112 lines
4.6 KiB
C
112 lines
4.6 KiB
C
|
/***************************************************************************************************
|
||
|
|
|
||
|
|
Zyan Disassembler Library (Zydis)
|
||
|
|
|
||
|
|
Original Author : Florian Bernd
|
||
|
|
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to deal
|
||
|
|
* in the Software without restriction, including without limitation the rights
|
||
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
* copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in all
|
||
|
|
* copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
* SOFTWARE.
|
||
|
|
|
||
|
|
***************************************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file
|
||
|
|
* Other utility functions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef ZYDIS_UTILS_H
|
||
|
|
#define ZYDIS_UTILS_H
|
||
|
|
|
||
|
|
#include <Zycore/Defines.h>
|
||
|
|
#include <Zydis/DecoderTypes.h>
|
||
|
|
#include <Zydis/Status.h>
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* ============================================================================================== */
|
||
|
|
/* Exported functions */
|
||
|
|
/* ============================================================================================== */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @addtogroup utils Utils
|
||
|
|
* Miscellaneous utility functions. Address translation and other helpers.
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* ---------------------------------------------------------------------------------------------- */
|
||
|
|
/* Address calculation */
|
||
|
|
/* ---------------------------------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
// TODO: Provide a function that works in minimal-mode and does not require a operand parameter
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Calculates the absolute address value for the given instruction operand.
|
||
|
|
*
|
||
|
|
* @param instruction A pointer to the `ZydisDecodedInstruction` struct.
|
||
|
|
* @param operand A pointer to the `ZydisDecodedOperand` struct.
|
||
|
|
* @param runtime_address The runtime address of the instruction.
|
||
|
|
* @param result_address A pointer to the memory that receives the absolute address.
|
||
|
|
*
|
||
|
|
* @return A zyan status code.
|
||
|
|
*
|
||
|
|
* You should use this function in the following cases:
|
||
|
|
* - `IMM` operands with relative address (e.g. `JMP`, `CALL`, ...)
|
||
|
|
* - `MEM` operands with `RIP`/`EIP`-relative address (e.g. `MOV RAX, [RIP+0x12345678]`)
|
||
|
|
* - `MEM` operands with absolute address (e.g. `MOV RAX, [0x12345678]`)
|
||
|
|
* - The displacement needs to get truncated and zero extended
|
||
|
|
*/
|
||
|
|
ZYDIS_EXPORT ZyanStatus ZydisCalcAbsoluteAddress(const ZydisDecodedInstruction* instruction,
|
||
|
|
const ZydisDecodedOperand* operand, ZyanU64 runtime_address, ZyanU64* result_address);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Calculates the absolute address value for the given instruction operand.
|
||
|
|
*
|
||
|
|
* @param instruction A pointer to the `ZydisDecodedInstruction` struct.
|
||
|
|
* @param operand A pointer to the `ZydisDecodedOperand` struct.
|
||
|
|
* @param runtime_address The runtime address of the instruction.
|
||
|
|
* @param register_context A pointer to the `ZydisRegisterContext` struct.
|
||
|
|
* @param result_address A pointer to the memory that receives the absolute target-address.
|
||
|
|
*
|
||
|
|
* @return A zyan status code.
|
||
|
|
*
|
||
|
|
* This function behaves like `ZydisCalcAbsoluteAddress` but takes an additional register-context
|
||
|
|
* argument to allow calculation of addresses depending on runtime register values.
|
||
|
|
*
|
||
|
|
* Note that `IP/EIP/RIP` from the register-context will be ignored in favor of the passed
|
||
|
|
* runtime-address.
|
||
|
|
*/
|
||
|
|
ZYDIS_EXPORT ZyanStatus ZydisCalcAbsoluteAddressEx(const ZydisDecodedInstruction* instruction,
|
||
|
|
const ZydisDecodedOperand* operand, ZyanU64 runtime_address,
|
||
|
|
const ZydisRegisterContext* register_context, ZyanU64* result_address);
|
||
|
|
|
||
|
|
/* ---------------------------------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* ============================================================================================== */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* ZYDIS_UTILS_H */
|