dlls/msvcrt/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 #undef __thiscall
  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("MSVCRT_" #name "_vtable") "\n" \
  50             __ASM_NAME("MSVCRT_" #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("MSVCRT_" #name "_vtable") "\n" \
  62             __ASM_NAME("MSVCRT_" #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         &MSVCRT_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 #else
 114
 115 #define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 116     static const type_info name ## _type_info = { \
 117         &MSVCRT_type_info_vtable, \
 118         NULL, \
 119         mangled_name \
 120     }; \
 121 \
 122 static rtti_base_descriptor name ## _rtti_base_descriptor = { \
 123     0xdeadbeef, \
 124     base_classes_no, \
 125     { 0, -1, 0}, \
 126     64 \
 127 }; \
 128 \
 129 static rtti_base_array name ## _rtti_base_array = { \
 130     { \
 131         0xdeadbeef, \
 132         0xdeadbeef, \
 133         0xdeadbeef, \
 134         0xdeadbeef, \
 135         0xdeadbeef, \
 136         0xdeadbeef, \
 137         0xdeadbeef, \
 138         0xdeadbeef, \
 139         0xdeadbeef, \
 140         0xdeadbeef, \
 141     } \
 142 }; \
 143 \
 144 static rtti_object_hierarchy name ## _hierarchy = { \
 145     0, \
 146     0, \
 147     base_classes_no+1, \
 148     0xdeadbeef \
 149 }; \
 150 \
 151 rtti_object_locator name ## _rtti = { \
 152     1, \
 153     off, \
 154     0, \
 155     0xdeadbeef, \
 156     0xdeadbeef, \
 157     0xdeadbeef \
 158 };\
 159 \
 160 static void init_ ## name ## _rtti(char *base) \
 161 { \
 162     name ## _rtti_base_descriptor.type_descriptor = (char*)&name ## _type_info - base; \
 163     name ## _rtti_base_array.bases[0] = (char*)&name ## _rtti_base_descriptor - base; \
 164     name ## _rtti_base_array.bases[1] = (char*)cl1 - base; \
 165     name ## _rtti_base_array.bases[2] = (char*)cl2 - base; \
 166     name ## _rtti_base_array.bases[3] = (char*)cl3 - base; \
 167     name ## _rtti_base_array.bases[4] = (char*)cl4 - base; \
 168     name ## _rtti_base_array.bases[5] = (char*)cl5 - base; \
 169     name ## _rtti_base_array.bases[6] = (char*)cl6 - base; \
 170     name ## _rtti_base_array.bases[7] = (char*)cl7 - base; \
 171     name ## _rtti_base_array.bases[8] = (char*)cl8 - base; \
 172     name ## _rtti_base_array.bases[9] = (char*)cl9 - base; \
 173     name ## _hierarchy.base_classes = (char*)&name ## _rtti_base_array - base; \
 174     name ## _rtti.type_descriptor = (char*)&name ## _type_info - base; \
 175     name ## _rtti.type_hierarchy = (char*)&name ## _hierarchy - base; \
 176     name ## _rtti.object_locator = (char*)&name ## _rtti - base; \
 177 }
 178
 179 #endif
 180
 181 #define DEFINE_RTTI_DATA0(name, off, mangled_name) \
 182     DEFINE_RTTI_DATA(name, off, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 183 #define DEFINE_RTTI_DATA1(name, off, cl1, mangled_name) \
 184     DEFINE_RTTI_DATA(name, off, 1, cl1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 185 #define DEFINE_RTTI_DATA2(name, off, cl1, cl2, mangled_name) \
 186     DEFINE_RTTI_DATA(name, off, 2, cl1, cl2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 187 #define DEFINE_RTTI_DATA3(name, off, cl1, cl2, cl3, mangled_name) \
 188     DEFINE_RTTI_DATA(name, off, 3, cl1, cl2, cl3, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 189 #define DEFINE_RTTI_DATA4(name, off, cl1, cl2, cl3, cl4, mangled_name) \
 190     DEFINE_RTTI_DATA(name, off, 4, cl1, cl2, cl3, cl4, NULL, NULL, NULL, NULL, NULL, mangled_name)
 191 #define DEFINE_RTTI_DATA8(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, mangled_name) \
 192     DEFINE_RTTI_DATA(name, off, 8, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, NULL, mangled_name)
 193 #define DEFINE_RTTI_DATA9(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 194     DEFINE_RTTI_DATA(name, off, 9, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name)
 195
 196 #ifndef __x86_64__
 197
 198 typedef struct _rtti_base_descriptor
 199 {
 200     const type_info *type_descriptor;
 201     int num_base_classes;
 202     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 203     unsigned int attributes;
 204 } rtti_base_descriptor;
 205
 206 typedef struct _rtti_base_array
 207 {
 208     const rtti_base_descriptor *bases[10]; /* First element is the class itself */
 209 } rtti_base_array;
 210
 211 typedef struct _rtti_object_hierarchy
 212 {
 213     unsigned int signature;
 214     unsigned int attributes;
 215     int array_len; /* Size of the array pointed to by 'base_classes' */
 216     const rtti_base_array *base_classes;
 217 } rtti_object_hierarchy;
 218
 219 typedef struct _rtti_object_locator
 220 {
 221     unsigned int signature;
 222     int base_class_offset;
 223     unsigned int flags;
 224     const type_info *type_descriptor;
 225     const rtti_object_hierarchy *type_hierarchy;
 226 } rtti_object_locator;
 227
 228 #else
 229
 230 typedef struct
 231 {
 232     unsigned int type_descriptor;
 233     int num_base_classes;
 234     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 235     unsigned int attributes;
 236 } rtti_base_descriptor;
 237
 238 typedef struct
 239 {
 240     unsigned int bases[10]; /* First element is the class itself */
 241 } rtti_base_array;
 242
 243 typedef struct
 244 {
 245     unsigned int signature;
 246     unsigned int attributes;
 247     int array_len; /* Size of the array pointed to by 'base_classes' */
 248     unsigned int base_classes;
 249 } rtti_object_hierarchy;
 250
 251 typedef struct
 252 {
 253     unsigned int signature;
 254     int base_class_offset;
 255     unsigned int flags;
 256     unsigned int type_descriptor;
 257     unsigned int type_hierarchy;
 258     unsigned int object_locator;
 259 } rtti_object_locator;
 260
 261 #endif