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zydis
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Minor bugfixes and refactorings

This commit is contained in:
flobernd 2016-11-21 14:55:17 +01:00
parent c4dce1adb9
commit be56ef937d
13 changed files with 422 additions and 252 deletions
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8
examples/ZydisPE.c
View File

@ -223,7 +223,7 @@ static ZydisStatus ZydisBufferAppendImport(char* buffer, size_t bufferLen, size_
++descriptor; ++descriptor;
} }
} }
return ZYDIS_STATUS_USER + 1000; return 1337 + 1000;
} }
/** /**
@ -387,14 +387,14 @@ int main(int argc, char** argv)
switch (info.mode) switch (info.mode)
{ {
case ZYDIS_DISASSEMBLER_MODE_16BIT: case ZYDIS_DISASSEMBLER_MODE_16BIT:
printf("%04llX ", info.instrAddress);
break;
case ZYDIS_DISASSEMBLER_MODE_32BIT: case ZYDIS_DISASSEMBLER_MODE_32BIT:
printf("%08llX ", info.instrAddress); printf("%08llX ", info.instrAddress);
break; break;
case ZYDIS_DISASSEMBLER_MODE_64BIT: case ZYDIS_DISASSEMBLER_MODE_64BIT:
printf("%016llX ", info.instrAddress); printf("%016llX ", info.instrAddress);
break; break;
default:
break;
} }
for (int j = 0; j < info.length; ++j) for (int j = 0; j < info.length; ++j)
{ {
@ -404,7 +404,7 @@ int main(int argc, char** argv)
{ {
printf(" "); printf(" ");
} }
if (info.flags & ZYDIS_IFLAG_ERROR_MASK) if (info.instrFlags & ZYDIS_INSTRFLAG_ERROR_MASK)
{ {
printf(" db %02x\n", info.data[0]); printf(" db %02x\n", info.data[0]);
continue; continue;

4
include/Zydis/Decoder.h
View File

@ -48,11 +48,11 @@ typedef uint32_t ZydisDecoderFlags;
/** /**
* @brief Set this flag if you do not want @c ZydisDecoderDecodeNextInstruction to fail with * @brief Set this flag if you do not want @c ZydisDecoderDecodeNextInstruction to fail with
* @c ZYDIS_STATUS_INVALID_INSTRUCTION, if an invalid instruction was found. * @c ZYDIS_STATUS_DECODING_ERROR, if an invalid instruction was found.
* *
* If this flag is set, @c ZydisDecoderDecodeNextInstruction just skips one byte and * If this flag is set, @c ZydisDecoderDecodeNextInstruction just skips one byte and
* returns @c ZYDIS_STATUS_SUCCESS. The returned @c ZydisInstructionInfo struct will * returns @c ZYDIS_STATUS_SUCCESS. The returned @c ZydisInstructionInfo struct will
* have one of the @c ZYDIS_IFLAG_ERROR_MASK flags set. * have one of the @c ZYDIS_INSTRFLAG_ERROR_MASK flags set.
*/ */
#define ZYDIS_DECODER_FLAG_SKIP_DATA 0x00000001 #define ZYDIS_DECODER_FLAG_SKIP_DATA 0x00000001
/** /**

79
include/Zydis/Formatter.h
View File

@ -38,15 +38,11 @@ extern "C" {
#endif #endif
/* ============================================================================================== */ /* ============================================================================================== */
/* Instruction formatter */ /* Enums and types */
/* ============================================================================================== */ /* ============================================================================================== */
/* ---------------------------------------------------------------------------------------------- */
/* Enums and types */
/* ---------------------------------------------------------------------------------------------- */
/** /**
* @brief Defines the zydis formatter-style datatype. * @brief Defines the @c ZydisFormatterStyle datatype.
*/ */
typedef uint8_t ZydisFormatterStyle; typedef uint8_t ZydisFormatterStyle;
@ -62,7 +58,7 @@ enum ZydisFormatterStyles
}; };
/** /**
* @brief Defines the zydis formatter-flags datatype. * @brief Defines the @c ZydisFormatterFlags datatype.
*/ */
typedef uint8_t ZydisFormatterFlags; typedef uint8_t ZydisFormatterFlags;
@ -73,7 +69,7 @@ typedef uint8_t ZydisFormatterFlags;
#define ZYDIS_FORMATTER_FLAG_ALWAYS_DISPLAY_MEMORY_SEGMENT 0x10 #define ZYDIS_FORMATTER_FLAG_ALWAYS_DISPLAY_MEMORY_SEGMENT 0x10
/** /**
* @brief Defines the zydis address-format datatype. * @brief Defines the @c ZydisFormatterAddressFormat datatype.
*/ */
typedef uint8_t ZydisFormatterAddressFormat; typedef uint8_t ZydisFormatterAddressFormat;
@ -82,10 +78,11 @@ typedef uint8_t ZydisFormatterAddressFormat;
*/ */
enum ZydisFormatterAddressFormat enum ZydisFormatterAddressFormat
{ {
ZYDIS_FORMATTER_ADDR_DEFAULT,
/** /**
* @brief Displays absolute addresses instead of relative ones. * @brief Displays absolute addresses instead of relative ones.
*/ */
ZYDIS_FORMATTER_ADDRESS_ABSOLUTE, ZYDIS_FORMATTER_ADDR_ABSOLUTE,
/** /**
* @brief Uses signed hexadecimal values to display relative addresses. * @brief Uses signed hexadecimal values to display relative addresses.
* *
@ -93,7 +90,7 @@ enum ZydisFormatterAddressFormat
* "JMP 0x20" * "JMP 0x20"
* "JMP -0x20" * "JMP -0x20"
*/ */
ZYDIS_FORMATTER_ADDRESS_RELATIVE_SIGNED, ZYDIS_FORMATTER_ADDR_RELATIVE_SIGNED,
/** /**
* @brief Uses unsigned hexadecimal values to display relative addresses. * @brief Uses unsigned hexadecimal values to display relative addresses.
* *
@ -101,11 +98,11 @@ enum ZydisFormatterAddressFormat
* "JMP 0x20" * "JMP 0x20"
* "JMP 0xE0" * "JMP 0xE0"
*/ */
ZYDIS_FORMATTER_ADDRESS_RELATIVE_UNSIGNED, ZYDIS_FORMATTER_ADDR_RELATIVE_UNSIGNED,
}; };
/** /**
* @brief Defines the zydis displacement-format datatype. * @brief Defines the @c ZydisFormatterDisplacementFormat datatype.
*/ */
typedef uint8_t ZydisFormatterDisplacementFormat; typedef uint8_t ZydisFormatterDisplacementFormat;
@ -114,6 +111,7 @@ typedef uint8_t ZydisFormatterDisplacementFormat;
*/ */
enum ZydisFormatterDisplacementFormats enum ZydisFormatterDisplacementFormats
{ {
ZYDIS_FORMATTER_DISP_DEFAULT,
/** /**
* @brief Formats displacements as signed hexadecimal values. * @brief Formats displacements as signed hexadecimal values.
* *
@ -133,7 +131,7 @@ enum ZydisFormatterDisplacementFormats
}; };
/** /**
* @brief Defines the zydis formatter immediate-format datatype. * @brief Defines the @c ZydisFormatterImmediateFormat datatype.
*/ */
typedef uint8_t ZydisFormatterImmediateFormat; typedef uint8_t ZydisFormatterImmediateFormat;
@ -142,6 +140,7 @@ typedef uint8_t ZydisFormatterImmediateFormat;
*/ */
enum ZydisFormatterImmediateFormats enum ZydisFormatterImmediateFormats
{ {
ZYDIS_FORMATTER_IMM_DEFAULT,
/** /**
* @brief Formats immediates as signed hexadecimal values. * @brief Formats immediates as signed hexadecimal values.
* *
@ -161,7 +160,38 @@ enum ZydisFormatterImmediateFormats
}; };
/** /**
* @brief Defines the zydis instruction-formatter struct. * @brief Defines the @c ZydisFormatterHookType datatype.
*/
typedef uint8_t ZydisFormatterHookType;
/**
* @brief Values that represent formatter hook-types.
*/
enum ZydisFormatterHookTypes
{
/**
* @brief This hook is called right
*/
ZYDIS_FORMATTER_HOOK_PRE,
ZYDIS_FORMATTER_HOOK_POST,
ZYDIS_FORMATTER_HOOK_FORMAT_MNEMONIC,
ZYDIS_FORMATTER_HOOK_FORMAT_OPERAND,
ZYDIS_FORMATTER_HOOK_FORMAT_OPERAND_REG,
ZYDIS_FORMATTER_HOOK_FORMAT_OPERAND_MEM,
ZYDIS_FORMATTER_HOOK_FORMAT_OPERAND_IMM,
ZYDIS_FORMATTER_HOOK_FORMAT_OPERAND_PTR,
ZYDIS_FORMATTER_HOOK_FORMAT_ADDRESS_ABS,
ZYDIS_FORMATTER_HOOK_FORMAT_ADDRESS_REL,
ZYDIS_FORMATTER_HOOK_FORMAT_DISPLACEMENT,
ZYDIS_FORMATTER_HOOK_FORMAT_IMMEDIATE
};
typedef const char* (*ZydisFormatterHookFormatMnemonicFunc)(void* context,
const ZydisInstructionInfo* info, const ZydisOperandInfo* operand, uint64_t address,
int64_t* offset);
/**
* @brief Defines the @c ZydisInstructionFormatter struct.
*/ */
typedef struct ZydisInstructionFormatter_ typedef struct ZydisInstructionFormatter_
{ {
@ -174,8 +204,12 @@ typedef struct ZydisInstructionFormatter_
} ZydisInstructionFormatter; } ZydisInstructionFormatter;
/* ---------------------------------------------------------------------------------------------- */ /* ============================================================================================== */
/* Exported functions */ /* Exported functions */
/* ============================================================================================== */
/* ---------------------------------------------------------------------------------------------- */
/* Basic functions */
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/** /**
@ -224,6 +258,9 @@ ZYDIS_EXPORT ZydisStatus ZydisFormatterGetSymbolResolver(
ZYDIS_EXPORT ZydisStatus ZydisFormatterSetSymbolResolver( ZYDIS_EXPORT ZydisStatus ZydisFormatterSetSymbolResolver(
ZydisInstructionFormatter* formatter, ZydisCustomSymbolResolver* symbolResolver); ZydisInstructionFormatter* formatter, ZydisCustomSymbolResolver* symbolResolver);
ZYDIS_EXPORT ZydisStatus ZydisFormatterSetHook(ZydisInstructionFormatter* formatter,
ZydisFormatterHookType hook, const void* callback);
/** /**
* @brief Formats the given instruction and writes it into the output buffer. * @brief Formats the given instruction and writes it into the output buffer.
* *
@ -238,6 +275,18 @@ ZYDIS_EXPORT ZydisStatus ZydisFormatterFormatInstruction(
ZydisInstructionFormatter* formatter, const ZydisInstructionInfo* info, char* buffer, ZydisInstructionFormatter* formatter, const ZydisInstructionInfo* info, char* buffer,
size_t bufferLen); size_t bufferLen);
/* ---------------------------------------------------------------------------------------------- */
/* Formatting functions for custom implementations */
/* ---------------------------------------------------------------------------------------------- */
ZYDIS_EXPORT ZydisStatus ZydisFormatterFormatOperandIntel(
const ZydisInstructionFormatter* formatter, char* buffer, size_t bufferLen, size_t* offset,
const ZydisInstructionInfo* info, const ZydisOperandInfo* operand, uint16_t typecast);
ZYDIS_EXPORT ZydisStatus ZydisFormatterFormatOperandMemIntel(
const ZydisInstructionFormatter* formatter, char* buffer, size_t bufferLen, size_t* offset,
const ZydisInstructionInfo* info, const ZydisOperandInfo* operand, uint16_t typecast);
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/* ============================================================================================== */ /* ============================================================================================== */

116
include/Zydis/InstructionInfo.h
View File

@ -69,221 +69,221 @@ enum ZydisDisassemblerModes
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/** /**
* @brief Defines an alias representing instruction flags. * @brief Defines the @c ZydisInstructionFlags datatype.
*/ */
typedef uint32_t ZydisInstructionFlags; typedef uint32_t ZydisInstructionFlags;
/** /**
* @brief The instruction has the modrm byte. * @brief The instruction has the modrm byte.
*/ */
#define ZYDIS_INSTRUCTION_HAS_MODRM 0x00000001 #define ZYDIS_INSTRFLAG_HAS_MODRM 0x00000001
/** /**
* @brief The instruction has the sib byte. * @brief The instruction has the sib byte.
*/ */
#define ZYDIS_INSTRUCTION_HAS_SIB 0x00000002 #define ZYDIS_INSTRFLAG_HAS_SIB 0x00000002
/** /**
* @brief The instruction has one or more operands with position-relative offsets. * @brief The instruction has one or more operands with position-relative offsets.
*/ */
#define ZYDIS_INSTRUCTION_RELATIVE 0x00000004 #define ZYDIS_INSTRFLAG_IS_RELATIVE 0x00000004
/** /**
* @brief The instruction is privileged and may only be executed in kernel-mode (ring0). * @brief The instruction is privileged and may only be executed in kernel-mode (ring0).
*/ */
#define ZYDIS_INSTRUCTION_PRIVILEGED 0x00000008 #define ZYDIS_INSTRFLAG_IS_PRIVILEGED 0x00000008
/** /**
* @brief An error occured while decoding the current instruction. * @brief An error occured while decoding the current instruction.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_MASK 0x7F000000 #define ZYDIS_INSTRFLAG_ERROR_MASK 0x7F000000
/** /**
* @brief The instruction is invalid. * @brief The instruction is undefined.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_INVALID 0x01000000 #define ZYDIS_INSTRFLAG_ERROR_UNDEFINED 0x01000000
/** /**
* @brief The instruction length has exceeded the maximum of 15 bytes. * @brief The instruction length has exceeded the maximum of 15 bytes.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_INSTRUCTION_LENGTH 0x02000000 #define ZYDIS_INSTRFLAG_ERROR_MAXLENGTH 0x02000000
/** /**
* @brief An error occured while decoding the vex-prefix. * @brief An error occured while decoding the vex-prefix.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_MALFORMED_VEX 0x04000000 #define ZYDIS_INSTRFLAG_ERROR_MALFORMED_VEX 0x04000000
/** /**
* @brief An error occured while decoding the evex-prefix. * @brief An error occured while decoding the evex-prefix.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_MALFORMED_EVEX 0x08000000 #define ZYDIS_INSTRFLAG_ERROR_MALFORMED_EVEX 0x08000000
/** /**
* @brief An error occured while decoding the xop-prefix. * @brief An error occured while decoding the xop-prefix.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_MALFORMED_XOP 0x10000000 #define ZYDIS_INSTRFLAG_ERROR_MALFORMED_XOP 0x10000000
/** /**
* @brief A rex-prefix was found while decoding a vex/evex/xop instruction. * @brief A rex-prefix was found while decoding a vex/evex/xop instruction.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_ILLEGAL_REX 0x20000000 #define ZYDIS_INSTRFLAG_ERROR_ILLEGAL_REX 0x20000000
/** /**
* @brief An invalid constellation was found while decoding an instruction that uses the VSIB * @brief An invalid constellation was found while decoding an instruction that uses the VSIB
* addressing mode. * addressing mode.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_INVALID_VSIB 0x40000000 #define ZYDIS_INSTRFLAG_ERROR_INVALID_VSIB 0x40000000
/** /**
* @brief An error occured while decoding the instruction-operands. * @brief An error occured while decoding the instruction-operands.
*/ */
#define ZYDIS_INSTRUCTION_ERROR_OPERANDS 0x40000000 #define ZYDIS_INSTRFLAG_ERROR_OPERANDS 0x40000000
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/* Prefix flags */ /* Prefix flags */
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/** /**
* @brief Defines the zydis prefix-flags datatype. * @brief Defines the @c ZydisPrefixFlags datatype.
*/ */
typedef uint32_t ZydisPrefixFlags; typedef uint32_t ZydisPrefixFlags;
/** /**
* @brief The instruction has the rex-prefix (0x40 - 0x4F). * @brief The instruction has the rex-prefix (0x40 - 0x4F).
*/ */
#define ZYDIS_PREFIX_REX 0x00000001 #define ZYDIS_PREFIXFLAG_HAS_REX 0x00000001
/** /**
* @brief The instruction has the xop-prefix (0x8F). * @brief The instruction has the xop-prefix (0x8F).
*/ */
#define ZYDIS_PREFIX_XOP 0x00000002 #define ZYDIS_PREFIXFLAG_HAS_XOP 0x00000002
/** /**
* @brief The instruction has the vex-prefix (0xC4 or 0xC5). * @brief The instruction has the vex-prefix (0xC4 or 0xC5).
*/ */
#define ZYDIS_PREFIX_VEX 0x00000004 #define ZYDIS_PREFIXFLAG_HAS_VEX 0x00000004
/** /**
* @brief The instruction has the evex-prefix (0x62). * @brief The instruction has the evex-prefix (0x62).
*/ */
#define ZYDIS_PREFIX_EVEX 0x00000008 #define ZYDIS_PREFIXFLAG_HAS_EVEX 0x00000008
/** /**
* @brief The instruction has the lock-prefix (0x0F) * @brief The instruction has the lock-prefix (0x0F)
*/ */
#define ZYDIS_PREFIX_LOCK 0x00000010 #define ZYDIS_PREFIXFLAG_HAS_LOCK 0x00000010
/** /**
* @brief The instruction has the rep/repe/repz-prefix (0xF3) * @brief The instruction has the rep/repe/repz-prefix (0xF3)
*/ */
#define ZYDIS_PREFIX_REP 0x00000020 #define ZYDIS_PREFIXFLAG_HAS_REP 0x00000020
/** /**
* @brief The instruction has the rep/repe/repz-prefix (0xF3) * @brief The instruction has the rep/repe/repz-prefix (0xF3)
*/ */
#define ZYDIS_PREFIX_REPE 0x00000020 #define ZYDIS_PREFIXFLAG_HAS_REPE 0x00000020
/** /**
* @brief The instruction has the rep/repe/repz-prefix (0xF3) * @brief The instruction has the rep/repe/repz-prefix (0xF3)
*/ */
#define ZYDIS_PREFIX_REPZ 0x00000020 #define ZYDIS_PREFIXFLAGG_HAS_REPZ 0x00000020
/** /**
* @brief The instruction has the repne/repnz-prefix (0xF2) * @brief The instruction has the repne/repnz-prefix (0xF2)
*/ */
#define ZYDIS_PREFIX_REPNE 0x00000040 #define ZYDIS_PREFIXFLAG_HAS_REPNE 0x00000040
/** /**
* @brief The instruction has the repne/repnz-prefix (0xF2) * @brief The instruction has the repne/repnz-prefix (0xF2)
*/ */
#define ZYDIS_PREFIX_REPNZ 0x00000040 #define ZYDIS_PREFIXFLAG_HAS_REPNZ 0x00000040
/** /**
* @brief The instruction has a segment-override prefix. * @brief The instruction has a segment-override prefix.
*/ */
#define ZYDIS_PREFIX_SEGMENT_MASK 0x00001F80 #define ZYDIS_PREFIXFLAG_SEGMENT_MASK 0x00001F80
/** /**
* @brief The instruction has the cs segment-override prefix (0x2E). * @brief The instruction has the cs segment-override prefix (0x2E).
*/ */
#define ZYDIS_PREFIX_SEGMENT_CS 0x00000080 #define ZYDIS_PREFIXFLAG_HAS_SEGMENT_CS 0x00000080
/** /**
* @brief The instruction has the ss segment-override prefix (0x36). * @brief The instruction has the ss segment-override prefix (0x36).
*/ */
#define ZYDIS_PREFIX_SEGMENT_SS 0x00000100 #define ZYDIS_PREFIXFLAG_HAS_SEGMENT_SS 0x00000100
/** /**
* @brief The instruction has the ds segment-override prefix (0x3E). * @brief The instruction has the ds segment-override prefix (0x3E).
*/ */
#define ZYDIS_PREFIX_SEGMENT_DS 0x00000200 #define ZYDIS_PREFIXFLAG_HAS_SEGMENT_DS 0x00000200
/** /**
* @brief The instruction has the es segment-override prefix (0x26). * @brief The instruction has the es segment-override prefix (0x26).
*/ */
#define ZYDIS_PREFIX_SEGMENT_ES 0x00000400 #define ZYDIS_PREFIXFLAG_HAS_SEGMENT_ES 0x00000400
/** /**
* @brief The instruction has the fs segment-override prefix (0x64). * @brief The instruction has the fs segment-override prefix (0x64).
*/ */
#define ZYDIS_PREFIX_SEGMENT_FS 0x00000800 #define ZYDIS_PREFIXFLAG_HAS_SEGMENT_FS 0x00000800
/** /**
* @brief The instruction has the gs segment-override prefix (0x65). * @brief The instruction has the gs segment-override prefix (0x65).
*/ */
#define ZYDIS_PREFIX_SEGMENT_GS 0x00001000 #define ZYDIS_PREFIXFLAG_HAS_SEGMENT_GS 0x00001000
/** /**
* @brief The instruction has the operand-size-override prefix (0x66). * @brief The instruction has the operand-size-override prefix (0x66).
*/ */
#define ZYDIS_PREFIX_OPERANDSIZE 0x00002000 #define ZYDIS_PREFIXFLAG_HAS_OPERANDSIZE 0x00002000
/** /**
* @brief The instruction has the address-size-override prefix (0x67). * @brief The instruction has the address-size-override prefix (0x67).
*/ */
#define ZYDIS_PREFIX_ADDRESSSIZE 0x00004000 #define ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE 0x00004000
/** /**
* @brief The instruction has the xacquire prefix (0xF2). * @brief The instruction has the xacquire prefix (0xF2).
*/ */
#define ZYDIS_PREFIX_XACQUIRE 0x00008000 #define ZYDIS_PREFIXFLAG_HAS_XACQUIRE 0x00008000
/** /**
* @brief The instruction has the xrelease prefix (0xF3). * @brief The instruction has the xrelease prefix (0xF3).
*/ */
#define ZYDIS_PREFIX_XRELEASE 0x00010000 #define ZYDIS_PREFIXFLAG_HAS_XRELEASE 0x00010000
/** /**
* @brief The instruction has the branch-not-taken hint (0x2E). * @brief The instruction has the branch-not-taken hint (0x2E).
*/ */
#define ZYDIS_PREFIX_BRANCH_NOT_TAKEN 0x00020000 #define ZYDIS_PREFIXFLAG_HAS_BRANCH_NOT_TAKEN 0x00020000
/** /**
* @brief The instruction has the branch-taken hint (0x3E). * @brief The instruction has the branch-taken hint (0x3E).
*/ */
#define ZYDIS_PREFIX_BRANCH_TAKEN 0x00040000 #define ZYDIS_PREFIXFLAG_HAS_BRANCH_TAKEN 0x00040000
/** /**
* @brief The instruction accepts the operand-size override prefix (0x66) * @brief The instruction accepts the operand-size override prefix (0x66)
*/ */
#define ZYDIS_PREFIX_ACCEPTS_OPERANDSIZE 0x00080000 #define ZYDIS_PREFIXFLAG_ACCEPTS_OPERANDSIZE 0x00080000
/** /**
* @brief The instruction accepts the adress-size override prefix (0x67) * @brief The instruction accepts the adress-size override prefix (0x67)
*/ */
#define ZYDIS_PREFIX_ACCEPTS_ADDRESSSIZE 0x00100000 #define ZYDIS_PREFIXFLAG_ACCEPTS_ADDRESSSIZE 0x00100000
/** /**
* @brief The instruction accepts the lock-prefix. * @brief The instruction accepts the lock-prefix.
*/ */
#define ZYDIS_PREFIX_ACCEPTS_LOCK 0x00200000 #define ZYDIS_PREFIXFLAG_ACCEPTS_LOCK 0x00200000
/** /**
* @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz). * @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz).
*/ */
#define ZYDIS_PREFIX_ACCEPTS_REP 0x00400000 #define ZYDIS_PREFIXFLAG_ACCEPTS_REP 0x00400000
/** /**
* @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz). * @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz).
*/ */
#define ZYDIS_PREFIX_ACCEPTS_REPE 0x00400000 #define ZYDIS_PREFIXFLAG_ACCEPTS_REPE 0x00400000
/** /**
* @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz). * @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz).
*/ */
#define ZYDIS_PREFIX_ACCEPTS_REPZ 0x00400000 #define ZYDIS_PREFIXFLAG_ACCEPTS_REPZ 0x00400000
/** /**
* @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz). * @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz).
*/ */
#define ZYDIS_PREFIX_ACCEPTS_REPNE 0x00400000 #define ZYDIS_PREFIXFLAG_ACCEPTS_REPNE 0x00400000
/** /**
* @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz). * @brief The instruction accepts the string prefixes (rep/repe/repz/repne/repnz).
*/ */
#define ZYDIS_PREFIX_ACCEPTS_REPNZ 0x00400000 #define ZYDIS_PREFIXFLAG_ACCEPTS_REPNZ 0x00400000
/** /**
* @brief The instruction has multiple prefixes of the first prefix-group (0x0F, 0xF3, 0xF2). * @brief The instruction has multiple prefixes of the first prefix-group (0x0F, 0xF3, 0xF2).
*/ */
#define ZYDIS_PREFIX_MULTIPLE_GRP1 0x00800000 #define ZYDIS_PREFIXFLAG_MULTIPLE_GRP1 0x00800000
/** /**
* @brief The instruction has multiple prefixes of the second prefix-group (0x2E, 0x36, * @brief The instruction has multiple prefixes of the second prefix-group (0x2E, 0x36,
* 0x3E, 0x26, 0x64, 0x65). * 0x3E, 0x26, 0x64, 0x65).
*/ */
#define ZYDIS_PREFIX_MULTIPLE_GRP2 0x01000000 #define ZYDIS_PREFIXFLAG_MULTIPLE_GRP2 0x01000000
/** /**
* @brief The instruction has multiple prefixes of the third prefix-group (0x66). * @brief The instruction has multiple prefixes of the third prefix-group (0x66).
*/ */
#define ZYDIS_PREFIX_MULTIPLE_GRP3 0x02000000 #define ZYDIS_PREFIXFLAG_MULTIPLE_GRP3 0x02000000
/** /**
* @brief The instruction has multiple prefixes of the fourth prefix-group (0x67). * @brief The instruction has multiple prefixes of the fourth prefix-group (0x67).
*/ */
#define ZYDIS_PREFIX_MULTIPLE_GRP4 0x04000000 #define ZYDIS_PREFIXFLAG_MULTIPLE_GRP4 0x04000000
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/* Instruction encoding */ /* Instruction encoding */
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/** /**
* @brief Defines the zydis instruction-encoding datatype. * @brief Defines the @c ZydisInstructionEncoding datatype.
*/ */
typedef uint8_t ZydisInstructionEncoding; typedef uint8_t ZydisInstructionEncoding;
@ -304,12 +304,12 @@ enum ZydisInstructionEncodings
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/** /**
* @brief Defines an alias representing an opcode map. * @brief Defines the @c ZydisOpcodeMap map.
*/ */
typedef uint8_t ZydisOpcodeMap; typedef uint8_t ZydisOpcodeMap;
/** /**
* @brief Values that represent opcode maps. * @brief Values that represent opcode-maps.
*/ */
enum ZydisOpcodeMaps enum ZydisOpcodeMaps
{ {
@ -327,7 +327,7 @@ enum ZydisOpcodeMaps
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/** /**
* @brief Defines an alias representing an operand-type. * @brief Defines the @c ZydisOperandType datatype.
*/ */
typedef uint8_t ZydisOperandType; typedef uint8_t ZydisOperandType;
@ -363,7 +363,7 @@ enum ZydisOperandTypes
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/** /**
* @brief Defines an alias representing an operand-encoding. * @brief Defines the @c ZydisOperandEncoding datatype.
*/ */
typedef uint8_t ZydisOperandEncoding; typedef uint8_t ZydisOperandEncoding;
@ -657,11 +657,11 @@ typedef struct ZydisInstructionInfo_
/** /**
* @brief Instruction specific info- and error-flags. * @brief Instruction specific info- and error-flags.
*/ */
ZydisInstructionFlags flags; ZydisInstructionFlags instrFlags;
/** /**
* @brief Prefix flags. * @brief Prefix flags.
*/ */
ZydisPrefixFlags prefixes; ZydisPrefixFlags prefixFlags;
/** /**
* @brief The instruction-mnemonic. * @brief The instruction-mnemonic.
*/ */

132
include/Zydis/Register.h
View File

@ -190,8 +190,6 @@ enum ZydisRegisterSizes
ZYDIS_REGISTERSIZE_512 = 512 ZYDIS_REGISTERSIZE_512 = 512
}; };
/* ---------------------------------------------------------------------------------------------- */
/* ============================================================================================== */ /* ============================================================================================== */
/* Macros */ /* Macros */
/* ============================================================================================== */ /* ============================================================================================== */
@ -201,7 +199,7 @@ enum ZydisRegisterSizes
* *
* @param reg The register. * @param reg The register.
*/ */
#define ZYDIS_REGISTER_IS_GPR (reg) \ #define ZYDIS_REGISTER_IS_GPR(reg) \
((ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE8) ||) \ ((ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE8) ||) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE16) || \ (ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE16) || \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE32)) (ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE32))
@ -211,7 +209,7 @@ enum ZydisRegisterSizes
* *
* @param reg The register. * @param reg The register.
*/ */
#define ZYDIS_REGISTER_IS_GPR8 (reg) \ #define ZYDIS_REGISTER_IS_GPR8(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE8) (ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE8)
/** /**
@ -219,7 +217,7 @@ enum ZydisRegisterSizes
* *
* @param reg The register. * @param reg The register.
*/ */
#define ZYDIS_REGISTER_IS_GPR16 (reg) \ #define ZYDIS_REGISTER_IS_GPR16(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE16) (ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE16)
/** /**
@ -227,10 +225,130 @@ enum ZydisRegisterSizes
* *
* @param reg The register. * @param reg The register.
*/ */
#define ZYDIS_REGISTER_IS_GPR32 (reg) \ #define ZYDIS_REGISTER_IS_GPR32(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE32) (ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE32)
// TODO: Add macros for all register-classes /**
* @brief Checks, if the given register is a legacy floating-point register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_FLOATING_POINT(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_FLOATING_POINT)
/**
* @brief Checks, if the given register is a multimedia floating-point register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_MLUTIMEDIA(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_MULTIMEDIA)
/**
* @brief Checks, if the given register is a vector register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_VECTOR(reg) \
((ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_VECTOR128) ||) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_VECTOR256) || \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_VECTOR512))
/**
* @brief Checks, if the given register is a 128-bit vector register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_VECTOR128(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_VECTOR128)
/**
* @brief Checks, if the given register is a 256-bit vector register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_VECTOR256(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_VECTOR256)
/**
* @brief Checks, if the given register is a 512-bit vector register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_VECTOR512(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_VECTOR512)
/**
* @brief Checks, if the given register is a flags register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_FLAGS(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_FLAGS)
/**
* @brief Checks, if the given register is an instruction-pointer register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_IP(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_IP)
/**
* @brief Checks, if the given register is a segment register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_SEGMENT(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_SEGMENT)
/**
* @brief Checks, if the given register is a table register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_TABLE(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_TABLE)
/**
* @brief Checks, if the given register is a test register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_TEST(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_TEST)
/**
* @brief Checks, if the given register is a control register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_CONTROL(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_CONTROL)
/**
* @brief Checks, if the given register is a debug register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_DEBUG(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_DEBUG)
/**
* @brief Checks, if the given register is a mask register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_MASK(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_MASK)
/**
* @brief Checks, if the given register is a bounds register.
*
* @param reg The register.
*/
#define ZYDIS_REGISTER_IS_BOUNDS(reg) \
(ZydisRegisterGetClass(reg) == ZYDIS_REGISTERCLASS_BOUNDS)
/* ============================================================================================== */ /* ============================================================================================== */
/* Exported functions */ /* Exported functions */

6
include/Zydis/Status.h
View File

@ -65,10 +65,10 @@ enum ZydisStatusCode
*/ */
ZYDIS_STATUS_NO_MORE_DATA = 0x00000003, ZYDIS_STATUS_NO_MORE_DATA = 0x00000003,
/** /**
* @brief An error occured while decoding the current instruction. Check the @c flags field * @brief An error occured while decoding the current instruction. Check the @c instrFlags
* of the @c ZydisInstructionInfo struct for further details. * field of the @c ZydisInstructionInfo struct for further details.
*/ */
ZYDIS_STATUS_INVALID_INSTRUCTION = 0x00000004, // TODO: Rename ZYDIS_STATUS_DECODING_ERROR = 0x00000004,
/** /**
* @brief A buffer passed to a function was too small to complete the requested operation. * @brief A buffer passed to a function was too small to complete the requested operation.
*/ */

213
src/Decoder.c
View File

@ -69,11 +69,11 @@ typedef enum ZydisDecoderStatusCode_
{ {
ZYDIS_STATUS_DECODER_SUCCESS, ZYDIS_STATUS_DECODER_SUCCESS,
ZYDIS_STATUS_DECODER_NO_MORE_DATA, ZYDIS_STATUS_DECODER_NO_MORE_DATA,
ZYDIS_STATUS_DECODER_INVALID_INSTRUCTION, ZYDIS_STATUS_DECODER_UNDEFINED_INSTRUCTION,
ZYDIS_STATUS_DECODER_INVALID_INSTRUCTION_LENGTH, ZYDIS_STATUS_DECODER_INVALID_INSTRUCTION_LENGTH,
ZYDIS_STATUS_DECODER_MALFORMED_VEX_PREFIX, ZYDIS_STATUS_DECODER_MALFORMED_VEX,
ZYDIS_STATUS_DECODER_MALFORMED_EVEX_PREFIX, ZYDIS_STATUS_DECODER_MALFORMED_EVEX,
ZYDIS_STATUS_DECODER_MALFORMED_XOP_PREFIX, ZYDIS_STATUS_DECODER_MALFORMED_XOP,
ZYDIS_STATUS_DECODER_ILLEGAL_REX, ZYDIS_STATUS_DECODER_ILLEGAL_REX,
ZYDIS_STATUS_DECODER_INVALID_VSIB ZYDIS_STATUS_DECODER_INVALID_VSIB
} ZydisDecoderStatusCode; } ZydisDecoderStatusCode;
@ -110,7 +110,7 @@ static ZydisDecoderStatus ZydisInputPeek(ZydisInstructionDecoder* decoder,
if (info->length >= ZYDIS_MAX_INSTRUCTION_LENGTH) if (info->length >= ZYDIS_MAX_INSTRUCTION_LENGTH)
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_INSTRUCTION_LENGTH; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_MAXLENGTH;
return ZYDIS_STATUS_DECODER_INVALID_INSTRUCTION_LENGTH; return ZYDIS_STATUS_DECODER_INVALID_INSTRUCTION_LENGTH;
} }
@ -388,7 +388,7 @@ static void ZydisDecodeModrm(uint8_t modrmByte, ZydisInstructionInfo* info)
{ {
ZYDIS_ASSERT(info); ZYDIS_ASSERT(info);
info->flags |= ZYDIS_INSTRUCTION_HAS_MODRM; info->instrFlags |= ZYDIS_INSTRFLAG_HAS_MODRM;
info->details.modrm.isDecoded = true; info->details.modrm.isDecoded = true;
info->details.modrm.data[0] = modrmByte; info->details.modrm.data[0] = modrmByte;
info->details.modrm.mod = (modrmByte >> 6) & 0x03; info->details.modrm.mod = (modrmByte >> 6) & 0x03;
@ -408,7 +408,7 @@ static void ZydisDecodeSib(uint8_t sibByte, ZydisInstructionInfo* info)
ZYDIS_ASSERT(info->details.modrm.isDecoded); ZYDIS_ASSERT(info->details.modrm.isDecoded);
ZYDIS_ASSERT((info->details.modrm.rm & 0x7) == 4); ZYDIS_ASSERT((info->details.modrm.rm & 0x7) == 4);
info->flags |= ZYDIS_INSTRUCTION_HAS_SIB; info->instrFlags |= ZYDIS_INSTRFLAG_HAS_SIB;
info->details.sib.isDecoded = true; info->details.sib.isDecoded = true;
info->details.sib.data[0] = sibByte; info->details.sib.data[0] = sibByte;
info->details.sib.scale = (sibByte >> 6) & 0x03; info->details.sib.scale = (sibByte >> 6) & 0x03;
@ -444,58 +444,58 @@ static ZydisDecoderStatus ZydisCollectOptionalPrefixes(ZydisInstructionDecoder*
switch (prefixByte) switch (prefixByte)
{ {
case 0xF0: case 0xF0:
info->prefixes |= ZYDIS_PREFIX_LOCK; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_LOCK;
++groups[0]; ++groups[0];
break; break;
case 0xF2: case 0xF2:
// 0xF2 and 0xF3 are mutally exclusive. The one that comes later has precedence. // 0xF2 and 0xF3 are mutally exclusive. The one that comes later has precedence.
info->prefixes |= ZYDIS_PREFIX_REPNE; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_REPNE;
info->prefixes &= ~ZYDIS_PREFIX_REP; info->prefixFlags &= ~ZYDIS_PREFIXFLAG_HAS_REP;
++groups[0]; ++groups[0];
break; break;
case 0xF3: case 0xF3:
// 0xF2 and 0xF3 are mutally exclusive. The one that comes later has precedence. // 0xF2 and 0xF3 are mutally exclusive. The one that comes later has precedence.
info->prefixes |= ZYDIS_PREFIX_REP; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_REP;
info->prefixes &= ~ZYDIS_PREFIX_REPNE; info->prefixFlags &= ~ZYDIS_PREFIXFLAG_HAS_REPNE;
++groups[0]; ++groups[0];
break; break;
case 0x2E: case 0x2E:
info->prefixes |= ZYDIS_PREFIX_SEGMENT_CS; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_SEGMENT_CS;
++groups[1]; ++groups[1];
break; break;
case 0x36: case 0x36:
info->prefixes |= ZYDIS_PREFIX_SEGMENT_SS; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_SEGMENT_SS;
++groups[1]; ++groups[1];
break; break;
case 0x3E: case 0x3E:
info->prefixes |= ZYDIS_PREFIX_SEGMENT_DS; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_SEGMENT_DS;
++groups[1]; ++groups[1];
break; break;
case 0x26: case 0x26:
info->prefixes |= ZYDIS_PREFIX_SEGMENT_ES; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_SEGMENT_ES;
++groups[1]; ++groups[1];
break; break;
case 0x64: case 0x64:
info->prefixes |= ZYDIS_PREFIX_SEGMENT_FS; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_SEGMENT_FS;
++groups[1]; ++groups[1];
break; break;
case 0x65: case 0x65:
info->prefixes |= ZYDIS_PREFIX_SEGMENT_GS; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_SEGMENT_GS;
++groups[1]; ++groups[1];
break; break;
case 0x66: case 0x66:
info->prefixes |= ZYDIS_PREFIX_OPERANDSIZE; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_OPERANDSIZE;
++groups[2]; ++groups[2];
break; break;
case 0x67: case 0x67:
info->prefixes |= ZYDIS_PREFIX_ADDRESSSIZE; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE;
++groups[3]; ++groups[3];
break; break;
default: default:
if ((decoder->disassemblerMode == ZYDIS_DISASSEMBLER_MODE_64BIT) && if ((decoder->disassemblerMode == ZYDIS_DISASSEMBLER_MODE_64BIT) &&
(prefixByte & 0xF0) == 0x40) (prefixByte & 0xF0) == 0x40)
{ {
info->prefixes |= ZYDIS_PREFIX_REX; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_REX;
info->details.rex.data[0] = prefixByte; info->details.rex.data[0] = prefixByte;
} else } else
{ {
@ -509,26 +509,26 @@ static ZydisDecoderStatus ZydisCollectOptionalPrefixes(ZydisInstructionDecoder*
} }
} while (!done); } while (!done);
if (info->prefixes & ZYDIS_PREFIX_REX) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REX)
{ {
ZydisDecodeRexPrefix(info, info->details.rex.data[0]); ZydisDecodeRexPrefix(info, info->details.rex.data[0]);
} }
if (groups[0] > 1) if (groups[0] > 1)
{ {
info->prefixes |= ZYDIS_PREFIX_MULTIPLE_GRP1; info->prefixFlags |= ZYDIS_PREFIXFLAG_MULTIPLE_GRP1;
} }
if (groups[1] > 1) if (groups[1] > 1)
{ {
info->prefixes |= ZYDIS_PREFIX_MULTIPLE_GRP2; info->prefixFlags |= ZYDIS_PREFIXFLAG_MULTIPLE_GRP2;
} }
if (groups[2] > 1) if (groups[2] > 1)
{ {
info->prefixes |= ZYDIS_PREFIX_MULTIPLE_GRP3; info->prefixFlags |= ZYDIS_PREFIXFLAG_MULTIPLE_GRP3;
} }
if (groups[3] > 1) if (groups[3] > 1)
{ {
info->prefixes |= ZYDIS_PREFIX_MULTIPLE_GRP4; info->prefixFlags |= ZYDIS_PREFIXFLAG_MULTIPLE_GRP4;
} }
return ZYDIS_STATUS_SUCCESS; return ZYDIS_STATUS_SUCCESS;
@ -661,7 +661,7 @@ static ZydisDecoderStatus ZydisDecodeOperandRegister(ZydisInstructionInfo* info,
operand->type = ZYDIS_OPERAND_TYPE_REGISTER; operand->type = ZYDIS_OPERAND_TYPE_REGISTER;
if (registerClass == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE8) if (registerClass == ZYDIS_REGISTERCLASS_GENERAL_PURPOSE8)
{ {
if ((info->prefixes & ZYDIS_PREFIX_REX) && (registerId >= 4)) if ((info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REX) && (registerId >= 4))
{ {
operand->reg = ZYDIS_REGISTER_SPL + (registerId - 4); operand->reg = ZYDIS_REGISTER_SPL + (registerId - 4);
} else } else
@ -707,17 +707,17 @@ static ZydisDecoderStatus ZydisDecodeOperandModrmRm(ZydisInstructionDecoder* dec
} }
operand->type = ZYDIS_OPERAND_TYPE_MEMORY; operand->type = ZYDIS_OPERAND_TYPE_MEMORY;
uint8_t displacementSize = 0; uint8_t displacementSize = 0;
info->prefixes |= ZYDIS_PREFIX_ACCEPTS_ADDRESSSIZE; info->prefixFlags |= ZYDIS_PREFIXFLAG_ACCEPTS_ADDRESSSIZE;
switch (decoder->disassemblerMode) switch (decoder->disassemblerMode)
{ {
case ZYDIS_DISASSEMBLER_MODE_16BIT: case ZYDIS_DISASSEMBLER_MODE_16BIT:
operand->mem.addressSize = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 32 : 16; operand->mem.addressSize = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 32 : 16;
break; break;
case ZYDIS_DISASSEMBLER_MODE_32BIT: case ZYDIS_DISASSEMBLER_MODE_32BIT:
operand->mem.addressSize = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 16 : 32; operand->mem.addressSize = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 16 : 32;
break; break;
case ZYDIS_DISASSEMBLER_MODE_64BIT: case ZYDIS_DISASSEMBLER_MODE_64BIT:
operand->mem.addressSize = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 32 : 64; operand->mem.addressSize = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 32 : 64;
break; break;
default: default:
ZYDIS_UNREACHABLE; ZYDIS_UNREACHABLE;
@ -762,7 +762,7 @@ static ZydisDecoderStatus ZydisDecodeOperandModrmRm(ZydisInstructionDecoder* dec
{ {
if (decoder->disassemblerMode == ZYDIS_DISASSEMBLER_MODE_64BIT) if (decoder->disassemblerMode == ZYDIS_DISASSEMBLER_MODE_64BIT)
{ {
info->flags |= ZYDIS_INSTRUCTION_RELATIVE; info->instrFlags |= ZYDIS_INSTRFLAG_IS_RELATIVE;
operand->mem.base = ZYDIS_REGISTER_EIP; operand->mem.base = ZYDIS_REGISTER_EIP;
} else } else
{ {
@ -821,7 +821,7 @@ static ZydisDecoderStatus ZydisDecodeOperandModrmRm(ZydisInstructionDecoder* dec
case 0: case 0:
if (modrm_rm == 5) if (modrm_rm == 5)
{ {
info->flags |= ZYDIS_INSTRUCTION_RELATIVE; info->instrFlags |= ZYDIS_INSTRFLAG_IS_RELATIVE;
operand->mem.base = ZYDIS_REGISTER_RIP; operand->mem.base = ZYDIS_REGISTER_RIP;
displacementSize = 32; displacementSize = 32;
} }
@ -1000,7 +1000,7 @@ static ZydisDecoderStatus ZydisDecodeOperand(ZydisInstructionDecoder* decoder,
registerClass = ZYDIS_REGISTERCLASS_GENERAL_PURPOSE64; registerClass = ZYDIS_REGISTERCLASS_GENERAL_PURPOSE64;
break; break;
case ZYDIS_SEM_OPERAND_TYPE_TR: case ZYDIS_SEM_OPERAND_TYPE_TR:
operand->size = 32; // TODO: ? operand->size = 32;
registerClass = ZYDIS_REGISTERCLASS_TEST; registerClass = ZYDIS_REGISTERCLASS_TEST;
break; break;
case ZYDIS_SEM_OPERAND_TYPE_CR: case ZYDIS_SEM_OPERAND_TYPE_CR:
@ -1271,13 +1271,13 @@ static ZydisDecoderStatus ZydisDecodeOperand(ZydisInstructionDecoder* decoder,
{ {
if (info->details.modrm.rm != 0x04) if (info->details.modrm.rm != 0x04)
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_INVALID_VSIB; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_INVALID_VSIB;
return ZYDIS_STATUS_DECODER_INVALID_VSIB; return ZYDIS_STATUS_DECODER_INVALID_VSIB;
} }
switch (operand->mem.addressSize) switch (operand->mem.addressSize)
{ {
case 16: case 16:
info->flags |= ZYDIS_INSTRUCTION_ERROR_INVALID_VSIB; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_INVALID_VSIB;
return ZYDIS_STATUS_DECODER_INVALID_VSIB; return ZYDIS_STATUS_DECODER_INVALID_VSIB;
case 32: case 32:
operand->mem.index = operand->mem.index - ZYDIS_REGISTER_EAX + vsibBaseRegister; operand->mem.index = operand->mem.index - ZYDIS_REGISTER_EAX + vsibBaseRegister;
@ -1301,7 +1301,7 @@ static ZydisDecoderStatus ZydisDecodeOperand(ZydisInstructionDecoder* decoder,
operand->imm.value.ubyte = 1; operand->imm.value.ubyte = 1;
return ZYDIS_STATUS_DECODER_SUCCESS; return ZYDIS_STATUS_DECODER_SUCCESS;
case ZYDIS_SEM_OPERAND_TYPE_REL8: case ZYDIS_SEM_OPERAND_TYPE_REL8:
info->flags |= ZYDIS_INSTRUCTION_RELATIVE; info->instrFlags |= ZYDIS_INSTRFLAG_IS_RELATIVE;
operand->imm.isRelative = true; operand->imm.isRelative = true;
case ZYDIS_SEM_OPERAND_TYPE_IMM8: case ZYDIS_SEM_OPERAND_TYPE_IMM8:
operand->size = 8; operand->size = 8;
@ -1312,21 +1312,21 @@ static ZydisDecoderStatus ZydisDecodeOperand(ZydisInstructionDecoder* decoder,
operand->imm.isSigned = false; operand->imm.isSigned = false;
break; break;
case ZYDIS_SEM_OPERAND_TYPE_REL16: case ZYDIS_SEM_OPERAND_TYPE_REL16:
info->flags |= ZYDIS_INSTRUCTION_RELATIVE; info->instrFlags |= ZYDIS_INSTRFLAG_IS_RELATIVE;
operand->imm.isRelative = true; operand->imm.isRelative = true;
case ZYDIS_SEM_OPERAND_TYPE_IMM16: case ZYDIS_SEM_OPERAND_TYPE_IMM16:
operand->size = 16; operand->size = 16;
operand->imm.isSigned = true; operand->imm.isSigned = true;
break; break;
case ZYDIS_SEM_OPERAND_TYPE_REL32: case ZYDIS_SEM_OPERAND_TYPE_REL32:
info->flags |= ZYDIS_INSTRUCTION_RELATIVE; info->instrFlags |= ZYDIS_INSTRFLAG_IS_RELATIVE;
operand->imm.isRelative = true; operand->imm.isRelative = true;
case ZYDIS_SEM_OPERAND_TYPE_IMM32: case ZYDIS_SEM_OPERAND_TYPE_IMM32:
operand->size = 32; operand->size = 32;
operand->imm.isSigned = true; operand->imm.isSigned = true;
break; break;
case ZYDIS_SEM_OPERAND_TYPE_REL64: case ZYDIS_SEM_OPERAND_TYPE_REL64:
info->flags |= ZYDIS_INSTRUCTION_RELATIVE; info->instrFlags |= ZYDIS_INSTRFLAG_IS_RELATIVE;
operand->imm.isRelative = true; operand->imm.isRelative = true;
case ZYDIS_SEM_OPERAND_TYPE_IMM64: case ZYDIS_SEM_OPERAND_TYPE_IMM64:
operand->size = 64; operand->size = 64;
@ -1469,17 +1469,17 @@ static ZydisDecoderStatus ZydisDecodeOperand(ZydisInstructionDecoder* decoder,
} }
if (srcidx || dstidx) if (srcidx || dstidx)
{ {
info->prefixes |= ZYDIS_PREFIX_ACCEPTS_ADDRESSSIZE; info->prefixFlags |= ZYDIS_PREFIXFLAG_ACCEPTS_ADDRESSSIZE;
switch (decoder->disassemblerMode) switch (decoder->disassemblerMode)
{ {
case ZYDIS_DISASSEMBLER_MODE_16BIT: case ZYDIS_DISASSEMBLER_MODE_16BIT:
operand->mem.addressSize = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 32 : 16; operand->mem.addressSize = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 32 : 16;
break; break;
case ZYDIS_DISASSEMBLER_MODE_32BIT: case ZYDIS_DISASSEMBLER_MODE_32BIT:
operand->mem.addressSize = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 16 : 32; operand->mem.addressSize = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 16 : 32;
break; break;
case ZYDIS_DISASSEMBLER_MODE_64BIT: case ZYDIS_DISASSEMBLER_MODE_64BIT:
operand->mem.addressSize = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 32 : 64; operand->mem.addressSize = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 32 : 64;
break; break;
default: default:
ZYDIS_UNREACHABLE; ZYDIS_UNREACHABLE;
@ -1556,33 +1556,33 @@ static ZydisDecoderStatus ZydisDecodeOperands(ZydisInstructionDecoder* decoder,
info->operand[i].access = definition->operands[i].access; info->operand[i].access = definition->operands[i].access;
if (status != ZYDIS_STATUS_DECODER_SUCCESS) if (status != ZYDIS_STATUS_DECODER_SUCCESS)
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_OPERANDS; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_OPERANDS;
return status; return status;
} }
// Adjust segment register for memory operands // Adjust segment register for memory operands
if (info->operand[i].type == ZYDIS_OPERAND_TYPE_MEMORY) if (info->operand[i].type == ZYDIS_OPERAND_TYPE_MEMORY)
{ {
if (info->prefixes & ZYDIS_PREFIX_SEGMENT_CS) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_CS)
{ {
info->operand[i].mem.segment = ZYDIS_REGISTER_CS; info->operand[i].mem.segment = ZYDIS_REGISTER_CS;
} else } else
if (info->prefixes & ZYDIS_PREFIX_SEGMENT_SS) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_SS)
{ {
info->operand[i].mem.segment = ZYDIS_REGISTER_SS; info->operand[i].mem.segment = ZYDIS_REGISTER_SS;
} else } else
if (info->prefixes & ZYDIS_PREFIX_SEGMENT_DS) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_DS)
{ {
info->operand[i].mem.segment = ZYDIS_REGISTER_DS; info->operand[i].mem.segment = ZYDIS_REGISTER_DS;
} else } else
if (info->prefixes & ZYDIS_PREFIX_SEGMENT_ES) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_ES)
{ {
info->operand[i].mem.segment = ZYDIS_REGISTER_ES; info->operand[i].mem.segment = ZYDIS_REGISTER_ES;
} else } else
if (info->prefixes & ZYDIS_PREFIX_SEGMENT_FS) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_FS)
{ {
info->operand[i].mem.segment = ZYDIS_REGISTER_FS; info->operand[i].mem.segment = ZYDIS_REGISTER_FS;
} else } else
if (info->prefixes & ZYDIS_PREFIX_SEGMENT_GS) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_GS)
{ {
info->operand[i].mem.segment = ZYDIS_REGISTER_GS; info->operand[i].mem.segment = ZYDIS_REGISTER_GS;
} else } else
@ -1637,17 +1637,14 @@ static void ZydisFinalizeInstructionInfo(ZydisInstructionInfo* info)
case ZYDIS_MNEMONIC_XCHG: case ZYDIS_MNEMONIC_XCHG:
if (info->operand[0].type == ZYDIS_OPERAND_TYPE_MEMORY) if (info->operand[0].type == ZYDIS_OPERAND_TYPE_MEMORY)
{ {
info->prefixes |= ZYDIS_PREFIX_ACCEPTS_LOCK; info->prefixFlags |= ZYDIS_PREFIXFLAG_ACCEPTS_LOCK;
} }
break; break;
case ZYDIS_MNEMONIC_MOVSB: case ZYDIS_MNEMONIC_MOVSB:
case ZYDIS_MNEMONIC_MOVSW: case ZYDIS_MNEMONIC_MOVSW:
case ZYDIS_MNEMONIC_MOVSD: case ZYDIS_MNEMONIC_MOVSD:
case ZYDIS_MNEMONIC_MOVSQ: case ZYDIS_MNEMONIC_MOVSQ:
case ZYDIS_MNEMONIC_CMPSB: case ZYDIS_MNEMONIC_CMPS: // TODO: Only the string-instruction! We will use flags later.
case ZYDIS_MNEMONIC_CMPSW:
case ZYDIS_MNEMONIC_CMPSD:
case ZYDIS_MNEMONIC_CMPSQ:
case ZYDIS_MNEMONIC_SCASB: case ZYDIS_MNEMONIC_SCASB:
case ZYDIS_MNEMONIC_SCASW: case ZYDIS_MNEMONIC_SCASW:
case ZYDIS_MNEMONIC_SCASD: case ZYDIS_MNEMONIC_SCASD:
@ -1666,7 +1663,7 @@ static void ZydisFinalizeInstructionInfo(ZydisInstructionInfo* info)
case ZYDIS_MNEMONIC_OUTSB: case ZYDIS_MNEMONIC_OUTSB:
case ZYDIS_MNEMONIC_OUTSW: case ZYDIS_MNEMONIC_OUTSW:
case ZYDIS_MNEMONIC_OUTSD: case ZYDIS_MNEMONIC_OUTSD:
info->prefixes |= ZYDIS_PREFIX_ACCEPTS_REP | ZYDIS_PREFIX_ACCEPTS_REPNE; info->prefixFlags |= ZYDIS_PREFIXFLAG_ACCEPTS_REP | ZYDIS_PREFIXFLAG_ACCEPTS_REPNE;
break; break;
case ZYDIS_MNEMONIC_JO: case ZYDIS_MNEMONIC_JO:
case ZYDIS_MNEMONIC_JNO: case ZYDIS_MNEMONIC_JNO:
@ -1687,44 +1684,46 @@ static void ZydisFinalizeInstructionInfo(ZydisInstructionInfo* info)
case ZYDIS_MNEMONIC_JCXZ: case ZYDIS_MNEMONIC_JCXZ:
case ZYDIS_MNEMONIC_JECXZ: case ZYDIS_MNEMONIC_JECXZ:
case ZYDIS_MNEMONIC_JRCXZ: case ZYDIS_MNEMONIC_JRCXZ:
if (info->prefixes & ZYDIS_PREFIX_SEGMENT_CS) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_CS)
{ {
info->prefixes &= ~ZYDIS_PREFIX_SEGMENT_CS; info->prefixFlags &= ~ZYDIS_PREFIXFLAG_HAS_SEGMENT_CS;
info->prefixes |= ZYDIS_PREFIX_BRANCH_NOT_TAKEN; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_BRANCH_NOT_TAKEN;
} else } else
if (info->prefixes & ZYDIS_PREFIX_SEGMENT_DS) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_DS)
{ {
info->prefixes &= ~ZYDIS_PREFIX_SEGMENT_DS; info->prefixFlags &= ~ZYDIS_PREFIXFLAG_HAS_SEGMENT_DS;
info->prefixes |= ZYDIS_PREFIX_BRANCH_TAKEN; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_BRANCH_TAKEN;
} }
break; break;
default: default:
break; break;
} }
if ((info->prefixes & ZYDIS_PREFIX_ACCEPTS_LOCK) && if ((info->prefixFlags & ZYDIS_PREFIXFLAG_ACCEPTS_LOCK) &&
((info->prefixes & ZYDIS_PREFIX_REP) || (info->prefixes & ZYDIS_PREFIX_REPNE))) ((info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REP) ||
(info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REPNE)))
{ {
if (info->mnemonic != ZYDIS_MNEMONIC_CMPXCHG16B) if (info->mnemonic != ZYDIS_MNEMONIC_CMPXCHG16B)
{ {
if ((info->prefixes & ZYDIS_PREFIX_LOCK) || (info->mnemonic == ZYDIS_MNEMONIC_XCHG)) if ((info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_LOCK) ||
(info->mnemonic == ZYDIS_MNEMONIC_XCHG))
{ {
if (info->prefixes & ZYDIS_PREFIX_REPNE) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REPNE)
{ {
info->prefixes &= ~ZYDIS_PREFIX_REPNE; info->prefixFlags &= ~ZYDIS_PREFIXFLAG_HAS_REPNE;
info->prefixes |= ZYDIS_PREFIX_XACQUIRE; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_XACQUIRE;
} }
{ {
info->prefixes &= ~ZYDIS_PREFIX_REP; info->prefixFlags &= ~ZYDIS_PREFIXFLAG_HAS_REP;
info->prefixes |= ZYDIS_PREFIX_XRELEASE; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_XRELEASE;
} }
} else } else
if ((info->mnemonic == ZYDIS_MNEMONIC_MOV) && ((info->opcode == 0x88) || if ((info->mnemonic == ZYDIS_MNEMONIC_MOV) && ((info->opcode == 0x88) ||
(info->opcode == 0x89) || (info->opcode == 0xC6) || (info->opcode == 0xC7))) (info->opcode == 0x89) || (info->opcode == 0xC6) || (info->opcode == 0xC7)))
{ {
if (info->prefixes & ZYDIS_PREFIX_REP) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REP)
{ {
info->prefixes &= ~ZYDIS_PREFIX_REP; info->prefixFlags &= ~ZYDIS_PREFIXFLAG_HAS_REP;
info->prefixes |= ZYDIS_PREFIX_XRELEASE; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_XRELEASE;
} }
} }
} }
@ -1778,9 +1777,9 @@ static ZydisDecoderStatus ZydisNodeHandlerOpcode(ZydisInstructionDecoder* decode
if ((decoder->disassemblerMode == ZYDIS_DISASSEMBLER_MODE_64BIT) || if ((decoder->disassemblerMode == ZYDIS_DISASSEMBLER_MODE_64BIT) ||
((nextInput & 0xF0) >= 0xC0)) ((nextInput & 0xF0) >= 0xC0))
{ {
if (info->prefixes & ZYDIS_PREFIX_REX) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REX)
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_ILLEGAL_REX; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_ILLEGAL_REX;
return ZYDIS_STATUS_DECODER_ILLEGAL_REX; return ZYDIS_STATUS_DECODER_ILLEGAL_REX;
} }
uint8_t prefixBytes[3]; uint8_t prefixBytes[3];
@ -1813,24 +1812,24 @@ static ZydisDecoderStatus ZydisNodeHandlerOpcode(ZydisInstructionDecoder* decode
case 0xC5: case 0xC5:
// Decode vex-prefix // Decode vex-prefix
info->encoding = ZYDIS_INSTRUCTION_ENCODING_VEX; info->encoding = ZYDIS_INSTRUCTION_ENCODING_VEX;
info->prefixes |= ZYDIS_PREFIX_VEX; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_VEX;
if (!ZydisDecodeVexPrefix(info->opcode, prefixBytes[0], prefixBytes[1], if (!ZydisDecodeVexPrefix(info->opcode, prefixBytes[0], prefixBytes[1],
info)) info))
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_MALFORMED_VEX; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_MALFORMED_VEX;
return ZYDIS_STATUS_DECODER_MALFORMED_VEX_PREFIX; return ZYDIS_STATUS_DECODER_MALFORMED_VEX;
} }
info->opcodeMap = info->details.vex.m_mmmm; info->opcodeMap = info->details.vex.m_mmmm;
break; break;
case 0x62: case 0x62:
// Decode evex-prefix // Decode evex-prefix
info->encoding = ZYDIS_INSTRUCTION_ENCODING_EVEX; info->encoding = ZYDIS_INSTRUCTION_ENCODING_EVEX;
info->prefixes |= ZYDIS_PREFIX_EVEX; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_EVEX;
if (!ZydisDecodeEvexPrefix(prefixBytes[0], prefixBytes[1], prefixBytes[2], if (!ZydisDecodeEvexPrefix(prefixBytes[0], prefixBytes[1], prefixBytes[2],
info)) info))
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_MALFORMED_EVEX; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_MALFORMED_EVEX;
return ZYDIS_STATUS_DECODER_MALFORMED_EVEX_PREFIX; return ZYDIS_STATUS_DECODER_MALFORMED_EVEX;
} }
info->opcodeMap = info->details.evex.mm; info->opcodeMap = info->details.evex.mm;
break; break;
@ -1846,9 +1845,9 @@ static ZydisDecoderStatus ZydisNodeHandlerOpcode(ZydisInstructionDecoder* decode
ZYDIS_CHECK(ZydisInputPeek(decoder, info, &nextInput)); ZYDIS_CHECK(ZydisInputPeek(decoder, info, &nextInput));
if (((nextInput >> 0) & 0x1F) >= 8) if (((nextInput >> 0) & 0x1F) >= 8)
{ {
if (info->prefixes & ZYDIS_PREFIX_REX) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REX)
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_ILLEGAL_REX; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_ILLEGAL_REX;
return ZYDIS_STATUS_DECODER_ILLEGAL_REX; return ZYDIS_STATUS_DECODER_ILLEGAL_REX;
} }
uint8_t prefixBytes[2]; uint8_t prefixBytes[2];
@ -1858,11 +1857,11 @@ static ZydisDecoderStatus ZydisNodeHandlerOpcode(ZydisInstructionDecoder* decode
ZYDIS_CHECK(ZydisInputNext(decoder, info, &prefixBytes[1])); ZYDIS_CHECK(ZydisInputNext(decoder, info, &prefixBytes[1]));
// Decode xop-prefix // Decode xop-prefix
info->encoding = ZYDIS_INSTRUCTION_ENCODING_XOP; info->encoding = ZYDIS_INSTRUCTION_ENCODING_XOP;
info->prefixes |= ZYDIS_PREFIX_XOP; info->prefixFlags |= ZYDIS_PREFIXFLAG_HAS_XOP;
if (!ZydisDecodeXopPrefix(prefixBytes[0], prefixBytes[1], info)) if (!ZydisDecodeXopPrefix(prefixBytes[0], prefixBytes[1], info))
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_MALFORMED_XOP; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_MALFORMED_XOP;
return ZYDIS_STATUS_DECODER_MALFORMED_XOP_PREFIX; return ZYDIS_STATUS_DECODER_MALFORMED_XOP;
} }
info->opcodeMap = ZYDIS_OPCODE_MAP_XOP8 + info->details.xop.m_mmmm - 0x08; info->opcodeMap = ZYDIS_OPCODE_MAP_XOP8 + info->details.xop.m_mmmm - 0x08;
} }
@ -1974,18 +1973,18 @@ static ZydisDecoderStatus ZydisNodeHandlerMandatoryPrefix(ZydisInstructionInfo*
ZYDIS_ASSERT(info); ZYDIS_ASSERT(info);
ZYDIS_ASSERT(index); ZYDIS_ASSERT(index);
if (info->prefixes & ZYDIS_PREFIX_REP) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REP)
{ {
*index = 2; *index = 2;
info->prefixes &= ~ ZYDIS_PREFIX_REP; // TODO: don't remove but mark as mandatory info->prefixFlags &= ~ ZYDIS_PREFIXFLAG_HAS_REP; // TODO: don't remove but mark as mandatory
} else if (info->prefixes & ZYDIS_PREFIX_REPNE) } else if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REPNE)
{ {
*index = 3; *index = 3;
info->prefixes &= ~ ZYDIS_PREFIX_REPNE; // TODO: don't remove but mark as mandatory info->prefixFlags &= ~ ZYDIS_PREFIXFLAG_HAS_REPNE; // TODO: don't remove but mark as mandatory
} else if (info->prefixes & ZYDIS_PREFIX_OPERANDSIZE) } else if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_OPERANDSIZE)
{ {
*index = 1; *index = 1;
info->prefixes &= ~ ZYDIS_PREFIX_OPERANDSIZE; // TODO: don't remove but mark as mandatory info->prefixFlags &= ~ ZYDIS_PREFIXFLAG_HAS_OPERANDSIZE; // TODO: don't remove but mark as mandatory
} }
return ZYDIS_STATUS_DECODER_SUCCESS; return ZYDIS_STATUS_DECODER_SUCCESS;
} }
@ -2048,16 +2047,16 @@ static ZydisDecoderStatus ZydisNodeHandlerOperandSize(ZydisInstructionDecoder* d
ZYDIS_ASSERT(info); ZYDIS_ASSERT(info);
ZYDIS_ASSERT(index); ZYDIS_ASSERT(index);
info->prefixes |= ZYDIS_PREFIX_ACCEPTS_OPERANDSIZE; info->prefixFlags |= ZYDIS_PREFIXFLAG_ACCEPTS_OPERANDSIZE;
switch (decoder->disassemblerMode) switch (decoder->disassemblerMode)
{ {
case ZYDIS_DISASSEMBLER_MODE_16BIT: case ZYDIS_DISASSEMBLER_MODE_16BIT:
*index = (info->prefixes & ZYDIS_PREFIX_OPERANDSIZE) ? 1 : 0; *index = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_OPERANDSIZE) ? 1 : 0;
break; break;
case ZYDIS_DISASSEMBLER_MODE_32BIT: case ZYDIS_DISASSEMBLER_MODE_32BIT:
case ZYDIS_DISASSEMBLER_MODE_64BIT: case ZYDIS_DISASSEMBLER_MODE_64BIT:
*index = (info->prefixes & ZYDIS_PREFIX_OPERANDSIZE) ? 0 : 1; *index = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_OPERANDSIZE) ? 0 : 1;
break; break;
default: default:
ZYDIS_UNREACHABLE; ZYDIS_UNREACHABLE;
@ -2072,18 +2071,18 @@ static ZydisDecoderStatus ZydisNodeHandlerAddressSize(ZydisInstructionDecoder* d
ZYDIS_ASSERT(info); ZYDIS_ASSERT(info);
ZYDIS_ASSERT(index); ZYDIS_ASSERT(index);
info->prefixes |= ZYDIS_PREFIX_ACCEPTS_ADDRESSSIZE; info->prefixFlags |= ZYDIS_PREFIXFLAG_ACCEPTS_ADDRESSSIZE;
switch (decoder->disassemblerMode) switch (decoder->disassemblerMode)
{ {
case ZYDIS_DISASSEMBLER_MODE_16BIT: case ZYDIS_DISASSEMBLER_MODE_16BIT:
*index = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 1 : 0; *index = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 1 : 0;
break; break;
case ZYDIS_DISASSEMBLER_MODE_32BIT: case ZYDIS_DISASSEMBLER_MODE_32BIT:
*index = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 0 : 1; *index = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 0 : 1;
break; break;
case ZYDIS_DISASSEMBLER_MODE_64BIT: case ZYDIS_DISASSEMBLER_MODE_64BIT:
*index = (info->prefixes & ZYDIS_PREFIX_ADDRESSSIZE) ? 1 : 2; *index = (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_ADDRESSSIZE) ? 1 : 2;
break; break;
default: default:
ZYDIS_UNREACHABLE; ZYDIS_UNREACHABLE;
@ -2211,8 +2210,8 @@ static ZydisDecoderStatus ZydisDecodeOpcode(ZydisInstructionDecoder* decoder,
{ {
case ZYDIS_NODETYPE_INVALID: case ZYDIS_NODETYPE_INVALID:
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_INVALID; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_UNDEFINED;
return ZYDIS_STATUS_DECODER_INVALID_INSTRUCTION; return ZYDIS_STATUS_DECODER_UNDEFINED_INSTRUCTION;
} }
case ZYDIS_NODETYPE_DEFINITION_0OP: case ZYDIS_NODETYPE_DEFINITION_0OP:
case ZYDIS_NODETYPE_DEFINITION_1OP: case ZYDIS_NODETYPE_DEFINITION_1OP:
@ -2250,8 +2249,8 @@ static ZydisDecoderStatus ZydisDecodeOpcode(ZydisInstructionDecoder* decoder,
node = ZydisInstructionTableGetChildNode(node, info->opcode); node = ZydisInstructionTableGetChildNode(node, info->opcode);
if (ZydisInstructionTableGetNodeType(node) == ZYDIS_NODETYPE_INVALID) if (ZydisInstructionTableGetNodeType(node) == ZYDIS_NODETYPE_INVALID)
{ {
info->flags |= ZYDIS_INSTRUCTION_ERROR_INVALID; info->instrFlags |= ZYDIS_INSTRFLAG_ERROR_UNDEFINED;
return ZYDIS_STATUS_DECODER_INVALID_INSTRUCTION; return ZYDIS_STATUS_DECODER_UNDEFINED_INSTRUCTION;
} }
node = ZydisInstructionTableGetChildNode(node, node = ZydisInstructionTableGetChildNode(node,
(info->details.modrm.mod == 0x3) ? 1 : 0); (info->details.modrm.mod == 0x3) ? 1 : 0);
@ -2524,7 +2523,7 @@ ZydisStatus ZydisDecoderDecodeNextInstruction(ZydisInstructionDecoder* decoder,
DecodeError: DecodeError:
{ {
uint32_t flags = info->flags; uint32_t flags = info->instrFlags;
uint8_t firstByte = info->data[0]; uint8_t firstByte = info->data[0];
uint64_t instrAddress = info->instrAddress; uint64_t instrAddress = info->instrAddress;
memset(info, 0, sizeof(*info)); memset(info, 0, sizeof(*info));
@ -2551,7 +2550,7 @@ DecodeError:
++decoder->instructionPointer; ++decoder->instructionPointer;
info->mode = decoder->disassemblerMode; info->mode = decoder->disassemblerMode;
info->flags = flags & ZYDIS_INSTRUCTION_ERROR_MASK; info->instrFlags = flags & ZYDIS_INSTRFLAG_ERROR_MASK;
info->length = 1; info->length = 1;
info->data[0] = firstByte; info->data[0] = firstByte;
info->instrAddress = instrAddress; info->instrAddress = instrAddress;
@ -2559,7 +2558,7 @@ DecodeError:
if (!decoder->flags & ZYDIS_DECODER_FLAG_SKIP_DATA) if (!decoder->flags & ZYDIS_DECODER_FLAG_SKIP_DATA)
{ {
return ZYDIS_STATUS_INVALID_INSTRUCTION; return ZYDIS_STATUS_DECODING_ERROR;
} }
} }
return ZYDIS_STATUS_SUCCESS; return ZYDIS_STATUS_SUCCESS;

52
src/Formatter.c
View File

@ -58,14 +58,14 @@
/* ---------------------------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------------------------- */
/** /**
* @brief Inserts the @c text into the @c buffer at the given @c offset and increases the * @brief Appends the @c text to the @c buffer at the given @c offset and increases the
* @c offset by the length of the text. * @c offset by the length of the @c text.
* *
* @param buffer A pointer to the target buffer. * @param buffer A pointer to the target buffer.
* @param bufferLen The length of the buffer. * @param bufferLen The length of the buffer.
* @param offset A pointer to the buffer-offset. * @param offset A pointer to the buffer-offset.
* @param text The text to insert.
* @param uppercase Set true, to convert to uppercase characters. * @param uppercase Set true, to convert to uppercase characters.
* @param text The text to append.
* *
* @return A zydis status code. * @return A zydis status code.
*/ */
@ -95,12 +95,13 @@ static ZydisStatus ZydisBufferAppend(char* buffer, size_t bufferLen, size_t* off
} }
/** /**
* @brief Inserts formatted text into the @c buffer at the given @c offset and increases the * @brief Appends formatted to into the @c buffer at the given @c offset and increases the
* @c offset by the length of the text. * @c offset by the length of the @c text.
* *
* @param buffer A pointer to the target buffer. * @param buffer A pointer to the target buffer.
* @param bufferLen The length of the buffer. * @param bufferLen The length of the buffer.
* @param offset A pointer to the buffer-offset. * @param offset A pointer to the buffer-offset.
* @param uppercase Set true, to convert to uppercase characters.
* @param format The format string. * @param format The format string.
* *
* @return A zydis status code. * @return A zydis status code.
@ -199,24 +200,17 @@ static ZydisStatus ZydisBufferAppendAbsoluteAddress(const ZydisInstructionFormat
switch (info->mode) switch (info->mode)
{ {
case ZYDIS_DISASSEMBLER_MODE_16BIT: case ZYDIS_DISASSEMBLER_MODE_16BIT:
return ZydisBufferAppendFormat(buffer, bufferLen, offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "0x%04X", address);
case ZYDIS_DISASSEMBLER_MODE_32BIT: case ZYDIS_DISASSEMBLER_MODE_32BIT:
case ZYDIS_DISASSEMBLER_MODE_64BIT: if (operand->size == 16)
switch (operand->size)
{ {
case 16:
return ZydisBufferAppendFormat(buffer, bufferLen, offset, return ZydisBufferAppendFormat(buffer, bufferLen, offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "0x%04X", address); (formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "0x%04X", address);
case 32:
return ZydisBufferAppendFormat(buffer, bufferLen, offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "0x%08lX", address);
case 64:
return ZydisBufferAppendFormat(buffer, bufferLen, offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "0x%016llX", address);
default:
return ZYDIS_STATUS_INVALID_PARAMETER;
} }
return ZydisBufferAppendFormat(buffer, bufferLen, offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "0x%08lX", address);
case ZYDIS_DISASSEMBLER_MODE_64BIT:
return ZydisBufferAppendFormat(buffer, bufferLen, offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "0x%016llX", address);
default: default:
return ZYDIS_STATUS_INVALID_PARAMETER; return ZYDIS_STATUS_INVALID_PARAMETER;
} }
@ -233,7 +227,7 @@ static ZydisStatus ZydisBufferAppendImmediate(const ZydisInstructionFormatter* f
ZYDIS_ASSERT(info); ZYDIS_ASSERT(info);
ZYDIS_ASSERT(operand); ZYDIS_ASSERT(operand);
if ((formatter->addressFormat == ZYDIS_FORMATTER_ADDRESS_ABSOLUTE) && if ((formatter->addressFormat == ZYDIS_FORMATTER_ADDR_ABSOLUTE) &&
(operand->imm.isRelative)) (operand->imm.isRelative))
{ {
return ZydisBufferAppendAbsoluteAddress(formatter, buffer, bufferLen, offset, info, return ZydisBufferAppendAbsoluteAddress(formatter, buffer, bufferLen, offset, info,
@ -241,7 +235,7 @@ static ZydisStatus ZydisBufferAppendImmediate(const ZydisInstructionFormatter* f
} }
bool useSignedHex = ((operand->imm.isSigned && bool useSignedHex = ((operand->imm.isSigned &&
(formatter->addressFormat == ZYDIS_FORMATTER_ADDRESS_RELATIVE_SIGNED)) || (formatter->addressFormat == ZYDIS_FORMATTER_ADDR_RELATIVE_SIGNED)) ||
(!operand->imm.isSigned && (formatter->immediateFormat == ZYDIS_FORMATTER_IMM_HEX_SIGNED))); (!operand->imm.isSigned && (formatter->immediateFormat == ZYDIS_FORMATTER_IMM_HEX_SIGNED)));
if (useSignedHex && (operand->imm.value.sqword < 0)) if (useSignedHex && (operand->imm.value.sqword < 0))
@ -340,9 +334,9 @@ static ZydisStatus ZydisBufferAppendOperandIntelMemory(const ZydisInstructionFor
{ {
if ((formatter->flags & ZYDIS_FORMATTER_FLAG_ALWAYS_DISPLAY_MEMORY_SEGMENT) || if ((formatter->flags & ZYDIS_FORMATTER_FLAG_ALWAYS_DISPLAY_MEMORY_SEGMENT) ||
(((operand->mem.segment != ZYDIS_REGISTER_DS) || (((operand->mem.segment != ZYDIS_REGISTER_DS) ||
(info->prefixes & ZYDIS_PREFIX_SEGMENT_DS)) && (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_DS)) &&
((operand->mem.segment != ZYDIS_REGISTER_SS) || ((operand->mem.segment != ZYDIS_REGISTER_SS) ||
(info->prefixes & ZYDIS_PREFIX_SEGMENT_SS)))) (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_SEGMENT_SS))))
{ {
ZYDIS_CHECK(ZydisBufferAppendFormat(buffer, bufferLen, offset, ZYDIS_CHECK(ZydisBufferAppendFormat(buffer, bufferLen, offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "%s:", (formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "%s:",
@ -446,27 +440,27 @@ static ZydisStatus ZydisFormatterFormatInstructionIntel(ZydisInstructionFormatte
{ {
size_t offset = 0; size_t offset = 0;
if ((info->prefixes & ZYDIS_PREFIX_ACCEPTS_REPNE) && if ((info->prefixFlags & ZYDIS_PREFIXFLAG_ACCEPTS_REPNE) &&
(info->prefixes & ZYDIS_PREFIX_REPNE)) (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REPNE))
{ {
ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset, ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "repne ")); (formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "repne "));
} }
if ((info->prefixes & ZYDIS_PREFIX_ACCEPTS_REP) && (info->prefixes & ZYDIS_PREFIX_REP)) if ((info->prefixFlags & ZYDIS_PREFIXFLAG_ACCEPTS_REP) && (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_REP))
{ {
ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset, ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "rep ")); (formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "rep "));
} }
if ((info->prefixes & ZYDIS_PREFIX_ACCEPTS_LOCK) && (info->prefixes & ZYDIS_PREFIX_LOCK)) if ((info->prefixFlags & ZYDIS_PREFIXFLAG_ACCEPTS_LOCK) && (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_LOCK))
{ {
ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset, ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "lock ")); (formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "lock "));
} }
if (info->prefixes & ZYDIS_PREFIX_XACQUIRE) if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_XACQUIRE)
{ {
ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset, ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "xacquire ")); (formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "xacquire "));
} else if (info->prefixes & ZYDIS_PREFIX_XRELEASE) } else if (info->prefixFlags & ZYDIS_PREFIXFLAG_HAS_XRELEASE)
{ {
ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset, ZYDIS_CHECK(ZydisBufferAppend(buffer, bufferLen, &offset,
(formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "xrelease ")); (formatter->flags & ZYDIS_FORMATTER_FLAG_UPPERCASE), "xrelease "));
@ -652,7 +646,7 @@ ZydisStatus ZydisFormatterInitInstructionFormatterEx(
} }
formatter->style = style; formatter->style = style;
formatter->flags = flags; formatter->flags = flags;
formatter->addressFormat = ZYDIS_FORMATTER_ADDRESS_ABSOLUTE; formatter->addressFormat = ZYDIS_FORMATTER_ADDR_ABSOLUTE;
formatter->displacementFormat = ZYDIS_FORMATTER_DISP_HEX_SIGNED; formatter->displacementFormat = ZYDIS_FORMATTER_DISP_HEX_SIGNED;
formatter->immediateFormat = ZYDIS_FORMATTER_IMM_HEX_UNSIGNED; formatter->immediateFormat = ZYDIS_FORMATTER_IMM_HEX_UNSIGNED;
formatter->symbolResolver = NULL; formatter->symbolResolver = NULL;

31
src/InstructionTable.c
View File

@ -51,21 +51,32 @@ typedef struct ZydisInternalInstructionTableNode_
#define ZYDIS_GET_INSTRUCTIONTABLENODE_VALUE(node) \ #define ZYDIS_GET_INSTRUCTIONTABLENODE_VALUE(node) \
node.value node.value
typedef struct ZydisInternalOperandDefinition_ //typedef struct ZydisInternalOperandDefinition_
{ //{
unsigned int type : 8; // unsigned int type : 8;
unsigned int encoding : 8; // unsigned int encoding : 8;
unsigned int access : 2; // unsigned int access : 2;
} ZydisInternalOperandDefinition; //} ZydisInternalOperandDefinition;
//
//#define ZYDIS_MAKE_OPERANDDEFINITION(type, encoding, access) \
// { type, encoding, access }
//#define ZYDIS_GET_OPERANDDEFINITION_TYPE(def) \
// (ZydisSemanticOperandType)def.type
//#define ZYDIS_GET_OPERANDDEFINITION_ENCODING(def) \
// (ZydisOperandEncoding)def.encoding
//#define ZYDIS_GET_OPERANDDEFINITION_ACCESS(def) \
// (ZydisOperandAccess)def.access
typedef uint8_t ZydisInternalOperandDefinition[2];
#define ZYDIS_MAKE_OPERANDDEFINITION(type, encoding, access) \ #define ZYDIS_MAKE_OPERANDDEFINITION(type, encoding, access) \
{ type, encoding, access } { type, ((encoding & 0x3F) << 2) | (access & 0x03) }
#define ZYDIS_GET_OPERANDDEFINITION_TYPE(def) \ #define ZYDIS_GET_OPERANDDEFINITION_TYPE(def) \
(ZydisSemanticOperandType)def.type def[0]
#define ZYDIS_GET_OPERANDDEFINITION_ENCODING(def) \ #define ZYDIS_GET_OPERANDDEFINITION_ENCODING(def) \
(ZydisOperandEncoding)def.encoding ((def[1] >> 2) & 0x3F)
#define ZYDIS_GET_OPERANDDEFINITION_ACCESS(def) \ #define ZYDIS_GET_OPERANDDEFINITION_ACCESS(def) \
(ZydisOperandAccess)def.access (def[1] & 0x03)
typedef struct ZydisInternalInstructionDefinition_ typedef struct ZydisInternalInstructionDefinition_
{ {

2
src/Register.c
View File

@ -322,7 +322,7 @@ ZydisRegisterSize ZydisRegisterGetSize(ZydisRegister reg)
case ZYDIS_REGISTERCLASS_TABLE: case ZYDIS_REGISTERCLASS_TABLE:
return ZYDIS_REGISTERSIZE_DYNAMIC; return ZYDIS_REGISTERSIZE_DYNAMIC;
case ZYDIS_REGISTERCLASS_TEST: case ZYDIS_REGISTERCLASS_TEST:
return ZYDIS_REGISTERSIZE_INVALID; // TODO: return ZYDIS_REGISTERSIZE_32;
case ZYDIS_REGISTERCLASS_CONTROL: case ZYDIS_REGISTERCLASS_CONTROL:
return ZYDIS_REGISTERSIZE_DYNAMIC; return ZYDIS_REGISTERSIZE_DYNAMIC;
case ZYDIS_REGISTERCLASS_DEBUG: case ZYDIS_REGISTERCLASS_DEBUG:

19
src/Utils.c
View File

@ -61,23 +61,20 @@ ZydisStatus ZydisUtilsCalcAbsoluteTargetAddress(const ZydisInstructionInfo* info
} }
break; break;
case ZYDIS_OPERAND_TYPE_IMMEDIATE: case ZYDIS_OPERAND_TYPE_IMMEDIATE:
if (operand->imm.isSigned || operand->imm.isRelative) if (operand->imm.isSigned && operand->imm.isRelative)
{ {
*address = (uint64_t)((int64_t)info->instrPointer + operand->imm.value.sqword); *address = (uint64_t)((int64_t)info->instrPointer + operand->imm.value.sqword);
switch (operand->size) switch (info->mode)
{ {
case 16: case ZYDIS_DISASSEMBLER_MODE_16BIT:
*address = (uint16_t)*address; case ZYDIS_DISASSEMBLER_MODE_32BIT:
break; if (operand->size == 16)
case 32:
assert((info->mode != ZYDIS_DISASSEMBLER_MODE_64BIT)); // TODO: Remove after fuzzing
if (info->mode != ZYDIS_DISASSEMBLER_MODE_64BIT)
{ {
*address = (uint32_t)*address; *address &= 0xFFFF;
} }
break; break;
case 64: case ZYDIS_DISASSEMBLER_MODE_64BIT:
assert((info->mode == ZYDIS_DISASSEMBLER_MODE_64BIT)); // TODO: Remove after fuzzing assert((operand->size == 64)); // TODO: Remove after fuzzing
break; break;
default: default:
return ZYDIS_STATUS_INVALID_PARAMETER; return ZYDIS_STATUS_INVALID_PARAMETER;

2
tools/ZydisDisasm.c
View File

@ -78,7 +78,7 @@ int main(int argc, char** argv)
ZydisInstructionInfo info; ZydisInstructionInfo info;
while (ZYDIS_SUCCESS(ZydisDecoderDecodeNextInstruction(&decoder, &info))) while (ZYDIS_SUCCESS(ZydisDecoderDecodeNextInstruction(&decoder, &info)))
{ {
if (info.flags & ZYDIS_IFLAG_ERROR_MASK) if (info.instrFlags & ZYDIS_INSTRFLAG_ERROR_MASK)
{ {
printf("db %02X\n", info.data[0]); printf("db %02X\n", info.data[0]);
continue; continue;

6
tools/ZydisFuzzIn.c
View File

@ -24,7 +24,9 @@
***************************************************************************************************/ ***************************************************************************************************/
/* /**
* @file
*
* This file implements a tool that is supposed to be fed as input for fuzzers like AFL, * This file implements a tool that is supposed to be fed as input for fuzzers like AFL,
* reading a control block from stdin, allowing the fuzzer to reach every possible * reading a control block from stdin, allowing the fuzzer to reach every possible
* code-path, testing any possible combination of disassembler configurations. * code-path, testing any possible combination of disassembler configurations.
@ -85,7 +87,7 @@ int main()
char *outBuf = malloc(controlBlock.bufSize); char *outBuf = malloc(controlBlock.bufSize);
while (ZYDIS_SUCCESS(ZydisDecoderDecodeNextInstruction(&decoder, &info))) while (ZYDIS_SUCCESS(ZydisDecoderDecodeNextInstruction(&decoder, &info)))
{ {
if (info.flags & ZYDIS_IFLAG_ERROR_MASK) if (info.instrFlags & ZYDIS_INSTRFLAG_ERROR_MASK)
{ {
printf("db %02X\n", info.data[0]); printf("db %02X\n", info.data[0]);
continue; continue;