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authorCyrille Bagard <nocbos@gmail.com>2013-06-30 13:01:38 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2013-06-30 13:01:38 (GMT)
commite5314b83cf2521f4a1fee5d3cbb5011d7ac7bff7 (patch)
tree3af6d5b430d3a07753e273e9ddb1ff656e706661 /src/arch/arm/v456/register.c
parent0f3bbcb376ee4f76142ac4ddf729403fecac2641 (diff)
Provided first basic support for a few ARM instructions.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@354 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch/arm/v456/register.c')
-rw-r--r--src/arch/arm/v456/register.c251
1 files changed, 251 insertions, 0 deletions
diff --git a/src/arch/arm/v456/register.c b/src/arch/arm/v456/register.c
new file mode 100644
index 0000000..7e101a3
--- /dev/null
+++ b/src/arch/arm/v456/register.c
@@ -0,0 +1,251 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * registers.c - aides auxiliaires relatives aux registres ARM v4/5/6
+ *
+ * Copyright (C) 2013 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 "register.h"
+
+
+#include <stdio.h>
+
+
+#include "../../register-int.h"
+
+
+
+/* Représentation d'un registre ARM v4/5/6 (instance) */
+struct _GArmV456Register
+{
+ GArchRegister parent; /* Instance parente */
+
+ uint8_t index; /* Indice du registre */
+
+};
+
+
+/* Représentation d'un registre ARM v4/5/6 (classe) */
+struct _GArmV456RegisterClass
+{
+ GArchRegisterClass parent; /* Classe parente */
+
+};
+
+
+#define MAX_REGNAME_LEN 8
+
+
+/* Initialise la classe des registres ARM v4/5/6. */
+static void g_armv456_register_class_init(GArmV456RegisterClass *);
+
+/* Initialise une instance de registre ARM v4/5/6. */
+static void g_armv456_register_init(GArmV456Register *);
+
+/* Produit une empreinte à partir d'un registre. */
+static guint g_armv456_register_hash(const GArmV456Register *);
+
+
+
+/* Indique le type défini pour une représentation d'un registre ARM v4/5/6. */
+G_DEFINE_TYPE(GArmV456Register, g_armv456_register, G_TYPE_ARCH_REGISTER);
+
+
+/******************************************************************************
+* *
+* Paramètres : klass = classe à initialiser. *
+* *
+* Description : Initialise la classe des registres ARM v4/5/6. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static void g_armv456_register_class_init(GArmV456RegisterClass *klass)
+{
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : reg = instance à initialiser. *
+* *
+* Description : Initialise une instance de registre ARM v4/5/6. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static void g_armv456_register_init(GArmV456Register *reg)
+{
+ GArchRegister *base; /* Version basique */
+
+ base = G_ARCH_REGISTER(reg);
+
+ base->hash = (reg_hash_fc)g_armv456_register_hash;
+ base->compare = (reg_compare_fc)g_armv456_register_compare;
+ base->print = (reg_print_fc)g_armv456_register_print;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : index = indice du registre correspondant. *
+* *
+* Description : Crée une réprésentation de registre ARM v4/5/6. *
+* *
+* Retour : Adresse de la structure mise en place. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+GArmV456Register *g_armv456_register_new(uint8_t index)
+{
+ GArmV456Register *result; /* Structure à retourner */
+
+ result = g_object_new(G_TYPE_ARMV456_REGISTER, NULL);
+
+ result->index = index;
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : reg = registre à consulter. *
+* *
+* Description : Fournit l'indice d'un registre ARM v4/5/6. *
+* *
+* Retour : Inditifiant représentant le registre. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+uint16_t g_armv456_register_get_index(const GArmV456Register *reg)
+{
+ return reg->index;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : reg = opérande à consulter pour le calcul. *
+* *
+* Description : Produit une empreinte à partir d'un registre. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static guint g_armv456_register_hash(const GArmV456Register *reg)
+{
+ return reg->index;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : a = premier opérande à consulter. *
+* b = second opérande à consulter. *
+* *
+* Description : Compare un registre avec un autre. *
+* *
+* Retour : Bilan de la comparaison. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+int g_armv456_register_compare(const GArmV456Register *a, const GArmV456Register *b)
+{
+ int result; /* Bilan à retourner */
+
+ if (a->index < b->index)
+ result = -1;
+ else if (a->index > b->index)
+ result = 1;
+ else
+ result = 0;
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : reg = registre à transcrire. *
+* line = ligne tampon où imprimer l'opérande donné. *
+* syntax = type de représentation demandée. *
+* *
+* Description : Traduit un registre en version humainement lisible. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+void g_armv456_register_print(const GArmV456Register *reg, GBufferLine *line, AsmSyntax syntax)
+{
+ char key[MAX_REGNAME_LEN]; /* Mot clef principal */
+ size_t klen; /* Taille de ce mot clef */
+
+ switch (reg->index)
+ {
+ case 0 ... 12:
+ klen = snprintf(key, MAX_REGNAME_LEN, "r%hhu", reg->index);
+ break;
+ case 13:
+ klen = snprintf(key, MAX_REGNAME_LEN, "sp");
+ break;
+ case 14:
+ klen = snprintf(key, MAX_REGNAME_LEN, "lr");
+ break;
+ case 15:
+ klen = snprintf(key, MAX_REGNAME_LEN, "pc");
+ break;
+ case 16:
+ klen = snprintf(key, MAX_REGNAME_LEN, "cpsr");
+ break;
+ case 17:
+ klen = snprintf(key, MAX_REGNAME_LEN, "spsr");
+ break;
+ default:
+ klen = snprintf(key, MAX_REGNAME_LEN, "r??");
+ break;
+ }
+
+ g_buffer_line_insert_text(line, BLC_ASSEMBLY, key, klen, RTT_REGISTER);
+
+}