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zydis
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Move encoder to `feature/encoder` branch 

- Won’t be ready until v2.1
This commit is contained in:
Joel Höner 2017-10-17 17:30:36 +02:00
parent c5e418f34f
commit c77c9f2561
7 changed files with 16 additions and 3422 deletions
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30
CMakeLists.txt
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@ -12,9 +12,9 @@ project(Zydis VERSION 2.0)
option(ZYDIS_FEATURE_DECODER
"Enable instruction decoding and formtting functionality"
ON)
option(ZYDIS_FEATURE_ENCODER
"Enable instruction encoding functionality"
OFF)
#option(ZYDIS_FEATURE_ENCODER
# "Enable instruction encoding functionality"
# OFF)
option(ZYDIS_FEATURE_EVEX
"Enable support for EVEX instructions"
ON)
@ -95,9 +95,9 @@ endif ()
if (ZYDIS_FEATURE_DECODER)
target_compile_definitions("Zydis" PUBLIC "ZYDIS_ENABLE_FEATURE_DECODER")
endif ()
if (ZYDIS_FEATURE_ENCODER)
target_compile_definitions("Zydis" PUBLIC "ZYDIS_ENABLE_FEATURE_ENCODER")
endif ()
#if (ZYDIS_FEATURE_ENCODER)
# target_compile_definitions("Zydis" PUBLIC "ZYDIS_ENABLE_FEATURE_ENCODER")
#endif ()
target_sources("Zydis"
PUBLIC
@ -134,15 +134,15 @@ if (ZYDIS_FEATURE_DECODER)
"src/FormatHelper.c")
endif ()
if (ZYDIS_FEATURE_ENCODER)
target_sources("Zydis"
PUBLIC
"${CMAKE_CURRENT_LIST_DIR}/include/Zydis/Encoder.h"
PRIVATE
"src/EncoderData.h"
"src/Encoder.c"
"src/EncoderData.c")
endif ()
#if (ZYDIS_FEATURE_ENCODER)
# target_sources("Zydis"
# PUBLIC
# "${CMAKE_CURRENT_LIST_DIR}/include/Zydis/Encoder.h"
# PRIVATE
# "src/EncoderData.h"
# "src/Encoder.c"
# "src/EncoderData.c")
#endif ()
if (BUILD_SHARED_LIBS AND WIN32)
target_sources("Zydis" PRIVATE "src/VersionInfo.rc")

146
include/Zydis/Encoder.h
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@ -1,146 +0,0 @@
/***************************************************************************************************
Zyan Disassembler Library (Zydis)
Original Author : Joel Höner
* 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
* @brief Functions for (re-)encoding instructions.
*/
#ifndef ZYDIS_ENCODER_H
#define ZYDIS_ENCODER_H
#include <Zydis/Defines.h>
#include <Zydis/Status.h>
#include <Zydis/Register.h>
#include <Zydis/Mnemonic.h>
#include <Zydis/SharedTypes.h>
#ifdef ZYDIS_ENABLE_FEATURE_DECODER
# include <Zydis/DecoderTypes.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* ============================================================================================== */
/* Constants */
/* ============================================================================================== */
/**
* @brief Defines a mask of attributes users may excplicitly ask for.
*/
#define ZYDIS_USER_ENCODABLE_ATTRIB_MASK ( \
ZYDIS_ATTRIB_HAS_LOCK | \
ZYDIS_ATTRIB_HAS_REP | \
ZYDIS_ATTRIB_HAS_REPE | \
ZYDIS_ATTRIB_HAS_REPNE | \
ZYDIS_ATTRIB_HAS_BOUND | \
ZYDIS_ATTRIB_HAS_XACQUIRE | \
ZYDIS_ATTRIB_HAS_XRELEASE | \
ZYDIS_ATTRIB_HAS_BRANCH_TAKEN | \
ZYDIS_ATTRIB_HAS_BRANCH_NOT_TAKEN \
)
/* ============================================================================================== */
/* Structs */
/* ============================================================================================== */
#define ZYDIS_ENCODER_MAX_OPERANDS (5)
typedef struct ZydisEncoderOperand_
{
ZydisOperandType type;
ZydisRegister reg;
struct
{
ZydisRegister segment;
ZydisRegister base;
ZydisRegister index;
uint8_t scale;
uint8_t dispSize;
int64_t disp;
} mem;
struct
{
uint16_t segment;
uint32_t offset;
} ptr;
union
{
uint64_t u;
int64_t s;
} imm;
} ZydisEncoderOperand;
typedef struct ZydisEncoderRequest_
{
ZydisMachineMode machineMode;
ZydisMnemonic mnemonic;
ZydisInstructionAttributes attributes;
ZydisInstructionEncoding encoding;
uint8_t operandCount;
ZydisEncoderOperand operands[ZYDIS_ENCODER_MAX_OPERANDS];
struct
{
ZydisVectorLength vectorLength;
struct
{
ZydisMaskMode mode;
ZydisRegister reg;
} mask;
} avx;
// TODO: mvex stuff
} ZydisEncoderRequest;
/* ============================================================================================== */
/* Exported functions */
/* ============================================================================================== */
#ifdef ZYDIS_ENABLE_FEATURE_DECODER
ZYDIS_EXPORT ZydisStatus ZydisEncoderDecodedInstructionToRequest(
const ZydisDecodedInstruction* in, ZydisEncoderRequest* out);
#endif
/**
* @brief Encodes the given instruction request to byte-code.
*
* @param buffer A pointer to the output buffer.
* @param bufferLen The length of the output buffer.
* @param request A pointer to the @c ZydisEncoderRequest encode.
*
* @return A zydis status code.
*/
ZYDIS_EXPORT ZydisStatus ZydisEncoderEncodeInstruction(void* buffer, size_t* bufferLen,
const ZydisEncoderRequest* request);
/* ============================================================================================== */
#ifdef __cplusplus
}
#endif
#endif /* ZYDIS_ENCODER_H */

1482
src/Encoder.c
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File diff suppressed because it is too large Load Diff

117
src/EncoderData.c
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@ -1,117 +0,0 @@
/***************************************************************************************************
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.
***************************************************************************************************/
#include <EncoderData.h>
/* ============================================================================================== */
/* Enums and types */
/* ============================================================================================== */
// MSVC does not like types other than (un-)signed int for bitfields
#ifdef ZYDIS_MSVC
# pragma warning(push)
# pragma warning(disable:4214)
#endif
#pragma pack(push, 1)
/* ---------------------------------------------------------------------------------------------- */
/* Encodable instructions */
/* ---------------------------------------------------------------------------------------------- */
/**
* @brief Defines the @c ZydisEncodableInstructions struct.
*/
typedef struct ZydisEncodableInstructions_
{
uint8_t count;
uint16_t reference;
} ZydisEncodableInstructions;
/* ---------------------------------------------------------------------------------------------- */
#pragma pack(pop)
#ifdef ZYDIS_MSVC
# pragma warning(pop)
#endif
/* ============================================================================================== */
/* Data tables */
/* ============================================================================================== */
/* ---------------------------------------------------------------------------------------------- */
/* Forward declarations */
/* ---------------------------------------------------------------------------------------------- */
/**
* @brief Contains an item with a reference to all encodable instructions for every mnemonic.
*/
extern const ZydisEncodableInstructions mnemonicLookup[];
/**
* @brief Contains the definition-data for all encodable instructions.
*/
extern const ZydisEncodableInstruction encodableInstructions[];
/* ---------------------------------------------------------------------------------------------- */
/* Mnemonic lookup table */
/* ---------------------------------------------------------------------------------------------- */
#include <Generated/EncoderLookup.inc>
/* ---------------------------------------------------------------------------------------------- */
/* Encodable instructions */
/* ---------------------------------------------------------------------------------------------- */
#include <Generated/EncodableInstructions.inc>
/* ---------------------------------------------------------------------------------------------- */
/* ============================================================================================== */
/* Functions */
/* ============================================================================================== */
/* ---------------------------------------------------------------------------------------------- */
/* Encodable instructions */
/* ---------------------------------------------------------------------------------------------- */
uint8_t ZydisGetEncodableInstructions(ZydisMnemonic mnemonic,
const ZydisEncodableInstruction** instruction)
{
if (mnemonic >= ZYDIS_ARRAY_SIZE(mnemonicLookup))
{
*instruction = NULL;
return 0;
}
const ZydisEncodableInstructions* descriptor = &mnemonicLookup[mnemonic];
*instruction = &encodableInstructions[descriptor->reference];
return descriptor->count;
}
/* ---------------------------------------------------------------------------------------------- */
/* ============================================================================================== */

115
src/EncoderData.h
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@ -1,115 +0,0 @@
/***************************************************************************************************
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.
***************************************************************************************************/
#ifndef ZYDIS_ENCODERDATA_H
#define ZYDIS_ENCODERDATA_H
#include <Zydis/Defines.h>
#include <Zydis/Mnemonic.h>
#include <Zydis/SharedTypes.h>
#ifdef __cplusplus
extern "C" {
#endif
/* ============================================================================================== */
/* Enums and types */
/* ============================================================================================== */
// MSVC does not like types other than (un-)signed int for bitfields
#ifdef ZYDIS_MSVC
# pragma warning(push)
# pragma warning(disable:4214)
#endif
#pragma pack(push, 1)
/* ---------------------------------------------------------------------------------------------- */
/* Encodable instruction */
/* ---------------------------------------------------------------------------------------------- */
/**
* @brief Defines the @c ZydisEncodableInstruction struct.
*/
typedef struct ZydisEncodableInstruction_
{
uint16_t definitionReference ZYDIS_BITFIELD(13);
ZydisInstructionEncoding encoding ZYDIS_BITFIELD( 3);
uint8_t opcode ZYDIS_BITFIELD( 8);
ZydisOpcodeMap opcodeMap ZYDIS_BITFIELD( 3);
uint8_t mode ZYDIS_BITFIELD( 3);
uint8_t operandSize ZYDIS_BITFIELD( 3);
uint8_t addressSize ZYDIS_BITFIELD( 3);
uint8_t modrmMod ZYDIS_BITFIELD( 4);
ZydisBool forceModrmReg ZYDIS_BITFIELD( 1);
uint8_t modrmReg ZYDIS_BITFIELD( 8);
ZydisBool forceModrmRm ZYDIS_BITFIELD( 1);
uint8_t modrmRm ZYDIS_BITFIELD( 8);
uint8_t mandatoryPrefix ZYDIS_BITFIELD( 3);
uint8_t vectorLength ZYDIS_BITFIELD( 2);
uint8_t rexW ZYDIS_BITFIELD( 1);
uint8_t rexB ZYDIS_BITFIELD( 2);
uint8_t evexB ZYDIS_BITFIELD( 1);
uint8_t mvexE ZYDIS_BITFIELD( 2);
} ZydisEncodableInstruction;
/* ---------------------------------------------------------------------------------------------- */
#pragma pack(pop)
#ifdef ZYDIS_MSVC
# pragma warning(pop)
#endif
/* ============================================================================================== */
/* Functions */
/* ============================================================================================== */
/* ---------------------------------------------------------------------------------------------- */
/* Encodable instructions */
/* ---------------------------------------------------------------------------------------------- */
/**
* @brief Returns all encodable instructions matching the given `mnemonic`.
*
* @param mnemonic The mnemonic.
* @param instruction A pointer to the variable that receives a pointer to the first
* `ZydisEncodableInstruction` struct.
*
* @return The number of encodable instructions for the given mnemonic.
*/
ZYDIS_NO_EXPORT uint8_t ZydisGetEncodableInstructions(ZydisMnemonic mnemonic,
const ZydisEncodableInstruction** instruction);
/* ---------------------------------------------------------------------------------------------- */
/* ============================================================================================== */
#ifdef __cplusplus
}
#endif
#endif /* ZYDIS_ENCODERDATA_H */

1546
src/Generated/EncoderLookup.inc
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File diff suppressed because it is too large Load Diff

2
tools/ZydisDisasm.c
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@ -31,7 +31,7 @@
#include <string.h>
#include <errno.h>
#include <Zydis/Zydis.h>
#include "Zydis/Encoder.h"
//#include "Zydis/Encoder.h"
/* ============================================================================================== */
/* Entry point */