Proton/lsteamclient/cxx.h

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2018-01-18 19:24:05 +03:00
/*
* Copyright 2012 Piotr Caban for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* Copied from dlls/msvcrt/cxx.h */
#undef __thiscall
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#ifdef __APPLE__
# define __ASM_NAME(name) "_" name
#else
# define __ASM_NAME(name) name
#endif
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#ifdef __i386__ /* thiscall functions are i386-specific */
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#ifdef __APPLE__
# define __ASM_DEFINE_FUNC(name,suffix,code) asm(".text\n\t.align 4\n\t.globl _" #name suffix "\n\t\n_" #name suffix ":\n\t.cfi_startproc\n\t" code "\n\t.cfi_endproc\n\t.previous");
#else
# define __ASM_DEFINE_FUNC(name,suffix,code) asm(".text\n\t.align 4\n\t.globl " #name suffix "\n\t.type " #name suffix ",@function\n" #name suffix ":\n\t.cfi_startproc\n\t" code "\n\t.cfi_endproc\n\t.previous");
#endif
#define __ASM_GLOBAL_FUNC(name,code) __ASM_DEFINE_FUNC(name,"",code)
#define __ASM_STDCALL(args) ""
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#define THISCALL(func) __thiscall_ ## func
#define THISCALL_NAME(func) __ASM_NAME("__thiscall_" #func)
#define __thiscall __stdcall
#define DEFINE_THISCALL_WRAPPER(func,args) \
extern void THISCALL(func)(void); \
__ASM_GLOBAL_FUNC(__thiscall_ ## func, \
"popl %eax\n\t" \
"pushl %ecx\n\t" \
"pushl %eax\n\t" \
"jmp " __ASM_NAME(#func) __ASM_STDCALL(args) )
#else /* __i386__ */
#define THISCALL(func) func
#define THISCALL_NAME(func) __ASM_NAME(#func)
#define __thiscall __cdecl
#define DEFINE_THISCALL_WRAPPER(func,args) /* nothing */
#endif /* __i386__ */
#ifdef _WIN64
#define VTABLE_ADD_FUNC(name) "\t.quad " THISCALL_NAME(name) "\n"
#define __ASM_VTABLE(name,funcs) \
__asm__(".data\n" \
"\t.align 8\n" \
"\t.quad 0\n" \
"\t.globl " __ASM_NAME(#name "_vtable") "\n" \
__ASM_NAME(#name "_vtable") ":\n" \
funcs "\n\t.text")
#else
#define VTABLE_ADD_FUNC(name) "\t.long " THISCALL_NAME(name) "\n"
#define __ASM_VTABLE(name,funcs) \
__asm__(".data\n" \
"\t.align 4\n" \
"\t.long 0\n" \
"\t.globl " __ASM_NAME(#name "_vtable") "\n" \
__ASM_NAME(#name "_vtable") ":\n" \
funcs "\n\t.text")
#endif /* _WIN64 */
#ifndef __x86_64__
#define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
static const type_info name ## _type_info = { \
&MSVCP_type_info_vtable, \
NULL, \
mangled_name \
}; \
\
static const rtti_base_descriptor name ## _rtti_base_descriptor = { \
&name ##_type_info, \
base_classes_no, \
{ 0, -1, 0}, \
64 \
}; \
\
static const rtti_base_array name ## _rtti_base_array = { \
{ \
&name ## _rtti_base_descriptor, \
cl1, \
cl2, \
cl3, \
cl4, \
cl5, \
cl6, \
cl7, \
cl8, \
cl9, \
} \
}; \
\
static const rtti_object_hierarchy name ## _hierarchy = { \
0, \
0, \
base_classes_no+1, \
&name ## _rtti_base_array \
}; \
\
const rtti_object_locator name ## _rtti = { \
0, \
off, \
0, \
&name ## _type_info, \
&name ## _hierarchy \
};
#define DEFINE_CXX_DATA(type, base_no, cl1, cl2, dtor) \
\
static const cxx_type_info type ## _cxx_type_info = { \
0, \
& type ##_type_info, \
{ 0, -1, 0 }, \
sizeof(type), \
(cxx_copy_ctor)THISCALL(MSVCP_ ## type ##_copy_ctor) \
}; \
\
static const cxx_type_info_table type ## _cxx_type_table = { \
base_no+1, \
{ \
& type ## _cxx_type_info, \
cl1, \
cl2 \
} \
}; \
\
static const cxx_exception_type type ## _cxx_type = { \
0, \
(cxx_copy_ctor)THISCALL(dtor), \
NULL, \
& type ## _cxx_type_table \
};
#else
#define DEFINE_RTTI_DATA(name, off, base_classes_no, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
static const type_info name ## _type_info = { \
&MSVCP_type_info_vtable, \
NULL, \
mangled_name \
}; \
\
static rtti_base_descriptor name ## _rtti_base_descriptor = { \
0xdeadbeef, \
base_classes_no, \
{ 0, -1, 0}, \
64 \
}; \
\
static rtti_base_array name ## _rtti_base_array = { \
{ \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef, \
} \
}; \
\
static rtti_object_hierarchy name ## _hierarchy = { \
0, \
0, \
base_classes_no+1, \
0xdeadbeef \
}; \
\
rtti_object_locator name ## _rtti = { \
1, \
off, \
0, \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef \
};\
\
static void init_ ## name ## _rtti(char *base) \
{ \
name ## _rtti_base_descriptor.type_descriptor = (char*)&name ## _type_info - base; \
name ## _rtti_base_array.bases[0] = (char*)&name ## _rtti_base_descriptor - base; \
name ## _rtti_base_array.bases[1] = (char*)cl1 - base; \
name ## _rtti_base_array.bases[2] = (char*)cl2 - base; \
name ## _rtti_base_array.bases[3] = (char*)cl3 - base; \
name ## _rtti_base_array.bases[4] = (char*)cl4 - base; \
name ## _rtti_base_array.bases[5] = (char*)cl5 - base; \
name ## _rtti_base_array.bases[6] = (char*)cl6 - base; \
name ## _rtti_base_array.bases[7] = (char*)cl7 - base; \
name ## _rtti_base_array.bases[8] = (char*)cl8 - base; \
name ## _rtti_base_array.bases[9] = (char*)cl9 - base; \
name ## _hierarchy.base_classes = (char*)&name ## _rtti_base_array - base; \
name ## _rtti.type_descriptor = (char*)&name ## _type_info - base; \
name ## _rtti.type_hierarchy = (char*)&name ## _hierarchy - base; \
name ## _rtti.object_locator = (char*)&name ## _rtti - base; \
}
#define DEFINE_CXX_DATA(type, base_no, cl1, cl2, dtor) \
\
static cxx_type_info type ## _cxx_type_info = { \
0, \
0xdeadbeef, \
{ 0, -1, 0 }, \
sizeof(type), \
0xdeadbeef \
}; \
\
static cxx_type_info_table type ## _cxx_type_table = { \
base_no+1, \
{ \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef \
} \
}; \
\
static cxx_exception_type type ##_cxx_type = { \
0, \
0xdeadbeef, \
0, \
0xdeadbeef \
}; \
\
static void init_ ## type ## _cxx(char *base) \
{ \
type ## _cxx_type_info.type_info = (char *)&type ## _type_info - base; \
type ## _cxx_type_info.copy_ctor = (char *)MSVCP_ ## type ## _copy_ctor - base; \
type ## _cxx_type_table.info[0] = (char *)&type ## _cxx_type_info - base; \
type ## _cxx_type_table.info[1] = (char *)cl1 - base; \
type ## _cxx_type_table.info[2] = (char *)cl2 - base; \
type ## _cxx_type.destructor = (char *)dtor - base; \
type ## _cxx_type.type_info_table = (char *)&type ## _cxx_type_table - base; \
}
#endif
#define DEFINE_RTTI_DATA0(name, off, mangled_name) \
DEFINE_RTTI_DATA(name, off, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
#define DEFINE_RTTI_DATA1(name, off, cl1, mangled_name) \
DEFINE_RTTI_DATA(name, off, 1, cl1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
#define DEFINE_RTTI_DATA2(name, off, cl1, cl2, mangled_name) \
DEFINE_RTTI_DATA(name, off, 2, cl1, cl2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
#define DEFINE_RTTI_DATA3(name, off, cl1, cl2, cl3, mangled_name) \
DEFINE_RTTI_DATA(name, off, 3, cl1, cl2, cl3, NULL, NULL, NULL, NULL, NULL, NULL, mangled_name)
#define DEFINE_RTTI_DATA4(name, off, cl1, cl2, cl3, cl4, mangled_name) \
DEFINE_RTTI_DATA(name, off, 4, cl1, cl2, cl3, cl4, NULL, NULL, NULL, NULL, NULL, mangled_name)
#define DEFINE_RTTI_DATA8(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, mangled_name) \
DEFINE_RTTI_DATA(name, off, 8, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, NULL, mangled_name)
#define DEFINE_RTTI_DATA9(name, off, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name) \
DEFINE_RTTI_DATA(name, off, 9, cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8, cl9, mangled_name)
#define DEFINE_CXX_DATA0(name, dtor) \
DEFINE_CXX_DATA(name, 0, NULL, NULL, dtor)
#define DEFINE_CXX_DATA1(name, cl1, dtor) \
DEFINE_CXX_DATA(name, 1, cl1, NULL, dtor)
#define DEFINE_CXX_DATA2(name, cl1, cl2, dtor) \
DEFINE_CXX_DATA(name, 2, cl1, cl2, dtor)
#ifdef __i386__
#define CALL_VTBL_FUNC(this, off, ret, type, args) ((ret (WINAPI*)type)&vtbl_wrapper_##off)args
extern void *vtbl_wrapper_0;
extern void *vtbl_wrapper_4;
extern void *vtbl_wrapper_8;
extern void *vtbl_wrapper_12;
extern void *vtbl_wrapper_16;
extern void *vtbl_wrapper_20;
extern void *vtbl_wrapper_24;
extern void *vtbl_wrapper_28;
extern void *vtbl_wrapper_32;
extern void *vtbl_wrapper_36;
extern void *vtbl_wrapper_40;
extern void *vtbl_wrapper_44;
extern void *vtbl_wrapper_48;
extern void *vtbl_wrapper_52;
extern void *vtbl_wrapper_56;
#else
#define CALL_VTBL_FUNC(this, off, ret, type, args) ((ret (__cdecl***)type)this)[0][off/4]args
#endif
/* exception object */
typedef void (*vtable_ptr)(void);
typedef struct __exception
{
const vtable_ptr *vtable;
char *name; /* Name of this exception, always a new copy for each object */
int do_free; /* Whether to free 'name' in our dtor */
} exception;
/* Internal: throws selected exception */
typedef enum __exception_type {
EXCEPTION_RERAISE,
EXCEPTION,
EXCEPTION_BAD_ALLOC,
EXCEPTION_BAD_CAST,
EXCEPTION_LOGIC_ERROR,
EXCEPTION_LENGTH_ERROR,
EXCEPTION_OUT_OF_RANGE,
EXCEPTION_INVALID_ARGUMENT,
EXCEPTION_RUNTIME_ERROR,
EXCEPTION_FAILURE,
} exception_type;
void throw_exception(exception_type, const char *);
/* rtti */
typedef struct __type_info
{
const vtable_ptr *vtable;
char *name; /* Unmangled name, allocated lazily */
char mangled[128]; /* Variable length, but we declare it large enough for static RTTI */
} type_info;
extern const vtable_ptr MSVCP_type_info_vtable;
/* offsets for computing the this pointer */
typedef struct
{
int this_offset; /* offset of base class this pointer from start of object */
int vbase_descr; /* offset of virtual base class descriptor */
int vbase_offset; /* offset of this pointer offset in virtual base class descriptor */
} this_ptr_offsets;
/* dlls/msvcrt/cppexcept.h */
typedef void (*cxx_copy_ctor)(void);
#ifndef __x86_64__
typedef struct _rtti_base_descriptor
{
const type_info *type_descriptor;
int num_base_classes;
this_ptr_offsets offsets; /* offsets for computing the this pointer */
unsigned int attributes;
} rtti_base_descriptor;
typedef struct _rtti_base_array
{
const rtti_base_descriptor *bases[10]; /* First element is the class itself */
} rtti_base_array;
typedef struct _rtti_object_hierarchy
{
unsigned int signature;
unsigned int attributes;
int array_len; /* Size of the array pointed to by 'base_classes' */
const rtti_base_array *base_classes;
} rtti_object_hierarchy;
typedef struct _rtti_object_locator
{
unsigned int signature;
int base_class_offset;
unsigned int flags;
const type_info *type_descriptor;
const rtti_object_hierarchy *type_hierarchy;
} rtti_object_locator;
typedef struct
{
UINT flags;
const type_info *type_info;
this_ptr_offsets offsets;
unsigned int size;
cxx_copy_ctor copy_ctor;
} cxx_type_info;
typedef struct
{
UINT count;
const cxx_type_info *info[3];
} cxx_type_info_table;
typedef struct
{
UINT flags;
void (*destructor)(void);
void* /*cxx_exc_custom_handler*/ custom_handler;
const cxx_type_info_table *type_info_table;
} cxx_exception_type;
#else
typedef struct
{
unsigned int type_descriptor;
int num_base_classes;
this_ptr_offsets offsets; /* offsets for computing the this pointer */
unsigned int attributes;
} rtti_base_descriptor;
typedef struct
{
unsigned int bases[10]; /* First element is the class itself */
} rtti_base_array;
typedef struct
{
unsigned int signature;
unsigned int attributes;
int array_len; /* Size of the array pointed to by 'base_classes' */
unsigned int base_classes;
} rtti_object_hierarchy;
typedef struct
{
unsigned int signature;
int base_class_offset;
unsigned int flags;
unsigned int type_descriptor;
unsigned int type_hierarchy;
unsigned int object_locator;
} rtti_object_locator;
typedef struct
{
UINT flags;
unsigned int type_info;
this_ptr_offsets offsets;
unsigned int size;
unsigned int copy_ctor;
} cxx_type_info;
typedef struct
{
UINT count;
unsigned int info[3];
} cxx_type_info_table;
typedef struct
{
UINT flags;
unsigned int destructor;
unsigned int custom_handler;
unsigned int type_info_table;
} cxx_exception_type;
#endif