dlls/msvcp90/cxx.h

   1 /*
   2  * Copyright 2012 Piotr Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 /* Copied from dlls/msvcrt/cxx.h */
  20 #undef __thiscall
  21 #ifdef __i386__  /* thiscall functions are i386-specific */
  22
  23 #define THISCALL(func) __thiscall_ ## func
  24 #define THISCALL_NAME(func) __ASM_NAME("__thiscall_" #func)
  25 #define __thiscall __stdcall
  26 #define DEFINE_THISCALL_WRAPPER(func,args) \
  27     extern void THISCALL(func)(void); \
  28     __ASM_GLOBAL_FUNC(__thiscall_ ## func, \
  29                       "popl %eax\n\t" \
  30                       "pushl %ecx\n\t" \
  31                       "pushl %eax\n\t" \
  32                       "jmp " __ASM_NAME(#func) __ASM_STDCALL(args) )
  33 #else /* __i386__ */
  34
  35 #define THISCALL(func) func
  36 #define THISCALL_NAME(func) __ASM_NAME(#func)
  37 #define __thiscall __cdecl
  38 #define DEFINE_THISCALL_WRAPPER(func,args) /* nothing */
  39
  40 #endif /* __i386__ */
  41
  42 #ifdef _WIN64
  43
  44 #define VTABLE_ADD_FUNC(name) "\t.quad " THISCALL_NAME(name) "\n"
  45
  46 #define __ASM_VTABLE(name,funcs) \
  47     __asm__(".data\n" \
  48             "\t.align 8\n" \
  49             "\t.quad " __ASM_NAME(#name "_rtti") "\n" \
  50             "\t.globl " __ASM_NAME("MSVCP_" #name "_vtable") "\n" \
  51             __ASM_NAME("MSVCP_" #name "_vtable") ":\n" \
  52             funcs "\n\t.text")
  53
  54 #else
  55
  56 #define VTABLE_ADD_FUNC(name) "\t.long " THISCALL_NAME(name) "\n"
  57
  58 #define __ASM_VTABLE(name,funcs) \
  59     __asm__(".data\n" \
  60             "\t.align 4\n" \
  61             "\t.long " __ASM_NAME(#name "_rtti") "\n" \
  62             "\t.globl " __ASM_NAME("MSVCP_" #name "_vtable") "\n" \
  63             __ASM_NAME("MSVCP_" #name "_vtable") ":\n" \
  64             funcs "\n\t.text")
  65
  66 #endif /* _WIN64 */
  67
  68 #ifndef __x86_64__
  69
  70 #define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
  71     static const type_info name ## _type_info = { \
  72         &MSVCP_type_info_vtable, \
  73         NULL, \
  74         mangled_name \
  75     }; \
  76 \
  77 static const rtti_base_descriptor name ## _rtti_base_descriptor = { \
  78     &name ##_type_info, \
  79     base_classes_no, \
  80     { 0, -1, 0}, \
  81     64 \
  82 }; \
  83 \
  84 static const rtti_base_array name ## _rtti_base_array = { \
  85     { \
  86         &name ## _rtti_base_descriptor, \
  87         cl1, \
  88         cl2, \
  89         cl3, \
  90         cl4, \
  91         cl5, \
  92         cl6, \
  93         cl7, \
  94         cl8, \
  95         cl9, \
  96     } \
  97 }; \
  98 \
  99 static const rtti_object_hierarchy name ## _hierarchy = { \
 100     0, \
 101     0, \
 102     base_classes_no+1, \
 103     &name ## _rtti_base_array \
 104 }; \
 105 \
 106 const rtti_object_locator name ## _rtti = { \
 107     0, \
 108     off, \
 109     0, \
 110     &name ## _type_info, \
 111     &name ## _hierarchy \
 112 };
 113
 114 #define DEFINE_CXX_DATA(type, base_no, cl1, cl2, dtor)  \
 115 \
 116 static const cxx_type_info type ## _cxx_type_info = { \
 117     0, \
 118     & type ##_type_info, \
 119     { 0, -1, 0 }, \
 120     sizeof(type), \
 121     (cxx_copy_ctor)THISCALL(MSVCP_ ## type ##_copy_ctor) \
 122 }; \
 123 \
 124 static const cxx_type_info_table type ## _cxx_type_table = { \
 125     base_no+1, \
 126     { \
 127         & type ## _cxx_type_info, \
 128         cl1, \
 129         cl2 \
 130     } \
 131 }; \
 132 \
 133 static const cxx_exception_type type ## _cxx_type = { \
 134     0, \
 135     (cxx_copy_ctor)THISCALL(dtor), \
 136     NULL, \
 137     & type ## _cxx_type_table \
 138 };
 139
 140 #else
 141
 142 #define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 143     static const type_info name ## _type_info = { \
 144         &MSVCP_type_info_vtable, \
 145         NULL, \
 146         mangled_name \
 147     }; \
 148 \
 149 static rtti_base_descriptor name ## _rtti_base_descriptor = { \
 150     0xdeadbeef, \
 151     base_classes_no, \
 152     { 0, -1, 0}, \
 153     64 \
 154 }; \
 155 \
 156 static rtti_base_array name ## _rtti_base_array = { \
 157     { \
 158         0xdeadbeef, \
 159         0xdeadbeef, \
 160         0xdeadbeef, \
 161         0xdeadbeef, \
 162         0xdeadbeef, \
 163         0xdeadbeef, \
 164         0xdeadbeef, \
 165         0xdeadbeef, \
 166         0xdeadbeef, \
 167         0xdeadbeef, \
 168     } \
 169 }; \
 170 \
 171 static rtti_object_hierarchy name ## _hierarchy = { \
 172     0, \
 173     0, \
 174     base_classes_no+1, \
 175     0xdeadbeef \
 176 }; \
 177 \
 178 rtti_object_locator name ## _rtti = { \
 179     1, \
 180     off, \
 181     0, \
 182     0xdeadbeef, \
 183     0xdeadbeef, \
 184     0xdeadbeef \
 185 };\
 186 \
 187 static void init_ ## name ## _rtti(char *base) \
 188 { \
 189     name ## _rtti_base_descriptor.type_descriptor = (char*)&name ## _type_info - base; \
 190     name ## _rtti_base_array.bases[0] = (char*)&name ## _rtti_base_descriptor - base; \
 191     name ## _rtti_base_array.bases[1] = (char*)cl1 - base; \
 192     name ## _rtti_base_array.bases[2] = (char*)cl2 - base; \
 193     name ## _rtti_base_array.bases[3] = (char*)cl3 - base; \
 194     name ## _rtti_base_array.bases[4] = (char*)cl4 - base; \
 195     name ## _rtti_base_array.bases[5] = (char*)cl5 - base; \
 196     name ## _rtti_base_array.bases[6] = (char*)cl6 - base; \
 197     name ## _rtti_base_array.bases[7] = (char*)cl7 - base; \
 198     name ## _rtti_base_array.bases[8] = (char*)cl8 - base; \
 199     name ## _rtti_base_array.bases[9] = (char*)cl9 - base; \
 200     name ## _hierarchy.base_classes = (char*)&name ## _rtti_base_array - base; \
 201     name ## _rtti.type_descriptor = (char*)&name ## _type_info - base; \
 202     name ## _rtti.type_hierarchy = (char*)&name ## _hierarchy - base; \
 203     name ## _rtti.object_locator = (char*)&name ## _rtti - base; \
 204 }
 205
 206 #define DEFINE_CXX_DATA(type, base_no, cl1, cl2, dtor)  \
 207 \
 208 static cxx_type_info type ## _cxx_type_info = { \
 209     0, \
 210     0xdeadbeef, \
 211     { 0, -1, 0 }, \
 212     sizeof(type), \
 213     0xdeadbeef \
 214 }; \
 215 \
 216 static cxx_type_info_table type ## _cxx_type_table = { \
 217     base_no+1, \
 218     { \
 219         0xdeadbeef, \
 220         0xdeadbeef, \
 221         0xdeadbeef  \
 222     } \
 223 }; \
 224 \
 225 static cxx_exception_type type ##_cxx_type = { \
 226     0, \
 227     0xdeadbeef, \
 228     0, \
 229     0xdeadbeef \
 230 }; \
 231 \
 232 static void init_ ## type ## _cxx(char *base) \
 233 { \
 234     type ## _cxx_type_info.type_info  = (char *)&type ## _type_info - base; \
 235     type ## _cxx_type_info.copy_ctor  = (char *)MSVCP_ ## type ## _copy_ctor - base; \
 236     type ## _cxx_type_table.info[0]   = (char *)&type ## _cxx_type_info - base; \
 237     type ## _cxx_type_table.info[1]   = (char *)cl1 - base; \
 238     type ## _cxx_type_table.info[2]   = (char *)cl2 - base; \
 239     type ## _cxx_type.destructor      = (char *)dtor - base; \
 240     type ## _cxx_type.type_info_table = (char *)&type ## _cxx_type_table - base; \
 241 }
 242
 243 #endif
 244
 245 #define DEFINE_RTTI_DATA0(name, off, mangled_name) \
 246     DEFINE_RTTI_DATA(name, off, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 247 #define DEFINE_RTTI_DATA1(name, off, cl1, mangled_name) \
 248     DEFINE_RTTI_DATA(name, off, 1, cl1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 249 #define DEFINE_RTTI_DATA2(name, off, cl1, cl2, mangled_name) \
 250     DEFINE_RTTI_DATA(name, off, 2, cl1, cl2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 251 #define DEFINE_RTTI_DATA3(name, off, cl1, cl2, cl3, mangled_name) \
 252     DEFINE_RTTI_DATA(name, off, 3, cl1, cl2, cl3, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 253 #define DEFINE_RTTI_DATA4(name, off, cl1, cl2, cl3, cl4, mangled_name) \
 254     DEFINE_RTTI_DATA(name, off, 4, cl1, cl2, cl3, cl4, NULL, NULL, NULL, NULL, NULL, mangled_name)
 255 #define DEFINE_RTTI_DATA8(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, mangled_name) \
 256     DEFINE_RTTI_DATA(name, off, 8, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, NULL, mangled_name)
 257 #define DEFINE_RTTI_DATA9(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 258     DEFINE_RTTI_DATA(name, off, 9, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name)
 259
 260 #define DEFINE_CXX_DATA0(name, dtor) \
 261     DEFINE_CXX_DATA(name, 0, NULL, NULL, dtor)
 262 #define DEFINE_CXX_DATA1(name, cl1, dtor) \
 263     DEFINE_CXX_DATA(name, 1, cl1, NULL, dtor)
 264 #define DEFINE_CXX_DATA2(name, cl1, cl2, dtor) \
 265     DEFINE_CXX_DATA(name, 2, cl1, cl2, dtor)
 266
 267 #ifdef __i386__
 268
 269 #define CALL_VTBL_FUNC(this, off, ret, type, args) ((ret (WINAPI*)type)&vtbl_wrapper_##off)args
 270
 271 extern void *vtbl_wrapper_0;
 272 extern void *vtbl_wrapper_4;
 273 extern void *vtbl_wrapper_8;
 274 extern void *vtbl_wrapper_12;
 275 extern void *vtbl_wrapper_16;
 276 extern void *vtbl_wrapper_20;
 277 extern void *vtbl_wrapper_24;
 278 extern void *vtbl_wrapper_28;
 279 extern void *vtbl_wrapper_32;
 280 extern void *vtbl_wrapper_36;
 281 extern void *vtbl_wrapper_40;
 282 extern void *vtbl_wrapper_44;
 283 extern void *vtbl_wrapper_48;
 284 extern void *vtbl_wrapper_52;
 285 extern void *vtbl_wrapper_56;
 286
 287 #else
 288
 289 #define CALL_VTBL_FUNC(this, off, ret, type, args) ((ret (__cdecl***)type)this)[0][off/4]args
 290
 291 #endif
 292
 293 /* exception object */
 294 typedef void (*vtable_ptr)(void);
 295 typedef struct __exception
 296 {
 297     const vtable_ptr *vtable;
 298     char             *name;    /* Name of this exception, always a new copy for each object */
 299     int               do_free; /* Whether to free 'name' in our dtor */
 300 } exception;
 301
 302 /* Internal: throws selected exception */
 303 typedef enum __exception_type {
 304     EXCEPTION_RERAISE,
 305     EXCEPTION,
 306     EXCEPTION_BAD_ALLOC,
 307     EXCEPTION_BAD_CAST,
 308     EXCEPTION_LOGIC_ERROR,
 309     EXCEPTION_LENGTH_ERROR,
 310     EXCEPTION_OUT_OF_RANGE,
 311     EXCEPTION_INVALID_ARGUMENT,
 312     EXCEPTION_RUNTIME_ERROR,
 313     EXCEPTION_FAILURE,
 314 } exception_type;
 315 void throw_exception(exception_type, const char *);
 316
 317 /* rtti */
 318 typedef struct __type_info
 319 {
 320     const vtable_ptr *vtable;
 321     char              *name;         /* Unmangled name, allocated lazily */
 322     char               mangled[128]; /* Variable length, but we declare it large enough for static RTTI */
 323 } type_info;
 324
 325 extern const vtable_ptr MSVCP_type_info_vtable;
 326
 327 /* offsets for computing the this pointer */
 328 typedef struct
 329 {
 330     int         this_offset;   /* offset of base class this pointer from start of object */
 331     int         vbase_descr;   /* offset of virtual base class descriptor */
 332     int         vbase_offset;  /* offset of this pointer offset in virtual base class descriptor */
 333 } this_ptr_offsets;
 334
 335 /* dlls/msvcrt/cppexcept.h */
 336 typedef void (*cxx_copy_ctor)(void);
 337
 338 #ifndef __x86_64__
 339
 340 typedef struct _rtti_base_descriptor
 341 {
 342     const type_info *type_descriptor;
 343     int num_base_classes;
 344     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 345     unsigned int attributes;
 346 } rtti_base_descriptor;
 347
 348 typedef struct _rtti_base_array
 349 {
 350     const rtti_base_descriptor *bases[10]; /* First element is the class itself */
 351 } rtti_base_array;
 352
 353 typedef struct _rtti_object_hierarchy
 354 {
 355     unsigned int signature;
 356     unsigned int attributes;
 357     int array_len; /* Size of the array pointed to by 'base_classes' */
 358     const rtti_base_array *base_classes;
 359 } rtti_object_hierarchy;
 360
 361 typedef struct _rtti_object_locator
 362 {
 363     unsigned int signature;
 364     int base_class_offset;
 365     unsigned int flags;
 366     const type_info *type_descriptor;
 367     const rtti_object_hierarchy *type_hierarchy;
 368 } rtti_object_locator;
 369
 370 typedef struct
 371 {
 372     UINT flags;
 373     const type_info *type_info;
 374     this_ptr_offsets offsets;
 375     unsigned int size;
 376     cxx_copy_ctor copy_ctor;
 377 } cxx_type_info;
 378
 379 typedef struct
 380 {
 381     UINT count;
 382     const cxx_type_info *info[3];
 383 } cxx_type_info_table;
 384
 385 typedef struct
 386 {
 387     UINT flags;
 388     void (*destructor)(void);
 389     void* /*cxx_exc_custom_handler*/ custom_handler;
 390     const cxx_type_info_table *type_info_table;
 391 } cxx_exception_type;
 392
 393 #else
 394
 395 typedef struct
 396 {
 397     unsigned int type_descriptor;
 398     int num_base_classes;
 399     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 400     unsigned int attributes;
 401 } rtti_base_descriptor;
 402
 403 typedef struct
 404 {
 405     unsigned int bases[10]; /* First element is the class itself */
 406 } rtti_base_array;
 407
 408 typedef struct
 409 {
 410     unsigned int signature;
 411     unsigned int attributes;
 412     int array_len; /* Size of the array pointed to by 'base_classes' */
 413     unsigned int base_classes;
 414 } rtti_object_hierarchy;
 415
 416 typedef struct
 417 {
 418     unsigned int signature;
 419     int base_class_offset;
 420     unsigned int flags;
 421     unsigned int type_descriptor;
 422     unsigned int type_hierarchy;
 423     unsigned int object_locator;
 424 } rtti_object_locator;
 425
 426 typedef struct
 427 {
 428     UINT flags;
 429     unsigned int type_info;
 430     this_ptr_offsets offsets;
 431     unsigned int size;
 432     unsigned int copy_ctor;
 433 } cxx_type_info;
 434
 435 typedef struct
 436 {
 437     UINT count;
 438     unsigned int info[3];
 439 } cxx_type_info_table;
 440
 441 typedef struct
 442 {
 443     UINT flags;
 444     unsigned int destructor;
 445     unsigned int custom_handler;
 446     unsigned int type_info_table;
 447 } cxx_exception_type;
 448
 449 #endif