include/module.h

   1 /*
   2  * Module definitions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #ifndef _WINE_MODULE_H
   8 #define _WINE_MODULE_H
   9
  10 #include "wintypes.h"
  11 #include "pe_image.h"
  12
  13   /* In-memory module structure. See 'Windows Internals' p. 219 */
  14 typedef struct
  15 {
  16     WORD    magic;            /* 00 'NE' signature */
  17     WORD    count;            /* 02 Usage count */
  18     WORD    entry_table;      /* 04 Near ptr to entry table */
  19     HMODULE16  next;          /* 06 Selector to next module */
  20     WORD    dgroup_entry;     /* 08 Near ptr to segment entry for DGROUP */
  21     WORD    fileinfo;         /* 0a Near ptr to file info (OFSTRUCT) */
  22     WORD    flags;            /* 0c Module flags */
  23     WORD    dgroup;           /* 0e Logical segment for DGROUP */
  24     WORD    heap_size;        /* 10 Initial heap size */
  25     WORD    stack_size;       /* 12 Initial stack size */
  26     WORD    ip;               /* 14 Initial ip */
  27     WORD    cs;               /* 16 Initial cs (logical segment) */
  28     WORD    sp;               /* 18 Initial stack pointer */
  29     WORD    ss;               /* 1a Initial ss (logical segment) */
  30     WORD    seg_count;        /* 1c Number of segments in segment table */
  31     WORD    modref_count;     /* 1e Number of module references */
  32     WORD    nrname_size;      /* 20 Size of non-resident names table */
  33     WORD    seg_table;        /* 22 Near ptr to segment table */
  34     WORD    res_table;        /* 24 Near ptr to resource table */
  35     WORD    name_table;       /* 26 Near ptr to resident names table */
  36     WORD    modref_table;     /* 28 Near ptr to module reference table */
  37     WORD    import_table;     /* 2a Near ptr to imported names table */
  38     DWORD   nrname_fpos;      /* 2c File offset of non-resident names table */
  39     WORD    moveable_entries; /* 30 Number of moveable entries in entry table*/
  40     WORD    alignment;        /* 32 Alignment shift count */
  41     WORD    truetype;         /* 34 Set to 2 if TrueType font */
  42     BYTE    os_flags;         /* 36 Operating system flags */
  43     BYTE    misc_flags;       /* 37 Misc. flags */
  44     HANDLE16   dlls_to_init;  /* 38 List of DLLs to initialize */
  45     HANDLE16   nrname_handle; /* 3a Handle to non-resident name table */
  46     WORD    min_swap_area;    /* 3c Min. swap area size */
  47     WORD    expected_version; /* 3e Expected Windows version */
  48     /* From here, these are extra fields not present in normal Windows */
  49     PE_MODULE *pe_module;     /* 40 PE module handle for Win32 modules */
  50     HMODULE16  self;          /* 44 Handle for this module */
  51     WORD    self_loading_sel; /* 46 Selector used for self-loading apps. */
  52 } NE_MODULE;
  53
  54
  55   /* In-memory segment table */
  56 typedef struct
  57 {
  58     WORD      filepos;   /* Position in file, in sectors */
  59     WORD      size;      /* Segment size on disk */
  60     WORD      flags;     /* Segment flags */
  61     WORD      minsize;   /* Min. size of segment in memory */
  62     HANDLE16  selector;  /* Selector of segment in memory */
  63 } SEGTABLEENTRY;
  64
  65
  66   /* Self-loading modules contain this structure in their first segment */
  67
  68 typedef struct
  69 {
  70     WORD      version;       /* Must be 0xA0 */
  71     WORD      reserved;
  72     FARPROC16 BootApp;       /* startup procedure */
  73     FARPROC16 LoadAppSeg;    /* procedure to load a segment */
  74     FARPROC16 reserved2;
  75     FARPROC16 MyAlloc;       /* memory allocation procedure,
  76                               * wine must write this field */
  77     FARPROC16 EntryAddrProc;
  78     FARPROC16 ExitProc;      /* exit procedure */
  79     WORD      reserved3[4];
  80     FARPROC16 SetOwner;      /* Set Owner procedure, exported by wine */
  81 } SELFLOADHEADER;
  82
  83 #pragma pack(1)
  84
  85   /* Parameters for LoadModule() */
  86 typedef struct
  87 {
  88     HANDLE16 hEnvironment;         /* Environment segment */
  89     SEGPTR   cmdLine WINE_PACKED;  /* Command-line */
  90     SEGPTR   showCmd WINE_PACKED;  /* Code for ShowWindow() */
  91     SEGPTR   reserved WINE_PACKED;
  92 } LOADPARAMS;
  93
  94 #pragma pack(4)
  95
  96 /* Resource types */
  97 typedef struct resource_typeinfo_s NE_TYPEINFO;
  98 typedef struct resource_nameinfo_s NE_NAMEINFO;
  99
 100 #define NE_SEG_TABLE(pModule) \
 101     ((SEGTABLEENTRY *)((char *)(pModule) + (pModule)->seg_table))
 102
 103 #define NE_MODULE_TABLE(pModule) \
 104     ((WORD *)((char *)(pModule) + (pModule)->modref_table))
 105
 106 #define NE_MODULE_NAME(pModule) \
 107     (((OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo))->szPathName)
 108
 109 #define NE_WIN32_MODULE(pModule) \
 110     ((struct pe_data *)(((pModule)->flags & NE_FFLAGS_WIN32) ? \
 111                     ((NE_WIN32_EXTRAINFO *)((pModule) + 1))->pe_module : 0))
 112
 113 /* module.c */
 114 extern NE_MODULE *MODULE_GetPtr( HMODULE16 hModule );
 115 extern void MODULE_DumpModule( HMODULE16 hmodule );
 116 extern void MODULE_WalkModules(void);
 117 extern int MODULE_OpenFile( HMODULE16 hModule );
 118 extern LPSTR MODULE_GetModuleName( HMODULE16 hModule );
 119 extern void MODULE_RegisterModule( NE_MODULE *pModule );
 120 extern HMODULE16 MODULE_FindModule( LPCSTR path );
 121 extern HINSTANCE16 MODULE_GetInstance( HMODULE16 hModule );
 122 extern HMODULE16 MODULE_CreateDummyModule( const OFSTRUCT *ofs );
 123 extern WORD MODULE_GetOrdinal( HMODULE16 hModule, const char *name );
 124 extern FARPROC16 MODULE_GetEntryPoint( HMODULE16 hModule, WORD ordinal );
 125 extern BOOL16 MODULE_SetEntryPoint( HMODULE16 hModule, WORD ordinal,
 126                                     WORD offset );
 127 extern FARPROC16 MODULE_GetWndProcEntry16( const char *name );
 128
 129 /* builtin.c */
 130 extern BOOL16 BUILTIN_Init(void);
 131 extern HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL16 force );
 132 extern LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd );
 133 extern LPCSTR BUILTIN_GetEntryPoint32( void *relay );
 134 extern FARPROC32 BUILTIN_GetProcAddress32(NE_MODULE *pModule, LPCSTR function);
 135 extern BOOL16 BUILTIN_ParseDLLOptions( const char *str );
 136 extern void BUILTIN_PrintDLLs(void);
 137
 138 /* ne_image.c */
 139 extern BOOL16 NE_LoadSegment( HMODULE16 hModule, WORD segnum );
 140 extern void NE_FixupPrologs( NE_MODULE *pModule );
 141 extern void NE_InitializeDLLs( HMODULE16 hModule );
 142
 143 #endif  /* _WINE_MODULE_H */