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|
/* OpenIDA - Outil d'analyse de fichiers binaires
* processor.c - gestion de l'architecture x86
*
* Copyright (C) 2008 Cyrille Bagard
*
* This file is part of OpenIDA.
*
* OpenIDA is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* OpenIDA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
#include "processor.h"
#include "../processor-int.h"
#include "opcodes.h"
/* Définition du processeur de la x86 (instance) */
struct _GX86Processor
{
GArchProcessor parent; /* Instance parente */
};
/* Définition du processeur de la x86 (classe) */
struct _GX86ProcessorClass
{
GArchProcessorClass parent; /* Classe parente */
};
/* Initialise la classe des lignes de descriptions initiales. */
static void g_x86_processor_class_init(GX86ProcessorClass *);
/* Initialise la classe des lignes de descriptions initiales. */
static void g_x86_processor_init(GX86Processor *);
/* Décode une instruction dans un flux de données. */
static GArchInstruction *g_x86_processor_decode_instruction(const GX86Processor *, const bin_t *, off_t *, off_t, vmpa_t);
/* Indique le type défini par la GLib pour le processeur x86. */
G_DEFINE_TYPE(GX86Processor, g_x86_processor, G_TYPE_ARCH_PROCESSOR);
/******************************************************************************
* *
* Paramètres : klass = classe à initialiser. *
* *
* Description : Initialise la classe des lignes de descriptions initiales. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void g_x86_processor_class_init(GX86ProcessorClass *klass)
{
}
/******************************************************************************
* *
* Paramètres : proc = instance à initialiser. *
* *
* Description : Initialise la classe des lignes de descriptions initiales. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static void g_x86_processor_init(GX86Processor *proc)
{
GArchProcessor *parent; /* Instance parente */
parent = G_ARCH_PROCESSOR(proc);
parent->endianness = SRE_BIG;
parent->memsize = MDS_32_BITS;
parent->decode = (decode_instruction_fc)g_x86_processor_decode_instruction;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Crée le support de l'architecture x86. *
* *
* Retour : Architecture mise en place. *
* *
* Remarques : - *
* *
******************************************************************************/
GArchProcessor *g_x86_processor_new(void)
{
GArchProcessor *result; /* Structure à retourner */
result = g_object_new(G_TYPE_X86_PROCESSOR, NULL);
return result;
}
/******************************************************************************
* *
* Paramètres : proc = architecture visée par la consultation. *
* prefix = bascule à consulter. *
* *
* Description : Fournit la taille supplantée des opérandes pour x86. *
* *
* Retour : Taille d'opérande (16 ou 32 bits). *
* *
* Remarques : - *
* *
******************************************************************************/
AsmOperandSize g_x86_processor_get_operand_size(const GX86Processor *proc, X86Prefix prefix)
{
AsmOperandSize result; /* Taille à renvoyer */
/* FIXME */
if (prefix & XPX_OPERAND_SIZE_OVERRIDE)
result = (AOS_32_BITS/*proc->operand_size*/ == AOS_32_BITS ? AOS_16_BITS : AOS_32_BITS);
else result = AOS_32_BITS/*proc->operand_size*/;
return result;
}
/******************************************************************************
* *
* Paramètres : proc = architecture visée par la procédure. *
* data = flux de données à analyser. *
* pos = position courante dans ce flux. [OUT] *
* len = taille totale des données à analyser. *
* addr = adresse virtuelle de l'instruction. *
* *
* Description : Décode une instruction dans un flux de données. *
* *
* Retour : Instruction mise en place. *
* *
* Remarques : - *
* *
******************************************************************************/
static GArchInstruction *g_x86_processor_decode_instruction(const GX86Processor *proc, const bin_t *data, off_t *pos, off_t len, vmpa_t addr)
{
GArchInstruction *result; /* Instruction à renvoyer */
X86Prefix prefix; /* Préfixes avec l'instr. */
bool care; /* Traitement des opcodes */
X86Opcodes id; /* Identifiant d'instruction */
id = x86_guess_next_instruction(data, *pos, len, &prefix, &care);
if (prefix & XPX_TWO_BYTES)
{
(*pos)++;
addr++;
}
if (prefix & XPX_OPERAND_SIZE_OVERRIDE) (*pos)++;
if (id != XOP_COUNT && !care) (*pos)++;
switch (id)
{
case XOP_ADD_RM8_R8:
result = x86_read_instr_add_rm8_r8(data, pos, len, addr, prefix, proc);
break;
case XOP_ADD_RM1632_R1632:
result = x86_read_instr_add_rm1632_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_ADD_R8_RM8:
result = x86_read_instr_add_r8_rm8(data, pos, len, addr, prefix, proc);
break;
case XOP_ADD_R1632_RM1632:
result = x86_read_instr_add_r1632_rm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_ADD_AL_IMM8:
result = x86_read_instr_add_al_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_ADD_E_AX_IMM1632:
result = x86_read_instr_add_e_ax_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_OR_R8_RM8:
result = x86_read_instr_or_r8_rm8(data, pos, len, addr, prefix, proc);
break;
case XOP_OR_AL_IMM8:
result = x86_read_instr_or_al_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_JLE_REL1632:
result = x86_read_instr_jle_rel1632(data, pos, len, addr, prefix, proc);
break;
case XOP_MOVZX_R1632_RM8:
result = x86_read_instr_movzx_r1632_rm8(data, pos, len, addr, prefix, proc);
break;
case XOP_MOVSX_R1632_RM8:
result = x86_read_instr_movsx_r1632_rm8(data, pos, len, addr, prefix, proc);
break;
case XOP_ADC_RM8_R8:
result = x86_read_instr_adc_rm8_r8(data, pos, len, addr, prefix, proc);
break;
case XOP_AND_RM8_R8:
result = x86_read_instr_and_rm8_r8(data, pos, len, addr, prefix, proc);
break;
case XOP_SUB_RM1632_R1632:
result = x86_read_instr_sub_rm1632_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_SUB_R8_RM8:
result = x86_read_instr_sub_r8_rm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SUB_AL_IMM8:
result = x86_read_instr_sub_al_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SUB_E_AX_IMM1632:
result = x86_read_instr_sub_e_ax_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_RM8_R8:
result = x86_read_instr_xor_rm8_r8(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_RM1632_R1632:
result = x86_read_instr_xor_rm1632_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_R8_RM8:
result = x86_read_instr_xor_r8_rm8(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_R1632_RM1632:
result = x86_read_instr_xor_r1632_rm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_AL_IMM8:
result = x86_read_instr_xor_al_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_E_AX_IMM1632:
result = x86_read_instr_xor_e_ax_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_CMP_RM1632_R1632:
result = x86_read_instr_cmp_rm1632_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_INC_E_AX:
case XOP_INC_E_CX:
case XOP_INC_E_DX:
case XOP_INC_E_BX:
case XOP_INC_E_SP:
case XOP_INC_E_BP:
case XOP_INC_E_SI:
case XOP_INC_E_DI:
result = x86_read_instr_inc_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_DEC_E_AX:
case XOP_DEC_E_CX:
case XOP_DEC_E_DX:
case XOP_DEC_E_BX:
case XOP_DEC_E_SP:
case XOP_DEC_E_BP:
case XOP_DEC_E_SI:
case XOP_DEC_E_DI:
result = x86_read_instr_dec_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_PUSH_E_AX:
case XOP_PUSH_E_CX:
case XOP_PUSH_E_DX:
case XOP_PUSH_E_BX:
case XOP_PUSH_E_SP:
case XOP_PUSH_E_BP:
case XOP_PUSH_E_SI:
case XOP_PUSH_E_DI:
result = x86_read_instr_push_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_POP_E_AX:
case XOP_POP_E_CX:
case XOP_POP_E_DX:
case XOP_POP_E_BX:
case XOP_POP_E_SP:
case XOP_POP_E_BP:
case XOP_POP_E_SI:
case XOP_POP_E_DI:
result = x86_read_instr_pop_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_PUSH_IMM1632:
result = x86_read_instr_push_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_IMUL_RM1632_IMM8:
result = x86_read_instr_imul_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_JO_REL8:
result = x86_read_instr_jo_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JNO_REL8:
result = x86_read_instr_jno_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JB_REL8:
result = x86_read_instr_jb_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JNB_REL8:
result = x86_read_instr_jnb_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JE_REL8:
result = x86_read_instr_je_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JNE_REL8:
result = x86_read_instr_jne_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JNA_REL8:
result = x86_read_instr_jna_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JA_REL8:
result = x86_read_instr_ja_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JS_REL8:
result = x86_read_instr_js_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JNS_REL8:
result = x86_read_instr_jns_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JP_REL8:
result = x86_read_instr_jp_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JNP_REL8:
result = x86_read_instr_jnp_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JL_REL8:
result = x86_read_instr_jl_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JNL_REL8:
result = x86_read_instr_jnl_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JNG_REL8:
result = x86_read_instr_jng_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_JG_REL8:
result = x86_read_instr_jg_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_ADD_RM8_IMM8:
result = x86_read_instr_add_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_OR_RM8_IMM8:
result = x86_read_instr_or_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_ADC_RM8_IMM8:
result = x86_read_instr_adc_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SBB_RM8_IMM8:
result = x86_read_instr_sbb_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_AND_RM8_IMM8:
result = x86_read_instr_and_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SUB_RM8_IMM8:
result = x86_read_instr_sub_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_RM8_IMM8:
result = x86_read_instr_xor_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_CMP_RM8_IMM8:
result = x86_read_instr_cmp_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_ADD_RM1632_IMM1632:
result = x86_read_instr_add_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_OR_RM1632_IMM1632:
result = x86_read_instr_or_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_ADC_RM1632_IMM1632:
result = x86_read_instr_adc_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_SBB_RM1632_IMM1632:
result = x86_read_instr_sbb_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_AND_RM1632_IMM1632:
result = x86_read_instr_and_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_SUB_RM1632_IMM1632:
result = x86_read_instr_sub_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_RM1632_IMM1632:
result = x86_read_instr_xor_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_CMP_RM1632_IMM1632:
result = x86_read_instr_cmp_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_ADD_RM1632_IMM8:
result = x86_read_instr_add_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_OR_RM1632_IMM8:
result = x86_read_instr_or_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_ADC_RM1632_IMM8:
result = x86_read_instr_adc_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SBB_RM1632_IMM8:
result = x86_read_instr_sbb_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_AND_RM1632_IMM8:
result = x86_read_instr_and_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SUB_RM1632_IMM8:
result = x86_read_instr_sub_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_XOR_RM1632_IMM8:
result = x86_read_instr_xor_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_CMP_RM1632_IMM8:
result = x86_read_instr_cmp_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_TEST_RM8_R8:
result = x86_read_instr_test_rm8_r8(data, pos, len, addr, prefix, proc);
break;
case XOP_TEST_RM1632_R1632:
result = x86_read_instr_test_rm1632_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_RM8_R8:
result = x86_read_instr_mov_rm8_r8(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_RM1632_R1632:
result = x86_read_instr_mov_rm1632_r1632(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_R1632_RM1632:
result = x86_read_instr_mov_r1632_rm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_LEA_R1632_M:
result = x86_read_instr_lea_r1632_m(data, pos, len, addr, prefix, proc);
break;
case XOP_NOP:
result = x86_read_instr_nop(data, pos, len, addr, prefix, proc);
break;
case XOP_XCHG_R1632_E_AX:
case XOP_XCHG_R1632_E_CX:
case XOP_XCHG_R1632_E_DX:
case XOP_XCHG_R1632_E_BX:
case XOP_XCHG_R1632_E_SP:
case XOP_XCHG_R1632_E_BP:
case XOP_XCHG_R1632_E_SI:
case XOP_XCHG_R1632_E_DI:
result = x86_read_instr_xchg_r1632_e_ax(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_AL_MOFFS8:
result = x86_read_instr_mov_al_moffs8(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_E_AX_MOFFS1632:
result = x86_read_instr_mov_e_ax_moffs1632(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_MOFFS8_AL:
result = x86_read_instr_mov_moffs8_al(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_MOFFS1632_E_AX:
result = x86_read_instr_mov_moffs1632_e_ax(data, pos, len, addr, prefix, proc);
break;
case XOP_TEST_AL_IMM8:
result = x86_read_instr_test_al_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_TEST_E_AX_IMM1632:
result = x86_read_instr_test_e_ax_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_SCAS_AL_M8:
result = x86_read_instr_scas_al_m8(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_AL_IMM8:
case XOP_MOV_CL_IMM8:
case XOP_MOV_DL_IMM8:
case XOP_MOV_BL_IMM8:
case XOP_MOV_AH_IMM8:
case XOP_MOV_CH_IMM8:
case XOP_MOV_DH_IMM8:
case XOP_MOV_BH_IMM8:
result = x86_read_instr_mov_r8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_E_AX_IMM1632:
case XOP_MOV_E_CX_IMM1632:
case XOP_MOV_E_DX_IMM1632:
case XOP_MOV_E_BX_IMM1632:
case XOP_MOV_E_SP_IMM1632:
case XOP_MOV_E_BP_IMM1632:
case XOP_MOV_E_SI_IMM1632:
case XOP_MOV_E_DI_IMM1632:
result = x86_read_instr_mov_r1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_ROL_RM1632_IMM8:
result = x86_read_instr_rol_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_ROR_RM1632_IMM8:
result = x86_read_instr_ror_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_RCL_RM1632_IMM8:
result = x86_read_instr_rcl_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_RCR_RM1632_IMM8:
result = x86_read_instr_rcr_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SHL_RM1632_IMM8:
result = x86_read_instr_shl_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SHR_RM1632_IMM8:
result = x86_read_instr_shr_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SAL_RM1632_IMM8:
result = x86_read_instr_sal_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SAR_RM1632_IMM8:
result = x86_read_instr_sar_rm1632_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_RET:
result = x86_read_instr_ret(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_RM8_IMM8:
result = x86_read_instr_mov_rm8_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_MOV_RM1632_IMM1632:
result = x86_read_instr_mov_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_LEAVE:
result = x86_read_instr_leave(data, pos, len, addr, prefix, proc);
break;
case XOP_INT_3:
result = x86_read_instr_int_3(data, pos, len, addr, prefix, proc);
break;
case XOP_INT:
result = x86_read_instr_int_imm8(data, pos, len, addr, prefix, proc);
break;
case XOP_SHL_RM1632_CL:
result = x86_read_instr_shl_rm1632_cl(data, pos, len, addr, prefix, proc);
break;
case XOP_CALL_REL1632:
result = x86_read_instr_call_rel1632(data, pos, len, addr, prefix, proc);
break;
case XOP_JMP_REL1632:
result = x86_read_instr_jmp_rel1632(data, pos, len, addr, prefix, proc);
break;
case XOP_JMP_REL8:
result = x86_read_instr_jmp_rel8(data, pos, len, addr, prefix, proc);
break;
case XOP_HLT:
result = x86_read_instr_hlt(data, pos, len, addr, prefix, proc);
break;
case XOP_TEST_RM1632_IMM1632:
case XOP_TEST_RM1632_IMM1632_BIS:
result = x86_read_instr_test_rm1632_imm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_NOT_RM1632:
result = x86_read_instr_not_rm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_IMUL_RM1632:
result = x86_read_instr_imul_rm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_CLD:
result = x86_read_instr_cld(data, pos, len, addr, prefix, proc);
break;
case XOP_CALL_RM1632:
result = x86_read_instr_call_rm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_JMP_RM1632:
result = x86_read_instr_jmp_rm1632(data, pos, len, addr, prefix, proc);
break;
case XOP_PUSH_RM1632:
result = x86_read_instr_push_rm1632(data, pos, len, addr, prefix, proc);
break;
default:
result = NULL;
break;
}
if (result != NULL)
g_x86_instruction_set_prefixes(G_X86_INSTRUCTION(result), prefix);
return result;
}
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