fd102c01ea
does not account for arrays of instructions provided by one virtual instruction trace cache entry -> passing the current instruction directly. ALUInstr not yet completely tested. git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1704 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
#ifndef __UDIS86_HPP__
|
|
#define __UDIS86_HPP__
|
|
|
|
#include <udis86.h>
|
|
#include "sal/bochs/BochsRegister.hpp"
|
|
|
|
/**
|
|
* \class Udis86
|
|
*
|
|
* \brief Class to disassemble instructions
|
|
*
|
|
* This class disassembles a stream of machine code instruction
|
|
* by instruction.
|
|
* It provides a (thin) wrapper around the C API of UDIS86.
|
|
*/
|
|
class Udis86
|
|
{
|
|
private:
|
|
ud_t ud_obj; //<! the ud object of udis86
|
|
unsigned char *udis_instr; //<! the instruction buffer for UDIs86
|
|
size_t udis_instr_size; //<! the size of the instruction buffer
|
|
public:
|
|
Udis86(unsigned char const *instr, size_t size, fail::address_t ip);
|
|
~Udis86();
|
|
/**
|
|
* retrieves the private ud structure of udis86
|
|
* @returns a reference pointer to a ud_t variable
|
|
*/
|
|
inline ud_t const &getCurrentState() const { return ud_obj; }
|
|
/**
|
|
* Tries to decode the next instruction from the given buffer.
|
|
* @returns \c true if a new instruction could be retrieved, \c false if the object has expired
|
|
*/
|
|
bool fetchNextInstruction();
|
|
/**
|
|
* Returns the FailBochs equivalent to a UDIS86 GPR identifier.
|
|
* Attention: this only returns either 32-bit or 64-bit registers, no general IDs
|
|
* @param udisReg the udis86 GPR ID
|
|
* @returns the FailBochs GPR ID, usable with the BochsRegisterManager class
|
|
*/
|
|
static fail::GPRegisterId udisGPRToFailBochsGPR(ud_type_t udisReg);
|
|
};
|
|
|
|
#endif // __UDIS86_HPP__
|