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authorCyrille Bagard <nocbos@gmail.com>2010-12-12 00:16:28 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2010-12-12 00:16:28 (GMT)
commitd9fdfcf887a7a596a68db2500bb5e4d0b692abb6 (patch)
tree55d8a973b421ed832007a3757c0a61621a0bef44 /src/arch
parent544dfe87adfe15c8588ccffea712672e1b7c4179 (diff)
Created an instruction for the 'If Then Else' blocks.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@201 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/dalvik/Makefile.am1
-rw-r--r--src/arch/dalvik/dop_array.c2
-rw-r--r--src/arch/dalvik/dop_if.c95
-rw-r--r--src/arch/dalvik/instruction.c12
-rw-r--r--src/arch/dalvik/translate.h3
5 files changed, 106 insertions, 7 deletions
diff --git a/src/arch/dalvik/Makefile.am b/src/arch/dalvik/Makefile.am
index 3c58a0e..fbd041d 100644
--- a/src/arch/dalvik/Makefile.am
+++ b/src/arch/dalvik/Makefile.am
@@ -8,6 +8,7 @@ libarchdalvik_la_SOURCES = \
dop_arithm.c \
dop_array.c \
dop_const.c \
+ dop_if.c \
dop_invoke.c \
dop_ret.c \
op_add.c \
diff --git a/src/arch/dalvik/dop_array.c b/src/arch/dalvik/dop_array.c
index fa9f94f..94ca09a 100644
--- a/src/arch/dalvik/dop_array.c
+++ b/src/arch/dalvik/dop_array.c
@@ -34,7 +34,7 @@
* Paramètres : instr = instruction d'origine à convertir. *
* ctx = contexte de la phase de décompilation. *
* *
-* Description : Décompile une instruction de type 'array-length'. *
+* Description : Décompile une instruction de type 'array-length'. *
* *
* Retour : Instruction mise en place ou NULL. *
* *
diff --git a/src/arch/dalvik/dop_if.c b/src/arch/dalvik/dop_if.c
new file mode 100644
index 0000000..3a9d8dd
--- /dev/null
+++ b/src/arch/dalvik/dop_if.c
@@ -0,0 +1,95 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * dop_array.c - décompilation des branchements conditionnels
+ *
+ * Copyright (C) 2010 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 "translate.h"
+
+
+#include "instruction.h"
+#include "../../decomp/expr/cond.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 comparaison d'opérandes. *
+* *
+* 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 */
+ GArchOperand *operand; /* Opérande de l'instruction */
+ GDecInstruction *op1; /* Premier opérande utilisé */
+ GDecInstruction *op2; /* Second opérande utilisé */
+ vmpa_t jmp; /* Adresse de saut */
+ GDecInstruction *cond; /* Comparaison à restituer */
+
+ 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;
+ }
+
+ operand = g_arch_instruction_get_operand(instr, 0);
+ op1 = g_dec_context_convert_register(ctx, operand);
+
+ operand = g_arch_instruction_get_operand(instr, 1);
+ op2 = g_dec_context_convert_register(ctx, operand);
+
+ operand = g_arch_instruction_get_operand(instr, 2);
+ jmp = 0x1234ull;/*g_dec_context_convert_register(ctx, operand);*/
+
+ cond = g_cond_expression_new(G_DEC_EXPRESSION(op1), sign, G_DEC_EXPRESSION(op2));
+ result = g_ite_instruction_new(G_DEC_EXPRESSION(cond), jmp, jmp);
+
+ return result;
+
+}
diff --git a/src/arch/dalvik/instruction.c b/src/arch/dalvik/instruction.c
index d23bbe5..051bbe2 100644
--- a/src/arch/dalvik/instruction.c
+++ b/src/arch/dalvik/instruction.c
@@ -110,12 +110,12 @@ static dalvik_instruction _instructions[DOP_COUNT] = {
[DOP_CMPL_DOUBLE] = { 0x2f, "cmpl-double" },
[DOP_CMPG_DOUBLE] = { 0x30, "cmpg-double" },
[DOP_CMP_LONG] = { 0x31, "cmp-long" },
- [DOP_IF_EQ] = { 0x32, "if-eq" },
- [DOP_IF_NE] = { 0x33, "if-ne" },
- [DOP_IF_LT] = { 0x34, "if-lt" },
- [DOP_IF_GE] = { 0x35, "if-ge" },
- [DOP_IF_GT] = { 0x36, "if-gt" },
- [DOP_IF_LE] = { 0x37, "if-le" },
+ [DOP_IF_EQ] = { 0x32, "if-eq", dalvik_decomp_instr_if },
+ [DOP_IF_NE] = { 0x33, "if-ne", dalvik_decomp_instr_if },
+ [DOP_IF_LT] = { 0x34, "if-lt", dalvik_decomp_instr_if },
+ [DOP_IF_GE] = { 0x35, "if-ge", dalvik_decomp_instr_if },
+ [DOP_IF_GT] = { 0x36, "if-gt", dalvik_decomp_instr_if },
+ [DOP_IF_LE] = { 0x37, "if-le", dalvik_decomp_instr_if },
[DOP_IF_EQZ] = { 0x38, "if-eqz" },
[DOP_IF_NEZ] = { 0x39, "if-nez" },
[DOP_IF_LTZ] = { 0x3a, "if-ltz" },
diff --git a/src/arch/dalvik/translate.h b/src/arch/dalvik/translate.h
index 350dff8..c708aaf 100644
--- a/src/arch/dalvik/translate.h
+++ b/src/arch/dalvik/translate.h
@@ -60,6 +60,9 @@ GDecInstruction *dalvik_decomp_instr_arithm_2addr(const GArchInstruction *, GDec
/* Décompile une instruction de type 'opérations arithmétiques'. */
GDecInstruction *dalvik_decomp_instr_arithm_lit(const GArchInstruction *, GDecContext *);
+/* Décompile une instruction de comparaison d'opérandes. */
+GDecInstruction *dalvik_decomp_instr_if(const GArchInstruction *, GDecContext *);
+
#endif /* _ANALYSIS_DECOMP_RTL_DALVIK_TRANSLATE_H */