diff options
author | Cyrille Bagard <nocbos@gmail.com> | 2018-05-19 10:28:27 (GMT) |
---|---|---|
committer | Cyrille Bagard <nocbos@gmail.com> | 2018-05-19 10:28:27 (GMT) |
commit | 5e6f3a42a2f57c563f34e5ea4d9c377d8618e871 (patch) | |
tree | 9b245999585accb100a09df44a0f254ece4d9209 /plugins/arm/v7/operands | |
parent | d52e16c97aa88ecf6a3643ef454e1aa857e0e7dd (diff) |
Added support for a few extra ARMv7 instructions.
Diffstat (limited to 'plugins/arm/v7/operands')
-rw-r--r-- | plugins/arm/v7/operands/Makefile.am | 4 | ||||
-rw-r--r-- | plugins/arm/v7/operands/estate.c | 2 | ||||
-rw-r--r-- | plugins/arm/v7/operands/it.c | 402 | ||||
-rw-r--r-- | plugins/arm/v7/operands/it.h | 67 | ||||
-rw-r--r-- | plugins/arm/v7/operands/register.c | 95 | ||||
-rw-r--r-- | plugins/arm/v7/operands/register.h | 6 | ||||
-rw-r--r-- | plugins/arm/v7/operands/specreg.c | 378 | ||||
-rw-r--r-- | plugins/arm/v7/operands/specreg.h | 79 |
8 files changed, 1031 insertions, 2 deletions
diff --git a/plugins/arm/v7/operands/Makefile.am b/plugins/arm/v7/operands/Makefile.am index 7ba6d0a..41a809e 100644 --- a/plugins/arm/v7/operands/Makefile.am +++ b/plugins/arm/v7/operands/Makefile.am @@ -4,13 +4,15 @@ noinst_LTLIBRARIES = libarmv7operands.la libarmv7operands_la_SOURCES = \ coproc.h coproc.c \ estate.h estate.c \ + it.h it.c \ limitation.h limitation.c \ maccess.h maccess.c \ offset.h offset.c \ register.h register.c \ reglist.h reglist.c \ rotation.h rotation.c \ - shift.h shift.c + shift.h shift.c \ + specreg.h specreg.c libarmv7operands_la_LIBADD = diff --git a/plugins/arm/v7/operands/estate.c b/plugins/arm/v7/operands/estate.c index 472ac2b..8460375 100644 --- a/plugins/arm/v7/operands/estate.c +++ b/plugins/arm/v7/operands/estate.c @@ -1,6 +1,6 @@ /* Chrysalide - Outil d'analyse de fichiers binaires - * endian.c - décalages de valeurs + * estate.c - décalages de valeurs * * Copyright (C) 2016-2017 Cyrille Bagard * diff --git a/plugins/arm/v7/operands/it.c b/plugins/arm/v7/operands/it.c new file mode 100644 index 0000000..f8232d1 --- /dev/null +++ b/plugins/arm/v7/operands/it.c @@ -0,0 +1,402 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * it.c - manipulation des informations de l'instruction TI + * + * Copyright (C) 2018 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "it.h" + + +#include <assert.h> + + +#include <arch/operand-int.h> +#include <common/sort.h> + + + +/* Définition d'un opérande organisant l'application d'une instruction IT (instance) */ +struct _GArmV7ITCondOperand +{ + GArchOperand parent; /* Instance parente */ + + ArmCondCode firstcond; /* Condition première */ + uint8_t mask; /* Masque de l'interprétation */ + +}; + + +/* Définition d'un opérande organisant l'application d'une instruction IT (classe) */ +struct _GArmV7ITCondOperandClass +{ + GArchOperandClass parent; /* Classe parente */ + +}; + + +/* Initialise la classe des conditions d'application d'IT. */ +static void g_armv7_itcond_operand_class_init(GArmV7ITCondOperandClass *); + +/* Initialise une instance de conditions d'application d'IT. */ +static void g_armv7_itcond_operand_init(GArmV7ITCondOperand *); + +/* Supprime toutes les références externes. */ +static void g_armv7_itcond_operand_dispose(GArmV7ITCondOperand *); + +/* Procède à la libération totale de la mémoire. */ +static void g_armv7_itcond_operand_finalize(GArmV7ITCondOperand *); + +/* Compare un opérande avec un autre. */ +static int g_armv7_itcond_operand_compare(const GArmV7ITCondOperand *, const GArmV7ITCondOperand *); + +/* Traduit un opérande en version humainement lisible. */ +static void g_armv7_itcond_operand_print(const GArmV7ITCondOperand *, GBufferLine *, AsmSyntax); + + + +/* --------------------- TRANSPOSITIONS VIA CACHE DES OPERANDES --------------------- */ + + +/* Charge un opérande depuis une mémoire tampon. */ +static bool g_armv7_itcond_operand_unserialize(GArmV7ITCondOperand *, GAsmStorage *, GBinFormat *, packed_buffer *); + +/* Sauvegarde un opérande dans une mémoire tampon. */ +static bool g_armv7_itcond_operand_serialize(const GArmV7ITCondOperand *, GAsmStorage *, packed_buffer *); + + + +/* Indique le type défini par la GLib pour l'application d'une instruction IT. */ +G_DEFINE_TYPE(GArmV7ITCondOperand, g_armv7_itcond_operand, G_TYPE_ARCH_OPERAND); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des conditions d'application d'IT. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_itcond_operand_class_init(GArmV7ITCondOperandClass *klass) +{ + GObjectClass *object; /* Autre version de la classe */ + GArchOperandClass *operand; /* Version de classe parente */ + + object = G_OBJECT_CLASS(klass); + operand = G_ARCH_OPERAND_CLASS(klass); + + object->dispose = (GObjectFinalizeFunc/* ! */)g_armv7_itcond_operand_dispose; + object->finalize = (GObjectFinalizeFunc)g_armv7_itcond_operand_finalize; + + operand->compare = (operand_compare_fc)g_armv7_itcond_operand_compare; + operand->print = (operand_print_fc)g_armv7_itcond_operand_print; + + operand->unserialize = (unserialize_operand_fc)g_armv7_itcond_operand_unserialize; + operand->serialize = (serialize_operand_fc)g_armv7_itcond_operand_serialize; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance à initialiser. * +* * +* Description : Initialise une instance de conditions d'application d'IT. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_itcond_operand_init(GArmV7ITCondOperand *operand) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance d'objet GLib à traiter. * +* * +* Description : Supprime toutes les références externes. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_itcond_operand_dispose(GArmV7ITCondOperand *operand) +{ + G_OBJECT_CLASS(g_armv7_itcond_operand_parent_class)->dispose(G_OBJECT(operand)); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance d'objet GLib à traiter. * +* * +* Description : Procède à la libération totale de la mémoire. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_itcond_operand_finalize(GArmV7ITCondOperand *operand) +{ + G_OBJECT_CLASS(g_armv7_itcond_operand_parent_class)->finalize(G_OBJECT(operand)); + +} + + +/****************************************************************************** +* * +* Paramètres : a = premier opérande à consulter. * +* b = second opérande à consulter. * +* * +* Description : Compare un opérande avec un autre. * +* * +* Retour : Bilan de la comparaison. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static int g_armv7_itcond_operand_compare(const GArmV7ITCondOperand *a, const GArmV7ITCondOperand *b) +{ + int result; /* Bilan à faire remonter */ + + result = sort_boolean(a->firstcond, b->firstcond); + + if (result == 0) + result = sort_unsigned_long(a->mask, b->mask); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à traiter. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un opérande en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_itcond_operand_print(const GArmV7ITCondOperand *operand, GBufferLine *line, AsmSyntax syntax) +{ + const char *kw; /* Mot clef à imprimer */ + + switch (operand->firstcond) + { + case ACC_EQ: kw = "EQ"; break; + case ACC_NE: kw = "NE"; break; + case ACC_HS: kw = "HS"; break; + case ACC_LO: kw = "LO"; break; + case ACC_MI: kw = "MI"; break; + case ACC_PL: kw = "PL"; break; + case ACC_VS: kw = "VS"; break; + case ACC_VC: kw = "VC"; break; + case ACC_HI: kw = "HI"; break; + case ACC_LS: kw = "LS"; break; + case ACC_GE: kw = "GE"; break; + case ACC_LT: kw = "LT"; break; + case ACC_GT: kw = "GT"; break; + case ACC_LE: kw = "LE"; break; + case ACC_AL: kw = NULL; break; + case ACC_NV: kw = "NV"; break; + + default: /* Pour GCC... */ + assert(false); + kw = NULL; + break; + + } + + if (kw != NULL) + g_buffer_line_append_text(line, BLC_ASSEMBLY, kw, 2, RTT_KEY_WORD, NULL); + +} + + +/****************************************************************************** +* * +* Paramètres : firstcond = valeur brute de la condition d'exécution. * +* mask = masque d'interprétation pour l'instruction. * +* * +* Description : Crée un opérande lié à une instruction IT. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_armv7_itcond_operand_new(uint8_t firstcond, uint8_t mask) +{ + GArmV7ITCondOperand *result; /* Structure à retourner */ + + if (firstcond > ACC_NV) + return NULL; + + result = g_object_new(G_TYPE_ARMV7_ITCOND_OPERAND, NULL); + + result->firstcond = firstcond; + result->mask = mask; + + return G_ARCH_OPERAND(result); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à consulter. * +* * +* Description : Fournit la condition associée à l'opérande. * +* * +* Retour : Condition classique pour ARMv7. * +* * +* Remarques : - * +* * +******************************************************************************/ + +ArmCondCode g_armv7_itcond_operand_get_firstcond(const GArmV7ITCondOperand *operand) +{ + ArmCondCode result; /* Condition à renvoyer */ + + result = operand->firstcond; + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à consulter. * +* * +* Description : Fournit le masque d'interprétation de la condition. * +* * +* Retour : Masque de bits. * +* * +* Remarques : - * +* * +******************************************************************************/ + +uint8_t g_armv7_itcond_operand_get_mask(const GArmV7ITCondOperand *operand) +{ + uint8_t result; /* Valeur à retourner */ + + result = operand->mask; + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* TRANSPOSITIONS VIA CACHE DES OPERANDES */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : operand = opérande d'assemblage à constituer. * +* storage = mécanisme de sauvegarde à manipuler. * +* format = format binaire chargé associé à l'architecture. * +* pbuf = zone tampon à remplir. * +* * +* Description : Charge un opérande depuis une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static bool g_armv7_itcond_operand_unserialize(GArmV7ITCondOperand *operand, GAsmStorage *storage, GBinFormat *format, packed_buffer *pbuf) +{ + bool result; /* Bilan à retourner */ + GArchOperandClass *parent; /* Classe parente à consulter */ + + parent = G_ARCH_OPERAND_CLASS(g_armv7_itcond_operand_parent_class); + + result = parent->unserialize(G_ARCH_OPERAND(operand), storage, format, pbuf); + + if (result) + result = extract_packed_buffer(pbuf, &operand->firstcond, sizeof(ArmCondCode), true); + + if (result) + result = extract_packed_buffer(pbuf, &operand->mask, sizeof(uint8_t), false); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande d'assemblage à consulter. * +* storage = mécanisme de sauvegarde à manipuler. * +* pbuf = zone tampon à remplir. * +* * +* Description : Sauvegarde un opérande dans une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static bool g_armv7_itcond_operand_serialize(const GArmV7ITCondOperand *operand, GAsmStorage *storage, packed_buffer *pbuf) +{ + bool result; /* Bilan à retourner */ + GArchOperandClass *parent; /* Classe parente à consulter */ + + parent = G_ARCH_OPERAND_CLASS(g_armv7_itcond_operand_parent_class); + + result = parent->serialize(G_ARCH_OPERAND(operand), storage, pbuf); + + if (result) + result = extend_packed_buffer(pbuf, &operand->firstcond, sizeof(ArmCondCode), true); + + if (result) + result = extend_packed_buffer(pbuf, &operand->mask, sizeof(uint8_t), false); + + return result; + +} diff --git a/plugins/arm/v7/operands/it.h b/plugins/arm/v7/operands/it.h new file mode 100644 index 0000000..9e1706b --- /dev/null +++ b/plugins/arm/v7/operands/it.h @@ -0,0 +1,67 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * it.h - prototypes pour la manipulation des informations de l'instruction TI + * + * Copyright (C) 2018 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _PLUGINS_ARM_V7_OPERANDS_IT_H +#define _PLUGINS_ARM_V7_OPERANDS_IT_H + + +#include <glib-object.h> + + +#include <arch/operand.h> + + +#include "../../cond.h" + + + +#define G_TYPE_ARMV7_ITCOND_OPERAND g_armv7_itcond_operand_get_type() +#define G_ARMV7_ITCOND_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_ARMV7_ITCOND_OPERAND, GArmV7ITCondOperand)) +#define G_IS_ARMV7_ITCOND_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_ARMV7_ITCOND_OPERAND)) +#define G_ARMV7_ITCOND_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_ARMV7_ITCOND_OPERAND, GArmV7ITCondOperandClass)) +#define G_IS_ARMV7_ITCOND_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_ARMV7_ITCOND_OPERAND)) +#define G_ARMV7_ITCOND_OPERAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_ARMV7_ITCOND_OPERAND, GArmV7ITCondOperandClass)) + + +/* Définition d'un opérande organisant l'application d'une instruction IT (instance) */ +typedef struct _GArmV7ITCondOperand GArmV7ITCondOperand; + +/* Définition d'un opérande organisant l'application d'une instruction IT (classe) */ +typedef struct _GArmV7ITCondOperandClass GArmV7ITCondOperandClass; + + +/* Indique le type défini par la GLib pour l'application d'une instruction IT. */ +GType g_armv7_itcond_operand_get_type(void); + +/* Crée un opérande lié à une instruction IT. */ +GArchOperand *g_armv7_itcond_operand_new(uint8_t, uint8_t); + +/* Fournit la condition associée à l'opérande. */ +ArmCondCode g_armv7_itcond_operand_get_firstcond(const GArmV7ITCondOperand *); + +/* Fournit le masque d'interprétation de la condition. */ +uint8_t g_armv7_itcond_operand_get_mask(const GArmV7ITCondOperand *); + + + +#endif /* _PLUGINS_ARM_V7_OPERANDS_IT_H */ diff --git a/plugins/arm/v7/operands/register.c b/plugins/arm/v7/operands/register.c index 33a14f6..412d0f9 100644 --- a/plugins/arm/v7/operands/register.c +++ b/plugins/arm/v7/operands/register.c @@ -36,6 +36,8 @@ struct _GArmV7RegisterOperand { GRegisterOperand parent; /* Instance parente */ + bool write_back; /* Mise à jour du registre ? */ + }; @@ -59,6 +61,9 @@ static void g_armv7_register_operand_dispose(GArmV7RegisterOperand *); /* Procède à la libération totale de la mémoire. */ static void g_armv7_register_operand_finalize(GArmV7RegisterOperand *); +/* Traduit un opérande en version humainement lisible. */ +static void g_armv7_register_operand_print(const GArmV7RegisterOperand *, GBufferLine *, AsmSyntax); + /* --------------------- TRANSPOSITIONS VIA CACHE DES OPERANDES --------------------- */ @@ -100,6 +105,8 @@ static void g_armv7_register_operand_class_init(GArmV7RegisterOperandClass *klas operand = G_ARCH_OPERAND_CLASS(klass); + operand->print = (operand_print_fc)g_armv7_register_operand_print; + operand->unserialize = (unserialize_operand_fc)g_armv7_register_operand_unserialize; operand->serialize = (serialize_operand_fc)g_armv7_register_operand_serialize; @@ -120,6 +127,7 @@ static void g_armv7_register_operand_class_init(GArmV7RegisterOperandClass *klas static void g_armv7_register_operand_init(GArmV7RegisterOperand *operand) { + operand->write_back = false; } @@ -164,6 +172,34 @@ static void g_armv7_register_operand_finalize(GArmV7RegisterOperand *operand) /****************************************************************************** * * +* Paramètres : operand = opérande à traiter. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un opérande en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_register_operand_print(const GArmV7RegisterOperand *operand, GBufferLine *line, AsmSyntax syntax) +{ + GArchOperandClass *parent; /* Classe parente */ + + parent = G_ARCH_OPERAND_CLASS(g_armv7_register_operand_parent_class); + + parent->print(G_ARCH_OPERAND(operand), line, syntax); + + if (operand->write_back) + g_buffer_line_append_text(line, BLC_ASSEMBLY, "!", 1, RTT_PUNCT, NULL); + +} + + +/****************************************************************************** +* * * Paramètres : reg = registre déjà en place. * * * * Description : Crée un opérande visant un registre ARMv7. * @@ -210,6 +246,48 @@ const GArmV7Register *g_armv7_register_operand_get(const GArmV7RegisterOperand * } +/****************************************************************************** +* * +* Paramètres : operand = opérande représentant un registre. * +* wback = indique si le registre est mis à jour après coup. * +* * +* Description : Détermine si le registre est mis à jour après l'opération. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void g_armv7_register_operand_write_back(GArmV7RegisterOperand *operand, bool wback) +{ + operand->write_back = wback; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande représentant un registre. * +* * +* Description : Indique si le registre est mis à jour après coup. * +* * +* Retour : Evolution du registre. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool g_armv7_register_operand_is_written_back(const GArmV7RegisterOperand *operand) +{ + bool result; /* Statut à retourner */ + + result = operand->write_back; + + return result; + +} + /* ---------------------------------------------------------------------------------- */ /* TRANSPOSITIONS VIA CACHE DES OPERANDES */ @@ -237,6 +315,7 @@ static bool g_armv7_register_operand_unserialize(GArmV7RegisterOperand *operand, GArchOperandClass *parent; /* Classe parente à consulter */ uint8_t index; /* Identifiant de registre */ GArmV7Register *reg; /* Registre à intégrer */ + uint8_t wback; /* Mise à jour après coup ? */ parent = G_ARCH_OPERAND_CLASS(g_armv7_register_operand_parent_class); @@ -257,6 +336,15 @@ static bool g_armv7_register_operand_unserialize(GArmV7RegisterOperand *operand, } + if (result) + { + result = extract_packed_buffer(pbuf, &wback, sizeof(uint8_t), false); + + if (result) + operand->write_back = (wback == 1 ? true : false); + + } + return result; } @@ -281,6 +369,7 @@ static bool g_armv7_register_operand_serialize(const GArmV7RegisterOperand *oper bool result; /* Bilan à retourner */ GArchOperandClass *parent; /* Classe parente à consulter */ uint8_t index; /* Identifiant de registre */ + uint8_t wback; /* Mise à jour après coup ? */ parent = G_ARCH_OPERAND_CLASS(g_armv7_register_operand_parent_class); @@ -292,6 +381,12 @@ static bool g_armv7_register_operand_serialize(const GArmV7RegisterOperand *oper result = extend_packed_buffer(pbuf, &index, sizeof(uint8_t), false); } + if (result) + { + wback = (operand->write_back ? 1 : 0); + result = extend_packed_buffer(pbuf, &wback, sizeof(uint8_t), false); + } + return result; } diff --git a/plugins/arm/v7/operands/register.h b/plugins/arm/v7/operands/register.h index 61f5d6e..2bd13c6 100644 --- a/plugins/arm/v7/operands/register.h +++ b/plugins/arm/v7/operands/register.h @@ -60,6 +60,12 @@ GArchOperand *g_armv7_register_operand_new(GArmV7Register *); /* Fournit le registre ARMv7 associé à l'opérande. */ const GArmV7Register *g_armv7_register_operand_get(const GArmV7RegisterOperand *); +/* Détermine si le registre est mis à jour après l'opération. */ +void g_armv7_register_operand_write_back(GArmV7RegisterOperand *, bool); + +/* Indique si le registre est mis à jour après coup. */ +bool g_armv7_register_operand_is_written_back(const GArmV7RegisterOperand *); + #endif /* _PLUGINS_ARM_V7_OPERANDS_REGISTER_H */ diff --git a/plugins/arm/v7/operands/specreg.c b/plugins/arm/v7/operands/specreg.c new file mode 100644 index 0000000..233e6fd --- /dev/null +++ b/plugins/arm/v7/operands/specreg.c @@ -0,0 +1,378 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * specreg.c - registres spéciaux + * + * Copyright (C) 2018 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "specreg.h" + + +#include <arch/operand-int.h> +#include <common/sort.h> + + + +/* Définition d'un opérande de registre spécial (instance) */ +struct _GArmV7SpecRegOperand +{ + GArchOperand parent; /* Instance parente */ + + SpecRegType reg; /* Identifiant de registre */ + +}; + + +/* Définition d'un opérande de registre spécial (classe) */ +struct _GArmV7SpecRegOperandClass +{ + GArchOperandClass parent; /* Classe parente */ + +}; + + +/* Initialise la classe des opérandes de registre spécial. */ +static void g_armv7_specreg_operand_class_init(GArmV7SpecRegOperandClass *); + +/* Initialise une instance d'opérande de registre spécial. */ +static void g_armv7_specreg_operand_init(GArmV7SpecRegOperand *); + +/* Supprime toutes les références externes. */ +static void g_armv7_specreg_operand_dispose(GArmV7SpecRegOperand *); + +/* Procède à la libération totale de la mémoire. */ +static void g_armv7_specreg_operand_finalize(GArmV7SpecRegOperand *); + +/* Compare un opérande avec un autre. */ +static int g_armv7_specreg_operand_compare(const GArmV7SpecRegOperand *, const GArmV7SpecRegOperand *); + +/* Traduit un opérande en version humainement lisible. */ +static void g_armv7_specreg_operand_print(const GArmV7SpecRegOperand *, GBufferLine *, AsmSyntax); + + + +/* --------------------- TRANSPOSITIONS VIA CACHE DES OPERANDES --------------------- */ + + +/* Charge un opérande depuis une mémoire tampon. */ +static bool g_armv7_specreg_operand_unserialize(GArmV7SpecRegOperand *, GAsmStorage *, GBinFormat *, packed_buffer *); + +/* Sauvegarde un opérande dans une mémoire tampon. */ +static bool g_armv7_specreg_operand_serialize(const GArmV7SpecRegOperand *, GAsmStorage *, packed_buffer *); + + + +/* Indique le type défini par la GLib pour un opérande de registre spécial ARMv7. */ +G_DEFINE_TYPE(GArmV7SpecRegOperand, g_armv7_specreg_operand, G_TYPE_ARCH_OPERAND); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des opérandes de registre spécial. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_specreg_operand_class_init(GArmV7SpecRegOperandClass *klass) +{ + GObjectClass *object; /* Autre version de la classe */ + GArchOperandClass *operand; /* Version de classe parente */ + + object = G_OBJECT_CLASS(klass); + operand = G_ARCH_OPERAND_CLASS(klass); + + object->dispose = (GObjectFinalizeFunc/* ! */)g_armv7_specreg_operand_dispose; + object->finalize = (GObjectFinalizeFunc)g_armv7_specreg_operand_finalize; + + operand->compare = (operand_compare_fc)g_armv7_specreg_operand_compare; + operand->print = (operand_print_fc)g_armv7_specreg_operand_print; + + operand->unserialize = (unserialize_operand_fc)g_armv7_specreg_operand_unserialize; + operand->serialize = (serialize_operand_fc)g_armv7_specreg_operand_serialize; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance à initialiser. * +* * +* Description : Initialise une instance d'opérande de registre spécial. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_specreg_operand_init(GArmV7SpecRegOperand *operand) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance d'objet GLib à traiter. * +* * +* Description : Supprime toutes les références externes. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_specreg_operand_dispose(GArmV7SpecRegOperand *operand) +{ + G_OBJECT_CLASS(g_armv7_specreg_operand_parent_class)->dispose(G_OBJECT(operand)); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance d'objet GLib à traiter. * +* * +* Description : Procède à la libération totale de la mémoire. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_specreg_operand_finalize(GArmV7SpecRegOperand *operand) +{ + G_OBJECT_CLASS(g_armv7_specreg_operand_parent_class)->finalize(G_OBJECT(operand)); + +} + + +/****************************************************************************** +* * +* Paramètres : a = premier opérande à consulter. * +* b = second opérande à consulter. * +* * +* Description : Compare un opérande avec un autre. * +* * +* Retour : Bilan de la comparaison. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static int g_armv7_specreg_operand_compare(const GArmV7SpecRegOperand *a, const GArmV7SpecRegOperand *b) +{ + int result; /* Bilan à faire remonter */ + + result = sort_unsigned_long(a->reg, b->reg); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à traiter. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un opérande en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv7_specreg_operand_print(const GArmV7SpecRegOperand *operand, GBufferLine *line, AsmSyntax syntax) +{ + switch (operand->reg) + { + case SRT_APSR: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "APSR", 4, RTT_REGISTER, NULL); + break; + + case SRT_CPSR: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "CPSR", 4, RTT_REGISTER, NULL); + break; + + case SRT_SPSR: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "SPSR", 4, RTT_REGISTER, NULL); + break; + + case SRT_APSR_NZCVQ: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "APSR_nzcvq", 10, RTT_REGISTER, NULL); + break; + + case SRT_APSR_G: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "APSR_g", 6, RTT_REGISTER, NULL); + break; + + case SRT_APSR_NZCVQG: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "APSR_nzcvqg", 11, RTT_REGISTER, NULL); + break; + + case SRT_FPSID: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "FPSID", 5, RTT_REGISTER, NULL); + break; + + case SRT_FPSCR: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "FPSCR", 5, RTT_REGISTER, NULL); + break; + + case SRT_MVFR1: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "MVFR1", 5, RTT_REGISTER, NULL); + break; + + case SRT_MVFR0: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "MVFR0", 5, RTT_REGISTER, NULL); + break; + + case SRT_FPEXC: + g_buffer_line_append_text(line, BLC_ASSEMBLY, "FPEXC", 5, RTT_REGISTER, NULL); + break; + + } + +} + + +/****************************************************************************** +* * +* Paramètres : big = indication sur le boutisme à représenter. * +* * +* Description : Crée une représentation d'opérande de registre spécial. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_armv7_specreg_operand_new(SpecRegType reg) +{ + GArmV7SpecRegOperand *result; /* Structure à retourner */ + + result = g_object_new(G_TYPE_ARMV7_SPECREG_OPERAND, NULL); + + result->reg = reg; + + return G_ARCH_OPERAND(result); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à consulter. * +* * +* Description : Indique le type de registre spécial représenté. * +* * +* Retour : Identifiant de registre spécial. * +* * +* Remarques : - * +* * +******************************************************************************/ + +SpecRegType g_armv7_specreg_operand_get_register(const GArmV7SpecRegOperand *operand) +{ + SpecRegType result; /* Désignation à retourner */ + + result = operand->reg; + + return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/* TRANSPOSITIONS VIA CACHE DES OPERANDES */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +* * +* Paramètres : operand = opérande d'assemblage à constituer. * +* storage = mécanisme de sauvegarde à manipuler. * +* format = format binaire chargé associé à l'architecture. * +* pbuf = zone tampon à remplir. * +* * +* Description : Charge un opérande depuis une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static bool g_armv7_specreg_operand_unserialize(GArmV7SpecRegOperand *operand, GAsmStorage *storage, GBinFormat *format, packed_buffer *pbuf) +{ + bool result; /* Bilan à retourner */ + GArchOperandClass *parent; /* Classe parente à consulter */ + + parent = G_ARCH_OPERAND_CLASS(g_armv7_specreg_operand_parent_class); + + result = parent->unserialize(G_ARCH_OPERAND(operand), storage, format, pbuf); + + if (result) + result = extract_packed_buffer(pbuf, &operand->reg, sizeof(SpecRegType), true); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande d'assemblage à consulter. * +* storage = mécanisme de sauvegarde à manipuler. * +* pbuf = zone tampon à remplir. * +* * +* Description : Sauvegarde un opérande dans une mémoire tampon. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static bool g_armv7_specreg_operand_serialize(const GArmV7SpecRegOperand *operand, GAsmStorage *storage, packed_buffer *pbuf) +{ + bool result; /* Bilan à retourner */ + GArchOperandClass *parent; /* Classe parente à consulter */ + + parent = G_ARCH_OPERAND_CLASS(g_armv7_specreg_operand_parent_class); + + result = parent->serialize(G_ARCH_OPERAND(operand), storage, pbuf); + + if (result) + result = extend_packed_buffer(pbuf, &operand->reg, sizeof(SpecRegType), true); + + return result; + +} diff --git a/plugins/arm/v7/operands/specreg.h b/plugins/arm/v7/operands/specreg.h new file mode 100644 index 0000000..2d1d744 --- /dev/null +++ b/plugins/arm/v7/operands/specreg.h @@ -0,0 +1,79 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * specreg.h - prototypes pour les registres spéciaux + * + * Copyright (C) 2018 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _PLUGINS_ARM_V7_OPERANDS_SPECREG_H +#define _PLUGINS_ARM_V7_OPERANDS_SPECREG_H + + +#include <glib-object.h> + + +#include <arch/operand.h> + + + +#define G_TYPE_ARMV7_SPECREG_OPERAND g_armv7_specreg_operand_get_type() +#define G_ARMV7_SPECREG_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_ARMV7_SPECREG_OPERAND, GArmV7SpecRegOperand)) +#define G_IS_ARMV7_SPECREG_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_ARMV7_SPECREG_OPERAND)) +#define G_ARMV7_SPECREG_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_ARMV7_SPECREG_OPERAND, GArmV7SpecRegOperandClass)) +#define G_IS_ARMV7_SPECREG_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_ARMV7_SPECREG_OPERAND)) +#define G_ARMV7_SPECREG_OPERAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_ARMV7_SPECREG_OPERAND, GArmV7SpecRegOperandClass)) + + +/* Définition d'un opérande de registre spécial (instance) */ +typedef struct _GArmV7SpecRegOperand GArmV7SpecRegOperand; + +/* Définition d'un opérande de registre spécial (classe) */ +typedef struct _GArmV7SpecRegOperandClass GArmV7SpecRegOperandClass; + + +/* Désignation des registres spéciaux */ +typedef enum _SpecRegType +{ + SRT_APSR, + SRT_CPSR, + SRT_SPSR, + SRT_APSR_NZCVQ, + SRT_APSR_G, + SRT_APSR_NZCVQG, + SRT_FPSID, + SRT_FPSCR, + SRT_MVFR1, + SRT_MVFR0, + SRT_FPEXC + +} SpecRegType; + + +/* Indique le type défini par la GLib pour un opérande de registre spécial ARMv7. */ +GType g_armv7_specreg_operand_get_type(void); + +/* Crée une représentation d'opérande de registre spécial. */ +GArchOperand *g_armv7_specreg_operand_new(SpecRegType ); + +/* Indique le type de registre spécial représenté. */ +SpecRegType g_armv7_specreg_operand_get_register(const GArmV7SpecRegOperand *); + + + +#endif /* _PLUGINS_ARM_V7_OPERANDS_SPECREG_H */ |