FormatterBase.h File Reference

Provides formatter functions that are shared between the different formatters. More...

#include <Zydis/Formatter.h>
#include <Zydis/Internal/String.h>

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Data Structures
struct	ZydisPredefinedToken_

Macros
#define	ZYDIS_STRING_APPEND_NUM_U(formatter, base, str, value, padding_length)
	Appends an unsigned numeric value to the given string. More...
#define	ZYDIS_STRING_APPEND_NUM_S(formatter, base, str, value, padding_length, force_sign)
	Appends a signed numeric value to the given string. More...
#define	ZYDIS_BUFFER_APPEND_TOKEN(buffer, type)
	Invokes the ZydisFormatterBufferAppend routine, if tokenization is enabled for the current pass. More...
#define	ZYDIS_BUFFER_REMEMBER(buffer, state)
	Returns a snapshot of the buffer-state. More...
#define	ZYDIS_BUFFER_APPEND(buffer, name)
	Appends a string (STR_-prefix) or a predefined token-list (TOK_-prefix). More...
#define	ZYDIS_BUFFER_APPEND_CASE(buffer, name, letter_case)
	Appends a string (STR_-prefix) or a predefined token-list (TOK_-prefix). More...

Typedefs
typedef struct ZydisPredefinedToken_	ZydisPredefinedToken

Functions
ZYAN_INLINE ZyanStatus	ZydisFormatterBufferAppendPredefined (ZydisFormatterBuffer *buffer, const ZydisPredefinedToken *data)
	Appends a predefined token-list to the buffer. More...
ZyanU32	ZydisFormatterHelperGetExplicitSize (const ZydisFormatter *formatter, ZydisFormatterContext *context, ZyanU8 memop_id)
	Returns the size to be used as explicit size suffix (AT&T) or explicit typecast (INTEL), if required. More...
ZyanStatus	ZydisFormatterBaseFormatOperandREG (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context)
ZyanStatus	ZydisFormatterBaseFormatOperandPTR (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context)
ZyanStatus	ZydisFormatterBaseFormatOperandIMM (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context)
ZyanStatus	ZydisFormatterBasePrintAddressABS (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context)
ZyanStatus	ZydisFormatterBasePrintAddressREL (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context)
ZyanStatus	ZydisFormatterBasePrintIMM (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context)
ZyanStatus	ZydisFormatterBasePrintSegment (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context)
ZyanStatus	ZydisFormatterBasePrintPrefixes (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context)
ZyanStatus	ZydisFormatterBasePrintDecorator (const ZydisFormatter *formatter, ZydisFormatterBuffer *buffer, ZydisFormatterContext *context, ZydisDecorator decorator)

Detailed Description

Provides formatter functions that are shared between the different formatters.

Macro Definition Documentation

ZYDIS_BUFFER_APPEND

#define ZYDIS_BUFFER_APPEND	(		buffer,
			name
	)

Value:

    if ((buffer)->is_token_list) \
    { \
        ZYAN_CHECK(ZydisFormatterBufferAppendPredefined(buffer, TOK_ ## name)); \
    } else \
    { \
        ZYAN_CHECK(ZydisStringAppendShort(&buffer->string, &STR_ ## name)); \
    }

Appends a string (STR_-prefix) or a predefined token-list (TOK_-prefix).

Parameters

buffer	A pointer to the ZydisFormatterBuffer struct.
name	The base name (without prefix) of the string- or token.

ZYDIS_BUFFER_APPEND_CASE

#define ZYDIS_BUFFER_APPEND_CASE	(		buffer,
			name,
			letter_case
	)

Value:

    if ((buffer)->is_token_list) \
    { \
        ZYAN_CHECK(ZydisFormatterBufferAppendPredefined(buffer, TOK_ ## name)); \
    } else \
    { \
        ZYAN_CHECK(ZydisStringAppendShortCase(&buffer->string, &STR_ ## name, letter_case)); \
    }

Appends a string (STR_-prefix) or a predefined token-list (TOK_-prefix).

Parameters

buffer	A pointer to the ZydisFormatterBuffer struct.
name	The base name (without prefix) of the string- or token.
letter-case	The desired letter-case.

ZYDIS_BUFFER_APPEND_TOKEN

#define ZYDIS_BUFFER_APPEND_TOKEN	(		buffer,
			type
	)

Value:

    if ((buffer)->is_token_list) \
    { \
        ZYAN_CHECK(ZydisFormatterBufferAppend(buffer, type)); \
    }

Invokes the ZydisFormatterBufferAppend routine, if tokenization is enabled for the current pass.

Parameters

buffer	A pointer to the ZydisFormatterBuffer struct.
type	The token type.

Using this macro instead of direct calls to ZydisFormatterBufferAppend greatly improves the performance for non-tokenizing passes.

ZYDIS_BUFFER_REMEMBER

#define ZYDIS_BUFFER_REMEMBER	(		buffer,
			state
	)

Value:

    if ((buffer)->is_token_list) \
    { \
        (state) = (ZyanUPointer)(buffer)->string.vector.data; \
    } else \
    { \
        (state) = (ZyanUPointer)(buffer)->string.vector.size; \
    }

Returns a snapshot of the buffer-state.

Parameters

buffer	A pointer to the ZydisFormatterBuffer struct.
state	Receives a snapshot of the buffer-state.

Using this macro instead of direct calls to ZydisFormatterBufferRemember improves the performance for non-tokenizing passes.

ZYDIS_STRING_APPEND_NUM_S

#define ZYDIS_STRING_APPEND_NUM_S	(		formatter,
			base,
			str,
			value,
			padding_length,
			force_sign
	)

Value:

    switch (base) \
    { \
    case ZYDIS_NUMERIC_BASE_DEC: \
        ZYAN_CHECK(ZydisStringAppendDecS(str, value, padding_length, force_sign, \
            (formatter)->number_format[base][0].string, \
            (formatter)->number_format[base][1].string)); \
        break; \
    case ZYDIS_NUMERIC_BASE_HEX: \
        ZYAN_CHECK(ZydisStringAppendHexS(str, value, padding_length,  \
            (formatter)->hex_uppercase, force_sign, \
            (formatter)->number_format[base][0].string, \
            (formatter)->number_format[base][1].string)); \
        break; \
    default: \
        return ZYAN_STATUS_INVALID_ARGUMENT; \
    }

Appends a signed numeric value to the given string.

Parameters

formatter	A pointer to the ZydisFormatter instance.
base	The numeric base.
str	The destination string.
value	The value.
padding_length	The padding length.
force_sign	Forces printing of the '+' sign for positive numbers.

ZYDIS_STRING_APPEND_NUM_U

#define ZYDIS_STRING_APPEND_NUM_U	(		formatter,
			base,
			str,
			value,
			padding_length
	)

Value:

    switch (base) \
    { \
    case ZYDIS_NUMERIC_BASE_DEC: \
        ZYAN_CHECK(ZydisStringAppendDecU(str, value, padding_length, \
            (formatter)->number_format[base][0].string, \
            (formatter)->number_format[base][1].string)); \
        break; \
    case ZYDIS_NUMERIC_BASE_HEX: \
        ZYAN_CHECK(ZydisStringAppendHexU(str, value, padding_length, \
            (formatter)->hex_uppercase, \
            (formatter)->number_format[base][0].string, \
            (formatter)->number_format[base][1].string)); \
        break; \
    default: \
        return ZYAN_STATUS_INVALID_ARGUMENT; \
    }

Appends an unsigned numeric value to the given string.

Parameters

formatter	A pointer to the ZydisFormatter instance.
base	The numeric base.
str	The destination string.
value	The value.
padding_length	The padding length.

Typedef Documentation

ZydisPredefinedToken

typedef struct ZydisPredefinedToken_ ZydisPredefinedToken

Function Documentation

ZydisFormatterBaseFormatOperandIMM()

ZyanStatus ZydisFormatterBaseFormatOperandIMM	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context
	)

ZydisFormatterBaseFormatOperandPTR()

ZyanStatus ZydisFormatterBaseFormatOperandPTR	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context
	)

ZydisFormatterBaseFormatOperandREG()

ZyanStatus ZydisFormatterBaseFormatOperandREG	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context
	)

ZydisFormatterBasePrintAddressABS()

ZyanStatus ZydisFormatterBasePrintAddressABS	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context
	)

ZydisFormatterBasePrintAddressREL()

ZyanStatus ZydisFormatterBasePrintAddressREL	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context
	)

ZydisFormatterBasePrintDecorator()

ZyanStatus ZydisFormatterBasePrintDecorator	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context,
		ZydisDecorator	decorator
	)

ZydisFormatterBasePrintIMM()

ZyanStatus ZydisFormatterBasePrintIMM	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context
	)

ZydisFormatterBasePrintPrefixes()

ZyanStatus ZydisFormatterBasePrintPrefixes	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context
	)

ZydisFormatterBasePrintSegment()

ZyanStatus ZydisFormatterBasePrintSegment	(	const ZydisFormatter *	formatter,
		ZydisFormatterBuffer *	buffer,
		ZydisFormatterContext *	context
	)

ZydisFormatterBufferAppendPredefined()

ZYAN_INLINE ZyanStatus ZydisFormatterBufferAppendPredefined	(	ZydisFormatterBuffer *	buffer,
		const ZydisPredefinedToken *	data
	)

Appends a predefined token-list to the buffer.

Parameters

buffer	A pointer to the ZydisFormatterBuffer struct.
data	A pointer to the ZydisPredefinedToken struct.

Returns

A zycore status code.

This function is internally used to improve performance while adding static strings or multiple tokens at once.

ZydisFormatterHelperGetExplicitSize()

ZyanU32 ZydisFormatterHelperGetExplicitSize	(	const ZydisFormatter *	formatter,
		ZydisFormatterContext *	context,
		ZyanU8	memop_id
	)

Returns the size to be used as explicit size suffix (AT&T) or explicit typecast (INTEL), if required.

Parameters

formatter	A pointer to the ZydisFormatter instance.
context	A pointer to the ZydisFormatterContext struct.
memop_id	The operand-id of the instructions first memory operand.

Returns

Returns the explicit size, if required, or 0, if not needed.

This function always returns a size different to 0, if the ZYDIS_FORMATTER_PROP_FORCE_SIZE is set to ZYAN_TRUE.