mirror of https://github.com/x64dbg/zydis
133 lines
4.6 KiB
C
133 lines
4.6 KiB
C
/***************************************************************************************************
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Zyan Disassembler Library (Zydis)
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Original Author : Joel Höner
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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***************************************************************************************************/
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#ifndef ZYDIS_ENCODER_H
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#define ZYDIS_ENCODER_H
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#include <Zydis/Defines.h>
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#include <Zydis/Status.h>
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#include <Zydis/SharedTypes.h>
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#ifdef ZYDIS_ENABLE_FEATURE_DECODER
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# include <Zydis/DecoderTypes.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* ============================================================================================== */
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/* Constants */
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/* ============================================================================================== */
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/**
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* @brief Defines a mask of attributes users may excplicitly ask for.
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*/
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#define ZYDIS_USER_ENCODABLE_ATTRIB_MASK ( \
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ZYDIS_ATTRIB_HAS_LOCK | \
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ZYDIS_ATTRIB_HAS_REP | \
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ZYDIS_ATTRIB_HAS_REPE | \
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ZYDIS_ATTRIB_HAS_REPNE | \
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ZYDIS_ATTRIB_HAS_BOUND | \
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ZYDIS_ATTRIB_HAS_XACQUIRE | \
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ZYDIS_ATTRIB_HAS_XRELEASE | \
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ZYDIS_ATTRIB_HAS_BRANCH_TAKEN | \
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ZYDIS_ATTRIB_HAS_BRANCH_NOT_TAKEN \
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)
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/* ============================================================================================== */
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/* Structs */
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/* ============================================================================================== */
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#define ZYDIS_ENCODER_MAX_OPERANDS (5)
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typedef struct ZydisEncoderOperand_
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{
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ZydisOperandType type;
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ZydisRegister reg;
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struct
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{
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ZydisRegister segment;
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ZydisRegister base;
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ZydisRegister index;
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uint8_t scale;
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uint8_t dispSize;
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int64_t disp;
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} mem;
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struct
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{
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uint16_t segment;
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uint32_t offset;
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} ptr;
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uint8_t immSize;
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union
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{
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uint64_t u;
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int64_t s;
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} imm;
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} ZydisEncoderOperand;
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typedef struct ZydisEncoderRequest_
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{
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ZydisMachineMode machineMode;
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ZydisMnemonic mnemonic;
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ZydisInstructionAttributes attributes;
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ZydisInstructionEncoding encoding;
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uint8_t operandCount;
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ZydisEncoderOperand operands[ZYDIS_ENCODER_MAX_OPERANDS];
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// TODO: AVX stuff
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// TODO: MVEX stuff
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} ZydisEncoderRequest;
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/* ============================================================================================== */
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/* Exported functions */
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/* ============================================================================================== */
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#ifdef ZYDIS_ENABLE_FEATURE_DECODER
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ZYDIS_EXPORT ZydisStatus ZydisEncoderDecodedInstructionToRequest(
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const ZydisDecodedInstruction* in, ZydisEncoderRequest* out);
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#endif
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/**
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* @brief Encodes the given instruction info to byte-code.
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*
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* @param buffer A pointer to the output buffer.
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* @param bufferLen The length of the output buffer.
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* @param request A pointer to the @c ZydisEncoderRequest encode.
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*
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* @return A zydis status code.
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*/
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ZYDIS_EXPORT ZydisStatus ZydisEncoderEncodeInstruction(void* buffer, size_t* bufferLen,
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const ZydisEncoderRequest* request);
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/* ============================================================================================== */
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZYDIS_ENCODER_H */
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