/* * 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 */ DWORD old_ss_sp; /* Stack pointer; used by SwitchTaskTo() */ 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) #define CURRENT_STACK16 ((STACK16FRAME*)MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved))) #define CURRENT_DS (CURRENT_STACK16->ds) /* 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) ); NtCurrentTeb()->WOW32Reserved = (char *)NtCurrentTeb()->WOW32Reserved - size; return (SEGPTR)((char *)NtCurrentTeb()->WOW32Reserved + 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) ); NtCurrentTeb()->WOW32Reserved = (char *)NtCurrentTeb()->WOW32Reserved + 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 { 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 */ void *pad[45]; /* change this if you add fields! */ }; 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 */