /* context */ \
"pushl $-2\n\t" /* GetCurrentThread() */ \
"call " __ASM_STDCALL("NtSetContextThread",8) "\n\t" \
"ret" ) /* fake ret to make copy protections happy */
#endif /* __WINE_KERNEL16_PRIVATE_H */