dlls/msvcp60/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/cpp.c */
  20 #ifdef __i386__  /* thiscall functions are i386-specific */
  21
  22 #define THISCALL(func) __thiscall_ ## func
  23 #define THISCALL_NAME(func) __ASM_NAME("__thiscall_" #func)
  24 #define __thiscall __stdcall
  25 #define DEFINE_THISCALL_WRAPPER(func,args) \
  26     extern void THISCALL(func)(void); \
  27     __ASM_GLOBAL_FUNC(__thiscall_ ## func, \
  28                       "popl %eax\n\t" \
  29                       "pushl %ecx\n\t" \
  30                       "pushl %eax\n\t" \
  31                       "jmp " __ASM_NAME(#func) __ASM_STDCALL(args) )
  32 #else /* __i386__ */
  33
  34 #define THISCALL(func) func
  35 #define THISCALL_NAME(func) __ASM_NAME(#func)
  36 #define __thiscall __cdecl
  37 #define DEFINE_THISCALL_WRAPPER(func,args) /* nothing */
  38
  39 #endif /* __i386__ */
  40
  41 #ifdef _WIN64
  42
  43 #define VTABLE_ADD_FUNC(name) "\t.quad " THISCALL_NAME(name) "\n"
  44
  45 #define __ASM_VTABLE(name,funcs) \
  46     __asm__(".data\n" \
  47             "\t.align 8\n" \
  48             "\t.quad " __ASM_NAME(#name "_rtti") "\n" \
  49             "\t.globl " __ASM_NAME("MSVCP_" #name "_vtable") "\n" \
  50             __ASM_NAME("MSVCP_" #name "_vtable") ":\n" \
  51             funcs "\n\t.text")
  52
  53 #else
  54
  55 #define VTABLE_ADD_FUNC(name) "\t.long " THISCALL_NAME(name) "\n"
  56
  57 #define __ASM_VTABLE(name,funcs) \
  58     __asm__(".data\n" \
  59             "\t.align 4\n" \
  60             "\t.long " __ASM_NAME(#name "_rtti") "\n" \
  61             "\t.globl " __ASM_NAME("MSVCP_" #name "_vtable") "\n" \
  62             __ASM_NAME("MSVCP_" #name "_vtable") ":\n" \
  63             funcs "\n\t.text")
  64
  65 #endif /* _WIN64 */
  66
  67 #ifndef __x86_64__
  68
  69 #define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
  70     static const type_info name ## _type_info = { \
  71         &MSVCP_type_info_vtable, \
  72         NULL, \
  73         mangled_name \
  74     }; \
  75 \
  76 static const rtti_base_descriptor name ## _rtti_base_descriptor = { \
  77     &name ##_type_info, \
  78     base_classes_no, \
  79     { 0, -1, 0}, \
  80     64 \
  81 }; \
  82 \
  83 static const rtti_base_array name ## _rtti_base_array = { \
  84     { \
  85         &name ## _rtti_base_descriptor, \
  86         cl1, \
  87         cl2, \
  88         cl3, \
  89         cl4, \
  90         cl5, \
  91         cl6, \
  92         cl7, \
  93         cl8, \
  94         cl9, \
  95     } \
  96 }; \
  97 \
  98 static const rtti_object_hierarchy name ## _hierarchy = { \
  99     0, \
 100     0, \
 101     base_classes_no+1, \
 102     &name ## _rtti_base_array \
 103 }; \
 104 \
 105 const rtti_object_locator name ## _rtti = { \
 106     0, \
 107     off, \
 108     0, \
 109     &name ## _type_info, \
 110     &name ## _hierarchy \
 111 };
 112
 113 #define DEFINE_CXX_DATA(type, base_no, cl1, cl2, dtor)  \
 114 \
 115 static const cxx_type_info type ## _cxx_type_info = { \
 116     0, \
 117     & type ##_type_info, \
 118     { 0, -1, 0 }, \
 119     sizeof(type), \
 120     (cxx_copy_ctor)THISCALL(MSVCP_ ## type ##_copy_ctor) \
 121 }; \
 122 \
 123 static const cxx_type_info_table type ## _cxx_type_table = { \
 124     base_no+1, \
 125     { \
 126         & type ## _cxx_type_info, \
 127         cl1, \
 128         cl2 \
 129     } \
 130 }; \
 131 \
 132 static const cxx_exception_type type ## _cxx_type = { \
 133     0, \
 134     (cxx_copy_ctor)THISCALL(dtor), \
 135     NULL, \
 136     & type ## _cxx_type_table \
 137 };
 138
 139 #else
 140
 141 #define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 142     static const type_info name ## _type_info = { \
 143         &MSVCP_type_info_vtable, \
 144         NULL, \
 145         mangled_name \
 146     }; \
 147 \
 148 static rtti_base_descriptor name ## _rtti_base_descriptor = { \
 149     0xdeadbeef, \
 150     base_classes_no, \
 151     { 0, -1, 0}, \
 152     64 \
 153 }; \
 154 \
 155 static rtti_base_array name ## _rtti_base_array = { \
 156     { \
 157         0xdeadbeef, \
 158         0xdeadbeef, \
 159         0xdeadbeef, \
 160         0xdeadbeef, \
 161         0xdeadbeef, \
 162         0xdeadbeef, \
 163         0xdeadbeef, \
 164         0xdeadbeef, \
 165         0xdeadbeef, \
 166         0xdeadbeef, \
 167     } \
 168 }; \
 169 \
 170 static rtti_object_hierarchy name ## _hierarchy = { \
 171     0, \
 172     0, \
 173     base_classes_no+1, \
 174     0xdeadbeef \
 175 }; \
 176 \
 177 rtti_object_locator name ## _rtti = { \
 178     1, \
 179     off, \
 180     0, \
 181     0xdeadbeef, \
 182     0xdeadbeef, \
 183     0xdeadbeef \
 184 };\
 185 \
 186 static void init_ ## name ## _rtti(char *base) \
 187 { \
 188     name ## _rtti_base_descriptor.type_descriptor = (char*)&name ## _type_info - base; \
 189     name ## _rtti_base_array.bases[0] = (char*)&name ## _rtti_base_descriptor - base; \
 190     name ## _rtti_base_array.bases[1] = (char*)cl1 - base; \
 191     name ## _rtti_base_array.bases[2] = (char*)cl2 - base; \
 192     name ## _rtti_base_array.bases[3] = (char*)cl3 - base; \
 193     name ## _rtti_base_array.bases[4] = (char*)cl4 - base; \
 194     name ## _rtti_base_array.bases[5] = (char*)cl5 - base; \
 195     name ## _rtti_base_array.bases[6] = (char*)cl6 - base; \
 196     name ## _rtti_base_array.bases[7] = (char*)cl7 - base; \
 197     name ## _rtti_base_array.bases[8] = (char*)cl8 - base; \
 198     name ## _rtti_base_array.bases[9] = (char*)cl9 - base; \
 199     name ## _hierarchy.base_classes = (char*)&name ## _rtti_base_array - base; \
 200     name ## _rtti.type_descriptor = (char*)&name ## _type_info - base; \
 201     name ## _rtti.type_hierarchy = (char*)&name ## _hierarchy - base; \
 202     name ## _rtti.object_locator = (char*)&name ## _rtti - base; \
 203 }
 204
 205 #define DEFINE_CXX_DATA(type, base_no, cl1, cl2, dtor)  \
 206 \
 207 static cxx_type_info type ## _cxx_type_info = { \
 208     0, \
 209     0xdeadbeef, \
 210     { 0, -1, 0 }, \
 211     sizeof(type), \
 212     0xdeadbeef \
 213 }; \
 214 \
 215 static cxx_type_info_table type ## _cxx_type_table = { \
 216     base_no+1, \
 217     { \
 218         0xdeadbeef, \
 219         0xdeadbeef, \
 220         0xdeadbeef  \
 221     } \
 222 }; \
 223 \
 224 static cxx_exception_type type ##_cxx_type = { \
 225     0, \
 226     0xdeadbeef, \
 227     0, \
 228     0xdeadbeef \
 229 }; \
 230 \
 231 static void init_ ## type ## _cxx(char *base) \
 232 { \
 233     type ## _cxx_type_info.type_info  = (char *)&type ## _type_info - base; \
 234     type ## _cxx_type_info.copy_ctor  = (char *)MSVCP_ ## type ## _copy_ctor - base; \
 235     type ## _cxx_type_table.info[0]   = (char *)&type ## _cxx_type_info - base; \
 236     type ## _cxx_type_table.info[1]   = (char *)cl1 - base; \
 237     type ## _cxx_type_table.info[2]   = (char *)cl2 - base; \
 238     type ## _cxx_type.destructor      = (char *)dtor - base; \
 239     type ## _cxx_type.type_info_table = (char *)&type ## _cxx_type_table - base; \
 240 }
 241
 242 #endif
 243
 244 #define DEFINE_RTTI_DATA0(name, off, mangled_name) \
 245     DEFINE_RTTI_DATA(name, off, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 246 #define DEFINE_RTTI_DATA1(name, off, cl1, mangled_name) \
 247     DEFINE_RTTI_DATA(name, off, 1, cl1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 248 #define DEFINE_RTTI_DATA2(name, off, cl1, cl2, mangled_name) \
 249     DEFINE_RTTI_DATA(name, off, 2, cl1, cl2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 250 #define DEFINE_RTTI_DATA3(name, off, cl1, cl2, cl3, mangled_name) \
 251     DEFINE_RTTI_DATA(name, off, 3, cl1, cl2, cl3, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 252 #define DEFINE_RTTI_DATA4(name, off, cl1, cl2, cl3, cl4, mangled_name) \
 253     DEFINE_RTTI_DATA(name, off, 4, cl1, cl2, cl3, cl4, NULL, NULL, NULL, NULL, NULL, mangled_name)
 254 #define DEFINE_RTTI_DATA8(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, mangled_name) \
 255     DEFINE_RTTI_DATA(name, off, 8, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, NULL, mangled_name)
 256 #define DEFINE_RTTI_DATA9(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 257     DEFINE_RTTI_DATA(name, off, 9, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name)
 258
 259 #define DEFINE_CXX_DATA0(name, dtor) \
 260     DEFINE_CXX_DATA(name, 0, NULL, NULL, dtor)
 261 #define DEFINE_CXX_DATA1(name, cl1, dtor) \
 262     DEFINE_CXX_DATA(name, 1, cl1, NULL, dtor)
 263 #define DEFINE_CXX_DATA2(name, cl1, cl2, dtor) \
 264     DEFINE_CXX_DATA(name, 2, cl1, cl2, dtor)
 265
 266 #ifdef __i386__
 267
 268 #define CALL_VTBL_FUNC(this, off, ret, type, args) ((ret (WINAPI*)type)&vtbl_wrapper_##off)args
 269
 270 extern void *vtbl_wrapper_0;
 271 extern void *vtbl_wrapper_4;
 272 extern void *vtbl_wrapper_8;
 273 extern void *vtbl_wrapper_12;
 274 extern void *vtbl_wrapper_16;
 275 extern void *vtbl_wrapper_20;
 276 extern void *vtbl_wrapper_24;
 277 extern void *vtbl_wrapper_28;
 278 extern void *vtbl_wrapper_32;
 279 extern void *vtbl_wrapper_36;
 280 extern void *vtbl_wrapper_40;
 281 extern void *vtbl_wrapper_44;
 282 extern void *vtbl_wrapper_48;
 283
 284 #else
 285
 286 #define CALL_VTBL_FUNC(this, off, ret, type, args) ((ret (__cdecl***)type)this)[0][off/4]args
 287
 288 #endif
 289
 290 /* exception object */
 291 typedef void (*vtable_ptr)(void);
 292 typedef struct __exception
 293 {
 294     const vtable_ptr *vtable;
 295     char             *name;    /* Name of this exception, always a new copy for each object */
 296     int               do_free; /* Whether to free 'name' in our dtor */
 297 } exception;
 298
 299 /* Internal: throws selected exception */
 300 typedef enum __exception_type {
 301     EXCEPTION_RERAISE,
 302     EXCEPTION,
 303     EXCEPTION_BAD_ALLOC,
 304     EXCEPTION_LOGIC_ERROR,
 305     EXCEPTION_LENGTH_ERROR,
 306     EXCEPTION_OUT_OF_RANGE,
 307     EXCEPTION_INVALID_ARGUMENT,
 308     EXCEPTION_RUNTIME_ERROR,
 309     EXCEPTION_FAILURE,
 310 } exception_type;
 311 void throw_exception(exception_type, const char *);
 312
 313 /* rtti */
 314 typedef struct __type_info
 315 {
 316     const vtable_ptr *vtable;
 317     char              *name;         /* Unmangled name, allocated lazily */
 318     char               mangled[128]; /* Variable length, but we declare it large enough for static RTTI */
 319 } type_info;
 320
 321 extern const vtable_ptr MSVCP_type_info_vtable;
 322
 323 /* offsets for computing the this pointer */
 324 typedef struct
 325 {
 326     int         this_offset;   /* offset of base class this pointer from start of object */
 327     int         vbase_descr;   /* offset of virtual base class descriptor */
 328     int         vbase_offset;  /* offset of this pointer offset in virtual base class descriptor */
 329 } this_ptr_offsets;
 330
 331 /* dlls/msvcrt/cppexcept.h */
 332 typedef void (*cxx_copy_ctor)(void);
 333
 334 #ifndef __x86_64__
 335
 336 typedef struct _rtti_base_descriptor
 337 {
 338     const type_info *type_descriptor;
 339     int num_base_classes;
 340     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 341     unsigned int attributes;
 342 } rtti_base_descriptor;
 343
 344 typedef struct _rtti_base_array
 345 {
 346     const rtti_base_descriptor *bases[10]; /* First element is the class itself */
 347 } rtti_base_array;
 348
 349 typedef struct _rtti_object_hierarchy
 350 {
 351     unsigned int signature;
 352     unsigned int attributes;
 353     int array_len; /* Size of the array pointed to by 'base_classes' */
 354     const rtti_base_array *base_classes;
 355 } rtti_object_hierarchy;
 356
 357 typedef struct _rtti_object_locator
 358 {
 359     unsigned int signature;
 360     int base_class_offset;
 361     unsigned int flags;
 362     const type_info *type_descriptor;
 363     const rtti_object_hierarchy *type_hierarchy;
 364 } rtti_object_locator;
 365
 366 typedef struct
 367 {
 368     UINT flags;
 369     const type_info *type_info;
 370     this_ptr_offsets offsets;
 371     unsigned int size;
 372     cxx_copy_ctor copy_ctor;
 373 } cxx_type_info;
 374
 375 typedef struct
 376 {
 377     UINT count;
 378     const cxx_type_info *info[3];
 379 } cxx_type_info_table;
 380
 381 typedef struct
 382 {
 383     UINT flags;
 384     void (*destructor)(void);
 385     void* /*cxx_exc_custom_handler*/ custom_handler;
 386     const cxx_type_info_table *type_info_table;
 387 } cxx_exception_type;
 388
 389 #else
 390
 391 typedef struct
 392 {
 393     unsigned int type_descriptor;
 394     int num_base_classes;
 395     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 396     unsigned int attributes;
 397 } rtti_base_descriptor;
 398
 399 typedef struct
 400 {
 401     unsigned int bases[10]; /* First element is the class itself */
 402 } rtti_base_array;
 403
 404 typedef struct
 405 {
 406     unsigned int signature;
 407     unsigned int attributes;
 408     int array_len; /* Size of the array pointed to by 'base_classes' */
 409     unsigned int base_classes;
 410 } rtti_object_hierarchy;
 411
 412 typedef struct
 413 {
 414     unsigned int signature;
 415     int base_class_offset;
 416     unsigned int flags;
 417     unsigned int type_descriptor;
 418     unsigned int type_hierarchy;
 419     unsigned int object_locator;
 420 } rtti_object_locator;
 421
 422 typedef struct
 423 {
 424     UINT flags;
 425     unsigned int type_info;
 426     this_ptr_offsets offsets;
 427     unsigned int size;
 428     unsigned int copy_ctor;
 429 } cxx_type_info;
 430
 431 typedef struct
 432 {
 433     UINT count;
 434     unsigned int info[3];
 435 } cxx_type_info_table;
 436
 437 typedef struct
 438 {
 439     UINT flags;
 440     unsigned int destructor;
 441     unsigned int custom_handler;
 442     unsigned int type_info_table;
 443 } cxx_exception_type;
 444
 445 #endif