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Diffstat (limited to 'src/arch/dalvik/decomp/if.c')
| -rw-r--r-- | src/arch/dalvik/decomp/if.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/src/arch/dalvik/decomp/if.c b/src/arch/dalvik/decomp/if.c deleted file mode 100644 index 7e17b8d..0000000 --- a/src/arch/dalvik/decomp/if.c +++ /dev/null @@ -1,173 +0,0 @@ - -/* Chrysalide - Outil d'analyse de fichiers binaires - * if.c - décompilation des branchements conditionnels - * - * Copyright (C) 2010-2013 Cyrille Bagard - * - * This file is part of Chrysalide. - * - * Chrysalide 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. - * - * Chrysalide 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 "translate.h" - - -#include "../instruction.h" -#include "../../../decomp/expr/comp.h" -#include "../../../decomp/expr/cond.h" -#include "../../../decomp/expr/immediate.h" -#include "../../../decomp/instr/ite.h" - - - -/****************************************************************************** -* * -* Paramètres : instr = instruction d'origine à convertir. * -* ctx = contexte de la phase de décompilation. * -* * -* Description : Décompile une instruction de branchement conditionnel. * -* * -* Retour : Instruction mise en place ou NULL. * -* * -* Remarques : - * -* * -******************************************************************************/ - -GDecInstruction *dalvik_decomp_instr_if(const GArchInstruction *instr, GDecContext *ctx) -{ - GDecInstruction *result; /* Instruction à retourner */ - CompSignType sign; /* Type d'opération menée */ - vmpa_t addr; /* Adresse de l'instruction */ - GArchOperand *operand; /* Opérande de l'instruction */ - GDecInstruction *op1; /* Premier opérande utilisé */ - GDecInstruction *op2; /* Second opérande utilisé */ - vmpa_t jmp; /* Adresse de saut */ - GDecInstruction *comp; /* Comparaison à restituer */ - GDecInstruction *cond; /* Transformation en condition */ - - switch (g_dalvik_instruction_get_opcode(G_DALVIK_INSTRUCTION(instr))) - { - case DOP_IF_EQ: - sign = CST_EQ; - break; - case DOP_IF_NE: - sign = CST_NE; - break; - case DOP_IF_LT: - sign = CST_LT; - break; - case DOP_IF_GE: - sign = CST_GE; - break; - case DOP_IF_GT: - sign = CST_GT; - break; - case DOP_IF_LE: - sign = CST_LE; - break; - default: - sign = CST_COUNT; - break; - } - - g_arch_instruction_get_location(instr, NULL, NULL, &addr); - - operand = g_arch_instruction_get_operand(instr, 0); - op1 = g_dec_context_convert_register(ctx, operand, false, addr); - - operand = g_arch_instruction_get_operand(instr, 1); - op2 = g_dec_context_convert_register(ctx, operand, false, addr); - - operand = g_arch_instruction_get_operand(instr, 2); - jmp = 0x1234ull;/*g_dec_context_convert_register(ctx, operand, addr);*/ - - comp = g_comp_expression_new(G_DEC_EXPRESSION(op1), sign, G_DEC_EXPRESSION(op2)); - cond = g_cond_expression_new(comp); - result = g_ite_instruction_new(cond, jmp, jmp); - - return result; - -} - - - -/****************************************************************************** -* * -* Paramètres : instr = instruction d'origine à convertir. * -* ctx = contexte de la phase de décompilation. * -* * -* Description : Décompile une instruction de branchement conditionnel. * -* * -* Retour : Instruction mise en place ou NULL. * -* * -* Remarques : - * -* * -******************************************************************************/ - -GDecInstruction *dalvik_decomp_instr_if_zero(const GArchInstruction *instr, GDecContext *ctx) -{ - GDecInstruction *result; /* Instruction à retourner */ - CompSignType sign; /* Type d'opération menée */ - vmpa_t addr; /* Adresse de l'instruction */ - GArchOperand *operand; /* Opérande de l'instruction */ - GDecInstruction *op1; /* Premier opérande utilisé */ - GDecInstruction *op2; /* Second opérande utilisé */ - vmpa_t jmp; /* Adresse de saut */ - GDecInstruction *comp; /* Comparaison à restituer */ - GDecInstruction *cond; /* Transformation en condition */ - - switch (g_dalvik_instruction_get_opcode(G_DALVIK_INSTRUCTION(instr))) - { - case DOP_IF_EQZ: - sign = CST_EQ; - break; - case DOP_IF_NEZ: - sign = CST_NE; - break; - case DOP_IF_LTZ: - sign = CST_LT; - break; - case DOP_IF_GEZ: - sign = CST_GE; - break; - case DOP_IF_GTZ: - sign = CST_GT; - break; - case DOP_IF_LEZ: - sign = CST_LE; - break; - default: - sign = CST_COUNT; - break; - } - - g_arch_instruction_get_location(instr, NULL, NULL, &addr); - - operand = g_arch_instruction_get_operand(instr, 0); - op1 = g_dec_context_convert_register(ctx, operand, false, addr); - - operand = g_imm_operand_new_from_value(MDS_32_BITS_UNSIGNED, (unsigned int)0); - op2 = g_imm_expression_new(G_IMM_OPERAND(operand)); - - operand = g_arch_instruction_get_operand(instr, 2); - jmp = 0x1234ull;/*g_dec_context_convert_register(ctx, operand, addr);*/ - - comp = g_comp_expression_new(G_DEC_EXPRESSION(op1), sign, G_DEC_EXPRESSION(op2)); - cond = g_cond_expression_new(comp); - result = g_ite_instruction_new(cond, jmp, jmp); - - return result; - -} |