1 /*
2 * Definitions for the Wine library
3 *
4 * Copyright 2000 Alexandre Julliard
5 *
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.
10 *
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.
15 *
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #ifndef __WINE_WINE_LIBRARY_H
22 #define __WINE_WINE_LIBRARY_H
23
24 #include <stdarg.h>
25 #include <sys/types.h>
26
27 #include <windef.h>
28 #include <winbase.h>
29
30 #ifdef __WINE_WINE_TEST_H
31 #error This file should not be used in Wine tests
32 #endif
33
34 /* configuration */
35
36 extern const char *wine_get_build_dir(void);
37 extern const char *wine_get_config_dir(void);
38 extern const char *wine_get_data_dir(void);
39 extern const char *wine_get_server_dir(void);
40 extern const char *wine_get_user_name(void);
41 extern const char *wine_get_version(void);
42 extern const char *wine_get_build_id(void);
43 extern void wine_init_argv0_path( const char *argv0 );
44 extern void wine_exec_wine_binary( const char *name, char **argv, const char *env_var );
45
46 /* dll loading */
47
48 typedef void (*load_dll_callback_t)( void *, const char * );
49
50 extern void *wine_dlopen( const char *filename, int flag, char *error, size_t errorsize );
51 extern void *wine_dlsym( void *handle, const char *symbol, char *error, size_t errorsize );
52 extern int wine_dlclose( void *handle, char *error, size_t errorsize );
53 extern void wine_dll_set_callback( load_dll_callback_t load );
54 extern void *wine_dll_load( const char *filename, char *error, int errorsize, int *file_exists );
55 extern void *wine_dll_load_main_exe( const char *name, char *error, int errorsize,
56 int test_only, int *file_exists );
57 extern void wine_dll_unload( void *handle );
58 extern const char *wine_dll_enum_load_path( unsigned int index );
59 extern int wine_dll_get_owner( const char *name, char *buffer, int size, int *file_exists );
60
61 extern int __wine_main_argc;
62 extern char **__wine_main_argv;
63 extern WCHAR **__wine_main_wargv;
64 extern char **__wine_main_environ;
65 extern void __wine_dll_register( const IMAGE_NT_HEADERS *header, const char *filename );
66 extern void wine_init( int argc, char *argv[], char *error, int error_size );
67
68 /* portability */
69
70 extern void DECLSPEC_NORETURN wine_switch_to_stack( void (*func)(void *), void *arg, void *stack );
71 extern int wine_call_on_stack( int (*func)(void *), void *arg, void *stack );
72 extern void wine_set_pe_load_area( void *base, size_t size );
73 extern void wine_free_pe_load_area(void);
74
75 /* memory mappings */
76
77 extern void *wine_anon_mmap( void *start, size_t size, int prot, int flags );
78 extern void wine_mmap_add_reserved_area( void *addr, size_t size );
79 extern void wine_mmap_remove_reserved_area( void *addr, size_t size, int unmap );
80 extern int wine_mmap_is_in_reserved_area( void *addr, size_t size );
81 extern int wine_mmap_enum_reserved_areas( int (*enum_func)(void *base, size_t size, void *arg),
82 void *arg, int top_down );
83
84 /* LDT management */
85
86 extern void wine_ldt_init_locking( void (*lock_func)(void), void (*unlock_func)(void) );
87 extern void wine_ldt_get_entry( unsigned short sel, LDT_ENTRY *entry );
88 extern int wine_ldt_set_entry( unsigned short sel, const LDT_ENTRY *entry );
89 extern int wine_ldt_is_system( unsigned short sel );
90 extern void *wine_ldt_get_ptr( unsigned short sel, unsigned long offset );
91 extern unsigned short wine_ldt_alloc_entries( int count );
92 extern unsigned short wine_ldt_realloc_entries( unsigned short sel, int oldcount, int newcount );
93 extern void wine_ldt_free_entries( unsigned short sel, int count );
94 #ifdef __i386__
95 extern unsigned short wine_ldt_alloc_fs(void);
96 extern void wine_ldt_init_fs( unsigned short sel, const LDT_ENTRY *entry );
97 extern void wine_ldt_free_fs( unsigned short sel );
98 #else /* __i386__ */
99 static inline unsigned short wine_ldt_alloc_fs(void) { return 0x0b; /* pseudo GDT selector */ }
100 static inline void wine_ldt_init_fs( unsigned short sel, const LDT_ENTRY *entry ) { }
101 static inline void wine_ldt_free_fs( unsigned short sel ) { }
102 #endif /* __i386__ */
103
104
105 /* the local copy of the LDT */
106 #ifdef __CYGWIN__
107 # ifdef WINE_EXPORT_LDT_COPY
108 # define WINE_LDT_EXTERN __declspec(dllexport)
109 # else
110 # define WINE_LDT_EXTERN __declspec(dllimport)
111 # endif
112 #else
113 # define WINE_LDT_EXTERN extern
114 #endif
115
116 WINE_LDT_EXTERN struct __wine_ldt_copy
117 {
118 void *base[8192]; /* base address or 0 if entry is free */
119 unsigned long limit[8192]; /* limit in bytes or 0 if entry is free */
120 unsigned char flags[8192]; /* flags (defined below) */
121 } wine_ldt_copy;
122
123 #define WINE_LDT_FLAGS_DATA 0x13 /* Data segment */
124 #define WINE_LDT_FLAGS_STACK 0x17 /* Stack segment */
125 #define WINE_LDT_FLAGS_CODE 0x1b /* Code segment */
126 #define WINE_LDT_FLAGS_TYPE_MASK 0x1f /* Mask for segment type */
127 #define WINE_LDT_FLAGS_32BIT 0x40 /* Segment is 32-bit (code or stack) */
128 #define WINE_LDT_FLAGS_ALLOCATED 0x80 /* Segment is allocated (no longer free) */
129
130 /* helper functions to manipulate the LDT_ENTRY structure */
131 static inline void wine_ldt_set_base( LDT_ENTRY *ent, const void *base )
132 {
133 ent->BaseLow = (WORD)(unsigned long)base;
134 ent->HighWord.Bits.BaseMid = (BYTE)((unsigned long)base >> 16);
135 ent->HighWord.Bits.BaseHi = (BYTE)((unsigned long)base >> 24);
136 }
137 static inline void wine_ldt_set_limit( LDT_ENTRY *ent, unsigned int limit )
138 {
139 if ((ent->HighWord.Bits.Granularity = (limit >= 0x100000))) limit >>= 12;
140 ent->LimitLow = (WORD)limit;
141 ent->HighWord.Bits.LimitHi = (limit >> 16);
142 }
143 static inline void *wine_ldt_get_base( const LDT_ENTRY *ent )
144 {
145 return (void *)(ent->BaseLow |
146 (unsigned long)ent->HighWord.Bits.BaseMid << 16 |
147 (unsigned long)ent->HighWord.Bits.BaseHi << 24);
148 }
149 static inline unsigned int wine_ldt_get_limit( const LDT_ENTRY *ent )
150 {
151 unsigned int limit = ent->LimitLow | (ent->HighWord.Bits.LimitHi << 16);
152 if (ent->HighWord.Bits.Granularity) limit = (limit << 12) | 0xfff;
153 return limit;
154 }
155 static inline void wine_ldt_set_flags( LDT_ENTRY *ent, unsigned char flags )
156 {
157 ent->HighWord.Bits.Dpl = 3;
158 ent->HighWord.Bits.Pres = 1;
159 ent->HighWord.Bits.Type = flags;
160 ent->HighWord.Bits.Sys = 0;
161 ent->HighWord.Bits.Reserved_0 = 0;
162 ent->HighWord.Bits.Default_Big = (flags & WINE_LDT_FLAGS_32BIT) != 0;
163 }
164 static inline unsigned char wine_ldt_get_flags( const LDT_ENTRY *ent )
165 {
166 unsigned char ret = ent->HighWord.Bits.Type;
167 if (ent->HighWord.Bits.Default_Big) ret |= WINE_LDT_FLAGS_32BIT;
168 return ret;
169 }
170 static inline int wine_ldt_is_empty( const LDT_ENTRY *ent )
171 {
172 const DWORD *dw = (const DWORD *)ent;
173 return (dw[0] | dw[1]) == 0;
174 }
175
176 /* segment register access */
177
178 #ifdef __i386__
179 # ifdef __GNUC__
180 # define __DEFINE_GET_SEG(seg) \
181 extern inline unsigned short wine_get_##seg(void); \
182 extern inline unsigned short wine_get_##seg(void) \
183 { unsigned short res; __asm__ __volatile__("movw %%" #seg ",%w0" : "=r"(res)); return res; }
184 # define __DEFINE_SET_SEG(seg) \
185 extern inline void wine_set_##seg(int val); \
186 extern inline void wine_set_##seg(int val) { __asm__("movw %w0,%%" #seg : : "r" (val)); }
187 # elif defined(_MSC_VER)
188 # define __DEFINE_GET_SEG(seg) \
189 extern inline unsigned short wine_get_##seg(void); \
190 extern inline unsigned short wine_get_##seg(void) \
191 { unsigned short res; __asm { mov res, seg } return res; }
192 # define __DEFINE_SET_SEG(seg) \
193 extern inline void wine_set_##seg(unsigned short val); \
194 extern inline void wine_set_##seg(unsigned short val) { __asm { mov seg, val } }
195 # else /* __GNUC__ || _MSC_VER */
196 # define __DEFINE_GET_SEG(seg) extern unsigned short wine_get_##seg(void);
197 # define __DEFINE_SET_SEG(seg) extern void wine_set_##seg(unsigned int);
198 # endif /* __GNUC__ || _MSC_VER */
199 #else /* __i386__ */
200 # define __DEFINE_GET_SEG(seg) static inline unsigned short wine_get_##seg(void) { return 0; }
201 # define __DEFINE_SET_SEG(seg) static inline void wine_set_##seg(int val) { /* nothing */ }
202 #endif /* __i386__ */
203
204 __DEFINE_GET_SEG(cs)
205 __DEFINE_GET_SEG(ds)
206 __DEFINE_GET_SEG(es)
207 __DEFINE_GET_SEG(fs)
208 __DEFINE_GET_SEG(gs)
209 __DEFINE_GET_SEG(ss)
210 __DEFINE_SET_SEG(fs)
211 __DEFINE_SET_SEG(gs)
212 #undef __DEFINE_GET_SEG
213 #undef __DEFINE_SET_SEG
214
215 #endif /* __WINE_WINE_LIBRARY_H */
216
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