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代码还原,IDA中使用的宏

发布时间:2020-12-13 22:32:30 所属栏目:Linux 来源:网络整理
导读:在IDA7.0中的定义文件拷贝的. 如果想使用,直接去IDA的 plugins 插件目录下.包含它的 **defs.h"" 如下: /* ? ?? This file contains definitions used by the Hex-Rays decompiler output. ?? It has type definitions and convenience macros to make the ??

在IDA7.0中的定义文件拷贝的.

如果想使用,直接去IDA的plugins插件目录下.包含它的 **defs.h""
如下:

/*

?

?? This file contains definitions used by the Hex-Rays decompiler output.

?? It has type definitions and convenience macros to make the

?? output more readable.

?

?? Copyright (c) 2007-2017 Hex-Rays

?

*/

?

#ifndef HEXRAYS_DEFS_H

#define HEXRAYS_DEFS_H

?

#if defined(__GNUC__)

? typedef????????? long long ll;

? typedef unsigned long long ull;

? #define __int64 long long

? #define __int32 int

? #define __int16 short

? #define __int8? char

? #define MAKELL(num) num ## LL

? #define FMT_64 "ll"

#elif defined(_MSC_VER)

? typedef????????? __int64 ll;

? typedef unsigned __int64 ull;

? #define MAKELL(num) num ## i64

? #define FMT_64 "I64"

#elif defined (__BORLANDC__)

? typedef????????? __int64 ll;

? typedef unsigned __int64 ull;

? #define MAKELL(num) num ## i64

? #define FMT_64 "L"

#else

? #error "unknown compiler"

#endif

typedef unsigned int uint;

typedef unsigned char uchar;

typedef unsigned short ushort;

typedef unsigned long ulong;

?

typedef????????? char?? int8;

typedef?? signed char?? sint8;

typedef unsigned char?? uint8;

typedef????????? short? int16;

typedef?? signed short? sint16;

typedef unsigned short? uint16;

typedef????????? int??? int32;

typedef?? signed int??? sint32;

typedef unsigned int??? uint32;

typedef ll????????????? int64;

typedef ll????????????? sint64;

typedef ull???????????? uint64;

?

// Partially defined types. They are used when the decompiler does not know

// anything about the type except its size.

#define _BYTE? uint8

#define _WORD? uint16

#define _DWORD uint32

#define _QWORD uint64

#if !defined(_MSC_VER)

#define _LONGLONG __int128

#endif

?

// Non-standard boolean types. They are used when the decompiler can not use

// the standard "bool" type because of the size mistmatch but the possible

// values are only 0 and 1. See also ‘BOOL‘ type below.

typedef int8 _BOOL1;

typedef int16 _BOOL2;

typedef int32 _BOOL4;

?

#ifndef _WINDOWS_

typedef int8 BYTE;

typedef int16 WORD;

typedef int32 DWORD;

typedef int32 LONG;

typedef int BOOL;?????? // uppercase BOOL is usually 4 bytes

#endif

typedef int64 QWORD;

#ifndef __cplusplus

typedef int bool;?????? // we want to use bool in our C programs

#endif

?

#define __pure????????? // pure function: always returns the same value,has no

??????????????????????? // side effects

?

// Non-returning function

#if defined(__GNUC__)

#define __noreturn? __attribute__((noreturn))

#else

#define __noreturn? __declspec(noreturn)

#endif

?

?

#ifndef NULL

#define NULL 0

#endif

?

// Some convenience macros to make partial accesses nicer

#define LAST_IND(x,part_type)??? (sizeof(x)/sizeof(part_type) - 1)

#if defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN

#? define LOW_IND(x,part_type)?? LAST_IND(x,part_type)

#? define HIGH_IND(x,part_type)? 0

#else

#? define HIGH_IND(x,part_type)? LAST_IND(x,part_type)

#? define LOW_IND(x,part_type)?? 0

#endif

// first unsigned macros:

#define BYTEn(x,n)?? (*((_BYTE*)&(x)+n))

#define WORDn(x,n)?? (*((_WORD*)&(x)+n))

#define DWORDn(x,n)? (*((_DWORD*)&(x)+n))

?

#define LOBYTE(x)? BYTEn(x,LOW_IND(x,_BYTE))

#define LOWORD(x)? WORDn(x,_WORD))

#define LODWORD(x) DWORDn(x,_DWORD))

#define HIBYTE(x)? BYTEn(x,HIGH_IND(x,_BYTE))

#define HIWORD(x)? WORDn(x,_WORD))

#define HIDWORD(x) DWORDn(x,_DWORD))

#define BYTE1(x)?? BYTEn(x,? 1)???????? // byte 1 (counting from 0)

#define BYTE2(x)?? BYTEn(x,? 2)

#define BYTE3(x)?? BYTEn(x,? 3)

#define BYTE4(x)?? BYTEn(x,? 4)

#define BYTE5(x)?? BYTEn(x,? 5)

#define BYTE6(x)?? BYTEn(x,? 6)

#define BYTE7(x)?? BYTEn(x,? 7)

#define BYTE8(x)?? BYTEn(x,? 8)

#define BYTE9(x)?? BYTEn(x,? 9)

#define BYTE10(x)? BYTEn(x,10)

#define BYTE11(x)? BYTEn(x,11)

#define BYTE12(x)? BYTEn(x,12)

#define BYTE13(x)? BYTEn(x,13)

#define BYTE14(x)? BYTEn(x,14)

#define BYTE15(x)? BYTEn(x,15)

#define WORD1(x)?? WORDn(x,? 1)

#define WORD2(x)?? WORDn(x,? 2)???????? // third word of the object,unsigned

#define WORD3(x)?? WORDn(x,? 3)

#define WORD4(x)?? WORDn(x,? 4)

#define WORD5(x)?? WORDn(x,? 5)

#define WORD6(x)?? WORDn(x,? 6)

#define WORD7(x)?? WORDn(x,? 7)

?

// now signed macros (the same but with sign extension)

#define SBYTEn(x,n)?? (*((int8*)&(x)+n))

#define SWORDn(x,n)?? (*((int16*)&(x)+n))

#define SDWORDn(x,n)? (*((int32*)&(x)+n))

?

#define SLOBYTE(x)? SBYTEn(x,int8))

#define SLOWORD(x)? SWORDn(x,int16))

#define SLODWORD(x) SDWORDn(x,int32))

#define SHIBYTE(x)? SBYTEn(x,int8))

#define SHIWORD(x)? SWORDn(x,int16))

#define SHIDWORD(x) SDWORDn(x,int32))

#define SBYTE1(x)?? SBYTEn(x,? 1)

#define SBYTE2(x)?? SBYTEn(x,? 2)

#define SBYTE3(x)?? SBYTEn(x,? 3)

#define SBYTE4(x)?? SBYTEn(x,? 4)

#define SBYTE5(x)?? SBYTEn(x,? 5)

#define SBYTE6(x)?? SBYTEn(x,? 6)

#define SBYTE7(x)?? SBYTEn(x,? 7)

#define SBYTE8(x)?? SBYTEn(x,? 8)

#define SBYTE9(x)?? SBYTEn(x,? 9)

#define SBYTE10(x)? SBYTEn(x,10)

#define SBYTE11(x)? SBYTEn(x,11)

#define SBYTE12(x)? SBYTEn(x,12)

#define SBYTE13(x)? SBYTEn(x,13)

#define SBYTE14(x)? SBYTEn(x,14)

#define SBYTE15(x)? SBYTEn(x,15)

#define SWORD1(x)?? SWORDn(x,? 1)

#define SWORD2(x)?? SWORDn(x,? 2)

#define SWORD3(x)?? SWORDn(x,? 3)

#define SWORD4(x)?? SWORDn(x,? 4)

#define SWORD5(x)?? SWORDn(x,? 5)

#define SWORD6(x)?? SWORDn(x,? 6)

#define SWORD7(x)?? SWORDn(x,? 7)

?

?

// Helper functions to represent some assembly instructions.

?

#ifdef __cplusplus

?

// compile time assertion

#define __CASSERT_N0__(l) COMPILE_TIME_ASSERT_ ## l

#define __CASSERT_N1__(l) __CASSERT_N0__(l)

#define CASSERT(cnd) typedef char __CASSERT_N1__(__LINE__) [(cnd) ? 1 : -1]

?

// check that unsigned multiplication does not overflow

template<class T> bool is_mul_ok(T count,T elsize)

{

? CASSERT((T)(-1) > 0); // make sure T is unsigned

? if ( elsize? == 0 || count == 0 )

??? return true;

? return count <= ((T)(-1)) / elsize;

}

?

// multiplication that saturates (yields the biggest value) instead of overflowing

// such a construct is useful in "operator new[]"

template<class T> bool saturated_mul(T count,T elsize)

{

? return is_mul_ok(count,elsize) ? count * elsize : T(-1);

}

?

#include <stddef.h> // for size_t

?

// memcpy() with determined behavoir: it always copies

// from the start to the end of the buffer

// note: it copies byte by byte,so it is not equivalent to,for example,rep movsd

inline void *qmemcpy(void *dst,const void *src,size_t cnt)

{

? char *out = (char *)dst;

? const char *in = (const char *)src;

? while ( cnt > 0 )

? {

??? *out++ = *in++;

??? --cnt;

? }

? return dst;

}

?

// Generate a reference to pair of operands

template<class T>? int16 __PAIR__( int8? high,T low) { return ((( int16)high) << sizeof(high)*8) | uint8(low); }

template<class T>? int32 __PAIR__( int16 high,T low) { return ((( int32)high) << sizeof(high)*8) | uint16(low); }

template<class T>? int64 __PAIR__( int32 high,T low) { return ((( int64)high) << sizeof(high)*8) | uint32(low); }

template<class T> uint16 __PAIR__(uint8? high,T low) { return (((uint16)high) << sizeof(high)*8) | uint8(low); }

template<class T> uint32 __PAIR__(uint16 high,T low) { return (((uint32)high) << sizeof(high)*8) | uint16(low); }

template<class T> uint64 __PAIR__(uint32 high,T low) { return (((uint64)high) << sizeof(high)*8) | uint32(low); }

?

// rotate left

template<class T> T __ROL__(T value,int count)

{

? const uint nbits = sizeof(T) * 8;

?

? if ( count > 0 )

? {

??? count %= nbits;

??? T high = value >> (nbits - count);

??? if ( T(-1) < 0 ) // signed value

????? high &= ~((T(-1) << count));

??? value <<= count;

??? value |= high;

? }

? else

? {

??? count = -count % nbits;

??? T low = value << (nbits - count);

??? value >>= count;

??? value |= low;

? }

? return value;

}

?

inline uint8? __ROL1__(uint8? value,int count) { return __ROL__((uint8)value,count); }

inline uint16 __ROL2__(uint16 value,int count) { return __ROL__((uint16)value,count); }

inline uint32 __ROL4__(uint32 value,int count) { return __ROL__((uint32)value,count); }

inline uint64 __ROL8__(uint64 value,int count) { return __ROL__((uint64)value,count); }

inline uint8? __ROR1__(uint8? value,-count); }

inline uint16 __ROR2__(uint16 value,-count); }

inline uint32 __ROR4__(uint32 value,-count); }

inline uint64 __ROR8__(uint64 value,-count); }

?

// carry flag of left shift

template<class T> int8 __MKCSHL__(T value,uint count)

{

? const uint nbits = sizeof(T) * 8;

? count %= nbits;

?

? return (value >> (nbits-count)) & 1;

}

?

// carry flag of right shift

template<class T> int8 __MKCSHR__(T value,uint count)

{

? return (value >> (count-1)) & 1;

}

?

// sign flag

template<class T> int8 __SETS__(T x)

{

? if ( sizeof(T) == 1 )

??? return int8(x) < 0;

? if ( sizeof(T) == 2 )

??? return int16(x) < 0;

? if ( sizeof(T) == 4 )

??? return int32(x) < 0;

? return int64(x) < 0;

}

?

// overflow flag of subtraction (x-y)

template<class T,class U> int8 __OFSUB__(T x,U y)

{

? if ( sizeof(T) < sizeof(U) )

? {

??? U x2 = x;

??? int8 sx = __SETS__(x2);

??? return (sx ^ __SETS__(y)) & (sx ^ __SETS__(x2-y));

? }

? else

? {

??? T y2 = y;

??? int8 sx = __SETS__(x);

??? return (sx ^ __SETS__(y2)) & (sx ^ __SETS__(x-y2));

? }

}

?

// overflow flag of addition (x+y)

template<class T,class U> int8 __OFADD__(T x,U y)

{

? if ( sizeof(T) < sizeof(U) )

? {

??? U x2 = x;

??? int8 sx = __SETS__(x2);

??? return ((1 ^ sx) ^ __SETS__(y)) & (sx ^ __SETS__(x2+y));

? }

? else

? {

??? T y2 = y;

??? int8 sx = __SETS__(x);

??? return ((1 ^ sx) ^ __SETS__(y2)) & (sx ^ __SETS__(x+y2));

? }

}

?

// carry flag of subtraction (x-y)

template<class T,class U> int8 __CFSUB__(T x,U y)

{

? int size = sizeof(T) > sizeof(U) ? sizeof(T) : sizeof(U);

? if ( size == 1 )

??? return uint8(x) < uint8(y);

? if ( size == 2 )

??? return uint16(x) < uint16(y);

? if ( size == 4 )

??? return uint32(x) < uint32(y);

? return uint64(x) < uint64(y);

}

?

// carry flag of addition (x+y)

template<class T,class U> int8 __CFADD__(T x,U y)

{

? int size = sizeof(T) > sizeof(U) ? sizeof(T) : sizeof(U);

? if ( size == 1 )

??? return uint8(x) > uint8(x+y);

? if ( size == 2 )

??? return uint16(x) > uint16(x+y);

? if ( size == 4 )

??? return uint32(x) > uint32(x+y);

? return uint64(x) > uint64(x+y);

}

?

#else

// The following definition is not quite correct because it always returns

// uint64. The above C++ functions are good,though.

#define __PAIR__(high,low) (((uint64)(high)<<sizeof(high)*8) | low)

// For C,we just provide macros,they are not quite correct.

#define __ROL__(x,y) __rotl__(x,y)????? // Rotate left

#define __ROR__(x,y) __rotr__(x,y)????? // Rotate right

#define __CFSHL__(x,y) invalid_operation // Generate carry flag for (x<<y)

#define __CFSHR__(x,y) invalid_operation // Generate carry flag for (x>>y)

#define __CFADD__(x,y) invalid_operation // Generate carry flag for (x+y)

#define __CFSUB__(x,y) invalid_operation // Generate carry flag for (x-y)

#define __OFADD__(x,y) invalid_operation // Generate overflow flag for (x+y)

#define __OFSUB__(x,y) invalid_operation // Generate overflow flag for (x-y)

#endif

?

// No definition for rcl/rcr because the carry flag is unknown

#define __RCL__(x,y)??? invalid_operation // Rotate left thru carry

#define __RCR__(x,y)??? invalid_operation // Rotate right thru carry

#define __MKCRCL__(x,y) invalid_operation // Generate carry flag for a RCL

#define __MKCRCR__(x,y) invalid_operation // Generate carry flag for a RCR

#define __SETP__(x,y)?? invalid_operation // Generate parity flag for (x-y)

?

// In the decompilation listing there are some objects declarared as _UNKNOWN

// because we could not determine their types. Since the C compiler does not

// accept void item declarations,we replace them by anything of our choice,

// for example a char:

?

#define _UNKNOWN char

?

#ifdef _MSC_VER

#define snprintf _snprintf

#define vsnprintf _vsnprintf

#endif

?

#endif // HEXRAYS_DEFS_H

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