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authorCyrille Bagard <nocbos@gmail.com>2009-05-11 23:42:48 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2009-05-11 23:42:48 (GMT)
commit96cb6971ee3ca529958b8cb1e8e55a6eb4e60eae (patch)
tree68e49f325de3e93ef186d3e078da8ddc473aedf7 /src/arch/immediate.c
parent80dc0ac97987ad9246bee7c47458a015339453bf (diff)
Reorganized the way the program is built again and added partial support for the JVM.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@63 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch/immediate.c')
-rw-r--r--src/arch/immediate.c256
1 files changed, 256 insertions, 0 deletions
diff --git a/src/arch/immediate.c b/src/arch/immediate.c
new file mode 100644
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--- /dev/null
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@@ -0,0 +1,256 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * immediate.c - opérandes représentant des valeurs numériques
+ *
+ * Copyright (C) 2009 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 "immediate.h"
+
+
+#include <malloc.h>
+#include <stdio.h>
+
+
+#include "operand-int.h"
+
+
+
+/* Définition d'un opérande de valeur numérique (instance) */
+struct _GImmOperand
+{
+ GArchOperand parent; /* Instance parente */
+
+ AsmOperandSize size; /* Taille de l'opérande */
+
+ /**
+ * Note : dans le cas d'une valeur signée,
+ * signed_imm contient la valeur lue/donnée, et
+ * unsigned_imm la valeur humainement lisible (ie. positive).
+ */
+
+ union
+ {
+ uint8_t val8; /* Valeur sur 8 bits */
+ uint16_t val16; /* Valeur sur 16 bits */
+ uint32_t val32; /* Valeur sur 32 bits */
+ uint64_t val64; /* Valeur sur 64 bits */
+
+ } unsigned_imm;
+
+ union
+ {
+ uint8_t val8; /* Valeur sur 8 bits */
+ uint16_t val16; /* Valeur sur 16 bits */
+ uint32_t val32; /* Valeur sur 32 bits */
+ uint64_t val64; /* Valeur sur 64 bits */
+
+ } signed_imm;
+
+};
+
+
+/* Définition d'un opérande de valeur numérique (classe) */
+struct _GImmOperandClass
+{
+ GArchOperandClass parent; /* Classe parente */
+
+};
+
+
+/* Initialise la classe des lignes de descriptions initiales. */
+static void g_imm_operand_class_init(GImmOperandClass *);
+
+/* Initialise la classe des lignes de descriptions initiales. */
+static void g_imm_operand_init(GImmOperand *);
+
+/* Traduit un opérande en version humainement lisible. */
+static char *g_imm_operand_get_text(const GImmOperand *, const exe_format *, AsmSyntax);
+
+
+/* Indique le type défini pour un opérande de valeur numérique. */
+G_DEFINE_TYPE(GImmOperand, g_imm_operand, G_TYPE_ARCH_OPERAND);
+
+
+
+/******************************************************************************
+* *
+* Paramètres : klass = classe à initialiser. *
+* *
+* Description : Initialise la classe des lignes de descriptions initiales. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static void g_imm_operand_class_init(GImmOperandClass *klass)
+{
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : operand = instance à initialiser. *
+* *
+* Description : Initialise la classe des lignes de descriptions initiales. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static void g_imm_operand_init(GImmOperand *operand)
+{
+ GArchOperand *parent; /* Instance parente */
+
+ parent = G_ARCH_OPERAND(operand);
+
+ parent->get_text = (get_operand_text_fc)g_imm_operand_get_text;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : size = taille de l'opérande souhaitée. *
+* data = flux de données à analyser. *
+* pos = position courante dans ce flux. [OUT] *
+* len = taille totale des données à analyser. *
+* endian = ordre des bits dans la source. *
+* *
+* Description : Crée un opérande réprésentant une valeur numérique. *
+* *
+* Retour : Instruction mise en place. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+GArchOperand *g_imm_operand_new_from_data(MemoryDataSize size, const bin_t *data, off_t *pos, off_t len, SourceEndian endian)
+{
+ GImmOperand *result; /* Instruction à retourner */
+
+ result = g_object_new(G_TYPE_IMM_OPERAND, NULL);
+
+ result->size = size;
+
+ switch (size)
+ {
+ case AOS_8_BITS_UNSIGNED:
+ if (!read_u8(&result->unsigned_imm.val8, data, pos, len, endian))
+ goto gionfd_error;
+ break;
+
+
+
+
+ }
+
+ return G_ARCH_OPERAND(result);
+
+ gionfd_error:
+
+ /* TODO : free */
+
+ return NULL;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : operand = opérande à traiter. *
+* format = format du binaire manipulé. *
+* syntax = type de représentation demandée. *
+* *
+* Description : Traduit un opérande en version humainement lisible. *
+* *
+* Retour : Chaîne de caractères à libérer de la mémoire. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static char *g_imm_operand_get_text(const GImmOperand *operand, const exe_format *format, AsmSyntax syntax)
+{
+ char *result; /* Chaîne à retourner */
+
+ result = (char *)calloc(19, sizeof(char));
+
+ switch (syntax)
+ {
+ case ASX_INTEL:
+ switch (operand->size)
+ {
+ case MDS_UNDEFINED:
+ snprintf(result, 19, "$0x???");
+ break;
+ case AOS_8_BITS_UNSIGNED:
+ case AOS_8_BITS_SIGNED:
+ snprintf(result, 19, "0x%hhx", operand->unsigned_imm.val8);
+ break;
+ case AOS_16_BITS_UNSIGNED:
+ case AOS_16_BITS_SIGNED:
+ snprintf(result, 19, "0x%hx", operand->unsigned_imm.val16);
+ break;
+ case AOS_32_BITS_UNSIGNED:
+ case AOS_32_BITS_SIGNED:
+ snprintf(result, 19, "0x%x", operand->unsigned_imm.val32);
+ break;
+ case AOS_64_BITS_UNSIGNED:
+ case AOS_64_BITS_SIGNED:
+ snprintf(result, 19, "0x%llx", operand->unsigned_imm.val64);
+ break;
+ }
+ break;
+
+ case ASX_ATT:
+ switch (operand->size)
+ {
+ case MDS_UNDEFINED:
+ snprintf(result, 19, "$0x???");
+ break;
+ case AOS_8_BITS_UNSIGNED:
+ case AOS_8_BITS_SIGNED:
+ snprintf(result, 19, "$0x%hhx", operand->unsigned_imm.val8);
+ break;
+ case AOS_16_BITS_UNSIGNED:
+ case AOS_16_BITS_SIGNED:
+ snprintf(result, 19, "$0x%hx", operand->unsigned_imm.val16);
+ break;
+ case AOS_32_BITS_UNSIGNED:
+ case AOS_32_BITS_SIGNED:
+ snprintf(result, 19, "$0x%x", operand->unsigned_imm.val32);
+ break;
+ case AOS_64_BITS_UNSIGNED:
+ case AOS_64_BITS_SIGNED:
+ snprintf(result, 19, "$0x%llx", operand->unsigned_imm.val64);
+ break;
+ }
+ break;
+
+ }
+
+ return result;
+
+}