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 #ifdef __i386__  /* thiscall functions are i386-specific */
  20
  21 #define THISCALL(func) __thiscall_ ## func
  22 #define THISCALL_NAME(func) __ASM_NAME("__thiscall_" #func)
  23 #define __thiscall __stdcall
  24 #define DEFINE_THISCALL_WRAPPER(func,args) \
  25     extern void THISCALL(func)(void); \
  26     __ASM_GLOBAL_FUNC(__thiscall_ ## func, \
  27                       "popl %eax\n\t" \
  28                       "pushl %ecx\n\t" \
  29                       "pushl %eax\n\t" \
  30                       "jmp " __ASM_NAME(#func) __ASM_STDCALL(args) )
  31 #else /* __i386__ */
  32
  33 #define THISCALL(func) func
  34 #define THISCALL_NAME(func) __ASM_NAME(#func)
  35 #define __thiscall __cdecl
  36 #define DEFINE_THISCALL_WRAPPER(func,args) /* nothing */
  37
  38 #endif /* __i386__ */
  39
  40 #ifdef _WIN64
  41
  42 #define VTABLE_ADD_FUNC(name) "\t.quad " THISCALL_NAME(name) "\n"
  43
  44 #define __ASM_VTABLE(name,funcs) \
  45     __asm__(".data\n" \
  46             "\t.align 8\n" \
  47             "\t.quad " __ASM_NAME(#name "_rtti") "\n" \
  48             "\t.globl " __ASM_NAME("MSVCRT_" #name "_vtable") "\n" \
  49             __ASM_NAME("MSVCRT_" #name "_vtable") ":\n" \
  50             funcs "\n\t.text")
  51
  52 #else
  53
  54 #define VTABLE_ADD_FUNC(name) "\t.long " THISCALL_NAME(name) "\n"
  55
  56 #define __ASM_VTABLE(name,funcs) \
  57     __asm__(".data\n" \
  58             "\t.align 4\n" \
  59             "\t.long " __ASM_NAME(#name "_rtti") "\n" \
  60             "\t.globl " __ASM_NAME("MSVCRT_" #name "_vtable") "\n" \
  61             __ASM_NAME("MSVCRT_" #name "_vtable") ":\n" \
  62             funcs "\n\t.text")
  63
  64 #endif /* _WIN64 */
  65
  66 #ifndef __x86_64__
  67
  68 #define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
  69     static const type_info name ## _type_info = { \
  70         &MSVCRT_type_info_vtable, \
  71         NULL, \
  72         mangled_name \
  73     }; \
  74 \
  75 static const rtti_base_descriptor name ## _rtti_base_descriptor = { \
  76     &name ##_type_info, \
  77     base_classes_no, \
  78     { 0, -1, 0}, \
  79     64 \
  80 }; \
  81 \
  82 static const rtti_base_array name ## _rtti_base_array = { \
  83     { \
  84         &name ## _rtti_base_descriptor, \
  85         cl1, \
  86         cl2, \
  87         cl3, \
  88         cl4, \
  89         cl5, \
  90         cl6, \
  91         cl7, \
  92         cl8, \
  93         cl9, \
  94     } \
  95 }; \
  96 \
  97 static const rtti_object_hierarchy name ## _hierarchy = { \
  98     0, \
  99     0, \
 100     base_classes_no+1, \
 101     &name ## _rtti_base_array \
 102 }; \
 103 \
 104 const rtti_object_locator name ## _rtti = { \
 105     0, \
 106     off, \
 107     0, \
 108     &name ## _type_info, \
 109     &name ## _hierarchy \
 110 }
 111
 112 #else
 113
 114 #define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 115     static const type_info name ## _type_info = { \
 116         &MSVCRT_type_info_vtable, \
 117         NULL, \
 118         mangled_name \
 119     }; \
 120 \
 121 static rtti_base_descriptor name ## _rtti_base_descriptor = { \
 122     0xdeadbeef, \
 123     base_classes_no, \
 124     { 0, -1, 0}, \
 125     64 \
 126 }; \
 127 \
 128 static rtti_base_array name ## _rtti_base_array = { \
 129     { \
 130         0xdeadbeef, \
 131         0xdeadbeef, \
 132         0xdeadbeef, \
 133         0xdeadbeef, \
 134         0xdeadbeef, \
 135         0xdeadbeef, \
 136         0xdeadbeef, \
 137         0xdeadbeef, \
 138         0xdeadbeef, \
 139         0xdeadbeef, \
 140     } \
 141 }; \
 142 \
 143 static rtti_object_hierarchy name ## _hierarchy = { \
 144     0, \
 145     0, \
 146     base_classes_no+1, \
 147     0xdeadbeef \
 148 }; \
 149 \
 150 rtti_object_locator name ## _rtti = { \
 151     1, \
 152     off, \
 153     0, \
 154     0xdeadbeef, \
 155     0xdeadbeef, \
 156     0xdeadbeef \
 157 };\
 158 \
 159 static void init_ ## name ## _rtti(char *base) \
 160 { \
 161     name ## _rtti_base_descriptor.type_descriptor = (char*)&name ## _type_info - base; \
 162     name ## _rtti_base_array.bases[0] = (char*)&name ## _rtti_base_descriptor - base; \
 163     name ## _rtti_base_array.bases[1] = (char*)cl1 - base; \
 164     name ## _rtti_base_array.bases[2] = (char*)cl2 - base; \
 165     name ## _rtti_base_array.bases[3] = (char*)cl3 - base; \
 166     name ## _rtti_base_array.bases[4] = (char*)cl4 - base; \
 167     name ## _rtti_base_array.bases[5] = (char*)cl5 - base; \
 168     name ## _rtti_base_array.bases[6] = (char*)cl6 - base; \
 169     name ## _rtti_base_array.bases[7] = (char*)cl7 - base; \
 170     name ## _rtti_base_array.bases[8] = (char*)cl8 - base; \
 171     name ## _rtti_base_array.bases[9] = (char*)cl9 - base; \
 172     name ## _hierarchy.base_classes = (char*)&name ## _rtti_base_array - base; \
 173     name ## _rtti.type_descriptor = (char*)&name ## _type_info - base; \
 174     name ## _rtti.type_hierarchy = (char*)&name ## _hierarchy - base; \
 175     name ## _rtti.object_locator = (char*)&name ## _rtti - base; \
 176 }
 177
 178 #endif
 179
 180 #define DEFINE_RTTI_DATA0(name, off, mangled_name) \
 181     DEFINE_RTTI_DATA(name, off, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 182 #define DEFINE_RTTI_DATA1(name, off, cl1, mangled_name) \
 183     DEFINE_RTTI_DATA(name, off, 1, cl1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 184 #define DEFINE_RTTI_DATA2(name, off, cl1, cl2, mangled_name) \
 185     DEFINE_RTTI_DATA(name, off, 2, cl1, cl2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 186 #define DEFINE_RTTI_DATA3(name, off, cl1, cl2, cl3, mangled_name) \
 187     DEFINE_RTTI_DATA(name, off, 3, cl1, cl2, cl3, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
 188 #define DEFINE_RTTI_DATA4(name, off, cl1, cl2, cl3, cl4, mangled_name) \
 189     DEFINE_RTTI_DATA(name, off, 4, cl1, cl2, cl3, cl4, NULL, NULL, NULL, NULL, NULL, mangled_name)
 190 #define DEFINE_RTTI_DATA8(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, mangled_name) \
 191     DEFINE_RTTI_DATA(name, off, 8, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, NULL, mangled_name)
 192 #define DEFINE_RTTI_DATA9(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
 193     DEFINE_RTTI_DATA(name, off, 9, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name)
 194
 195 #ifndef __x86_64__
 196
 197 typedef struct _rtti_base_descriptor
 198 {
 199     const type_info *type_descriptor;
 200     int num_base_classes;
 201     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 202     unsigned int attributes;
 203 } rtti_base_descriptor;
 204
 205 typedef struct _rtti_base_array
 206 {
 207     const rtti_base_descriptor *bases[10]; /* First element is the class itself */
 208 } rtti_base_array;
 209
 210 typedef struct _rtti_object_hierarchy
 211 {
 212     unsigned int signature;
 213     unsigned int attributes;
 214     int array_len; /* Size of the array pointed to by 'base_classes' */
 215     const rtti_base_array *base_classes;
 216 } rtti_object_hierarchy;
 217
 218 typedef struct _rtti_object_locator
 219 {
 220     unsigned int signature;
 221     int base_class_offset;
 222     unsigned int flags;
 223     const type_info *type_descriptor;
 224     const rtti_object_hierarchy *type_hierarchy;
 225 } rtti_object_locator;
 226
 227 #else
 228
 229 typedef struct
 230 {
 231     unsigned int type_descriptor;
 232     int num_base_classes;
 233     this_ptr_offsets offsets;    /* offsets for computing the this pointer */
 234     unsigned int attributes;
 235 } rtti_base_descriptor;
 236
 237 typedef struct
 238 {
 239     unsigned int bases[10]; /* First element is the class itself */
 240 } rtti_base_array;
 241
 242 typedef struct
 243 {
 244     unsigned int signature;
 245     unsigned int attributes;
 246     int array_len; /* Size of the array pointed to by 'base_classes' */
 247     unsigned int base_classes;
 248 } rtti_object_hierarchy;
 249
 250 typedef struct
 251 {
 252     unsigned int signature;
 253     int base_class_offset;
 254     unsigned int flags;
 255     unsigned int type_descriptor;
 256     unsigned int type_hierarchy;
 257     unsigned int object_locator;
 258 } rtti_object_locator;
 259
 260 #endif