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/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             "\t.quad " THISCALL_NAME(MSVCP_ ## name ## _vector_dtor) "\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             "\t.long " THISCALL_NAME(MSVCP_ ## name ## _vector_dtor) "\n" \
  65             funcs "\n\t.text")
  66
  67 #endif /* _WIN64 */
  68
  69 #define DEFINE_RTTI_DATA(name, off, base_classes, 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, \
  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+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_RTTI_DATA0(name, off, mangled_name) \
 114     DEFINE_RTTI_DATA(name, off, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 115 #define DEFINE_RTTI_DATA1(name, off, cl1, mangled_name) \
 116     DEFINE_RTTI_DATA(name, off, 1, cl1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 117 #define DEFINE_RTTI_DATA2(name, off, cl1, cl2, mangled_name) \
 118     DEFINE_RTTI_DATA(name, off, 2, cl1, cl2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 119 #define DEFINE_RTTI_DATA3(name, off, cl1, cl2, cl3, mangled_name) \
 120     DEFINE_RTTI_DATA(name, off, 3, cl1, cl2, cl3, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 121 #define DEFINE_RTTI_DATA4(name, off, cl1, cl2, cl3, cl4, mangled_name) \
 122     DEFINE_RTTI_DATA(name, off, 4, cl1, cl2, cl3, cl4, NULL, NULL, NULL, NULL, NULL, mangled_name)
 123 #define DEFINE_RTTI_DATA8(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, mangled_name) \
 124     DEFINE_RTTI_DATA(name, off, 8, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, NULL, mangled_name)
 125 #define DEFINE_RTTI_DATA9(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 126     DEFINE_RTTI_DATA(name, off, 9, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name)
 127
 128 #ifdef __i386__
 129
 130 #define CALL_VTBL_FUNC(this, off, ret, type, args) ((ret (WINAPI*)type)&vtbl_wrapper_##off)args
 131
 132 extern void *vtbl_wrapper_0;
 133 extern void *vtbl_wrapper_4;
 134 extern void *vtbl_wrapper_8;
 135 extern void *vtbl_wrapper_12;
 136 extern void *vtbl_wrapper_16;
 137 extern void *vtbl_wrapper_20;
 138 extern void *vtbl_wrapper_24;
 139 extern void *vtbl_wrapper_28;
 140 extern void *vtbl_wrapper_32;
 141 extern void *vtbl_wrapper_36;
 142 extern void *vtbl_wrapper_40;
 143 extern void *vtbl_wrapper_44;
 144 extern void *vtbl_wrapper_48;
 145 extern void *vtbl_wrapper_52;
 146 extern void *vtbl_wrapper_56;
 147 extern void *vtbl_wrapper_60;
 148
 149 #else
 150
 151 #define CALL_VTBL_FUNC(this, off, ret, type, args) ((ret (__cdecl***)type)this)[0][off/4]args
 152
 153 #endif
 154
 155 /* exception object */
 156 typedef void (*vtable_ptr)(void);
 157 typedef struct __exception
 158 {
 159     const vtable_ptr *vtable;
 160     char             *name;    /* Name of this exception, always a new copy for each object */
 161     int               do_free; /* Whether to free 'name' in our dtor */
 162 } exception;
 163
 164 /* Internal: throws selected exception */
 165 typedef enum __exception_type {
 166     EXCEPTION_RERAISE,
 167     EXCEPTION,
 168     EXCEPTION_BAD_ALLOC,
 169     EXCEPTION_LOGIC_ERROR,
 170     EXCEPTION_LENGTH_ERROR,
 171     EXCEPTION_OUT_OF_RANGE,
 172     EXCEPTION_INVALID_ARGUMENT,
 173     EXCEPTION_RUNTIME_ERROR,
 174     EXCEPTION_FAILURE,
 175 } exception_type;
 176 void throw_exception(exception_type, const char *);
 177
 178 /* rtti */
 179 typedef struct __type_info
 180 {
 181     const vtable_ptr *vtable;
 182     char              *name;         /* Unmangled name, allocated lazily */
 183     char               mangled[128]; /* Variable length, but we declare it large enough for static RTTI */
 184 } type_info;
 185
 186 extern const vtable_ptr MSVCP_type_info_vtable;
 187
 188 /* offsets for computing the this pointer */
 189 typedef struct
 190 {
 191     int         this_offset;   /* offset of base class this pointer from start of object */
 192     int         vbase_descr;   /* offset of virtual base class descriptor */
 193     int         vbase_offset;  /* offset of this pointer offset in virtual base class descriptor */
 194 } this_ptr_offsets;
 195
 196 typedef struct _rtti_base_descriptor
 197 {
 198     const type_info *type_descriptor;
 199     int num_base_classes;
 200     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 201     unsigned int attributes;
 202 } rtti_base_descriptor;
 203
 204 typedef struct _rtti_base_array
 205 {
 206     const rtti_base_descriptor *bases[10]; /* First element is the class itself */
 207 } rtti_base_array;
 208
 209 typedef struct _rtti_object_hierarchy
 210 {
 211     unsigned int signature;
 212     unsigned int attributes;
 213     int array_len; /* Size of the array pointed to by 'base_classes' */
 214     const rtti_base_array *base_classes;
 215 } rtti_object_hierarchy;
 216
 217 typedef struct _rtti_object_locator
 218 {
 219     unsigned int signature;
 220     int base_class_offset;
 221     unsigned int flags;
 222     const type_info *type_descriptor;
 223     const rtti_object_hierarchy *type_hierarchy;
 224 } rtti_object_locator;