/
db_disasm.c
1518 lines (1389 loc) · 44.7 KB
/
db_disasm.c
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/* $NetBSD: db_disasm.c,v 1.28 2021/05/23 08:59:08 riastradh Exp $ */
/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* Id: db_disasm.c,v 2.3 91/02/05 17:11:03 mrt (CMU)
*/
/*
* Instruction disassembler.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: db_disasm.c,v 1.28 2021/05/23 08:59:08 riastradh Exp $");
#ifndef _KERNEL
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ksyms.h>
#endif /* _KERNEL */
#include <sys/param.h>
#include <sys/proc.h>
#include <machine/db_machdep.h>
#include <ddb/db_access.h>
#include <ddb/db_sym.h>
#include <ddb/db_output.h>
#include <ddb/db_interface.h>
#ifndef _KERNEL
#define db_printsym(a, x, fn) fn("%lx ", (a))
#endif
/*
* Size attributes
*/
#define BYTE 0
#define WORD 1
#define LONG 2
#define QUAD 3
#define SNGL 4
#define DBLR 5
#define EXTR 6
#define SDEP 7
#define NONE 8
/*
* REX prefix and bits
*/
#define REX_B 1
#define REX_X 2
#define REX_R 4
#define REX_W 8
#define REX 0x40
/*
* Addressing modes
*/
#define E 1 /* general effective address */
#define Eind 2 /* indirect address (jump, call) */
#define Ew 3 /* address, word size */
#define Eb 4 /* address, byte size */
#define R 5 /* register, in 'reg' field */
#define Rw 6 /* word register, in 'reg' field */
#define Ri 7 /* register in instruction */
#define S 8 /* segment reg, in 'reg' field */
#define Si 9 /* segment reg, in instruction */
#define A 10 /* accumulator */
#define BX 11 /* (bx) */
#define CL 12 /* cl, for shifts */
#define DX 13 /* dx, for IO */
#define SI 14 /* si */
#define DI 15 /* di */
#define CR 16 /* control register */
#define DR 17 /* debug register */
#define TR 18 /* test register */
#define I 19 /* immediate, unsigned */
#define Is 20 /* immediate, signed */
#define Ib 21 /* byte immediate, unsigned */
#define Ibs 22 /* byte immediate, signed */
#define Iw 23 /* word immediate, unsigned */
#define Il 24 /* long immediate */
#define O 25 /* direct address */
#define Db 26 /* byte displacement from EIP */
#define Dl 27 /* long displacement from EIP */
#define o1 28 /* constant 1 */
#define o3 29 /* constant 3 */
#define OS 30 /* immediate offset/segment */
#define ST 31 /* FP stack top */
#define STI 32 /* FP stack */
#define X 33 /* extended FP op */
#define XA 34 /* for 'fstcw %ax' */
#define Ed 35 /* address, double size */
#define Iq 36 /* word immediate, maybe 64bits */
#define Rv 40 /* register in 'r/m' field */
struct inst {
const char *i_name; /* name */
short i_has_modrm; /* has regmodrm byte */
short i_size; /* operand size */
int i_mode; /* addressing modes */
const void *i_extra; /* pointer to extra opcode table */
};
#define op1(x) (x)
#define op2(x,y) ((x)|((y)<<8))
#define op3(x,y,z) ((x)|((y)<<8)|((z)<<16))
struct finst {
const char *f_name; /* name for memory instruction */
int f_size; /* size for memory instruction */
int f_rrmode; /* mode for rr instruction */
const void *f_rrname; /* name for rr instruction
(or pointer to table) */
};
const char * const db_Grp6[] = {
"sldt",
"str",
"lldt",
"ltr",
"verr",
"verw",
"",
""
};
const char * const db_Grp7[] = {
"sgdt",
"sidt",
"lgdt",
"lidt",
"smsw",
"",
"lmsw",
"invlpg"
};
const char * const db_Grp8[] = {
"",
"",
"",
"",
"bt",
"bts",
"btr",
"btc"
};
const char * const db_Grp9[] = {
"",
"cmpxchg8b",
"",
"",
"",
"",
"vmptrld",
"vmptrst"
};
const struct inst db_Grp9b[] = {
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "rdrand",true, LONG, op1(Rv), 0 },
{ "rdseed",true, LONG, op1(Rv), 0 }
};
const struct inst db_inst_0f0x[] = {
/*00*/ { "", true, NONE, op1(Ew), db_Grp6 },
/*01*/ { "", true, NONE, op1(Ew), db_Grp7 },
/*02*/ { "lar", true, LONG, op2(E,R), 0 },
/*03*/ { "lsl", true, LONG, op2(E,R), 0 },
/*04*/ { "", false, NONE, 0, 0 },
/*05*/ { "syscall",false,NONE, 0, 0 },
/*06*/ { "clts", false, NONE, 0, 0 },
/*07*/ { "sysret",false, NONE, 0, 0 },
/*08*/ { "invd", false, NONE, 0, 0 },
/*09*/ { "wbinvd",false, NONE, 0, 0 },
/*0a*/ { "", false, NONE, 0, 0 },
/*0b*/ { "ud2", false, NONE, 0, 0 },
/*0c*/ { "", false, NONE, 0, 0 },
/*0d*/ { "prefetch",true,NONE, op2(E,R), 0 }, /* Not 'R' really */
/*0e*/ { "", false, NONE, 0, 0 }, /* FEMMS (3DNow) */
/*0f*/ { "", false, NONE, 0, 0 }, /* 3DNow */
};
const struct inst db_inst_0f1x[] = {
/*10*/ { "", false, NONE, 0, 0 },
/*11*/ { "", false, NONE, 0, 0 },
/*12*/ { "", false, NONE, 0, 0 },
/*13*/ { "", false, NONE, 0, 0 },
/*14*/ { "", false, NONE, 0, 0 },
/*15*/ { "", false, NONE, 0, 0 },
/*16*/ { "", false, NONE, 0, 0 },
/*17*/ { "", false, NONE, 0, 0 },
/*18*/ { "", false, NONE, 0, 0 },
/*19*/ { "", false, NONE, 0, 0 },
/*1a*/ { "", false, NONE, 0, 0 },
/*1b*/ { "", false, NONE, 0, 0 },
/*1c*/ { "", false, NONE, 0, 0 },
/*1d*/ { "", false, NONE, 0, 0 },
/*1e*/ { "", false, NONE, 0, 0 },
/*1f*/ { "nopl", true, SDEP, 0, "nopw" },
};
const struct inst db_inst_0f2x[] = {
/*20*/ { "mov", true, LONG, op2(CR,E), 0 }, /* use E for reg */
/*21*/ { "mov", true, LONG, op2(DR,E), 0 }, /* since mod == 11 */
/*22*/ { "mov", true, LONG, op2(E,CR), 0 },
/*23*/ { "mov", true, LONG, op2(E,DR), 0 },
/*24*/ { "mov", true, LONG, op2(TR,E), 0 },
/*25*/ { "", false, NONE, 0, 0 },
/*26*/ { "mov", true, LONG, op2(E,TR), 0 },
/*27*/ { "", false, NONE, 0, 0 },
/*28*/ { "", false, NONE, 0, 0 },
/*29*/ { "", false, NONE, 0, 0 },
/*2a*/ { "", false, NONE, 0, 0 },
/*2b*/ { "", false, NONE, 0, 0 },
/*2c*/ { "", false, NONE, 0, 0 },
/*2d*/ { "", false, NONE, 0, 0 },
/*2e*/ { "", false, NONE, 0, 0 },
/*2f*/ { "", false, NONE, 0, 0 },
};
const struct inst db_inst_0f3x[] = {
/*30*/ { "wrmsr", false, NONE, 0, 0 },
/*31*/ { "rdtsc", false, NONE, 0, 0 },
/*32*/ { "rdmsr", false, NONE, 0, 0 },
/*33*/ { "rdpmc", false, NONE, 0, 0 },
/*34*/ { "sysenter",false,NONE, 0, 0 },
/*35*/ { "sysexit",false, NONE, 0, 0 },
/*36*/ { "", false, NONE, 0, 0 },
/*37*/ { "getsec",false, NONE, 0, 0 },
/*38*/ { "", false, NONE, 0, 0 },
/*39*/ { "", false, NONE, 0, 0 },
/*3a*/ { "", false, NONE, 0, 0 },
/*3b*/ { "", false, NONE, 0, 0 },
/*3c*/ { "", false, NONE, 0, 0 },
/*3d*/ { "", false, NONE, 0, 0 },
/*3e*/ { "", false, NONE, 0, 0 },
/*3f*/ { "", false, NONE, 0, 0 },
};
const struct inst db_inst_0f4x[] = {
/*40*/ { "cmovo", true, LONG, op2(E,R), 0 },
/*41*/ { "cmovno", true, LONG, op2(E,R), 0 },
/*42*/ { "cmovc", true, LONG, op2(E,R), 0 },
/*43*/ { "cmovnc", true, LONG, op2(E,R), 0 },
/*44*/ { "cmovz", true, LONG, op2(E,R), 0 },
/*45*/ { "cmovnz", true, LONG, op2(E,R), 0 },
/*46*/ { "cmovbe", true, LONG, op2(E,R), 0 },
/*47*/ { "cmovmbe",true, LONG, op2(E,R), 0 },
/*48*/ { "cmovs", true, LONG, op2(E,R), 0 },
/*49*/ { "cmovns", true, LONG, op2(E,R), 0 },
/*4a*/ { "cmovp", true, LONG, op2(E,R), 0 },
/*4b*/ { "cmovnp", true, LONG, op2(E,R), 0 },
/*4c*/ { "cmovl", true, LONG, op2(E,R), 0 },
/*4d*/ { "cmovnl", true, LONG, op2(E,R), 0 },
/*4e*/ { "cmovle", true, LONG, op2(E,R), 0 },
/*4f*/ { "cmovnle",true, LONG, op2(E,R), 0 },
};
const struct inst db_inst_0f8x[] = {
/*80*/ { "jo", false, NONE, op1(Dl), 0 },
/*81*/ { "jno", false, NONE, op1(Dl), 0 },
/*82*/ { "jb", false, NONE, op1(Dl), 0 },
/*83*/ { "jnb", false, NONE, op1(Dl), 0 },
/*84*/ { "jz", false, NONE, op1(Dl), 0 },
/*85*/ { "jnz", false, NONE, op1(Dl), 0 },
/*86*/ { "jbe", false, NONE, op1(Dl), 0 },
/*87*/ { "jnbe", false, NONE, op1(Dl), 0 },
/*88*/ { "js", false, NONE, op1(Dl), 0 },
/*89*/ { "jns", false, NONE, op1(Dl), 0 },
/*8a*/ { "jp", false, NONE, op1(Dl), 0 },
/*8b*/ { "jnp", false, NONE, op1(Dl), 0 },
/*8c*/ { "jl", false, NONE, op1(Dl), 0 },
/*8d*/ { "jnl", false, NONE, op1(Dl), 0 },
/*8e*/ { "jle", false, NONE, op1(Dl), 0 },
/*8f*/ { "jnle", false, NONE, op1(Dl), 0 },
};
const struct inst db_inst_0f9x[] = {
/*90*/ { "seto", true, NONE, op1(Eb), 0 },
/*91*/ { "setno", true, NONE, op1(Eb), 0 },
/*92*/ { "setb", true, NONE, op1(Eb), 0 },
/*93*/ { "setnb", true, NONE, op1(Eb), 0 },
/*94*/ { "setz", true, NONE, op1(Eb), 0 },
/*95*/ { "setnz", true, NONE, op1(Eb), 0 },
/*96*/ { "setbe", true, NONE, op1(Eb), 0 },
/*97*/ { "setnbe",true, NONE, op1(Eb), 0 },
/*98*/ { "sets", true, NONE, op1(Eb), 0 },
/*99*/ { "setns", true, NONE, op1(Eb), 0 },
/*9a*/ { "setp", true, NONE, op1(Eb), 0 },
/*9b*/ { "setnp", true, NONE, op1(Eb), 0 },
/*9c*/ { "setl", true, NONE, op1(Eb), 0 },
/*9d*/ { "setnl", true, NONE, op1(Eb), 0 },
/*9e*/ { "setle", true, NONE, op1(Eb), 0 },
/*9f*/ { "setnle",true, NONE, op1(Eb), 0 },
};
const struct inst db_inst_0fax[] = {
/*a0*/ { "push", false, NONE, op1(Si), 0 },
/*a1*/ { "pop", false, NONE, op1(Si), 0 },
/*a2*/ { "cpuid", false, NONE, 0, 0 },
/*a3*/ { "bt", true, LONG, op2(R,E), 0 },
/*a4*/ { "shld", true, LONG, op3(Ib,R,E), 0 },
/*a5*/ { "shld", true, LONG, op3(CL,R,E), 0 },
/*a6*/ { "", false, NONE, 0, 0 },
/*a7*/ { "", false, NONE, 0, 0 },
/*a8*/ { "push", false, NONE, op1(Si), 0 },
/*a9*/ { "pop", false, NONE, op1(Si), 0 },
/*aa*/ { "rsm", false, NONE, 0, 0 },
/*ab*/ { "bts", true, LONG, op2(R,E), 0 },
/*ac*/ { "shrd", true, LONG, op3(Ib,R,E), 0 },
/*ad*/ { "shrd", true, LONG, op3(CL,R,E), 0 },
/*ae*/ { "fxsave",true, LONG, 0, 0 },
/*af*/ { "imul", true, LONG, op2(E,R), 0 },
};
const struct inst db_inst_0fbx[] = {
/*b0*/ { "cmpxchg",true, BYTE, op2(R, E), 0 },
/*b1*/ { "cmpxchg",true, LONG, op2(R, E), 0 },
/*b2*/ { "lss", true, LONG, op2(E, R), 0 },
/*b3*/ { "btr", true, LONG, op2(R, E), 0 },
/*b4*/ { "lfs", true, LONG, op2(E, R), 0 },
/*b5*/ { "lgs", true, LONG, op2(E, R), 0 },
/*b6*/ { "movzb", true, LONG, op2(E, R), 0 },
/*b7*/ { "movzw", true, LONG, op2(E, R), 0 },
/*b8*/ { "", false, NONE, 0, 0 },
/*b9*/ { "", false, NONE, 0, 0 },
/*ba*/ { "", true, LONG, op2(Ib, E), db_Grp8 },
/*bb*/ { "btc", true, LONG, op2(R, E), 0 },
/*bc*/ { "bsf", true, LONG, op2(E, R), 0 },
/*bd*/ { "bsr", true, LONG, op2(E, R), 0 },
/*be*/ { "movsb", true, LONG, op2(E, R), 0 },
/*bf*/ { "movsw", true, LONG, op2(E, R), 0 },
};
const struct inst db_inst_0fcx[] = {
/*c0*/ { "xadd", true, BYTE, op2(R, E), 0 },
/*c1*/ { "xadd", true, LONG, op2(R, E), 0 },
/*c2*/ { "", false, NONE, 0, 0 },
/*c3*/ { "", false, NONE, 0, 0 },
/*c4*/ { "", false, NONE, 0, 0 },
/*c5*/ { "", false, NONE, 0, 0 },
/*c6*/ { "", false, NONE, 0, 0 },
/*c7*/ { "", true, NONE, op1(E), db_Grp9 },
/*c8*/ { "bswap", false, LONG, op1(Ri), 0 },
/*c9*/ { "bswap", false, LONG, op1(Ri), 0 },
/*ca*/ { "bswap", false, LONG, op1(Ri), 0 },
/*cb*/ { "bswap", false, LONG, op1(Ri), 0 },
/*cc*/ { "bswap", false, LONG, op1(Ri), 0 },
/*cd*/ { "bswap", false, LONG, op1(Ri), 0 },
/*ce*/ { "bswap", false, LONG, op1(Ri), 0 },
/*cf*/ { "bswap", false, LONG, op1(Ri), 0 },
};
const struct inst * const db_inst_0f[] = {
db_inst_0f0x,
db_inst_0f1x,
db_inst_0f2x,
db_inst_0f3x,
db_inst_0f4x,
NULL,
NULL,
NULL,
db_inst_0f8x,
db_inst_0f9x,
db_inst_0fax,
db_inst_0fbx,
db_inst_0fcx,
NULL,
NULL,
NULL
};
const char * const db_Esc92[] = {
"fnop", "", "", "", "", "", "", ""
};
const char * const db_Esc93[] = {
"", "", "", "", "", "", "", ""
};
const char * const db_Esc94[] = {
"fchs", "fabs", "", "", "ftst", "fxam", "", ""
};
const char * const db_Esc95[] = {
"fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz",""
};
const char * const db_Esc96[] = {
"f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp",
"fincstp"
};
const char * const db_Esc97[] = {
"fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos"
};
const char * const db_Esca4[] = {
"", "fucompp","", "", "", "", "", ""
};
const char * const db_Escb4[] = {
"", "", "fnclex","fninit","", "", "", ""
};
const char * const db_Esce3[] = {
"", "fcompp","", "", "", "", "", ""
};
const char * const db_Escf4[] = {
"fnstsw","", "", "", "", "", "", ""
};
const struct finst db_Esc8[] = {
/*0*/ { "fadd", SNGL, op2(STI,ST), 0 },
/*1*/ { "fmul", SNGL, op2(STI,ST), 0 },
/*2*/ { "fcom", SNGL, op2(STI,ST), 0 },
/*3*/ { "fcomp", SNGL, op2(STI,ST), 0 },
/*4*/ { "fsub", SNGL, op2(STI,ST), 0 },
/*5*/ { "fsubr", SNGL, op2(STI,ST), 0 },
/*6*/ { "fdiv", SNGL, op2(STI,ST), 0 },
/*7*/ { "fdivr", SNGL, op2(STI,ST), 0 },
};
const struct finst db_Esc9[] = {
/*0*/ { "fld", SNGL, op1(STI), 0 },
/*1*/ { "", NONE, op1(STI), "fxch" },
/*2*/ { "fst", SNGL, op1(X), db_Esc92 },
/*3*/ { "fstp", SNGL, op1(X), db_Esc93 },
/*4*/ { "fldenv", NONE, op1(X), db_Esc94 },
/*5*/ { "fldcw", NONE, op1(X), db_Esc95 },
/*6*/ { "fnstenv",NONE, op1(X), db_Esc96 },
/*7*/ { "fnstcw", NONE, op1(X), db_Esc97 },
};
const struct finst db_Esca[] = {
/*0*/ { "fiadd", WORD, 0, 0 },
/*1*/ { "fimul", WORD, 0, 0 },
/*2*/ { "ficom", WORD, 0, 0 },
/*3*/ { "ficomp", WORD, 0, 0 },
/*4*/ { "fisub", WORD, op1(X), db_Esca4 },
/*5*/ { "fisubr", WORD, 0, 0 },
/*6*/ { "fidiv", WORD, 0, 0 },
/*7*/ { "fidivr", WORD, 0, 0 }
};
const struct finst db_Escb[] = {
/*0*/ { "fild", WORD, 0, 0 },
/*1*/ { "", NONE, 0, 0 },
/*2*/ { "fist", WORD, 0, 0 },
/*3*/ { "fistp", WORD, 0, 0 },
/*4*/ { "", WORD, op1(X), db_Escb4 },
/*5*/ { "fld", EXTR, 0, 0 },
/*6*/ { "", WORD, 0, 0 },
/*7*/ { "fstp", EXTR, 0, 0 },
};
const struct finst db_Escc[] = {
/*0*/ { "fadd", DBLR, op2(ST,STI), 0 },
/*1*/ { "fmul", DBLR, op2(ST,STI), 0 },
/*2*/ { "fcom", DBLR, op2(ST,STI), 0 },
/*3*/ { "fcomp", DBLR, op2(ST,STI), 0 },
/*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" },
/*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" },
/*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" },
/*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" },
};
const struct finst db_Escd[] = {
/*0*/ { "fld", DBLR, op1(STI), "ffree" },
/*1*/ { "", NONE, 0, 0 },
/*2*/ { "fst", DBLR, op1(STI), 0 },
/*3*/ { "fstp", DBLR, op1(STI), 0 },
/*4*/ { "frstor", NONE, op1(STI), "fucom" },
/*5*/ { "", NONE, op1(STI), "fucomp" },
/*6*/ { "fnsave", NONE, 0, 0 },
/*7*/ { "fnstsw", NONE, 0, 0 },
};
const struct finst db_Esce[] = {
/*0*/ { "fiadd", LONG, op2(ST,STI), "faddp" },
/*1*/ { "fimul", LONG, op2(ST,STI), "fmulp" },
/*2*/ { "ficom", LONG, 0, 0 },
/*3*/ { "ficomp", LONG, op1(X), db_Esce3 },
/*4*/ { "fisub", LONG, op2(ST,STI), "fsubrp" },
/*5*/ { "fisubr", LONG, op2(ST,STI), "fsubp" },
/*6*/ { "fidiv", LONG, op2(ST,STI), "fdivrp" },
/*7*/ { "fidivr", LONG, op2(ST,STI), "fdivp" },
};
const struct finst db_Escf[] = {
/*0*/ { "fild", LONG, 0, 0 },
/*1*/ { "", LONG, 0, 0 },
/*2*/ { "fist", LONG, 0, 0 },
/*3*/ { "fistp", LONG, 0, 0 },
/*4*/ { "fbld", NONE, op1(XA), db_Escf4 },
/*5*/ { "fld", QUAD, 0, 0 },
/*6*/ { "fbstp", NONE, 0, 0 },
/*7*/ { "fstp", QUAD, 0, 0 },
};
const struct finst * const db_Esc_inst[] = {
db_Esc8, db_Esc9, db_Esca, db_Escb,
db_Escc, db_Escd, db_Esce, db_Escf
};
const char * const db_Grp1[] = {
"add",
"or",
"adc",
"sbb",
"and",
"sub",
"xor",
"cmp"
};
const char * const db_Grp2[] = {
"rol",
"ror",
"rcl",
"rcr",
"shl",
"shr",
"shl",
"sar"
};
const struct inst db_Grp3[] = {
{ "test", true, NONE, op2(I,E), 0 },
{ "test", true, NONE, op2(I,E), 0 },
{ "not", true, NONE, op1(E), 0 },
{ "neg", true, NONE, op1(E), 0 },
{ "mul", true, NONE, op2(E,A), 0 },
{ "imul", true, NONE, op2(E,A), 0 },
{ "div", true, NONE, op2(E,A), 0 },
{ "idiv", true, NONE, op2(E,A), 0 },
};
const struct inst db_Grp4[] = {
{ "inc", true, BYTE, op1(E), 0 },
{ "dec", true, BYTE, op1(E), 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 },
{ "", true, NONE, 0, 0 }
};
const struct inst db_Grp5[] = {
{ "inc", true, LONG, op1(E), 0 },
{ "dec", true, LONG, op1(E), 0 },
{ "call", true, NONE, op1(Eind),0 },
{ "lcall", true, NONE, op1(Eind),0 },
{ "jmp", true, NONE, op1(Eind),0 },
{ "ljmp", true, NONE, op1(Eind),0 },
{ "push", true, LONG, op1(E), 0 },
{ "", true, NONE, 0, 0 }
};
const struct inst db_inst_table[256] = {
/*00*/ { "add", true, BYTE, op2(R, E), 0 },
/*01*/ { "add", true, LONG, op2(R, E), 0 },
/*02*/ { "add", true, BYTE, op2(E, R), 0 },
/*03*/ { "add", true, LONG, op2(E, R), 0 },
/*04*/ { "add", false, BYTE, op2(Is, A), 0 },
/*05*/ { "add", false, LONG, op2(Is, A), 0 },
/*06*/ { "push", false, NONE, op1(Si), 0 },
/*07*/ { "pop", false, NONE, op1(Si), 0 },
/*08*/ { "or", true, BYTE, op2(R, E), 0 },
/*09*/ { "or", true, LONG, op2(R, E), 0 },
/*0a*/ { "or", true, BYTE, op2(E, R), 0 },
/*0b*/ { "or", true, LONG, op2(E, R), 0 },
/*0c*/ { "or", false, BYTE, op2(I, A), 0 },
/*0d*/ { "or", false, LONG, op2(I, A), 0 },
/*0e*/ { "push", false, NONE, op1(Si), 0 },
/*0f*/ { "", false, NONE, 0, 0 },
/*10*/ { "adc", true, BYTE, op2(R, E), 0 },
/*11*/ { "adc", true, LONG, op2(R, E), 0 },
/*12*/ { "adc", true, BYTE, op2(E, R), 0 },
/*13*/ { "adc", true, LONG, op2(E, R), 0 },
/*14*/ { "adc", false, BYTE, op2(Is, A), 0 },
/*15*/ { "adc", false, LONG, op2(Is, A), 0 },
/*16*/ { "push", false, NONE, op1(Si), 0 },
/*17*/ { "pop", false, NONE, op1(Si), 0 },
/*18*/ { "sbb", true, BYTE, op2(R, E), 0 },
/*19*/ { "sbb", true, LONG, op2(R, E), 0 },
/*1a*/ { "sbb", true, BYTE, op2(E, R), 0 },
/*1b*/ { "sbb", true, LONG, op2(E, R), 0 },
/*1c*/ { "sbb", false, BYTE, op2(Is, A), 0 },
/*1d*/ { "sbb", false, LONG, op2(Is, A), 0 },
/*1e*/ { "push", false, NONE, op1(Si), 0 },
/*1f*/ { "pop", false, NONE, op1(Si), 0 },
/*20*/ { "and", true, BYTE, op2(R, E), 0 },
/*21*/ { "and", true, LONG, op2(R, E), 0 },
/*22*/ { "and", true, BYTE, op2(E, R), 0 },
/*23*/ { "and", true, LONG, op2(E, R), 0 },
/*24*/ { "and", false, BYTE, op2(I, A), 0 },
/*25*/ { "and", false, LONG, op2(I, A), 0 },
/*26*/ { "", false, NONE, 0, 0 },
/*27*/ { "daa", false, NONE, 0, 0 },
/*28*/ { "sub", true, BYTE, op2(R, E), 0 },
/*29*/ { "sub", true, LONG, op2(R, E), 0 },
/*2a*/ { "sub", true, BYTE, op2(E, R), 0 },
/*2b*/ { "sub", true, LONG, op2(E, R), 0 },
/*2c*/ { "sub", false, BYTE, op2(Is, A), 0 },
/*2d*/ { "sub", false, LONG, op2(Is, A), 0 },
/*2e*/ { "", false, NONE, 0, 0 },
/*2f*/ { "das", false, NONE, 0, 0 },
/*30*/ { "xor", true, BYTE, op2(R, E), 0 },
/*31*/ { "xor", true, LONG, op2(R, E), 0 },
/*32*/ { "xor", true, BYTE, op2(E, R), 0 },
/*33*/ { "xor", true, LONG, op2(E, R), 0 },
/*34*/ { "xor", false, BYTE, op2(I, A), 0 },
/*35*/ { "xor", false, LONG, op2(I, A), 0 },
/*36*/ { "", false, NONE, 0, 0 },
/*37*/ { "aaa", false, NONE, 0, 0 },
/*38*/ { "cmp", true, BYTE, op2(R, E), 0 },
/*39*/ { "cmp", true, LONG, op2(R, E), 0 },
/*3a*/ { "cmp", true, BYTE, op2(E, R), 0 },
/*3b*/ { "cmp", true, LONG, op2(E, R), 0 },
/*3c*/ { "cmp", false, BYTE, op2(Is, A), 0 },
/*3d*/ { "cmp", false, LONG, op2(Is, A), 0 },
/*3e*/ { "", false, NONE, 0, 0 },
/*3f*/ { "aas", false, NONE, 0, 0 },
/*40*/ { "inc", false, LONG, op1(Ri), 0 },
/*41*/ { "inc", false, LONG, op1(Ri), 0 },
/*42*/ { "inc", false, LONG, op1(Ri), 0 },
/*43*/ { "inc", false, LONG, op1(Ri), 0 },
/*44*/ { "inc", false, LONG, op1(Ri), 0 },
/*45*/ { "inc", false, LONG, op1(Ri), 0 },
/*46*/ { "inc", false, LONG, op1(Ri), 0 },
/*47*/ { "inc", false, LONG, op1(Ri), 0 },
/*48*/ { "dec", false, LONG, op1(Ri), 0 },
/*49*/ { "dec", false, LONG, op1(Ri), 0 },
/*4a*/ { "dec", false, LONG, op1(Ri), 0 },
/*4b*/ { "dec", false, LONG, op1(Ri), 0 },
/*4c*/ { "dec", false, LONG, op1(Ri), 0 },
/*4d*/ { "dec", false, LONG, op1(Ri), 0 },
/*4e*/ { "dec", false, LONG, op1(Ri), 0 },
/*4f*/ { "dec", false, LONG, op1(Ri), 0 },
/*50*/ { "push", false, QUAD, op1(Ri), 0 },
/*51*/ { "push", false, QUAD, op1(Ri), 0 },
/*52*/ { "push", false, QUAD, op1(Ri), 0 },
/*53*/ { "push", false, QUAD, op1(Ri), 0 },
/*54*/ { "push", false, QUAD, op1(Ri), 0 },
/*55*/ { "push", false, QUAD, op1(Ri), 0 },
/*56*/ { "push", false, QUAD, op1(Ri), 0 },
/*57*/ { "push", false, QUAD, op1(Ri), 0 },
/*58*/ { "pop", false, QUAD, op1(Ri), 0 },
/*59*/ { "pop", false, QUAD, op1(Ri), 0 },
/*5a*/ { "pop", false, QUAD, op1(Ri), 0 },
/*5b*/ { "pop", false, QUAD, op1(Ri), 0 },
/*5c*/ { "pop", false, QUAD, op1(Ri), 0 },
/*5d*/ { "pop", false, QUAD, op1(Ri), 0 },
/*5e*/ { "pop", false, QUAD, op1(Ri), 0 },
/*5f*/ { "pop", false, QUAD, op1(Ri), 0 },
/*60*/ { "pusha", false, LONG, 0, 0 },
/*61*/ { "popa", false, LONG, 0, 0 },
/*62*/ { "bound", true, LONG, op2(E, R), 0 },
#if 0
/*63*/ { "arpl", true, NONE, op2(Ew,Rw), 0 },/* XXX in 32 bit mode */
#else
/*63*/ { "movslq",true, NONE, op2(Ed, R), 0 },/* aka MOVSXD, in 64bit mode */
#endif
/*64*/ { "", false, NONE, 0, 0 },
/*65*/ { "", false, NONE, 0, 0 },
/*66*/ { "", false, NONE, 0, 0 },
/*67*/ { "", false, NONE, 0, 0 },
/*68*/ { "push", false, LONG, op1(I), 0 },
/*69*/ { "imul", true, LONG, op3(I,E,R), 0 },
/*6a*/ { "push", false, LONG, op1(Ib), 0 },
/*6b*/ { "imul", true, LONG, op3(Ibs,E,R),0 },
/*6c*/ { "ins", false, BYTE, op2(DX, DI), 0 },
/*6d*/ { "ins", false, LONG, op2(DX, DI), 0 },
/*6e*/ { "outs", false, BYTE, op2(SI, DX), 0 },
/*6f*/ { "outs", false, LONG, op2(SI, DX), 0 },
/*70*/ { "jo", false, NONE, op1(Db), 0 },
/*71*/ { "jno", false, NONE, op1(Db), 0 },
/*72*/ { "jb", false, NONE, op1(Db), 0 },
/*73*/ { "jnb", false, NONE, op1(Db), 0 },
/*74*/ { "jz", false, NONE, op1(Db), 0 },
/*75*/ { "jnz", false, NONE, op1(Db), 0 },
/*76*/ { "jbe", false, NONE, op1(Db), 0 },
/*77*/ { "jnbe", false, NONE, op1(Db), 0 },
/*78*/ { "js", false, NONE, op1(Db), 0 },
/*79*/ { "jns", false, NONE, op1(Db), 0 },
/*7a*/ { "jp", false, NONE, op1(Db), 0 },
/*7b*/ { "jnp", false, NONE, op1(Db), 0 },
/*7c*/ { "jl", false, NONE, op1(Db), 0 },
/*7d*/ { "jnl", false, NONE, op1(Db), 0 },
/*7e*/ { "jle", false, NONE, op1(Db), 0 },
/*7f*/ { "jnle", false, NONE, op1(Db), 0 },
/*80*/ { "", true, BYTE, op2(I, E), db_Grp1 },
/*81*/ { "", true, LONG, op2(I, E), db_Grp1 },
/*82*/ { "", true, BYTE, op2(Is,E), db_Grp1 },
/*83*/ { "", true, LONG, op2(Ibs,E), db_Grp1 },
/*84*/ { "test", true, BYTE, op2(R, E), 0 },
/*85*/ { "test", true, LONG, op2(R, E), 0 },
/*86*/ { "xchg", true, BYTE, op2(R, E), 0 },
/*87*/ { "xchg", true, LONG, op2(R, E), 0 },
/*88*/ { "mov", true, BYTE, op2(R, E), 0 },
/*89*/ { "mov", true, LONG, op2(R, E), 0 },
/*8a*/ { "mov", true, BYTE, op2(E, R), 0 },
/*8b*/ { "mov", true, LONG, op2(E, R), 0 },
/*8c*/ { "mov", true, NONE, op2(S, Ew), 0 },
/*8d*/ { "lea", true, LONG, op2(E, R), 0 },
/*8e*/ { "mov", true, NONE, op2(Ew, S), 0 },
/*8f*/ { "pop", true, LONG, op1(E), 0 },
/*90*/ { "nop", false, NONE, 0, 0 },
/*91*/ { "xchg", false, LONG, op2(A, Ri), 0 },
/*92*/ { "xchg", false, LONG, op2(A, Ri), 0 },
/*93*/ { "xchg", false, LONG, op2(A, Ri), 0 },
/*94*/ { "xchg", false, LONG, op2(A, Ri), 0 },
/*95*/ { "xchg", false, LONG, op2(A, Ri), 0 },
/*96*/ { "xchg", false, LONG, op2(A, Ri), 0 },
/*97*/ { "xchg", false, LONG, op2(A, Ri), 0 },
/*98*/ { "cbw", false, SDEP, 0, "cwde" }, /* cbw/cwde */
/*99*/ { "cwd", false, SDEP, 0, "cdq" }, /* cwd/cdq */
/*9a*/ { "lcall", false, NONE, op1(OS), 0 },
/*9b*/ { "wait", false, NONE, 0, 0 },
/*9c*/ { "pushf", false, LONG, 0, 0 },
/*9d*/ { "popf", false, LONG, 0, 0 },
/*9e*/ { "sahf", false, NONE, 0, 0 },
/*9f*/ { "lahf", false, NONE, 0, 0 },
/*a0*/ { "mov", false, BYTE, op2(O, A), 0 },
/*a1*/ { "mov", false, LONG, op2(O, A), 0 },
/*a2*/ { "mov", false, BYTE, op2(A, O), 0 },
/*a3*/ { "mov", false, LONG, op2(A, O), 0 },
/*a4*/ { "movs", false, BYTE, op2(SI,DI), 0 },
/*a5*/ { "movs", false, LONG, op2(SI,DI), 0 },
/*a6*/ { "cmps", false, BYTE, op2(SI,DI), 0 },
/*a7*/ { "cmps", false, LONG, op2(SI,DI), 0 },
/*a8*/ { "test", false, BYTE, op2(I, A), 0 },
/*a9*/ { "test", false, LONG, op2(I, A), 0 },
/*aa*/ { "stos", false, BYTE, op1(DI), 0 },
/*ab*/ { "stos", false, LONG, op1(DI), 0 },
/*ac*/ { "lods", false, BYTE, op1(SI), 0 },
/*ad*/ { "lods", false, LONG, op1(SI), 0 },
/*ae*/ { "scas", false, BYTE, op1(SI), 0 },
/*af*/ { "scas", false, LONG, op1(SI), 0 },
/*b0*/ { "mov", false, BYTE, op2(I, Ri), 0 },
/*b1*/ { "mov", false, BYTE, op2(I, Ri), 0 },
/*b2*/ { "mov", false, BYTE, op2(I, Ri), 0 },
/*b3*/ { "mov", false, BYTE, op2(I, Ri), 0 },
/*b4*/ { "mov", false, BYTE, op2(I, Ri), 0 },
/*b5*/ { "mov", false, BYTE, op2(I, Ri), 0 },
/*b6*/ { "mov", false, BYTE, op2(I, Ri), 0 },
/*b7*/ { "mov", false, BYTE, op2(I, Ri), 0 },
/*b8*/ { "mov", false, LONG, op2(Iq, Ri), 0 },
/*b9*/ { "mov", false, LONG, op2(Iq, Ri), 0 },
/*ba*/ { "mov", false, LONG, op2(Iq, Ri), 0 },
/*bb*/ { "mov", false, LONG, op2(Iq, Ri), 0 },
/*bc*/ { "mov", false, LONG, op2(Iq, Ri), 0 },
/*bd*/ { "mov", false, LONG, op2(Iq, Ri), 0 },
/*be*/ { "mov", false, LONG, op2(Iq, Ri), 0 },
/*bf*/ { "mov", false, LONG, op2(Iq, Ri), 0 },
/*c0*/ { "", true, BYTE, op2(Ib, E), db_Grp2 },
/*c1*/ { "", true, LONG, op2(Ib, E), db_Grp2 },
/*c2*/ { "ret", false, NONE, op1(Iw), 0 },
/*c3*/ { "ret", false, NONE, 0, 0 },
/*c4*/ { "les", true, LONG, op2(E, R), 0 },
/*c5*/ { "lds", true, LONG, op2(E, R), 0 },
/*c6*/ { "mov", true, BYTE, op2(I, E), 0 },
/*c7*/ { "mov", true, LONG, op2(I, E), 0 },
/*c8*/ { "enter", false, NONE, op2(Ib, Iw), 0 },
/*c9*/ { "leave", false, NONE, 0, 0 },
/*ca*/ { "lret", false, NONE, op1(Iw), 0 },
/*cb*/ { "lret", false, NONE, 0, 0 },
/*cc*/ { "int", false, NONE, op1(o3), 0 },
/*cd*/ { "int", false, NONE, op1(Ib), 0 },
/*ce*/ { "into", false, NONE, 0, 0 },
/*cf*/ { "iret", false, NONE, 0, 0 },
/*d0*/ { "", true, BYTE, op2(o1, E), db_Grp2 },
/*d1*/ { "", true, LONG, op2(o1, E), db_Grp2 },
/*d2*/ { "", true, BYTE, op2(CL, E), db_Grp2 },
/*d3*/ { "", true, LONG, op2(CL, E), db_Grp2 },
/*d4*/ { "aam", true, NONE, 0, 0 },
/*d5*/ { "aad", true, NONE, 0, 0 },
/*d6*/ { "", false, NONE, 0, 0 },
/*d7*/ { "xlat", false, BYTE, op1(BX), 0 },
/*d8*/ { "", true, NONE, 0, db_Esc8 },
/*d9*/ { "", true, NONE, 0, db_Esc9 },
/*da*/ { "", true, NONE, 0, db_Esca },
/*db*/ { "", true, NONE, 0, db_Escb },
/*dc*/ { "", true, NONE, 0, db_Escc },
/*dd*/ { "", true, NONE, 0, db_Escd },
/*de*/ { "", true, NONE, 0, db_Esce },
/*df*/ { "", true, NONE, 0, db_Escf },
/*e0*/ { "loopne",false, NONE, op1(Db), 0 },
/*e1*/ { "loope", false, NONE, op1(Db), 0 },
/*e2*/ { "loop", false, NONE, op1(Db), 0 },
/*e3*/ { "jcxz", false, SDEP, op1(Db), "jecxz" },
/*e4*/ { "in", false, BYTE, op2(Ib, A), 0 },
/*e5*/ { "in", false, LONG, op2(Ib, A) , 0 },
/*e6*/ { "out", false, BYTE, op2(A, Ib), 0 },
/*e7*/ { "out", false, LONG, op2(A, Ib) , 0 },
/*e8*/ { "call", false, NONE, op1(Dl), 0 },
/*e9*/ { "jmp", false, NONE, op1(Dl), 0 },
/*ea*/ { "ljmp", false, NONE, op1(OS), 0 },
/*eb*/ { "jmp", false, NONE, op1(Db), 0 },
/*ec*/ { "in", false, BYTE, op2(DX, A), 0 },
/*ed*/ { "in", false, LONG, op2(DX, A) , 0 },
/*ee*/ { "out", false, BYTE, op2(A, DX), 0 },
/*ef*/ { "out", false, LONG, op2(A, DX) , 0 },
/*f0*/ { "", false, NONE, 0, 0 },
/*f1*/ { "", false, NONE, 0, 0 },
/*f2*/ { "", false, NONE, 0, 0 },
/*f3*/ { "", false, NONE, 0, 0 },
/*f4*/ { "hlt", false, NONE, 0, 0 },
/*f5*/ { "cmc", false, NONE, 0, 0 },
/*f6*/ { "", true, BYTE, 0, db_Grp3 },
/*f7*/ { "", true, LONG, 0, db_Grp3 },
/*f8*/ { "clc", false, NONE, 0, 0 },
/*f9*/ { "stc", false, NONE, 0, 0 },
/*fa*/ { "cli", false, NONE, 0, 0 },
/*fb*/ { "sti", false, NONE, 0, 0 },
/*fc*/ { "cld", false, NONE, 0, 0 },
/*fd*/ { "std", false, NONE, 0, 0 },
/*fe*/ { "", true, NONE, 0, db_Grp4 },
/*ff*/ { "", true, NONE, 0, db_Grp5 },
};
const struct inst db_bad_inst =
{ "???", false, NONE, 0, 0 }
;
#define f_mod(rex, byte) ((byte)>>6)
#define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0))
#define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
#define sib_ss(rex, byte) ((byte)>>6)
#define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0))
#define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
struct i_addr {
int is_reg; /* if reg, reg number is in 'disp' */
int disp;
const char * base;
const char * index;
int ss;
};
const char * const db_index_reg_32[8] = {
"%ebx,%esi",
"%ebx,%edi",
"%ebp,%esi",
"%ebp,%edi",
"%esi",
"%edi",
"%ebp",
"%ebx"
};
#define DB_REG_DFLT 0
#define DB_REG_REX 1
const char * const db_reg[2][4][16] = {
{{"%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh",
"%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b"},
{"%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
"%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w"},
{"%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
"%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d"},
{"%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }},
{{"%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil",
"%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b"},
{"%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
"%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
{"%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
"%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
{"%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }}
};
const char * const db_seg_reg[8] = {
"%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", ""
};
/*
* lengths for size attributes
*/
const int db_lengths[] = {
1, /* BYTE */
2, /* WORD */
4, /* LONG */
4, /* QUAD - 64bit immediates are done by Iq */
4, /* SNGL */
8, /* DBLR */
10, /* EXTR */
};
const char * const rex_str[0x10] = {
"rex ", /* 0x40 */
"rex.b ", /* 0x41 */
"rex.x ", /* 0x42 */
"rex.xb ", /* 0x43 */
"rex.r ", /* 0x44 */
"rex.rb ", /* 0x45 */
"rex.rx ", /* 0x46 */
"rex.rxb ", /* 0x47 */
"rex.w ", /* 0x48 */
"rex.wb ", /* 0x49 */
"rex.wx ", /* 0x4a */
"rex.wxb ", /* 0x4b */
"rex.wr ", /* 0x4c */
"rex.wrb ", /* 0x4d */
"rex.wrx ", /* 0x4e */
"rex.wrxb ", /* 0x4f */
};
#define get_value_inc(result, loc, size, is_signed) \
do { \
result = db_get_value((loc), (size), (is_signed)); \
(loc) += (size); \
} while (0)
db_addr_t db_read_address(db_addr_t, int, u_int, int, struct i_addr *);
void db_print_address(const char *, u_int, int, struct i_addr *);
db_addr_t db_disasm_esc(db_addr_t, int, u_int, int, int, const char *);
/*
* Read address at location and return updated location.
*/
db_addr_t
db_read_address(db_addr_t loc, int short_addr, u_int rex, int regmodrm,
struct i_addr *addrp)
/* addrp: out */
{