i386-dis.c File Reference

#include <ntoskrnl.h>
#include <debug.h>
#include <setjmp.h>
#include "dis-asm.h"

Go to the source code of this file.

Data Structures
struct	dis_private
struct	dis386
Defines
#define	NDEBUG
#define	PARAMS(X)   X
#define	PTR   void*
#define	bfd_mach_x86_64_intel_syntax   0
#define	bfd_mach_x86_64   1
#define	bfd_mach_i386_i386_intel_syntax   2
#define	bfd_mach_i386_i386   3
#define	bfd_mach_i386_i8086   4
#define	abort()   DbgBreakPoint();
#define	_(X)   X
#define	ATTRIBUTE_UNUSED
#define	sprintf_vma(BUF, VMA)   sprintf(BUF, "%p", VMA)
#define	_INC_SETJMPEX
#define	MAXLEN   20
#define	UNIXWARE_COMPAT   1
#define	FWAIT_OPCODE   (0x9b)
#define	REX_MODE64   8
#define	REX_EXTX   4
#define	REX_EXTY   2
#define	REX_EXTZ   1
#define	USED_REX(value)
#define	PREFIX_REPZ   1
#define	PREFIX_REPNZ   2
#define	PREFIX_LOCK   4
#define	PREFIX_CS   8
#define	PREFIX_SS   0x10
#define	PREFIX_DS   0x20
#define	PREFIX_ES   0x40
#define	PREFIX_FS   0x80
#define	PREFIX_GS   0x100
#define	PREFIX_DATA   0x200
#define	PREFIX_ADDR   0x400
#define	PREFIX_FWAIT   0x800
#define	FETCH_DATA(info, addr)
#define	XX   NULL, 0
#define	Eb   OP_E, b_mode
#define	Ev   OP_E, v_mode
#define	Ed   OP_E, d_mode
#define	indirEb   OP_indirE, b_mode
#define	indirEv   OP_indirE, v_mode
#define	Ew   OP_E, w_mode
#define	Ma   OP_E, v_mode
#define	M   OP_E, 0 /* lea, lgdt, etc. */
#define	Mp   OP_E, 0 /* 32 or 48 bit memory operand for LDS, LES etc */
#define	Gb   OP_G, b_mode
#define	Gv   OP_G, v_mode
#define	Gd   OP_G, d_mode
#define	Gw   OP_G, w_mode
#define	Rd   OP_Rd, d_mode
#define	Rm   OP_Rd, m_mode
#define	Ib   OP_I, b_mode
#define	sIb   OP_sI, b_mode /* sign extened byte */
#define	Iv   OP_I, v_mode
#define	Iq   OP_I, q_mode
#define	Iv64   OP_I64, v_mode
#define	Iw   OP_I, w_mode
#define	Jb   OP_J, b_mode
#define	Jv   OP_J, v_mode
#define	Cm   OP_C, m_mode
#define	Dm   OP_D, m_mode
#define	Td   OP_T, d_mode
#define	RMeAX   OP_REG, eAX_reg
#define	RMeBX   OP_REG, eBX_reg
#define	RMeCX   OP_REG, eCX_reg
#define	RMeDX   OP_REG, eDX_reg
#define	RMeSP   OP_REG, eSP_reg
#define	RMeBP   OP_REG, eBP_reg
#define	RMeSI   OP_REG, eSI_reg
#define	RMeDI   OP_REG, eDI_reg
#define	RMrAX   OP_REG, rAX_reg
#define	RMrBX   OP_REG, rBX_reg
#define	RMrCX   OP_REG, rCX_reg
#define	RMrDX   OP_REG, rDX_reg
#define	RMrSP   OP_REG, rSP_reg
#define	RMrBP   OP_REG, rBP_reg
#define	RMrSI   OP_REG, rSI_reg
#define	RMrDI   OP_REG, rDI_reg
#define	RMAL   OP_REG, al_reg
#define	RMAL   OP_REG, al_reg
#define	RMCL   OP_REG, cl_reg
#define	RMDL   OP_REG, dl_reg
#define	RMBL   OP_REG, bl_reg
#define	RMAH   OP_REG, ah_reg
#define	RMCH   OP_REG, ch_reg
#define	RMDH   OP_REG, dh_reg
#define	RMBH   OP_REG, bh_reg
#define	RMAX   OP_REG, ax_reg
#define	RMDX   OP_REG, dx_reg
#define	eAX   OP_IMREG, eAX_reg
#define	eBX   OP_IMREG, eBX_reg
#define	eCX   OP_IMREG, eCX_reg
#define	eDX   OP_IMREG, eDX_reg
#define	eSP   OP_IMREG, eSP_reg
#define	eBP   OP_IMREG, eBP_reg
#define	eSI   OP_IMREG, eSI_reg
#define	eDI   OP_IMREG, eDI_reg
#define	AL   OP_IMREG, al_reg
#define	AL   OP_IMREG, al_reg
#define	CL   OP_IMREG, cl_reg
#define	DL   OP_IMREG, dl_reg
#define	BL   OP_IMREG, bl_reg
#define	AH   OP_IMREG, ah_reg
#define	CH   OP_IMREG, ch_reg
#define	DH   OP_IMREG, dh_reg
#define	BH   OP_IMREG, bh_reg
#define	AX   OP_IMREG, ax_reg
#define	DX   OP_IMREG, dx_reg
#define	indirDX   OP_IMREG, indir_dx_reg
#define	Sw   OP_SEG, w_mode
#define	Ap   OP_DIR, 0
#define	Ob   OP_OFF, b_mode
#define	Ob64   OP_OFF64, b_mode
#define	Ov   OP_OFF, v_mode
#define	Ov64   OP_OFF64, v_mode
#define	Xb   OP_DSreg, eSI_reg
#define	Xv   OP_DSreg, eSI_reg
#define	Yb   OP_ESreg, eDI_reg
#define	Yv   OP_ESreg, eDI_reg
#define	DSBX   OP_DSreg, eBX_reg
#define	es   OP_REG, es_reg
#define	ss   OP_REG, ss_reg
#define	cs   OP_REG, cs_reg
#define	ds   OP_REG, ds_reg
#define	fs   OP_REG, fs_reg
#define	gs   OP_REG, gs_reg
#define	MX   OP_MMX, 0
#define	XM   OP_XMM, 0
#define	EM   OP_EM, v_mode
#define	EX   OP_EX, v_mode
#define	MS   OP_MS, v_mode
#define	XS   OP_XS, v_mode
#define	None   OP_E, 0
#define	OPSUF   OP_3DNowSuffix, 0
#define	OPSIMD   OP_SIMD_Suffix, 0
#define	cond_jump_flag   NULL, cond_jump_mode
#define	loop_jcxz_flag   NULL, loop_jcxz_mode
#define	SUFFIX_ALWAYS   4
#define	AFLAG   2
#define	DFLAG   1
#define	b_mode   1 /* byte operand */
#define	v_mode   2 /* operand size depends on prefixes */
#define	w_mode   3 /* word operand */
#define	d_mode   4 /* double word operand */
#define	q_mode   5 /* quad word operand */
#define	x_mode   6
#define	m_mode   7 /* d_mode in 32bit, q_mode in 64bit mode. */
#define	cond_jump_mode   8
#define	loop_jcxz_mode   9
#define	es_reg   100
#define	cs_reg   101
#define	ss_reg   102
#define	ds_reg   103
#define	fs_reg   104
#define	gs_reg   105
#define	eAX_reg   108
#define	eCX_reg   109
#define	eDX_reg   110
#define	eBX_reg   111
#define	eSP_reg   112
#define	eBP_reg   113
#define	eSI_reg   114
#define	eDI_reg   115
#define	al_reg   116
#define	cl_reg   117
#define	dl_reg   118
#define	bl_reg   119
#define	ah_reg   120
#define	ch_reg   121
#define	dh_reg   122
#define	bh_reg   123
#define	ax_reg   124
#define	cx_reg   125
#define	dx_reg   126
#define	bx_reg   127
#define	sp_reg   128
#define	bp_reg   129
#define	si_reg   130
#define	di_reg   131
#define	rAX_reg   132
#define	rCX_reg   133
#define	rDX_reg   134
#define	rBX_reg   135
#define	rSP_reg   136
#define	rBP_reg   137
#define	rSI_reg   138
#define	rDI_reg   139
#define	indir_dx_reg   150
#define	FLOATCODE   1
#define	USE_GROUPS   2
#define	USE_PREFIX_USER_TABLE   3
#define	X86_64_SPECIAL   4
#define	FLOAT   NULL, NULL, FLOATCODE, NULL, 0, NULL, 0
#define	GRP1b   NULL, NULL, USE_GROUPS, NULL, 0, NULL, 0
#define	GRP1S   NULL, NULL, USE_GROUPS, NULL, 1, NULL, 0
#define	GRP1Ss   NULL, NULL, USE_GROUPS, NULL, 2, NULL, 0
#define	GRP2b   NULL, NULL, USE_GROUPS, NULL, 3, NULL, 0
#define	GRP2S   NULL, NULL, USE_GROUPS, NULL, 4, NULL, 0
#define	GRP2b_one   NULL, NULL, USE_GROUPS, NULL, 5, NULL, 0
#define	GRP2S_one   NULL, NULL, USE_GROUPS, NULL, 6, NULL, 0
#define	GRP2b_cl   NULL, NULL, USE_GROUPS, NULL, 7, NULL, 0
#define	GRP2S_cl   NULL, NULL, USE_GROUPS, NULL, 8, NULL, 0
#define	GRP3b   NULL, NULL, USE_GROUPS, NULL, 9, NULL, 0
#define	GRP3S   NULL, NULL, USE_GROUPS, NULL, 10, NULL, 0
#define	GRP4   NULL, NULL, USE_GROUPS, NULL, 11, NULL, 0
#define	GRP5   NULL, NULL, USE_GROUPS, NULL, 12, NULL, 0
#define	GRP6   NULL, NULL, USE_GROUPS, NULL, 13, NULL, 0
#define	GRP7   NULL, NULL, USE_GROUPS, NULL, 14, NULL, 0
#define	GRP8   NULL, NULL, USE_GROUPS, NULL, 15, NULL, 0
#define	GRP9   NULL, NULL, USE_GROUPS, NULL, 16, NULL, 0
#define	GRP10   NULL, NULL, USE_GROUPS, NULL, 17, NULL, 0
#define	GRP11   NULL, NULL, USE_GROUPS, NULL, 18, NULL, 0
#define	GRP12   NULL, NULL, USE_GROUPS, NULL, 19, NULL, 0
#define	GRP13   NULL, NULL, USE_GROUPS, NULL, 20, NULL, 0
#define	GRP14   NULL, NULL, USE_GROUPS, NULL, 21, NULL, 0
#define	GRPAMD   NULL, NULL, USE_GROUPS, NULL, 22, NULL, 0
#define	PREGRP0   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 0, NULL, 0
#define	PREGRP1   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 1, NULL, 0
#define	PREGRP2   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 2, NULL, 0
#define	PREGRP3   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 3, NULL, 0
#define	PREGRP4   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 4, NULL, 0
#define	PREGRP5   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 5, NULL, 0
#define	PREGRP6   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 6, NULL, 0
#define	PREGRP7   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 7, NULL, 0
#define	PREGRP8   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 8, NULL, 0
#define	PREGRP9   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 9, NULL, 0
#define	PREGRP10   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 10, NULL, 0
#define	PREGRP11   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 11, NULL, 0
#define	PREGRP12   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 12, NULL, 0
#define	PREGRP13   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 13, NULL, 0
#define	PREGRP14   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 14, NULL, 0
#define	PREGRP15   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 15, NULL, 0
#define	PREGRP16   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 16, NULL, 0
#define	PREGRP17   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 17, NULL, 0
#define	PREGRP18   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 18, NULL, 0
#define	PREGRP19   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 19, NULL, 0
#define	PREGRP20   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 20, NULL, 0
#define	PREGRP21   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 21, NULL, 0
#define	PREGRP22   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 22, NULL, 0
#define	PREGRP23   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 23, NULL, 0
#define	PREGRP24   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 24, NULL, 0
#define	PREGRP25   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 25, NULL, 0
#define	PREGRP26   NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 26, NULL, 0
#define	X86_64_0   NULL, NULL, X86_64_SPECIAL, NULL, 0, NULL, 0
#define	MODRM_CHECK   if (!need_modrm) abort ()
#define	INTERNAL_DISASSEMBLER_ERROR   _("<internal disassembler error>")
#define	ST   OP_ST, 0
#define	STi   OP_STi, 0
#define	FGRPd9_2   NULL, NULL, 0, NULL, 0, NULL, 0
#define	FGRPd9_4   NULL, NULL, 1, NULL, 0, NULL, 0
#define	FGRPd9_5   NULL, NULL, 2, NULL, 0, NULL, 0
#define	FGRPd9_6   NULL, NULL, 3, NULL, 0, NULL, 0
#define	FGRPd9_7   NULL, NULL, 4, NULL, 0, NULL, 0
#define	FGRPda_5   NULL, NULL, 5, NULL, 0, NULL, 0
#define	FGRPdb_4   NULL, NULL, 6, NULL, 0, NULL, 0
#define	FGRPde_3   NULL, NULL, 7, NULL, 0, NULL, 0
#define	FGRPdf_4   NULL, NULL, 8, NULL, 0, NULL, 0
Typedefs
typedef ULONG_PTR	bfd_vma
typedef unsigned char	bfd_byte
typedef void *	bfd
typedef LONG_PTR	bfd_signed_vma
typedef void op_rtn	PARAMS ((int bytemode, int sizeflag))
Enumerations
enum	bfd_flavour { bfd_target_unknown_flavour, bfd_target_unknown_flavour }
enum	bfd_arch { bfd_arch_i386, bfd_arch_i386 }
enum	bfd_endian {   BFD_ENDIAN_BIG, BIG_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN, BFD_ENDIAN_BIG,   BIG_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN }
Functions
int	sprintf (char *str, const char *format,...)
int	print_insn_i386 (bfd_vma pc, struct disassemble_info *info)
int	KdbpPrintDisasm (void *Ignored, const char *fmt,...)
int	KdbpNopPrintDisasm (void *Ignored, const char *fmt,...)
static int	KdbpReadMemory (ULONG_PTR Addr, unsigned char *Data, unsigned int Length, struct disassemble_info *Ignored)
static void	KdbpMemoryError (int Status, ULONG_PTR Addr, struct disassemble_info *Ignored)
static void	KdbpPrintAddressInCode (ULONG_PTR Addr, struct disassemble_info *Ignored)
static void	KdbpNopPrintAddress (ULONG_PTR Addr, struct disassemble_info *Ignored)
LONG	KdbpGetInstLength (IN ULONG_PTR Address)
LONG	KdbpDisassemble (IN ULONG_PTR Address, IN ULONG IntelSyntax)
static int fetch_data	PARAMS ((struct disassemble_info *, bfd_byte *))
static void ckprefix	PARAMS ((void))
static const char *prefix_name	PARAMS ((int, int))
static int print_insn	PARAMS ((bfd_vma, disassemble_info *))
static void dofloat	PARAMS ((int))
static int putop	PARAMS ((const char *, int))
static void oappend	PARAMS ((const char *))
static void print_operand_value	PARAMS ((char *, int, bfd_vma))
static void set_op	PARAMS ((bfd_vma, int))
static int	fetch_data (struct disassemble_info *info, bfd_byte *addr)
static void	ckprefix ()
static const char *	prefix_name (int pref, int sizeflag)
int	print_insn_i386_att (bfd_vma pc, disassemble_info *info)
int	print_insn_i386_intel (bfd_vma pc, disassemble_info *info)
static int	print_insn (bfd_vma pc, disassemble_info *info)
static void	dofloat (int sizeflag)
static void	oappend (char *s) const
static void	append_seg ()
static void	OP_indirE (int bytemode, int sizeflag)
static void	print_operand_value (char *buf, int hex, bfd_vma disp)
static void	OP_3DNowSuffix (bytemode, sizeflag)
static void	OP_SIMD_Suffix (bytemode, sizeflag)
static void	SIMD_Fixup (int extrachar, sizeflag)
static void	BadOp (void)
Variables
static int	mode_64bit = 1
static int	prefixes
static int	rex
static int	rex_used
static int	used_prefixes
static struct dis386	dis386 []
static struct dis386	dis386_twobyte []
static const unsigned char	onebyte_has_modrm [256]
static const unsigned char	twobyte_has_modrm [256]
static const unsigned char	twobyte_uses_SSE_prefix [256]
static char	obuf [100]
static char *	obufp
static char	scratchbuf [100]
static unsigned char *	start_codep
static unsigned char *	insn_codep
static unsigned char *	codep
static disassemble_info *	the_info
static int	mod
static int	rm
static int	reg
static unsigned char	need_modrm
static const char **	names64
static const char **	names32
static const char **	names16
static const char **	names8
static const char **	names8rex
static const char **	names_seg
static const char **	index16
static const char *	intel_names64 []
static const char *	intel_names32 []
static const char *	intel_names16 []
static const char *	intel_names8 []
static const char *	intel_names8rex []
static const char *	intel_names_seg []
static const char *	intel_index16 []
static const char *	att_names64 []
static const char *	att_names32 []
static const char *	att_names16 []
static const char *	att_names8 []
static const char *	att_names8rex []
static const char *	att_names_seg []
static const char *	att_index16 []
static struct dis386	grps [][8]
static struct dis386	prefix_user_table [][4]
static struct dis386	x86_64_table [][2]
static char	op1out [100]
static char	op2out [100]
static char	op3out [100]
static int	op_ad
static int	op_index [3]
static bfd_vma	op_address [3]
static bfd_vma	op_riprel [3]
static bfd_vma	start_pc
static char	intel_syntax
static char	open_char
static char	close_char
static char	separator_char
static char	scale_char
static const char *	float_mem []
static struct dis386	float_reg [][8]
static char *	fgrps [][8]
static void int bytemode	ATTRIBUTE_UNUSED
int	sizeflag
	return
static void int	bytemode
int	riprel
static const char *	simd_cmp_op []